CN103925149B - Assemble type centre of gravity efficient vertical axis wind energy conversion system - Google Patents
Assemble type centre of gravity efficient vertical axis wind energy conversion system Download PDFInfo
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- CN103925149B CN103925149B CN201410178175.1A CN201410178175A CN103925149B CN 103925149 B CN103925149 B CN 103925149B CN 201410178175 A CN201410178175 A CN 201410178175A CN 103925149 B CN103925149 B CN 103925149B
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- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 8
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- 238000010276 construction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
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- 241000533983 Narcissus bulbocodium Species 0.000 description 1
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- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- 230000010415 tropism Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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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- 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
- Y02E10/728—Onshore wind turbines
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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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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Abstract
The present invention relates to assemble type centre of gravity efficient vertical axis wind energy conversion system, including the fixing pylon determining vertical rotation axis and the wind wheel being supported on pylon；Wind wheel includes wheel carrier and is distributed in the blade of wheel carrier periphery；Blade includes the first blade and second blade of one group of alternate intervals distribution；First, second blade is respectively the streamlined cross-section blade of vertical extension；Wheel carrier includes one group of uniform horizontal-extending and spoke of upper and lower corresponding of circumference, the spoke outer end of upper and lower corresponding is fixing with the upper and lower corresponding site of the first blade respectively to be connected or is rotationally connected, and fixes with the upper and lower corresponding site of the second blade respectively and be connected or be rotationally connected in the middle part of the spoke of upper and lower corresponding.After using the structure of the present invention, not only can effectively play the Wind Power Utilization performance of the first blade, moreover it is possible to utilize the second blade to improve wind wheel and play torque, effectively play the low velocity wind energy utility of low wind speed blade.
Description
Technical field
The present invention relates to a kind of vertical axis windmill, especially one and assemble type centre of gravity efficient vertical axis wind
Power machine, belongs to technical field of wind power generating equipment.
Background technology
According to the applicant understood, in the wind power generating set run in the market, wind energy conversion system used is the most most
Number is the horizontal axis turbines formula wind energy conversion system of wind wheel rotating shaft horizontal positioned, belongs to high wind speed wind energy conversion system category, its
In low wind speed poor performance, at average annual wind speedThe regional economical operation bad economic results of meter per second.Additionally,
This kind of wind energy conversion system operation noise is big, can produce infrasonic wave, is not suitable for using in city and community, and
Also can endanger the living environment of birds.
Additionally, also vertical axis windmill, the feature of this type of wind energy conversion system is that calm tropism requires, noise is little,
Do not produce infrasonic wave.Compared with horizontal-shaft wind turbine, vertical axis windmill may utilize dimensional airfoil blade,
The lift that can utilize blade, the thrust (also referred to as resistance) that blade can be utilized again；The each blade of its wind wheel is at wind
Exerting oneself during difference when power machine runs, but take over rotation successively and exert oneself, blade load cyclically-varying is (vertical
Axle blade rotates one week, the angle of attack experience 360 ° of changes, only angle of attack blade ability in the range of about ± 20 °
Exert oneself, be in stall conditions at other angular ranges and can not exert oneself).These features of vertical axis windmill
Both advantageous and disadvantageous, utilizing advantage, suppression shortcoming is that research and development are applicable to average annual wind speedMeter per second area and
The key of the vertical-shaft wind machine technology of urbanite's habitat environment.
Blade used by vertical axis windmill has three class aerofoil profiles: the first kind is push type blade, uses such leaf
The wind wheel of sheet easily from turn, but the power coefficient Cp of such blademax≤ 0.15 and rotating speed low, nothing
Method is applicable to efficient wind-driven generator；Equations of The Second Kind is the symmetrical airfoil blade of lift-type, such blade
Aerofoil profile is NACA00xy (x=1 or 2；Y=0,1 ..., 8 or 9), its CpmaxHeight, the Cp of some blademax
Can reach 0.45, but use such blade wind wheel cannot from turn；3rd class is the suction surface of lift-type
Have the airfoil fan of spill for convex, pressure face, such blade quantity is numerous, its Cpmax0.20 0.30
Between, use such blade wind wheel can from turn, but play torque less than first kind blade and Cpmax
Corresponding rotating speed is less than Equations of The Second Kind blade.
At present, utilize the vertical axis windmill of lift-type airfoil fan, substantially use Darrieus technology
" Φ " wind wheel or " H " wind wheel, the common characteristic of both wind wheels is main axis length >=wind wheel height,
Thus both wind wheel centers of gravity are higher, in order to ensure the stability of whole wind wheel, it is desirable to wind turbine main shaft has
The highest strength and stiffness, cause main shaft weight the heaviest.Wherein, " Φ " wind wheel is by " rope skipping curve " shape
Aforementioned Equations of The Second Kind blade constitute (generally using thin airfoil type blade), blade two ends be directly connected in main shaft (if
Solve " Φ " wind wheel from turn, the aforementioned first kind blade of serpentine also can be connected to main shaft).“Φ”
The blade that wind wheel uses to have enough flexibilities, its CpmaxCorresponding tip-speed ratio λ is higher, causes " Φ "
Low wind speed poor performance in wind wheel." H " wind wheel great majority are connected to by cantilever by aforementioned 3rd class blade
Main shaft forms, and trembles for suppression blade, it is desirable to cantilever has the highest strength and stiffness, causes cantilever weight
Measure the heaviest；Meanwhile, the 3rd class blade CpmaxCorresponding Optimum Leaves width (also referred to as chord length) ratio aforementioned second
Class blade wants big 50-60%, correspondingly, leaf weight 80-100% to be weighed.It is limited by this, identical
Under height, 1-2 times to be weighed of weight ratio " Φ " wind wheel of " H " wind wheel, its centrifugal load is bigger, to master
The strength and stiffness of axle require higher.
As can be seen here, lower the center of gravity and alleviate weight, increasing high CpmaxThe torque that rises of aerofoil profile is design height
Two technological break-through points of effect wind energy conversion system, particularly improve the break-through point of low wind speed performance in wind energy conversion system.
Filed in 4 days April in 2010 of inventor, the patent No. 201010162074.7, authorize
The Chinese invention patent of notification number CN102213180B discloses a kind of vertical axis (also referred to as vertical shaft) wind-power electricity generation
The blower fan of unit.But, this technical scheme remains in following main disadvantage: (1) interlayer support portion
Part is the most too fat to move, relatively big to interference in air flow, affects the Wind Power Utilization performance of blade；(2) interlayer support knot
Structure optimizes not, causes the strength and stiffness in its Unit Weight relatively low, will reach intended intensity with just
Degree remains a need for bigger weight, is unfavorable for alleviating wind wheel weight；(3) between wheel carrier and the main shaft of wind wheel
Adapting structure for electric intensity is poor, but will certainly increase wind wheel weight for improving intensity, and this problem causes wind
Wheel cannot maximize；(4) wind energy conversion system power cannot be realized control.Need badly and develop intensity in Unit Weight
Higher interlayer support structure and adapting structure for electric, thus wind wheel will not be increased while reaching expection intensity
Weight, even alleviate wind wheel weight；Develop simultaneously and can realize the structure that power controls, by power control
System expands the wind speed range that wind energy conversion system runs, and improves generated energy.
Additionally, filed in inventor's December in 2004 20 days, the patent No. 200410073422.8,
The Chinese invention patent of Authorization Notice No. CN100392240C discloses one and utilizes low velocity wind energy to produce power
Wing panels of blower fan, belong to low wind speed blade, can effectively utilize the wind energy of relatively low wind speed.Need badly equally at present
Develop the vertical axis windmill that can effectively play such blade low velocity wind energy utility.
Summary of the invention
The technical problem to be solved is: overcome the problem that prior art exists, it is provided that a kind of group
Distribution type centre of gravity efficient vertical axis wind energy conversion system, have employed for vertical axis windmill design special blade,
And the low wind speed blade of torque can have been improved, and can effectively play the Wind Power Utilization of this two classes blade
Energy.
The basic technical scheme that the present invention solves its technical problem is as follows:
One assembles type centre of gravity efficient vertical axis wind energy conversion system, including the fixing tower determining vertical rotation axis
Frame and the wind wheel being supported on pylon, described wind wheel horizontally rotates pair with pylon composition axial constraint；Institute
State wind wheel and include that center of rotation is supported in the wheel carrier of described pylon and is distributed in the leaf of described wheel carrier periphery
Sheet；It is characterized in that, described blade includes the first blade and second blade of one group of alternate intervals distribution；Institute
Stating first, second blade and be respectively the streamlined cross-section blade of vertical extension, described first blade has point
In convex and asymmetricly it is not distributed in blade face outwardly and the blade face inwardly of blade wing chord both sides, described
The blade face outwardly of two blades concave and inwardly blade face be convex；Described wheel carrier includes one group of circumference all water distributions
Flat extension and the spoke of upper and lower corresponding, the spoke of described wheel carrier respectively constitutes a center of rotation and is supported in tower
The transmission frame of frame and at least one connect frame, described connection frame through support member and adjacent connection frame or
Transmission frame is fixing to be connected；Described transmission frame, connect frame spoke outer end respectively with described first blade upper,
Lower corresponding site is directly fixed to connect or fix with the fixture being fixed on the first blade and is connected or rotates
Connect；Described transmission frame, connect the middle part of frame spoke respectively to the upper and lower corresponding portion of described second blade
Position is directly fixed to connect or fix with the fixture being fixed on the second blade and is connected or is rotationally connected.
In this structure, the first blade is positioned at spoke outer end, the second blade is positioned in the middle part of spoke, so can make two
Kind of blade organic assembling, had not only utilized the first blade to improve wind energy utilization efficiency, but also utilize the second blade to improve
Wind wheel plays torque.
First blade of said structure be for vertical axis windmill around Unsteady Flow feature design
Special blade, this blade have from turn wind wheel ability and the highest power coefficient Cpmax(up to
0.45 0.50)；Second blade belongs to low wind speed blade, can effectively utilize the wind energy of relatively low wind speed；Application
People finds through going deep into practical studies, or rotates the first blade, the fixing connection of the second blade by said structure
After being connected to wheel carrier, can play well two class blades from turn ability and/or Wind Power Utilization performance.
Especially when employing is rotationally connected mode, wind drive wind wheel rotates, and the first blade is in wind-force effect
Lower automatically a little turn an angle around being rotationally connected, can more effectively play the Wind Power Utilization of the first blade
Energy；Meanwhile, the second blade also can turn an angle under wind-force effect automatically, on the one hand can be preferably
Utilize low wind speed wind energy, and make the first blade the most also can utilize wind energy, on the other hand can improve
Wind wheel rotating torque when wind wheel plays torque and reduces high wind speed, improves the wind energy utilization efficiency of wind energy conversion system.
Said structure is used also can effectively to shorten wind turbine main shaft length, it might even be possible to cancel main shaft, thus have
Effect reduces wind wheel center of gravity, reduces wind wheel weight.
Preferably, described wheel carrier uses the first structure:
In regular polygon and be provided with truss in the middle part of described transmission frame；Described truss is by the first flange and uniform
Constitute in the first flange circumference and the loading arm that radially extends, described loading arm end respectively with transmission frame
The middle part on each summit of regular polygon, middle part or each limit of regular polygon is connected；When described truss loading arm end
End respectively with transmission frame in the middle part of the middle part on each limit of regular polygon be connected time, regular polygon in the middle part of described transmission frame
The connecting rod being connected with loading arm it is additionally provided with between adjacent both sides；Described first flange forms the rotation of transmission frame
Center, and with pylon top constitute axial constraint horizontally rotate pair.
It is highly preferred that described wind wheel also includes being rotationally connected with pylon top and axis is vertically arranged
Main shaft or the power input shaft of load, described first flange is coaxially consolidated with main shaft or with power input shaft
Even；The mean camber line of described first blade encircles to described rotation axis；In the cross section of described first blade, hang down
Distance between the straight thickness maximum in chordwise intersection point and leading edge point on wing chord is chord-length
0.12-0.29 times of degree.
Use the first structure to may utilize the power input shaft of load thus eliminate the main shaft of wind wheel, can be maximum
Lower the center of gravity to limit and alleviate wind wheel weight, reduce cost again.Meanwhile, the transmission of this structure is used
After frame, its truss is as the adapting structure for electric between wheel carrier and load power power shaft, in its Unit Weight
Intensity is higher, will not increase wind wheel weight while intensity reaching to expect, even can alleviate wind wheel weight,
So that wind wheel can effectively maximize.Additionally, what the first structure can also be used for being connected with pylon top main shaft
Wind wheel.
Preferably, described wheel carrier uses the second structure:
In regular polygon and be provided with truss in the middle part of described transmission frame；Described truss is arranged by about two and same
Second, third flange of axle, and be distributed in second, third flange circumference respectively and radially extend
Loading arm and reinforcement arm are constituted, the end of described loading arm and reinforcement arm respectively with transmission frame in the middle part of the most polygon
The each summit of shape is connected；It is provided with at least one muscle between corresponding loading arm and reinforcement arm；Described second,
Three-flange formed transmission frame center of rotation, and with pylon top constitute axial constraint horizontally rotate pair.
It is highly preferred that described wind wheel also includes being rotationally connected with pylon top and axis is vertically arranged
Main shaft or the power input shaft of load, second, third flange described and main shaft or and power input shaft
Coaxial connected；The mean camber line of described first blade encircles to described rotation axis；The cross section of described first blade
In, distance between the thickness maximum that is perpendicular in chordwise intersection point and the leading edge point on wing chord be
0.12-0.29 times of chord length.
In second structure, truss as the adapting structure for electric between wheel carrier and main shaft, strong in its Unit Weight
Spend higher, wind wheel weight will not be increased while intensity reaching to expect, even can alleviate wind wheel weight,
So that wind wheel can effectively maximize.Meanwhile, after using the second structure, wind wheel uniform force is good,
It is more conducive to wind wheel rotate.Additionally, the second structure can also be used for being connected with pylon top load power power shaft
Wind wheel.
Preferably, described fixture is one end and transmission frame or be connected that the spoke of frame is fixing to be connected or the company of rotation
Connect, straight plate that the other end and the first or second blade blade face inwardly are connected；Or, described fixture is tool
Having two outer ends and the " V " shape part of a corner end, two outer ends of described " V " shape part are respectively with first or
Two blades blade face inwardly or vane end faces are connected, the corner end of described " V " shape part and transmission frame or be connected frame
Spoke fixing connect or be rotationally connected；Or, described fixture for having the outer peripheral plate of streamlined,
The plate face of described plate is connected with vane end faces, and described plate is extended with prominent ear towards transmission frame or connection frame,
Described prominent ear and transmission frame, it is connected that the outer end of frame spoke is fixing to be connected or be rotationally connected；Or, described
Fixture is for having the outer peripheral garter spring of streamlined, and described garter spring inward flange hoop is in blade circumference, described hoop
Petticoat is towards transmission frame or connects frame and is extended with prominent ear, described prominent ear and transmission frame, is connected frame spoke
The outer end of bar is fixing to be connected or is rotationally connected.
So fixture itself does not interferes with the utilization to wind energy of first, second blade, and in the company of rotation
When connecing, beneficially first, second blade rotates swimmingly, can preferably play the wind energy of special blade
Utility and the low wind speed wind energy utility of low wind speed blade.
Controlling for realizing wind energy conversion system power, the technical scheme that the present invention is the most perfect is as follows:
Preferably, described fixture towards transmission frame or connects frame side and transmission frame or be connected frame spoke
Between be provided with the telescopic controller in order to moving blade angle, or, described fixture is near blade
Position and transmission frame or be connected between frame spoke and be provided with the telescopic controller in order to moving blade angle；Institute
Stating controller is elastomeric element, or, described controller is the Electronic control of controlled end external control equipment
Device.
Then can be with the force balance between blade centrifugal force and elastic force when controller is elastomeric element
Mode is implemented wind energy conversion system power and is controlled；Then can be in the way of Electronic control when controller is electric controller
Implement wind energy conversion system power to control.After implementing the control of wind energy conversion system power, the wind speed that can expand wind energy conversion system is suitable for model
Enclose.
For simplified support structure, it is to avoid interference air-flow, affect the Wind Power Utilization performance of blade；Meanwhile, for
Improving the strength and stiffness in supporting construction Unit Weight, in order to alleviating wind wheel weight, the present invention is further
Perfect technical scheme is as follows:
In the middle part of described transmission frame the most polygon with connect that identical in shape in the middle part of frame and each corresponding sides are parallel to each other
Shape；In the middle part of described transmission frame, each summit of regular polygon is propped up with being connected between each summit of regular polygon in the middle part of frame warp
Support member is connected；Described support member is the X-shaped part with four ends, described X-shaped part top two
End, two ends, bottom respectively with transmission frame or to be connected two adjacent vertexs of frame connected, and described X-shaped part position
In transmission frame and the same side of connection frame；Or, described support member is the transmission frame that is connected, connects in the middle part of frame
The straight-bar of each corresponding vertex of regular polygon；Or, described support member includes being connected in transmission frame, connection frame
The straight-bar of each corresponding vertex of portion's regular polygon, is additionally provided with diagonal brace between described straight-bar and the dual-side on summit.
Applicant finds through going deep into practical studies, after using above-mentioned preferred structure, can not only avoid interference gas
Stream, moreover it is possible to alleviate wind wheel weight further while satisfied expection rigidity and requirement of strength.
Preferably, in the middle part of described transmission frame, the company's of being additionally provided with muscle between adjacent spoke outside regular polygon, rises
To reinforcement effect；It is additionally provided with connecting rod between the adjacent spoke of regular polygon in the middle part of described connection frame；Or,
It is additionally provided with connecting rod between adjacent spoke outside regular polygon in the middle part of described connection frame, plays reinforcement effect.
Preferably, described connection frame has at least two and forms at least two-layer spoke with transmission frame, every layer
Spoke is separately installed with the blade of correspondence, the blade stagger distribution that adjacent two layers spoke is installed.
So can improve the probability windward of blade optimal attack angle, make wind wheel be more easy to turn, again can be with segmentation
Form reduce length of blade, thus reduce the manufacture of blade, transport and installation cost.
Compared with prior art, beneficial effects of the present invention is as follows:
(1) by assembling the special blade of vertical axis windmill and low wind speed blade, blade and wheel carrier are optimized
Attachment structure, this body structure of wheel carrier and blade mount structure, it is ensured that the Wind Power Utilization of special blade
The low velocity wind energy utility of performance and low wind speed blade can be given full play to, and can reduce wind wheel weight simultaneously
The heart also alleviates wind wheel weight.
(2) by arranging and optimizing truss structure, make the intensity in adapting structure for electric Unit Weight higher, from
And beneficially wind wheel maximizes.
(3) by optimizing supporting construction, air-flow can not only be avoided interference, moreover it is possible to by improving supporting construction
Strength and stiffness in Unit Weight alleviate wind wheel weight further.
(4) by segmentation, it is staggered installation of blade, improves the probability windward of blade optimal attack angle and more hold
Easily rise and turn wind wheel, and reduce the manufacture of blade, transport and installation cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2, Fig. 3, Fig. 4 are respectively A, B, C regional enlarged drawing of Fig. 1.
Fig. 5 is the D regional enlarged drawing of Fig. 4.
Fig. 6 is the structural representation of the embodiment of the present invention 1 wheel carrier.
Fig. 7 is the embodiment of the present invention 1 transmission frame and the structural representation of truss.
Fig. 8, Fig. 9 are respectively the structural representation of the embodiment of the present invention 1 two kinds of connection frames used.
Figure 10 is the structural representation of the embodiment of the present invention 1 support member.
Figure 11 is the structural representation of the embodiment of the present invention 1 fixture.
Figure 12 is the structural representation of the embodiment of the present invention 2.
Figure 13, Figure 14, Figure 15 are respectively E, F, G regional enlarged drawing of Figure 12.
Figure 16 is the structural representation of the embodiment of the present invention 2 wheel carrier.
Figure 17 is the embodiment of the present invention 2 transmission frame and the structural representation of truss.
Figure 18 is the structural representation of the embodiment of the present invention 3.
Figure 19 to Figure 22 is respectively the H of Figure 18, I, J, territory, K-region enlarged drawing.
Figure 23 is the structural representation of the embodiment of the present invention 3 wheel carrier.
Figure 24 to Figure 32 is other transmission frame schematic diagram that the present invention can be used for embodiment 1 to 3.
Figure 33 to Figure 35 is the transmission frame schematic diagram that the present invention can be used for having main axle structure.
Figure 36 to Figure 38 is respectively truss structure schematic diagram in Figure 33 to Figure 35.
Figure 39 to Figure 45 be the present invention can other connect frame schematic diagram.
Figure 46, Figure 47 be the present invention can other support member schematic diagram.
Figure 48 is the schematic diagram that wind wheel of the present invention has main axle structure.
Figure 49, Figure 50 present invention can other fixture schematic diagram.
Figure 51 is the schematic diagram of the special blade profile of vertical axis windmill used by the present invention.
Detailed description of the invention
It is described in further detail with reference to the accompanying drawings and in conjunction with the embodiments to the present invention.But the present invention is not
It is limited to given example.
Embodiment 1
The present embodiment assembles type centre of gravity efficient vertical axis wind energy conversion system as shown in Figures 1 to 4, including determining
The fixing pylon 1 of vertical rotation axis and the wind wheel 2 being supported on pylon 1, wind wheel 2 is constituted with pylon 1
Axial constraint horizontally rotate pair；Wind wheel 2 includes that center of rotation is supported in the wheel carrier 3 of pylon 1, Yi Jifen
It is distributed in the blade of wheel carrier 3 periphery；Blade includes the first blade 4 and the second leaf of one group of alternate intervals distribution
Sheet 4-1；First, second blade 4,4-1 are respectively the streamlined cross-section blade of vertical extension, the first leaf
Sheet 4 has and in convex and is asymmetricly distributed in the blade face outwardly of blade wing chord both sides respectively and towards internal lobe
Face；The blade face outwardly of the second blade 4-1 concave and inwardly blade face be convex；Wheel carrier 3 includes one group of week
To the uniform horizontal-extending and spoke of upper and lower corresponding, the spoke outer end of upper and lower corresponding respectively with the first leaf
The upper and lower corresponding site of sheet 4 is rotationally connected, in the middle part of the spoke of upper and lower corresponding respectively with the second blade 4-1
Upper and lower corresponding site be rotationally connected.
Specifically, as shown in Figure 6, the spoke of wheel carrier 3 respectively constitutes a center of rotation and is supported in pylon 1
Transmission frame 6 and at least one connect frame 7, connect frame 7 through support member 11 and adjacent connection frame 6
Or the fixing connection of transmission frame 7；Transmission frame 6, connect frame 7 spoke outer end respectively be fixed on the first blade
The fixture 4-2 of 4 is rotationally connected, transmission frame 6, connect frame 7 spoke middle part respectively be fixed on second
The fixture 8 of blade 4-1 is rotationally connected；As shown in Figure 4, the first blade 4 shape of cross section is non-right
Claiming drop shape, the mean camber line of the first blade 4 encircles to rotation axis；As shown in figure 51, first blade 4
In cross section, between the thickness maximum that is perpendicular in chordwise intersection point and the leading edge point on wing chord away from
It is 0.12-0.29 times of chord length from Xt.The present embodiment uses and is connected frame 7 and a transmission by three
The three-decker that frame 6 is formed, forms three layers of spoke structure, and each first blade 4 or the second blade 4-1 divides
Not being installed on each layer spoke, the first blade 4 or the second blade 4-1 that adjacent two layers spoke is installed interlocks
Distribution.
As it is shown in figure 5, fixture 4-2 be one end with transmission frame 6 or be connected the spoke of frame 7 be rotationally connected,
The straight plate that the other end and the first or second blade 4,4-1 blade face inwardly are connected；As shown in figure 11, fixing
Part 8 is to have two outer end 8-1 and the " V " shape part of a corner end 8-2, two outer end 8-1 of " V " shape part
It is connected with the first or second blade 4,4-1 blade face inwardly respectively, the corner end 8-2 of " V " shape part and transmission
The spoke of frame 6 or connection frame 7 is rotationally connected.It should be noted that two outer end 8-1 of " V " shape part are also
Can be connected with the vane end faces of the first or second blade 4,4-1 respectively.
As shown in Fig. 2, Fig. 6, pylon 1 top is rotationally connected with the power input shaft 13 of load, power
The axis of power shaft 13 is vertically arranged；The first flange forming center of rotation it is provided with in the middle part of transmission frame 6
10-6, the first flange 10-6 are fixing with power input shaft 13 to be connected；First flange is constituted with pylon top
Axial constraint horizontally rotate pair.
Specifically, in regular polygon and be provided with truss 10 in the middle part of transmission frame 6；Truss 10 includes first
Flange 10-6, the first flange 10-6 are fixing with power input shaft 13 to be connected, and the first flange 10-6 circumference is all
Be furnished with the loading arm 10-3 radially extended, loading arm 10-3 end respectively with transmission frame 6 in the middle part of regular polygon
Each summit is connected.
As shown in Figure 7 to 10, identical in shape and each corresponding with in the middle part of connection frame 7 in the middle part of transmission frame 6
While the regular polygon being parallel to each other (the present embodiment is regular hexagon), and connect frame 7 and use two kinds of structures,
One is as shown in Figure 8, overall triangular in shape, another kind of as it is shown in figure 9, entirety is hexagon；Transmission
In the middle part of frame 6, each summit of regular polygon is consolidated through support member 11 between each summit of regular polygon with being connected in the middle part of frame 7
Even；Support member 11 is the X-shaped part with four ends, X-shaped part both upper ends thereof, two ends, bottom
Respectively with transmission frame 6 or be connected two adjacent vertexs of frame 7 and be connected, and X-shaped part is positioned at transmission frame 6 He
Connect the same side of frame 7.
It should be noted that with upper fixing element 4-2,8 also can with transmission frame 6, be connected outside frame 7 spoke
End is fixing to be connected, and is connected so that first blade the 4, second blade 4-1 is fixing with wheel carrier spoke.
Embodiment 2
The present embodiment assembles type centre of gravity efficient vertical axis wind energy conversion system as shown in Figure 12 to Figure 17, and it is basic
Structure is same as in Example 1, the difference is that only:
(1) the present embodiment uses the single layer structure formed by a connection frame 7 and a transmission frame 6.
(2) fixture 8 is provided with near the position of blade 4-1 and transmission frame 6 or be connected between frame 7 spoke
Controller 12 in order to moving blade angle.
(3) as shown in figure 17, transmission frame 6 is overall triangular in shape.
(4) a kind of version of frame 7 is connected, same as shown in Figure 8.
(5) fixture 4-2 structure is identical with fixture 8, the most same as shown in Figure 11.
Embodiment 3
The present embodiment assembles type centre of gravity efficient vertical axis wind energy conversion system as shown in Figure 18 to Figure 23, and it is basic
Structure is same as in Example 1, the difference is that only:
(1) the present embodiment uses the double-decker formed by two connection frames 7 and a transmission frame 6.
(2) a kind of version of frame 7 is connected, same as shown in Figure 8.
(3) fixture 4-2 structure is identical with fixture 8, the most same as shown in Figure 11.
(4) fixture 4-2 and fixture 8 near the position of blade 4-1 and transmission frame 6 or are connected frame 7
The telescopic controller 12 in order to moving blade angle it is respectively equipped with between spoke.
Additionally, as shown in figure 22, fixture and transmission frame or be connected being rotationally connected a little for c point of frame, Gu
In two intersection points of locking member extension line and axis of runner blade, the intersection point away from controller 12 is O point, pylon axis with
The intersection point of fixture plane is a point；Angle between line and the axis of runner blade of O point and a point is θ angle.
Controller 12 can be elastomeric element, and when applying or cancelling external force, its length can change or reply；
When a certain wind speed makes wind energy conversion system rotation speed change, blade centrifugal force changes therewith, and blade is with c point as axle
The heart turns an angle, and makes controller 12 elongate or shorten, and makes θ value change, thus changes air-flow pair
The effect of blade, this effect causes again the negative feedback of wind energy conversion system rotating speed and blade centrifugal force to change, this time control
The elastic force of device 12 processed makes the length of controller 12, θ value, wind energy conversion system rotating speed and blade centrifugal force the most again
Secondary generation negative feedback changes, and in such circulation, the amplitude of variation of each variable is more and more less, until dynamic
Till state balance foundation, θ value no longer change.
So, on the one hand can immediate feedback and low cost, namely from starting the feedback that changes to start to control
Carried out by elastomeric material is instantaneous, on the other hand control reliability high and non-maintaining.
Additionally, controller 12 may be used without the electric controller of controlled end external control equipment, but,
On the one hand during Electronic control, from the feedback starting to change to start to control, there is response time delay, ring
Between Ying Shi, the cost of the shortest then Electronic control is the highest, and on the other hand reliability to be improved can only use high cost
Electrical equipment, and need periodic maintenance.
In addition to the implementation, the present invention can also have other embodiments, such as:
(1) wind wheel also can use main axle structure, as shown in Figure 48, Figure 33, Figure 36: wind wheel 2 is also
Including the main shaft 9 being rotationally connected with pylon 1 top and axis is vertically arranged；In just in the middle part of transmission frame 6
Polygon is also provided with truss 10；Truss 10 includes about two arrangements and second, third coaxial flange
10-1,10-2, it is circumferential and solid with main shaft 9 that second, third flange 10-1,10-2 are respectively arranged on main shaft 9
Even, second, third flange 10-1,10-2 circumference respectively be evenly equipped with the loading arm 10-3 radially extended and
Reinforcement arm 10-4, the end of loading arm 10-3 and reinforcement arm 10-4 respectively with transmission frame 6 in the middle part of the most polygon
The each summit of shape is connected；It is provided with at least one muscle between corresponding loading arm 10-3 and reinforcement arm 10-4
10-5；Second, third flange 10-1,10-2 formed transmission frame 6 center of rotation, and with pylon top
Constitute axial constraint horizontally rotates pair.Muscle 10-5, loading arm 10-3, reinforcement arm 10-4 of truss 10
Between form multiple triangular support structure.
(2) transmission frame 6 can there to be various structures form, in the middle part of transmission frame 6 can in equilateral triangle, pros
Shape, regular pentagon, regular hexagon etc..
Part can be used for the example of embodiment 1 to 3 as shown in Figure 24 to Figure 32.
Part can be used for there is the example of main axle structure as shown in Figure 33 to Figure 35, the truss in each figure such as figure
Shown in 36 to Figure 38.
Wherein, as shown in figure 25, loading arm 10-3 end also can respectively with transmission frame 6 in the middle part of the most polygon
The middle part on each limit of shape is connected, and is additionally provided with and load-bearing in the middle part of transmission frame 6 between the adjacent both sides of regular polygon simultaneously
The connecting rod 10-7 that arm 10-3 end is connected.
Such as Figure 28, shown in 30, the company of being additionally provided with between adjacent spoke outside regular polygon in the middle part of transmission frame 6
Muscle 6-1.
(3) connect frame 7 can there to be various structures form, connect in the middle part of frame 7 can in equilateral triangle, pros
Shape, regular pentagon, regular hexagon etc.；Few examples is as shown in Figure 39 to Figure 45.
Wherein, as shown in figure 40, connect in the middle part of frame 7 and be additionally provided with connecting rod between the adjacent spoke of regular polygon
7-2；Such as Figure 42, shown in 44, connect in the middle part of frame 7 and to be additionally provided with between the adjacent spoke outside regular polygon
Connecting rod 7-1.
(4) as shown in figure 46, support member 11 can be for the most in the middle part of the transmission frame 6 that is connected, connection frame 7
The straight-bar of each corresponding vertex of limit shape.Or, as shown in figure 47, support member 11 include be connected transmission frame 6,
Connect in the middle part of frame 7 dual-side of the straight-bar 11-1, straight-bar 11-1 of each corresponding vertex of regular polygon and summit it
Between be additionally provided with diagonal brace 11-2.
(5) fixture also can use following structure: as shown in figure 50, and fixture is for having outside streamlined
The plate at edge, the plate face of plate is connected with vane end faces, and plate is extended with prominent towards transmission frame or connection frame
Going out ear, prominent ear and transmission frame, the outer end being connected frame spoke are fixed connection or are rotationally connected；Or, as
Shown in Figure 49, fixture is for having the outer peripheral garter spring of streamlined, and garter spring inward flange hoop is circumferential in blade,
Garter spring outward flange is towards transmission frame or connects frame and is extended with prominent ear, prominent ear and transmission frame, is connected frame spoke
Outer end fixing connect or be rotationally connected.After using the fixture of this structure, implement the knot that power controls
Structure is: side and transmission frame that fixture towards transmission frame or connects frame or be connected between frame spoke and be provided with use
Telescopic controller with moving blade angle.
The technical scheme that all employing equivalents or equivalent transformation are formed, all falls within the protection of application claims
Scope.
Claims (10)
1. assembling a type centre of gravity efficient vertical axis wind energy conversion system, including the fixing pylon determining vertical rotation axis and the wind wheel being supported on pylon, described wind wheel horizontally rotates pair with pylon composition axial constraint；Described wind wheel includes that center of rotation is supported in the wheel carrier of described pylon and is distributed in the blade of described wheel carrier periphery；It is characterized in that, described blade includes the first blade and second blade of one group of alternate intervals distribution；Described first, second blade is respectively the streamlined cross-section blade of vertical extension, described first blade has blade face outwardly and the blade face inwardly in convex and being asymmetricly distributed in blade wing chord both sides respectively, the blade face outwardly of described second blade concave and inwardly blade face be convex；Described wheel carrier includes one group of uniform horizontal-extending and spoke of upper and lower corresponding of circumference, the spoke of described wheel carrier respectively constitutes a center of rotation and is supported in transmission frame and at least one connection frame of pylon, and described connection frame is through support member connection fixing with adjacent connection frame or transmission frame；Described transmission frame, the outer end of connection frame spoke are directly fixed to be connected or fix with the fixture being fixed on the first blade with the upper and lower corresponding site of described first blade respectively and are connected or are rotationally connected；Described transmission frame, the middle part of connection frame spoke are directly fixed to be connected or fix with the fixture being fixed on the second blade with the upper and lower corresponding site of described second blade respectively and are connected or are rotationally connected；
The mean camber line of described first blade encircles to described rotation axis；In the cross section of described first blade, between the thickness maximum that is perpendicular in chordwise intersection point and the leading edge point on wing chord 0.12-0.29 times that distance is chord length.
The most according to claim 1, assemble type centre of gravity efficient vertical axis wind energy conversion system, it is characterized in that, described wheel carrier uses the first structure:
In regular polygon and be provided with truss in the middle part of described transmission frame；Described truss is by the first flange and is distributed in the first flange circumference and the loading arm that radially extends is constituted, described loading arm end respectively with transmission frame in the middle part of the middle part on each summit of regular polygon or each limit of regular polygon be connected；When described truss loading arm end respectively with transmission frame in the middle part of the middle part on each limit of regular polygon be connected time, be additionally provided with the connecting rod being connected with loading arm in the middle part of described transmission frame between the adjacent both sides of regular polygon；Described first flange formed transmission frame center of rotation, and with pylon top constitute axial constraint horizontally rotate pair.
Assemble type centre of gravity efficient vertical axis wind energy conversion system the most according to claim 2, it is characterized in that, described wind wheel also includes being rotationally connected with pylon top and axis is vertically arranged main shaft or the power input shaft of load, described first flange is coaxially connected with main shaft or with power input shaft.
The most according to claim 1, assemble type centre of gravity efficient vertical axis wind energy conversion system, it is characterized in that, described wheel carrier uses the second structure:
In regular polygon and be provided with truss in the middle part of described transmission frame；Described truss is by about two arrangements and second, third coaxial flange, and be distributed in second, third flange circumference respectively and the loading arm and the reinforcement arm that radially extend are constituted, the end of described loading arm and reinforcement arm respectively with transmission frame in the middle part of each summit of regular polygon be connected；It is provided with at least one muscle between corresponding loading arm and reinforcement arm；Second, third flange described formed transmission frame center of rotation, and with pylon top constitute axial constraint horizontally rotate pair.
Assemble type centre of gravity efficient vertical axis wind energy conversion system the most according to claim 4, it is characterized in that, described wind wheel also includes being rotationally connected with pylon top and axis is vertically arranged main shaft or the power input shaft of load, second, third flange described is coaxially connected with main shaft or with power input shaft.
6. according to any one of claim 1 to 5, assemble type centre of gravity efficient vertical axis wind energy conversion system, it is characterized in that, described fixture be one end with transmission frame or be connected the spoke of frame fix connect or be rotationally connected, straight plate that the other end is connected with the first or second blade blade face inwardly；Or, described fixture is to have two outer ends and the " V " shape part of a corner end, two outer ends of described " V " shape part are connected with the first or second blade blade face inwardly or vane end faces respectively, the corner end of described " V " shape part and transmission frame or is connected the spoke of frame and fixes connection or be rotationally connected；Or, described fixture is for having the outer peripheral plate of streamlined, the plate face of described plate and vane end faces are connected, and described plate is towards transmission frame or connects frame and is extended with prominent ear, and described prominent ear and transmission frame, the outer end being connected frame spoke are fixed connection or be rotationally connected；Or, described fixture is for having the outer peripheral garter spring of streamlined, described garter spring inward flange hoop is in blade circumference, and described garter spring outward flange is towards transmission frame or connects frame and is extended with prominent ear, and described prominent ear and transmission frame, the outer end being connected frame spoke are fixed connection or be rotationally connected.
7. according to any one of claim 1 to 5, assemble type centre of gravity efficient vertical axis wind energy conversion system, it is characterized in that, side and transmission frame that described fixture towards transmission frame or connects frame or be connected between frame spoke and be provided with the telescopic controller in order to moving blade angle, or, described fixture is near the position of blade and transmission frame or is connected between frame spoke and is provided with the telescopic controller in order to moving blade angle；Described controller is elastomeric element, or, described controller is the electric controller of controlled end external control equipment.
8. according to any one of claim 1 to 5, assemble type centre of gravity efficient vertical axis wind energy conversion system, it is characterized in that, in the middle part of described transmission frame with connect the regular polygon that identical in shape in the middle part of frame and each corresponding sides are parallel to each other；In the middle part of described transmission frame, each summit of regular polygon is connected through support member with being connected between each summit of regular polygon in the middle part of frame；Described support member is the X-shaped part with four ends, described X-shaped part both upper ends thereof, two ends, bottom respectively with transmission frame or be connected frame two adjacent vertexs be connected, and described X-shaped part be positioned at transmission frame and connect frame the same side；Or, described support member is connected transmission frame, connects the straight-bar of each corresponding vertex of regular polygon in the middle part of frame；Or, described support member includes connected transmission frame, connects the straight-bar of each corresponding vertex of regular polygon in the middle part of frame, is additionally provided with diagonal brace between described straight-bar and the dual-side on summit.
Assemble type centre of gravity efficient vertical axis wind energy conversion system the most according to claim 8, it is characterized in that, the company's of being additionally provided with muscle between adjacent spoke outside regular polygon in the middle part of described transmission frame；It is additionally provided with connecting rod between the adjacent spoke of regular polygon in the middle part of described connection frame, or, it is additionally provided with connecting rod between adjacent spoke outside regular polygon in the middle part of described connection frame.
10. according to any one of claim 1 to 5, assemble type centre of gravity efficient vertical axis wind energy conversion system, it is characterized in that, described connection frame has at least two and forms at least two-layer spoke with transmission frame, and every layer of spoke is separately installed with the blade of correspondence, the blade stagger distribution that adjacent two layers spoke is installed.
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| CN104500330B (en) * | 2014-12-15 | 2016-01-20 | 山东大学 | With the vertical axis windmill of layering dislocation combination type vane |
| CN106050554B (en) * | 2015-08-26 | 2019-06-14 | 陈忠维 | A kind of vertical axis windmill |
| CN106837684B (en) * | 2015-12-10 | 2019-08-20 | 李亦博 | Efficient vertical axis wind energy conversion system |
| CN107842471B (en) * | 2016-09-18 | 2020-03-13 | 李亦博 | Cantilever for vertical axis wind turbine and wind turbine thereof |
| CN106505789A (en) * | 2016-12-20 | 2017-03-15 | 田曙光 | Electromotor lever and electromotor |
| RU2020136568A (en) * | 2020-11-06 | 2022-05-06 | Тепловетровые Технологии Ооо | AERODYNAMICLY SEMI-TRANSPARENT STAND OF A FOLDABLE WIND POWER PLANTS |
| CN112523967B (en) * | 2020-12-01 | 2022-02-15 | 上海电气风电集团股份有限公司 | Lattice type comprehensive shaft fan tower |
| CN112963301B (en) * | 2021-02-02 | 2022-08-12 | 江苏德克玛电气有限公司 | Connecting support for vertical generator fan blade support and generator main shaft |
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| JPH01305167A (en) * | 1988-05-16 | 1989-12-08 | Fa Ryu Sun | Vertical-shaft wind force turbine |
| CN102213180B (en) * | 2010-04-04 | 2013-07-10 | 李锋 | Fan of vertical shaft wind generating set |
| US7988413B2 (en) * | 2010-04-23 | 2011-08-02 | Eastern Wind Power | Vertical axis wind turbine |
| CN201865838U (en) * | 2010-11-24 | 2011-06-15 | 东北农业大学 | Wind turbine combining lift force and resistance force |
| CN102619679A (en) * | 2011-01-28 | 2012-08-01 | 李锋 | Vertical shaft wind wheel and wind generating set with same |
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