CN106121906A - 将构件安装到风力涡轮叶片的方法及风力涡轮叶片和构件 - Google Patents
将构件安装到风力涡轮叶片的方法及风力涡轮叶片和构件 Download PDFInfo
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Abstract
提供了一种用于将附加构件安装到风力涡轮叶片表面上的方法、以及附连有附加构件的叶片和作为独立装置的附加构件。在附加构件的压力侧表面或吸力侧表面的其中一个或这两者中限定槽。双面粘接带条的粘接面附连在风力涡轮叶片的表面或附加构件的内表面上,带条具有位于其相反的暴露面上的防粘衬里。带条沿着槽的一侧或两侧进行纵向设置,并且各个带条具有延展尾部,当构件保持在风力涡轮叶片表面上的所需位置时,延展尾部延伸出附加构件的边缘之外。延展尾部被沿着槽成角度地拉动,使得防粘衬里通过槽沿着带条的长度而被除去,同时保持附加构件在风力涡轮叶片表面上的所需位置。
Description
技术领域
本公开总地涉及风力涡轮转子叶片,更具体地说涉及一种用于将构件,例如顶端延展部分、小翼和涡流发生器附连到风力涡轮叶片上的系统和方法。
背景技术
风力被认为是其中一种目前可得到的最清洁、最环保的能源,并且风力涡轮在这方面已经获得日益增加的关注。现代风力涡轮通常包括塔、发电机、齿轮箱、吊舱和一个或多个转子叶片。转子叶片利用已知的翼片原理而捕获风的动能。转子叶片以旋转能量的形式传递动能,从而使轴旋转,轴将转子叶片联接在齿轮箱上,或者如果不使用齿轮箱则直接联接在发电机上。然后发电机将机械能转换成电能,其可部署到公用电网上。
在许多情况下,辅助构件附连在风力涡轮的转子叶片上,以便在风力涡轮的操作期间执行各种功能。例如,通过在叶片的表面上增加突出物或其它结构而改变风力涡轮转子叶片的空气动力特性是已知的,从而通过在减少阻力的同时增加叶片的升力而提高风力涡轮正常操作期间的能量转换效率。这种构件包括例如小翼、顶端延展部分和涡流发生器。这些装置的目的和操作原理对于本领域中的技术人员是很好理解的。
用于附连传统附加构件的安装技术和系统可为昂贵且费时的,尤其对于现场安装而言。例如,典型的现场安装技术需要使用附连固定器和极大的用于固化附连粘接剂的静止时间。粘接剂通常被认为是危险材料,并且必须采取合适的防护措施和保护措施(设备和人员)。另外,在将附加构件推送就位的同时,液体或粘接剂的拖尾效应可能导致不一致和不可预料的结果,尤其对于顶端延展附件,其在现场被推送到现有叶片的顶端上。
本行业已经认识到双面应变绝缘带为附连附加构件提供了相当大的好处,但这种带的使用已经被证明一旦带与配合面发生接触会由于瞬间粘合而对精确地安装构件(尤其大型构件)极具挑战性。如果不是不可能的话,部件的复位也可为很困难的。
美国专利出版物No.2014/0328692描述了一种涡流发生器附件,其安装在风力涡轮叶片的吸力侧或压力侧,并包括底座部分和从底座部分向上延伸的突出部件。附连层将底座部分连接到吸力侧或压力侧上。附连层具有比底座部分更低的抗剪模数,以容许在底座部分和下面的吸力侧或压力侧之间的切变滑移。附连层可为基于泡沫的条带部件,在其相反的对接面上具有粘接剂。例如,这个附连层可为非常高粘力(VHB™)或SAFT(太阳能丙烯泡沫带)的基于泡沫的条带材料。
因而,本行业持续地寻求用于在快速且低成本操作中将附加构件安装到风力涡轮叶片上的改进的方法,其还提供了复位机会,以确保精确的附加构件的安置。
发明内容
在以下描述中将部分地陈述,或者可从描述中明白,或者可通过本发明的实践学习到本发明的观点和优势。
根据本发明的方面,提供了一种用于将附加构件安装到风力涡轮叶片的表面上的方法。附加构件具有本体,其具有开口的翼展方向末端、压力侧表面和吸力侧表面。在附加构件的压力侧表面或吸力侧表面的其中一个或这两者中限定槽;
该方法包括将一个或多个双面粘接带条(这里被总称为“带条”)的粘接面附连到风力涡轮叶片的任一表面(压力侧表面或吸力侧表面)或附加构件的内表面上,其中带条在其相反的暴露面上具有防粘衬里。
各个带条具有防粘衬里的延展尾部,其在附加构件放置并保持在风力涡轮叶片的表面上的所需位置时延伸出附加构件的开口的翼展方向末端之外。这种延展尾部可为防粘衬里本身的延展部分或附连在防粘衬里上的另一构件(例如导线或丝线)。带条沿着槽的一侧或两侧而进行纵向设置。在附加构件保持在所需位置的条件下,沿着(例如穿过)槽成角度地拉动延展尾部,使得防粘衬里通过槽沿着带条的长度而被除去,同时保持附加构件在风力涡轮叶片的表面上的位置。通过这种方式,防粘衬里下面的粘接剂被暴露,并附连到风力涡轮叶片的表面或附加构件的表面上。如果需要,然后可从带条上裁剪延展尾部。
当附加构件滑动到风力涡轮叶片上并与风力涡轮叶片的一部分重叠时,例如当附加构件是顶端延展部分或小翼,并且槽是在附加构件中沿翼展方向延伸的槽时,上面的实施例是特别有用的。
在上面实施例的一种版本中,带条最初沿着槽的相反侧附连在附加构件上。因而,当防粘衬里通过槽(通过拉动延展尾部)被剥离附加构件时,防粘衬里下面的粘接剂就附连到风力涡轮叶片的表面上。
在另一实施例中,带条最初连接在风力涡轮叶片的表面上,位于与槽的相反侧相对应的位置。附加构件被挤压到带条上,并且通过槽将防粘衬里剥离叶片表面(通过拉动延展尾部),使得防粘衬里下面的粘接剂附连在附加构件的表面上。
实施例还可包括在带条之间或其邻近的区域中将额外的附连机构应用于附加构件和风力涡轮叶片的表面之间。额外的机构可为定位在带条之间或其附近的粘膏或液体、机械紧固件,例如钩环材料或一个或多个双面粘接带,其中防粘衬里从两侧都被除去,以便当附加构件放置在所需的位置时实现在附加构件和风力涡轮叶片的表面之间的最初定位粘合。
应该懂得本方法论并不局限于任何特定类型的附加构件的附连。例如,附加构件可为涡流发生器、顶端延展部分、小翼、前缘延展部分、后缘延展部分或锯齿状物、叶片防护物、扰流器、叶片表皮或仪器仪表的任何其中一个或其组合。
本发明包含根据这里所述的方法使风力涡轮叶片附连附加构件的任何方式。
本发明还包含作为独立装置以便后续附连到风力涡轮叶片顶端上的附加构件的各种实施例。附加构件可包括上面论述的或下面更详细描述的任何特征。
应该懂得这里所述的方法可利用许多不同的商业上可获得的双面粘接带来实现。这些带通常具有比附加构件的底座部分更低的抗剪模数,以容许在底座部分和下面的叶片表面之间的切变滑移。例如,带条可为基于泡沫的条带部件,其相反的对接面上具有粘接剂,例如非常高粘力(VHB™)或SAFT(太阳能丙烯泡沫带)的基于泡沫的条带材料。
技术方案1. 一种用于将附加构件安装到风力涡轮叶片表面上的方法,所述附加构件具有本体,其具有开口的翼展方向末端、压力侧表面和吸力侧表面,所述方法包括:
在所述附加构件的压力侧表面或吸力侧表面的其中一个或这两者中限定槽;
将一个或多个双面粘接带条的粘接面附连到所述风力涡轮叶片的表面或所述附加构件的内表面上,所述带条具有位于其相反的暴露面上的防粘衬里;
所述带条沿着所述槽的一侧或两侧进行纵向设置,并且所述带条中的各个具有延展尾部,当所述附加构件放置并保持在所述风力涡轮叶片表面上的所需位置时,所述延展尾部延伸出所述附加构件的边缘之外;且
在所述附加构件保持在所需位置时,沿着所述槽成角度地拉动所述延展尾部,使得所述防粘衬里沿着所述带条的长度通过所述槽而被除去,同时保持所述附加构件在所述风力涡轮叶片表面上的所需位置,从而使从所述防粘衬里下面暴露的粘接剂附连到所述风力涡轮叶片的表面或所述附加构件的表面上。
技术方案2. 根据技术方案1所述的方法,其特征在于,所述附加构件具有闭合的前缘、闭合的后缘,所述方法还包括使所述附加构件滑动到所述风力涡轮叶片的顶端上的所需位置上,使得所述附加构件与所述风力涡轮叶片的一部分重叠,并沿翼展方向从所述风力涡轮叶片的顶端延伸。
技术方案3. 根据技术方案2所述的方法,其特征在于,所述附加构件是顶端延展部分或小翼的其中一个。
技术方案4. 根据技术方案1所述的方法,其特征在于,所述槽是翼展方向槽,其从所述附加构件的开口的翼展方向末端延伸。
技术方案5. 根据技术方案1所述的方法,其特征在于,所述带条最初沿着所述槽的相反侧附连在所述附加构件上,并且其中在从所述带条上通过所述槽除去所述防粘衬里时,暴露的粘接剂从所述防粘衬里下面附连到所述风力涡轮叶片的表面上。
技术方案6. 根据技术方案1所述的方法,其特征在于,所述带条最初在与所述槽的相反侧相对应的位置附连到所述风力涡轮叶片的表面上,并且从所述带条上通过所述槽除去所述防粘衬里,从所述防粘衬里下面暴露的粘接剂附连到所述附加构件的表面上。
技术方案7. 根据技术方案1所述的方法,其特征在于,还包括在所述带条之间的区域中将额外的附连机构应用于所述附加构件和所述风力涡轮叶片的表面之间。
技术方案8. 一种其表面上附连有附加构件的风力涡轮叶片,包括:
风力涡轮叶片,其具有压力侧表面和吸力侧表面;
附加构件,其滑动到所述风力涡轮叶片上,并与所述压力侧表面和所述吸力侧表面重叠,所述附加构件具有限定在其中的翼展方向延伸的槽,其中所述风力涡轮叶片的压力侧表面或吸力侧表面的其中一个可通过所述槽来接近;和
至少一个双面粘接带条,其沿着所述槽的一侧或两侧而进行纵向设置,所述带条将所述附加构件粘合到所述压力侧表面或所述吸力侧表面的其中一个上。
技术方案9. 根据技术方案8所述的风力涡轮叶片,其特征在于,所述附加构件是叶片顶端延展部分或小翼的其中一个。
技术方案10. 根据技术方案8所述的风力涡轮叶片,其特征在于,所述槽定位在所述附加构件的闭合的前缘和闭合的后缘之间。
技术方案11. 根据技术方案8所述的风力涡轮叶片,其特征在于,还包括额外的附连机构,其在所述带条附近的区域中应用于所述附加构件和所述风力涡轮叶片的压力侧表面或吸力侧表面之间。
技术方案12. 根据技术方案8所述的风力涡轮叶片,其特征在于,所述附加构件包括本体,其具有开口的翼展方向末端、压力侧表面和吸力侧表面,所述槽在所述压力侧表面或所述吸力侧表面的其中一个中从所述开口的翼展方向末端延伸。
技术方案13. 根据技术方案12所述的风力涡轮叶片,其特征在于,还包括槽,其被限定在所述附加构件的压力侧表面和吸力侧表面中的各个中,所述槽沿翼展方向从所述附加构件的开口的翼展方向末端延伸。
技术方案14. 一种用于风力涡轮叶片的附加构件,包括:
本体,其具有压力侧表面和吸力侧表面、开口的翼展方向末端、闭合的前缘和闭合的后缘;
槽,其被限定在所述压力侧表面或所述吸力侧表面的其中一个或这两个中,所述槽沿翼展方向从所述开口的翼展方向末端延伸;且
其中所述附加构件可滑动到所述风力涡轮叶片的顶端上,从而在所述叶片顶端附近与所述风力涡轮叶片重叠,并沿翼展方向从所述叶片顶端延伸。
技术方案15. 根据技术方案14所述的附加构件,其特征在于,所述附加构件是叶片顶端延展部分或小翼的其中一个。
技术方案16. 根据技术方案14所述的附加构件,其特征在于,还包括槽,其被限定在所述附加构件的压力侧表面和吸力侧表面中的各个中,所述槽沿翼展方向从所述附加构件的开口的翼展方向末端延伸。
在参照以下描述和附属权利要求的条件下,本发明的这些以及其它的特征、方面和优点将变得更好理解。附图包含在本说明书中,并组成本说明书的一部分,其显示了本发明的实施例,并且与细节描述一起用于解释本发明的原理。
附图说明
在参照附图所做的说明书中为本领域中的普通技术人员阐述了本发明的完整且能够实施的发明公开,包括其最佳模式,其中:
图1是传统风力涡轮的透视图;
图2是根据本公开的具有附加构件的转子叶片组件的一个实施例的透视图;
图3。是根据本发明的各方面的装配在转子叶片顶端上的翼顶端延展部分形式的附加构件的局部顶视图;
图4是在后续组装步骤中的图3的实施例的局部顶视图;
图5是在又一组装步骤中的图4的实施例的局部顶视图;
图6是在又一组装步骤中的图5的实施例的局部顶视图;且
图7是在最终组装步骤中的图6的实施例的局部顶视图。
具体实施方式
现在将详细参考本发明的实施例,图中显示了其一个或多个示例。各个示例是作为本发明的说明,而非本发明的限制而提供的。实际上,本领域中的技术人员应该懂得,在不脱离本发明的范围或精神的条件下可在本发明中做出各种修改和变化。例如,作为一个实施例的一部分而被显示或被描述的特征可供另一实施例使用,从而产生又一实施例。因而,假如其在附属权利要求和其等效范围内的话,本发明意图覆盖这种修改和变化。
图1显示了传统结构的风力涡轮10。风力涡轮10包括塔12,其中吊舱14安装在塔上。多个叶片16安装在转子轮毂18上,转子轮毂18则连接在使主转子轴旋转的主凸缘上。风力涡轮发电和控制构件都封装在吊舱14中。图1的视图只是为说明性的目的而提供的,以便将本发明应用于典型的使用领域。应该懂得,本发明并不局限于任何特定类型的风力涡轮结构。
参照图2,显示了根据本发明的各方面的风力涡轮叶片组件100,其具有采用顶端延展部分形式的附加构件102,附加构件102附连在叶片16的表面24(例如吸力侧表面)上。叶片16具有在前缘26和后缘28之间延伸的压力侧22和吸力侧24,并从叶片的顶端32延伸至叶片根部34。叶片16进一步限定相对于转子轮毂18的变桨轴线40(图1),其通常垂直于转子轮毂18和叶片根部34而延伸穿过叶片根部34的中心。叶片16的桨距角或叶片桨距,即确定转子叶片16相对于流过风力涡轮10的气流穿透性的角度,可通过叶片16关于变桨轴线40的旋转来限定。
风力涡轮叶片组件100限定弦长42和跨度44。如图2中所示,弦长42可遍及转子叶片16的跨度44而变化。因而可在沿着跨度44的叶片16的任何点上限定叶片16的局部弦长。
应该懂得,根据本发明的各方面通过附连附加构件102而用于形成叶片组件100的本方法涉及将任何构件附连在叶片16的任何外表面上。该方法对于滑动到叶片顶端32上并至少与叶片16的压力侧表面22和吸力侧表面24的一部分相重叠的附加构件是特别有用的。例如,参照图3,附加构件102具有通常空心体104,其配置为叶片顶端延展部分115,具有开口的翼展方向末端103、闭合的前缘108和闭合的后缘107。附加构件包括吸力侧表面106和压力侧表面109。
图3(通过箭头)描绘了在翼展方向上线性滑动到叶片16上的附加构件102,应该懂得这种滑动可包括弦向分量。
参照图3至图7,附加构件102通常包括限定在其中的翼展方向槽120。该槽120可被限定在构件102的任何位置上。例如,在所示的实施例中,槽102被限定在构件102的压力侧表面109中,并沿翼展方向(例如纵向地)从开口的翼展方向末端103延伸。在某些实施例中,单个槽120被限定在压力侧表面109或吸力侧表面106中的任一个中。在其它实施例中,槽120可被限定在压力侧表面和吸力侧表面109,106中的各个中。槽120可被限定在附加构件102的前缘108和后缘107之间的任何位置。
参照图3,双面粘接带110最初在顶端32附近附连在叶片表面24上,使防粘衬里112保持附连在带条110的暴露面上。带条110设置在叶片表面24上,从而当附加构件102滑动到叶片顶端32上时,沿着槽120的一侧或两侧而沿翼展方向延伸,如图3和图4中所示。
各个带条110具有一定的长度,从而限定延展尾部113,延展尾部113沿翼展方向延伸出附加构件102的翼展方向末端103之外。延展尾部113的长度可变化。例如,同最靠近槽120的带条110相比,离槽120最远的带条110可能具有较长的延展尾部113,以促进拉动延展尾部通过槽120。延展尾部113可通过延伸出附加构件末端103之外的防粘衬里112的部分来限定。或者,延展尾部113可包含附连在防粘衬里112上的任何其它材料或构件,例如导线、细绳、条带等等。对于所示的实施例,因为延展尾部113包括防粘衬里112和下面的粘接剂,如图4中所示,在除去防粘衬里112之后,带粘接剂111的剩余粘接剂层保留下来,如图5和图6中,并可能需要进行裁剪。
在图5中,上边带条110上的防粘衬里112被剥离,然后被拉动通过槽120。防粘衬里112被在远离叶片表面24的方向上拉动通过槽120,直至从叶片顶端延展部分115下面的带条110的整个长度上除去防粘衬里112为止。应该懂得,当除去防粘衬里112时,粘接剂105在叶片顶端延展部分115附近暴露,然后将叶片顶端延展部分115被挤压到暴露的粘接剂上。
图6描绘了下边带条110的防粘衬里112被拉动通过槽120,直至从带条110的整个长度上除去防粘衬里112为止,如上面论述的那样暴露出粘接剂105。一旦对带条110的双面暴露出粘接剂105,叶片顶端延展部分115即可被牢固地挤压到叶片表面24上。
如图6中所示,在剥离防粘衬里112之后,带条110的暴露的粘接剂部分105将保留下来。这些暴露的粘接剂部分105可被裁剪,以便给予最终的组件,如图7中所示。
应该懂得,本方法还包含其中带条110沿着槽120的相反侧最初附连在附加构件102的内表面上的实施例。对于这种实施例,当防粘衬里从带条110上通过槽120进行去除时,从防粘衬里下面暴露的粘接剂将附连到风力涡轮叶片的表面上。
图3还描绘了可并入到这里所述的任何其它实施例中的附加方面。具体地说,图中描绘粘接剂116位于粘接带条110下面。在某些实施例中,可能需要覆盖叶片的表面,其中附加构件102将利用液体或膏状粘接剂(例如环氧树脂)116进行放置,例如以便在带条110定位在叶片表面24上之前补偿在叶片表面和附加构件102之间由于加工公差引起的任何表面不规则或不匹配。然后在粘接剂116固化之前可附连带条110和附加构件,这由于粘接剂116仍然处于液体或膏剂形式而提供了一定程度的附加构件102的定位调整。或者,在放置附加构件之前可容许粘接剂116(上面附连有带条)固化。在任一情况下,这个特定的实施例还赋予了通过粘接剂116提供强粘合以及通过带条110提供减少的剪应力的优势。
本发明包括风力涡轮叶片组件100的实施例,其包含如上所述进行附连的附加构件102。
本发明还包含作为独立装置以便后续附连到风力涡轮叶片上的附加构件102,附加构件102具有上述任一特征或组合特征。
应该懂得这里所述的方法可利用许多不同的商业上可获得的双面粘接带来实现。这些带通常具有比附加构件的底座部分更低的抗剪模数,以容许在底座部分和下面的叶片表面之间的切变滑移。例如,带条可为基于泡沫的条带部件,其相反的对接面上具有粘接剂,例如非常高粘力(VHB™)或SAFT(太阳能丙烯泡沫带)的基于泡沫的条带材料。
本说明书使用示例来公开本发明,包括最佳模式,并且还可使本领域中的技术人员实践本发明,包括制造和利用任何装置或系统,并执行任何所含方法。本发明可达到专利的范围由权利要求限定,并且可包括本领域中的技术人员想到的其它示例。如果这些其它示例包括并非不同于权利要求语言的结构元件,或者如果其包括与权利要求语言无实质差异的等效的结构元件,那么这些其它示例都属于权利要求的范围内。
Claims (10)
1.一种用于将附加构件安装到风力涡轮叶片表面上的方法,所述附加构件具有本体,其具有开口的翼展方向末端、压力侧表面和吸力侧表面,所述方法包括:
在所述附加构件的压力侧表面或吸力侧表面的其中一个或这两者中限定槽;
将一个或多个双面粘接带条的粘接面附连到所述风力涡轮叶片的表面或所述附加构件的内表面上,所述带条具有位于其相反的暴露面上的防粘衬里;
所述带条沿着所述槽的一侧或两侧进行纵向设置,并且所述带条中的各个具有延展尾部,当所述附加构件放置并保持在所述风力涡轮叶片的表面上的所需位置时,所述延展尾部延伸出所述附加构件的边缘之外;且
在所述附加构件保持在所需位置时,沿着所述槽成角度地拉动所述延展尾部,使得所述防粘衬里沿着所述带条的长度通过所述槽而被除去,同时保持所述附加构件在所述风力涡轮叶片的表面上的所需位置,从而使从所述防粘衬里下面暴露的粘接剂附连到所述风力涡轮叶片的表面或所述附加构件的表面上。
2.根据权利要求1所述的方法,其特征在于,所述附加构件具有闭合的前缘、闭合的后缘,所述方法还包括使所述附加构件滑动到所述风力涡轮叶片的顶端上的所需位置上,使得所述附加构件与所述风力涡轮叶片的一部分重叠,并沿翼展方向从所述风力涡轮叶片的顶端延伸。
3.根据权利要求2所述的方法,其特征在于,所述附加构件是顶端延展部分或小翼的其中一个。
4.根据权利要求1所述的方法,其特征在于,所述槽是翼展方向槽,其从所述附加构件的开口的翼展方向末端延伸。
5.根据权利要求1所述的方法,其特征在于,所述带条最初沿着所述槽的相反侧附连在所述附加构件上,并且其中在从所述带条上通过所述槽除去所述防粘衬里时,暴露的粘接剂从所述防粘衬里下面附连到所述风力涡轮叶片的表面上。
6.根据权利要求1所述的方法,其特征在于,所述带条最初在与所述槽的相反侧相对应的位置附连到所述风力涡轮叶片的表面上,并且从所述带条上通过所述槽除去所述防粘衬里,从所述防粘衬里下面暴露的粘接剂附连到所述附加构件的表面上。
7.根据权利要求1所述的方法,其特征在于,还包括在所述带条之间的区域中将额外的附连机构应用于所述附加构件和所述风力涡轮叶片的表面之间。
8.一种其表面上附连有附加构件的风力涡轮叶片,包括:
风力涡轮叶片,其具有压力侧表面和吸力侧表面;
附加构件,其滑动到所述风力涡轮叶片上,并与所述压力侧表面和所述吸力侧表面重叠,所述附加构件具有限定在其中的翼展方向延伸的槽,其中所述风力涡轮叶片的压力侧表面或吸力侧表面的其中一个可通过所述槽来接近;和
至少一个双面粘接带条,其沿着所述槽的一侧或两侧而进行纵向设置,所述带条将所述附加构件粘合到所述压力侧表面或所述吸力侧表面的其中一个上。
9.根据权利要求8所述的风力涡轮叶片,其特征在于,所述附加构件是叶片顶端延展部分或小翼的其中一个。
10.根据权利要求8所述的风力涡轮叶片,其特征在于,所述槽定位在所述附加构件的闭合的前缘和闭合的后缘之间。
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EP3091224A1 (en) | 2016-11-09 |
CN106121906B (zh) | 2019-12-17 |
DK3091224T3 (da) | 2019-10-14 |
US9869295B2 (en) | 2018-01-16 |
EP3091224B1 (en) | 2019-07-17 |
ES2751956T3 (es) | 2020-04-02 |
US20160327019A1 (en) | 2016-11-10 |
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