EP1701095B1 - Ecran thermique - Google Patents

Ecran thermique Download PDF

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Publication number
EP1701095B1
EP1701095B1 EP05002511A EP05002511A EP1701095B1 EP 1701095 B1 EP1701095 B1 EP 1701095B1 EP 05002511 A EP05002511 A EP 05002511A EP 05002511 A EP05002511 A EP 05002511A EP 1701095 B1 EP1701095 B1 EP 1701095B1
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EP
European Patent Office
Prior art keywords
heat shield
elements
section
securing
cooling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP05002511A
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German (de)
English (en)
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EP1701095A1 (fr
Inventor
Andreas Heilos
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 ES05002511T priority Critical patent/ES2378375T3/es
Priority to EP05002511A priority patent/EP1701095B1/fr
Priority to CN2006100060525A priority patent/CN1818527B/zh
Priority to JP2006024347A priority patent/JP5105745B2/ja
Priority to US11/347,545 priority patent/US7779637B2/en
Publication of EP1701095A1 publication Critical patent/EP1701095A1/fr
Application granted granted Critical
Publication of EP1701095B1 publication Critical patent/EP1701095B1/fr
Active 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
    • F23M5/04—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
    • 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
    • F23M2900/05002—Means for accommodate thermal expansion of the wall liner
    • 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
    • F23R2900/03044—Impingement cooled combustion chamber walls or subassemblies

Definitions

  • the present invention relates to a heat shield on a support structure with a number of heat shield elements, which are fixed to the support structure, leaving gaps between adjacent heat shield elements, with a number of holding elements, with which the heat shield elements are attached to the support structure and the one in the heat shield elements having a gripping gripping portion, and with a cooling system for cooling the holding elements.
  • the present invention relates to a heat shield element and a holding element for holding a heat shield element to a support structure.
  • Heat shields are used, for example, in combustion chambers or flame tubes, which may be part of a kiln, a hot gas duct or a gas turbine and in which a hot medium is generated or guided, are used.
  • thermally highly stressed gas turbine combustion chambers are lined with a heat shield to protect against excessive thermal stress.
  • the heat shield typically comprises a number of heat shield elements arranged on a support structure that cover the wall of the combustion chamber against the hot combustion exhaust gas. In order not to hinder the thermal expansion of the heat shield elements in contact with the hot combustion exhaust gases, they are attached to the support structure leaving gaps between adjacent heat shield elements.
  • the EP 1 126 221 A1 discloses a heat shield element for lining a combustion chamber wall of a gas turbine.
  • the heat shield element comprises a hot and a cold side, wherein a peripheral side connecting the hot and the cold side has a groove which has an engagement section, wherein the material portion between the groove and the cold side forms a retaining bar. In the groove engages a holding element for holding the heat shield on a support structure with a holder head and a mounting portion.
  • Such a heat shield on a support structure is for example in EP 0 558 540 B1 described.
  • ceramic heat shield elements have a hot side facing the hot exhaust gas, a cold side opposite the hot side, and four peripheral sides connecting the hot side with the cold side. Two peripheral sides facing away from each other have grooves in which gripping sections of holders can intervene.
  • the holders have a mounting portion for attachment to the support structure and a holding head with the gripping portion.
  • the attachment portions are fixed to the support structure and the gripping portions of the support heads are brought into engagement with the grooves of the heat shield members.
  • the holders are made of metal and have spring properties.
  • the spring properties allow yielding of the holding head with a thermally induced expansion of the heat shield elements and thereby prevent cracking in the heat shield elements or a breakage of the holding elements.
  • the spring action allows, within certain limits, a mobility of the heat shield elements relative to the support structure.
  • a further object of the invention is to provide an advantageous holding element for holding a heat shield element having at least one groove on a support structure.
  • the first object is achieved by a heat shield according to claim 10, the second object by a holding element according to claim 1 and the third object by a heat shield element according to claim 7.
  • the dependent claims contain advantageous embodiments of the invention.
  • a holding element according to the invention for holding a heat shield element having at least one groove on a support structure comprises a holder head, which has a gripping section suitably designed for engagement in the groove of the heat shield element and a fixing section suitably designed for fastening the holding element to the support structure.
  • at least one passage opening in the attachment portion is arranged such and designed such that, when the attachment portion is attached to the support structure, direct supply of cooling fluid to the grip portion through the passage opening from the support structure is possible.
  • the direct feeding of the cooling fluid to the gripping portion of the holding element makes it possible to effectively cool this, without having to necessarily block the entire gap between adjacent heat shield elements with blocking air.
  • the through opening is arranged such that the cooling fluid can be fed to the cold surface.
  • the cooling fluid supplied to the cold surface must first bypass the cold surface before it can penetrate into the gap between adjacent heat shield elements. When flowing around the cold surface, this is cooled, so that the same cooling performance as in the prior art can be achieved with a smaller amount of cooling fluid.
  • the cooling performance can be further increased when the through hole is disposed in the attachment portion such that at least a portion of the cold surface is directly to be blown with cooling fluid from a direction including an acute angle with the surface normal of the blown portion.
  • this embodiment enables an effective impingement cooling of the cold surface, ie a cooling in which a cooling fluid jet impinges on the surface to be cooled. After impacting the blown portion of the cold surface, the cooling fluid flows along the remaining portions of the cold surface into the gap between the heat shield elements. In this case, the flowing cooling fluid leads to a convective cooling of the remaining regions of the gripping portion.
  • the passage opening may be formed as a slot.
  • the design as a slot increases the scope when mounting the retaining element and the support structure without the possibility of directly feeding cooling fluid to the gripping portion to affect.
  • the slot can also be designed such that it can be used as a disassembly hole at the same time.
  • the gripping portion has a longitudinal cross-section, which has a curvature, the belly points away from the attachment portion.
  • a cooling fluid channel can be formed between the gripping portion of the holding element and a held heat shield element, which is formed on the one hand by the heat shield element and on the other hand by the curved gripping portion.
  • a held heat shield element which is formed on the one hand by the heat shield element and on the other hand by the curved gripping portion.
  • the need for cooling fluid can be further reduced if the hot surface of the gripping portion has a heat-insulating coating. Additionally or alternatively, the hot surface may also be provided with a corrosion-inhibiting and / or oxidation-inhibiting coating. All effects can also be realized in a single coating.
  • a heat shield element comprises a hot side facing a hot medium, a cold side opposite the hot side, and circumferential sides connecting the hot side to the cold side.
  • a groove is formed, which has at least one suitable for the engagement of a gripping portion of a holding element engaging portion.
  • the material section between the groove and the cold side forms a retaining bolt, which has in the region of the engagement portion at least one groove opening to the cold side recess.
  • the recess in the retaining bolt makes it possible to directly supply cooling fluid to a retaining portion of a retaining element engaging in the groove of the heat shield element, thus improving the cooling effect in the area of the grip portion.
  • grooves with the respective groove to the cold side opening recesses may be present in at least two mutually remote peripheral sides of the heat shield element. This makes it possible to keep the heat shield element on two sides facing away from each other with directly to be cooled holding elements and thus to achieve with the directly to be cooled holding elements holding the heat shield element clamping effect.
  • a particularly high resistance and thermal insulation provides the heat shield element according to the invention, if it is designed as a ceramic heat shield element.
  • a heat shield according to the invention on a supporting structure comprises a number of heat shield elements, which are secured to the supporting structure, leaving gaps between adjacent heat shield elements, a number of holding elements with which the heat shield elements are fastened to the supporting structure and which have a gripping section engaging in the heat shield elements, and a cooling system for cooling the retaining elements.
  • the cooling system is designed such that a direct supply of cooling fluid to the gripping portions of the holding elements is possible.
  • the requirements for the blocking of the gaps between adjacent heat shield elements can be reduced.
  • the combustion temperature can drop and thus the thermal stress in the heat shield elements can be reduced.
  • the NOx emissions are positively influenced.
  • either the NOx emissions of a gas turbine plant equipped with the heat shield according to the invention can be reduced at the same power as that of a gas turbine plant according to the prior art or the power and the efficiency can be increased while the NOx emissions remain constant.
  • reducing the stress on the heat shields reduces the replacement rates of the heat shield elements as well as the risk of heat shield element loss.
  • a particularly effective cooling of the gripping portions of the holding elements in the heat shield is possible if the cooling system is designed such that an impingement cooling of the gripping portions is possible.
  • the cooling system comprises a number of cooling fluid openings arranged in the support structure for blowing out a cooling fluid.
  • the heat shield elements are at least partially designed as heat shield elements according to the invention and the holding elements at least partially as inventive holding elements.
  • the holding elements are secured to the support structure and the heat shield elements are held by the holding elements such that the through openings of the holding elements are each aligned with a cooling fluid opening of the support structure and a recess of a heat shield element.
  • this embodiment enables impingement cooling of the gripping sections of the holding elements, in which a cooling fluid jet issuing from a cooling fluid opening bounces unhindered on the cold side of the gripping portion of a heat shield element.
  • the cooling system may comprise further cooling fluid openings which are arranged in the support structure in such a way that cooling fluid emerging from them exits in the direction of fastening sections of retaining elements.
  • these further cooling fluid openings may be arranged in the support structure in such a way that the cooling fluid emerging from them leads to impingement cooling of the attachment sections.
  • FIG. 1 An inventive retaining element is in FIG. 1 shown in a perspective view.
  • the retaining element 1 is made of metal and comprises a fastening section 3, also called a retaining spring, with which the retaining element 1 can be fastened to a support structure of a combustion chamber wall, for example the combustion chamber wall of a gas turbine plant.
  • a fastening section 3 also called a retaining spring
  • the holding elements are guided on the support structure 30 in a groove 31 (see. Fig. 5 ).
  • a groove 31 engages a widened portion 4 of the mounting portion 3, the so-called.
  • Shoe of the retaining element 1 closely tolerated in a parallel to the surface of the support structure 30 embedded about 10 mm deep groove 31 a.
  • the groove 31 is designed so that it only has the groove base 33 required for the insertion of the shoes 4 width. When pulling up the holding element 1 in the groove 31, this is supported on the narrow portion 35 of the groove 31, whereby a holding force holding the holding element 1 is mediated.
  • the non-widened part of the attachment portion 3 can be raised freely in the groove 31.
  • the attachment opening 5 in the shoe 4 serves to fix some holding elements 1 in the groove direction.
  • a heat shield element is held on two opposite sides of two holding elements 1, that is, a total of four holding elements 1.
  • the retaining elements 1 on one of the two sides are secured with locking masts extending through the fastening opening 5 of the fastening sections 3.
  • the attachment portions 3 of the holding members 1 arranged on the other side are not secured, so that they slide can not hinder the thermal expansion of the heat shield element.
  • a holder head 7 is formed, which has a section 9 bent at substantially right angles to the retaining spring 3 and a gripping section 11, which in turn is angled substantially perpendicularly to the section 9.
  • the gripping portion 11, also called the gripping tab, is used to engage in the groove of a heat shield element.
  • a heat shield element can be clamped by engagement of gripping tabs 11 of retaining elements 1, which are fixed to a support structure in the grooves of opposite sides of the heat shield element with the support structure (see Fig. 3 ).
  • the holding element 1 comprises in the region of the transition from the retaining spring 3 to the section 9 at least partially by the retaining spring 3 extending opening, which is formed in the present embodiment as a slot 13 and allows blowing of the retaining spring 3 facing side of the gripping tab 11 with cooling air ,
  • a section of the retaining element 1 with the retaining spring 3, the section 9 and the slot 13 is in FIG. 2 shown enlarged.
  • FIG. 3 shows as an exemplary embodiment of a heat shield element according to the invention a ceramic heat shield element 15, with a hot side 17, a cold side 19 and the hot side 17 with the cold side 19 connecting peripheral sides 21 in a sectional side view.
  • Two opposite circumferential sides 21, of which in FIG. 3 only one can be seen, have grooves 23 into which the gripping tabs 11 can engage by holding elements 1.
  • the material section between the groove 23 and the cold side 19 of the heat shield element 15 forms a retaining bolt 25 which clamps the heat shield element 15 to the support structure by means of a retaining element 1 engaging in the groove 23 allows.
  • the holding element 1 has resilient properties, which allow easy insertion of the gripping tab 11 in the groove 23 and a secure holding of the ceramic heat shield element 15 to the support structure.
  • Cooling air is supplied via existing in the support structure 30 cooling air channels 32 and blown out in the direction of the cold side 29 of the gripping tab 11.
  • the blown cooling air passes through the elongated hole 13 in the direction of the cold surface 29 through the holding element 1 therethrough.
  • this has a recess 26 in the region of the gripping tab 11.
  • FIGS. 4 and 5 a perspective view of the ceramic heat shield element 15, once with the gripping tab 11 of a holding element 1 in engagement with the groove 23 (FIG. FIG. 4 ) and once without holding element 1 ( FIG. 5 ).
  • the cooling air blown out of the cooling air channels 32 can reach the cold surface 29 of the gripping tab 11 unhindered through the oblong hole 13 and the recess 26 and strike there substantially perpendicular to the cold surface 29.
  • Essentially perpendicular is to be understood here to the effect that the direction of flow with the surface normal of the cold surface 29 in that area in which the cooling air impinges on the cold surface 29, an acute angle, preferably an angle of 20 °.
  • the cooling air impinging on the cold side 29 is deflected and flows along the cold surface 29 through the flow channel formed between the holding bar 25 and the cold surface 29. At the two ends 22 and 24 of the gripping tab 11, the cooling air finally exits this flow channel into the gap 14 between the heat shield elements 15.
  • the cooling of the gripping tab 11 takes place in that region in which the cooling air impinges on the cold surface 29 as impingement cooling and in the areas in which the cooling air flows along the cold surface 29 convectively. Likewise, the cooling of the section 9 is convective.
  • second cooling air ducts 34 are arranged, through the opening of cooling air is blown in the direction of the support structure facing side of the retaining spring 3.
  • the blown out of the cooling air ducts 34 cooling air then flows along the retaining springs 3 along and thus leads to a convective cooling of the retaining springs.
  • the serving for Konvektivkühlung the retaining springs 3 cooling air finally enters through the column 14 between adjacent heat shield elements 15 in the combustion chamber, where it also serves for Konvektivkühlung the sections 9 of the holder heads 7.
  • the openings of the cooling air passages 34 may be reduced in size.
  • a cooling of the inside of the holder head 7, and in particular the gripping tab 11, takes place can be in the heat shield according to the invention achieve an improved cooling effect. This can be used to reduce the cooling air output, and thus the flow of cooling air into the combustion chamber.
  • the cooling air consumption can be further reduced if the hot surface 27 of the gripping tab 11 is provided with a heat-insulating coating, a so-called Thermal Barrier Coating (TBC). Additionally or alternatively, a corrosion and / or oxidation-inhibiting coating may also be present.
  • TBC Thermal Barrier Coating
  • a second embodiment of the holding element according to the invention is in FIG. 7 represented together with a ceramic heat shield element 15 in a sectional side view.
  • the holding member 101 according to the second embodiment differs from the holding member 1 according to the first embodiment in that the gripping tab 111 of the holder head 107 has a bulge 112 whose belly faces away from the holding spring 103.
  • the outflow of the cooling surface bouncing on the cold surface 129 of the gripping tab 11 can be improved.
  • the enlarged compared to the first embodiment, flow cross section of the flow channel formed between the cold surface 129 and the retaining bar 25 allows improved removal of the cooling air towards the outer regions of the gripping tab 11, which these and in particular the hot surface 127 can be better cooled.
  • the retaining spring 103 and the through hole 113 correspond to the retaining spring 3 and the through hole 13 of the first embodiment, respectively.
  • FIG. 6 shows a section of a heat shield according to the invention.
  • This comprises surface-mounted on the support structure 30 of a combustion chamber wall, for example, the wall of a gas turbine combustor, arranged ceramic heat shield elements 15.
  • the heat shield elements 15 are held by holding elements 1 according to the invention to the support structure 30. Between adjacent heat shield elements 15 remain column 14, which allow unhindered thermal expansion of the heat shield elements 15 when they are acted upon by the hot combustion exhaust gases of the gas turbine plant.
  • the support structure may have additional cooling air openings, which can be aligned in particular with the gaps 14 between adjacent heat shield elements 15. As a result, a direct blowing out of blocking air through the gaps 14 in the combustion chamber is possible.
  • passage opening 13 in the retaining springs of the retaining elements need not be designed in the form of a slot. For example, oval or round holes may also be present. Similarly, the passage opening 13 does not need to extend into the portion 9 of the holder head into it.
  • the passage opening can also serve as a so-called Zupferloch for disassembly of the heat shield, in particular when the through hole 13 extends into the portion 9 of the holder head 7 inside.

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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)

Claims (14)

  1. Elément ( 15 ) de bouclier thermique comprenant une face ( 17 ) chaude tournée vers un fluide chaud, une face ( 19 ) froide opposée à la face ( 17 ) chaude et des faces ( 21 ) de pourtour reliant la face ( 17 ) chaude à la face ( 19 ) froide, dans lequel il est formé dans au moins une face ( 21 ) de pourtour une rainure ( 23 ) qui a au moins un tronçon de pénétration dans lequel le tronçon de matière entre la rainure ( 23 ) et la face ( 19 ) froide forme un verrou ( 25 ) de maintien, caractérisé en ce que le verrou ( 25 ) de maintien a dans la zone du tronçon de pénétration un évidement ( 26 ) faisant déboucher la rainure ( 23 ) vers la face ( 19 ) froide.
  2. Elément ( 15 ) de bouclier thermique suivant la revendication 1, caractérisé en ce qu'il y a dans au moins deux faces ( 21 ) de pourtour éloignées l'une de l'autre des rainures ( 23 ) ayant des évidements ( 26 ) faisant déboucher la rainure ( 23 ) respective vers la face ( 19 ) froide.
  3. Elément ( 15 ) de bouclier thermique suivant la revendication 1 ou 2, caractérisé par sa conformation en élément de bouclier thermique en céramique.
  4. Elément ( 1, 101 ) de maintien pour maintenir un élément ( 15 ) de bouclier thermique suivant l'une des revendications 1 à 3, sur une structure ( 30 ) de support comprenant
    - une tête ( 7, 107) de maintien qui comporte une partie ( 11, 111 ) de prise et
    - une partie ( 3, 103 ) de fixation constituée de manière propre à la fixation de l'élément ( 1, 101 ) de maintien sur la structure ( 30 ) de support,
    caractérisé en ce qu'il est disposé et constitué dans la partie ( 3, 103 ) de fixation au moins une ouverture ( 13, 113 ) traversante de manière à ce que pour une partie ( 3, 103 ) de fixation fixée à la structure ( 39 ) de support, un envoi direct de fluide de refroidissement à la partie ( 11, 111 ) de prise en passant par l'ouverture ( 13, 113 ) traversante soit possible à partir de la structure ( 30 ) de support.
  5. Elément ( 1, 101 ) de maintien suivant la revendication 4, caractérisé en ce que la partie ( 11, 111 ) de prise comporte une surface ( 27, 127 ) chaude tournée vers le fluide chaud et une surface ( 29, 129 ) froide éloignée de la surface ( 27, 127 ) chaude et l'ouverture ( 13, 113 ) traversante est disposée de manière à ce que le fluide de refroidissement puisse arriver à la surface ( 29, 129 ) froide.
  6. Elément ( 1, 101 ) de maintien suivant la revendication 5, caractérisé en ce que l'ouverture ( 13, 113 ) traversante est disposée dans la partie ( 3, 103 ) de fixation de manière à ce qu'au moins une partie de la surface ( 29, 129 ) froide puisse être soumise directement à l'insufflation de fluide de refroidissement dans une direction qui fait un angle aigu avec la normale à la surface de la partie qui reçoit l'insufflation.
  7. Elément ( 1, 101 ) de maintien suivant l'une des revendications 4 à 6, caractérisé en ce que l'ouverture ( 3, 103 ) traversante est constituée sous la forme d'un trou oblong.
  8. Elément ( 1, 101 ) de maintien suivant l'une des revendications 4 à 7, caractérisé en ce que la partie ( 111 ) de prise a une section transversale longitudinale ayant une courbure dont le ventre s'éloigne de la partie ( 103 ) de fixation.
  9. Elément ( 1, 101) de maintien suivant l'une des revendications 4 à 8, caractérisé en ce que la surface ( 27, 127 ) chaude de la partie ( 11, 111 ) de prise a un revêtement calorifuge et/ou inhibant la corrosion et/ou inhibant l'oxydation.
  10. Bouclier thermique sur une structure ( 30 ) de support comprenant
    - un certain nombre d'éléments ( 15 ) de bouclier thermique qui sont fixés à recouvrement de surface sur la structure ( 30 ) de support en laissant subsister des interstices ( 14 ) entre des éléments ( 15 ) de bouclier thermique voisins,
    - un certain nombre d'éléments ( 1, 101 ) de maintien par lesquels les éléments ( 15 ) de bouclier thermique sont fixés à la structure ( 30 ) de support et qui ont une partie ( 11, 111 ) de prise pénétrant dans les éléments ( 15 ) de bouclier thermique et,
    - un système ( 32, 13, 113, 26) de refroidissement pour le refroidissement des éléments ( 1, 101 ) de maintien
    caractérisé en ce que les éléments de bouclier thermique sont constitués suivant l'une des revendications 1 à 3 et les éléments de maintien suivant l'une des revendications 4 à 9, le système ( 32, 13, 113, 26 ) de refroidissement est conçu de manière à ce qu'en fonctionnement un envoi direct de fluide de refroidissement aux parties ( 11, 111 ) de prise des éléments ( 1, 101 ) de maintien soit possible.
  11. Bouclier thermique suivant la revendication 10, caractérisé en ce que le système ( 32, 13, 113, 26 ) de refroidissement est conçu de manière à ce qu'en fonctionnement un refroidissement par rebondissement des parties ( 11, 111 ) de prise soit possible.
  12. Bouclier thermique suivant la revendication 10 ou 11, caractérisé en ce que
    - le système de refroidissement comprend un certain nombre d'ouvertures ( 32) pour du fluide de refroidissement, disposées dans la structure de support et destinées à insuffler un fluide de refroidissement,
    - les éléments ( 1, 101 ) de maintien sont fixés à la structure ( 30 ) support et les éléments ( 15) de bouclier thermique sont maintenus par les éléments ( 1, 101) de maintien de manière à ce que les ouvertures ( 13, 113) traversantes des éléments ( 1, 101 ) de maintien soient alignées respectivement avec une ouverture ( 32) pour du fluide de refroidissement de la structure ( 30) de support et avec un évidement ( 26 ) d'un élément ( 15 ) de bouclier thermique.
  13. Bouclier thermique suivant la revendication 12, caractérisé en ce que le système de refroidissement comprend en outre un certain nombre d'ouvertures ( 34 ) pour du fluide de refroidissement, qui sont disposées dans la structure ( 30 ) de support de manière à ce que du fluide de refroidissement qui en sort sorte dans la direction allant sur les parties ( 3 ) de fixation d'éléments ( 1 ) de maintien.
  14. Bouclier thermique suivant la revendication 13, caractérisé en ce que le système de refroidissement comprend en outre un certain nombre d'ouvertures ( 34 ) pour du fluide de refroidissement, qui sont disposées dans la structure ( 30 ) de support de manière à ce que le fluide de refroidissement qui en sort entraîne un refroidissement par rebondissement des parties ( 3 ) de fixation.
EP05002511A 2005-02-07 2005-02-07 Ecran thermique Active EP1701095B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES05002511T ES2378375T3 (es) 2005-02-07 2005-02-07 Pantalla térmica
EP05002511A EP1701095B1 (fr) 2005-02-07 2005-02-07 Ecran thermique
CN2006100060525A CN1818527B (zh) 2005-02-07 2006-01-24 热屏
JP2006024347A JP5105745B2 (ja) 2005-02-07 2006-02-01 熱遮蔽
US11/347,545 US7779637B2 (en) 2005-02-07 2006-02-03 Heat shield

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05002511A EP1701095B1 (fr) 2005-02-07 2005-02-07 Ecran thermique

Publications (2)

Publication Number Publication Date
EP1701095A1 EP1701095A1 (fr) 2006-09-13
EP1701095B1 true EP1701095B1 (fr) 2012-01-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05002511A Active EP1701095B1 (fr) 2005-02-07 2005-02-07 Ecran thermique

Country Status (5)

Country Link
US (1) US7779637B2 (fr)
EP (1) EP1701095B1 (fr)
JP (1) JP5105745B2 (fr)
CN (1) CN1818527B (fr)
ES (1) ES2378375T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020200568A1 (fr) 2019-04-03 2020-10-08 Siemens Aktiengesellschaft Carreau d'écran thermique à fonction d'amortissement
DE102019219845A1 (de) * 2019-12-17 2021-06-17 Siemens Aktiengesellschaft Hitzeschildkachel für eine Brennkammer sowie Brennkammer
WO2021121862A1 (fr) 2019-12-17 2021-06-24 Siemens Energy Global GmbH & Co. KG Carreau de protection thermique pour une chambre de combustion, et chambre de combustion
DE102020209977A1 (de) 2020-08-06 2022-02-10 Siemens Gas And Power Gmbh & Co. Kg Hitzeschildkachel für eine Brennkammer sowie Brennkammer

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EP1701095A1 (fr) 2006-09-13
JP2006220409A (ja) 2006-08-24
CN1818527A (zh) 2006-08-16
CN1818527B (zh) 2010-05-26
US20060176671A1 (en) 2006-08-10
JP5105745B2 (ja) 2012-12-26
ES2378375T3 (es) 2012-04-11

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