The plate heat exchanger is a new type of high efficiency heat exchanger which is assembled by a series of metal sheets with a certain corrugated shape. It has the advantages of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area, convenient installation and cleaning, wide application and long service life.
Under the same condition of pressure loss, the heat transfer coefficient is 3-5 times higher than that of the tubular heat exchanger, the floor space is one-third of the tube heat exchanger, and the heat recovery rate can be as high as 90% or more.