| 摘要 |
PURPOSE:To contrive to efficiently utilize the solar heat by a method wherein the cold water in the lowermost partition tank of a heat accumulator, within which a plurality of the partition tanks are provided vertically, is charged to a solar heat collector and the high temperature water is recovered from the uppermost part of the solar heat collector. CONSTITUTION:A plurality of the partition tanks 4 are provided vertically within the heat accumulator 1 and the lowermost partition tank 4A is connected through the solar heat collector 5 to a flow divider 8. In addition, branch pipes 9A-9D are connected to the partition thanks 4A-4D respectively and yet solenoid valves 10B-10D are aranged in the branch pipes 9B-9D respectively. When the difference between the temperature measured with a temperature sensor 13 equipped on the solar heat collector 5 and that measured with a temperature sensor 12A equipped on the partition tank 4A exceeds the predetermined value, a pump 14 is driven in order to charge the low temperature water in the patition tank 4A into the solar heat collector 5 and to lead the high temperature water in the solar heat collector 5 into the flow divider 8, and then to lead through one of the valves 10 into one of the partition tanks 4B-4D which are at lower temp. than the temperature measured by a temperature sensor 11. Accordingly, the mixing of high temperature water with low temperature water can be checked and the utilization of high temperature water can be realized at all times. |
