| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell device 1 which prevents oxidation of electrodes 4, 5 in a fuel cell main body 2, and does not cause damage to the electrodes 3, 4 or an electrolyte 3 as a result of change in pressure in the fuel cell main body 2.SOLUTION: An electrolyte 3, an anode 5, and a cathode 4 are provided in a fuel cell main body 2. Power is generated by supplying fuel and air to the fuel cell main body 2. A pair of sealing valves 51, 52 provided in an anode line 50 as a tube in which the fuel flows, and configured to seal the fuel by interrupting a flow of the fuel via an inlet side via which the fuel flows into the fuel cell main body 2 and a flow of the fuel via an outlet side via which the fuel flows out of the fuel cell main body 2 is provided. A pressure accumulator/discharger 7 configured to adjust a fuel pressure of the fuel sealed by the sealing valves 51, 52 is provided. When power generation is stopped, fuel formed of a reducing gas is sealed so as to prevent oxidation of the anode 5. Decrease in fuel pressure of the sealed fuel due to decrease in temperature is adjusted by the accumulator/pressure discharger 7, and thereby damage to the electrodes 4, 5 or the electrolyte 3 is suppressed. |
