| 摘要 |
PURPOSE:To increase the temperature of generated hot air and improve heat conductive efficiency regardless of the bearable temperature of a combustion catalyst, by burning combustible fuel, which is not yet burned, in a honeycomb plate with a high heat-resistance. CONSTITUTION:The cathode exhaust gas 15 and an auxiliary fuel 13 are premixed through an orifice plate 37, fed to a gas introducing chamber 31 through a gas feeding pipe 39, and then fed to a gas combustion chamber 34 through a gas feeding pipe 35, while the feeding ratio is controlled by a valve 50. In the same manner, the anode gas feeding pipe 51 and to the gas combustion chamber 34 through a gas feeding pipe 52. The combustible gas fed to the gas introducing chamber 31 is burned at a combustion catalyst layer 33, whose temperature is maintained at 700-900 deg.C by controlling the amount of the anode exhaust gas through a control valve 54, and the amount of the auxiliary fuel premix through a control valve 53. The combustible component which has not been burned in the combustion chamber is burned perfectly finally at a honeycomb plate 49. Therefore, a clean hot air at a specific temperature without unburned component can be produced, with no restriction of the heat- resistance of the combustion catalyst. |
