| 摘要 |
PURPOSE: A structure of a regeneration combined cooling and heating system is provided to secure high heat-exchanging efficiency by heat-exchanging high and low-temperature refrigerants flowing in and out of an expander, respectively by embedding a heat exchanger and the expander in one heat-exchanging unit. CONSTITUTION: A structure of a regeneration combined cooling and heating system is composed of a compressing unit(10) for extruding refrigerant into high temperature and high pressure; an indoor device(20) installed in the room to cool the room air by heat-exchanging the low-temperature expanded refrigerant with the room air in a cooling operation and to heat the room air by heat-exchanging the high temperature and high pressure refrigerant with the room air in a heating operation; an outdoor device(30) mounted at the outside to discharge heat into the air by heat-exchanging the high temperature and high pressure refrigerant with the external air in the cooling operation and to heat the refrigerant by heat-exchanging the expanded refrigerant with the external air in the heating operation; and a heat-exchanging unit(40) for exchanging the heat of the high-temperature refrigerant discharged from the indoor device and the low-temperature refrigerant discharged from the outdoor device. A heat exchanger(42) for heat-exchanging the high-temperature refrigerant discharged from the indoor device and the refrigerant flowing in from the outdoor device and an expander(44) for receiving the refrigerant of the heat exchanger and cooling and expanding the refrigerant are installed in the heat-exchanging unit.
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