WO2006103152A1 - Procede et dispositif pour remplacer des pieces d'une machine hydraulique rotative - Google Patents

Procede et dispositif pour remplacer des pieces d'une machine hydraulique rotative Download PDF

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Publication number
WO2006103152A1
WO2006103152A1 PCT/EP2006/060562 EP2006060562W WO2006103152A1 WO 2006103152 A1 WO2006103152 A1 WO 2006103152A1 EP 2006060562 W EP2006060562 W EP 2006060562W WO 2006103152 A1 WO2006103152 A1 WO 2006103152A1
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WO
WIPO (PCT)
Prior art keywords
inner housing
housing half
lower inner
rotation
outer housing
Prior art date
Application number
PCT/EP2006/060562
Other languages
German (de)
English (en)
Inventor
Darran-Lee Norman
Dragomir Puskaric
Peter Graf
Armin Busekros
Anke Vietgen-Zeidler
Original Assignee
Alstom Technology Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alstom Technology Ltd filed Critical Alstom Technology Ltd
Publication of WO2006103152A1 publication Critical patent/WO2006103152A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/26—Double casings; Measures against temperature strain in casings

Definitions

  • the invention relates to a method and a device for exchanging components of a flow rotary machine with a rotatable about a rotation axis rotor unit about which at least in an axial portion radially spaced a stationary inner housing is provided, which can be separated longitudinally to the rotation axis in an upper and lower inner housing half is surrounded and at least in an axial portion of an outer housing which is longitudinally to the axis of rotation in at least one upper and at least one lower outer housing half separable.
  • Flow rotary machines are often used for energy production in particular for the production of electrical energy and are based on the conversion of kinetic flow energy into rotational energy, which in turn is used to drive a generator for electrical energy production.
  • the term "flow rotary machine” should be understood to mean all those plants which have a rotatably mounted rotor unit, which are surrounded by an inner housing, which is connected to the Rotor unit one Flow channel includes, along the axially directed a working fluid flows under the action of expansive expansion energy, by which the rotor unit is set in rotation.
  • such rotary machines have an inner housing mostly completely surrounding outer housing in which the inner housing is mechanically stable.
  • the inner housing as well as the outer housing manufacturing and assembly conditionally each have two housing halves, which are each releasably firmly joined together via a mostly horizontally extending parting plane.
  • the rotatably mounted in the interior of the inner housing rotation unit has a plurality each arranged in rows of blades blades projecting radially into the limited by the inner housing flow channel, which corresponds to the heating channel in the case of a turbine stage of a gas turbine plant in which the hot gases emerging from the combustion chamber and expand set the rotor unit in rotation.
  • inner vanes are provided on the inner housing, which are each arranged in axially spaced rows of stator blades and open radially from the outside into the Schugaskanal. All those components that are directly exposed to the hot gases, in particular the guide vanes and blades described above, are subject to a high thermal load and have a material-dependent maximum runtime.
  • this opening of the gas turbine plant provides free access to all connected to the rotor unit components, in particular to the blades, which can be brought by appropriate rotation of the rotor unit about the rotation axis in the freely accessible upper portion of the open gas turbine and thus visually inspected , but it requires the replacement of individual blades to create a possibility for removal of a complete row of blades, so that this also the lower outer and inner housing half are to be dismantled. Furthermore, if it is also necessary to inspect and, if necessary, replace the guide vanes, which are also attached to the inner lower half of the inner housing half, the access thereto in the semi-open constellation of the gas turbine described above is very difficult or even impossible.
  • the invention is based on the object, a method and an apparatus for exchanging components of a flow rotating machine with a rotatable about a rotation axis rotor unit about which at least in an axial portion radially spaced a stationary inner housing is provided, which is longitudinal to the axis of rotation in an upper and lower Inner housing half is separable and at least in an axial portion of an outer housing is surrounded, which is longitudinally to the axis of rotation in at least one upper and at least one lower outer housing half separable to specify such that the exchange of particular connected to the lower inner housing half components should be significantly simplified.
  • claim 1 The solution of the problem underlying the invention is specified in claim 1.
  • Subject matter of claim 8 is a device according to the solution with the replacement of components of a flow rotating machine can be performed simplified.
  • the solution according to the method first uses the possibility that not necessarily the entire upper outer housing half is lifted from the flow rotating machine for required replacement work on internal components or components of a flow rotary machine, but only axially extending portions of the upper outer housing half.
  • the upper outer housing half is modularly divided into different sections that can be separated from each other separated from the rest. If only partial sections of the upper outer housing half are lifted, then the use of small and mobile lift-off devices is possible, especially as the less weighty housing parts are easier and more flexible to handle and to spend. Above all, however, the disassembly and the subsequent assembly costs when reassembling the smaller parts is considerably lower than in the case of a subdivision of the flow rotary machine in each case only one upper and lower half housing.
  • the upper inner housing half as well as the upper outer housing half likewise divided into several axial sections, it is possible to separate by the removal of part of the upper outer housing half freely created area a sub-segment of the upper inner housing half and by means of a suitable lifting device from the rest of the gas turbine plant separate.
  • the method according to the solution can also be applied to gas turbine plants whose upper and lower outer and inner housing halves each formed only in one piece and are handled in this form by means of suitable lifting devices.
  • the solution according to the method according to the preamble of claim 1 is characterized by the following steps: First, it is important to separate the upper outer housing half of the lower outer housing half to create a freely accessible to the inner housing area. Through the freely accessible area, the upper inner housing half is separated from the lower inner housing half and spent accordingly in a second step. With this measure, thus all firmly connected to the upper inner housing half components, such as vanes, can be maintained and replaced if necessary. In order to get to the previously difficult to access, associated with the lower inner housing half vanes care must be taken in a further step that the lower inner housing half is rotated together with the rotor unit with a constant radial distance from the rotor unit about the axis of rotation until the lower inner housing half is in the freely accessible upper area.
  • the above procedure should be followed in reverse order, ie. the lower inner half of the housing is placed from above onto the rotor unit, which is otherwise freely stored in the lower outer housing half, and rotated about it at the same radial distance into the lower position. Subsequently, the upper inner housing half is placed on the rotor unit and connected to the lower inner housing half. Finally, it is important to place the upper outer shell half on the lower outer shell half in order to hermetically encapsulate the complete inner shell against external influences.
  • a preferred alternative method provides, after removal of the upper outer and upper inner housing half to connect a stockpiled mint lower inner housing half with the old lower inner housing half. Subsequently, both inner housing halves are rotated around the rotor unit until the old lower inner housing half is in the upper freely accessible area. This is finally separated from the rotor unit and replaced by a new or as good as new upper inner housing half. Finally, it is only necessary to set the upper outer housing half for a final encapsulation on the lower outer housing half.
  • the solution according to the method is thus based on a targeted and controlled rotation of a réellegepatusehhan, which applies rotatably support relatively to the rotor unit, in a created by the removal of the upper outer housing half freely accessible area for performing maintenance or replacement work.
  • Process principle shows sequence image representations according to FIG. 1 with introduced support means between lower inner housing half and lower outer housing half
  • FIG. 3 shows a sequence diagram according to FIG. 1 with connecting means between the rotor unit and the lower inner housing half
  • FIG. 4 shows a sequence diagram according to FIG. 2 using a dummy tool as a replacement for the upper inner housing half
  • each sequence image representations are shown for successive disassembly steps, ultimately with the aim of the upper and lower inner housing half 2, 3 to remove a flow rotary machine together with the associated components, such as blades and vanes.
  • the individual sequence images each represent cross-sectional representations by a rotor unit 1 rotatably mounted about the rotation axis A, around which the upper 2 and lower 3 inner housing halves as well as the lower 4 and upper 5 outer housing halves are attached.
  • the individual housing halves 2, 3, 4, 5 can either half surround the rotor unit 1 in its full axial extent, or, as mentioned above, be formed only as axial part covers that allow a simplified disassembly. Regardless of the actual design of the individual housing halves, the subsequent disassembly steps can be applied to all possible embodiments of this housing halves.
  • FIG. 1 shows a cross section through a flow-rotation machine, for example a gas turbine, with an internal one Rotor unit 1, which is rotatably mounted along the axis of rotation A, around which radially spaced a stationary inner housing with an upper inner housing half 2 and a lower inner housing half 3 is mounted. Both inner housing halves 2, 3, are connected to the outer housing via support points 9.
  • the guide and blades are to be indicated by the between the rotor unit 1 and the inner housing halves 2, 3 radially extending lines.
  • support means 6 in the form of cylindrical roller elements are introduced, which on the one hand are for a constant radial Provide distance between the lower inner housing half 3 to the rotor unit 1 and also allow a rotational movement about the axis of rotation A, as is apparent in particular from the sequence image representations 2c and 2d.
  • the support means 6 designed as roller elements remain stationary on the inner periphery of the lower outer housing half 4 and thus enable a secure insertion of a newly fitted, upper inner housing half on the Rotor unit 1 with subsequent screwing into the region of the lower outer housing half.
  • the support means 6 serve only as auxiliary tools and can be removed again after appropriate final assembly.
  • FIG. 3 a A further alternative for a rotationally fixed mounting of the lower inner housing half 3 to the rotor unit 1 is shown in the sequence image representations according to FIG. 3 a to FIG.
  • the lower inner housing half 3 is fixed in rotation by connecting means 7 to the rotor unit 1.
  • the connecting means 7 constitute auxiliary tools which are inserted at suitable locations instead of blades and establish a firm connection between the rotor unit and the lower inner housing half 7.
  • a plurality of such connecting means 7 are equally distributed along the peripheral edge of the rotor unit 1 with the lower inner housing half 3 is connected.
  • Sequence images 3b to 3d show the harmless rotation of the lower inner housing half 3 that can be realized by the connecting means 7 about the axis of rotation A of the rotor unit 1.
  • the lower inner housing half 3 is separated from the rotor unit 1 by releasing its connections to the connecting means 7.
  • the fastest method variant for exchanging components of the flow rotary machine is indicated in the sequence image representations according to FIGS. 5 a to g.
  • the upper outer and inner housing halves 5, 2 must be separated from their respective lower halves in order to provide a freely accessible area from above, in order to replace the lower inner housing half 3 to enable.
  • a mint lower inner housing half 3 ' is placed on the rotor unit 1 and connected to the old lower inner housing half 3 instead of an auxiliary tool.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

La présente invention concerne un procédé et un dispositif pour remplacer des pièces d'une machine hydraulique rotative, le dispositif comprenant une unité rotor (1) qui peut tourner autour d'un axe de rotation (A), et autour de laquelle se trouve, à distance radiale, au moins dans une partie axiale, un boîtier intérieur fixe qui peut être séparé le long de l'axe de rotation (A), en une moitié supérieure de boîtier intérieur et une moitié inférieure de boîtier intérieur (2, 3), et est entouré au moins dans une partie axiale, par un boîtier extérieur qui peut être séparé le long de l'axe de rotation (A), en au moins une moitié supérieure de boîtier extérieur et au moins une moitié inférieure de boîtier extérieur (4, 5). Le procédé se caractérise par les étapes suivantes: séparation de la moitié supérieure de boîtier extérieur (5) pour obtenir une zone donnant le libre accès au boîtier intérieur; séparation de la moitié supérieure de boîtier intérieur (2) à travers la zone d'accès; mise en rotation de la moitié inférieure de boîtier intérieur (3) autour de l'axe de rotation (A), avec conservation de la distance radiale par rapport à l'unité rotor (1), jusqu'à ce que la moitié inférieure de boîtier intérieur (3) se trouve dans la zone d'accès; et retrait de la moitié inférieure de boîtier intérieur (3) par la zone d'accès.
PCT/EP2006/060562 2005-03-29 2006-03-08 Procede et dispositif pour remplacer des pieces d'une machine hydraulique rotative WO2006103152A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5262005 2005-03-29
CH00526/05 2005-03-29

Publications (1)

Publication Number Publication Date
WO2006103152A1 true WO2006103152A1 (fr) 2006-10-05

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WO (1) WO2006103152A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008012195A1 (fr) * 2006-07-24 2008-01-31 Siemens Aktiengesellschaft Procédé pour dévisser une moitié annulaire d'un distributeur de forme globale annulaire hors d'une moitié inférieure de boîtier d'une turbomachine stationnaire à écoulement axial, dispositif de montage, assemblage de dispositif de montage et demi-secteur annulaire auxiliaire
WO2009054050A1 (fr) 2007-10-23 2009-04-30 Mitsubishi Heavy Industries, Ltd. Procede et element de demontage d'aubage
EP2107219A1 (fr) * 2008-04-03 2009-10-07 Siemens Aktiengesellschaft Segment de couronne d'aubes directrices et support de couronne pour un boîtier de turbomachine divisé horizontalement
EP2644844A1 (fr) * 2012-03-30 2013-10-02 Alstom Technology Ltd Turbine à gaz avec boîtier intérieur et boîtier extérieur et procédé de démontage des boîtiers
JP2013256942A (ja) * 2012-06-08 2013-12-26 General Electric Co <Ge> ガスタービンのケーシングシェルのロールインおよび位置合わせのための方法および装置
EP2706200A1 (fr) * 2012-09-10 2014-03-12 Alstom Technology Ltd Procédé pour supprimer un coffrage interne d'une machine
EP2706199A1 (fr) 2012-09-10 2014-03-12 Alstom Technology Ltd Procédé et guide pour supprimer un coffrage interne d'une turbomachine
EP2772617A1 (fr) 2013-02-27 2014-09-03 Alstom Technology Ltd Turbomachine avec moyens de support et procédé de démontage de la machine
EP2851522A1 (fr) 2013-09-19 2015-03-25 Siemens Aktiengesellschaft Dispositif de rotation pour une turbine à gaz et procédés pour faire tourner un composant
EP2921657A1 (fr) * 2014-03-20 2015-09-23 Alstom Technology Ltd Outil pour le désassemblage un bôitier interne d'une turbomachine
CN104929703A (zh) * 2014-03-20 2015-09-23 阿尔斯通技术有限公司 涡轮机和用于拆卸此类涡轮机的方法
EP2690256A3 (fr) * 2012-07-26 2017-08-23 General Electric Company Procédé et système pour l'assemblage et le désassemblage de carters de turbomachines

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1211313A (en) * 1968-06-24 1970-11-04 Westinghouse Electric Corp Bladed elastic fluid handling machine
US4925363A (en) * 1989-02-13 1990-05-15 Westinghouse Electric Corp. Blade ring rollout roller
US6079943A (en) * 1995-03-31 2000-06-27 General Electric Co. Removable inner turbine shell and bucket tip clearance control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1211313A (en) * 1968-06-24 1970-11-04 Westinghouse Electric Corp Bladed elastic fluid handling machine
US4925363A (en) * 1989-02-13 1990-05-15 Westinghouse Electric Corp. Blade ring rollout roller
US6079943A (en) * 1995-03-31 2000-06-27 General Electric Co. Removable inner turbine shell and bucket tip clearance control

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008012195A1 (fr) * 2006-07-24 2008-01-31 Siemens Aktiengesellschaft Procédé pour dévisser une moitié annulaire d'un distributeur de forme globale annulaire hors d'une moitié inférieure de boîtier d'une turbomachine stationnaire à écoulement axial, dispositif de montage, assemblage de dispositif de montage et demi-secteur annulaire auxiliaire
WO2009054050A1 (fr) 2007-10-23 2009-04-30 Mitsubishi Heavy Industries, Ltd. Procede et element de demontage d'aubage
EP2213846A1 (fr) * 2007-10-23 2010-08-04 Mitsubishi Heavy Industries, Ltd. Procede et element de demontage d'aubage
EP2213846A4 (fr) * 2007-10-23 2013-10-23 Mitsubishi Heavy Ind Ltd Procede et element de demontage d'aubage
EP2107219A1 (fr) * 2008-04-03 2009-10-07 Siemens Aktiengesellschaft Segment de couronne d'aubes directrices et support de couronne pour un boîtier de turbomachine divisé horizontalement
WO2009121653A1 (fr) * 2008-04-03 2009-10-08 Siemens Aktiengesellschaft Appareil pour un carter de turbomachine divisé horizontalement, segment de disques de guidage et support d’aube directrice pour un carter de turbomachine divisé horizontalement
JP2011516776A (ja) * 2008-04-03 2011-05-26 シーメンス アクチエンゲゼルシヤフト 水平分割式タービン車室用静翼輪据付装置、水平分割式タービン車室用静翼輪セグメント及び静翼ホルダ
US8708648B2 (en) 2008-04-03 2014-04-29 Siemens Aktiengesellschaft Device for a horizontally split turbomachine housing, guide vane ring segment and guide vane carrier for a horizontally split turbomachine housing
EP2644844A1 (fr) * 2012-03-30 2013-10-02 Alstom Technology Ltd Turbine à gaz avec boîtier intérieur et boîtier extérieur et procédé de démontage des boîtiers
JP2013256942A (ja) * 2012-06-08 2013-12-26 General Electric Co <Ge> ガスタービンのケーシングシェルのロールインおよび位置合わせのための方法および装置
EP2690256A3 (fr) * 2012-07-26 2017-08-23 General Electric Company Procédé et système pour l'assemblage et le désassemblage de carters de turbomachines
CN103671278A (zh) * 2012-09-10 2014-03-26 阿尔斯通技术有限公司 用于从机器移除内壳的方法
KR101557274B1 (ko) * 2012-09-10 2015-10-05 알스톰 테크놀러지 리미티드 기계로부터 내부 케이싱 제거 방법
JP2014051985A (ja) * 2012-09-10 2014-03-20 Alstom Technology Ltd 機械から内側ケーシングを取り外す方法
EP2706199A1 (fr) 2012-09-10 2014-03-12 Alstom Technology Ltd Procédé et guide pour supprimer un coffrage interne d'une turbomachine
CN103670544A (zh) * 2012-09-10 2014-03-26 阿尔斯通技术有限公司 用于从涡轮机移除内壳体的方法和引导件
EP2706198A1 (fr) * 2012-09-10 2014-03-12 Alstom Technology Ltd Procédé pour supprimer un coffrage interne d'une machine
EP2706200A1 (fr) * 2012-09-10 2014-03-12 Alstom Technology Ltd Procédé pour supprimer un coffrage interne d'une machine
US9528393B2 (en) 2012-09-10 2016-12-27 General Electric Technology Gmbh Method and guide for removing an inner casing from a turbomachine
KR101562840B1 (ko) 2012-09-10 2015-10-23 알스톰 테크놀러지 리미티드 터보머신으로부터 내부 케이싱을 제거하기 위한 방법 및 가이드
US9162329B2 (en) 2012-09-10 2015-10-20 Alstom Technology Ltd. Method for removing an inner casing from a machine
JP2014051984A (ja) * 2012-09-10 2014-03-20 Alstom Technology Ltd ターボ機械から内側ケーシングを取り外すための方法およびガイド
US9739177B2 (en) 2013-02-27 2017-08-22 Ansaldo Energia Switzerland AG Rotary flow machine and method for disassembling the same
EP2772617A1 (fr) 2013-02-27 2014-09-03 Alstom Technology Ltd Turbomachine avec moyens de support et procédé de démontage de la machine
WO2015039830A1 (fr) 2013-09-19 2015-03-26 Siemens Aktiengesellschaft Dispositif de mise en rotation pour turbine à gaz et procédé permettant de faire tourner un élément structural
EP2851522A1 (fr) 2013-09-19 2015-03-25 Siemens Aktiengesellschaft Dispositif de rotation pour une turbine à gaz et procédés pour faire tourner un composant
EP2921656A1 (fr) 2014-03-20 2015-09-23 Alstom Technology Ltd Turbomachine et procédé pour la désassembler
US20150267561A1 (en) * 2014-03-20 2015-09-24 Alstom Technology Ltd Turbomachine and method for disassembling such a turbomachine
CN104929703A (zh) * 2014-03-20 2015-09-23 阿尔斯通技术有限公司 涡轮机和用于拆卸此类涡轮机的方法
EP2921657A1 (fr) * 2014-03-20 2015-09-23 Alstom Technology Ltd Outil pour le désassemblage un bôitier interne d'une turbomachine
US11215079B2 (en) 2014-03-20 2022-01-04 Ansaldo Energia Switzerland AG Turbomachine and method for disassembling such a turbomachine

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