EP2049841A2 - Brennkammer einer verbrennungsanlage - Google Patents
Brennkammer einer verbrennungsanlageInfo
- Publication number
- EP2049841A2 EP2049841A2 EP07787170A EP07787170A EP2049841A2 EP 2049841 A2 EP2049841 A2 EP 2049841A2 EP 07787170 A EP07787170 A EP 07787170A EP 07787170 A EP07787170 A EP 07787170A EP 2049841 A2 EP2049841 A2 EP 2049841A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- combustion chamber
- gap
- liner
- region
- cooling
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 42
- 239000007789 gas Substances 0.000 claims abstract description 18
- 239000000112 cooling gas Substances 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims description 30
- 230000007704 transition Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 abstract 4
- 238000012423 maintenance Methods 0.000 description 2
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/08—Cooling thereof; Tube walls
-
- 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
- F23R3/002—Wall structures
Definitions
- the invention relates to a combustion chamber of a combustion plant, in particular a gas turbine, with a heat shield having at least two segments.
- combustion chambers of a combustion system such as a gas turbine, equipped with a so-called heat shield, which protects an underlying support structure from direct contact with a hot gas stream.
- a heat shield which protects an underlying support structure from direct contact with a hot gas stream.
- the longevity of the incinerator is crucial, so that the proper functioning of the heat shield must be guaranteed.
- modern heat shields usually consist of several segments, With several liner elements, gaps form between two adjacent liner elements into which a stream of hot gas can enter.
- a support element is often arranged which on the one hand carries at least one liner element and on the other hand is not protected in the worst case by the liner element from direct access contact with the hot gas stream and this is thus exposed unprotected.
- Such gaps thus constitute potential weak points.
- the gaps between the liner elements are to be protected from too high a temperature load.
- the invention deals with the problem of providing for a combustion chamber of the type mentioned in an improved embodiment, which is characterized in particular by a locally adapted cooling of a heat shield.
- the invention is based on the general idea of locally cooling a gap which is arranged between two liner elements of a heat shield and open towards a combustion chamber and thereby effectively protecting a support element arranged in the region of a split bottom from direct hot gas exposure.
- the heat protection shield provided for temperature protection has at least two segments, each of which comprises a, a combustion chamber facing liner element and a holding device which defines the liner element via a support member to a support structure.
- each liner element has an edge region which simultaneously forms a wall of a gap located between two liner elements and open towards the combustion chamber. In the area of a floor while a support member is arranged, which closes the gap on its side facing away from the combustion chamber.
- At least one through opening is provided in at least one edge region of a liner element and / or in the bottom, ie, in the support element, through which cooling gas flows into the gap, thereby cooling the film from the two edge regions adjoining liner elements formed gap walls.
- an effective cooling of the gap can be achieved without substantially increasing the oxygen content in the combustion chamber and thereby the NO x emissions of the incinerator.
- a passage opening are provided in only one of the two edge regions of the liner elements, in both edge regions, only in the bottom or at least one edge region and the bottom, so adapted depending on locally required cooling demand cooling by different arrangement of the through holes can be.
- the edge region of the liner element expediently engages behind a flange region formed by the holding device. This allows a reliable Mounting the liner element on the holding device on the support element or on the support structure, wherein in comparison to a direct screwing temperature expansions are easily absorbed. Such a holder of the liner elements thus reduces the risk of excessive voltages due to thermal expansion and thereby contributes to the longevity of the incinerator.
- At least the edge regions of the liner elements and / or the support element have a temperature protection layer in the region of the split bottom.
- a temperature protection layer improves the resistance of the liner elements or of the support element to a temperature load resulting from the hot gas flow and thereby increases the service life of the liner elements.
- the resistance of the liner elements or of the support element to a temperature load which is improved by the temperature protection layer, also reduces maintenance requirements since the temperature protection layers prolong the service life of the liner elements or the support elements. Prolonged life extend the maintenance intervals, which can significantly reduce the downtime of the incinerator and thus the incinerator itself can be operated more cost effective.
- Fig. 1 is a sectional view through an inventive
- Fig. 2 shows a possible arrangement of through holes in the gap.
- FIG. 1 is a sectional view through a combustion chamber wall of an incinerator, in particular a gas turbine, with a heat shield 1, which has at least two juxtaposed segments 2, 2 '.
- the two segments 2, 2 'each have a combustion element 3 facing a liner element 4 or 4' and a holding device 5, 5 '.
- the liner element 4 is, like the liner element 4 ', formed from a material insensitive to heat, so that it readily resists direct contact with hot gases present in the combustion chamber 3.
- the two liner elements 4, 4 ' are fixed via at least one support element 6 to a support structure 7, wherein the support device 5 defines both the liner element 4 and the at least one support element 6 on the support structure 7.
- a gap 10 for receiving thermal expansions of the two liner elements 4, 4' is provided according to FIG. 1, in which hot gas can penetrate during operation of the combustion chamber and leads there to a high temperature load .
- the gap 10 is closed by a gap bottom, which is formed, for example, by one or more support elements 6, 6 '.
- hot gas flowing into the gap 10 acts on a gap bottom almost directly on the support element 6 or 6' and adversely affect this with respect to its function, provided that the gap bottom is not opposed to it Flange portions 11, 11 'of the two liner elements 4, 4' is protected from direct contact with the hot gas stream.
- At least one through-opening 12 is provided in the edge region 8 of at least one liner element 4 or 4 'and / or in the bottom, ie in the support element 6, through which cooling gas can flow into the gap 10.
- the reaching into the gap cooling gas is previously used to cool the two liner elements 4, 4 'or flows directly from a cooling gas duct 13 through the support member 6 and between two adjacent support members 6, 6' into the gap 10.
- Both liner elements 4, 4 ' have these on their side facing away from the combustion chamber 3 side cooling fins 14, 14' on.
- the passage opening 12 between the cooling gas channel 13 and the gap bottom of the gap 10 can either be formed as a through hole or through hole 12 by a one-piece support member 6 or as a gap channel between two adjacent support members 6, 6 ', whereby a uniform cooling along the gap 10 Gap 10 is reached.
- at least the edge regions 8, 8 'of the liner elements 4, 4' and / or the support element 6 or 6 ' have a temperature protection layer in the region of the split bottom on. This lowers the sensitivity to temperature stress and increases the resistance of the components coated with the temperature layer.
- passage openings 12 are provided in both edge regions 8, 8 'as well as in the region of the gap bottom of gap 10, through which cooling gas can penetrate into gap 10.
- passage openings 12 are provided in both edge regions 8, 8 'as well as in the region of the gap bottom of gap 10, through which cooling gas can penetrate into gap 10.
- the edge region 8 or 8 'of the liner element 4 or 4' and / or the support element 6 can also be made to have at least one row of passage openings 12 running essentially parallel to the gap 10 in the region of the split bottom (cf. Fig. 2).
- a reduced cooling requirement only one row with several, but widely spaced, and formed with a small diameter through holes 12 are provided, while provided with high cooling requirements, multiple rows of closely spaced and each having a large diameter through holes 12 are.
- the solution according to the invention with an arrangement of passage openings 12 in the gap 10 which is adapted to a respective required cooling requirement makes it possible to achieve cooling adapted to the respective cooling requirement, in particular film cooling, which on one hand achieves the gap 10 with the adjacent liner elements 4, 4 'and the support member 6 sufficiently cool and on the other hand only just enough refrigerant gas in the gap 10 and in the combustion chamber 3 enters, as is essential for cooling. Too high a cooling gas flow, which is associated with a concomitant reduced efficiency of the incinerator, can be prevented as well as excessive NO x emissions of the incinerator.
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)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH12602006 | 2006-08-07 | ||
PCT/EP2007/056887 WO2008017551A2 (de) | 2006-08-07 | 2007-07-06 | Brennkammer einer verbrennungsanlage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2049841A2 true EP2049841A2 (de) | 2009-04-22 |
EP2049841B1 EP2049841B1 (de) | 2016-12-28 |
Family
ID=37400851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07787170.5A Active EP2049841B1 (de) | 2006-08-07 | 2007-07-06 | Brennkammer einer verbrennungsanlage |
Country Status (3)
Country | Link |
---|---|
US (1) | US8006498B2 (de) |
EP (1) | EP2049841B1 (de) |
WO (1) | WO2008017551A2 (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8495881B2 (en) * | 2009-06-02 | 2013-07-30 | General Electric Company | System and method for thermal control in a cap of a gas turbine combustor |
US8359865B2 (en) * | 2010-02-04 | 2013-01-29 | United Technologies Corporation | Combustor liner segment seal member |
US9534783B2 (en) * | 2011-07-21 | 2017-01-03 | United Technologies Corporation | Insert adjacent to a heat shield element for a gas turbine engine combustor |
US9021812B2 (en) | 2012-07-27 | 2015-05-05 | Honeywell International Inc. | Combustor dome and heat-shield assembly |
EP2711634A1 (de) * | 2012-09-21 | 2014-03-26 | Siemens Aktiengesellschaft | Hitzeschild mit einer Tragstruktur und Verfahren zum Kühlen der Tragstruktur |
US9651258B2 (en) | 2013-03-15 | 2017-05-16 | Rolls-Royce Corporation | Shell and tiled liner arrangement for a combustor |
EP2984317B1 (de) * | 2013-04-12 | 2019-03-13 | United Technologies Corporation | Kühlung des t-verbindungsstücks einer brennkammerplatte |
EP2952812B1 (de) * | 2014-06-05 | 2018-08-08 | General Electric Technology GmbH | Ringbrennkammer einer gasturbine und verkleidungssegment |
US10830433B2 (en) | 2016-11-10 | 2020-11-10 | Raytheon Technologies Corporation | Axial non-linear interface for combustor liner panels in a gas turbine combustor |
US10935236B2 (en) | 2016-11-10 | 2021-03-02 | Raytheon Technologies Corporation | Non-planar combustor liner panel for a gas turbine engine combustor |
US10655853B2 (en) | 2016-11-10 | 2020-05-19 | United Technologies Corporation | Combustor liner panel with non-linear circumferential edge for a gas turbine engine combustor |
US10935235B2 (en) | 2016-11-10 | 2021-03-02 | Raytheon Technologies Corporation | Non-planar combustor liner panel for a gas turbine engine combustor |
US10619854B2 (en) * | 2016-11-30 | 2020-04-14 | United Technologies Corporation | Systems and methods for combustor panel |
US10739001B2 (en) * | 2017-02-14 | 2020-08-11 | Raytheon Technologies Corporation | Combustor liner panel shell interface for a gas turbine engine combustor |
US10718521B2 (en) | 2017-02-23 | 2020-07-21 | Raytheon Technologies Corporation | Combustor liner panel end rail cooling interface passage for a gas turbine engine combustor |
US10677462B2 (en) | 2017-02-23 | 2020-06-09 | Raytheon Technologies Corporation | Combustor liner panel end rail angled cooling interface passage for a gas turbine engine combustor |
US10823411B2 (en) * | 2017-02-23 | 2020-11-03 | Raytheon Technologies Corporation | Combustor liner panel end rail cooling enhancement features for a gas turbine engine combustor |
US10830434B2 (en) | 2017-02-23 | 2020-11-10 | Raytheon Technologies Corporation | Combustor liner panel end rail with curved interface passage for a gas turbine engine combustor |
US10941937B2 (en) | 2017-03-20 | 2021-03-09 | Raytheon Technologies Corporation | Combustor liner with gasket for gas turbine engine |
US11098899B2 (en) | 2018-01-18 | 2021-08-24 | Raytheon Technologies Corporation | Panel burn through tolerant shell design |
US10830435B2 (en) | 2018-02-06 | 2020-11-10 | Raytheon Technologies Corporation | Diffusing hole for rail effusion |
US11248791B2 (en) | 2018-02-06 | 2022-02-15 | Raytheon Technologies Corporation | Pull-plane effusion combustor panel |
US11009230B2 (en) | 2018-02-06 | 2021-05-18 | Raytheon Technologies Corporation | Undercut combustor panel rail |
US11022307B2 (en) | 2018-02-22 | 2021-06-01 | Raytheon Technology Corporation | Gas turbine combustor heat shield panel having multi-direction hole for rail effusion cooling |
US10995955B2 (en) * | 2018-08-01 | 2021-05-04 | Raytheon Technologies Corporation | Combustor panel |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4321311A (en) * | 1980-01-07 | 1982-03-23 | United Technologies Corporation | Columnar grain ceramic thermal barrier coatings |
DE8618859U1 (de) * | 1986-07-14 | 1988-01-28 | Siemens Ag, 1000 Berlin Und 8000 Muenchen, De | |
JPH03504999A (ja) * | 1988-06-13 | 1991-10-31 | シーメンス、アクチエンゲゼルシヤフト | 高温流体を導く構造物のための熱遮蔽装置 |
US5431020A (en) * | 1990-11-29 | 1995-07-11 | Siemens Aktiengesellschaft | Ceramic heat shield on a load-bearing structure |
GB9112324D0 (en) * | 1991-06-07 | 1991-07-24 | Rolls Royce Plc | Gas turbine engine combustor |
GB2298267B (en) | 1995-02-23 | 1999-01-13 | Rolls Royce Plc | An arrangement of heat resistant tiles for a gas turbine engine combustor |
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 |
DE29714742U1 (de) * | 1997-08-18 | 1998-12-17 | Siemens Ag | Hitzeschildkomponente mit Kühlfluidrückführung und Hitzeschildanordnung für eine heißgasführende Komponente |
EP1022437A1 (de) * | 1999-01-19 | 2000-07-26 | Siemens Aktiengesellschaft | Bauteil zur Verwendung in einer thermischen Machine |
US6331096B1 (en) | 2000-04-05 | 2001-12-18 | General Electric Company | Apparatus and methods for impingement cooling of an undercut region adjacent a side wall of a turbine nozzle segment |
EP1199520A1 (de) * | 2000-10-16 | 2002-04-24 | Siemens Aktiengesellschaft | Hitzeschildstein zur Auskleidung einer Brennkammerwand, Brennkammer sowie Gasturbine |
EP1284390A1 (de) * | 2001-06-27 | 2003-02-19 | Siemens Aktiengesellschaft | Hitzeschildanordnung für eine Heissgas führende Komponente, insbesondere für Strukturteile von Gasturbinen |
EP1288601B1 (de) * | 2001-08-28 | 2006-10-25 | Siemens Aktiengesellschaft | Hitzeschildstein sowie Verwendung eines Hitzeschildsteins in einer Brennkammer |
EP1429077B1 (de) * | 2002-12-10 | 2008-07-30 | Siemens Aktiengesellschaft | Gasturbine |
EP1443275B1 (de) * | 2003-01-29 | 2008-08-13 | Siemens Aktiengesellschaft | Brennkammer |
US6931855B2 (en) | 2003-05-12 | 2005-08-23 | Siemens Westinghouse Power Corporation | Attachment system for coupling combustor liners to a carrier of a turbine combustor |
EP1507116A1 (de) * | 2003-08-13 | 2005-02-16 | Siemens Aktiengesellschaft | Hitzeschildanordnung für eine ein Heissgas führende Komponente, insbesondere für eine Brennkammer einer Gasturbine |
EP1650503A1 (de) * | 2004-10-25 | 2006-04-26 | Siemens Aktiengesellschaft | Verfahren zur Kühlung eines Hitzeschildelements und Hitzeschildelement |
EP1715248A1 (de) * | 2005-04-19 | 2006-10-25 | Siemens Aktiengesellschaft | Halteelement und Hitzeschildelement für einen Hitzeschild sowie mit einem Hitzeschild versehene Brennkammer |
-
2007
- 2007-07-06 WO PCT/EP2007/056887 patent/WO2008017551A2/de active Application Filing
- 2007-07-06 EP EP07787170.5A patent/EP2049841B1/de active Active
-
2009
- 2009-02-09 US US12/367,908 patent/US8006498B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2008017551A2 * |
Also Published As
Publication number | Publication date |
---|---|
US8006498B2 (en) | 2011-08-30 |
WO2008017551A2 (de) | 2008-02-14 |
WO2008017551A3 (de) | 2008-04-17 |
EP2049841B1 (de) | 2016-12-28 |
US20090199837A1 (en) | 2009-08-13 |
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