| 摘要 |
PURPOSE:To obtain a solar-heat collecting apparatus, which can obtain the required amount of heat medium quickly, by providing a directional control valve, which controls the output and input of the heat medium, in each of a plurality of heat storing tanks, and controlling the circulation of the heat medium by the start and stop of a pump and switching of the directional control valves. CONSTITUTION:A heat storing device 2 comprises heat storing tanks 2a-2c. Directional control valves A-D, which control the output and input of heat medium to and from the heat storing device, are provided. The circulation of the heat medium to the heat storing device 2 is controlled by a control device 5 based on the start and stop of a pump 3 and the switching of the directional control valves A-D. The control device 5 can circulates the heat medium to the arbitrary heat storing tank, based on the signals from a temperature sensor 6s at the output port side of a heat collector and from temperature sensors 6a-6c at the lower part of the heat storing device 2. |
