PURPOSE: To permit to supply hot-water sufficient to hot-water supplying load from morning to night by a method wherein hot-wster reserving amount upon night operation of a heat pump refrigerant circuit is controlled by a hot-water temperature detector provided at the upper part of a hot-water reserving tank.
CONSTITUTION: A heat collecting system is constituted of a collector 1, collecting heat from solar heat and atmosphere heat, a hot-water heat exchanger 2, a compressor 3, an expansion valve 4 and an accumulator 5, which constitute the heat pump refrigerant circuit. On the other hand, an upper boil-up layer 13 is provided at the top of the hot- water reserving tank 6 and first hot-water temperature detector 9 is provided at a position of the hot-water reserving tank 6, whereat a hot-water reserving amount in accordance with the hot-wster supplying load in the morning may be obtained, so as to constitute the device to control the hot-water reserving amount by the night operation through the operation of the first detector 9. According to this method, the hot-water reserving operation in accordance with the hot-water supplying load in the morning is effected in the night to utilize it in the morning while the hot-water reserving operation for the hot-water supplying load from daytime to night is effected in the whole area of the hot-water reversing tank, thus, hot-water, sufficient for the hot-water supplying load from morning to night or for a whole day, may be supplied.
| JPS5896945 | SOLAR HEAT UTILIZING DEVICE |
NOGUCHI MASAO
IWANAGA SHIGERU
WATANABE TAKEJI
OUTAKE TATSUNORI
