利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

27 条记录 (耗时 0.034 秒)

    Method and apparatus for eliminating thermal bowing using brush seals in the diaphragm packing area of steam turbines
    1.
    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

    申请人： Mark Edward Burnett ,  Christopher Edward Wolfe ,  Frederick George Baily ,  Norman Arnold Turnquist ,  Bruce William Brisson ,  David Alan Caruso

    发明人： Mark Edward Burnett ,  Christopher Edward Wolfe ,  Frederick George Baily ,  Norman Arnold Turnquist ,  Bruce William Brisson ,  David Alan Caruso

    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。

    Bucket dovetail bridge member and method for eliminating thermal bowing of steam turbine rotors
    3.
    发明授权
    Bucket dovetail bridge member and method for eliminating thermal bowing of steam turbine rotors 失效
    铲斗燕尾桥构件及消除汽轮机转子热弯的方法

    公开(公告)号：US06558118B1

    公开(公告)日：2003-05-06

    申请号：US09985183

    申请日：2001-11-01

    申请人： Bruce William Brisson ,  Mark Edward Burnett ,  Frederick George Baily ,  David Alan Caruso ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe

    发明人： Bruce William Brisson ,  Mark Edward Burnett ,  Frederick George Baily ,  David Alan Caruso ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe

    IPC分类号： F01D1100

    CPC分类号： F01D11/003 ,  F01D11/02 ,  F05D2240/56

    摘要： A steam turbine has a rotor mounting axially spaced rotor wheels having male dovetails for mounting a plurality of axially spaced buckets having female dovetails. A plurality of arcuate bridging members extend axially between the axially adjacent bucket dovetails at locations spaced radially outwardly of the surface of the rotor shaft. A diaphragm in radial opposition to the bridging member mounts a brush seal having bristles engaging the bridging member. The bridging member carries backup labyrinth seal teeth for sealing with the diaphragm. The friction generated by contact between the brush seal bristles and bridging members lies radially outwardly of the rotor whereby non-uniform distribution of heat about the rotor surface due to frictional contact with the brush seal is avoided, with consequent avoidance of rotor bowing.

    摘要翻译： 蒸汽轮机具有转子安装轴向间隔开的转子轮，其具有用于安装多个具有凹形燕尾的轴向间隔开的桶的阳形燕尾。 多个弓形桥接构件在轴向相邻的铲斗燕尾形之间沿与转子轴的表面径向向外间隔开的位置轴向延伸。 与桥接构件径向相对的隔膜安装有具有接合桥接构件的刷毛的刷密封。 桥接构件带有用于与隔膜密封的备用迷宫式密封齿。 由刷子密封刷毛和桥接构件之间的接触产生的摩擦力位于转子的径向外侧，从而避免了由于与刷子密封件的摩擦接触而导致转子表面的不均匀分布，从而避免了转子弯曲。

    Brush seal arrangement for high pressure applications
    4.
    发明授权
    Brush seal arrangement for high pressure applications 有权
    用于高压应用的刷子密封装置

    公开(公告)号：US06790001B2

    公开(公告)日：2004-09-14

    申请号：US10301586

    申请日：2002-11-22

    申请人： Norman Arnold Turnquist ,  Mark Edward Burnett ,  Christopher Edward Wolfe ,  Frederick George Baily ,  Daniel Richard Cornell

    发明人： Norman Arnold Turnquist ,  Mark Edward Burnett ,  Christopher Edward Wolfe ,  Frederick George Baily ,  Daniel Richard Cornell

    IPC分类号： F01D1100

    CPC分类号： F01D11/025 ,  F01D11/02 ,  F05D2240/56

    摘要： In a steam turbine high pressure end seal region, brush seals are provided between first and second pressure regions having a pressure drop in excess of the sealing capacity of an individual brush seal. To use brush seals between the first and second regions, one or more intermediate pressure regions are maintained at a substantially fixed predetermined pressure between the first and second pressure regions. Brush seals are interposed between adjacent pressure regions whereby the pressure drop between adjacent pressure regions is within the sealing capacity of the individual brush seal disposed between the adjacent pressure regions.

    摘要翻译： 在汽轮机高压端部密封区域中，刷密封件设置在第一压力区域和第二压力区域之间，压力区域的压降超过单个刷子密封件的密封能力。 为了在第一和第二区域之间使用刷子密封，一个或多个中间压力区域保持在第一和第二压力区域之间基本上固定的预定压力。 刷子密封件插入在相邻的压力区域之间，由此相邻压力区域之间的压降在设置在相邻的压力区域之间的单个刷子密封件的密封能力内。

    Bucket tip brush seals in steam turbines and methods of installation
    7.
    发明授权
    Bucket tip brush seals in steam turbines and methods of installation 失效
    蒸汽涡轮机中的铲头刷密封件和安装方法

    公开(公告)号：US06431827B1

    公开(公告)日：2002-08-13

    申请号：US09741742

    申请日：2000-12-21

    申请人： Christopher Edward Wolfe ,  Norman Arnold Turnquist ,  Frederick George Baily ,  David Robert Skinner

    发明人： Christopher Edward Wolfe ,  Norman Arnold Turnquist ,  Frederick George Baily ,  David Robert Skinner

    IPC分类号： F01D1108

    CPC分类号： F16J15/3288 ,  F01D11/127 ,  F05D2240/56 ,  Y10T29/49297

    摘要： A diaphragm has an annular groove formed of deep and shallow grooves with the deep groove opening into the shallow groove. A combination spill strip/brush seal is disposed in the groove. The brush seal comprises a pair of flexible bars secured to the proximal ends of the brush bristles by welding and is received in the shallow groove and a recess in an axial face of the spill strip. The spill strip has base portions extending into the deep groove. The combination spill strip/brush seal is secured in the annular groove by peening material of the diaphragm into the spill strip/brush seal combination. The brush seal may be used with different diameters of spill strips and diaphragm grooves.

    摘要翻译： 隔膜具有由深而浅的槽形成的环形槽，深槽通向浅槽。 组合式溢流条/刷密封件设置在凹槽中。 刷子密封件包括通过焊接固定到刷毛的近端的一对柔性杆，并且容纳在浅槽中和在溢出条的轴向面中的凹部。 溢出带具有延伸到深槽中的基部。 通过将隔膜的材料喷丸到溢流带/刷子密封组合中，组合的溢出带/刷子密封件固定在环形槽中。 刷密封件可以与不同直径的溢流带和隔膜槽一起使用。