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    USAGE AS REFRIGERANT IN REFRIGERATION CYCLE DEVICE
    5.
    发明公开
    USAGE AS REFRIGERANT IN REFRIGERATION CYCLE DEVICE 审中-公开

    公开(公告)号：EP4450894A1

    公开(公告)日：2024-10-23

    申请号：EP22907337.4

    申请日：2022-12-08

    申请人： DAIKIN INDUSTRIES, LTD.

    发明人： KAWAE, Arisa

    IPC分类号： F25B1/00 ,  C09K5/04 ,  C10M105/38 ,  C10M107/24 ,  F25B41/31 ,  C10N30/00 ,  C10N40/30

    摘要： There is provided a use as a refrigerant in a refrigeration cycle apparatus capable of suppressing decomposition of the refrigerant. In a use as a refrigerant in a refrigeration cycle apparatus (1), the refrigeration cycle apparatus having a refrigerant circuit (10) including a compressor (11), the compressor (11) including a compression element (21) that compresses the refrigerant, and an oil reservoir (37) that stores a refrigerating machine oil, the pressure of air inside the refrigerant circuit (10) being 667 Pa or less, the refrigerating machine oil containing 3.0 wt% or more and 5.0 wt% or less of an acid scavenger, the temperature of the refrigerating machine oil in the oil reservoir (37) being maintained at 120°C or lower, and the refrigerant being at least one of a mixed refrigerant containing 1,2-difluoroethylene and one or more types of hydrofluorocarbon, a mixed refrigerant containing 1,2-difluoroethylene and one or more types of hydrofluoroolefin, and a mixed refrigerant containing one or more types of hydrofluorocarbon and one or more types of hydrofluoroolefin.

    HEAT MEDIUM CIRCULATION DEVICE
    10.
    发明公开
    HEAT MEDIUM CIRCULATION DEVICE 审中-公开

    公开(公告)号：EP4443079A1

    公开(公告)日：2024-10-09

    申请号：EP22898203.9

    申请日：2022-09-09

    申请人： Panasonic Intellectual Property Management Co., Ltd.

    发明人： AOYAMA, Shigeo ,  YAMAOKA, Yuki ,  MORIWAKI, Shunji ,  YOSHIDA, Jun ,  NAKATANI, Kazuhito

    IPC分类号： F25B49/02 ,  F24F1/22 ,  F25B1/00

    CPC分类号： F25B49/02 ,  F25B1/00 ,  F24F1/22

    摘要： A heat source-side circuit 20, an outdoor blower 26, a use-side circuit 30, and an electrical box 27 are provided, and the heat source-side circuit 20 is charged with flammable refrigerant, and the use-side circuit 30 is charged with heat medium, and the flammable refrigerant and the heat medium flow through the intermediate heat exchanger 23, and the heat medium pipe 31 includes a gas discharge device 50 which at least includes an air vent valve 51 or a pressure relief valve 52, and the gas discharge device 50 is housed in the space C, and the space C and the electrical box 27 are isolated from each other by at least one or more partition walls, and in an outdoor unit 11 consisting of the source-side circuit 20, the refrigerant/heat medium heat exchanger 23, and the air vent valve 51 and the pressure relief valve 52, which are part of the use side circuit 30, by reducing the risk of ignition in the high-risk electrical box 27 that is the ignition source, to provide a heat medium circulation device that further improves safety.