CN204783450U - Aerogenerator blade - Google Patents
Aerogenerator blade Download PDFInfo
- Publication number
- CN204783450U CN204783450U CN201520516082.5U CN201520516082U CN204783450U CN 204783450 U CN204783450 U CN 204783450U CN 201520516082 U CN201520516082 U CN 201520516082U CN 204783450 U CN204783450 U CN 204783450U
- Authority
- CN
- China
- Prior art keywords
- aerofoil profile
- blade
- maximum
- profound
- leading edge
- 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.)
- Withdrawn - After Issue
Links
Classifications
-
- 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
- Wind Motors (AREA)
Abstract
The utility model relates to an aerogenerator blade, it includes the blade body, still includes the rectangle end wing and is located the blade body and holds the changeover portion between the wing, wherein the length of the end wing is 2-4 times of width that are located the tip of changeover portion one side of blade body, the width of the end wing is used for 0.5-1 times of length of the end wing the utility model discloses to aerogenerator, can not form the vortex and produce the noise, because the rotational speed is high when the blade is rotatory moreover, the end wing of three blade can be similar to and form a ring, this ring is the horn mouth form, can produce the acceleration to the air current of blowing over to improve the vane efficieney, increased aerogenerator's power output.
Description
Technical field
The utility model relates to a kind of wind turbine equipment, more specifically to a kind of blade of wind-driven generator.
Background technique
At present, known middle-size and small-size wind turbines rotor part is made up of three blades, blade tip does not process, be naturally finish up by aerofoil profile, this kind of structure blade is in wind-driven generator high speed operation process, and air-flow easily forms eddy current at blade tip, eddy current now has certain energy, this energy is discharged by noise, thus forms noise pollution, makes this kind of wind-driven generator should not be arranged on residential belt or living area like this.
Model utility content
In order to overcome the problems referred to above that prior art exists, the utility model provides a kind of novel blade of wind-driven generator, the technological scheme that it adopts is: a kind of blade of wind-driven generator, comprise blade body, also comprise the rectangular end wing and the changeover portion between blade body and the end wing, the length of the wherein said end wing is 2 ~ 4 times that are positioned at the width of the end of changeover portion side of blade body, and the width of the described end wing is 0.5 ~ 1 times of the length of the end wing.
The utility model further technical characteristics is:
Described changeover portion is rounded transition.
The described end wing has along the first aerofoil profile on rectangle length direction with along the second aerofoil profile on rectangle width direction, first aerofoil profile extends along the width direction of described blade body, and the leading edge of described first aerofoil profile, trailing edge are corresponding with the leading edge of described blade body, trailing edge respectively, simultaneously, described second aerofoil profile extends along the thickness direction of blade body, and leading edge, the trailing edge of the second aerofoil profile are corresponding with the windward side on vane thickness direction and lee face respectively.
The maximum profound length of described first aerofoil profile is 2 ~ 4 times of the width of the described end of described blade body, first aerofoil profile maximum profound wide is 2 times of the thickness of the described end of described blade body, the maximum profound length of described second aerofoil profile is 0.5 ~ 1 times of the maximum profound length of described first aerofoil profile, and the second aerofoil profile maximum profound wide is the maximum profound wide 0.5 ~ 1 times of described first aerofoil profile.
Described leading edge, the trailing edge of described first aerofoil profile are all circular arc, and the circular arc place diameter of a circle of described leading edge is the maximum profound wide half of described first aerofoil profile.
Maximum profound wide 1/3rd maximum profound strong points being positioned at the described leading edge of distance the first aerofoil profile of described first aerofoil profile.
Described leading edge, the trailing edge of described second aerofoil profile are all circular arc, and the circular arc place diameter of a circle of described leading edge is the maximum profound wide half of described second aerofoil profile.
Maximum profound wide 1/3rd maximum profound strong points being positioned at the described leading edge of distance the second aerofoil profile of described second aerofoil profile.
The beneficial effects of the utility model are:
Because blade of wind-driven generator described in the utility model also comprises the rectangular end wing and the changeover portion between blade body and the end wing, air-flow blows to after on blade, along blade surface by being diffused away through the end wing again after changeover portion, can not eddy current be formed and produce noise, and because rotating speed is high during blade rotary, the end wing of three blades can be similar to formation annulus, again because the end wing has the first aerofoil profile and the second airfoil structure, the annulus formed in three blade rotation processes is made to become a bell mouth shape, this shape makes the front and back air-flow flowing through the end wing produce pressure difference, this pressure difference adds the flowing velocity of air-flow, improve the kinetic energy of air-flow, thus improve blade efficiency, add the power stage of wind-driven generator.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present utility model;
Fig. 2 is the schematic diagram of the utility model on width of blade direction;
Fig. 3 is the schematic diagram of the utility model on vane thickness direction.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in Figure 1, a kind of blade of wind-driven generator, comprise blade body 1, also comprise the rectangular end wing 2 and the changeover portion 3 between blade body 1 and the end wing 2, the length of the wherein said end wing is 2 ~ 4 times that are positioned at the width a of the end of changeover portion side of blade body, and the width of the described end wing is 0.5 ~ 1 times of the length of the end wing.Can see in the embodiment shown in Fig. 2 Fig. 3, changeover portion 3 is rounded transition.
Shown in Fig. 1, Fig. 2, Fig. 3, the end wing has along the first aerofoil profile 201 on rectangle length direction with along the second aerofoil profile 202 on rectangle width direction, first aerofoil profile 201 extends along the width direction of described blade body 1, and the leading edge of described first aerofoil profile 201, trailing edge are corresponding with the leading edge of described blade body 1, trailing edge respectively, simultaneously, described second aerofoil profile 202 extends along the thickness direction of blade body, and leading edge, the trailing edge of the second aerofoil profile 202 are corresponding with the windward side 101 on vane thickness direction and lee face 102 respectively.
In actual applications, the maximum profound length of described first aerofoil profile 201 is 2 ~ 4 times of the width a of the described end of described blade body 1, first aerofoil profile 201 maximum profound wide is 2 times of the thickness of the described end of described blade body, the maximum profound length of described second aerofoil profile 202 is 0.5 ~ 1 times of the maximum profound length of described first aerofoil profile 201, and the second aerofoil profile 202 maximum profound wide is the maximum profound wide 0.5 ~ 1 times of described first aerofoil profile.
Described leading edge, the trailing edge of described first aerofoil profile 201 are all circular arc, and the circular arc place diameter of a circle of described leading edge is the maximum profound wide half of described first aerofoil profile.
Maximum profound wide 1/3rd maximum profound strong points being positioned at the described leading edge of distance the first aerofoil profile 201 of described first aerofoil profile 201.
Described leading edge, the trailing edge of described second aerofoil profile 202 are all circular arc, and the circular arc place diameter of a circle of described leading edge is the maximum profound wide half of described second aerofoil profile 202.
Maximum profound wide 1/3rd maximum profound strong points being positioned at the described leading edge of distance the second aerofoil profile 202 of described second aerofoil profile 202.
In practical operation, the end wing, after being interweaved by the first aerofoil profile 201 and the second aerofoil profile 202, gets its public part and form.
Because blade of wind-driven generator described in the utility model also comprises the rectangular end wing 2 and the changeover portion 3 between blade body 1 and the end wing 2, air-flow blows to after on blade, along blade surface by being diffused away through the end wing 2 again after changeover portion 3, can not eddy current be formed and produce noise, and because rotating speed is high during blade rotary, the end wing 2 of three blades can be similar to formation annulus, again because the end wing 2 has the first aerofoil profile 201 and the second aerofoil profile 202 structure, the annulus formed in three blade rotation processes is made to become a bell mouth shape, this shape makes the front and back air-flow flowing through the end wing 2 produce pressure difference, this pressure difference adds the flowing velocity of air-flow, improve the kinetic energy of air-flow, thus improve blade efficiency, add the power stage of wind-driven generator.
Although describe embodiment herein, should be understood that, mode of execution disclosed is here only exemplary of the present utility model, and it can be presented as various forms.Therefore, here the detail disclosed is not considered to restrictive, and be only as the basis of claim and as instructing those skilled in the art differently to apply representational basis of the present utility model in appropriate mode any in reality, the various features comprising employing disclosed here also combine the feature that may clearly not disclose here.Protection domain of the present utility model is as the criterion with claims.
Claims (8)
1. a blade of wind-driven generator, comprise blade body, it is characterized in that: also comprise the rectangular end wing and the changeover portion between blade body and the end wing, the length of the wherein said end wing is 2 ~ 4 times that are positioned at the width of the end of changeover portion side of blade body, and the width of the described end wing is 0.5 ~ 1 times of the length of the end wing.
2. blade of wind-driven generator as claimed in claim 1, is characterized in that: described changeover portion is rounded transition.
3. blade of wind-driven generator as claimed in claim 1, it is characterized in that: the described end wing has along the first aerofoil profile on rectangle length direction with along the second aerofoil profile on rectangle width direction, first aerofoil profile extends along the width direction of described blade body, and the leading edge of described first aerofoil profile, trailing edge are corresponding with the leading edge of described blade body, trailing edge respectively, simultaneously, described second aerofoil profile extends along the thickness direction of blade body, and leading edge, the trailing edge of the second aerofoil profile are corresponding with the windward side on vane thickness direction and lee face respectively.
4. blade of wind-driven generator as claimed in claim 3, it is characterized in that: the maximum profound length of described first aerofoil profile is 2 ~ 4 times of the width of the described end of described blade body, first aerofoil profile maximum profound wide is 2 times of the thickness of the described end of described blade body, the maximum profound length of described second aerofoil profile is 0.5 ~ 1 times of the maximum profound length of described first aerofoil profile, and the second aerofoil profile maximum profound wide is the maximum profound wide 0.5 ~ 1 times of described first aerofoil profile.
5. the blade of wind-driven generator as described in power claim 3 or 4, it is characterized in that: described leading edge, the trailing edge of described first aerofoil profile are all circular arc, the circular arc place diameter of a circle of described leading edge is the maximum profound wide half of described first aerofoil profile.
6. as power blade of wind-driven generator according to claim 5, it is characterized in that: maximum profound wide 1/3rd maximum profound strong points being positioned at the described leading edge of distance the first aerofoil profile of described first aerofoil profile.
7. the blade of wind-driven generator as described in power claim 3 or 4, it is characterized in that: described leading edge, the trailing edge of described second aerofoil profile are all circular arc, the circular arc place diameter of a circle of described leading edge is the maximum profound wide half of described second aerofoil profile.
8. as power blade of wind-driven generator according to claim 7, it is characterized in that: maximum profound wide 1/3rd maximum profound strong points being positioned at the described leading edge of distance the second aerofoil profile of described second aerofoil profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520516082.5U CN204783450U (en) | 2015-07-16 | 2015-07-16 | Aerogenerator blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520516082.5U CN204783450U (en) | 2015-07-16 | 2015-07-16 | Aerogenerator blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783450U true CN204783450U (en) | 2015-11-18 |
Family
ID=54523511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520516082.5U Withdrawn - After Issue CN204783450U (en) | 2015-07-16 | 2015-07-16 | Aerogenerator blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204783450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963807A (en) * | 2015-07-16 | 2015-10-07 | 青岛安华新元风能股份有限公司 | Wind driven generator blade |
-
2015
- 2015-07-16 CN CN201520516082.5U patent/CN204783450U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963807A (en) * | 2015-07-16 | 2015-10-07 | 青岛安华新元风能股份有限公司 | Wind driven generator blade |
| CN104963807B (en) * | 2015-07-16 | 2017-08-22 | 青岛安华新元风能股份有限公司 | Blade of wind-driven generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3037656B1 (en) | Rotor blade with vortex generators | |
| US10690112B2 (en) | Fluid turbine rotor blade with winglet design | |
| CN202065123U (en) | Combined efficient vertical axis wind driven generator | |
| JP5701204B2 (en) | Apparatus blade for generating energy from fluid and apparatus comprising a rotor using the blade | |
| CN105804955B (en) | Blade for wind generating set and wind generating set | |
| CN207892890U (en) | The double-deck fan blade and fan | |
| CN204783450U (en) | Aerogenerator blade | |
| CN101509464A (en) | Passive jet method and device for enhancing vertical shaft wind mill performance | |
| CN204783449U (en) | Wind power generator | |
| CN203515955U (en) | Thickened high-aerodynamic-performance wind turbine blade | |
| JP2017166324A (en) | T-type leading end blade for turbine | |
| CN109737004A (en) | It improves the standard the method for axis pneumatic equipment bladess starting performance by adjusting blade camber | |
| CN113357080B (en) | Wind-powered electricity generation blade ring volume control system that blows | |
| CN102588188B (en) | Airfoil for variable geometry current generating water turbine | |
| CN104963807B (en) | Blade of wind-driven generator | |
| CN105422381B (en) | The more rotor resistance type vertical shaft wind driven generators of cumulative | |
| CN204755184U (en) | Take vertical axis wind turbine blade of water conservancy diversion strip | |
| CN110566400B (en) | Horizontal shaft wind turbine blade | |
| CN203441675U (en) | Blade of novel horizontal-axis wind turbine | |
| CN103410685B (en) | A kind of high aerodynamic performance wind turbine blade | |
| CN201874756U (en) | Diffusion type wind wheel | |
| CN203702452U (en) | High-performance ring wing type blade of wind turbine | |
| CN103423083B (en) | A kind of thickening type high aerodynamic performance wind turbine blade | |
| CN106704091A (en) | Blade used for wind power water lifting machine and provided with gurney flaps and wind wheel | |
| CN207620966U (en) | A kind of fan for wind-power electricity generation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20170822 |
|
| AV01 | Patent right actively abandoned |