The invention relates to the technical field of ship structures, and discloses an unpowered air duct for a ship, which comprises an air duct body, an air cap, a weather-tight cover and a driving assembly, the air cap is sleeved on the top of the air duct body, the air cap is provided with a ventilation opening, and the weather-tight cover is positioned between the air cap and the air duct body; the driving assembly is in transmission connection with the weather-tight cover to drive the weather-tight cover to vertically lift, and the weather-tight cover has an opening state for communicating the air duct body with the ventilation opening and a closing state for sealing the air duct body in the lifting stroke; the air duct further comprises a Bernoulli pipe, a support is arranged on the side, facing the air duct body, of the weather tight cover, the Bernoulli pipe is fixedly connected with the support, the vertical projection of the Bernoulli pipe is located in the air duct body, the Bernoulli pipe is provided with an inlet end close to the ventilation opening and an outlet end away from the ventilation opening, and the inner diameter of the inlet end is larger than that of the outlet end. The airflow forms high-speed airflow when being discharged from the outlet end, the airflow in the air duct body is driven to flow into the air cap, and the natural ventilation effect of a cabin is optimized.

    本发明涉及船舶结构技术领域,公开了一种船舶用无动力风筒,包括风筒本体、风帽、风雨密盖和驱动组件,风帽套装于风筒本体的顶部,风帽具有通风口,风雨密盖位于风帽与风筒本体之间,驱动组件与风雨密盖传动连接以驱动风雨密盖竖向升降,风雨密盖在升降行程中具有使风筒本体与通风口连通的开启状态和密封风筒本体的关闭状态;还包括伯努利管,风雨密盖朝向风筒本体的一侧设有支架,伯努利管与支架固定连接,伯努利管的竖向投影位于风筒本体内,伯努利管具有靠近通风口的进口端和远离通风口的出口端,进口端的内径大于出口端的内径。气流在经由出口端排出时形成高速气流,带动风筒本体内的气流向风帽内流动,优化了舱室的自然通风效果。


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    Title :

    Unpowered air duct for ship


    Additional title:

    一种船舶用无动力风筒


    Contributors:
    ZHANG JUNJIANG (author) / WANG YONGQIANG (author) / LI YONGJIE (author) / HU SHA (author) / CHEN JIANYIN (author)

    Publication date :

    2025-03-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS



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