Plate heat exchanger is a kind of equipment requiring high safety. When the gasket is damaged, the external drip is obvious. There will be slight dripping at the beginning of the heat exchanger. In the process equipment with large pressure impact, large leakage may occur due to the damage of the gasket. Its service life has an important influence on the service life of the plate heat exchanger. If the seal is thermally hardened and loses its original elasticity, the heat exchanger may not work properly.
The joint surface of the plate heat exchanger should be cleaned with chemical detergent. Similarly, chemical cleaners must also be used to remove the softener and anti-adhesion coatings that adhere to the gasket. Apply the adhesive to the middle of each bonding joint surface, depending on the width of the gasket, the width of the adhesive is about the width of a match, and then use a brush to spread the adhesive evenly on the entire bonding surface, so that Make full use of the entire joint surface. Depending on the type of adhesive, wait for a certain amount of time for ventilation and drying, then put in a gasket, stack the plate heat exchangers together, tighten them with tensioning screws, or use heavy objects to place them on the stack. On the heater group. Depending on the type of adhesive, the curing time is about 8-20 hours. For blended adhesives, screw tightening and heating in the furnace must be performed.
The softening of the elastic gasket is related to pressure and temperature. When the gasket loses its elasticity, the heat exchanger will leak. In some products, in order to solve the dripping phenomenon caused by the aging of the gasket, it is possible to adjust the sealing performance of the heat exchanger, that is, tighten the bolts of the combined plate heat exchanger again. Adjust the pressing force of the elastic gasket between each heat exchanger to solve the problem of the title of dripping. The maximum and minimum allowable stresses are generally given on the nameplate of heat exchangers with this function. For the new heat exchanger chip group, the minimum allowable stress should be used for connection and fixing. Depending on the number of heat exchanger plates in each group, the tightening force of the heat exchanger can be adjusted one or more times. Each time you tighten, you can screw the nut in 3mm, and always pay attention to the stress of the adjusting plate during the tightening process. Moreover, only the heat exchanger without working pressure is allowed to adjust the tightening force at room temperature to prevent dripping.

Calvin (Ms)
Jiangyin M&C Heat Parts Co.,Ltd
Tel: 0510-86310522/20 Fax: 0510-86310566
Mob/Whatsapp: 86-180-6838-5022
Email: calvin.s@mcheatps.com
Website: www.mcheatps.com/ www.mcplateheatexchanger.com
Add: No.158, Huanan East Road, Changjing Town, Jiangyin City, Jiangsu Province, China