CN103032277B - Blade of wind generating set and wind generating set comprising blade - Google Patents
Blade of wind generating set and wind generating set comprising blade Download PDFInfo
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- CN103032277B CN103032277B CN201210566020.6A CN201210566020A CN103032277B CN 103032277 B CN103032277 B CN 103032277B CN 201210566020 A CN201210566020 A CN 201210566020A CN 103032277 B CN103032277 B CN 103032277B
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- blade
- leading
- generating set
- resetting means
- fixing device
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to a blade of a wind generating set. The blade comprises a blade body and an auxiliary device, wherein the windward face of the blade body is provided with a concave cambered step; the auxiliary device comprises a fixing device, a resetting device and a front edge plate; the fixing device is arranged at a position matched with the concave cambered step of the windward face in the blade body; one end of the resetting device is connected with the fixing device, and the other end of the resetting device is connected with the front edge plate together; and the appearance of the front edge plate is matched with the appearance of the concave cambered step of the windward face. Since the auxiliary device is additionally arranged on the windward face of the blade, the front edge plate extends out when at an interval of low air velocity; and at the time, the sectional lift force of the blade is increased, the torque of an impeller is improved, the starting characteristic of the impeller is improved, and the generating capacity of the wind generating set at the interval of low air velocity is increased. The blade has the advantages of simple principle, convenience in production and manufacturing, obvious use effect, durability, convenience in mounting and suitability for use on the wind generating set. The invention also relates to the wind generating set comprising the blade.
Description
Technical field
The present invention relates to a kind of wind-driven generator, particularly a kind of wind generator set blade and comprise the wind power generating set of this blade.
Technical background
The optimum design of wind generator set blade, according to being tip speed ratio, only could obtaining when meeting this condition and exert oneself preferably.This characteristic makes, when wind speed is lower, cannot obtain enough large moment of torsion, make startup of unit difficulty or generated energy on the low side.General way is only by improving starting wind velocity and the method for losing generated energy makes unit run at low wind speed interval.
Existing methodical main target ensures that impeller operates in the minimum grid-connected rotating speed of generator, thus ensure that unit can run at low wind speed interval.But meanwhile blade operates in the state departing from optimum design, the wind energy that impeller is caught is less.
Summary of the invention
In order to solve existing wind power generating set in low wind speed interval starting difficulty and generated energy technical problem on the low side, the invention provides a kind of principle wind generator set blade that is simple, that easily realize and comprising the wind power generating set of this blade.
The technological scheme that the present invention solves the problems of the technologies described above is: a kind of wind generator set blade, it comprises blade body and auxiliary device, the windward side of described blade body is provided with concave arc step, auxiliary device comprises fixing device, resetting means and leading-edge panel, fixing device is located at the inner position matched with the concave arc step of windward side of blade body, one end and the fixing device of resetting means link together, the other end and the leading-edge panel of resetting means link together, the profile of leading-edge panel and the concave arc step of windward side match, during resetting means pressurized, leading-edge panel and blade body form a complete smooth blades when fitting.
Preferably, described resetting means is spring.
In order to lead, preferably, described resetting means comprises guide sleeve, guide rod and spring, described guide sleeve and fixing device are fixed together, one end and the leading-edge panel of guide rod are fixed, the other end and the spring of guide rod are fixed, and the other end and the guide sleeve of spring are fixed, and the telescopic band action-oriented bar of spring is flexible in guide sleeve.
The present invention also provides a kind of wind power generating set, and it comprises blade, and described blade is specially blade described above.
Principle of the present invention is: at low wind speed interval, traditional wind group blade design cannot meet the requirement that low tip speed ratio runs, cause unit in this wind speed section starting difficulty, generated energy is on the low side, the present invention increases auxiliary device on wind generator set blade, improve the efficiency of impeller at low wind speed interval, thus solve unit in low wind speed interval starting difficulty and generated energy problem on the low side.
Technique effect of the present invention is: the present invention is owing to having set up auxiliary device in the windward side of blade, when when low wind speed interval, leading-edge panel stretches out, now, the sectional lift of blade increases, improve impeller moment of torsion, improve the starting characteristic of impeller, add the generated energy of low wind speed interval unit; During high wind speed, leading-edge panel is by the effect of blast, and by spring-compressed, leading-edge panel and blade body fit together and form smooth one, ensure that impeller obtains wind energy to greatest extent.And the principle of the invention is simple, be convenient to manufacture, using effect is obvious, durable in use, and convenient installation, is suitable for using in wind power generating set.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representations of embodiments of the invention when low wind speed interval.
Fig. 3 is the structural representations of embodiments of the invention when high wind speed is interval.
Fig. 4 is embodiment of the present invention resetting means schematic diagram.
In figure: 1, blade body; 2, auxiliary device; 3, fixing device; 4, resetting means; 5, leading-edge panel; 6, guide sleeve; 7, guide rod; 8, spring.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
As Fig. 1, shown in Fig. 2 and Fig. 3, wind generator set blade comprises blade body 1 and auxiliary device 2, the windward side of blade body 1 is provided with concave arc step, auxiliary device 2 comprises fixing device 3, resetting means 4 and leading-edge panel 5, fixing device 3 is located at the inner position matched with the concave arc step of windward side of blade body 1, one end and the fixing device 3 of resetting means 4 link together, the other end and the leading-edge panel 5 of resetting means 4 link together, the profile of leading-edge panel 5 and the concave arc step of windward side match, during resetting means 4 pressurized, leading-edge panel 5 and blade body 1 form a complete smooth blades when fitting.
As shown in Figure 4, resetting means 4 comprises guide sleeve 6, guide rod 7 and spring 8, guide sleeve 6 and fixing device 3 are fixed together, one end and the leading-edge panel 5 of guide rod 7 are fixed, the other end and the spring 8 of guide rod 7 are fixed, the other end and the guide sleeve 6 of spring 8 are fixed, and the telescopic band action-oriented bar 7 of spring 8 is flexible in guide sleeve 6.
During work, when when low wind speed interval, with reference to Fig. 2, under the effect of spring 8, leading-edge panel 5 stretches out, and now, the sectional lift of blade increases, and improves impeller moment of torsion; During high wind speed, with reference to Fig. 3, spring 8, by the effect of blast, compresses by leading-edge panel 5, and leading-edge panel 5 and blade body 1 fit together and form smooth one, ensures that impeller obtains wind energy to greatest extent.
The invention also discloses a kind of wind power generating set comprising above-mentioned blade, other each several part of this wind power generating set, with reference to prior art, repeats no more herein.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (3)
1. a wind generator set blade, it comprises blade body and auxiliary device, it is characterized in that, the windward side of described blade body is provided with concave arc step, auxiliary device comprises fixing device, resetting means and leading-edge panel, described resetting means is spring, fixing device is located at the inner position matched with the concave arc step of windward side of blade body, one end and the fixing device of resetting means link together, the other end and the leading-edge panel of resetting means link together, the profile of leading-edge panel and the concave arc step of windward side match, during resetting means pressurized, leading-edge panel and blade body form a complete smooth blades when fitting.
2. a kind of wind generator set blade according to claim 1, it is characterized in that, described resetting means comprises guide sleeve, guide rod and spring, described guide sleeve and fixing device are fixed together, one end and the leading-edge panel of guide rod are fixed, the other end and the spring of guide rod are fixed, and the other end and the guide sleeve of spring are fixed, and the telescopic band action-oriented bar of spring is flexible in guide sleeve.
3. a wind power generating set, it comprises blade, it is characterized in that, described leaf packet is containing claim 1 or a kind of wind generator set blade according to claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210566020.6A CN103032277B (en) | 2012-12-24 | 2012-12-24 | Blade of wind generating set and wind generating set comprising blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210566020.6A CN103032277B (en) | 2012-12-24 | 2012-12-24 | Blade of wind generating set and wind generating set comprising blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103032277A CN103032277A (en) | 2013-04-10 |
| CN103032277B true CN103032277B (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210566020.6A Active CN103032277B (en) | 2012-12-24 | 2012-12-24 | Blade of wind generating set and wind generating set comprising blade |
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| CN (1) | CN103032277B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286145A (en) * | 2015-05-14 | 2017-01-04 | 中航惠腾风电设备股份有限公司 | Change method and blade, blower fan and the blade preparation method of the distribution of trailing edge lateral wing type |
| CN109737005B (en) * | 2019-03-14 | 2020-08-04 | 沈阳航空航天大学 | Leading edge and trailing edge self-adaptive deformation blade capable of improving starting performance of wind turbine |
| CN109779830A (en) * | 2019-03-14 | 2019-05-21 | 沈阳航空航天大学 | A kind of adaptive deformed vanes of leading edge that wind energy conversion system starting performance can be improved |
| CN112483308B (en) * | 2020-12-04 | 2022-07-12 | 西安交通大学 | Fan blade with movable blade sectors |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536633A (en) * | 2010-12-21 | 2012-07-04 | 远景能源（丹麦）有限公司 | Wind turbine blade |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7896616B2 (en) * | 2007-01-29 | 2011-03-01 | General Electric Company | Integrated leading edge for wind turbine blade |
| US20120141278A1 (en) * | 2011-09-06 | 2012-06-07 | General Electric Company | Rotor blade assembly and method for modifying load characteristic of rotor blade in wind turbine |
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- 2012-12-24 CN CN201210566020.6A patent/CN103032277B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536633A (en) * | 2010-12-21 | 2012-07-04 | 远景能源（丹麦）有限公司 | Wind turbine blade |
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| CN103032277A (en) | 2013-04-10 |
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