Patent ID: 7824811

Claim:
A fuel cell discharge-gas processing device that dilutes anode off-gas discharged from a fuel cell anode by mixing the anode off-gas with a diluent gas so as to produce a diluted gas and then discharges mixture of the anode off-gas and the diluent gas, comprising: a dilution container; an anode off-gas introduction path having an anode off-gas emission hole that emits the anode off-gas to inside the dilution container; a diluent gas path through which the diluent gas flows, having drain holes for discharging liquid inside the dilution container; a diluent gas emission hole, communicating to the diluent gas path, that emits the diluent gas flowing through the diluent gas path to inside the dilution container; a mixed gas discharge hole, communicating to the diluent gas path, that discharges mixed gas of the anode off-gas and the diluent gas mixed inside the dilution container more to the downstream side of the diluent gas path than the communication portion with the diluent gas emission hole; at least one partition panel, provided inside the dilution container, that divides the dilution container into an upstream chamber in which the anode off-gas introduction path and the diluent gas emission hole communicate, and a downstream chamber in which the mixed gas discharge hole communicates; and a communication gas path that communicates with the upstream chamber and the downstream chamber, wherein the anode off-gas emission hole is provided so as to emit anode off-gas toward the partition panel; wherein the anode off-gas emission hole and the diluent gas emission hole are set in a mutually non-opposing spatial relationship; and wherein the anode off-gas emission hole is constituted with an opening end facing obliquely upward formed at a distal end of the anode off-gas introduction path inserted into the dilution container, with the diluent gas emission hole facing upward to the opening, in order to prevent the anode off-gas emitted from the anode off-gas emission hole from flowing backward in the diluent gas path through the diluent gas emission hole.