The plate heat exchanger is a new type of high efficiency heat exchanger which is assembled by a series of metal sheets with a certain corrugated shape. The plate heat exchanger is a high-efficiency and energy-saving heat exchange equipment. It has many advantages such as high heat transfer coefficient, compact structure, low consumables, various forms and easy maintenance. The main feature of the internal leakage of the plate heat exchanger is that the medium on the higher pressure side is connected to the medium with the lower pressure side, and the pressure and temperature anomalies occur in the system. If the medium is corrosive, it may also cause corrosion of the plate heat exchanger gasket. The internal leakage usually occurs in the diversion area or the gasket two-way sealing area. What is the treatment method for the plate heat exchanger internal leakage?
(1) Replace the cracked or perforated plate and find the crack of the plate by the light transmission method at the site.
(2) Adjust the operating parameters to meet the design conditions.
(3) The clamping dimensions of the heat exchanger during maintenance and assembly should meet the requirements, not the smaller the better.
(4) Reasonable matching of plate heat exchanger plate materials