All-welded plate heat exchangers are widely used in many industries in China, but what we need to know here is that some friends will encounter many failures when using plate heat exchangers. The company will explain all welding methods as follows. Pay attention to some points when using it. I hope it can help you.

　　Before using the all-welded plate heat exchanger, check whether the fastening bolts are loose. If loose, tighten the bolts. Before starting, open all outlet valves of all welded plate heat exchangers and close the inlet valves of heat exchangers. After the pump is started, slowly open the inlet valve of the heat exchanger and gradually increase the flow and pressure to avoid local impact and damage to the equipment caused by local high pressure. Therefore, we need to know that in order to prevent overpressure on one side during the operation of the all-welded plate heat exchanger, the inlet valves of the cold and hot media of the heat exchanger should be opened at the same time, or the low pressure fluid should be injected slowly, and then the high pressure side fluid should be injected slowly. Of course, according to the readings of the thermometers at the inlet and outlet of the all-welded plate heat exchanger, the valve is used to control the flow of hot and cold fluids to achieve the required process parameters and stable operation. Therefore, the exhaust valve shall be set in the pipeline system during installation. After starting, the air in the equipment shall be discharged to prevent the air from staying in the equipment and reduce the heat transfer effect. If the hot and cold media contain large particles of sediment or other debris, they should be filtered in advance. It is forbidden to use sewage for hydraulic test and operation, so as not to affect the service life of heat exchanger.

　　When using all-welded plate heat exchangers, it should also be noted that when the temperature difference between the two media is large, the low temperature medium can be introduced first, and then the high temperature medium. If the machine is turned off or the power supply is turned off, close the high-temperature medium inlet valve immediately. The matching valve shall be well sealed without leakage. In order to avoid premature aging of gasket under high temperature, please turn off the low-temperature medium. For lifting. The lifting rope cannot be directly tied to the plate group, beam and guide rod; Therefore, 1m maintenance space can be installed to facilitate the cleaning and maintenance of plate heat exchangers in the future; The pipeline shall be equipped with thermometer and pressure gauge; If the medium taken from the plate heat exchanger is turbid or has large particles and is not clean, it is also necessary to configure a filter valve on the inlet pipe; In addition, there are some important points. It can also clean the plate heat exchanger pipes before formal operation. If welding slag or sand enters the heat exchanger, the heat exchanger will be blocked, affecting the heat exchange effect; When the all-welded plate heat exchanger is connected to the pipeline, the welding ground wire shall be placed at the welding place, and the ground wire shall not be placed at a certain distance to prevent the current circuit from damaging the all-welded plate heat exchanger; Of course, it is also necessary to ensure that the plate heat exchanger is within the normal clamping size.

　　The above content is the key points of the use of this all-welded plate heat exchanger that Xiaobian told you. Other knowledge points about the all-welded plate heat exchanger will continue to be updated in the next period. Remember to pay more attention to the website so as not to miss the wonderful content. Welcome to order your own products here.