The cooling tower system uses water as a medium to absorb heat from the water circulation system and discharge it into the atmosphere. It is a device to reduce the temperature of the water; its cold use of water and air flow and contact to exchange heat and cold to generate steam, volatile heat to achieve the purpose of evaporation and heat The principle of convection heat transfer and radiant heat transfer is to dissipate the waste heat generated in the industry or refrigeration and air conditioning to reduce the water temperature of the evaporative heat dissipation device to ensure the normal operation of the system. The device is generally round or square, called "cooling tower "Or "radiation tower".

Cooling towers are mainly used in air conditioning cooling systems, freezing series, injection molding, leather making, foaming, power generation, steam turbines, aluminum profile processing, air compressors, industrial water cooling and other fields. The applications are mostly in air conditioning cooling, freezing, plastic chemical industry .