The invention belongs to the technical field of hydrogen energy application, and particularly relates to an airplane liquid hydrogen power system. The system comprises a liquid hydrogen storage tank, a liquid hydrogen pump, a heat exchanger I, a heat exchanger II, a hydrogen engine I, a hydrogen engine II, a plurality of stop valves, a safety valve and a pressure reducing valve. The heat exchange capacity of the heat exchanger I is higher than that of the heat exchanger II; according to the system, a liquid hydrogen pump is adopted as liquid hydrogen conveying driving equipment, heat exchangers with different heat exchange capacities are adopted as liquid hydrogen heat exchange devices, only liquid hydrogen stop valves are adopted as system regulation and control valves, and the requirements for hydrogen fuel flow under different working conditions in the operation process of a liquid hydrogen aircraft are fully considered, so that a simple hydrogen conveying process is provided; through a matching mechanism of the liquid hydrogen pump, the heat exchanger and the stop valve, rapid adjustment of the hydrogen fuel conveying flow is finally achieved so as to meet the flow requirements under different operation working conditions, stable and continuous supply of the hydrogen fuel and rapid adjustment of the conveying flow are finally achieved, the system reliability is guaranteed, the regulation and control process is simplified, and the overall heat efficiency of the system is improved.

    本发明属于氢能应用技术领域,具体涉及一种飞机液氢动力系统。所述系统包括液氢储罐、液氢泵、换热器Ⅰ、换热器Ⅱ、氢发动机Ⅰ、氢发动机Ⅱ、若干截止阀、安全阀和减压阀;换热器Ⅰ的换热能力高于换热器Ⅱ;所述系统采用液氢泵作为液氢输送驱动设备,采用不同换热能力的换热器作为液氢换热装置,只采用液氢截止阀作为系统调控阀门,充分考虑液氢飞机运行过程中不同工况下对氢燃料流量需求,提出了一种简洁的输氢流程,通过液氢泵、换热器和截止阀的配合机制,最终实现氢燃料输送流量快速调节,以匹配不同运行工况下的流量需求,最终实现氢燃料的稳定连续供给以及输送流量的快速调节,保障了系统可靠性,简化调控过程,提高系统整体热效率。


    Access

    Download


    Export, share and cite



    Title :

    Airplane liquid hydrogen power system


    Additional title:

    一种飞机液氢动力系统


    Contributors:
    QU JIE (author) / LI SHANFENG (author) / CHEN JING (author) / YU LAN (author) / LI YAN (author) / ZHOU BOWEN (author) / LI YINGHUI (author)

    Publication date :

    2023-04-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



    Hydrogen fuel cell system for airplane

    European Patent Office | 2024

    Free access

    Airplane power device

    ZHENG ZHAOGUO | European Patent Office | 2024

    Free access

    Solid oxide hydrogen fuel cell gas turbine power generation system for airplane

    QIN JIANG / GUO FAFU / JI ZHIXING et al. | European Patent Office | 2021

    Free access

    Ejector, auxiliary power device for airplane and airplane

    WU XIYUN / PAN SHANGNENG / ZHU WEIJUN | European Patent Office | 2023

    Free access

    Auxiliary power system for an airplane and an airplane with such an auxiliary power system

    HOFFJANN CLAUS / ENGEL WOLFGANG | European Patent Office | 2019

    Free access