CN208534691U - Double V shape tip structure pneumatic equipment bladess and wind energy conversion system - Google Patents
Double V shape tip structure pneumatic equipment bladess and wind energy conversion system Download PDFInfo
- Publication number
- CN208534691U CN208534691U CN201821278205.6U CN201821278205U CN208534691U CN 208534691 U CN208534691 U CN 208534691U CN 201821278205 U CN201821278205 U CN 201821278205U CN 208534691 U CN208534691 U CN 208534691U
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- Prior art keywords
- blade
- energy conversion
- wind energy
- conversion system
- double fork
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
-
- 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
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Abstract
The utility model relates to wind power generation fields, more particularly to a kind of blade tip is in the pneumatic equipment bladess and wind energy conversion system of double fork structures, including blade body, in double fork structure blade tips, the double fork structure parameters of blade tip are double fork included angle B=60 ° of blade tip, two fork height H=6cm, arc radius R1, R2 5cm between tip structure and blade body, NACA4412 aerofoil profile, chord length C=6cm account for the 10.4% of vane overall length degree.A kind of wind energy conversion system is also provided, including blade tip is in double fork structure blades, pod, generator, controller, battery, inverter and current loading.It is in double fork structure pneumatic equipment bladess that the utility model, which provides a kind of blade tip, is transformed under the premise of not increasing cost to blade construction, and simple process, expense is low, is convenient for integrated design, can large-scale production.Simultaneously in the case where guaranteeing that output power is basically unchanged, the degree of fatigue of blade is reduced, extends wind energy conversion system service life.
Description
Technical field
The utility model relates to the wind energy conversion system leaves that wind power generation field more particularly to a kind of blade tip are in double fork structures
Piece and wind energy conversion system.
Background technique
According to wind energy conversion system Aerodynamics, horizontal-shaft wind turbine power coefficient is that Betz limit is about 0.593, mesh
Preceding wind energy conversion system power coefficient is not up to the limit.Because of factors such as wind energy conversion system pattern, structure, vane airfoil profiles, direct shadow
Ring power coefficient.For the power coefficient for improving wind energy conversion system, the researcher of countries in the world proposes various grind
Study carefully method, currently frequently with following several methods: one, blade surface and edge install vortex generator additional, and groove, striped is such as arranged
Deng；Two, broached-tooth design is set in trailing edge；Three, blade tip is vortexed noise reduction, and such methods usually install winglet and wing flap additional, pass through
Optimize blade shape and setting angle；Four, damping characteristic, this method are to improve wind mill performance using the property of damping material；
Five, change the chord length design and limitation blade tip linear velocity of blade root section；Six, using advanced aerofoil profile.The above method passes through in blade
Pneumatic element is added in structure and designs new blade to change wind energy conversion system aeroperformance, but increases pneumatic element and the new blade of design
Can change wind machine structure power mechanical characteristic, increase influence factor, studying a question becomes complicated.
The suitable winglet of structure is added in horizontal-shaft wind turbine blade tip, the pressure distribution on wind wheel surface can be effectively improved,
The power coefficient for increasing wind energy conversion system, improves the power output of wind energy conversion system, enhances its Structure dynamic characteristics.
Be the shortcomings that horizontal-shaft wind turbine blade tip adds winglet method: manufacture winglet is at high cost, and technique is more complex, winglet
It is difficult to install, increase mounting cost, winglet and blade are unable to integrated design, are not easy to large-scale production.
It is in double fork structure pneumatic equipment bladess that the utility model, which designs a kind of blade tip, is in symmetrical structure, make tip structure and
Blade integration, is designed tip structure under the premise of not increasing blade cost, improves wind energy conversion system output power, reduces
The degree of fatigue of blade extends wind energy conversion system service life, is exploration accumulation experiment and the design experiences of wind wheel noise reduction approach.
Utility model content
It is in double fork structure pneumatic equipment bladess that the utility model, which designs a kind of blade tip, is in symmetrical structure, make tip structure and
Blade integration, is designed tip structure under the premise of not increasing blade cost, improves wind energy conversion system output power, reduces
The degree of fatigue of blade extends wind energy conversion system service life.
A kind of blade tip provided by the utility model is in double V shape symmetrical structure pneumatic equipment bladess, including blade body, is had
In symmetrical double fork structure blade tips.
The utility model additionally provides a kind of wind energy conversion system, is in blade, pod, the hair of double V shape symmetrical structures including blade tip
Motor, controller, battery, inverter and current loading；Pod is located at the front end of blade, after generator is located at blade
Portion, generator, battery are electrically connected with the controller, and battery, current loading are connect with inverter.
A kind of tip structure provided by the utility model is in the pneumatic equipment bladess of double V shapes, in Blades For Horizontal Axis Wind leaf
Point designs a kind of double fork structures of double V shapes, changes tip structure, double V shape symmetrical structures is presented, before not increasing cost
It puts and design is improved to tip structure, simple process, expense is low, is convenient for integrated design, is produced on a large scale.Meanwhile
In the case where guaranteeing that output power is basically unchanged, the degree of fatigue of blade is reduced, extends wind energy conversion system service life.
Detailed description of the invention
Illustrate specific embodiment of the present invention or technical solution in the prior art in order to clearer, it below will be right
Specific embodiment or attached drawing needed to be used in the description of the prior art do simple introduction, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the blade tip double-fork part position schematic diagram of double fork structure pneumatic equipment bladess provided by the embodiment of the utility model；
Fig. 2 is the output power variation diagram of blade 6m/s Axis Wind Turbine With A Tip Vane of the present invention remodeling front and back:
Fig. 3 is the output power variation diagram of blade 8m/s Axis Wind Turbine With A Tip Vane of the present invention remodeling front and back:
Fig. 4 is the output power variation diagram of blade 10m/s Axis Wind Turbine With A Tip Vane of the present invention remodeling front and back:
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that the reality retouched
Applying example is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, ability
Domain those of ordinary skill every other embodiment obtained without making creative work belongs to the utility model guarantor
The range of shield.
In the description of the present invention, it should be noted that unless there are specific regulation and limiting, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, can also can dismantling connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected: can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
As shown in Figure 1, a kind of blade tip provided by the utility model is in the pneumatic equipment bladess of double fork structures, including blade sheet
Body, the double fork structures of blade tip, the geometric parameter of double fork structures include included angle B, blade tip knot between height H, double forks between two forks
Arc radius R1, R2 between structure and blade body.
The utility model additionally provides a kind of wind energy conversion system, is in blade, the pod, power generation of double fork structures including blade tip
Machine, controller, battery, inverter and current loading；Pod is located at the front end of blade, and generator is located at the rear portion of blade,
Generator, battery are electrically connected with the controller, and the equal of battery, current loading is connected with inverter.
In the present embodiment, designing blade tip in double fork structure parameters is double fork included angle B=60 ° of blade tip, and two pitch
Height H=6cm selects NACA4412 aerofoil profile, and chord length C=6cm, arc diameter R1, R2 5cm, wind energy conversion system carries out with not retrofiting
Comparison.Specific test method is to utilize load constant, changes the output power and wind of the test method(s) measurement wind energy conversion system of arrives stream wind speed
The variation of energy usage factor Cp.It is obtained as Fig. 2,3,4 pairs of output power curve figures carry out analysis: in 6m/s, double fork structure wind
Pair fork structure wind energy conversion systems promote 4.80% when power machine promotes 14.15%, 8m/s compared to wind energy conversion system output power of not retrofiting,
When 10m/s, it is 6.84% that the output power of double fork structure wind energy conversion systems, which increases,；In the wind speed range of 6m/s-10m/s, double forks
Formula structure wind energy conversion system power coefficient is higher than wind energy conversion system of not retrofiting.By calculating, blade tip is in double fork structure wind energy conversion system remodeling
Power rise 8.60% afterwards.It follows that the blade tip after remodeling be in double fork structure wind energy conversion systems have to wind energy utilization it is certain
It influences and wind energy conversion system power is promoted.
By the remodeling of tip structure, a kind of blade tip provided by the utility model is in double fork structure pneumatic equipment bladess and wind
Power machine reduces the degree of fatigue of blade in the case where guaranteeing that output power is basically unchanged, and extends wind energy conversion system service life.
Finally, it should be noted that the above various embodiments is merely to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should be managed
Solution: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of skills
Art feature is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution the utility model
The range of each embodiment technical solution.
Claims (2)
1. the pneumatic equipment bladess that a kind of blade tip is in double fork structures, which is characterized in that including blade body, the blade body
Blade tip is in symmetric double fork structure, and the double fork structure parameters of blade tip are double fork included angle B=60 ° of blade tip, two fork height H=
6cm, it is total to account for blade by arc radius R1, R2 5cm, NACA4412 aerofoil profile, chord length C=6cm between tip structure and blade body
The 10.4% of length.
2. a kind of wind energy conversion system, which is characterized in that including blade tip as described in claim 1 be in double fork structure pneumatic equipment bladess,
Pod, generator, controller, battery, inverter and current loading；
The pod is located at the front end of affiliated blade, and affiliated generator is located at the rear portion of affiliated blade, the generator, institute
It states battery to be electrically connected with the controller, the battery, the current loading are connect with the inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821278205.6U CN208534691U (en) | 2018-07-31 | 2018-07-31 | Double V shape tip structure pneumatic equipment bladess and wind energy conversion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821278205.6U CN208534691U (en) | 2018-07-31 | 2018-07-31 | Double V shape tip structure pneumatic equipment bladess and wind energy conversion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208534691U true CN208534691U (en) | 2019-02-22 |
Family
ID=65378440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821278205.6U Expired - Fee Related CN208534691U (en) | 2018-07-31 | 2018-07-31 | Double V shape tip structure pneumatic equipment bladess and wind energy conversion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208534691U (en) |
-
2018
- 2018-07-31 CN CN201821278205.6U patent/CN208534691U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190222 Termination date: 20190731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |