| 摘要 |
The present invention makes it possible to obtain a refrigeration cycle device that uses HFO-1123, said device making it possible to suppress disproportionation reactions. This refrigeration cycle device 10 is provided with: refrigerant circuits 11a, 11b in which a high-pressure shell-type compressor 12, an exterior heat exchanger 14, an expansion valve 15, and an interior heat exchanger 16 are connected; a mixed refrigerant that is obtained by mixing 1,1,2-trifluoroethylene, difluoromethane, and 2,3,3,3-tetrafluoropropene, and circulates in the refrigerant circuits 11a, 11b, said mixed refrigerant having, in a state before being enclosed in the refrigerant circuits 11a, 11b, less than 50 wt% of 1,1,2-trifluoroethylene, and having a difluoromethane mixing ratio that is at least 0.7 and at most 2 times that of 1,1,2-trifluoroethylene by weight ratio; and a refrigerator oil 60 being adjusted such that the difluoromethane is, from among the refrigerants constituting the mixed refrigerant, the least soluble therein, and being enclosed inside the refrigerant circuits 11a, 11b. |
