Improve cryogenic refrigeration's integrative system of fluorine pump air conditioner

The utility model provides an improve cryogenic refrigeration's integrative system of fluorine pump air conditioner, including refrigerant circulation circuit, refrigerant circulation circuit includes compressor, condenser, liquid storage pot, expansion valve and the evaporimeter that connects gradually, still includes fluorine pump, middle heat exchanger and is used for controlling the valve group that the condensing agent moved towards, the fluorine pump is located the expansion valve input with between the reservoir output, middle heat exchanger is located the expansion valve input with between the fluorine pumping over output, the compressor with be equipped with the connecting pipe between the condenser, the connecting pipe passes middle heat exchanger. Carry out the heat transfer from evaporimeter high temperature refrigerant that comes out and the cryogenic refrigeration agent that gets into before the evaporimeter in middle heat exchanger, the improvement gets into the temperature of the refrigerant of evaporimeter, avoids the evaporimeter to frost.