Method and apparatus for eliminating thermal bowing using brush seals in the diaphragm packing area of steam turbines
    22.
    发明授权
    Method and apparatus for eliminating thermal bowing using brush seals in the diaphragm packing area of steam turbines 有权
    使用蒸汽轮机隔膜包装区域中的刷密封消除热弯的方法和装置

    公开(公告)号:US06589012B2

    公开(公告)日:2003-07-08

    申请号:US09960672

    申请日:2001-09-24

    IPC分类号: F01D1112

    CPC分类号: F01D11/001

    摘要: In a steam turbine, a combined brush and labyrinth seal is provided between a diaphragm web and a sealing surface on a rotatable component radially outwardly of the rotor surface. The contact between the brush seal and sealing surface lies along an axially upstream projecting flange of an annular platform such that heat generated by frictional contact between the bristles and the sealing surface has minimal effect on the rotor surface and hence rotor dynamics. A backup labyrinth seal is provided between the web and platform. Additionally, axially upstream projecting flanges are provided on the downstream buckets and which flanges are spaced radially outwardly of the rotor surface and lie in registration with the diaphragm web. Labyrinth teeth seal between the diaphragm web and the bucket flanges serving as a backup seal.

    摘要翻译: 在蒸汽涡轮机中,组合的刷子和迷宫式密封件设置在隔膜腹板和位于转子表面径向外侧的可旋转部件上的密封表面之间。 刷密封和密封表面之间的接触位于环形平台的轴向上游突出的凸缘处,使得由刷毛和密封表面之间的摩擦接触产生的热量对转子表面和因此的转子动力学具有最小的影响。 在网页和平台之间提供备用迷宫式密封。 此外,轴向上游突出凸缘设置在下游铲斗上,并且哪些凸缘在转子表面的径向外侧间隔开并与隔膜腹板对准。 隔膜腹板和作为备用密封件的铲斗法兰之间的迷宫式牙齿密封。

    Arrangement and method for radially positioning a turbine brush seal
    24.
    发明授权
    Arrangement and method for radially positioning a turbine brush seal 有权
    用于径向定位涡轮刷密封件的布置和方法

    公开(公告)号:US06308958B1

    公开(公告)日:2001-10-30

    申请号:US09556803

    申请日:2000-04-24

    IPC分类号: F16J15447

    摘要: An arrangement and method for radially positioning a brush seal relative to a rotor provides a main seal segment having a slot open toward the rotor and an interior ledge facing away from the rotor, a brush seal segment in the slot and having an exterior shoulder facing toward the rotor and overlying the interior ledge such that the brush seal segment can move radially relative to the main seal segment and rotor and the exterior shoulder can move toward and away from the interior ledge, a shim disposed and establishing a minimum spacing between the interior ledge and the exterior shoulder, and set screws tightened into spaced threaded holes in the main seal segment forcing the exterior shoulder against the shim and to the minimum spacing from the interior ledge so as to prevent radial floating of the brush seal segment in the slot.

    摘要翻译: 用于相对于转子径向定位刷子密封件的布置和方法提供了一个主密封段,其具有朝向转子敞开的狭槽和背离转子的内部凸缘,在该槽中的刷子密封段,并且具有面向 所述转子并且覆盖所述内部凸缘,使得所述刷子密封段可相对于所述主密封段径向移动,并且所述转子和所述外部肩部能够朝向和远离所述内部凸缘移动;垫片,其设置并在所述内部凸缘之间建立最小间隔 和外肩部,并且固定螺丝拧紧到主密封段中的间隔开的螺纹孔中,迫使外肩部抵靠垫片,并且与内部凸缘的间隔最小,以防止刷密封段在槽中的径向浮动。

    SEAL ASSEMBLY FOR A TURBOMACHINE
    27.
    发明申请
    SEAL ASSEMBLY FOR A TURBOMACHINE 有权
    密封组件用于涡轮机

    公开(公告)号:US20130221620A1

    公开(公告)日:2013-08-29

    申请号:US13406947

    申请日:2012-02-28

    IPC分类号: F01D11/02

    CPC分类号: F16J15/344

    摘要: A seal assembly for a turbomachine includes a seal ring rotatable between a first position and a second position and having a plurality of tunnels. Also included is a back ring located adjacent the seal ring and having a plurality of apertures that align with more of the plurality of tunnels of the seal ring when at the second position than at the first position. Further included is a retention piece operably connecting the seal ring and the back ring.

    摘要翻译: 用于涡轮机的密封组件包括可在第一位置和第二位置之间旋转并具有多个隧道的密封环。 还包括位于密封环附近的后环,当与第一位置相比位于第二位置时,具有与密封环的多个通道中的更多孔对准的多个孔。 还包括可操作地连接密封环和后环的保持件。

    HOLLOW ROTOR MOTOR AND SYSTEMS COMPRISING THE SAME
    28.
    发明申请
    HOLLOW ROTOR MOTOR AND SYSTEMS COMPRISING THE SAME 审中-公开
    中空转子电动机和包括它的系统

    公开(公告)号:US20130195695A1

    公开(公告)日:2013-08-01

    申请号:US13408202

    申请日:2012-02-29

    IPC分类号: F04B17/00 H02K9/00

    摘要: In one or more embodiments, the present invention provides electric motors and related systems comprising (a) a motor housing; and (b) a hollow rotor configured to rotate within and be driven by a stator contained within the motor housing; wherein the motor housing is characterized by a largest cross-sectional area of the motor housing, and wherein the hollow rotor defines a flow channel characterized by a smallest cross-sectional area of the flow channel, wherein the smallest cross-sectional area of the flow channel is at least 25% of the largest cross-sectional area of the motor housing, and wherein the hollow rotor has a first end portion defining a fluid inlet, and a second end portion defining a fluid outlet; the fluid inlet, the flow channel and the fluid outlet being configured to allow passage of a fluid from the fluid inlet to the fluid outlet via the flow channel.

    摘要翻译: 在一个或多个实施例中,本发明提供电动机和相关系统,包括(a)电动机壳体; 和(b)中空转子,其构造成在包含在所述电动机壳体内的定子内旋转并由其驱动; 其中所述马达壳体的特征在于所述马达壳体的最大横截面面积,并且其中所述中空转子限定流路,其特征在于所述流动通道的最小横截面面积,其中所述流动的最小横截面面积 通道是电动机壳体的最大横截面面积的至少25%,并且其中中空转子具有限定流体入口的第一端部和限定流体出口的第二端部; 流体入口,流动通道和流体出口构造成允许流体经由流动通道从流体入口流体到流体出口。

    Method and apparatus for compliant plate seals
    29.
    发明授权
    Method and apparatus for compliant plate seals 有权
    柔性板密封的方法和装置

    公开(公告)号:US08382120B2

    公开(公告)日:2013-02-26

    申请号:US12873118

    申请日:2010-08-31

    IPC分类号: F16J15/44

    摘要: A seal assembly for a turbomachine includes a plurality of compliant plate members attached to an interior surface of a stationary housing. The compliant plate members define a sealing ring between the stationary housing and a rotor. Each of the compliant plate members comprises at least one slot therein. The seal assembly further includes at least one arcuate static ring attached to the interior surface of the stationary housing and extending radially into the at least one slot in the compliant plate members. Each of the at least one static ring extends circumferentially through and between a plurality of the compliant plate members. Finally, the seal assembly includes a vibration damper disposed adjacent to or provided on the plurality of compliant plate members. The vibration damper is configured to dampen vibration of the plurality of compliant plate members.

    摘要翻译: 用于涡轮机的密封组件包括附接到固定壳体的内表面的多个柔性板构件。 柔性板构件在固定壳体和转子之间限定密封环。 每个柔性板构件在其中包括至少一个槽。 密封组件还包括附接到固定壳体的内表面并且径向延伸到柔性板构件中的至少一个槽中的至少一个弓形静环。 所述至少一个静止环中的每一个周向延伸穿过并且在多个柔性板构件之间。 最后,密封组件包括邻近或设置在多个柔性板构件上的振动阻尼器。 振动阻尼器构造成抑制多个柔性板构件的振动。