WO2012113623A1 - Aube de turbine ainsi que procédé de fabrication d'une aube de turbine - Google Patents

Aube de turbine ainsi que procédé de fabrication d'une aube de turbine Download PDF

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Publication number
WO2012113623A1
WO2012113623A1 PCT/EP2012/051654 EP2012051654W WO2012113623A1 WO 2012113623 A1 WO2012113623 A1 WO 2012113623A1 EP 2012051654 W EP2012051654 W EP 2012051654W WO 2012113623 A1 WO2012113623 A1 WO 2012113623A1
Authority
WO
WIPO (PCT)
Prior art keywords
turbine blade
erosion
layer
protection
layers
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.)
Ceased
Application number
PCT/EP2012/051654
Other languages
German (de)
English (en)
Inventor
Anett Berndt
Norbert Scheunert
Christian Seidel
Lutz Völker
Heinrich Zeininger
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 WO2012113623A1 publication Critical patent/WO2012113623A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/04—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from several pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
    • B29C70/882—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding
    • B29C70/885—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding with incorporated metallic wires, nets, films or plates
    • 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
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/286—Particular treatment of blades, e.g. to increase durability or resistance against corrosion or erosion
    • 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
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/288—Protective coatings for blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0087—Wear resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/08—Thermoplastics
    • 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
    • F05D2230/90—Coating; Surface treatment
    • 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
    • F05D2260/00—Function
    • F05D2260/95—Preventing corrosion
    • 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
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/12—Light metals
    • F05D2300/121—Aluminium
    • 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
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/12—Light metals
    • F05D2300/125—Magnesium
    • 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
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/13—Refractory metals, i.e. Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W
    • F05D2300/133—Titanium
    • 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
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
    • F05D2300/431—Rubber
    • 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
    • F05D2300/603—Composites; e.g. fibre-reinforced

Definitions

  • the invention relates to a turbine blade, in particular a turbine blade for a steam turbine, and a Ver ⁇ drive for producing such a turbine blade.
  • Turbine blades of a turbine stage of a turbine are exposed to high stresses.
  • the turbine blades are ⁇ NEN affected by high Tropfenschlagerosi- onsbe publishedung.
  • the high loads affect the life of the turbine blade, in particular the final stage blades, a Kondensationsdampfturbine significantly ⁇ .
  • the turbine blades and in particular the turbine blades of steam turbines are currently predominantly made of steel.
  • Fiber composites have the advantage of high specific strength at at the same time low weight.
  • the erosion burden increases again significantly. Water drops with a size of about 25 to 400 microns, in particular of about 100 ⁇ and a relative speed of about 490 m / s can occur on the blade surface.
  • Turbine blades of a fiber composite material however, already destroyed at lower Geschwindigkei ⁇ th drop of water in a few minutes. In order to counteract the high level of wear on turbine blades made of fiber composite materials, it is therefore necessary to form them with special erosion protection.
  • a hybrid multi-component blade or vane of a steam turbine is known, the core of which is formed of a company server ⁇ composite material on the surface thereof and an erosion coating made of polyurethane is provided.
  • a protective cap is additionally arranged on the erosion coating.
  • This protective cap is made of titanium because titanium has greater erosion resistance than the fiber composite and erosion protection coating. Due to the solid wasbil ⁇ Deten protective cap made of titanium, however, goes in the field of
  • Elastomeric coating can bring to bear its damping property in Wesentli ⁇ chen full.
  • German patent application 10 2009 047 798.5 of the applicant it is further known form trainees erosion protection component with a multi-layered structure.
  • the multi-layered structure is a graduated structure with different layers.
  • the outer layer consists of a very hard and erosi onsunform material.
  • Under the first layer ei ne second elastic and / or visco-elastic layer is integrally ⁇ arranged, which ensures that produced by the drop Kör ⁇ perschallwellen be largely absorbed.
  • the following layer is a glass mat and the underlying one
  • the erosion protection layer can be adapted to the complex geometry of the turbine blade only with difficulty, so that full application of the
  • the turbine blade according to the invention which consists of a fiber composite material at least be ⁇ includes an erosion protection, which is at least partially disposed on the surface of the turbine blade, the Erosi ⁇ onstik consists of at least two polymeric layers and at least two metallic layers, the alternating are arranged one above the other.
  • the essential advantage of this multilayer coating compared to an erosion protection, which consists only of a metallic and a polymeric layer, is that the multi-layer erosion protection has a higher forming capacity. This ensures a simple and robust geometry adjustment and a full-surface application of the protective layer, especially in the area of the leading edge. The application of the multilayer coating can take place during the manufacturing process of the turbine blade or afterwards.
  • the erosion protection consisting of alternately arranged polymeric and metallic layers, offers over the known from the prior art layers, with only a metallic layer and an elastic or viscoelastic layer and underlying glass mats or glass fabrics, a significantly increased erosion protection.
  • a destruction of the first sheet layer consisting of a metal and a polymeric layer does not occur UNMIT ⁇ telbar to the destruction of the entire turbine blade, since the underlying sheet layer consisting of another metal and a further polymeric layer further provide an effective protection against erosion. Due to the additional arrangement of further metallic polymeric layers erosion protection can be easily adapted to the respective requirements.
  • a particularly preferred embodiment of the invention provides that the outer layer of the erosion protection a metal lische layer is.
  • the metallic layer has the advantage that it ensures a particularly good erosion protection with high energy absorption.
  • the polymeric layer disposed under the metallic layer essentially provides mechanical damping.
  • a particularly preferred embodiment of the invention provides that the metallic layer consists of steel, of aluminum, of an aluminum alloy, of titanium, of a titanium alloy, of magnesium or of a magnesium alloy. Due to their high energy- absorbing capacity, these materials have a particularly high protection against drop impact erosion.
  • a further preferred embodiment of the invention provides that the polymeric layer of polyurethane, a thermoplastic elastomer, in particular a thermoplastic polyurethane, or a rubber, in particular a hydrogenated acrylonitrile butadiene rubber, chloroprene, isoprene, ethylene-propylene-diene rubber (EPDM ) or a fluororubber.
  • a thermoplastic elastomer in particular a thermoplastic polyurethane
  • a rubber in particular a hydrogenated acrylonitrile butadiene rubber, chloroprene, isoprene, ethylene-propylene-diene rubber (EPDM ) or a fluororubber.
  • EPDM ethylene-propylene-diene rubber
  • the turbine blade according to the invention has a metallic layer with a layer thickness of 0.05 to 0.5 mm in a particular ⁇ DERS preferred embodiment of the invention.
  • a layer thickness of this order of magnitude ensures, on the one hand, a high formability of erosion protection and, on the other hand, sufficient protection against drop impact erosion.
  • a further preferred embodiment of the invention provides that the polymeric layer has a layer thickness of 0.02 to 1 mm.
  • a layer thickness in this size ge ⁇ ensures a sufficient mechanical damping and enables maintaining a high forming capability of the erosion protection.
  • the cohesive connection can simply rely on the surface of the turbine blade he ⁇ followed by gluing or melting.
  • the positive connection is effected by plasti ⁇ cal forming the erosion protection for optimized mechanical connection.
  • the method for producing the turbine blade provides that the Her ⁇ position the turbine blade and the connection of the turbine blade with the erosion protection by means of a prepreg or resin transfer molding method (RTM) take place.
  • RTM resin transfer molding method
  • the special design or the specific characteristics ⁇ shaft of the multi-layer film comprising at least two me ⁇ -metallic and two polymeric layers, which are laminated in alternie ⁇ render sequence above one another, results in an erosion protection with a particularly high and good forming property, thereby a simple and robust geo ⁇ metric adjustment and a full-surface application of the protective layer is ensured especially in the area of the leading edges.
  • the erosion protection layers used hitherto have only limited reshaping capability, whereby a coating with an erosion protection layer proved to be difficult or even impossible especially in the area of the leading edges.
  • the turbine blade according to the invention with the multilayer protective layer comprises at least two polymeric protective ⁇ layers and at least two metallic layers, thus ensuring an improved protection against erosion and thus egg ne increased service life of the turbine blade.
  • the turbine blade is particularly suitable for use in steam turbines and ⁇ especially for Endgenlaufschaufei at Kon ⁇ densationsdampfturbinen, where an increased drop erosion load occurs.
  • FIG. 1 A detailed view of a leading edge of an inventive ⁇ SEN turbine blade of FIG. 1
  • FIG. 1 shows a side view of a turbine blade 1, which can be used in particular as an end stage rotor blade for a steam turbine.
  • the turbine blade 1 is formed from a fiber composite material.
  • several layers of fiber mats are arranged one above the other.
  • the mats so that the main fiber direction are aligned according to the main stress ⁇ direction of the turbine blade 1.
  • a fiber ⁇ material is particularly suitable glass fiber or carbon fiber.
  • the fiber mats are embedded in a matrix.
  • the matrix is preferably made of a synthetic resin and provides for a connection of the fiber mats with each other. However, the matrix itself can not absorb high tensile forces.
  • the turbine blade 1 is due to the Faserverbundtechnikstof ⁇ fes very sensitive to drop impact erosion.
  • the turbine blade 1 comprises an erosion protection 2, which is at least partially arranged on the surface of the turbine blade. 1
  • the erosion protection 2 is arranged at the leading edge 6 of the turbine blade 1.
  • the leading edge 6 is most of Trop ⁇ fenschlagerosion risk because the water drops substantially impinge here.
  • the erosion protection 2 is mounted in the embodiment only in the upper half of the leading edge 6. In this region of the leading edge 6, there is the greatest erosion stress, since during operation of the turbine here the largest peripheral speeds occur.
  • the erosion protection 2 is preferably inserted into the blade contour of the turbine blade 1 in such a way that a smooth transition occurs without edges between the erosion protection 2 and the turbine blade 1.
  • the turbine blade 1 additionally comprises a second Erosi ⁇ onstik 2 at the trailing edge 7 of the turbine blade. 1
  • the trailing edge 7 is not very susceptible to erosion, as there is no drop impact here.
  • the erosion protection 2 at the trailing edge 7, the turbine blade 1, is provided for the ventilation operation.
  • water is sprayed from behind against the Turbinenschau- fei. 1 In this case, under unfavorable conditions, water drops may impinge on the outlet edge 7 of the turbine blade 1. This can then lead to an increased erosion load on the trailing edge 7.
  • the Erosion protection component 2 at the trailing edge 7 can We ⁇ kungsvoll prevent damage to the turbine blade in this area.
  • the erosion protection device can thereby be connected to the turbine blade 1 directly to the lung herstel ⁇ the turbine blade 1 by means of a resing Transfer Mode ling method (RTM) or by means of prepreg process.
  • RTM Transfer Mode ling method
  • Connecting the Erosi ⁇ onstikes 2 with the turbine blade 1 can also retrospectively borrowed by means of mass and / or form-locking connection. As cohesive bonding is gluing or melting on. The form-fitting connection takes place by plastic deformation of the erosion shield 2.
  • additional fastening can restriction means in particular be ver ⁇ employs screws, rivets or pins, which connects the turbine blade 1 with the erosion ⁇ protection. 2
  • FIG. 2 shows a detailed view of the turbine blade 1 with the erosion protection 2.
  • the erosion protection 2 is at least two metal layers 3 are formed, which are arranged one above the other ternierend al ⁇ a so-called multi-layer of at least two polymeric layers 4 and.
  • the erosion protection 2 must be erosion-stable, ie have a high mechanical stability against drop impact erosion.
  • he must offer a good formability, so that he can adapt well to the profile of the turbine blade 1 and thus can be arranged over the entire surface of the turbine blade 1.
  • high Energyfä ⁇ ability and a good hydrolysis resistance are necessary.
  • erosion protection 2 as a multilayer, with alternately arranged over ⁇ layers of a polymer and a metal.
  • the outer layer of erosion protection 2 is a metallic layer 3.
  • a metallic layer 3 is particularly suitable steel, aluminum or aluminum alloys, titanium or titanium alloys, magnesium or magnesium alloys. These materials offer a high erosion protection, high mechanical stability and high energy absorption capability ⁇ ness.
  • polymeric layer 4 is particularly Polyu ⁇ rethane, thermoplastic elastomers, thermoplastic Polyu ⁇ Rethane, or rubber are suitable, especially hydrogenated acrylonitrile butadin rubber, chloroprene, isoprene, ethylene-propylene-diene rubber (EPDM) or fluorine rubber. These polymers provide good damping of the impact energy of the on ⁇ impinging water droplets.
  • metal layers 3 having a thickness of 0.05 to 0.5 mm, in particular of titanium forcedge ⁇ represents.
  • Particularly suitable polymer layer 4 ei ⁇ ne polymer layer of polyurethane having a layer thickness Zvi ⁇ rule 0.02 and 1.0 mm has been found.
  • the production of a multilayer layer 2 of rubber and metal can be carried out by pressing the metal with the rubber, wherein the rubber is applied with or without adhesion promoter or primer on the metal layer.
  • the connection between the layers can be effected by lamination (hot lamination) or compression (hot-pressing) or by means of melting-on bonding techniques by means of other methods.
  • an additional layer between the erosion shield 2 and the turbine blade 1 can be arranged at ⁇ play, from fiber mats or resin-impregnated fiber mats (prepregs). 5
  • erosion protection 2 Due to the formation of erosion protection 2 as a multilayer with layers of polymer and metallic layers arranged alternately one above the other, an erosion layer results. contactor 2, which has a particularly high formability.
  • This specific property of the multilayer structure allows a simple and rugged geometry adjustment and a full-surface (part-area) applying the erosion ⁇ guard 2 specifically in the field of Anströmkantekante (leading edge) during the bucket manufacturing process or subsequent to the manufacturing process of the turbine blade.
  • the use of a multilayer with layers of metal and polymer results in particularly good erosion protection.
  • the metallic layer 3 provides through its high hardness for a particularly good mecha ⁇ American protection against drop impact erosion and ensures high energy absorption capability.
  • the polymeric layers 4 ensure that the drops impact energy is attenuated and can not propagate into the fiber composite material of the turbine blade. 1 By combining the two layer materials a particularly good erosion ⁇ protection is guaranteed.
  • FIG. 3 shows a detailed view of the turbine blade 1 shown in FIG. 1.
  • the detailed view shows the leading edge 6 of the turbine blade 1.
  • FIG. 3 shows clearly how the erosion protection 2 fits into the blade contour of the turbine blade 1.
  • the turbine blade 1 is prepared so that after inserting the erosion protection 2, the final blade contour of the turbine blade 1 results. Between the erosion protection 2 and the turbine blade 1 results in a smooth transition without any edge. The flow conditions on the turbine blade 1 thus remain completely intact and tearing off of the flow at the transition from the erosion protection 2 to the turbine blade 1 is avoided.
  • the compound Zvi ⁇ rule of the turbine blade 1 and the erosion shield 2 by the lamination of the erosion protection is 2.
  • the Erosion protection part 2 secured with additional fastening means 7, in particular screws, rivets or pins.
  • the fastening means 7 provide additional security against loosening of the erosion protector 2, in particular in an error- ⁇ exemplary lamination.
  • the turbine blade according to the invention provides by the Erosi ⁇ onstik consisting of at least two polymeric layers and at least two metallic layers which are arranged alternately one above the other, onstikbau now improved protection against drop impact erosion compared to the previously used Erosi-.
  • the use of the alternately stacked layers results in a particularly high deformation capacity of the erosion protection, whereby a full-surface arrangement of the erosion protection is also possible on kompli ⁇ ed geometric shapes of the turbine blade. Due to the high deformation capacity of the erosion protection, in particular the heavily loaded leading edge of the turbine blade can be effectively protected against drop impact erosion.
  • he erosion protection turbine blades which are made of Fa ⁇ server composite material can be used also in Tropfenschlag- prone environment, especially in the wet steam region of condensing steam turbines, without causing premature destruction of the turbine blade.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L'invention concerne une aube de turbine (1) constituée au moins par endroits par un composite renforcé de fibres, comportant une protection contre l'érosion (2) disposée au moins par endroits sur la surface de l'aube de turbine (1). La protection contre l'érosion (2) est constituée d'au moins deux couches métalliques (3) et d'au moins deux couches polymères (4) superposées de manière alternée. L'invention concerne également un procédé de fabrication d'une aube de turbine (1) dotée d'une telle protection contre l'érosion (2).
PCT/EP2012/051654 2011-02-22 2012-02-01 Aube de turbine ainsi que procédé de fabrication d'une aube de turbine Ceased WO2012113623A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011004525.2 2011-02-22
DE102011004525 2011-02-22

Publications (1)

Publication Number Publication Date
WO2012113623A1 true WO2012113623A1 (fr) 2012-08-30

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PCT/EP2012/051654 Ceased WO2012113623A1 (fr) 2011-02-22 2012-02-01 Aube de turbine ainsi que procédé de fabrication d'une aube de turbine

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019216073A1 (de) * 2019-09-23 2021-03-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Herstellung einer Leichtbau-Turbinenschaufel als Verbundbauteil sowie eine mit dem Verfahren hergestellte Leichtbau-Turbinenschaufel
CN112654495A (zh) * 2018-08-31 2021-04-13 赛峰飞机发动机公司 由复合材料制成并具有增强侵蚀保护膜的叶片以及相关的保护方法
US11976626B2 (en) 2020-02-10 2024-05-07 Lm Wind Power A/S Leading edge protection for a wind turbine blade
US12560146B2 (en) 2022-08-09 2026-02-24 Lm Wind Power A/S Leading edge protection for a wind turbine blade

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0813956A1 (fr) * 1996-05-29 1997-12-29 United Technologies Corporation Nouvelle méthode d'assemblage métal/composite
US20030129061A1 (en) * 2002-01-08 2003-07-10 General Electric Company Multi-component hybrid turbine blade
EP1788197A1 (fr) * 2005-11-21 2007-05-23 Siemens Aktiengesellschaft Aube de turbine pour turbine à vapeur
EP1895021A1 (fr) * 2006-08-31 2008-03-05 Honeywell International Inc. Revêtement protecteurs contre l'érosion sur des composites de matrice polymère et composants incorporant de tels composites revêtus
US20090074586A1 (en) * 2007-09-13 2009-03-19 Snecma Damping device for composite blade
WO2011051362A2 (fr) * 2009-10-28 2011-05-05 Siemens Aktiengesellschaft Aube d'un étage de turbine à vapeur et aubage mobile ou aubage directeur d'un étage de turbine à vapeur

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0813956A1 (fr) * 1996-05-29 1997-12-29 United Technologies Corporation Nouvelle méthode d'assemblage métal/composite
US20030129061A1 (en) * 2002-01-08 2003-07-10 General Electric Company Multi-component hybrid turbine blade
EP1788197A1 (fr) * 2005-11-21 2007-05-23 Siemens Aktiengesellschaft Aube de turbine pour turbine à vapeur
EP1895021A1 (fr) * 2006-08-31 2008-03-05 Honeywell International Inc. Revêtement protecteurs contre l'érosion sur des composites de matrice polymère et composants incorporant de tels composites revêtus
US20090074586A1 (en) * 2007-09-13 2009-03-19 Snecma Damping device for composite blade
WO2011051362A2 (fr) * 2009-10-28 2011-05-05 Siemens Aktiengesellschaft Aube d'un étage de turbine à vapeur et aubage mobile ou aubage directeur d'un étage de turbine à vapeur

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112654495A (zh) * 2018-08-31 2021-04-13 赛峰飞机发动机公司 由复合材料制成并具有增强侵蚀保护膜的叶片以及相关的保护方法
CN112654495B (zh) * 2018-08-31 2023-09-15 赛峰飞机发动机公司 由复合材料制成并具有增强侵蚀保护膜的叶片以及相关的保护方法
DE102019216073A1 (de) * 2019-09-23 2021-03-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Herstellung einer Leichtbau-Turbinenschaufel als Verbundbauteil sowie eine mit dem Verfahren hergestellte Leichtbau-Turbinenschaufel
DE102019216073B4 (de) 2019-09-23 2021-12-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Herstellung einer Leichtbau-Turbinenschaufel als Verbundbauteil sowie eine mit dem Verfahren hergestellte Leichtbau-Turbinenschaufel
US11976626B2 (en) 2020-02-10 2024-05-07 Lm Wind Power A/S Leading edge protection for a wind turbine blade
US12560146B2 (en) 2022-08-09 2026-02-24 Lm Wind Power A/S Leading edge protection for a wind turbine blade

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