Analysis of different leaks of centrifugal pumps

Time:2023.02.01Browse:

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What should we do if there is a leakage of the centrifugal pump?

1. If the leakage of leaks is small during installation, there are problems with the dynamic ring or static ring sealing ring: when the amount of leakage is large, there are problems with the motion and static ring friction. On the basis of preliminary observation of leakage and judging the leakage site, the manual disk is observed. If there is no obvious change in the leakage, there is a problem with the static ring sealing ring: there is a problem with the sub -ring friction of the static ring; The static ring sealing ring fails. In addition, the leakage channel can also exist at the same time.

2. The leakage centrifugal pump when the trial transportation is tested with mechanical sealing by the mechanical seal, and the centrifugal force generated by high -speed rotation at high speed during operation will inhibit the leakage of the medium. Therefore, excluding the seal between the shaft and end cover is basically due to the damage of the motion and static ring friction. Most need to re -disassemble and replace sealing.


3. During normal operation, the sudden leakage of the sudden leakage of the emergence pump is caused by large changes in the working conditions or operations and improper maintenance. Pumping, air erosion, or pressure for a long time cause seal damage; the actual output volume of the pump is small, a large amount of medium pump circulation, the heat accumulation. Causes the medium gasification and causes the seal to fail; for a long time suspension, there is no manual tray when the start of the restart, and the friction side is tightly covered with a dense cover due to adhesion; the corrosiveness, aggregation, and collagen in the medium; the environmental temperature Dynamic changes, etc.


The above -mentioned leaks should be selected according to the problem. The corresponding solutions should be selected. You can't just repair and small supplements, barely use the centrifugal pump for a while, and the overhaul will be performed after major problems occur.


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