The invention relates to a water injection nozzle for a fuel oil icing test. A low-temperature main oil way, a normal-temperature water way and a normal-temperature auxiliary oil way are arranged in the nozzle. Part of the normal-temperature water way is located in the low-temperature main oil way and wrapped by the normal-temperature auxiliary oil way The normal-temperature water path consists of a normal-temperature water path rotational flow cavity connecting port, a normal-temperature water path rotational flow cavity lead-in hole, a normal-temperature water path rotational flow cavity, a normal-temperature water path transition hole and a normal-temperature water path nozzle hole which are connected in sequence; the normal-temperature water path nozzle hole is located in the middle of the low-temperature main oil path, and the normal-temperature auxiliary oil path is composed of a normal-temperature auxiliary oil path inlet end, a normal-temperature auxiliary oil path transition hole and a normal-temperature auxiliary oil path bent hole which are sequentially connected. A nested nozzle structure is utilized, a temperature isolation zone is established between low-temperature oil and normal-temperature water through normal-temperature oil provided by the auxiliary oil way, temperature protection is achieved for the normal-temperature water injected into the low-temperature fuel oil environment, the local water temperature of an outlet of the nozzle is kept above the freezing point, the injected normal-temperature water is prevented from freezing too early to block the nozzle, and the service life of the nozzle is prolonged. Water distribution can be directly carried out on low-temperature fuel oil.

    本发明涉及一种用于燃油结冰试验的注水喷嘴,该喷嘴内设有低温主油路、常温水路、常温副油路;部分常温水路位于低温主油路中并由常温副油路包裹;常温水路由依次连接的常温水路旋流腔连接端口、常温水路旋流腔导入孔、常温水路旋流腔、常温水路过渡孔和常温水路喷嘴孔组成;常温水路喷嘴孔位于低温主油路中间,常温副油路由依次连接的常温副油路入口端、常温副油路过渡孔、常温副油路弯孔。本发明利用嵌套喷嘴构型,通过副油路提供的常温油在低温油和常温水之间建立了温度隔离带,对注入低温燃油环境的常温水实现温度保护,使喷嘴出口局部水温维持在结冰点以上,防止注入的常温水过早结冰堵塞喷嘴,能够实现直接对低温燃油进行配水。


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    Title :

    Water injection nozzle for fuel icing test


    Additional title:

    一种用于燃油结冰试验的注水喷嘴


    Contributors:
    QIN QIHAO (author) / WEN YUANJIANG (author) / YOU HAOLIANG (author)

    Publication date :

    2023-05-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B05B Sprühvorrichtungen , SPRAYING APPARATUS / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES



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