REFRIGERATING PLANT Russian patent published in 2003 - IPC

FIELD: refrigeration equipment, applicable in air- conditioning systems, in food, chemical and gas industry. SUBSTANCE: the refrigerating plant has one closed circuit of refrigerant and two closed circuits of the refrigerant - transfer agent. In the refrigerant circuit installed in succession are a compressor, condenser, heat exchanger, receiver, throttle valve and three parallel evaporators. The second and third evaporators are made in the form of the process and operation condition cold accumulators. The circuit of the refrigerant has also an additional compressor connected to the condenser and via the accumulators to the receiver, baroregulating valve, positioned behind the cold operating accumulator, two additional throttle valves installed before the accumulator, and three magnetic valves placed passed each throttle valve. The first circuit of the cold-transfer agent connects the object to be cooled via an evaporator to the first pump and first magnetic valve. The second circuit connects to object to be cooled to the first three-way valve, through the condenser to the cooling tower and second three-way valve, then through the process accumulator of cold to the second pump and second magnetic valve. EFFECT: enhanced thermodynamic efficiency of the plant. 3 dwg