| 摘要 |
The present invention relates to a heat pump system, and more particularly, to a multi-functionalization and performance factor improvement of a heat pump system coupled with a water-heating means, wherein the function of the heat pump system is verified and the performance factor of the heat pump system is improved. The heat pump system of the present invention comprises a basic freezing cycle (10), a water-heating circuit (20), and a re-condensation means (30). The basic freezing cycle (10) is constituted by connecting, in sequence, a compressor (11), a four-way valve (12), an indoor heat exchanger (13), a cooling expansion valve (14), a heating expansion valve (15), an outdoor heat exchanger (16), and the four-way valve (12) via a refrigerant conduit (17), and by connecting the four-way valve (12) and the compressor (11) via a refrigerant suction conduit (18). The water heating circuit is constituted by connecting a bypass conduit (21) between the compressor (11) and the four-way valve (12) connected via the refrigerant conduit (17), installing a condenser (22) to the bypass conduit (21), installing a heat absorbing heat exchanger (23) to the condenser (22), and connecting a user side heat exchanger (24) to the heat-absorbing heat exchanger (23). The re-condensation means (30) is constituted by connecting a second refrigerant conduit (31) to the outlet of the condenser (22) of the bypass conduit (21) and to the inlet of the heating expansion valve (15) of the refrigerant conduit (17), installing a second condenser (32) to the second refrigerant conduit (31) such that the heat transfer relationship between the second condenser (32) and the outdoor heat exchanger (16) is kept, and installing a check valve (33) to the outlet of the second condenser (32) such that the check valve (33) is opened toward the heating expansion valve (15). |
