CN105041577A - Dish low-wind-speed wind driven generator - Google Patents
Dish low-wind-speed wind driven generator Download PDFInfo
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- CN105041577A CN105041577A CN201510501558.2A CN201510501558A CN105041577A CN 105041577 A CN105041577 A CN 105041577A CN 201510501558 A CN201510501558 A CN 201510501558A CN 105041577 A CN105041577 A CN 105041577A
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- wind
- impeller
- wheel
- dish
- crosswind
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses a dish-shaped low-wind-speed wind driven generator. The wind driven generator comprises a base and an upright pole, wherein an impeller is mounted at the upper end of the upright pole, and an output shaft of the impeller is connected with the wind driven generator; the impeller is formed by connecting a plurality of semi-circular blades into a dish shape; the inner ends of the blades are fixed to a central flow guiding block; the outer ends of the blades are fixed to a sealing ring; the flow guiding block is a conical body protruding forwards; an output shaft is arranged at the rear end of the flow guiding block; the output shaft is connected with the wind driven generator; a steering shaft is fixed under the base of the wind driven generator; the steering shaft is fixedly connected with a straight gear; two sides of the straight gear are respectively connected with one group of side wind-wheel steering device. The impeller adopted by the wind driven generator disclosed by the invention is a resistance type dish wind wheel. The noise of a resistance type wind machine during operation is far lower than that of a lift type wind machine; the blades are arranged, the wind driven generator obtains lower noise, and besides, the wind driven generator can be started under a low wind speed.
Description
Technical field
The present invention is wind-driven generator, is particularly applicable to the quiet dish-shaped wind-driven generator under low wind speed environments.
Background technique
Natural wind is the anti-peak-shaving capability of wind-power electricity generation that causes of variational distinguishing feature day and night, and while making wind energy industry high speed development, frequently occurring rations the power supply abandons wind phenomenon.In addition, due to uneven caused wind electricity digestion delayed of the planning of Wind Power Generation Industry in the past, and the pressure of the long distance power transmission technical elements therefore brought and rate for incorporation into the power network remain high, and these problems affect the sound development of China's Wind Power Generation Industry all dearly.
Distributed small-sized wind power generator, as solution wind-powered electricity generation networking difficulty, abandons high, the unstable means of wind rate, by increasing study and utilization.Distributed wind-power generator all has sizable advantage in Security, reliability, Economy and widely applicable property.And in the development of nearly 2 years, the exploitation of Regional Dispersion wind-powered electricity generation of not rationing the power supply becomes bright spot gradually.
Wind-driven generator can be divided into resistance type and lift-type two kinds according to principle, can be divided into again horizontal axis and vertical shaft two kinds according to main shaft and ground angulation.Affect by traditional Bates theory, people wish to obtain higher wind energy utilization by improving tip-speed ratio, and lift-type wind energy conversion system has agreed with this demand well, therefore, with current development trend, small-sized wind power generator is based on horizontal axis Three-blade lift-type, and meanwhile, vertical shaft lift-type also becomes new hot topic gradually.Undeniable, lift-type wind-driven generator has its advantage in wind energy utilization, but as the main distributed energy utilized in city and relevant area, noise problem becomes the key limiting its development, and traditional small-sized wind power generator involves great expense, not easily start, etc. these problems impel people to be optimized conventional small wind-driven generator, even to post the small-sized wind power generator being contemplated for exploitation new model.
The improvement project of existing wind-driven generator, is still confined on the basis of original lift-type wind-driven generator, improve wind energy utilization and reduce threshold wind velocity by the method installed additional or reequip.Small-sized efficient wind-driven generator as adjustable in a kind of wind wheel position in wind-collection cover (be the Chinese patent of 201410093613.4 see application number), it is made up of wind-collection cover, wind wheel, one transmission shaft, rotor position regulating device, cabin, tail vane, thrust slide bearing and tower bar, wind wheel is arranged in wind-collection cover, wind wheel is slidably located on the first transmission shaft, drives wind wheel to move left and right by rotor position regulating device.When wind wheel is positioned at wind-collection cover minimum flow-passing surface, wind wheel threshold wind velocity can reduce by more than one times.When natural wind speed changes, by wind wheel position adjustment in the wind-collection cover becoming flow section, wind wheel can work for a long time near rated wind speed, the starting efficiency of Wind wheel paddle is high, the output power of generator can long-time stable near rated power, thus obtain higher generating efficiency.
And for example a kind of vertical axis windmill (be the Chinese patent of 201410055338.7 see application number) of frontal area adjustable, it comprises main shaft and blade, and scissors type mechanism, slide rail, rope sheave.Servo retracting motor and rope.Servo retracting motor is coaxially arranged on spindle top, scissors type mechanism is arranged on main shaft, the output shaft fixed connection of rope sheave and servo retracting motor, the direction of winding of two ropes is identical, the other end and the blade rotor of rope are connected, the center of rotation consolidation of one section, blade or middle part and scissors type mechanism, the blade the other end coordinates with slide rail, and but blade can move along slide rail cannot rotate around own torque.This wind energy conversion system adopts blade fixed pitch to install, and the size according to wind speed controls wind wheel radius size, thus realizes the startability raising of vertical axis windmill under different wind speed.Improve the mechanical property of vertical axis windmill under harsher wind conditions simultaneously, even can avoid brake and vehicle stop state, the operating range of the wind energy conversion system greatly improved.
In addition all multi-methods such as combined wind turbine technology are also had, but the behind that these methods improve at wind energy utilization, and what bring is the complicated of structure, the increase of cost, and there is no the noise that reduction even increases.
Summary of the invention
For solving the deficiency that prior art wind-driven generator structure is complicated, cost is high, noise is large, dish-like low wind speed wind power generator being provided, this electric generator structure is simple, cost is low, efficiency is high, noise is little.
For achieving the above object, the present invention is by the following technical solutions:
Dish-like low wind speed wind power generator, the vertical rod comprising base and be connected with base, impeller is arranged on vertical rod upper end, and impeller output shaft is connected with generator;
Impeller connects into dish by some semicircle blades are radial, and blade is inner to be fixed with center baffle, and blade outer end and a seal are fixed, and baffle is the cone of a lordosis, and baffle rear end is provided with output shaft, and output shaft is connected with generator;
Steering shaft is fixed with below generator base, steering shaft is fixedly connected with a spur gear, the both sides of spur gear are taken turns device for regulating direction with one group of crosswind respectively and are connected, often organize crosswind wheel device for regulating direction and comprise the tuning spur gear engaged with spur gear, cone gear is fixed with below the transmission shaft of tuning spur gear, cone gear engages with a horizontal cone gear, and the rotatingshaft of horizontal cone gear is taken turns with crosswind and is fixedly connected with; Spur gear, the cone gear group of crosswind wheel device for regulating direction are placed in vertical rod, and the transmission shaft of spur gear passes the through hole of vertical rod, and crosswind wheel is installed on outside vertical rod.
Above-mentioned dish-like low wind speed wind power generator, seal section is skewed relative to wheel rotation axle.
Above-mentioned dish-like low wind speed wind power generator, impeller is provided with stiffening ring between seal and baffle, and the section of stiffening ring is skewed relative to wheel rotation axle.
Above-mentioned dish-like low wind speed wind power generator, vertical rod is provided with hinge.
Above-mentioned dish-like low wind speed wind power generator, two groups of crosswind wheel device for regulating direction, wherein one group of cone gear be fixed on below spur gear is arranged on below crosswind wheel shaft, and another group is fixed on the top of the cone gear installation side wind wheel rotatingshaft below spur gear.
Impeller of the present invention is resistance type dish wind wheel.Operationally noise is far below lift-type wind energy conversion system for shaft resistance type windmill, and multiple-blade design makes it more also make it just can start under very low wind speed while low noise obtaining.
Adopt semicircle blade can obtain maximum resistance coefficient, meanwhile, blade radially reverses layout, can reduce drag losses; Whole impeller windward side and Vertical direction angled, poly-wind action can be played, maximum using incoming flow wind-force.
Blade end is weldingly fixed on the baffle of center, and this design can reduce wheel hub loss; Meanwhile, vaned blade tip is welded in impeller outer seal, and seal is external diffusion shape, can reduce the blade tip wind energy loss of whole impeller, whole wind wheel can be made so farthest to utilize wind energy.
In the middle part of impeller, through the same eyelet stiffening ring in external diffusion shape, structural reinforcing is carried out to impeller, make it run more stable.
Due to the design of semicircle blade, diffused seal and stiffening ring, effectively can reduce noise, improve the utilization ratio of wind energy.
Whole impeller output shaft is connected with generator system, and generator system mainly comprises generator, inverter, control system.
When improper to wind, because impeller lateral force is comparatively large, so the yaw system of wind-driven generator adopts crosswind wheel device for regulating direction.Crosswind wheel is low speed wind wheel, and symmetry is arranged on wind energy conversion system vertical rod both sides, is connected with impeller by gear train.When wind direction depart from main air wheel several angle after, wind wheel windward side, both sides increase, start to relatively rotate, thus drive swirl gear rotate, make impeller turn to maximum come flow path direction; After impeller aligns flow path direction, crosswind wheel windward side becomes minimum, and crosswind wheel stops operating, and adjusted device and out of service, completes tuning.
And crosswind wheel device for regulating direction is arranged on vertical rod both sides, is not arranged on generator both sides as tradition, optimizes the space layout of wind energy conversion system, meet the design feature of small-sized wind power generator exquisiteness.
Traditional swirl gear adopts tail vane to carry out tuning to wind usually, and usually adopt actuating motor tuning, so need to install wind direction and wind velocity real-time monitoring system additional, and need size control system to carry out reception and the transmission of electrical signal, this can bring very high cost.
In sum, the present invention takes turns adjusted device as major design main points using resistance type dish wind wheel structure and crosswind, be aided with microgenerator system, Combination Design completes a kind of quiet dish-shaped wind-driven generator, the simple exquisiteness of structure, light weight valency are low, while maximal efficiency utilizes wind energy, obtain the noise far below existing main flow wind energy conversion system, can be arranged on daily production and the life occasion of the masses, the development for distributed wind-power generator machine provides new solution.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the present invention's integrally-built side direction structural representation view.
Fig. 3 is impeller forward structure schematic diagram of the present invention.
Fig. 4 be impeller cross-sectional side of the present invention and with generator linkage structure schematic diagram.
Fig. 5 is that crosswind rotation of the present invention is to apparatus structure schematic diagram.
Fig. 6 is impeller semi-circular cross-section sectional structure schematic diagram of the present invention.
Fig. 7 is hinge working state structure schematic diagram of the present invention.
Fig. 8 be hinge of the present invention turnover for keeping in repair time structural representation.
Be labeled as in figure: 1 impeller, 11 seal, 12 blades, 13 stiffening rings, the baffle of 14 impeller central, the output shaft of 15 impellers, 2 generators, rotatingshaft below 21 generator bases, 22 spur gears fixing with generator base rotated down axle, 3 vertical rods, epimere above 31 vertical rod positions and hinge, hypomere below 32 vertical rod positions and hinge, the base of 33 vertical rods, 4 crosswind wheels, the pedestal of the dish-shaped wind-driven generator of 5 installation, 6 hinges, the tuning spur gear of 7 crosswind wheel device for regulating direction, the transmission shaft of 71 crosswind wheel device for regulating direction spur gears, 72 cone gears be fixedly connected with crosswind wheel shaft, 73 are arranged on Spur Gear Driving shaft end is positioned at cone gear above crosswind wheel shaft, 74 are arranged on Spur Gear Driving shaft end is positioned at cone gear below crosswind wheel shaft, the transmission shaft of 75 crosswind wheels, 76 crosswind wheels, 8 maintenance support bars.
Embodiment
With reference to accompanying drawing, dish-like low wind speed wind power generator, the vertical rod 3 comprising base 33 and be connected with base, vertical rod is provided with hinge 6, and impeller is arranged on vertical rod upper end, and impeller output shaft is connected with generator;
Impeller connects into dish by 30 semicircle blades 12 are radial, and blade is inner to be fixed with center baffle 14, and blade outer end is fixing with a seal 11, and seal section is skewed relative to wheel rotation axle, and inclination angle theta 1 is 45 degree.Baffle 14 is the cone of a lordosis, and baffle rear end is provided with output shaft 15, and output shaft is connected with generator 2; Impeller is provided with stiffening ring 13 between seal and baffle, and the section of stiffening ring is skewed relative to wheel rotation axle, and inclination angle theta 2 is 45 degree.Wind wheel entirety, in horn-like, can play good wind gathering effect.Seal simultaneously, stiffening ring and center flow guide device also serve the effect reducing windage loss and aerodynamic noise.
Impeller adopts aluminum alloy material, and while guarantee architecture quality, what also make whole impeller become is slim and graceful, in the stability and low cruise of system advantageously, especially can work at low wind speeds.
Steering shaft 21 is fixed with below generator base, steering shaft is fixedly connected with a spur gear 22, the both sides of spur gear are taken turns device for regulating direction with one group of crosswind respectively and are connected, often organize crosswind wheel device for regulating direction and comprise the tuning spur gear 7 engaged with spur gear, cone gear is fixed with below the transmission shaft 71 of tuning spur gear, cone gear engages with a horizontal cone gear 72, and rotatingshaft 75 and the crosswind of horizontal cone gear are taken turns 76 and be fixedly connected with.The spur gear of crosswind wheel device for regulating direction, the transmission shaft of spur gear, cone gear group are placed in vertical rod, and crosswind wheel is installed on outside vertical rod.Crosswind wheel shaft is arranged on 2/3rds At The Heights of vertical rod.
Two groups of crosswind wheel device for regulating direction, wherein one group of cone gear 74 be fixed on below spur gear is arranged on below crosswind wheel shaft, and another group is fixed on the top of the cone gear 73 installation side wind wheel rotatingshaft below spur gear.To improve the space availability ratio of vertical rod inside, make structure more compact.
Hinge structure in vertical rod, turns over when tearing open and is convenient to realize the maintenance to windward structure.
The working principle of crosswind wheel device for regulating direction utilizes two groups of symmetrical crosswind wheels to load steering force to the steering shaft of generator base by the engagement of spur gear in the same way, make after wind direction departs from main air wheel several angle, wind wheel windward side, both sides increases, start to relatively rotate, thus the spur gear of drive electrical generators rotates, namely generator and impeller rotate simultaneously, make from side impeller turn to maximum come flow path direction; After impeller aligns flow path direction, crosswind wheel windward side becomes minimum, and crosswind wheel stops operating, and device for regulating direction and out of service, completes tuning.
It should be noted that, the crosswind wheel being distributed in both sides is low speed wind wheel, be connected with turbo dynamo by gear, when wind direction departs from after main air takes turns an angle, crosswind wheel windward side increases, start to rotate, the crosswind wheel of both sides turns to identical, because left and right tooth cone gear mounting type is different, makes longitudinal tooth cone gear can rotating in same direction, thus drive the synergic rotation in the same way of straight toothed spur gear, the common rotation promoting straight toothed spur gear.
Claims (5)
1. dish-like low wind speed wind power generator, the vertical rod comprising base and be connected with base, impeller is arranged on vertical rod upper end, and impeller output shaft is connected with generator; It is characterized in that:
Impeller connects into dish by some semicircle blades are radial, and blade is inner to be fixed with center baffle, and blade outer end and a seal are fixed, and baffle is the cone of a lordosis, and baffle rear end is provided with output shaft, and output shaft is connected with generator;
Steering shaft is fixed with below generator base, steering shaft is fixedly connected with a spur gear, the both sides of spur gear are taken turns device for regulating direction with one group of crosswind respectively and are connected, often organize crosswind wheel device for regulating direction and comprise the tuning spur gear engaged with spur gear, cone gear is fixed with below the transmission shaft of tuning spur gear, cone gear engages with a horizontal cone gear, and the rotatingshaft of horizontal cone gear is taken turns with crosswind and is fixedly connected with; Spur gear, the cone gear group of crosswind wheel device for regulating direction are placed in vertical rod, and the transmission shaft of spur gear passes the through hole of vertical rod, and crosswind wheel is installed on outside vertical rod.
2. dish-like low wind speed wind power generator as claimed in claim 1, seal section is skewed relative to wheel rotation axle.
3. dish-like low wind speed wind power generator as claimed in claim 1, impeller is provided with stiffening ring between seal and baffle, and the section of stiffening ring is skewed relative to wheel rotation axle.
4. dish-like low wind speed wind power generator as claimed in claim 1, vertical rod is provided with hinge.
5. dish-like low wind speed wind power generator as claimed in claim 1, two groups of crosswind wheel device for regulating direction, wherein one group of cone gear be fixed on below spur gear is arranged on below crosswind wheel shaft, and another group is fixed on the top of the cone gear installation side wind wheel rotatingshaft below spur gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501558.2A CN105041577A (en) | 2015-08-17 | 2015-08-17 | Dish low-wind-speed wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501558.2A CN105041577A (en) | 2015-08-17 | 2015-08-17 | Dish low-wind-speed wind driven generator |
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| Publication Number | Publication Date |
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| CN105041577A true CN105041577A (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510501558.2A Pending CN105041577A (en) | 2015-08-17 | 2015-08-17 | Dish low-wind-speed wind driven generator |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4330714A (en) * | 1980-06-26 | 1982-05-18 | Smith Otto J M | Wind turbine system |
| CN2166248Y (en) * | 1992-10-06 | 1994-05-25 | 陈治衡 | Folding lift tower for wind-driven generator |
| CN2656660Y (en) * | 2003-08-28 | 2004-11-17 | 张绍辉 | Wind wheel |
| CN101178052A (en) * | 2007-12-17 | 2008-05-14 | 丁雄 | Wind turbine automatic yaw speed-regulation arrangement |
| CN201250765Y (en) * | 2008-08-06 | 2009-06-03 | 青岛安华新能源开发有限公司 | Assembly type wind generating set |
| CN203867776U (en) * | 2014-05-27 | 2014-10-08 | 李志海 | Horizontal shaft generator blade |
| CN104712495A (en) * | 2014-08-27 | 2015-06-17 | 刘荣甫 | Blade of mutually stable structure and wind power generator assembly with blades |
| CN204827803U (en) * | 2015-08-17 | 2015-12-02 | 浙江工业大学 | Disk -type hangs down wind speed aerogenerator |
-
2015
- 2015-08-17 CN CN201510501558.2A patent/CN105041577A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4330714A (en) * | 1980-06-26 | 1982-05-18 | Smith Otto J M | Wind turbine system |
| CN2166248Y (en) * | 1992-10-06 | 1994-05-25 | 陈治衡 | Folding lift tower for wind-driven generator |
| CN2656660Y (en) * | 2003-08-28 | 2004-11-17 | 张绍辉 | Wind wheel |
| CN101178052A (en) * | 2007-12-17 | 2008-05-14 | 丁雄 | Wind turbine automatic yaw speed-regulation arrangement |
| CN201250765Y (en) * | 2008-08-06 | 2009-06-03 | 青岛安华新能源开发有限公司 | Assembly type wind generating set |
| CN203867776U (en) * | 2014-05-27 | 2014-10-08 | 李志海 | Horizontal shaft generator blade |
| CN104712495A (en) * | 2014-08-27 | 2015-06-17 | 刘荣甫 | Blade of mutually stable structure and wind power generator assembly with blades |
| CN204827803U (en) * | 2015-08-17 | 2015-12-02 | 浙江工业大学 | Disk -type hangs down wind speed aerogenerator |
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Application publication date: 20151111 |
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| RJ01 | Rejection of invention patent application after publication |