The invention discloses a purging system for a space fuel cell. The purging system comprises a space fuel cell stack, a hydrogen circulation system and an oxygen circulation system, wherein the hydrogen circulation system and the oxygen circulation system are arranged on the two sides of the space fuel cell stack; the system further comprises a liquid water purging system, a gaseous water purging system and a deorbit propulsion system which are arranged below and laterally below the space fuel cell stack. The environment characteristics of ultralow temperature and high vacuum of space are utilized, and under the condition that no air can be utilized in the space, liquid water of a cathode is purged and discharged into the liquid purge water storage tank by forming graded decompression between the liquid purge water storage tank and the cathode plate; part of pore water in the membrane electrode is converted into gaseous purge and discharged into a gaseous purge water storage tank, and the gaseous water is adsorbed and solidified through a low-temperature cold plate. Meanwhile, according to the satellite deorbit propulsion system, reaction product water of a space fuel cell is vaporized and sprayed out to generate milli-Newton-level thrust, and thrust is provided for satellite deorbit.

    本发明公开了一种用于空间燃料电池的吹扫系统,包括空间燃料电池电堆、布设在空间燃料电池电堆两侧的氢气循环系统、氧气循环系统;还包括布设在空间燃料电池电堆下方和侧下方的液态水吹扫系统、气态水吹扫系统、离轨推进系统。本发明利用太空超低温、高真空的环境特点,在太空中没有空气可以利用的情况下,通过在液态吹扫水贮箱与阴极板之间形成分级失压,将阴极的液态水吹扫排入液态吹扫水贮箱;将膜电极中的部分孔隙水转换为气态吹扫排入气态吹扫水贮箱,并通过低温冷板对气态水吸附固化。同时,本发明中的卫星离轨推进系统,利用空间燃料电池的反应产物水,将其汽化喷出,产生毫牛级推力,为卫星离轨提供推力。


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    Titel :

    Purging system for space fuel cell


    Weitere Titelangaben:

    一种用于空间燃料电池的吹扫系统


    Beteiligte:
    LUO JUN (Autor:in) / KANG QI (Autor:in) / DUAN LI (Autor:in) / WU DI (Autor:in) / WANG JIA (Autor:in) / HU LIANG (Autor:in) / ZHANG PU (Autor:in)

    Erscheinungsdatum :

    2024-04-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B64G Raumfahrt , COSMONAUTICS



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