CN200952450Y - Wind wheel blade for wind-mill generator - Google Patents
Wind wheel blade for wind-mill generator Download PDFInfo
- Publication number
- CN200952450Y CN200952450Y CNU2006200050779U CN200620005077U CN200952450Y CN 200952450 Y CN200952450 Y CN 200952450Y CN U2006200050779 U CNU2006200050779 U CN U2006200050779U CN 200620005077 U CN200620005077 U CN 200620005077U CN 200952450 Y CN200952450 Y CN 200952450Y
- Authority
- CN
- China
- Prior art keywords
- wind
- blade
- air
- wind wheel
- driven generator
- 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.)
- Expired - Fee Related
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Classifications
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Abstract
The utility model belongs to technical field of miniature wind-driven generator. The wind-driven generator in the utility model includes a wind wheel blade with a shape similar to that of conventional aerofoil, and a hollow shell provided with an air cavity (2), an air inlet (3) and an exhaust nozzle (4). When the wind wheel blade is rotating, air in the wind wheel blade is subjected to centrifugal action of the rotating blade, and external air is sucked into the air cavity via the air inlet, compressed, and discharged in high speed via the exhaust nozzle which is arranged at point end of the blade. Since counteracting force of the air which is jet out via the exhaust nozzle arranged at point end of the blade forms tangent line of the rotating direction of the blade, rotating angular velocity of the blade is improved greatly, starting wind speed of the wind-driven generator is reduced effectively, electricity generation with breeze is realized, and wind energy utilization degree is increased.
Description
Technical field
The utility model belongs to the small-sized wind power generator technical field, the novel wind wheel blade of specifically a kind of wind-driven generator.
Background technique
Wind energy is renewable, pollution-free, use not to the utmost, inexhaustible new energy, can be referred to as " green energy resource ".Wind energy resources can be divided into aboundresources district, abundant district, can utilize district and poor district in the distribution situation of China.Abundant area accounts for national scholar ground area 8%, abundant area 18%.Account for 74% and can utilize with poor district.Its mean wind velocity is below 3.5m/s～3m/s.＜2000 hours/year.Wind generating technology is very difficult.For the wide geographic area that makes China can both be used wind generating technology, it is very necessary reducing wind wheel starting wind velocity and generator superpressure generating wind speed (or claiming the breeze wind technology).
Wind generating technology is after having adopted the aviation wing, and the performance of wind-driven generator has had very big raising.But aerofoil profile fan blade resistance reduces, and lift increases, if wind speed is difficult to starting less than 3m/s.Therefore the utility model has proposed new wind wheel blade organization plan in order to overcome the deficiency of above-mentioned aerofoil profile fan blade on the basis of existing aviation wing.
Summary of the invention
The purpose of this utility model provides a kind of wind wheel blade of wind-driven generator, has realized promptly turning under the gentle breeze, drives wind-driven generator and generates electricity.
A kind of wind wheel blade of wind-driven generator, shape is characterized in that as traditional air-foil: shell (1) is hollow shape, and air cavity (2), suction port (3), exhaust nozzle (4) are arranged on the shell (1).
Exhaust nozzle (4) is positioned at the blade tip.
Exhaust nozzle (4) is positioned at the reciprocal tangent position of wind wheel blade tip along the blade rotation.
Suction port (3) is positioned at propeller shank.
When the wind wheel blade that the utility model provides rotated with a certain angular velocity, the air in the wind wheel blade was subjected to the centrifugal action of blade rotation, and ambient air is sucked air cavity and compression from suction port.Angular velocity of rotation is big more, and is far away more from propeller shank, and the compressive force that the air in the hollow paddle is subjected to is big more, and the most advanced and sophisticated exhaust nozzle of the blade speed of giving vent to anger is high more.
The reaction force and the blade sense of rotation tangentially shape of the most advanced and sophisticated exhaust nozzle high speed jet of blade, the angular velocity of blade rotation will be accelerated greatly, the wind-driven generator starting wind velocity is incited somebody to action reduction effectively, thereby has realized the wind-driven generator that gentle breeze can generate electricity, and increases the degree of utilizing of wind energy.
Description of drawings
Fig. 1 is a model utility wind turbines rotor blade structural representation.
Fig. 2 is a wind wheel blade A--A schematic cross-section.
1 is wind wheel blade shell, and 2 is air cavity, and 3 is suction port, and 4 is exhaust nozzle.
Embodiment
As shown in Figure 1, a kind of wind wheel blade of wind-driven generator, shape is as traditional air-foil, and shell (1) is hollow shape, and air cavity (2), suction port (3), exhaust nozzle (4) are arranged on the shell (1).Exhaust nozzle (4) is positioned at the blade tip, and exhaust nozzle (4) is positioned at the reciprocal tangent position of wind wheel blade tip along the blade rotation; Suction port (3) is positioned at propeller shank.
Blade is to be air cavity 2 in the middle of the hollow type, gentle breeze blows, the drive wind wheel rotates, and air sucks blade air cavity 2 by blade air inlet 3, because the centrifugal action of blade rotation, the centrifugal force that air is produced from the propeller shank to the tip is more and more stronger, the air draught speed of the exhaust nozzle 4 of blade bit point is constantly raise, and the reaction of direction that acts on blade rotation is also increasing, and wind wheel rotates and then can start from low speed, gradually rise, up to a certain state of equilibrium.
This wind turbines rotor design starting wind velocity is 2.5～3m/s, but average operating air velocity can be below 2.5m/s, because natural speed air flow instability, mean wind velocity 2m/s, fitful wind then can reach 3～4m/s, and the utility model is because by the centrifugal force pulls wind wheel rotation of blade, so as long as there is fitful wind to help the wind wheel starting, wind wheel just can drive generator for electricity generation in gentle breeze.
That the operable material of wind wheel blade shell comprises is wooden, irony, aluminum alloy, glass fibre reinforced plastics is compound and full nylon section bar material etc., decides on foreign matter character contained in the local air.
Claims (4)
1, a kind of wind wheel blade of wind-driven generator is characterized in that: shell (1) is hollow shape, and air cavity (2), suction port (3), exhaust nozzle (4) are arranged on the shell (1).
2, the wind wheel blade of wind-driven generator as claimed in claim 1 is characterized in that: exhaust nozzle (4) is positioned at the blade tip.
3, the wind wheel blade of wind-driven generator as claimed in claim 1 is characterized in that: exhaust nozzle (4) is positioned at the reciprocal tangent position of wind wheel blade tip along the blade rotation.
4, the wind wheel blade of wind-driven generator as claimed in claim 1 is characterized in that: suction port (3) is positioned at propeller shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200050779U CN200952450Y (en) | 2006-02-06 | 2006-02-06 | Wind wheel blade for wind-mill generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200050779U CN200952450Y (en) | 2006-02-06 | 2006-02-06 | Wind wheel blade for wind-mill generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200952450Y true CN200952450Y (en) | 2007-09-26 |
Family
ID=38810751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200050779U Expired - Fee Related CN200952450Y (en) | 2006-02-06 | 2006-02-06 | Wind wheel blade for wind-mill generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200952450Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956675A (en) * | 2010-10-28 | 2011-01-26 | 马可超 | Jet-propelled wind driven generator |
| WO2011079519A1 (en) * | 2009-12-28 | 2011-07-07 | Huang Defeng | Hydrodynamic method and traffic tool using the same |
-
2006
- 2006-02-06 CN CNU2006200050779U patent/CN200952450Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011079519A1 (en) * | 2009-12-28 | 2011-07-07 | Huang Defeng | Hydrodynamic method and traffic tool using the same |
| CN101956675A (en) * | 2010-10-28 | 2011-01-26 | 马可超 | Jet-propelled wind driven generator |
| CN101956675B (en) * | 2010-10-28 | 2012-06-20 | 马可超 | Jet-propelled wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Jinyu Sci. & Tech. Development Co., Ltd., Zhuhai City Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Jinyu Sci. & Tech. Development Co., Ltd., Zhuhai City Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070926 Termination date: 20150206 |
|
| EXPY | Termination of patent right or utility model |