The cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and discharge it into the atmosphere to reduce the temperature of the water; its cooling is the use of water and air flow contact to perform cold and heat exchange to generate steam, steam volatilization Evaporative heat dissipation devices that take away heat to achieve evaporative heat dissipation, convective heat transfer and radiant heat transfer to dissipate waste heat generated in industry or refrigeration and air conditioning to reduce water temperature to ensure the normal operation of the system.