Reasons for insufficient heating in plate heat exchangers and solutions

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Plate heat exchangers are widely used in heating applications such as central heating, district heating, and domestic hot water supply. It is widely used among users due to its own characteristics. However, during use, due to various factors, insufficient heating temperature may occur, affecting the normal operation of the equipment. Below, the editor will provide a detailed explanation of the reasons for insufficient heating in plate heat exchangers and the methods to address them. I. Reasons: 1. The temperature on the cold side is low, and the temperatures at the cold and hot ends are also low. 2. Severe scaling inside the heat exchanger. 3. Insufficient flow rate of the primary-side medium results in a large temperature difference on the hot side and a low pressure drop. 4. The flow distribution among multiple heat exchangers operating in parallel is uneven. II. Treatment methods 1. Balance the flow rates of multiple plate heat exchangers operating in parallel. 2. Disassemble the plate heat exchanger and choose an appropriate method to clean the scale on the surface of the plates. 3. Increase the flow rate of the heat source or enlarge the diameter of the pipeline for the heat source medium ； There are many factors that affect the proper operation of plate heat exchangers, and different factors can cause various problems in the exchangers. Therefore, during the use of the equipment, it is necessary to follow the correct procedures to avoid problems resulting from improper operation. Furthermore, regular maintenance work plays a very important role in ensuring the proper operation of heat exchange equipment.