Abstract: There is provided a hydrogen gas mixing device, including: a water electrolysis part configured to generate a hydrogen gas and an oxygen gas by electrolysis of water; a mixing gas supply part configured to supply a mixing gas; and a gas mixing part configured to mix the hydrogen gas and the mixing gas, wherein a non-combustible dilution gas is introduced into an oxygen flow part of the water electrolysis part through which the oxygen gas flows.

Abstract: There is provided a hydrogen gas mixing device that includes a hydrogen generation part configured to generate a hydrogen gas; a mixing gas supply part configured to supply a mixing gas; a gas mixing part configured to mix the hydrogen gas and the mixing gas; a dilution gas supply part configured to supply a non-combustible dilution gas; and a valve circuit configured to, at an abnormality occurrence time, dilute the hydrogen gas with the dilution gas by connecting a first path for the hydrogen gas supplied from the hydrogen generation part and a second path for the dilution gas supplied from the dilution gas supply part.

Abstract: Hydrogen and oxygen are generated by water electrolysis. A catalytic combustion type gas sensor is arranged in at least one of a hydrogen path for recovering the hydrogen and an oxygen path for recovering the oxygen. An oxygen concentration in the hydrogen path or a hydrogen concentration in the oxygen path are detected by the catalytic combustion type gas sensor.

Abstract: A mixed gas supply device includes: a hydrogen gas generation unit that includes a hydrogen generator, the hydrogen generator generating hydrogen gas by decomposition of water and supplying the hydrogen gas; a nitrogen gas generation unit that includes a filter, the filter separating nitrogen gas from air and supplying the nitrogen gas; a gas mixing unit that mixes the supplied hydrogen gas and the supplied nitrogen gas and generates mix gas including the hydrogen gas and the nitrogen gas; and a single base on which the hydrogen gas generation unit, the nitrogen gas generation unit, and the gas mixing unit are mounted, the hydrogen gas generation unit, the nitrogen gas generation unit, and the gas mixing unit being integrated. The gas mixing unit supplies the generated mixed gas to outside.

Abstract: There is provided a hydrogen gas mixing device that includes a hydrogen generation part configured to generate a hydrogen gas; a mixing gas supply part configured to supply a mixing gas; a gas mixing part configured to mix the hydrogen gas and the mixing gas; a dilution gas supply part configured to supply a non-combustible dilution gas; and a valve circuit configured to, at an abnormality occurrence time, dilute the hydrogen gas with the dilution gas by connecting a first path for the hydrogen gas supplied from the hydrogen generation part and a second path for the dilution gas supplied from the dilution gas supply part.

Abstract: There is provided a hydrogen gas mixing device, including: a water electrolysis part configured to generate a hydrogen gas and an oxygen gas by electrolysis of water; a mixing gas supply part configured to supply a mixing gas; and a gas mixing part configured to mix the hydrogen gas and the mixing gas, wherein a non-combustible dilution gas is introduced into an oxygen flow part of the water electrolysis part through which the oxygen gas flows.

Abstract: A mixed gas supply device includes: a hydrogen gas generation unit that includes a hydrogen generator, the hydrogen generator generating hydrogen gas by decomposition of water and supplying the hydrogen gas; a nitrogen gas generation unit that includes a filter, the filter separating nitrogen gas from air and supplying the nitrogen gas; a gas mixing unit that mixes the supplied hydrogen gas and the supplied nitrogen gas and generates mix gas including the hydrogen gas and the nitrogen gas; and a single base on which the hydrogen gas generation unit, the nitrogen gas generation unit, and the gas mixing unit are mounted, the hydrogen gas generation unit, the nitrogen gas generation unit, and the gas mixing unit being integrated. The gas mixing unit supplies the generated mixed gas to outside.