| 摘要 |
<p>The invention provides a liquified gas supply device and a method, wherein the device enables the utilization rate of liquified gas filled in a liquified gas container to be increased. The automatic open and closed valve of a gas supply system (A) is opened, and the set pressure of the secondary side of a pressure indication adjusting meter (13a) is adjusted to be a reference set pressure. When gas is supplied by the liquified gas container (11a) of the gas supply system (A), if the liquified gas amount of the liquified gas container (11a) is detected by a gravimeter (12a) to be under a first residual gas amount set value, the set pressure of the secondary side of the pressure indication adjusting meter (13a) is adjusted to be higher than the reference set pressure, and the automatic open and closed valve (14b) of a gas supply system (B) is opened. Gas is supplied by both the gas supply system (A) and the gas supply system (B) in a parallel manner.</p> |
