The invention discloses an aircraft fuel tank inerting system and a fuel tank explosion-proof method. The aircraft fuel tank inerting system comprises a heat exchanger arranged in a fuel tank, and theheat exchanger is connected with a heating system. The fuel tank explosion-proof method comprises the step of heating fuel so that a concentration of fuel steam in the fuel tank is higher than a combustible threshold value. In the invention, fuel in the fuel tank is heated so that concentration of the fuel steam in a gas-phase space on upper portion of the oil tank is increased and located outside combustible limit, and therefore an anti-explosion purpose is achieved; in addition, the temperature of the fuel in the fuel tank is high, preheating power of the fuel before the fuel enters an engine to be combusted can be reduced, and the system and the method are short in inerting time, free of environmental pollution, simple and controllable in system and the like.

    本发明公开了一种飞行器燃油箱惰化系统及燃油箱防爆方法,飞行器燃油箱惰化系统包括置于油箱内的换热器,所述换热器连接有加热系统。燃油箱防爆方法包括给燃油加热的步骤,使油箱内燃油蒸汽浓度高于可燃阀值。本发明通过加热燃油箱中的燃油,使得油箱上部气相空间中燃油蒸汽浓度升高,处于可燃界限之外,从而达到防爆的目的,另外,油箱中燃油的温度较高,也可降低燃油进入发动机燃烧前的预热功率,具有惰化时间短、无环境污染、系统简单可控等优点。


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    Title :

    Aircraft fuel tank inerting system and fuel tank explosion-proof method


    Additional title:

    飞行器燃油箱惰化系统及燃油箱防爆方法


    Contributors:
    SHAO LEI (author) / LI WEI (author) / XING SHENG (author) / WU KUN (author) / XIAO SIYAO (author)

    Publication date :

    2020-10-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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