EP2021695A1 - Paroi de chambre de combustion - Google Patents

Paroi de chambre de combustion

Info

Publication number
EP2021695A1
EP2021695A1 EP07726475A EP07726475A EP2021695A1 EP 2021695 A1 EP2021695 A1 EP 2021695A1 EP 07726475 A EP07726475 A EP 07726475A EP 07726475 A EP07726475 A EP 07726475A EP 2021695 A1 EP2021695 A1 EP 2021695A1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
spring
wall according
chamber wall
plate
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.)
Withdrawn
Application number
EP07726475A
Other languages
German (de)
English (en)
Inventor
Milan Schmahl
Marc Tertilt
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to EP07726475A priority Critical patent/EP2021695A1/fr
Publication of EP2021695A1 publication Critical patent/EP2021695A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/14—Supports for linings
    • F27D1/141—Anchors therefor
    • 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
    • F23M5/04—Supports for linings
    • 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
    • F23R3/007—Continuous combustion chambers using liquid or gaseous fuel constructed mainly of ceramic components
    • 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
    • F23R2900/00005—Preventing fatigue failures or reducing mechanical stress in gas turbine components

Definitions

  • the invention relates to a combustion chamber wall in a combustion ⁇ chamber comprising a support structure with a number of heat shields, which are fastened with a fastening means on the support ⁇ structure, wherein the fastening means comprises a spring device.
  • the combustion chamber of a gas turbine is exposed to special loads, for example hot gases or vibrations.
  • loads for example hot gases or vibrations.
  • heat shields are mounted on the support structure, which protects the support structure from the hot gases and other loads.
  • Heat shields in a combustion chamber are attached to the support structure with a screw.
  • dish-wrap packages are used for mounting.
  • Metallic heat shield plates are fastened centrally with the plate springs.
  • the Tellerfe ⁇ dervol consists of a sleeve and in the sleeve angeord ⁇ Neten disc springs. These have on the inside a continuous axial hole.
  • the cup spring packs are partially threaded on the axial hole.
  • the screw is screwed into the ⁇ ses axial hole.
  • a recess with a matching internal thread is provided in the support structure.
  • the screw head is now arranged in or on the heat shield.
  • a ⁇ by the screw ring fitting in the recess of the heat shield is attached to the support structure.
  • the screw can be such that it can be inserted through the support structure.
  • screwed plate spring packet protrudes and extends even further into the recess of the support structure.
  • the sleeve In the direction of the combustion chamber, the sleeve has a fixed lid, which also has an axial hole for
  • the lid is sozusa ⁇ gen a part of the sleeve.
  • the disc springs of the plate spring pack are secured against falling out on the side in the direction of the supporting structure with a securing ring.
  • a pressure plate is still ⁇ .
  • the safety ring has often been solved in the past and or is broken. If, for example, a heat shield has to be dismantled / mounted due to cracks or breaks, the springs and the pressure plate itself can fall into the combustion chamber if the safety ring is broken. These then have to be effortfully searched for and removed again. It is also difficult to install a new disc spring package, as the back of the support structure is not accessible from the outside in some places, for example on the hub.
  • the object of the invention is to specify a combustion chamber wall with a support structure and with heat shields which are fastened to the support structure, wherein the attachment of these
  • Heat shields on the support structure is particularly easy to service and easy to assemble / disassemble.
  • a combustion chamber wall according to the invention with a combustion chamber comprising a support structure with a number of heat shields which are fastened to the support structure with a fastening means, and wherein the fastening means comprises a spring device, and wherein the spring device is firmly connected to the support structure .
  • the spring device consists of at least one spring mounted in a shell, wherein the spring is prevented from falling out on the side facing away from the combustion chamber by a first captive, and wherein the Federvor- direction inside an axial hole for receiving the Be ⁇ fastening means , And wherein the spring is secured by a second captive on the side facing the combustion chamber against falling out, and wherein the spring ⁇ device on the side facing the combustion chamber can be extended bar.
  • the spring device according to the invention therefore consists of a spring, for example disc spring which is mounted in a shell.
  • the spring device has an axial hole on the inside. This is usually arranged in the middle due to an even load distribution and is intended for receiving the buildin ⁇ actuating means, such as a screw.
  • the heat shield With the fastening means, such as the screw, the heat shield is attached to the support structure, for example, in which the Schaub head is mounted in or on the heat shield.
  • the spring device is firmly connected to the support structure.
  • a attached first captive which secures the spring in the case against falling out in the direction of the support structure. This can for example be a kind of cover.
  • a second captive secures the spring against falling out in the direction of the combustion chamber.
  • the at least one spring is a plate spring. This is advantageous because disc springs can absorb very large forces in comparison with other springs in a small installation space. Furthermore, these can achieve an arbitrarily variable column length by assembling a plurality of disc springs. If dimensioned correctly, disc springs also achieve a long service life under dynamic loading.
  • the first captive is a pressure ⁇ plate and / or attached to the inside of the shell edge.
  • the springs in particular the disc springs can rest. Thus, they can not fall into the combustion chamber.
  • the risk of a break, for example, during disassembly / assembly of a heat shield significantly reduced.
  • the pressure plate is therefore advantageously mounted between the edge and spring in the shell. This also increases the Position of the springs. This allows the springs to absorb the load largely constant. This can increase the life of the springs.
  • the pressure plate has an internal thread for fastening the fastening means.
  • This can advantageously be madestal ⁇ tet as a supporting internal thread, in which the fastening means is attached.
  • the shell has an external thread. Because of ⁇ simple attachment of the shell with the support ⁇ structure is achieved.
  • the shell has recesses on the side facing the combustion chamber.
  • the projection of the printing plate is advantageous ⁇ arranged by way legally. This achieves a better connection of the two elements and si ⁇ chert the printing plate before further misalignment.
  • the shell is a sleeve. This is before Trains t ⁇ alia from metal or metallic base material or ⁇ heat-resistant material. Furthermore, the sleeve is preferably such that it allows low strains due to heat. This is the case, for example, with metal / metallic base material.
  • a locking plate is attached to the side facing the combustion chamber on the spring.
  • the safety plate can be arranged both in the shell on the spring or outside on the spring.
  • the safety sheet can be designed such that a part of the safety sheet is arranged in and part of the safety sheet outside the casing.
  • the locking plate with the shell is firmly connected by the locking plate on the outside has at least one attachment. This attachment is arranged for example in the recesses of the shell.
  • the safety plate is firmly connected to the shell.
  • the safety plate is arranged dejustierêt. In addition, this protects the spring from misalignment. This in turn increases the life of the spring.
  • the locking plate on the inside has at least one structure. This serves to beaue ⁇ ren attachment of the locking plate.
  • At least one tooth is applied to the securing plate on the outer edge on the side facing the combustion chamber. If several teeth are present, they are equal ⁇ fitted as standard across the entire outer edge.
  • at least one bead is embossed on the securing plate on the outer edge on the side facing the combustion chamber. By the at least one tooth or teeth and the at least one embossed bead rattle the Federvor ⁇ direction or the spring is prevented to prevent wear by relative movements. This increases the life of the spring device.
  • a disc is attached to the side facing the combustion chamber on the locking plate.
  • the disc has at least one innensei ⁇ term recess.
  • the structure of the safety plate is arranged. This achieves a better cohesion of these two elements.
  • the disc is additionally secured against misalignment.
  • the disc has an external thread.
  • the external thread can be configured as a supporting external thread.
  • the screw-in disc also offers the advantage of saving the reworking on the so-called plate pin to adapt the plate to the support structure by the spring device can be adjusted individually in height.
  • the fastening means is a screw.
  • the spring device for fixing a heat shield in the support structure is arranged.
  • a corresponding recess with a corres ⁇ pondierenden internal thread is to be mounted in the support structure.
  • the pressure plate has at least one projection. With this a better attachment of the pressure plate in the envelope is possible.
  • FIG. 1 shows a cup spring package 5 according to the prior Tech ⁇ nik. This has on the inside in the middle of an axial hole 11 which can receive a screw 10. On screws ⁇ head of the mounted heat shield (not shown) arranges be ⁇ .
  • the cup spring package 5 has a sleeve 2 with an external thread 14. This sleeve is screwed into the support structure 18 with the corresponding internal thread.
  • a pressure plate 6 and one or more disc springs 4 are attached in the sleeve 2.
  • the pressure plate 6 has an internal thread 16 into which the thread 12 of the screw 10 can be screwed. So that they do not fall into the support structure 18, a releasable safety ring 8 is attached to the side facing away from the combustion chamber 15 side.
  • the disc springs 4 at
  • a closure lid 9 is also firmly attached to the sleeve 2 with the axial hole 11.
  • the closure lid 9 is a part of the sleeve 2 itself.
  • the cup spring package 5 can not open to the combustion chamber 15 out.
  • the plate spring package 5 In a breakage of the safety ring 8 in, for example, the disassembly / assembly of a heat shield to be replaced therefore the plate spring package 5 must be dismantled from the support structure side 18, which, however, requires a lot of time. Otherwise you can Safety ring 8, plate spring 4 or parts of the sleeve 2 fall into the combustion chamber. Since these cause great damage in the combustion chamber 15, they must be consuming sought and removed.
  • FIGS. 3 and 4 show a spring device according to the invention.
  • the here essentially round spring device designed here with plate spring 24 as a spring, to the interior of the combustion chamber 15 can be removed.
  • the spring device has an axial hole 34 on the inside, preferably centrally.
  • the spring device consists of a casing formed as a sleeve 20. This has an outer thread 32 which respond Schlierende in the kor ⁇ internal thread of the support structure is screwed 18th Furthermore, the sleeve 20 on the side facing the combustion chamber 15 has recesses 40 and on the side facing away from the combustion chamber 15 an edge 33. In this sleeve now a round pressure plate 22 is inserted, in such a way that they on the edge 33 of the sleeve 20th rests. The pressure plate 22 has on the outside two but at least one projection 42.
  • the safety plate 26 can still be arranged in the sleeve 20 or even outside the sleeve 20.
  • This has an attachment 44 on the outer edge.
  • The- this attachment 44 is inserted into the recess 40 of the sleeve 20.
  • this article 44 provides better cohesion of the two components safety plate 26 and disc springs 24.
  • the safety plate 26 on the inside nor a structure 46 on.
  • a disc 28 is arranged on the safety plate 26, . This has, on the inner side ⁇ recesses 48, into which the assembly 46 is inserted 26 of the Si ⁇ cherheitsblechs.
  • the disc 28 has a supporting outer ⁇ thread 30 on.
  • the external thread is, as already the sleeve 20 screwed into the corresponding internal thread of the support structure 18.
  • the disc may be provided with a slot 50.
  • the unscrewable disc 28 has the advantage of saving the reworking on the so-called plate pin for adaptation of the heat shield to the support structure 18 by the spring device can be adjusted individually in height.
  • the expandability is achieved by the shell, which is designed here as a sleeve 20, is now expandable combustion chamber side.
  • FIG. 4 shows different embodiments of the security sheet 26 to secure the Write 28 here Kunststoffliche under ⁇ variants are conceivable.
  • this may be a locking plate 26 with teeth 72 or else a securing plate 26 with an embossed bead 70.
  • the teeth 72 in the securing plate 26 or embossed bead 70 produce a flap.
  • the disc springs 24 and the spring device prevented in the thread. Characterized wear is prevented in the thread by Real ⁇ velocity moves.
  • the required Serviceoughkeit is essentially achieved according to the invention by the interchangeability of the combustion chamber ⁇ page. It is thus compensated for the disadvantage that the disc spring package shown in the prior art on the side facing the combustion chamber is not removable or mountable. Thus, it is avoided that in case of breakage of a heat shield and its de / mounting disc springs and / or the pressure plate fall into the combustion chamber. The spring device can now be exchanged directly with the replacement of the heat shield.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Ceramic Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

L'invention concerne une paroi de chambre de combustion, laquelle chambre de combustion (15) comprend une structure porteuse (18) dotée d'un certain nombre d'écrans thermiques fixés à la structure porteuse (18) par un moyen de fixation. Le moyen de fixation comprend un dispositif à ressort relié de manière fixe à la structure porteuse, ce dispositif à ressort comprenant au moins un ressort monté dans une gaine et maintenu de manière à ne pas sortir par une première sécurité placée sur la face opposée à la chambre de combustion (15). Le dispositif à ressort a, sur sa face interne, un orifice axial (34) pour recevoir le moyen de fixation. Le ressort est maintenu de manière à ne pas sortir par une deuxième sécurité placée sur la face orientée vers la chambre de combustion (15). Le dispositif à ressort peut être déposé du côté orienté vers la chambre de combustion (15).
EP07726475A 2006-05-31 2007-02-22 Paroi de chambre de combustion Withdrawn EP2021695A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07726475A EP2021695A1 (fr) 2006-05-31 2007-02-22 Paroi de chambre de combustion

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP06011276.0A EP1862740B1 (fr) 2006-05-31 2006-05-31 Paroi de chambre de combustion
PCT/EP2007/051717 WO2007137883A1 (fr) 2006-05-31 2007-02-22 Paroi de chambre de combustion
EP07726475A EP2021695A1 (fr) 2006-05-31 2007-02-22 Paroi de chambre de combustion

Publications (1)

Publication Number Publication Date
EP2021695A1 true EP2021695A1 (fr) 2009-02-11

Family

ID=37311944

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06011276.0A Not-in-force EP1862740B1 (fr) 2006-05-31 2006-05-31 Paroi de chambre de combustion
EP07726475A Withdrawn EP2021695A1 (fr) 2006-05-31 2007-02-22 Paroi de chambre de combustion

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP06011276.0A Not-in-force EP1862740B1 (fr) 2006-05-31 2006-05-31 Paroi de chambre de combustion

Country Status (5)

Country Link
US (1) US8069670B2 (fr)
EP (2) EP1862740B1 (fr)
CN (1) CN101460783B (fr)
RU (1) RU2437034C2 (fr)
WO (1) WO2007137883A1 (fr)

Families Citing this family (11)

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Publication number Priority date Publication date Assignee Title
US9322334B2 (en) * 2012-10-23 2016-04-26 General Electric Company Deformable mounting assembly
DE102012022199A1 (de) 2012-11-13 2014-05-28 Rolls-Royce Deutschland Ltd & Co Kg Brennkammerschindel einer Gasturbine
ITUB20155786A1 (it) * 2015-11-23 2017-05-23 Leonardo Mattoni Dispositivo di fissaggio tra due parti con tiraggio a molla
CN105605605A (zh) * 2016-01-25 2016-05-25 西北工业大学 一种地面燃机燃烧室的防振冷却壁
DE102016211613A1 (de) * 2016-06-28 2017-12-28 Siemens Aktiengesellschaft Hitzeschildanordnung einer Brennkammer mit Tellerfederpaket
US10935235B2 (en) 2016-11-10 2021-03-02 Raytheon Technologies Corporation Non-planar combustor liner panel for a gas turbine engine 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
EP3410014B1 (fr) * 2017-05-31 2021-01-20 Ansaldo Energia S.p.A. Support de tuile pour chambre de combustion d'une turbine à gaz
US10436236B2 (en) * 2017-10-10 2019-10-08 Velcro BVBA Threaded fastening
DE102018213925A1 (de) * 2018-08-17 2020-02-20 Rolls-Royce Deutschland Ltd & Co Kg Brennkammerbaugruppe mit Schindelbauteil und Positonierungshilfe

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US4944151A (en) * 1988-09-26 1990-07-31 Avco Corporation Segmented combustor panel
US5592814A (en) * 1994-12-21 1997-01-14 United Technologies Corporation Attaching brittle composite structures in gas turbine engines for resiliently accommodating thermal expansion
DE19502730A1 (de) * 1995-01-28 1996-08-01 Abb Management Ag Keramische Auskleidung
DE59706558D1 (de) * 1997-07-28 2002-04-11 Alstom Keramische Auskleidung
DE59706557D1 (de) * 1997-07-28 2002-04-11 Alstom Keramische Auskleidung
DE19751299C2 (de) * 1997-11-19 1999-09-09 Siemens Ag Brennkammer sowie Verfahren zur Dampfkühlung einer Brennkammer
EP1006315B1 (fr) * 1998-11-30 2004-01-21 ALSTOM (Switzerland) Ltd Garnissage céramique d'une chambre de combustion
DE10003728A1 (de) * 2000-01-28 2001-08-09 Siemens Ag Hitzeschildanordnung für eine Heißgas führende Komponente, insbesondere für Strukturteile von Gasturbinen
WO2003023281A1 (fr) * 2001-09-07 2003-03-20 Alstom Technology Ltd Ensemble amortisseur concu pour reduire les pulsations d'une chambre de combustion dans une installation de turbine a gaz
GB2380236B (en) * 2001-09-29 2005-01-19 Rolls Royce Plc A wall structure for a combustion chamber of a gas turbine engine
EP1389714A1 (fr) * 2002-08-16 2004-02-18 Siemens Aktiengesellschaft Chambre à combustion de turbine à gaz
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EP1533574A1 (fr) * 2003-11-24 2005-05-25 Siemens Aktiengesellschaft Chambre de combustion pour turbine à gaz avec des éléments de revêtement et procédé pour appliquer ou enlever ces éléments

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Also Published As

Publication number Publication date
RU2008152071A (ru) 2010-07-10
EP1862740A1 (fr) 2007-12-05
RU2437034C2 (ru) 2011-12-20
US20090205314A1 (en) 2009-08-20
CN101460783B (zh) 2012-01-04
CN101460783A (zh) 2009-06-17
US8069670B2 (en) 2011-12-06
WO2007137883A1 (fr) 2007-12-06
EP1862740B1 (fr) 2015-09-16

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