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公开(公告)号：US06641144B2
公开(公告)日：2003-11-04
申请号：US10028924
申请日：2001-12-28
IPC分类号： F01D904
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 flexible supplemental seal is disposed between the support ring and inner band of the nozzle segment radially inwardly of the chordal hinge seal. To minimize or prevent leakage flow across the chordal hinge seal, the flexible seal extends between the inner rail and the sealing surface of the support ring radially inwardly of the chordal hinge seal. A first margin of the flexible seal engages in a linear groove carried by the inner rail. The opposite margin extends arcuately in 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涡轮机中，柔性补充密封件设置在喷嘴段的支撑环和内带之间的径向向内 弦铰链密封。 为了最小化或防止跨越铰链密封件的泄漏流动，柔性密封件在内侧轨道和支撑环的密封表面之间延伸，该密封表面在弦向铰链密封件的径向向内。 柔性密封件的第一边缘接合由内轨道承载的直线槽。 相对的边缘与喷嘴支撑环密封接合地弓形延伸。
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公开(公告)号：US06637752B2
公开(公告)日：2003-10-28
申请号：US10028929
申请日：2001-12-28
IPC分类号： F16J1508
CPC分类号： F16J15/0887 , F01D11/005 , F16J15/0812
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 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 nozzle support ring. The radially outer end of the cloth seal bears against a back side of the inner rail. The shims of the legs of the supplemental seal are slit along their distal margin and staggered in a circumferential direction relative to one another to provide flexibility and effective sealing engagement with the inner rail.
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轨道之间设置补充密封 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喷嘴支撑环上的支架支撑的编织金属布覆盖。 布密封件的径向外端抵靠内轨的后侧。 补充密封件的腿的垫片沿着它们的远侧边缘被切开，并且在相对于彼此的圆周方向上交错，以提供与内轨道的柔性和有效的密封接合。
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公开(公告)号：US06609885B2
公开(公告)日：2003-08-26
申请号：US10028931
申请日：2001-12-28
IPC分类号： F01D904
CPC分类号： F01D11/005 , F01D9/041 , F16J15/0812
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 high pressure side of the chordal hinge seal. The supplemental seal includes a pair of sheet metal shims overlaid by a woven metallic cloth. A bracket and a portion of the supplemental seal are received in a groove along a radial inward facing surface of the inner rail. The projecting margin of the cloth seal bears against the annular sealing surface of the nozzle support ring. The shims of the distal margin of the supplemental seal are slit and staggered in a chord-wise direction 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轨道之间设置补充密封 侧面铰链密封。 补充密封件包括由金属编织布覆盖的一对钣金垫片。 支架和补充密封件的一部分被容纳在沿着内轨的径向向内的表面的凹槽中。 布密封件的突出部分靠在喷嘴支撑环的环形密封表面上。 辅助密封件的远侧边缘的垫片相对于彼此沿着弦向方向被切开并交错，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：US06599089B2
公开(公告)日：2003-07-29
申请号：US10029227
申请日：2001-12-28
IPC分类号： F01D904
CPC分类号： F02C7/28 , F01D11/005 , F16J15/0812
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 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 a back side surface 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 in a chord-wise direction 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轨道之间设置补充密封 侧面铰链密封。 补充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后侧表面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。 补充密封件的腿的垫片沿着它们的远侧边缘被切开，并且相对于彼此以和弦方向交错，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：US06572331B1
公开(公告)日：2003-06-03
申请号：US10029228
申请日：2001-12-28
IPC分类号： F01D904
CPC分类号： F01D11/005 , 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 rail of the nozzle segment. The supplemental seal is formed of a preloaded flexible sheet metal seal having a first margin secured in a linear groove extending in a tangential direction along the inner rail of the nozzle segments with a bent-over edge to form a seal therewith. The opposite second margin has an edge which bears against the axially opposed sealing surface of the nozzle support ring. Sealing pressure against the preloaded flexible seal from a high pressure region maintains the seal between the sealing surfaces of the support ring and segments. The supplemental seal extends tangentially and end edges thereof overlap one another to form a seal between adjacent nozzle segments.
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状铰链密封件的燃气轮机中，在喷嘴段的支撑环和内轨道之间设置补充密封。 辅助密封件由预加载的柔性金属片密封件形成，该密封件具有固定在沿着沿喷嘴段的内轨道的切线方向延伸的直线槽中的第一边缘，具有弯曲边缘以与其形成密封。 相对的第二边缘具有抵靠喷嘴支撑环的轴向相对的密封表面的边缘。 从高压区域对预加载的柔性密封件的密封压力保持了支撑环的密封表面和段之间的密封。 辅助密封件切向延伸并且其端部边缘彼此重叠以在相邻的喷嘴段之间形成密封。
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公开(公告)号：US06537023B1
公开(公告)日：2003-03-25
申请号：US10028926
申请日：2001-12-28
申请人： Mahmut Faruk Aksit , Ahmad Safi , Abdul-Azeez Mohammed-Fakir , Gilbert Joseph Dean , Thomas Paul Martin
发明人： Mahmut Faruk Aksit , Ahmad Safi , Abdul-Azeez Mohammed-Fakir , Gilbert Joseph Dean , Thomas Paul Martin
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 rail of the nozzle segment on a high pressure side of the chordal hinge seal. The supplemental seal includes a sheet metal seal supported by a bracket secured to the back side and radial inner surfaces of the inner rail. The sheet metal seal has a flexible margin which is preloaded and bears against the annular sealing surface of the nozzle support ring. The bracket is bolted or welded to the inner rail with the sheet metal seal therebetween inhibiting or precluding leakage past the back side of the supplemental 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，在高压下在喷嘴段的支撑环和内轨道之间设置补充密封 侧面铰链密封。 补充密封件包括由固定到内轨的后侧和径向内表面的支架支撑的金属板密封件。 金属板密封件具有预先加载并抵靠喷嘴支撑环的环形密封表面的柔性边缘。 支架被螺栓连接或焊接到内轨上，其间的金属板密封件阻止或排除通过辅助密封件背面的泄漏。
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公开(公告)号：US06502825B2
公开(公告)日：2003-01-07
申请号：US09745841
申请日：2000-12-26
IPC分类号： F16J1532
CPC分类号： F16J15/3288 , F23R3/60
摘要： A seal assembly includes a cloth seal for sealing a cavity between a first mating body and a second mating body, the seal dividing the cavity into a high pressure region and a low pressure region. The cloth seal has a shim assemblage and a cloth assemblage. A first peripheral portion of the cloth seal may include a portion of the cloth assemblage and/or the shim assemblage which contacts the high pressure region and a second peripheral portion including a portion of the cloth assemblage adapted to contact the low pressure region. Knowing the flow conditions and pressure differential through the seal, the density of the cloth seal may be calibrated to control leakage and the shim and cloth assemblages may be designed to minimize contact loads on a mating body.
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公开(公告)号：US06257588B1
公开(公告)日：2001-07-10
申请号：US09201008
申请日：1998-11-30
IPC分类号： F16J15447
CPC分类号： F16J15/3288
摘要： The brush seal includes manually-flexible, plastic-containing, brush-seal bristles attached to an elongated bristle holder. The rotary machine has a rotor and stator casing segments with segments of the brush seal positioned one each in a surface groove of a corresponding stator casing segment. In one example, the bristle holder is manually flexible, the bristles and the bristle holder define a monolithic unit, and the brush seal is coiled onto a spool from which a desired length is cut thereby avoiding the necessity of manufacturing a brush seal segment to a specific radius and a specific circumferential length to match a particular stator casing segment.
摘要翻译： 刷密封件包括附接到细长的刷毛架上的手动柔性的含塑料的刷密封刷毛。 旋转机具有转子和定子壳体段，其中刷子密封件的段各自位于相应的定子壳体段的表面槽中。 在一个示例中，刷毛保持器是手动柔性的，刷毛和刷毛保持器限定整体单元，并且刷密封件被卷绕到从其切割所需长度的卷轴上，从而避免制造刷密封段到 特定半径和特定圆周长度以匹配特定的定子外壳段。
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