| 摘要 |
PURPOSE:To increase collected heat amount and the output of cooled water, by making dispersion of heat caused by mixing of hot water with cold water small, by providing flow paths having resistors in a surge tank, and by preventing heating mediums circulating through a solar heat collecting pipe line and a low-heated water heating pipe line from mixing with each other in the surge tank. CONSTITUTION:A tank 1, which is divided into two parts by a bulkhead 15 having water flow path 14, is provided between a solar heat collecting pipe lines 3 and 6 and the water heating pipe lines 9 and 11 of a low-heated water cooling and heating unit 7. In this case, the pipe line 6 on the outlet side of a solar heat collector and the heated water supplying pipe line 9 of a low-heated water heating circuit are connected to one part of a tank 1, while the pipe line 3 on the inlet side of a solar heat collector and the heated water returning pipe line 11 are connected to another part of a tank 1. That is, the bulkhead 15 having water flow path provided in the tank 1 prevents heat from dispersing which is caused by mixing of circulating water in a surge tank, with fluctuation in output caused by the change in solar radiation being alleviated. With such an arrangement, large amount of collected heat amount can be kept in a surge tank, while large output of cooled water can be supplied from the tank, so that an apparatus of high thermal efficiency and of high controllability can be obtained. |
