FUEL CELL MODULE

摘要

A fuel cell module includes a first area where an exhaust gas combustor and a start-up combustor are provided, a second area where a reformer and a heat exchanger are provided, a third area where an evaporator is provided, and a condensed water recovery mechanism for recovering condensed water produced by condensation of water vapor contained in the combustion gas by allowing the condensed water to flow from the third area to the second area and then flow from the second area to the first area.

主权项

1. A fuel cell module comprising:
a fuel cell stack formed by stacking a plurality of fuel cells for generating electricity by electrochemical reactions of a fuel gas and an oxygen-containing gas; a reformer for reforming a mixed gas of a raw fuel chiefly containing hydrocarbon and water vapor to produce the fuel gas supplied to the fuel cell stack; an evaporator for evaporating water, and supplying the water vapor to the reformer; a heat exchanger for raising the temperature of the oxygen-containing gas by heat exchange with a combustion gas, and supplying the oxygen-containing gas to the fuel cell stack; an exhaust gas combustor for combusting the fuel gas discharged from the fuel cell stack as a fuel exhaust gas and the oxygen-containing gas discharged from the fuel cell stack as an oxygen-containing exhaust gas to produce the combustion gas; and a start-up combustor for combusting the raw fuel and the oxygen-containing gas to produce the combustion gas, wherein the fuel cell module includes: a first area where the exhaust gas combustor and the start-up combustor are provided; an annular second area around the first area and where the reformer and the heat exchanger are provided; an annular third area around the second area and where the evaporator is provided; and a condensed water recovery mechanism for recovering condensed water produced by condensation of water vapor contained in the combustion gas by causing the condensed water to flow from the third area to the second area and then flow from the second area to the first area.