CN211474324U - Wind power blade capable of improving generated energy of wind generating set - Google Patents
Wind power blade capable of improving generated energy of wind generating set Download PDFInfo
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- CN211474324U CN211474324U CN201922020135.5U CN201922020135U CN211474324U CN 211474324 U CN211474324 U CN 211474324U CN 201922020135 U CN201922020135 U CN 201922020135U CN 211474324 U CN211474324 U CN 211474324U
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- blade
- side wing
- blade body
- flank
- wind
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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 utility model discloses a can promote wind power generation set generated energy's wind-powered electricity generation blade, including the blade body, install the flank of inside cavity on the regional suction surface of blade root of blade body, the flank extends along blade chord length direction, nevertheless do not surpass blade root region, be connected through many vaulting poles between flank and the blade body, these many vaulting poles distribute along flank length direction, and the both ends of every vaulting pole are provided with a support that is used for increasing installation area of contact respectively, the vaulting pole is connected with blade body and flank respectively through its both ends support, bond together through the bonding glue between support and blade body or the flank, and can laminate the surface of blade body or flank completely. The utility model discloses an increase the flank on blade root region, can effectively increase the ability that the blade caught wind energy, restrain the air separation, prevent the cross-section stall, improve wind energy utilization efficiency to improve this target of unit generated energy.
Description
Technical Field
The utility model belongs to the technical field of wind power generation's technique and specifically relates to indicate a can promote wind power generation unit generated energy's wind-powered electricity generation blade.
Background
Wind power is considered one of the cleanest, most environmentally friendly energy sources presently available, and in recent years, wind power generation is becoming a hot tide around the world and is gaining more favor. The principle of wind power generation is that wind power is used for driving blades of a wind driven generator to rotate, and then the rotating speed is increased through a speed increaser to drive the generator to rotate for power generation. The kinetic energy of wind is converted into mechanical kinetic energy, and then the mechanical energy is converted into electric kinetic energy, namely wind power generation.
The blade is one of the most critical and important components in the wind generating set, and as a wind catching device in the set, the quality of the design scheme directly influences the conversion efficiency of wind energy, thereby influencing the annual generating capacity of the set and being an important part for the utilization of the wind energy. How to design a blade with excellent performance, and improve the wind energy utilization rate of a generator set, so as to improve the generated energy is always a significant difficulty in the design of a wind generating set.
The section attack angle of the blade close to the blade root is large and generally exceeds the static stall attack angle, dynamic stall can occur on part of the section under the influence of tower shadow effect, incoming flow turbulence, wind shear and the like, and meanwhile, the leeward side of the blade is easy to generate the airflow separation phenomenon.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art's shortcoming and not enough, provide a can promote wind power generation set generated energy's wind-powered electricity generation blade, through increase the flank on blade root region, can effectively increase the ability that the blade caught wind energy, restrain the air separation, prevent the cross-section stall, improve wind energy utilization efficiency to improve this target of unit generated energy.
In order to achieve the above object, the present invention provides a technical solution: the utility model provides a can promote wind power generation set generated energy's wind-powered electricity generation blade, includes the blade body install the flank of inside cavity on the regional suction surface of blade root of blade body, the flank extends along blade chord length direction, but does not surpass blade root region, be connected through many vaulting poles between flank and the blade body, these many vaulting poles distribute along flank length direction, and the both ends of every vaulting pole are provided with a support that is used for increasing installation area of contact respectively, the vaulting pole is connected with blade body and flank respectively through its both ends support, bond together through the bonding glue between support and blade body or the flank to can laminate the surface of blade body or flank completely.
Further, the side wing is of a laminar flow wing type, the relative thickness is smaller than 21%, namely the ratio of the maximum distance between the upper wing surface and the lower wing surface of the side wing to the chord length of the side wing is smaller than 21%, so that the air flow is not separated on the surface of the side wing.
Furthermore, the periphery of the bonding area of the blade body, the side wing and the support is fully coated with sealant, so that rainwater cannot enter the bonding area in the subsequent blade operation process.
Further, the surfaces of the support rod and the support are both subjected to rounding treatment so as to reduce the resistance to air flow.
Compared with the prior art, the utility model, have following advantage and beneficial effect:
1. the original structural form and the pneumatic appearance of the blade are not changed, and the blade is produced according to the original mode.
2. The overall aerodynamic performance of the blade can be effectively improved, and the generating capacity is improved.
3. The separation of the air flow in the trailing edge area of the suction surface of the blade root can be effectively inhibited.
Drawings
Fig. 1 is a schematic structural diagram of a wind turbine blade according to this embodiment.
Fig. 2 is a partial schematic view of a wind turbine blade according to this embodiment.
Fig. 3 is a second partial schematic view of the wind turbine blade according to the present embodiment.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
Referring to fig. 1 to 3, the wind turbine blade capable of improving the power generation of the wind turbine generator system provided by this embodiment includes a blade body 1, a side wing 2 is installed on a suction surface of a blade root region of the blade body 1, an internal cavity of the side wing 2 has a width of about 1m, and extends along a chord length direction of the blade (the length may be determined according to the length of the blade), but does not exceed the blade root region, a cross-sectional shape of the side wing is a laminar flow airfoil, a relative thickness is less than 21%, that is, a ratio of a maximum distance between an upper airfoil surface and a lower airfoil surface of the side wing to the chord length of the side wing is less than 21%, so as to ensure that an airflow is not separated on a surface of the side wing, the side wing 2 may use a glass fiber reinforced plastic or other light high-strength material, and is formed by hand; the side wing 2 is connected with the blade body 1 through a plurality of support rods 3, the support rods 3 are distributed along the length direction of the side wing, the support rods 3 can be made of light alloy, the height of each support rod is about 300mm, two ends of each support rod 3 are respectively provided with a support 4 for increasing the installation contact area, the support rods 3 are respectively connected with the blade body 1 and the side wing 2 through the support 4 at the two ends of each support rod, the support 4 and the blade body 1 or the side wing 2 are bonded together through bonding glue, the bonding effect can be better through a heating mode, finally, the periphery of the bonding area is coated with sealant, rainwater can not enter the bonding area in the subsequent blade operation process, in addition, the support 4 can be completely attached to the surface of the blade body 1 or the side wing 2, and the surfaces of the support rods 3 and the support 4 are required to be chamfered, so that when the airflow passes through, the resistance of the stay 3 and the support 4 to the air flow will be minimal.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that all the changes made according to the shape and principle of the present invention should be covered within the protection scope of the present invention.
Claims (4)
1. The utility model provides a can promote wind power generation set generated energy's wind-powered electricity generation blade, includes the blade body, its characterized in that: the suction surface of the blade root region of the blade body is provided with a side wing of an internal cavity, the side wing extends along the chord length direction of the blade but does not exceed the blade root region of the blade, the side wing is connected with the blade body through a plurality of support rods, the support rods are distributed along the length direction of the side wing, two ends of each support rod are respectively provided with a support used for increasing the installation contact area, the support rods are respectively connected with the blade body and the side wing through the supports at the two ends of the support rods, and the support seats are bonded with the blade body or the side wing through bonding glue and can be completely attached to the surface of the blade body or the side wing.
2. The wind power blade capable of improving the power generation capacity of the wind generating set according to claim 1, wherein: the side wing is of a laminar flow wing type, the relative thickness is smaller than 21%, namely the ratio of the maximum distance between the upper wing surface and the lower wing surface of the side wing to the chord length of the side wing is smaller than 21%, so that the air flow is not separated on the surface of the side wing.
3. The wind power blade capable of improving the power generation capacity of the wind generating set according to claim 1, wherein: the periphery of the bonding area of the blade body, the side wing and the support is fully coated with the sealant, so that rainwater cannot enter the bonding area in the subsequent blade operation process.
4. The wind power blade capable of improving the power generation capacity of the wind generating set according to claim 1, wherein: and the surfaces of the support rod and the support are both subjected to rounding treatment so as to reduce the resistance to air flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922020135.5U CN211474324U (en) | 2019-11-21 | 2019-11-21 | Wind power blade capable of improving generated energy of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922020135.5U CN211474324U (en) | 2019-11-21 | 2019-11-21 | Wind power blade capable of improving generated energy of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211474324U true CN211474324U (en) | 2020-09-11 |
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ID=72375106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922020135.5U Active CN211474324U (en) | 2019-11-21 | 2019-11-21 | Wind power blade capable of improving generated energy of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211474324U (en) |
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2019
- 2019-11-21 CN CN201922020135.5U patent/CN211474324U/en active Active
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