The invention provides a space curved surface type underwater sealing element and a mounting method. The sealing element comprises an enclosure frame, a sealing gasket and a cover plate which are sequentially overlapped, the enclosure frame and the cover plate are respectively provided with a plurality of enclosure frame grooves and cover plate grooves which are mutually sleeved, and the sealing gasket is extruded during installation and fills the enclosure frame grooves and the cover plate grooves, and therefore, a good sealing effect is achieved. Meanwhile, the pressure of lubricating grease at one side of the cover plate on the cover plate is equivalent to or greater than the pressure of seawater at the other side of the cover plate on the cover plate, so that the seawater is prevented from entering the lubricating grease cavity. When the space curved surface type underwater sealing element is mounted, the cover plate is fixed through mounting bolts and nuts, so that the sealing gasket is subjected to the pressure of the cover plate to achieve expected plastic deformation, meanwhile, stress generated in the mounting process of the cover plate is released, then the mounting bolts and the mounting nuts are dismounted one by one, and the fastening screws are mounted one by one; therefore, the stress stability and the overall sealing effect are guaranteed to the maximum extent.

    本发明提供一种空间曲面型水下密封件及安装方法,该密封件包括依次叠置的围框、密封垫圈及盖板,在围框及盖板上分别设有多个相互套设的围框凹槽及盖板凹槽,密封垫圈在安装时会受到挤压并填充围框凹槽及盖板凹槽,从而达到较好的密封效果。同时保证位于盖板一侧的润滑脂对盖板的压力等于或大于位于盖板另一侧的海水对盖板的压力,从而避免海水进入润滑脂腔体中。在安装该空间曲面型水下密封件时,先通过安装螺栓及安装螺母对所述盖板进行固定,使密封垫圈受盖板的压力达到预期的塑性变形,同时释放盖板安装过程中产生的应力,之后再逐个卸下安装螺栓及安装螺母,安装紧固螺钉,从而最大限度地保证受力稳定性和整体密封效果。


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    Title :

    Space curved surface type underwater sealing element and mounting method


    Additional title:

    一种空间曲面型水下密封件及安装方法


    Contributors:
    LI XIAOXU (author) / GAO AIDONG (author) / YAN JIANGUO (author)

    Publication date :

    2021-12-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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