公开(公告)号：US6131910A

公开(公告)日：2000-10-17

申请号：US855013

申请日：1997-05-13

申请人： Bharat S. Bagepalli ,  R. Paul Chiu ,  Robert Harold Cromer ,  Gregory Allan Crum ,  Osman Saim Dinc ,  Anthony Holmes Furman ,  Paul Thomas Marks ,  Rudolf Matthias Markytan ,  David Robert Skinner ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe

发明人： Bharat S. Bagepalli ,  R. Paul Chiu ,  Robert Harold Cromer ,  Gregory Allan Crum ,  Osman Saim Dinc ,  Anthony Holmes Furman ,  Paul Thomas Marks ,  Rudolf Matthias Markytan ,  David Robert Skinner ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe

IPC分类号： F01D11/00 ,  F01D11/02 ,  F01D11/08 ,  F01D11/12 ,  F16J15/32 ,  F16J15/44 ,  F16J15/447

CPC分类号： F16J15/442 ,  F01D11/001 ,  F01D11/02 ,  F01D11/08 ,  F01D11/12 ,  F01D11/127 ,  F01D5/225 ,  F01D5/3046 ,  F16J15/3288 ,  F16J15/4472 ,  F05D2240/56 ,  F05D2250/182 ,  F05D2300/6012

摘要： Brush seals are retrofitted into existing turbine labyrinth seal rings to create a fail-safe seal design at locations wherever labyrinth seals are currently used, including interstage shaft seals, rotor end seals, bucket (or blade) tip seals and spill strips. Brush seals, per se, when used in place of labyrinth seals, can result in considerable span reductions of steam turbines, or machines with more turbine stages for a given span. Application to end packings results in the potential elimination of gland sealing/exhauster systems. Brush seal life can be improved by retrofitting brush segments to labyrinth seal segments that are either spring-backed, or use pressure loads to obtain design clearances only after steady state operating conditions are achieved. The brush seals are provided with backing plates shaped like labyrinth teeth, resulting in a fail-safe design. Also, the use of existing labyrinth teeth as bristle backing plates results in a brush seal with diminished susceptibility to hysteresis when compared to conventional brush seal designs. Low friction coatings can also be used to reduce brush seal hysteresis. Incorporation of brush seals in labyrinth seal rings that are either spring-backed or held in place by pressure forces results in extremely low brush seal wear.

摘要翻译： 电刷密封件改装成现有的涡轮迷宫式密封环，以在目前使用迷宫式密封件的位置创建故障安全密封设计，包括级间轴密封件，转子端部密封件，铲斗（或刀片）末端密封件和溢出条。 刷子密封件本身在用于代替迷宫式密封件时，可以导致蒸汽轮机或具有更多涡轮级的机器在给定跨度上的相当大的跨度减少。 对端部密封的应用导致密封/排气系统的潜在消除。 刷子密封寿命可以通过将刷段改装为弹簧密封段，或者使用压力负载仅在达到稳态工作条件之后才能获得设计间隙。 刷子密封件设置有类似迷宫齿的背板，从而形成故障安全设计。 此外，与传统的刷密封设计相比，使用现有的迷宫齿作为刷毛背板导致刷密封，对滞后的敏感性降低。 低摩擦涂层也可用于减少刷子密封滞后。 将刷子密封件装入迷宫式密封环中，弹簧支撑或通过压力力保持在适当位置导致极低的刷密封磨损。

公开(公告)号：US06435513B1

公开(公告)日：2002-08-20

申请号：US09791881

申请日：2001-02-26

申请人： David Robert Skinner ,  Bharat S. Bagepalli ,  Robert Harold Cromer ,  Osman Saim Dinc ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe

发明人： David Robert Skinner ,  Bharat S. Bagepalli ,  Robert Harold Cromer ,  Osman Saim Dinc ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe

IPC分类号： F16J15447

摘要： A brush seal is comprised of arcuate seal segments having ends cut in a radial direction with bristles “canted” at an approximate 45° angle relative to radii of the segments, leaving triangular regions adjacent one end of each segment devoid of bristles at the segment interfaces. The brush seals are retrofit into conventional labyrinth seals with the backing plate for the bristles comprising a labyrinth tooth profile extending fully 360° about the seal, including those areas where bristles are not present. The sealing capacity is not substantially degraded, while affording significant sealing improvements over conventional labyrinth seals. Additionally, when retrofit into labyrinth seals with radial movement, the individual labyrinth seal segments are free to move radially independently of one another during transients.

公开(公告)号：US06257586B1

公开(公告)日：2001-07-10

申请号：US08839737

申请日：1997-04-15

申请人： David Robert Skinner ,  Bharat S. Bagepalli ,  Robert Harold Cromer ,  Osman Saim Dinc ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe

发明人： David Robert Skinner ,  Bharat S. Bagepalli ,  Robert Harold Cromer ,  Osman Saim Dinc ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe

IPC分类号： F16J15447

CPC分类号： F01D11/001 ,  F01D9/023 ,  F01D11/005 ,  F01D11/02 ,  F01D11/025 ,  F01D11/08 ,  F01D11/12 ,  F05D2230/80 ,  F05D2240/56 ,  F05D2300/6012 ,  F16J15/3288 ,  F16J15/442 ,  F16J15/4472

摘要： A brush seal is comprised of arcuate seal segments having ends cut in a radial direction with bristles “canted” at an approximate 45° angle relative to radii of the segments, leaving triangular regions adjacent one end of each segment devoid of bristles at the segment interfaces. The brush seals are retrofit into conventional labyrinth seals with the backing plate for the bristles comprising a labyrinth tooth profile extending fully 360° about the seal, including those areas where bristles are not present. The sealing capacity is not substantially degraded, while affording significant sealing improvements over conventional labyrinth seals. Additionally, when retrofit into labyrinth seals with radial movement, the individual labyrinth seal segments are free to move radially independently of one another during transients.

摘要翻译： 刷密封件包括弧形密封段，其具有在径向方向上切割的端部，其中刷毛“倾斜”相对于段的半径成大约45°的角度，在段接口处留下与缺少刷毛的每个段的一端相邻的三角形区域 。 毛刷密封件被改造成传统的迷宫式密封件，其中用于刷毛的背板包括围绕密封件完全360°延伸的迷宫齿廓，包括不存在刷毛的区域。 密封能力基本上不降低，同时比传统的迷宫式密封件提供显着的密封改进。 另外，当以径向运动方式改装成迷宫式密封件时，各个迷宫式密封段在瞬变过程中可以彼此自由地径向移动。

公开(公告)号：US6105966A

公开(公告)日：2000-08-22

申请号：US131485

申请日：1998-08-10

申请人： Norman Arnold Turnquist ,  Osman Saim Dinc ,  George Ernest Reluzco ,  Robert Harold Cromer ,  David Robert Skinner ,  Christopher Edward Wolfe

发明人： Norman Arnold Turnquist ,  Osman Saim Dinc ,  George Ernest Reluzco ,  Robert Harold Cromer ,  David Robert Skinner ,  Christopher Edward Wolfe

IPC分类号： F01D11/02 ,  F01D1/00 ,  F01D25/24 ,  F16J15/22 ,  F16J15/32 ,  F16J15/447

CPC分类号： F16J15/3288

摘要： A brush seal segment useful, when circumferentially arrayed with other such segments, to seal the gap between a rotor and a surrounding casing of a rotary machine such as a steam turbine. An annular backing plate has a rim radially-inwardly bounding together upstream-facing and downstream-facing surfaces. Canted bristles abut the upstream-facing surface. The rim is designed to allow the bristles to recover from a rotor rub. In one design, the rim acts as a labyrinth-seal tooth and is shaped to deform, under a radial force, longitudinally away from the upstream-facing surface. In another design, the rim has a more-inwardly projecting second portion near a radially-aligned edge, and only this second portion acts as a labyrinth-seal tooth.

摘要翻译： 当用其它这种部分周向排列时，用于密封旋转机器（例如蒸汽轮机）的转子和周围壳体之间的间隙的刷密封段是有用的。 环形背板具有径向向内限定在一起的面向上游和下游的表面的边缘。 鬃毛紧靠着面向上游的表面。 轮辋旨在使刷毛从转子摩擦中恢复。 在一种设计中，轮辋用作迷宫式密封齿并且成形为在径向力作用下纵向远离上游侧表面变形。 在另一种设计中，轮辋在径向对齐的边缘附近具有更向内突出的第二部分，并且仅该第二部分用作迷宫式密封齿。

公开(公告)号：US06367806B1

公开(公告)日：2002-04-09

申请号：US09472914

申请日：1999-12-27

申请人： Norman Arnold Turnquist ,  Osman Saim Dinc ,  George Ernest Reluzco ,  Robert Harold Cromer ,  Martin Francis O'Connor ,  David Robert Skinner ,  Christopher Edward Wolfe

发明人： Norman Arnold Turnquist ,  Osman Saim Dinc ,  George Ernest Reluzco ,  Robert Harold Cromer ,  Martin Francis O'Connor ,  David Robert Skinner ,  Christopher Edward Wolfe

IPC分类号： F16J1544

CPC分类号： F16J15/3288 ,  F16J15/442

摘要： A seal arrangement for a rotary machine, such as a turbine, includes a main seal segment such as a labyrinth seal segment, a brush seal segment disposed in a slot in the main seal segment and having a layer of bristles secured between upstream and downstream plates of the brush seal segment, and at least one passage radially formed through the main seal segment to communicate a balancing pressure from a pressure source located exteriorly of an outer periphery of the main seal segment to a cavity defined in the downstream plate of the brush seal segment at a downstream side of the layer of bristles of the brush seal segment.

摘要翻译： 用于诸如涡轮机的旋转机器的密封装置包括主密封段，例如迷宫式密封段，设置在主密封段中的狭槽中并具有固定在上游和下游板之间的刷毛层的刷密封段 以及至少一个通过主密封段径向形成的通道，以将来自位于主密封段的外周外部的压力源的平衡压力传递到限定在刷密封件的下游板中的空腔 在刷密封段的刷毛层的下游侧的段。

公开(公告)号：US5749584A

公开(公告)日：1998-05-12

申请号：US719667

申请日：1996-09-25

申请人： David Robert Skinner ,  Bharat S. Bagepalli ,  Robert Harold Cromer ,  Osman Saim Dine ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe

发明人： David Robert Skinner ,  Bharat S. Bagepalli ,  Robert Harold Cromer ,  Osman Saim Dine ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe

IPC分类号： F01D9/02 ,  F01D11/00 ,  F01D11/02 ,  F01D11/08 ,  F01D11/12 ,  F16J15/32 ,  F16J15/44 ,  F16J15/447

CPC分类号： F01D11/001 ,  F01D11/005 ,  F01D11/02 ,  F01D11/025 ,  F01D11/08 ,  F01D11/12 ,  F01D9/023 ,  F16J15/3288 ,  F16J15/442 ,  F16J15/4472 ,  F05D2230/80 ,  F05D2240/56 ,  F05D2300/6012

摘要： A brush seal is comprised of arcuate seal segments having ends cut in a radial direction with bristles "canted" at an approximate 45.degree. angle relative to radii of the segments, leaving triangular regions adjacent one end of each segment devoid of bristles at the segment interfaces. The brush seals are retrofit into conventional labyrinth seals with the backing plate for the bristles comprising a labyrinth tooth profile extending fully 360.degree. about the seal, including those areas where bristles are not present. The sealing capacity is not substantially degraded, while affording significant sealing improvements over conventional labyrinth seals. Additionally, when retrofit into labyrinth seals with radial movement, the individual labyrinth seal segments are free to move radially independently of one another during transients.

摘要翻译： 刷密封件包括弧形密封段，其具有在径向方向上切割的端部，其中刷毛“倾斜”相对于段的半径为大约45°角，在段接口处留下与缺少刷毛的每个段的一端相邻的三角形区域 。 毛刷密封件被改造成传统的迷宫式密封件，其中刷子的背板包括一个迷宫齿形轮廓，围绕密封件全面360度延伸，包括不存在刷毛的区域。 密封能力基本上不降低，同时比传统的迷宫式密封件提供显着的密封改进。 另外，当以径向运动方式改装成迷宫式密封件时，各个迷宫式密封段在瞬变过程中可以彼此自由地径向移动。

公开(公告)号：US06250640B1

公开(公告)日：2001-06-26

申请号：US09135334

申请日：1998-08-17

申请人： Christopher Edward Wolfe ,  Norman Arnold Turnquist ,  Robert Harold Cromer ,  Osman Saim Dinc ,  Lawrence Edward Rentz ,  Roger Jordan Carr ,  Joseph Robert Toth ,  Edward A. Dewhurst ,  Frederick George Baily

发明人： Christopher Edward Wolfe ,  Norman Arnold Turnquist ,  Robert Harold Cromer ,  Osman Saim Dinc ,  Lawrence Edward Rentz ,  Roger Jordan Carr ,  Joseph Robert Toth ,  Edward A. Dewhurst ,  Frederick George Baily

IPC分类号： F16J15447

CPC分类号： F16J15/442 ,  F16J15/3288

摘要： A number of sealing segments 20 mounts a brush seal about a rotor. The tips of the brush seal 46 are maintained out of contact with the rotor surface throughout the entire operating range of the turbomachinery. Thus, the increase in temperature resultant from rubs between the bristle tips and the rotor 12 which effectively increase vibrations of the turbomachinery are eliminated. Brush seals are therefore maintained out of contact with the rotor throughout the entire operating range of the turbomachinery and thus do not affect the dynamic behavior of the rotor.

摘要翻译： 许多密封段20围绕转子安装刷子密封件。 在涡轮机械的整个工作范围内，刷密封件46的顶端保持与转子表面不接触。 因此，消除了由刷毛尖端和转子12之间摩擦产生的温度的升高，其有效地增加了涡轮机械的振动。 因此，刷子密封件在涡轮机械的整个操作范围内与转子保持不接触，因此不影响转子的动态特性。

公开(公告)号：US06250641B1

公开(公告)日：2001-06-26

申请号：US09199730

申请日：1998-11-25

申请人： Osman Saim Dinc ,  Norman Arnold Turnquist ,  Robert Harold Cromer ,  George Ernest Reluzco ,  Christopher Edward Wolfe

发明人： Osman Saim Dinc ,  Norman Arnold Turnquist ,  Robert Harold Cromer ,  George Ernest Reluzco ,  Christopher Edward Wolfe

IPC分类号： F16J15447

CPC分类号： F16J15/442 ,  F16J15/3288 ,  F16J15/4472

摘要： Circumferentially extending sealing segments (45) are disposed about a rotary component (16) and have seal face (34) carrying a plurality of labyrinth seal teeth (36) and a brush seal (37). The segments are movable between large and small clearance positions relative to the rotor at start-up and steady-state operating conditions, respectively. In one form, springs (31) bias the segments radially outwardly at start-up and steam pressure displaces the segments to the small clearance positions at steady-state operations. In a further embodiment, springs bias the segment for movement to the small clearance position, the extent of movement being determined by thermal expansion of centering rings mounting the segments to the stationary components.

摘要翻译： 周向延伸的密封段（45）围绕旋转部件（16）设置并且具有承载多个迷宫式密封齿（36）和刷密封件（37）的密封面（34）。 分段在启动和稳态运行条件下分别相对于转子在大间隙位置和小间隙位置之间可移动。 在一种形式中，弹簧（31）在启动时径向向外偏压节段，并且在稳态操作时，蒸汽压将段移动到小间隙位置。 在进一步的实施例中，弹簧偏置该段用于移动到小间隙位置，移动的程度由通过将段安装到固定部件的定心环的热膨胀来确定。

公开(公告)号：US06286211B1

公开(公告)日：2001-09-11

申请号：US09327582

申请日：1999-06-08

申请人： Norman Arnold Turnquist ,  Osman Saim Dinc ,  Frederick George Baily ,  Robert Harold Cromer ,  Lawrence Edward Rentz ,  Christopher Edward Wolfe

发明人： Norman Arnold Turnquist ,  Osman Saim Dinc ,  Frederick George Baily ,  Robert Harold Cromer ,  Lawrence Edward Rentz ,  Christopher Edward Wolfe

IPC分类号： B21D5384

CPC分类号： B23H9/00 ,  F16J15/3288 ,  F16J15/4472 ,  Y10T29/49297 ,  Y10T29/49844

摘要： A method for making a brush-tooth seal, such as a brush-tooth seal which is attachable to a turbine stator, includes obtaining a seal carrier having a groove and having seal teeth and obtaining a brush seal having bristles with tips. The brush seal is engaged in the groove and then attached to the seal carrier. Then, the tips of the bristles of the attached and engaged brush seal are cut, such as with an electric discharge machining (EDM) wire, at a predetermined distance from the longitudinal axis of the seal carrier.

摘要翻译： 一种用于制造刷牙密封件的方法，例如可附接到涡轮机定子的刷牙密封件，包括获得具有凹槽并具有密封齿的密封载体，并获得具有尖端的刷毛的刷密封件。 刷密封件接合在凹槽中，然后连接到密封载体上。 然后，在距离密封载体的纵向轴线预定距离处，例如用放电加工（EDM）线切割附着和接合的刷密封件的刷毛的尖端。

公开(公告)号：US06260269B1

公开(公告)日：2001-07-17

申请号：US09454720

申请日：1999-12-07

申请人： Norman Arnold Turnquist ,  Osman Saim Dinc ,  George Ernest Reluzco ,  Daniel Richard Cornell ,  Robert Harold Cromer ,  Kenneth Elmer Robbins ,  Christopher Edward Wolfe

发明人： Norman Arnold Turnquist ,  Osman Saim Dinc ,  George Ernest Reluzco ,  Daniel Richard Cornell ,  Robert Harold Cromer ,  Kenneth Elmer Robbins ,  Christopher Edward Wolfe

IPC分类号： B23P1500

CPC分类号： F01D11/001 ,  Y10T29/49318 ,  Y10T29/4932 ,  Y10T29/49716

摘要： A method for overhauling a steam turbine to increase its power without increasing its overall length. Existing seal assemblies containing seals other than brush seals are replaced with longitudinally-shorter replacement seal assemblies having only brush seals. An existing turbine section, such as a high-pressure turbine section, is replaced with a longitudinally-longer replacement turbine section having additional stages (i.e., additional rows of rotating buckets or blades).

摘要翻译： 一种用于大修汽轮机以增加其功率而不增加其总长度的方法。 现有的包含刷子密封件以外的密封件的密封组件被仅具有刷密封件的纵向更短的更换密封组件代替。 诸如高压涡轮机部分的现有涡轮机部分被具有附加级（即，附加的旋转铲斗或叶片的行）的纵向更长的更换涡轮部分替换。