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AIR CONDITIONER

申请公布号:JP2008121986(A)

申请号:JP20060306746

申请日期:2006.11.13

申请公布日期:2008.05.29

申请人:
DAIKIN IND LTD

发明人:SETOGUCHI TAKAYUKI

分类号:F25B1/00

主分类号:F25B1/00

摘要:PROBLEM TO BE SOLVED: To provide an air conditioner facilitating adjustment of a refrigerant circulation amount in the air conditioner using a supercritical refrigerant. SOLUTION: A refrigerating device 1b using the refrigerant operated in a supercritical region comprises a compressor 21, a first heat exchanger 23, a first expansion mechanism V2, a supercooling heat exchanger 24, a second expansion mechanism V3, a second heat exchanger 31 and a control part 5. The compressor compresses the refrigerant. The first heat exchanger cools the high pressure refrigerant compressed by the compressor. The first expansion mechanism reduces the pressure of the refrigerant to a supercritical pressure or lower. The supercooling heat exchanger supercools the refrigerant reduced in pressure by the first expansion mechanism. The second expansion mechanism reduces the pressure of the refrigerant cooled by the supercooling heat exchanger, to a low pressure. The second heat exchanger heats the refrigerant reduced in pressure by the second expansion mechanism. The control part performs first control for regulating the first expansion mechanism and second expansion mechanism to accumulate the liquid refrigerant in the supercooling heat exchanger. COPYRIGHT: (C)2008,JPO&INPIT

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