EP2220342B1 - Plaque de protection contre l'érosion pour aubes mobiles - Google Patents

Plaque de protection contre l'érosion pour aubes mobiles Download PDF

Info

Publication number
EP2220342B1
EP2220342B1 EP08864232A EP08864232A EP2220342B1 EP 2220342 B1 EP2220342 B1 EP 2220342B1 EP 08864232 A EP08864232 A EP 08864232A EP 08864232 A EP08864232 A EP 08864232A EP 2220342 B1 EP2220342 B1 EP 2220342B1
Authority
EP
European Patent Office
Prior art keywords
blade
rotor blade
erosion shield
erosion
protection shield
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.)
Not-in-force
Application number
EP08864232A
Other languages
German (de)
English (en)
Other versions
EP2220342A1 (fr
Inventor
Norbert Sürken
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to EP08864232A priority Critical patent/EP2220342B1/fr
Priority to PL08864232T priority patent/PL2220342T3/pl
Publication of EP2220342A1 publication Critical patent/EP2220342A1/fr
Application granted granted Critical
Publication of EP2220342B1 publication Critical patent/EP2220342B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • 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
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F01D5/146—Shape, i.e. outer, aerodynamic form of blades with tandem configuration, split blades or slotted blades
    • 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
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
    • 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
    • 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
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/31—Application in turbines in steam turbines
    • 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
    • F05D2250/30—Arrangement of components
    • F05D2250/34—Arrangement of components translated
    • 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
    • F05D2260/00—Function
    • F05D2260/95—Preventing corrosion

Definitions

  • the erosion protection shield and the blade are formed as a single integral component.
  • the erosion protection shield can be connected to the turbine blade with a comparatively large binding force or holding force.
  • the erosion protection shield is formed of an erosion-resistant material, such as Stellite, Ultimet, ⁇ - or ⁇ -titanium or hardened steel.
  • the erosion protection shield 10 is bonded or positively connected to the blade root 5.
  • FIG. 2 is a perspective view of a portion of a turbine stage 1 can be seen.
  • the erosion protection shield 10 is shown in the installed state.
  • the FIG. 5 shows a side view of the erosion protection shield 10.
  • the erosion protection shield 10 is seen in cross section in the longitudinal direction 11 formed with a rectangular or triangular profile.
  • the erosion protection shield 10 has a turbine profiling with suction and pressure side, which in the FIG. 5 not shown.
  • the erosion protection shield 10 can be designed bent around the longitudinal alignment 11, which leads to a curved dovetail 13, which are arranged in a curved recess 12.
  • the erosion protection shield 10 can be arranged in an alternative embodiment directly on the rotor 3, which in the FIGS. 1 to 5 not shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Claims (14)

  1. Aube (2) mobile
    comprenant une lame (4) d'aube et une emplanture (5) d'aube, la lame (4) d'aube ayant un extrados (6) et un intrados (7), ainsi qu'un bord (8) d'attaque et un bord (9) de fuite, dans laquelle
    un bouclier (10) de protection vis-à-vis de l'érosion est disposé devant le bord (9) de fuite pour empêcher une érosion par choc de gouttes, dans laquelle
    le bouclier (10) de protection vis-à-vis de l'érosion est à distance du bord (9) de fuite,
    dans laquelle
    le bouclier (10) de protection vis-à-vis de l'érosion est disposé devant l'intrados (6),
    caractérisée en ce que
    le bouclier (10) de protection vis-à-vis de l'érosion a un bord (15) arrière et un bord (16) avant et le bord (15) arrière dépasse du bord (9) de fuite.
  2. Aube (2) mobile suivant la revendication 1,
    dans laquelle le bouclier (10) de protection vis-à-vis de l'érosion est dirigé dans la direction (11) longitudinale de la lame (4) de l'aube.
  3. Aube (2) mobile suivant l'une des revendications précédentes,
    dans laquelle l'aube (2) mobile a une longueur (L) et le bouclier (10) de protection vis-à-vis de l'érosion a une longueur représentant de 1% à 100% de la longueur (L).
  4. Aube (2) mobile suivant l'une des revendications précédentes,
    dans laquelle la lame (4) de l'aube a une longueur (S) de corde et le bouclier (10) de protection vis-à-vis de l'érosion a une largeur (b) représentant de 5% à 75% de la longueur (S) de la corde.
  5. Aube (2) mobile suivant l'une des revendications précédentes,
    dans laquelle le bouclier (10) de protection vis-à-vis de l'érosion est relié à complémentarité de force avec l'emplanture (5) de l'aube.
  6. Aube (2) mobile suivant l'une des revendications 1 à 4,
    dans laquelle le bouclier (10) de protection vis-à-vis de l'érosion est relié à complémentarité de matière avec l'emplanture (5) de l'aube.
  7. Aube (2) mobile suivant l'une des revendications 1 à 4,
    dans laquelle le bouclier (10) de protection vis-à-vis de l'érosion est relié à complémentarité de forme avec l'emplanture (5) de l'aube.
  8. Aube (2) mobile suivant l'une des revendications précédentes,
    dans laquelle le bouclier (10) de protection vis-à-vis de l'érosion et l'aube (2) mobile sont constitués sous la forme d'un élément unique d'une seule pièce.
  9. Aube (2) mobile suivant l'une des revendications précédentes,
    dans laquelle le bouclier (10) de protection vis-à-vis de l'érosion a en section transversale, considéré dans la direction (11) longitudinale, un profil rectangulaire ou triangulaire.
  10. Aube (2) mobile suivant l'une des revendications précédentes,
    dans laquelle le bouclier (10) de protection vis-à-vis de l'érosion a un profilage de turbine ayant un extrados et un intrados.
  11. Aube (2) mobile suivant l'une des revendications 1 à 9, dans laquelle le bouclier (10) de protection vis-à-vis de l'érosion est en un matériau résistant à l'érosion, comme par exemple en stellite, en ultimet, en titane α ou en titane β ou en acier trempé.
  12. Aube (2) mobile suivant l'une des revendications précédentes,
    dans laquelle le bouclier (10) de protection vis-à-vis de l'érosion a un pied (13) en queue d'aronde et l'emplanture (5) de l'aube est constituée pour la réception du pied (13) en queue d'aronde.
  13. Aube (2) mobile suivant l'une des revendications précédentes,
    dans laquelle le bouclier (10) de protection vis-à-vis de l'érosion est courbé autour de la direction (11) longitudinale.
  14. Aube (2) mobile suivant l'une des revendications précédentes,
    dans laquelle le bouclier (10) de protection vis-à-vis de l'érosion a des ailes d'appui pour s'appuyer sur l'aube (2) mobile.
EP08864232A 2007-12-20 2008-11-27 Plaque de protection contre l'érosion pour aubes mobiles Not-in-force EP2220342B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08864232A EP2220342B1 (fr) 2007-12-20 2008-11-27 Plaque de protection contre l'érosion pour aubes mobiles
PL08864232T PL2220342T3 (pl) 2007-12-20 2008-11-27 Ekran ochronny przed erozją dla łopatek wirnika

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP07024843A EP2072757A1 (fr) 2007-12-20 2007-12-20 Bouclier anti-érosion pour aube rotative
EP08864232A EP2220342B1 (fr) 2007-12-20 2008-11-27 Plaque de protection contre l'érosion pour aubes mobiles
PCT/EP2008/066307 WO2009080439A1 (fr) 2007-12-20 2008-11-27 Plaque de protection contre l'érosion pour aubes mobiles

Publications (2)

Publication Number Publication Date
EP2220342A1 EP2220342A1 (fr) 2010-08-25
EP2220342B1 true EP2220342B1 (fr) 2012-12-26

Family

ID=39313050

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07024843A Withdrawn EP2072757A1 (fr) 2007-12-20 2007-12-20 Bouclier anti-érosion pour aube rotative
EP08864232A Not-in-force EP2220342B1 (fr) 2007-12-20 2008-11-27 Plaque de protection contre l'érosion pour aubes mobiles

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07024843A Withdrawn EP2072757A1 (fr) 2007-12-20 2007-12-20 Bouclier anti-érosion pour aube rotative

Country Status (6)

Country Link
US (1) US20100322775A1 (fr)
EP (2) EP2072757A1 (fr)
JP (1) JP5064570B2 (fr)
CN (1) CN101903618B (fr)
PL (1) PL2220342T3 (fr)
WO (1) WO2009080439A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2439376A1 (fr) * 2010-10-05 2012-04-11 Siemens Aktiengesellschaft Aube de rotor carénée pour une turbine à vapeur
ITMI20120779A1 (it) * 2012-05-08 2013-11-09 Franco Tosi Meccanica S P A Stadio rotorico di turbina assiale a protezione anti-erosione migliorata
US9644483B2 (en) * 2013-03-01 2017-05-09 General Electric Company Turbomachine bucket having flow interrupter and related turbomachine
FR3045710B1 (fr) * 2015-12-21 2018-01-26 Safran Aircraft Engines Bouclier de bord d'attaque

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3702222A (en) * 1971-01-13 1972-11-07 Westinghouse Electric Corp Rotor blade structure
US3751182A (en) * 1971-08-20 1973-08-07 Westinghouse Electric Corp Guide vanes for supersonic turbine blades
JPS5321045B2 (fr) * 1972-08-18 1978-06-30
JPS55100005U (fr) * 1979-01-08 1980-07-11
JPS55134703A (en) * 1979-04-06 1980-10-20 Hitachi Ltd Blade structure
US4512718A (en) * 1982-10-14 1985-04-23 United Technologies Corporation Tandem fan stage for gas turbine engines
JPH03267505A (ja) * 1990-03-19 1991-11-28 Hitachi Ltd エロージヨンシールド付きタービン動翼
JP3313487B2 (ja) * 1993-11-30 2002-08-12 株式会社東芝 蒸気タービンノズル
DE4411679C1 (de) * 1994-04-05 1994-12-01 Mtu Muenchen Gmbh Schaufelblatt in Faserverbundbauweise mit Schutzprofil
GB2293631B (en) * 1994-09-30 1998-09-09 Gen Electric Composite fan blade trailing edge reinforcement
JPH08232604A (ja) * 1995-02-27 1996-09-10 Toshiba Corp 蒸気タービンのエロージョン防止装置
JPH08254104A (ja) * 1995-03-16 1996-10-01 Mitsubishi Heavy Ind Ltd 蒸気タービン内湿分除去装置
JP4441836B2 (ja) * 2000-03-03 2010-03-31 株式会社Ｉｈｉ 二次流れ抑制翼列
JP3950308B2 (ja) * 2001-07-16 2007-08-01 三菱重工業株式会社 蒸気タービン内湿分除去装置

Also Published As

Publication number Publication date
US20100322775A1 (en) 2010-12-23
CN101903618B (zh) 2015-08-05
PL2220342T3 (pl) 2013-05-31
CN101903618A (zh) 2010-12-01
EP2220342A1 (fr) 2010-08-25
EP2072757A1 (fr) 2009-06-24
WO2009080439A1 (fr) 2009-07-02
JP2011506841A (ja) 2011-03-03
JP5064570B2 (ja) 2012-10-31

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