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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.
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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。
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3.发明授权
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
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。
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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
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。
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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。
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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。
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公开(公告)号：US6105967A
公开(公告)日：2000-08-22
申请号：US369325
申请日：1999-08-06
申请人： Norman Arnold Turnquist , Robert Harold Cromer , Ronald John Placek , David Robert Skinner , Christopher Edward Wolfe
发明人： Norman Arnold Turnquist , Robert Harold Cromer , Ronald John Placek , David Robert Skinner , Christopher Edward Wolfe
IPC分类号： F16J15/32 , F16J15/44 , F16J15/447
CPC分类号： F16J15/4472 , F16J15/3288 , F16J15/441
摘要： A combined labyrinth/brush seal is provided in a seal between rotating and stationary components. The seal includes a plurality of arcuate sealing segments, each having one or more labyrinth teeth extending radially toward the surface of the rotating component. As original equipment or retrofit, a brush seal is provided among the labyrinth teeth in a slot formed in the sealing face of the seal segment. In one form, backing and/or forward plates for the brush seal have a tongue extending into an axially extending groove of the seal segments to prevent relative radial movement of the brush seal and seal ring segments. The end faces of the brush seal and seal ring segments may be bored and filled with weld material to prevent relative circumferential movement. Where a single radially extending slot is provided in the sealing ring segment, the brush seal may be stitch-welded to the seal ring segment along opposite sides of the brush seal.
摘要翻译： 在旋转和静止部件之间的密封中提供组合的迷宫/刷子密封。 密封件包括多个弧形密封段，每个弧形密封段具有一个或多个迷宫齿，径向朝着旋转部件的表面延伸。 作为原始设备或改造，在形成在密封段的密封面中的槽中的迷宫齿之间设置有刷密封件。 在一种形式中，刷子密封件的背板和/或前板具有延伸到密封段的轴向延伸凹槽中的舌部，以防止刷密封件和密封环段的相对径向运动。 刷密封圈和密封环段的端面可以钻孔并填充焊缝材料以防止相对的周向移动。 在密封环段中设置单个径向延伸槽的情况下，刷密封件可以沿着刷密封件的相对侧被缝合到密封环段。
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公开(公告)号：US6045134A
公开(公告)日：2000-04-04
申请号：US18376
申请日：1998-02-04
申请人： Norman Arnold Turnquist , Robert Harold Cromer , Ronald John Placek , David Robert Skinner , Christopher Edward Wolfe
发明人： Norman Arnold Turnquist , Robert Harold Cromer , Ronald John Placek , David Robert Skinner , Christopher Edward Wolfe
IPC分类号： F16J15/32 , F16J15/44 , F16J15/447
CPC分类号： F16J15/4472 , F16J15/3288 , F16J15/441
摘要： A combined labyrinth/brush seal is provided in a seal between rotating and stationary components. The seal includes a plurality of arcuate sealing segments, each having one or more labyrinth teeth extending radially toward the surface of the rotating component. As original equipment or retrofit, a brush seal is provided among the labyrinth teeth in a slot formed in the sealing face of the seal segment. In one form, backing and/or forward plates for the brush seal have a tongue extending into an axially extending groove of the seal segments to prevent relative radial movement of the brush seal and seal ring segments. The end faces of the brush seal and seal ring segments may be bored and filled with weld material to prevent relative circumferential movement. Where a single radially extending slot is provided in the sealing ring segment, the brush seal may be stitch-welded to the seal ring segment along opposite sides of the brush seal.
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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。
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公开(公告)号：US6030175A
公开(公告)日：2000-02-29
申请号：US159196
申请日：1998-09-23
CPC分类号： F16J15/442 , F16J15/3288 , F16J15/4472
摘要： A hybrid seal segment and a rotary machine (such as a steam or gas turbine) containing such hybrid seal segment. The machine has a rotor, a stator casing, and the hybrid seal segment. The annular hybrid seal segment has a circumferentially-extending channel between axially-spaced-apart first and second labyrinth-seal segments which are attached to a radially-outwardly located mounting block which is circumferentially offset from the labyrinth-seal segments. A brush-seal segment is positioned in the channel.
摘要翻译： 混合密封段和包含这种混合密封段的旋转机器（例如蒸气或燃气轮机）。 该机器具有转子，定子壳体和混合密封段。 环形混合密封段在轴向间隔开的第一和第二迷宫密封段之间具有周向延伸的通道，其连接到径向向外定位的安装块，该安装块沿迷宫密封段周向偏移。 刷密封段位于通道中。
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