WO2000073651A1 - Pala para aerogenerador - Google Patents
Pala para aerogenerador Download PDFInfo
- Publication number
- WO2000073651A1 WO2000073651A1 PCT/ES2000/000187 ES0000187W WO0073651A1 WO 2000073651 A1 WO2000073651 A1 WO 2000073651A1 ES 0000187 W ES0000187 W ES 0000187W WO 0073651 A1 WO0073651 A1 WO 0073651A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tube
- blade
- wind turbine
- ribs
- sections
- Prior art date
Links
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 14
- 239000004917 carbon fiber Substances 0.000 claims abstract description 14
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000011152 fibreglass Chemical class 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000004026 adhesive bonding Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000003750 conditioning effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000005476 size effect Effects 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
-
- 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
- F03D80/30—Lightning protection
-
- 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
- F05B2230/20—Manufacture essentially without removing material
- F05B2230/23—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
- 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
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
-
- 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
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05B2240/302—Segmented or sectional blades
-
- 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
- F05B2280/20—Inorganic materials, e.g. non-metallic materials
- F05B2280/2006—Carbon, e.g. graphite
-
- 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
-
- 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
- F05B2280/6013—Fibres
-
- 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
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
- F05C2203/0865—Oxide ceramics
- F05C2203/0882—Carbon, e.g. graphite
-
- 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
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/04—Composite, e.g. fibre-reinforced
-
- 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
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/16—Fibres
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
-
- 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
Definitions
- the energy obtained is a function of the scanning surface of the blades of the rotor that receives the action of the wind, so that until now the largest wind turbines made are 800 to 1,000 Kilo years, which is achieved with shovels of approximately 30 meters in length, that is to say with a surface swept against the wind of the order of 60 meters in diameter.
- the largest wind turbines made are 800 to 1,000 Kilo years, which is achieved with shovels of approximately 30 meters in length, that is to say with a surface swept against the wind of the order of 60 meters in diameter.
- Wind turbines are usually mounted in mountain areas, where the difficulty of access further aggravates the transport problem.
- a wind turbine blade is proposed, whose constructive embodiment satisfactorily solves the aforementioned problems, allowing the construction of large length blades with adequate resistance for the stresses that must be supported and also with a composition that It allows the division into parts for normal road transport.
- This blade object of the invention is constituted by a set of attachable longitudinal sections, each of which comprises a core formed by a carbon fiber tube, with steel bushings inserted at the ends for the couplings, integrally incorporated over said tube a series of transverse ribs of carbon fiber or fiberglass, while on the set there are covers of fiberglass or carbon fiber, which are joined by gluing together, on the ribs and on the tube, forming a unitary structural assembly.
- shovels can be formed of any longitudinal dimension.
- the composition of the end zone adjacent to the base with an independent lateral bevel is provided, which can be decoupled from the rest for transport.
- the shape of the ribs is according to the aerodynamic profile that corresponds to the cross section of the blades, establishing the union of said ribs with the longitudinal tube at a point that corresponds to 25% of their length, that is, at the point which coincides with the center of gravity of the aerodynamic profile of the aforementioned ribs, so that they do not create torsion on the tube in the work behavior of the blades.
- this blade object of the invention is certainly very advantageous features, which give it a life of its own and preferred character with respect to conventional blades used so far in wind turbines.
- Figure 1 represents in perspective a wind turbine blade according to the object of the invention.
- Figure 2 is an exploded perspective of The same front shovel.
- Figure 3 is a perspective of the longitudinal tube of the blade structure with two enlarged details in section corresponding to the base end and to the attachable ends of the component sections.
- Figure 4 is a perspective of the aforementioned longitudinal tube of the blade with the transverse ribs incorporated, the configuration of a rib having been extracted in greater detail.
- Figure 5 is a side view of a two-section blade according to the object of the invention, an enlarged detail having been extracted in section of the coupling area of the sections.
- Figure 6 is a side view of the same front blade with the sections joined, with an enlarged sectional detail of the junction area of the sections and in turn a more enlarged detail of the correlative joint part of the covers.
- Figure 7 is an enlarged view of the cross section of the blade according to section VII-VII indicated in the previous figure.
- Figure 8 shows in perspective a three-section blade according to the object of the invention.
- Figure 9 is a perspective view of the same blade as in the previous figure, with the separate component sections.
- Figure 10 shows in perspective a shovel of three longitudinal sections and a fourth lateral section in the part corresponding to the widest end zone.
- Figure 11 is a perspective of the same blade of the previous figure, with the component sections separated.
- the object of the invention relates to a shovel for wind turbine, which is formed by composition by one, two or more sections (1) successively attachable.
- Each of said sections (1) components are structured with a soul formed by a longitudinal tube
- transverse ribs (5) made of carbon fiber or glass fiber, which are correlative to the aerodynamic profile of the blade.
- Said ribs (5) are arranged with respect to the tube (2) in such a way that it passes through them through a point corresponding to 25% of their length, whereby these ribs (5) are mounted precisely in subjection by the point that coincides with the center of gravity of the aerodynamic profile that they configure.
- housings (6) made of fiberglass or carbon fiber, which are bonded together, establishing themselves glued to the ribs (5) and the tube (2), as seen in Figure 7.
- the housings (6) corresponding to the sides determine a conformation (7) correspondingly with the curvature of the tube contour (2), being defined in said conformation (7) grooves (8) of according to the position and the thickness of the ribs (5), so that in the assembly said lateral housings (6) fit being attached to the tube (2), at the same time as they are supported on the ribs (5).
- each section (1) result according to a unitary structural assembly.
- the sections thus formed are joined for the composition of the blade, by means of moorings (9) between the droppers (3) included in the tube sections (2), establishing in turn the connection between the respective housings (6) by means of corresponding ones moorings (10) with respect to a metal rib (11) that is included in the coupling, bolting between the bushings (3), as seen in figures 5 and 6.
- the blade assembly thus results in a large soul rigidity, formed by the tube (2) of carbon fiber and with an elastic cover, formed by the housings (6) of fiberglass, whose constructive embodiment is also provided by means of a curb at + 45 °, which is obtained a maximum stretch capacity of the formed material.
- the composition in sections (1) also allows a division of the blade into parts dimensionally suitable for normal road transport, so that, for example, for lengths between 35 and 50 meters the composition is made in two sections (1), as the embodiment of figures 1 to 6, while for lengths between 50 and 65 meters the composition is made in at least three sections (1), as the embodiment of figures 8 and 9.
- the width of the construction dimension is the blade results in the extreme area of the base of a dimension that exceeds the permissible measures for normal road transport, said wider part is in turn provided with an independent lateral section (12), according to figures 10 and 11 , so that for the transport said section (12) can also be decoupled, so that all the parts are within the transport measures under normal conditions.
- the blade is topped at the end with a metal tip (13), attached to which a conductive cable (14) is included inside the tube (2), so that the metal tip (13) acts as a lightning sensor , which are discharged through the cable (14) to a ground discharge manifold.
- a metal profile (15) which is attached to the metal tip (13), so that said profile (15) serves to discharge static electricity, in turn lightning collector, through the shed through the metal tip (13) and the cable (14) to the ground discharge manifold.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00929568A EP1184566A1 (en) | 1999-05-31 | 2000-05-26 | Aerogenerator blade |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ESP9901177 | 1999-05-31 | ||
ES009901177A ES2178903B1 (es) | 1999-05-31 | 1999-05-31 | Pala para aerogenerador. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000073651A1 true WO2000073651A1 (es) | 2000-12-07 |
Family
ID=8308628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2000/000187 WO2000073651A1 (es) | 1999-05-31 | 2000-05-26 | Pala para aerogenerador |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1184566A1 (es) |
ES (1) | ES2178903B1 (es) |
WO (1) | WO2000073651A1 (es) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101151458B (zh) * | 2005-03-31 | 2010-04-21 | 歌美飒创新技术公司 | 用于风力发电机的叶片 |
ES2342998A1 (es) * | 2009-01-19 | 2010-07-20 | Manuel Torres Martinez | Pala de aerogenerador. |
DE102006034831B4 (de) * | 2005-07-29 | 2011-03-31 | General Electric Co. | Verfahren und Vorrichtung zum Erzeugen von Windenergie mit vermindertem Geräusch der Windenergieanlage |
US7946803B2 (en) | 2003-04-28 | 2011-05-24 | Aloys Wobben | Rotor blade for a wind power system |
CN102146880A (zh) * | 2010-02-08 | 2011-08-10 | 国能风力发电有限公司 | 垂直轴风力发电机风轮的叶片结构 |
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DK1668246T3 (en) * | 2003-09-29 | 2015-01-19 | Vestas Wind Sys As | WINDOW LOCK PROTECTION SYSTEM FOR A WIND MILL |
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CN102606420B (zh) * | 2012-04-16 | 2014-12-10 | 国电联合动力技术有限公司 | 一种大型风力发电机及其分段式叶片 |
US9470205B2 (en) | 2013-03-13 | 2016-10-18 | Vestas Wind Systems A/S | Wind turbine blades with layered, multi-component spars, and associated systems and methods |
GB201311008D0 (en) * | 2013-06-20 | 2013-08-07 | Lm Wp Patent Holding As | A tribrid wind turbine blade |
US20150003991A1 (en) * | 2013-06-28 | 2015-01-01 | General Electric Company | Modular extensions for wind turbine rotor blades |
DE202016103595U1 (de) * | 2016-07-05 | 2017-10-06 | Peter Lutz | Rotorblatt und Rotor für Windkraftanlagen im Megawatt-Bereich |
DE102016113574A1 (de) * | 2016-07-22 | 2018-01-25 | Wobben Properties Gmbh | Windenergieanlagen-Rotorblatt und Windenergieanlagen-Rotorblattspitze |
DK3578807T3 (da) * | 2018-06-08 | 2024-01-02 | Siemens Gamesa Renewable Energy As | Fremgangsmåde til fremstilling af vindmøllerotorblade |
CN115163555B (zh) * | 2022-07-18 | 2024-02-13 | 江苏航宇航空装备制造有限公司 | 一种低温下使用的碳纤维叶片 |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7946803B2 (en) | 2003-04-28 | 2011-05-24 | Aloys Wobben | Rotor blade for a wind power system |
CN101151458B (zh) * | 2005-03-31 | 2010-04-21 | 歌美飒创新技术公司 | 用于风力发电机的叶片 |
DE102006034831B4 (de) * | 2005-07-29 | 2011-03-31 | General Electric Co. | Verfahren und Vorrichtung zum Erzeugen von Windenergie mit vermindertem Geräusch der Windenergieanlage |
KR101204212B1 (ko) | 2008-09-04 | 2012-11-26 | 미츠비시 쥬고교 가부시키가이샤 | 풍차 날개 |
ES2342998A1 (es) * | 2009-01-19 | 2010-07-20 | Manuel Torres Martinez | Pala de aerogenerador. |
WO2010081921A1 (es) * | 2009-01-19 | 2010-07-22 | Torres Martinez M | Pala de aerogenerador |
CN102146880A (zh) * | 2010-02-08 | 2011-08-10 | 国能风力发电有限公司 | 垂直轴风力发电机风轮的叶片结构 |
CN103119289A (zh) * | 2010-09-10 | 2013-05-22 | 乌本产权有限公司 | 可拆卸的转子叶片尖端 |
CN103119289B (zh) * | 2010-09-10 | 2016-02-10 | 乌本产权有限公司 | 可拆卸的转子叶片尖端 |
CN102797645A (zh) * | 2012-09-04 | 2012-11-28 | 河海大学常州校区 | 一种具有龙骨结构的风力机叶片 |
CN106270077A (zh) * | 2016-08-31 | 2017-01-04 | 三重型能源装备有限公司 | 蒙皮及风机叶片的制造方法、风机叶片 |
US11428204B2 (en) | 2017-10-24 | 2022-08-30 | Wobben Properties Gmbh | Rotor blade of a wind turbine and method for designing same |
Also Published As
Publication number | Publication date |
---|---|
EP1184566A1 (en) | 2002-03-06 |
ES2178903A1 (es) | 2003-01-01 |
ES2178903B1 (es) | 2004-03-16 |
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