| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a constitution which can quickly raise a temperature at heating in a heat pump system of high COP (coefficient of performance) free from a probability of freezing even in winter. <P>SOLUTION: This heat pump system comprises a water circulating circuit 32 connected with storage tanks 10, 11 storing hot water and water to circulate the hot water and water, and a heat pump circuit 1 constituted by connecting a compressor 6, a first heat exchanger 3, an expanding means 4 and at least one evaporator to circulate a heat medium, at least one of the evaporators is a second heat exchanger 2 for cooling the water of the water circulating circuit 32 by heat exchange between the heat medium of the heat pump circuit 1 and the water of the water circulating circuit 32, the heat pump circuit 1 is provided with a bypass flow channel 23 bypassing the second heat exchanger 2, and the heat medium is allowed to flow in the bypass flow channel 23 when heat exchange by the second heat exchanger 2 is unnecessary. <P>COPYRIGHT: (C)2009,JPO&INPIT |
