The cause of plate heat exchanger gaskets damage
The plate heat exchanger is a very efficient heat exchange device, and its application range is very wide. Usually it is mainly composed of plates and gaskets. The sealing failure of the plate heat exchanger is a big problem. What is the cause of the failure of the seal of the plate heat exchanger?
1. Pressure effect: It can produce the leakage when the plate heat exchanger is used in the rated working pressure. In addition to the influence of the difference in the quality of the manufacturing assembly, it also generally affects the abnormal impact load in the system. , this is also the situation that ordinary operators do not easily see. The instantaneous pressure peak caused by the impact is often about 2 times higher than the normal working pressure.which is makes the rubber displace from groove in the plate heat exchanger.
2.Time impact: The equipment used or idle for several years, the gradual aging of the sealing material itself will seriously affect the reliability of the seal, so it is necessary to replace it with a new gasket in time for inspection.
3.Temperature effect: rapid changes in temperature can also lead to seal failure. When the temperature changes rapidly, the pre-tightening force of the plate heat exchanger seal is significantly reduced, so that the bearing pressure of the device is higher than the rated design pressure.