The invention discloses a helium pressurized liquid hydrogen fuel supply system. An outlet of the helium storage tank is connected with a cold side inlet of the primary heat exchanger, and a cold side outlet of the primary heat exchanger is connected with a helium pressurizing opening of the liquid hydrogen storage tank; a first liquid hydrogen pump is arranged in the liquid hydrogen storage tank, an outlet of the first liquid hydrogen pump is connected with a cold side inlet of a secondary heat exchanger through a liquid hydrogen conveying port of the liquid hydrogen storage tank, a cold side outlet of the secondary heat exchanger is connected with an auxiliary power device and an inlet of an engine heat exchanger, and an outlet of the engine heat exchanger is connected with a combustion chamber. The liquid hydrogen conveying port is further connected with a booster pump inlet; a booster pump outlet is connected with an engine heat exchanger inlet through an engine main pump; a hot side inlet of the primary heat exchanger is connected with a heat source outlet of airborne equipment, a hot side outlet of the primary heat exchanger is connected with a hot side inlet of the secondary heat exchanger, and a hot side outlet of the secondary heat exchanger is connected with a heat source inlet of the airborne equipment. The internal pressure of the liquid hydrogen storage tank is controlled through high-pressure helium and waste heat of airborne equipment, and it is guaranteed that the internal pressure of the liquid hydrogen storage tank is within a proper working range under the full flight envelope.

    本发明公开了一种氦气增压的液氢燃料供给系统。氦气储罐出口与初级换热器的冷边入口连接,初级换热器的冷边出口与液氢储罐的氦气加压口连接;液氢储罐内部设有第一液氢泵,第一液氢泵出口经液氢储罐的液氢输送口与次级换热器冷边入口连接,次级换热器冷边出口分别与辅助动力装置、发动机热交换器的入口连接,发动机热交换器出口与燃烧室连接;液氢输送口还与增压泵入口连接,增压泵出口经发动机主泵与发动机热交换器入口连接;初级换热器热边入口与机载设备热源出口连接,初级换热器热边出口与次级换热器的热边入口连接,次级换热器的热边出口与机载设备热源的入口连接。本发明通过使用高压氦气及机载设备废热来控制液氢储罐的内部压力,保证全飞行包线下液氢储罐内部压力在合适的工作范围内。


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    Title :

    Helium pressurized liquid hydrogen fuel supply system


    Additional title:

    一种氦气增压的液氢燃料供给系统


    Contributors:
    WANG CHENCHEN (author) / BAI WENTAO (author) / YANG CHENYU (author) / PAN JUN (author) / LIU YI (author)

    Publication date :

    2025-02-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F02C Gasturbinenanlagen , GAS-TURBINE PLANTS



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