CN203847324U - Low-gravity-center efficient vertical axis wind turbine assembled with flow concentration blades - Google Patents
Low-gravity-center efficient vertical axis wind turbine assembled with flow concentration blades Download PDFInfo
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- CN203847324U CN203847324U CN201420230198.8U CN201420230198U CN203847324U CN 203847324 U CN203847324 U CN 203847324U CN 201420230198 U CN201420230198 U CN 201420230198U CN 203847324 U CN203847324 U CN 203847324U
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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
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- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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Abstract
The utility model relates to a low-gravity-center efficient vertical axis wind turbine assembled with flow concentration blades. The low-gravity-center efficient vertical axis wind turbine comprises a fixed tower and a wind wheel arranged on the tower. The wind wheel comprises a wheel support with the rotation center arranged on the tower and blades distributed on the periphery of the wheel support. The blades comprise the flow concentration blades and auxiliary blades. The flow concentration blades are composed of a set of ribs which are arranged in parallel, gaps are formed between the ribs, the outward blade faces of the auxiliary blades are concave, and the inward blade faces of the auxiliary blades are convex; the wheel support is composed of spokes which are evenly distributed in the circumferential direction and extend horizontally and correspond to each other vertically, and the outer ends of the spokes which vertically correspond to each other are fixedly or rotatably connected with the corresponding upper and lower portions of the flow concentration blades respectively. The middle portions of the spokes which correspond to each other vertically are fixedly or rotatably connected with the corresponding upper and lower portions of the auxiliary blades respectively. By means of the low-gravity-center efficient vertical axis wind turbine, wind power utilization performance of the flow concentration blades can be given to full play, and low-speed wind energy utilization performance of the low-wind-speed blades also can be given to full play.
Description
Technical field
The utility model relates to a kind of vertical axis windmill, and especially a kind of afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system, belongs to technical field of wind power generating equipment.
Background technique
According to the applicant understood, in the wind power generating set of operation, the wind energy conversion system overwhelming majority used 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 in the market, and wherein low wind speed poor performance, at average annual wind speed
the regional economical operation bad economic results of meter per second.In addition, this class wind energy conversion system operation noise is large, meeting produces infrasonic wave, be not suitable for using in city and community, but also the living environment that can endanger birds.
In addition, also have vertical axis windmill, the feature of this type of wind energy conversion system is that calm tropism requires, noise is little, does not produce infrasonic wave.Compared with horizontal-shaft wind turbine, vertical axis windmill can utilize dimensional airfoil blade, can utilize the lift of blade, can utilize again the thrust (also claiming resistance) of blade; When the each blade of its wind wheel is different in the time that wind energy conversion system moves, exert oneself, exert oneself but take over successively rotation, (vertical shaft blade rotates one week the cyclically-varying of blade load, 360 ° of variations of angle of attack experience, only have the angle of attack just can exert oneself, can not exert oneself in stall conditions at other angular ranges at approximately ± 20 ° of scope intra vanes).These features of vertical axis windmill are both advantageous and disadvantageous, and utilizing advantage, suppressing shortcoming is that research and development are applicable to average annual wind speed
the key of the vertical-shaft wind machine technology of meter per second area and urbanite's habitat environment.
Vertical axis windmill blade used has three class aerofoil profiles: the first kind is push type blade, adopts the wind wheel of such blade easily from running up, but the power coefficient Cp of such blade
max≤ 0.15 and rotating speed low, cannot be applicable to efficient wind-driven generator; Equations of The Second Kind is the symmetrical airfoil blade of lift-type, and the aerofoil profile of such blade is NACAOOxy (x=1 or 2; Y=0,1 ..., 8 or 9), its Cp
maxheight, the Cp of some blade
maxcan reach 0.45, but adopt the wind wheel of such blade certainly to run up; The 3rd class is that the suction surface of lift-type is the airfoil fan that convex, pressure side have spill, and such blade quantity is numerous, its Cp
maxbetween 0.20-0.30, adopt the wind wheel of such blade certainly to run up, but play torque lower than first kind blade and Cp
maxcorresponding rotating speed is lower than Equations of The Second Kind blade.
At present, utilize the vertical axis windmill of lift-type airfoil fan, substantially adopt " Φ " wind wheel or " H " wind wheel of Darrieus technology, the common characteristic of these two kinds of wind wheels is main axis length >=wind wheel height, thereby these two kinds of wind wheel centers of gravity are higher, in order to ensure the stability of whole wind wheel, require wind wheel main shaft to there are very high strength and stiffness, cause main shaft weight very heavy.Wherein, " Φ " wind wheel forms (conventionally adopting thin airfoil blade) by the aforementioned Equations of The Second Kind blade of " rope skipping curve " shape, blade two ends are directly connected in main shaft (if will solve " Φ " wind wheel from running up, the aforementioned first kind blade of serpentine also can be connected in to main shaft).The blade that " Φ " wind wheel adopts will have enough flexibilities, its Cp
maxcorresponding tip-speed ratio λ is higher, cause " Φ " wind wheel in low wind speed poor performance." H " wind wheel great majority are crossed cantilever by aforementioned the 3rd class blade pass and are connected in main shaft and form, and tremble for suppressing blade, require cantilever to have very high strength and stiffness, cause cantilevered weights very heavy; Meanwhile, the 3rd class blade Cp
maxcorresponding Optimum Leaves width (also claiming chord length) is than the large 50-60% of aforementioned Equations of The Second Kind blade, and correspondingly, leaf weight also will weigh 80-100%.Be limited by this, under equal height, weight ratio " Φ " wind wheel of " H " wind wheel will weigh 1-2 doubly, and its centrifugal load is larger, requires higher to the strength and stiffness of main shaft.
As can be seen here, lower the center of gravity and weight reduction, increase high Cp
maxthe torque that rises of aerofoil profile is to design two technological break-through points of high-efficient wind turbine, particularly improves the break-through point of low wind speed performance in wind energy conversion system.
The present utility model people discloses the blower fan of a kind of vertical shaft (also claiming vertical shaft) wind power generating set in Chinese invention patent on April 4th, 2010 application, the patent No. 201010162074.7, notice of authorization CN102213180B.But this technological scheme remains in following main disadvantage: (1) interlayer support parts are too too fat to move, larger to interference in air flow, affect the Wind Power Utilization performance of blade; (2) interlayer support structure is optimized not, causes the strength and stiffness in its unit weight lower, and the strength and stiffness that reach expection still need larger weight, are unfavorable for alleviating wind wheel weight; (3) the adapting structure for electric intensity between wheel carrier and the main shaft of wind wheel is poor, but will certainly increase wind wheel weight for improving intensity, and this problem causes wind wheel to maximize; (4) cannot realize the control of wind energy conversion system power.Need badly and develop higher interlayer support structure and the adapting structure for electric of intensity in unit weight, thereby in reaching expection intensity, can not increase wind wheel weight, even alleviate wind wheel weight; Develop the structure that can realize power control simultaneously, expand the wind speed range of wind energy conversion system operation by power control, improve generated energy.
The utility model claimant discloses a kind of multiple wing afflux blade that efficiently utilizes wind energy in Chinese invention patent application on May 17th, 2012 application, application number 201210152431.0, application publication number CN102661239A, belong to afflux blade, can make full use of Bernoulli effect, the fluid in the interplane territory of flowing through is produced to afflux effect, improve the Wind Power Utilization performance of blade.Develop and also need badly at present the vertical axis windmill that can effectively bring into play such blade Wind Power Utilization performance.
In addition, the present utility model people discloses a kind of wing panels of blower fan that utilizes low velocity wind energy to produce power in Chinese invention patent on December 20th, 2004 application, the patent No. 200410073422.8, notice of authorization CN100392240C, belong to low wind speed blade, can effectively utilize the wind energy of lower wind speed.Need badly equally at present and develop the vertical axis windmill that can effectively bring into play such blade low velocity wind energy utility.
Summary of the invention
Technical problem to be solved in the utility model is: overcome the problem that prior art exists, a kind of afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system is provided, adopt afflux blade and the low wind speed blade that can improve torque to coordinate, can effectively bring into play the Wind Power Utilization performance of this two classes blade.
It is as follows that the utility model solves the basic technical scheme of its technical problem:
A kind of afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system, comprises and determines the fixed gantry of vertical spin axis and be supported in the wind wheel on pylon, described wind wheel and pylon form the pair that horizontally rotates of axial constraint; Described wind wheel comprises that rotating center 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 comprises afflux blade and the auxiliary blade that one group of alternate intervals distributes; Described afflux blade and auxiliary blade are respectively the streamlined cross-section blade of vertical extension, and described afflux blade is made up of one group of parallel fin of arranging and leave each other space; Described wheel carrier comprises the spoke of one group of circumferential uniform horizontal-extending and upper and lower corresponding, the spoke of described wheel carrier forms respectively a rotating center and is supported in transmission frame and at least one connecting frame of pylon, and described connecting frame is fixedly connected with adjacent connecting frame or transmission frame through supporting element; The outer end of described transmission frame, connecting frame spoke is directly fixedly connected with the upper and lower corresponding site of described afflux blade respectively or is fixedly connected with or is rotationally connected with the first fixed block that is fixed on afflux blade; The middle part of described transmission frame, connecting frame spoke is directly fixedly connected with the upper and lower corresponding site of described auxiliary blade respectively or is fixedly connected with or is rotationally connected with the second fixed block that is fixed on auxiliary blade.
Afflux blade is positioned at spoke outer end, auxiliary blade is positioned at spoke middle part, can make like this two kinds of blade organic assembling, forms the effect of the performance Wind Power Utilization performance of mutually promoting.
Claimant finds through going deep into practical studies, while adopting said structure afflux blade is fixedly connected with auxiliary blade or is rotationally connected with wheel carrier, can effectively bring into play the Wind Power Utilization performance of afflux blade and auxiliary blade; Especially in the time that employing is rotationally connected mode, on the one hand in the rotation of wind-drive wind wheel, afflux blade automatic winding under wind-force effect is rotationally connected a little and turns an angle, make wind energy enough farthest enter the space in afflux blade, thereby give full play to the Wind Power Utilization performance of afflux blade; On the other hand, the auxiliary blade of said structure belongs to low wind speed blade, can effectively utilize the wind energy of lower wind speed, in the rotation of wind-drive wind wheel, auxiliary blade also can be under wind-force effect automatic winding be rotationally connected a little and turn an angle, not only can utilize better low wind speed wind energy, and make afflux blade under low wind speed, also can utilize wind energy, and wind wheel moment of rotation can improve wind wheel and play torque and reduce high wind speed time, improve the wind energy utilization efficiency of wind energy conversion system.In addition, said structure can effectively reduce wind wheel center of gravity, reduces wind wheel weight.
Preferably, described wheel carrier adopts the first structure:
Described transmission frame middle part is regular polygon and is provided with truss; Described truss is made up of the first flange and the loading arm that is distributed in the first flange circumferentially and radially extend, and described loading arm end is connected with the middle part on the transmission frame each summit of regular polygon, middle part or the each limit of regular polygon respectively; In the time that described truss loading arm end is connected with the middle part on the each limit of regular polygon, transmission frame middle part respectively, described transmission frame middle part is also provided with the connecting rod being connected with loading arm between the adjacent both sides of regular polygon; Described the first flange forms the rotating center of transmission frame, and forms the pair that horizontally rotates of axial constraint with pylon top.
More preferably, described wind wheel also comprise be rotationally connected with pylon top and axis along the main shaft of vertical layout or the power input shaft of load, described the first flange and main shaft or be coaxially connected with power input shaft; The each fin of described afflux blade aerofoil is outwardly spill and aerofoil is inwardly convex, the curved shape in space between adjacent fins; The blade face outwardly of described auxiliary blade be spill and inwardly blade face be convex.
Thereby adopt the first structure can utilize the power input shaft of load to save the main shaft of wind wheel, can lower the center of gravity to greatest extent and alleviate wind wheel weight, reduce cost again.Simultaneously, adopt after the transmission frame of this structure, its truss is as the adapting structure for electric between wheel carrier and load power input shaft, and the intensity in its unit weight is higher, can not increase wind wheel weight in intensity, even can alleviate wind wheel weight reaching expection, thereby wind wheel can effectively be maximized.In addition, the first structure also can be used for the wind wheel being connected with pylon top main shaft.
Preferably, described wheel carrier adopts the second structure:
Described transmission frame middle part is regular polygon and is provided with truss; Described truss is arranged up and down by two and second, third coaxial flange, and the loading arm that is distributed in respectively second, third flange and circumferentially and radially extends and strengthen arm and form, described loading arm and the end of strengthening arm are connected with the each summit of regular polygon, transmission frame middle part respectively; Between corresponding loading arm and reinforcement arm, be provided with at least one muscle; Described second, third flange forms the rotating center of transmission frame, and forms the pair that horizontally rotates of axial constraint with pylon top.
More preferably, described wind wheel also comprise be rotationally connected with pylon top and axis along the main shaft of vertical layout or the power input shaft of load, described second, third flange is coaxially connected with main shaft or power input shaft respectively; The each fin of described afflux blade aerofoil is outwardly spill and aerofoil is inwardly convex, the curved shape in space between adjacent fins; The blade face outwardly of described auxiliary blade be spill and inwardly blade face be convex.
In the second structure, truss is as the adapting structure for electric between wheel carrier and main shaft, and the intensity in its unit weight is higher, can not increase wind wheel weight in intensity, even can alleviate wind wheel weight reaching expection, thereby wind wheel can effectively be maximized., adopt after the second structure, wind wheel is stressed to have good uniformity meanwhile, is more conducive to wind wheel and rotates.In addition, the second structure also can be used for the wind wheel being connected with pylon top load power input shaft.
Preferably, described the first fixed block is for having the outer peripheral plate of streamline, plate face and the afflux vane end faces of described plate are connected, and described plate is extended with outstanding ear towards transmission frame or connecting frame, and described outstanding ear is fixedly connected with or is rotationally connected with the outer end of transmission frame, connecting frame spoke; Or, described the first fixed block is for having the outer peripheral garter spring of streamline, described garter spring inward flange hoop is circumferential in afflux blade, and described garter spring outward edge is extended with outstanding ear towards transmission frame or connecting frame, and described outstanding ear is fixedly connected with or is rotationally connected with the outer end of transmission frame, connecting frame spoke; Described the second fixed block is " V " shape part with two outer ends and a corner end, two outer ends of described " V " shape part are connected with blade face inwardly or the vane end faces of auxiliary blade respectively, and the corner end of described " V " shape part is fixedly connected with or is rotationally connected with the middle part of transmission frame, connecting frame spoke; Or described the second fixed block is that one end is fixedly connected with or is rotationally connected with the spoke of transmission frame or connecting frame, the other end and the auxiliary blade straight plate that blade face is connected inwardly.
Fixed block itself can not affect afflux blade, the utilization of auxiliary blade to wind energy like this, and in the time being rotationally connected, be conducive to afflux blade, auxiliary blade rotates swimmingly, can bring into play better the Wind Power Utilization performance of afflux blade and the low wind speed wind energy utility of auxiliary blade.
For realizing the control of wind energy conversion system power, the utility model further perfect technological scheme is as follows:
Preferably, described the first fixed block is provided with the telescopic controller in order to rotor blade angle between a side of transmission frame or connecting frame and transmission frame or connecting frame spoke, or described the second fixed block is near being provided with the telescopic controller in order to rotor blade angle between the position of blade and transmission frame or connecting frame spoke; Described controller is elastic member, or described controller is the electric controller of the external control apparatus of controlled end.
In the time that being elastic member, controller can implement the control of wind energy conversion system power in the mode of the force balance between blade centrifugal force and elastic force; In the time that being electric controller, controller can implement the control of wind energy conversion system power in the mode of electronic control.Implement, after the control of wind energy conversion system power, can expand the wind speed Applicable scope of wind energy conversion system.
For simplified support structure, avoid interference air-flow, affect the Wind Power Utilization performance of blade; Meanwhile, for improving the strength and stiffness in supporting structure unit weight, in order to alleviating wind wheel weight, the utility model further perfect technological scheme is as follows:
Described transmission frame middle part is with connecting frame middle part the regular polygon that shape is identical and each corresponding sides are parallel to each other; Between the described transmission frame each summit of regular polygon, middle part and the each summit of regular polygon, connecting frame middle part, be connected through supporting element; Described supporting element comprises the straight-bar of the transmission frame that is connected, the each corresponding vertex of connecting frame middle part regular polygon, between described straight-bar and the dual-side on summit, is also provided with diagonal brace; Or described supporting element is " X " shape part with four ends, described " X " shape part both upper ends thereof, two ends, bottom are connected with two adjacent vertexs of transmission frame or connecting frame respectively, and described " X " shape part is positioned at the same side of transmission frame and connecting frame; Or described supporting element is to be connected the straight-bar of the each corresponding vertex of transmission frame, connecting frame middle part regular polygon.
Claimant finds through going deep into practical studies, adopts after above-mentioned preferred structure, can not only avoid interference air-flow, can also in meeting the requirement of expection Rigidity and strength, further alleviate wind wheel weight.
Preferably, the company's of being provided with muscle also between the adjacent spoke in regular polygon outside, described transmission frame middle part, plays reinforcement effect; Between the adjacent spoke of described connecting frame middle part regular polygon, be also provided with connecting rod; Or, between the adjacent spoke in regular polygon outside, described connecting frame middle part, be also provided with connecting rod, play reinforcement effect.
Preferably, described connecting frame have at least two and with transmission frame form at least two-layer spoke, every layer of spoke is separately installed with corresponding blade, the blade of installing on adjacent two layers spoke is interspersed.
The probability windward that can improve so the best angle of attack of blade, more easily runs up wind wheel, can reduce length of blade with the form of segmentation again, thereby reduces manufacture, transport and the installation cost of blade.
Compared with prior art, the beneficial effects of the utility model are as follows:
(1) by assembly afflux blade and low wind speed blade, optimize linkage structure, this body structure of wheel carrier and the blade anchor structure of blade and wheel carrier, guarantee that the Wind Power Utilization performance of afflux blade and the low velocity wind energy utility of low wind speed blade can be not fully exerted, can reduce wind wheel center of gravity and alleviate wind wheel weight simultaneously.
(2) by arranging and optimizing truss structure, make the intensity in adapting structure for electric unit weight higher, maximize thereby be conducive to wind wheel.
(3) by optimizing supporting structure, can not only avoid interference air-flow, can also further alleviate wind wheel weight by the strength and stiffness that improve in supporting structure unit weight.
(4) by segmentation, be staggered installation of blade, improved the probability windward of the best angle of attack of blade and the wind wheel that more easily runs up, and reduced manufacture, transport and the installation cost of blade.
Brief description of the drawings
Fig. 1 is the utility model embodiment 1 structural representation.
Fig. 2, Fig. 3, Fig. 4 are respectively A, B, the C regional enlarged drawing of Fig. 1.
Fig. 5, Fig. 6 are respectively the anchor structure figure in Fig. 3, Fig. 4.
Fig. 7 is the structural representation of Fig. 1 embodiment wheel carrier.
Fig. 8 is the structural representation of Fig. 1 embodiment transmission frame and truss.
Fig. 9, Figure 10 are respectively the structural representation of Fig. 1 embodiment connecting frame, supporting element.
Figure 11 to Figure 13 is the afflux blade structure schematic diagram that can be used for Fig. 1 embodiment.
Figure 14 to Figure 22 is other transmission frame schematic diagram that the utility model can be used for embodiment 1.
Figure 23 to Figure 25 is the transmission frame schematic diagram that the utility model can be used for having main shaft structure.
Figure 26 to Figure 28 is respectively the truss structure schematic diagram in Figure 23 to Figure 25.
Figure 29 to Figure 35 is other connecting frame schematic diagram that the utility model can be used.
Figure 36 to Figure 37 is other supporting element schematic diagram that the utility model can be used.
Figure 38 is the schematic diagram that the utility model wind wheel has main shaft structure.
Figure 39 is the another kind of structural representation of Fig. 1 embodiment the first fixed block.
Figure 40 is the utility model embodiment 2 structural representation.
Figure 41 is the utility model embodiment 3 structural representation.
Figure 42 is the D regional enlarged drawing of Figure 41.
Embodiment
With reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in further detail.But the utility model is not limited to given example.
Embodiment 1
The present embodiment afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system as shown in Figure 1, comprises and determines the fixed gantry 1 of vertical spin axis and be supported in the wind wheel 2 on pylon 1, and wind wheel 2 and pylon 1 form the pair that horizontally rotates of axial constraint; Wind wheel 2 comprises that rotating center is supported in the wheel carrier 3 of pylon 1 and is distributed in the blade of wheel carrier 3 peripheries; Blade comprises afflux blade 4 and the auxiliary blade 4-1 that one group of alternate intervals distributes; Afflux blade 4 and auxiliary blade 4-1 are respectively the streamlined cross-section blade of vertical extension; As shown in Figure 11 to Figure 13, afflux blade 4 is made up of one group of parallel fin 5 of arranging and leave each other space; As shown in Figure 4, the blade face outwardly of auxiliary blade 4-1 be spill and inwardly blade face be convex; Wheel carrier 3 is made up of the spoke of one group of circumferential uniform horizontal-extending and upper and lower corresponding, the spoke outer end of upper and lower corresponding is rotationally connected with the upper and lower corresponding site of afflux blade 4 respectively, and the spoke middle part of upper and lower corresponding is rotationally connected with the upper and lower corresponding site of auxiliary blade 4-1 respectively.
Particularly, as shown in Figure 7, the spoke of wheel carrier 3 forms respectively a rotating center and is supported in transmission frame 6 and a connecting frame 7 of pylon 1, and connecting frame 7 is fixedly connected with adjacent transmission frame 6 through supporting element 11; The outer end of transmission frame 6, connecting frame 7 spokes is rotationally connected with the first fixed block 8 that is fixed on afflux blade 4 respectively; As shown in Figure 11 to Figure 13, the each fin 5 of afflux blade 4 aerofoil is outwardly spill and aerofoil is inwardly convex, the curved shape in space between adjacent fins 5; The middle part of transmission frame 6, connecting frame 7 spokes is rotationally connected with the second fixed block 14 that is fixed on auxiliary blade 4-1 respectively.It should be noted that, what the present embodiment adopted is a connecting frame 7 and a single layer structure that transmission frame 6 forms, the connecting frame that connecting frame that more and existing connecting frame is connected or setting and existing transmission frame are connected also can be set on this basis, form two-layer above structure.
As shown in Fig. 3, Fig. 5, the first fixed block 8 is for having the outer peripheral garter spring of streamline, garter spring inward flange hoop is circumferential in afflux blade 4, and garter spring outward edge is extended with outstanding ear 8-1 towards transmission frame 6 or connecting frame 7, and the outer end of outstanding ear 8-1 and transmission frame 6, connecting frame 7 spokes is rotationally connected.It should be noted that, as shown in figure 39, the first fixed block 8 can also be for having the outer peripheral plate of streamline, the plate face of plate and afflux blade 4 end faces are connected, plate is extended with outstanding ear 8-1 towards transmission frame 6 or connecting frame 7, and the outer end of outstanding ear 8-1 and transmission frame 6, connecting frame 7 spokes is rotationally connected.
As shown in Fig. 4, Fig. 6, the second fixed block 14 is for having " V " shape part of two outer end 14-1 and a corner end 14-2, two outer end 14-1 of " V " shape part are connected with the blade face inwardly of auxiliary blade 4-1 respectively, and the middle part of the corner end 14-2 of " V " shape part and transmission frame 6, connecting frame 7 spokes is rotationally connected.It should be noted that, two outer end 14-1 of " V " shape part also can be connected with the vane end faces of auxiliary blade 4-1 respectively.
As shown in Fig. 2, Fig. 8, the power input shaft 13 of pylon 1 top and load is rotationally connected, and the axis of power input shaft 13 is along vertical layout; Transmission frame 6 middle parts are provided with the first flange 10-6 that forms rotating center, and the first flange 10-6 is fixedly connected with power input shaft 13; The first flange and pylon top form the pair that horizontally rotates of axial constraint.
Particularly, transmission frame 6 middle parts are regular polygon and are provided with truss 10; Truss 10 comprises the first flange 10-6, the first flange 10-6 is fixedly connected with power input shaft 13, the first flange 10-6 is circumferentially evenly equipped with the loading arm 10-3 radially extending, loading arm 10-3 end is connected with the middle part on the transmission frame 6 each limits of regular polygon, middle part respectively, and transmission frame is also provided with the connecting rod 10-7 being connected with loading arm 10-3 end between the 6 adjacent both sides of middle part regular polygon.It should be noted that, loading arm 10-3 end also can be connected with the transmission frame 6 each summits of middle part regular polygon respectively.
As shown in Fig. 8 to Figure 10, transmission frame 6 middle parts are the regular polygon that shape is identical and each corresponding sides are parallel to each other (the present embodiment is equilateral triangle) with connecting frame 7 middle parts; Between the adjacent spoke of connecting frame 7 middle part regular polygons, be also provided with connecting rod 7-2; Between the transmission frame 6 each summits of middle part regular polygon and the connecting frame 7 each summits of middle part regular polygon, be connected by supporting element 11; Supporting element 11 comprises the straight-bar 11-1 of the transmission frame 6 that is connected, the each corresponding vertex of connecting frame 7 middle part regular polygon, between straight-bar 11-1 and the dual-side on summit, is also provided with diagonal brace 11-2.
It should be noted that, also can be fixedly connected with the outer end of transmission frame, connecting frame spoke with upper fixing element, thereby afflux blade, auxiliary blade are fixedly connected with wheel carrier spoke.
Embodiment 2
As shown in figure 40, basic structure is identical with embodiment 1 for the present embodiment afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system, and difference is only:
(1) connecting frame has two and form two-layer spoke with transmission frame, and every layer of spoke is separately installed with corresponding afflux blade 4, auxiliary blade 4-1, and the afflux blade 4 or the auxiliary blade 4-1 that on adjacent two layers spoke, install are interspersed.
(2) first fixed blocks 8 are as shown in Fig. 5, Figure 39; The second fixed block 14 as shown in Figure 6.
(3) as shown in figure 37, supporting element 11 is for having " X " shape part of four ends, and " X " shape part both upper ends thereof, two ends, bottom are connected with two adjacent vertexs of transmission frame or connecting frame respectively, and " X " shape part is positioned at the same side of transmission frame and connecting frame.
(4) as shown in figure 19, connecting frame structure as shown in figure 35 for transmission mount structure.
Embodiment 3
The present embodiment afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system is as shown in Figure 41, Figure 42, and basic structure is identical with embodiment 1, and difference is only:
(1) first fixed block 8 is provided with the telescopic controller 12 in order to rotor blade angle between a side of transmission frame or connecting frame and transmission frame or connecting frame spoke; Controller 12 is elastic member, or controller 12 is the electric controller of the external control apparatus of controlled end.It should be noted that, the second fixed block 14 is near being also provided with the telescopic controller 12 in order to rotor blade angle between the position of blade and transmission frame or connecting frame spoke.
(2) as shown in figure 36, supporting element 11 is the straight-bar of the transmission frame that is connected, the each corresponding vertex of connecting frame middle part regular polygon.
Particularly, controller 12 can be elastic member, and in the time applying or cancel external force, its length can change or reply, in the time that a certain wind speed makes wind energy conversion system rotation speed change, blade centrifugal force changes thereupon, and blade turns an angle as axle center taking fixed block 8 and transmission frame 6 or being rotationally connected a little of connecting frame 7, controller 12 is elongated or shortened, thereby change the effect of air-flow to blade, this effect causes again the reverse feedback of wind energy conversion system rotating speed and blade centrifugal force to change, the elastic force of this Time Controller 12 makes the length of controller 12, wind energy conversion system rotating speed and blade centrifugal force all produce reverse feedback again to be changed, and blade is turned an angle round about, in such circulation, the amplitude of variation of each variable is more and more less, until transient equiliblium is set up, till blade no longer rotates.
Like this, on the one hand can immediate feedback and cost low, also undertaken by elastic material is instantaneous from starting to change to the feedback that starts to control, control on the other hand reliability high and non-maintaining.
In addition, controller 12 also can adopt the electric controller of the external control apparatus of controlled end, but, in the time of electronic control, from start to change to the feedback that starts to control, there is response time delay on the one hand, the response time cost of shorter electronic control is higher, will improve on the other hand reliability and can only adopt expensive electric elements, and need periodic maintenance.
In addition to the implementation, the utility model can also have other mode of executions, for example:
(1) wind wheel also can adopt main shaft structure, as shown in Figure 38, Figure 23, Figure 26: wind wheel 2 also comprise be rotationally connected with pylon 1 top and axis along the main shaft 9 of vertical layout; Transmission frame 6 middle parts are regular polygon and are provided with truss 10; Truss 10 comprises that two arrange and coaxial second, third flange 10-1,10-2 up and down, second, third flange 10-1,10-2 are located at respectively main shaft 9 circumferentially and are connected with main shaft 9, second, third flange 10-1,10-2 are circumferentially evenly equipped with respectively the loading arm 10-3 radially extending and strengthen arm 10-4, and the end of loading arm 10-3 and reinforcement arm 10-4 is connected with the transmission frame 6 each summits of middle part regular polygon respectively; Between corresponding loading arm 10-3 and reinforcement arm 10-4, be provided with at least one muscle 10-5; Second, third flange 10-1,10-2 form the rotating center of transmission frame 6, and form the pair that horizontally rotates of axial constraint with pylon top.Propping up between muscle 10-5, loading arm 10-3, reinforcement arm 10-4 of truss 10 forms multiple triangular support structure.
(2) transmission frame 6 can have various structures form, and transmission frame 6 middle parts can be equilateral triangle, square, regular pentagon, regular hexagon etc.
Part is used for embodiment 1 example as shown in Figure 14 to Figure 22, wherein, Figure 19, Figure 21, Tu22Zhong, transmission frame 6 middle parts are regular hexagon.
Part for the example that has a main shaft structure as shown in Figure 23 to Figure 25, wherein, is also provided with connecting rod 10-8 between the adjacent loading arm 10-3 of truss 10 in Figure 25, the company's of being provided with muscle 6-1 also between the adjacent spoke in transmission frame 6 regular polygons outsides, middle part in Figure 26.In addition,, as shown in Figure 26 to Figure 28, for there being the truss 10 of main shaft structure, a muscle 10-5 can have one or more.
(3) connecting frame 7 can have various structures form, and connecting frame 7 middle parts can be equilateral triangle, square, regular pentagon, regular hexagon etc.; Part example is as shown in Figure 29 to Figure 35, and wherein, in Figure 35, connecting frame 7 middle parts are regular hexagon, in Figure 31 and Figure 33, between the adjacent spoke in connecting frame 7 regular polygon outsides, middle part, is also provided with connecting rod 7-1.
(4) second fixed blocks also can adopt following structure: the second fixed block is that one end is fixedly connected with or is rotationally connected with the spoke of transmission frame or connecting frame, the other end and the auxiliary blade straight plate (not shown) that blade face is connected inwardly.
All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (10)
1. an afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system, comprises and determines the fixed gantry of vertical spin axis and be supported in the wind wheel on pylon, described wind wheel and pylon form the pair that horizontally rotates of axial constraint; Described wind wheel comprises that rotating center 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 comprises afflux blade and the auxiliary blade that one group of alternate intervals distributes; Described afflux blade and auxiliary blade are respectively the streamlined cross-section blade of vertical extension, and described afflux blade is made up of one group of parallel fin of arranging and leave each other space; Described wheel carrier comprises the spoke of one group of circumferential uniform horizontal-extending and upper and lower corresponding, the spoke of described wheel carrier forms respectively a rotating center and is supported in transmission frame and at least one connecting frame of pylon, and described connecting frame is fixedly connected with adjacent connecting frame or transmission frame through supporting element; The outer end of described transmission frame, connecting frame spoke is directly fixedly connected with the upper and lower corresponding site of described afflux blade respectively or is fixedly connected with or is rotationally connected with the first fixed block that is fixed on afflux blade; The middle part of described transmission frame, connecting frame spoke is directly fixedly connected with the upper and lower corresponding site of described auxiliary blade respectively or is fixedly connected with or is rotationally connected with the second fixed block that is fixed on auxiliary blade.
2. afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system according to claim 1, is characterized in that, described wheel carrier adopts the first structure:
Described transmission frame middle part is regular polygon and is provided with truss; Described truss is made up of the first flange and the loading arm that is distributed in the first flange circumferentially and radially extend, and described loading arm end is connected with the middle part on the transmission frame each summit of regular polygon, middle part or the each limit of regular polygon respectively; In the time that described truss loading arm end is connected with the middle part on the each limit of regular polygon, transmission frame middle part respectively, described transmission frame middle part is also provided with the connecting rod being connected with loading arm between the adjacent both sides of regular polygon; Described the first flange forms the rotating center of transmission frame, and forms the pair that horizontally rotates of axial constraint with pylon top.
3. afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system according to claim 2, it is characterized in that, described wind wheel also comprise be rotationally connected with pylon top and axis along the main shaft of vertical layout or the power input shaft of load, described the first flange and main shaft or be coaxially connected with power input shaft; The each fin of described afflux blade aerofoil is outwardly spill and aerofoil is inwardly convex, the curved shape in space between adjacent fins; The blade face outwardly of described auxiliary blade be spill and inwardly blade face be convex.
4. afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system according to claim 1, is characterized in that, described wheel carrier adopts the second structure:
Described transmission frame middle part is regular polygon and is provided with truss; Described truss is arranged up and down by two and second, third coaxial flange, and the loading arm that is distributed in respectively second, third flange and circumferentially and radially extends and strengthen arm and form, described loading arm and the end of strengthening arm are connected with the each summit of regular polygon, transmission frame middle part respectively; Between corresponding loading arm and reinforcement arm, be provided with at least one muscle; Described second, third flange forms the rotating center of transmission frame, and forms the pair that horizontally rotates of axial constraint with pylon top.
5. afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system according to claim 4, it is characterized in that, described wind wheel also comprise be rotationally connected with pylon top and axis along the main shaft of vertical layout or the power input shaft of load, described second, third flange is coaxially connected with main shaft or power input shaft respectively; The each fin of described afflux blade aerofoil is outwardly spill and aerofoil is inwardly convex, the curved shape in space between adjacent fins; The blade face outwardly of described auxiliary blade be spill and inwardly blade face be convex.
6. according to afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system described in claim 1 to 5 any one, it is characterized in that, described the first fixed block is for having the outer peripheral plate of streamline, plate face and the afflux vane end faces of described plate are connected, described plate is extended with outstanding ear towards transmission frame or connecting frame, and described outstanding ear is fixedly connected with or is rotationally connected with the outer end of transmission frame, connecting frame spoke; Or, described the first fixed block is for having the outer peripheral garter spring of streamline, described garter spring inward flange hoop is circumferential in afflux blade, and described garter spring outward edge is extended with outstanding ear towards transmission frame or connecting frame, and described outstanding ear is fixedly connected with or is rotationally connected with the outer end of transmission frame, connecting frame spoke; Described the second fixed block is " V " shape part with two outer ends and a corner end, two outer ends of described " V " shape part are connected with blade face inwardly or the vane end faces of auxiliary blade respectively, and the corner end of described " V " shape part is fixedly connected with or is rotationally connected with the middle part of transmission frame, connecting frame spoke; Or described the second fixed block is that one end is fixedly connected with or is rotationally connected with the spoke of transmission frame or connecting frame, the other end and the auxiliary blade straight plate that blade face is connected inwardly.
7. according to afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system described in claim 1 to 5 any one, it is characterized in that, described the first fixed block is provided with the telescopic controller in order to rotor blade angle between a side of transmission frame or connecting frame and transmission frame or connecting frame spoke, or described the second fixed block is near being provided with the telescopic controller in order to rotor blade angle between the position of blade and transmission frame or connecting frame spoke; Described controller is elastic member, or described controller is the electric controller of the external control apparatus of controlled end.
8. according to afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system described in claim 1 to 5 any one, it is characterized in that, described transmission frame middle part is with connecting frame middle part the regular polygon that shape is identical and each corresponding sides are parallel to each other; Between the described transmission frame each summit of regular polygon, middle part and the each summit of regular polygon, connecting frame middle part, be connected through supporting element; Described supporting element comprises the straight-bar of the transmission frame that is connected, the each corresponding vertex of connecting frame middle part regular polygon, between described straight-bar and the dual-side on summit, is also provided with diagonal brace; Or described supporting element is " X " shape part with four ends, described " X " shape part both upper ends thereof, two ends, bottom are connected with two adjacent vertexs of transmission frame or connecting frame respectively, and described " X " shape part is positioned at the same side of transmission frame and connecting frame; Or described supporting element is to be connected the straight-bar of the each corresponding vertex of transmission frame, connecting frame middle part regular polygon.
9. afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system according to claim 8, is characterized in that, the company's of being provided with muscle also between the adjacent spoke in regular polygon outside, described transmission frame middle part; Between the adjacent spoke of described connecting frame middle part regular polygon, be also provided with connecting rod, or, between the adjacent spoke in regular polygon outside, described connecting frame middle part, be also provided with connecting rod.
10. according to afflux blade assembly type centre of gravity efficient vertical axis wind energy conversion system described in claim 1 to 5 any one, it is characterized in that, described connecting frame have at least two and with transmission frame form at least two-layer spoke, every layer of spoke is separately installed with corresponding blade, and the blade of installing on adjacent two layers spoke is interspersed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230198.8U CN203847324U (en) | 2014-04-29 | 2014-04-29 | Low-gravity-center efficient vertical axis wind turbine assembled with flow concentration blades |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230198.8U CN203847324U (en) | 2014-04-29 | 2014-04-29 | Low-gravity-center efficient vertical axis wind turbine assembled with flow concentration blades |
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| CN203847324U true CN203847324U (en) | 2014-09-24 |
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| CN201420230198.8U Withdrawn - After Issue CN203847324U (en) | 2014-04-29 | 2014-04-29 | Low-gravity-center efficient vertical axis wind turbine assembled with flow concentration blades |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925153A (en) * | 2014-04-29 | 2014-07-16 | 苏州飞能可再生能源科技有限公司 | Low-gravity-center high-efficiency vertical axis wind turbine with assembled collecting blades |
| CN104314751A (en) * | 2014-10-08 | 2015-01-28 | 莫海路 | Vertical axis wind turbine and wind energy ship with same |
-
2014
- 2014-04-29 CN CN201420230198.8U patent/CN203847324U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925153A (en) * | 2014-04-29 | 2014-07-16 | 苏州飞能可再生能源科技有限公司 | Low-gravity-center high-efficiency vertical axis wind turbine with assembled collecting blades |
| CN103925153B (en) * | 2014-04-29 | 2016-11-23 | 苏州飞能可再生能源科技有限公司 | Afflux vane group distribution type centre of gravity efficient vertical axis wind energy conversion system |
| CN104314751A (en) * | 2014-10-08 | 2015-01-28 | 莫海路 | Vertical axis wind turbine and wind energy ship with same |
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