| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas supplying method for supplying boosted gas through a high-pressure gas holder and a low-pressure gas holder. SOLUTION: A flow control valve for gas is provided on the inlet side of a low-pressure gas holder. When pressure of the low-pressure gas holder is less than a lower limit set value, the flow control valve is opened to fill gas. When pressure of the low-pressure gas holder is more than pressure of a high- pressure gas holder and also when pressure of the low-pressure gas holder is not less than the lower limit set value, the flow control valve is opened to supply gas of the low-pressure gas holder to the high-pressure gas holder. When pressure of the low-pressure gas holder is not more than pressure of high-pressure gas holder and also when pressure of the low-pressure gas holder is not less than the lower limit set value, the flow control valve is closed to feed gas to only a low-pressure gas using facility.
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