The causes and treatment of plate heat exchanger leakage

The reason, the leakage of the heat exchanger
1 plate deformation, assembly dislocation caused by running pad;
2 there are cracks in the plate seal groove or the two seal area;
3 clamping size is not in place, the size of the uneven size (around the size of the deviation should not be greater than 3 mm) or clamping bolt loose;
The 4 part from the seal gasket sealing groove, the main sealing surface dirt, seal gasket is damaged or aging.
Two, processing method of plate heat exchanger leakage
In 1 when re assembled apart, clean surface, prevent dirt adhesion to the gasket sealing surface.
2 do a good job in the outer parts of the leak mark, and then the disintegration of the heat exchanger one by one to solve the investigation, re assembly or replacement of gaskets and plates.
3 in the non pressure state, according to the size of the clamping device, the size should be uniform, the size of the compression should not be greater than ± 0.2N (mm) (N). For the total number of plates, the parallelism of the two pressing plate should be kept within 2 mm