WO2022007610A1 - 一种带凹型结构的风电叶片用轻量化主梁及制作、主梁结构组合、风电叶片及其制作方法 - Google Patents
一种带凹型结构的风电叶片用轻量化主梁及制作、主梁结构组合、风电叶片及其制作方法 Download PDFInfo
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Abstract
Description
Claims (22)
- 一种带凹型结构的风电叶片用轻量化主梁,其特征在于,所述轻量化主梁整体呈凹槽状,包括位于轻量化主梁两翼的支撑部(32)和连接两支撑部(32)的中间连接部(36);所述支撑部(32)和中间连接部(36)连接形成的一个拼接面为一整体平面,该整体平面的形状配置成与风电叶片的上壳体(1)或下壳体(2)的内侧保持一致以形成抵靠;所述支撑部(32)和中间连接部(36)连接形成的另一个拼接面为一凹槽状非连续平面,该凹槽状非连续平面形成的定位槽(34)配置成与风电叶片的腹板(5)的端部保持一致以形成抵靠嵌套。
- 根据权利要求1所述的带凹型结构的风电叶片用轻量化主梁,其特征在于,所述中间连接部(36)的截面呈梯形状,其增强体是多层增强纤维布由梯形的上底面到下底面依次叠加而成,且各增强纤维布叠加后形成的增强体的横截面呈现梯形状。
- 根据权利要求2所述的带凹型结构的风电叶片用轻量化主梁,其特征在于,所述增强纤维布为碳纤维布,增强体是由幅宽相等的碳纤维布错层铺设而形成梯形状截面。
- 根据权利要求1所述的带凹型结构的风电叶片用轻量化主梁,其特征在于,所述支撑部(32)的厚度大于中间连接部(36),且将中间连接部(36)的侧面包覆形成一倒梯形凹槽。
- 根据权利要求2所述的带凹型结构的风电叶片用轻量化主梁,其特征在于,所述支撑部(32)的外侧拐角处设置有一斜面(37)。
- 根据权利要求1-5任一项所述的带凹型结构的风电叶片用轻量化主梁,其特征在于,所述支撑部(32)的增强材料主要由BALSA木、PVC、PET、HPE中的任意一种或多种组成,所述支撑部(32)、中间连接部(36)通过树脂灌注一体成型。
- 一种如权利要求1-6任一项所述的带凹型结构的风电叶片用轻量化主梁的制作方法,其特征在于,包括以下步骤:第一步:在主梁模具上铺设中间连接部(36)的增强材料,使所述中间连接部(36)的增强体呈现梯形状,使增强体的梯形下底面抵靠在主梁模具面上;第二步:在所述中间连接部(36)的增强体的两侧放置支撑部(32)的增强材料,使所述支撑部(32)的增强材料包覆住所述增强体的梯形侧面,进而形成一能与后期的风电叶片腹板(5)的端部相配合的定位槽(34),得到增强材料复合体;第三步:通过树脂灌注工艺,将上述步骤得到的增强材料复合体进行一体灌注,最终制作成型出风电叶片用轻量化主梁。
- 根据权利要求7所述的带凹型结构的风电叶片用轻量化主梁的制作方法,其特征在于,所述铺设中间连接部(36)的增强材料的方法具体包括:由幅宽相等的碳纤维布层(91)错层铺设;每层碳纤维布错层的尺寸为L,第一层距主梁模具左端(33)的距离为D,第二层 距主梁模具左端(33)的距离为D+L,直至错层至第N层时,第N层距主梁模具右端(35)的距离回到D。
- 一种风电叶片用的轻量化主梁结构组合,其特征在于,包括腹板(5)与两根风电叶片用轻量化主梁,所述风电叶片用轻量化主梁为凹形主梁,两根凹形主梁包括压力面轻量化主梁(3)和吸力面轻量化主梁(4):在所述压力面轻量化主梁(3)和吸力面轻量化主梁(4)上的一侧均设置有纵向的定位结构,所述腹板(5)的两端分别通过一定位配合结构与所述压力面轻量化主梁(3)和吸力面轻量化主梁(4)的定位结构连接,并与压力面轻量化主梁(3)和吸力面轻量化主梁(4)固接成一整体。
- 根据权利要求9所述的轻量化主梁结构组合,其特征在于,所述定位结构和定位配合结构选用凹槽配合定位方式,所述定位结构和定位配合结构中其中一个设置为定位槽(34),另一个则设置为与定位槽(34)配合的插入件。
- 根据权利要求10所述的轻量化主梁结构组合,其特征在于,所述凹槽配合定位方式选用以下任意一种:所述定位槽(34)为一设置在压力面轻量化主梁(3)和吸力面轻量化主梁(4)上的梯形凹槽,且所述插入件为一设置在腹板(5)两端且与所述梯形凹槽相配合的上脚板(51)和下脚板(52);所述定位槽(34)为一设置在压力面轻量化主梁(3)和吸力面轻量化主梁(4)上的V形槽,且所述插入件为一设置在腹板(5)两端的定位凸筋。
- 一种轻量化风电叶片,其特征在于,包括上壳体(1)、下壳体(2)以及权利要求9-11任一项所述的轻量化主梁结构组合,所述风电叶片轻量化主梁结构组合的一端连接上壳体(1),另一端连接下壳体(2),所述风电叶片轻量化主梁结构组合与上壳体(1)、下壳体(2)固接成一整体;所述上壳体(1)和下壳体(2)的两端对应连接形成前缘(6)及后缘(7)。
- 根据权利要求12所述的轻量化风电叶片,其特征在于,所述腹板(5)和后缘(7)组成的后缘腔体内布置有后缘腹板(8)。
- 根据权利要求13所述的轻量化风电叶片,其特征在于,所述后缘腹板(8)沿叶片长度方向的起点(61)设置在距叶根(63)距离12%-15%的叶片总长区域,后缘腹板(8)沿叶片长度方向的终点(62)设置在距叶根(63)距离57%-60%的叶片总长区域;所述后缘腹板(8)的高度小于所述腹板(5)的高度,且与腹板(5)基本平行。
- 如权利要求12-14中任一项所述的轻量化风电叶片,其特征在于,所述上壳体(1)、下壳体(2)采用抗压、抗剪力学的复合材料,所述复合材料包括芯材及其上表面和下表面粘 敷的玻纤织物(86);所述芯材将夹芯板材(9)作为支持体,在夹芯板材(9)内开辟路径放置纤维束,通过浸胶工艺,在夹芯板材(9)内形成垂向纤维胶柱(81)、斜向纤维胶柱(82)、纵向纤维胶筋(83)和横向纤维胶筋(84),且斜向纤维胶柱(82)、纵向纤维胶筋(83)和横向纤维胶筋(84)在夹芯板材(9)内形成纵横交织一体粘接的井字形栅围(85);所述夹芯板材(9)上表面和下表面粘敷的玻纤织物(86)与垂向纤维胶柱(81)、井字形栅围(85)粘接形成一整体架构。
- 如权利要求15所述的轻量化风电叶片,其特征在于,所述夹芯板材(9)材料主要由BALSA木、PVC、PET、HPE中的任意一种或多种组成;所述玻纤织物(86)主要采用碳玻复合材料,所述碳玻复合材料由碳纤维和玻纤混杂设计,质量比为10-90∶10-90。
- 如权利要求12-14中任一项所述的轻量化风电叶片,其特征在于,所述轻量化风电叶片还包括防雷系统,所述防雷系统包括覆盖在上壳体(1)和/或下壳体(2)表面的碳纤维布层(91)、至少一层的金属带(93)和连接整机防雷系统的引下线(96),所述碳纤维布层(91)将雷电导流至所述金属带(93),所述金属带(93)通过导线与所述引下线(96)连接。
- 如权利要求17所述的轻量化风电叶片,其特征在于,所述碳纤维布层(91)通过至少一层的附加碳纤维布层(92)将雷电导流至所述至少一层的金属带(93);所述碳纤维布层(91)的宽度根据碳纤维材料的导流承载能力选取,以雷电流通过碳纤维布层(91)不损伤碳纤维布层(91)为最低要求。
- 如权利要求18所述的轻量化风电叶片,其特征在于,所述附加碳纤维布层(92)设置有多层,所述金属带(93)设置有多层,且多层的附加碳纤维布层(92)与多层的金属带(93)交替设置,使雷电通过多层的附加碳纤维布层(92)分散到多层的金属带(93)并最终导流至所述引下线(96);各附加碳纤维布层(92)的叠加面积一致,各附加碳纤维布层(92)完全覆盖金属带(93)。
- 如权利要求17所述的轻量化风电叶片,其特征在于,所述碳纤维布层(91)从叶尖铺设至叶根(63),所述金属带(93)与碳纤维布层(91)的连接位点位于风电叶片叶片长度方向距离叶根(63)30%以内的区域,通过一体灌注连接在叶片上。
- 如权利要求17所述的轻量化风电叶片,其特征在于,所述金属带(93)穿过叶片壳体伸入叶片腔体内拧成一股,通过并线装置(95)与导线连接,上下两根导线通过导线并线装置(94)和引下线(96)连接;所述引下线(96)与整机防雷系统在叶根(63)处连接。
- 一种轻量化风电叶片的制作方法,其特征在于,包括以下步骤:第一步:将开设有定位槽(34)的压力面轻量化主梁(3)和吸力面轻量化主梁(4)分别与上壳体(1)和下壳体(2)固接为一体;第二步:将与下壳体(2)固接为一体的吸力面轻量化主梁(4)朝上放置,在下壳体(2)的定位槽(34)内涂结构胶;将腹板(5)吊装到吸力面轻量化主梁(4)上,使腹板(5)的下脚板(52)插入涂有结构胶的定位槽(34)内,实现腹板(5)在吸力面轻量化主梁(4)上的定位与固定;第三步:在腹板(5)的上脚板(51)外表面涂结构胶,将上壳体(1)连同与上壳体(1)固接的压力面轻量化主梁(3)吊装到腹板(5)的上方,放下上壳体(1)和压力面轻量化主梁(3),使腹板(5)的上脚板(51)插入压力面轻量化主梁(3)的定位槽(34)内,通过涂刷的结构。
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US17/599,735 US20220186708A1 (en) | 2020-07-07 | 2021-06-17 | Lightweight spar cap with concave structure for wind turbine blade and manufacturing method thereof, spar cap structure combination, wind turbine blade and manufacturing method thereof |
MX2021012722A MX2021012722A (es) | 2020-07-07 | 2021-06-17 | Tapa de mastil de peso ligero con estructura concava para aspa de turbina eolica y metodo de fabricacion de esta, combinacion de la estructura de tapa de mastil, aspa de turbina eolica y metodo de fabricacion de estas. |
BR112021021927A BR112021021927A2 (pt) | 2020-07-07 | 2021-06-17 | Tampa leve com estrutura cônica para lâmina de turbina de vento e método de fabricação da mesma, combinação de estrutura de tampa, lâmina de turbina de vento e método de fabricação da mesma |
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CN202110614148.4A CN113263732B (zh) | 2020-07-07 | 2021-06-02 | 一种带凹型结构的风电叶片用轻量化主梁及制作、主梁结构组合、风电叶片及其制作方法 |
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CN113374628A (zh) * | 2021-06-02 | 2021-09-10 | 株洲时代新材料科技股份有限公司 | 一种风电叶片用轻量化主梁、主梁制作方法、风电叶片及其制作方法 |
CN113787658B (zh) * | 2021-09-10 | 2022-06-14 | 常州市宏发纵横新材料科技股份有限公司 | 模块化风电叶片及其制造方法 |
CN114962134A (zh) * | 2022-03-31 | 2022-08-30 | 振石集团华智研究院(浙江)有限公司 | 一种风电叶片用结构增强件及风电叶片 |
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