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How to select 205 type mechanical seal for kettle? 1. Key points of structure: 205 type mechanical seal is used for kettle seal. It is a mechanical seal for kettle with double ends, multiple springs, outflow and transmission sleeve. It is a non-equilibrium structure. The purpose of sealing is mainly realized by the pressure difference between the sealing liquid in the sealing chamber and the sealed medium. Another set of sealing fluid is required
Published on: November 8, 2023-15 Number of hits: 25
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Application and characteristics of kettle mechanical seal manufacturers under special working conditions such as high temperature and pressure High temperature application: kettle mechanical seal has the following characteristics and application fields under high temperature conditions: high temperature stability: kettle mechanical seal needs to have high temperature stability to ensure the reliability of sealing effect under high temperature environment. Reasonable selection of high temperature resistant materials and coating technology can provide material resistance
Released on: November 8, 2023 Clicks: 31
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Key points for the design of mechanical seal manufacturers for reaction kettles Since the reaction kettles are gradually developing towards high pressure and large diameter, and the rotating speed is lower than that of mechanical seal for reaction kettles, the following points should be paid attention to in the design: 1. Since most reaction vessels are sealed with gas, the selection of materials should not only consider the corrosiveness of the medium, Also consider whether the material itself leaks. straight
Release time: 2023-10-24 Number of hits: 30
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Mechanical seal installation instruction 1 of kettle mechanical seal manufacturer. Installation instruction This installation instruction is prepared to make users familiar with the installation of our mechanical seal. Please read this manual carefully before installation. It is recommended that the installation operator should have some professional knowledge and skills in mechanical seal. (Or have professional knowledge of mechanical seal
Published on: October 18th, 2023 Clicks: 30
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Wear amount and service life of kettle mechanical seal manufacturer Wear amount and service life of kettle mechanical seal manufacturer I About service life In mechanical seal, the main wear part is seal friction pair end face, because the wear amount of seal end face is not large under normal working conditions, such as graphite friction pair with balance coefficient of 0.75, the wear amount per hour is about 0.1 μ m in water and oil
Published on: October 17, 2023 Clicks: 35
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Misuse of installation steps of kettle mechanical seal manufacturers 1. The greater the spring compression, the better the sealing effect is. In fact, too much spring compression can lead to rapid wear and instant burning of friction pairs; Excessive compression makes the spring lose the ability to adjust the end face of the moving ring, leading to seal failure. 2. The tighter the dynamic ring seal diagram is, the better. In fact, too tight the dynamic ring seal is harmful and useless. The first is to intensify the sealing ring and
Published on: July 22, 2023 Number of hits: 38
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Failure cause and failure analysis of kettle mechanical seal manufacturer Mechanical seal is a device to prevent fluid leakage, which is composed of at least one pair of end faces perpendicular to the rotation axis, under the action of fluid pressure, elastic force of compensation mechanism and the cooperation of auxiliary seal to keep sticking and relative sliding. Mechanical seals are widely used in petroleum and chemical enterprises. Because of their good sealing performance, stable performance and low leakage,
Published on: July 21, 2023 Number of hits: 34
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Precautions of the pump mechanical seal manufacturer When the temperature of the transmission medium is too high, too low or contains impurities, particles, inflammables and explosives, the corresponding measures such as blocking, flushing, cooling and filtering must be taken. Here are the precautions for the mechanical seal of the pump. The relevant information we need to know when using the pump mechanical seal is also
Published on: July 7, 2023 Clicks: 37
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The manufacturer's loss and service life of the kettle mechanical seal I About the service life In the mechanical seal, the main wear part is the end face of the seal friction pair, because the wear amount of the seal end face is not large under normal working conditions, such as the graphite friction pair with a balance coefficient of 0.75, the wear amount is about 0.1 μ m per hour in water and oil, that is, the wear amount of the seal friction pair that has been running continuously for 10000 hours
Published on: July 6, 2023 Clicks: 44
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What is the manufacturer of mechanical seal for kettle? What is the skeleton oil seal? Mechanical seal is a device used to solve the sealing between rotating shaft and engine body. The device consists of at least one pair of end faces perpendicular to the rotation axis, which are kept stuck and relatively sliding under the cooperation of fluid pressure, elastic force (or magnetic force) of compensation mechanism and auxiliary seal, and is commonly used in pumps, compressors
Published on: June 7, 2023 Clicks: 45
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Wear amount and service life of kettle mechanical seal manufacturer I About service life In mechanical seal, the main wear part is the end face of seal friction pair, because the wear amount of seal end face is not large under normal working conditions, such as graphite friction pair with balance coefficient of 0.75, the wear amount per hour in water and oil is about 0.1 μ m, that is to say, 10000 hours of continuous operation
Published on: June 6, 2023 Clicks: 43
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Structure and characteristics of mechanical seal for reaction kettle Definition of mechanical seal for reactor kettle: mechanical seal for reactor kettle is an ideal way to solve the problem of mixing shaft seal. According to the logarithm of sealing surface, there are single end and double end mechanical seals. The double end mechanical seal is generally equipped with a balanced circulation system, which can be used in inflammable, explosive, toxic, corrosive, high vacuum and other fields with stricter sealing requirements
Published on: May 16, 2023 Clicks: 48
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Five tips to solve the problem of water leakage of kettle mechanical seal manufacturers. The feature of mechanical seals is that they can be used for all kinds of equipment, especially equipment such as reactors and pumps. Because such equipment has high sealing requirements and can not enter impurities, so they are used more often. The problem of water leakage is really worrying. Water leakage causes poor sealing effect of sealing elements. This is a taboo for many people. following
Published on: May 15, 2023 Clicks: 49
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Mechanical seal is a device composed of at least one pair of end faces perpendicular to the rotation axis, under the action of fluid pressure and the elastic force (or magnetic force) of the compensation organization, and with the cooperation of the auxiliary seal, to maintain sticking and relative sliding, and to prevent fluid leakage. Introduce the machinery to everyone
Published on: April 10, 2023 Number of hits: 70
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Technical requirements of pump mechanical seal manufacturers during installation Mechanical seal is a mechanical part with high precision, which has a great impact on its correct device and operation and its service life. We generally follow the standards of the Ministry of Petrochemical Industry. The skill requirements for the pump and mechanical seal cooperation part of the device mechanical seal are as follows: 1. Shaft bending:. Not more than 0.05 mm;
Published on: March 22, 2023 Number of hits: 65
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Common sense of mechanical seal selection and use Mechanical seal is one of the precision and complex mechanical basic elements, and is the key component of various mechanical seal pumps, reaction synthesis kettles, turbine compressors, submersible motors and other equipment. Its sealing performance and service life depend on many factors, such as model selection, machine accuracy, correct installation and use, etc. 1、 Selection method Mechanical density
Published on: March 21, 2023 Clicks: 61
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Precautions during installation 1. Pay great attention to avoid installation deviation during installation (1). Tighten the gland after alignment of the coupling. The bolts should be evenly supported to prevent the end face of the gland from deflecting. Check each point with a feeler gauge, and the error should not be greater than 0.05 mm. (2) Check the fit clearance (i.e. concentricity) between the gland and the outer diameter of the shaft or shaft sleeve, and ensure that it is even all around. Use a feeler gauge
Published on: February 24, 2023 Clicks: 79
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What role does the pump mechanical seal manufacturer play in the pressure vessel? Because of its wide source of materials, convenient processing, low price, simple structure, convenient maintenance and other characteristics, packing seals are often used in occasions where the sealing requirements are not strict. However, the corrosion resistance, heat resistance, lubricity, impermeability and other aspects cannot fully meet the needs of chemical production, and mechanical seals are gradually replacing them. Mechanical seal is also called end
Published on: January 14, 2023 Clicks: 123
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Common materials of pump mechanical seal manufacturers and selection principles Selection method of mechanical seal: according to different working conditions and media properties, mechanical seals include high temperature and low temperature resistant mechanical seals, high pressure and corrosion resistant mechanical seals, granular media resistant mechanical seals and mechanical seals suitable for vaporizing light hydrocarbon media, Mechanical seals with different structure types and materials shall be selected according to different uses.
Published on: December 29, 2022 Clicks: 126
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The principle and requirements of the kettle mechanical seal manufacturer refer to the sealing device formed by two sealing elements sticking together and rotating relative to each other on a smooth and straight surface perpendicular to the axis. It is usually composed of static ring, dynamic ring, spring loading device (including push ring and spring box), auxiliary sealing ring (dynamic ring sealing ring, static ring sealing ring), etc, Anti rotation sleeve
Published on: December 8, 2022-12 Clicks: 132
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The mechanical seal manufacturer shall comply with and use the technical requirements. 1. The radial runout of the main shaft for installing the seal shall be ≤ 0.04mm (0.06mm), and the axial displacement shall be ≤ 0.3mm. The corresponding parts of the shaft and stationary ring seat shall be installed and processed according to the standard requirements. 2. All parts and components of the seal chamber, shaft and mechanical seal shall be cleaned and free of pollution, bump, scratch, especially impurities and dust
Published on: November 29, 2022-10 Number of hits: 70
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There are three main reasons for the seal function failure of the kettle mechanical seal (1) When the sealing surface is opened to repair the mechanical seal, 85% of the seal failure is not caused by wear, but has leaked before wear. As soon as the sealing surface is opened, solid particles in the medium enter the sealing surface under the action of liquid pressure. After the sealing surface is closed, these solid particles are embedded in the soft ring (through
Published on: November 30, 2022-10 Number of hits: 66
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The basic structure, functions and requirements of the mechanical seal manufacturer 1. The end face sealing pair (static ring, dynamic ring) of the mechanical seal makes the sealing face closely fit to prevent medium leakage. It requires that the static ring and the dynamic ring have good wear resistance. The dynamic ring can move flexibly in the axial direction, automatically compensate the wear of the sealing surface, and make it fit well with the static ring; The static ring is floating and buffering
Published on: November 16, 2022-16 Number of hits: 83
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The installation method, steps and installation precautions of mechanical seals for various types of pump kettles Chemical pumps, centrifugal pumps, multistage pumps, self-priming pumps and various sewage pump products all use mechanical seals. The mechanical seal of the water pump is a vulnerable part. In order to ensure the normal operation of the water pump, the mechanical seal is generally replaced once every three months. The structure and principle of the mechanical seal for pumps are generally divided into two parts: dynamic ring
Published on: November 17, 2022-17 Number of hits: 106
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Explanation on the purpose of flushing scheme of mechanical seal for kettle Generally, mechanical seal (especially cartridge mechanical seal) can be equipped with auxiliary system, but the most suitable flushing scheme should be selected according to different working conditions. For flushing, it is to directly inject liquid into the high-pressure side of double end mechanical seal or single end mechanical seal. Generally, pumps shall be flushed, especially
Published on: September 30, 2022 Clicks: 92
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Installation steps of mechanical seal for enamel reaction kettle: 1. Preparation stage of mechanical seal for glass lined reaction kettle: loosen and take out the static ring gland of mechanical seal water jacket, check and wipe the static ring, gasket and porcelain surface; After the stationary ring is sleeved with gasket, place the grinding surface upward into the water jacket; Fix the stationary ring with the stationary ring gland, and put on the bolts but do not tighten them, so as to ensure that the stationary ring can move and facilitate the later stage
Published on: September 29, 2022 Clicks: 130
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Matters needing attention in the use of equipment of mechanical seal manufacturers The quality of mechanical seals needs to be very high, because it is a kind of oil seal equipment of rotating machinery. It is a pair of or more pairs of end faces perpendicular to the rotating axis. Under the effect of the mechanical seal pressure of fluid pump and the elastic force (or magnetic force) of compensation arrangement, as well as the cooperation of auxiliary seals, the mechanical seals adhere to sticking, swallowing and relatively sliding
Published on: September 20, 2022 Clicks: 71
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Precautions for kettle mechanical seal when checking the surface of hard ring The failure of rubber ring is related to the use mode. Usually, high pressure is a reason for the failure of imported pressed O-ring. When it is found that the O-ring becomes rectangular or the ring becomes hard, the compression amount needs to be adjusted, otherwise it will become hot. (1) Hot cracking; (2) Ceramic ring fracture; (3) Nick; (4) The coating falls off. ceramics
Published on: September 19, 2022 Clicks: 69
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Cause analysis and treatment measures for leakage of mechanical seal for kettle In centrifugal pump and reaction kettle, the seal between rotating pump shaft and fixed shell is called shaft seal device. At present, centrifugal pumps and reactors are generally used for sealing and mechanical sealing. Mechanical seals are widely used because of their low leakage, long service life, low power loss, no need for frequent maintenance and little impact on the environment. Mechanical density
Published on: August 28, 2022 Clicks: 192
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The wear amount and service life of the mechanical seal manufacturer In the mechanical seal, the main wear part is the end face of the seal friction pair, because the wear amount of the seal end face is not large under normal working conditions, such as the graphite friction pair with a balance coefficient of 0.75, the wear amount per hour in water and oil is about 0.1 μ m, that is, the wear amount is about 1 mm after 10000 hours of continuous operation,
Published on: August 27, 2022 Clicks: 59
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Requirements of mechanical seal on seal ring The seal ring is the general name of dynamic ring and static ring (the same below), and is the main component of mechanical seal. To a great extent, seal ring determines the service performance and life of mechanical seal, so some requirements are put forward for it. Sufficient strength and rigidity: no damage under working conditions (such as pressure, temperature, sliding speed, etc.), and deformation shall be as far as possible
Published on: August 14, 2022 Clicks: 69
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Several external factors that affect the effect of mechanical seal are insufficient machining accuracy. There are many reasons, some of which are insufficient machining accuracy of mechanical seal itself. This reason is easy to attract people's attention and find. But sometimes the machining accuracy of other parts of the pump is not enough, which is not easy to attract people's attention. For example: pump shaft, shaft sleeve, pump body, seal chamber
Published on: August 13, 2022 Clicks: 63
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Requirements of mechanical seal manufacturers on seal rings The seal ring is the general name of dynamic ring and static ring (the same below), and is the main component of mechanical seal. To a great extent, seal ring determines the service performance and life of mechanical seal, so some requirements are put forward for it. Sufficient strength and rigidity: under working conditions (such as pressure, temperature and sliding
Published on: July 31, 2022 Clicks: 72
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How should the kettle mechanical seal be assembled? (1) The assembled parts must meet the specified technical requirements, and any unqualified parts cannot be assembled. For this reason, the parts must be strictly inspected before assembly. (2) The correct fitting method must be selected to meet the requirements of fitting accuracy. A lot of work in mechanical seal repair is to restore mutual matching
Published on: July 30, 2022 Clicks: 74
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The wear amount and service life of the mechanical seal manufacturer I. About the service life of the mechanical seal, the main wear part is the end face of the seal friction pair, because the wear amount of the seal end face is not large under normal working conditions, such as the graphite friction pair with a balance coefficient of 0.75, the wear amount per hour in water and oil is about 0.1 μ m, that is to say
Published on: June 28, 2022 Clicks: 99
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Selection and use of mechanical seal for kettle 1. Requirements of mechanical seal on machine precision (taking pump mechanical seal as an example) (1) The radial runout tolerance of shaft (or shaft sleeve) installed with mechanical seal shall not exceed 0.04~0.06MM. (2) Axial displacement of rotor shall not exceed 0.3mm&
Published on: June 27, 2022 Clicks: 73
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Five tips to solve the problem of water leakage of mechanical seals used in kettles. The feature of mechanical seals is that they can be used for various equipment, especially equipment such as reaction kettles and pumps. Because such equipment has high sealing requirements and cannot contain impurities, they are used more frequently. The problem of water leakage is really worrying. Water leakage causes poor sealing effect of sealing elements. This is a taboo for many people. The following five
Published on: June 18, 2022 Clicks: 286
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The selection of mechanical seal for kettle requires that the mechanical seal is one of the precision and complex mechanical basic elements, and is the key component of various pumps, reaction synthesis kettles, turbine compressors, submersible motors and other equipment. Its sealing performance and service life depend on many factors, such as model selection, machine accuracy, correct installation and use, etc. 1、 Selection method: the main selection method of mechanical seal
Published on: June 17, 2022 Clicks: 91
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Washing scheme of mechanical seal manufacturer Washing of mechanical seal is an effective measure to control the temperature of mechanical seal and extend the service life of mechanical seal. The purpose of flushing is to take away heat, maintain and improve lubrication, prevent liquid film gasification, prevent impurity accumulation, prevent the formation of air bags, etc. According to the flushing form, it can be divided into internal flushing and external flushing, in which the internal flushing is carried out by using the transmission medium, while
Published on: May 30, 2022 Clicks: 79
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With the requirements of production safety and environmental protection, the application of mechanical seal for kettle is more and more extensive. At present, most of the rotating equipment in most enterprises use mechanical seals to protect the dynamic and static sealing surfaces from leakage. However, mechanical seals are relatively precise parts of the equipment, which require high technical personnel in the process of operation and maintenance,
Published on: 2022-05-31 Number of hits: 70
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Maintenance method of kettle mechanical seal The service life of kettle mechanical seal varies with different conditions and environments, and is closely related to the working temperature, working pressure, materials in the kettle, rotating speed, sealing liquid medium, deviation, vibration and movement of mixing shaft. Therefore, careful operation and maintenance are very important to improve the service life of mechanical seals. 1. It should be noted that stirring is used in the startup kettle
Published on: 2022-05-17 Number of hits: 73
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Instructions for auxiliary device of kettle mechanical seal with balance tank I. Before installation of kettle mechanical seal, check that the axial movement of shaft is not more than 0.5rnm, the radial swing is not more than 0.5mm, the perpendicularity between flange and axis of kettle mechanical seal is not more than 0.05mm, and the shaft tolerance of mechanical seal part is h8. The finish is 1.6. 2、 Mechanical seal for kettle
Published on: 2022-05-16 Number of hits: 701
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Common damage phenomenon of mechanical seal manufacturer's model and treatment method 1. Damage environment of mechanical seal model 1. Mechanical seal model equipment will present collision or deformation phenomenon of dynamic ring end face during use. 2. If the end face specific pressure of the mechanical seal type equipment is too large, the mechanical seal type parts for kettle will conflict and burn
Published on: April 27, 2022 Clicks: 70
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Why should auxiliary facilities be used for kettle mechanical seal? In fluid machinery (such as pumps, compressors, agitators, centrifuges, etc.), the most demanding parts of mechanical seals for pumps under working conditions are mechanical seals. Bearing axial force like thrust bearing; Export the heat generated like a heat exchanger. It is difficult to achieve static sealing in high temperature, high pressure, corrosion prone and other parts, and the requirements are high
Published on: April 28, 2022 Clicks: 67
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Mechanical seal refers to a device composed of at least one pair of end faces perpendicular to the rotation axis, under the action of fluid pressure and the elastic force (or magnetic force) of the compensation organization, and with the cooperation of the auxiliary seal, to maintain sticking and relative sliding to prevent fluid leakage. Tell everyone about the leakage of mechanical seal
Published on: April 10, 2022 Clicks: 162
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Technical requirements for kettle mechanical seal during installation Mechanical seal is a mechanical part with high precision, which has a great impact on its correct device and operation and its service life. We generally follow the standards of the Ministry of Petrochemical Industry. The skill requirements for the pump and mechanical seal cooperation part of the device mechanical seal are as follows: 1. Shaft bending:. Not more than 0.05 mm; 2、
Published on: April 9, 2022 Clicks: 89
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The effect conflict pairs of the fundamental components of the mechanical seal manufacturer shall ensure a tight fit and form a sealing surface to avoid medium leakage. This requires that the pump mechanical seal should have outstanding wear resistance; The moving ring can move axially to actively compensate for the wear of the sealing surface, making it fit the stationary ring well; Static ring has floating and buffering effect. 2) Elastic elements (tension spring, bellows, barrier, etc.)
Published on: March 13, 2022 Clicks: 86
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The operating pressure of the seal should be the pressure of the sealing medium in the seal chamber. Since the medium pressure in the seal chamber and the mechanical seals are not equal to the operating pressure of the pump, and sometimes the operating pressure of the seal is higher, equal to or lower than the operating pressure of the pump, the operating pressure of the seal should be determined according to the detailed pump structure and conditions. For example,
Published on: March 12, 2022 Clicks: 101
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Misuse of mechanical seal manufacturer's installation steps 1. The greater the spring compression, the better the sealing effect is. In fact, too much spring compression can lead to rapid wear and instant burning of friction pairs; Excessive compression makes the spring lose the ability to adjust the end face of the moving ring, leading to seal failure. 2. The tighter the dynamic ring seal diagram is, the better. In fact, too tight the dynamic ring seal is harmful and useless. First, intensify the seal ring and shaft sleeve
Published on: February 25, 2022 Clicks: 70
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Various criteria for service life of mechanical seals for kettles Mechanical seals are one of the basic mechanical elements with precision and complex structure, and are key components of various pumps, reaction synthesis kettles, turbine compressors, submersible motors and other equipment. Its sealing performance and service life depend on many factors, such as model selection, machine accuracy, correct installation and use, etc. 1、 Selection method Mechanical seal according to work
Published on: February 26, 2022 Clicks: 133
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Working principle and sealing requirements of side mixing mechanical seal manufacturer Working principle and sealing requirements of side mixing mechanical seal, side mixing mechanical seal is a shaft seal device, also called end seal, which can prevent leakage by one or several pairs of end faces that are perpendicular to the shaft for relative sliding under the action of fluid pressure and elastic force (or magnetic force) of compensation mechanism, Reliable performance and leakage
Published on: February 13, 2022 Clicks: 170
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Instructions for installation of mechanical seal for kettle Before designing the mechanical seal for kettle, all conditions should be designed, and the PV value needed should be known, as well as the shape and volume of the equipment used. When considering these conditions, it is still necessary to know the size of friction power consumption, which will also affect the service life of itself and the consideration of materials to be used;
Published on: February 12, 2022 Clicks: 238
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Cause of leakage of kettle mechanical seal Cause of leakage of mechanical seal Faults of mechanical seal are mostly discovered after abnormal leakage, abnormal wear, abnormal torque and other phenomena occur. There are four reasons for mechanical seal failure: incorrect design and selection of mechanical seal; Poor mechanical seal quality; The accuracy of the machine using or installing mechanical seals cannot meet the requirements; machine
Published on: December 25, 2021 Clicks: 140
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With the development of modern petroleum, chemical industry, metallurgy, atomic energy, electronics and aerospace technology, the sealing requirements for high-pressure, ultrahigh pressure, high vacuum, ultrahigh vacuum and even ultrahigh vacuum equipment for different purposes are becoming higher and higher. Some of them have complex structures, with many pipes and transmission mechanisms inside; Some are very large, hundreds of cubic meters, or even thousands of cubic meters. In these devices
Published on: December 21, 2021 Clicks: 83
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Structure and characteristics of mechanical seal for reaction kettle Definition of mechanical seal for reactor kettle: mechanical seal for reactor kettle is an ideal way to solve the problem of mixing shaft seal. According to the logarithm of sealing surface, there are single end and double end mechanical seals. The double end mechanical seal is generally equipped with a balanced circulation system, which can be used in flammable, explosive, toxic, corrosive, high vacuum, etc
Published on: December 4, 2021-10 Clicks: 168
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Installation, operation, maintenance and fault analysis of mechanical seal for kettle Mechanical seal has been widely used in petrochemical and other industrial sectors due to its advantages of good sealing performance and long service life. However, if the mechanical seal is improperly installed, operated and maintained, accidents will often occur, At that time, mechanical seal was not as popular as packing seal because mechanical seal was a more precise part
Published on: November 27th, 2021 Clicks: 83
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What is the effect of overheating when using the kettle mechanical seal? According to different working conditions and media properties, mechanical seals include high and low temperature resistant mechanical seals, high pressure and corrosion resistant mechanical seals, granular media resistant mechanical seals, and mechanical seals suitable for easily vaporized light hydrocarbon media. Mechanical seals with different structure types and materials shall be selected according to different uses. One or both end faces have clearance
Published on: November 6, 2021-10 Number of hits: 208
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What are the leakage positions of common mechanical seal rings for kettle? The mechanical seal ring is a sealing machine equipment composed of two sealing components (static ring and dynamic ring), which are vertically split, bright and vertical surfaces that meet each other, and do a good job of relative overturning. It generates appropriate clamping force on the contact surface (inner hole) of the rotating dynamic ring and static ring by the working pressure of the sealing medium, so that
Published on: October 30, 2021-10 Clicks: 90
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The mechanical seal manufacturer tells you the method of service life. 1. The technical specification of the seal can meet the requirements. 2. Establish a suitable working environment in the sealing chamber, such as effectively controlling the temperature; Eliminate solid abrasive particles; Control the rapid fluctuation of pressure and temperature; An effective liquid film is formed between the sealing faces (double face seal and sealing liquid are used if necessary). 3. The rigidity and manufacturing precision of the pump are high.
Published on: October 21, 2021 Clicks: 72
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The difference and selection of pump packing seal and kettle mechanical seal The shaft seal is a sealing device set to prevent leakage at the pump shaft and shell. Commonly used shaft seals include packing seal, mechanical seal and power seal. The shaft seal of the reciprocating pump is usually a packing seal. When the medium is not allowed to leak, the diaphragm reciprocating pump can be used. Shaft seal of rotary pump (including vane pump, rotor pump, etc.)
Published on: October 20, 2021 Clicks: 101
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Operating environment of kettle mechanical seal The kettle mechanical seal is a mechanical seal used on the reaction kettle. It is a very important part of the reaction kettle, and it directly affects the service life and stability of the reaction kettle. Therefore, to improve the service life and reliability of mechanical seals for reactors, it is necessary to research and produce mechanical seals with higher parameters, so as to improve the performance and service life of reactors. We all know
Published on: October 1, 2021 Clicks: 85
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Common sense of selection and use of mechanical seal for kettle Mechanical seal is one of the precise and complex mechanical basic elements, and is the key component of various mechanical seal pumps, reaction synthesis kettles, turbine compressors, submersible motors and other equipment. Its sealing performance and service life depend on many factors, such as model selection, machine accuracy, correct installation and use, etc. 1、 Selection method Machinery
Published on: September 30, 2021 Clicks: 88
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Introduction to the use of mechanical seal equipment for kettle Mechanical seal equipment is a kind of oil seal equipment for rotating machinery. It has high requirements on the quality of the equipment used for the cooperation of other phase pump separated mechanical seals. It adheres to Grundfos under the cooperation of one or more pairs of mechanical seal faces perpendicular to the rotating axis under the effect of fluid pressure and compensation arrangement elasticity (or magnetic force) and auxiliary seals
Published on: September 4, 2021 Clicks: 88
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Effective measures to improve the installation quality of mechanical seal manufacturers The quality of mechanical seal is related to the normal operation of equipment. Improving the quality of mechanical seal is conducive to reducing seal failure, improving the efficiency of mechanical equipment, and increasing the service life of mechanical equipment. The effective measures to improve the installation quality of mechanical seals are as follows: 1. To avoid chemical corrosion of seals combined with flushing of transport media
Published on: August 29, 2021 Clicks: 64
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The installation details of the mechanical seal for the pump kettle can not be ignored. The correct installation and use of the mechanical seal for the pump can extend the service life of the mechanical seal for the pump and reduce the operating cost. Work carefully for each link to ensure the normal operation and production of the whole machine. What details can not be ignored in the installation of mechanical seals for pumps? 1. Shaft sleeve area for installing mechanical seal
Published on: August 28, 2021 Clicks: 63
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Performance and cause of mechanical seal failure for kettle 1. Mechanical seal parts are prone to failure. During the operation of rotating equipment, the sealing surface is easily affected by the environment and has damage, deformation and other conditions. Like a spring, if it is used for a long time, it will also have fracture, corrosion, relaxation and other conditions. The sealing ring of the internal parts of the mechanical seal will also be distorted and deformed,
Published on: August 21, 2021 Clicks: 122
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What are the external conditions that affect the mechanical seal for kettle? Mechanical seal usually consists of moving ring, stationary ring, pressing element and sealing element. The end faces of the moving ring and the fixed ring form a pair of friction pairs. The moving ring presses its end face on the end face of the fixed ring through the pressure of the liquid in the sealing chamber, and generates appropriate specific pressure on the end faces of the two rings to maintain a very thin liquid film to achieve a dense
Published on: August 7, 2021 Clicks: 72
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Selection knowledge and use of mechanical seal manufacturers Mechanical seal is one of the precision and complex mechanical basic elements, and is the key component of various mechanical seal pumps, reaction synthesis kettles, turbine compressors, submersible motors and other equipment. Its sealing performance and service life depend on many factors, such as model selection, machine accuracy, correct installation and use, etc. 1、 Selection method Machinery
Published on: July 29, 2021 Clicks: 83
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The accuracy of pumps with mechanical seals has a great influence on the amount of leakage in the performance of mechanical seals. Generally, the industrial pump (speed ≤ 3600r/min) is taken as an example, and the allowable values are introduced as follows. 1. Radial runout of the shaft The stationary seal box is used as the radial runout of the shaft
Published on: July 26, 2021 Number of hits: 219
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The quality inspection process of the mechanical seal manufacturer The mechanical seal is a sealing device composed of two sealing elements (static ring and dynamic ring) perpendicular to the shaft, smooth and straight surfaces that fit each other and rotate relative to each other. The pressure of sealing medium is used to generate appropriate pressing force on the contact surface (end face) of rotating rotating rotating ring and stationary ring, so that the two end faces can be closely combined and a layer is maintained between the end faces
Published on: June 29, 2021 Clicks: 103
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Published on: June 16, 2021 Clicks: 69
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Control system of dry gas seal - classification of supply gas and requirements Under the condition of correct design based on operating conditions, the operation of dry gas seal mainly depends on the normal matching between the two ends of the seal, namely, the dynamic ring and the static ring. If the gas entering the seal chamber is mixed with small impurities, the reliability and life of the whole dry gas seal system will be seriously affected. Therefore, To ensure its safe operation
Published on: June 16, 2021 Clicks: 371
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The flushing scheme of mechanical seals aims to directly inject liquid into the high-pressure side of double or single seals, which is called "flushing". Generally, pumps shall be flushed, especially light hydrocarbon pumps. 1. Flush to dissipate heat. Control the heat generated by the liquid seal. This can be achieved by flushing the seal chamber with liquid to take away heat and control the temperature rise. 2. Lower the liquid temperature. In some cases, liquid temperature
Published on: June 21, 2021 Clicks: 553
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How to check the shaft curvature of mechanical seal for kettle Mechanical seal is a kind of mechanical seal specially used for reaction kettle, pump equipment and equipment with high sealing requirements. It can provide a good sealing environment for many equipment. It is an essential part of some equipment that needs to be sealed, and it is also a part that needs to be used to prevent external bacteria from entering. It enhances the sealing of equipment,
Published on: June 16, 2021 Clicks: 116
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Common sense of selection and use of mechanical seal manufacturers Mechanical seal is one of the basic mechanical elements with complex structure, and is the key component of various mechanical seal pumps, reaction synthesis kettles, turbine compressors, submersible motors and other equipment. Its sealing performance and service life depend on many factors, such as model selection, machine accuracy, correct installation and use, etc. 1、 Model selection method Mechanical seal according to
Published on: 2021-05-29 Number of hits: 80
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Common sense of selection and use of mechanical seal manufacturers Mechanical seal is one of the basic mechanical elements with complex structure, and is the key component of various mechanical seal pumps, reaction synthesis kettles, turbine compressors, submersible motors and other equipment. Its sealing performance and service life depend on many factors, such as model selection, machine accuracy, correct installation and use, etc. 1、 Model selection method Mechanical seal according to
Published on: 2021-05-29 Number of hits: 77
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How to correctly install the installation sequence of mechanical seals for single end kettles? After the installation preparation is completed, the installation can be carried out in a certain sequence, completing the installation of static parts in the end cover and rotating parts on the shaft, and completing the overall assembly installation of seals. Taking the single end internal non-equilibrium mechanical seal for centrifugal pump shown in Figure 1 as an example, the installation sequence is as follows
Published on: 2021-05-17 Number of hits: 232
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How to select the sealing performance and service life of the mechanical seal for the base material of the kettle mechanical seal is related to the mechanical shaft seal material of each part, especially the end seal (friction pair) material, auxiliary seal material and spring material. 1、 Materials of friction pair for end seal Friction pair materials include graphite, ceramics, hardfacing carbide, tungsten carbide, SiC, filled with poly (IV)
Published on: April 30, 2021 Clicks: 75
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Misuse of mechanical seal manufacturers Mechanical seal is a kind of accessory that is used more frequently now, but in the process of using the product, it is easy to have some use errors to affect people's judgment, which will lead to the decline of use efficiency and damage. So to facilitate everyone's understanding, we will introduce its use errors next. 1. The greater the spring compression, the better the sealing effect
Published on: April 10, 2021 Number of hits: 68
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Role of mechanical seal for kettle Mechanical seal plays a good role in reducing medium leakage and stabilizing production, and also plays a good role when the working environment is relatively harsh, such as production under high temperature, high pressure, corrosion and other environments. Its specific role can be summarized in four aspects. 1、 Improve machine efficiency and reduce energy consumption 1. Reduce internal leakage, external leakage and penetration of the machine
Published on: March 31, 2021 Clicks: 126
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There is a large market space, especially in the double ring industry of mechanical seal manufacturers. Especially in the sealing industry, there is more room for double rings. According to the Assessment Report on the Supply and Demand Situation and Development Prospects of China's Seal Market in 2017-2023 released by Zhiyan Consulting, the sales revenue of China's seal industry in 2016 was about 117.81 billion yuan; According to CHPA statistics,
Published on: February 27, 2021 Number of hits: 134
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The mistake of mechanical seal manufacturer's installation steps is not true. Excessive spring compression can lead to rapid wear and instant burning of friction pairs; Excessive compression makes the spring lose the ability to adjust the end face of the moving ring, leading to seal failure. 2. The tighter the dynamic ring seal diagram is, the better. In fact, too tight the dynamic ring seal is harmful and useless. One is to intensify the wear between the seal ring and the shaft sleeve, causing premature leakage; Second, it's a big move
Published on: January 30, 2021 Clicks: 89
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What is the common sense of mechanical seal selection-- 204 For the selection of mechanical seal elements, the working conditions shall be taken into consideration, so as to select the appropriate seal element form, material and installation structure. The working conditions to be considered generally include: temperature, pressure, medium. Its mechanical seals also need to be selected according to the characteristics of the equipment itself. About temperature, such as N
Published on: January 16, 2021 Clicks: 98
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Introduction to the use of mechanical seal equipment for kettle Mechanical seal equipment is a kind of oil seal equipment for rotating machinery. It has high requirements on the quality of the equipment used for the cooperation of other phase pump separated mechanical seals. It adheres to Grundfos under the cooperation of one or more pairs of mechanical seal faces perpendicular to the rotating axis under the effect of fluid pressure and compensation arrangement elasticity (or magnetic force) and auxiliary seals
Published on: January 15, 2021 Clicks: 92
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With the development of modern industry, especially oil and gas field development, mining, metallurgy, electric power, paper making, fine chemical industry, salt chemical industry, water supply and drainage, sewage treatment, food processing and other industries, there are more and more pumps conveying solid particle media. The fluid medium containing solid particles and fibers is very unfavorable to the work of pump mechanical seal
Published on: December 26, 2020 Number of hits: 89
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The classification of solid particle impurities and the impurity media used by mechanical seal manufacturers can be roughly classified as follows: (1) According to rheology, ① Bingham fluids such as paint, asphalt, clay mud, etc.; ② Pseudoplastic fluid, such as polymer solution and melt, starch slurry, fiber ester, glass solution, etc.; ③ Expansive fluid, such as starch with water, mica with water, mud sand and water in proper proportion
Published on: December 26, 2020 Number of hits: 99
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Common faults and solutions of mechanical seal for kettle 1. Fault phenomenon: leakage occurs at the sealing surface. Fault cause: screw thread is loose; The sealing surface is damaged. Troubleshooting: Retighten the screw; Regrind and polish the sealing surface. 2. Fault phenomenon: there is leakage at the valve. Cause of fault: the valve rod (needle) and valve port sealing surface are damaged. Troubleshooting: repair and replace the valve rod
Published on: November 27, 2020 Number of hits: 202
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Corrosion prevention of mechanical seal for kettle is very important. Today, I would like to share some common knowledge about corrosion prevention of non-metallic rings: 1. Graphite ring corrosion. There are three reasons for the corrosion of resin impregnated impermeable graphite ring: first, when the end surface is overheated and the temperature is greater than 180oC, the impregnated resin will break away from the graphite ring, reducing the wear resistance of the ring; Second, if the impregnated resin is not properly selected
Published on: November 28, 2020 Number of hits: 97
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Characteristics of reactor sealing device Understand the characteristics of different types of reactors to master the key points of mechanical seal design. 1. From the lubrication point of view, the mechanical seal used for the plug-in reaction kettle at the side of the mixing shaft generally does not have the problem of poor lubrication, and the liquid level of the medium in the kettle must be kept at a certain height. For the reaction kettle with shaft protruding from one side, the shaft is in cantilever state, so it is easy to produce
Published on: December 12, 2020 Number of hits: 107
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The leakage point of chemical pump The leakage point of chemical pump The mechanical seal for pump has a wide range of types and different models, but there are five main leakage points: the seal between the shaft sleeve and the seal between the shaft sleeve and the seal between the shaft sleeve Sealing between stationary rings Sealing between stationary ring and stationary ring seat Sealing between end cover and pump body
Published on: November 13, 2020 Clicks: 87
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General knowledge of mechanical seal Working principle of mechanical seal Mechanical seal is a shaft seal device that can prevent leakage by means of one or more pairs of opposite sliding end faces perpendicular to the shaft under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and matching with auxiliary seals. 2. Selection of common materials for mechanical seal: purified water; normal atmospheric temperature; (Dynamic) 9CR18, 1CR13 surfacing cobalt chromium
Published on: November 3, 2020 Number of hits: 73
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Published on: September 30, 2020 Clicks: 52
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HU2 type multi spring single end mechanical seal HU2 type mechanical seal dimensions comply with ISO3069, DIN24960 and GB/T6556 standards, strong interchangeability, can replace imported mechanical seal 59U, M7N, etc. The auxiliary seal ring can be rubber O-ring, PTFE V-ring, PTFE wedge ring according to user requirements. No rotation with axis
Published on: September 26, 2020 Number of hits: 62
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Mechanical seal factory tutor you to clean and check! The working principle of mechanical seal requires that there is no impurity inside the mechanical seal. Before assembling the mechanical seal, the moving ring, stationary ring, shaft sleeve and other parts shall be thoroughly cleaned. Key inspection: 1. Whether there are scratches, cracks and other defects on the surface of the moving and stationary rings, which will cause serious leakage of the mechanical seal. If possible, special tools can be used to check the seal
Published on: September 12, 2020 Clicks: 137
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Structural features of 205 type mechanical seal for kettle: 205 type mechanical seal for kettle is double end face, multi spring unbalanced structure. The purpose of sealing is mainly achieved by the pressure difference between the sealing liquid in the sealing chamber and the sealed medium. The sealing liquid needs another set of device to circulate. The whole system is complex. Therefore, it is only used for sealing flammable, explosive, toxic and strongly corrosive media in special occasions. Friction pair
Published on: September 12, 2020 Clicks: 114
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Commissioning test of mechanical seal for double end kettles (including 2001 and 2002 models) (1) Static pressure test:. Cycle B
Published on: July 15, 2020 Clicks: 206
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Mechanical seal, also known as end face seal, is a device used to solve the sealing between rotating shaft and engine body. It is a device to prevent fluid leakage, which is composed of at least one pair of fluid pressures at the end faces perpendicular to the rotating axis and the elastic force (or magnetic force) of the compensation mechanism, and the auxiliary seal to keep the joint and relative sliding, and is commonly used in rotary pumps, compressors, reaction agitators, etc
Published on: May 14, 2020 Clicks: 184
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The mechanical seal manufacturer introduces the advantages and disadvantages of the product. 1. Advantages (1) The structure is reliable, and the leakage can be limited to a small amount. As long as the surface roughness and straightness of the main sealing surface can meet the requirements, and as long as the wear resistance of the material is good, the mechanical seal can achieve a small amount of leakage, or even the leakage can not be seen by the naked eye. (2) Long life. In mechanical seals, the main wear part is the seal friction pair
Published on: April 18, 2020 Number of hits: 116
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204 Introduction to the basic knowledge of mechanical seal Mechanical seal (end face seal) is a device used to solve the sealing between rotating shaft and engine body. It is a device to prevent fluid leakage, which is composed of at least one pair of fluid pressures on the end faces perpendicular to the rotation axis, the elastic force (or magnetic force) of the compensation mechanism, and the auxiliary seal, which are kept together and sliding relatively. It is commonly used in pumps, compressors
Published on: April 15, 2020 Clicks: 192
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Cause analysis of thermal damage of mechanical seal for kettle thermal damage is mainly overheating. It is difficult to calculate the thermal effect of mechanical seal, and it can only be designed correctly from the perspective of considering thermal influence factors, but the friction coefficient pV value and thermal conductivity, dry running performance and practical experience must be known. Thermal damage includes the following types: 1) Thermal cracking, usually under the action of excessive thermal stress, the sealing ring
Published on: February 29, 2020 Clicks: 144
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The mechanical seal manufacturer introduces the typical fault types and properties. The mechanical seal damage types include chemical damage, thermal damage and mechanical damage. (1) Chemical damage 1) Surface corrosion If the metal surface contacts the corrosive medium, but the metal itself does not corrode, surface corrosion will occur. In order to prevent surface corrosion, corrosion resistant materials can be used. Stainless steel has good corrosion resistance because of this
Published on: February 29, 2020 Number of hits: 135
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Mechanical seal manufacturer's installation 1 Installation principle (1) Be familiar with the equipment. Before installing the mechanical seal, be familiar with the rotating speed and diameter of the shaft; Consider the manufacturing process of mechanical seal, relevant dimensions of seal chamber, service time of equipment, staff level of production equipment, etc. (2) Estimate the pressure of the medium. The sealing chamber pressure of centrifugal pump is usually
Published on: January 4, 2020 Number of hits: 120
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Technical requirements for main parts of kettle mechanical seal 1. Flatness and roughness requirements for sealing end face 2. Parallelism of sealing end face of stationary ring and moving ring and the end face contacting the auxiliary sealing ring shall comply with grade 7 tolerance in GB1184~80 Regulations on Form and Position Tolerances without Tolerance Indications 3. Surface roughness of contact between stationary ring and moving ring and auxiliary sealing ring shall comply with JB4127-8
Published on: January 1, 2020 Number of hits: 230
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The function of mechanical seal The manufacturer of mechanical seal tells you! 1、 Improve machine efficiency and reduce energy consumption. 1. Reduce the internal leakage, external leakage and penetration of the machine, and improve the volumetric efficiency of the machine. For example, Daqing Refinery will coking 5FDJ5 × 2. The impeller mouth ring of centrifugal pump was changed into mechanical seal, which improved the pump efficiency by 3.6% and 5.6%. 2. Reduce friction loss and improve the
Published on: September 12, 2019 Clicks: 127
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Let the mechanical seal manufacturer tell you the installation and technical requirements of the mechanical seal of centrifugal pump! 1、 Technical requirements for matching parts of machine, pump and mechanical seal: 1. The maximum shaft bending shall not exceed 0.05mm. 2. All parts in the component meet the drawing requirements. 3. The gland shall be tightened after the alignment of the coupling, and the compression screws shall be tightened to prevent the flange surface from deflection.
Published on: October 15, 2019 Clicks: 129
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Does the mechanical seal include oil seal? The mechanical seal manufacturer tells you! Mechanical seals cover a wide range. It can be seen that this piece can help the equipment to create better sealing conditions, and can give the equipment more rapid operation. Although its structure is complex and precise, it is also because of this, so it is easy to use. Does the seal actually include an oil seal? 1. The oil seal is generally tight
Published on: December 21, 2019 Clicks: 317
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Technical conditions of kettle mechanical seals Only the kettle mechanical seals that meet the technical conditions are qualified products, but because of their too many models and different equipment, their requirements are different, and their production technologies are also different. So the quality of the products is different. The main purpose of formulating its technical conditions is to standardize the later production. Its technical conditions include:
Published on: December 17, 2019 Clicks: 170
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204 Overview of mechanical seal Mechanical seal (end face seal) is a device used to solve the sealing between rotating shaft and engine body. It is a device to prevent fluid leakage, which is composed of at least one pair of fluid pressures on the end faces perpendicular to the rotation axis, the elastic force (or magnetic force) of the compensation mechanism, and the auxiliary seal to keep the joint and relative sliding, and is commonly used in pumps, compressors, reactions
Published on: December 7, 2019 Number of hits: 156
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Instructions for use of kettle mechanical seal 1. Mechanical seal (end face seal) is a device to prevent fluid leakage, which is composed of at least one pair of end faces perpendicular to the rotation axis, under the cooperation of fluid pressure, elastic force of compensation mechanism and auxiliary seal, to keep sticking and relatively sliding. 2. Mechanical seal for kettle, applicable to all kinds of steel kettle, enamel kettle, glass lined kettle mixing shaft and
Published on: December 3, 2019 Clicks: 154
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The mechanical seal manufacturer introduces the flushing scheme of the seal for the purpose of directly injecting liquid into the high-pressure side of the double or single seal, which is called "flushing". Generally, pumps shall be flushed, especially light hydrocarbon pumps. 1. Flush to dissipate heat. The heat generated by the liquid seal must be controlled. This can be achieved by flushing the seal chamber with liquid to take away heat and control the temperature rise. 2. Lower the liquid temperature. stay
Published on: January 15, 2020 Number of hits: 127
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The mechanical seal manufacturer introduces the working characteristics of parallel water pumps: there are many ways to change the working conditions of the pump system, one of which is the performance synthesis of multiple pump equipment. When one pump cannot meet the working conditions, multiple pumps need to be connected in parallel or in series to obtain the desired flow and head. When the first water pump is connected with the suction pipe of the second or multiple water pumps, the outlet pipe
Published on: November 12, 2019 Clicks: 169
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What is the difference between the mechanical seal for the agitator and the mechanical seal for the pump? Mechanical seal for agitator kettle and mechanical seal for pump are mechanical parts used to seal rotating shaft and static pump chamber. The sealed part is a cylindrical area, the shaft in the equipment rotates and penetrates inside and outside the equipment, and the body part is still and full of fluid medium inside. Driven by pressure difference, concentration difference, temperature difference, etc
Published on: November 9, 2019 Clicks: 145
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Measurement of end face wear of mechanical seal manufacturer 1. Weighing method The weighing method is to measure the mass change before and after the friction pair ring test (operation) to determine the wear amount. It is generally carried out on the balance, which is a simple and easy common method. 2. Length measurement This method is to determine the wear amount by measuring}.: f The normal dimension change before and after the end face test of the friction pair. Generally, there should be a measurement benchmark
Published on: March 14, 2020 Number of hits: 102
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The utility model relates to the technical field of mechanical seal devices, in particular to a mechanical seal for a dry running kettle. Background technology: Kettle mechanical seal is an ideal way to solve the problem of mixing shaft seal. According to the logarithm of sealing surface, there are single end mechanical seal and double end mechanical seal. Double end mechanical seal is generally equipped with a balanced circulation system, which can be used in flammable, explosive, toxic, corrosive, high-tech
Published on: October 26, 2019 Number of hits: 124
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204 Misuse of mechanical seal manufacturers 1. The greater the spring compression, the better the sealing effect. In fact, too much spring compression can lead to rapid wear and instant burning of friction pairs; Excessive compression makes the spring lose the ability to adjust the end face of the moving ring, leading to seal failure. 2. The tighter the dynamic ring seal diagram is, the better. In fact, too tight the dynamic ring seal is harmful and useless. First, intensify the seal ring and shaft
Published on: October 26, 2019 Number of hits: 117
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Mechanical seal is a shaft seal device of rotating machinery. Such as centrifugal pumps, centrifuges, reaction kettles, compressors and other equipment. Since the transmission shaft runs through the inside and outside of the equipment, there is a circumferential gap between the shaft and the equipment, through which the medium in the equipment leaks outward. If the pressure in the equipment is lower than atmospheric pressure, the air flows to the equipment
Published on: July 1, 2020 Clicks: 90
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The mechanical seal is a mechanical part used to seal the rotating shaft and the stationary pump chamber. The sealed part is a cylindrical area, the shaft in the equipment rotates and penetrates inside and outside the equipment, and the body part is still and full of fluid medium inside. Driven by pressure difference, concentration difference and temperature difference, fluids inside and outside the equipment exchange with each other; "Sealing" means to control the fluid exchange between internal and external areas, so that“
Published on: December 11, 2020 Clicks: 87
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204 Mechanical seal manufacturer's introduction to mechanical seal of centrifugal pump I. Technical requirements for matching machine, pump and mechanical seal: 1. The maximum shaft bending shall not exceed 0.05mm. 2. All parts in the component meet the drawing requirements. 3. The gland shall be tightened after the alignment of the coupling, and the compression screws shall be tightened to prevent the flange surface from deflection. 2、 Mechanical seal for pump
Published on: December 24, 2019 Number of hits: 153
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Some key points of mechanical seal installation and disassembly There should be a layer of liquid film between the seal rings of mechanical seal, which has the following functions: 1. Support most of the water pressure load on the seal. 2. As a lubricant, reduce the friction heat generated by the seal ring. 3. Minimize rough contact to reduce wear rate. 4. As the heat transfer medium, transfer the direct area of the seal ring
Published on: October 12, 2019 Number of hits: 152
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The reason for the leakage of newly installed mechanical seal after it is put into operation is mostly the installation problem. 1) The designed face specific pressure is too small to meet the face specific pressure required by the mechanical seal; 2) The compression of mechanical seal spring is too small; 3) The roughness of mechanical seal end face does not meet the requirements; 4) The flatness of mechanical seal end face is not enough; 5) Mechanical seal ring under pressure and
Published on: October 10, 2019 Clicks: 153
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The mechanical seal for the reactor is the mechanical seal used on the reactor, which is a very important part of the reactor, and it directly affects the service life and stability of the reactor. Therefore, to improve the service life and reliability of mechanical seals for reactors, it is necessary to research and produce mechanical seals with higher parameters, so as to improve the performance and service life of reactors& nb
Published on: October 9, 2019 Clicks: 204
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Introduction to mechanical seal Mechanical seal is one of the precision and complex mechanical basic elements, and is the key component of various pumps, reaction synthesis kettles, turbine compressors, submersible motors and other equipment. Its sealing performance and service life depend on many factors, such as model selection, machine accuracy, correct installation and use, etc. Basic knowledge of mechanical seals 1. Basic overview of mechanical seals
Published on: October 9, 2019 Clicks: 113
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The mechanical seal manufacturer introduces advantages and disadvantages 1. Advantages (1) The structure is reliable, and the leakage can be limited to a small amount. As long as the surface roughness and straightness of the main sealing surface can meet the requirements, and as long as the wear resistance of the material is good, the mechanical seal can achieve a small amount of leakage, or even the leakage can not be seen by the naked eye. (2) Long life. In mechanical seals, the main wearing part is the end face of the seal friction pair,
Published on: November 30, 2019 Clicks: 118
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Let 204 mechanical seal manufacturer tell you about the normal operation and maintenance of mechanical seals! 1. Preparations and precautions before startup a. Fully check whether the mechanical seal, accessory devices and pipeline installation are complete and meet the technical requirements. b. Static pressure test shall be carried out before starting the mechanical seal to check whether there is leakage of the mechanical seal. If there are many leaks, find out the causes
Published on: September 24, 2019 Clicks: 93
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Special mechanical seal refers to the mechanical seal that is different from ordinary mechanical seal in terms of medium, pressure, speed, temperature, structure and use. It is also called high parameter mechanical seal in China. The mechanical seal is divided into ordinary and special types, which is convenient to describe the structure, working conditions and use requirements of mechanical seal. Therefore, some seal manufacturers list normal seal products, High loads are also listed
Published on: September 16, 2019 Number of hits: 380
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The mechanical seal manufacturer introduces the role of the seal. First, improve the efficiency of the machine and reduce energy consumption. 1. Reduce the internal leakage, external leakage and penetration of the machine, and improve the volumetric efficiency of the machine. For example, Daqing Refinery will coking 5FDJ5 × 2. The impeller mouth ring of centrifugal pump was changed into mechanical seal, which improved the pump efficiency by 3.6% and 5.6%. 2. Reduce friction loss and improve mechanical efficiency of the machine
Published on: December 28, 2019 Number of hits: 110
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204 Cause of mechanical seal leakage (I) Leakage caused by pressure 1. Fault I: Mechanical seal leakage caused by high pressure and pressure wave Cause: The specific pressure of spring and the total specific pressure design are too large. When the pressure in the seal cavity exceeds 3MPa, the specific pressure of the seal face will be too large, the liquid film will be difficult to form, the seal face will be severely worn, and the heat generation will increase, resulting in
Published on: September 9, 2019 Number of hits: 218
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The mechanical seal manufacturer introduces the causes and analysis of common failure seal failure (I) The seal failure mainly has the following three reasons: 1. When the sealing surface is opened and the mechanical seal is repaired, 85% of the seal failure is not caused by wear, but has leaked before wear. When the sealing surface is opened, solid particles in the medium enter under the action of liquid pressure
Published on: August 17, 2019 Number of hits: 124
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The installation of mechanical seal for kettle shall ensure that the installation chamber is clean and free of any foreign matter. The shaft or sleeve matched with the mechanical seal shall be of correct size, smooth surface, good straightness, and free from burrs, sharp corners, nicks or deep scratches. Seal all holes in the seal chamber that are not used by the mechanical seal during operation. The end face of the seal chamber must be clean, smooth and perpendicular to the axis line. The two boxes of the horizontal split pump must
Published on: November 26, 2019 Clicks: 122
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Mechanical seal manufacturers have several structures to enhance lubrication. 1. End face eccentricity: for general mechanical seals, the center of the moving ring, the center of the stationary ring and the center line of the shaft are all in a straight line. If the end face center of a ring in the moving ring or the stationary ring is made to be offset from the center line of the shaft by a certain distance, the ring can constantly bring lubricating fluid to the sliding surface for lubrication when rotating. It should be noted that
Published on: August 10, 2019 Clicks: 110
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Lubrication of mechanical seal for kettle Mechanical seal working in liquid medium generally relies on the liquid film formed by liquid medium between the dynamic and static ring friction surfaces for lubrication. Therefore, maintaining the liquid film between friction surfaces is essential to ensure the stable operation of mechanical seals and extend their service life. According to different conditions, the friction between the dynamic and static rings of the mechanical seal may occur in the following cases: (1)
Published on: October 29, 2020 Number of hits: 88
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Let the manufacturer of kettle mechanical seal tell you the external reasons that affect the pump mechanical seal! （1） The axial displacement of the pump shaft The sealing surface of the mechanical seal should have a certain specific pressure (0.4~0.6MPa), so as to achieve the purpose of sealing. The tightness of both ends can be adjusted by the spring. To ensure this specific pressure, the pump shaft shall not have too much displacement (≤ 0.5
Published on: May 31, 2020 Clicks: 93
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The mechanical seal manufacturer's introduction principle and requirements The mechanical seal refers to a sealing device formed by two sealing elements sticking together on a smooth and straight surface perpendicular to the axis and rotating relative to each other. It usually consists of static ring, dynamic ring, spring loading device (including push ring and spring box), auxiliary sealing ring (dynamic ring sealing ring, static ring sealing ring) and other elements, Anti rotation inside the anti rotation sleeve
Published on: July 30, 2019 Clicks: 122
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Common materials of mechanical seal shall be clean water at normal temperature: (dynamic) 9Cr18, 1Cr13 surfacing cobalt chromium tungsten, cast iron; (Static) resin impregnated graphite, bronze, phenolic plastic. River water (with silt), normal temperature: (dynamic) tungsten carbide, (static) tungsten carbide. Seawater, normal temperature: (dynamic) tungsten carbide, 1Cr13 surfacing cobalt chromium tungsten, cast iron; Resin impregnated graphite,
Published on: November 23, 2019 Number of hits: 82
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Advantages and disadvantages of mechanical seal for kettle 1. Advantages (1) The structure is reliable, and the leakage can be limited to a small amount. As long as the surface roughness and straightness of the main sealing surface can meet the requirements, and as long as the wear resistance of the material is good, the mechanical seal can achieve a small amount of leakage, even the leakage can not be seen by the naked eye. (2) Long life. In the mechanical seal, the main wearing part is the end face of the seal friction pair, because
Published on: July 23, 2019 Number of hits: 159
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Let 204 mechanical seal manufacturer tell you the working principle of mechanical seal! Mechanical seal is a shaft seal device that can prevent leakage by a pair or several pairs of end faces that slide relative to the shaft under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and are matched with auxiliary seals. Selection of common materials for mechanical seal: purified water; normal atmospheric temperature; (Dynamic) 9CR18, 1CR13
Published on: July 9, 2019 Number of hits: 455
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Normal operation and maintenance of mechanical seal manufacturer 1. Preparations and precautions before startup a. Comprehensive inspection of mechanical seal, accessory devices and pipeline installation is complete and meets technical requirements. b. Static pressure test shall be carried out before starting the mechanical seal to check whether there is leakage of the mechanical seal. If there are many leaks, find out the causes and try to eliminate them. If it is still invalid, it shall be disassembled for inspection
Published on: October 29, 2019 Number of hits: 96
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204 Basic knowledge of mechanical seal 1. Basic concept of mechanical seal: mechanical seal refers to a device to prevent fluid leakage, which is composed of at least one pair of end faces perpendicular to the rotation axis, under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism, and with the cooperation of the auxiliary seal, to keep sticking and sliding. The auxiliary seal of compensation ring is metal bellows, which is called bellows machine
Published on: July 2, 2019 Number of hits: 189
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The technical requirements of mechanical seal for kettle are that the seal ring is the general name of dynamic ring and static ring (the same below), and it is the main component of mechanical seal. To a great extent, seal ring determines the service performance and life of mechanical seal, so some requirements are put forward for it. There shall be enough strength and rigidity to avoid damage under working conditions (such as pressure, temperature and sliding speed), and the deformation shall be as small as possible,
Published on: October 15, 2020 Clicks: 91
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The mechanical seal manufacturer introduced the system composition shaft seal box. In the past, the shaft seal box containing mechanical seal was a stuffing box designed for soft packing seal. It is not suitable for holding mechanical seals. Not only is the size too small, the gap too narrow, but also the simple cylinder shape is not suitable. The standard of oversized mechanical seal shaft seal box has been formulated abroad. In addition, the United States_ Durametalek and British Fluid
Published on: October 30, 2020 Number of hits: 80
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Normal operation and maintenance of mechanical seal for kettle 1. Preparations and precautions before startup a. Fully check whether the mechanical seal, auxiliary devices and pipeline installation are complete and meet the technical requirements. b. Static pressure test shall be carried out before starting the mechanical seal to check whether there is leakage of the mechanical seal. If there are many leaks, find out the causes and try to eliminate them. If it is still invalid, it shall be disassembled for inspection
Published on: March 28, 2020 Number of hits: 87
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The mechanical seal manufacturer introduces the problems that should be noticed in use. 1. Precautions during installation. a. Pay great attention to avoid the installation deviation during installation. (1) Tighten the gland after the alignment of the coupling. The bolts should be evenly supported to prevent the end face of the gland from deflecting. Check each point with a feeler gauge, and the error should not be greater than 0.05 mm. (2) Check the fit clearance between the gland and the outer diameter of the shaft or shaft sleeve
Published on: June 18, 2019 Number of hits: 117
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Features of mechanical seal for kettle 1. The mixing shaft is relatively long, and there is a mixing paddle at the lower end, so the mechanical seal for pump has a large swing and oscillation contrast, which makes the dynamic ring and the static ring can not fit perfectly. Usually, the mixing shaft needs to be equipped with a bottom bearing or a central bearing. In order to reduce the influence of shaft swing and oscillation on the seal, add a bearing near the seal, and first consider that the dynamic ring and static ring have better floating performance. 2、
Published on: June 15, 2020 Clicks: 101
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The mechanical seal for kettle has higher sealing requirements. When the shaft needs to bear greater radial force, the mechanical seal with built-in bearing should be selected, but it is generally not used as the bearing point of the shaft. If it is necessary to use this as the supporting point, the improved mechanical seal with T after the model shall be selected. Replace the built-in bearing of the mechanical seal for kettle with two tapered roller bearings, which can replace the
Published on: June 11, 2019 Clicks: 156
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Service life and reliability of mechanical seals for kettles I Service life of mechanical seals Mechanical seals rarely fail due to long-term wear and tear, and other factors often promote premature failure of pump mechanical seals. Therefore, the life of the seal should be regarded as a statistical quantity of the kettle mechanical seal, and it is difficult to obtain an accurate value. For example, mechanical seals used in some sewage pumps, one
Published on: June 6, 2019 Clicks: 139
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Mechanical seal uses the principle that two planes rub against each other to achieve the purpose of sealing. The rotating sealing surface is installed on the main shaft of the liquid pump, while the fixed sealing surface is installed in the sealing gland. Since one sealing surface is moving while the other is stationary, this type of seal is called dynamic seal. Fig. 1 The seal between the rotating surface and the stationary surface is the decisive seal
Published on: June 3, 2019 Number of hits: 356
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1、 Overview of mechanical seal Mechanical seal (end face seal) is a device used to solve the sealing between rotating shaft and engine body. It is a device to prevent fluid leakage, which is composed of at least one pair of fluid pressures on the end faces perpendicular to the rotation axis, the elastic force (or magnetic force) of the compensation mechanism, and the cooperation of the auxiliary seal to keep fit and slide relatively. It is commonly used in pumps, compressors, reaction mixers
Published on: June 1, 2019 Number of hits: 120
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204 Basic structure and primary characteristics of mechanical seal Mechanical seal is a kind of equipment used to deal with the seal between rotating shaft and engine body. It consists of at least one pair of end faces perpendicular to the rotation axis, sticking and sliding together under the effect of fluid pressure and tissue elasticity (or magnetic force) compensation and the cooperation of auxiliary seals to avoid fluid leakage. It is commonly used in pumps, compressors, anti leakage devices
Published on: June 1, 2019 Clicks: 179
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How to prolong the service life of mechanical seal of centrifugal pump? Listen to what the mechanical seal manufacturer said! 1. The centrifugal pump shaft has a large displacement. During the operation of the centrifugal pump, the sealing surface of the mechanical seal needs to have a certain specific pressure. Only in this way can the role of the mechanical seal be ensured. Therefore, the spring of the mechanical seal must have a certain amount of compression
Published on: May 28, 2019 Number of hits: 129
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Tips for installation and use of mechanical seal for kettle 1. Apply a layer of clean lubricant on the surface in contact with the seal during installation to facilitate smooth assembly. Recommended lubricants: soapy water, silicone grease, ethylene glycol ester or glycerin, etc. 2. The sealing cavity of the equipment shall be kept clean during installation, and the sealing parts shall be
Published on: August 24, 2019 Clicks: 127
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Let the mechanical seal manufacturer tell you how to replace the mechanical seal! Mechanical seal transmits power and motion transmission by mechanical means. Mechanical transmission is widely used in mechanical engineering, including belt transmission, gear transmission, chain transmission, worm and worm gear transmission, gear rack transmission and spiral transmission. Gear transmission can be used for high-power
Published on: May 16, 2020 Number of hits: 232
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The mechanical seal manufacturer explained the selection of mechanical seals. According to the different working conditions and media properties, there are high temperature and low temperature resistant mechanical seals, high pressure and corrosion resistant mechanical seals, particle resistant media mechanical seals, and light hydrocarbon media mechanical seals that are easy to vaporize. Mechanical seals of different structures and materials should be selected according to different uses. Mechanical seals are widely used in various enterprises
Published on: 2019-05-18 Clicks: 138
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204 Normal operation and maintenance of mechanical seal 1. Preparations and precautions before startup a. Fully check whether the mechanical seal, accessory devices and pipeline installation are complete and meet the technical requirements. b. Static pressure test shall be carried out before starting the mechanical seal to check whether there is leakage of the mechanical seal. If there are many leaks, find out the causes and try to eliminate them. If it is still invalid, it should be disassembled
Published on: August 20, 2019 Number of hits: 208
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Common gasket performance of kettle mechanical seal I) When using the valve, the original gasket is often replaced according to the specific situation. Common gaskets include: rubber flat washer, rubber O-ring, plastic flat washer, PTFE wrapped washer, asbestos rubber washer, metal flat washer, metal profiled washer, metal sheath washer, corrugated washer, spiral wound washer, etc. (1) Rubber
Published on: March 14, 2020 Clicks: 139
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The mechanical seal manufacturer explains the basic knowledge. 1. The basic concept of mechanical seal: mechanical seal is a device to prevent fluid leakage, which is composed of at least one pair of end faces perpendicular to the rotation axis, under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism, and with the cooperation of the auxiliary seal. The auxiliary seal of compensation ring is called metal bellows
Published on: 2019-05-07 Clicks: 138
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204 Mechanical seal fault handling Mechanical seal and other equipment cause large noise and equipment vibration due to long time mechanical movement with large torque and gear box meshing clearance. In addition, the sealing part has been operating at high speed and high temperature for a long time, and oil leakage often occurs at the sealing part. The leakage of sealing parts is caused by the following reasons: 1. leakage due to oil seal quality problems; 2、
Published on: May 1, 2019 Number of hits: 166
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The mechanical seal manufacturer explained the seal failure. 1. The seal failure is mainly caused by the following three reasons: (1) When the sealing surface is opened and the mechanical seal is repaired, 85% of the seal failure is not caused by wear, but has leaked before wear. As soon as the sealing surface is opened, solid particles in the medium enter the sealing surface under the action of liquid pressure. After the sealing surface is closed, these solid particles are embedded
Published on: August 27, 2019 Clicks: 143
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The reason for the failure of mechanical seal for kettle is that the failure of mechanical seal is generally known after the occurrence of abnormal leakage, abnormal wear, abnormal torque and other phenomena. The reasons for the failure are as follows: 1. The design and selection of mechanical seal are incorrect; 2. Poor mechanical seal quality; 3. The accuracy of the machine using or installing mechanical seal cannot reach
Published on: April 26, 2019 Clicks: 126
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The mechanical seal manufacturer explains the maintenance problems and the preparations before starting 1. Fully check the mechanical seal, and whether the installation of auxiliary devices and pipelines is complete and meet the technical requirements. 2. Static pressure test shall be carried out before starting the mechanical seal to check whether there is leakage of the mechanical seal. If there are many leaks, find out the causes and try to eliminate them. If it is still invalid, it shall be disassembled, checked and reinstalled. one
Published on: January 17, 2020 Number of hits: 156
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Precautions for kettle mechanical seal during installation 1. Pay great attention to avoid installation deviation during installation (1). Tighten the gland after alignment of the coupling. The bolts should be evenly supported to prevent the end face of the gland from deflection. Check each point with a feeler gauge, and the error should not be greater than 0.05 mm. (2) Check the fit clearance (i.e. concentricity) between the gland and the outer diameter of the shaft or shaft sleeve
Published on: April 20, 2019 Clicks: 160
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204 Technical requirements of mechanical seal The seal ring is the general name of dynamic ring and static ring (the same below), and is the main component of mechanical seal. To a great extent, seal ring determines the service performance and life of mechanical seal, so some requirements are put forward for it. There shall be enough strength and rigidity to avoid damage under working conditions (such as pressure, temperature and sliding speed), and the deformation shall be as small as possible
Published on: September 26, 2020 Clicks: 114
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204 What are the types of mechanical seals introduced by mechanical seal manufacturers? 1. Push type mechanical seal and non push type mechanical seal Push type mechanical seal refers to the mechanical seal that the auxiliary seal is pushed mechanically along the shaft or shaft sleeve to compensate for the wear of the sealing surface, which is usually referred to as spring pressed mechanical seal. Non push type mechanical seal is used for mechanical seal with auxiliary seal fixed on shaft, usually
Published on: April 13, 2019 Clicks: 334
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How to replace the mechanical seal of horizontal grinder? Listen to what the mechanical seal manufacturer said! 1. Remove the cylinder; 2. Remove the distributor assembly and the screen. 3. Clean the shaft with solvent, and remove the front cover and discharge cover of the cylinder. 4. Remove the two elastic rubber hoses and remove the discharge tray. 5. Remove the sealing ring,
Published on: July 20, 2019 Number of hits: 260
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204 Service Life and Reliability of Mechanical Seals I Service Life of Mechanical Seals Mechanical seals rarely fail due to long-term wear and tear, and other factors often promote premature failure of pump mechanical seals. Therefore, the life of the seal should be regarded as a statistical quantity of the kettle mechanical seal, and it is difficult to obtain an accurate value. For example, mechanical seals used in some sewage pumps,
Published on: July 16, 2019 Number of hits: 166
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The mechanical seal manufacturer explained the effect, meaning and position of mechanical seal. The effect of mechanical seal: 1. Improve machine power and reduce energy consumption. 1. Reduce the internal leakage, external leakage and penetration of the machine, and improve the volumetric power of the machine. 2. Reduce conflict loss and improve mechanical power of mechanical seals of machines. For example, double face seal is changed to single face seal, unbalanced seal is changed to balanced seal
Published on: April 2, 2019 Number of hits: 116
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Replacement steps of mechanical seal for kettle Mechanical seal is very important for chemical pump, hot water pipeline pump and oil pump. The installation of mechanical seal can make the pump run without leakage, greatly improving the working environment of pump management personnel and extending the service life of the pump. The following is a detailed explanation of the installation steps of the mechanical seal: (1) Prepare the work for placing pump parts
Published on: February 4, 2020 Number of hits: 298
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204 Introduction of mechanical seal manufacturer Installation and maintenance of pump mechanical seal 1 Installation of pump mechanical seal 1.1 Installation preparation of pump mechanical seal Ensure that the installation chamber is clean and free of any foreign matter. The shaft or sleeve matched with the mechanical seal shall have correct size, smooth surface, good mechanical seal for linear pump, and no burr, sharp corner, nick or excessive
Published on: October 17, 2020 Clicks: 148
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Several mistakes should be noticed when the kettle mechanical seal manufacturer overhauls! 1. The greater the spring compression, the better the sealing effect. In fact, the spring compression is too large, which can lead to rapid wear and instant burning of the friction pair; Excessive compression makes the spring lose the ability to adjust the end face of the moving ring, leading to seal failure. 2. The tighter the dynamic ring seal diagram, the better. The driving ring seal ring is too tight
Published on: March 23, 2019 Number of hits: 188
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How does mechanical seal play a sealing role? 1. Push type mechanical seal and non push type mechanical seal Push type mechanical seal refers to the mechanical seal that the auxiliary seal is pushed mechanically along the shaft or shaft sleeve to compensate for the wear of the sealing surface, which is usually referred to as spring pressed mechanical seal. Non push type mechanical seal is used to fix auxiliary seal on shaft
Published on: March 20, 2019 Clicks: 194
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The mechanical seal manufacturer introduced what is the container mechanical seal. First, the concept of "container" in transportation was used to produce the container type seal. The rotating and stationary parts of this seal are pre assembled as a whole before installation. After passing the inspection and pressure test, they are sleeved on the shaft in the shaft seal box, fixed on the shaft with set screws, tightened the gland bolts, and removed the container positioning piece, so that the mechanical seal can be in parallel
Published on: March 16, 2019 Number of hits: 163
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Reaction kettle is one of the key equipment in chemical, chemical fiber, petrochemical, pharmaceutical and other production processes. Compared with pumps and other rotating machinery, it has unique use conditions and operating characteristics. Therefore, although the mechanism of kettle mechanical seal is the same as that of pump mechanical seal, kettle machinery has its own system due to its particularity. Reaction kettle generally consists of kettle body, agitator, transmission mechanism and shaft seal
Published on: March 12, 2019 Number of hits: 278
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1、 CDMSC ™— The integral design of the canned double end integral static ring compensated convection seal ring improves the stability of the seal ring under high temperature and pressure conditions, prolongs the service life of the seal under such conditions. The driving contact area of the seal ring is large, preventing damage to the seal ring when the equipment starts or stops under viscous liquid conditions. The internal clearance is large, maximizing the density
Published on: March 7, 2019 Number of hits: 184
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The face morphology of mechanical seal has a significant impact on the seal performance and life. The main characteristics of the surface morphology of the actual seal ring are that the local part has randomness, while the overall part has statistical laws, which are generally characterized by rental accuracy and correlation length. To solve this problem, this paper simulates the face topography of mechanical seals based on the stochastic process and time series theory
Published on: March 7, 2019 Number of hits: 682
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The mechanical seal of mechanical equipment accounts for 80% - 85% of the total number of dynamic seals in pump equipment. Among the pump failures, mechanical seal failures account for about half of the total maintenance workload. It can be seen that the position of mechanical seal in pump maintenance. Because the medium conveyed by the pump is very different and the process conditions are different, the selection and maintenance of mechanical seal by understanding these conditions
Published on: March 2, 2019 Clicks: 572
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Taking the oil refining industry as an example, at present, domestic and foreign high-temperature hot oil pumps generally use contact bellows single end mechanical seals. The average service life of domestic bellows mechanical seals is about one year, and that of imported bellows mechanical seals can be more than two years. However, various flushing and cooling measures must be taken on the base wood (Figure 9-1) to reduce friction temperature rise and prevent coking, heat cracking Bellows lose elasticity
Published on: March 2, 2019 Number of hits: 540
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Cautions for installation of kettle mechanical seal Mechanical seal definition Mechanical seal is a device used to solve the sealing between rotating shaft and engine body. The device is composed of at least one pair of end faces perpendicular to the rotating shaft, which are kept stuck and relatively sliding under the cooperation of fluid pressure, elastic force (or magnetic force) of compensation mechanism and auxiliary seal to prevent fluid leakage. Structure description
Published on: March 2, 2019 Number of hits: 454
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204 The mechanical seal manufacturer analyzed the causes of the penetration. 1) Leakage caused by pressure. 1. Fault 1: Mechanical seal leakage caused by high pressure and pressure wave. Cause: The specific pressure of the spring and the total specific pressure are too large. When the pressure in the seal cavity exceeds 3MPa, the specific pressure of the seal face will be too large, the liquid film will be difficult to form, the seal face will be severely worn, and the heat generation will increase,
Published on: March 2, 2019 Number of hits: 150
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The requirements for mechanical seals for kettles are generally divided into two parts: liquid seal (this issue focuses on analysis) and gas seal (that is, dry gas seal, which will be summarized later and pushed to everyone). Liquid seal is a mechanical seal designed for sealing liquid. In fact, the liquid film between seal faces is very small - equivalent to 20 parts per million
Published on: March 1, 2019 Number of hits: 179
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When the mechanical seal manufacturer introduces the ideal sealing machine, it is necessary to understand the leakage first. Once the leakage principle is understood, the corresponding sealing mechanism will be formed. There are three kinds of leakage. One is through leakage, that is, leakage between the sealing surface gaps. The other is leakage, that is, leakage of the sealed fluid through the capillary tube of the seal material. The third is diffusion, that is, under the effect of concentration difference
Published on: September 26, 2020 Clicks: 172
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204 The mechanical seal manufacturer introduces basic knowledge 1. The basic concept of mechanical seal: mechanical seal is a device to prevent fluid leakage, which is composed of at least one pair of end faces perpendicular to the rotation axis, under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism, and with the cooperation of auxiliary seals, to keep fit and relatively slide. The auxiliary seal of compensation ring is metal bellows
Published on: February 19, 2019 Clicks: 223
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Technical requirements for the use of mechanical seal for kettle The seal ring is the general name of dynamic ring and static ring (the same below), and is the main component of mechanical seal. To a great extent, seal ring determines the service performance and life of mechanical seal, so some requirements are put forward for it. There is enough strength and stiffness to prevent damage under working conditions (such as pressure, temperature and sliding speed), and deformation should be as far as possible
Published on: February 16, 2019 Clicks: 164
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The mechanical seal manufacturer's summary of the principle of mechanical seal Mechanical seal is a shaft seal device that can prevent leakage by means of a pair of cartridge mechanical seals or several pairs of opposite sliding end faces perpendicular to the shaft under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and is equipped with auxiliary seals. Common mechanical seal structure consists of stationary ring (stationary ring), rotating ring (moving ring) and elastic element spring
Published on: September 1, 2019 Number of hits: 271
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204 Mechanical seal manufacturer: Introduction to several cooling methods of mechanical seal! Flushing cooling: when the sealing medium temperature is high, the mechanical seal is usually purchased for flushing cooling. The inlet of flushing fluid is aligned with the friction surface. The purpose of flushing is to keep the temperature of the friction surface within a certain range and prevent the accumulation of impurities near the seal face. This is a common
Published on: October 30, 2018 Number of hits: 244
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204 The mechanical seal manufacturer teaches you how to prevent the leakage of the liquid pump! What should we do if the mechanical seal fluid pump leaks? Don't panic. The mechanical seal manufacturer will tell you how to solve the leakage. Let's start with the basic elements of the seal: the basic element of the seal, the mechanical seal, uses the principle of two planes running against each other to achieve the purpose of sealing. The rotary sealing surface is installed on the main part of the liquid pump
Published on: October 28, 2018 Number of hits: 290
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204 What are the maintenance methods and precautions of mechanical seal manufacturers? Because the application environment of mechanical seal is very messy, and the seal structure is more complicated, the sealing degree of mechanical seal is very simple to be damaged, so it is very important to repair the mechanical seal. 1、 Precautions for disassembly of mechanical seal 1. Installation sequence of mechanical seal and disassembly of pump mechanical seal
Published on: November 2, 2018 Clicks: 134
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204 The mechanical seal manufacturer tells you the inspection process of mechanical seal! Mechanical seal maintenance procedures To master mechanical seal maintenance and repair, first know the working principle of mechanical seal. The mechanical seal is a sealing device composed of two sealing elements (static ring and dynamic ring) perpendicular to the shaft, smooth and straight surfaces that stick together and rotate relative to each other. It depends on
Published on: July 12, 2019 Number of hits: 494
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204 Mechanical seal manufacturers teach you the washing skills of seals! Features of mechanical seal flushing technology The purpose of mechanical seal flushing is to prevent the accumulation of impurities, prevent the formation of air bags, maintain and improve lubrication, etc. When the flushing fluid temperature is low, it also has a cooling effect. Now Hengda Mechanical Seal will explain the technical features of mechanical seal flushing. 1. Internal scour and forward scour
Published on: November 10, 2018 Clicks: 107
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204 How to remove the mechanical seal for maintenance After removing the mechanical seal, first check the pump body where the organic seal is installed, and the following requirements must be met: 1. The maximum shaft bending is ≤ 0.05mm, and the axial displacement is ≤ 0.05mm. 2. The runout at the sealing ring of the moving ring is ≤ 0.01mm. 3. The surface roughness of the shaft or shaft sleeve at the installation part of the mechanical seal is 1.6 μ m. And stationary ring
Published on: November 12, 2018 Clicks: 131
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204 What are the corrosive causes of the leakage? The mechanical seal will leak, and there are many reasons for this phenomenon, including the corrosiveness of the filling medium to the device. To solve this problem, you must solve the problem from the process, equipment, maintenance and operation, and only after these faults are eliminated
Published on: November 11, 2018 Number of hits: 167
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Correct installation steps of kettle mechanical seal 1. Check whether the model and specification of the mechanical seal to be installed are correct. 2. Check whether the dimensional accuracy, geometric accuracy and interrelation of the parts related to the installation of the main engine and mechanical seal meet the technical requirements. It mainly includes the following aspects: (1) The radial runout tolerance of the shaft (or shaft sleeve) where the mechanical seal is installed（
Published on: November 12, 2018 Clicks: 1534
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What are the advantages of kettle mechanical seal products? With the rapid development of science and technology, the performance of the kettle mechanical seal is constantly updated and widely used, and there are many manufacturers of products. How to choose a suitable manufacturer is a science. In terms of price, on the one hand, knowledge should also be comprehensively considered from other aspects, such as whether the manufacturer is standardized and whether after-sales service is
Published on: October 30, 2018 Clicks: 218
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This paper introduces the form of mechanical seal for kettle and how to deal with the problem correctly in case of failure. The kettle mechanical seals are divided into the following six types: 201 type single end face single spring unbalanced seal, 202 type single end face multi spring unbalanced seal, 203 type single end face single spring balanced seal, 204 type single end face multi spring balanced seal, 205 type double end face
Published on: November 4, 2018 Clicks: 162
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Key points for overall inspection and installation of mechanical seal for kettle: 1. Check whether the model and specification of the mechanical seal to be installed are correct. 2. Check whether the dimensional accuracy, geometric accuracy and interrelation of the parts related to the installation of the main engine and mechanical seal meet the technical requirements. It mainly includes the following aspects: (1) The radial runout of the shaft (or shaft sleeve) where the mechanical seal is installed
Published on: November 6, 2018 Number of hits: 338
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The sealing equipment of the reaction kettle The sealing equipment used in the reaction kettle is a dynamic sealing structure, which mainly includes two types: packing seal and mechanical seal. The mechanical seal for kettle is compared with the stuffing box seal. The seal is firm, and the mechanical seal will not leak or rarely leak during a long service period. Clean, no dead corner, can avoid contamination of miscellaneous bacteria.
Published on: November 11, 2018 Number of hits: 451
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What are the characteristics of mechanical seal for kettle? What are the causes of wear? The mechanical seal is a device that is formed by at least one pair perpendicular to the end face of the rotating axis, by the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism, and by the cooperation of the auxiliary seal, so as to keep the relative sliding when sticking together and prevent the fluid from being exposed. The auxiliary seal of the compensating ring of the mechanical seal is
Published on: October 29, 2018 Clicks: 224
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204 What is the relationship between mechanical seal and evacuation? According to the statistics of China's petrochemical industry, more than 80% of centrifugal pumps use mechanical seals. Due to the different working conditions of the mechanical seals of centrifugal pumps, material leakage often occurs in the process of conveying materials, polluting the environment and wasting energy. Mechanical seal is one of the main wearing parts of centrifugal pump, and pump failure
Published on: November 29, 2018 Clicks: 391
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What are the structural characteristics of the mechanical seal for kettle? In terms of sealing principle, the machinery used for kettle and discharge chute is the same as that used for pump, but the mechanical seals used for pump have the same operating conditions and operating technology. Therefore, the requirements for seal structure design and sealing system are different from those used for pump, and have their own characteristics: 1. Radial vibration and axial displacement of mixing shaft
Published on: November 11, 2018 Clicks: 314
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204 What are some mistakes that should be paid attention to during the maintenance of mechanical seals? 1. The greater the spring compression, the better the sealing effect. In fact, the spring compression is too large, which can lead to rapid wear and instant burning of the friction pair; Excessive compression makes the spring lose the ability to adjust the end face of the moving ring, leading to seal failure. 2. The tighter the dynamic ring seal diagram, the better. The driving ring seal ring is too tight
Published on: November 21, 2018 Clicks: 155
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204 How can the mechanical seal manufacturer tell you to play a sealing role? 1. Push type mechanical seal and non push type mechanical seal Push type mechanical seal refers to the mechanical seal that the auxiliary seal is pushed mechanically along the shaft or shaft sleeve to compensate for the wear of the sealing surface, which is usually referred to as spring pressed mechanical seal. Non push type mechanical seal is used for auxiliary sealing
Published on: November 28, 2018 Number of hits: 159
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What are the key points of using mechanical seals for kettles? In the pump parts, mechanical seal is a very important part, and mechanical seal is also a vulnerable part. If the mechanical seal is damaged, the pump body will leak. If a direct coupled pump is used, the motor will be damaged once the medium in the pump body penetrates into the motor. Therefore, the quality of mechanical seals is crucial. want
Published on: November 23, 2018 Clicks: 151
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1. Preface: Kettle machinery is an important system equipment for industrial production. If leakage occurs in the production and application phase, it will have a negative impact on product quality, and will also emit toxic, explosive and flammable dangerous gases, posing a significant hazard to the ecological environment and the plant system itself. If the kettle machinery is overhauled for many times, the materials need to be transferred out and necessary
Published on: November 26, 2018 Number of hits: 150
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What should the mechanical seal manufacturer pay attention to before and after installation? Mechanical seal is a kind of mechanical equipment component requiring high precision. The service performance and service life of Tianjin mechanical seal are greatly related to the operating conditions, precision and seal installation of the host machine. Therefore, it is necessary to follow the requirements before, during and after the installation of mechanical seal, otherwise it is easy to affect
Published on: November 11, 2018 Clicks: 118
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How to repair the mechanical seal used by the mechanical seal manufacturer? The maintenance mechanical seal of mechanical seal is a sealing equipment composed of two sealing elements (static ring and dynamic ring) perpendicular to the shaft, bright, and the flat and straight appearance of light mechanical seal for pump, which fit each other and roll relatively. It depends on the pressure of the sealing medium to produce proper results on the touch surface (end face) of the rotating rotating ring and stationary ring
Published on: November 12, 2018 Clicks: 470
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The mechanical seal manufacturer tells you the precise selection and application of mechanical seals for solid-liquid two-phase flow pumps? Due to the existence of abrasive particle media in solid-liquid two-phase flow, the selection of general mechanical seals often poses the following five hazards: ① Increased wear of seal face. Between sealing surfaces, separated mechanical sealing particles used by the pump leaked into the end face, which played an abrasive role and accelerated the wear of the sealing surface. ② Intermediate
Published on: October 28, 2018 Clicks: 211
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Use of mechanical seal for kettle 1. Before normal use, operate under normal pressure, and observe whether the temperature rise of the sealing part is normal and whether there is leakage. If there is slight leakage, run in for a period of time to make the end face fit more evenly until the leakage gradually reduces to normal. If the leakage does not decrease after 1-3 hours of operation, stop the machine for inspection. 2. Main
Published on: November 28, 2018 Clicks: 177
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Requirements for installation and use of mechanical seal manufacturer 1) The mechanical seal with suitable model and material for light mechanical seal used for pump must be selected according to working conditions and host conditions to ensure normal operation and service life of mechanical seal. 2) The radial runout tolerance of the medium-sized mechanical seal for the pump with the shaft (sleeve) installed at the mechanical seal shall be ≤ 0.04mm, and the axial runout of the rotor shall be ≤ 0.1
Published on: November 4, 2018 Clicks: 112
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Types of new mechanical seal technologies of mechanical seal manufacturers The new technologies of various mechanical seals using new materials and processes are developing rapidly, including the following new mechanical seal technologies. In recent years, the grooved seal technology on the sealing face of the mechanical seal has opened a variety of grooves to produce hydrostatic and dynamic pressure effects, which is still being updated. Zero leakage sealing technology
Published on: November 25, 2018 Clicks: 502
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The mechanical seal manufacturer tells you the corrosion type and protection method of the mechanical seal. The mechanical seal is often damaged. The common damage forms are mainly corrosion damage, thermal damage and mechanical damage. The corrosion damage of mechanical seal knowledge is more harmful. Due to the special structure of mechanical seal and different working environment and conditions, the forms of corrosion damage are also diverse.
Published on: November 13, 2018 Clicks: 160
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What are the requirements of gear oil pump for mechanical seal? Mechanical seal, also known as mechanical seal, is a dynamic seal for rotating shaft. Mechanical seal has reliable performance, small leakage, long service life and low power consumption. It does not need frequent maintenance, and can adapt to production process automation and high temperature, low temperature, high pressure, vacuum,
Published on: November 29, 2018 Clicks: 489
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Common sense for mechanical seal manufacturers to choose various seals - the density of epoxy modified single component product 1 varies from 1.1 to 2.8, and the curing time is 50 degrees/4 hours or 110 degrees/30 minutes or 110 degrees/50 minutes; 2. It has moderate thixotropy, can cover and wrap electronic components when draped on the circuit board, and the glue can level itself,
Published on: November 10, 2018 Number of hits: 445
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Introduction to the use of mechanical seal equipment by mechanical seal manufacturers Mechanical seal equipment is a kind of oil seal equipment for rotating machinery. It has high requirements on the quality of the equipment used in the mutual cooperation of separate mechanical seals for other phase pumps. It is the function of fluid pressure and compensation arrangement elasticity (or magnetic force) of one or more pairs of mechanical seal faces perpendicular to the rotating axis, as well as the cooperation of auxiliary seals
Published on: October 1, 2018 Clicks: 2323
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How should the joint mechanical seal manufacturer of synthetic polymer sealing material construct well? Before the joint construction of synthetic polymer sealing material, the adhesive body shall be inspected, the materials and tools shall be prepared, the construction temperature shall be selected, and the joint shall be treated. The coating of base course treatment agent should first be accurately proportioned and evenly mixed. When multi-component mechanical sealing base course treatment agent is used
Published on: September 27, 2018 Clicks: 221
