| 摘要 |
PURPOSE: A gas supply system is provided to make possible a continuous gas supply without stopping the operation of related devices needing gas and to use a space efficiently according to the unnecessary of an additional gas container not in use by building a system to supply gas complementarily with another gas container used in another space. CONSTITUTION: A complementary gas supply system has two additional related units(31,41) needing gas. A gas container(32) placed in a gas container box(30) supplies gas to the unit(31) via a pipe(35) and another gas container(42) placed in another gas container box(40) supplies gas individually to the other unit(41) via another pipe(45). Herein, two valves(33,43) are needed for the separation of the gas containers from the pipes. When the gas container(42) is needed to be replaced, a certain valve(43) connected to the gas container is locked, and connection valves(36,37) are opened. Thereby, the gas in the other gas container(32) is supplied to the units simultaneously via a pipe(38).
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