We ice block machine use shell-and tube heat exchanger and plate type heat exchanger to exchange heat .Both heat exchangers can't freeze inside them, otherwise it will damage. Ok ,i will introduce you two heat exchangers:
Shell-and tube heat exchanger
Shell and tube heat exchanger is a heat exchanger Shandong million aggregate conduction cooling device developed by the shell, tube sheets, tubes, baffle and cabinet composition.
A bundle or coil mounted in a housing constituting the heat exchanger. The two heat transfer medium in a tube, the tube casing of another body, the heat transfer through the tube wall, is generally horizontal. The new capacity condenser condensing medium, heat exchange area is calculated as follows: the heat exchange area (m2 = 3.1416 × pipe diameter × × total tube length to select the size of the new condenser tubes, should be based on medium quality domestic condensing unit time of size to be.
Plate type heat exchanger
Plate heat exchanger is a new and efficient heat exchanger consists of a series of corrugated sheet metal with a certain shape made of stacked. Forming a thin rectangular plate between the various channels through half a slice of heat exchange. Plate heat exchanger is a liquid - liquid, liquid - vapor ideal heat exchange equipment. It has a high heat transfer efficiency, low heat loss, compact and lightweight, small footprint, easy installation and cleaning, widely used, and long service life. Pressure loss in the same case, the heat transfer coefficient ratio and tube heat exchanger 3-5 times higher, the area is the third-tube heat exchangers, heat recovery can be as high as 90%.
Nice post!
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