-
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 Clicks: 131
-
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: 122
-
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: 232
-
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
-
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
-
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
-
Technical conditions of kettle mechanical seal Only the kettle mechanical seal that meets the technical conditions is qualified. However, due to 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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
231 in total
15 entries per page
Page: 10/16
