| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To inexpensively achieve a heating system having high reliability, high efficiency and a small installation area by providing a heat storage circuit and a heat storage use circuit to optimally control heat storage operation and heat storage use operation, in a heat storage type heat pump device used in a cold region. <P>SOLUTION: In the heat pump device, a refrigerant circuit 10 is formed by a compressor 11, a radiator 12, an expansion valve 13, an evaporator 14a and an evaporator 14b, the heat storage circuit 21 is formed by a heat storage tank 23, the radiator 12a and a heating terminal 22, and the heat storage use circuit 24 is formed by the heat storage tank 23 and the evaporator 14b. Corresponding to change in the operating state detected by a heat storage tank temperature detection means 31 and an outside air temperature detection means 33, switching is performed between a heat storage operation mode and a heat storage use operation mode, so as to effectively use thermal energy in the atmosphere. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
