| 摘要 |
The present invention relates to a hybrid heat pump system. The hybrid heat pump system according to the present invention comprises: a heat pump unit including a circulation pipe connecting an evaporator, a first heat exchanger, and first and second compressors and forming a closed loop, and an expansion valve installed at the circulation pipe between the first heat exchanger and the evaporator to control the flow of a refrigerant; a defrosting unit removing the frost in the evaporator by heating a heat exchange medium supplied to the evaporator through the second heat exchanger and generating overheated steam, and including a second heat exchanger installed between the evaporator and the first heat exchanger at the circulation pipe in a row; and a hot water supply unit having a heat exchanger for a heat exchange with the first heat exchanger and a storage tank wherein hot water is stored while connected to the heat exchanger. |
