EP1384950A2 - Ringförmige Brennkammer für eine Gasturbine - Google Patents
Ringförmige Brennkammer für eine Gasturbine Download PDFInfo
- Publication number
- EP1384950A2 EP1384950A2 EP03405504A EP03405504A EP1384950A2 EP 1384950 A2 EP1384950 A2 EP 1384950A2 EP 03405504 A EP03405504 A EP 03405504A EP 03405504 A EP03405504 A EP 03405504A EP 1384950 A2 EP1384950 A2 EP 1384950A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- combustion chamber
- lining segments
- segments
- chamber according
- divided
- 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
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
- F23R3/50—Combustion chambers comprising an annular flame tube within an annular casing
Definitions
- the present invention relates to the field of gas turbine technology. It relates to an annular combustion chamber for a gas turbine according to the Preamble of claim 1.
- Such a combustion chamber as e.g. 3 is shown at Gas turbines in use for a long time.
- the combustion chamber 26, which is part of a gas turbine, not shown and of which only the section above the turbine axis is reproduced extends in the longitudinal direction along the turbine axis in Flow direction (from right to left in Fig. 3).
- On the entry page (right Page in Fig. 3) is a number on a circular ring concentric to the turbine axis distributed by burners 27, which in the present case are known as so-called Double cone burners are designed according to EP 0321809.
- burners 27 which in the present case are known as so-called Double cone burners are designed according to EP 0321809.
- the swirling fuel-air mixture emerging from the burners 27 burns with flame formation in the primary zone following the burner 27 30 and the resulting hot gases emerge from the combustion chamber 26 at one Combustion chamber outlet 31 out and into the subsequent turbine section, where it expand under work performance.
- Protecting gases are on the inside of the combustion chamber walls 29 special lining segments ("liner segments") 28 arranged and attached.
- the lining segments 28 are continuous in the axial direction and therefore as long as the interior of the combustion chamber 26. This has the advantage that the number of parts and the length of the leaky column is minimal.
- the known configuration of the lining segments has the disadvantage that that the segments are comparatively long. This creates in terms of manufacturability and mechanical integrity problems. These problems will be even larger and possibly not solvable if for very large gas turbines correspondingly large combustion chambers with very long lining segments are needed.
- the object is achieved by the entirety of the features of claim 1.
- the essence of the invention is that in a combustion chamber the mentioned type, the lining segments in the axial direction in several successive arranged parts are divided. By dividing the individual Partial elements smaller, which simplifies their manufacture and the mechanical stability increased. At the same time, the assembly of the segments is simplified.
- the lining segments according to a preferred embodiment of the invention in two parts are divided when the liner segments are divided where the flow rate the hot gases is low, or if the liner segments are divided such that the lengths of the individual segment parts in axial direction are approximately the same.
- the assembly can be further simplified if according to another embodiment the invention the lining segments attached to segment carriers are, and the segment carrier also divided into several parts in the axial direction are.
- the lining segments are preferably convection-cooled.
- the divided lining segments can be separately convection-cooled be through the downstream portions of the liner segments flowing cooling medium into the hot gas flow of the combustion chamber becomes.
- Connection channels are provided through which the convectively cooling cooling medium from one part of the lining segments to the other part of the lining segments can flow.
- Fig. 1 is a section through a combustion chamber arranged in a gas turbine with lining segments subdivided in the axial direction according to a preferred Embodiment of the invention reproduced.
- the gas turbine 10 from which is only shown a part lying above the turbine axis has one outer turbine housing 11 on which a filled with compressed air Surrounds plenum 12, in which the actual annular combustion chamber 13 is arranged is.
- the flow course takes place from right to left in FIG. 1.
- burners 14, 15 which in two
- the fuel-air mixture enters the primary zone one above the other 32 blown into the combustion chamber 13 and burns there with the formation of flames.
- the resulting hot gases pass through the combustion chamber outlet 33 out of the combustion chamber 13 and into the subsequent turbine.
- the combustion chamber 13 is separated from the surrounding plenum by several segment carriers 18, .., 21 12 separated.
- segment carriers 18, .., 21 On the inner walls of the segment carrier 18, .., 21 are in axial First and second lining segments 16 and 17 fastened in the direction one behind the other, with inner (in Fig. 1 lower) and outer (in Fig. 1 upper) lining segments are provided.
- the split liner segments 16, 17 have about the same (axial) length and are separated where the corresponding ones Butt segment carriers 19, 20 and 18, 21 together.
- the place where the butted divided liner segments 16, 17 (space 24 in Fig. 2), is where the flow rate of the hot gases is low.
- the split liner segments 16, 17 are convection cooled in the same way, as is already the case with the undivided lining segments is.
- the division of the segment carriers 18, .., 21 ensures that the assembly is simplified. This applies in particular to the inner (lower) lining. If the inner lining is assembled from two parts, the Separation gap screwed along the entire length. The dividing line the segment carrier 18, 21 for the second lining segments 17 are for Bolt accessible so that a wedge is no longer needed.
- the division of the lining segments according to the invention makes it possible to to realize larger combustion chambers without having correspondingly large ones Segments must be constructed. This way you can look at already proven ones Use segment sizes.
- the invention also makes it possible in different Gas turbines have the same burners 14, 15 and first liner segments 16 to use. Adapted to different turbine inlet geometries then only the combustion chamber outlet 33 with the second lining segments 17 and their segment carriers 18, 21.
- the configuration of the liner segments 16, 17 is the same as for the EV and SEV combustion chambers of the known gas turbines of the applicant of the type GT24B and GT26B (see the article by D. K. Mukherjee "State-of-the-art gas turbines - a brief update ", ABB review 2/1997, pp. 4-14 (1997)).
- a specialty is the provision of connecting channels 22, 23 (Fig. 1 and Fig. 2) between the second liner segments 17 and the first liner segments 16. Through these connecting channels 22, 23 for the convective cooling of the Lining segments 16, 17 used cooling air from the second lining segments 17 flow into the first lining segments 16 and there to Contribute cooling.
- the cooling system of the second liner segments 17 is operated only with a part of the total cooling mass flow to the flow velocities to avoid pressure drops in the connection channels 22, 23 to keep small.
- the transition area between the inner second and first liner segments 17 and 16 is in Fig. 2 shown enlarged.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
- Fig. 1
- einen Schnitt durch eine in einer Gasturbine angeordnete Brennkammer mit in axialer Richtung unterteilten Auskleidungssegmenten gemäss einem bevorzugten Ausführungsbeispiel der Erfindung;
- Fig. 2
- einen vergrösserten Ausschnitt aus der Darstellung der Fig. 1; und
- Fig. 3
- einen Schnitt durch eine ringförmige Brennkammer nach dem Stand der Technik.
- 10
- Gasturbine
- 11
- äusseres Turbinengehäuse
- 12
- Plenum
- 13,26
- Brennkammer (ringförmig)
- 14,15,27
- Brenner
- 16,17
- Auskleidungssegment
- 18,..,21
- Segmentträger
- 22,23
- Verbindungskanal
- 24
- Zwischenraum
- 25
- Teilstrom
- 28
- Auskleidungssegment
- 29
- Brennkammerwand
- 30,32
- Primärzone
- 31,33
- Brennkammeraustritt
Claims (10)
- Ringförmige Brennkammer (13) für eine Gasturbine (10), in welche Brennkammer (13) auf einer Eintrittsseite Brenner (14, 15) münden, und welche Brennkammer (13) sich in axialer Richtung von der Eintrittsseite zu einer Austrittsseite (33) erstreckt und auf den Innenseiten zum Schutz vor den heissen Gasen mit gekühlten Auskleidungssegmenten (16, 17) ausgekleidet ist, dadurch gekennzeichnet, dass die Auskleidungssegmente (16, 17) in axialer Richtung in mehrere hintereinander angeordnete Teile (16, 17) unterteilt sind.
- Brennkammer nach Anspruch 1, dadurch gekennzeichnet, dass die Auskleidungssegmente (16, 17) in zwei Teile (16, 17) unterteilt sind.
- Brennkammer nach Anspruch 2, dadurch gekennzeichnet, dass die Auskleidungssegmente (16, 17) dort unterteilt sind, wo die Strömungsgeschwindigkeit der heissen Gase niedrig ist.
- Brennkammer nach Anspruch 3, dadurch gekennzeichnet, dass die Auskleidungssegmente (16, 17) derart unterteilt sind, dass die Längen der einzelnen Segmentteile (16, 17) in axialer Richtung in etwa gleich sind.
- Brennkammer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Auskleidungssegmente (16, 17) an Segmentträgern (18,..,21) befestigt sind, und dass die Segmentträger (18,..,21) ebenfalls in axialer Richtung in mehrere Teile (18,..,21) unterteilt sind.
- Brennkammer nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Auskleidungssegmente (16, 17) konvektionsgekühlt sind.
- Brennkammer nach Anspruch 6, dadurch gekennzeichnet, dass die unterteilten Auskleidungssegmente (16, 17) separat konvektionsgekühlt sind.
- Brennkammer nach Anspruch 7, dadurch gekennzeichnet, dass das durch die stromabwärts gelegenen Teile (17) der Auskleidungssegmente strömende Kühlmedium in den Heissgasstrom der Brennkammer (13) ausgelassen wird.
- Brennkammer nach Anspruch 6, dadurch gekennzeichnet, dass zwischen den unterteilten Auskleidungssegmenten (16, 17) Verbindungskanäle (22, 23) vorgesehen sind, durch welche das konvektiv kühlende Kühlmedium vom einen Teil (17) der Auskleidungssegmente in den anderen Teil (16) der Auskleidungssegmente strömen kann.
- Brennkammer nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass die stromabwärts gelegenen Teile (17) der Auskleidungssegmente nur von einem Teil des insgesamt für die Kühlung der Auskleidungssegmente vorgesehenen Massenstromes gekühlt werden.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10233805 | 2002-07-25 | ||
DE10233805A DE10233805B4 (de) | 2002-07-25 | 2002-07-25 | Ringförmige Brennkammer für eine Gasturbine |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1384950A2 true EP1384950A2 (de) | 2004-01-28 |
EP1384950A3 EP1384950A3 (de) | 2007-04-04 |
EP1384950B1 EP1384950B1 (de) | 2012-10-17 |
Family
ID=29796562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03405504A Expired - Lifetime EP1384950B1 (de) | 2002-07-25 | 2003-07-07 | Ringförmige Brennkammer für eine Gasturbine |
Country Status (3)
Country | Link |
---|---|
US (1) | US7350360B2 (de) |
EP (1) | EP1384950B1 (de) |
DE (1) | DE10233805B4 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2282124A1 (de) * | 2009-08-03 | 2011-02-09 | Alstom Technology Ltd | Verfahren zur Nachrüstung einer Brennkammer einer Gasturbine |
US9255484B2 (en) * | 2011-03-16 | 2016-02-09 | General Electric Company | Aft frame and method for cooling aft frame |
US9612017B2 (en) | 2014-06-05 | 2017-04-04 | Rolls-Royce North American Technologies, Inc. | Combustor with tiled liner |
US10465907B2 (en) | 2015-09-09 | 2019-11-05 | General Electric Company | System and method having annular flow path architecture |
US10598380B2 (en) | 2017-09-21 | 2020-03-24 | General Electric Company | Canted combustor for gas turbine engine |
US11047575B2 (en) | 2019-04-15 | 2021-06-29 | Raytheon Technologies Corporation | Combustor heat shield panel |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4446693A (en) | 1980-11-08 | 1984-05-08 | Rolls-Royce Limited | Wall structure for a combustion chamber |
EP0321809A1 (de) | 1987-12-21 | 1989-06-28 | BBC Brown Boveri AG | Verfahren für die Verbrennung von flüssigem Brennstoff in einem Brenner |
US5363643A (en) | 1993-02-08 | 1994-11-15 | General Electric Company | Segmented combustor |
EP1363075A2 (de) | 2002-05-16 | 2003-11-19 | United Technologies Corporation | Hitzeschildplatten für eine Gasturbinenbrennkammer |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH257279A (de) | 1946-01-14 | 1948-09-30 | Hunziker Reinhold | Fangvorrichtung für Kleintiere wie Mäuse. |
CH428324A (de) * | 1964-05-21 | 1967-01-15 | Prvni Brnenska Strojirna | Brennkammer |
US4567730A (en) * | 1983-10-03 | 1986-02-04 | General Electric Company | Shielded combustor |
US4628694A (en) * | 1983-12-19 | 1986-12-16 | General Electric Company | Fabricated liner article and method |
US5435127A (en) * | 1993-11-15 | 1995-07-25 | General Electric Company | Method and apparatus for boosting ram airflow to an ejection nozzle |
GB2298267B (en) * | 1995-02-23 | 1999-01-13 | Rolls Royce Plc | An arrangement of heat resistant tiles for a gas turbine engine combustor |
US6301877B1 (en) * | 1995-11-13 | 2001-10-16 | United Technologies Corporation | Ejector extension cooling for exhaust nozzle |
WO1998013645A1 (de) * | 1996-09-26 | 1998-04-02 | Siemens Aktiengesellschaft | Hitzeschildkomponente mit kühlfluidrückführung und hitzeschildanordnung für eine heissgasführende komponente |
DE19727407A1 (de) * | 1997-06-27 | 1999-01-07 | Siemens Ag | Hitzeschild |
US6606861B2 (en) * | 2001-02-26 | 2003-08-19 | United Technologies Corporation | Low emissions combustor for a gas turbine engine |
-
2002
- 2002-07-25 DE DE10233805A patent/DE10233805B4/de not_active Expired - Fee Related
-
2003
- 2003-07-07 EP EP03405504A patent/EP1384950B1/de not_active Expired - Lifetime
- 2003-07-23 US US10/625,467 patent/US7350360B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4446693A (en) | 1980-11-08 | 1984-05-08 | Rolls-Royce Limited | Wall structure for a combustion chamber |
EP0321809A1 (de) | 1987-12-21 | 1989-06-28 | BBC Brown Boveri AG | Verfahren für die Verbrennung von flüssigem Brennstoff in einem Brenner |
US5363643A (en) | 1993-02-08 | 1994-11-15 | General Electric Company | Segmented combustor |
EP1363075A2 (de) | 2002-05-16 | 2003-11-19 | United Technologies Corporation | Hitzeschildplatten für eine Gasturbinenbrennkammer |
Non-Patent Citations (1)
Title |
---|
D. K. MUKHERJEE: "State-of-the-art gas turbines - a brief update", ABB REVIEW, vol. 2, 1997, pages 4 - 14 |
Also Published As
Publication number | Publication date |
---|---|
EP1384950B1 (de) | 2012-10-17 |
US7350360B2 (en) | 2008-04-01 |
DE10233805B4 (de) | 2013-08-22 |
US20040154308A1 (en) | 2004-08-12 |
EP1384950A3 (de) | 2007-04-04 |
DE10233805A1 (de) | 2004-02-05 |
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