| The plate heat exchanger process combination form should be calculated based on heat exchange and fluid resistance, and determined under the requirements of process conditions. Try to make the convective heat transfer coefficients in the cold and hot water channels equal or close to each other, so as to obtain the best heat transfer effect. Because the convective heat transfer coefficients on both sides of the heat transfer surface are equal or close, the heat transfer coefficient gets a larger value. Although the flow velocity between the plates of the plate heat exchanger varies, the average flow velocity is still used in the calculation of heat exchange and fluid resistance. Since the "U" shaped single-pass nozzles are fixed on the pressure plate, it is easy to disassemble. |
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