| 摘要 |
PROBLEM TO BE SOLVED: To satisfactorily separate hydrogen and liquid water, and at the same time, to surely detect detection deviance of an electrostatic capacity-type water level detector easily and economically without the need to jointly use another sensor.SOLUTION: A water electrolysis system 10 includes a high pressure water electrolysis apparatus 14, a gas-liquid separator 18, an electrostatic capacity-type water level detector 20, a drain apparatus 22, and a controller 24. The gas-liquid separator 18 has a first water storage section 44 having the same cross-sectional area over a prescribed height range, and a second water storage section 46u having a cross-sectional area smaller than the cross sectional area of the first water storage section 44. The controller 24 has a water level control section 54 for controlling the drain apparatus 22 so that the water level fluctuates within the range of the first water storage section 44. |
