| 摘要 |
PROBLEM TO BE SOLVED: To appropriately adjust an amount of a refrigerant, in a refrigerating device in which refrigerant pressure on a high pressure side becomes critical pressure or more. SOLUTION: This refrigerating device 100 is such a refrigerating device in which refrigerant pressure on the high pressure side of a refrigerant circuit 10 becomes critical pressure or more, and is provided with a bypass 30 connecting the high pressure line 21 and low pressure line 22 of the refrigerant circuit 10. The bypass 30 is formed by a first expansion valve 31 connected to the high pressure line 21, a second expansion valve 32 connected to the low pressure line 22, and an intermediate pressure line 33 connecting the first expansion valve 31 and the second expansion valve 32. The intermediate pressure line 33 is provided with a receiver 34 storing a refrigerant. A circulation amount of the refrigerant is adjusted by varying a degree of depressurization of at least either the first expansion valve 31 or the second expansion valve 32. COPYRIGHT: (C)2008,JPO&INPIT
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