EP2489837A1 - Insert de dosage pour aube de turbine et aube de turbine associée - Google Patents

Insert de dosage pour aube de turbine et aube de turbine associée Download PDF

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Publication number
EP2489837A1
EP2489837A1 EP11154936A EP11154936A EP2489837A1 EP 2489837 A1 EP2489837 A1 EP 2489837A1 EP 11154936 A EP11154936 A EP 11154936A EP 11154936 A EP11154936 A EP 11154936A EP 2489837 A1 EP2489837 A1 EP 2489837A1
Authority
EP
European Patent Office
Prior art keywords
throttle
blade
turbine blade
flexible sealing
sealing elements
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Withdrawn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
EP11154936A
Other languages
German (de)
English (en)
Inventor
Fathi Ahmad
Winfried Esser
Giuseppe Gaio
Waldemar Heckel
Rudolf Küperkoch
Oliver Lüsebrink
Thorsten Mattheis
Mirko Milazar
Artur Mol
Uwe Paul
Oliver Ricken
Oliver Schneider
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
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
Priority to EP11154936A priority Critical patent/EP2489837A1/fr
Publication of EP2489837A1 publication Critical patent/EP2489837A1/fr
Withdrawn legal-status Critical Current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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
    • F01D5/187—Convection cooling
    • F01D5/188—Convection cooling with an insert in the blade cavity to guide the cooling fluid, e.g. forming a separation wall
    • 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
    • F05D2240/122—Fluid guiding means, e.g. vanes related to the trailing edge of a stator vane
    • 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
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/304—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the trailing edge of a rotor blade
    • 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
    • F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
    • F05D2300/614—Fibres or filaments

Definitions

  • the invention relates to a throttle insert according to the preamble of claim 1, as well as a turbine blade according to claim 6.
  • Turbine blades in particular those for gas turbines, must be cooled.
  • coolant is blown out through corresponding openings in the outer walls from the interior of the turbine blade to the outer surface of the blade walls.
  • the amount of blown coolant must be set as accurately as possible. This is done today via throttle inserts in the turbine blades whose throttle openings are dimensioned accordingly.
  • a generic turbine blade with a throttle insert is for example from the EP 1 717 416 A1 known and in FIG. 5 shown.
  • the turbine blade 21 has, along a blade longitudinal axis 23, a blade root 25, a platform region 27, and a blade profile 29 of a wing shape in succession.
  • the turbine blade is hollow in its interior for guiding coolant 51, preferably cooling air, so that it can withstand the high temperatures of the hot gas flowing around as the working medium of the gas turbine.
  • the blade profile 29 has a leading edge 31 for the inflowing hot gas and an outflow edge 33, at which the hot gas flowing around the blade profile 29 leaves the turbine blade 21.
  • a sheet-like throttle insert 39 is provided over approximately the full height of the blade profile 29, into which a plurality of throttle openings 41 introduced in the form of holes 43 are.
  • the throttle insert 39 may here be part of the mold for casting the turbine blade 21, which remains in the casting after casting, or it was subsequently inserted into the casting and sealed by welding, soldering or other suitable method between the pressure side wall 37 and the suction side wall 35 attached.
  • the object of the invention is to provide a throttle insert and a turbine blade, which overcome the disadvantage described above.
  • the flexible sealing elements either on one side or on the front side to the edge regions of the throttle plate.
  • FIG. 1 shows a partial section of a first embodiment of a throttle insert with a throttle plate B with throttle openings D, in which metal wool is soldered as a flexible sealing element A on one side to the edge regions of the throttle plate B.
  • FIG. 2 shows a detail of a second embodiment in which the metal wool A is applied on the front side on two opposite edge regions of the throttle plate B.
  • FIG. 3 is a training in which additional metal wool on a third edge area, here the front side, is applied.
  • FIG. 4 shows in section a section of a turbine blade with the two walls W1 and W2 of the concave curved pressure side wall and a spaced apart convexly curved suction side wall. Both walls W1 and W2 have on opposite sides at the point where the throttle insert to be introduced corresponding guide elements S1 and S2, which are designed here as guide grooves in which the throttle insert is inserted and fixed.
  • FIG. 4 also shows in enlarged detail the inserted into the guide grooves S1 and S2 and accordingly 1 to 3 trained throttle inserts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP11154936A 2011-02-18 2011-02-18 Insert de dosage pour aube de turbine et aube de turbine associée Withdrawn EP2489837A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11154936A EP2489837A1 (fr) 2011-02-18 2011-02-18 Insert de dosage pour aube de turbine et aube de turbine associée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11154936A EP2489837A1 (fr) 2011-02-18 2011-02-18 Insert de dosage pour aube de turbine et aube de turbine associée

Publications (1)

Publication Number Publication Date
EP2489837A1 true EP2489837A1 (fr) 2012-08-22

Family

ID=43708838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11154936A Withdrawn EP2489837A1 (fr) 2011-02-18 2011-02-18 Insert de dosage pour aube de turbine et aube de turbine associée

Country Status (1)

Country Link
EP (1) EP2489837A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3023586A1 (fr) * 2014-11-21 2016-05-25 Siemens Aktiengesellschaft Corps d'aube creuse, nervure à mortaiser et aube creuse
EP3101230A1 (fr) * 2015-05-29 2016-12-07 General Electric Company Composant de turbine à canaux de refroidissement de surface et son procédé de fabrication
US10364685B2 (en) * 2016-08-12 2019-07-30 Gneral Electric Company Impingement system for an airfoil
US10408062B2 (en) * 2016-08-12 2019-09-10 General Electric Company Impingement system for an airfoil
US10436048B2 (en) * 2016-08-12 2019-10-08 General Electric Comapny Systems for removing heat from turbine components
US10443397B2 (en) * 2016-08-12 2019-10-15 General Electric Company Impingement system for an airfoil

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1717416A1 (fr) 2005-04-25 2006-11-02 Siemens Aktiengesellschaft Aube de turbine, utilisation et méthode de fabrication de l'aube de turbine
EP1947295A1 (fr) * 2007-01-18 2008-07-23 Siemens Aktiengesellschaft Corps d'insertion d'une aube de turbine axiale

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1717416A1 (fr) 2005-04-25 2006-11-02 Siemens Aktiengesellschaft Aube de turbine, utilisation et méthode de fabrication de l'aube de turbine
EP1947295A1 (fr) * 2007-01-18 2008-07-23 Siemens Aktiengesellschaft Corps d'insertion d'une aube de turbine axiale

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3023586A1 (fr) * 2014-11-21 2016-05-25 Siemens Aktiengesellschaft Corps d'aube creuse, nervure à mortaiser et aube creuse
WO2016078851A1 (fr) * 2014-11-21 2016-05-26 Siemens Aktiengesellschaft Corps d'aube creuse, nervure d'insertion et aube creuse
CN107002496A (zh) * 2014-11-21 2017-08-01 西门子股份公司 中空叶片体、插入肋和中空叶片
EP3101230A1 (fr) * 2015-05-29 2016-12-07 General Electric Company Composant de turbine à canaux de refroidissement de surface et son procédé de fabrication
US9752440B2 (en) 2015-05-29 2017-09-05 General Electric Company Turbine component having surface cooling channels and method of forming same
US10364685B2 (en) * 2016-08-12 2019-07-30 Gneral Electric Company Impingement system for an airfoil
US10408062B2 (en) * 2016-08-12 2019-09-10 General Electric Company Impingement system for an airfoil
US10436048B2 (en) * 2016-08-12 2019-10-08 General Electric Comapny Systems for removing heat from turbine components
US10443397B2 (en) * 2016-08-12 2019-10-15 General Electric Company Impingement system for an airfoil

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