Shell and tube heat exchangers usually include shell and tube water-cooled condensers and shell and tube evaporators;

Horizontal shell and tube condenser is a closed water-cooled condenser composed of shell, tube sheet, heat transfer tube bundle, cooling water distribution parts (water cover or water distribution box), cooling water and refrigerant inlet and outlet pipe joints.

The structure of the horizontal shell and tube evaporator is basically similar to that of the horizontal shell and tube condenser. Horizontal shell and tube evaporator is one of the main forms of refrigeration equipment used to cool water or salt water. This kind of evaporator generally evaporates the refrigerant liquid outside the tube, and the refrigerant (water or salt water) flows in the tube.