The invention provides a simple noise reduction device for a ship, and relates to the technical field of noise reduction equipment. The simple noise reduction device for the ship comprises a noise reduction barrel, an air inlet pipe and an exhaust pipe, the air inlet pipe is arranged at the bottom of the noise reduction barrel and used for inputting air into the noise reduction barrel, the exhaust pipe is arranged at the top of the noise reduction barrel and used for exhausting the air in the noise reduction barrel, cover plates are arranged at the top end and the bottom end of the noise reduction barrel, and a plurality of different diameters are fixed in the noise reduction barrel. The different diameters are inversely installed at equal intervals in the axial direction of the silencing barrel according to the airflow direction, and a cavity defined by the adjacent different diameters and the inner wall of the silencing barrel is an airflow reflection area and used for reducing the flow velocity sound energy of airflow. The internal design structure of the silencing barrel is optimized, no absorbing material is needed, silencing and noise reduction of high-pressure airflow can be achieved only through the multiple reducing diameters arranged in the silencing barrel, the structure is simple, construction is convenient, maintenance is easy, and technical support is provided for guaranteeing physical and psychological health of workers on a ship.

    本发明提供了一种船舶简易消音降噪装置,涉及消音降噪设备技术领域。本发明船舶简易消音降噪装置包括消音筒、进气管和排气管,进气管设置于消音筒的底部,用于向消音筒内输入气体,排气管设置于消音筒的顶部,用于排出消音筒内的气体,消音筒的顶端和底端均设置有盖板,消音筒内部固定有多个异径,各异径按照气流方向沿消音筒轴向等间隔倒置安装,相邻异径与消音筒内壁之间所围成的空腔为气流反射区,用于降低气流的流速声能。本发明通过优化消音筒内部设计结构,无需采用吸收材料,仅利用消音筒内部设置的多个异径即可实现对高压气流的消音降噪,结构简单、施工方便且易于维修,为保障船舶上工作人员的身心健康提供了技术支持。


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    Title :

    Simple noise reduction device for ship


    Additional title:

    一种船舶简易消音降噪装置


    Contributors:
    CHEN HE (author) / GUO YINGHUA (author) / ZOU FENGLIN (author) / DENG XIAOBING (author)

    Publication date :

    2024-11-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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