CN1982698A - 风力涡轮机转子叶片 - Google Patents
风力涡轮机转子叶片 Download PDFInfo
- Publication number
- CN1982698A CN1982698A CNA2006100641294A CN200610064129A CN1982698A CN 1982698 A CN1982698 A CN 1982698A CN A2006100641294 A CNA2006100641294 A CN A2006100641294A CN 200610064129 A CN200610064129 A CN 200610064129A CN 1982698 A CN1982698 A CN 1982698A
- Authority
- CN
- China
- Prior art keywords
- rotor blade
- carbon fiber
- flange part
- longitudinal length
- rotor
- 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.)
- Granted
Links
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 57
- 239000004917 carbon fiber Substances 0.000 claims abstract description 57
- 239000003365 glass fiber Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 20
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 57
- 239000000835 fiber Substances 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 abstract description 8
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 239000011152 fibreglass Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000004843 novolac epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 244000287680 Garcinia dulcis Species 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical group 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920003192 poly(bis maleimide) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- -1 venylesters Polymers 0.000 description 1
Images
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
- F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
-
- 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
- F05B2250/00—Geometry
- F05B2250/30—Arrangement of components
- F05B2250/31—Arrangement of components according to the direction of their main axis or their axis of rotation
- F05B2250/312—Arrangement of components according to the direction of their main axis or their axis of rotation the axes being parallel to each other
-
- 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
- F05B2280/2001—Glass
-
- 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
- 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
- F05B2280/70—Treatments or modification of materials
- F05B2280/702—Reinforcements
-
- 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
- F05C2203/02—Glass
-
- 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
-
- 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
- F05C2253/22—Reinforcements
-
- 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
Abstract
本发明涉及一种用于风力涡轮机(100)的转子叶片(140),包括配置为将转子叶片连接到转子轮毂(130)的法兰部分。该法兰部分由包含嵌入到基体材料(20)中的玻璃纤维(10)和碳纤维(15)的混合材料制成。碳纤维主要平行于该转子叶片的纵轴定向。
Description
技术领域
本发明总体上涉及一种风力涡轮机转子叶片,更具体地说,涉及一种用于将转子叶片连接到风力涡轮机的轮毂上的法兰。
背景技术
除了风力涡轮机转子叶片的空气动力学设计之外,转子叶片的质量和重量实质上是由叶片与转子轮毂的连接部分,即叶片根部区域的设计确定的。使叶片与转子轮毂的连接设计变得困难的问题是从转子叶片的纤维复合结构到转子轮毂的金属结构的载荷转移。这样一种载荷转移原则上是困难的,因为有关材料的特性极不相同。而且,转子载荷集中在叶片根部和转子轮毂上,这些载荷显示出高度动态的载荷谱。在传统风力涡轮机中,转子叶片的根部区域由玻璃纤维强化塑料制成。
发明内容
转子叶片用于风力涡轮机。转子叶片包括为将转子叶片连接至转子轮毂而设计的法兰部分。该法兰部分由一种包括嵌入基体材料中的玻璃纤维和碳纤维的混合材料构成。碳纤维定向大致为平行于转子叶片的纵轴。
附图说明
图1是风力涡轮机的示意图。
图2是风力涡轮机转子叶片的正视图。
图3是风力涡轮机转子叶片的法兰部分的视图。
图4是根据本发明的一个实施例的法兰部分中的T形螺栓连接的截面图。
图5是根据本发明的一个实施例的位于叶片根部和转子轮毂的法兰部分之间的T形螺栓连接的截面图。
图6是根据本发明的一个实施例的转子叶片壁的截面图。
图7是根据本发明的一个实施例中使用的混合玻璃纤维/碳纤维基体的截面图。
具体实施方式
以下对本发明的各实施例进行详细说明,这些实施例的一个或多个图示于附图中。每个实施例都是用以解释本发明,而不是为了限制本发明。例如,作为一个实施例的一部分来解释或描述的特征可被用于其它实施例或与其它实施例结合,从而形成另一个实施例。本发明包括这样的修改和变化。
图1是传统风力涡轮机100的示意图。风力涡轮机100包括塔架110,机舱120安装在塔架的顶端。装有三个转子叶片140的轮毂130安装在机舱120的侧端。
转子叶片140的基本结构如图2所示。其中,转子叶片140包括根部141,该根部用于将转子叶片140安装到轮毂130上。与根部141相对布置的是转子叶片140的尖端142。转子叶片140的主体部分143在根部141和尖端142之间延伸。
图3显示了从下方也就是从转子叶片140的根部141向尖端142看到的转子叶片的法兰部分。该法兰部分具有基本为圆形的横截面,外侧壁1411距转子叶片140的纵轴的半径为R1,内侧壁1412距转子叶片140的纵轴的半径为R2。因此,法兰部分的壁厚由R1-R2给定。该法兰部分还包括多个纵向孔1415。
纵向孔1415宽度为WH,以距离DH沿法兰部分的周向均匀分布。当转子叶片140安装在转子轮毂130上时,螺栓插入纵向孔1415中形成T形螺栓连接。
图4是叶片根部141的法兰部分1420的纵向横截面图。纵向孔1415基本上位于转子叶片140的外侧壁1411和内侧壁1412之间的中部。而且,侧壁上提供了径向孔1418。当转子叶片140安装在转子轮毂130上时,将横销(cross-bolt)插入径向孔1418从而与插入纵向孔1415的螺栓形成T形螺栓连接。
图5是形成在根部的法兰部分1420与转子轮毂130的法兰1310之间的横销连接的横截面图。其中,横销1419插入径向孔1418。横销1419包括与纵向孔1415对齐的内螺纹。并且,转子轮毂130的法兰1310邻靠于法兰部分1420的下边缘上。法兰1310具有与法兰部分1420的纵向孔1415配合的通孔。该通孔与纵向孔1415相互对齐,以便使螺栓1416能插入通孔和纵向孔1415。螺栓1416包括与交叉螺拴1419的内螺纹配合的外螺纹1417。螺栓1416通过螺旋紧固安装到横销1419上,从而建立一种横销连接。转子叶片140就这样固定在转子轮毂130上。
在上述螺栓连接布置中,转子轮毂130的法兰1310、横销1419和纵向螺栓1416由钢材制成。然而,法兰部分1420由纤维强化基体1410制成。根据本发明的一实施例,纤维强化基体1410是一种包括嵌入在基体中的玻璃纤维和碳纤维的混合材料。根据该示意性实施例,基体材料是环氧树脂和酚醛环氧树脂中的至少一种。根据本发明的另一实施例,基体材料是热固树脂。例如,象环氧树脂、酚醛环氧树脂、聚酯、venylesters、聚酰亚胺(浓缩和加成(addtion)型)、酚醛树脂以及双马来酰亚胺的热固树脂可用作基体材料。在使用中,根据混合基体应用的具体技术目的来选择特定的树脂。例如,考虑到为了生产具有所需的机械和环境性能的成品混合纤维强化部分而进行的特定纤维强化,对树脂系统进行选择。树脂通常在混入硬化剂/催化剂之后进行真空脱气,从而从液态树脂中消除或去掉所有夹杂的空气。示范性的树脂可以经过一定时间的加热真空压力循环环境而不会形成气泡或空穴。在这种基体材料中,碳和玻璃纤维是嵌入的,其中至少碳纤维的方向主要平行于转子叶片的纵轴。换句话说,碳纤维一般与转子叶片的纵向对齐,且碳纤维的纵向延伸基本平行于转子叶片的中轴。应当理解,此处上下文中的术语“基本平行”不表示所有碳纤维完全与转子叶片的纵轴对齐,而是表示大部分碳纤维的纵向延伸或多或少在转子叶片的纵轴方向上。一般来说,碳纤维以纤维垫的形式提供。然而,碳纤维也可以以无纺布或粗纺布的形式提供。在一替代实施例中,玻璃纤维的方向主要平行于转子叶片的纵轴,即玻璃纤维一般与转子叶片的纵向对齐。因此,玻璃纤维的纵向延伸基本平行于转子叶片的中轴。虽然玻璃纤维一般以纤维垫的形式提供,但其也可以无纺布或粗纺布的形式提供。
用这样的混合碳纤维/玻璃纤维强化基体形成的叶片根部的法兰部分增大了法兰部分的硬度,特别是横销1419和转子轮毂130的钢质法兰1310之间的夹紧部分的硬度。结果穿过法兰的T型螺栓连接的接合硬度提高了,从而减少了加在T型螺栓上的动态载荷。因此,该连接的临界疲劳强度得以提高。
而且,碳纤维提高了根部的法兰材料的断裂强度,从而使孔可以间隔得更靠近。也就是说,相邻纵向孔1415之间的间距DH比已知结构的减小,从而使沿着法兰部分周边的T型螺栓连接的数量比已知结构得以增加。因此,叶片与轮毂之间的静态强度和疲劳强度都提高了。
而且,置于法兰内的离轴碳纤维提高了法兰材料的承压强度。所以,用于T型螺栓连接的筒形螺母的尺寸得以减小,纵向孔1415的宽度WH也减小。结果,可沿着法兰部分的周边布置更多T型螺栓连接。这一点进一步提高了转子叶片140与转子轮毂130之间的连接的静态强度和疲劳强度。
此外,采用含碳纤维的法兰部分带来的根部-轮毂连接的载荷承压能力的提高允许减小根部直径R1、R2。因此,法兰1310和转子叶片140的根部141可用更少的材料制造,使得转子叶片更轻量化、更廉价。这样也就允许转子轮毂和倾斜轴承更轻量化、更廉价。
根据本发明的另一实施例,碳纤维的纵向长度基本与法兰部分的纵向长度相等。特别是在法兰部分包括横销连接之处碳纤维的纵向长度等于或大于横销连接的纵向长度。一般来说,碳纤维的纵向长度比横销连接的长度大得多,例如碳纤维的纵向长度从300mm左右到2500mm左右。
根据本发明的另一实施例,碳纤维的纵向长度朝径向向外方向增加。换句话说,纤维的长度随着与转子叶片的纵轴的距离增加而增加。因此,大约在半径R2处的最里面的碳纤维比大约在半径R1处的最外面的碳纤维要短。这样一种典型情况在图6中示出,其中显示了法兰部分的侧壁的纵向横截面图。转子叶片的根部末端包括纵向孔1415和径向孔1418。根据图6所示的实施例,内侧壁表面具有三个区域,分别是根部末端区1412、锥形区1413以及叶片侧面区1414。根部末端区1412的内半径R2小于叶片侧面区1414。锥形区1413连接根部末端区1412和叶片侧面区1414。在锥形区1413内,内半径R2从根部末端区1412向着叶片侧面区1414逐渐增大,从而形成两区域之间的光滑过渡。一般来说,内半径R2沿着锥形区1413的纵向长度线性增大。外侧壁1411的外半径R1在法兰部分1420的整个纵向长度上保持恒定。因此,法兰部分1420的壁厚在锥形区1413内在根部末端区1412的较大厚度与叶片侧面区1414的较小厚度之间变化。
图6也显示了碳纤维层40,该碳纤维层在一个实施例中一般为碳纤维垫的形式。在替代实施例中,碳纤维层40是以无纺布或粗纺布的形式形成。通常,碳纤维层40从法兰部分的根部末端向上延伸到锥形区1413的内表面。因此,这些层40中所含碳纤维的长度基本上等于锥形区1413的纵向长度。相应地,碳纤维的长度随着侧壁厚度的减小而增大。换句话说,纵向延伸碳纤维的长度取决于其与转子叶片纵轴之间的距离,其中长度随着距离成比例地增大。然而,应当注意到在位于锥形区1413之外的外壁部分的碳纤维外层42中碳纤维存在最大长度。通常,对碳纤维外层而言,碳纤维的长度不会向着外壁1411进一步增大而是基本上恒定。在本发明的本实施例中,玻璃纤维也以基本为纵向延伸的纤维垫的形式提供。因此,玻璃纤维也基本上平行于转子叶片的纵轴延伸。
根据本发明的另一实施例,锥形区1413不位于转子叶片内部,而是位于转子叶片外部。这一点通过交换图6中附图标记1411和1412可以很容易示范。那么,内半径R2是恒定的而外半径R1在锥形区内变化。根据本发明的又一实施例,锥形区位于转子叶片140的内部及外部。这个实施例中,外半径R1和内半径R2都在锥形区内改变。而且,碳纤维的纵向长度根据上述锥形区的纵向长度而改变。
图7是根据本发明的一实施例采用的混合玻璃纤维/碳纤维基体1410的横截面视图。其中,混合基体1410包括嵌入在基体材料20中的玻璃纤维10和碳纤维15。玻璃纤维10及碳纤维15以纤维垫的形式提供。玻璃纤维垫和碳纤维垫交替地叠放并嵌入基体材料中。因此,获得了交替形式的玻璃纤维层30和碳纤维层40。在图7所示的实施例中,每隔一层是碳纤维层40。然而,玻璃纤维与碳纤维之间的比例可以针对具体应用来调节。典型情况下,每第n层纤维垫是碳纤维垫,其中n一般在2到10之间。这样就获得了法兰部分内的玻璃纤维与碳纤维之间的恒定比例。
如上所述,本发明的示意性实施例包括风力涡轮机转子叶片,该叶片的根部配置为与风力涡轮机的转子轮毂相连。在转子叶片根部提供了法兰状的连接部分。该连接部分由包括嵌入到基体材料中的玻璃纤维和碳纤维的混合材料制成。碳纤维主要平行于转子叶片的纵轴定向。
通过用混合玻璃纤维/碳纤维基体形成转子叶片根部的法兰状连接部分,连接部分的硬度增强。因此,穿过连接部分的T形螺栓连接的连接硬度得到改进,从而使T形螺栓的动态载荷减小。特别是,由于碳纤维的高硬度使得纤维强化基体与T形螺栓之间的硬度比增强。因此,连接的临界疲劳强度得到改进。
而且,碳纤维增强了根部层状材料的破裂强度,从而允许T形螺栓的孔间隔得更接近。因此,T形螺栓连接的静态和疲劳强度得到改进。此外,碳纤维增强了根部材料的承压强度。这样,用于T形螺栓联接的筒形螺母的尺寸相比已知筒形螺母减小,从而使更多T形螺栓布置在连接部分。这样就进一步改进了叶片和轮毂之间的连接的静态和疲劳强度。同时,应用含碳纤维的法兰改进了根部-轮毂连接的载荷承受能力,这允许转子叶片的根部直径减小。因此,在一实施例中,法兰用更少材料制成,从而使转子叶片更轻更廉价。
本发明以多种具体实施例的形式进行描述,本领域技术人员应当意识到在权利要求书的精神和范围内本发明可通过修改来实行。
Claims (9)
1、一种用于风力涡轮机(100)的转子叶片(140),包括:
法兰部分(1420),其配置为将所述转子叶片连接到转子轮毂(130)上,所述法兰部分由包含嵌入到基体材料(20)中的玻璃纤维(10)和碳纤维(15)的混合材料制成,其特征在于,所述碳纤维大致平行于所述转子叶片的纵轴定向。
2、如权利要求1所述的转子叶片(140),其特征是,所述碳纤维(15)的纵向长度基本上等于所述法兰部分(1420)的纵向长度。
3、如权利要求1所述的转子叶片(140),其特征是,所述法兰部分(1420)包括横销连接,所述碳纤维(15)的纵向长度等于或大于所述横销连接的纵向长度。
4、如权利要求1所述的转子叶片(140),其特征是,所述碳纤维(15)的纵向长度随其与所述转子叶片的纵轴的距离而增大。
5、如权利要求1所述的转子叶片(140),其特征是,所述法兰部分(1420)的壁厚在锥形区内变化,所述碳纤维(15)的纵向长度基本上等于锥形区的纵向长度。
6、如权利要求1所述的转子叶片(140),其特征是,所述玻璃纤维(10)定向于与所述转子叶片的纵轴大致平行。
7、如权利要求1所述的转子叶片(140),其特征是,所述玻璃纤维(10)与所述碳纤维(15)之间的比例基本恒定。
8、如权利要求1所述的转子叶片(140),其特征是,所述玻璃纤维(10)与所述碳纤维(15)以交替堆积的纤维垫的形式提供。
9、如权利要求8所述的转子叶片(140),其特征是,每第n层纤维垫是碳纤维垫,其中n为2至10之间的整数。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/300,852 US7438533B2 (en) | 2005-12-15 | 2005-12-15 | Wind turbine rotor blade |
US11/300852 | 2005-12-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1982698A true CN1982698A (zh) | 2007-06-20 |
CN1982698B CN1982698B (zh) | 2012-01-11 |
Family
ID=37671939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2006100641294A Active CN1982698B (zh) | 2005-12-15 | 2006-12-15 | 风力涡轮机转子叶片 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7438533B2 (zh) |
EP (1) | EP1798412B1 (zh) |
CN (1) | CN1982698B (zh) |
BR (1) | BRPI0605694B1 (zh) |
DK (1) | DK1798412T3 (zh) |
ES (1) | ES2533004T3 (zh) |
MX (1) | MXPA06014917A (zh) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101776116A (zh) * | 2008-11-18 | 2010-07-14 | 通用电气公司 | 改进的柱体螺母 |
CN101817979A (zh) * | 2010-04-16 | 2010-09-01 | 煤炭科学研究总院重庆研究院 | 阻燃抗静电塑料法兰专用材料及其制备方法 |
CN102465844A (zh) * | 2010-11-04 | 2012-05-23 | 三一电气有限责任公司 | 一种风力发电机叶片 |
CN102666271A (zh) * | 2009-12-21 | 2012-09-12 | 通用电气公司 | 流体涡轮机转子叶片 |
CN102748246A (zh) * | 2012-07-19 | 2012-10-24 | 国电联合动力技术(连云港)有限公司 | 风机叶片与变桨轴承的连接结构 |
CN101435406B (zh) * | 2007-11-06 | 2013-05-01 | 通用电气公司 | 风力涡轮机叶片及其成形方法 |
CN106164474A (zh) * | 2014-04-07 | 2016-11-23 | 新风能工程解决方案公司 | 用于转子叶片的叶片联接部 |
CN113494483A (zh) * | 2020-03-20 | 2021-10-12 | 中国航发商用航空发动机有限责任公司 | 风扇叶片 |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7517198B2 (en) | 2006-03-20 | 2009-04-14 | Modular Wind Energy, Inc. | Lightweight composite truss wind turbine blade |
CN101725481A (zh) * | 2008-10-16 | 2010-06-09 | 米盖比 | 风力涡轮机叶片 |
US20100109309A1 (en) | 2008-10-30 | 2010-05-06 | Dirk-Jan Kootstra | Light weight beam and trailer |
GB2465167A (en) * | 2008-11-07 | 2010-05-12 | Vestas Wind Sys As | A turbine blade having mounting inserts of different lengths |
EP2358998B1 (en) | 2008-12-05 | 2017-09-20 | Vestas Wind Systems A/S | Efficient wind turbine blades, wind turbine blade structures, and associated systems and methods of manufacture, assembly and use |
DE102009009272B4 (de) * | 2009-02-17 | 2013-02-28 | Siemens Aktiengesellschaft | Qualitätsprüfung für Rotorblätter einer Windenergieanlage |
US8303882B2 (en) * | 2009-02-23 | 2012-11-06 | General Electric Company | Apparatus and method of making composite material articles |
US7851935B2 (en) * | 2009-08-11 | 2010-12-14 | Jason Tsao | Solar and wind energy converter |
US20110052404A1 (en) * | 2009-08-25 | 2011-03-03 | Zuteck Michael D | Swept blades with enhanced twist response |
US8207625B1 (en) | 2009-09-28 | 2012-06-26 | Constantine Gus Cristo | Electrical power generating arrangement |
EP2504569A2 (en) * | 2009-11-24 | 2012-10-03 | David E. Ronner | Wind turbine blade and methods, apparatus and materials for fabrication in the field |
IN2012DN01230A (zh) * | 2009-12-25 | 2015-04-10 | Mitsubishi Heavy Ind Ltd | |
JP2011137386A (ja) * | 2009-12-25 | 2011-07-14 | Mitsubishi Heavy Ind Ltd | 風車回転翼および風車回転翼の製造方法 |
US7937955B2 (en) * | 2010-01-08 | 2011-05-10 | Jason Tsao | Solar and wind hybrid powered air-conditioning/refrigeration, space-heating, hot water supply and electricity generation system |
CA2786561C (en) | 2010-01-14 | 2018-03-20 | Neptco, Inc. | Wind turbine rotor blade components and methods of making same |
US10137542B2 (en) | 2010-01-14 | 2018-11-27 | Senvion Gmbh | Wind turbine rotor blade components and machine for making same |
US9500179B2 (en) | 2010-05-24 | 2016-11-22 | Vestas Wind Systems A/S | Segmented wind turbine blades with truss connection regions, and associated systems and methods |
US8025485B2 (en) * | 2010-06-17 | 2011-09-27 | General Electric Company | Wind turbine blade attachment configuration with flattened bolts |
AT510694B1 (de) * | 2011-01-21 | 2012-06-15 | Hexcel Holding Gmbh | Modul zum halten von mindestens einer hülse |
DK2511477T3 (da) * | 2011-04-11 | 2014-09-01 | Lm Wp Patent Holding As | Vindmølle med overgangsområde |
US20120027609A1 (en) * | 2011-05-17 | 2012-02-02 | Prasad Ogde | Wind turbine rotor blade with precured fiber rods and method for producing the same |
GB201109412D0 (en) * | 2011-06-03 | 2011-07-20 | Blade Dynamics Ltd | A wind turbine rotor |
DK2592264T3 (en) | 2011-11-11 | 2015-04-13 | Nordex Energy Gmbh | Blade connection to a rotor blade of a wind turbine |
DE102011088025A1 (de) * | 2011-12-08 | 2013-06-13 | Wobben Properties Gmbh | Rotorblatt |
AT512432B1 (de) * | 2012-01-20 | 2016-06-15 | Andritz Hydro Gmbh | Rotorflügel für eine turbine |
KR101345716B1 (ko) | 2012-09-07 | 2013-12-27 | 삼성중공업 주식회사 | 풍력발전기용 결합 보조 장치 및 이에 의한 결합 방법 |
DK2920457T3 (en) * | 2012-11-14 | 2017-03-27 | Xemc Darwind Bv | A method of manufacturing a blade element |
DE102012111219B4 (de) | 2012-11-21 | 2016-06-16 | Spitzner Engineers GmbH | Windenergieanlagenkomponente |
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 |
US20140377072A1 (en) * | 2013-06-24 | 2014-12-25 | General Electric Company | Root stiffener for a wind turbine rotor blade |
WO2015155079A1 (de) | 2014-04-07 | 2015-10-15 | Wobben Properties Gmbh | Rotorblatt einer windenergieanlage |
EP3394430B1 (en) * | 2015-12-23 | 2021-09-01 | LM WP Patent Holding A/S | Wind turbine blades and related methods of manufacturing |
US10738759B2 (en) | 2017-02-09 | 2020-08-11 | General Electric Company | Methods for manufacturing spar caps for wind turbine rotor blades |
US10527023B2 (en) | 2017-02-09 | 2020-01-07 | General Electric Company | Methods for manufacturing spar caps for wind turbine rotor blades |
JP6475767B2 (ja) * | 2017-02-09 | 2019-02-27 | 三菱重工業株式会社 | 風車翼、及び風車翼の補強方法 |
US10677216B2 (en) | 2017-10-24 | 2020-06-09 | General Electric Company | Wind turbine rotor blade components formed using pultruded rods |
US11738530B2 (en) | 2018-03-22 | 2023-08-29 | General Electric Company | Methods for manufacturing wind turbine rotor blade components |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4247258A (en) * | 1978-11-13 | 1981-01-27 | United Technologies Corporation | Composite wind turbine blade |
US4408958A (en) * | 1980-12-23 | 1983-10-11 | The Bendix Corporation | Wind turbine blade |
DE3103710C2 (de) * | 1981-02-04 | 1983-03-24 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | "Rotor in Schalenbauweise" |
US4915590A (en) * | 1987-08-24 | 1990-04-10 | Fayette Manufacturing Corporation | Wind turbine blade attachment methods |
US4976587A (en) * | 1988-07-20 | 1990-12-11 | Dwr Wind Technologies Inc. | Composite wind turbine rotor blade and method for making same |
IL105107A (en) * | 1992-03-18 | 1996-06-18 | Advanced Wind Turbines Inc | Wind turbines |
DE4335221C1 (de) * | 1993-10-15 | 1995-03-16 | Deutsche Forsch Luft Raumfahrt | Rotorblatt für Windkraftanlagen |
US5660527A (en) * | 1995-10-05 | 1997-08-26 | The Wind Turbine Company | Wind turbine rotor blade root end |
DE19733372C1 (de) * | 1997-08-01 | 1999-01-07 | Aloys Wobben | Rotorblatt und Rotor einer Windenergieanlage |
DE19826086A1 (de) * | 1998-06-12 | 1999-12-16 | Mekra Lang Gmbh & Co Kg | Verfahren zum Herstellen eines Rotorblatts für Windkraftanlagen und Rotorblatt für Windkraftanlagen |
NL1013807C2 (nl) * | 1999-12-09 | 2001-07-05 | Aerpac Holding B V | Windturbinerotor, alsmede naaf en extender daarvoor. |
NL1015558C2 (nl) * | 2000-06-28 | 2002-01-08 | Stichting En Onderzoek Ct Nede | Blad van een windturbine. |
CA2454038C (en) * | 2001-07-19 | 2009-09-29 | Neg Micon A/S | Wind turbine blade |
DE10153683C1 (de) * | 2001-10-31 | 2003-05-22 | Aerodyn Eng Gmbh | Rotorwellen/naben-Einheit für eine Windenergieanlage |
DK175562B1 (da) * | 2002-03-19 | 2004-12-06 | Lm Glasfiber As | Vindmöllevinge med kulfibertip |
US7121795B2 (en) * | 2004-06-30 | 2006-10-17 | General Electric Company | Method and apparatus for reducing rotor blade deflections, loads, and/or peak rotational speed |
-
2005
- 2005-12-15 US US11/300,852 patent/US7438533B2/en active Active
-
2006
- 2006-12-14 EP EP06126116.0A patent/EP1798412B1/en active Active
- 2006-12-14 DK DK06126116T patent/DK1798412T3/en active
- 2006-12-14 ES ES06126116.0T patent/ES2533004T3/es active Active
- 2006-12-15 MX MXPA06014917A patent/MXPA06014917A/es active IP Right Grant
- 2006-12-15 BR BRPI0605694-6A patent/BRPI0605694B1/pt active IP Right Grant
- 2006-12-15 CN CN2006100641294A patent/CN1982698B/zh active Active
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101435406B (zh) * | 2007-11-06 | 2013-05-01 | 通用电气公司 | 风力涡轮机叶片及其成形方法 |
CN101776116A (zh) * | 2008-11-18 | 2010-07-14 | 通用电气公司 | 改进的柱体螺母 |
CN102666271A (zh) * | 2009-12-21 | 2012-09-12 | 通用电气公司 | 流体涡轮机转子叶片 |
CN101817979A (zh) * | 2010-04-16 | 2010-09-01 | 煤炭科学研究总院重庆研究院 | 阻燃抗静电塑料法兰专用材料及其制备方法 |
CN101817979B (zh) * | 2010-04-16 | 2012-03-21 | 煤炭科学研究总院重庆研究院 | 阻燃抗静电塑料法兰专用材料及其制备方法 |
CN102465844A (zh) * | 2010-11-04 | 2012-05-23 | 三一电气有限责任公司 | 一种风力发电机叶片 |
CN102748246A (zh) * | 2012-07-19 | 2012-10-24 | 国电联合动力技术(连云港)有限公司 | 风机叶片与变桨轴承的连接结构 |
CN106164474A (zh) * | 2014-04-07 | 2016-11-23 | 新风能工程解决方案公司 | 用于转子叶片的叶片联接部 |
CN106164474B (zh) * | 2014-04-07 | 2019-11-01 | 新风能工程解决方案公司 | 用于转子叶片的叶片联接部 |
CN113494483A (zh) * | 2020-03-20 | 2021-10-12 | 中国航发商用航空发动机有限责任公司 | 风扇叶片 |
CN113494483B (zh) * | 2020-03-20 | 2023-01-10 | 中国航发商用航空发动机有限责任公司 | 风扇叶片 |
Also Published As
Publication number | Publication date |
---|---|
BRPI0605694B1 (pt) | 2020-09-24 |
BRPI0605694A (pt) | 2007-10-16 |
US7438533B2 (en) | 2008-10-21 |
MXPA06014917A (es) | 2008-10-23 |
US20070140863A1 (en) | 2007-06-21 |
EP1798412A2 (en) | 2007-06-20 |
ES2533004T3 (es) | 2015-04-06 |
EP1798412B1 (en) | 2015-02-25 |
EP1798412A3 (en) | 2012-08-15 |
CN1982698B (zh) | 2012-01-11 |
DK1798412T3 (en) | 2015-03-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1982698B (zh) | 风力涡轮机转子叶片 | |
US7517194B2 (en) | Rotor blade for a wind turbine | |
CN101021202B (zh) | 风力涡轮机转子叶片的碳-玻璃混合型翼梁 | |
CN104769280B (zh) | 风力涡轮机塔架 | |
US7364407B2 (en) | Transition zone in wind turbine blade | |
CN103648754B (zh) | 具有渐细的根部套管的风力涡轮机叶片 | |
ES2658947T3 (es) | Pala de aerogenerador con medios de sujeción | |
US20100143142A1 (en) | Sparcap system for wind turbine rotor blade and method of fabricating wind turbine rotor blade | |
CN101265874A (zh) | 用于风轮机的叶片 | |
EP2187069A1 (en) | Improved Barrel Nut | |
CN102207059A (zh) | 风力涡轮机、塔架及其制造方法 | |
CN103747944B (zh) | 在其根部区域中具有伸长紧固部件的风力涡轮叶片 | |
CN108016055A (zh) | 一种使用拉挤预制件制造叶片根部的方法 | |
US20190024630A1 (en) | Embedding Element for a Wind Turbine Blade | |
US11668277B2 (en) | Wind turbine jointed rotor blade having a hollow chord-wise extending pin | |
US20130108454A1 (en) | Rotor blade | |
CN108138743B (zh) | 风能设备转子叶片和用于制造风能设备转子叶片的方法 | |
EP4330539A1 (en) | Root assembly of a wind turbine blade for a wind turbine, wind turbine blade and wind turbine | |
GB2401923A (en) | Composite torque disc with circumferential reinforcement |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20240221 Address after: Danish spirit Patentee after: LM Wind Power A/S Guo jiahuodiqu after: Dan Mai Address before: New York, United States Patentee before: General Electric Co. Guo jiahuodiqu before: Mei Guo |
|
TR01 | Transfer of patent right |