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CN101070814A - 风力设备的转子叶片 - Google Patents

风力设备的转子叶片 Download PDF

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CN101070814A
CN101070814A CNA2007101234779A CN200710123477A CN101070814A CN 101070814 A CN101070814 A CN 101070814A CN A2007101234779 A CNA2007101234779 A CN A2007101234779A CN 200710123477 A CN200710123477 A CN 200710123477A CN 101070814 A CN101070814 A CN 101070814A
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rotor blade
rotor
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CN101070814B (zh
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艾劳埃斯·乌本
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D13/00Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/10Assembly of wind motors; Arrangements for erecting wind motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06Rotors
    • F03D1/065Rotors characterised by their construction elements
    • F03D1/0658Arrangements for fixing wind-engaging parts to a hub
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00Manufacture
    • F05B2230/60Assembly methods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/20Rotors
    • F05B2240/21Rotors for wind turbines
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/728Onshore wind turbines
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49316Impeller making
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49316Impeller making
    • Y10T29/49327Axial blower or fan
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49316Impeller making
    • Y10T29/49329Centrifugal blower or fan
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/4984Retaining clearance for motion between assembled parts

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)
  • Hydraulic Turbines (AREA)

Abstract

本发明涉及一种风力设备的转子叶片,其包括:一个转子叶片根部(25),一个转子叶片梢部(26),以及一个位于所述转子叶片根部(25)和转子叶片梢部(26)之间的中间转子叶片区域,其中所述转子叶片包括至少一个位于所述中间转子叶片区域的通孔(30、32),用于对所述转子叶片进行操纵。从而,可以简化转子叶片的安装以及提高转子叶片的可操纵性。

Description

风力设备的转子叶片
本申请是申请日为2004年1月20日、申请号为200480003525.5、名称为“安装转子叶片的方法及风轮机的转子叶片”的分案申请。
技术领域
本发明涉及一种用于风力设备的转子叶片。
背景技术
风力设备的转子叶片是众所周知的。随着风力设备尺寸的增加以及输出功率的增加,转子叶片的尺寸及其自身的重量也随之增加。因此,需要使用起重机来安装组件,起重机可以把具有增大自重的负载运输到更高处。因此,所需要的起重机也变大了。
发明内容
本发明的目的在于简化转子叶片的安装以及提高转子叶片的可操纵性。
通过如下所述的转子叶片的安装方法实现了本发明的目的。
把转子叶片安装至一个连接到风力设备吊舱的转子毂的方法包括以下步骤:
a)把所述的转子毂旋转到一个预定的第一位置处;
b)把一个第一转子叶片(21)沿水平方向安装到位于所述第一位置处的毂上;
c)通过所述的第一转子叶片(21)而把所述的转子毂转到一个预定的第二位置处;
d)把一个第二转子叶片(22)沿水平方向安装到位于所述第二位置处的毂上;
其中所述转子毂的旋转是沿着所述第一转子叶片(21)重力作用的方向实施的。
因此,哪怕把转子叶片安装至具有相对较高的转子毂的风力设备,也可以利用足以安装转子毂自身或吊舱的一个起重机来进行。
在本发明方法的一个特别有利的发展中,在安装第二转子叶片之前,将吊舱绕塔架轴转过180度。该步骤使得可以不改变起重机的位置而安装第二转子叶片,因为吊舱绕塔架轴的旋转意味着转子叶片的安装位置再次位于风力设备设有起重机的一侧。
在本方法的一个有利的发展中,通过第二转子叶片而把转子毂旋转至另一个预定的位置,吊舱绕塔架轴再次转过180度,安装第三转子叶片。
该安装第三转子叶片的方法也可以不改变起重机的位置,且因为省却了复杂和昂贵地改变起重机的位置的操作,所以可以省时地安装转子叶片。
为了可以特别简单和有效的方式促进毂的旋转,起重机可与转子叶片相接合、尤其优选地与一位于转子叶片中的通孔相接合,从而通过一个反向力而减慢转子叶片沿重力方向的旋转。由此,可以简单地对旋转进行安全的控制和影响。
进一步地,通过如下所述的风力设备的转子叶片实现了本发明的目的。所述转子叶片包括:一个转子叶片根部,一个转子叶片梢部,以及一个位于所述转子叶片根部和转子叶片梢部之间的中间转子叶片区域,其中所述转子叶片包括至少一个位于所述中间转子叶片区域的通孔,用于对所述转子叶片进行操纵。
为了提高转子叶片的可操纵性,在转子叶片的预定位置处,转子叶片具有至少一个通孔。其特别具有这样的优点:与已知的利用捆扎带和捆扎线缆的操纵方式相比较,可穿过转子叶片而进行接合的操作装置在使用过程中更为紧固且更为安全。
在一个优选实施方式中,转子叶片具有一个大致垂直于转子叶片纵轴方向延伸的通孔。由此,由于转子叶片中通孔的取向,可在大致水平的位置处以及在大致竖直的位置处对转子叶片进行操纵。
在一个特别有利的特征中,通孔在转子叶片的吸力侧和压力侧之间延伸,从而允许在大致水平的位置处对转子叶片进行操纵,所述的大致水平的位置与顺风收拢位置相近。在该情况下,风在转子叶片表面上的作用面积最小,从而,自然地,转子叶片受风影响的程度最小。
在本发明一个特别有利的发展中,在转子叶片纵轴方向的至少一个预定位置处,具有两个相互交叉的通孔,所述的通孔垂直于转子叶片的纵轴延伸,其使得可根据例如现场因素而灵活地对转子叶片进行操纵。
附图说明
以下参照附图对本发明更加详细地进行描述,其中:
图1示出了本发明转子叶片第一实施方式的侧视图;
图2示出了本发明转子叶片另一实施方式的侧视图;
图3示出了一个转子叶片通孔部分的简化剖视图;
图4示出了本发明转子叶片的简化剖视图,所述的转子叶片具有另一实施方式的通孔;
图5示出了依据本发明而安装转子叶片的方法的开始状态;
图6示出了依据本发明的方法的第一步骤;
图7示出了依据本发明的方法的第二步骤;
图8示出了依据本发明的方法的第三步骤;
图9示出了依据本发明的方法的第四步骤;
图10示出了依据本发明的方法的第五步骤;
图11示出了依据本发明的方法的第六步骤;
图12示出了依据本发明的方法的第七步骤;
图13示出了依据本发明的方法的第八步骤。
具体实施方式
图1中的平面图为转子叶片21的简化视图。转子叶片21沿纵向方向在转子叶片根部25和转子叶片梢部26之间具有两个通孔30、32。通孔32设置在转子叶片梢部26的区域中,而通孔30设置在靠近转子叶片根部的区域中。在此,这些位置如此确定:在把转子叶片安装到风力设备的转子毂时,需保证安全可靠地对转子叶片进行操纵。在确定孔30、32的位置时,同时也考虑了与转子叶片21的承载结构相关的连接装置。
图2示出了转子叶片21的另一实施方式,该转子叶片仅具有一个通孔30。此单个通孔30适当地设置在转子叶片的重心处,从而可以通过一操作装置对叶片进行安全的操纵。在此例中,自然地,也考虑到了与承载结构的连接。
具有多于两个通孔的实施方式也是可能的。
图3和4以例示的方式示出了通孔的可选实施方式。
图3示出了一圆柱形的通孔30、32,所述的通孔可通过适合的覆盖件而闭合。
图4示出了通孔30、32,所述的通孔在中部也是圆柱形的,但在邻近转子叶片21表面处的通孔30、32的端部是扩大的。该扩大部使得可以更好地接合闭合通孔30、32的覆盖件,从而,一方面可以防止污物和水分的进入,而在另一方面,通过与该表面齐平地插入的覆盖件而防止了转子叶片上的气流为孔所影响。可以考虑不同的已知可能的方式来固定这样的一个覆盖件(未示),例如底切结构、螺纹等等。
图5示出了依据本发明而把转子叶片安装到风力设备转子毂上的方法的开始状态。其优选地使用如图1和2所示的具有通孔的转子叶片。在其中以及在随后的图5-13中,以极其简化的方式示出了用于描述本发明的组件。由此,标号10指风力设备的塔架,12指吊舱的朝向,14指转子的圆形轨道,16、17和18给出了转子叶片连接装置的取向,而21、22和23指装配好了的转子叶片。
为了把转子叶片安装至风力设备吊舱的转子毂,在通孔30、32中固定了操作装置,从而可以通过所述装置以及起重机把转子叶片安全地向上运送到转子毂处。由于通孔在转子叶片的吸力侧和压力侧之间延伸,可以在一个水平的位置上安全地操纵转子叶片。在转子叶片中设置上述的通孔极大地简化了在下文中所描述的安装这些转子叶片的方法。
在图5中,沿观察方向,转子的圆形轨道14位于风力设备塔架10的后方,且转子叶片连接装置16、17、18位于12点钟、4点钟和8点钟处。
现在,在方法的第一步骤中,将转子毂移至一个预定位置处。此于图6中示出。在此,重要的是转子叶片连接装置17现在位于9点钟的位置上。相应的,转子叶片连接装置16现在位于1点钟的位置上而转子叶片连接装置18位于5点钟的位置上。
由此所得到的转子叶片连接装置17的方位使得转子叶片21可以沿水平方向装配到的转子叶片连接装置上。为此,转子叶片保持在一个需要的位置处。在下文的进一步描述中,预先假定具有该保持操作,且不再对其进一步明确指出。
在图7中示出了安装好第一转子叶片21之后的情形。在该处,转子叶片21位于9点钟的位置上,而转子叶片连接装置16和18分别位于1点钟和5点钟的位置上。
在图8中示出了接下来的方法步骤。在该处,转子叶片21下降至7点钟的位置。该下降运动可通过重力作用而实现。同时,把转子叶片21提升至安装位置的起重机(未示)可反作用于旋转运动,从而实现一个受控的旋转运动。
从这个图中也可以看出,现在,转子叶片连接装置18位于3点钟的位置上,而转子叶片连接装置16位于11点钟的位置上。
图9清楚地示出:转子毂的位置没有改变,而吊舱绕塔架轴转过180度的角度,从而使得转子的圆形轨道14沿着观察方向位于塔架10的前方。由于该吊舱绕塔架轴的旋转运动,转子叶片21现在位于5点钟的位置上,而转子叶片连接装置16位于1点钟的位置上,转子叶片连接装置18位于9点钟的位置上。从而,另一个由起重机提升至水平位置的转子叶片现在可以装配到该转子叶片连接装置18上,且起重机不需要改变位置。
然后就导致了如图10所示的情形。在该处,转子叶片连接装置16仍然位于1点钟的位置上,第一转子叶片21现在位于5点钟的位置上,而第二转子叶片22现在位于9点钟的位置上。
然后,为了对第三转子叶片的安装进行准备,如图11所示,通过起重机使转子叶片21枢转离开5点钟的位置而到达7点钟的位置。因而,第二转子叶片22移至11点钟的位置,而转子叶片连接装置16移至3点钟的位置上。然后,吊舱再一次绕塔架轴旋转180度。
在图12中示出了该旋转运动的结果。从观察者的视角来说,转子的圆形轨道14现在又位于塔架10的后方。因而,转子毂的位置没有改变,第一转子叶片21位于5点钟的位置上,第二转子叶片22位于1点钟的位置上,而转子叶片连接装置16位于9点钟的位置上。由此,第三转子叶片可以再一次地装配到该转子叶片连接装置16上而起重机不需要改变位置。这显示于图13中。第一转子叶片21位于5点钟的位置上,第二转子叶片22位于1点钟的位置上,而第三转子叶片23位于9点钟的位置上。从而,本发明的方法终止,且所有的三个转子叶片都安装到了风力设备上。

Claims (7)

1.一种风力设备的转子叶片,其包括:
一个转子叶片根部(25),
一个转子叶片梢部(26),以及
一个位于所述转子叶片根部(25)和转子叶片梢部(26)之间的中间转子叶片区域,
其中所述转子叶片包括至少一个位于所述中间转子叶片区域的通孔(30、32),用于对所述转子叶片进行操纵。
2.如权利要求1所述的转子叶片,其中所述至少一个通孔(30、32)在所述转子叶片(21、22、23)的吸力侧和压力侧之间延伸。
3.如权利要求1所述的转子叶片,其中所述至少一个通孔(30、32)大致垂直于所述转子叶片的纵轴延伸。
4.如权利要求2所述的转子叶片,其中所述至少一个通孔(30、32)在所述转子叶片(21、22、23)的吸力侧和压力侧之间延伸。
5.如权利要求1所述的转子叶片,其中至少两个彼此交叉的通孔(30、32)大致垂直于转子叶片的纵轴延伸。
6.如权利要求1至5中任一项所述的转子叶片,其中所述至少一个通孔(30、32)大致呈圆柱形且具有扩大的端部。
7.如权利要求6所述的转子叶片,其特征在于设置有一个用于闭合所述通孔(30、32)的能够释放的覆盖件。
CN2007101234779A 2003-02-10 2004-01-20 风力设备的转子叶片 Expired - Fee Related CN101070814B (zh)

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