Supplemental seal for the chordal hinge seal in a gas turbine
    11.
    发明授权
    Supplemental seal for the chordal hinge seal in a gas turbine 失效
    燃气轮机中的弦铰链密封的补充密封

    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

    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。

    Supplemental seal for the chordal hinge seal in a gas turbine
    12.
    发明授权
    Supplemental seal for the chordal hinge seal in a gas turbine 失效
    燃气轮机中的弦铰链密封的补充密封

    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

    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。

    Supplemental seal for the chordal hinge seal in a gas turbine
    13.
    发明授权
    Supplemental seal for the chordal hinge seal in a gas turbine 失效
    燃气轮机中的弦铰链密封的补充密封

    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

    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。

    Supplemental seal for the chordal hinge seals in a gas turbine
    14.
    发明授权
    Supplemental seal for the chordal hinge seals in a gas turbine 有权
    燃气轮机中的弦铰链密封的补充密封

    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。

    Supplemental seal for the chordal hinge seal in a gas turbine
    15.
    发明授权
    Supplemental seal for the chordal hinge seal in a gas turbine 失效
    燃气轮机中的弦铰链密封的补充密封

    公开(公告)号:US06537023B1

    公开(公告)日:2003-03-25

    申请号:US10028926

    申请日:2001-12-28

    IPC分类号: F01D904

    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。

    Supplemental seal for the chordal hinge seals in a gas turbine
    17.
    发明授权
    Supplemental seal for the chordal hinge seals in a gas turbine 有权
    燃气轮机中的弦铰链密封的补充密封

    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。

    Supplemental seal for the chordal hinge seals in a gas turbine
    18.
    发明授权
    Supplemental seal for the chordal hinge seals in a gas turbine 失效
    燃气轮机中的弦铰链密封的补充密封

    公开(公告)号:US06637753B2

    公开(公告)日:2003-10-28

    申请号:US10028930

    申请日:2001-12-28

    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。

    Supplemental seal for the chordal hinge seals in a gas turbine
    19.
    发明授权
    Supplemental seal for the chordal hinge seals in a gas turbine 失效
    燃气轮机中的弦铰链密封的补充密封

    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

    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。

    Supplemental seal for the chordal hinge seals in a gas turbine
    20.
    发明授权
    Supplemental seal for the chordal hinge seals in a gas turbine 失效
    燃气轮机中的弦铰链密封的补充密封

    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

    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。