| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system in which safety of a fuel cell during maintenance is improved. <P>SOLUTION: During maintenance, a maintenance worker removes connection of a connection member 100 and divides an oxidation gas supply tube 35 and removes a connection of a connection member 120 and divides an oxidation gas exhaust tune 36 and connects a male coupling 101 of the connection member 100 of the oxidation gas supply tube 35a with a groove portion 124 of the connection member 120 of the oxidation gas exhaust tube 36a. The oxidation gas supply tube 35a and the oxidation gas exhaust tune 36a are connected and sealed to shut down an inflow of new oxidation gas to a fuel cell 10. Accordingly, an oxidation gas concentration remaining in the fuel cell can be reduced quickly, and a voltage of the fuel cell can be reduced efficiently and the safety of the worker can be enhanced at a time of maintenance of a fuel cell system. <P>COPYRIGHT: (C)2009,JPO&INPIT |
