Corrosion of Plate heat exchanger
Some plate heat exchangers cannot be disassembled. For example, they can now be disassembled to clean them one by one. They can only be cleaned by turning on the valves and plugs on the inlet and outlet pipes. Blockage and fouling. Once one of the internal channels is blocked, the other channels have to receive the flow of all the water from the unit. In this way, the flow rate through the Plate Heat Exchanger increases, friction increases, and wear increases. The heat exchange appearance is appropriately thin. The agreed corrosion rate is 0.05mm / year. It has anti-corrosive ability to a certain range of organic matter, but weak resistance to hydrochloric acid and sulfuric acid. Like the 304 used as the raw material of the general home engineering air-conditioning host, then after a few years of use, the plate will break down and corrode.
It is also a kind of aging-prone part under natural conditions. Service life has an important influence on the service life of the plate Heat Exchanger. If these seals harden an important part of heat exchange technology in process industry equipment. The elastic gasket that seals between the various plate heat sinks is a wearing part. It loses its original elasticity, and if it is tightened or replaced from time to time, it can cause dripping. The plate heat exchanger needs to be cleaned regularly after long-term operation, usually once every two years.
