Replace gaskets for plate heat exchangers

30-12-2020

The gasket is one of the key components of the plate heat exchanger. It mainly serves as a seal between the heat exchange plates. It not only seals the medium so that it does not leak to the external environment, but also prevents the heat exchange medium from leaking. Intermixing between. The application range of the plate heat exchanger is also largely limited by the sealing gasket. If these gaskets are converted and lose their due elasticity, the heat exchanger may not operate normally.

As the application field of plate heat exchangers continues to expand, different media and processes have different requirements for temperature resistance, pressure resistance and corrosion resistance. It is obviously impossible to use a "universal" heat exchanger gasket to adapt to all situations. Instead, heat exchanger gaskets of different materials should be used for different situations. If the heat exchanger gasket of the plate heat exchanger is in use, it should be replaced in time if it leaks, breaks, or ages.

Today we will take a look at replacing gaskets for plate heat exchangers.

1. Remove the waste heat exchanger gasket. Be careful not to make scratches in the gasket groove when disassembling.

2. Clean the aging heat exchanger gasket. According to different dirt, use acid and alkali for chemical cleaning, so that the surface of the cleaned parts will not be corroded by chemical media.

3. After chemical cleaning, use a high-pressure blowing device to clean the remaining chemical media on the surface of the detachable plate heat exchanger, etc.

4. Paste the clean new heat exchanger gasket on the plate. The heat exchanger plate with the heat exchanger gasket should be placed in a flat, cool and ventilated place before it can be installed and used

5. For the adhesive heat exchanger gasket, clean the remaining materials and re-bond them with a blended adhesive. The reassembled detachable plate heat exchanger sheet set is clamped in the fixture to make the bond Curing agent, heat and keep warm in the holding furnace to achieve a good bonding effect

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