| 摘要 |
PURPOSE:To clean an air pre-heater without stopping the title power generator by, in cleaning the air pre-heater, discharging exhaust air to the atmosphere through a bypass pipe and exhaust air pipe. CONSTITUTION:In the case that a pressure loss in an exhaust air system is increased by corrosive products sticked on the wall surface of an exhaust air passage 106 of an air pre-heater 17, a cutoff valves 24 and 25 provided on a bypass pipe 23 are opened and cutoff valves 21 and 22 are closed. Consequently, the exhaust air is allowed to temporarily flow in the pipe 23, which enables cleaning the corrosive products without stopping a fuel cell power generator. After that, the valves 21 and 22 connected with the air pre-heater 17 is opened and the valves 24 and 25 are closed thus enabling the resetting of allowing the exhaust air to flow in the sir pre-heater 17. |
