Proton exchange membrane fuel cell gas recirculation system capable of automatically adjusting humidity
The invention discloses a proton exchange membrane fuel cell gas recirculation system capable of automatically adjusting humidity. The proton exchange membrane fuel cell gas recirculation system comprises a proton exchange membrane fuel cell unit, an anode gas recirculation unit, a cathode gas recir...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a proton exchange membrane fuel cell gas recirculation system capable of automatically adjusting humidity. The proton exchange membrane fuel cell gas recirculation system comprises a proton exchange membrane fuel cell unit, an anode gas recirculation unit, a cathode gas recirculation unit and a humidity control unit, the proton exchange membrane fuel cell unit comprises a proton exchange membrane fuel cell and the like; the anode gas recycling unit comprises an ejector, a hydrogen circulating pump, a gas-liquid separator and the like; the cathode gas recirculation unit comprises an ejector, a gas-liquid separator and the like; the humidity control unit comprises a humidifier, a control unit, a water tank and the like; according to the system, oxygen which is not completely reacted at a cathode outlet of the proton exchange membrane fuel cell and hydrogen which is not reacted at an anode outlet are introduced into a gas recirculation system, so that the gas is recycled, the loss of the |
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