WO2010142510A1 - Agencement d'éléments de protection thermique avec un élément permettant d'engager une vis et procédé de montage d'un élément de protection thermique - Google Patents

Agencement d'éléments de protection thermique avec un élément permettant d'engager une vis et procédé de montage d'un élément de protection thermique Download PDF

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Publication number
WO2010142510A1
WO2010142510A1 PCT/EP2010/056649 EP2010056649W WO2010142510A1 WO 2010142510 A1 WO2010142510 A1 WO 2010142510A1 EP 2010056649 W EP2010056649 W EP 2010056649W WO 2010142510 A1 WO2010142510 A1 WO 2010142510A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat shield
shield element
support structure
element arrangement
screw
Prior art date
Application number
PCT/EP2010/056649
Other languages
German (de)
English (en)
Inventor
Andreas Böttcher
Andre Kluge
Marco Link
Wilhelm Scheidtmann
Gerhard Simon
Thomas-Dieter Tenrahm
Marc Tertilt
Sabine Tüschen
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to CN201080025610.7A priority Critical patent/CN102460022B/zh
Priority to EP10721767.1A priority patent/EP2440851B1/fr
Priority to ES10721767.1T priority patent/ES2527174T3/es
Priority to RU2011153264/06A priority patent/RU2516713C2/ru
Publication of WO2010142510A1 publication Critical patent/WO2010142510A1/fr

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

Definitions

  • the invention relates to a heat shield element arrangement comprising a heat shield element, a screw threading means, a method for mounting the heat shield element in a heat shield element arrangement and a use of the heat shield element arrangement with the features mentioned in the preambles of each independent claims.
  • Heat shields of turbine engines such as gas turbines and turbine engines, as used in power-generating power plants and in larger aircraft, have correspondingly large shielded by heat shields surfaces in the interior of the combustion chambers. Because of the thermal expansion and large dimensions, the shield must be composed of a plurality of individual ceramic heat shield elements spaced apart from one another with sufficient clearance. This gap offers the heat shield elements sufficient space for thermal expansion. However, since the gap also allows direct contact of the hot combustion gases with the support structure carrying the heat shield, a cooling fluid in the form of cooling air is blown through cooling passages as an effective countermeasure through the gaps in the direction of the combustion chamber. This cooling air is also used to specifically blow on the metallic brackets and thus to cool, with which the ceramic heat shield elements (CHS, Ceramic Heat Shields) are clamped to the support structure.
  • CHS Ceramic Heat Shields
  • brackets As simple and as one piece, a construction is known in which these brackets on the one hand in the circulating in the support structure and parallel IeI trained mounting grooves are engaged insertable, and on the other hand clamped with formed gripping portions in the formed in lateral edges of the ceramic heat shield elements Halteruten.
  • the heat shield elements are successively inserted with the holders in the grooves of the support structure, wherein the trailing elements obstruct the previously positioned in their positions.
  • a circular series of heat shield elements can be formed in a combustion chamber of a gas turbine.
  • the last remaining heat shield element can no longer be mounted in this way because the mutually present adjacent heat shield elements block a tangentially directed assembly movement.
  • a last heat shield element is referred to as a dummy plate or dummy. Consequently, solutions are used with screws for attaching the last heat shield element, which allow mounting of the heat shield element in the direction of the surface normal of the support structure.
  • a known screw connection uses four screws which engage in recesses formed in lateral edges of the heat shield element (see FIGS. 1 and 2).
  • This solution is disadvantaged in that the assembly requires a handling problem.
  • the handling of the four screws enforces, for example, the use of fixatives such as adhesive or tape, which are not reliable, so that the screws can be lost and must be found before commissioning due to high risk of damage to a turbine.
  • the overhead mounting is difficult because the screws can tilt by the fixation with tape and thus can not be inserted into the holes provided. Since this is the last heat shield, the screws can not be positioned by hand, but must be threaded into the holes using an Allen key - without sight. In particular, it is difficult to thread the fastening screws into the corresponding threaded bores of the support structure.
  • EP 1 701 095 A1 and EP 0 558 540 B1 describe, by way of example, a heat shield as described above with the described advantages and problems.
  • the heat shield elements are referred to in the art as stones and retaining elements holding them stone holder and recessed in the side edges of the heat shield elements grooves as pockets.
  • the object of the present invention is to make the mounting of a heat shield element, in particular a cap stone or a dummy, safe and uncomplicated in the direction of the surface normal of the support structure of a heat shield constructed from a large number of heat shield elements.
  • the invention according to a first aspect of a heat shield element assembly with a
  • Heat shield element in particular with a dummy, for a plurality of adjacent to a support structure arranged heat shield elements having heat shield.
  • the heat shield element in particular the dummy, is fastened to the support structure by means of at least one fastening screw in a screwing means provided in the support structure, for example in the form of at least one threaded nut.
  • the fastening means provided in the support structure is equipped with a funnel-shaped ffereneinfädelkar, in which the respective fastening screw can be inserted and pushed.
  • the screwing means has at least one resilient element, in particular a disc spring packet which, in order to compensate for the thermal expansion of the impact zeschildiatas serves.
  • the funnel-shaped ffereneinfädelstoff is fixed to a disk spring packet non-positively.
  • the funnel-shaped ffereneinfädelstoff is positively secured in a recess of the support structure.
  • the support structure may have at least one stone holder groove and in particular two stone holder grooves per row of heat shield element elements.
  • a particularly advantageous embodiment is obtained when the recess in the support structure with the Steinhalternut is identical. In this case, no special recess must be provided so that manufacturing costs can be saved.
  • the non-positive connection of the funnel-shaped ffereneinfädelffens is carried out by welding or press fit or integral with the screw or the support structure.
  • the welding is furthermore preferably carried out by spot welding, seam welding, electrical, by gas flame or friction / ultrasound.
  • the object of the invention is achieved by a ffereneinfädelkar for the heat shield element arrangement according to a preferred embodiment described above.
  • the ffereneinfädelkar is preferably formed by at least one inclined to the longitudinal axis of the fastening screw sliding surface, wherein the sliding surface is tapered to the diameter of the screwing means.
  • the object according to the invention is furthermore achieved by a method for mounting a heat shield element arrangement according to an embodiment described above. This is preferably achieved in that
  • the heat shield element which may in particular be a dummy, is brought in a position perpendicular to the support structure to its mounting position between adjacent heat shield elements on the support structure, and
  • the fastening screws are previously attached to the heat shield element.
  • the object according to the invention is also achieved by a use of the heat shield element arrangement according to a previously described preferred embodiment for forming a heat shield, in particular a capstone or a dummy of the heat shield, an internal combustion engine, in particular a turbine.
  • FIG. 1 shows a partial cross-sectional view through a known heat shield element assembly
  • Figure 2 is a partial perspective view of the known heat shield element of Fig.l.
  • FIG. 3 is a cross-sectional view of a Hitzeschildelernentan inch invention.
  • FIGS. 1 and 2 show a partial cross-sectional view through a known heat shield element arrangement 1.
  • the heat shield elements 3 or so-called bricks are fastened to the support structure 30 by means of a total of four screw connections.
  • they are keystones or dummies of a heat element shield.
  • lateral recesses or pockets 5 are formed with lateral recesses 6, in which the screw shaft 15 and screw head 13 are inserted laterally.
  • a pressure distributor or disc 14 is arranged, which distributes the pressure over a larger area and thus protects the ceramic body of the heat shield element 3.
  • a heat shield element 3 with all four attached screws 15 and pressure distributors 14 must now be mounted vertically on the support structure 30 according to the prior art, and the four screw shafts 15 must be threaded into the four correspondingly arranged in the support structure 30 screw holes. Because the screws inserted laterally in the pockets 5 can easily fall out, they are previously fixed in their positions with an adhesive or adhesive tape. When threading, however, this adhesive connection is easily lost and the screws can either fall out or be tilted and therefore no longer meet in the screw holes of the support structure 30th
  • the cooling is carried out, for example, as a ventilation via channels and ventilation lines 25.
  • the mounting groove or Steinhalternut 40 of the support structure 30 or special channels formed in the support structure serve.
  • the screw 15 is also screwed into a spring plate package 19 to allow thermal movement of the heat shield element.
  • the spring plate package 19 is installed in a package sleeve 20 which is closed by a fixing plate 22.
  • This fixing disc 22 prevents the disc spring and the threaded nut 21 from falling out when the screw 15 has not yet been inserted.
  • the threaded nut 21 is also secured in the package sleeve 20 against rotation, so that the fastening screw 15 can be screwed into it.
  • the threading of the fastening screws 15 represents a handling problem when in particular four fastening screws 15 have to be threaded.
  • FIG. 3 shows a partial cross-sectional view of a heat shield element arrangement 1 according to the invention.
  • the heat shield element 3 is located immediately before being vertically lowered with its fastening screw 15 and pressure distributor 14 inserted laterally into the pocket 5 into its position on the support structure 30.
  • a funnel-shaped screw threading means 33 is arranged on the disc spring assembly 19 serving as a screwing means 19.
  • the ffereneinfädelstoff 33 has a preferably circumferentially formed inclined sliding surface 35 which corresponds to the diameter of the screw Bungsstoffs 19, here the puncture in the plate spring package 19, rejuvenated.
  • the ffereneinfädelkar 33 is preferably formed here as a metallic funnel and inserted into a formed in the package sleeve 20 of the plate spring package 19 snug fit.
  • the fixation of the screw threading means 33 in the interference fit may be carried out in a known manner of fastening, such as spot welding, seam welding, friction welding, ultrasonic welding, interference fit, etc.
  • the screw threading means 33 may also be made integral with the package sleeve 20.
  • the screw threading means 33 can also be formed in the support structure 30.
  • the ffereneinfädelkar 33 is preferably arranged in the Steinhalternut 40 or another in the support structure 30 specially formed recess having a sufficient height h.
  • the screw threading means 33 according to the invention does not project from the support structure 30 and consequently does not interfere with the heat shield element arrangement 1.
  • the end of the fastening screw 15 is detected during assembly by the wider diameter of the funnel-shaped sterenein- threading means 33 and slides on the sliding surface 35 in the through hole of the screwing, d. H. in this case, the plate spring package 19th
  • the Steinhalternut 40 can, as described under Figure 1, continue to be used for introducing the cooling air, wherein the cooling air can flow around the ffereneinfädelstoff 33 due to the spacing to the walls of Steinhalternut 40 sufficiently well.
  • a ventilation duct 25 can also be used for this purpose.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Exhaust Silencers (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Connection Of Plates (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

L'invention concerne un agencement d'éléments de protection thermique (1) comprenant un élément de protection thermique (3) et servant à former un bouclier thermique constitué d'une pluralité d'éléments de protection thermique agencés de manière adjacente à une structure porteuse (30), l'élément de protection thermique (3) étant fixé à la structure porteuse (30) à l'aide d'au moins une vis de fixation (15) introduite dans un moyen de vissage situé dans la structure porteuse (30) et la structure porteuse (30) comportant au moins deux rainures parallèles (40) de support de briques par rangée d'éléments de protection thermique. Selon l'invention, le moyen de vissage situé dans la structure porteuse (30) comporte un élément en entonnoir (33) permettant d'engager une vis, élément dans lequel et à travers lequel la vis de fixation (15) respective peut être introduite.
PCT/EP2010/056649 2009-06-09 2010-05-14 Agencement d'éléments de protection thermique avec un élément permettant d'engager une vis et procédé de montage d'un élément de protection thermique WO2010142510A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201080025610.7A CN102460022B (zh) 2009-06-09 2010-05-14 带有螺栓穿引器件的热屏元件装置和安装热屏元件的方法
EP10721767.1A EP2440851B1 (fr) 2009-06-09 2010-05-14 Agencement d'élément d'un bouclier thermique doté d'un moyen de guidance de vis et procédé de montage d'un élément d'un bouclier thermique
ES10721767.1T ES2527174T3 (es) 2009-06-09 2010-05-14 Disposición de elemento de pantalla térmica con medio de guía de tornillo y procedimiento para el montaje de un elemento de pantalla térmica
RU2011153264/06A RU2516713C2 (ru) 2009-06-09 2010-05-14 Система теплозащитного экрана с элементами для вхождения винтов и способ монтажа элемента теплозащитного экрана

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP09162244A EP2261564A1 (fr) 2009-06-09 2009-06-09 Agencement d'élément d'un bouclier thermique doté d'un moyen de guidance de vis et procédé de montage d'un élément d'un bouclier thermique
EP09162244.9 2009-06-09

Publications (1)

Publication Number Publication Date
WO2010142510A1 true WO2010142510A1 (fr) 2010-12-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/056649 WO2010142510A1 (fr) 2009-06-09 2010-05-14 Agencement d'éléments de protection thermique avec un élément permettant d'engager une vis et procédé de montage d'un élément de protection thermique

Country Status (5)

Country Link
EP (2) EP2261564A1 (fr)
CN (1) CN102460022B (fr)
ES (1) ES2527174T3 (fr)
RU (1) RU2516713C2 (fr)
WO (1) WO2010142510A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2591881A1 (fr) * 2011-11-09 2013-05-15 Siemens Aktiengesellschaft Dispositif, procédé et vis en fonte pour l'échange sécurisé de plaques de bouclier thermique de turbines à gaz
DE102014204472A1 (de) * 2014-03-11 2015-09-17 Rolls-Royce Deutschland Ltd & Co Kg Brennkammerschindel einer Gasturbine
US10330318B2 (en) 2013-06-27 2019-06-25 Siemens Aktiengesellschaft Securing a heat shield block to a support structure, and heat shield
US10989412B2 (en) 2016-06-28 2021-04-27 Siemens Energy Global GmbH & Co. KG Heat shield assembly of a combustion chamber having a disk spring set

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2711634A1 (fr) * 2012-09-21 2014-03-26 Siemens Aktiengesellschaft Bouclier thermique avec une structure porteuse et procédé de refroidissement de la structure porteuse
EP2711630A1 (fr) * 2012-09-21 2014-03-26 Siemens Aktiengesellschaft Dispositif de refroidissement d'une structure porteuse d'un bouclier thermique et bouclier thermique
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
RU209216U1 (ru) * 2021-08-30 2022-02-07 Антон Владимирович Новиков Теплозащитный экран для камеры сгорания газовой турбины
RU209161U1 (ru) * 2021-12-01 2022-02-03 Антон Владимирович Новиков Теплозащитный экран для камеры сгорания газовой турбины
CN116291871B (zh) * 2023-05-16 2023-07-21 北京航空航天大学 加力燃烧室隔热屏与机匣之间的低约束高阻尼连接结构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989012789A1 (fr) * 1988-06-13 1989-12-28 Siemens Aktiengesellschaft Bouclier thermique n'exigeant que peu de fluide de refroidissement
EP0430022A2 (fr) * 1989-11-21 1991-06-05 Ford-Werke Aktiengesellschaft Fixation d'un élément pour carosseries d'automobile par un écrou en tôle et un boulon fileté
WO1992009850A1 (fr) * 1990-11-29 1992-06-11 Siemens Aktiengesellschaft Ecran thermique en ceramique monte sur une structure portante
EP1467151A1 (fr) * 2003-04-10 2004-10-13 Siemens Aktiengesellschaft Bouclier thermique
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
US20060176671A1 (en) * 2005-02-07 2006-08-10 Siemens Aktiengesellschaft Heat shield
EP1741981A1 (fr) * 2005-07-04 2007-01-10 Siemens Aktiengesellschaft Bouclier thermique en céramique et réacteur à gaz hautes températures recouvert d'un tel bouclier

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
RU993579C (ru) * 1981-06-19 1994-07-15 АМНТК "Союз" Радиальное уплотнение теплозащитных экранов поворотных секций сопла подъемно-маршевого двигателя
DE19623300A1 (de) * 1996-06-11 1997-12-18 Siemens Ag Hitzeschildanordnung, insbesondere für Strukturteile von Gasturbinenanlagen, mit geschichtetem Aufbau
EP1284390A1 (fr) * 2001-06-27 2003-02-19 Siemens Aktiengesellschaft Ensemble bouclier thermique pour un composant acheminant un gaz chaud, notamment pour des pièces de structure de turbines à gaz
US7146815B2 (en) * 2003-07-31 2006-12-12 United Technologies Corporation Combustor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989012789A1 (fr) * 1988-06-13 1989-12-28 Siemens Aktiengesellschaft Bouclier thermique n'exigeant que peu de fluide de refroidissement
EP0430022A2 (fr) * 1989-11-21 1991-06-05 Ford-Werke Aktiengesellschaft Fixation d'un élément pour carosseries d'automobile par un écrou en tôle et un boulon fileté
WO1992009850A1 (fr) * 1990-11-29 1992-06-11 Siemens Aktiengesellschaft Ecran thermique en ceramique monte sur une structure portante
EP1467151A1 (fr) * 2003-04-10 2004-10-13 Siemens Aktiengesellschaft Bouclier thermique
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
US20060176671A1 (en) * 2005-02-07 2006-08-10 Siemens Aktiengesellschaft Heat shield
EP1741981A1 (fr) * 2005-07-04 2007-01-10 Siemens Aktiengesellschaft Bouclier thermique en céramique et réacteur à gaz hautes températures recouvert d'un tel bouclier

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2591881A1 (fr) * 2011-11-09 2013-05-15 Siemens Aktiengesellschaft Dispositif, procédé et vis en fonte pour l'échange sécurisé de plaques de bouclier thermique de turbines à gaz
WO2013068147A1 (fr) * 2011-11-09 2013-05-16 Siemens Aktiengesellschaft Kit de fixation amovible d'un panneau de protection thermique d'une turbine à gaz sur un empilage de rondelles élastiques et de fixation de l'empilage de rondelles-ressorts ainsi que procédé de remplacement d'un panneau de protection thermique d'une turbine à gaz
US10330318B2 (en) 2013-06-27 2019-06-25 Siemens Aktiengesellschaft Securing a heat shield block to a support structure, and heat shield
DE102014204472A1 (de) * 2014-03-11 2015-09-17 Rolls-Royce Deutschland Ltd & Co Kg Brennkammerschindel einer Gasturbine
US10989412B2 (en) 2016-06-28 2021-04-27 Siemens Energy Global GmbH & Co. KG Heat shield assembly of a combustion chamber having a disk spring set

Also Published As

Publication number Publication date
EP2440851B1 (fr) 2014-11-26
CN102460022A (zh) 2012-05-16
RU2516713C2 (ru) 2014-05-20
ES2527174T3 (es) 2015-01-21
EP2261564A1 (fr) 2010-12-15
RU2011153264A (ru) 2013-07-20
EP2440851A1 (fr) 2012-04-18
CN102460022B (zh) 2015-05-06

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