How to improve heat transfer area in heat exchanger

The greater the total thermal resistance during heat transfer of the plate heat exchanger, the most positive measure to enhance the phe heat transfer effect is to try to improve the heat transfer coefficient of the equipment. The heat transfer coefficient of the plate heat exchanger is actually determined by the total thermal resistance of the heat transfer process. The lower the heat transfer coefficient of the plate heat exchanger, the worse the heat transfer effect of the plate heat exchanger. 

The heat transfer efficiency of the phe is enhanced to increase the heat transfer coefficient of the plate heat exchanger. A variety of strengthening components and strengthening measures have appeared , mainly including the use of threaded tubes, horizontal tubes, zoom tubes, large lead multi-groove tubes, integral double-sided spiral fin tubes, and plate-type exchanges in plate heat exchangers. The heat exchanger tubes are scrambled to enhance the heat transfer in the tubes. The turbulent heat transfer in the plate heat exchanger heat exchanger tube for enhanced heat transfer has been used in the industry for many years, which can significantly improve the total heat transfer coefficient of the plate heat exchanger, and can greatly save plate heat exchange. The heat transfer area of the device reduces the weight of the device and saves a lot of metal materials. Many advantages have been paid more and more attention. It is impossible to increase without limit, because the expansion of heat transfer area and the increase of heat transfer temperature difference are often limited by the site, equipment, capital and effect.

The main direction of the technical evaluation of the current heat transfer enhancement plate heat exchanger is how to improve the heat transfer enhancement effect of the plate heat exchanger by controlling the heat transfer coefficient of the plate heat exchanger. The most widely used technique for increasing the heat transfer coefficient of a plate heat exchanger is to add a scrambler additive in the heat exchanger tube of the plate heat exchanger, and to use the action of the turbulent additive to heat the heat transfer process of the plate heat exchanger. The resistance is greatly reduced, and finally the heat transfer coefficient of the plate heat exchanger is increased. The total thermal resistance is a superposition plate heat exchanger with various thermal resistances in use. Therefore, in order to change the heat transfer coefficient, it is necessary to analyze each sub-heat resistance of the heat transfer process. How to control each sub-heat resistance of the plate heat exchanger heat transfer process is the key to determine the heat transfer coefficient of the plate heat exchanger.