The water-cooled low-temperature screw chiller is named after its key component - the compressor, which uses a screw type. The refrigerant from the evaporator in the unit is gas; After adiabatic compression by the compressor, it becomes a high-temperature and high-pressure state. The compressed gas refrigerant is cooled and condensed at equal pressure in the condenser. After condensation, it changes into a liquid refrigerant, which then expands to low pressure through a throttle valve and becomes a gas-liquid mixture. The liquid refrigerant under low temperature and low pressure absorbs the heat of the cooled substance in the evaporator and becomes a gaseous refrigerant again
