| 摘要 |
PROBLEM TO BE SOLVED: To decrease the number of differential pressure regulating valves and attain stability of control at mode switching time and reduction of a cost, by providing the differential pressure regulating valve in a specific position of a fuel cell gas line. SOLUTION: This fuel cell generating set has a fuel cell 1 and a pressure storage vessel 2 of the cell. A cathode line 3c is provided, which has a first/ second shutoff valve 7c, 8c to perform supply of cathode gas and a feed of discharge gas. A device comprises a cathode bypass line 4c merging in the downstream of the second shutoff valve 8c through a third shutoff valve 9c from the upstream of the first shutoff valve 7c, performance maintaining gas line 5c merged in the cathode line 3c through a fourth shutoff valve 10c and an exhaust gas line 6c discharging performance maintaining gas through a fifth shutoff valve 11c. Between an outlet side of the cathode line 3c and a branch point of the exhaust gas line 6c, a differential pressure regulating valve 14c is provided, which controls a differential pressure between an internal pressure of the storage vessel 2 and a pressure of a cathode c. |
