1. When the plate heat exchanger is stopped in winter, the medium inside the equipment shall be discharged to prevent freezing of the equipment. Other anti-freezing measures may also be adopted.
2, the aging gasket should be replaced. When the plate and the sealing gasket fall off, the adhesive in the plate sealing groove shall be washed with thinner. After cleaning, the adhesive shall be coated in the sealing groove with suitable adhesive, and the adhesive shall be firmly bonded again.
5. After long-term operation of the plate heat exchanger, scale or deposit will be produced on the surface of the plate to varying degrees, which will reduce the heat transfer efficiency and increase the flow resistance. Therefore, the equipment shall be periodically disassembled to check and remove dirt according to the actual conditions such as water quality and temperature medium characteristics. Use sodium carbonate solution and brown brush to clean the plate. Do not use metal brushes to avoid scratching the surface of the plate and reducing corrosion resistance. For a small amount of sediment deposition in the channel or debris deposition in the medium, it can also be used for a short reverse operation in the opposite direction to flush out part of the sediment, which also has good effect.
