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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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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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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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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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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: 139
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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: 167
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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 Number of hits: 128
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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 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 Number of hits: 335
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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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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, removed the container positioning piece, and the mechanical seal can be in parallel
Published on: March 16, 2019 Clicks: 164
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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
233 in total
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