| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat storage type hot water supplier capable of miniaturizing a product of a heat pump unit, maintaining a high COP and saving energy of the whole hot water supplier. <P>SOLUTION: In the heat storage type hot water supplier with the heat pump unit structured by serially connecting a compressor 1, a heat storage device 12 for transferring heat via a heat exchanger 2 for heating fluid or a heat storage agent 9, a decompression means 5 and a coolant-air heat exchanger 6, inner heat exchangers (3, 4) are provided to conduct heat exchange between a high pressure side pipe of the heat pump unit and a low pressure side pipe of the heat pump unit. By adjusting an inlet temperature of the decompression means 5 at the time that the temperature of fluid 21 to be heated rises, it is possible to inhibit rise of a discharge pressure, inhibit increase of consumption electric power of a compressor 1 and achieve the high COP. <P>COPYRIGHT: (C)2008,JPO&INPIT |
