Fuel cell system residual water purge system and method

CN116314946BActive Publication Date: 2025-09-23SHANGHAI HYDROGEN PROPULSION TECH CO LTD
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Patent Information

Application Number
CN202310316786.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-03-28
Publication Date
2025-09-23
Estimated Expiration
2043-03-28

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Abstract

The present invention discloses a residual water purge system for a fuel cell system. This system significantly optimizes the residual water treatment effect within the fuel cell system by switching between high-pressure airflow purge and slow-flow, high-temperature purge. This system can completely remove water remaining in the fuel cell system after testing, preventing the residual water from freezing in a low-temperature environment and causing adverse effects on the fuel cell system, thereby ensuring the operating performance and stable operation of the fuel cell system. The present invention also discloses a residual water purge method for a fuel cell system that utilizes this residual water purge system.
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Citation Information

Patent Citations

  • Fuel cell cold start system with purging device and control method

    CN110931829A

  • Fuel cell cold starting system and method and vehicle

    CN114142066A

  • Slow purge for improved water removal, freeze durability, purge energy efficiency and voltage degradation due to shutdown / startup cycling

    US20080113240A1