Explain how to reduce heat exchanger resistance
The plate heat exchanger has been widely used in metallurgy, mining, petroleum, chemical, electric power, medicine, food, chemical, papermaking, textile, ships, and other departments can be used for heating, heating, cooling, transpiration, condensation, sterilization, heat recovery and other conditions.
The use of solar energy in the heat transfer medium: ethylene glycol and other solar collector in the antifreeze heat exchange process, in order to reach the intention of using the solar energy.
Chemical industry: the production of titanium dioxide, ammonia, alcohol fermentation, resin composition, production of rubber, cooling, cooling water, alkali phosphoric acid formaldehyde carbon industry, sodaproduction.
The iron and steel industry: cooling quenching oil cooling, electroplating liquid, cooling speed reducer lubricating oil, cooling rolling machine, wire drawing machine coolant.
In the application of plate heat exchangers, there are certain requirements for resistance. Generally, the medium uniform flow rate in the channel is 0.3-0.6m/s, and the resistance is not more than 100kPa. In order to ensure the completion of this requirement, certain measures should be taken to assist. The following Shandong plate heat exchanger manufacturers on how to reduce the resistance of heat exchangers:
1. Choose the hot mixing board: The two-sided corrugated plates of the hot mixing board have the same structure. The plates are divided into hard plate (H) and soft plate (L) according to the angle of the herringbone corrugation, and the angle (generally about 120 degrees) is more than 90.
2. Selection of asymmetric plate heat exchangers: symmetrical plate heat exchangers consist of plates with double-sided corrugated structures, which constitute plate heat exchangers with flat cross-section area of cold and warm runners.
3. the process: when the flow of hot and cold is large, can use multi process combination placement, small flow side of the frequently used procedure, in order to improve the flow rate, obtain a higher heat transfer coefficient.
4. By-pass tube of plate heat exchanger: When the flow rate of hot and cold medium is relatively large, by-pass tube can be set at the inlet and outlet of plate heat exchanger on the side of large flow rate to reduce the flow rate into plate heat exchanger and reduce resistance.
The general knowledge of heat exchangers is comprehensive and professional, which can help us solve some difficult problems in application. If you have any problems in the use of heat exchangers, you may as well communicate with plate heat exchanger manufacturers more!
To sum up the Shandong shunze Amperex Technology Limited, want to know more about Shandong heat exchanger knowledge, welcome to pay attention to our website: thank you for your support!