There are many types of plate heat exchangers, each of which has suitable working conditions. The engineering design should first select this.

If the temperature is above 200 °C and the pressure is greater than 2 MPa, the brazed heat exchanger can be selected. If the total area is large, the full-welded heat exchanger can also be selected;

When the temperature is greater than 300 ° C and the pressure is greater than 3.5 MPa, the shell-and-shell heat exchanger should be selected;

For working conditions with small temperature difference at the end, shallow groove corrugation may be used; for more frequent disassembly, a detachable heat exchanger may be used;

For large flow differences, an asymmetric heat exchanger can be used.