EP2183467B2 - Agencement de rotor de turbine - Google Patents

Agencement de rotor de turbine Download PDF

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Publication number
EP2183467B2
EP2183467B2 EP08775236.6A EP08775236A EP2183467B2 EP 2183467 B2 EP2183467 B2 EP 2183467B2 EP 08775236 A EP08775236 A EP 08775236A EP 2183467 B2 EP2183467 B2 EP 2183467B2
Authority
EP
European Patent Office
Prior art keywords
rotor
blade
blades
recesses
arrangement according
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.)
Active
Application number
EP08775236.6A
Other languages
German (de)
English (en)
Other versions
EP2183467B1 (fr
EP2183467A1 (fr
Inventor
Helmar Wunderle
Stefan Schlechtriem
Peter Graf
Silvio Glaser
Beat Von Arx
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ansaldo Energia IP UK Ltd
Original Assignee
Ansaldo Energia IP UK 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
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Application filed by Ansaldo Energia IP UK Ltd filed Critical Ansaldo Energia IP UK Ltd
Publication of EP2183467A1 publication Critical patent/EP2183467A1/fr
Publication of EP2183467B1 publication Critical patent/EP2183467B1/fr
Application granted granted Critical
Publication of EP2183467B2 publication Critical patent/EP2183467B2/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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/005—Sealing means between non relatively rotating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/55—Seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/13—Two-dimensional trapezoidal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/18—Two-dimensional patterned
    • F05D2250/182—Two-dimensional patterned crenellated, notched
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making

Definitions

  • a rim 814) is provided with a neck (12), which is interposed intermediately to the rotor.
  • the rim enables the blade (44) to be accommodated.
  • the seal of the inserted shovel should be achieved between the top contour of the rim and the bottom of the base cover plate of the shovel. Accordingly, for recording and An intermediate element can be used to seal the blade, with the seal then being achieved exclusively by bringing together two flat surfaces. So there is no labyrinth seal here.
  • the rotor 1 comprises a central part which has a peripheral surface essentially in the form of a cylindrical surface. Recesses 4 extending in the axial direction A are formed in this peripheral surface.
  • the recesses are designed as Christmas tree profiles.
  • the recesses 4 extend in the radial direction R inwards to the axis of the rotor.
  • the Christmas tree profiles each have alternately arranged grooves 10 or ribs 11, which are arranged in the axial direction.
  • the recesses 4 serve to axially insert the blades 2, which are designed with a corresponding male profile on the blade root.
  • a blade 2 comprises a blade 9, which may optionally also have a shroud on the radially outer side (not shown in this figure).
  • the blade root 3 formed on the underside comprises, on the one hand, a lower shroud 7 and is formed on this in the radial direction downwards via the blade root profile 16.
  • the option shown is particularly easy to implement in terms of manufacturing technology, since the rotor 1 in this case can simply be designed with a slightly larger circumferential radius for the circumferential surface 5, and can be milled or turned around the entire circumference in the areas arranged behind the stop element 13 in the insertion direction 8 can (metallic stripped feature).
  • the stepped shape can also be used specifically for this purpose can be used to allow exactly the desired amount of air to flow through the gap, for example for cooling.

Landscapes

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

Claims (9)

  1. Agencement d'un rotor pour une turbomachine avec des aubes, le rotor (1) étant conçu pour recevoir les aubes (2) qui forment au moins un étage d'aubes dans la direction périphérique du rotor, le rotor disposant d'une pluralité d'évidements (4) profilés s'étendant sensiblement axialement par rapport à la surface du rotor, dont la forme correspond, par complémentarité de forme et/ou par adhérence, aux profils de pied d'aube (16) des aubes qui y sont insérées essentiellement dans la direction axiale (8), et dans lequel il existe entre les évidements (4), dans la direction périphérique du rotor (1), des sections de surface périphérique (5) qui sont pourvues d'éléments de butée (13) par rapport à une partie correspondante des aubes insérées, caractérisé en ce que les éléments de butée (13) sont disposés à l'extrémité de chaque section de surface périphérique (5) par rapport à la direction d'insertion des aubes, en ce que chaque élément de butée (13) présente, par rapport à la section de surface périphérique (5) correspondante, une extension radiale et axiale qui correspond au moins par complémentarité de forme à un évidement (12) de l'aube insérée, en ce que la forme de l'élément de butée (13) et la forme de l'évidement (12) de l'aube forment un joint à labyrinthe entre le rotor et l'aube, et en ce que les éléments de butée (13) sont conçus comme des sections annulaires sur les sections de surface périphérique (5, 5') avec une section transversale carrée en coupe axiale.
  2. Agencement selon la revendication 1, caractérisé en ce que les évidements (4) dans le rotor sont réalisés sous forme de profilés en queue d'aronde ou de profilés en sapin.
  3. Agencement selon la revendication 1, caractérisé en ce que le rotor (1) est configuré à la périphérie de manière à ce qu'un nombre identique ou différent d'aubes puisse être installé par étage.
  4. Agencement selon les revendications 1 à 3, caractérisé en ce que le rotor (1) et/ou les aubes sont réalisés avec des moyens qui permettent une fixation axiale dans la zone avant ou arrière.
  5. Agencement selon la revendication 1, caractérisé en ce que l'évidement (12) de l'aube (2) est prévu dans la face inférieure d'une bande de recouvrement (7), en tant que partie intégrante de la pale d'aube (9) faisant partie de l'aube et disposée au-dessus.
  6. Agencement selon la revendication 1, caractérisé en ce que les éléments de butée (13) sont formés sur moins de 50 % de l'extension axiale des parties de surface périphérique (5, 5').
  7. Agencement selon la revendication 1, caractérisé en ce que les éléments de butée (13) présentent une hauteur radiale dans la plage allant de 1 à 20 mm.
  8. Agencement selon la revendication 1, caractérisé en ce que les éléments de butée (13) et les évidements (12) sont à fleur les uns des autres, et en ce que des moyens d'étanchéité sont disposés dans la zone des bords.
  9. Agencement selon la revendication 1, caractérisé en ce que l'aube (2) présente en outre une bande de recouvrement supérieure.
EP08775236.6A 2007-08-08 2008-07-21 Agencement de rotor de turbine Active EP2183467B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH12582007 2007-08-08
PCT/EP2008/059507 WO2009019126A1 (fr) 2007-08-08 2008-07-21 Agencement de rotor de turbine

Publications (3)

Publication Number Publication Date
EP2183467A1 EP2183467A1 (fr) 2010-05-12
EP2183467B1 EP2183467B1 (fr) 2015-11-18
EP2183467B2 true EP2183467B2 (fr) 2023-10-18

Family

ID=39865717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08775236.6A Active EP2183467B2 (fr) 2007-08-08 2008-07-21 Agencement de rotor de turbine

Country Status (6)

Country Link
US (1) US9435213B2 (fr)
EP (1) EP2183467B2 (fr)
JP (1) JP2010535968A (fr)
CA (1) CA2707510C (fr)
MX (1) MX2010001538A (fr)
WO (1) WO2009019126A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9109457B2 (en) * 2010-09-03 2015-08-18 Siemens Energy, Inc. Axial locking seals for aft removable turbine blade
FR3026429B1 (fr) * 2014-09-30 2016-12-09 Snecma Aube mobile de turbomachine, comprenant un ergot engageant une entaille de blocage d'un disque de rotor
US20160230579A1 (en) * 2015-02-06 2016-08-11 United Technologies Corporation Rotor disk sealing and blade attachments system
KR101689085B1 (ko) * 2015-08-03 2017-01-02 두산중공업 주식회사 터빈용 마지막 버켓 고정장치 및 이를 이용한 마지막 버켓의 조립 방법
DE102016222312A1 (de) * 2016-11-14 2018-05-17 Man Diesel & Turbo Se Strömungsmaschinenrotor und Verfahren zum Herstellen desselben
FR3085420B1 (fr) 2018-09-04 2020-11-13 Safran Aircraft Engines Disque de rotor avec arret axial des aubes, ensemble d'un disque et d'un anneau et turbomachine
FR3092865B1 (fr) * 2019-02-19 2021-01-29 Safran Aircraft Engines Disque de rotor avec arret axial des aubes, ensemble d’un disque et d’un anneau et turbomachine

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US2751189A (en) * 1950-09-08 1956-06-19 United Aircraft Corp Blade fastening means
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US3112914A (en) * 1960-08-01 1963-12-03 Gen Motors Corp Turbine rotor
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BE794573A (fr) * 1972-02-02 1973-05-16 Gen Electric Dispositif de fixation d'aubes
US3853425A (en) * 1973-09-07 1974-12-10 Westinghouse Electric Corp Turbine rotor blade cooling and sealing system
GB1527074A (en) * 1974-09-28 1978-10-04 Rolls Royce Bladed rotors
US4483661A (en) * 1983-05-02 1984-11-20 General Electric Company Blade assembly for a turbomachine
FR2603333B1 (fr) * 1986-09-03 1990-07-20 Snecma Rotor de turbomachine comportant un moyen de verrouillage axial et d'etancheite d'aubes montees dans des brochages axiaux du disque et procede de montage
DE3743253A1 (de) * 1987-12-19 1989-06-29 Mtu Muenchen Gmbh Axial durchstroemtes laufschaufelgitter fuer verdichter oder turbinen
US4904160A (en) * 1989-04-03 1990-02-27 Westinghouse Electric Corp. Mounting of integral platform turbine blades with skewed side entry roots
US5067877A (en) * 1990-09-11 1991-11-26 United Technologies Corporation Fan blade axial retention device
US5211407A (en) * 1992-04-30 1993-05-18 General Electric Company Compressor rotor cross shank leak seal for axial dovetails
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FR2700807B1 (fr) * 1993-01-27 1995-03-03 Snecma Système de rétention et d'étanchéité d'aubes engagées dans des brochages axiaux d'un disque de rotor.
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Also Published As

Publication number Publication date
US9435213B2 (en) 2016-09-06
WO2009019126A1 (fr) 2009-02-12
MX2010001538A (es) 2010-03-15
EP2183467B1 (fr) 2015-11-18
JP2010535968A (ja) 2010-11-25
EP2183467A1 (fr) 2010-05-12
CA2707510A1 (fr) 2009-02-12
US20100166563A1 (en) 2010-07-01
CA2707510C (fr) 2016-09-27

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