REFRIGERATING UNIT Russian patent published in 2006 - IPC F25D11/00 F25B9/00 

FIELD: refrigerating engineering.

SUBSTANCE: refrigerating unit can be used for quick frosting of food, including blood plasma. Refrigerating unit has compressor, which has output connected with input pf condenser and input connected with output of evaporator, main choke member mounted between output of condenser and input of evaporator. At least one electromagnet solenoid valve with coil, at least one commutation unit and capillary tubes cooling agent overheating temperature devices and set point device is introduced into refrigerating unit additionally. Outputs of valves ore connected in parallel with to output of condenser and with input of choke member. Outputs of valves are connected with inputs of capillary tubes. Outputs of capillary tubes and output of choke member are connected in parallel to input of evaporator. Ends of windings of any coil are connected with electric power circuit through commutation unit. First control input of the commutation unit is connected with outputs of cooling agent overheating temperature set point device. The second control input is connected with one temperature detector disposed onto pipeline, which connects output of evaporator and input of compressor. Capillary tubes are made to have hydraulic resistance that does not exceed hydraulic resistance of choke member. Different temperature modes can be provided at the same amount of cooling agent circulating in hydraulic line.

EFFECT: improved efficiency of operation.

2 cl, 1 dwg