| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an economic heat pump hot water supply system capable of preventing the deterioration of temperature distribution within a hot water storage tank even if generated intermediate temperature water is stored, suppressing the formation of an intermediate temperature water layer as much as possible by completely using the stored intermediate temperature water, and efficiently performing hot water storage operation while avoiding an increase in the size of the hot water storage tank. <P>SOLUTION: The heat pump hot water supply system includes: the hot water storage tank 31 connected to a water circuit 21 of a water heat exchanger 12 and storing high temperature water produced by the water heat exchanger 12; a bathtub 51a; and a hot water heat retaining circuit 70 constituted of a bath circulating pump 71 for circulating hot water stored in the bathtub 51a, a reheating heat exchanger 72 for performing heat exchange between hot water and the high temperature water H produced by the water heat exchanger 12, and a reheating pump 73 for sending out the intermediate temperature water M produced by the reheating heat exchanger 72 to the hot water storage tank 31. The hot water storage tank 31 includes a hot water separation mechanism 90 for separating low temperature water L supplied from the lower part of the hot water storage tank 31 and the high temperature water H supplied from the upper part of the hot water storage tank 31. <P>COPYRIGHT: (C)2011,JPO&INPIT |
