CN112796931A - Wind power turbulence structure - Google Patents
Wind power turbulence structure Download PDFInfo
- Publication number
- CN112796931A CN112796931A CN202011611766.5A CN202011611766A CN112796931A CN 112796931 A CN112796931 A CN 112796931A CN 202011611766 A CN202011611766 A CN 202011611766A CN 112796931 A CN112796931 A CN 112796931A
- Authority
- CN
- China
- Prior art keywords
- wind power
- turbulence structure
- wind
- sliding sleeve
- structure body
- 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
- 238000009423 ventilation Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 230000004323 axial length Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 1
- 238000010248 power generation Methods 0.000 abstract description 5
- 239000013589 supplement Substances 0.000 abstract description 2
- 230000001502 supplementing effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/0608—Rotors characterised by their aerodynamic shape
- F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
Abstract
The invention belongs to the technical field of wind power generation, and particularly relates to a wind power turbulence structure on a wind power generation fan blade. The wind power turbulence structure is arranged at the outer side end of the fan blade, and the fan blade steel plate framework extends and is inserted into the wind power turbulence structure; the wind power turbulence structure comprises a wind power turbulence structure body and a lightning receptor arranged at the tip of the wind power turbulence structure body, and the lightning receptor is in conduction connection with the blade steel plate framework; the wind power turbulence structure body is of a dorsal fin structure, the windward side surface is of a conical edge structure, and convex edges and grooves which are consistent with the transverse inclination radian of the fan blades and are spaced from each other are symmetrically arranged on two sides of the wind power turbulence structure body; the side of wind-force vortex structure body is provided with the ventilation hole that transversely runs through wind-force vortex structure body. The technical problems that an existing wind power turbulence structure cannot increase air supplement amount under the condition of over-small wind power, increase wind resistance under the condition of over-large wind power and effectively prevent the fan blade from being damaged too fast in rotation are solved.
Description
Technical Field
The invention belongs to the technical field of wind power generation, and particularly relates to a wind power turbulence structure on a wind power generation fan blade.
Background
The blades of the wind generating set are key components of wind power equipment for converting wind energy into mechanical energy, and the manufacturing cost of the blades accounts for about 15 to 30 percent of the total cost of the wind generating set. The blades are usually designed based on aerodynamic shapes to present special airfoil shapes, and the larger the lift-drag ratio of the blades of the airfoil shapes, the higher the wind catching efficiency of the fan can be, and further the output power of the fan can be improved. However, when the wind catching efficiency of the blades is improved, if the wind force is too large, the rotating speed of the fan is too high, and the damage to the equipment caused by starting the brake auxiliary system is large, so that a wind-force turbulence structure which has better wind-supplementing capability under the condition of low wind and can increase the wind resistance in time when the wind force is too large is needed.
Disclosure of Invention
The invention provides a wind power turbulence structure on a wind power generation fan blade, which solves the technical problems that the existing wind power turbulence structure can not increase air supplement amount under the condition of too small wind power, can increase wind resistance under the condition of too large wind power, and can effectively prevent the fan blade from being damaged due to too fast rotation of the fan blade.
In order to achieve the purpose, the invention provides a wind power turbulence structure, wherein the wind power turbulence structure is arranged at the outer side end of a fan blade, and a fan blade steel plate framework extends and is inserted into the wind power turbulence structure; the wind power turbulence structure comprises a wind power turbulence structure body and a lightning receptor arranged at the tip end of the wind power turbulence structure body, and the lightning receptor is in conduction connection with the blade steel plate framework; the wind power turbulence structure body is of a dorsal fin structure, the windward side surface is of a conical edge structure, and convex edges and grooves which are consistent with the transverse inclination radian of the fan blades and are spaced from each other are symmetrically arranged on two sides of the wind power turbulence structure body; the depth of the convex ribs and the grooves is one fifth of the thickness of the wind power turbulence structure; the side face of the wind power turbulence structure body is provided with a vent hole which transversely penetrates through the wind power turbulence structure body, a sliding sleeve is inserted into the vent hole, the sliding sleeve is of a hollow tubular structure, the outer side end of the sliding sleeve is sealed, at least 2 opening gaps are formed in the side wall of the sliding sleeve along the length direction of the sliding sleeve, an outward convex limiting boss is arranged at the end head of the inner side of the sliding sleeve, 2 inward convex limiting blocks are arranged inside the vent hole, and the limiting boss is clamped between the 2 limiting blocks; springs are sleeved on the outer sides of the sliding sleeves among the 2 limiting blocks; the sliding sleeve is not under the external force condition, and the sliding sleeve outside end is parallel with ventilation hole air outlet plane.
Furthermore, the side wall of the side wall, close to the air outlet of the ventilation hole, of the sliding sleeve is provided with at least one set of empennage protruding outwards, the side wall of the ventilation hole is provided with a clamping groove, the empennage can slide along the clamping groove under the action of external force, and the empennage can be clamped into the clamping groove under the action of a spring when the empennage is not under the action of external force.
Furthermore, the cross sections of the grooves and the convex ribs are arc curves, triangles or trapezoids.
Further, the number of the opening gaps is 4.
Furthermore, 4 opening gaps and tail fins are alternately arranged.
Furthermore, the tail wing is obliquely arranged into a spiral shape along the axial direction of the vent hole, and the axial length of the tail wing along the vent hole is smaller than the compressible length of the spring.
Further, the thickness of the wind power turbulence structure body is gradually reduced from top to bottom.
Furthermore, the thickness of the wind power turbulence structure body is gradually reduced from the windward side to the leeward side.
Compared with the prior art, the invention has the beneficial effects that: the fan blade rotating speed can be improved by increasing the wind supplementing capacity under the condition of small wind power, and the wind supplementing capacity is reduced and the wind resistance is increased by the movement of the sliding sleeve under the condition of overlarge wind power; the wind resistance is further increased through the arrangement of the protruded tail wings, and the damage of the fan blades caused by overhigh rotating speed of the fan blades under the condition of overlarge wind power is effectively prevented.
Drawings
FIG. 1 is a diagram illustrating a state of use of the wind spoiler structure according to the present invention.
FIG. 2 is a schematic structural view of a wind turbulence structure according to the present invention.
FIG. 3 is a vertical cross-sectional view of a vent of the wind turbulence structure of the present invention when the wind is small.
FIG. 4 is a vertical cross-sectional view of a vent of the wind turbulence structure of the present invention when the wind force is large.
Description of reference numerals: 1. a fan blade; 2. a fan blade steel plate framework; 3. a wind turbulence structure body; 3.1, ribs; 3.2, grooves; 3.3, a pyramid structure; 3.4, a vent hole; 3.4.1, a clamping groove; 3.4.2, a limiting block; 3.4.3, a spring; 3.5, sliding sleeves; 3.5.1, a tail wing; 3.5.2, opening a gap; 3.5.3, a limit boss; 4. a lightning receptor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first" and "second," and the like, in the description and in the claims of embodiments of the present invention are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first parameter set and the second parameter set, etc. are used to distinguish different parameter sets, rather than to describe a particular order of parameter sets.
In the description of the embodiments of the present invention, the meaning of "a plurality" means two or more unless otherwise specified. For example, a plurality of elements refers to two elements or more.
The term "and/or" herein is an association relationship describing an associated object, and means that there may be three relationships, for example, a display panel and/or a backlight, which may mean: there are three cases of a display panel alone, a display panel and a backlight at the same time, and a backlight alone. The symbol "/" herein denotes a relationship in which the associated object is or, for example, input/output denotes input or output.
In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
The invention provides a wind power turbulence structure, which increases the wind supplementing capacity of a fan blade when the wind power is small through the arrangement of the wind power turbulence structure; when the wind power is too large, the wind resistance of the fan blade can be effectively increased to reduce the rotating speed, so that the fan blade can be better protected, and the technical problems that the rotating speed of the fan blade is too slow when the wind power is too small, and the rotating speed is too fast and the fan blade is easy to damage when the wind speed is too large are effectively solved.
In embodiment 1, as shown in fig. 1 to 4, the wind turbulence structure is integrally connected and arranged at the outer side end of the wind blade 1, and the wind blade steel plate framework 2 is inserted into the wind turbulence structure in an extending manner, so that the wind turbulence structure is supported on one hand, and is conveniently connected with a lightning receptor on the other hand, thereby achieving a lightning protection effect; the wind power turbulence structure comprises a wind power turbulence structure body 3 and a lightning receptor 4 fixedly arranged at the tip of the wind power turbulence structure body 3, the lightning receptor is in conduction connection with the blade steel plate framework, and the blade steel plate framework 2 is grounded through a lead; the wind power turbulence structure body 3 is of a dorsal fin structure, namely a dorsal fin similar to a fish, the upper end is small, the bottom is large, the windward side surface is a conical edge structure 3.3, namely the windward side surface forms transition from small to large, convex edges 3.1 and grooves 3.2 which are mutually spaced and consistent with the transverse inclination radian of the fan blade are symmetrically arranged on two sides of the wind power turbulence structure body 3, and wind forms turbulence from the surfaces of the convex edges 3.1 and the grooves 3.2 which are arranged at intervals after the wind power is applied to the wind power turbulence structure body 3, so that the wind supplementing area is increased, and the rotating speed of the fan blade 1 is improved under the condition of smaller wind power; the depth of the convex edge 3.1 and the depth of the groove 3.2 are one fifth of the thickness of the wind power turbulence structure, so that the stability of the wind power turbulence structure body 3 is ensured while the wind supplementing capacity is improved; the side face of the wind power turbulence structure body 3 is provided with a vent hole 3.4 transversely penetrating through the wind power turbulence structure body 3, namely the vent hole 3.4 penetrates through the rib 3.1 of the wind power turbulence structure body 3 and the groove 3.2 in the length direction, a sliding sleeve 3.5 is inserted into the vent hole 3.4, the sliding sleeve 3.5 is a hollow tubular structure, one end of the outer side of the sliding sleeve is leeward, 2 opening gaps 3.5.2 are symmetrically arranged on the side wall of the sliding sleeve 3.5 along the length direction of the sliding sleeve 3.5, the inner side end of the sliding sleeve 3.5 is provided with a convex limiting boss 3.5.3 for limiting the sliding sleeve 3.5 when sliding in the vent hole 3.4, 2 inward convex limiting blocks 3.4.2 are arranged in the vent hole 3.4, and the limiting boss 3.5.3 is clamped between the 2 limiting; the outer side of the sliding sleeve 3.5 between the 2 limiting blocks 3.4.2 is sleeved with a spring 3.4.3; the sliding sleeve 3.5 is under the external force condition of not receiving, and 3.5 outside ends of sliding sleeve are parallel with ventilation hole 3.4 air outlet plane. When the fan blade rotates too fast, wind enters from the wind inlet of the vent hole 3.4, blows the sliding sleeve 3.5 to move outwards, the larger the wind force is, the larger the spring elasticity is, the outward movement of the sliding sleeve 3.5 is about outstanding, the wind force passes through the opening gap 3.5.2 on the sliding sleeve 3.5, the more the sliding sleeve 3.5 is outstanding, the more the opening gap 3.5.2 is exposed, the worse the wind supplementing effect is caused, meanwhile, the larger the resistance is, under the condition that the wind resistance is gradually improved, the rotating speed of the fan blade 1 is reduced, and the technical problems that the rotating speed of the fan blade 1 is too high and the fan blade is easy to damage when the wind force. The wind resistance effect of the fan blade 1 under the condition of strong wind is higher, and the damage rate of equipment is reduced.
Exemplarily, in order to further improve the wind resistance and reduce the rotating speed of the fan blade 1 under the condition of overlarge wind power, at least one group of empennages protruding outwards 3.5.1 are arranged on the side wall of the sliding sleeve 3.5 close to the air outlet side of the ventilation hole 3.4, clamping grooves 3.4.1 are arranged at positions corresponding to the empennages 3.5.1 on the side wall of the ventilation hole 3.4, the empennages 3.5.1 can slide left and right along the clamping grooves 3.4.1 under the action of external force, and the empennages 3.5.1 are clamped into the clamping grooves 3.4.1 under the action of the springs 3.4.3 when the external force is not applied. The larger the wind power is, the larger the exposed area is, the larger the wind resistance is, and the larger the limit on the rotating speed of the fan blade 1 is.
Illustratively, the cross section of the groove 3.2 and the rib 3.1 is arc-shaped curve, triangle or trapezoid. Preferably, the cross section of the groove 3.2 and the cross section of the rib 3.1 are selected to be arc-shaped curves.
Illustratively, the number of the opening gaps is 4.
Preferably, the number of the opening slits 3.5.2 and the flight 3.5.1 is 4.
Illustratively, the tail fin 3.5.1 is arranged along the axial direction of the vent hole 3.4 in a reverse spiral shape, i.e. inclined at an angle of preferably 5 ° relative to the vent hole 3.4, and the axial length of the tail fin 3.5.1 along the vent hole 3.4 is less than the compressible length of the spring 3.4.3. When the wind power reaches a certain degree, the tail wing 3.5.1 is completely separated from the clamping groove 3.4.1 of the vent hole 3.4, so that the rotation can be realized under the action of the wind power, and the wind resistance is further increased.
Exemplarily, a bearing (not shown in the figure) is arranged between the limiting block 3.4.2 close to the leeward side and the sliding sleeve 3.5, a clamping groove (not shown in the figure) is arranged on the end face of the inner end of the bearing, and a clamping convex rib (not shown in the figure) which can be inserted into the clamping groove and corresponds to the clamping groove is arranged on the outer side of the sliding sleeve 3.5 close to one side of the limiting boss 3.5.3, so that when wind power is too large, the tail fin 3.5.1 is separated from the clamping groove 3.4.1, the tail fin 3.5.1 rotates under the action of the wind power, the clamping convex rib on the sliding sleeve 3.5 is clamped into the clamping groove, and the sliding sleeve 3.5 can rotate.
Illustratively, the wind turbulence structure body 3 gradually decreases in thickness from top to bottom.
Illustratively, the thickness of the wind turbulence structure body 3 gradually decreases from the windward side to the leeward side.
The working principle and the working process are as follows: in the working process, under the condition of small wind power, the wind supplementing capacity is effectively improved under the action of the shape of the dorsal fin of the wind power turbulence structure body 3, at the moment, the force applied to the sliding sleeve 3.5 inside the wind power turbulence structure body 3 is small, the sliding sleeve 3.5 does not move relative to the vent hole 3.4, when the wind power reaches a certain degree, the force applied to the sliding sleeve 3.5 is increasingly large after the wind enters the vent hole 3.4, when the force is larger than the limit of the spring 3.4.3 on the sliding sleeve 3.5, the sliding sleeve starts to slide towards the leeward side relative to the vent hole 3.4, the sliding sleeve 3.5 starts to protrude, meanwhile, the opening gap 3.5.2 is exposed, the vent hole 3.4 is communicated with the opening gap 3.5.2, so that the wind supplementing area is small to a certain degree, and the; meanwhile, the empennage 3.5.1 arranged on the side surface of the sliding sleeve 3.5 protrudes, so that the wind resistance is further increased. After the wind power continues to increase, the sliding sleeve 3.5 further moves, the spring 3.4.3 further compresses, the sliding sleeve 3.5 and the empennage 3.5.1 further increase, the opening gap 3.5.2 further increases until the empennage 3.5.1 breaks away from the clamping groove 3.4.1, thereby the empennage 3.5.1 rotates under the effect of the wind power, the clamping convex edge on the sliding sleeve 3.5 is clamped into the clamping groove on the end surface of the bearing to realize the clamping of the clamping convex edge and the bearing, the screw-thread-shaped empennage 3.5.1 rotates with acceleration under the effect of the wind power and the bearing to form a certain reverse vortex, when the wind resistance area is further increased, the wind resistance effect is further increased through the formed reverse vortex, and the effect of reducing the rotating speed of the fan blade 1 is more effectively realized. Meanwhile, the lightning arrester 4 is directly connected with the fan blade steel plate framework 2, so that the stability of the fan blade structure is improved, and the lightning protection effect of the wind power turbulence structure is obviously improved.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A wind power turbulence structure is characterized in that: the wind power turbulence structure is arranged at the outer side end of the fan blade, and the fan blade steel plate framework extends and is inserted into the wind power turbulence structure; the wind power turbulence structure comprises a wind power turbulence structure body and a lightning receptor arranged at the tip of the wind power turbulence structure body, and the lightning receptor is in conduction connection with the blade steel plate framework; the wind power turbulence structure body is of a dorsal fin structure, the windward side surface is of a conical edge structure, and convex edges and grooves which are consistent with the transverse inclination radian of the fan blades and are arranged at intervals are symmetrically arranged on two sides of the wind power turbulence structure body; the depth of the convex ribs and the grooves is one fifth of the thickness of the wind power turbulence structure; the side face of the wind power turbulence structure body is provided with a ventilation hole which transversely penetrates through the wind power turbulence structure body, a sliding sleeve is inserted into the ventilation hole, the sliding sleeve is of a hollow tubular structure, the outer side end of the sliding sleeve is arranged in a sealing manner, at least 2 opening gaps are formed in the side wall of the sliding sleeve along the length direction of the sliding sleeve, an outward convex limiting boss is arranged at the end head of the inner side of the sliding sleeve, 2 inward convex limiting blocks are arranged inside the ventilation hole, and the limiting boss is clamped between the; springs are sleeved on the outer sides of the sliding sleeves among the 2 limiting blocks; the sliding sleeve is parallel to the plane of the air outlet of the vent hole under the condition of not receiving external force.
2. The wind turbulence structure of claim 1, wherein: the side wall of the side wall, close to the air outlet of the ventilation hole, of the sliding sleeve is provided with at least one set of empennage protruding outwards, the side wall of the ventilation hole is provided with a clamping groove, the empennage can slide along the clamping groove under the action of external force, and when the empennage is not under the action of the external force, the empennage is clamped into the clamping groove under the action of the spring.
3. The wind turbulence structure of claim 1, wherein: the cross sections of the grooves and the ribs are arc curves, triangles or trapezoids.
4. The wind turbulence structure of claim 1, wherein: the number of the opening gaps is 4.
5. The wind turbulence structure of claim 2, wherein: the number of the opening gaps and the number of the tail wings are 4 and are alternately arranged.
6. The wind turbulence structure of claim 2, wherein: the empennage is obliquely arranged to be spiral along the axial direction of the vent hole, and the axial length of the empennage along the vent hole is smaller than the compressible length of the spring.
7. The wind turbulence structure of claim 1, wherein: the wind power turbulence structure body is gradually reduced in thickness from top to bottom.
8. The wind turbulence structure of claim 1, wherein: the thickness of the wind power turbulence structure body is gradually reduced from the windward side to the leeward side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011611766.5A CN112796931B (en) | 2020-12-30 | 2020-12-30 | Wind power turbulence structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011611766.5A CN112796931B (en) | 2020-12-30 | 2020-12-30 | Wind power turbulence structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112796931A true CN112796931A (en) | 2021-05-14 |
| CN112796931B CN112796931B (en) | 2023-06-02 |
Family
ID=75804561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011611766.5A Active CN112796931B (en) | 2020-12-30 | 2020-12-30 | Wind power turbulence structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112796931B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749180A (en) * | 2008-12-02 | 2010-06-23 | 叶东华 | Blade of vertical shaft type wind driven generator |
| CN101876294A (en) * | 2009-04-30 | 2010-11-03 | 通用电气公司 | Method with wind turbine blade and detection blade stall of stall sensor |
| US20110097207A1 (en) * | 2009-10-26 | 2011-04-28 | Wu Chao-Cheng | Pressure relief device |
| CN102410136A (en) * | 2010-09-17 | 2012-04-11 | 通用电气公司 | Wind turbine rotor blade with actuatable airfoil passages |
| JP2013087766A (en) * | 2011-10-18 | 2013-05-13 | Watanabe Kinzoku Kogyosho:Kk | Blade of lift type vertical-axis wind turbine |
| CN103329379A (en) * | 2011-12-09 | 2013-09-25 | 三菱重工业株式会社 | Wind turbine blade |
| US20150003985A1 (en) * | 2013-06-27 | 2015-01-01 | General Electric Company | Moveable surface features for wind turbine rotor blades |
| CN105556115A (en) * | 2013-11-21 | 2016-05-04 | 远景能源（江苏）有限公司 | Wind turbine blade with wave shaped trailing edge |
| CN106762389A (en) * | 2016-12-20 | 2017-05-31 | 北京金风科创风电设备有限公司 | Blade tip, blade of wind generating set and blade tip installation method |
| CN108894912A (en) * | 2018-09-07 | 2018-11-27 | 苏州若谷新能源科技有限公司 | A kind of wind energy conversion system vortex generator regulating device |
| CN209818203U (en) * | 2019-03-08 | 2019-12-20 | 中国科学院工程热物理研究所 | A bifurcated blade tip airbag structure of a wind power blade and the wind power blade |
| CN111706460A (en) * | 2020-05-19 | 2020-09-25 | 上海大学 | A controllable two-stage flap extension system mounted on a wind turbine blade |
-
2020
- 2020-12-30 CN CN202011611766.5A patent/CN112796931B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749180A (en) * | 2008-12-02 | 2010-06-23 | 叶东华 | Blade of vertical shaft type wind driven generator |
| CN101876294A (en) * | 2009-04-30 | 2010-11-03 | 通用电气公司 | Method with wind turbine blade and detection blade stall of stall sensor |
| US20110097207A1 (en) * | 2009-10-26 | 2011-04-28 | Wu Chao-Cheng | Pressure relief device |
| CN102410136A (en) * | 2010-09-17 | 2012-04-11 | 通用电气公司 | Wind turbine rotor blade with actuatable airfoil passages |
| JP2013087766A (en) * | 2011-10-18 | 2013-05-13 | Watanabe Kinzoku Kogyosho:Kk | Blade of lift type vertical-axis wind turbine |
| CN103329379A (en) * | 2011-12-09 | 2013-09-25 | 三菱重工业株式会社 | Wind turbine blade |
| US20150003985A1 (en) * | 2013-06-27 | 2015-01-01 | General Electric Company | Moveable surface features for wind turbine rotor blades |
| CN105556115A (en) * | 2013-11-21 | 2016-05-04 | 远景能源（江苏）有限公司 | Wind turbine blade with wave shaped trailing edge |
| CN106762389A (en) * | 2016-12-20 | 2017-05-31 | 北京金风科创风电设备有限公司 | Blade tip, blade of wind generating set and blade tip installation method |
| CN108894912A (en) * | 2018-09-07 | 2018-11-27 | 苏州若谷新能源科技有限公司 | A kind of wind energy conversion system vortex generator regulating device |
| CN209818203U (en) * | 2019-03-08 | 2019-12-20 | 中国科学院工程热物理研究所 | A bifurcated blade tip airbag structure of a wind power blade and the wind power blade |
| CN111706460A (en) * | 2020-05-19 | 2020-09-25 | 上海大学 | A controllable two-stage flap extension system mounted on a wind turbine blade |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112796931B (en) | 2023-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101321949B (en) | Blade for a wind turbine rotor | |
| US8550786B2 (en) | Vertical axis wind turbine with self-starting capabilities | |
| US7841836B2 (en) | Rotor blade for a wind power plant | |
| EP2917571B1 (en) | A system and method for trailing edge noise reduction of a wind turbine blade | |
| CN102865188B (en) | A wind turbine blade | |
| US10690112B2 (en) | Fluid turbine rotor blade with winglet design | |
| EP3168459A1 (en) | Vortex generator, wind turbine blade, and wind turbine power generating apparatus | |
| US20060239821A1 (en) | Windmill blade shaping and mounting to enhance performance | |
| US10280895B1 (en) | Fluid turbine semi-annular delta-airfoil and associated rotor blade dual-winglet design | |
| WO2018103803A1 (en) | A wind turbine blade having a truncated trailing edge | |
| CN103485973A (en) | Wind turbine blade with tip vane | |
| US20160169197A1 (en) | Wind turbine | |
| CN203362391U (en) | Wind turbine blade with tip vane | |
| KR102493731B1 (en) | Rotor blades shaped to improve wake spread | |
| CN112796931A (en) | Wind power turbulence structure | |
| CN107476935B (en) | Vertical axis wind blade, wind wheel and wind power generation device | |
| CN110107463B (en) | Vortex generator with gradually-reduced section and installation method thereof | |
| CN209192204U (en) | Propellers and Drones | |
| CN218717236U (en) | Double-blade coupling turbine | |
| CN215109264U (en) | Blade with tapered noise reduction device | |
| CN216922344U (en) | Blade guiding device for wind driven generator | |
| CN214837351U (en) | Efficient cross-flow wind wheel | |
| CN105545583B (en) | Wind power generation blade and lee face go out to flow the determination method at tangent line inclination angle | |
| JP7469126B2 (en) | Wind turbine blade assembly and wind turbine | |
| CN212868015U (en) | Blade of fan |
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 |