According to the direction of flow and wind, it can be divided into counter-flow closed cooling tower, cross-flow closed cooling tower and mixed-flow closed cooling tower.

According to the shell material, it can be divided into: closed cooling tower of galvanized steel sheet, closed cooling tower of galvanized steel sheet, closed cooling tower of stainless steel, closed cooling tower of FRP, etc.

According to the different material of heat exchanger, it can be divided into copper tube closed cooling tower, stainless steel tube closed cooling tower, carbon steel tube closed cooling tower, titanium tube closed cooling tower, aluminum tube closed cooling tower, etc.

According to the type of fan, it can be divided into two types: induced draft closed cooling tower and blast closed cooling tower.