JPH0681604A - Turbine blade ring support device - Google Patents
Turbine blade ring support deviceInfo
- Publication number
- JPH0681604A JPH0681604A JP25558392A JP25558392A JPH0681604A JP H0681604 A JPH0681604 A JP H0681604A JP 25558392 A JP25558392 A JP 25558392A JP 25558392 A JP25558392 A JP 25558392A JP H0681604 A JPH0681604 A JP H0681604A
- Authority
- JP
- Japan
- Prior art keywords
- blade ring
- lower half
- support
- outer casing
- liner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は蒸気タービンの静止部で
あるタービン翼環又はダミー環を外部車室に固定するタ
ービン翼環支持装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turbine blade ring supporting device for fixing a turbine blade ring or a dummy ring, which is a stationary portion of a steam turbine, to an outer casing.
【０００２】[0002]
【従来の技術】図３は外部車室内でタービン翼環又はダ
ミー環（以下、これらを代表して翼環と記す）を支持す
る従来の方法を示している。図中、符号１は外部車室上
半部、２は外部車室下半部、３は翼環上半部、４は翼環
下半部、５は翼、６はロータを示している。７はサポー
ト、８はサポート固定用ボルト、９及び１０はライナで
タービン翼環支持装置を構成している。また、１１は翼
環上半部３及び翼環下半部４のスラスト方向の嵌合が厳
しいためにこれらを一体化する締付ボルト、１２はラジ
アルピンである。2. Description of the Related Art FIG. 3 shows a conventional method of supporting a turbine blade ring or a dummy ring (hereinafter referred to as a blade ring) in an outer casing. In the drawings, reference numeral 1 is an upper half of the outer casing, 2 is a lower half of the outer casing, 3 is an upper half of the blade ring, 4 is a lower half of the blade ring, 5 is a blade, and 6 is a rotor. Reference numeral 7 is a support, 8 is a support fixing bolt, and 9 and 10 are liners, which form a turbine blade ring support device. Further, 11 is a tightening bolt that integrates the upper half 3 of the blade ring and the lower half 4 of the blade ring in the thrust direction so that they are integrated, and 12 is a radial pin.
【０００３】図３の方法によれば、翼環下半部４の上面
にサポート固定用ボルト８にて固定されたサポート７を
外部車室下半部２の水平継手面にボルト締めされたライ
ナ１０の上に係止させることによって翼環を支持するよ
うにしている。According to the method shown in FIG. 3, a liner in which a support 7 fixed to the upper surface of the lower half 4 of the blade ring by a support fixing bolt 8 is bolted to the horizontal joint surface of the lower half 2 of the outer casing. The blade ring is supported by being locked on top of 10.
【０００４】図４はタービン翼環支持装置の別の従来例
を示すもので、図中、図３と同一の部分については同一
の符号を付してある。この図４の実施例によれば、翼環
下半部４の水平継手面下の外周面にサポート固定用ボル
ト１３によって取付けられたＬ型のサポート１４を、外
部車室下半部２の水平継手面内周側に削成した切欠き溝
１５の水平部に下半部ライナ固定用ボルト１６によって
取付けられた下半部ライナ１７の上に係止するように
し、サポート１４の上部には高さ調整のための上半部ラ
イナ１８が上半部ライナ固定用ボルト１９によってサポ
ート１４に取付けられている。FIG. 4 shows another conventional example of a turbine blade ring support device. In the figure, the same parts as those in FIG. 3 are designated by the same reference numerals. According to the embodiment shown in FIG. 4, the L-shaped support 14 mounted on the outer peripheral surface of the lower half portion 4 of the blade ring below the horizontal joint surface by the support fixing bolts 13 is attached to the lower half portion 2 of the outer casing. The lower half liner 17 attached by the lower half liner fixing bolt 16 to the horizontal portion of the cutout groove 15 formed on the inner peripheral side of the joint surface is engaged, and the upper portion of the support 14 is provided with a high The upper half liner 18 for adjusting the height is attached to the support 14 by the upper half liner fixing bolts 19.
【０００５】また、図４の実施例によれば、外部車室上
半部１を吊り上げて外部車室を解放する際に、外部車室
上半部１と翼環上半部３との嵌合部が熱変形等の理由に
より固着した場合にもそれらの縁が確実に切れるようホ
ールドダウンボルト２０によて翼環下半部４を外部車室
下半部２に固定してある。Further, according to the embodiment shown in FIG. 4, when the outer casing upper half 1 is lifted to release the outer casing, the outer casing upper half 1 and the blade ring upper half 3 are fitted together. The lower half portion 4 of the blade ring is fixed to the lower half portion 2 of the outer casing by the holddown bolt 20 so that the edges of the joint portion are surely cut off even if the joint portion is fixed due to thermal deformation or the like.
【０００６】[0006]
【発明が解決しようとする課題】図３に示した支持方法
では、翼環上半部３及び翼環下半部４から成る翼環の全
重量はサポート７を介して外部車室下半部２に支持され
ている。このため、サポート７のサポート固定用ボルト
８は翼環の全重量に耐えることができるものでなければ
ならない。したがって、サポート固定用ボルト８は必然
的に大きなサイズとなり、これが翼環の直径を小さくし
ようとした場合の障害となり、コンパクト化を阻む１つ
の要因となっている。In the supporting method shown in FIG. 3, the total weight of the blade ring consisting of the upper half 3 of the blade ring and the lower half 4 of the blade ring is transferred via the support 7 to the lower half of the outer casing. Supported by 2. For this reason, the support fixing bolt 8 of the support 7 must be able to withstand the total weight of the blade ring. Therefore, the support fixing bolt 8 inevitably has a large size, which becomes an obstacle when trying to reduce the diameter of the blade ring, which is one factor that prevents the size reduction.
【０００７】一方、図４に示した支持方法では、ホール
ドダウンボルト２０は翼環下半部４を貫通させて外部車
室下半部２にねじ込む構成であり、しかも外部車室の解
放の際に外部車室上半部１と翼環上半部３との縁を切る
のに過大な力が加わるため、必然的に長大サイズのボル
トが必要になっている。また、サポート１４の高さ方
向、横方向の位置を決めるのに加え、翼環下半部４と外
部車室下半部２とにあるホールドダウンボルト２０のね
じ穴の中心が合うよう配慮する必要がある。このため、
ホールドダウンボルト２０の使用は蒸気タービンのスム
ーズな組立作業及び解放作業を困難にしている。On the other hand, in the supporting method shown in FIG. 4, the hold-down bolt 20 has a structure in which the lower half portion 4 of the blade ring is penetrated and screwed into the lower half portion 2 of the outer casing, and when the outer casing is released. In addition, since an excessive force is applied to cut the edge between the outer casing upper half 1 and the blade ring upper half 3, a long bolt is inevitably required. Further, in addition to determining the position of the support 14 in the height direction and the lateral direction, the center of the screw hole of the hold-down bolt 20 in the lower half portion 4 of the blade ring and the lower half portion 2 of the outer casing is aligned. There is a need. For this reason,
The use of the holddown bolt 20 makes it difficult to smoothly assemble and release the steam turbine.
【０００８】本発明は上記事情にかんがみてなされたも
ので、外部車室及び翼環の直径を小さくしてコンパクト
化することが可能であり、かつホールドダウンボルトを
使用しないで外部車室及び翼環のスムーズな組立・解放
が可能なタービン翼環支持装置を提供することを目的と
する。The present invention has been made in view of the above circumstances, and it is possible to reduce the diameter of the outer casing and the blade ring to make it compact, and to use the hold down bolt without using the outer casing and the blade. An object of the present invention is to provide a turbine blade ring support device capable of smoothly assembling and releasing the ring.
【０００９】[0009]
【課題を解決するための手段】上記目的に対し、本発明
によれば、翼環下半部の水平継手面下の外周面にサポー
トを取付け、このサポートを外部車室下半部の水平継手
面の内周側に削成の切欠き溝に取付けたライナで押え込
むようにしたことを特徴とするタービン翼環支持装置が
提供される。For the above object, according to the present invention, a support is attached to the outer peripheral surface of the lower half of the blade ring below the horizontal joint surface, and this support is attached to the horizontal joint of the lower half of the outer casing. Provided is a turbine blade ring support device characterized in that a liner attached to a cutout groove is pressed down on the inner peripheral side of the surface.
【００１０】[0010]
【作用】上記手段によれば、サポートを翼環下半部の水
平面上でなく外周面に取付ける構成としかつ長大サイズ
のホールドダウンボルトがないため翼環及び外部車室の
直径を小さくしてコンパクト化が可能となり、サポート
をライナで押え込む構成としたことでそのライナにホー
ルドダウンボルトと同等の機能を受け持たせることがで
きるようになる。According to the above means, the support is mounted on the outer peripheral surface of the lower half of the blade ring, not on the horizontal plane, and since there is no large-sized holddown bolt, the diameter of the blade ring and the outer casing is reduced and the size is reduced. Since the support is pressed down by the liner, the liner can have a function equivalent to that of the holddown bolt.
【００１１】[0011]
【実施例】図１は本発明によるタービン翼環支持装置の
要部断面を示したもので、図２はそのＡ−Ａ矢視を示し
ている。これらの図において、図３及び図４に示したも
のと同一の要素については同一の符号を付してある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a cross section of a main part of a turbine blade ring support device according to the present invention, and FIG. 2 shows the AA arrow view. In these figures, the same elements as those shown in FIGS. 3 and 4 are designated by the same reference numerals.
【００１２】サポート１４は一部を翼環下半部４に嵌合
するようＬ字型に形成され、サポート固定用ボルト１３
によって翼環下半部４の水平継手面下の外周面に取付け
られている。このサポート１４は外部車室下半部２の水
平継手面の内周側に削成された切欠き溝１５に下半部ラ
イナ固定用ボルトによって取付けられた下半部ライナ１
７に載置される。The support 14 is formed in an L shape so that a part of the support 14 fits into the lower half 4 of the blade ring, and the support fixing bolt 13
Is attached to the outer peripheral surface of the lower half 4 of the blade ring below the horizontal joint surface. The support 14 is attached to the notch groove 15 formed on the inner peripheral side of the horizontal joint surface of the lower half portion 2 of the outer casing by means of the lower half liner fixing bolts.
Placed on 7.
【００１３】外部車室下半部２の水平継手面には更に切
欠き溝２１が削成されており、そこに上半部ライナ２２
が上半部ライナ固定用ボルト２３によってその切欠き溝
２１とサポート１４の上面の一部とを跨ぐようにして取
付けられている。すなわち、サポート１４はこの上半部
ライナ２２によって上から押え込むような形にされてい
る。A notch groove 21 is further formed in the horizontal joint surface of the lower half 2 of the outer casing, and an upper half liner 22 is formed therein.
Is attached by an upper half liner fixing bolt 23 so as to straddle the notch groove 21 and a part of the upper surface of the support 14. That is, the support 14 is shaped so as to be pressed from above by the upper half liner 22.
【００１４】外部車室を解放する際は、外部車室下半部
２に取付けた上半部ライナ２２でサポート１４を押え込
んでいるため、確実に外部車室上半部１と翼環上半部と
の縁を切ることができ、ロータが持ち上げられることも
ない。When the outer casing is released, since the support 14 is pressed down by the upper half liner 22 attached to the lower half 2 of the outer casing, the upper half 1 of the outer casing 1 and the wing ring are securely held. The edges can be cut off and the rotor will not be lifted.
【００１５】[0015]
【発明の効果】本発明によれば、翼環下半部の水平継手
面上のサポート及びホールドダウンボルトがないため、
翼環及び外部車室の直径を小さくしてコンパクト化する
ことが可能となり、また、ホールドダウンボルトがない
ことにより蒸気タービンの組立及び解放がスムーズとな
り、長いホールドダウンボルトに代えて短かい上半部ラ
イナ固定用ボルトで支持するため、強度上有利となり、
蒸気タービンの信頼性を向上させることができる。According to the present invention, since there is no support and hold-down bolt on the horizontal joint surface of the lower half of the blade ring,
It is possible to reduce the diameter of the blade ring and the outer casing to make it compact, and since there is no hold down bolt, the steam turbine can be assembled and released smoothly, and a short upper half is used instead of a long hold down bolt. Since it is supported by the bolts for fixing the liner, it is advantageous in strength,
The reliability of the steam turbine can be improved.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明によるタービン翼環支持装置の一実施例
を示す要部部分断面図である。FIG. 1 is a partial sectional view of an essential part showing an embodiment of a turbine blade ring support device according to the present invention.
【図２】図１のＡ−Ａ矢視図である。FIG. 2 is a view on arrow AA of FIG.
【図３】従来のタービン翼環支持装置の一例を示す蒸気
タービンの断面図である。FIG. 3 is a cross-sectional view of a steam turbine showing an example of a conventional turbine blade ring support device.
【図４】従来のタービン翼環支持装置の他の例を示す要
部断面図である。FIG. 4 is a cross-sectional view of essential parts showing another example of a conventional turbine blade ring support device.
１ 外部車室上半部 ２ 外部車室下半部 ３ 翼環（又はダミー環）上半部 ４ 翼環（又はダミー環）下半部 １３ サポート固定用ボルト １４ サポート １６ 下半部ライナ固定用ボルト １７ 下半部ライナ ２１ 切欠き溝 ２２ 上半部ライナ ２３ 上半部ライナ固定用ボルト 1 Upper half of external casing 2 Lower half of external casing 3 Upper half of blade ring (or dummy ring) 4 Lower half of blade ring (or dummy ring) 13 Support fixing bolt 14 Support 16 Lower half liner fixing Bolt 17 Lower half liner 21 Notch groove 22 Upper half liner 23 Upper half liner fixing bolt
Claims (1)
ートを取付け、このサポートを外部車室下半部の水平継
手面の内周側に削成の切欠き溝に取付けたライナで押え
込むようにしたことを特徴とするタービン翼環支持装
置。1. A support is attached to the outer peripheral surface of the lower half of the blade ring below the horizontal joint surface, and the support is attached to a cutout groove formed on the inner peripheral side of the horizontal joint surface of the lower half of the outer casing. A turbine blade ring support device characterized by being held down by a liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25558392A JPH0681604A (en) | 1992-08-31 | 1992-08-31 | Turbine blade ring support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25558392A JPH0681604A (en) | 1992-08-31 | 1992-08-31 | Turbine blade ring support device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0681604A true JPH0681604A (en) | 1994-03-22 |
Family
ID=17280738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25558392A Withdrawn JPH0681604A (en) | 1992-08-31 | 1992-08-31 | Turbine blade ring support device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0681604A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988003073A1 (en) * | 1986-10-21 | 1988-05-05 | Fanuc Ltd | Method of preparing nc programs for pocket machining |
| WO1989006006A1 (en) * | 1987-12-21 | 1989-06-29 | Fanuc Ltd | Method od defining combination profile |
| WO1989012855A1 (en) * | 1988-06-17 | 1989-12-28 | Fanuc Ltd | Profile/shape definition method |
| JP2012013046A (en) * | 2010-07-02 | 2012-01-19 | Mitsubishi Heavy Ind Ltd | Method and device for holding roundness state of turbine blade ring |
| JP2016188620A (en) * | 2015-03-30 | 2016-11-04 | 三菱日立パワーシステムズ株式会社 | Support device, turbine, assembly method of rotary machine, and disassembly method of the rotary machine |
| US10233770B2 (en) | 2014-01-27 | 2019-03-19 | Mitsubishi Hitachi Power Systems, Ltd. | Position adjustment device, rotating machine provided with same, and position adjustment method |
| US11136903B2 (en) | 2017-02-27 | 2021-10-05 | Mitsubishi Power, Ltd. | Steam turbine |
-
1992
- 1992-08-31 JP JP25558392A patent/JPH0681604A/en not_active Withdrawn
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988003073A1 (en) * | 1986-10-21 | 1988-05-05 | Fanuc Ltd | Method of preparing nc programs for pocket machining |
| WO1989006006A1 (en) * | 1987-12-21 | 1989-06-29 | Fanuc Ltd | Method od defining combination profile |
| WO1989012855A1 (en) * | 1988-06-17 | 1989-12-28 | Fanuc Ltd | Profile/shape definition method |
| JP2012013046A (en) * | 2010-07-02 | 2012-01-19 | Mitsubishi Heavy Ind Ltd | Method and device for holding roundness state of turbine blade ring |
| US10233770B2 (en) | 2014-01-27 | 2019-03-19 | Mitsubishi Hitachi Power Systems, Ltd. | Position adjustment device, rotating machine provided with same, and position adjustment method |
| JP2016188620A (en) * | 2015-03-30 | 2016-11-04 | 三菱日立パワーシステムズ株式会社 | Support device, turbine, assembly method of rotary machine, and disassembly method of the rotary machine |
| KR20170122225A (en) | 2015-03-30 | 2017-11-03 | 미츠비시 히타치 파워 시스템즈 가부시키가이샤 | Support device, turbine, method of assembling rotating machine, and method of disassembling rotating machine |
| CN107407163A (en) * | 2015-03-30 | 2017-11-28 | 三菱日立电力***株式会社 | Supporting arrangement, turbine, the method for dismounting of the assemble method of rotating machinery and rotating machinery |
| CN107407163B (en) * | 2015-03-30 | 2019-05-10 | 三菱日立电力***株式会社 | Supporting arrangement, turbine, rotating machinery assemble method and method for dismounting |
| US10619516B2 (en) | 2015-03-30 | 2020-04-14 | Mitsubishi Hitachi Power Systems, Ltd. | Support device, turbine, method for assembling rotary machine, and method for disassembling rotary machine |
| US11136903B2 (en) | 2017-02-27 | 2021-10-05 | Mitsubishi Power, Ltd. | Steam turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19991102 |