CN102734084A - Sectional blade of wind driven generator - Google Patents
Sectional blade of wind driven generator Download PDFInfo
- Publication number
- CN102734084A CN102734084A CN2012102127578A CN201210212757A CN102734084A CN 102734084 A CN102734084 A CN 102734084A CN 2012102127578 A CN2012102127578 A CN 2012102127578A CN 201210212757 A CN201210212757 A CN 201210212757A CN 102734084 A CN102734084 A CN 102734084A
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- blade
- driven generator
- connecting cylinder
- sections
- wind
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- 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
The invention belongs to components of wind power equipment, and relates to a blade of a wind driven generator, in particular to a sectional blade of a large wind driven generator. The blade of the wind driven generator is divided into more than two sections along a length direction, connecting barrels and connecting bars are embedded in connected end surfaces of the sections of the blade, embedding holes are formed in end surfaces of the sections of the blade and correspond to the connecting barrels and the connecting bars, and adhesives are filled in the embedding holes and in gaps of the connected end surfaces of the blade. Connecting parts are adhered through reinforced resin, section parting positions are reinforced by a secondary vacuum priming method or a manual reinforced resin coating method, and transition of the sections is realized. The sectional blade is simple in structure, and has the advantages that the sections of the blade can be transported in a detachable manner, the pneumatic appearance of the blade is attractive, the weight increase of the blade is lower than that of a non-sectional blade with the wing section, the safety factor is high, and the like.
Description
Technical field
The present invention relates to a kind of blade of wind-driven generator, especially the subsection blade of large-scale wind driven generator belongs to the wind power equipment parts.
Background technique
In order to improve Wind Power Utilization efficient; Present blade of wind-driven generator just develops towards the maximization direction; Length of blade increases gradually, and Denmark Vestas Vestas is released the V164-7MW blower fan at present, and rotor diameter reaches 164m; Fan blade reaches 80m, and more large-scale pneumatic equipment blades made is is researched and developed in the design.Yet the transportation department of countries in the world is from security consideration, for goods length with restriction is highly all arranged, with the transportation formation contradiction of overlength blade; On the other hand, for a lot of areas with a varied topography, to build the cost of road very expensive even can't transport for large-scale blade transportation.The transportation of large-scale blade becomes a great problem of restriction wind-powered electricity generation industry development, is the effective ways that solve this difficult problem and adopt subsection blade, segmentation production, segmentation transportation, assembled on site.
Patent documentation for subsection blade; Report less; It is to bond at connection part that existing subsection blade technology adopts; And adopt and to reinforce the connection at blade surface separately, or at segmentation place pre-embedded bolt, adopt bolted mode, there is the position a little less than the leaf quality increase is big, blade critical component beam cap carries load is distributed to other bearing capacitys in said method; Exist problems such as the Security, the blade aerodynamic loss that have reduced blade are big, therefore be necessary the wind-driven generator subsection blade is made improvement.
Summary of the invention
Technical problem to be solved by this invention provides a kind of segmented blade of wind-driven generator, and it is simple in structure, have segmentation transportation, aerodynamic configuration good, increase characteristics such as little, safety coefficient height with the non-segmentation leaf weight of aerofoil profile.
Solving the scheme that technical problem of the present invention adopted is: blade is divided into more than two sections along its length; Be embedded with connecting cylinder and pitman in each section of blade phase contact surface; Be provided with inlaid hole in the blade sections end face of the corresponding side of connecting cylinder and pitman, be filled with binder in the slit of contact surface mutually with blade in the inlaid hole.Each connection part is through powerful resin-bonded, and the method for sticking with paste powerful resin through secondary vacuum method for filling or hand again is the reinforcement of segmentation place position, realizes that the segmentation position crosses continuously.
Connecting cylinder adopts all-in-one-piece or split type structure, and interior beam cap and the web of connecting cylinder and blade is fixed together, and the join outer wall of end of blade interconnects through the housing connecting plate.
Connecting cylinder and pitman adopt and the blade identical materials, and the blade end continuous transition that joins becomes blade original design boundary dimension.
The reinforcement size is reserved in described wind-driven generator subsection blade segmentation place, and connection part finally resets into the Blade Design size through strengthening course, guarantees the good aerodynamic configuration of blade.
The invention has the beneficial effects as follows: (1) segmented blade is after factory building is manufactured; Can through connecting cylinder, housing connecting plate and pitman rear and front end blade beam cap be connected with web and blade shell in wind energy turbine set; Pass through secondary vacuum method for filling or hand formulating method again with the reinforcement of segmentation place position, realize that the segmentation position is excessive continuously; (2) adopt segmentation production, segmentation transportation, field erected mode for a varied topography, the area that has inconvenient traffic, greatly reduces the blade cost of transportation.
Description of drawings
Fig. 1 is a segmented blade structure for wind driven generator schematic representation of the present invention.
Fig. 2 is a segmented blade of wind-driven generator segmentation place schematic cross-sectional view of the present invention.
Fig. 3 is one of segmented blade of wind-driven generator connecting cylinder structural representation of the present invention.
Fig. 4 is two of segmented blade of wind-driven generator connecting cylinder structural representation of the present invention.
Each label of accompanying drawing is represented: 1-blade leading portion; 2-blade back segment; 3-beam cap; The 4-web; The 5-housing; The 6-connecting cylinder; 7-housing connecting plate; The 8-pitman; The 9-inlaid hole.
Embodiment
Referring to Fig. 1,2; The wind-driven generator subsection blade alongst can be divided into blade leading portion 1 and 2 two sections of blade back segments at least; The phase contact surface of each section of blade is embedded with connecting cylinder 6 and Duo Gen pitman 8; The blade of corresponding connecting cylinder 6 and Duo Gen pitman 8 is provided with inlaid hole 9, connects into whole blade of wind-driven generator through connecting cylinder 6, housing connecting plate 7, pitman 8 between blade leading portion 1 and the blade back segment 2, and wherein each parts all can adopt the composite material of lightweight.Blade of the present invention is implemented segmentation production; Segmentation place petiole end blade sections is embedded in corresponding link position with connecting cylinder 6 before matched moulds; Adopt brute force resin-bonded, each section of blade carried out the back and reserved reinforcement and bonding size in the joint, and other positions are by the completion of traditional blades finished product requirements of making.Each section of blade and each connected element are transported to the blade installation scene, adopt the blade assembly tool that blade is spliced.Connecting cylinder 6 the other ends and pitman 8 adopt powerful resin glue extrusion way to bond after being inserted in the inlaid hole 9, and after the blade bonding was good, beam cap 3 carried out the fiber lay down layer with the reinforcement district that the housing district reserves in the joint.After the fiber lay down layer finally reaches the design outline size of blade, adopt the secondary pouring method potting resin to carry out reinforcement, formed housing connecting plate 7, after reinforcement is accomplished,, scrape grey touch-up paint, finally be combined into an intact leaf the finishing of polishing of blade joint.Connecting cylinder 6 can adopt monolithic construction shown in Figure 3, or split-type structural shown in Figure 4, and connecting cylinder 6 is fixed together with interior beam cap 3 and the web 4 of blade, and housing connecting plate 7 is connected smoothly with blade leading portion 1 and blade back segment 2.
Claims (3)
1. segmented blade of wind-driven generator; It is characterized in that: blade is divided into more than two sections along its length; Be embedded with connecting cylinder and pitman in each section of blade phase contact surface; Be provided with inlaid hole in the blade sections end face of the corresponding side of connecting cylinder and pitman, be filled with binder in the slit of contact surface mutually with blade in the inlaid hole.
2. wind-driven generator subsection blade according to claim 1; It is characterized in that: connecting cylinder adopts all-in-one-piece or split type structure; Beam cap and web in connecting cylinder and the blade are fixed together, and the join outer wall of end of blade interconnects through the housing connecting plate.
3. wind-driven generator subsection blade according to claim 1 and 2 is characterized in that: connecting cylinder and pitman adopt and the blade identical materials, and the blade end continuous transition that joins becomes blade original design boundary dimension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102127578A CN102734084A (en) | 2012-06-26 | 2012-06-26 | Sectional blade of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102127578A CN102734084A (en) | 2012-06-26 | 2012-06-26 | Sectional blade of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
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| CN102734084A true CN102734084A (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102127578A Pending CN102734084A (en) | 2012-06-26 | 2012-06-26 | Sectional blade of wind driven generator |
Country Status (1)
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| CN (1) | CN102734084A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670953A (en) * | 2013-12-16 | 2014-03-26 | 江西省电力设计院 | Sectional wind turbine blade and assembling method thereof |
| CN105545614A (en) * | 2016-02-19 | 2016-05-04 | 彭伟成 | Generator blade and operation method thereof |
| CN105888964A (en) * | 2016-06-16 | 2016-08-24 | 三重型能源装备有限公司 | Wind-driven generator and combined blade thereof |
| CN107676232A (en) * | 2017-10-13 | 2018-02-09 | 中国科学院工程热物理研究所 | A kind of modularization wind turbine blade structure and its assembly method |
| EP2746574A3 (en) * | 2012-12-21 | 2018-02-21 | General Electric Company | Joints for connecting blade segments of a wind turbine rotor blade |
| CN108602343A (en) * | 2015-11-30 | 2018-09-28 | 维斯塔斯风力系统有限公司 | Wind turbine, wind turbine blade and the method for manufacturing wind turbine blade |
| CN111577528A (en) * | 2020-05-25 | 2020-08-25 | 湖南翰坤实业有限公司 | Wind power generation device and installation method of wind power generation blades |
| CN111791400A (en) * | 2020-04-30 | 2020-10-20 | 株洲时代新材料科技股份有限公司 | Wind power blade mold segmentation compatible design method |
| CN115839301A (en) * | 2022-06-22 | 2023-03-24 | 中材科技风电叶片股份有限公司 | Wind turbine sectional blade and assembling method and manufacturing method thereof |
| WO2023169027A1 (en) * | 2022-03-09 | 2023-09-14 | 中材科技风电叶片股份有限公司 | Blade, connecting assembly, and forming method for blade |
| CN115839301B (en) * | 2022-06-22 | 2024-04-19 | 中材科技风电叶片股份有限公司 | Wind turbine segmented blade and assembling method and preparation method thereof |
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| CN101457781A (en) * | 2007-12-13 | 2009-06-17 | 通用电气公司 | Wind blade joint bonding grid |
| CN201502483U (en) * | 2009-07-13 | 2010-06-09 | 浙江恒通机械有限公司 | Fan blade of wind turbine |
| CN101749181A (en) * | 2008-12-12 | 2010-06-23 | 通用电气公司 | Turbine blade and method of fabricating the same |
| CN202628407U (en) * | 2012-06-26 | 2012-12-26 | 昆明理工峰潮科技有限公司 | Sectional type wind driven generator blade |
| CN103038500A (en) * | 2010-05-24 | 2013-04-10 | 模组风能公司 | Segmented wind turbine blades with truss connection regions, and associated systems and methods |
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2012
- 2012-06-26 CN CN2012102127578A patent/CN102734084A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457781A (en) * | 2007-12-13 | 2009-06-17 | 通用电气公司 | Wind blade joint bonding grid |
| CN101749181A (en) * | 2008-12-12 | 2010-06-23 | 通用电气公司 | Turbine blade and method of fabricating the same |
| CN201502483U (en) * | 2009-07-13 | 2010-06-09 | 浙江恒通机械有限公司 | Fan blade of wind turbine |
| CN103038500A (en) * | 2010-05-24 | 2013-04-10 | 模组风能公司 | Segmented wind turbine blades with truss connection regions, and associated systems and methods |
| CN202628407U (en) * | 2012-06-26 | 2012-12-26 | 昆明理工峰潮科技有限公司 | Sectional type wind driven generator blade |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2746574A3 (en) * | 2012-12-21 | 2018-02-21 | General Electric Company | Joints for connecting blade segments of a wind turbine rotor blade |
| CN103670953A (en) * | 2013-12-16 | 2014-03-26 | 江西省电力设计院 | Sectional wind turbine blade and assembling method thereof |
| US11187203B2 (en) | 2015-11-30 | 2021-11-30 | Vestas Wind Systems A/S | Wind turbines, wind turbine blades, and methods for manufacturing wind turbine blades |
| CN108602343A (en) * | 2015-11-30 | 2018-09-28 | 维斯塔斯风力系统有限公司 | Wind turbine, wind turbine blade and the method for manufacturing wind turbine blade |
| CN105545614A (en) * | 2016-02-19 | 2016-05-04 | 彭伟成 | Generator blade and operation method thereof |
| CN105888964A (en) * | 2016-06-16 | 2016-08-24 | 三重型能源装备有限公司 | Wind-driven generator and combined blade thereof |
| CN107676232A (en) * | 2017-10-13 | 2018-02-09 | 中国科学院工程热物理研究所 | A kind of modularization wind turbine blade structure and its assembly method |
| CN107676232B (en) * | 2017-10-13 | 2024-03-26 | 中国科学院工程热物理研究所 | Modularized wind turbine blade structure and assembly method thereof |
| CN111791400B (en) * | 2020-04-30 | 2022-04-26 | 株洲时代新材料科技股份有限公司 | Wind power blade mold segmentation compatible design method |
| CN111791400A (en) * | 2020-04-30 | 2020-10-20 | 株洲时代新材料科技股份有限公司 | Wind power blade mold segmentation compatible design method |
| CN111577528A (en) * | 2020-05-25 | 2020-08-25 | 湖南翰坤实业有限公司 | Wind power generation device and installation method of wind power generation blades |
| WO2023169027A1 (en) * | 2022-03-09 | 2023-09-14 | 中材科技风电叶片股份有限公司 | Blade, connecting assembly, and forming method for blade |
| CN115839301A (en) * | 2022-06-22 | 2023-03-24 | 中材科技风电叶片股份有限公司 | Wind turbine sectional blade and assembling method and manufacturing method thereof |
| CN115839301B (en) * | 2022-06-22 | 2024-04-19 | 中材科技风电叶片股份有限公司 | Wind turbine segmented blade and assembling method and preparation method thereof |
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Application publication date: 20121017 |