CN107061146A - A kind of dichotomous blade with multiple ailerons - Google Patents
A kind of dichotomous blade with multiple ailerons Download PDFInfo
- Publication number
- CN107061146A CN107061146A CN201710417020.2A CN201710417020A CN107061146A CN 107061146 A CN107061146 A CN 107061146A CN 201710417020 A CN201710417020 A CN 201710417020A CN 107061146 A CN107061146 A CN 107061146A
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- Prior art keywords
- blade
- aileron
- ailerons
- dichotomous
- primary blades
- 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.)
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- 238000009434 installation Methods 0.000 claims abstract description 4
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- 238000000605 extraction Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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 dichotomous blade with multiple ailerons, primary blades, aileron and connector are included；Primary blades are formed by root of blade and blade body, root of blade is in cylindrical shape, can be connected with wheel hub, and blade body sets the corresponding web of multiple slice locations and the covering being covered on web to be formed by cementing by blade interior, blade body is in paddle, with excellent aerodynamic quality；Aid in wing-like main lobe plate shape corresponding with installation site identical, and width of the width less than blade body of aileron；Connector is in cylinder, the two ends of aileron is arranged on, for connecting blade body and aileron.The present invention is improved when wind power generating set starts and operation torque by installing multiple ailerons, rotating speed during reduction operation, is played raising starting characteristic, reduction blade noise, is improved the effect of power coefficient and generated energy under the low wind speed of wind power generating set.
Description
Technical field
The present invention relates to technical field of wind power generating equipment, more particularly to a kind of dichotomous leaf with multiple ailerons
Piece.
Background technology
With the outburst of energy crisis in world wide, the regenerative resource such as wind energy, water energy, tide obtains more and more extensive
Attention.Compared with other regenerative resources, wind energy has that reserves are big, distribution is wide, energy density is low, different regions difference
Greatly, the features such as stability is poor, but because its huge storage capacity is constantly utilized by human development, and then driven wind-power electricity generation
The development of system.
The effect of wind wheel is to absorb wind energy in wind power generating set, and the wind energy transformation in natural wind is rotated for wind wheel
During mechanical energy.Its Leaf is the major part that wind energy is absorbed in wind wheel, the pneumatic design of blade and structure design
Quality, determines the ability of wind wheel capture wind energy and the generated energy of wind power generating set.
The wind power generating set of current main flow is mainly trunnion axis three-vane wind generator group, and reason is modern horizontal axis
The power coefficient of Wind turbines wind wheel is higher than vertical axis rotor, wherein the power coefficient of three blade wind wheels is higher, its peak power
Coefficient is about 0.47, and corresponding tip speed ratio is about 7；The wind energy conversion efficiency of twayblade and single blade wind wheel is also high, and it is maximum
The corresponding tip speed ratio of power coefficient is also above three blade wind wheels, i.e., under identical wind friction velocity, the number of blade is fewer, and wind wheel is optimal
Rotating speed is higher.By contrast, the optimum tip-speed ratio of multi-bladed windmill is relatively low, and wind speed round can be very slow, but is due to leafy
The power coefficient of piece wind wheel is too low, thus is rarely used in modern wind generating set.For blade design, lobe numbers are got over
Many, torque capacity coefficient value is also bigger, and corresponding tip speed ratio is also smaller, and its detent torque is bigger, and startability is better.But
It is as increasing for lobe numbers will also result in the reduction of maximal wind-energy usage factor.
With continuing to develop for wind driven generator technology, Wind turbines single-machine capacity is continuously increased.From the multikilowatt at initial stage
To many MW class of today, length of blade also reaches current rice up to a hundred from several meters, so causing opening for wind power generating set
Dynamic torque requires increasing.But due to the unstability of wind energy, cause wind power generating set often under relatively low wind speed
Operate to, Wind turbines startability is poor under the operation of low wind speed, and these low problems of power coefficient are obvious all the more.While because
Be blade at blade tip than relatively thin, intensity is weaker, produces stronger tip vortex, cause vane efficiency reduction, fatigue load increase and
Blade tip noise increases, and influences the aeroperformance of blade.Sent out to solve these problems, it is necessary to find a kind of wind-force that can both increase
Group of motors startability, noise during reduction wind power generating set operation is unlikely to cause wind due to increase lobe numbers again
Power generator constitutes the new blade design method that rising originally and power coefficient decline.
Therefore, adaptability of the blade in different wind power plants how is improved, expands the accommodation of blade, so as to ensure
Wind turbines efficiency under different wind regime, the problem of just turning into those skilled in the art's urgent need to resolve.
The content of the invention
It is an object of the invention to provide a kind of dichotomous blade with multiple ailerons, deposited in the prior art with overcoming
Drawbacks described above.Improved using multiple ailerons are installed when wind power generating set starts and operation torque, during reduction operation
Rotating speed, play reduction blade noise, improve starting characteristic, power coefficient and generated energy under the low wind speed of wind power generating set
Effect.
To achieve the above object, the present invention provides a kind of dichotomous blade with multiple ailerons, comprising primary blades, auxiliary
Help the wing and connector；The primary blades are formed by root of blade and blade body, and the root of blade is in cylindrical shape, can be with
It is connected with wheel hub, the blade body is set the corresponding web of multiple slice locations by blade interior and is covered on the web
Covering is formed by cementing, and the blade body is in paddle；It is described to aid in wing-like main lobe plate shape corresponding with installation site
It is identical, and width of the width less than the blade body of the aileron；The connector is in cylinder, is arranged on described auxiliary
The two ends of the wing are helped, for connecting the blade body and the aileron.
Preferably, the aileron is provided with 4.
Preferably, the width of the aileron is the 15% of blade body width.
Preferably, 2 ailerons are provided with the front of the primary blades, the length direction of each aileron
Set along the primary blades from vane tip to root of blade direction, and 2 ailerons are in from leaf in the primary blades
Piece tip is arranged to root of blade successively order.
Preferably, the distance between 2 described ailerons are the 5% of main length of blade.
Preferably, it is provided with 1 aileron at the back side of the primary blades, the length direction of the aileron is along institute
Primary blades are stated to set from vane tip to root of blade direction.
Preferably, the front is disposed relative to primary blades 1 close to the aileron of vane tip and the aileron at the back side
It is symmetrical.
Preferably, 2 connectors are set on each aileron.
Multiple ailerons are installed in wind generator set blade part.Because special blade construction is designed, in wind-force hair
When group of motors operation is carried out, due to adding aileron, natural wind flows through each during the dichotomous blade with multiple ailerons
Small aileron can all produce lift, and aileron improves detent torque and the operation torque of whole wind power generating set.Enhancing
Wind power generating set startability and the ability for absorbing wind energy at a lower wind speed.It ensure that and run under relatively low wind speed
When, it is also ensured that possess larger torque, the Wind energy extraction rate at low wind speeds that improves adds generated energy.And along with
The reduction of wind speed round, the rotational noise of wind wheel in the process of running can also be reduced.
Beneficial effects of the present invention：
The invention provides a kind of dichotomous blade with multiple ailerons, the wind generator set blade of this structure with
Blade of the prior art, which is compared, has advantages below：
(1) when wind power generating set starts, when natural wind flows through the aileron of blade, lift can be produced, is added whole
The lift of blade-section, causes the startability of wind power generating set to be enhanced.Large-scale wind power generating set is relatively adapted to
Using such a design.
(2) torque of the wind power generating set in whole service process is improved, it is ensured that wind power generating set is in relatively low wind
It can also possess larger Wind energy extraction efficiency under speed operation, improve wind power generating set generated energy.
(3) the normal operating rotating speed of wind power generating set is reduced, so as to play a part of reducing blade noise.
Brief description of the drawings
Fig. 1 is the front view of the dichotomous blade with multiple ailerons of the present invention；
Fig. 2 is the right view of the dichotomous blade with multiple ailerons of the present invention.
Fig. 3 is the upward view of the dichotomous blade with multiple ailerons of the present invention；
Embodiment
To make the purpose, technical scheme and advantage of the invention implemented clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label represent same or similar element or the element with same or like function.Described embodiment is the present invention
A part of embodiment, rather than whole embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to uses
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.Under
Embodiments of the invention are described in detail with reference to accompanying drawing for face.
In a broad embodiment of the invention：A kind of dichotomous blade with multiple ailerons, includes primary blades, auxiliary
The wing and connector；The primary blades are formed by root of blade and blade body, and the root of blade is in cylindrical shape, Ke Yiyu
Wheel hub is connected, and the blade body sets the corresponding web of multiple slice locations and the illiteracy being covered on the web by blade interior
Skin is formed by cementing, and the blade body is in paddle (having good aerodynamic quality)；The auxiliary wing-like and peace
The corresponding main lobe plate shape of holding position is identical, and width of the width less than the blade body of the aileron；The connection
Part is in cylinder, the two ends of the aileron is arranged on, for connecting the blade body and the aileron.
The dichotomous blade with multiple ailerons that the present invention is provided, has advantages below compared with existing blade：
(1) when wind power generating set starts, when natural wind flows through the aileron of blade, lift can be produced, is added whole
The lift of blade-section, causes the startability of wind power generating set to be enhanced.Large-scale wind power generating set is relatively adapted to
Using such a design.
(2) torque of the wind power generating set in whole service process is improved, it is ensured that wind power generating set is in relatively low wind
It can also possess larger Wind energy extraction efficiency under speed operation, improve wind power generating set generated energy.
(3) the normal operating rotating speed of wind power generating set is reduced, so as to play a part of reducing blade noise.
The present invention will be described in detail by 1-3 with reference to the accompanying drawings.
A kind of dichotomous blade with multiple ailerons, includes primary blades 1, aileron 2 and connector 3；The main lobe
Piece 1 is formed by root of blade and blade body, and the root of blade is in cylindrical shape, can be connected with wheel hub, the blade
Body sets the corresponding web of multiple slice locations and the covering being covered on the web to be formed by cementing by blade interior, institute
Blade body is stated in paddle (there is excellent aerodynamic quality)；The shape of aileron 2 main lobe corresponding with installation site
Plate shape is identical, and width of the width less than the blade body of the aileron 2, can preferably be blade body width
15%；The connector 3 is in cylinder, is arranged on the two ends of the aileron 2, for connecting the blade body and described
Aileron 2.
The aileron 2 is provided with 4.
2 ailerons 2, and the length direction edge of each aileron 2 are provided with the front of the primary blades 1
The primary blades 1 are set from vane tip to root of blade direction, and 2 ailerons 2 in the primary blades 1 from blade
Tip is arranged to root of blade successively order.Preferably, the distance between 2 described ailerons 2 are the 5% of the length of primary blades 1.
1 aileron 2 is provided with the back side of the primary blades 1, and the length direction edge of the aileron 2 is described
Primary blades 1 are set from vane tip to root of blade direction.
It is relative that the aileron 2 of the close vane tip in front is disposed relative to primary blades 1 with the aileron 2 at the back side
Claim.
2 connectors 3 are set on each aileron 2.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
The present invention is described in detail with reference to the foregoing embodiments for pipe, it will be understood by those within the art that：It is still
Technical scheme described in foregoing embodiments can be modified, or which part technical characteristic is equally replaced
Change；And these modifications or replacement, the essence of appropriate technical solution is departed from the essence of various embodiments of the present invention technical scheme
God and scope.
Claims (8)
1. a kind of dichotomous blade with multiple ailerons, is characterised by：Include primary blades, aileron and connector；It is described
Primary blades are formed by root of blade and blade body, and the root of blade is in cylindrical shape, can be connected with wheel hub, the leaf
Piece body sets the corresponding web of multiple slice locations and the covering being covered on the web to be formed by cementing by blade interior,
The blade body is in paddle, with good aerodynamic quality；It is described to aid in wing-like primary blades corresponding with installation site
Shape is identical, and width of the width less than the blade body of the aileron；The connector is in cylinder, is arranged on institute
The two ends of aileron are stated, for connecting the blade body and the aileron.
2. the dichotomous blade according to claim 1 with multiple ailerons, it is characterised in that：The aileron is set
There are 4.
3. the dichotomous blade according to claim 1 with multiple ailerons, it is characterised in that：The width of the aileron
Spend for the 15% of blade body width.
4. the dichotomous blade according to claim 2 with multiple ailerons, it is characterised in that：In the primary blades
Front is provided with 2 ailerons, and the length direction of each aileron is along the primary blades from vane tip to blade
Root direction is set, and 2 ailerons are in that order is arranged successively from vane tip to root of blade in the primary blades.
5. the dichotomous blade according to claim 4 with multiple ailerons, it is characterised in that：2 ailerons
The distance between be main length of blade 5%.
6. the dichotomous blade according to claim 4 with multiple ailerons, it is characterised in that：In the primary blades
The back side is provided with 1 aileron, and the length direction of the aileron is along the primary blades from vane tip to root of blade
Direction is set.
7. the dichotomous blade according to claim 6 with multiple ailerons, it is characterised in that：The front is close to leaf
It is symmetrical that the aileron at piece tip and the aileron at the back side are disposed relative to primary blades 1.
8. the dichotomous blade with multiple ailerons according to one of claim 1-7, it is characterised in that：Each institute
State 2 connectors of setting on aileron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710417020.2A CN107061146A (en) | 2017-06-06 | 2017-06-06 | A kind of dichotomous blade with multiple ailerons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710417020.2A CN107061146A (en) | 2017-06-06 | 2017-06-06 | A kind of dichotomous blade with multiple ailerons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107061146A true CN107061146A (en) | 2017-08-18 |
Family
ID=59617761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710417020.2A Pending CN107061146A (en) | 2017-06-06 | 2017-06-06 | A kind of dichotomous blade with multiple ailerons |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061146A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100303631A1 (en) * | 2009-05-29 | 2010-12-02 | Vestas Wind Systems A/S | Wind Turbine Rotor Blade Having Segmented Tip |
| CN101929423A (en) * | 2009-06-22 | 2010-12-29 | 通用电气公司 | Hinged wind turbine blade tips |
| CN102454538A (en) * | 2010-10-25 | 2012-05-16 | 通用电气公司 | Expansion assembly for a rotor blade of a wind turbine |
| CN102859183A (en) * | 2010-04-27 | 2013-01-02 | Lm玻璃纤维制品有限公司 | Wind turbine blade provided with a slat assembly |
| US20140127030A1 (en) * | 2012-10-22 | 2014-05-08 | New World Energy Enterprises Ltd | A turbine blade system |
| US20140271216A1 (en) * | 2013-03-15 | 2014-09-18 | George J. Syrovy | Horizontal axis wind or water turbine with forked or multi-blade upper segments |
| CN204371554U (en) * | 2014-11-26 | 2015-06-03 | 刘颂凯 | Large-scale horizontal axial type wind electricity blade |
| CN105065195A (en) * | 2014-05-01 | 2015-11-18 | 西门子能量股份有限公司 | Aerodynamic device for a rotor blade of a wind turbine |
-
2017
- 2017-06-06 CN CN201710417020.2A patent/CN107061146A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100303631A1 (en) * | 2009-05-29 | 2010-12-02 | Vestas Wind Systems A/S | Wind Turbine Rotor Blade Having Segmented Tip |
| CN101929423A (en) * | 2009-06-22 | 2010-12-29 | 通用电气公司 | Hinged wind turbine blade tips |
| CN102859183A (en) * | 2010-04-27 | 2013-01-02 | Lm玻璃纤维制品有限公司 | Wind turbine blade provided with a slat assembly |
| CN102454538A (en) * | 2010-10-25 | 2012-05-16 | 通用电气公司 | Expansion assembly for a rotor blade of a wind turbine |
| US20140127030A1 (en) * | 2012-10-22 | 2014-05-08 | New World Energy Enterprises Ltd | A turbine blade system |
| US20140271216A1 (en) * | 2013-03-15 | 2014-09-18 | George J. Syrovy | Horizontal axis wind or water turbine with forked or multi-blade upper segments |
| CN105065195A (en) * | 2014-05-01 | 2015-11-18 | 西门子能量股份有限公司 | Aerodynamic device for a rotor blade of a wind turbine |
| CN204371554U (en) * | 2014-11-26 | 2015-06-03 | 刘颂凯 | Large-scale horizontal axial type wind electricity blade |
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Application publication date: 20170818 |