| 摘要 |
PROBLEM TO BE SOLVED: To prevent the wasteful use of power from a solar battery by providing a pump using an astable power source as a power source and an opening/ closing control means for controlling the opening/closing of the opening/closing means according to power supplied from the unstable power supply device. SOLUTION: A solar battery 12 is connected to an AC 3-phase motor direct connection magnet pump 5 via a general inverter 14. A solenoid valve 9 is provided in an upper part from a contact point between a second liquid carrying route 2 and a third liquid carrying route 3. A solenoid valve 10 is provided in part closer to a water storing means 6 than the contact point between the second liquid carrying route 2 and the third liquid carrying route 3. A solenoid valve 11 is provided in the midway of a fourth liquid carrying route 4. A water level sensor 21 is provided in the water storing means 6, and a signal therefrom is inputted to a control device 3. The output voltage of the solar battery 12 is calculated from a solar battery output voltage and a current, and the solenoid valves 9 to 11 are controlled for opening/closing according to the water level of the water storing means 6. Thus, the efficient use of power generated by the solar battery is improved. |
