EP2851515A1 - Assembly for attaching a turbine blade - Google Patents

Assembly for attaching a turbine blade Download PDF

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Publication number
EP2851515A1
EP2851515A1 EP13185739.3A EP13185739A EP2851515A1 EP 2851515 A1 EP2851515 A1 EP 2851515A1 EP 13185739 A EP13185739 A EP 13185739A EP 2851515 A1 EP2851515 A1 EP 2851515A1
Authority
EP
European Patent Office
Prior art keywords
turbine
turbine blade
blade root
stemmstück
groove
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.)
Withdrawn
Application number
EP13185739.3A
Other languages
German (de)
French (fr)
Inventor
Stefan Bentele
Ulrich Beul
Frank Brumbi
Oliver Ceranski
Manuel Ettler
Thomas Helmis
Markus Hofmann
Daniel Lindemann
Adam Maguire
Oliver Dr. Ricken
Andreas Stiehm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP13185739.3A priority Critical patent/EP2851515A1/en
Priority to US14/915,686 priority patent/US20160194970A1/en
Priority to PCT/EP2014/068354 priority patent/WO2015043874A1/en
Priority to EP14759132.5A priority patent/EP3025029A1/en
Publication of EP2851515A1 publication Critical patent/EP2851515A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/246—Fastening of diaphragms or stator-rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3092—Protective layers between blade root and rotor disc surfaces, e.g. anti-friction layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
    • F01D9/044—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators permanently, e.g. by welding, brazing, casting or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/31—Application in turbines in steam turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/12—Fluid guiding means, e.g. vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/50—Intrinsic material properties or characteristics
    • F05D2300/502—Thermal properties
    • F05D2300/5021—Expansivity
    • F05D2300/50212—Expansivity dissimilar

Definitions

  • the invention relates to an arrangement for mounting turbine blades, wherein the turbine blades have a turbine blade root which is fitted in a groove in a component, wherein between the turbine blade root and the component a Stemm forum is arranged.
  • Steam turbines as an embodiment of a turbomachine comprise comparatively many turbine blades, which are subdivided into moving blades and guide vanes. Blades are placed on the rotor and vanes in the housing. The vanes have a blade root, which is installed in a corresponding groove in the housing. The installation is usually done by hand, which means that an employee manually inserts the individual steam turbine vanes into the appropriate grooves with a suitable force. In addition, a caulking piece is caulked between the blade root and the groove to exert a force for fixation. Some vanes have shrouds that are twisted relative to the foot.
  • the Stemm consultancy is usually driven with hammer blows, which means a high expenditure of force and is associated with rapid fatigue of the employee concerned.
  • the invention seeks to remedy this situation.
  • the object of the invention is to provide an arrangement for which less effort has to be expended.
  • the invention proposes to carry out the Stemm thoroughlye for fixing the turbine blade of a bi-metal.
  • the Stemm thoroughlye should be designed straight at installation temperature and have a small oversize between 0.1mm and 0.2mm.
  • the turbine blades can be inserted in this case with little effort on the Stemm conductede.
  • the small excess is sufficient to bias the blade or jam and thus fix in its final position.
  • the temperature is necessarily increased in operation, resulting in a bending of the bi-metal in the direction of the turbine blade root. This means that a force is exerted by the bi-metal on the turbine blade root and the groove, resulting in a fixation.
  • FIG. 1 shows an arrangement for mounting turbine blades 2 in a groove 3 of a component 4.
  • the turbine blade 2 has a turbine blade root 5, which is fitted into the corresponding groove 3.
  • a Stemm merging 6 is arranged, wherein the Stemm facilitator 6 is a bi-metal.
  • the turbine blade 2 is designed as a turbine guide vane for a steam turbine. Likewise, the turbine blade 2 could be formed as a compressor blade for a gas turbine or a compressor.
  • the component 4 is formed as a housing, in particular inner casing of a steam turbine.
  • the FIG. 2 shows the Stemmmaschine 6 at installation temperature.
  • the Stemmmaschine 6 comprises a first material 7 and a second material 8, which is connected by rigid end connections 9 firmly together.
  • the first material 7 has a different thermal expansion behavior compared to the second material 8.
  • the geometric shape of the Stemm couples 6 is changed with an increase in the temperature, which in the FIG. 3 is shown.
  • the Stemm assert 6 shows a deflection in one direction. Since the Stemm poll 6 is arranged at installation temperature in a gap 10 between the turbine blade root 5 and the groove 3, carried by a temperature increase during operation, an increase in power between the turbine blade root 5 and the groove 3, resulting in a better fixation of the turbine blade 2.
  • Turbine vane shown has a trained as a hook foot turbine blade root 5. This has a pointing to a guide blade carrier 11 surface 12. In the guide blade carrier 11, a gap 13 is formed, in which the Stemm forum 6 is arranged.
  • the turbine blade root 5 has a substantially laterally arranged side surface 14, which is aligned substantially perpendicular to the surface 12.
  • the Stemm forum 6 is arranged in a laterally arranged gap 13, which leads to an additional fixation.
  • FIG. 5 shows a formed as a hammer foot turbine blade root 5.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Die Erfindung betrifft eine Anordnung zur Befestigung von Turbinenschaufeln (2) in einer Nut (3) eines Innengehäuses einer Dampfturbine, wobei zwischen dem Turbinenschaufelfuß (5) und der Nut (3) ein Stemmstück (6) aus Bi-Metall verwendet wird.The invention relates to an arrangement for fastening turbine blades (2) in a groove (3) of an inner casing of a steam turbine, wherein between the turbine blade root (5) and the groove (3) a Bi-metal caulking piece (6) is used.

Description

Die Erfindung betrifft eine Anordnung zur Befestigung von Turbinenschaufeln, wobei die Turbinenschaufeln einen Turbinenschaufelfuß aufweisen, der in eine Nut in einer Komponente eingepasst ist, wobei zwischen dem Turbinenschaufelfuß und der Komponente ein Stemmstück angeordnet ist.The invention relates to an arrangement for mounting turbine blades, wherein the turbine blades have a turbine blade root which is fitted in a groove in a component, wherein between the turbine blade root and the component a Stemmstück is arranged.

Dampfturbinen als Ausführungsform einer Strömungsmaschine umfassen vergleichsweise viele Turbinenschaufeln, die in Laufschaufeln und Leitschaufeln unterteilt werden. Laufschaufeln werden auf dem Rotor und Leitschaufeln im Gehäuse angeordnet. Die Leitschaufeln weisen einen Schaufelfuß auf, der in eine entsprechende Nut im Gehäuse eingebaut wird. Der Einbau erfolgt in der Regel von Hand, das bedeutet, dass ein Mitarbeiter per Hand die einzelnen Dampfturbinen-Leitschaufeln in die entsprechenden Nuten mit einer passenden Kraft einbringt. Zusätzlich wird ein Stemmstück zwischen dem Schaufelfuß und der Nut eingestemmt, um eine Kraft zur Fixierung auszuüben. Einige Leitschaufeln weisen Deckbänder auf, die gegenüber dem Fuß verdreht sind.Steam turbines as an embodiment of a turbomachine comprise comparatively many turbine blades, which are subdivided into moving blades and guide vanes. Blades are placed on the rotor and vanes in the housing. The vanes have a blade root, which is installed in a corresponding groove in the housing. The installation is usually done by hand, which means that an employee manually inserts the individual steam turbine vanes into the appropriate grooves with a suitable force. In addition, a caulking piece is caulked between the blade root and the groove to exert a force for fixation. Some vanes have shrouds that are twisted relative to the foot.

Das Stemmstück wird in der Regel mit Hammerschlägen getrieben, was einen hohen Kraftaufwand bedeutet und verbunden ist mit einer schnellen Ermüdung des betroffenen Mitarbeiters.The Stemmstück is usually driven with hammer blows, which means a high expenditure of force and is associated with rapid fatigue of the employee concerned.

Die Erfindung möchte hier Abhilfe schaffen. Aufgabe der Erfindung ist es, eine Anordnung anzugeben, für die weniger Kraftaufwand aufgewendet werden muss.The invention seeks to remedy this situation. The object of the invention is to provide an arrangement for which less effort has to be expended.

Gelöst wird diese Aufgabe durch eine Anordnung zur Befestigung von Turbinenschaufeln, wobei die Turbinenschaufeln einen Turbinenschaufelfuß aufweisen, der in eine Nut in einer Komponente eingepasst ist, wobei zwischen dem Turbinenschaufelfuß und der Komponente ein Stemmstück angeordnet ist, wobei das Stemmstück ein Bi-Metall ist.This object is achieved by an arrangement for fastening turbine blades, wherein the turbine blades have a turbine blade root, which is fitted in a groove in a component, wherein between the turbine blade root and the component is a Stemmstück, wherein the Stemmstück is a bi-metal.

Somit wird erfindungsgemäß vorgeschlagen die Stemmstücke zur Fixierung der Turbinenschaufel aus einem Bi-Metall auszuführen. Die Stemmstücke sollten bei Einbautemperatur geradlinig ausgeführt sein und ein geringes Übermaß zwischen 0,1mm und 0,2mm aufweisen. Die Turbinenschaufeln lassen sich in diesem Fall mit geringem Kraftaufwand über die Stemmstücke einschieben. Das geringe Übermaß reicht aus, um die Schaufel vorzuspannen bzw. zu verklemmen und somit in ihrer finalen Position zu fixieren. Erfindungsgemäß wird im Betrieb die Temperatur zwingend erhöht, was zu einer Verbiegung des Bi-Metalls in Richtung des Turbinenschaufelfußes führt. Das bedeutet, dass eine Kraft von dem Bi-Metall auf den Turbinenschaufelfuß und die Nut ausgeübt wird, was zu einer Fixierung führt.Thus, the invention proposes to carry out the Stemmstücke for fixing the turbine blade of a bi-metal. The Stemmstücke should be designed straight at installation temperature and have a small oversize between 0.1mm and 0.2mm. The turbine blades can be inserted in this case with little effort on the Stemmstücke. The small excess is sufficient to bias the blade or jam and thus fix in its final position. According to the invention, the temperature is necessarily increased in operation, resulting in a bending of the bi-metal in the direction of the turbine blade root. This means that a force is exerted by the bi-metal on the turbine blade root and the groove, resulting in a fixation.

Daher müssen keine konstruktiven Änderungen vorgenommen werden. Bisher verwendete Stemmstücke können durch Stemmstücke aus Bi-Metall ersetzt werden. Die körperliche Anstrengung für die Mitarbeiter wäre reduziert, was auch zu einer Reduzierung der Unfallgefahr führen würde. Insgesamt ist der Kraftaufwand für das Schieben der Turbinenschaufel über das Stemmstück somit reduziert.Therefore, no structural changes must be made. Previously used Stemmstücke can be replaced by caulking pieces made of bi-metal. The physical effort for the employees would be reduced, which would also lead to a reduction in the risk of accidents. Overall, the force required for pushing the turbine blade over the Stemmstück is thus reduced.

Des Weiteren werden durch den erleichterten Einbau Kosten reduziert, da in gleicher Zeit mehr Turbinenschaufeln eingebaut werden können.Furthermore, the simplified installation reduces costs because more turbine blades can be installed in the same time.

Die Erfindung wird anhand eines Ausführungsbeispiels nun näher erläutert.The invention will now be explained in more detail with reference to an embodiment.

Die Figuren zeigen in schematischer Weise ein Ausführungsbeispiel der Erfindung.The figures show schematically an embodiment of the invention.

Es zeigen:

Figur 1
eine schematische Darstellung eines Turbinen-schaufelfußes in einer Komponente,
Figur 2
ein Bi-Metallstemmstück bei Einbautemperatur,
Figur 3
ein Bi-Metallstemmstück bei Betriebstemperatur,
Figur 4
eine schematische Darstellung eines Turbinenleit-schaufelfußes und
Figur 5
eine schematische Darstellung eines Turbinenleit-schaufelfußes mit Hammerfußform.
Show it:
FIG. 1
a schematic representation of a turbine blade root in a component,
FIG. 2
a bi-metal clamp at installation temperature,
FIG. 3
a bi-metal chock at operating temperature,
FIG. 4
a schematic representation of a turbine guide blade root and
FIG. 5
a schematic representation of a turbine guide blade root with Hammerfußform.

Die Figur 1 zeigt eine Anordnung zur Befestigung von Turbinenschaufeln 2 in einer Nut 3 einer Komponente 4. Die Turbinenschaufel 2 weist einen Turbinenschaufelfuß 5 auf, der in die entsprechende Nut 3 eingepasst ist. Zwischen dem Turbinenschaufelfuß 5 und der Komponente 4 ist ein Stemmstück 6 angeordnet, wobei das Stemmstück 6 ein Bi-Metall ist.The FIG. 1 shows an arrangement for mounting turbine blades 2 in a groove 3 of a component 4. The turbine blade 2 has a turbine blade root 5, which is fitted into the corresponding groove 3. Between the turbine blade root 5 and the component 4 a Stemmstück 6 is arranged, wherein the Stemmstück 6 is a bi-metal.

Die Turbinenschaufel 2 ist als Turbinenleitschaufel für eine Dampfturbine ausgebildet. Ebenso könnte die Turbinenschaufel 2 als Verdichterschaufel für eine Gasturbine oder einen Verdichter ausgebildet sein.The turbine blade 2 is designed as a turbine guide vane for a steam turbine. Likewise, the turbine blade 2 could be formed as a compressor blade for a gas turbine or a compressor.

Die Komponente 4 ist als Gehäuse, insbesondere Innengehäuse einer Dampfturbine ausgebildet.The component 4 is formed as a housing, in particular inner casing of a steam turbine.

Die Figur 2 zeigt das Stemmstück 6 bei Einbautemperatur. Das Stemmstück 6 umfasst ein erstes Material 7 und ein zweites Material 8, das durch endseitig starre Verbindungen 9 fest miteinander verbunden ist.The FIG. 2 shows the Stemmstück 6 at installation temperature. The Stemmstück 6 comprises a first material 7 and a second material 8, which is connected by rigid end connections 9 firmly together.

Das erste Material 7 weist gegenüber dem zweiten Material 8 ein unterschiedliches thermisches Ausdehnungsverhalten auf.The first material 7 has a different thermal expansion behavior compared to the second material 8.

Dadurch wird bei einer Erhöhung der Temperatur die geometrische Form des Stemmstücks 6 verändert, was in der Figur 3 dargestellt ist. Das Stemmstück 6 zeigt eine Verbiegung in eine Richtung. Da das Stemmstück 6 bei Einbautemperatur in einem Spalt 10 zwischen dem Turbinenschaufelfuß 5 und der Nut 3 angeordnet ist, erfolgt durch eine Temperaturerhöhung während des Betriebes ein Kraftzuwachs zwischen dem Turbinenschaufelfuß 5 und der Nut 3, was zu einer besseren Fixierung der Turbinenschaufel 2 führt.As a result, the geometric shape of the Stemmstücks 6 is changed with an increase in the temperature, which in the FIG. 3 is shown. The Stemmstück 6 shows a deflection in one direction. Since the Stemmstück 6 is arranged at installation temperature in a gap 10 between the turbine blade root 5 and the groove 3, carried by a temperature increase during operation, an increase in power between the turbine blade root 5 and the groove 3, resulting in a better fixation of the turbine blade 2.

In dem hier dargestellten Beispiel wurde eine Turbinenschaufel für die Anwendung in einer Dampfturbine dargestellt. Es ist genauso gut eine Anwendung für Verdichterschaufeln in Gasturbinen möglich.In the example shown here, a turbine blade for use in a steam turbine was shown. It is just as possible an application for compressor blades in gas turbines.

Die Erfindung ist ebenso für Turbinenleitschaufeln anwendbar, was in der Figur 4 gezeigt wird. Die in Figur 4 gezeigte Turbinenleitschaufel weist einen als Hakenfuß ausgebildeten Turbinenschaufelfuß 5 auf. Dieser weist eine zu einem Leitschaufelträger 11 zeigende Oberfläche 12 auf. In dem Leitschaufelträger 11 ist ein Spalt 13 ausgebildet, in dem das Stemmstück 6 angeordnet ist.The invention is also applicable to turbine vanes, which in the FIG. 4 will be shown. In the FIG. 4 Turbine vane shown has a trained as a hook foot turbine blade root 5. This has a pointing to a guide blade carrier 11 surface 12. In the guide blade carrier 11, a gap 13 is formed, in which the Stemmstück 6 is arranged.

Des Weiteren weist der Turbinenschaufelfuß 5 eine im Wesentlichen seitlich angeordnete Seitenfläche 14 auf, die im Wesentlichen senkrecht zur Oberfläche 12 ausgerichtet ist. Das Stemmstück 6 ist in einem seitlich angeordneten Spalt 13 angeordnet, was zu einer zusätzlichen Fixierung führt.Furthermore, the turbine blade root 5 has a substantially laterally arranged side surface 14, which is aligned substantially perpendicular to the surface 12. The Stemmstück 6 is arranged in a laterally arranged gap 13, which leads to an additional fixation.

Figur 5 zeigt einen als Hammerfuß ausgebildeten Turbinenschaufelfuß 5 auf. FIG. 5 shows a formed as a hammer foot turbine blade root 5.

Claims (4)

Anordnung (1) zur Befestigung von Turbinenschaufeln (2), wobei die Turbinenschaufeln (2) einen Turbinenschaufelfuß (5) aufweisen,
der in eine Nut (3) in einer Komponente (4) eingepasst ist, wobei zwischen dem Turbinenschaufelfuß (5) und der Komponente (4) ein Stemmstück (6) angeordnet ist,
dadurch gekennzeichnet, dass
das Stemmstück (6) ein Bi-Metall ist.Arrangement (1) for fastening turbine blades (2), wherein the turbine blades (2) have a turbine blade root (5),
which is fitted in a groove (3) in a component (4), wherein between the turbine blade root (5) and the component (4) a Stemmstück (6) is arranged,
characterized in that
the Stemmstück (6) is a bi-metal. Anordnung (1) nach Anspruch 1,
wobei die Turbinenschaufel (2) als Turbinenleitschaufel ausgebildet ist.Arrangement (1) according to claim 1,
wherein the turbine blade (2) is designed as a turbine guide vane. Anordnung (1) nach Anspruch 1,
wobei die Turbinenschaufel (2) als Turbinenlaufschaufel ausgebildet ist.Arrangement (1) according to claim 1,
wherein the turbine blade (2) is formed as a turbine blade. Anordnung (1) nach Anspruch 1, 2 oder 3,
wobei die Komponente (4) als Gehäuse, insbesondere als Innengehäuse einer Dampfturbine ausgebildet ist.Arrangement (1) according to claim 1, 2 or 3,
wherein the component (4) is designed as a housing, in particular as an inner casing of a steam turbine.
EP13185739.3A 2013-09-24 2013-09-24 Assembly for attaching a turbine blade Withdrawn EP2851515A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP13185739.3A EP2851515A1 (en) 2013-09-24 2013-09-24 Assembly for attaching a turbine blade
US14/915,686 US20160194970A1 (en) 2013-09-24 2014-08-29 Arrangement for securing turbine blades
PCT/EP2014/068354 WO2015043874A1 (en) 2013-09-24 2014-08-29 Arrangement for securing turbine blades
EP14759132.5A EP3025029A1 (en) 2013-09-24 2014-08-29 Arrangement for securing turbine blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13185739.3A EP2851515A1 (en) 2013-09-24 2013-09-24 Assembly for attaching a turbine blade

Publications (1)

Publication Number Publication Date
EP2851515A1 true EP2851515A1 (en) 2015-03-25

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EP13185739.3A Withdrawn EP2851515A1 (en) 2013-09-24 2013-09-24 Assembly for attaching a turbine blade
EP14759132.5A Withdrawn EP3025029A1 (en) 2013-09-24 2014-08-29 Arrangement for securing turbine blades

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EP14759132.5A Withdrawn EP3025029A1 (en) 2013-09-24 2014-08-29 Arrangement for securing turbine blades

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EP (2) EP2851515A1 (en)
WO (1) WO2015043874A1 (en)

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Publication number Priority date Publication date Assignee Title
JP7011952B2 (en) * 2018-03-01 2022-01-27 三菱パワー株式会社 Static wing segment and steam turbine equipped with it

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JPS61129405A (en) * 1984-11-28 1986-06-17 Hitachi Ltd Fixing method of turbine moving blade
EP1085172A2 (en) * 1999-09-17 2001-03-21 General Electric Company Composite blade root attachment
EP2239423A1 (en) * 2009-03-31 2010-10-13 Siemens Aktiengesellschaft Axial turbomachine with passive blade tip gap control
EP2372095A1 (en) * 2010-03-26 2011-10-05 Siemens Aktiengesellschaft Method and device for fixing a blade to a rotor using a memory shape element
WO2012156633A1 (en) * 2011-05-17 2012-11-22 Snecma Turbine engine impeller
WO2013017805A1 (en) * 2011-08-03 2013-02-07 Snecma Turbine-engine impeller

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