Using a screw type of the screw chiller, the unit is cooled by the gas in which the evaporator comes out. After adiabatic compression of compressor, it becomes high temperature and high pressure state. After being compressed, the gas is cooled and cooled in the condenser, and then it is cooled and changed to a liquid cold medium, and then the throttle valve expands to low pressure and becomes a mixture of air and liquid. In this case, the liquid cold medium under low temperature and low pressure is absorbed by the evaporator and the heat of the cold matter is absorbed into the gaseous cold medium. Gaseous cold media is re-entered into the compressor to start a new cycle. That's the freezing cycle.
