EP1577501A1 - Stator de turbine haute-pression de turbomachine et procédé d'assemblage - Google Patents
Stator de turbine haute-pression de turbomachine et procédé d'assemblage Download PDFInfo
- Publication number
- EP1577501A1 EP1577501A1 EP05290319A EP05290319A EP1577501A1 EP 1577501 A1 EP1577501 A1 EP 1577501A1 EP 05290319 A EP05290319 A EP 05290319A EP 05290319 A EP05290319 A EP 05290319A EP 1577501 A1 EP1577501 A1 EP 1577501A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stator
- housing
- pressure turbine
- sectors
- air
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 125000006850 spacer group Chemical group 0.000 claims abstract description 22
- 230000003252 repetitive effect Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
Images
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
- 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
-
- 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
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/209—Heat transfer, e.g. cooling using vortex tubes
Definitions
- the present invention relates to the general field of driving game at the top of the moving blades of a high-pressure turbine turbomachine. It is more particularly a method of the sectorized elements composing the stator of a turbine high-pressure turbomachine.
- the stator of a turbomachine high-pressure turbine is consists mainly of an annular housing arranged around an axis longitudinal axis of the turbine, a plurality of sectorized spacers mounted on the housing and a plurality of ring segments attached to the spacers and which form a circular surface surrounding blades movable rotor of the turbine.
- the present invention therefore aims to overcome such drawbacks by proposing a method of assembling the sectorized elements of a annular stator of a high-pressure turbine which makes it possible to obtain a gameplay at the top of the blades leading to distortions as low as possible and in all repetitive cases.
- the invention relates to a method of assembly of sectorized elements of an annular stator of a high-pressure turbine turbomachine about a longitudinal axis of said turbine, characterized in that it consists in defining an angular distribution pattern of the elements of the stator for a predetermined angular sector, the distribution pattern being defined to avoid radial alignment between inter-sector areas stator elements defined between two adjacent sectors the same stator element, and to repeat the distribution pattern over any the circumference of the stator.
- the angular distribution pattern is repeated from symmetrical way in rotation with respect to the angular sector predetermined.
- the stator elements consist of a housing annular, of a plurality of sectorized spacers on which are fixed a plurality of ring sectors forming a circular surface continuous flow around turbine blades of a turbine rotor, and a plurality of angular sectors of air flow boxes intended to unload air on the housing to allow the control of the game in top of the rotor blades of the high-pressure turbine
- the motive angular distribution of the stator elements is advantageously defined to avoid radial alignment between inter-spacing zones defined between two adjacent spacers and inter-sector areas housing defined between two adjacent housing sectors.
- the method further consists in radially aligning each feed mouth with air with an inter-sector box area.
- the predetermined angular sector corresponds to an angular sector of air circulation housing.
- each angular sector of air circulation box is associated advantageously three spacers and an air supply mouth.
- the invention also relates to a high-pressure turbine stator whose angular distribution of the sectored elements leads to low and repetitive thermal distortions.
- the high-pressure turbine stator is characterized in that the stator elements are angularly distributed around the longitudinal axis of the high-pressure turbine so as to avoid radial alignment between inter-spacer zones defined between two adjacent spacers and inter-sector box areas defined between two housing sectors adjacent.
- stator elements are distributed angularly around the longitudinal axis of the high-pressure turbine in in addition to radially align each air supply mouth with an inter-sector box area.
- the stator comprises N angular sectors air flow boxes, 3N spacers, N power outlets in air and 6N ring sectors.
- the stator 10 of a high-pressure turbine comprises a housing annular 12 disposed around a longitudinal axis X-X of the high-pressure turbine.
- annular housing 12 On the inner surface of the annular housing 12 are mounted a plurality of sectorized spacers 14 and arranged circumferentially around the longitudinal axis X-X of the turbine.
- sectored elements for the rest of the description, it is understood that the designated elements are present in the form of angular sectors which, when placed end to end, form an annular assembly.
- Ring sectors 16 are fixed on the inner surface of the spacers 14.
- the ring sectors 16 are arranged circumferentially around the longitudinal axis X-X of the turbine and form a continuous circular surface surrounding moving blades (no shown in the figures) of a rotor (not shown) of the turbine high pressure.
- the inner surface of the ring sectors 16 partially defines the flow of gases from the combustion chamber (no represented) of the turbomachine and passing through the high-pressure turbine.
- a game (not shown) is left between the inner surface of the ring sectors 16 and the top of the rotor blades of the rotor of the turbine to allow rotation of the latter.
- a device is 18.
- This device consists in particular of a tube air collector 20 disposed around the housing 12 and supplied with air by the least one supply line 22 (only one is shown on the figure 1).
- the air collection tube 20 supplies an air with a plurality of angular sectors of air circulation boxes 24 which are fixed circumferentially on the casing 12 via rules of Fixing 26.
- the supply of air circulation housing sectors 24 is carried out by means of waterproof V-clamps 28 connected to the collecting tube 20.
- each housing sector 24 consists of three air circulation ramps spaced axially and substantially parallel to each other. Each of these ramps is pierced with a plurality of holes (not shown) that discharge air on the housing 14 to change the temperature.
- a plurality of air supply vents 30 are disposed through the housing 12. These mouths 30 are intended for supplying air to a stage of a low-pressure distributor (not shown in the figures) of the turbomachine arranged downstream of the high-pressure turbine.
- the invention provides a method of assembling these different stator elements of the turbine about its longitudinal axis X-X.
- this method consists in defining an angular distribution pattern of the stator elements 10 for a predetermined angular sector ⁇ , and in repeating the pattern over the entire circumference of the stator.
- the pattern of distribution of the elements of the stator 10 over a predetermined angular sector ⁇ is defined so as to avoid radial alignment between inter-sector areas of stator elements.
- the inter-sector zones are defined as zones located between two adjacent sectors of the same element of the stator.
- the predetermined angular sector ⁇ is advantageously chosen so as to correspond to an angular sector of housing 24.
- FIG. 2 illustrates an example of application of the method according to the invention.
- the predetermined angular sector ⁇ a has a sector of 60 °.
- stator elements 10 are arranged so as to avoid radial alignment between inter-sector areas of stator elements. More particularly, the angular distribution is chosen so as to avoid radial alignment between the inter-spacing zones 14a defined between two adjacent struts 14 and the inter-sector areas 24a of housing defined between two housing sectors 24 adjacent.
- Such a distribution of the spacers 14 with respect to the sectors housing 24 avoids radially aligning between areas of the 12 on which air is not discharged by the device of game control 18 (that is to say at the level of inter-sector zones 24a of housing) and inter-spacing zones 14a.
- the distribution pattern thus defined on the angular sector ⁇ a is then repeated over the entire circumference of the stator 10.
- the distribution pattern is repeated five times to cover the entire circumference of the stator.
- the distribution pattern is repeated over the entire circumference of the stator symmetrically in rotation with respect to the predetermined angular sector ⁇ a .
- the temperature distribution of the housing 12 is done so symmetrical around the entire circumference of the housing.
- thermal distortions of the housing 12 are substantially repetitive, which facilitates control.
- the angular distribution pattern of the stator elements 10 for the sector predetermined angle is also defined to align radially each air supply mouth 30 with an inter-sectoral area housing 24a.
- This particular arrangement of mouths air supply 30 also contributes to improving the homogeneity of crankcase temperature 12.
- the mouths 30 intended to to supply air a stage of a low-pressure distributor are each disposed between two housing sectors 24 adjacent.
- FIG. 3 illustrates another example of application of the method according to the invention.
- the selected angular sector ⁇ b has a sector of 90 °.
- This angular sector ⁇ b corresponds to an angular sector of housing 24.
- the elements of the stator 10 are arranged, on the one hand so as to avoid radial alignment between inter-sector areas of stator elements, and on the other hand so as to radially align each mouth of the stator. air supply 30 with an inter-sector housing area 24a.
- FIG. 4 illustrates another example of application of the method according to the invention.
- ⁇ c a sector of 30 ° corresponding to an angular sector of housing 24.
- each angular sector of housing of air circulation 24 is associated three spacers 14 and a mouth 30.
- the high-pressure turbine stator 10 comprises N angular sectors of air flow boxes 24, 3N spacers 14, N air supply vents 30, and 6N sectors of ring 16.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
- la figure 1 est une vue en perspective d'un stator de turbine haute-pression selon l'invention ;
- la figure 2 est une vue schématique en coupe transversale du stator de la figure 1 ; et
- les figures 3 et 4 sont des vues schématiques en coupe transversale de stators selon d'autres modes de réalisation de l'invention.
secteurs de boítier 24 | entretoises 14 | bouches 30 | secteurs d'anneau 16 | |
A avec N=6 | 6 | 18 | 6 | 36 |
B avec N=4 | 4 | 12 | 4 | 24 |
C avec N=12 | 12 | 36 | 12 | 72 |
Claims (10)
- Procédé d'assemblage d'éléments sectorisés (14, 24) d'un stator annulaire (10) d'une turbine haute-pression de turbomachine autour d'un axe longitudinal (X-X) de ladite turbine, le stator comportant :un carter annulaire (12) disposé autour de l'axe longitudinal (X-X) de la turbine haute-pression ;une pluralité d'entretoises (14) sectorisées et montées sur le carter (12) et sur lesquelles sont fixées une pluralité de secteurs d'anneau (16) disposés circonférentiellement autour de l'axe longitudinal (X-X) de la turbine de façon à former une surface circulaire continue entourant des aubes mobiles d'un rotor de la turbine ; etune pluralité de secteurs angulaires de boítiers de circulation d'air (24) disposés circonférentiellement autour du carter (12) et destinés à décharger de l'air sur le carter afin de permettre le pilotage du jeu en sommet des aubes mobiles du rotor de la turbine ;définir un motif de répartition angulaire des éléments du stator pour un secteur angulaire prédéterminé (ψ), le motif étant défini de façon à éviter un alignement radial entre les zones inter-entretoises (14a) définies entre deux entretoises (14) adjacentes et les zones inter-secteurs de boítier (24a) définies entre deux secteurs de boítier (24) adjacents ; et àrépéter ledit motif de répartition sur toute la circonférence du stator.
- Procédé selon la revendication 1, caractérisé en ce que le motif de répartition angulaire est répété de façon symétrique en rotation par rapport au secteur angulaire prédéterminé (ψ).
- Procédé selon l'une des revendications 1 et 2, dans lequel les éléments du stator se composent en outre d'une pluralité de bouches d'alimentation en air (30) disposées au travers du carter (12) et destinées à alimenter en air un étage d'un distributeur basse-pression de la turbomachine disposé en aval de la turbine haute-pression, caractérisé en ce que ledit procédé consiste en outre à aligner radialement chaque bouche d'alimentation en air (30) avec une zone inter-secteurs de boítier (24a).
- Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'au secteur angulaire prédéterminé (ψ) correspond un secteur angulaire de boítier de circulation d'air (24).
- Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'à chaque secteur angulaire de boítier de circulation d'air (24) est associé trois entretoises (14) et une bouche d'alimentation en air (30).
- Procédé selon la revendication 5, caractérisé en ce qu'à chaque entretoise (14) est associé deux secteurs d'anneau (16).
- Stator d'une turbine haute-pression de turbomachine, comportant les éléments suivant :un carter annulaire (12) disposé autour d'un axe longitudinal (X-X) de la turbine haute-pression ;une pluralité d'entretoises (14) sectorisées et montées sur le carter (12) et sur lesquelles sont fixées une pluralité de secteurs d'anneau (16) disposés circonférentiellement autour de l'axe longitudinal (X-X) de la turbine haute-pression de façon à former une surface circulaire continue entourant des aubes mobiles d'un rotor de la turbine haute-pression ;une pluralité de secteurs angulaires de boítiers de circulation d'air (24) disposés circonférentiellement autour du carter (12) et destinés à décharger de l'air sur le carter afin de permettre le pilotage du jeu en sommet des aubes mobiles du rotor de la turbine haute-pression ; etune pluralité de bouches d'alimentation en air (30) disposées au travers du carter (12) et destinées à alimenter en air un étage d'un distributeur basse-pression de la turbomachine disposé en aval de la turbine haute-pression ;
- Stator selon la revendication 7, caractérisé en ce que les éléments du stator sont répartis angulairement autour de l'axe longitudinal (X-X) de la turbine haute-pression en outre de façon à aligner radialement chaque bouche d'alimentation en air (30) avec une zone inter-secteurs de boítier (24a).
- Stator selon l'une des revendications 7 et 8, caractérisé en ce qu'il comporte N secteurs angulaires de boítiers de circulation d'air (24), 3N entretoises (14), et N bouches d'alimentation en air (30).
- Stator selon la revendication 9, caractérisé en ce qu'il comporte 6N secteurs d'anneau (16).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0402825A FR2867805A1 (fr) | 2004-03-18 | 2004-03-18 | Stator de turbine haute-pression de turbomachine et procede d'assemblage |
FR0402825 | 2004-03-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1577501A1 true EP1577501A1 (fr) | 2005-09-21 |
EP1577501B1 EP1577501B1 (fr) | 2006-11-29 |
Family
ID=34834195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05290319A Active EP1577501B1 (fr) | 2004-03-18 | 2005-02-14 | Stator de turbine haute-pression de turbomachine et procédé d'assemblage |
Country Status (9)
Country | Link |
---|---|
US (1) | US7360987B2 (fr) |
EP (1) | EP1577501B1 (fr) |
JP (1) | JP4526420B2 (fr) |
CA (1) | CA2500493C (fr) |
DE (1) | DE602005000290T2 (fr) |
ES (1) | ES2273318T3 (fr) |
FR (1) | FR2867805A1 (fr) |
RU (1) | RU2374459C2 (fr) |
UA (1) | UA87968C2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2182175A2 (fr) * | 2008-10-30 | 2010-05-05 | General Electric Company | Structure de boîtier et procédé pour améliorer la reponse thermique d'une turbine pendant des modes operatoires transitoires et stables |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009031009A1 (de) * | 2009-06-29 | 2010-12-30 | Osram Opto Semiconductors Gmbh | Strahlungsemittierendes Bauelement |
DE102015215144B4 (de) | 2015-08-07 | 2017-11-09 | MTU Aero Engines AG | Vorrichtung und Verfahren zum Beeinflussen der Temperaturen in Innenringsegmenten einer Gasturbine |
US10443616B2 (en) | 2016-03-16 | 2019-10-15 | United Technologies Corporation | Blade outer air seal with centrally mounted seal arc segments |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3146992A (en) * | 1962-12-10 | 1964-09-01 | Gen Electric | Turbine shroud support structure |
EP0892152A1 (fr) * | 1997-07-18 | 1999-01-20 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" | Dispositif de refroisissement ou d'échauffement d'un carter circulaire |
EP0892153A1 (fr) * | 1997-07-18 | 1999-01-20 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" | Dispositif d'échauffement ou de refroidissement d'un carter circulaire |
EP1205637A1 (fr) * | 2000-11-09 | 2002-05-15 | Snecma Moteurs | Ensemble de ventilation d'un anneau de stator |
EP1258599A2 (fr) * | 2001-03-23 | 2002-11-20 | General Electric Company | Procédé d'assemblage et appareil pour maintenir le jeu des extrémités des aubes |
US20040018084A1 (en) * | 2002-05-10 | 2004-01-29 | Halliwell Mark A. | Gas turbine blade tip clearance control structure |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5100291A (en) * | 1990-03-28 | 1992-03-31 | General Electric Company | Impingement manifold |
US5281085A (en) * | 1990-12-21 | 1994-01-25 | General Electric Company | Clearance control system for separately expanding or contracting individual portions of an annular shroud |
US5205115A (en) * | 1991-11-04 | 1993-04-27 | General Electric Company | Gas turbine engine case counterflow thermal control |
US5219268A (en) * | 1992-03-06 | 1993-06-15 | General Electric Company | Gas turbine engine case thermal control flange |
-
2004
- 2004-03-18 FR FR0402825A patent/FR2867805A1/fr active Pending
-
2005
- 2005-02-14 DE DE602005000290T patent/DE602005000290T2/de active Active
- 2005-02-14 EP EP05290319A patent/EP1577501B1/fr active Active
- 2005-02-14 ES ES05290319T patent/ES2273318T3/es active Active
- 2005-03-04 CA CA2500493A patent/CA2500493C/fr active Active
- 2005-03-07 US US11/072,280 patent/US7360987B2/en active Active
- 2005-03-11 JP JP2005068906A patent/JP4526420B2/ja active Active
- 2005-03-14 RU RU2005106888/06A patent/RU2374459C2/ru active
- 2005-03-18 UA UAA200502480A patent/UA87968C2/ru unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3146992A (en) * | 1962-12-10 | 1964-09-01 | Gen Electric | Turbine shroud support structure |
EP0892152A1 (fr) * | 1997-07-18 | 1999-01-20 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" | Dispositif de refroisissement ou d'échauffement d'un carter circulaire |
EP0892153A1 (fr) * | 1997-07-18 | 1999-01-20 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" | Dispositif d'échauffement ou de refroidissement d'un carter circulaire |
EP1205637A1 (fr) * | 2000-11-09 | 2002-05-15 | Snecma Moteurs | Ensemble de ventilation d'un anneau de stator |
EP1258599A2 (fr) * | 2001-03-23 | 2002-11-20 | General Electric Company | Procédé d'assemblage et appareil pour maintenir le jeu des extrémités des aubes |
US20040018084A1 (en) * | 2002-05-10 | 2004-01-29 | Halliwell Mark A. | Gas turbine blade tip clearance control structure |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2182175A2 (fr) * | 2008-10-30 | 2010-05-05 | General Electric Company | Structure de boîtier et procédé pour améliorer la reponse thermique d'une turbine pendant des modes operatoires transitoires et stables |
EP2182175A3 (fr) * | 2008-10-30 | 2013-10-09 | General Electric Company | Structure de boîtier et procédé pour améliorer la reponse thermique d'une turbine pendant des modes operatoires transitoires et stables |
Also Published As
Publication number | Publication date |
---|---|
US20050238477A1 (en) | 2005-10-27 |
RU2005106888A (ru) | 2006-08-20 |
CA2500493C (fr) | 2012-01-10 |
EP1577501B1 (fr) | 2006-11-29 |
UA87968C2 (ru) | 2009-09-10 |
CA2500493A1 (fr) | 2005-09-18 |
DE602005000290D1 (de) | 2007-01-11 |
US7360987B2 (en) | 2008-04-22 |
JP2005264935A (ja) | 2005-09-29 |
DE602005000290T2 (de) | 2007-06-21 |
FR2867805A1 (fr) | 2005-09-23 |
ES2273318T3 (es) | 2007-05-01 |
JP4526420B2 (ja) | 2010-08-18 |
RU2374459C2 (ru) | 2009-11-27 |
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