The heat transfer principle of the plateheat exchangeris based on the law of thermodynamics: "heat is always from the high temperature of the object to the low temperature of the object transmission, when there is a temperature difference between the two objects is bound to heat transfer process." Two liquids in the plate Heat exchanger plate on both sides of the convection, the heat from the side of the liquid to the lower side of the liquid to the side of the liquid (in general, the high temperature side in the primary side, low temperature side in the secondary side). As the plate with a corrugated wave structure optimized design, the heat transfer efficiency can reach 92%, so high temperature side of the heat can be effectively absorbed by low temperature side, the use of. Specifically, in the high temperature side, the deep red arrows point to the high temperature side of the import, pink point is the high temperature side of the exit; in the low temperature side, dark blue point is low temperature side of the import, sky blue point is low Side of the exit. When the liquid enters from the deep red inlet, after convection, heat is passed through the plate to the low temperature side liquid entering from the dark blue inlet. After the temperature of the liquid at the high temperature side is lowered, the liquid flows out from the pink outlet. After the temperature of the liquid at the low temperature side rises, the liquid flows out from the sky blue outlet. At this point, the liquid completes the heat transfer process.

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