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Plate heat exchanger increases the heat transfer coefficient of the plate surface
Oct 22, 2018

In the operation of the plate heat exchanger, the heat transfer heat exchanger of the partition wall, the cold fluid transfers heat through the heat exchanger plate, and the fluid and the plate are in direct contact, and the heat transfer mode is heat conduction and convection heat transfer. The key to improving the heat transfer efficiency of the plate heat exchanger during operation is to increase the heat transfer coefficient and the logarithmic mean temperature difference.

 The heat transfer coefficient of the plate heat exchanger can only increase the surface thermal coefficient of both sides of the plate, so that the thermal resistance of the scale can be reduced, and the plate with high thermal conductivity can be selected to reduce the thickness of the plate. Effectively increase the heat transfer coefficient of the heat exchanger.

Increasing the heat transfer coefficient of the plate heat exchanger

The corrugation of the plate heat exchanger enables the fluid to generate turbulence at a small flow rate, so that a higher surface heat transfer coefficient can be obtained to some extent, the surface heat transfer coefficient and the geometry of the plate corrugations and the flow of the medium. State related. The waveform of the plate includes a herringbone shape, a straight shape, a spherical shape, and the like. After years of research and experiments, it is found that the herringbone plate with triangular shape of corrugation has a high surface heat transfer coefficient, and the larger the angle of the corrugation, the higher the medium flow velocity in the flow channel between the plates, the greater the surface heat transfer coefficient. http://www.wxlsshzb.com/


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