HYDROGEN GENERATOR, FUEL CELL POWER GENERATION SYSTEM INCLUDING THE SAME, AND METHOD FOR STOPPING THE OPERATION OF HYDROGEN GENERATOR

摘要

A hydrogen generator of the present invention includes: a reformer (20) configured to generate a hydrogen-containing gas by a reforming reaction between a raw material and water and include a reforming catalyst; a reforming temperature detector (18) configured to detect a temperature of the reforming catalyst; a heater (2) configured to combust at least a part of the hydrogen-containing gas to supply heat necessary for the reforming reaction to the reformer (20); a combustion detector (22) configured to detect a combustion state of the heater (2); a raw material supplier (4) configured to supply the raw material; a water supplier (3) configured to supply the water; and an operation controller (16). When stopping the hydrogen generator, the operation controller (16) causes the raw material supplier (4) to stop operating, the operation controller (16) causes the water supplier (3) to stop operating in a case where the combustion detector (22) detects extinction of flame, and the operation controller (16) causes the raw material supplier (4) to start operating to supply the raw material to the hydrogen generator in a case where the reforming temperature detector (18) detects a temperature equal to or lower than a reform replacement reference temperature.