GAS SUPPLY DEVICE, HYDROGEN STATION, AND GAS SUPPLY METHOD

摘要

The objective of the present invention is to suppress a decrease in the gas pressure in a pressure accumulator (30). This gas supply device (10) is equipped with: a first compressor (22) that compresses hydrogen gas; a pressure accumulator that is arranged downstream from the first compressor and supplies hydrogen gas to a dispenser (12) that fills a vehicle (14) with hydrogen gas; a gas flow passage (16) connecting the first compressor, the pressure accumulator, and the dispenser; and a control device (58). The gas flow passage (16) is equipped with: an introduction line (18a) through which the hydrogen gas is introduced into the pressure accumulator; a discharge line (18b) through which the hydrogen gas is discharged from the pressure accumulator; an introduction-side valve (34); and a discharge-side valve (38). The control device (58) is configured so as to be capable of simultaneously placing the introduction-side valve and the discharge-side valve in the open state.