First, the reason for the leakage of the plate heat exchanger
1. The plate is deformed, and the assembly is misplaced to cause the running pad;
2. There is a crack in the sealing groove portion or the two sealing regions of the plate;
3. The clamping dimensions are not in place, the dimensions are not uniform (the deviation of the dimensions should not exceed 3 mm) or the clamping bolts are loose;
4. Part of the gasket is out of the sealing groove, the main sealing surface of the gasket is dirty, the gasket is damaged or the gasket is aging.
Second, the treatment method of the outer leakage of the plate heat exchanger
1. When reassembling the disassembled plate, clean the plate surface to prevent dirt from adhering to the gasket sealing surface.
2. Mark the outer leakage part, then disassemble the heat exchanger one by one, reassemble or replace the gasket and the plate.
3. In the no-pressure state, re-clamp the equipment according to the clamping dimensions provided by the manufacturer, the dimensions should be uniform and uniform, and the deviation of the compaction size should be no more than ±0.2N (mm) (N. is the total number of plates), two pressure The parallelism between the plates should be kept within 2 mm.
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Label: Reasons for leakage of plate heat exchanger
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