Cryogenic chilled water unit is mainly through the compressor, condenser, evaporator, expansion valve and other components, the cryogenic refrigerant (such as ammonia, freon, etc.) through the cycle work, absorb heat in the evaporator, to achieve the purpose of refrigeration.

In the chemical industry, low-temperature chilled water units are widely used in the cooling, freezing, and cooling of high-temperature reaction processes, such as polymer synthesis, catalyst preparation, and chemical reaction tower cooling. At the same time, the cryogenic chilled water unit can also be used for the freezing, storage, transportation and other links of chemical products. In the pharmaceutical industry, cryogenic chilled water units are often used in the pharmaceutical process of freeze-drying, freezing preservation and other processes. Low temperature chilled water unit can provide a stable low temperature environment to ensure the quality and validity of drugs.

In addition, low-temperature chilled water units can also be applied to food processing, cold chain logistics, cold storage and other fields to meet the needs of different industries for low-temperature refrigeration.