First, plate heat exchanger leakage reason analysis Gasket aging: plate heat exchanger gasket is usually made of rubber, asbestos rubber, polyethylene and other materials, in high temperature, high pressure and other working conditions for a long time, the gasket material will be aging, hardening, cracking and other phenomena, resulting in leakage.
Plate deformation: During the operation of the plate heat exchanger, due to thermal stress, vibration, pressure and other factors, the plate may be deformed, resulting in a reduction in the sealing performance between the plates, which in turn leads to leakage.
Dirt deposition: the fluid inside the plate heat exchanger may contain impurities, which will be deposited inside the heat exchanger, forming dirt. The accumulation of dirt will reduce the heat transfer efficiency of the heat exchanger, but also affect the sealing performance of the gasket and plate, resulting in leakage.
Improper operation: in the plate heat exchanger installation, dismantling, maintenance and other processes, if the operation is not appropriate, it may lead to gasket damage, plate deformation and other problems, which will lead to leakage.
Second, the plate heat exchanger leakage treatment method Replacement of gaskets: for gasket aging caused by leakage, the most direct and effective method is to replace the gasket. In the replacement of gaskets, attention should be paid to the selection and heat exchanger internal fluid compatibility, high temperature and high pressure resistant gasket material.
Replacement plate: for plate deformation caused by leakage, should check the degree of plate deformation, if the deformation is serious, need to replace the plate in a timely manner. When replacing the plate, attention should be paid to the selection of heat exchanger design requirements, reliable quality plate materials.
Cleaning of dirt: For the leakage caused by dirt deposition, the plate heat exchanger should be cleaned regularly. Cleaning methods include chemical cleaning, mechanical cleaning, etc., the specific method should be selected according to the nature and degree of dirt.
Strengthen operational management: for improper operation of the leakage, should strengthen the heat exchanger installation, dismantling, maintenance and other processes of operational management, to ensure that the operation is standardised and safe.
In short, the plate heat exchanger leakage for a variety of reasons, for different reasons, should take the appropriate treatment method. In the daily use of the process, should strengthen the maintenance and management of the heat exchanger to ensure its safe, stable and efficient operation.
