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10
2022
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10
Large size seal: mechanical seal structure
Large-size seal manufacturers said that this article mainly through the introduction of the principle of mechanical seal structure and the analysis of the causes of mechanical seal failure and leakage, summed up the correct installation and use of mechanical seals to extend its service life experience and methods.
Author:
Large size sealThe manufacturer stated that this article mainly summarizes the experience and methods of correctly installing and using mechanical seals to extend their service life through the introduction of the principle of mechanical seal structure and the analysis of the causes of mechanical seal failure and leakage.
Large size seal manufacturers said,Mechanical seal (mechanical seal) is composed of at least a pair of end faces perpendicular to the axis of rotation in fluid pressure and the elastic force of the compensation mechanism (or magnetic force) and the cooperation of the auxiliary seal to keep fit and slide relative to prevent fluid leakage.
Mechanical seal structure: mainly composed of static ring (static ring)
1. Rotating ring (moving ring)
2. Elastic element
3. Spring seat
4. Set screw
5. Rotating ring auxiliary sealing ring
6. Static ring auxiliary sealing ring
The anti-rotation pin 7 is fixed on the gland 9 to prevent the stationary ring from rotating.
Mechanical seals have the advantages of reliable sealing performance, small leakage, long service life, low power loss and wide application range. They are widely used in various technical fields, especially for high speed, high pressure differential working conditions and expensive or toxic and strong Corrosive process media. At the same time, the mechanical seal is one of the weakest links of the equipment.
In order to prolong its service life, in addition to selecting the appropriate friction pair material and the appropriate end surface specific pressure, the correct installation and maintenance can also play an important role.
Through the practice of daily maintenance, this paper analyzes the main causes of mechanical seal failure and leakage, and summarizes the method of how to extend the service life of mechanical seal.
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