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EP4078031A1 - Carreau de protection thermique pour une chambre de combustion, et chambre de combustion - Google Patents

Carreau de protection thermique pour une chambre de combustion, et chambre de combustion

Info

Publication number
EP4078031A1
EP4078031A1 EP20823738.8A EP20823738A EP4078031A1 EP 4078031 A1 EP4078031 A1 EP 4078031A1 EP 20823738 A EP20823738 A EP 20823738A EP 4078031 A1 EP4078031 A1 EP 4078031A1
Authority
EP
European Patent Office
Prior art keywords
heat shield
fixing
combustion chamber
shield tile
tile
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
Application number
EP20823738.8A
Other languages
German (de)
English (en)
Other versions
EP4078031B1 (fr
Inventor
Claus Krusch
Christopher Grandt
Andreas Böttcher
Matthias Hase
Bernd Prade
Kai-Uwe Schildmacher
Thomas-Dieter Tenrahm
Sabine GRENDEL
Andre Kluge
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 Energy Global GmbH and Co KG
Original Assignee
Siemens Energy Global GmbH and Co KG
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
Priority claimed from DE102019219845.7A external-priority patent/DE102019219845A1/de
Priority claimed from DE102020209977.4A external-priority patent/DE102020209977A1/de
Application filed by Siemens Energy Global GmbH and Co KG filed Critical Siemens Energy Global GmbH and Co KG
Publication of EP4078031A1 publication Critical patent/EP4078031A1/fr
Application granted granted Critical
Publication of EP4078031B1 publication Critical patent/EP4078031B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F23R3/007—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
    • 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
    • F23R3/42—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

Definitions

  • the invention relates to a heat shield tile for use in a combustion chamber, in particular a gas turbine, wherein the heat shield tile is fixed in a transverse direction by the fastening means and can be secured in a longitudinal direction by a fixing element.
  • Heat shield tiles are well known from the prior art. There are both solutions in which the heat shield tile is attached to a support with screws and is thus essentially fi xed in the plane of the heat shield tile. Examples of this are from EP 1884317 Bl,
  • EP 2992270 B1 and WO 2018137803 A1 are known.
  • the heat shield tiles In the usual application of the heat shield tiles, these are attached to a support structure in several rows around the combustion chamber. To avoid contact between neighboring heat shield tiles, there is usually a slight gap between the respective heat shield tiles.
  • a combustion chamber with corresponding heat shield tiles is known from the prior art from EP 3134680 B1, in which runner-like elevations are arranged on the side facing the support structure on the Hit zeschildkachel, wel che engage in fastening grooves of the support structure and so with a shift prevent lengthways.
  • the generic heat shield tile is initially used for use in a combustion chamber.
  • the type of combustion chamber is initially irrelevant. However, it is particularly advantageous to use it in a combustion chamber of a gas turbine.
  • the heat shield tile here consists of a ceramic material. This has a hot cord pointing towards the combustion chamber when used in the combustion chamber te and an opposite cold side facing a support structure of the combustion chamber.
  • the heat shield tile he stretches here in a longitudinal direction and perpendicular to this in a transverse direction.
  • the hot side is connected to the cold side via two longitudinal edges running along the longitudinal direction and via two transverse edges running along the transverse direction.
  • Each longitudinal edge has at least one fastening receptacle on which a fastening means for fastening the heat shield tile can be attached when the heat shield tile is installed in the combustion chamber.
  • the design of the longitudinal edge and the transverse edge is otherwise initially irrelevant.
  • the heat shield tile has at least one fixing recess on the cold side. This is inevitably associated with the fact that the fixing recess does not penetrate the heat shield tile, but rather its surface on the hot side is unchanged (despite the fixing recess now present on the cold side).
  • the invention also provides that the fixing recess extends in the transverse direction over at least 0.1 times the width of the heat shield tile. In this regard, this length means that section of the fixing recess which enables a facility for securing the heat shield tile in the longitudinal direction.
  • fixing in the longitudinal direction is made possible without the structural volume being larger than that of a heat shield box. chel without the possibility of fixation in the longitudinal direction. This simplifies production and storage.
  • fixation in the longitudinal direction it may initially be sufficient if this is given ge in only one direction. If, for example, when the known fixation from the prior art is omitted, only a displacement of the heat shield tile is to be expected downstream, then a blockage against a displacement downstream is sufficient.
  • the fixing recess enables the heat shield tile to be blocked in the longitudinal direction in both opposite directions.
  • the depth of the fixing recess corresponds to at least 0.1 times the thickness of the Hitzeschildka chel, that is, the distance from the cold side to the hot side. It when the fixing recess has a depth of at least 0.15 times the thickness of the heat shield tile is particularly advantageous. In contrast, it is advantageous if the depth of the fixing recess is not greater than 0.3 times the thickness of the heat shield tile. A depth of at most 0.15 times the thickness of the heat shield tile is particularly advantageous here.
  • the fixing recess extending in the transverse direction in a first preferred embodiment and having a length in the transverse direction of at least 0.5 times the width of the heat shield tile in the transverse direction. It is particularly advantageous if the fixing recess extends over the entire width of the heat shield tile from one longitudinal edge to the opposite longitudinal edge.
  • the continuous fixing recess on the one hand promotes advantageous manufacture and on the other hand various possibilities for fixing in the combustion chamber are created by means of the fixing recess.
  • a displacement in the transverse direction for example for assembly, is possible.
  • a second embodiment it is advantageously provided that at least two fixing recesses are present, which are offset from one another in the transverse direction. In this case, it is also advantageous if the fixing recess extends a maximum of 0.3 times the width of the heat shield tile.
  • the heat shield tile With the use of at least two pocket-shaped fixing recesses, the heat shield tile is not unnecessarily weakened, so that both its insulation function is largely guaranteed and the stability is largely maintained.
  • Fi xieraus. Due to the usually hear the load on the Hitzeschildka cheln at their edges due to the existing gap between the heat shield tiles, it is advantageous if the Fi xieraus. is spaced at least from the transverse edges.
  • the fixing recess approximately - viewed in the longitudinal direction - in the center of the heat shield tile. This is considered to be given if it is in the middle of the heat shield tile or the distance from the center of the fixing recess to the center of the heat shield tile in the longitudinal direction corresponds to a maximum of 0.2 times the length of the heat shield tile in the longitudinal direction.
  • the Fixieraus recess is arranged at the level of the intended opposite arranged fastening means. Unless the heat shield tile has a special shape for attaching the fastening means Be, the position is determined directly in the longitudinal direction.
  • the heat shield tile has two fastening receptacles spaced apart in the longitudinal direction to each other on each longitudinal edge.
  • the fastening receptacles are designed such that the attachment of the respective fastening means is provided approximately in the middle of the respective fastening receptacle in the longitudinal direction.
  • the at least one fixing recess particularly advantageously the two fixing recesses that are in relation to one another, is located between two opposing fastening receptacles.
  • the advantageous position of the fixing recess between two fasteners results from the intended use of the heat shield tile.
  • the position of the fastening means to be attached can be fixed in the longitudinal direction to the position of the fixing recess.
  • the realization of a novel combustion chamber according to the invention is made possible light. It is particularly advantageous if it is the combustion chamber of a gas turbine.
  • the combustion chamber has a support structure on which heat shield elements are attached circumferentially in several rows.
  • the support structure has at least one fixing elevation that engages in the respective fixing recess of the respective heat shield tile.
  • the fixing elevation is mounted or firmly connected to the support structure.
  • at least one circumferential row for example two or three rows
  • heat shield tiles with fixing recess is seen in a particularly advantageous manner, for which a fixing elevation on the support structure is then required.
  • further rows of Hit zeschildkacheln can be provided which have no fixing recess or for which there is no fixing elevation.
  • the use of the heat shield tile according to the invention is made possible, so that its advantageous production and storage can be used.
  • the supporting structure has a plurality of fastening grooves that are spaced apart in the longitudinal direction and circumferential in the transverse direction. NEN necessary fasteners can be attached in these fastening grooves.
  • the support structure for a circumferential row of heat shield tiles has a circumferential fixation elevation. It is obvious that in this case the fixing recess must extend in the transverse direction over the entire width. Thus, the simple assembly of the heat shield tile is still made possible and the production of the supporting structure is not made unnecessarily difficult.
  • the support structure has a plurality of fixing bumps spaced apart from one another in the circumferential direction. This he allows in an advantageous manner the use of heat shield tile both with a continuous fixing recess and the use of heat shield tiles with a not continuously extending in the transverse direction fixing recess.
  • each of the heat shield tiles which have a continuous fixing recess or at least two fixing recesses. These are spaced apart from one another in the transverse direction. It is advantageous if the fixing bumps are arranged at the same height in the longitudinal direction when they belong to a heat shield tile with fixing recess.
  • the fixing bumps are each formed by mounted centering elements. This simplifies the production of the support structure with fixing bumps spaced apart in the circumferential direction. In particular, this embodiment enables retrofitting in existing systems.
  • the fixing bumps are fastened in at least one circumferential fastening groove of the support structure. This enables a simple, uncomplicated implementation of the combustion chamber according to the invention.
  • Fig. 1 shows a first embodiment of a Hitzeschildka chel with a continuous fixing recess
  • Fig. 2 shows a second embodiment of a Hitzeschildka chel with two spaced apart fixing recesses
  • FIG. 3 shows a section through a combustion chamber in the area of the heat shield tile according to FIG. 1;
  • FIG. 4 shows a section through a combustion chamber in the area of the heat shield tile according to FIG. 2;
  • Fig. 5 shows a third embodiment of a Hitzeschildka chel with two spaced apart fixing recesses
  • FIG. 6 shows a section through a combustion chamber in the area of the heat shield tile according to FIG. 5;
  • Fig. 8 shows an exemplary embodiment of a fastening means with a fixing elevation.
  • FIG. 1 a first exemplary embodiment of a heat shield tile 01 according to the invention is sketched in perspective.
  • This 01 is shown here from a cold side 03.
  • the two-dimensional shape with the cold side 03 to be seen in this view can be seen, with the hot side 02 being located opposite (on the concealed underside).
  • the cold side 03 faces a support structure 21 of a combustion chamber, the hot side 02 being arranged facing a combustion chamber.
  • the hot side 02 is connected to the cold side 03 via two longitudinal edges 04 which run along a longitudinal direction.
  • the hot side 02 is connected to the cold side 03 via two transverse edges 05, which extend along a transverse direction. A displacement of the heat shield tile 01 in the combustion chamber is prevented in the transverse direction when installed by the fastening means 25.
  • a fixing recess 07 extending in the direction of the hot side 02 is located on the cold side 03.
  • the fixing recess 07 extends over the entire width of the heat shield tile 01 from one longitudinal edge 04 to the opposite longitudinal edge 04. Furthermore, the advantageous position of the continuous fixing recess 07 in the middle of the heat shield tile 01 (viewed in the longitudinal direction) can be seen.
  • FIG. 2 a second exemplary embodiment for a heat shield tile 11 according to the invention is sketched. Similar to the previous example, this is shown in perspective with a view of the cold side 03. The hot side 02 is located opposite (also on the underside, not visible). Again, the heat shield tile 11 has two opposite longitudinal edges 14 extending along the longitudinal direction and two transverse edges 05 extending along a transverse direction. In contrast to the previous example, here continuous fastening receptacles 16 are used on the longitudinal edges 14. Although these 16 enable fastening means 25 to be attached to different positions, it is also provided, as before, that four fastening means 25 are used in the same position as before. This is easily seen from the fact that on the longitudinal edge 14 on the cold side 03 there is a recess to improve the cooling of the fastening means 25.
  • FIG. 3 The fixation in the longitudinal direction in the combustion chamber is shown in FIG. 3 with the sectional representation of a support structure 21 in a longitudinal section with the heat shield tile 01 attached to it.
  • the heat shield tile 01 can be seen with a view of a longitudinal edge 14 in which the two fastening mounts 06 are located.
  • the transverse edges 05 in this illustration are at the upper and lower ends of the heat shield tile 01.
  • the hot side 02 facing the combustion chamber is on the right-hand side in the illustration and the opposite cold side 03 is on the side facing the support structure 21.
  • the fixing recess 07 can also be seen, into which a fixed elevation 23 of the support structure 21 now engages. This prevents displacement in the longitudinal direction.
  • Two fastening grooves 22 can also be seen, which 22 are spaced apart from one another in the longitudinal direction.
  • each fastening means 25 the so-called Steinhal ter, are received, which 25 engage with the other end in the fastening receptacles 06 and thus fix the heat shield tile 01 on the support structure 21.
  • FIG. 4 the fastening of the heat shield tile 11 to the associated support structure 31 is sketched in a longitudinal section in the same type of representation as before.
  • the heat shield tile 11 can again be seen with the hot side 02 on the right and the opposite cold side 03 as well as the transverse edges 05 above and below .
  • the integral fixation lift is dispensed with here.
  • the support structure 31 has mounted centering elements 33. These 33 are each in a fastening groove 22 attached.
  • the heat shield tile 11 has the fixing recesses 17 lying between the fastening means 25, into which 17 the centering element 33 engages as a fixing elevation.
  • FIG. 5 analogous to Figures 1 and 3, a further embodiment of a Hitzeschildka chel 41 according to the invention is outlined. As in the previous example, this 41 has a hot side 02 (hidden lower side in the figure) and an opposite cold side 03 (upper side in the illustration).
  • the fastening receptacles 16 for attaching a fastening means 55 extend along the longitudinal direction on the two opposite longitudinal edges 14.
  • the fixation in the longitudinal direction only acts in one direction.
  • the Hitzeschildka chel 41 has two fixing recesses 47, which 47 has a vertical flank on one side to enable the installation of a fixing bump 53 and on the opposite side a bevel.
  • the Hitzeschildka chel 41 from FIG. 5 in the attachment to the support structure 31 in longitudinal section is sketched in FIG. 6 analogous to FIG.
  • the support structure 31 with the fastening grooves 22 can again be seen.
  • the stone holder 25 from the previous example is used in the lower fastening groove 22, it is provided, however, that a different stone holder 55 with an integrated stop plate is used as a fixing elevation 53 in the upper fastening groove 22.
  • the fixer lift 53 is supported in the form of the stop plate on one flank of the fastening groove 22 and opposite on the flank of the fixing recess 47. Axial fixation in one direction is thus made possible in a particularly simple manner.
  • the heat shield tile 11 of the second exemplary embodiment is sketched again in a perspective view with a view of the hot side 02.
  • the longitudinal edges 14 with the fastening receptacles 16 as well as the transverse edges 05 can also be seen.
  • the cold side 03 is located on the concealed underside.
  • an exemplary embodiment for a fastening element 55 with an integrated fixing elevation 53, so to speak as a combination of a stone holder with a stop plate, for use in a solution according to FIGS. 5 and 6 is outlined.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Connection Of Plates (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

L'invention concerne un carreau de protection thermique en céramique (01) destiné à être utilisé dans une chambre de combustion d'une turbine à gaz. Ce carreau a un côté chaud (02) et, à l'opposé de celui-ci, un côté froid (03), qui sont reliés l'un à l'autre par deux bords longitudinaux (04) mutuellement opposés qui présentent chacun au moins un évidement de fixation (06), et par deux bords transversaux (05). Pour la fixation dans une direction longitudinale, au moins un évidement de fixation (07, 17) est prévu sur le côté froid (03).
EP20823738.8A 2019-12-17 2020-11-20 Chambre de combustion avec boucliers thermiques Active EP4078031B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102019219845.7A DE102019219845A1 (de) 2019-12-17 2019-12-17 Hitzeschildkachel für eine Brennkammer sowie Brennkammer
DE102020209977.4A DE102020209977A1 (de) 2020-08-06 2020-08-06 Hitzeschildkachel für eine Brennkammer sowie Brennkammer
PCT/EP2020/082903 WO2021121862A1 (fr) 2019-12-17 2020-11-20 Carreau de protection thermique pour une chambre de combustion, et chambre de combustion

Publications (2)

Publication Number Publication Date
EP4078031A1 true EP4078031A1 (fr) 2022-10-26
EP4078031B1 EP4078031B1 (fr) 2024-07-17

Family

ID=73793176

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20823738.8A Active EP4078031B1 (fr) 2019-12-17 2020-11-20 Chambre de combustion avec boucliers thermiques

Country Status (3)

Country Link
EP (1) EP4078031B1 (fr)
CN (1) CN114829843B (fr)
WO (1) WO2021121862A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12474052B1 (en) 2024-05-20 2025-11-18 Rtx Corporation Dovetail features on panel rails or impingement sheet to hold panels
US12270545B1 (en) 2024-05-20 2025-04-08 Rtx Corporation T-head bolts or hollow flanged bushing with one thread or grooved end in a multi-liner arrangement

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4114768A1 (de) * 1990-05-17 1991-11-21 Siemens Ag Keramischer hitzeschild fuer eine heissgasfuehrende struktur
ES2378375T3 (es) 2005-02-07 2012-04-11 Siemens Aktiengesellschaft Pantalla térmica
EP1715248A1 (fr) * 2005-04-19 2006-10-25 Siemens Aktiengesellschaft Élément de fixation et portion correspondante d'un bouclier thermique ainsi que chambre de combustion munie d'un tel bouclier
DE502006005036D1 (de) 2006-08-05 2009-11-19 Brockhaus Heuer Gmbh Schraubstock mit Schnellverstellung der verschiebbaren Backe
EP2270395B1 (fr) * 2009-06-09 2015-01-14 Siemens Aktiengesellschaft Agencement d'élément de bouclier thermique et procédé de montage d'un élément de bouclier thermique
EP2762782A1 (fr) * 2013-02-05 2014-08-06 Siemens Aktiengesellschaft Élément de retenue pour maintenir une brique de protection thermique sur une structure porteuse
EP2992270B1 (fr) 2013-06-27 2019-03-27 Siemens Aktiengesellschaft Bouclier thermique
ITMI20131115A1 (it) * 2013-07-03 2015-01-04 Ansaldo Energia Spa Piastrella per il rivestimento di camere di combustione, in particolare di impianti per la produzione di energia elettrica a turbina a gas, e camera di combustione comprendente detta piastrella
WO2015036430A1 (fr) 2013-09-11 2015-03-19 Siemens Aktiengesellschaft Bouclier thermique céramique cunéiforme d'une chambre de combustion de turbine à gaz
CN107003000B (zh) * 2014-09-29 2019-09-24 西门子股份公司 用于燃烧室的隔热罩的隔热元件
DE102014221225A1 (de) * 2014-10-20 2016-04-21 Siemens Aktiengesellschaft Hitzeschildelement und Verfahren zu seiner Herstellung
CN110234617B (zh) 2017-01-25 2022-07-05 西门子能源全球有限两合公司 耐火成型体和用于其制造的方法

Also Published As

Publication number Publication date
CN114829843A (zh) 2022-07-29
WO2021121862A1 (fr) 2021-06-24
CN114829843B (zh) 2023-12-26
EP4078031B1 (fr) 2024-07-17

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