EP2354460B1 - Turbine Guide Vane - Google Patents

Turbine Guide Vane Download PDF

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Publication number
EP2354460B1
EP2354460B1 EP10152535.0A EP10152535A EP2354460B1 EP 2354460 B1 EP2354460 B1 EP 2354460B1 EP 10152535 A EP10152535 A EP 10152535A EP 2354460 B1 EP2354460 B1 EP 2354460B1
Authority
EP
European Patent Office
Prior art keywords
guide vane
pads
rail
rails
extending
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
EP10152535.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2354460A1 (en
Inventor
Georgeta-Ileana Panaite
Igor Tsypkaykin
Beat Von Arx
Andre Saxer
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.)
General Electric Technology GmbH
Original Assignee
Alstom Technology 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 Alstom Technology AG filed Critical Alstom Technology AG
Priority to EP10152535.0A priority Critical patent/EP2354460B1/en
Priority to ES10152535T priority patent/ES2431290T3/es
Priority to US13/012,317 priority patent/US20110189002A1/en
Priority to MYPI2011000407A priority patent/MY155452A/en
Publication of EP2354460A1 publication Critical patent/EP2354460A1/en
Application granted granted Critical
Publication of EP2354460B1 publication Critical patent/EP2354460B1/en
Active 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
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
    • 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
    • F01D25/246—Fastening of diaphragms or stator-rings
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods
    • F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
    • 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
    • F05D2240/80—Platforms for stationary or moving blades

Definitions

  • the present invention relates to a turbine guide vane.
  • the present invention refers to a supporting system for turbine guide vanes.
  • Gas turbine guide vanes are known to comprise a platform from which one or also more than one guide vane blade extend.
  • each platform two or also three guide vane blades extend.
  • the platforms have a front rail and a rear rail arranged to be inserted into guide vane carrier seats having a slot shape.
  • the shape of the rails must allow free deformations in order to avoid stress concentration and breakage risk.
  • Figure 1 shows a first embodiment of a traditional rail 1 inserted into a guide vane carrier seat 2 (in this figure the dimensions are exaggerated for sake of clarity, particularly radial dimensions are exaggerated); moreover, figure 1 also shows in dashed line a portion of a guide vane blade 3.
  • the rail 1 has a pad 4, extending from its side towards the guide vane blades 3, resting against the guide vane carrier seat 2; a second pad 5 extends from the side of the rail 1 opposite the guide vane blade 3 and rests against the guide vane carrier seat 2.
  • the guide vane in this traditional embodiment proved to have good deformation properties and also easy of assembling (i.e. sliding of the rail 1 into the guide vane carrier seat 2 proved to be easy); nevertheless this structure can only be implemented in lighter guide vanes; i.e. typically in guide vanes having only one or two guide vane blades 3.
  • Figure 2 shows a different embodiment of traditional rails.
  • This rail 1 is provided with pads 6 extending from the same side being the side of the rail 1 towards the guide vane blade 3; the opposite side of the rail 1 has no pads and rests directly against the guide vane carrier seat 2.
  • the guide vanes with these rails can be much heavier than those with the rails of figure 1 , for example these guide vanes can have three or also more than three guide vane blades.
  • US 7 458 772 discloses rails with pads extending from opposite circumferential portions thereof; the pads extending from the same circumferential portion are not staggered.
  • the technical aim of the present invention is therefore to provide a guide vane by which the said problems of the known art are eliminated.
  • an aspect of the invention is to provide a guide vane that can have a substantial weight and, in this respect, can also have three or more than three guide vane blades.
  • Another aspect of the invention is to provide a guide vane with rails having large deformation possibilities, such that during operation stress and forces concentration are avoided or limited and the lifetime of the guide vanes is increased.
  • a further aspect of the present invention is to provide a guide vane that can be easily and quickly assembled and disassembled.
  • the guide vane 10 has a platform 12 from which guide vane blades 13 extend; in particular figure 3 shows an embodiment of a guide vane 10 with three guide vane blades 13, it is anyhow clear that in different embodiments their number can also be different.
  • the guide vane 10 is also provided with supporting means that are located at the front side and rear side of the platform 12 (with reference to the hot gas flow direction indicated by arrow F in figure 3 ).
  • the front side of the platform 12 has a seat 15 for the stator heat shield and, correspondingly, the rear side of the platform 12 has a seat 16 for a further stator heat shield (the stator heat shields are not shown).
  • the front side of the platform 12 has a rail 18 arranged to be housed into a guide vane carrier seat 19; the guide vane carrier seat 19 is of traditional type and have the shape of a circumferential slot.
  • the rear side of the platform 12 has a rail 20 arranged to be housed into a guide vane carrier seat 21; also the guide vane carrier seat 21 is of traditional type and have the shape of a circumferential slot.
  • the rails 18 and 20 have projecting pads arranged to rest against the guide vane carrier seats 19, 21.
  • each rail 18, 20 has two pads 23 extending from one side of the rail and two further pads 24 extending from an opposite side of the rail 18, 20.
  • the pads 23 and 24 extend from opposite radial sides of each rail 18, 20; the pads 23 extend from a side of the rails 18, 20 facing the guide vane blades 13, and the other pads 24 extend from the opposite side, i.e. from the side opposite the guide vane blades 13.
  • the pads 23 and 24 extend from opposite circumferential portions 26 of the rails 18, 20, i.e. they are located close to the circumferentially opposite ends of the rails 18, 20.
  • the pads 23, 24 that extend from the same circumferential portion 26 of the rails 18, 20 are advantageously at least partly staggered with respect to one another.
  • figure 4 (referring to the front rail 18) shows the pads 23 and 24 that are staggered but are circumferentially very close one to the other.
  • Figure 5 shows that the pads 23 and 24 that are staggered are also circumferentially distant one from the other.
  • each couple of pads 23, 24 extending from the same circumferential portion 26 of each rail 18, 20 the pads 23 extending from the side of the rail facing the guide vane blades 13 are farther from the respective rail end 27 than those opposite the guide vanes blades 13 (i.e. the pads 24).
  • the pads 23 and 24 are symmetrically disposed with respect to the vane axis 28; it is anyhow clear that in different embodiments the pads 23 and 24 are not symmetrically disposed with respect to the vane axis 28.
  • the guide vanes of the invention may also have a heavy structure (such as for example guide vanes having three or more guide vane blades 13), since assembling/disassembling is easy and the degree of allowable deformations is very large.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP10152535.0A 2010-02-03 2010-02-03 Turbine Guide Vane Active EP2354460B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP10152535.0A EP2354460B1 (en) 2010-02-03 2010-02-03 Turbine Guide Vane
ES10152535T ES2431290T3 (es) 2010-02-03 2010-02-03 Álabe de guía de turbina
US13/012,317 US20110189002A1 (en) 2010-02-03 2011-01-24 Turbine guide vane
MYPI2011000407A MY155452A (en) 2010-02-03 2011-01-28 Turbine guide vane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10152535.0A EP2354460B1 (en) 2010-02-03 2010-02-03 Turbine Guide Vane

Publications (2)

Publication Number Publication Date
EP2354460A1 EP2354460A1 (en) 2011-08-10
EP2354460B1 true EP2354460B1 (en) 2013-07-24

Family

ID=42235861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10152535.0A Active EP2354460B1 (en) 2010-02-03 2010-02-03 Turbine Guide Vane

Country Status (4)

Country Link
US (1) US20110189002A1 (es)
EP (1) EP2354460B1 (es)
ES (1) ES2431290T3 (es)
MY (1) MY155452A (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106988785A (zh) * 2015-09-22 2017-07-28 安萨尔多能源瑞士股份公司 燃气轮机导叶

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9151226B2 (en) 2012-07-06 2015-10-06 United Technologies Corporation Corrugated mid-turbine frame thermal radiation shield
US9303528B2 (en) 2012-07-06 2016-04-05 United Technologies Corporation Mid-turbine frame thermal radiation shield
EP3034798B1 (en) * 2014-12-18 2018-03-07 Ansaldo Energia Switzerland AG Gas turbine vane

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1476928A1 (de) * 1965-05-29 1969-07-31 Bergmann Borsig Veb Leitschaufelfuss fuer Turbinen mit hoher Eintrittstemperatur
US5205708A (en) * 1992-02-07 1993-04-27 General Electric Company High pressure turbine component interference fit up
US7458772B2 (en) * 2004-10-26 2008-12-02 Alstom Technology Ltd. Guide vane ring of a turbomachine and associated modification method
FR2923527B1 (fr) * 2007-11-13 2013-12-27 Snecma Etage de turbine ou de compresseur, en particulier de turbomachine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106988785A (zh) * 2015-09-22 2017-07-28 安萨尔多能源瑞士股份公司 燃气轮机导叶

Also Published As

Publication number Publication date
MY155452A (en) 2015-10-15
ES2431290T3 (es) 2013-11-25
US20110189002A1 (en) 2011-08-04
EP2354460A1 (en) 2011-08-10

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