Generally, we distinguish plate heat exchanger mainly according to the structure, that is, according to the shape, it can be divided into four categories: coil heat exchanger, welded plate heat exchanger, spiral plate heat exchanger and removable plate heat exchanger.
Among them, the welding plate heat exchanger is divided into: fully welded plate heat exchanger, semi welded plate heat exchanger, plate and shell heat exchanger, and brazed plate heat exchanger.
The commonly used classifications are as follows:
1 according to the heat exchange area per unit space, the plate heat exchanger is a compact heat exchanger, which is mainly compared with shell and tube heat exchanger. The traditional shell and tube heat exchanger occupies a large area.
2 according to the process used, there are different names: plate heater, plate condenser, plate cooler, plate preheater;
3 according to the process combination, it can be divided into one-way plate head exchange and multi-way plate head exchange;
4.According to the flow direction of the two kinds of media, they are divided into forwarding flow plate heat exchanger, reverse flow plate head exchanger and cross-flow plate heat exchanger;
5 according to the gap size of the runner, it can be divided into plate head exchanger with regular gap and plate head exchanger with a wide gap;
6 according to the corrugation, plate head exchanger has more detailed differences, which will not be described in detail. Please refer to plate head exchanger corrugation form.
7 according to whether it is a complete set of products, it can be divided into the stand-alone plate heat exchanger and plate heat exchanger unit.