EP0419487B1 - Hitzeschildanordnung mit geringem kühlfluidbedarf - Google Patents

Hitzeschildanordnung mit geringem kühlfluidbedarf Download PDF

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Publication number
EP0419487B1
EP0419487B1 EP89903097A EP89903097A EP0419487B1 EP 0419487 B1 EP0419487 B1 EP 0419487B1 EP 89903097 A EP89903097 A EP 89903097A EP 89903097 A EP89903097 A EP 89903097A EP 0419487 B1 EP0419487 B1 EP 0419487B1
Authority
EP
European Patent Office
Prior art keywords
heat shield
arrangement according
shield arrangement
clamp
supporting structure
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.)
Expired - Lifetime
Application number
EP89903097A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0419487A1 (de
Inventor
Bernard Becker
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
Publication of EP0419487A1 publication Critical patent/EP0419487A1/de
Application granted granted Critical
Publication of EP0419487B1 publication Critical patent/EP0419487B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/22—Joints and connections with fluid pressure responsive component

Definitions

  • the present invention relates to a heat shield arrangement for a support structure of any shape which carries a hot fluid, according to the preamble of claim 1.
  • a metallic heat shield that is well suited for lining complexly shaped structures is described in EP-A-0 224 817.
  • a disadvantage of the arrangement described can be the need for cooling fluid, which in gas turbine systems, for example, may have to be covered at the expense of the air available for combustion.
  • a ceramic heat shield that needs to be cooled less is described in DE-A-36 25 056.
  • the arrangement is not as well suited for complex shaped structures; furthermore, the metallic fastening elements of the stones are directly exposed to the hot fluid, so that the basic advantage of the low cooling fluid requirement can be limited again.
  • GB-A-2075 659 proposes a heat shield arrangement made of ceramic stones which is intended for lining simple structures and the stones on their sides facing away from the hot fluid have straight strips running over their entire width, to which they are attached to a supporting structure will. On such stones, however, considerable thermal stresses arise under thermal stress, since the thermal expansion of the areas of a stone facing the hot fluid is considerably impeded by the bar, which remains cool.
  • the object of the present invention is to provide a ceramic heat shield arrangement which is suitable for lining complicatedly shaped structures, has no metallic elements exposed to the hot fluid and whose ceramic elements are designed in such a way that the occurrence of mechanical stresses under thermal stress is largely avoided.
  • the hat part which is directly exposed to the hot fluid can expand and deform freely away from the shaft part, without causing significant thermal stresses.
  • the metallic clamp which surrounds the shaft part of the heat shield element and serves to anchor it to the support structure, is shielded from the hot fluid by the hat part, so that its thermal load is significantly lower than that of the ceramic.
  • a fluid that is conveyed through channels in the support structure into the space between it and the heat shield is therefore primarily used not for cooling but for blocking purposes; it should prevent z.
  • B. hot fluid enters the gap through the expansion gaps between the ceramic elements and damages the supporting structure or clamps.
  • An essential component of the clip is a resilient element between the part that surrounds the heat shield and the part that is firmly connected to the supporting structure.
  • the heat shield elements are additionally supported in order to fix the position of the heat shield elements and to determine the height of the space between the support structure and the heat shield arrangement.
  • This support can take place both on the hat parts and on the shaft parts; corresponding supports can advantageously be either fixed to the heat shield elements or fixed to the support structure.
  • the heat shield elements can also be supported with the brackets, in that the shapes of the brackets engage in the indentations of the shaft parts and attach to the hat part or form supports for the hat parts. In this way, particularly simple shapes are created both for the supporting structure and for the heat shield elements, since there is no longer any need to provide any formations serving as supports.
  • each heat shield element in the longitudinal direction of the shaft part has a through hole through the hat and shaft part
  • the z. B. can serve to achieve a fastener with which the clip is attached to the support structure. It makes sense to fix the heat shield element holding bracket with a screw on the support structure, the head of the screw in the extension of the through hat and shaft part through which he z. B. can be achieved with a screwdriver. A simple assembly of the heat shield arrangement from the interior of the structure to be lined is thus possible.
  • the shaft part of each heat shield element has a trapezoidal cross section in at least one plane, possibly with rounded corners, with the wider side of the trapezoid on the hat part opposite end of the shaft part.
  • a shaft part is particularly suitable for the type of fastening according to the invention with a clip which engages around the shaft part.
  • the shaft parts of the heat shield elements are also favorable to give the shaft parts of the heat shield elements at least approximately the shape of rotating bodies. In this way, the heat shield elements can be rotated in their fastenings, which considerably simplifies the alignment of the elements during assembly.
  • a particularly advantageous form of the clip is the shape of a bulbous barrel and / or a convex, double truncated double cone, each with slotted walls. These shapes best ensure the resilient fit of the heat shield element; the area with the largest diameter serves as a resilient element of this clamp.
  • Each clamp may also consist of two or more individual parts, which in turn can be bent together from flat sheet metal parts.
  • each clamp be secured with at least one anti-rotation device, e.g. B. a small screw or dowel.
  • FIG. 1 shows an embodiment of the heat shield element 1, anchored to a support structure 3 by means of a clip 6. Between the hat parts 1.1 and two heat shield elements 1 there are expansion gaps 2 in order to enable thermal deformations of the hat parts 1.1. The penetration of hot fluid from the hot gas space 5 through expansion gaps 2 and possibly existing bores 1.3 in the heat shield elements 1 into the space 4 between the heat shield and the support structure 3 can be prevented by supplying barrier fluid through the channels 3.3.
  • the clamp 6 is fastened to the supporting structure 3 by means of a screw 7 and secured by an anti-rotation device 8.
  • the screw 7 is shown partially loosened. If necessary, a washer 10 can also be inserted between screw 7 and clamp 6 as an anti-rotation device.
  • Figure 1 shows two exemplary embodiments: the heat shield elements are supported on the hat parts 1.1; the supports 3.1 and 1.1.1 are either connected to the support structure 3 or to a hat part 1.1.
  • FIG. 2 A further design option for the supports is shown in FIG. 2.
  • the supports 6.5 are integrated in the bracket 6 and consist of supporting kinks 6.5.1 which engage in indentations 1.2.3 at the transition from the shaft part to the hat part of the heat shield element 1 and supporting surfaces 6.5.2 on which the hat part rests.
  • Bracket 6 The essential parts of the bracket 6 are, as shown in Figure 2 of a special embodiment shows at least one holding element which surrounds the flank 1.2.2 of the shaft part and is provided by a conical flank 6.4 of the clamp 6, and at least one spring element, shown in FIG. 2 by the kink 6.3.
  • the exact design of that part of the clip that is attached to the heat shield is of minor importance for the invention.
  • the clamp 6, as shown in FIG. 4, is bent from a sheet metal part 9.
  • Figure 3 shows the curved bracket 6, without the heat shield element 1, seen from the hot gas side 5.
  • a widened slot 6.8 serves to accommodate the anti-rotation device 8. If the clip 6 is to be formed before the final assembly of the heat shield element 1, the molded part 9 can be divided, as indicated, for example, by the dividing line 9.1.
  • the clamp 6 is preferably with an Allen screw 7, possibly with the addition of an anti-rotation device 8 (screw, dowel pin or the like), in a depression 3.2 of the support structure 3 or its own mount 3.4 placed on the support structure 3, both with sloping walls 3.2.1 and 3.4.1, respectively.
  • the bottom 3.2.2, 3.4.2 of the countersink 3.2 or version 3.4 should have a slightly larger diameter than the bottom part 6.1 of the bracket 6, in order to ensure that the bracket 6 can be drawn into the bottom 3.2.2, 3.4.2.
  • it In order to be able to reach the screw head 7.1 during the assembly of the heat shield element 1, it has a corresponding bore 1.3.
  • the tensile force with which the heat shield element 1 is held on its supports 1.1.1, 3.1 or 6.5.2 is limited when the tension in the resilient kink 6.3 of the clamp 6 reaches the plasticity limit; the thickness of the clamp-shaped part 9 is therefore to be chosen in accordance with the material properties so that the maximum tensile force remains limited to a size that is safe with regard to the risk of breakage of the ceramic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Plates (AREA)
  • Exhaust Silencers (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP89903097A 1988-06-13 1989-03-10 Hitzeschildanordnung mit geringem kühlfluidbedarf Expired - Lifetime EP0419487B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3820104 1988-06-13
DE3820104 1988-06-13
PCT/DE1989/000125 WO1989012789A1 (fr) 1988-06-13 1989-03-10 Bouclier thermique n'exigeant que peu de fluide de refroidissement

Publications (2)

Publication Number Publication Date
EP0419487A1 EP0419487A1 (de) 1991-04-03
EP0419487B1 true EP0419487B1 (de) 1994-11-23

Family

ID=6356459

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89903097A Expired - Lifetime EP0419487B1 (de) 1988-06-13 1989-03-10 Hitzeschildanordnung mit geringem kühlfluidbedarf

Country Status (6)

Country Link
US (1) US5083424A (enrdf_load_stackoverflow)
EP (1) EP0419487B1 (enrdf_load_stackoverflow)
JP (1) JPH03504999A (enrdf_load_stackoverflow)
DE (1) DE58908665D1 (enrdf_load_stackoverflow)
IN (1) IN171210B (enrdf_load_stackoverflow)
WO (1) WO1989012789A1 (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1126221A1 (de) 2000-02-17 2001-08-22 Siemens Aktiengesellschaft Gepolsterter Hitzeschildstein zur Auskleidung einer Gasturbinenbrennkammerwand
WO2002025173A1 (de) 2000-09-22 2002-03-28 Siemens Aktiengesellschaft Hitzeschildstein, brennkammer mit einer inneren brennkammerauskleidung sowie gasturbine
DE10046094A1 (de) * 2000-09-18 2002-05-02 Siemens Ag Hitzeschildstein zur Auskleidung einer Brennkammerwand, Brennkammer sowie Gasturbine
EP1715250A1 (de) * 2005-04-19 2006-10-25 Siemens Aktiengesellschaft Hitzeschildelement zur Auskleidung einer Brennkammerwand, Brennkammer sowie Gasturbine
EP1715249A1 (de) * 2005-04-19 2006-10-25 Siemens Aktiengesellschaft Hitzeschildelement und Brennkammer mit einem Hitzeschild
US7540710B2 (en) 2003-10-27 2009-06-02 Siemens Aktiengesellschaft Turbine blade for use in a gas turbine
US7942007B2 (en) 2005-04-19 2011-05-17 Siemens Aktiengesellschaft Heat shield element for lining a combustion chamber wall, combustion chamber and gas turbine

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EP0539359B1 (de) * 1990-07-17 1994-04-20 Siemens Aktiengesellschaft Rohrstück, insbesondere Flammrohr, mit gekühltem Stützrahmen für eine hitzefeste Auskleidung
US5431020A (en) * 1990-11-29 1995-07-11 Siemens Aktiengesellschaft Ceramic heat shield on a load-bearing structure
US5265409A (en) * 1992-12-18 1993-11-30 United Technologies Corporation Uniform cooling film replenishment thermal liner assembly
US5495377A (en) * 1993-05-27 1996-02-27 Seagate Technology, Inc. Apparatus for attaching a printed circuit cable to an actuator arm in a disc drive assembly utilizing alignment pins
DE4343120A1 (de) * 1993-12-17 1995-06-22 Abb Patent Gmbh Thermische Isolation
DE4429104A1 (de) * 1994-08-17 1996-02-22 Pirchl Gerhard Verfahren zur Herstellung eines Hitzeschildes und Hitzeschild, welches nach dem Verfahren hergestellt ist
US5497616A (en) * 1994-11-16 1996-03-12 Rolls-Royce Inc. High temperature mounting for stress relief of a dovetail
US5704208A (en) * 1995-12-05 1998-01-06 Brewer; Keith S. Serviceable liner for gas turbine engine
DE19623300A1 (de) * 1996-06-11 1997-12-18 Siemens Ag Hitzeschildanordnung, insbesondere für Strukturteile von Gasturbinenanlagen, mit geschichtetem Aufbau
EP0895028B1 (de) * 1997-07-28 2002-03-06 Alstom Keramische Auskleidung
DE29714742U1 (de) * 1997-08-18 1998-12-17 Siemens AG, 80333 München Hitzeschildkomponente mit Kühlfluidrückführung und Hitzeschildanordnung für eine heißgasführende Komponente
US6397765B1 (en) * 1998-03-19 2002-06-04 Siemens Aktiengesellschaft Wall segment for a combustion chamber and a combustion chamber
US6267066B1 (en) * 2000-03-15 2001-07-31 Saint-Gobain Industrial Ceramics Refractory tile system for boiler tube/heat exchanger
DE19936761A1 (de) 1999-08-09 2001-05-10 Abb Alstom Power Ch Ag Befestigungsvorrichtung für Hitzeschutzschilde
US6155780A (en) * 1999-08-13 2000-12-05 Capstone Turbine Corporation Ceramic radial flow turbine heat shield with turbine tip seal
US6279313B1 (en) * 1999-12-14 2001-08-28 General Electric Company Combustion liner for gas turbine having liner stops
DE10005426C2 (de) * 2000-02-08 2001-11-15 Didier Werke Ag Feuerfeste keramische Platte und zugehöriger Wandaufbau für einen Verbrennunsofen
EP1128131A1 (de) 2000-02-23 2001-08-29 Siemens Aktiengesellschaft Hitzeschildelement, Brennkammer und Gasturbine
EP1288601B1 (de) * 2001-08-28 2006-10-25 Siemens Aktiengesellschaft Hitzeschildstein sowie Verwendung eines Hitzeschildsteins in einer Brennkammer
DE10155420A1 (de) 2001-11-12 2003-05-22 Rolls Royce Deutschland Hitzeschildanordnung mit Dichtungselement
DE50212581D1 (de) * 2002-12-10 2008-09-11 Siemens Ag Gasturbine
ES2378375T3 (es) * 2005-02-07 2012-04-11 Siemens Aktiengesellschaft Pantalla térmica
US7647779B2 (en) * 2005-04-27 2010-01-19 United Technologies Corporation Compliant metal support for ceramic combustor liner in a gas turbine engine
EP1741981A1 (de) * 2005-07-04 2007-01-10 Siemens Aktiengesellschaft Keramisches Hitzeschildelement sowie damit ausgekleideter Hochtemperaturgasreaktor
GB2432902B (en) * 2005-12-03 2011-01-12 Alstom Technology Ltd Gas turbine sub-assemblies
US7721522B2 (en) * 2006-01-05 2010-05-25 United Technologies Corporation Torque load transfer attachment hardware
EP2049840B1 (de) 2006-08-07 2018-04-11 Ansaldo Energia IP UK Limited Brennkammer einer verbrennungsanlage
EP2049841B1 (de) * 2006-08-07 2016-12-28 General Electric Technology GmbH Brennkammer einer verbrennungsanlage
DE102007062699A1 (de) * 2007-12-27 2009-07-02 Rolls-Royce Deutschland Ltd & Co Kg Brennkammerauskleidung
DE102008006894A1 (de) * 2008-01-31 2009-08-06 Karrena Gmbh Auskleidung eines Feuerungsraums
US8973375B2 (en) * 2008-12-31 2015-03-10 Rolls-Royce North American Technologies, Inc. Shielding for a gas turbine engine component
EP2236928A1 (de) * 2009-03-17 2010-10-06 Siemens Aktiengesellschaft Hitzeschildelement eines Hitzeschildes
NL1036914C2 (nl) * 2009-04-29 2010-11-01 Wouter Garot Verankeringsorgaan.
EP2261564A1 (de) * 2009-06-09 2010-12-15 Siemens Aktiengesellschaft Hitzeschildelementanordnung mit Schraubeneinfädelmittel und Verfahren zur Montage eines Hitzeschildelementes
ES2531099T3 (es) * 2009-06-09 2015-03-10 Siemens Ag Disposición de elemento de escudo térmico y procedimiento para el montaje de un elemento de escudo térmico
CH703656A1 (de) 2010-08-27 2012-02-29 Alstom Technology Ltd Von Heissgasen durchströmbarer Gehäusekörper mit innerem Hitzeschild.
US9803868B2 (en) * 2011-05-20 2017-10-31 Siemens Energy, Inc. Thermally compliant support for a combustion system
EP2711633A1 (de) * 2012-09-21 2014-03-26 Siemens Aktiengesellschaft Halteelement zum Halten eines Hitzeschildsteines und Verfahren zum Kühlen der Tragstruktur eines Hitzeschildes
EP2711630A1 (de) * 2012-09-21 2014-03-26 Siemens Aktiengesellschaft Vorrichtung zum Kühlen einer Tragstruktur eines Hitzeschildes und Hitzeschild
EP2711634A1 (de) * 2012-09-21 2014-03-26 Siemens Aktiengesellschaft Hitzeschild mit einer Tragstruktur und Verfahren zum Kühlen der Tragstruktur
US9243515B2 (en) * 2012-09-28 2016-01-26 United Technologies Corporation Support hanger for flexibly connecting a plurality of panels
US9249732B2 (en) * 2012-09-28 2016-02-02 United Technologies Corporation Panel support hanger for a turbine engine
US11852338B2 (en) * 2020-05-07 2023-12-26 Zampell Refractories, Inc. Tile assembly for a waterwall panel
US11512611B2 (en) * 2021-02-09 2022-11-29 General Electric Company Stator apparatus for a gas turbine engine

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1126221A1 (de) 2000-02-17 2001-08-22 Siemens Aktiengesellschaft Gepolsterter Hitzeschildstein zur Auskleidung einer Gasturbinenbrennkammerwand
DE10046094A1 (de) * 2000-09-18 2002-05-02 Siemens Ag Hitzeschildstein zur Auskleidung einer Brennkammerwand, Brennkammer sowie Gasturbine
DE10046094C2 (de) * 2000-09-18 2002-09-19 Siemens Ag Hitzeschildstein zur Auskleidung einer Brennkammerwand
WO2002025173A1 (de) 2000-09-22 2002-03-28 Siemens Aktiengesellschaft Hitzeschildstein, brennkammer mit einer inneren brennkammerauskleidung sowie gasturbine
US7540710B2 (en) 2003-10-27 2009-06-02 Siemens Aktiengesellschaft Turbine blade for use in a gas turbine
US7805945B2 (en) 2003-10-27 2010-10-05 Siemens Aktiengesellschaft Thermal shield, especially for lining the wall of a combustion chamber
US8857190B2 (en) 2003-10-27 2014-10-14 Siemens Aktiengesellschaft Heat shield element, in particular for lining a combustion chamber wall
EP1715250A1 (de) * 2005-04-19 2006-10-25 Siemens Aktiengesellschaft Hitzeschildelement zur Auskleidung einer Brennkammerwand, Brennkammer sowie Gasturbine
EP1715249A1 (de) * 2005-04-19 2006-10-25 Siemens Aktiengesellschaft Hitzeschildelement und Brennkammer mit einem Hitzeschild
US7942007B2 (en) 2005-04-19 2011-05-17 Siemens Aktiengesellschaft Heat shield element for lining a combustion chamber wall, combustion chamber and gas turbine

Also Published As

Publication number Publication date
US5083424A (en) 1992-01-28
IN171210B (enrdf_load_stackoverflow) 1992-08-15
DE58908665D1 (de) 1995-01-05
EP0419487A1 (de) 1991-04-03
WO1989012789A1 (fr) 1989-12-28
JPH03504999A (ja) 1991-10-31

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