EP0909924B1 - Aufhängung einer ringförmigen Gasturbinen-Brennkammer - Google Patents
Aufhängung einer ringförmigen Gasturbinen-BrennkammerInfo
- Publication number
- EP0909924B1 EP0909924B1 EP98117869A EP98117869A EP0909924B1 EP 0909924 B1 EP0909924 B1 EP 0909924B1 EP 98117869 A EP98117869 A EP 98117869A EP 98117869 A EP98117869 A EP 98117869A EP 0909924 B1 EP0909924 B1 EP 0909924B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- combustion chamber
- gas turbine
- suspension
- leg
- arm structure
- 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.)
- Expired - Lifetime
Links
- 239000000725 suspension Substances 0.000 title claims description 15
- 238000002485 combustion reaction Methods 0.000 description 52
- 238000001816 cooling Methods 0.000 description 5
- 230000001154 acute effect Effects 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/42—Continuous combustion chambers using liquid or gaseous fuel characterised by the arrangement or form of the flame tubes or combustion chambers
- F23R3/60—Support structures; Attaching or mounting means
-
- 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
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
- F01D25/162—Bearing supports
- F01D25/164—Flexible supports; Vibration damping means associated with the bearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2230/00—Manufacture
- F05B2230/60—Assembly methods
- F05B2230/604—Assembly methods using positioning or alignment devices for aligning or centering, e.g. pins
- F05B2230/606—Assembly methods using positioning or alignment devices for aligning or centering, e.g. pins using maintaining alignment while permitting differential dilatation
-
- 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
- F05D2230/642—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins using maintaining alignment while permitting differential dilatation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
- F23R2900/03041—Effusion cooled combustion chamber walls or domes
Definitions
- the invention relates to the suspension of an annular gas turbine combustion chamber in the outlet area of the same on a housing wall, according to the preamble of the main claim.
- Annular combustion chambers of gas turbines are usually located in their front End area through the projecting into the combustion chamber interior Burner carried while they are in the rear end area, the so-called exit area, suitable on a housing wall, the so-called “combustion chamber outer casing ", in particular in the case of an effusion-cooled Combustion chamber wall with a large number of cooling air through openings, the so-called effusion holes, care must be taken that the rear combustion chamber wall section also has sufficient cooling experiences.
- the support structure for the combustion chamber suspension may be in thus do not hinder effective cooling in this area.
- This ring-shaped, bent arm structure, related to the gas turbine longitudinal axis has an inner and an outer leg, is in Experts also known under the term "hair-pin" (hairpin).
- the inner one Leg closes an acute angle with the outer leg one, as is the inner leg opposite the combustion chamber wall inclined at an acute angle, creating a wedge-shaped annular gap between the inner leg and the combustion chamber wall results in the flow direction of the along the outside of the outer combustion chamber wall Cooling air flow is considered open. In this way, optimal Way to get cooling air to the rear end of the combustion chamber wall.
- An angled displacement of the arm structure of an annular combustion chamber also shows GB 1578474 A. On its outside leg points this arm structure has recesses.
- the European patent application EP 521 687 A1 shows the storage of a annular gas turbine combustion chamber, in which an angled arm structure is integrally formed with the combustion chamber wall. The outer The edge of this arm structure is between two components of the housing wall clamped. An additional flange is not provided.
- the invention is based on the object of a suspension of an annular To create gas turbine combustion chamber of the type mentioned at the outset, which is simple while avoiding the disadvantages of the prior art is constructed, can be used reliably and can be manufactured inexpensively can.
- the object is characterized by the features of the main claim solved, the subclaims show further advantageous embodiments of the Invention.
- Reference number 1 denotes an annular combustion chamber of a gas turbine, which is designed here as a stepped combustion chamber and thus next to one
- a plurality of ring-shaped pilot burners 2 furthermore on the end side also has annularly arranged main burners 3.
- the combustion chamber 1 is on a housing wall 7 surrounding the entire combustion chamber structure.
- An annular, kinked design is provided for this Arm structure 8, located on the end portion of the outer combustion chamber wall 9a connects.
- openings 13 in the arm structure 8 or in the legs 8a, 8b are so-called openings 13 in the arm structure 8 or in the legs 8a, 8b. If these openings or openings 13 in at least one the leg 8a, 8b, but preferably suitable in both legs 8a, 8b dimensioned and arranged, the arm structure 8 acts like one Leaf spring with customizable spring characteristics. Best results were with the design and arrangement explained below achieved by openings 13 in the arm structure 8.
- the openings 13 are dovetail-shaped designed and distributed equally over the circumference of both legs 8a, 8b arranged, the narrowest sections of the openings of each Kink line 10 of the arm structure 8 are facing.
- the breakthroughs 13 open to the crease line, so that - after these openings in the outer leg 8b and in the inner leg 8a in the illustration 1, as it were, one above the other - between each breakdown 13 in the outer leg 8b and the adjacent opening 13 there is a so-called connection gap 14 in the inner leg 8a.
- openings 13 with respect to the burners 2 offset in the circumferential direction, so that the cutting planes 15 of the individual burners 2, 3, for example, exactly in the middle between two each other neighboring openings 13 would come to rest (not shown).
- any other intermediate positions are also possible Openings 13 in the legs 8a and / or 8b with respect to the burner cutting planes 15th
- each burner cutting plane 15 in the two legs 8a, 8b exactly one opening 13 provided, i.e. a quotient of the number of openings 13 in one of the legs 8a or 8b (counted over its entire circumference) and the total number of burners 2, 3 and gives exactly the value "1".
- this quotient “(number of breakthroughs) / (total number the burner) "but also assume other meaningful values, for example 0.5 or 1.5 but also 2 or 2.5 or 3, the integer values of this Quotients have the advantage of simple periodic repetition.
- different numerical values may be useful for the quotient mentioned, than for graded ones Combustion chambers (as shown here).
- the inner combustion chamber wall 9b has a receptacle at the end 16 for the guide vane ring adjoining the combustion chamber 1 6, so that this over the combustion chamber 1 and its advantageous Suspension is also kept in an optimal manner.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
- Fig. 1
- einen Teilschnitt durch eine Gasturbinen-Ring-Brennkammer mit einer erfindungsgemäßen Aufhängung,
- Fig. 2
- die Ansicht X aus Fig. 1 als Teil-Abwicklung der ringförmigen Armstruktur, sowie
- Fig. 3
- wesentliche Elemente der Ansicht A aus Fig. 1.
- 1
- Ring-Brennkammer
- 2
- Pilot-Brenner
- 3
- Haupt-Brenner
- 4
- Austrittsbereich
- 5
- Leitschaufel
- 6
- Leitschaufelring
- 7
- Gehäusewand
- 7a
- Flansch
- 8
- Armstruktur
- 8a
- innerer Schenkel von 8
- 8b
- äußerer Schenkel von 8
- 8c
- Flansch
- 9a
- äußere Brennkammerwand
- 9b
- innere Brennkammerwand
- 10
- Knicklinie
- 11
- Gasturbinen-Längsachse
- 12
- Verbindungselement: Schraube-Mutter-Verbindung
- 13
- Durchbrechung
- 14
- Verbindungslücke
- 15
- Schnittebene
- 16
- Aufnahme
- 17
- Dichtung
- 18
- Niet
Claims (3)
- Aufhängung einer ringförmigen Gasturbinen-Brennkammer (1) im Austrittsbereich (4) derselben an einer Gehäusewand (7), über eine sich an die äußere Brennkammerwand (9a) anschließende, ringförmige, geknickt ausgebildete Armstruktur (8), die in Bezug auf die Gasturbinen-Längsachse (11) einen äußeren und einen inneren Schenkel (8b, 8a) aufweist, , wobei sich an den äußeren Schenkel (8b) ein Flansch (8c) anschließt, der über ein lösbares Verbindungselement (12) fest mit der Gehäusewand (7) verbunden ist, dadurch gekennzeichnet dass beide Schenkel (8a, 8b) über dem Umfang gleichartig verteilt angeordnete, schwalbenschwanzförmige Durchbrechungen (13) aufweisen, deren engste Abschnitte der Knicklinie (10) der Armstruktur (8) zugewandt und zur Knicklinie (10) hin offen sind, so dass zwischen jeder Durchbrechung (13) im äußeren Schenkel (8b) und der benachbarten Durchbrechung (13) im inneren Schenkel (8a) eine Verbindungslücke (14) vorliegt.
- Aufhängung einer ringförmigen Gasturbinen-Brennkammer nach Anspruch 1, mit einer Vielzahl von über dem Brennkammer-Umfang gleichmäßig verteilt angeordneten Brennern (2, 3),
dadurch gekennzeichnet, dass über den Umfang der Armstruktur (8) betrachtet die Anzahl der Durchbrechungen (13) in zumindest einem der Schenkel (8a, 8b) ein n-faches der Anzahl der Brenner (2, 3) ist, mit n = 0,5 oder 1,0 oder 1,5 oder 2,0 oder 2,5 oder 3,0. - Aufhängung einer ringförmigen Gasturbinen-Brennkammer nach Anspruch 1, mit über dem Brennkammer-Umfang gleichmäßig verteilt sowie versetzt zueinander angeordneten Pilot-Brennern (2) und Haupt-Brennern (3),
dadurch gekennzeichnet, dass in der Schnittebene (15) jedes Brenners (2, 3) zumindest in einem der Schenkel (8a, 8b) eine Durchbrechung (13) vorgesehen ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19745683 | 1997-10-16 | ||
| DE19745683A DE19745683A1 (de) | 1997-10-16 | 1997-10-16 | Aufhängung einer ringförmigen Gasturbinen-Brennkammer |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0909924A2 EP0909924A2 (de) | 1999-04-21 |
| EP0909924A3 EP0909924A3 (de) | 2000-08-02 |
| EP0909924B1 true EP0909924B1 (de) | 2003-07-16 |
Family
ID=7845693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98117869A Expired - Lifetime EP0909924B1 (de) | 1997-10-16 | 1998-09-21 | Aufhängung einer ringförmigen Gasturbinen-Brennkammer |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6131384A (de) |
| EP (1) | EP0909924B1 (de) |
| DE (2) | DE19745683A1 (de) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2825787B1 (fr) * | 2001-06-06 | 2004-08-27 | Snecma Moteurs | Montage de chambre de combustion cmc de turbomachine par viroles de liaison souples |
| FR2825785B1 (fr) | 2001-06-06 | 2004-08-27 | Snecma Moteurs | Liaison de chambre de combustion cmc de turbomachine en deux parties |
| FR2825781B1 (fr) * | 2001-06-06 | 2004-02-06 | Snecma Moteurs | Montage elastique de chambre ce combustion cmc de turbomachine dans un carter metallique |
| FR2825783B1 (fr) | 2001-06-06 | 2003-11-07 | Snecma Moteurs | Accrochage de chambre de combustion cmc de turbomachine par pattes brasees |
| FR2825782A1 (fr) * | 2001-06-06 | 2002-12-13 | Snecma Moteurs | Montage flottant radial de chambre de combustion cmc de turbomachine dans un carter metallique |
| FR2825784B1 (fr) | 2001-06-06 | 2003-08-29 | Snecma Moteurs | Accrochage de chambre de combustion cmc de turbomachine utilisant les trous de dilution |
| SE519323C2 (sv) * | 2001-06-28 | 2003-02-11 | Volvo Aero Ab | Moduluppbyggd gasturbin |
| FR2829228B1 (fr) * | 2001-08-28 | 2005-07-15 | Snecma Moteurs | Chambre de combustion annulaire a double tete etagee |
| FR2840974B1 (fr) * | 2002-06-13 | 2005-12-30 | Snecma Propulsion Solide | Anneau d'etancheite pour cahmbre de combustion et chambre de combustion comportant un tel anneau |
| US7025563B2 (en) * | 2003-12-19 | 2006-04-11 | United Technologies Corporation | Stator vane assembly for a gas turbine engine |
| US7229247B2 (en) * | 2004-08-27 | 2007-06-12 | Pratt & Whitney Canada Corp. | Duct with integrated baffle |
| FR2890156A1 (fr) * | 2005-08-31 | 2007-03-02 | Snecma | Chambre de combustion d'une turbomachine |
| US7909570B2 (en) * | 2006-08-25 | 2011-03-22 | Pratt & Whitney Canada Corp. | Interturbine duct with integrated baffle and seal |
| FR2913051B1 (fr) * | 2007-02-28 | 2011-06-10 | Snecma | Etage de turbine dans une turbomachine |
| US8511089B2 (en) * | 2009-07-31 | 2013-08-20 | Rolls-Royce Corporation | Relief slot for combustion liner |
| EP2397762A1 (de) * | 2010-06-17 | 2011-12-21 | Siemens Aktiengesellschaft | Dämpfvorrichtung zum Dämpfen von Druckschwingungen in einer Brennkammer einer Turbine |
| DE102015212573A1 (de) * | 2015-07-06 | 2017-01-12 | Rolls-Royce Deutschland Ltd & Co Kg | Gasturbinenbrennkammer mit integriertem Turbinenvorleitrad sowie Verfahren zu deren Herstellung |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2702987A (en) * | 1952-06-11 | 1955-03-01 | Nicolin Curt Rene | Expansible element for connecting pipes of different diameters |
| US3670497A (en) * | 1970-09-02 | 1972-06-20 | United Aircraft Corp | Combustion chamber support |
| GB1578474A (en) * | 1976-06-21 | 1980-11-05 | Gen Electric | Combustor mounting arrangement |
| FR2402068A1 (fr) * | 1977-09-02 | 1979-03-30 | Snecma | Chambre de combustion anti-pollution |
| US4191011A (en) * | 1977-12-21 | 1980-03-04 | General Motors Corporation | Mount assembly for porous transition panel at annular combustor outlet |
| US4483149A (en) * | 1982-05-20 | 1984-11-20 | United Technologies Corporation | Diffuser case for a gas turbine engine |
| US5323605A (en) * | 1990-10-01 | 1994-06-28 | General Electric Company | Double dome arched combustor |
| US5161940A (en) * | 1991-06-21 | 1992-11-10 | Pratt & Whitney Canada, Inc. | Annular support |
| CA2070518C (en) * | 1991-07-01 | 2001-10-02 | Adrian Mark Ablett | Combustor dome assembly |
| CA2089302C (en) * | 1992-03-30 | 2004-07-06 | Joseph Frank Savelli | Double annular combustor |
| US5333443A (en) * | 1993-02-08 | 1994-08-02 | General Electric Company | Seal assembly |
| FR2723177B1 (fr) * | 1994-07-27 | 1996-09-06 | Snecma | Chambre de combustion comportant une double paroi |
| DE19600837A1 (de) * | 1996-01-12 | 1997-07-17 | Bmw Rolls Royce Gmbh | Axial gestufte Ring-Brennkammer einer Gasturbine |
| US5619855A (en) * | 1995-06-07 | 1997-04-15 | General Electric Company | High inlet mach combustor for gas turbine engine |
-
1997
- 1997-10-16 DE DE19745683A patent/DE19745683A1/de not_active Withdrawn
-
1998
- 1998-08-14 US US09/134,578 patent/US6131384A/en not_active Expired - Fee Related
- 1998-09-21 EP EP98117869A patent/EP0909924B1/de not_active Expired - Lifetime
- 1998-09-21 DE DE59809015T patent/DE59809015D1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US6131384A (en) | 2000-10-17 |
| EP0909924A2 (de) | 1999-04-21 |
| EP0909924A3 (de) | 2000-08-02 |
| DE59809015D1 (de) | 2003-08-21 |
| DE19745683A1 (de) | 1999-04-22 |
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