The working principle of an industrial water cooler is based on a refrigeration cycle, which mainly includes four processes: evaporation, compression, condensation, and throttling. During the evaporation process, the liquid refrigerant absorbs the heat of the cooling water, causing its temperature to decrease; Subsequently, the refrigerant is compressed into a high-temperature and high-pressure gas during the compression process; During the condensation process, the refrigerant gas with high temperature and pressure is cooled by cooling water and transformed into a liquid state; Finally, the liquid refrigerant is depressurized through the throttle valve and enters the evaporation process again to complete the refrigeration cycle. This cycle is constantly repeated, achieving a continuous cooling effect.