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    Temporary obturation panel of a passage inside a vessel accessible only through an orifice of smaller size
    1.
    发明授权
    Temporary obturation panel of a passage inside a vessel accessible only through an orifice of smaller size 失效
    容器内通道的临时堵塞面板只能通过较小尺寸的孔口进入

    公开(公告)号：US4600115A

    公开(公告)日：1986-07-15

    申请号：US667192

    申请日：1984-11-01

    申请人： Jean Coussau ,  Claude Lavaleric

    发明人： Jean Coussau ,  Claude Lavaleric

    IPC分类号： F22B37/22 ,  G21C13/06 ,  B65D45/00

    CPC分类号： F22B37/222 ,  G21C13/06 ,  Y02E30/40

    摘要： The invention relates to a temporary sealing obturation panel, inside a vessel accessible only through a manhole, of a passage provided on its periphery with a support collar. It is constituted by: panels articulated by flexible fluid-tight hinges, bordered by lines of latching pins, stiffeners comprising lines of holes conjugate with the lines of pins, a frame in at least two articulated parts, with means for gripping the ends of the panels and the stiffeners against the support collar. The invention is applicable to the closing of primary circuit ducts opening into the water box of a steam generator of a pressurized water nuclear boiler.

    摘要翻译： 本发明涉及一种临时密封堵塞面板，其在通过人孔可访问的容器的内部，通过在其周边上设置有支撑套环的通道。 它由以下构成：由柔性流体密封铰链铰接的面板，由闭锁销的线条界定，加强件包括与销线共轭的孔线，至少两个关节部分中的框架， 面板和抵靠支撑环的加强件。 本发明适用于开放进入加压水核燃机的蒸汽发生器的水箱的主回路管道的关闭。