Multi-clearance labyrinth seal design and related process
    3.
    发明授权
    Multi-clearance labyrinth seal design and related process 失效
    多间隙迷宫密封设计及相关工艺

    公开(公告)号:US06394459B1

    公开(公告)日:2002-05-28

    申请号:US09595517

    申请日:2000-06-16

    申请人: Mark Arne Florin

    发明人: Mark Arne Florin

    IPC分类号: F16J15447

    CPC分类号: F16J15/442

    摘要: A packing ring seal assembly for use in a steam turbine for minimizing leakage flow between stationary and rotating steam path parts includes a stationary annular seal ring having a plurality of axially spaced, annular sealing teeth extending in a radial inward direction and adapted to cooperate with sealing surfaces on a rotating component of the steam turbine, wherein radial clearance between the sealing teeth and the sealing surfaces varies by predetermined amounts.

    摘要翻译: 一种用于汽轮机中用于最小化静止和旋转的蒸汽通道部分之间的泄漏流的包装环密封组件包括固定的环形密封环,其具有沿径向向内的方向延伸并且适于与密封件配合的多个轴向隔开的环形密封齿 蒸汽轮机的旋转部件上的表面,其中密封齿和密封表面之间的径向间隙变化预定量。

    Hollow nozzle partition with recessed end caps
    4.
    发明授权
    Hollow nozzle partition with recessed end caps 失效
    中空喷嘴分隔带凹入端盖

    公开(公告)号:US06474944B1

    公开(公告)日:2002-11-05

    申请号:US09845252

    申请日:2001-05-01

    IPC分类号: F10D904

    摘要: A welded hollow partition formed from sheet metal and having a concave side and a convex side, includes end caps to close off the partition cavity. The end caps are recessed into the hollow partition to provide wall strengthening within the hollow partition. Epoxy or other water resistant material can be used adjacent to the end cap and within the partition. A gasket can also be fitted adjacent to the end cap and within the partition to provide a water resistant seal. The hollow partition can be filled with temperature resistant material to further seal the partition against moisture.

    摘要翻译: 由金属板形成并且具有凹面和凸面的焊接中空隔板包括封闭分隔腔的端盖。 端盖凹入中空隔板以在中空隔板内提供壁加强。 环氧树脂或其他防水材料可以在端盖附近和隔板内使用。 垫圈也可以安装在端盖附近并在隔板内,以提供防水密封。 中空隔板可以填充耐温材料,以进一步密封隔板以防潮湿。

    Low leakage snout sealing system
    5.
    发明授权
    Low leakage snout sealing system 失效
    低泄漏口密封系统

    公开(公告)号:US06454270B1

    公开(公告)日:2002-09-24

    申请号:US09737088

    申请日:2000-12-14

    IPC分类号: F16J1508

    CPC分类号: F16J15/28

    摘要: A low leakage sealing system is provided between a steam pipe and a housing comprised of a pair of shells and a nozzle box movable relative to one another. The sealing system includes large and small diameter sealing rings engaging the pipe and shells or nozzle box and a secondary sealing element disposed between the sealing rings and one of the pipe and shells or nozzle box. The sealing elements comprise frustoconical elements having curved end surfaces forming primary seals with the sealing rings and the housing. In another form, the sealing system includes annular carrier elements having radially opening cavities for receiving sealing rings engageable with the pipe and housing, respectively. The carrier elements are axially spaced from a plurality of sealing rings to provide the low leakage sealing system.

    摘要翻译: 在蒸汽管和由一对壳体组成的壳体和可相对于彼此移动的喷嘴箱之间提供低泄漏密封系统。 密封系统包括与管和壳或喷嘴箱接合的大直径和小直径的密封环,以及设置在密封环与管和壳或喷嘴箱中的一个之间的次级密封元件。 密封元件包括具有弯曲端面的截头圆锥元件,其形成具有密封环和壳体的主密封。 在另一种形式中,密封系统包括具有径向开口腔的环形载体元件,用于接收分别与管道和壳体接合的密封环。 载体元件与多个密封环轴向间隔开以提供低泄漏密封系统。