CN101852179B - Multi-stage impeller wind-driven generator - Google Patents

Multi-stage impeller wind-driven generator Download PDF

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Publication number
CN101852179B
CN101852179B CN2009102107731A CN200910210773A CN101852179B CN 101852179 B CN101852179 B CN 101852179B CN 2009102107731 A CN2009102107731 A CN 2009102107731A CN 200910210773 A CN200910210773 A CN 200910210773A CN 101852179 B CN101852179 B CN 101852179B
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China
Prior art keywords
wind
rotating shaft
impeller
force
pylon
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Expired - Fee Related
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CN2009102107731A
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CN101852179A (en
Inventor
卢国骥
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YAN SHUOQIN
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YAN SHUOQIN
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Priority to CN2009102107731A priority Critical patent/CN101852179B/en
Publication of CN101852179A publication Critical patent/CN101852179A/en
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Publication of CN101852179B publication Critical patent/CN101852179B/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/728Onshore wind turbines
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/74Wind turbines with rotation axis perpendicular to the wind direction

Abstract

The invention provides a multi-stage impeller wind-driven generator which comprises a tower post and a wind-driven generator, wherein the tower post is vertically provided with multiple layers of tower post bearing supports, each layer of tower post bearing support is provided with a perforation, the wind-driven generator comprises a vertical shaft and multiple wind-driven impellers, the vertical shaft penetrates through each layer of tower post bearing support and is rotatably fixed with each layer of tower post bearing support, the wind-driven impellers are respectively arranged in the spaces between the multiple layers of tower post bearing supports and are rotatably fixed on the vertical shaft, and the lower end of the vertical shaft is connected with a generator set. The multi-stage impeller wind-driven generator can be operated under the condition of a breeze with a wind speed of 2m/s to generate electricity, can also safely generate electricity under the condition of a strong wind, and has the advantages of reasonable structure, less easily worn parts, small maintenance capacity, convenient installation and maintenance and long service life up to 20-50 years.

Description

Multi-stage impeller wind-driven generator
The applicant has applied for utility model patent simultaneously with regard to the present invention.
Technical field
The invention belongs to technical field of wind power generation, relate to a kind of wind power plant, especially a kind of multi-stage impeller wind-driven generator.
Background technique
At present, wind-driven generator becomes development trend for obtaining bigger electric power, maximizing.Existing wind-driven generator is divided into horizontal shaft type generator and two kinds in vertical shaft type generator, these two kinds of generators, and in order to obtain the bigger amount of collecting folk songs, impeller blade length is done also increasingly.Tens tons, up to a hundred tons heavy generator set are arranged on more than 100 meter high support upper end, and the installation in high-altitude, debugging and repairing all must cooperate large-scale elevation and subsidence mechanical high-lift operation.Because center of gravity is higher, so this wind-driven generator is easy to collapse under high wind, causes a serious accident.Existing horizontal shaft type and vertical shaft type single impeller wind-driven generator when wind-force is excessive, realizes reducing the collecting folk songs safety of face protection power generating equipment all is through becoming the leaf-teeth roller box blade to be carried out the break-in adjusting; And change leaf-teeth roller box complex structure; Damage easily; Cause the rate of fault of this wind-driven generator very high thus, the fault of wind-driven generator 80% all goes out becoming on the leaf gearbox usually.In addition, so huge blade uses reinforced plastics usually in the existing technology, and the large-scale injection molding machining accuracy just is difficult to improve, and adds that this reinforced plastics is passed in time also can produce small contraction and aging gradually, has influenced the working life of unit like this.One of handling characteristics of wind-driven generator is to want scattered resettlement in the wilderness, and the fan blade of large-scale wind driven generator is positioned at peak, is subject to thunderbolt.The lightning arrester of wind-driven generator of the prior art will be installed on the blade; Be subject to the blade rotation structure, lightning-arrest poor effect, therefore; The time have the thunderstruck accident of wind-driven generator to take place; And be struck by lightning, often cause the Mechatronic Systems overvoltage, cause the damage of the breakdown and electric equipment of valuable parts such as the burning of blower fan automation control and communication device, generator; Except these components losses, the loss that also causes reparation can't generate electricity and bring therebetween is so damage to crops caused by thunder also is the serious problems that threaten blower fan safe operation and economical operation.
Summary of the invention
The objective of the invention is to improve the defective of existing technology; Provide a kind of rational in infrastructure; Can effectively resist the overturning of top-heavy wind tower, thunder and lightning smashes, and avoids that the wind tower is too high, the long hazards of blade strengthen inadequate natural endowments such as installation difficulty increasing; Make it weak wind and high wind and all can be fully used, and be convenient to a kind of multi-stage impeller wind-driven generator of installing, debug and repairing.
The objective of the invention is to realize like this:
Multi-stage impeller wind-driven generator provided by the invention; Comprise impeller shaft assembly, pylon and generator assembly; Said impeller shaft assembly comprises a rotating shaft, some wind-force impellers, and described some wind-force impellers are set in said rotating shaft vertically, between each said wind-force impeller and said rotating shaft, centrifugal clutch is set all; Make said wind-force impeller with said rotating shaft following two states arranged: the first is connected with said rotating shaft when a setting value is following at the rotating speed of wind-force impeller; Promote this rotating shaft and rotate, it two is that rotating speed wind-force impeller when a setting value is above at wind-force impeller breaks away from said rotating shaft and combines, and wind-force impeller dallies; Said impeller shaft assembly is set on this pylon, and said rotating shaft connects said generator set, and said rotating shaft is rotatably supported on the said pylon.
Said rotating shaft can be vertically to be provided with, and also can be horizontally disposed, can also be assembled state, i.e. rotating shaft comprises horizontally disposed, also comprises vertical setting.
Said rotating shaft vertically is provided with, and can be such structure: described some wind-force impellers are set on this vertical pivot, are provided with said centrifugal clutch between each said wind-force impeller and the vertical pivot; Can also be such structure: on this vertical pivot, connect some pole axles through driving mechanism; On each said pole axle, a said wind-force impeller is set; Between this wind-force impeller and the said pole axle said centrifugal clutch is set; Some wind-force impellers on the said vertical pivot, from bottom to top, its length of blade reduces gradually.
At this moment, said generator set is arranged on the lower end of said vertical pivot, and said vertical pivot is arranged on the said pylon rotationally.
Said rotating shaft is horizontally disposed with, and can be such structure: some wind-force impellers are set on this horizontal rotating shaft, are provided with said centrifugal clutch between each said wind-force impeller and the horizontal rotating shaft; Some wind-force impellers on the said horizontal rotating shaft, its length of blade equates or is unequal
End at this horizontal rotating shaft connects generator set perhaps, and this horizontal rotating shaft connects transmission device, is connected through the generator set of transmission device below being arranged on this horizontal rotating shaft; One end of said horizontal rotating shaft is arranged on the support of a setting, and perhaps, the two ends of this horizontal rotating shaft are arranged on the support.
A kind of combined type turning shaft structure; It comprises a horizontally disposed rotating shaft and a rotating shaft that vertically is provided with; Some wind-force impellers are set on this horizontal rotating shaft; Be provided with said centrifugal clutch between each said wind-force impeller and the horizontal rotating shaft, said horizontal rotating shaft is connected in the said rotating shaft of vertical setting through driving mechanism, drives this rotating shaft that vertically is provided with and rotates.
Said generator set is arranged on the said lower end that rotating shaft vertically is set.The rotating shaft of said level and the rotating shaft of said vertical setting all are arranged on the pylon rotationally.
Also has a kind of fabricated structure; Be that said rotating shaft is rotating shaft and at least two horizontally disposed rotating shafts that vertically are provided with; Said horizontally disposed rotating shaft is connected with the rotating shaft of said vertical setting through driving mechanism; In every said horizontally disposed rotating shaft, said several wind-force impellers are set, are provided with said centrifugal clutch between each said wind-force impeller and the horizontal rotating shaft; The length of blade of the wind-force impeller that is provided with on the horizontal rotating shaft of different heights setting up and down is that the length of blade of the impeller on the higher position horizontal rotating shaft is shorter; Each impeller on same horizontal rotating shaft, its length of blade can be identical, also can be different.Said generator set is arranged on the said lower end that rotating shaft vertically is set.The said vertical rotating shaft and the rotating shaft of level are arranged on the pylon rotationally.
The centrifugal clutch that is provided with between said wind-force impeller and the said rotating shaft; Comprise driving link, centrifugal body and driven member; Said driving link is wind-force impeller; Said driven member is the said rotating shaft that said impeller is set on it; The corresponding position is respectively equipped with combining of being complementary or breaks away from the combining structure that combines on this rotating shaft and the centrifugal body, and said centrifugal body can move between said wind-force impeller and said rotating shaft and make and combine with said rotating shaft or be fixed on the said wind-force impeller with breaking away from combination, between said centrifugal body and said wind-force impeller, also is provided with an elasticity reset device.Rotate by the wind-drive wind-force impeller; Below a certain setting rotating speed; Said centrifugal body combines to drive rotating shaft through said elasticity reset device tractive with said rotating shaft and rotates, and is increasing when wind-force, makes the rotating speed of wind-force impeller when said setting rotating speed is above; Centrifugal body is thrown out of and disengages with rotating shaft, impeller idle running this moment; Get back to the rotating speed of wind-force impeller when the abatement of wind and to set rotating speed or when following, under the effect of elasticity reset device, centrifugal body weight newly combines with rotating shaft, driving rotating shaft rotation.
Said pylon with said centrifugal clutch on the corresponding position of centrifugal body on also be provided with braking device, make after the rotating speed of said wind-force impeller surpasses said setting rotating speed, to be thrown out of afterwards to contact and slow down its rotating speed with this braking device.
Said centrifugal body and and said wind-force impeller between linkage structure can be: said centrifugal body is a pendulum; It is connected firmly by a tup and a swing arm connecting rod and forms; Swing arm connecting rod one end and said wind-force impeller hinged securement, tup and said rotating shaft corresponding position are provided with and can combine or break away from the combining structure that combines.
Combining structure between said centrifugal body and rotating shaft or pendulum and the rotating shaft can be multiple mechanical structure.For example, can be to establish single direction ratchet in the rotating shaft, corresponding moving tooth portion is set on centrifugal body or the pendulum.
A kind of concrete said centrifugal clutch can be such structure: the said centrifugal body in this centrifugal clutch comprises single direction ratchet, pendulum and Returnning spring; Said combining structure in the said rotating shaft be a single direction ratchet be arranged on the corresponding rotating shaft of said wind-force impeller on; Said pendulum comprise one with said ratchet on ratchet engagement or break away from engagement moving tooth portion tup and a swing arm connecting rod of said combining structure; One end of said swing arm connecting rod connects said tup; Its other end is hinged on the said wind-force impeller, between said commentaries on classics and swing arm connecting rod, connects said Returnning spring.
Further, on the pylon of every layer of pylon bearing support of correspondence, be centered around said pendulum outside and be provided with brake ring, be provided with friction plate on the outer end face of said tup and on the inwall of corresponding brake ring.
Blade on the said wind-force impeller is the cellular structure sandwich plate.
Said pylon is that cross section is leg-of-mutton triangle pylon, and/or said pylon cross section reduces from bottom to top; , the multilayer bearing support is set from top to bottom on pylon, perforation is set on bearing support supplies vertical rotating shaft setting, between said vertical rotating shaft and bearing support, bearing is set.
The blade of each said wind-force impeller is all within the framework of said pylon.
The rotating shaft of said vertical setting is a multi-segment structure, is connected through flexible coupling or elastic coupling flexible coupling between every section axle and the section axle, and each shaft part said wind-force impeller of correspondence all.
When rotating shaft when being horizontally disposed with, on the rotating shaft of this level and shaft part that generator set is connected, described flexibility or elastic coupling flexible coupling are set.
Top at said pylon is provided with lightning arrester.
Multi-stage impeller wind-driven generator provided by the invention has changed in the existing technology in order to increase the custom thinking that the face of collecting folk songs just increases single impeller simply, is employed in several wind-force impellers are set in the rotating shaft; Though the length of blade of each impeller has reduced; But than existing level axial length slurry single impeller wind-driven generator, the face of collecting folk songs of power generation system of the present invention distributes from top to bottom; The area of not only collecting folk songs does not reduce, and higher for the utilization ratio of wind-force.In the existing technology, a wind-force impeller is located at higher position, when the excessive vane angle speed of wind-force surpasses setting value, through becoming the angle of leaf-teeth roller box adjustment blade, reduces wind-exposuring area, reduces wheel speed to guarantee safety.Naturally the wind comes from, all be that eminence wind-force is bigger usually on short transverse, and lower wind-force is less; So when blowing high wind, the wind-force on the reduced levels height can be less relatively; And at this moment perhaps the wind-force of lower just in time be suitable as the Driving force of generator impeller; And existing wind-driven generator or do not establish impeller at low-level height, perhaps the length of blade of the set impeller of lower and eminence is the same, to all utilizations well of low latitude wind-force.And the present invention, owing to impeller is arranged from top to bottom, and from top to bottom, the length of blade of impeller increases gradually;, the vertical arrangement setting of the multi-stage impeller of this unprecedented innovation need not artificially to regulate wind direction to add strong wind; Can connect " octahedral the wind comes from ", and this wind-driven generator can be at the uniform velocity normally in very big wind ranges, generating incessantly; This wind-driven generator with vertical rotating shaft is an example, under high wind, begins from the shortest wind-force impeller of top vane; Combine with the rotating shaft disengaging successively, like this, can guarantee nonoverload; Safe power generation is under weak wind, for example under light breeze power situation; The wind-force impeller of the less position of some length of blade higher position that vertical pivot top is provided with still can be moving and promote rotating shaft and rotate and generate electricity by wind, so this wind-driven generator all can evenly generate electricity down in such as the large wind intensity region of high wind and weak wind.Therefore, this wind-driven generator can produce the electric power also bigger than conventional wind power generator.Simultaneously, the present invention changes in the existing technology and regulates the conventional structure of the blade angle of wind-force impeller through becoming the leaf-teeth roller box, solves high wind overload protection problem through centrifugal clutch is set between wind-force impeller and rotating shaft.Therefore, make the structure of this wind-driven generator simplify greatly, the head weight of holding cat head high significantly reduces; The overall structure center of gravity reduces greatly; Rate of fault, amount of maintenance also descend relatively significantly, thereby have both improved stability, have improved the working life and the Economy of wind-driven generator again.And; Use wind power generation impeller rotating assembly provided by the invention; The rotating shaft that is connected with impeller is horizontally disposed with can be not top-heavy as existing level shaft type wind-driven generator yet; Can avoid effectively that the wind tower is too high, leaf starches long hazards and strengthens, inadequate natural endowments such as installation difficulty increasing make the Security of wind-driven generator improve greatly.Multi-stage impeller structure in this wind power generation impeller rotating assembly and the power generation system adds the multi-segment structure of rotating shaft, can segmentation install when mounted, and be that less impeller is set aloft, so install, debugging and repair all very convenient.Therefore, multi-stage impeller wind-driven generator provided by the invention is rational in infrastructure, can effectively resist the high wind overturning, can make full use of wind energy and be convenient to installation, debugging and repair.
Description of drawings
Fig. 1 is the structural representation of a kind of structure of multi-stage impeller wind-driven generator provided by the invention;
Fig. 2 main sectional structure schematic representation that to be wind-force impeller combine through centrifugal clutch with vertical pivot;
Fig. 3 plan structure schematic representation that to be wind-force impeller combine through centrifugal clutch with vertical pivot;
Fig. 4 is for constituting the structural representation of the elastic coupling flexible coupling in the multi-section type vertical pivot;
Fig. 5 is the structural representation of another kind of vertical pivot multi-stage impeller wind-driven generator;
Fig. 6 is a kind of structural representation of horizontal shaft type multi-stage impeller wind-driven generator;
Fig. 7 is the structural representation of another kind of horizontal shaft type multi-stage impeller wind-driven generator;
The knockdown multi-stage impeller wind-driven generator of Fig. 8 vertical pivot and horizontal axis is the structural representation of matrix type impeller wind-force wind power generation impeller rotating assembly;
Fig. 9 is the structural representation of cellular structure impeller blade.
Embodiment
Like Fig. 1, shown in 2 and 3, multi-stage impeller wind-driven generator provided by the invention comprises the pylon 1 and a wind turbine generator of a triangular-section.
Said pylon 1 is that cross section is leg-of-mutton triangle pylon.This triangle pylon is compared with existing rectangular cross-section pylon, because its a plurality of side direction windward side is a lateral face, is difficult for by the wind overturning.This pylon 1 vertically be provided with several layers pylon bearing support 10 from top to bottom, on this pylon bearing support of each layer, be provided with perforation 11.
Said wind turbine generator comprises a vertical pivot 2 and some wind-force impellers 3; This vertical pivot 2 passes the perforation 11 on each layer pylon bearing support 10; Fixing with each layer pylon bearing support 10 rotationally through bearing 21; In the space between the said pylon bearing support of corresponding each layer a said wind-force impeller 3 is set respectively, said wind-force impeller 3 comprises the wheel hub platen 31 and the blade 32 that is installed in wheel hub platen gabarit at center, between the wheel hub platen 32 of wind-force impeller 3 and the vertical pivot 2 bearing 22 is set; Be rotatably mounted on the said vertical pivot 2 through the bearing wind-force impeller, connect generator set 5 in the lower end of said vertical pivot 2.
Between said wind-force impeller 3 and said vertical pivot 2, centrifugal clutch 4 is set; Make said wind-force impeller 3 with said vertical pivot 2 following two states arranged: the first is connected with said vertical pivot than hour wind-force impeller at wind-force; Promoting this vertical pivot rotates; It two is that wind-force impeller breaks away from said vertical pivot and combines when wind-force is big, and wind-force impeller dallies.
The said centrifugal clutch 4 that between each wind-force impeller 3 and said vertical pivot 2, is provided with can be such structure: like Fig. 2, shown in 3; This centrifugal clutch comprises single direction ratchet 41, pendulum 42 and Returnning spring 43; Said single direction ratchet 41 be arranged between said pylon bearing support with the corresponding vertical pivot 2 of said wind-force impeller on; Said pendulum 42 comprise one with said ratchet 41 on ratchet engagement or break away from tup 421 and a swing arm connecting rod 422 of engagement end; One end of said swing arm connecting rod 422 connects said tup 421; Its other end is hinged on through hinging shaft 423 on the wheel hub platen 31 of said wind-force impeller 3, between said vertical pivot 2 and swing arm connecting rod 422, connects said Returnning spring 43.
Under static state, the tup 421 on the pendulum 42 is meshed with single direction ratchet on the vertical pivot 2, when wind-force hour, wind-force impeller rotates, and can drive vertical pivot and rotate, thereby carry out wind-power electricity generation.When increasing Deng wind-force, make pendulum 42 receive bigger centrifugal force, tup 421 breaks away from engagement with ratchet, and at this moment, wind-force impeller dallies and do not drive the vertical pivot rotation.
The wind-force impeller of the present invention design when wind-force is big with the generator set structure that combines of the main shaft disengaging of turbogenerator for example, can avoid causing the damage of turbogenerator parts under high wind because of wind-force is excessive.Such design seems and does not utilize wind energy fully, but in fact is more reasonably to have utilized wind energy.Wind-force always strong lower of eminence a little less than.Horizontal axis wind-driven generator is built pylon increasingly high in order to obtain bigger wind-force in the existing technology, does not consider to utilize and add for the wind-force of lower.And wind-driven generator provided by the invention through multistage wind-force impeller is set on vertical pivot from top to bottom, also uses the wind-force of lower.When wind-force is big; Some wind-force impeller rotating speeds of vertical pivot top are too fast; Possibly have a negative impact to generator, then make it break away from the driving to vertical pivot through clutch, be the intensity of suitable generating and at this moment be in the wind-force that the wind-force impeller of lower position obtains; These impellers still are connected with vertical pivot, drive vertical pivot.Therefore, this wind-driven generator should be more abundant to the utilization of wind-force, and is also safer.Wind-force is excessive, and impeller and vertical pivot break away from engagement, grant asylum for generator system.Excessive wind-force makes the impeller high-speed rotation, and the fast idle that impeller breaks away from after the rotating shaft also has adverse effect for impeller itself.For fear of the excessive damage impeller of wind-force, can on said pylon bearing support, be provided with braking device, make when wind-force is above certain intensity after impeller breaks away from rotating shaft, can contact with this braking device and slow down its rotating speed.On the pylon of every layer of pylon bearing support 10 of correspondence, be centered around said pendulum 42 outsides and be provided with brake ring 44, on the madial wall of brake ring 44, be provided with friction plate 441, on the outer end face of said tup 421, be provided with friction plate 424.When wind-force is excessive, contact at the brake ring of action of centrifugal force lower ram 421 with its outside, under the effect of the friction plate on brake ring and the tup, can slow down to wind-force impeller, wind-force impeller is granted asylum.Braking device provided by the invention is because the centrifugal body in the clutch is that an end is hinged on the pendulum structure on the impeller, when wind-force increases; The tup of pendulum outwards moves under action of centrifugal force, contacts with brake ring to make rotating speed moment of impeller reduce, and tup promptly separates with brake ring; When wind speed increases again, tup can contact with brake ring but also separate not only, has just implemented a little to stop for impeller like this; Compared with holding brake tightly; Such point is stopped and can be slowed down stably to impeller, can not produce vibration, guarantees the safety of power generation system and the working life of blade.
In order to improve the intensity of wind-force impeller, the blade 32 on the said wind-force impeller can press from both sides bearing support (as shown in Figure 9) for cellular structure, and it can be for example aluminum alloy material manufacturing of light-weight metal, also can be the various material manufacture that adapt to Environmental Conditions.
Some wind-force impellers on the said vertical pivot of this wind turbine generator, from bottom to top, its length of blade reduces gradually.The blade of each said wind-force impeller is all within the framework of said pylon.Such structure can if pylon has lightning arrester, can be protected all impellers and generator set so that all wind-force impellers all are in the frame type high-tension shielding cover of pylon of triangular-section.
The lightning arrester 6 of pylon is installed in the top of pylon 1.
The vertical pivot of this wind-power generating system needs tens meters usually, even up to a hundred meters height, for the ease of making, reduces and installs and accuracy of manufacturing, and said vertical pivot 2 is preferably multi-segment structure, connects through flexible coupling between every section shaft part.And each shaft part correspondence is provided with a said wind-force impeller.Described coupling for example can be selected elastic coupling flexible coupling (as shown in Figure 4) for use.Concrete; This coupling 70 comprises elastic component 71, adpting flange 201 and adpting flange 72 and chek bolt 73, in the adjacent end of two shaft parts 20 flange 201,72 is set, and flange can weld with shaft part 20, also can be spirally connected is connected; Or connect firmly through interference fit; Between two shaft parts, be provided with by the elastic component that comprises that flexible material or elastic material are processed, connect two flanges, two shaft parts are coupled together through chek bolt 73.This segmentation structure of this vertical pivot 2 can compensate the skew of vertical pivot, can access good buffering and absorption for impeller with the shock and vibration of wind-force and vertical pivot clutch.
Triangle tower design provided by the invention has four big characteristics: one of which; It is the rock-steady structure of the simplest saving; Especially take with single wind wheel is the mounting type of increasing layer by layer of assembly; Than existing single tower blower fan, no matter structurally, still all demonstrate more brief, characteristic easily in (comprising debugging) and the maintenance installing; Its two, based on last design concept, the present invention is more suitable for the use of wind fields with a varied topography such as sea, mountain region; Its three, based on the first two some characteristic, the present invention is more flexible on wind field is promptly collected folk songs a little selection, can be on remote island, the villages and small towns, mountain area independently are provided with, decentralized power supply need not cable laying to be connected to the grid; Its four, this structure can also make all wind-force impellers all be in the frame type high-tension shielding cover of pylon of triangular-section, is provided with lightning arrester on the pylon top, thereby can protects all impellers and generator set not to be smashed by thunder and lightning.
Can move generating under the gentle breeze that the multi-stage impeller wind-driven generator that rotating shaft vertically is set provided by the invention is 2m/s at wind speed; When wind-force increases gradually; Wind-force impeller from the top downwards order breaks away from rotating shaft and combines, and rational in infrastructure, easily worn part is few, amount of maintenance is little; Be convenient to install, safeguard that can reach 20-50 working life.
Multi-stage impeller wind-driven generator provided by the invention, wherein said rotating shaft can also have following structural types except vertically being provided with as previously mentioned.
Of Fig. 5, on this vertical pivot 8, pass through the for example some pole axles 82 of bevel-gear sett 81 connections of driving mechanism, a said wind-force impeller 3 is set on each said pole axle 82, between this wind-force impeller 3 and the said pole axle 82 said centrifugal clutch is set.
At this moment, said generator set is arranged on the lower end of said vertical pivot 8.Bearing 21 is set on the vertical pivot is connected supporting with pylon.
In the said structure, the impeller blade length on the top pole axle 82 is less, and the impeller blade length on the bottom pole axle 82 is bigger.Other structure such as previous embodiment.
Said rotating shaft also can be horizontally disposed.
As shown in Figure 6, some wind-force impellers 3 are set on this horizontal rotating shaft 9, be provided with said centrifugal clutch between each said wind-force impeller 3 and the horizontal rotating shaft 9;
Connect generator set 5 (not shown)s at an end of this horizontal rotating shaft 9, horizontal rotating shaft and generator set between shaft part on a flexibility is set or elastic coupling flexible coupling 70 gets final product; One end of said horizontal rotating shaft is arranged on the support 100 of a setting, and perhaps, the two ends of this horizontal rotating shaft all are arranged on the support.Bearing 21 is set on the horizontal rotating shaft is connected supporting with pylon.
Said rotating shaft is horizontally disposed with; Also can be such structure: as shown in Figure 7; Some wind-force impellers 3 are set on this horizontal rotating shaft 9; Be provided with said centrifugal clutch between each said wind-force impeller and the horizontal rotating shaft, an end of said horizontal rotating shaft 9 through driving mechanism for example bevel-gear sett 81 be connected in the rotating shaft 8 that vertically is provided with, drive this rotating shaft that vertically is provided with and rotate.The other end of horizontal rotating shaft can be bearing on the support 200.
Said generator set 5 is arranged on the said lower end (not shown) that rotating shaft 8 vertically is set.Connect generator set and connect said driving mechanism such as bevel gear 81 between the rotating shaft of vertical setting on a flexibility or elastic coupling flexible coupling 70 are set.
The length of blade that is arranged on each wind-force impeller on the horizontal rotating shaft among aforesaid two embodiments can equate, also can be not wait.
Also has a kind of fabricated structure; As shown in Figure 8; Be that said rotating shaft is rotating shaft 8 and at least two horizontally disposed rotating shafts 9 that vertically are provided with; One end of said horizontally disposed rotating shaft 9 through driving mechanism for example bevel-gear sett 81 be connected with the rotating shaft 8 of said vertical setting; In every said horizontally disposed rotating shaft 9, said several wind-force impellers are set, are provided with said centrifugal clutch between each said wind-force impeller and the horizontal rotating shaft, this structure can be identical with earlier figures 6, structure shown in Figure 7.The other end of each horizontal rotating shaft is bearing on the support 200.Bearing 21 is set on the horizontal rotating shaft is connected supporting with pylon.Generator set 5 is connected the lower end of the rotating shaft 9 of vertical setting.Form matrix type wind power generator thus.Such structure can effectively increase the face of collecting folk songs.In this structure, the impeller blade length in the upper level rotating shaft 9 is less, and the impeller blade length in the lower horizontal rotating shaft 9 is bigger.Between each bevel gear of the rotating shaft that vertically is provided with and connect generator set and connect flexibility or elastic coupling flexible coupling 70 are set on the shaft part between the said driving mechanism.
Blade on the wind-force impeller of the present invention adopts metallic material; Adopt the manufacturing of cellular structure sandwich plate; Compare with glass steel blade in the existing technology and to have following advantage: 1, cellular structure sandwich plate system blade strength is high realizes design accuracy easily, and be difficult for aging, so the life-span is long; 2, the honeycomb leaf weight is light, and particularly generating efficiency is high under weak landscape condition, on the contrary glass fibre reinforced plastics.The blade of this wind-force impeller can design for cambered surface, and is different with existing plate blade project organization, need not on pylon, to be provided with wind deflector, and the wind comes from of different direction can be blown it.

Claims (16)

1. multi-stage impeller wind-driven generator; It is characterized in that: comprise impeller shaft assembly, pylon and generator set; Said impeller shaft assembly comprises a rotating shaft, some wind-force impellers, and the some said wind-force impeller that in said rotating shaft, is provided with vertically all is provided with centrifugal clutch between each said wind-force impeller and said rotating shaft; Make said wind-force impeller with said rotating shaft following two states arranged: the first is connected with said rotating shaft when a setting value is following at the rotating speed of wind-force impeller; Promote this rotating shaft and rotate, it two is that rotating speed wind-force impeller when a setting value is above at wind-force impeller breaks away from said rotating shaft and combines, and wind-force impeller dallies; Said impeller shaft assembly is set on this pylon, and said rotating shaft connects said generator set, and said rotating shaft is rotatably supported on the said pylon.
2. multi-stage impeller wind-driven generator according to claim 1 is characterized in that: said rotating shaft is the rotating shaft that vertically is provided with.
3. multi-stage impeller wind-driven generator according to claim 1 is characterized in that: said rotating shaft is horizontally disposed rotating shaft.
4. multi-stage impeller wind-driven generator according to claim 2; It is characterized in that: in this rotating shaft that vertically is provided with, some described wind-force impellers are set; Be provided with said centrifugal clutch between the rotating shaft of each said wind-force impeller and vertically setting, said generator set is arranged on the lower end of the rotating shaft of said vertical setting; The rotating shaft of said vertical setting is arranged on the said pylon rotationally, the some said wind-force impeller in the rotating shaft of said vertical setting, and from bottom to top, its length of blade reduces gradually.
5. multi-stage impeller wind-driven generator according to claim 2; It is characterized in that: in this rotating shaft that vertically is provided with, connect some pole axles through driving mechanism; On each said pole axle, a said wind-force impeller is set; Between this wind-force impeller and the said pole axle said centrifugal clutch is set, said generator set is arranged on the lower end of the rotating shaft of said vertical setting; The rotating shaft of said vertical setting is arranged on the said pylon rotationally, the some said wind-force impeller in the rotating shaft of said vertical setting, and from bottom to top, its length of blade reduces gradually.
6. multi-stage impeller wind-driven generator according to claim 3; It is characterized in that: some said wind-force impellers are set in this horizontally disposed rotating shaft; Be provided with said centrifugal clutch between each said wind-force impeller and the said horizontally disposed rotating shaft, connect said generator set or be connected through the generator set of transmission device below being arranged on this horizontally disposed rotating shaft at an end of this horizontally disposed rotating shaft; One end of said horizontally disposed rotating shaft is arranged on the said pylon of a setting, and perhaps, the two ends of this horizontally disposed rotating shaft are arranged on the said pylon, the some said wind-force impeller in the said horizontally disposed rotating shaft, and its length of blade equates or is unequal.
7. multi-stage impeller wind-driven generator according to claim 3; It is characterized in that: some said wind-force impellers are set in this horizontally disposed rotating shaft; Be provided with said centrifugal clutch between each said wind-force impeller and this horizontally disposed rotating shaft; Some said wind-force impeller in the said horizontally disposed rotating shaft, its length of blade equates or is unequal; Said horizontally disposed rotating shaft is connected in the vertical rotating shaft that is provided with through driving mechanism, drives this rotating shaft that vertically is provided with and rotates, and said generator set is arranged on the lower end of the said rotating shaft of vertical setting; Said horizontally disposed rotating shaft is arranged on the said pylon with the said rotating shaft that vertically is provided with rotationally.
8. multi-stage impeller wind-driven generator according to claim 7 is characterized in that: also comprise at least one other horizontally disposed rotating shaft, these horizontally disposed rotating shafts are connected with the said rotating shaft that vertically is provided with through driving mechanism; Some said wind-force impeller in the same said horizontally disposed rotating shaft, its length of blade equates or is unequal; The length of blade of the said wind-force impeller that is provided with in the said horizontally disposed rotating shaft of different heights setting up and down is that the length of blade of the wind-force impeller in the horizontally disposed rotating shaft of higher position is shorter.
9. multi-stage impeller wind-driven generator according to claim 1; It is characterized in that: the centrifugal clutch that is provided with between said wind-force impeller and the said rotating shaft; Comprise driving link, centrifugal body and driven member; Said driving link is wind-force impeller, and said driven member is the said rotating shaft that said wind-force impeller is set on it, and the corresponding position is respectively equipped with the combining structure that combines or break away from combination that is complementary on this rotating shaft and the centrifugal body; Said centrifugal body can move between said wind-force impeller and said rotating shaft and make said rotating shaft combine or break away from combination with said wind-force impeller, between said centrifugal body and said wind-force impeller, also is provided with an elasticity reset device; Perhaps,
Blade on the said wind-force impeller is the cellular structure sandwich plate; Perhaps,
The blade of said wind-force impeller is a cambered surface.
10. multi-stage impeller wind-driven generator according to claim 9; It is characterized in that: on the corresponding position of centrifugal body on said pylon and the said centrifugal clutch, also be provided with braking device, contact with this braking device after making rotating speed when said wind-force impeller surpass the setting rotating speed to be thrown out of and slow down its rotating speed.
11. multi-stage impeller wind-driven generator according to claim 9; It is characterized in that: the linkage structure between said centrifugal body and the said wind-force impeller is: said centrifugal body is a pendulum; It is connected firmly by a tup and a swing arm connecting rod and forms swing arm connecting rod one end and said wind-force impeller hinged securement.
12. multi-stage impeller wind-driven generator according to claim 9; It is characterized in that: said centrifugal clutch is such structure: the said centrifugal body in this centrifugal clutch comprises pendulum and Returnning spring; Said combining structure is a single direction ratchet in said rotating shaft; Be arranged on the corresponding said rotating shaft of said wind-force impeller on; Said pendulum comprise one which is provided with said ratchet on tup and swing arm connecting rod of moving tooth portion of ratchet engagement or out-of-gear said combining structure; One end of said swing arm connecting rod connects said tup, and its other end is hinged on the said wind-force impeller, between said rotating shaft and swing arm connecting rod, connects said Returnning spring.
13. multi-stage impeller wind-driven generator according to claim 11; It is characterized in that: on the corresponding position of centrifugal body on said pylon and the said centrifugal clutch, also be provided with braking device; It is; On the pylon of every layer of pylon laminate of correspondence, be centered around said pendulum outside and be provided with brake ring, be provided with friction plate on the outer end face of said tup and on the inwall of corresponding brake ring.
14. multi-stage impeller wind-driven generator according to claim 4 is characterized in that: the rotating shaft of said vertical setting is multistage segmentation structure, connects through flexibility or elastic coupling flexible coupling between every section shaft part, and a said wind-force impeller is set on each shaft part.
15. multi-stage impeller wind-driven generator according to claim 1 is characterized in that: the blade of each said wind-force impeller is all within the framework of said pylon; Perhaps,
Top at said pylon is provided with lightning arrester.
16. according to claim 2 or 15 described multi-stage impeller wind-driven generators, it is characterized in that: said pylon is that cross section is leg-of-mutton triangle pylon, and/or said pylon cross section reduces from bottom to top; , the multilayer bearing support is set from top to bottom on pylon, perforation is set on said bearing support supplies the vertically said rotating shaft setting of setting, between said rotating shaft that vertically is provided with and bearing support, bearing is set.
CN2009102107731A 2009-11-09 2009-11-09 Multi-stage impeller wind-driven generator Expired - Fee Related CN101852179B (en)

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CN102465842A (en) * 2011-05-18 2012-05-23 袁宏 Wind power generation equipment
CN102374131B (en) * 2011-09-28 2013-07-31 上海庆华蜂巢建材有限公司 Vertical axis wind turbine made of honeycomb boards
CN102606411A (en) * 2012-04-20 2012-07-25 李新民 Vertical shaft multi-state dual-blade bidirectional rotation wind driven power generation device and power generation control method thereof
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