| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel gas supply device capable of inexpensively and surely interrupt supply of a fuel gas having high sulfur component concentration. <P>SOLUTION: Before the sulfur component concentration of a fuel gas rapidly increases, a CPU in a drive device 6 controls closing of a left side solenoid valve 21 provided in a left side supply pipe P1 connected to a left side gas vessel 11 which is a working side gas vessel, and controls opening of a right side solenoid valve 22 provided in a right side supply pipe P2 connected to a right side gas vessel 12 which is a reserve side gas vessel, and thereby, the gas vessel to supply the fuel gas to a fuel gas system is switched from the working side vessel to the reserve side gas vessel. <P>COPYRIGHT: (C)2007,JPO&INPIT |
