How to repair the abnormal operation of the plate heat exchanger? _
Once the 789 plate heat exchanger is abnormal during operation, we must be more vigilant. This indicates that there may be a problem with a certain part of the equipment. At this time, we must promptly investigate where the problem is, and then ' Prescribe the right medicine' to restore the normal operation of the equipment as soon as possible. The following editor will tell you the main reasons for the abnormal operation of the plate heat exchanger and the maintenance methods of the plate heat exchanger. Reasons for abnormal operation of the plate heat exchanger: When the plate heat exchanger is used for the first time, in order to avoid instant pressure fluctuations caused by the leakage of the plate heat exchanger, you should first open the cold and hot water inlet and outlet valves, and then slightly open the cold and hot medium inlet valves. The exchanger is slowly pressurized until the intake valve is fully opened. Never switch the inlet and outlet valves blindly, as this may cause leakage of the plate heat exchanger. A filter is installed in the front section of the plate heat exchanger. For the cleaning of the filter of the plate heat exchanger, in order to reduce the frequency of inspection and maintenance cleaning of the plate heat exchanger, a coarse filter is generally added at the inlet of the cooling medium to prevent particle debris from blocking the 3-5mm plate channel. When the pressure before and after the filter changes greatly, the filter can be opened for cleaning. If there is no filter, the plate heat exchanger will fail due to the blockage of the plate channel. If the plate heat exchanger suddenly leaks under normal circumstances, it is probably due to the following reasons: 1. The material pressure of the plate heat exchanger is fluctuating or the temperature is too high. 2. The gasket is cracked and aging after long-term use. 3. The plate is deformed and the sealing gasket cannot be fixed. When the sealing gasket fails, remove the plate heat exchanger to take over, remove or replace an even number of adjacent broken plates. If you do not remove the cooling plate and remove the film at the same time, it will cause mixing of hot and cold media. The maintenance methods for abnormal operation of the plate heat exchanger are as follows: 1. For the equipment that needs to be repaired, the heat exchanger should be disassembled retrogradely in the order of installation. 2. The equipment used in the petroleum and chemical industries should be regularly maintained according to the maintenance cycle. 3. If the medium in the equipment is flammable, explosive or corrosive, it should be repaired at least once a year. 4. The plate heat exchanger used in other industries can be repaired once every three years if there is no leakage. The above are the main reasons for the abnormal operation of the plate heat exchanger and the corresponding maintenance methods. I hope to help you solve the problem as soon as possible. For more information on the maintenance methods of plate heat exchangers, please follow the official website of Diguang!