CN109931212A - A kind of blade of wind-driven generator denoising device and its noise-reduction method - Google Patents
A kind of blade of wind-driven generator denoising device and its noise-reduction method Download PDFInfo
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- CN109931212A CN109931212A CN201910276751.9A CN201910276751A CN109931212A CN 109931212 A CN109931212 A CN 109931212A CN 201910276751 A CN201910276751 A CN 201910276751A CN 109931212 A CN109931212 A CN 109931212A
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- blade
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- wind
- denoising device
- wing flap
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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
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Abstract
The present invention provides a kind of blade of wind-driven generator denoising device and its noise-reduction method, including wind electricity blade ontology, the wind electricity blade ontology is divided into bucket front point and bucket rear point, the bucket front is divided into the 2/3 of wind electricity blade body length, the bucket rear is divided into the remaining part of wind electricity blade ontology, one end that the wind electricity blade ontology is located at bucket rear point is provided with denoising device, the bucket rear divides side wall inner wall to offer the mounting groove to match with tip vane, the mounting groove is internally provided with battery, electric telescopic rod is connected between the mounting groove inner bottom wall and tip vane.The present invention is by being equipped with denoising device, be conducive to the generation for inhibiting flow-disturbing and vortex by tip vane, small-sized wing flap captures and guides eddy airstream, aerodynamic noise caused by the unsteady pressure of winglet sawtooth reduction blade surface and tail whirlpool, so that triplicity effectively carries out high-efficient noise-reducing to wind electricity blade ontology.
Description
Technical field
The present invention relates to blade of wind-driven generator noise reduction technology fields more particularly to a kind of blade of wind-driven generator noise reduction to fill
It sets and its noise-reduction method.
Background technique
A kind of clean reproducible energy that wind energy is in an emergency as solution conventional energy resource with global ecological environment deterioration problem,
The hot spot paid close attention to and developed as various countries' energy industry.The utilization of wind energy can be reduced the consumption of fossil energy, alleviate indirectly big
Gas pollution and water pollution, but deal with improperly, will increase noise pollution ".With China's installed capacity of wind-driven power and degree domestic
Constantly expand, the noise problem of wind electricity blade gradually displays, and interferes the work and life of people.
However, now to the noise reduction of wind electricity blade also in state is groped, be substantially mostly using vortex generator or
Sawtooth comes to wind electricity blade noise reduction, but both this prevents the noise that can only generate wind electricity blade from reducing part, and nothing
Method efficiently reduces the noise that wind electricity blade generates comprehensively.
Therefore, inventing a kind of blade of wind-driven generator denoising device and its noise-reduction method, have very much must to solve the above problems
It wants.
Summary of the invention
It is above-mentioned to solve the purpose of the present invention is to provide a kind of blade of wind-driven generator denoising device and its noise-reduction method
Technical problem.
The present invention using following technical scheme in order to solve the above technical problems, realized:
A kind of blade of wind-driven generator denoising device, including wind electricity blade ontology, the wind electricity blade ontology are divided into blade
Preceding part and bucket rear point, the bucket front is divided into the 2/3 of wind electricity blade body length, and the bucket rear is divided into wind-powered electricity generation
The remaining part of blade body, one end that the wind electricity blade ontology is located at bucket rear point are provided with denoising device.
Preferably, the denoising device includes tip vane, and it is small with blade tip that the bucket rear divides side wall inner wall to offer
The mounting groove that the wing matches, the mounting groove are internally provided with battery, connect between the mounting groove inner bottom wall and tip vane
It is connected to electric telescopic rod, the tip vane is located at the setting of one end outside mounting groove sensor noise.
Preferably, the mounting groove front side wall and rear wall offer locating slot, the locating slot internal slide connection
There is locating piece, the locating piece is fixedly connected with tip vane surface.
Preferably, one end that the tip vane is located at outside mounting groove is provided with winglet sawtooth, the winglet sawtooth with
It is connected between tip vane using seamless welding technology.
Preferably, the tip vane surface is provided with small-sized wing flap, and the tip vane surface offers and the small-sized flap
The wing flap groove that the wing matches is connected with spring between the small-sized wing flap bottom and wing flap groove inner bottom wall.
Preferably, the leading flank that the small-sized wing flap is located at one section of wing flap inside grooves is fixedly connected with limited with trailing flank
Position item, the outlet size of the wing flap groove and the thickness of small-sized wing flap match.
Preferably, what the bucket rear divided divides interlayer to be internally provided with noise abatement filler, and the noise abatement filler is using damping
Material is made, and the noise attenuation material is formed using vacuum fill method.
Preferably, bucket front point surface is provided with several groups vortex generator, vortex generator described in two adjacent groups it
Between be equidistant.
Preferably, the blade body side is provided with noise abatement sawtooth, and the noise abatement sawtooth and denoising device are the same side
Setting, it is equal with the quantity of bucket rear point that the noise abatement sawtooth is located at bucket front point.
Based on a kind of above-mentioned blade of wind-driven generator noise-reduction method comprising the steps of:
S1: first passing around vortex generator and noise abatement sawtooth, and the noise generated to wind electricity blade ontology weakens；
S2: in wind electricity blade use process, by the damping material of bucket rear point, vibration is generated to wind electricity blade ontology
Wave consumes mutually energy, keeps blade vibration weak, reduces noise；
S3: the noise after reduction, by sensor noise detect noise level, control electric telescopic rod by tip vane from
It is released inside mounting groove, in blade rotary motion, by the production for inhibiting flow-disturbing and vortex in blade tip installation tip vane
It is raw, blade aerodynamic performance is improved, running noises are reduced；
S4: when noise is excessive, tip vane is released until the pop-up of small-sized wing flap, captures and drawn by small-sized wing flap
Eddy airstream is led, its whirlpool intensity is weakened, reduces running noises.
The beneficial effects of the present invention are:
(1) by being conducive to be combined with each other by tip vane, small-sized wing flap and winglet sawtooth equipped with denoising device,
By inhibiting the generation of flow-disturbing and vortex in blade tip installation tip vane, small-sized wing flap captures and guides eddy airstream,
Winglet sawtooth changes the position that falls off in each section tail whirlpool, increases the distance between center of vorticity, reduces the unsteady of blade surface
Aerodynamic noise caused by pressure fluctuation and tail whirlpool, so that triplicity effectively carries out high-efficient noise-reducing to wind electricity blade ontology.
(2) by being equipped with noise abatement filler, be conducive to the damping material by bucket rear point, wind electricity blade ontology is generated
Vibration wave consumes mutually energy, keeps blade vibration weak, reduces noise.
(3) by being equipped with vortex generator and noise abatement sawtooth, be conducive to the large-scale noise for generating wind electricity blade ontology into
Row weakens, convenient for making the further noise abatement of subsequent denoising device.
Detailed description of the invention
Fig. 1 is the overall structure diagram of invention；
Fig. 2 is the portion A structural schematic diagram in Fig. 1 of invention；
Fig. 3 is the denoising device structural schematic diagram of invention.
In figure: 1, wind electricity blade ontology；2, bucket front point；3, bucket rear point；4, denoising device；5, tip vane；
6, mounting groove；7, battery；8, electric telescopic rod；9, sensor noise；10, locating slot；11, locating piece；12, winglet sawtooth；
13, small-sized wing flap；14, wing flap groove；15, spring；16, positive stop strip；17, noise abatement filler；18, vortex generator；19, noise abatement is sawed
Tooth.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained, and however, the following embodiments are merely preferred embodiments of the present invention, and not all.
Based on the implementation example in the implementation mode, those skilled in the art's obtained other realities without making creative work
Example is applied, protection scope of the present invention is belonged to.Experimental method in following embodiments is unless otherwise specified conventional method,
The materials, reagents and the like used in the following examples is commercially available unless otherwise specified.
Embodiment one:
The present invention provides a kind of blade of wind-driven generator denoising devices as shown in Figs. 1-3, including wind electricity blade ontology
1, the wind electricity blade ontology 1, which divides, divides 3 for bucket front point 2 and bucket rear, and the bucket front point 2 is wind electricity blade ontology
The 2/3 of 1 length, the bucket rear point 3 are the remaining part of wind electricity blade ontology 1, and the wind electricity blade ontology 1 is located at blade
One end of part 3 is provided with denoising device 4 afterwards, by being equipped with denoising device 4, is conducive to further to the wind electricity blade after noise reduction
Noise reduction, to reach high-efficient noise-reducing.
Further, in the above-mentioned technical solutions, the denoising device 4 includes tip vane 5, the bucket rear point 3
Side wall inner wall offers the mounting groove 6 to match with tip vane 5, and the mounting groove 6 is internally provided with battery 7, the peace
Electric telescopic rod 8 is connected between 6 inner bottom wall of tankage and tip vane 5, the tip vane 5 is located at one outside mounting groove 6
End setting sensor noise 9 detects the size of noise by sensor noise 9, so that the length of the stretching of tip vane 5 is controlled,
To reach more effectively to 1 noise reduction of wind electricity blade ontology.
Further, in the above-mentioned technical solutions, 6 front side wall of mounting groove and rear wall offer locating slot 10,
10 internal slide of locating slot is connected with locating piece 11, and the locating piece 11 is fixedly connected with 5 surface of tip vane, by setting
There are locating slot 10 and positioning wedged block, be conducive to the position of present tip vane 5, prevents tip vane 5 from shaking or deviating, influence
Noise reduction effect.
Further, in the above-mentioned technical solutions, one end that the tip vane 5 is located at outside mounting groove 6 is provided with small
Wing sawtooth 12, is connected between the winglet sawtooth 12 and tip vane 5 using seamless welding technology, and winglet sawtooth 12 changes each section
The position that falls off in face tail whirlpool, increases the distance between center of vorticity, reduces unsteady pressure and the tail whirlpool of blade surface
Caused aerodynamic noise.
Further, in the above-mentioned technical solutions, 5 surface of tip vane is provided with small-sized wing flap 13, by being equipped with
Small-sized wing flap 13 captures and guides eddy airstream, and 5 surface of tip vane offers the flap to match with small-sized wing flap 13
Wing groove 14 is connected with spring 15 between small-sized 13 bottom of wing flap and 14 inner bottom wall of wing flap groove.
Further, in the above-mentioned technical solutions, the small-sized wing flap 13 is located at the front side of 14 one section of inside of wing flap groove
Face and trailing flank are fixedly connected to positive stop strip 16, by being equipped with positive stop strip 16, are conducive to the position for limiting small-sized wing flap 13, prevent
Only small-sized wing flap 13 falls off, and small-sized wing flap 13 is arranged using trapezoid, and is gradient setting close to one end of wind electricity blade, has
It is withdrawn conducive to by small-sized wing flap 13, the outlet size of the wing flap groove 14 and the thickness of small-sized wing flap 13 match.
Further, in the above-mentioned technical solutions, the bucket rear points 3 divides interlayer to be internally provided with noise abatement filler
17, the noise abatement filler 17 is made of damping material, and the noise attenuation material is formed using vacuum fill method, is subtracted by being equipped with
It makes an uproar filler 17, is conducive to the damping material by bucket rear point 3, vibration wave is generated to wind electricity blade ontology 1 and consumes energy mutually
Amount, keeps blade vibration weak, reduces noise.
Further, in the above-mentioned technical solutions, 2 surfaces of bucket front point are provided with several groups vortex generator 18, phase
The distance between vortex generator 18 described in two groups adjacent is equal.
Further, in the above-mentioned technical solutions, the blade body side is provided with noise abatement sawtooth 19, the noise abatement saw
Tooth 19 and denoising device 4 are the same side setting, and the noise abatement sawtooth 19 is located at the quantity of bucket front point 2 with bucket rear point 3
It is equal, be conducive to the noise for one step ahead wind electricity blade being generated by vortex generator 18 and noise abatement sawtooth 19, after being convenient for
It is continuous to use the further noise reduction of denoising device 4.
Based on a kind of above-mentioned blade of wind-driven generator noise-reduction method comprising the steps of:
S1: first passing around vortex generator 18 and noise abatement sawtooth 19, and the noise generated to wind electricity blade ontology 1 is cut
It is weak；
S2: in wind electricity blade use process, by the damping material of bucket rear point 3, vibration is generated to wind electricity blade ontology 1
Dynamic wave consumes mutually energy, keeps blade vibration weak, reduces noise；
S3: the noise after reduction detects noise level by sensor noise 9, controls electric telescopic rod 8 for tip vane
5 release inside mounting groove 6, in blade rotary motion, by inhibiting flow-disturbing and vortex in blade tip installation tip vane 5
Generation, improve blade aerodynamic performance, reduce running noises；
S4: it when noise is excessive, by the release of tip vane 5 until small-sized wing flap 13 pops up, is caught by small-sized wing flap 13
Eddy airstream is caught and guided, its whirlpool intensity is weakened, reduces running noises.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (10)
1. a kind of blade of wind-driven generator denoising device, including wind electricity blade ontology (1), it is characterised in that: the wind electricity blade
Ontology (1) is divided into bucket front point (2) and bucket rear point (3), and the bucket front point (2) is long for wind electricity blade ontology (1)
The 2/3 of degree, the bucket rear point (3) are the remaining part of wind electricity blade ontology (1), and the wind electricity blade ontology (1) is located at
One end of bucket rear point (3) is provided with denoising device (4).
2. a kind of blade of wind-driven generator denoising device according to claim 1, it is characterised in that: the denoising device
It (4) include tip vane (5), the bucket rear point (3) side wall inner wall offers the mounting groove to match with tip vane (5)
(6), the mounting groove (6) is internally provided with battery (7), connects between mounting groove (6) inner bottom wall and tip vane (5)
Have electric telescopic rod (8), the tip vane (5) is located at external one end setting sensor noise (9) of mounting groove (6).
3. a kind of blade of wind-driven generator denoising device according to claim 2, it is characterised in that: the mounting groove (6)
Front side wall and rear wall offer locating slot (10), and locating slot (10) internal slide is connected with locating piece (11), described
Locating piece (11) is fixedly connected with tip vane (5) surface.
4. a kind of blade of wind-driven generator denoising device according to claim 2, it is characterised in that: the tip vane
(5) be located at mounting groove (6) external one end to be provided with winglet sawtooth (12), the winglet sawtooth (12) and tip vane (5) it
Between using seamless welding technology connect.
5. a kind of blade of wind-driven generator denoising device according to claim 2, it is characterised in that: the tip vane
(5) surface is provided with small-sized wing flap (13), and tip vane (5) surface offers the wing flap to match with small-sized wing flap (13)
Groove (14) is connected with spring (15) between small-sized wing flap (13) bottom and wing flap groove (14) inner bottom wall.
6. a kind of blade of wind-driven generator denoising device according to claim 5, it is characterised in that: the small-sized wing flap
(13) it is located at wing flap groove (14) internal one section leading flank and trailing flank is fixedly connected to positive stop strip (16), the wing flap is recessed
The outlet size of slot (14) and the thickness of small-sized wing flap (13) match.
7. a kind of blade of wind-driven generator denoising device according to claim 1, it is characterised in that: the bucket rear point
(3) divide interlayer to be internally provided with noise abatement filler (17), the noise abatement filler (17) is made of damping material, the noise abatement material
Material is formed using vacuum fill method.
8. a kind of blade of wind-driven generator denoising device according to claim 1, it is characterised in that: bucket front point (2)
Surface is provided with several groups vortex generator (18), and the distance between vortex generator (18) described in two adjacent groups is equal.
9. a kind of blade of wind-driven generator denoising device according to claim 1, it is characterised in that: the blade body one
Side is provided with noise abatement sawtooth (19), and the noise abatement sawtooth (19) and denoising device (4) are the same side setting, the noise abatement sawtooth
(19) it is equal with the bucket rear point quantity of (3) to be located at bucket front point (2).
10. a kind of described in any item blade of wind-driven generator noise-reduction methods of claim 1-9, comprising the following steps:
S1: first passing around vortex generator (18) and noise abatement sawtooth (19), and the noise generated to wind electricity blade ontology (1) is cut
It is weak；
S2: in wind electricity blade use process, by the damping material of bucket rear point (3), vibration is generated to wind electricity blade ontology (1)
Dynamic wave consumes mutually energy, keeps blade vibration weak, reduces noise.
S3: the noise after reduction detects noise level by sensor noise (9), controls electric telescopic rod (8) for tip vane
(5) it is released inside mounting groove (6), in blade rotary motion, by inhibiting flow-disturbing in blade tip installation tip vane (5)
With the generation of vortex, blade aerodynamic performance is improved, reduces running noises；
S4: when noise is excessive, tip vane (5) are released until small-sized wing flap (13) pop-up, comes by small-sized wing flap (13)
Eddy airstream is captured and guided, its whirlpool intensity is weakened, reduces running noises.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910276751.9A CN109931212A (en) | 2019-04-08 | 2019-04-08 | A kind of blade of wind-driven generator denoising device and its noise-reduction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910276751.9A CN109931212A (en) | 2019-04-08 | 2019-04-08 | A kind of blade of wind-driven generator denoising device and its noise-reduction method |
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| Publication Number | Publication Date |
|---|---|
| CN109931212A true CN109931212A (en) | 2019-06-25 |
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ID=66989381
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910276751.9A Pending CN109931212A (en) | 2019-04-08 | 2019-04-08 | A kind of blade of wind-driven generator denoising device and its noise-reduction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738319A (en) * | 2022-04-20 | 2022-07-12 | 浙江尚扬通风设备有限公司 | Low-noise axial flow fan and using method thereof |
| WO2023050619A1 (en) * | 2021-09-29 | 2023-04-06 | 江苏金风科技有限公司 | Vibration suppression device, blade, wind turbine, and vibration suppression method |
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| US20110285129A1 (en) * | 2008-10-23 | 2011-11-24 | Vestas Wind Systems A/S | wind turbine and a method for monitoring a wind turbine |
| US20170107969A1 (en) * | 2013-05-03 | 2017-04-20 | General Electric Company | Wind Turbine Rotor Blade Assembly with Surface Features |
| CN206753831U (en) * | 2017-05-06 | 2017-12-15 | 沂水盛荣新能源有限公司 | A kind of noise-reducing blade of wind-driven generator |
| CN107933884A (en) * | 2017-12-09 | 2018-04-20 | 佛山市神风航空科技有限公司 | A kind of Variable Geometry Wing |
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2019
- 2019-04-08 CN CN201910276751.9A patent/CN109931212A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110285129A1 (en) * | 2008-10-23 | 2011-11-24 | Vestas Wind Systems A/S | wind turbine and a method for monitoring a wind turbine |
| US20170107969A1 (en) * | 2013-05-03 | 2017-04-20 | General Electric Company | Wind Turbine Rotor Blade Assembly with Surface Features |
| CN206753831U (en) * | 2017-05-06 | 2017-12-15 | 沂水盛荣新能源有限公司 | A kind of noise-reducing blade of wind-driven generator |
| CN107933884A (en) * | 2017-12-09 | 2018-04-20 | 佛山市神风航空科技有限公司 | A kind of Variable Geometry Wing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023050619A1 (en) * | 2021-09-29 | 2023-04-06 | 江苏金风科技有限公司 | Vibration suppression device, blade, wind turbine, and vibration suppression method |
| CN114738319A (en) * | 2022-04-20 | 2022-07-12 | 浙江尚扬通风设备有限公司 | Low-noise axial flow fan and using method thereof |
| CN114738319B (en) * | 2022-04-20 | 2023-11-14 | 浙江尚扬通风设备有限公司 | Low-noise axial flow fan and using method thereof |
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Application publication date: 20190625 |