Reasons for leakage of plate heat exchanger

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.

Plate heat exchanger is a kind of equipment for heat transfer, widely used in different fields of industrial production and life. Due to its structural characteristics, plate heat exchanger units require regular maintenance and maintenance, and sometimes some parts need to be replaced to ensure their normal operation and efficient work.

First of all, the core part of the plate heat exchanger unit is the plate, which is the key equipment to achieve heat transmission detail, due to the long-term use and the influence of various external factors, the performance and effect of the plate heat exchanger plates will gradually decline. In some cases, the plate will suffer from wear, corrosion, leakage and other problems, affecting its normal operation and heat transfer effect. Therefore, regular plate replacement is an important part of maintaining plate heat exchanger units.

Since its establishment in 2004, Baode has been a professional manufacturer of plate heat exchangers. Our main products are brazed plate heat exchanger, shell and tube heat exchanger, gasket plate heat exchanger, etc.