The parallelism between the two compression plates

The internal heat exchanger is seriously polluted

The reason why the Air Dryer series company of the heat exchanger cannot meet the requirements: Reason 1 The flow rate of the medium on the primary side of the heat exchanger is insufficient, resulting in a large temperature difference on the hot side and a small pressure drop. 2 The temperature of the cold end of the heat exchanger is low, and the temperature of the cold end and the hot end is low. 3 The flow distribution of multi-plate heat exchangers operating in parallel is uneven.

4 The internal heat exchanger is seriously polluted. Way 1 Increase the flow rate of the heat source of the heat exchanger or increase the diameter of the heat source medium tube. 2 Balance the flow of multiple plate heat exchangers operating in parallel. 3 Disassemble the heat exchanger to clean the surface of the plate.In order to solve the problem of misalignment of the heat exchanger, the deformed plate and the gasket sliding down from the gasket groove should be replaced in time. In the application of heat exchangers, whether the plate is deformed, cracked, or the gasket is still aging or cracked,

it needs to be replaced in time. If the sliding line is not used on site, the heat exchanger has no spare parts and cannot be shut down, and should be handled on site. The simple method of on-site treatment is to remove the damaged plates and plates of the heat exchanger in pairs from the attacked biological safety cabinet (A plate + B plate). If the number is not too much, the number of flow channels to be cut is not large, and the continuous use of the heat exchanger after assembly has almost no effect on production.The internal leakage of the heat exchanger is: thinning, perforation, and wear caused by tube corrosion; the expansion part is loose due to cracks, corrosion, and vibration; due to contact with the baffle, wearing, and perforation; the loosening of the floating cover fastening bolt, The gasket of the component has deteriorated.

Due to the internal leakage of the heat exchanger, the two fluids are mixed. For safety reasons, the heat exchanger should be disassembled and inspected immediately. Generally, staining may occur when mixing and impurities, so the heat exchanger does not meet the specifications and the quality is reduced. Even when the heat exchanger is closed, it is important to sample and detect internal leaks in advance. Analyze the low-pressure fluid outlet of the heat exchanger.