WO2005019731A1 - Chambre de combustion, notamment chambre de combustion pour turbine a gaz - Google Patents

Chambre de combustion, notamment chambre de combustion pour turbine a gaz Download PDF

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Publication number
WO2005019731A1
WO2005019731A1 PCT/EP2004/008117 EP2004008117W WO2005019731A1 WO 2005019731 A1 WO2005019731 A1 WO 2005019731A1 EP 2004008117 W EP2004008117 W EP 2004008117W WO 2005019731 A1 WO2005019731 A1 WO 2005019731A1
Authority
WO
WIPO (PCT)
Prior art keywords
combustion chamber
heat shield
fastening bolt
bolt
stones
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.)
Ceased
Application number
PCT/EP2004/008117
Other languages
German (de)
English (en)
Inventor
Bernd STÖCKER
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Priority to EP04741178A priority Critical patent/EP1656522A1/fr
Publication of WO2005019731A1 publication Critical patent/WO2005019731A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F23M5/02—Casings; Linings; Walls characterised by the shape of the bricks or blocks used
    • 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
    • F23R3/002—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
    • F23R3/007—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
    • 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
    • F23M2900/00—Special features of, or arrangements for combustion chambers
    • F23M2900/05004—Special materials for walls or lining

Definitions

  • Combustion chamber in particular gas turbine combustion chamber
  • the invention relates to a combustion chamber for a gas turbine, the combustion chamber wall of which has a number of heat shield bricks on the inside, which are arranged essentially side by side and are fastened to a support structure, each heat shield brick having a cold side facing the support structure and one opposite the cold side Has hot side that can be acted on by the medium.
  • Such a combustion chamber with a combustion chamber lining can be seen, for example, from DE-A 362 50 56.
  • Such support shield-reinforced supporting structures are used in a variety of ways, for example as flame tubes or hot gas ducts in incineration plants such as. B. Gas turbine plants.
  • Corresponding support structures reinforced with heat shields can be found in DE 117 37 34, DE 252 34 49 C3 and DE 362 50 56 AI.
  • the heat-resistant combustion chamber lining (heat shield) consists of profiled stones which have flanks provided with grooves, each stone being clamped between at least two holders which engage in the grooves.
  • the holders have tabs which rest on the supporting structure under the fixed stone and are firmly connected to it.
  • the stones are provided with bevelled flanks and lie directly on the supporting structure to be protected from thermal stress. They are fastened with metallic clamps, each with a trapezoidal cross-section, which are inserted into V-shaped gaps between two stones and braced against the supporting structure by means of screws or the like.
  • a disadvantage of the heat shield according to DE 117 37 34 may be emphasized that a hot fluid to be kept away from the support structure can flow underneath the heat shield because the stones must necessarily be arranged at a distance from the support structure, and also the changes caused by thermal stress the spring force holder cannot be sufficiently taken into account. Underflowing the heat shield with hot fluid can possibly damage the support structure. Incomplete consideration of the changes in the spring force holder under thermal stress can lead to loosening of the stones under high thermal stress or excessive mechanical stress on the stones under low thermal stress.
  • the heat shield according to DE 362 50 56 AI does not pose any risk of undercurrent, since the stones forming the heat shield rest directly on the supporting structure; however, the metallic fastening elements of the heat shield are directly exposed to the hot fluid and limit the thermal load capacity of the heat shield or require special cooling measures.
  • EP 0 558 540 B1 Another type of lining of a thermally highly loaded combustion chamber is specified in EP 0 558 540 B1.
  • This discloses a heat shield on a support structure, which heat shield has a multiplicity of stones, which are arranged next to one another essentially over the entire surface and are fastened to the support structure with metallic holders, each stone having a cold side lying on the support structure, a hot side facing away from the support structure and has at least two flanks, each of which connects the cold side to the hot side and each of which is assigned at least one holder which at least partially overlaps the flanks with a gripping tab.
  • the support structure is provided with grooves, each of which has a groove bottom and a groove opening opposite each other, and that each holder is fastened in a groove on a fastening tab which is aligned approximately at right angles to the gripping tab.
  • the invention is based on the observation that the ceramic heat shield bricks described above are often insufficiently secured against mechanical loads, such as shocks and vibrations, due to their necessary flexibility with regard to thermal expansions. Furthermore, when the heat shield bricks are used in a combustion chamber for lining a combustion chamber wall during assembly or maintenance work, a considerable amount of time is recorded due to the fastening, which is difficult to access.
  • the invention is accordingly based on the object of specifying a combustion chamber for a gas turbine which has improved heat shield bricks which, in particular compared to the above-mentioned requirements, ensure greater operational reliability with less maintenance.
  • Another object of the invention is to provide a gas turbine with such a combustion chamber.
  • a combustion chamber for a gas turbine the combustion chamber wall of which has a number of heat shield bricks on the inside, which are arranged essentially side by side and are attached to a support structure, each heat shield brick having a cold side facing the support structure and one has the hot side opposite the cold side, which can be acted upon by a hot medium, a heat shield brick and a heat shield brick adjacent thereto being fastened to the supporting structure by at least one common fastening bolt.
  • the invention shows a completely new way of permanently securing a combustion chamber with heat shield stones against high accelerations as a result of shocks or vibrations, and at the same time the need to replace individual To enable ner heat shield stones during maintenance work.
  • the invention is already based on the knowledge that heat shield bricks, as are usually used for lining a combustion chamber wall, are excited to corresponding vibrations by stationary and / or transient vibrations in the combustion chamber wall. In this case, particularly in a resonance case, high accelerations can occur above a limit acceleration, the heat shield bricks lifting off the combustion chamber wall and subsequently striking again. Such an impact on the massive combustion chamber wall leads to very high forces on the heat shield stones and can lead to great damage to them.
  • Fragments from a heat shield brick which consists in particular of a ceramic material, are significantly reduced.
  • the ability to assemble and disassemble individual heat shield stones on the supporting structure is advantageously made considerably easier, which is of great importance for the service business.
  • a heat shield brick and an adjacent heat shield brick are fastened to the supporting structure by at least one common fastening bolt.
  • a single fastening bolt fastens and therefore secures at least two heat shield stones, namely a heat shield stone and an adjacent heat shield stone.
  • a bolt fastening for heat shield stones is proposed, which is clearly superior to the clamping of a heat shield stone with a number of clamps, which is known, for example, from EP 0 558 540 B1, especially with regard to the assembly effort.
  • the passive safety of the combustion chamber is increased with the fastening concept of the invention, since a heat shield brick is not lost in the event of a continuous crack in the heat shield brick.
  • a combustion chamber lined with heat shield stones in this way has emergency running properties in the event of special occurrences, so that consequential damage, for example for the blading of a turbine downstream of the combustion chamber, can be avoided.
  • combustion chamber with such a lining of heat shield bricks can be operated at least with the usual maintenance cycles, but it is also possible to extend the service life due to the increased passive safety.
  • individual combustion chamber bricks are advantageously exchangeable in a particularly simple manner by loosening the corresponding fastening bolts, which, in the conventional stapling of heat shield bricks, can only be carried out with considerable effort and disassembly of entire rows of heat shield bricks - in particular also those which are not at all to be exchanged.
  • the heat shield stones are each designed as a polygon, with a common fastening bolt being positioned at one corner.
  • a common fastening bolt being positioned at one corner.
  • the heat shield stones are configured as triangles or quadrilaterals, which are fastened to the supporting structure by a common fastening bolt positioned at one corner.
  • a fastening bolt which is arranged at one corner can simultaneously secure four heat shield elements which are arranged adjacent to one another in the corner.
  • the corner fastening of the heat shield bricks with a respective fastening bolt is particularly advantageous with regard to simple assembly and disassembly, at the same time making it difficult to fall out of any fragments, in particular in comparison to the known clamp fastenings already discussed above.
  • Heat shield stones in the form of triangles are also particularly favorable for covering the entire combustion chamber with a fastening bolt positioned in the corners of the heat shield stones.
  • the equilateral triangles create a six-fold rotational symmetry with respect to a corner point, i.e. six adjacent heat shield stones are fastened with a fastening bolt and permanently secured during operation.
  • the fastening bolt is preferably accessible and releasable from the hot side.
  • a heat shield brick can be exchanged from the interior of the combustion chamber space by loosening the fastening bolt or a corresponding number of fastening bolts securing the heat shield brick.
  • the fastening bolt preferably has a normal to the hot side in the axial direction of the fastening bolt
  • Bolt head widening in cross section, preferably with a receptacle for an assembly tool.
  • the bolt head which widens in cross section, ensures that the heat shield bricks attached to the supporting structure by means of the fastening bolt are secured against falling out.
  • the widening cross section of the bolt head provides increased passive safety in the event of a crack or break in a heat shield brick, for example as a result of a shock load.
  • a design of the fastening bolt and the heat shield stones to be fastened that is adapted to the expected load situation of the heat shield brick in the combustion chamber can be realized.
  • the bolt head is preferably lowered in corresponding recesses in adjacent heat shield bricks in the assembled state.
  • the corresponding recesses of adjacent heat shield stones complement one another to form a closed recess, for example circular in cross section, into which the bolt head is lowered.
  • the adjacent heat shield stones are securely positioned and held, the bolt head coming into contact with the adjacent heat shield stones in the region of the recess.
  • the lowering of the bolt head also provides a certain additional protection for the bolt head against excessive exposure to hot gas during operation of the combustion chamber.
  • the recessed bolt head preferably closes flat with the
  • the fastening bolt has a conical or frustoconical bolt head.
  • the conical shape is particularly advantageous with regard to the simple production of fastening bolts, since lathes can be used here.
  • the conical shape or truncated cone shape is particularly favorable compared to the heat shield brick to be held due to the symmetry of the conical outer surface also with regard to the load distribution as a result of the holding forces of the bolt head.
  • the fastening bolt is preferably made of metal.
  • high-temperature resistant materials such as high-temperature resistant steels or metal alloys based on nickel or cobalt come into question.
  • the fastening bolt is preferably displaceable against a spring force in the axial direction of the fastening bolt.
  • the heat shield brick is thereby anchored to the support structure by means of the fastening bolt, whereby, to compensate for the different thermal expansions that arise due to different thermal expansion coefficients of the materials, the fastening bolt can be displaced in the axial direction of the fastening bolt against the spring force.
  • the anchoring is preferably carried out on the wall of the support structure facing away from the inner lining of the combustion chamber.
  • the support structure has at least one wall through which at least one end section of the fastening bolt extends.
  • a spring element preferably a compression spring, acts on the end section of the bolt.
  • the compression spring surrounds the end section of the fastening bolt.
  • a holding element is preferably arranged on the end section of the fastening bolt, the holding element forming an abutment for the spring element.
  • the object aimed at a gas turbine is achieved according to the invention by a gas turbine having a combustion chamber which has heat shield bricks which are fastened in accordance with the above statements.
  • FIG. 3 shows a plan view of the hot side covering heat shield stones arranged side by side according to the invention
  • FIG. 4 shows a number of heat shield stones arranged side by side with an alternate geometry than FIG. 3, and
  • FIG. 5 shows a sectional view of the attachment of a heat shield brick to the support structure. Identical parts are provided with the same reference symbols in all figures.
  • the gas turbine 1 has a compressor 2 for combustion air, a combustion chamber 4, and a turbine 6 for driving the compressor 2 and a generator (not shown) and a work machine.
  • the turbine 6 and the compressor 2 are arranged on a common turbine shaft, also referred to as a turbine rotor, to which the generator or the working machine is also connected, and which is rotatably mounted about its central axis.
  • the combustion chamber 4, which is designed in the manner of an annular combustion chamber, is equipped with a number of burners for burning a liquid or gaseous fuel.
  • the turbine 6 has a number of rotatable rotor blades 12 connected to the turbine shaft 8.
  • the blades 12 are arranged in a ring shape on the turbine shaft 8 and thus form a number of rows of blades. Furthermore, the turbine 6 comprises a number of stationary guide vanes 14, which are also attached to an inner casing 16 of the turbines in the form of a ring, forming rows of guide vanes.
  • the blades 12 are used to drive the turbine shaft by transmitting momentum from the hot medium flowing through the turbine 6, the working medium M.
  • the guide blades 14, serve to guide the flow of the working medium M between two in the flow direction of the working medium M, for. B. the hot gas, seen successive rows of blades or blade rings.
  • a successive pair of a ring of guide blades 14 or a row of guide blades and a ring of rotor blades 12 or a row of rotor blades is also referred to as a turbine stage.
  • Each guide vane 14 has a platform 18, also referred to as a blade root, which is arranged as a wall element for fixing the respective guide vane 14 to the inner housing of the turbine 6.
  • the platform 18 is a thermally equally heavily loaded component that forms the outer boundary of a hot gas channel for the working medium M flowing through the turbine 6.
  • Each rotor blade 12 is fastened in an analogous manner to the turbine shaft 8 via a platform 20 which is also referred to as a blade root.
  • a guide ring 21 is arranged on the inner housing 16 of the turbine 6.
  • the outer surface of each guide ring 21 is also exposed to the hot working medium M flowing through the turbine 6 and is spaced in the radial direction from the outer end of the rotor blade 12 opposite it by a gap.
  • the guide rings 21 arranged between adjacent guide vane rows serve in particular as cover elements which protect the inner wall 16 or other housings - single-board parts - against thermal overloading by the hot working medium M flowing through the turbine 6.
  • the combustion chamber 4 is delimited by a combustion chamber housing 29, a combustion chamber wall 24 being formed on the combustion chamber side.
  • the combustion chamber 4 is designed as a so-called annular combustion chamber, in which a plurality of burners 10 arranged in the circumferential direction around the turbine shaft 8 open into a common combustion chamber space.
  • the combustion chamber 4 is configured in its entirety as an annular structure which is positioned around the turbine shaft 8.
  • the combustion chamber 4 is designed for comparatively high hot gas temperatures of the working medium M from approximately 1200 ° C. to 1500 ° C.
  • the combustion chamber wall 24 is provided on its side facing the working medium M with a combustion chamber lining formed from heat shield stones 26.
  • the heat shield elements 26 are here suitable - in the fi gur 1 fastener not shown - attached to the combustion chamber wall 24.
  • FIG. 2 shows an example for the clamping of a heat shield block 26 according to the prior art, details of the clamping of a block 26 on a support structure 31 being shown.
  • the heat shield brick 26 has two opposing flanks 55 between the hot side 35 and the cold side 33, which are provided with gripping grooves 57, in each of which a gripping tab 59 of an essentially L-shaped holder 61 engages.
  • the holders 61 are anchored in a groove 63 of the support structure 31 on fastening tabs 65 which rest on the groove bottom 67. Both fastening tabs 65 are arranged such that they protrude under the heat shield brick 26 and are accordingly protected by this against excessive thermal stress.
  • a spacer 69 is indicated, which can be used to distance holders 61 which are assigned to the different stones 26.
  • a holder 61 is assigned to exactly one heat shield stone 26 and in doing so, with its gripping tab 59, engages with the gripping groove 57.
  • a plurality of holders 61 generally four pieces are required to secure a single heat shield brick 26 to the support structure 31. The installation effort is considerable since, in order to replace a heat shield brick 26, a whole series of adjacent heat shield bricks 26 must also be detached from the support structure 31.
  • the interlocking concept ensures that the heat shield brick 26 is only insufficiently secured in the event of a possible breakage or continuous cracking of the heat shield brick 26.
  • the detachment of fragments from a heat shield brick 26 is associated with serious dangers for the combustion chamber 4 and the turbine 6 downstream of the combustion chamber 4 (cf. FIG. 1).
  • This is countered by the invention with a combustion chamber 4 with a completely new fastening concept for heat shield bricks 26 in order to overcome the disadvantages described.
  • FIG. 3 by way of example on the basis of a top view of the hot side 35 of a number of heat shield stones 26A to 26D which are arranged adjacent to one another and cover the entire area.
  • the heat shield stones 26A, 26B, 26C, 26D have a quadrangular, approximately square, geometry.
  • a heat shield brick 26A and an adjacent heat shield brick 26D are fastened by a common fastening bolt 37 to the support structure 31 (not shown in more detail in FIG. 3 (see the discussion in FIG. 5 below)).
  • a common fastening bolt 37 is provided in a corner 71 or a corner point and holds adjacent heat shield stones 26A, 26B, 26C, 26D.
  • the fastening bolt 37 is accessible from the hot side 35 and has a receptacle 41 for the engagement of an assembly tool.
  • the bolt head 39 is lowered into corresponding recesses 43 of adjacent heat shield stones 26A, 26B, 26C, 26D, the recessed bolt head 39 being planar with the hot side surface 45 of the heat shield stones 26A to 26D.
  • the fastening bolt 37 is made of a metallic material and, for cooling purposes, is designed, if necessary, with coolant bores for the application of a coolant.
  • FIG. 4 shows heat shield stones 26A to 26F which have a triangular basic shape.
  • Each of the heat shield bricks 26A to 26F here has the geometry of an equilateral triangle, as a result of which a full coverage of a combustion chamber wall 24 (see FIG. 1) is achieved in a particularly simple manner.
  • this type of combustion chamber lining are in the corner 71 or the corner point six heat shield stones 26A to 26F adjacent to one another and are fastened and secured in the corner 71 by a single common fastening bolt 37.
  • the multi-faced securing largely prevents the removal of fragments from the composite, so that, compared to conventional fastening concepts for combustion chamber linings based on heat shield bricks, an increased service life, in particular good emergency running properties, is achieved.
  • the assembly and disassembly of a single one of the heat shield stones 26A to 26F is possible very easily, since the fastening bolt 37 is accessible from the hot side 35 and can therefore be released from the combustion chamber with a simple assembly tool which is designed for engagement in the receptacle 41 ,
  • FIG. 5 For a better illustration of the combustion chamber 4 according to the invention, a section of a section of a combustion chamber wall 24 lined with heat shield bricks 26A, 26B is shown in FIG. 5.
  • the heat shield stones 26A, 26B are arranged adjacent to one another and fastened to the supporting structure 31 by a common fastening bolt 37.
  • the fastening takes place in such a way that the fastening bolt 37 can be displaced in the axial direction of the fastening bolt 37 against a spring force.
  • the support structure 31 has a wall 47 through which an end section 49 of the fastening bolt 37 extends.
  • a spring element 51 engages on the end section 49 of the fastening bolt 37, which in this case is a compression spring which is pretensioned in the installed state.
  • the compression spring 51 surrounds the end section 49.
  • a holding element 53 is arranged on the end section 49, the holding element 53 forming an abutment for the spring element 51.
  • a spring-elastic attachment of the heat shield stones 26A, 26B to the supporting structure 31 is thereby ensured, so that in particular thermal relative expansions due to different thermal expansion coefficients of the materials used are compensated for become.
  • the bolt head 39 terminates with the hot side surface 45 of the heat shield bricks 26A, 26B in a planar manner, so that good flow guidance properties for the hot working medium M with which the heat shield elements 26A, 26B are applied during operation of the combustion chamber 4 are ensured.
  • the bolt head 39 of the fastening bolt 37 is conical or frustoconical.
  • the flank of a respective heat shield brick 26A, 26B is provided with a corresponding recess 43 corresponding to the conical surface of the conical bolt head 39.
  • the bolt head 39 is lowered into the corresponding recesses in the adjacent heat shield bricks 26A, 26B.
  • the heat shield stones 26A, 26B are spaced apart from the support structure 31 by a gap 73.
  • This gap 73 can, if necessary, be effected by suitable spacing or damping elements (not shown in detail) which are arranged between the heat shield brick 26A, 26B and the supporting structure 31.
  • suitable spacing or damping elements not shown in detail
  • other supply channels for a coolant K are also possible.
  • the gap 73 is filled with a coolant K, for example
  • the coolant K cools the heat shield bricks 26A, 26B from the cold side 33 and also serves to cool the fastening bolt 37.
  • the fastening bolt 37 which is advantageously made of a metal for this purpose, is for efficient heat dissipation.
  • the fastening bolt 37 has in its end section 49 a thread which is in engagement with a counter thread of the holding element 53, so that the spring force of the spring element 51 can be adjusted via the screw connection.
  • the fastening bolt 37 is positioned in a corner 71 or a corner point of adjacent heat shield stones 26A, 26B.
  • the fastening bolt 37 is positioned on and on an edge of adjacent heat shield elements 26A, 26B
  • the heat shield elements 26A, 26B are securely and permanently attached to the support structure 31 together.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L'invention concerne une chambre de combustion pour turbine à gaz. La paroi de la chambre de combustion (24) présente, à l'intérieur, une pluralité de pierres de bouclier thermique (26A, 26B, 26C, 26D), qui sont disposées sensiblement en nappe, les unes à côté des autres et sont fixées sur une structure porteuse. Chaque pierre du bouclier thermique (26A, 26B, 26C, 26D) présente une face froide tournée vers la structure porteuse et une face chaude opposée à la face froide et pouvant être sollicitée par un milieu chaud. Afin de simplifier le montage et d'augmenter la sécurité passive, il est prévu qu'une pierre du bouclier thermique (26A, 26B) et que la pierre de bouclier thermique (26C, 26D) qui lui est adjacente soient fixées sur la structure porteuse par au moins un boulon de fixation (37) commun. Comparativement aux structures connues, cette conception de la chambre de combustion complique la chute de fragments en cas de rupture d'une pierre de bouclier thermique (26A, 26B). En outre, ce système permet de démonter et de monter séparément, une pierre individuelle de bouclier thermique. L'invention concerne par ailleurs une turbine à gaz qui compte une chambre de combustion de ce type.
PCT/EP2004/008117 2003-08-13 2004-07-20 Chambre de combustion, notamment chambre de combustion pour turbine a gaz Ceased WO2005019731A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04741178A EP1656522A1 (fr) 2003-08-13 2004-07-20 Chambre de combustion, notamment chambre de combustion pour turbine a gaz

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03018416A EP1507117A1 (fr) 2003-08-13 2003-08-13 Chambre de combustion, notamment chambre de combustion pour turbine à gaz
EP03018416.2 2003-08-13

Publications (1)

Publication Number Publication Date
WO2005019731A1 true WO2005019731A1 (fr) 2005-03-03

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WO (1) WO2005019731A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
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US9518737B2 (en) 2012-12-12 2016-12-13 Rolls-Royce Plc Combustion chamber with cooling passage in fastener arrangement joining inner and outer walls
EP3104079A1 (fr) * 2015-06-08 2016-12-14 A.S.EN. Ansaldo Sviluppo Energia S.r.l. Dispositif d'ancrage de boucliers thermiques de chambres de combustion de turbines à gaz
CN113586843A (zh) * 2021-08-31 2021-11-02 上海电气集团股份有限公司 隔热瓦块安装紧固结构及高温加热设备

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DE102007030983A1 (de) * 2007-07-04 2009-01-15 Federal-Mogul Sealing Systems Gmbh Schutzschild mit integriertem Dämpfungselement zur thermischen Abschirmung von Bauteilen
WO2015017180A1 (fr) 2013-08-01 2015-02-05 United Technologies Corporation Système de fixation pour panneau de cloison en céramique
EP3211307B1 (fr) * 2016-02-26 2019-06-05 Jünger + Gräter GmbH Feuerfestbau Élément protecteur réfractaire
DE102016114177B4 (de) 2016-04-15 2023-11-23 Jünger+Gräter GmbH Feuerfestschutzsegment
US11293637B2 (en) 2018-10-15 2022-04-05 Raytheon Technologies Corporation Combustor liner attachment assembly for gas turbine engine
US11255547B2 (en) 2018-10-15 2022-02-22 Raytheon Technologies Corporation Combustor liner attachment assembly for gas turbine engine

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EP0658724A2 (fr) * 1993-12-18 1995-06-21 ABBPATENT GmbH Chambre de combustion avec garniture céramique
DE19730751A1 (de) * 1996-07-24 1998-01-29 Siemens Ag Keramisches Bauteil für eine Wärmeschutzschicht sowie Wärmeschutzschicht
US20020050237A1 (en) * 1998-03-19 2002-05-02 Bernard Becker Wall segment for a combustion area, and a combustion area

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US4820097A (en) * 1988-03-18 1989-04-11 United Technologies Corporation Fastener with airflow opening
US5363643A (en) * 1993-02-08 1994-11-15 General Electric Company Segmented combustor
EP0658724A2 (fr) * 1993-12-18 1995-06-21 ABBPATENT GmbH Chambre de combustion avec garniture céramique
DE19730751A1 (de) * 1996-07-24 1998-01-29 Siemens Ag Keramisches Bauteil für eine Wärmeschutzschicht sowie Wärmeschutzschicht
US20020050237A1 (en) * 1998-03-19 2002-05-02 Bernard Becker Wall segment for a combustion area, and a combustion area

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9518737B2 (en) 2012-12-12 2016-12-13 Rolls-Royce Plc Combustion chamber with cooling passage in fastener arrangement joining inner and outer walls
EP3104079A1 (fr) * 2015-06-08 2016-12-14 A.S.EN. Ansaldo Sviluppo Energia S.r.l. Dispositif d'ancrage de boucliers thermiques de chambres de combustion de turbines à gaz
CN113586843A (zh) * 2021-08-31 2021-11-02 上海电气集团股份有限公司 隔热瓦块安装紧固结构及高温加热设备

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