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Common failures and maintenance methods of plate heat exchangers_

by:DIGUANG     2021-04-17
Common faults and maintenance methods of brand plate heat exchangers

2019-05-24 15:55
The 917 brand plate heat exchanger sometimes has some faults during operation. If it is not solved in time, it is likely to affect the normal use of the equipment. Under normal circumstances, the common fault types of brand plate heat exchangers are: liquid leakage, external leakage, excessive pressure drop, heating temperature cannot meet the requirements, etc. For these four types of faults, what repair methods should we take? Next, the editor will tell you about the common failure types of brand plate heat exchangers and the maintenance and treatment methods of plate heat exchangers. Plate heat exchangers are prone to leakage during operation. There are many reasons for the leakage. According to different reasons, the method of dealing with the leakage of the plate heat exchanger is also different. Below we will discuss the leakage of the plate heat exchanger. The reasons are briefly analyzed and summarized, and corresponding solutions are proposed. Causes of leakage of plate heat exchangers Causes of leakage 1. The clamping size is not in place, the size of each place is uneven (the size deviation of each place should not be greater than 3mm) or the clamping bolts of the plate heat exchanger are loose. 2. Part of the gasket is out of the sealing groove, there is dirt on the main sealing surface of the gasket, the gasket is damaged or the gasket is aging. 3. The plate is deformed and the assembly misalignment causes the running pad. 4. There are cracks in the sealing groove of the plate or the second sealing area. Plate heat exchanger leakage treatment method, leakage treatment method 1. In the non-pressure state, re-clamp the equipment according to the clamping size provided by the manufacturer, the size should be uniform, and the deviation of the compact size should not exceed ±0.2N (mm ) (N. is the total number of plates), the parallelism between the two compression plates should be kept within 2mm. 2. Make a mark on the leaking part, then disassemble the plate heat exchanger and investigate and solve it one by one, reassemble or replace the gasket and plate. 3. Disassemble the heat exchanger, repair the deformed parts of the plate or replace the plate. When there is no spare part for the plate, the plate at the deformed part can be temporarily removed and then reassembled for use. 4. When reassembling the disassembled plates, the plate surface should be cleaned. The plate heat exchanger prevents dirt from adhering to the gasket sealing surface. The above is the maintenance and treatment methods for common failure types of brand plate heat exchangers, and hope to help you better understand the maintenance process of various types of plate heat exchangers. For more information about the maintenance of brand plate heat exchangers, please pay attention to the official website of Diguang!
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