EP1826491B1 - Ringförmige brennkammer mit abnehmbarem brennkammerdom - Google Patents

Ringförmige brennkammer mit abnehmbarem brennkammerdom Download PDF

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Publication number
EP1826491B1
EP1826491B1 EP07103025.8A EP07103025A EP1826491B1 EP 1826491 B1 EP1826491 B1 EP 1826491B1 EP 07103025 A EP07103025 A EP 07103025A EP 1826491 B1 EP1826491 B1 EP 1826491B1
Authority
EP
European Patent Office
Prior art keywords
wall
removable
combustion chamber
removable wall
welded
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
EP07103025.8A
Other languages
English (en)
French (fr)
Other versions
EP1826491A1 (de
Inventor
Didier Hernandez
David Locatelli
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.)
Safran Aircraft Engines SAS
Original Assignee
SNECMA SAS
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 SNECMA SAS filed Critical SNECMA SAS
Publication of EP1826491A1 publication Critical patent/EP1826491A1/de
Application granted granted Critical
Publication of EP1826491B1 publication Critical patent/EP1826491B1/de
Active legal-status Critical Current
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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
    • F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
    • F23R3/04—Air inlet arrangements
    • F23R3/10—Air inlet arrangements for primary air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/02—Structural details of mounting
    • 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
    • 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
    • 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
    • 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
    • F23R2900/00017—Assembling combustion chamber liners or subparts
    • 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
    • F23R2900/00018—Manufacturing combustion chamber liners or subparts
    • 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
    • F23R2900/00019—Repairing or maintaining combustion chamber liners or subparts

Definitions

  • the invention relates to the field of turbomachines. It relates more specifically to an annular combustion chamber and in particular such a so-called monobloc chamber in which the constituent parts are welded, preferably edge to edge.
  • the invention relates more particularly to an improvement improving access to the internal areas of the home, which can be repaired.
  • the removable walls are preferably themselves welded to the chamber bottom so that the windows are perfectly closed.
  • the weld is made in such a way that it can be easily removed by grinding which allows easy disassembly of such a removable wall carrying a number of injection systems. For example, three injection systems are grouped on the same removable wall.
  • dismantling one or more removable walls provides access to the areas to be repaired, upstream, while enjoying the advantages of monoblock chamber technology.
  • combustion chamber 11 which is distinguished in particular an outer wall 12, annular, an inner wall 13, annular and a chamber bottom 14 connecting said inner and outer walls.
  • said inner and outer walls are welded to the inner and outer edges of the chamber bottom, respectively.
  • the chamber base comprises windows 18 distributed circumferentially and these windows are closed by removable walls 20.
  • Each removable wall in the form of an annular sector constitutes a support for several injection systems 22.
  • each removable wall carries three injection systems.
  • Each removable wall 20 is itself welded to the chamber bottom but this weld can easily be removed by grinding.
  • each removable wall has a peripheral shoulder defining an internal bearing edge 24 coming into contact with the inner face of the chamber bottom.
  • the removable wall can easily be engaged in the window 18 and then rotated to come into the interior of the chamber bottom.
  • the removable wall has, on at least two of its edges grooves 28 parallel to the support edge.
  • such grooves are made along the curved edges of the removable wall. The distance separating the edge of such a groove from said adjacent abutment edge is equal to the thickness of the chamber bottom 14.
  • Snap rings 30 are engaged in these grooves 28 to define external bearing surfaces coming into contact with the outer face of the chamber bottom.
  • such a snap ring 30 has an L-shaped profile.
  • a branch of this snap ring is thus engaged in the groove 28 and the end of the other branch is welded to the periphery of the removable wall.
  • the periphery of this removable wall has ribs 32 and the main branch of the L-shaped ring 30 is parallel to this rib, externally to it.
  • the end of said other branch of each rod is welded to the top of such a rib by a weld bead 34.
  • a removable wall according to the foregoing description can easily be dismantled, during a maintenance operation, by proceeding as illustrated on the Figures 4 to 6 .
  • the removable wall is then rotated in the fireplace ( figure 5 ) and finally extracted by one of its ends by releasing it from the window.
  • the latter is sufficiently wide, radially, to allow the passage of the removable wall provided with its injection systems 22, without the need to dismount them.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (6)

  1. Ringförmige Brennkammer, umfassend eine Außenwand (12), eine Innenwand (13) und einen Brennkammerdom (14), der die Innen- und die Außenwand verbindet, wobei der Brennkammerdom Fenster (18) umfasst, die in Umfangsrichtung verteilt sind und durch entfernbare Wände (20) geschlossen sind, wobei jede entfernbare Wand einen Träger für mehrere Einspritzsysteme (22) darstellt, dadurch gekennzeichnet, dass jede entfernbare Wand einen Umfangsabsatz umfasst, der einen inneren Stützrand (24) definiert, der mit der Innenseite des Brennkammerdoms in Kontakt kommt, dass die entfernbare Wand (20) an ihren Kanten Nuten (28) parallel zum Stützrand umfasst, und dass Anschlagstifte (30) in diesen Nuten in Eingriff sind, um äußere Stützflächen zu definieren, die mit der Außenseite des Brennkammerdoms in Kontakt kommen.
  2. Brennkammer nach Anspruch 1, dadurch gekennzeichnet, dass die Außenwand und die Innenwand und der Brennkammerdom verschweißt sind.
  3. Brennkammer nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass jede entfernbare Wand (20) drei Einspritzsysteme (22) trägt.
  4. Brennkammer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass ein solcher Anschlagstift (30) ein L-Profil hat, wobei ein Schenkel des Stiftes in einer vorgenannten Nut (28) in Eingriff ist und das Ende des anderen Schenkels auf die Peripherie der entfernbaren Wand geschweißt ist.
  5. Brennkammer nach Anspruch 4, dadurch gekennzeichnet, dass die Peripherie der entfernbaren Wand Rippen (32) aufweist, und dass das Ende des anderen Schenkels jedes Stiftes auf den Scheitel einer solchen Rippe geschweißt ist.
  6. Turbomaschine, umfassend eine Brennkammer nach einem der vorhergehenden Ansprüche.
EP07103025.8A 2006-02-27 2007-02-26 Ringförmige brennkammer mit abnehmbarem brennkammerdom Active EP1826491B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0650664A FR2897923B1 (fr) 2006-02-27 2006-02-27 Chambre de combustion annulaire a fond amovible

Publications (2)

Publication Number Publication Date
EP1826491A1 EP1826491A1 (de) 2007-08-29
EP1826491B1 true EP1826491B1 (de) 2015-10-07

Family

ID=37199085

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07103025.8A Active EP1826491B1 (de) 2006-02-27 2007-02-26 Ringförmige brennkammer mit abnehmbarem brennkammerdom

Country Status (6)

Country Link
US (1) US7854126B2 (de)
EP (1) EP1826491B1 (de)
JP (1) JP4943180B2 (de)
CA (1) CA2578701C (de)
FR (1) FR2897923B1 (de)
RU (1) RU2435109C2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUE027667T2 (en) * 2011-02-09 2016-10-28 Siemens Ag Burner compartment cover
US10378775B2 (en) * 2012-03-23 2019-08-13 Pratt & Whitney Canada Corp. Combustor heat shield
FR2996285B1 (fr) * 2012-10-01 2014-09-12 Turbomeca Ensemble de combustion de turbomachine a variation d'alimentation d'air.
CN112303665B (zh) * 2020-11-02 2022-06-14 西北工业大学 混合燃烧可视化燃烧器
US11566565B2 (en) * 2020-12-23 2023-01-31 Collins Engine Nozzles, Inc. Access hatch for internally mounted torch ignitor

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2011546A (en) * 1977-12-24 1979-07-11 Rolls Royce Gas turbine combustion chamber
US4454711A (en) * 1981-10-29 1984-06-19 Avco Corporation Self-aligning fuel nozzle assembly
US5117637A (en) * 1990-08-02 1992-06-02 General Electric Company Combustor dome assembly
FR2679010B1 (fr) * 1991-07-10 1993-09-24 Snecma Chambre de combustion de turbomachine a bols de prevaporisation demontables.
GB2295887A (en) * 1994-12-08 1996-06-12 Rolls Royce Plc Combustor assembly
GB2297829B (en) * 1995-02-07 1998-08-12 Rolls Royce Plc Annular combustion chamber
US6212870B1 (en) * 1998-09-22 2001-04-10 General Electric Company Self fixturing combustor dome assembly
US6314739B1 (en) * 2000-01-13 2001-11-13 General Electric Company Brazeless combustor dome assembly
FR2825779B1 (fr) * 2001-06-06 2003-08-29 Snecma Moteurs Chambre de combustion munie d'un systeme de fixation de fond de chambre
EP1312865A1 (de) * 2001-11-15 2003-05-21 Siemens Aktiengesellschaft Ringbrennkammer für eine Gasturbine
US7021562B2 (en) * 2002-11-15 2006-04-04 Parker-Hannifin Corp. Macrolaminate direct injection nozzle
FR2859272B1 (fr) * 2003-09-02 2005-10-14 Snecma Moteurs Systeme d'injection air/carburant, dans une chambre de combustion de turbomachine, ayant des moyens de generation de plasmas froids
US20060042257A1 (en) * 2004-08-27 2006-03-02 Pratt & Whitney Canada Corp. Combustor heat shield and method of cooling
US7673460B2 (en) * 2005-06-07 2010-03-09 Snecma System of attaching an injection system to a turbojet combustion chamber base

Also Published As

Publication number Publication date
CA2578701A1 (fr) 2007-08-27
FR2897923A1 (fr) 2007-08-31
US7854126B2 (en) 2010-12-21
JP4943180B2 (ja) 2012-05-30
CA2578701C (fr) 2015-09-08
JP2007232358A (ja) 2007-09-13
FR2897923B1 (fr) 2008-06-06
EP1826491A1 (de) 2007-08-29
US20070200012A1 (en) 2007-08-30
RU2435109C2 (ru) 2011-11-27
RU2007107027A (ru) 2008-09-10

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