| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat pump heat supply system that can efficiently and appropriately execute a heat supply operation for a desired heat load without reducing the quantity of heat stored in a hot water storage tank. <P>SOLUTION: The heat pump heat supply system A comprises: a loading heat exchanger 5 supplied with hot water from an upper part of the hot water storage tank 2; and a heat pump 1 having a hot water heating heat exchanger 13 capable of heating hot water from a lower part of the hot water storage tank 2 and returning it to the hot water storage tank 2, and a hot water-refrigerant heat exchanger 15 capable of heating a refrigerant by means of the heat of hot water supplied from an intermediate height region of the hot water storage tank 2. A hot water circulation circuit C1 can be set in which the loading heat exchanger 5, hot water-refrigerant heat exchanger 15 and hot water heating heat exchanger 13 are connected in series by piping, and the hot water heated by the hot water heating heat exchanger 13 is circulated back to the hot water heating heat exchanger 13 via sequential supply to the loading heat exchanger 5 and hot water-refrigerant heat exchanger 15. <P>COPYRIGHT: (C)2007,JPO&INPIT |
