CN108138743A - 风能设备转子叶片和用于制造风能设备转子叶片的方法 - Google Patents
风能设备转子叶片和用于制造风能设备转子叶片的方法 Download PDFInfo
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Abstract
本发明涉及一种具有转子叶片部段(210)的风能设备转子叶片,所述转子叶片部段具有内转子叶片部段(210),所述内转子叶片部段具有第一端部(211)和第二端部(212),所述第一端部具有多个固定单元(220),用于在风能设备的毂上进行固定,并且所述第二端部具有法兰,用于固定风能设备转子叶片的另外的部段,其中内转子叶片部段(210)由聚合物混凝土制造,其中转子叶片部段(210)具有多个树脂浸渍的且围绕内转子叶片部段(210)缠绕的纤维复合织物或粗纱(240)。
Description
技术领域
本发明涉及风能设备转子叶片和用于制造风能设备转子叶片的方法。
背景技术
风能设备的转子叶片通常由纤维复合材料、即例如GFK或CFK制造。在此,例如能够制造两个半壳并且随后彼此粘贴或以不同的方式相互固定。半壳例如能够以真空注射法或灌注法制造。
原则上,在风能设备的转子叶片技术的领域中,对于转子叶片的毂侧的端部件提出特别的稳定性要求,因为所述端部件负责转子叶片到风能设备的毂中的力导入。在此,尤其出现尤其高的静态和动态的负荷。
WO 2014/072120 A1公开一种用于制造风能设备转子叶片的半成品的方法。半成品通过缠绕树脂浸渍的织物来制造。
在作为优先权基础的德国专利申请中,德国专利商标局提到如下文件作为现有技术:DE 10 2010 019 666 A1、DE 29 21 152 C2、WO 2014/072120 A1、DE 10 2010 002 432A1和DE 1 045 810 A。
发明内容
本发明的所基于的目的是:提出一种改进的风能设备转子叶片以及一种用于制造风能设备转子叶片的改进的方法。
所述目的通过根据权利要求1的风能设备转子叶片以及通过根据权利要求6的用于制造风能设备转子叶片的方法来实现。
本发明涉及一种具有转子叶片部段的风能设备转子叶片,所述转子叶片部段具有转子叶片内部段,所述转子叶片内部段具有第一端部和第二端部,所述第一端部具有多个固定单元,用于在风能设备的毂上进行固定,并且所述第二端部具有法兰,用于固定风能设备转子叶片的另外的部段。内转子叶片部段由聚合物混凝土制造。
根据本发明的另一方面,转子叶片部段具有多个树脂浸渍的且围绕内转子叶片部段缠绕的纤维复合织物或粗纱。
根据本发明的另一方面,内转子叶片部段具有至少一个带,所述带借助于纤维复合织物包住。
根据本发明的另一方面,内转子叶片部段内部空心地构成,并且具有波状的内轮廓。
本发明同样涉及用于制造风能设备转子叶片的方法。转子叶片部段由聚合物混合土制造。由聚合物混合土制造的转子叶片部段用作为缠绕轴并且用树脂浸渍的纤维复合织物围绕缠绕轴缠绕。
本发明涉及如下思想:通过缠绕来至少制造转子叶片的一部分。对此所需的缠绕轴能够由聚合物混凝土制造,并且缠绕轴能够为制成的风能设备转子叶片的一部分。因此,缠绕轴保留在风能设备转子叶片中。借此,省去对至此所使用的可分开的钢轴的至今为止所必需的脱模。此外,能够降低转子叶片的重量。聚合物混凝土的使用改进转子叶片的循环利用能力。
缠绕轴能够由聚合物混凝土浇筑或者旋制。可选地,在此,能够共同浇筑或旋制具有预制的螺纹嵌件的法兰或完整的金属法兰。借此,能够部分地或完全地取消后续的机械加工。除此之外,例如为后缘区段能够共同浇筑其他的连接螺纹嵌件。
将聚合物混凝土构件用作为缠绕轴能够降低成本以及减少制造时间。
本发明的其他的设计方案是从属权利要求的主题。
附图说明
下面,参考附图详细阐述本发明的优点和实施例。
图1示出根据本发明的风能设备的示意图,
图2示出风能设备转子叶片部段的示意图,
图3示出图2的转子叶片部段的横截面,
图4示出图2的转子叶片部段的示意立体图,和
图5示出根据本发明的内转子叶片部段的示意横截面。
具体实施方式
图1示出具有塔102和吊舱104的风能设备100。在吊舱104上设置有转子106,所述转子具有三个转子叶片200和导流罩110。转子106在运行时通过风置于旋转运动从而驱动吊舱104中的发电机。根据本发明的转子叶片200具有内转子叶片部段210。
图2示出风能设备转子叶片部段的示意图。在图2中示出内转子叶片部段210,所述内转子叶片部段具有第一端部211,所述第一端部可选地具有多个螺栓220。借助螺栓220,根据本发明的转子叶片200能够固定在风能设备的毂上。转子叶片部段210具有第二端部212,所述第二端部具有法兰,转子叶片的另外的部段能够固定在所述法兰上。
图3示出图2的转子叶片部段的横截面。内转子叶片部段的横截面是椭圆形的或圆形的。
图4示出图2的转子叶片部段的示意立体图。
根据本发明,由聚合物混凝土制造内转子叶片部段210。聚合物混凝土的主组成部分能够为由粒度不同的干燥的砂和/或精细研磨的或粉末状的石英和粘结的合成树脂构成的混合物。此外,较大的石头、例如基于花岗岩的石头同样能够设置在聚合物混凝土中。通过混合由玻璃或碳构成的短纤维能够选择聚合物混凝土的强度特性。在此,应实现填料的良好的堆积和压缩。
根据本发明的一个方面,聚合物混凝土由50%的粗砂(等效直径0.63至2mm),15%中砂(等效直径0.2-0.63mm),10%石英粉(等效直径0.063至0.2mm),5%短纤维(玻璃纤维),纤维长度约20至30mm(丝直径和浆液约19μm)和20%(树脂-/固化剂混合物)合成树脂,例如基于环氧树脂的双组分树脂体系或热塑性树脂体系或固化剂制造。其他百分比分布同样是可行的。
能够由所述组成部分制造内转子叶片部段210。所述内转子叶片部段能够在制造风能设备的转子叶片时作为缠绕芯或缠绕轴使用。所述缠绕芯或缠绕轴能够在转子叶片运行期间承担多种结构上的任务(即例如防屈曲支撑)。缠绕轴因此保留在风能设备的转子叶片中。
根据本发明的一个方面,在内转子部段210的端部上能够设有法兰211、212。所述法兰能够浇筑在聚合物混凝土中。
为了制造根据本发明的风能设备转子叶片,因此将由聚合物混凝土构成的内转子叶片部段用作为缠绕轴。这通过浇筑或旋制聚合物混凝土来实现,借此制造的部段用作为缠绕轴并且纤维复合织物或粗纱能够在树脂中浸渍并且随后围绕缠绕轴缠绕,以便制造半成品,所述半成品成为转子叶片的一部分。
根据本发明,例如同样能够直接共同包住法兰和转子叶片接口。
聚合物混凝土在高的化学品抗性、密封性、抗老化性、减震特性和其动态强度方面是有利的。
根据本发明,通过将内转子叶片部段用作为缠绕芯减小机械再加工,其中所述缠绕芯由聚合物混凝土构成并且具有已经***的法兰。此外,能够实现更有利的填料。此外,也可以通过更有效的材料嵌件降低重量。
根据本发明,由聚合物混凝土能够制造内转子叶片部段。所述内转子叶片部段能够在振动的情况下浇筑或旋制(旋制混凝土)。转子叶片部段在制造转子叶片之后保留在转子叶片中并且可选地能够用作防屈曲支撑件。此外,转子叶片部段能够用作为缠绕轴。
根据本发明的一个方面,内面能够光滑地构成、具有肋片或在环周和纵向方向上波状地构成。
根据本发明的一个方面,转子叶片部段具有由钢、GFK、CFK构成的预制的法兰、钢***件或金属螺纹套。所述法兰、钢***件或金属螺纹套尤其能够在制造内转子叶片部段时共同浇筑或共同旋制。
根据本发明的另一方面,内部或外部能够共同缠绕主带或副带(抽吸侧、压力侧、前侧和端棱)。例如,在内转子叶片部段的轮廓中能够共同浇筑或设置凹部。通过将凹部设置在内转子叶片部段的外轮廓中,能够粘入或粘上构件,使得存在用于缠上加强材料的光滑的外轮廓。
图5示出根据本发明的内转子叶片部段的示意横截面图。根据本发明的由聚合物构成的内转子叶片部段210尤其空心地构成并且能够在内部中在横截面中具有波状的内轮廓213。内转子叶片部段210的聚合物混凝土可选地能够具有凹部214,带230能够安置到所述凹部中。可选地,内转子叶片部段以及带230还能够通过树脂浸渍的纤维复合织物240缠绕。
Claims (6)
1.一种风能设备转子叶片,其具有
转子叶片部段(210),所述转子叶片部段具有内转子叶片部段(210),所述内转子叶片部段具有第一端部(211)和第二端部(212),所述第一端部具有多个固定单元(220),用于在风能设备的毂上进行固定,并且所述第二端部具有法兰,用于固定所述风能设备转子叶片的另外的部段,
其中所述内转子叶片部段(210)由聚合物混凝土制造,
其中所述转子叶片部段(210)具有多个树脂浸渍的且围绕所述内转子叶片部段(210)缠绕的纤维复合织物或粗纱(240)。
2.根据权利要求1所述的风能设备转子叶片,其中
所述内转子叶片部段(210)具有至少一个带(230),所述带借助于所述纤维复合织物(240)包住。
3.根据权利要求1或2所述的风能设备转子叶片,其中
所述内转子叶片部段(210)内部空心地构成,并且具有波状的内轮廓(230)。
4.根据权利要求1至3中任一项所述的风能设备转子叶片,其中
所述内转子叶片部段(210)用作为缠绕芯或缠绕轴,
其中缠绕的所述纤维复合织物(240)围绕所述缠绕芯或缠绕轴缠绕。
5.一种风能设备,其具有根据权利要求1至4中任一项所述的风能设备转子叶片。
6.一种用于制造风能设备转子叶片的方法,所述方法具有如下步骤:
由聚合物混合土制造转子叶片部段(210),
将所述转子叶片部段(210)用作为缠绕轴,
用树脂浸渍的纤维复合织物或粗纱(240)缠绕所述缠绕轴。
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DE102015117437.5 | 2015-10-14 | ||
DE102015117437.5A DE102015117437A1 (de) | 2015-10-14 | 2015-10-14 | Windenergieanlagen-Rotorblatt und Verfahren zum Herstellen eines Windenergieanlagen-Rotorblattes |
PCT/EP2016/074654 WO2017064226A1 (de) | 2015-10-14 | 2016-10-14 | Windenergieanlagen-rotorblatt und verfahren zum herstellen eines windenergieanlagen-rotorblattes |
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US (1) | US10711763B2 (zh) |
EP (1) | EP3362679B1 (zh) |
JP (1) | JP6648268B2 (zh) |
CN (1) | CN108138743B (zh) |
BR (1) | BR112018007325A2 (zh) |
CA (1) | CA3001396C (zh) |
DE (1) | DE102015117437A1 (zh) |
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CA3001396A1 (en) | 2017-04-20 |
BR112018007325A2 (pt) | 2018-10-30 |
WO2017064226A1 (de) | 2017-04-20 |
CN108138743B (zh) | 2020-06-05 |
JP2018530705A (ja) | 2018-10-18 |
CA3001396C (en) | 2020-05-26 |
US20180298877A1 (en) | 2018-10-18 |
US10711763B2 (en) | 2020-07-14 |
EP3362679B1 (de) | 2020-06-10 |
EP3362679A1 (de) | 2018-08-22 |
DK3362679T3 (da) | 2020-08-03 |
DE102015117437A1 (de) | 2017-04-20 |
JP6648268B2 (ja) | 2020-02-14 |
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