Plate heat exchanger is a kind of heat exchanger which is made by lamination of heat exchange plate made by pressing thin metal plate. A thin rectangular channel is formed between various plates, and heat is exchanged through half of the plates. The four corner holes of the plate and gasket form the distribution and collection pipes for the fluid, while separating the hot and cold fluid, and the working fluid flows through the narrow and tortuous channels formed between the two plates.

The hot and cold fluids pass through the flow channel in turn, and there is a layer plate in the middle to separate the fluids and conduct heat exchange through the plate. The plates are sealed and deflected by sealing gaskets, separating two fluid channels of cold/hot, and exchanging heat with separated plates to reach the required temperature. The two heat transfer media flow into their respective channels to form a countercurrent or flow through each plate for heat exchange.

There are holes in the four corners of each plate of plate type heat exchanger. After the plate bundle is assembled, the fluid distribution pipe and the collecting pipe are formed. After the heat exchange of cold/hot medium, the heat is recycled from the respective collecting pipes. Heat exchange plate stamping into a variety of corrugated shape, most of the current v-groove to prevent the formation of scale on the plate.