CN108626069B - Wind power blade - Google Patents
Wind power blade Download PDFInfo
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- CN108626069B CN108626069B CN201710180172.5A CN201710180172A CN108626069B CN 108626069 B CN108626069 B CN 108626069B CN 201710180172 A CN201710180172 A CN 201710180172A CN 108626069 B CN108626069 B CN 108626069B
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- wing
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- 239000000853 adhesive Substances 0.000 claims description 27
- 230000001070 adhesive effect Effects 0.000 claims description 27
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 11
- 239000003365 glass fiber Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000003973 paint Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
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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
-
- 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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Abstract
The invention provides a wind power blade which is characterized by comprising a wing-shaped pressure surface and a wing-shaped suction surface which are oppositely arranged, wherein the wing-shaped pressure surface and the wing-shaped suction surface are correspondingly connected to form a front edge and a blunt tail edge, a turbulence assembly for improving the aerodynamic performance of the blade is arranged on the blunt tail edge, the turbulence assembly comprises a pressure plate and a suction plate which are oppositely arranged, one end of the pressure plate is arranged on the wing-shaped pressure surface, and one end of the suction plate is arranged on the wing-shaped suction surface. The invention has the advantages of improving the working reliability of the turbulent flow component, having strong universality and the like.
Description
Technical Field
The invention relates to the field of fan blades, in particular to a wind power blade.
Background
At present, in order to improve the aerodynamic performance of a wind turbine blade, a vortex generator is usually arranged on the surface of the blade of the existing wind turbine blade, and the load of the existing wind turbine blade is large, so that the existing wind turbine blade is easy to damage and destroy under extreme working conditions; meanwhile, the vortex generators are correspondingly arranged according to different curved surface shapes of the blades, and the installation positions and the size shapes of the vortex generators greatly influence the airflow around the blades, so that the position, the size and the shape of the vortex generators are required to be accurate, the cost is high, and the aerodynamic performance is easily influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a wind power blade which improves the working reliability of a turbulence component and has strong universality.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the utility model provides a wind-powered electricity generation blade, its characterized in that, includes the wing section pressure surface and the wing section suction surface of mutual disposition, the wing section pressure surface corresponds with the both ends of wing section suction surface and is connected formation leading edge and blunt trailing edge, be equipped with the vortex subassembly that improves blade aerodynamic performance on the blunt trailing edge, the vortex subassembly includes the pressure plate and the suction plate of mutual disposition, the one end of pressure plate install in on the wing section pressure surface, the one end of suction plate is installed on wing section suction surface.
As a further improvement of the above technical solution:
the flow disturbing assemblies are multiple groups, and the multiple groups of flow disturbing assemblies are sequentially arranged along the length direction of the blade.
Along blade length direction, the multiunit the vortex subassembly set up in the interlude at blunt trailing edge.
The turbulent flow component further comprises an enveloping component, the enveloping component is arranged at the other ends of the pressure plate and the suction plate, and two ends of the enveloping component are respectively arranged on the outer surfaces of the pressure plate and the suction plate.
The enveloping component is connected with the pressure plate and the suction plate through adhesives; the pressure plate and the suction plate are mounted on the blunt trailing edge through adhesives, and the thickness of the adhesives is 0.5-5 mm.
The thickness of the pressure plate and the suction plate is 2-5 m.
Pressure plate and suction plate all including install in the bonding portion of blunt trailing edge and extend the extension of blunt trailing edge, the contained angle theta of bonding portion and extension is 0 ~ 90.
The extension part has an extension length L1 which is 0.5-10% of the chord length L2 of the section of the blunt trailing edge airfoil; the bonding length of the bonding part is 50-80 mm.
The end part of the turbulent flow component connected with the blunt trailing edge is provided with glass fiber cloth for enhancing the connection strength of the turbulent flow component, and the glass fiber cloth is fixedly connected through structural adhesive.
The material of the turbulence component is the same as that of the airfoil pressure surface and the airfoil suction surface.
Compared with the prior art, the invention has the advantages that:
the turbulence component is arranged at the blunt trailing edge, so that the problem that the turbulence component is arranged on the surface of the blade to influence the flow of air flow is avoided, the damage and the damage of the turbulence component under extreme working conditions are reduced, the working reliability of the turbulence component is effectively improved, the influence of the turbulence component on the whole load of the blade is small, and the wind driven generator is not required to be reinforced; simultaneously, the vortex subassembly is including installing pressure plate and the suction plate on wing section pressure surface and wing section suction surface relatively, its simple structure, simple to operate, because pressure plate and suction plate are installed on pressure surface and suction surface for one end, it need not to change according to blade surface curvature, and the structural commonality is strong, applicable in the polymorphic type blade. The turbulent flow component further comprises an enveloping part, wherein the enveloping part is arranged at one end of the pressure plate and one end of the suction plate and wraps the outer surfaces of the pressure plate and the suction plate, so that the structural stability of the turbulent flow component is effectively enhanced, and the damage of external factors to the turbulent flow component under extreme working conditions is further avoided.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the spoiler assembly according to the present invention.
FIG. 3 is a schematic structural view of a blunt trailing edge airfoil of a wind turbine blade according to the present invention.
FIG. 4 is a schematic view of the mounting of the spoiler assembly with the blunt trailing edge according to embodiment 1 of the present invention.
FIG. 5 is a schematic view of the mounting of the spoiler assembly with the blunt trailing edge according to embodiment 2 of the present invention.
The reference numerals in the figures denote:
1. wind power blades; 11. an airfoil pressure face; 12. a wing suction surface; 13. a leading edge; 14. a blunt trailing edge; 15. a blade root; 16. a blade tip; 2. a spoiler assembly; 21. a pressure plate; 22. a suction plate; 23. an envelope member; 24. an adhesive portion; 25. an extension portion; 3. a binder; 4. glass fiber cloth; 5. and (4) structural adhesive.
Detailed Description
The invention will be described in further detail with reference to the drawings and specific examples of the description, which should not be construed as limiting the scope of the invention.
Example 1
Fig. 1 to 4 show an embodiment of a wind turbine blade according to the present invention, in which the wind turbine blade 1 includes an airfoil pressure surface 11 and an airfoil suction surface 12, the airfoil pressure surface 11 and the airfoil suction surface 12 are arranged oppositely, the airfoil pressure surface 11 is correspondingly connected with one end of the airfoil suction surface 12 to form a leading edge 13, the airfoil pressure surface 11 is correspondingly connected with the other end of the airfoil suction surface 12 to form a blunt trailing edge 14, when the wind turbine blade 1 rotates, the leading edge 13 leads, the blunt trailing edge 14 follows, and the air flow from the airfoil pressure surface 11 and the air flow from the airfoil suction surface 12 are combined at the blunt trailing edge 14. In this embodiment, be equipped with vortex subassembly 2 on blunt trailing edge 14, vortex subassembly 2 is used for improving the aerodynamic performance of blade, and vortex subassembly 2 includes pressure plate 21 and the suction plate 22 of relative arrangement, and the one end of pressure plate 21 is installed on airfoil pressure face 11, and the one end of suction plate 22 is installed on airfoil suction face 12. The turbulence component 2 is arranged at the blunt trailing edge 14, so that the problem that the turbulence member is arranged on the surface of the blade to influence the flow of air flow is avoided, the damage and the damage of the turbulence component 2 under extreme working conditions are reduced, the working reliability of the turbulence component 2 is effectively improved, the influence of the turbulence component 2 on the whole load of the blade is small, and the wind driven generator is not required to be reinforced; meanwhile, the spoiler assembly 2 comprises a pressure plate 21 and a suction plate 22 which are oppositely arranged on the airfoil pressure surface 11 and the airfoil suction surface 12, the structure is simple, the installation is convenient, the pressure plate 21 and the suction plate 22 are arranged on the pressure surface and the suction surface as one end, the replacement according to the curved shape of the surface of the blade is not needed, the structural universality is strong, and the spoiler assembly is applicable to various types of blades.
In the embodiment, the spoiler assemblies 2 are multiple groups, the multiple groups of spoiler assemblies 2 are sequentially arranged along the direction from the blade root 15 to the blade tip 16 (namely the length direction of the wind power blade 1), and the multiple groups of spoiler assemblies 2 are arranged in a segmented manner, so that the spoiler assemblies 2 can be conveniently and accurately installed and positioned at the blunt trailing edge 14, and the installation and subsequent maintenance efficiency of the spoiler assemblies 2 is effectively improved; in this embodiment, along blade length direction, multiunit vortex subassembly 2 sets up in the interlude of blunt trailing edge 14.
In this embodiment, the pressure plate 21 is bonded to the airfoil pressure surface 11 through the adhesive 3, the suction plate 22 is bonded to the airfoil suction surface 12 through the adhesive 3, and the thickness of the adhesive 3 is 3 mm.
In this embodiment, the thickness of the pressure plate 21 and the suction plate 22 is controlled to be 2-5m, so as to reduce the influence of the thickness of the spoiler assembly 2 on the aerodynamic performance of the blade. In this embodiment, the pressure plate 21 and the suction plate 22 both include the bonding portion 24 and the extension portion 25, the bonding portion 24 is used for connecting with the airfoil pressure surface 11 and the airfoil suction surface 12 of the wind turbine blade 1, in this embodiment, in order to ensure the bonding strength, the bonding length of the bonding portion 24 is 50-80 mm, which can prevent the pressure plate 21 and the suction plate 22 from shaking due to turbulence in the air flow; an extension 25 extends beyond the blunt trailing edge 14, the extension 25 serving to ensure aerodynamic performance of the blade.
As shown in fig. 3 and 4, in the present embodiment, the extension length L of the extension portion 251Is the section chord length L of the blunt trailing edge airfoil20.5% -10%, so that the extension part 25 can be adjusted in time according to the size of the wind power blade 1, and the pneumatic performance of the blade is ensured. In this embodiment, the bonding portion 24 and the extension portion 25 have an included angle θ of 30 °, and in other embodiments, the bonding portion 24 and the extension portion 25 may be selected from 0 to 90 °, so as to ensure the performance of the spoiler assembly 2.
In this embodiment, the tip that vortex subassembly 2 connects blunt trailing edge 14 sets up glass fiber cloth 4, and the both ends of glass fiber cloth 4 are connected with the surface of bonding portion 24 and the surface of blunt trailing edge 14 respectively, and glass fiber cloth 4 is used for strengthening vortex subassembly 2's joint strength, guarantees vortex subassembly 2's operational reliability, and glass fiber cloth 4 is fixed through structural adhesive 5. In this embodiment, the material of the spoiler assembly 2 is the same as the material of the airfoil pressure surface 11 and the airfoil suction surface 12, so that the lightning protection system of the wind turbine blade 1 is not required to be improved.
In this embodiment, the method for installing the spoiler assembly 2 includes the following steps: (1) cleaning the surface of the blunt trailing edge 14, wherein the surface is free from substances such as paint, putty and the like; (2) coating an adhesive 3 on the blunt trailing edge 14 bonding area of the airfoil pressure surface 11 and the pressure plate 21, and sequentially mounting the pressure plates 21 of each group of spoiler assemblies 2 along the length direction of the blade according to the mounting position; coating adhesive 3 on the blunt trailing edge 14 bonding area of the airfoil suction surface 12 and the suction plate 22, and sequentially mounting the suction plates 22 of each group of spoiler assemblies 2 along the length direction of the blade according to the mounting position; (3) after the binder 3 is completely cured, glass fiber cloth 4 is laid on the end parts, connected with the blunt trailing edges 14, of the pressure plate 21 and the suction plate 22 respectively for local reinforcement, and is connected through the structural adhesive 5, and after the structural adhesive 5 is cured, the wind power blade 1 is subjected to shape modification and paint coating.
Example 2
Fig. 5 shows another wind turbine blade embodiment of the present invention, which is substantially the same as the previous embodiment, except that the spoiler assembly 2 of the present embodiment further includes an enveloping member 23, the enveloping member 23 is disposed at one end of the pressure plate 21 and the end of the suction plate 22 away from the blunt trailing edge 14, and two ends of the enveloping member 23 are respectively mounted on the outer surfaces of the pressure plate 21 and the suction plate 22. The enveloping part 23 wraps the outer surfaces of the pressure plate 21 and the suction plate 22, so that the structural stability of the spoiler assembly 2 is effectively enhanced, and the damage of external factors to the spoiler assembly 2 under extreme working conditions is further avoided.
In the embodiment, the enveloping part 23 is connected with the pressure plate 21 and the suction plate 22 through the adhesive 3, and the thickness of the adhesive 3 is 0.5-5mm to ensure the bonding strength of the enveloping part 23; in the present embodiment, the envelope member 23 is a C-shaped envelope member 23.
In this embodiment, the method for installing the spoiler assembly 2 includes the following steps: (1) cleaning the surface of the blunt trailing edge 14, wherein the surface is free from substances such as paint, putty and the like; (2) coating an adhesive 3 on the blunt trailing edge 14 bonding area of the airfoil pressure surface 11 and the pressure plate 21, and sequentially mounting the pressure plates 21 of each group of spoiler assemblies 2 along the length direction of the blade according to the mounting position; coating adhesive 3 on the blunt trailing edge 14 bonding area of the airfoil suction surface 12 and the suction plate 22, and sequentially mounting the suction plates 22 of each group of spoiler assemblies 2 along the length direction of the blade according to the mounting position; (3) after the adhesive 3 is completely cured, the adhesive 3 is coated on the tail end of the pressure plate 21, and the end part of the pressure plate 21 is connected with the enveloping part 23; coating adhesive 3 on the tail end of the suction plate 22, and connecting the end part of the suction plate 22 with the envelope component 23; (4) glass fiber cloth 4 is laid at the end parts of the pressure plate 21 and the suction plate 22 connected with the blunt trailing edge 14 for local reinforcement, and is connected through structural adhesive 5, and after the structural adhesive 5 is solidified, the wind power blade 1 is subjected to shape modification and paint coating.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. A wind power blade is characterized by comprising a wing-shaped pressure surface and a wing-shaped suction surface which are oppositely arranged, wherein the wing-shaped pressure surface and the wing-shaped suction surface are correspondingly connected at two ends to form a front edge and a blunt tail edge, a spoiler assembly for improving the aerodynamic performance of the blade is arranged on the blunt tail edge and comprises a pressure plate and a suction plate which are oppositely arranged, one end of the pressure plate is arranged on the wing-shaped pressure surface, one end of the suction plate is arranged on the wing-shaped suction surface,
wherein, the turbulent flow component also comprises an enveloping part which is arranged at the other ends of the pressure plate and the suction plate, and the two ends of the enveloping part are respectively arranged on the outer surfaces of the pressure plate and the suction plate,
pressure plate and suction plate all including install in the bonding portion of blunt trailing edge with extend the extension of blunt trailing edge, the contained angle theta of bonding portion and extension is 0 ~ 90.
2. The wind turbine blade of claim 1, wherein the plurality of spoiler assemblies are arranged in a row along the length of the blade.
3. The wind turbine blade of claim 2, wherein along a length of the blade, a plurality of groups of the spoiler assemblies are disposed at the middle section of the blunt trailing edge.
4. The wind blade as set forth in claim 1, wherein said enveloping part is connected to the pressure plate and the suction plate by means of an adhesive; the pressure plate and the suction plate are mounted on the blunt trailing edge through adhesives, and the thickness of the adhesives is 0.5-5 mm.
5. The wind turbine blade as claimed in any one of claims 1 to 3, wherein the pressure and suction plates have a thickness of 2-5 m.
6. Wind turbine blade according to claim 5, wherein the extension length L of the extension part1The chord length L of the airfoil section of the blunt trailing edge20.5% -10%; the bonding length of the bonding part is 50-80 mm.
7. The wind power blade as claimed in any one of claims 1 to 3, wherein the end of the spoiler assembly connected with the blunt trailing edge is provided with a glass fiber cloth for enhancing the connection strength of the spoiler assembly, and the glass fiber cloth is fixedly connected through a structural adhesive.
8. The wind turbine blade as claimed in any one of claims 1 to 3, wherein the spoiler assembly is made of the same material as the airfoil pressure surface and the airfoil suction surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710180172.5A CN108626069B (en) | 2017-03-24 | 2017-03-24 | Wind power blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710180172.5A CN108626069B (en) | 2017-03-24 | 2017-03-24 | Wind power blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108626069A CN108626069A (en) | 2018-10-09 |
| CN108626069B true CN108626069B (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710180172.5A Active CN108626069B (en) | 2017-03-24 | 2017-03-24 | Wind power blade |
Country Status (1)
| Country | Link |
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| CN (1) | CN108626069B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379661A (en) * | 2018-12-29 | 2020-07-07 | 中材科技风电叶片股份有限公司 | Wind power blade, fan and wind power blade manufacturing method |
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| CN202023688U (en) * | 2011-02-19 | 2011-11-02 | 中国科学院工程热物理研究所 | Wind turbine blade with blunt trailing edge |
| CN102619677A (en) * | 2011-01-28 | 2012-08-01 | 通用电气公司 | Actuatable surface features for wind turbine rotor blades |
| CN102953926A (en) * | 2011-08-25 | 2013-03-06 | 通用电气公司 | Rotor blade assembly and method for adjusting loading capability of rotor blade |
| CN103711651A (en) * | 2012-09-28 | 2014-04-09 | 西门子公司 | Wind turbine rotor blade |
| EP2799710A1 (en) * | 2013-05-03 | 2014-11-05 | General Electric Company | Rotor blade assembly having vortex generators for wind turbine |
| CN105003391A (en) * | 2014-04-23 | 2015-10-28 | 西门子公司 | Flow deflection device of a wind turbine |
| CN105840415A (en) * | 2016-06-08 | 2016-08-10 | 无锡风电设计研究院有限公司 | Wind turbine blade and vortex generator mounting bars used in the wind turbine blade |
| CN205478093U (en) * | 2016-01-18 | 2016-08-17 | 中节能港建（甘肃）风力发电有限公司 | Vortex generator and installation vortex generator's wind -powered electricity generation blade |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8038407B2 (en) * | 2010-09-14 | 2011-10-18 | General Electric Company | Wind turbine blade with improved trailing edge bond |
| US8167554B2 (en) * | 2011-01-28 | 2012-05-01 | General Electric Corporation | Actuatable surface features for wind turbine rotor blades |
| DK177533B1 (en) * | 2012-05-25 | 2013-09-08 | Envision Energy Denmark Aps | Trailing edge tape |
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2017
- 2017-03-24 CN CN201710180172.5A patent/CN108626069B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619677A (en) * | 2011-01-28 | 2012-08-01 | 通用电气公司 | Actuatable surface features for wind turbine rotor blades |
| CN202023688U (en) * | 2011-02-19 | 2011-11-02 | 中国科学院工程热物理研究所 | Wind turbine blade with blunt trailing edge |
| CN102953926A (en) * | 2011-08-25 | 2013-03-06 | 通用电气公司 | Rotor blade assembly and method for adjusting loading capability of rotor blade |
| CN103711651A (en) * | 2012-09-28 | 2014-04-09 | 西门子公司 | Wind turbine rotor blade |
| EP2799710A1 (en) * | 2013-05-03 | 2014-11-05 | General Electric Company | Rotor blade assembly having vortex generators for wind turbine |
| CN105003391A (en) * | 2014-04-23 | 2015-10-28 | 西门子公司 | Flow deflection device of a wind turbine |
| CN205478093U (en) * | 2016-01-18 | 2016-08-17 | 中节能港建（甘肃）风力发电有限公司 | Vortex generator and installation vortex generator's wind -powered electricity generation blade |
| CN105840415A (en) * | 2016-06-08 | 2016-08-10 | 无锡风电设计研究院有限公司 | Wind turbine blade and vortex generator mounting bars used in the wind turbine blade |
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| Publication number | Publication date |
|---|---|
| CN108626069A (en) | 2018-10-09 |
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Effective date of registration: 20240115 Address after: 412007 Haitian Road, Tianyuan District, Zhuzhou, Hunan Province, No. 18 Patentee after: ZHUZHOU TIMES NEW MATERIAL TECHNOLOGY Co.,Ltd. Patentee after: National University of Defense Technology Address before: 412007 Haitian Road, Tianyuan District, Zhuzhou, Hunan Province, No. 18 Patentee before: ZHUZHOU TIMES NEW MATERIAL TECHNOLOGY Co.,Ltd. |