EP2440851B1 - Heat shield element assembly with screw guiding means and method for installing same - Google Patents

Heat shield element assembly with screw guiding means and method for installing same Download PDF

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Publication number
EP2440851B1
EP2440851B1 EP10721767.1A EP10721767A EP2440851B1 EP 2440851 B1 EP2440851 B1 EP 2440851B1 EP 10721767 A EP10721767 A EP 10721767A EP 2440851 B1 EP2440851 B1 EP 2440851B1
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EP
European Patent Office
Prior art keywords
heat shield
shield element
screw
supporting structure
element arrangement
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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.)
Not-in-force
Application number
EP10721767.1A
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German (de)
French (fr)
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EP2440851A1 (en
Inventor
Andreas Böttcher
Andre Kluge
Marco Link
Wilhelm Scheidtmann
Gerhard Simon
Thomas-Dieter Tenrahm
Marc Tertilt
Sabine GRENDEL
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Siemens AG
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Siemens AG
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Publication of EP2440851A1 publication Critical patent/EP2440851A1/en
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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
    • 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 respective independent claims.
  • the heat shields of turbine engines such as gas turbines and turbine engines, such as those 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.
  • the shield must be composed of a plurality of individual ceramic heat shield elements spaced apart from one another with sufficient clearance. This gap provides the heat shield elements with sufficient space for thermal expansion.
  • a cooling fluid in the form of cooling air is blown through cooling channels 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 In order to perform the brackets as simple and as one piece, a construction is known in which these brackets on the one hand in the support structure in the circulating circular and parallel trained mounting grooves are engageable insertable, and on the other hand clamped with trained 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 for this purpose (see Figures 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.
  • EP 1 701 095 A1 and EP 0 558 540 B1 describe by way of example a heat shield as stated 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 plate spring packet, which compensates for the thermal expansion of the heat shield element 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 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 of the invention is also achieved by a method for mounting a heat shield element arrangement according to a previously described embodiment.
  • 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.
  • 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 17 and screw head 13 are inserted laterally.
  • a pressure distributor 14 or disc is arranged, which distributes the pressure over a larger area and thus protects the ceramic body of the heat shield element 3.
  • FIG. 2 is a perspective view of the in the FIG. 1 shown heat shield element 3 with a view of a side surface 9 in the region of one of the pockets 5 with lateral recess 6. Die FIG. 2 is to be considered that the edge 42 is a front edge.
  • a heat shield element 3 with all four attached fastening screws 15 and pressure manifolds 14 must now be mounted perpendicular to the support structure 30 in the prior art, and the four screw shafts 17 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 formed in the support structure channels 26 serve.
  • the fastening screw 15 is also screwed in a plate spring assembly 19 to allow thermal movement of the heat shield element.
  • the plate spring package 19 is installed in a package sleeve 20 which is closed by a fixing disc 22. This fixing disc 22 prevents falling out of the disc springs and the nut 21 when the fastening screw 15 is not yet used.
  • the 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 assembly 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.
  • the ffereneinfädelstoff 33 is a funnel-shaped ringeneinfädelstoff 33 arranged on the disc spring 19 serving as a screw means.
  • the ffereneinfädelstoff 33 has a preferably circumferentially formed inclined sliding surface 35, which tapers to the diameter of the screwing, here the through hole in the disc spring assembly 19.
  • 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 can 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 can 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. As a result, the screw threading means 33 does not project from the support structure 30 and thus does not interfere in the heat shield element assembly 1.
  • the Steinhalternut 40 can, as under FIG. 1 described, further used for introducing the cooling air, wherein the cooling air, the ffereneinfädffen 33 due to the distance to the walls of the Steinhalternut 40 can flow around sufficiently well.
  • a ventilation duct 25 can also be used for this purpose.

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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)
  • Exhaust Silencers (AREA)
  • Connection Of Plates (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Description

Die Erfindung betrifft eine Hitzeschildelementanordnung mit einem Hitzeschildelement, ein Schraubeneinfädelmittel, ein Verfahren zur Montage des Hitzeschildelementes in einer Hitzeschildelementanordnung und eine Verwendung der Hitzeschildelementanordnung mit den in den Oberbegriffen jeweiliger unabhängiger Ansprüche genannten Merkmalen.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 respective independent claims.

In vielen technischen Anwendungen werden leistungsfähige keramische Hitzeschilde verwendet, um Temperaturen zwischen 1000 und 1600 Grad Celsius zu widerstehen. Insbesondere die Hitzeschilde von Turbinenmaschinen wie Gasturbinen und Turbinentriebwerken, wie sie in stromerzeugenden Kraftwerken und in größeren Flugzeugen Verwendung finden, weisen entsprechend große durch Hitzeschilde abzuschirmende Flächen im Inneren der Brennkammern auf. Wegen der thermischen Ausdehnung und wegen großer Abmessungen muss der Schild aus einer Vielzahl einzelner aus Keramik hergestellter Hitzeschildelemente zusammengesetzt werden, die voneinander mit einem ausreichenden Spalt beabstandet sind. Dieser Spalt bietet den Hitzeschildelementen ausreichenden Raum für die thermische Ausdehnung. Da jedoch der Spalt auch einen direkten Kontakt der heißen Verbrennungsgase mit der den Hitzeschild tragenden Tragstruktur ermöglicht, wird als eine effektive Gegenmaßnahme durch die Spalte in Richtung der Brennkammer ein Kühlfluid in Form von Kühlluft über Kühlkanäle eingeblasen. Diese Kühlluft wird ferner dazu verwendet, gezielt die metallischen Halterungen anzublasen und somit zu kühlen, mit welchen die keramischen Hitzeschildelemente (CHS, Ceramic Heat Shields) an der Tragstruktur verklammert sind.In many technical applications, powerful ceramic heat shields are used to withstand temperatures between 1000 and 1600 degrees Celsius. In particular, the heat shields of turbine engines such as gas turbines and turbine engines, such as those 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 provides the heat shield elements with sufficient space for thermal expansion. However, since the gap also allows direct contact of the hot combustion gases with the supporting structure carrying the heat shield, a cooling fluid in the form of cooling air is blown through cooling channels 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.

Um die Halterungen möglichst einfach und einteilig auszuführen, ist eine Bauweise bekannt, bei der diese Halterungen einerseits in die in der Tragstruktur kreisumlaufend und parallel ausgebildete Montage-Nuten eingreifend einschiebbar sind, und andererseits mit ausgebildeten Greifabschnitten in die in seitlichen Kanten der keramischen Hitzeschildelemente ausgebildete Halternuten verklammert werden. Die Hitzeschildelemente werden nacheinander mit den Haltern in die Nuten der Tragstruktur eingeschoben, wobei die nachkommenden Elemente die vorher positionierten in ihren Positionen versperren. Auf diese Weise kann beispielsweise eine kreisumlaufende Reihe von Hitzeschildelementen in einer Brennkammer einer Gasturbine gebildet werden.In order to perform the brackets as simple and as one piece, a construction is known in which these brackets on the one hand in the support structure in the circulating circular and parallel trained mounting grooves are engageable insertable, and on the other hand clamped with trained 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. In this way, for example, a circular series of heat shield elements can be formed in a combustion chamber of a gas turbine.

Das letzte verbleibende Hitzeschildelement kann jedoch nicht mehr auf diese Weise montiert werden, weil die beiderseits vorhandenen benachbarten Hitzeschildelemente eine tangential gerichtete Montagebewegung blockieren. Oft wird ein derartiges letzes Hitzeschildelement als ein Attrappenplatte oder Attrappe bezeichnet. Folglich werden zum Anbringen des letzten Hitzeschildelementes Lösungen mit Verschraubungen angewendet, die eine Montage des Hitzeschildelementes in Richtung der Flächennormalen der Tragstruktur ermöglichen.However, 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. Often, such 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.

Eine bekannte Verschraubung benutzt hierzu vier Schrauben, die in die in seitlichen Kanten des Hitzeschildelementes hierfür ausgebildete Aussparungen eingreifen (siehe Figuren 1 und 2). Diese Lösung ist dadurch benachteiligt, dass die Montage ein Handhabungsproblem bedingt. Die Handhabung der vier Schrauben erzwingt beispielsweise die Verwendung von Fixiermitteln wie Verklebung oder Klebeband, die nicht zuverlässig sind, wodurch die Schrauben verloren gehen können und wegen hoher Beschädigungsgefahr einer Turbine unbedingt vor Inbetriebnahme gefunden werden müssen. Ferner ist die Über-Kopf-Montage ist schwierig, da die Schrauben durch die Fixierung per Klebeband verkippen können und somit nicht in die vorgesehenen Bohrungen eingeführt werden kann. Da es sich um das letzte Hitzeschild handelt, können die Schrauben nicht per Hand positioniert werden, sondern müssen per Inbus - ohne Sicht - in die Bohrungen eingefädelt werden.For this purpose, a known screw connection uses four screws which engage in recesses formed in lateral edges of the heat shield element for this purpose (see Figures 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. Furthermore, 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.

Es ist insbesondere schwierig, die Befestigungsschrauben in die entsprechenden Gewindebohrungen der Tragstruktur einzufädeln.In particular, it is difficult to thread the fastening screws into the corresponding threaded bores of the support structure.

EP 1 701 095 A1 und EP 0 558 540 B1 beschreiben beispielhaft einen wie oben genant ausgeführten Hitzeschild mit den geschilderten Vorteilen und Problemen. Die Hitzeschildelemente werden in der Fachwelt auch als Steine und die sie haltenden Halteelemente Steinhalter und die in den Seitenkanten der Hitzeschildelemente ausgesparte Nuten als Taschen bezeichnet. EP 1 701 095 A1 and EP 0 558 540 B1 describe by way of example a heat shield as stated 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.

Die vorliegende Erfindung macht es sich zur Aufgabe, die Montage eines Hitzeschildelementes, insbesondere eines Schlusssteines oder einer Attrappe, in Richtung der Flächennormalen der Tragstruktur eines aus einer Vielzahl von Hitzeschildelementen aufgebauten Hitzeschildes sicher und unkompliziert zu gestalten.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.

Zur Lösung dieser Aufgabe geht die Erfindung nach einem ersten Aspekt von einer Hitzeschildelementanordnung mit einem Hitzeschildelement, insbesondere mit einer Attrappe, für einen eine Vielzahl benachbart an einer Tragstruktur angeordneter Hitzeschildelemente aufweisenden Hitzeschild aus. Dabei ist das Hitzeschildelement, insbesondere die Attrappe, an der Tragstruktur mithilfe wenigstens einer Befestigungsschraube in einem in der Tragstruktur vorgesehenen Verschraubungsmittel, beispielsweise in Form wenigstens einer Gewindemutter, befestigt.To achieve this object, 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. In this case, 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.

Erfindungsgemäß ist es vorgesehen, dass das in der Tragstruktur vorgesehene Verschraubungsmittel mit einem trichterförmigen Schraubeneinfädelmittel ausgestattet ist, in welches die jeweilige Befestigungsschraube einführbar und durchsteckbar ist.According to the invention, it is provided that the fastening means provided in the support structure is equipped with a funnel-shaped Schraubeneinfädelmittel, in which the respective fastening screw can be inserted and pushed.

Von Vorteil ist es, wenn das Verschraubungsmittel wenigstens ein federndes Element aufweist, insbesondere ein Tellerfederpaket, das zum Ausgleich der thermischen Ausdehnung des Hitzeschildelementes dient. Vorzugsweise ist das trichterförmige Schraubeneinfädelmittel an einem Tellerfederpaket kraftschlüssig befestigt.It is advantageous if the screwing means has at least one resilient element, in particular a plate spring packet, which compensates for the thermal expansion of the heat shield element serves. Preferably, the funnel-shaped Schraubeneinfädelmittel is fixed to a disk spring packet non-positively.

In einer weiteren bevorzugten Ausgestaltung der vorliegenden Erfindung ist das trichterförmige Schraubeneinfädelmittel in einer Aussparung der Tragstruktur kraftschlüssig befestigt. Die Tragstruktur kann pro Hitzeschildelementreihe wenigstens eine Steinhalternut und insbesondere zwei Steinhalternuten aufweisen. Eine besonders vorteilhafte Ausgestaltung ergibt sich, wenn die Aussparung in der Tragstruktur mit der Steinhalternut identisch ist. In diesem Fall muss keine spezielle Aussparung vorgesehen werden, sodass Herstellkosten eingespart werden.In a further preferred embodiment of the present invention, the funnel-shaped Schraubeneinfädelmittel 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.

Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung ist die kraftschlüssige Verbindung des trichterförmigen Schraubeneinfädelmittels per Verschweißung oder Presssitz oder einstückig mit dem Verschraubungsmittel oder der Tragstruktur ausgeführt.According to a further preferred embodiment of the invention, the non-positive connection of the funnel-shaped Schraubeneinfädelmittels is carried out by welding or press fit or integral with the screw or the support structure.

Die Verschweißung ist ferner bevorzugt per Punktverschweißung, Nahtverschweißung, elektrisch, durch Gasflamme oder Reibung/Ultraschall ausgeführt.The welding is furthermore preferably carried out by spot welding, seam welding, electrical, by gas flame or friction / ultrasound.

Das Schraubeneinfädelmittel ist vorzugsweise durch wenigstens eine zur Längsachse der Befestigungsschraube geneigt angeordnete Gleitfläche gebildet, wobei die Gleitfläche sich zum Durchmesser des Verschraubungsmittels verjungt.The Schraubeneinfädelmittel 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.

Die erfindungsgemäße Aufgabe wird ferner mit einem Verfahren zur Montage einer Hitzeschildelementanordnung nach einer vorhergehend beschriebenen Ausgestaltung gelöst.The object of the invention is also achieved by a method for mounting a heat shield element arrangement according to a previously described embodiment.

Dies wird vorzugsweise dadurch erreicht, dass

  • das Hitzeschildelement, das insbesondere eine Attrappe sein kann, in einer senkrechten zur Tragstruktur Montagebewegung an seine zwischen benachbarten Hitzeschildelementen auf der Tragstruktur vorgesehene Position gebracht wird, und
  • die Befestigungsschrauben in jeweiliges trichterförmiges Schraubeneinfädelmittel eingefädelt und in das in der Tragstruktur vorgesehene Verschraubungsmittel eingeschraubt werden.
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 mounting movement to its intended between adjacent heat shield elements on the support structure position, and
  • the fastening screws are threaded into respective funnel-shaped Schraubeneinfädelmittel and screwed into the provided in the support structure screwing.

Gemäß einer weiteren bevorzugten Ausgestaltung des erfindungsgemäßen Montageverfahrens werden die Befestigungsschrauben vorher an dem Hitzeschildelement angebaut.According to a further preferred embodiment of the mounting method according to the invention, the fastening screws are previously attached to the heat shield element.

Bei Verwendung einer Hitzeschildelementanordnung mit federnden Steinhaltern werden diese federnden Steinhalter mit oder ohne Befestigungsschrauben vorher an dem Hitzeschildelement angebaut bzw. befestigt.When using a heat shield element arrangement with resilient stone holders, these resilient stone holders are previously attached or attached to the heat shield element with or without fastening screws.

Die erfindungsgemäße Aufgabe wird ferner auch durch eine Verwendung der Hitzeschildelementanordnung nach einer vorhergehend beschriebenen bevorzugten Ausgestaltung zum Ausbilden eines Hitzeschildes, insbesondere eines Schlusssteines oder einer Attrappe des Hitzeschildes, einer Brennkraftmaschine, insbesondere einer Turbine, gelöst.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.

Die Erfindung wird nachfolgend in Ausführungsbeispielen anhand der zugehörigen Zeichnungen erläutert. Es zeigen:

Figur 1
eine Teilquerschnittsansicht durch eine bekannte Hitzeschildelementanordnung,
Figur 2
eine perspektivische Teilansicht auf das bekannte Hitzeschildelement aus Fig.1, und
Figur 3
eine Querschnittsansicht einer erfindungsgemäßen Hitzeschildelementanordnung.
The invention will be explained below in embodiments with reference to the accompanying drawings. Show it:
FIG. 1
a partial cross-sectional view through a known heat shield element arrangement,
FIG. 2
a partial perspective view of the known heat shield element Fig.1 , and
FIG. 3
a cross-sectional view of a heat shield element assembly according to the invention.

Die Figur 1 zeigt eine Teilquerschnittsansicht durch eine bekannte Hitzeschildelementanordnung 1.The FIG. 1 shows a partial cross-sectional view through a known heat shield element assembly. 1

Bei der bekannten Hitzeschildelementanordnung 1 werden die Hitzeschildelemente 3 oder sogenannte Steine mithilfe von insgesamt vier Verschraubungen an der Tragstruktur 30 befestigt. Es handelt sich insbesondere um Schlusssteine oder Attrappen eines Hitzeelementschildes.In the 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. In particular, they are keystones or dummies of a heat element shield.

In den seitlichen Kanten des Hitzeschildelementes 3 sind Vertiefungen oder Taschen 5 mit seitlichen Aussparungen 6 gebildet, in welchen der Schraubenschaft 17 und Schraubenkopf 13 seitlich einlegbar sind. Unter dem Schraubenkopf 13 ist ein Druckverteiler 14 oder Scheibe angeordnet, die den Druck auf eine größere Fläche verteilt und so den keramischen Körper des Hitzeschildelementes 3 schont.In the lateral edges of the heat shield element 3 recesses or pockets 5 are formed with lateral recesses 6, in which the screw shaft 17 and screw head 13 are inserted laterally. Under the screw head 13, a pressure distributor 14 or disc is arranged, which distributes the pressure over a larger area and thus protects the ceramic body of the heat shield element 3.

Die Figur 2 ist eine perspektivische Ansicht des in der Figur 1 dargestellten Hitzeschildelementes 3 mit Sicht auf eine Seitenfläche 9 im Bereich einer der Taschen 5 mit seitlicher Aussparung 6. Die Figur 2 ist dabei so zu betrachten, dass die Kante 42 eine vordere Kante darstellt.The FIG. 2 is a perspective view of the in the FIG. 1 shown heat shield element 3 with a view of a side surface 9 in the region of one of the pockets 5 with lateral recess 6. Die FIG. 2 is to be considered that the edge 42 is a front edge.

Ein Hitzeschildelement 3 mit allen vier angebrachten Befestigungsschrauben 15 und Druckverteilern 14 muss nach Stand der Technik nun senkrecht auf die Tragstruktur 30 montiert werden, und die vier Schraubenschäfte 17 müssen in die vier entsprechend in der Tragstruktur 30 angeordnete Schraubenbohrungen eingefädelt werden. Weil die seitlich in die Taschen 5 eingelegten Schrauben leicht herausfallen können, werden sie mit einem Klebstoff oder Klebestreifen vorher in ihren Positionen fixiert. Beim Einfädeln jedoch geht diese Klebeverbindung leicht verloren und die Schrauben können entweder herausfallen oder verkantet werden und treffen deshalb nicht mehr in die Schraubenbohrungen der Tragstruktur 30.A heat shield element 3 with all four attached fastening screws 15 and pressure manifolds 14 must now be mounted perpendicular to the support structure 30 in the prior art, and the four screw shafts 17 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

Weil die Schrauben aus der Tragstruktur relativ hoch herausragen, werden sie durch zwischen den benachbarten Hitze schildelementen 3 vorhandene Spalte von den heißen Gasen angeströmt und erreichen hohe Temperaturen, wodurch eine Kühlung erforderlich wird. Die Kühlung ist beispielsweise als eine Belüftung über Kanäle und Belüftungsleitungen 25 ausgeführt. Als Kühlkanal kann die Montagenut oder Steinhalternut 40 der Tragstruktur 30 oder spezielle in der Tragstruktur gebildete Kanäle 26 dienen.Because the screws protrude from the support structure relatively high, they will pass through between the adjacent heat shield elements 3 existing column flowed by the hot gases and reach high temperatures, whereby cooling is required. The cooling is carried out, for example, as a ventilation via channels and ventilation lines 25. As a cooling channel, the mounting groove or Steinhalternut 40 of the support structure 30 or special formed in the support structure channels 26 serve.

Weil bei dieser Montageart die thermische Ausdehnung des keramischen Hitzeschildelementes 3 und der metallischen Befestigungsschraube 15 erheblich und unterschiedlich ist, ist die Befestigungsschraube 15 außerdem in einem Tellerfederpaket 19 verschraubt, um eine thermische Bewegung des Hitzeschildelementes zu ermöglichen. Das Tellerfederpaket 19 ist in einer Pakethülse 20 verbaut, die von einer Fixierscheibe 22 verschlossen ist. Diese Fixierscheibe 22 verhindert das Herausfallen der Tellerfedern und der Gewindemutter 21, wenn die Befestigungsschraube 15 noch nicht eingesetzt ist. Die Gewindemutter 21 ist außerdem in der Pakethülse 20 gegen eine Verdrehung gesichert, sodass die Befestigungsschraube 15 in sie eingeschraubt werden kann.Because in this type of mounting the thermal expansion of the ceramic heat shield element 3 and the metallic fastening screw 15 is considerable and different, the fastening screw 15 is also screwed in a plate spring assembly 19 to allow thermal movement of the heat shield element. The plate spring package 19 is installed in a package sleeve 20 which is closed by a fixing disc 22. This fixing disc 22 prevents falling out of the disc springs and the nut 21 when the fastening screw 15 is not yet used. The nut 21 is also secured in the package sleeve 20 against rotation, so that the fastening screw 15 can be screwed into it.

Das Einfädeln der Befestigungsschrauben 15 stellt ein Handhabungsproblem dar, wenn insbesondere vier Befestigungsschrauben 15 eingefädelt werden müssen.The threading of the fastening screws 15 represents a handling problem when in particular four fastening screws 15 have to be threaded.

Diese bekannte Anordnung ist somit konstruktionsbedingt schwierig in der Handhabung bei der Montage, sodass mitunter zwei Personen erforderlich sein können.This known arrangement is thus structurally difficult to handle during assembly, so sometimes two people may be required.

Figur 3 zeigt eine Teil-Querschnittsansicht einer erfindungsgemäßen Hitzeschildelementanordnung 1. FIG. 3 shows a partial cross-sectional view of a heat shield element assembly 1 according to the invention.

Das Hitzeschildelement 3 befindet sich unmittelbar davor, mit der seitlich in die Tasche 5 eingelegten Befestigungsschraube 15 und Druckverteiler 14 in seine Position auf der Tragstruktur 30 senkrecht abgesenkt zu werden.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.

ist an dem als Verschraubungsmittel dienenden Tellerfederpaket 19 ein trichterförmiges Schraubeneinfädelmittel 33 angeordnet. Das Schraubeneinfädelmittel 33 weist eine vorzugsweise umlaufend ausgebildete geneigte Gleitfläche 35 auf, die sich zum Durchmesser des Verschraubungsmittels , hier der Durchbohrung im Tellerfederpaket 19, verjüngt.is a funnel-shaped Schraubeneinfädelmittel 33 arranged on the disc spring 19 serving as a screw means. The Schraubeneinfädelmittel 33 has a preferably circumferentially formed inclined sliding surface 35, which tapers to the diameter of the screwing, here the through hole in the disc spring assembly 19.

Das Schraubeneinfädelmittel 33 ist hierbei vorzugsweise als metallischer Trichter ausgebildet und in einen in der Pakethülse 20 des Tellerfederpakets 19 ausgebildeten Passsitz eingesetzt. Die Fixierung des Schraubeneinfädelmittels 33 in dem Passsitz kann nach einer bekannten Befestigungsart ausgeführt werden, wie Punktschweißen, Nahtschweißen, Reibungsschweißen, Ultraschallschweißen, Presssitz usw. In einer anderen Ausgestaltung kann das Schraubeneinfädelmittel 33 auch einstückig mit der Pakethülse 20 ausgeführt werden. In einer noch weiter entwickelten Ausgestaltung kann das Schraubeneinfädelmittel 33 auch in der Tragstruktur 30 ausgeformt sein.The Schraubeneinfädelmittel 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 can be carried out in a known manner of fastening, such as spot welding, seam welding, friction welding, ultrasonic welding, interference fit, etc. In another embodiment, the screw threading means 33 can also be made integral with the package sleeve 20. In a further developed embodiment, the screw threading means 33 can also be formed in the support structure 30.

Das Schraubeneinfädelmittel 33 wird vorzugsweise in der Steinhalternut 40 oder einer anderen in der Tragstruktur 30 speziell ausgebildeten Aussparung angeordnet, die eine ausreichende Höhe h aufweist. Dadurch ragt das Schraubeneinfädelmittel 33 nicht von der Tragstruktur 30 hervor und stört folglich nicht in der Hitzeschildelementanordnung 1.The Schraubeneinfädelmittel 33 is preferably arranged in the Steinhalternut 40 or another in the support structure 30 specially formed recess having a sufficient height h. As a result, the screw threading means 33 does not project from the support structure 30 and thus does not interfere in the heat shield element assembly 1.

Das Ende der Befestigungsschraube 15 wird bei der Montage von dem breiteren Durchmesser des trichterförmigen Schraubeneinfädelmittels 33 erfasst und gleitet an der Gleitfläche 35 in die Durchbohrung des Verschraubungsmittels, d. h. in diesem Fall des Tellerfederpaketes 19.The end of the fastening screw 15 is detected during assembly by the wider diameter of the funnel-shaped Schraubeneinfädelmittels 33 and slides on the sliding surface 35 in the through hole of the screw means, d. H. in this case, the plate spring package 19th

Die Steinhalternut 40 kann, wie unter Figur 1 beschrieben, weiterhin zum Einleiten der Kühlluft verwendet werden, wobei die Kühlluft das Schraubeneinfädelmittel 33 aufgrund der Beabstandung zu den Wandungen der Steinhalternut 40 ausreichend gut umströmen kann. Eine Belüftungsleitung 25 kann hierzu ebenso verwendet werden.The Steinhalternut 40 can, as under FIG. 1 described, further used for introducing the cooling air, wherein the cooling air, the Schraubeneinfädmittel 33 due to the distance to the walls of the Steinhalternut 40 can flow around sufficiently well. A ventilation duct 25 can also be used for this purpose.

Claims (12)

  1. Heat shield element arrangement (1) having a heat shield element (3) for a heat shield having a multiplicity of heat shield elements arranged adjacent to one another on a supporting structure (30), wherein the heat shield element (3) is attached to the supporting structure (30) with the aid of at least one attachment screw (15) in a screw means provided in the supporting structure (30),
    characterized in that
    the screw means provided in the supporting structure (30) is equipped with a funnel-shaped screw guiding means (33) into which the respective attachment screw (15) can be inserted and pushed through.
  2. Heat shield element arrangement according to Claim 1,
    characterized in that
    the funnel-shaped screw guiding means (33) is secured in a non-positively locking manner to a Belleville washer stack (19).
  3. Heat shield element arrangement according to Claim 1,
    characterized in that
    the funnel-shaped screw guiding means (33) is secured in a non-positively locking manner in a cavity of the supporting structure (30).
  4. Heat shield element arrangement according to Claim 3,
    characterized in that
    the supporting structure (30) has at least one heat shield element holding slot (40) for each heat shield row and the cavity in the supporting structure (30) is identical to the heat shield element holding slot (40).
  5. Heat shield element arrangement according to Claim 2, 3 or 4,
    characterized in that
    the non-positively locking connection of the funnel-shaped screw guiding means (33) is effected by welding or press-fitting or integrally with the screw means or with the supporting structure (30).
  6. Heat shield element arrangement according to Claim 5,
    characterized in that
    the welding is effected by spot-welding, seam welding, electrically, by gas flame or friction/ultrasound.
  7. Heat shield element arrangement according to one of the preceding claims,
    characterized in that
    the screw means has a threaded nut (21).
  8. Heat shield element arrangement according to Claim 7,
    characterized in that
    the screw means has at least one resilient element, in particular a Belleville washer stack (19), which serves to equalize the thermal expansion of the heat shield element (3).
  9. Heat shield element arrangement according to one of the preceding Claims 1 to 8,
    characterized in that
    the screw guiding means (33) is formed by at least one sliding surface (35) arranged inclined with respect to the longitudinal axis of the attachment screw (15), wherein the sliding surface (35) narrows to the diameter of the screw means.
  10. Method for mounting a heat shield element arrangement (1) configured according to one of the preceding Claims 1 to 9,
    characterized in that
    - in a mounting movement perpendicular to the supporting structure (30), the heat shield element (3) is brought to its position provided between adjacent heat shield elements on the supporting structure, and
    - the attachment screws (15) are guided in respective funnel-shaped screw guiding means (33) and are screwed into the screw means provided in the supporting structure (30).
  11. Method according to Claim 10,
    characterized in that
    the attachment screws (15) have been previously installed on the heat shield element (3).
  12. Use of the heat shield element arrangement (1) according to one preceding claim for forming a heat shield, in particular a key brick or dummy brick of the heat shield, of a combustion engine, in particular of a turbine.
EP10721767.1A 2009-06-09 2010-05-14 Heat shield element assembly with screw guiding means and method for installing same Not-in-force EP2440851B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10721767.1A EP2440851B1 (en) 2009-06-09 2010-05-14 Heat shield element assembly with screw guiding means and method for installing same

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09162244A EP2261564A1 (en) 2009-06-09 2009-06-09 Heat shield element assembly with screw guiding means and method for installing same
PCT/EP2010/056649 WO2010142510A1 (en) 2009-06-09 2010-05-14 Heat shield element arrangement comprising screw threading means and method for installing a heat shield element
EP10721767.1A EP2440851B1 (en) 2009-06-09 2010-05-14 Heat shield element assembly with screw guiding means and method for installing same

Publications (2)

Publication Number Publication Date
EP2440851A1 EP2440851A1 (en) 2012-04-18
EP2440851B1 true EP2440851B1 (en) 2014-11-26

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EP10721767.1A Not-in-force EP2440851B1 (en) 2009-06-09 2010-05-14 Heat shield element assembly with screw guiding means and method for installing same

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EP (2) EP2261564A1 (en)
CN (1) CN102460022B (en)
ES (1) ES2527174T3 (en)
RU (1) RU2516713C2 (en)
WO (1) WO2010142510A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2591881A1 (en) * 2011-11-09 2013-05-15 Siemens Aktiengesellschaft Device, method and cast screw for safe exchange of heat shield panels of gas turbines
EP2711634A1 (en) * 2012-09-21 2014-03-26 Siemens Aktiengesellschaft Heat shield with a support structure and method for cooling the support structure
EP2711630A1 (en) * 2012-09-21 2014-03-26 Siemens Aktiengesellschaft Device for cooling a support structure of a heat shield and heat shield
DE102012022199A1 (en) 2012-11-13 2014-05-28 Rolls-Royce Deutschland Ltd & Co Kg Combustor shingle of a gas turbine
WO2014207207A1 (en) 2013-06-27 2014-12-31 Siemens Aktiengesellschaft Securing a heat shield block to a support structure, and heat shield
DE102014204472A1 (en) * 2014-03-11 2015-09-17 Rolls-Royce Deutschland Ltd & Co Kg Combustor shingle of a gas turbine
ITUB20155786A1 (en) * 2015-11-23 2017-05-23 Leonardo Mattoni FIXING DEVICE BETWEEN TWO PARTS WITH SPRING DRAFT
DE102016211613A1 (en) 2016-06-28 2017-12-28 Siemens Aktiengesellschaft Heat shield arrangement of a combustion chamber with disc spring package
RU209216U1 (en) * 2021-08-30 2022-02-07 Антон Владимирович Новиков HEAT SHIELD FOR GAS TURBINE COMBUSTION CHAMBER
RU209161U1 (en) * 2021-12-01 2022-02-03 Антон Владимирович Новиков HEAT SHIELD FOR GAS TURBINE COMBUSTION CHAMBER
CN116291871B (en) * 2023-05-16 2023-07-21 北京航空航天大学 Low-constraint high-damping connection structure between afterburner heat shield and casing

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU993579C (en) * 1981-06-19 1994-07-15 АМНТК "Союз" Radial sealing of heat-protecting screens of rotatable sections of nozzle of susteiner
WO1989012789A1 (en) * 1988-06-13 1989-12-28 Siemens Aktiengesellschaft Heat shield arrangement with low coolant fluid requirement
DE3938547A1 (en) * 1989-11-21 1991-05-23 Ford Werke Ag COMPONENT FASTENING IN MOTOR VEHICLE BODIES WITH A TIN NUT AND A BOLT
WO1992009850A1 (en) * 1990-11-29 1992-06-11 Siemens Aktiengesellschaft Ceramic heat shield on a bearing structure
DE19623300A1 (en) * 1996-06-11 1997-12-18 Siemens Ag Heat shield arrangement, in particular for structural parts of gas turbine plants, with a layered structure
EP1284390A1 (en) * 2001-06-27 2003-02-19 Siemens Aktiengesellschaft Thermal shield for a component carrying hot gases, especially for structural components of gas turbines
EP1467151A1 (en) * 2003-04-10 2004-10-13 Siemens Aktiengesellschaft Heat shield element
US7146815B2 (en) * 2003-07-31 2006-12-12 United Technologies Corporation Combustor
EP1533574A1 (en) * 2003-11-24 2005-05-25 Siemens Aktiengesellschaft Gas turbine combustion chamber with lining elements and method to apply or remove these elements
ES2378375T3 (en) 2005-02-07 2012-04-11 Siemens Aktiengesellschaft Thermal display
EP1741981A1 (en) * 2005-07-04 2007-01-10 Siemens Aktiengesellschaft Ceramic heatshield element and high temperature gas reactor lined with such a heatshield

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RU2516713C2 (en) 2014-05-20
ES2527174T3 (en) 2015-01-21
EP2440851A1 (en) 2012-04-18
CN102460022A (en) 2012-05-16
CN102460022B (en) 2015-05-06
WO2010142510A1 (en) 2010-12-16
RU2011153264A (en) 2013-07-20
EP2261564A1 (en) 2010-12-15

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