DE102013014271A1 - Method for processing rotor blades of wind turbines and arrangement for checking the performance of these blades - Google Patents
Method for processing rotor blades of wind turbines and arrangement for checking the performance of these blades Download PDFInfo
- Publication number
- DE102013014271A1 DE102013014271A1 DE102013014271.7A DE102013014271A DE102013014271A1 DE 102013014271 A1 DE102013014271 A1 DE 102013014271A1 DE 102013014271 A DE102013014271 A DE 102013014271A DE 102013014271 A1 DE102013014271 A1 DE 102013014271A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor blades
- performance
- arrangement
- blades
- wind turbines
- 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- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims abstract description 3
- 239000011151 fibre-reinforced plastic Substances 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000004760 aramid Substances 0.000 claims description 2
- 229920003235 aromatic polyamide Polymers 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims description 2
- 238000012958 reprocessing Methods 0.000 claims 1
- 230000006378 damage Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/50—Maintenance or repair
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2230/00—Manufacture
- F05B2230/80—Repairing, retrofitting or upgrading methods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2280/00—Materials; Properties thereof
- F05B2280/60—Properties or characteristics given to material by treatment or manufacturing
- F05B2280/6003—Composites; e.g. fibre-reinforced
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
Die Erfindung betrifft ein Verfahren, mittels derer gebrauchte Rotorblätter von Windenergieanlagen (WEA) aus faserverstärkten Kunststoffen unter Erhaltung ihrer Trag- und Funktionsstruktur aufgearbeitet und für einen Wiedereinsatz mit dem Ziel einer vollwertigen gleichen oder höheren Leistungsfähigkeit ertüchtigt werden. Die Erfindung betrifft weiterhin eine zentrifugal wirkende Anordnung, vermittels derer unter realen Nutzungsbedingungen die Leistungsfähigkeit und Festigkeit dieser Rotorblätter getestet und nachgewiesen werden kann.The invention relates to a method by means of which used rotor blades of wind turbines (WTs) made of fiber-reinforced plastics while preserving their support and functional structure processed and for a re-use with the aim of a full equal or higher capacity can be upgraded. The invention further relates to a centrifugally acting arrangement, by means of which the performance and strength of these rotor blades can be tested and detected under real conditions of use.
Description
Die Erfindung betrifft ein Verfahren, mittels derer gebrauchte Rotorblätter von Windenergieanlagen (WEA) aus faserverstärkten Kunststoffen unter Erhaltung ihrer Trag- und Funktionsstruktur aufgearbeitet und für einen Wiedereinsatz mit dem Ziel einer vollwertigen gleichen oder höheren Leistungsfähigkeit ertüchtigt werden. Die Erfindung betrifft weiterhin eine zentrifugal wirkende Anordnung, vermittels derer unter realen Nutzungsbedingungen die Leistungsfähigkeit und Festigkeit dieser Rotorblätter getestet und nachgewiesen werden kann.The invention relates to a method by means of which used rotor blades of wind turbines (WTs) made of fiber-reinforced plastics while preserving their support and functional structure processed and for a re-use with the aim of a full equal or higher capacity can be upgraded. The invention further relates to a centrifugally acting arrangement, by means of which the performance and strength of these rotor blades can be tested and detected under real conditions of use.
Nach dem erfolgreichen Einsatz von Rotorblättern in WEA über mehrere Jahrzehnte ergibt sich aus unterschiedlichen Gründen die Notwendigkeit, diese Rotorblätter durch solche mit höherer Leistungsfähigkeit bzw. infolge Verminderung der Leistungsfähigkeit durch Langzeitnutzung zu ersetzen. Gründe dafür können Beschädigungen, Abnutzungen oder die Technologie des Repowering sein. Die rückgebauten Rotorblätter werden derzeit vorzugsweise mittels kompletter Zerstörung und Recycling entsorgt. Sie werden dabei geshreddert oder mittels Verbrennung in sogenannten Kalzinatoren verbrannt. Auch eine temporäre Deponie wird vorgenommen. Dabei geht die mit außerordentlichem Aufwand gefertigte vollwertige Rotorensubstanz sowohl hinsichtlich der Form als auch des Materials verloren.After the successful use of rotor blades in wind turbines over several decades, there is a need for a variety of reasons to replace these rotor blades with those with higher performance or due to reduction in performance through long-term use. This may be due to damage, wear and tear or the technology of repowering. The disassembled rotor blades are currently preferably disposed of by means of complete destruction and recycling. They are shredded or burned by combustion in so-called calciners. Also a temporary landfill is made. In the process, the fully-fledged rotor substance, which is manufactured with extraordinary effort, is lost in terms of both shape and material.
Es ist Aufgabe der Erfindung, die rückgebauten und in ihrer Struktur erhaltenen Rotorblätter zu sichern, instand zu setzen und zu ertüchtigen sowie anschließend wieder für die Gewinnung von Windenergie zu verwenden. Dies bietet sich insbesondere an unter dem Aspekt, dass zukünftig in verstärktem Maße Kompressorentürme nach Pat.-Anmeldung 10 2012 011 855.4 – „Verfahren zur pneumatischen Erzeugung eines speicherbaren und förderbaren kalten Energiestromes ...” – zur Anwendung gelangen. Dabei werden Türme errichtet, welche eine Vielzahl einzelner Rotoren mit gekuppelten Kompressoren tragen, um die Windenergie sofort in einem speicher- und förderbaren Zustand zu erzeugen. Für die dabei eingesetzten Rotoren werden vorzugsweise kleine, schnelllaufende Rotoren verwendet, welche axial auch mehrfach gekuppelt sein können. Dabei ist es möglich, vorgenannte ertüchtigte Rotorenblätter erneut und dauerhaft einzusetzen.It is an object of the invention to secure the restored and obtained in their structure rotor blades to repair and to recover and then to use again for the production of wind energy. This offers itself in particular from the aspect that in the future to a greater extent compressor towers according to Pat. Application 10 2012 011 855.4 - "Process for the pneumatic production of a storable and recoverable cold energy flow ..." - reach the application. It towers are built, which carry a variety of individual rotors with coupled compressors to generate the wind energy immediately in a storable and conveyable state. For the rotors used in this case, preferably small, high-speed rotors are used, which can also be coupled axially several times. It is possible to use the aforementioned upgraded rotor blades again and permanently.
Die vorhandenen Alt-Rotorenblätter stellen mit ihrer Primär-Struktur eine Basisform dar, auf welcher die zur Ertüchtigung notwendige Sekundär-Struktur aufgebaut werden kann, wobei die Primär-Struktur weitgehend für die Gewährleistung der Festigkeitsaufgaben herangezogen werden soll. Die Ertüchtigung kann vorzugsweise durch das Aufbringen zusätzlicher Sicherungsarmierung in Form von Rovings und deren harmonischer Einbindung vermittels geeigneter Harze in die vorhandene Blatt-Struktur erfolgen. Die Rovings können dabei aus Glas, Aramid oder Kohlenstoff bestehen und bedingen eine dauerhafte Verträglichkeit mit dem Basismaterial. Auch kann eine Bewehrung der Rotorblätter mittels Stahlseilen oder gleichartiger Stahlstrukturen und deren Einbettung in geeignete Harze erfolgen. Die Achsanschlüsse sind entsprechend anzupassen. Die geometrischen Bedingungen der Rotorblätter können dabei nach allen drei Achsen gegenüber dem Ursprungszustand verändert werden, d. h., sie können in Länge, Breite, Blattdicke und Blattform variiert werden entsprechend den neuen Einsatzbedingungen.The existing old rotor blades represent with their primary structure is a basic form on which the secondary structure necessary for the work can be built, the primary structure should be used largely to ensure the strength tasks. The improvement can preferably be carried out by applying additional securing reinforcement in the form of rovings and their harmonious integration by means of suitable resins in the existing sheet structure. The rovings can consist of glass, aramid or carbon and cause lasting compatibility with the base material. Also, a reinforcement of the rotor blades by means of steel cables or similar steel structures and their embedding can be carried out in suitable resins. The axle connections must be adjusted accordingly. The geometric conditions of the rotor blades can be changed in all three axes compared to the original state, d. they can be varied in length, width, sheet thickness and sheet shape according to the new conditions of use.
Die Erfindung umfasst weiterhin eine Anordnung, mittels derer die Rotoren zur Prüfung ihrer Festigkeit einer komplexen zentrifugalen Belastung ausgesetzt werden, die zuzüglich einer Sicherheitsbelastung einen dauerhaften Betriebs- und Funktionszustand gewährleisten. Die Anlage soll die Einbau-Kombination eines anwendungs-adäquaten Rotors in entsprechende Umdrehungen bis zu einer definierten kritischen Drehzahl beschleunigen. Dabei ergeben sich insbesondere Prüfaufgaben für folgende Belastungsfälle:
- – Nachweise des Materialverbundes
- – Zentrifugalbeschleunigung in blatt-axialer Längsrichtung infolge kritischer Drehzahlen
- – gleichmäßige und pulsierende Horizontallasten oder Schräglasten aus Wind
- – Unwuchten aus Eisansatz
- – Nieder- und hochfrequente Schwingungen aus Rotoren-Unwucht sowie Windanstrom
- – Resonanzen und Schwingungsüberlagerungen
- – Torsion um die Blatt-Längsachse aus einseitiger Momenteneintragung
- – Transportbeanspruchung.
- - Evidence of the composite material
- Centrifugal acceleration in the axial axial direction due to critical speeds
- - uniform and pulsating horizontal loads or diagonal loads from wind
- - imbalances from ice accumulation
- - Low and high frequency vibrations from rotor imbalance and wind current
- - Resonances and vibration overlays
- - Torsion about the blade longitudinal axis from one-sided torque entry
- - Transport stress.
In welchem Umfang die Waben- bzw. Hohlstruktur der Rotorblätter für den Einbau zusätzlicher Sicherungsarmierung genutzt werden kann, ist bauartbedingt zu prüfen.The extent to which the honeycomb or hollow structure of the rotor blades can be used for the installation of additional safety reinforcement is to be checked by design.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013014271.7A DE102013014271A1 (en) | 2013-08-27 | 2013-08-27 | Method for processing rotor blades of wind turbines and arrangement for checking the performance of these blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013014271.7A DE102013014271A1 (en) | 2013-08-27 | 2013-08-27 | Method for processing rotor blades of wind turbines and arrangement for checking the performance of these blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102013014271A1 true DE102013014271A1 (en) | 2015-03-05 |
Family
ID=52469971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102013014271.7A Withdrawn DE102013014271A1 (en) | 2013-08-27 | 2013-08-27 | Method for processing rotor blades of wind turbines and arrangement for checking the performance of these blades |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102013014271A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016206661A1 (en) * | 2016-04-20 | 2017-10-26 | Innogy Se | Method of upgrading rotor blades of existing wind turbines |
| DE102018005965A1 (en) * | 2018-07-30 | 2020-01-30 | Senvion Gmbh | ROTOR BLADE FOR A WIND POWER PLANT, WIND POWER PLANT; METHOD FOR EXTENDING A ROTOR BLADE AND METHOD FOR PRODUCING A ROTOR BLADE |
-
2013
- 2013-08-27 DE DE102013014271.7A patent/DE102013014271A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016206661A1 (en) * | 2016-04-20 | 2017-10-26 | Innogy Se | Method of upgrading rotor blades of existing wind turbines |
| DE102018005965A1 (en) * | 2018-07-30 | 2020-01-30 | Senvion Gmbh | ROTOR BLADE FOR A WIND POWER PLANT, WIND POWER PLANT; METHOD FOR EXTENDING A ROTOR BLADE AND METHOD FOR PRODUCING A ROTOR BLADE |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Quaresimin et al. | On the investigation of the biaxial fatigue behaviour of unidirectional composites | |
| EP1788197A1 (en) | Turbine blade for a steam turbine | |
| DE102013101232A1 (en) | Wind turbine rotor blade assembly with root extender and assembly method | |
| EP2209995A1 (en) | Multi-stage pump rotor for turbo-molecular pump | |
| EP2551094B1 (en) | Bond and stitch repair for delaminated composite | |
| EP2137381A1 (en) | Method for producing coated turbine blades and blade ring for a rotor of a turbine with axial flow | |
| DE102009040515A1 (en) | Rotor blade for three-wing wind turbine of wind power plant, has hollow profile reinforced so that bending-, shear- and torsion-resistant cell is formed between transverse grids, where cell causes local and global reinforcements of blade | |
| DE102007036917A1 (en) | Rotor blade for wind power plant i.e. floating wind power plant, has clamping member arranged on pillar such that effective cross section holds additional compressive strength to anticipate stress-dependent deformation due to wind load | |
| WO2012100933A1 (en) | Method and device for changing a gasket in an aircraft engine | |
| EP2602098A1 (en) | Repair method | |
| EP3199451A1 (en) | Nose cone for a fan of an aircraft engine | |
| DE102013014271A1 (en) | Method for processing rotor blades of wind turbines and arrangement for checking the performance of these blades | |
| DE102008021684A1 (en) | Guide vanes of a vane grille of an aircraft gas turbine | |
| WO2008012153A1 (en) | Method for testing rotors | |
| DE102011003602B4 (en) | Safety system for a rotor blade of a wind turbine, rotor blade and wind turbine | |
| DE202011104782U1 (en) | Wind turbine (variants) | |
| EP3445970B1 (en) | Heavy-duty upgrading method for rotor blades of existing wind turbines | |
| EP1614857A1 (en) | Turbomachine with a rotor comprising at least one drilled disc | |
| EP3362679B1 (en) | Wind turbine rotor blade and method for producing a wind turbine rotor blade | |
| EP2436878A2 (en) | Coupling bolt for turbine blades | |
| EP3925872A1 (en) | Wrapped rotor | |
| DE102007034242A1 (en) | repair procedures | |
| Japins et al. | Compressive failure of quasi-static indented CFRP/aluminium honeycomb sandwich panels | |
| Colclough et al. | The development of a composite propeller blade with a carbon fibre reinforced plastics spar | |
| EP3307989B1 (en) | Gas turbine blade or compressor blade having anti-fretting coating in the blade root region and rotor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R086 | Non-binding declaration of licensing interest | ||
| R012 | Request for examination validly filed | ||
| R016 | Response to examination communication | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |