| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a hydrogen fuel supply system capable of preventing a reactor and the like performing a regeneration process from suffering damage from a backfire phenomenon. <P>SOLUTION: A hydrogen fuel supply system 12 for a fuel cell system 10 comprises a reactor 18 which can switch between a reforming process for forming a fuel gas containing hydrogen from a raw material supplied and a regeneration process for increasing the temperature decreased in the reforming process to a temperature which can be used for regeneration by reacting the gas for regeneration supplied, a change-over mechanism 20 for switching between a first state for exhausting the fuel gas while supplying the raw material to the reactor 18 and a second state for exhausting a regeneration exhaust gas while supplying the gas for regeneration to the reactor 18, temperature sensors 76A and 76B for outputting a detection signal when the temperature in the reactor 18 is a temperature at which self-ignition of the regeneration gas may easily occur, and a controller for switching the change-over mechanism 20 so that the first state and the second state are repeated alternately in the reactor 18 and switching the change-over mechanism 20 so that the temperature in the reactor 18 is lowered when the temperature sensors 76A and the like output the detection signal. <P>COPYRIGHT: (C)2007,JPO&INPIT |
