| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat pump system capable of quickly and efficiently performing defrosting of an outdoor heat exchanger when the outside air temperature is low in a heating operation, and efficiently condensing refrigerant vapor by the outdoor heat exchanger even when the outside air temperature is high in a cooling operation. <P>SOLUTION: This heat pump system comprises a basic refrigerating circuit constituted by successively connecting a compressor, a four-way valve, an indoor heat exchanger, an expansion valve for cooling, an expansion valve for heating, the outdoor heat exchanger and the four-way valve by conduit pipes, and connecting the four-way valve and the compressor by a suction conduit pipe, a hot water heating circuit connected between the compressor and the four-way valve of the conduit pipe, and an intake temperature adjusting means connected with a heat transfer tank through a supply pipe and a return pipe provided with on a circulation pump. The outdoor heat exchanger and the heat exchanger for adjusting temperature are constituted by alternately vertically arranging a heat transfer tube 31 for refrigerant and a heat transfer tube 32 for brine in a casing C, and vertically disposing a plurality of fins 35 on the heat transfer tube 31 for refrigerant and the heat transfer tube 32 for brine. <P>COPYRIGHT: (C)2007,JPO&INPIT |
