CN113775470A - Wind wheel wind turbine generator and fan blade thereof - Google Patents
Wind wheel wind turbine generator and fan blade thereof Download PDFInfo
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- CN113775470A CN113775470A CN202111117042.XA CN202111117042A CN113775470A CN 113775470 A CN113775470 A CN 113775470A CN 202111117042 A CN202111117042 A CN 202111117042A CN 113775470 A CN113775470 A CN 113775470A
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- fan blade
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- intelligent tail
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- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
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- 230000003111 delayed effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
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- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0236—Adjusting aerodynamic properties of the blades by changing the active surface of the wind engaging parts, e.g. reefing or furling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a wind wheel wind turbine generator and a fan blade thereof, which is characterized by comprising: a fan blade main body; the intelligent tail wing that can self-adaptation warp, the intelligence tail wing is installed the free end of fan blade main part just is located fan blade main part direction of rotation side. The intelligent tail wing is arranged at the free end of the fan blade main body and is positioned on the side surface of the fan blade main body in the rotating direction, and when the wind speed is higher under the action of the self-adaptive deformability of the intelligent tail wing, the intelligent tail wing can deform under the action of wind, so that the wind is guided, the impact of the wind on the fan blade main body is reduced, and the fan blade main body is further protected; in addition, because this intelligence fin is the flexible member, can in time respond when wind-force changes, reach the effect that fast speed is fallen and carries to the fan blade main part of further protection.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a wind wheel wind turbine generator set and blades thereof.
Background
Energy is the prime motive force for the development and economic growth of human society. The energy structure mainly using fossil fuel not only has difficult resource support, but also brings serious problems to the environment, and particularly brings a series of ecological and environmental problems due to global climate change caused by greenhouse gas emission. The solution to this problem is to develop clean renewable energy.
Among renewable energy sources, wind power has the most commercial development conditions, except for hydroelectric power. The wind energy is used as an environment-friendly renewable energy source, and the development and the utilization of the wind energy not only can relieve the world energy crisis, but also has the incomparable advantages of the conventional fossil energy source, so that the wind wheel fan is applied and rapidly developed.
At present, a wind wheel fan converts a fan into mechanical energy of fan blades and then converts the mechanical energy and electric energy, so that the utilization of wind energy is realized. However, in the process of rotating the wind wheel by blowing wind, the wind wheel is of a rigid connection structure due to the fact that the size and direction of the wind may be suddenly changed, and the process of the direction conversion of the wind wheel is seriously delayed, so that the wind wheel of the existing wind wheel fan has a large risk of damage.
Therefore, how to provide a fan blade of a wind wheel fan to improve the safety of the fan blade is a problem to be solved urgently by the technical field.
Disclosure of Invention
In view of this, the invention provides a fan blade of a wind turbine and wind turbine generator set, so as to improve the safety of the fan blade. In addition, the invention also provides a wind wheel wind turbine generator with the fan blade.
In order to achieve the purpose, the invention provides the following technical scheme:
a fan blade of a wind turbine generator system comprises:
a fan blade main body;
the intelligent tail wing that can self-adaptation warp, the intelligence tail wing is installed the free end of fan blade main part just is located fan blade main part direction of rotation side.
Preferably, in the above-mentioned air vane, the intelligent tail wing is a structural member or a silica gel member processed by filling epoxy resin in the middle of three layers of carbon fiber cloth.
Preferably, in the above-mentioned fan blade, the intelligent tail wing is connected with the fan blade main body in an adhesive manner.
Preferably, in the above-mentioned fan blade, the cross section of the intelligent tail wing is triangular, and the fan blade main body is inserted into the intelligent tail wing, and the lap joint of the intelligent tail wing and the fan blade main body is bonded.
Preferably, in the above-mentioned fan blade, the faying surface of the intelligent tail wing at the faying joint of the intelligent tail wing and the fan blade main body is attached to the faying surface of the fan blade main body, and the faying length of the fan blade main body is not less than 10 cm.
Preferably, in the above-mentioned fan blade, the length of the intelligent tail wing along the fan blade main body is 15% -25% of the length of the fan blade main body, and the intelligent tail wing has a preset distance from the blade tip of the fan blade main body.
Preferably, in the above-mentioned wind blade, the wind blade main body includes a front wind wheel blade and a rear wind wheel blade that are arranged along the axial direction of the rotation plane, and the intelligent tail wing is installed on both the front wind wheel blade and the rear wind wheel blade.
Preferably, in the above wind blade, the front wind blade includes:
the rotating section is used for being connected with the rotating shaft;
the assembling section is used for installing the intelligent tail wing, the assembling section is provided with an inclined side surface which gradually expands from the blade tip to the direction far away from the blade tip, and the intelligent tail wing is installed on the inclined side surface;
connect the straight section of rotation section and assembly section, just the rotation section with straight section junction passes through the inclined plane and connects, the inclination of inclined plane for the horizontal plane is less than the inclination of slope side for the horizontal plane.
Preferably, in the above-mentioned wind wheel, the side surface of the rear wind wheel blade in the rotation direction includes a divergent section, a convergent section and a plane section which are sequentially connected from the blade tip to the direction far away from the blade tip.
The wind wheel wind turbine generator set comprises a fan blade, wherein the fan blade is any one of the fan blades.
The invention provides a fan blade of a wind wheel wind turbine generator, wherein an intelligent tail wing is arranged at the free end of a fan blade main body and is positioned on the side surface of the rotation direction of the fan blade main body, and under the action of the self-adaptive deformation capability of the intelligent tail wing, when the wind speed is higher, the intelligent tail wing deforms under the action of wind, so that the wind is guided, the impact of the wind on the fan blade main body is reduced, and the fan blade main body is further protected; in addition, because this intelligence fin is the flexible member, can in time respond when wind-force changes, reach the effect that fast speed is fallen and carries to the fan blade main part of further protection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first fan blade main body provided with an intelligent tail wing in the embodiment of the invention;
fig. 2 is a schematic structural diagram of a second fan blade main body provided with an intelligent tail wing in the embodiment of the invention;
FIG. 3 is an enlarged view of a portion of the intelligent tail disclosed in an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an intelligent empennage with an undeformed cross section of a wind turbine disclosed in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a deformed intelligent tail of a cross section of a wind turbine disclosed in the embodiment of the present invention.
Detailed Description
The invention discloses a fan blade of a wind turbine and wind turbine generator set, which aims to improve the safety of the fan blade. In addition, the invention also discloses a wind wheel wind turbine generator with the fan blade.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-5, the present application discloses a blade of a wind turbine generator, comprising: fan blade main part 1 and intelligent fin 2. The wind energy is converted into mechanical energy for rotating the wind blade main body 1, and then the mechanical energy is converted into electric energy for storage and utilization. The intelligent tail wing 2 is a structural member capable of deforming in a self-adaptive manner, namely a flexible member, and the intelligent tail wing 2 is arranged at the free end of the fan blade main body 1 and is positioned on the side surface of the fan blade main body 1 in the rotating direction. When the wind speed is high, the intelligent tail wing 2 deforms due to wind, so that wind is guided, the impact of the wind on the fan blade main body is reduced, and the fan blade main body 1 is protected; in addition, because this intelligent fin 2 is the flexible member, can in time respond when wind-force changes, reach the effect that fast speed is fallen and carry to further protected fan blade main part 1.
In a specific embodiment, the intelligent tail wing 2 is a structural member processed by pouring epoxy resin into the middle of three layers of carbon fiber cloth or a silicone member. The specific material of the intelligent tail 2 can be set according to different requirements, and it is required to ensure that the intelligent tail 2 is a flexible part. Specifically, three layers of carbon fiber cloth are arranged in parallel, and epoxy resin is poured between the adjacent carbon fiber cloth, so that the required intelligent tail wing 2 is processed. In practice, the intelligent tail wing 2 can be set to be a silica gel piece, so that the flexibility is guaranteed, the strength is guaranteed, and the weight of the intelligent tail wing 2 needs to be reduced. The thickness and the size of the intelligent tail 2 can be set according to different requirements and are all within the protection range.
Foretell intelligence fin 2 and fan blade main part 1 adhesive bonding are connected, disclose an intelligence fin 2 and fan blade main part 1 connected mode here, adopt the adhesive bonding mode can avoid destroying fan blade main part 1, can also guarantee the stability of connecting. Those skilled in the art will understand that the connection mode of the intelligent tail wing 2 and the fan blade main body 1 can also adopt a clamping connection or a threaded connection, but the connection mode may have the problem of stress concentration, so that the connection position is damaged, and therefore, the bonding mode is preferably adopted.
In a further embodiment, the cross section of the intelligent tail wing 2 is triangular, the fan blade main body 1 is inserted into the intelligent tail wing 2, and the lap joint of the intelligent tail wing 2 and the fan blade main body 1 is bonded. The intelligent tail wing 2 is arranged into a triangular structural part, so that one end far away from the fan blade main body 1 is thinner and easier to deform; and the thickness of the end close to the main body 1 of the fan blade is thicker, and the main body 1 of the fan blade is inserted into the intelligent tail wing 2, so that the connecting surface of the main body of the fan blade and the intelligent tail wing is enlarged, and the connection is more reliable. The whole triangle can guide the flow of the two sides of the wind direction triangle, so that the direct blowing of wind power is avoided, and the fan blade main body 1 is further protected. In practice, the intelligent empennage 2 with other cross section shapes can be selected according to different requirements, and the protection range is wide.
The lap joint of intelligence fin 2 in this application and fan blade main part 1 is formed by the faying surface of intelligence fin 2 and the faying surface laminating of fan blade main part 1, and intelligence fin 2 is 0 with 1 contained angle of fan blade main part promptly to reduce the windage. And the overlapping length of the fan blade main body 1 is not less than 10 cm. In practice, the working length of the intelligent tail wing 2 can be set to be 20cm, the specific working length needs to be set by combining the size of the fan blade main body 1, and the relationship between the two can be in a direct proportion relationship.
In order to further optimize the technical scheme, the length of the intelligent tail wing 2 along the fan blade main body 1 is set to be 15% -25% of the length of the fan blade main body 1, and the intelligent tail wing 2 has a preset distance from the blade tip of the fan blade main body 1. Preferably, the length of the intelligent tail wing 2 along the fan blade main body 1 is set to be 20% of the length of the fan blade main body 1, and the total length of the intelligent tail wing 2 accounts for 20% of the length of the fan blade main body, so that the rapid load reduction effect can be met, and materials can be saved. Since the maximum load position of the fan blade body 1 is about 75% of the position of the blade, the intelligent tail wing 2 is arranged at the position most scientifically. In practice, the preset distance from the intelligent tail 2 to the blade tip can be set to be about 1 meter.
In a further embodiment, the fan blade body 1 includes a front wind wheel blade (as shown in fig. 1) and a rear wind wheel blade (as shown in fig. 2) which are axially arranged along a rotation plane, and the front wind wheel blade and the rear wind wheel blade are both provided with the intelligent tail wing 2. The fan blade main bodies 1 are arranged into two groups, so that disturbance to wind flow can be increased, and the fan blade main bodies 1 are protected. The intelligent empennages 2 are arranged on the front wind wheel blades and the rear wind wheel blades, so that the front wind wheel blades and the rear wind wheel blades can be protected, and the service life of the device is prolonged.
In a specific embodiment, the front wind wheel blade includes a rotating section, an assembling section and a flat section. Wherein, the rotating section is used for being connected with the rotating shaft, and the assembling section is used for installing the intelligent tail wing 2; the assembly section is provided with an inclined side surface which gradually expands from the blade tip to the direction far away from the blade tip, and the intelligent tail wing 2 is arranged on the inclined side surface; the straight section is connected the rotation section and is assembled the section to the rotation section passes through the inclined plane with straight section junction and is connected, and the inclination of inclined plane for the horizontal plane is less than the inclination of slope side for the horizontal plane. The wind wheel wind turbine generator set has the advantages that the front wind wheel blades are limited, the diameter of the straight section in the middle of the front wind wheel blades is set to be smaller than the rotating section and the assembling section, more fluid flows through the front wind wheel conveniently, the rear wind wheel can absorb more energy, and the generating efficiency of the double-wind-wheel wind turbine generator set is higher.
In a further embodiment, the side surface of the rear wind wheel blade in the rotation direction includes a divergent section, a convergent section and a plane section which are sequentially connected from the blade tip to the direction far away from the blade tip. The specific shapes of the front wind wheel blade and the rear wind wheel blade can be set according to different requirements, and the core of the application lies in that the intelligent tail wing 2 is arranged on the blade main body, so that the blades provided with the intelligent tail wing 2 are all in a protection range.
In addition, this application still discloses a wind wheel wind turbine generator system, including the fan blade, it is specific, this fan blade is the wind wheel wind turbine generator system that discloses in the above-mentioned embodiment, consequently, the wind wheel wind turbine generator system that has this fan blade also has all above-mentioned technological effects, no longer gives unnecessary detail here.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a fan blade of wind wheel wind turbine generator system which characterized in that includes:
a fan blade main body;
the intelligent tail wing that can self-adaptation warp, the intelligence tail wing is installed the free end of fan blade main part just is located fan blade main part direction of rotation side.
2. The fan blade according to claim 1, wherein the intelligent tail fin is a structural member or a silica gel member processed by pouring epoxy resin in the middle of three layers of carbon fiber cloth.
3. The fan blade of claim 1, wherein the intelligent tail is adhesively connected to the fan blade body.
4. The fan blade of claim 3, wherein the cross section of the intelligent tail is triangular, the fan blade main body is inserted into the intelligent tail, and the lap joint of the intelligent tail and the fan blade main body is bonded.
5. The fan blade according to claim 4, wherein a faying surface of the intelligent tail fin at a faying position of the intelligent tail fin and the fan blade main body is attached to a faying surface of the fan blade main body, and the faying length of the fan blade main body is not less than 10 cm.
6. The fan blade according to claim 1, wherein the length of the intelligent tail wing along the fan blade main body is 15% -25% of the length of the fan blade main body, and the intelligent tail wing has a preset distance from the blade tip of the fan blade main body.
7. The fan blade according to any one of claims 1 to 6, wherein the fan blade main body comprises a front wind wheel blade and a rear wind wheel blade which are arranged along the axial direction of a rotating plane, and the intelligent tail wing is installed on each of the front wind wheel blade and the rear wind wheel blade.
8. The blade of claim 7, wherein the front wind wheel blade comprises:
the rotating section is used for being connected with the rotating shaft;
the assembling section is used for installing the intelligent tail wing, the assembling section is provided with an inclined side surface which gradually expands from the blade tip to the direction far away from the blade tip, and the intelligent tail wing is installed on the inclined side surface;
connect the straight section of rotation section and assembly section, just the rotation section with straight section junction passes through the inclined plane and connects, the inclination of inclined plane for the horizontal plane is less than the inclination of slope side for the horizontal plane.
9. The fan blade according to claim 7, wherein the side surface of the rear wind wheel fan blade in the rotation direction comprises a divergent section, a convergent section and a plane section which are sequentially connected from the blade tip to the direction far away from the blade tip.
10. A wind turbine generator comprising blades, wherein the blades are as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111117042.XA CN113775470A (en) | 2021-09-23 | 2021-09-23 | Wind wheel wind turbine generator and fan blade thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111117042.XA CN113775470A (en) | 2021-09-23 | 2021-09-23 | Wind wheel wind turbine generator and fan blade thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113775470A true CN113775470A (en) | 2021-12-10 |
Family
ID=78853084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111117042.XA Pending CN113775470A (en) | 2021-09-23 | 2021-09-23 | Wind wheel wind turbine generator and fan blade thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113775470A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7074011B1 (en) * | 2000-01-26 | 2006-07-11 | Aloys Wobben | Wind power installation with two rotors in tandem |
| CN101354008A (en) * | 2007-07-23 | 2009-01-28 | 歌美飒创新技术公司 | Wind turbine blade with cambering flaps |
| CN103032261A (en) * | 2011-10-06 | 2013-04-10 | 通用电气公司 | Wind turbine rotor blade with passively modified trailing edge component |
| CN104769277A (en) * | 2012-09-26 | 2015-07-08 | 叶片动力学有限公司 | A wind turbine blade with an elastic deformable trailing edge |
-
2021
- 2021-09-23 CN CN202111117042.XA patent/CN113775470A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7074011B1 (en) * | 2000-01-26 | 2006-07-11 | Aloys Wobben | Wind power installation with two rotors in tandem |
| CN101354008A (en) * | 2007-07-23 | 2009-01-28 | 歌美飒创新技术公司 | Wind turbine blade with cambering flaps |
| CN103032261A (en) * | 2011-10-06 | 2013-04-10 | 通用电气公司 | Wind turbine rotor blade with passively modified trailing edge component |
| CN104769277A (en) * | 2012-09-26 | 2015-07-08 | 叶片动力学有限公司 | A wind turbine blade with an elastic deformable trailing edge |
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Application publication date: 20211210 |