The invention provides a marine invisible ventilation opening which is of an inverted trapezoidal structure, inclines downwards and comprises a shell, a flow guide plate and a pneumatic closing device. A U-shaped air channel is formed in the shell, and air enters the shell through the air opening, then enters the shell through a section of U-shaped channel and then is divided into all the ventilation surrounding wells or is discharged through the U-shaped channel after being converged from the ventilation surrounding wells. The U-shaped channel is separated by a guide plate and is close to the outlet; a pneumatic closing device is arranged above the flow guide plate and is used for cutting off the air port under a fire-fighting working condition; the inner side and the outer side of the shell are both coated with stealth materials, and the radar scattering sectional area of the channel is reduced. The design is ingenious, a blind window is not arranged at the opening, the flowing resistance is greatly reduced, meanwhile, in order to reduce the radar scattering sectional area caused by the blind window, the inverted trapezoidal cross section is selected for the ventilation opening, the air opening inclines downwards, and the right-angle area of the incident direction of the detection radar is reduced.

    本发明提供一种船用隐身通风口,风口结构为倒梯形且向下倾斜,包括壳体、导流板和气动关闭装置;所述壳体内形成一个U型风道,空气通过风口进入壳体后,经过一段U型通道进入内部再分流至各个通风围井或者从通风围井汇合后再通过U型通道排出;所述U型通道由导流板隔开,在接近出口处;所述导流板上方安装气动关闭装置,用于在消防工况下切断风口;所述壳体内外侧均涂有隐身材料,降低通道的雷达散射截面积。本发明设计巧妙,开口处不设置百叶窗,大大减少了流动阻力,同时为了减少因此而带来的雷达散射截面积,通风开口选择了倒梯形截面,且该风口向下倾斜,减少侦测雷达入射方向成直角的面积。


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    Title :

    Marine invisible ventilation opening


    Additional title:

    一种船用隐身通风口


    Contributors:
    XU WEITAI (author) / CHENG XIWEN (author) / HUANG WUGANG (author) / MENG ZHAONAN (author) / LIN PENG (author)

    Publication date :

    2024-01-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS



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