CLASSIFICATION OF HEAT EXCHANGER ACCORDING TO THE HEAT TRANSFER MATERIAL, SURFACE SHAPE AND STRUCTURE
1. Metal material heat exchanger
Common materials are carbon steel, alloy steel, copper and copper alloy, aluminum and aluminum alloy, titanium and titanium alloy. Because the thermal conductivity of metal material is large, the heat transfer efficiency of this kind of heat exchanger is high.
2. Non-metallic material heat exchanger
Commonly used materials are graphite, glass, plastic, ceramics, etc. Because of the small thermal conductivity of nonmetallic materials, the heat transfer efficiency of this type of heat exchanger is low. Often used in corrosive systems.
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1. Tube heat exchanger A heat exchanger that conducts heat through a tube wall. It can be divided into shell heat exchanger, coil heat exchanger, tube heat exchanger, fin heat exchanger and so on.
2. Plate heat exchanger A heat exchanger that conducts heat through a plate surface. According to the structural form of heat transfer plate can be divided into plate type, spiral plate type, plate fin type.
3. Special type heat exchanger A heat exchanger with a special structure designed according to the special requirements of the process. Such as rotary, heat pipe heat exchanger, etc.
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