| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigeration device and a refrigeration method capable of reducing effect of performance improvement by a gas-liquid heat exchanger at the time of controlling performance. SOLUTION: A refrigerant circuit 200 of an offshore refrigerating unit forms a refrigeration cycle with a compressor 11, a condenser 12, an expansion valve 14 used as an adiabatic expansion apparatus and an evaporator 15. and the gas-liquid heat exchanger 20 for heat exchange between liquid refrigerant of an inlet side of the expansion valve 14 and gas refrigerant of an outlet side of the evaporator 15 is provided in a liquid line pipe 17A of the refrigeration cycle and a suction modulating valve 21 for performance adjustment is provided in a gas line pipe between the evaporator 15 and the compressor 11. A fine pipe 33 for connecting a gas refrigerant pipe 31 between the evaporator 15 and the gas-liquid heat exchanger 20 and a gas refrigerant pipe 32 between the suction modulating valve 21 and an inlet of the compressor 11 is provided in the refrigeration device. COPYRIGHT: (C)2005,JPO&NCIPI
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