Compared with the traditional open cooling tower, the closed system uses a closed cooling tower as the main heat exchange equipment to isolate the cooling water from the outside world. In the heat exchange process, the environment, water body and equipment are highly clean, and it has the advantages of water saving, energy saving, low maintenance cost and intelligent operation.

The closed cooling tower can be used in steel plants and foundries; it can also be used for industrial fluid cooling of central air conditioning, chemical, pharmaceutical, hydraulic machinery, etc.