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1.发明授权Composite tubular woven seal for steam turbine diaphragm horizontal joint interfaces 失效用于蒸汽轮机隔膜水平接头接口的复合管状编织密封公开(公告)号：US06742988B2
公开(公告)日：2004-06-01
申请号：US10283200
申请日：2002-10-30
申请人： Kamlesh Mundra , John Cao , Daniel R. Predmore , Abdul-Azeez Mohammed-Fakir , Gene Palmer , Jonathan Munshi
发明人： Kamlesh Mundra , John Cao , Daniel R. Predmore , Abdul-Azeez Mohammed-Fakir , Gene Palmer , Jonathan Munshi
IPC分类号： F01D904
CPC分类号： F01D25/243 , F01D11/005 , F01D25/26 , F16J15/0812
摘要： Upper and lower diaphragms of a steam turbine have mating flanges forming a horizontal midline joint interface. Each flange has a groove which registers with a corresponding groove in the opposite flange. A composite woven tubular seal is provided in the mating grooves. The seal comprises an inner woven metal core surrounded by an annular silica fiber layer, in turn surrounded by a metal foil with an outer protective covering of a braided stainless steel. Upon joining the diaphragms to one another, the compliant seal generally conforms to a maximum to the shape of the grooves, maintaining a seal between the diaphragms along the horizontal midline joint.
摘要翻译： 蒸汽轮机的上隔膜和下隔膜具有形成水平中线接合界面的配合凸缘。 每个凸缘具有与相对的凸缘中的相应凹槽对准的凹槽。 复合编织管状密封件设置在配合凹槽中。 密封件包括由环形二氧化硅纤维层包围的内部编织金属芯，然后由具有编织不锈钢的外部保护层的金属箔包围。 在将隔膜彼此接合时，顺应性密封件通常符合凹槽的形状的最大值，沿着水平中线接头保持隔膜之间的密封。
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公开(公告)号：US06752592B2
公开(公告)日：2004-06-22
申请号：US10029003
申请日：2001-12-28
IPC分类号： F01D904
CPC分类号： F16J15/0887 , F01D11/005 , F02C7/28
摘要： In a gas turbine having a chordal hinge seal between an inner rail of each nozzle segment and an annular axially facing sealing surface of a nozzle support ring, a supplemental seal is disposed between the support ring and inner bands of the nozzle segments on a lower pressure side of the chordal hinge seals. To minimize or prevent leakage flow across the chordal hinge seals, a generally U-shaped supplemental seal having reversely folded U-shaped marginal portions is received in a cavity formed in the axially extending sealing surface of the inner rail of the nozzle segment. At operating conditions, the marginal portions seal against the base of the cavity and the annular sealing surface of the nozzle support ring to prevent leakage flow past the chordal hinge seal from entering the hot gas path. To install the supplemental seal, the seal is first compressed and maintained in a compressed state by applying one or more wraps about the supplemental seal or an epoxy to secure the seal when compressed in the cavity. At operating temperatures, the retention means releases the seal to engage marginal portions against opposite sealing surfaces of the nozzle segment and support ring.
摘要翻译： 在具有在每个喷嘴段的内轨道和喷嘴支撑环的环形轴向面对的密封表面之间具有弦状铰链密封件的燃气涡轮机中，在较低压力下在支撑环和喷嘴段的内带之间设置补充密封 侧面铰链密封。 为了最小化或防止跨弦铰链密封件的泄漏流动，具有反向折叠的U形边缘部分的大致U形补充密封件容纳在形成在喷嘴段的内轨道的轴向延伸的密封表面中的空腔中。 在操作条件下，边缘部分密封在空腔的底部和喷嘴支撑环的环形密封表面上，以防止通过弦状铰链密封件的泄漏流进入热气路径。 为了安装补充密封件，首先将密封件压缩并保持在压缩状态，通过在补充密封件或环氧树脂周围施加一个或多个包装件以在压缩在空腔中时固定密封件。 在操作温度下，保持装置释放密封件以将边缘部分接合在喷嘴段和支撑环的相对的密封表面上。
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公开(公告)号：US06609886B2
公开(公告)日：2003-08-26
申请号：US10029216
申请日：2001-12-28
申请人： Mahmut Faruk Aksit , Ahmad Safi , Abdul-Azeez Mohammed-Fakir , Srikanth Vedantam , Ning Fang , Gayle Hobbs Goetze , Brian Peter Arness , John Ellington Greene , Wei-Ming Chi
发明人： Mahmut Faruk Aksit , Ahmad Safi , Abdul-Azeez Mohammed-Fakir , Srikanth Vedantam , Ning Fang , Gayle Hobbs Goetze , Brian Peter Arness , John Ellington Greene , Wei-Ming Chi
IPC分类号： F01D902
CPC分类号： F16J15/0887 , F01D11/005 , F16J15/0812
摘要： A compliant woven tubular seal is provided in an arcuate cavity opening through an axial face of a plurality of shroud segments in opposition to a nozzle retaining ring. The annular composite tubular woven compliant seal includes a stainless steel inner metal core surrounded by an annular layer of silica fiber. Surrounding the silica fiber is a metal foil which prevents flow past the supplemental seal. An outer wear-resistant braiding serves as a protective covering and wear surface.
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公开(公告)号：US06394255B1
公开(公告)日：2002-05-28
申请号：US09756631
申请日：2001-01-09
IPC分类号： F16D1104
CPC分类号： F16D63/006 , F16D2121/14 , F16D2125/66
摘要： A rotary motion limiting arrangement includes a stationary component, a rotating component rotatable in opposite directions relative thereto, a pair of stops movably mounted on the stationary component for establishing a first set of opposite limits to rotational movement of the rotating component, and a link fastened to the stops such that, as one stop is moved between extended and retracted positions across and outside of a path of revolution of a lug on the rotating component the other stop is moved oppositely between retracted and extended positions. A braking mechanism is positioned, upon electrical energization, to halt rotation of the rotating component. Switches situated adjacent to the link and rotating component are electrically connected to the braking mechanism for establishing a second set of opposite limits to rotational movement of the rotating component within the limits of the first set.
摘要翻译： 旋转运动限制装置包括固定部件，可相对于其相反方向旋转的旋转部件，可移动地安装在固定部件上的一对止动件，用于建立与旋转部件的旋转运动相反的第一组限制，以及连接件 使得当一个止动件在延伸和缩回位置之间跨越旋转部件上的凸耳的转动路径和外部移动时，另一个止动件在缩回位置和延伸位置之间相对移动。 在电通电时，制动机构被定位以停止旋转部件的旋转。 位于连杆和旋转部件附近的开关电连接到制动机构，用于建立与第一组限制内的旋转部件旋转运动相反的第二组限制。
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公开(公告)号：US06840048B2
公开(公告)日：2005-01-11
申请号：US10255114
申请日：2002-09-26
CPC分类号： F01D9/02 , F01D9/023 , F23R2900/00005
摘要： Respective combustion gas streams are generated in a can combustor. The streams are channeled downstream into an annular turbine nozzle. And, dynamic interaction of circumferentially adjacent combustion gas streams is suppressed axially between the cans and the nozzle.
摘要翻译： 在罐式燃烧器中产生各种燃烧气体流。 流被引导到下游进入环形涡轮喷嘴。 并且，在罐和喷嘴之间轴向地抑制周向相邻的燃烧气体流的动态相互作用。
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公开(公告)号：US06719295B2
公开(公告)日：2004-04-13
申请号：US10029226
申请日：2001-12-28
IPC分类号： F16J1544
CPC分类号： F01D11/005
摘要： In a gas turbine having a chordal hinge seal between an inner rail of each nozzle segment and an annular axially facing sealing surface of a nozzle support ring, a supplemental seal is disposed between the support ring and inner rail of the nozzle segment on a lower pressure side of the chordal hinge seal. The supplemental seal comprises a segmented annular composite tubular woven compliant seal disposed in a cavity along a sealing surface of the inner rail of the segment. The seal bears against the annular sealing surface of the nozzle support ring, which compresses the seal. Because of the compliant nature of the seal, a supplemental seal is formed on the low pressure side of the chordal hinge seal.
摘要翻译： 在具有在每个喷嘴段的内轨道和喷嘴支撑环的环形轴向相对的密封表面之间具有弦状铰链密封件的燃气轮机中，在较低压力下在辅助密封件之间设置在喷嘴段的支撑环和内轨道之间 侧面铰链密封。 补充密封件包括沿着该段的内轨道的密封表面设置在空腔中的分段环形复合管状编织柔性密封件。 密封件抵靠喷嘴支撑环的环形密封表面，压缩密封件。 由于密封的顺从性，在弦铰链密封件的低压侧形成补充密封。
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公开(公告)号：US06637753B2
公开(公告)日：2003-10-28
申请号：US10028930
申请日：2001-12-28
申请人： Abdul-Azeez Mohammed-Fakir , Ahmad Safi , Iain Robertson Kellock , Gary Michael Itzel , Brian Peter Arness
发明人： Abdul-Azeez Mohammed-Fakir , Ahmad Safi , Iain Robertson Kellock , Gary Michael Itzel , Brian Peter Arness
IPC分类号： F16J1508
CPC分类号： F16J15/0887 , F01D11/005
摘要： In a gas turbine having a chordal hinge seal between an inner rail of each nozzle segment and an annular axially facing sealing surface of a nozzle support ring, a supplemental seal is disposed between the support ring and inner rail of each nozzle segment radially inwardly of the chordal hinge seal. To minimize or prevent leakage flow across the chordal hinge seal, the seal is formed of flexible sheet metal which extends between the inner rail and a seat projecting from the annular sealing surface of the support ring radially inwardly of the chordal hinge seal. A first margin of the flexible seal engages in an arcuate groove carried by the inner rail. The opposite margin extends arcuately in sealing engagement along the seat carried by the nozzle support ring.
摘要翻译： 在具有每个喷嘴段的内轨道和喷嘴支撑环的环形轴向相对的密封表面之间具有弦向铰链密封的燃气轮机中，补充密封件设置在每个喷嘴段的支撑环和内轨道之间， 弦铰链密封。 为了最小化或防止跨弦铰链密封件的泄漏流动，密封件由柔性金属板形成，该金属板在内轨道和从支撑环的环形密封表面伸出的位于弦杆铰链密封件的径向内侧的座位之间延伸。 柔性密封件的第一边缘接合由内轨道承载的弓形凹槽。 相反的边缘沿着由喷嘴支撑环承载的座椅的密封接合弓形地延伸。
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公开(公告)号：US06637751B2
公开(公告)日：2003-10-28
申请号：US10028925
申请日：2001-12-28
IPC分类号： F16J1502
CPC分类号： F16J15/0812 , F01D9/041 , F01D11/005
摘要： In a gas turbine having a chordal hinge seal between an inner rail of each nozzle segment and an annular axially facing sealing surface of a nozzle support ring, a supplemental seal is disposed between the support ring and inner band of the nozzle segment on a high pressure side of the chordal hinge seal. The supplemental seal includes a pair of sheet metal shims overlaid by a woven metallic cloth supported by a bracket secured to the inner margin of the inner rail. The radially inner end of the cloth seal bears against the annular sealing surface of the nozzle support ring. The shims of the legs of the supplemental seal are slit along their distal margin and staggered circumferentially relative to one another to provide flexibility and effective sealing engagement with the nozzle support ring.
摘要翻译： 在具有在每个喷嘴段的内轨道和喷嘴支撑环的环形轴向相对的密封表面之间具有弦状铰链密封件的燃气轮机中，在高压下在喷嘴段的支撑环和内带之间设置补充密封 侧面铰链密封。 辅助密封件包括一对金属垫片，该金属垫片由被固定到内轨道的内缘的支架支撑的编织金属布覆盖。 布密封件的径向内端靠在喷嘴支撑环的环形密封表面上。 辅助密封件的腿的垫片沿着它们的远侧边缘被切开，并且相对于彼此周向交错，以提供与喷嘴支撑环的柔性和有效的密封接合。
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公开(公告)号：US06595745B1
公开(公告)日：2003-07-22
申请号：US10029004
申请日：2001-12-28
IPC分类号： F01D904
CPC分类号： F01D11/005 , F02C7/28 , F16J15/0887
摘要： In a gas turbine having a chordal hinge seal between an inner rail of each nozzle segment and an annular axially facing sealing surface of a nozzle support ring, a supplemental seal is disposed between the support ring and inner band of the nozzle segment on a lower pressure side of the chordal hinge seal. The supplemental seal includes a flexible sheet metal seal having a margin secured in a groove of the inner rail of the nozzle segments with a bent-over edge to form a seal therewith. The opposite margin has an edge which bears against the axially opposed sealing surface of the nozzle support ring. Leakage flow past the chordal hinge seal exerts sealing pressure against the preloaded flexible seal to maintain the seal between the sealing surfaces of the support ring and segments. The supplemental seal extends circumferentially and spans the joint between adjacent nozzle segments.
摘要翻译： 在具有在每个喷嘴段的内轨道和喷嘴支撑环的环形轴向相对的密封表面之间具有弦状铰链密封件的燃气涡轮机中，在较低压力下的辅助密封件之间设置在喷嘴段的支撑环和内带之间 侧面铰链密封。 辅助密封件包括柔性金属片密封件，其具有固定在喷嘴段的内轨道的凹槽中的边缘，具有弯曲边缘以与其形成密封。 相对的边缘具有抵靠喷嘴支撑环的轴向相对的密封表面的边缘。 通过弦杆铰链密封件的泄漏流动对预加载的柔性密封件施加密封压力，以保持支撑环和段的密封表面之间的密封。 辅助密封件周向延伸并跨过相邻喷嘴段之间的接头。
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公开(公告)号：US06655913B2
公开(公告)日：2003-12-02
申请号：US10045023
申请日：2002-01-15
IPC分类号： F01D2528
CPC分类号： F16J15/128 , F04D29/083 , F16J15/0812 , F16J15/121
摘要： Upper and lower halves of the inner barrel of a compressor for a turbine are bolted to one another along a horizontal midline joint with metal-to-metal surface contact. Elongated grooves are provided in the margin of one of the barrel halves. Elongated composite tubular woven seals are provided in the grooves, the seals having a diameter in excess of the depth of the grooves. The seals comprise an inner woven metal core surrounded by an annular silica fiber layer, in turn surrounded by a metal foil with an outer protective covering of a braided stainless steel. Upon joining the upper and lower halves, the compliant seal is crushed within the groove, maintaining a seal between the barrel halves in the event of warpage of the compressor casing during turbine operation.
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