CN108953074A - A kind of wind electricity blade vortex generator - Google Patents
A kind of wind electricity blade vortex generator Download PDFInfo
- Publication number
- CN108953074A CN108953074A CN201810923713.3A CN201810923713A CN108953074A CN 108953074 A CN108953074 A CN 108953074A CN 201810923713 A CN201810923713 A CN 201810923713A CN 108953074 A CN108953074 A CN 108953074A
- Authority
- CN
- China
- Prior art keywords
- vortex
- wind electricity
- electricity blade
- vortex generator
- blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005611 electricity Effects 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000758 substrate Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- 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
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05B2240/306—Surface measures
- F05B2240/3062—Vortex generators
-
- 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 discloses a kind of wind electricity blade vortex generator, the vortex generating unit point includes into first vortex board and second eddy current plate of " eight words " mirror settings；The vortex generator further includes the water diversion part that the slot end that part occurs for vortex is arranged in.A kind of wind electricity blade vortex generator provided by the invention, rectified action is played by the way that water diversion part is arranged on vortex generator, air-flow can be reduced and opened up to flowing, blade aerodynamic performance is improved, meanwhile the aeroperformance for further increasing blade is closed in water diversion part and vortex generating unit distribution.
Description
Technical field
The present invention relates to field of wind power equipment, particularly relate to a kind of wind electricity blade vortex generator.
Background technique
With economic flourishing growth, global resource anxiety problem is more and more prominent, and people can not in saving
While the renewable sources of energy, the development and utilization to renewable energy are increased, wherein the utilization to wind energy is widely studied and answers
With.
As the important equipment using wind energy, blade of wind-driven generator captures the size of wind energy for direct relation from air
Energy to wind-driven generator exports.Currently, promoting blade of wind-driven generator aeroperformance main method is added in blade surface
Add vortex generator, the size and installation site of vortex generator have larger impact to the flowing of blade surface air-flow, also directly close
It is to the promotion effect to blade aerodynamic performance.In the process of running, it is low, stable that there are vortex intensity for existing vortex generator
Property difference problem, and then the promotion effect of aeroperformance is also limited.
Summary of the invention
In view of this, improving the gas of wind electricity blade it is an object of the invention to propose a kind of wind electricity blade vortex generator
Dynamic performance.
Based on a kind of above-mentioned purpose wind electricity blade vortex generator provided by the invention, the vortex generator includes vortex
Part occurs, the vortex generating unit point includes into first vortex board and second eddy current plate of " eight words " mirror settings；The whirlpool
Flow-generator further includes the water diversion part that the slot end that part occurs for vortex is arranged in.
Preferably, the water diversion part includes the first deflector and the second deflector, the first deflector and the first vortex board
It abuts, the second deflector is abutted with second eddy current plate, and the first deflector is parallel with the vortex generation symmetry axis of part or there are small
In the angle for being equal to 5 degree, the second deflector is parallel with the vortex generation symmetry axis of part or there is the angle for being less than or equal to 5 degree.
Preferably, the first angle that the first vortex board and symmetry axis are formed is equal to second eddy current plate and symmetry axis is formed the
Two angles, and between 10 to 50 degree, optionally, between 10 to 30 degree.
Preferably, the ratio of the blade profile chord length of Partial Height and installation place occurs for vortex between 0.4%-4%.
Preferably, the ratio of Partial Height occurs for the water diversion part height and vortex between 0.1-0.3 or 0.5-
Between 0.8.
Preferably, the edge that part occurs for vortex is provided with front side circular arc, connection circular arc and rear side circular arc, the diversion division
The upper edge divided is arc, constitutes continuous circular arc with front side circular arc.
Preferably, part integrated molding occurs for water diversion part and vortex.
Preferably, the vortex generator further includes substrate, and the water diversion part and the vortex occur part and be fixed on
On substrate, the substrate is mounted on wind electricity blade.
The present invention also provides a kind of wind electricity blades, including suction surface, pressure face and leading edge and trailing edge, set on suction surface
Set any of the above wind electricity blade vortex generator.
Preferably, ratio of the vortex generator in chordwise distance blade profile up-front length and blade profile chord length
Between 25%-50%.
From the above it can be seen that a kind of wind electricity blade vortex generator provided by the invention, by occurring in vortex
Water diversion part is set on device and plays rectified action, air-flow can be reduced and opened up to flowing, blade aerodynamic performance is improved, meanwhile, water conservancy diversion
The aeroperformance for further increasing blade is closed in part and vortex generating unit distribution.
The height of part occurs for a kind of wind electricity blade vortex generator provided by the invention, water diversion part and vortex according to peace
Blade profile chord length designs at dress, and the size of vortex generator is accurately matched with each installation site on blade, Ge Gewei
Effective promotion aeroperformance is set, and then improves blade generating efficiency.
A kind of wind electricity blade provided by the invention, the position of vortex generator is before chordwise distance blade profile on suction surface
The length of edge and the ratio of blade profile chord length are setting range, can effectively promote blade aerodynamic performance.
Detailed description of the invention
Fig. 1 is wind electricity blade structural schematic diagram provided in an embodiment of the present invention；
Fig. 2 is wind electricity blade vortex generator structure schematic diagram provided in an embodiment of the present invention；
Fig. 3 is vortex generator schematic top plan view provided in an embodiment of the present invention；
Fig. 4 is wind electricity blade schematic cross-section provided in an embodiment of the present invention；
Fig. 5 is vortex generator schematic rear view provided in an embodiment of the present invention；
Fig. 6 is vortex generator schematic side view provided in an embodiment of the present invention.
Wherein, 1- suction surface, 2- pressure face, 3- blade root, 4- blade tip, 5- leading edge, 6- trailing edge, 7- vortex generator, 8- are led
Part, 10- substrate, 11- blade profile chord length, 12- thickness, 13- water diversion part height, 14- vortex occur for stream part, 9- vortex
Partial Height occurs, circular arc on front side of 15-, 16- connection circular arc, 17- rear side circular arc, 18- symmetry axis, the first angle of 19-, 20- the
Two angles, 21- length.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
It should be noted that all statements for using " first " and " second " are for differentiation two in the embodiment of the present invention
The non-equal entity of a same names or non-equal parameter, it is seen that " first " " second " only for the convenience of statement, does not answer
It is interpreted as the restriction to the embodiment of the present invention, subsequent embodiment no longer illustrates this one by one.
As shown in Figure 1, being a kind of wind electricity blade structure provided in an embodiment of the present invention, wind electricity blade includes suction surface 1, pressure
Vortex generator 7 is arranged in power face 2 and leading edge 5 and trailing edge 6, wind electricity blade on suction surface 1.Optionally, multiple vortex occur
Device 7 is arranged along the direction of blade root 3 to blade tip 4 sequence.
It is as shown in Figures 2 and 3 the structure of wind electricity blade vortex generator 7 provided in an embodiment of the present invention.Vortex occurs
Device 7 includes that part 9 occurs for vortex, and the first vortex board and second eddy current that part 9 includes into " eight words " mirror settings occur for vortex
Plate；Vortex generator 7 further include be arranged in vortex occur part 9 slot end water diversion part 8, be used to reduce gas open up to
Flowing, plays water conservancy diversion rectified action.9 mating reaction of part occurs for water diversion part 8 and vortex, plays water conservancy diversion and increases the work of vortex
With raising blade aerodynamic performance.
Further, water diversion part 8 includes the first deflector and the second deflector, and the first deflector is supported with the first vortex board
It connects, the second deflector is abutted with second eddy current plate, and the first deflector is parallel with the vortex generation symmetry axis 18 of part 9 or there are small
In the angle for being equal to 5 degree, the second deflector is parallel with the vortex generation symmetry axis 18 of part 9 or there is the folder for being less than or equal to 5 degree
Angle.At this point, the first deflector and the second deflector less parallel, when there is wind to pass through, into water diversion part air-flow to first
The impact of deflector and the second deflector is smaller；Correspondingly, part, which occurs, for water diversion part and vortex forms obtuse angle angle, do not enter
Resistance is small when the air-flow of water diversion part encounters the first vortex board and second eddy current plate.Vortex generator is being rectified and is being improved as a result,
Reach while vortex and reduces extraneous factor damage caused by it under extreme operating condition.
In some embodiments of the invention, water diversion part 8 and vortex section 9 are integrally formed, specifically, the first deflector
It is integrally formed with the first vortex board, the second deflector and second eddy current plate are integrally formed.
The angle of vortex generator provided in an embodiment of the present invention is clear that from Fig. 3, specifically, vortex generating unit
Points 9 the first vortex board and second eddy current plate are distributed in the two sides of symmetry axis 18, the first vortex board and symmetry axis 18 at " eight " word
The first angle 19 formed is equal to the second angle 20 that second eddy current plate and symmetry axis 18 are formed, and between 10 to 50 degree, can
Choosing, between 10 to 30 degree.The angle is set with conducive to the generation of vortex.
As shown in figure 4, the wind electricity blade schematic cross-section provided for inventive embodiments.Blade profile chord length 11 is leading edge 5
The distance between trailing edge 6.In some embodiments of the invention, wind electricity blade is aerofoil with blunt tail edge.
In some embodiments of the invention, as shown in Figure 4 and Figure 5, the leaf of Partial Height 14 and installation place occurs for vortex
The ratio of piece section chord length 11 is between 0.4%-4%.From blade root to blade tip, the chord length of wind electricity blade constantly changes, vortex hair
The height 14 of first portion 9 is accurately set according to the chord length of installation position, improves vortex intensity.In addition, during follow-up maintenance,
It targetedly checks replacement vortex generator 7, improves maintenance efficiency.
In some embodiments of the invention, the ratio of Partial Height 14 occurs for water diversion part height 13 and vortex in 0.1-
Between 0.3 or between 0.5-0.8, be conducive to water diversion part 8 and bear lesser windage to reach water conservancy diversion rectified action while cooperating
Vortex occurs part 9 and reaches more preferably vortex intensity, bears lesser windage and air-flow is prevented to open up to flowing, caused by reducing thus
Loss of lift.
In some embodiments of the invention, as shown in fig. 6, the side view of vortex generator 7 can be seen, it is vortexed generating unit
9 edge is divided to be provided with front side circular arc 15, connection circular arc 16 and rear side circular arc 17.Optionally, the upper edge of water diversion part 8 is arc
Shape constitutes continuous circular arc with front side circular arc 15.Specifically, the front side circular arc 15 of the first vortex board extends on the first deflector
The front side circular arc 15 on edge, second eddy current plate extends to edge on the second deflector.Such designed arc-shaped appearance is further ensured that vortex hair
The intensity of raw device 7, while facilitating the promotion of aeroperformance.
In some embodiments of the invention, water diversion part 8 and the thickness 12 of vortex generation part 9 are equal, such to set
The functional reliability that can effectively improve vortex generator 7 is set, extraneous factor is damaged broken caused by it under reduction extreme operating condition
It is bad.
In some embodiments of the invention, vortex generator 7 further includes substrate 10, water diversion part 8 and vortex generating unit
9 are divided to fix on the substrate 10.When seated, using basic 10 as installation unit, occur without adjusting water diversion part 8 and vortex
The position of part 9, is easily installed.Optionally, in some embodiments of the invention, 9 and of part occurs for water diversion part 8, vortex
Substrate 10 is integrally formed.
In some embodiments of the invention, vortex generator material is polymer, ensures the lightning protection properties of blade.
The present invention also provides a kind of wind electricity blades, including suction surface 1, pressure face 2 and leading edge 5 and trailing edge 6, in suction surface
Any of the above vortex generator 7 is provided on 1.Specifically, the water diversion part 8 of vortex generator 7 is towards leading edge 5, it is corresponding
, part 9 occurs for vortex towards trailing edge 6.
In some embodiments of the invention, length 21 and leaf of the vortex generator 7 in chordwise distance blade profile leading edge 5
The ratio of piece section chord length 11 (as shown in Figure 4) between 25%-50% is conducive to the lift resistance ratio for improving blade, and then improves
The aeroperformance of wind electricity blade.
It should be understood by those ordinary skilled in the art that: the discussion of any of the above embodiment is exemplary only, not
It is intended to imply that the scope of the present disclosure (including claim) is limited to these examples；Under thinking of the invention, above embodiments
Or can also be combined between the technical characteristic in different embodiments, step can be realized with random order, and be existed such as
Many other variations of the upper different aspect of the invention, for simplicity, they are not provided in details.
The embodiment of the present invention be intended to cover fall into all such replacements within the broad range of appended claims,
Modifications and variations.Therefore, all within the spirits and principles of the present invention, any omission, modification, equivalent replacement, the improvement made
Deng should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of wind electricity blade vortex generator, which is characterized in that the vortex generator (7) includes that part (9) occurs for vortex,
The first vortex board and second eddy current plate that part (9) includes into " eight words " mirror settings occur for the vortex；The vortex occurs
Device (7) further includes the water diversion part (8) that the slot end of part (9) occurs in vortex for setting.
2. wind electricity blade vortex generator according to claim 1, which is characterized in that the water diversion part (8) includes the
One deflector and the second deflector, the first deflector are abutted with the first vortex board, and the second deflector is abutted with second eddy current plate, the
It is parallel or exist and be less than or equal to 5 degree of angle that part symmetry axis (18) of (9) occurs for one deflector and vortex, the second deflector and
The symmetry axis (18) of part (9) occurs for vortex in parallel or in the presence of the angle for being less than or equal to 5 degree.
3. wind electricity blade vortex generator according to claim 1, which is characterized in that the first vortex board and symmetry axis (18)
The second angle (20) that the first angle (19) formed is equal to second eddy current plate and symmetry axis (18) are formed, and in 10 to 50 degree
Between, optionally, between 10 to 30 degree.
4. wind electricity blade vortex generator according to claim 1, which is characterized in that vortex occur Partial Height (14) with
The ratio of the blade profile chord length (11) of installation place is between 0.4%-4%.
5. wind electricity blade vortex generator according to claim 1, which is characterized in that the water diversion part height (13) with
The ratio of Partial Height (14) occurs for vortex between 0.1-0.3 or between 0.5-0.8.
6. wind electricity blade vortex generator according to claim 1, which is characterized in that the edge of part (9) occurs for vortex
It is provided with front side circular arc (15), connection circular arc (16) and rear side circular arc (17), the upper edge of the water diversion part (8) is arc,
Continuous circular arc is constituted with front side circular arc (15).
7. wind electricity blade vortex generator according to claim 1, which is characterized in that water diversion part (8) and vortex occur
Partially (9) are integrally formed.
8. wind electricity blade vortex generator according to claim 1, which is characterized in that the vortex generator (7) is also wrapped
It includes substrate (10), the water diversion part (8) and the vortex occur part (9) and be fixed on substrate (10), the substrate (10)
It is mounted on wind electricity blade.
9. a kind of wind electricity blade, including suction surface (1), pressure face (2) and leading edge (5) and trailing edge (6), which is characterized in that
The described in any item wind electricity blade vortex generators of claim 1-8 are provided on suction surface (1).
10. wind electricity blade according to claim 9, which is characterized in that the vortex generator (7) is in chordwise distance blade
The length (21) of section leading edge (5) and the ratio of blade profile chord length (11) are between 25%-50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810923713.3A CN108953074B (en) | 2018-08-14 | 2018-08-14 | Wind-powered electricity generation blade vortex generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810923713.3A CN108953074B (en) | 2018-08-14 | 2018-08-14 | Wind-powered electricity generation blade vortex generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108953074A true CN108953074A (en) | 2018-12-07 |
| CN108953074B CN108953074B (en) | 2020-08-07 |
Family
ID=64470192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810923713.3A Active CN108953074B (en) | 2018-08-14 | 2018-08-14 | Wind-powered electricity generation blade vortex generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108953074B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107463A (en) * | 2019-05-27 | 2019-08-09 | 上海电气风电集团有限公司 | A kind of tapered cross-section vortex generator and its installation method |
| CN111439372A (en) * | 2020-04-21 | 2020-07-24 | 中国商用飞机有限责任公司 | Vortex generator for aircraft |
| WO2021089019A1 (en) * | 2019-11-07 | 2021-05-14 | 中材科技风电叶片股份有限公司 | Apparatus and method for regulating airfoil aerodynamic performance of blade, vortex generator control system, unit control system of wind turbine, vortex generator, and blade |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101223356A (en) * | 2005-05-17 | 2008-07-16 | 维斯塔斯风力系统有限公司 | Pitch control type wind turbine blade, wind turbine and its application |
| EP2466122A2 (en) * | 2010-12-17 | 2012-06-20 | Vestas Wind Systems A/S | Wind turbine blade and method for manufacturing a wind turbine blade with vortex generators |
| EP2801720A1 (en) * | 2013-05-07 | 2014-11-12 | General Electric Company | Airflow modifying assembly for a rotor blade of a wind turbine |
| CN104279129A (en) * | 2013-07-08 | 2015-01-14 | 西门子公司 | Reduced noise vortex generator for wind turbine blade |
| CN105715449A (en) * | 2014-12-22 | 2016-06-29 | 西门子公司 | Rotor Blade With Vortex Generators |
| CN207145127U (en) * | 2017-08-10 | 2018-03-27 | 上海电气风电集团有限公司 | Vortex generator and its pneumatic equipment bladess |
-
2018
- 2018-08-14 CN CN201810923713.3A patent/CN108953074B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101223356A (en) * | 2005-05-17 | 2008-07-16 | 维斯塔斯风力系统有限公司 | Pitch control type wind turbine blade, wind turbine and its application |
| EP2466122A2 (en) * | 2010-12-17 | 2012-06-20 | Vestas Wind Systems A/S | Wind turbine blade and method for manufacturing a wind turbine blade with vortex generators |
| EP2801720A1 (en) * | 2013-05-07 | 2014-11-12 | General Electric Company | Airflow modifying assembly for a rotor blade of a wind turbine |
| CN104279129A (en) * | 2013-07-08 | 2015-01-14 | 西门子公司 | Reduced noise vortex generator for wind turbine blade |
| CN105715449A (en) * | 2014-12-22 | 2016-06-29 | 西门子公司 | Rotor Blade With Vortex Generators |
| CN207145127U (en) * | 2017-08-10 | 2018-03-27 | 上海电气风电集团有限公司 | Vortex generator and its pneumatic equipment bladess |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107463A (en) * | 2019-05-27 | 2019-08-09 | 上海电气风电集团有限公司 | A kind of tapered cross-section vortex generator and its installation method |
| CN110107463B (en) * | 2019-05-27 | 2020-06-02 | 上海电气风电集团股份有限公司 | Vortex generator with gradually-reduced section and installation method thereof |
| WO2021089019A1 (en) * | 2019-11-07 | 2021-05-14 | 中材科技风电叶片股份有限公司 | Apparatus and method for regulating airfoil aerodynamic performance of blade, vortex generator control system, unit control system of wind turbine, vortex generator, and blade |
| CN111439372A (en) * | 2020-04-21 | 2020-07-24 | 中国商用飞机有限责任公司 | Vortex generator for aircraft |
| CN111439372B (en) * | 2020-04-21 | 2021-10-08 | 中国商用飞机有限责任公司 | Vortex generator for aircraft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108953074B (en) | 2020-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3037656B1 (en) | Rotor blade with vortex generators | |
| CN108953074A (en) | A kind of wind electricity blade vortex generator | |
| CN101059119B (en) | Wind rotor blade of mw-grade wind driven generator | |
| CN109690072B (en) | Wind turbine rotor blade | |
| CN101749193B (en) | High-efficient wind powered generator with start-up wind speed being set and blades thereof | |
| CN201050442Y (en) | Megawatt grade wind mill vane | |
| CN203383990U (en) | Large-thickness airfoil blade of large fan | |
| CN111502907B (en) | Vortex generator, fan blade and wind driven generator comprising same | |
| CN110761940A (en) | Fan blade for medium and low wind speed | |
| CN101892945B (en) | Wind turbine blade | |
| CN103306907A (en) | Big-thickness blunt trailing edge airfoil-shaped blade for large-scale blower | |
| CN103883483B (en) | A kind of 100W blade of wind-driven generator | |
| CN109139358A (en) | A kind of noise reduction trailing edge formations of blade of wind-driven generator | |
| CN204755184U (en) | Take vertical axis wind turbine blade of water conservancy diversion strip | |
| CN208870737U (en) | A kind of pneumatic equipment bladess | |
| CN209261727U (en) | A kind of noise reduction trailing edge formations of blade of wind-driven generator | |
| CN106704092A (en) | Synergistic spoiler blade | |
| CN211900866U (en) | Wind power blade and horizontal shaft wind driven generator | |
| CN209687653U (en) | A kind of wind generator set blade | |
| CN202991343U (en) | Fan blade of vertical-axis wind turbine | |
| CN203441675U (en) | Blade of novel horizontal-axis wind turbine | |
| CN108167124B (en) | Single-shaft double-type wind power generation equipment | |
| CN213511024U (en) | Wind turbine generator blade with asymmetric winglet | |
| CN205876599U (en) | Reduce two segmentation winglets of wind energy conversion system apex vortex | |
| CN110645141A (en) | Wind power blade noise reduction trailing edge structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240119 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. |
|
| TR01 | Transfer of patent right |