| 摘要 |
PURPOSE:To heat water and increase the temperature thereof to supply hot-water by a method wherein cold water is circulated between a heat accumulating tank and a heat collector by an automatic water feeding device. CONSTITUTION:The cold water, flowed out of the opening of a water feeding pipe 20 by the operation of a foot valve 21 by a predetermined amount, overflows from the lower notched opening 19 of a hollow column body 18 and enters into the heat collecting pipes 6, 6... through a circulating pipe 10 and a connecting pipe 7, thereafter, heat exchange between a heat accumulating body or asphalt 4 is effected and the water flows into the heat accumulating tank 13 through the connecting pipe 8 and the circulating pipe 11 under being heated. The heat accumulating body or the asphalt 4 receives not only the solar heat direction on the surface thereof but also the reflected solar heat by a reflecting plate 14, capable of changing the angle of inclination thereof and installed in the device to increase the amount of collected heat and whereby the heat collecting efficiency of the device may be improved remarkably in winter especially. The water, thus heated, enters into the heat accumulating tank 15 through the connecting pipe 8 and the circulating pipe 11 and returns into the heat collector 9 again, thus the temperature thereof is increased under repeating circulation while hot-water may be supplied to necessary places through a hot-water supplying pipe 2 when it is used. |
