CN101749190A - Center fixed-supporting vertical axis wind turbine - Google Patents
Center fixed-supporting vertical axis wind turbine Download PDFInfo
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- CN101749190A CN101749190A CN200910262983A CN200910262983A CN101749190A CN 101749190 A CN101749190 A CN 101749190A CN 200910262983 A CN200910262983 A CN 200910262983A CN 200910262983 A CN200910262983 A CN 200910262983A CN 101749190 A CN101749190 A CN 101749190A
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- central shaft
- vertical axis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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Abstract
The invention discloses a center fixed-supporting vertical axis wind turbine, comprising a ground base, a central axis, a blade and a generator, and further comprising at least two positioning grooves, at least two positioning racks, an interlayer torque transmission mechanism and a small bearing or a pulley, wherein the central axis is vertically and fixedly mounted on the ground base, the positioning grooves are fixedly mounted at the lower part and the middle-upper part of the central axis, respectively, the positioning racks are mounted on corresponding positioning grooves respectively via the small bearing or the pulley, the interlayer torque transmission mechanism is fixedly connected between the positioning racks, the blade is mounted on the positioning rack at the middle-upper part of the central axis via a blade frame, a rotor of the generator is mounted on the positioning rack at the lower part of the central axis via a bracket, and a stator of the generator and a casing are sleeved on the rotor of the generator and are fixedly mounted on the ground base. The center fixed-supporting vertical axis wind turbine has the advantages of stable operation, small fluctuation, strong anti-typhoon performance, high utilization rate of wind power, simple structure, low cost, long service life, convenient installation and maintenance and the like, and is better suitable for being installed and used at locations where the wind direction is changeable and the wind changes at any time.
Description
Technical field
The present invention relates to a kind of wind-driven generator, particularly a kind of simple and reliable for structure, stable, working service is convenient, cost is low, efficient is high, the life-span is long, the multilayer blade of effective wind speed wide ranges, the fixed supported wind-driven generator of central shaft, belongs to wind power generation field.
Background technique
Wind energy is human the most cheap, the most convenient that utilizes the earliest, the most a kind of reproducible green energy resource of cleaning, compares with traditional energy, and wind-power electricity generation does not rely on fossil energy, does not have the fuel price risk, and cost of electricity-generating is stable, does not also have Environmental costs such as carbon emission.Therefore, wind-power electricity generation becomes the important component part of many national sustainable development strategies gradually, and development rapidly.Wind-driven generator is the capital equipment that utilizes wind energy, and it can be divided into horizontal-shaft wind turbine and vertical axis windmill two classes.The wind wheel of horizontal-shaft wind turbine is round a horizontal rotational shaft, and the plane of rotation of wind wheel is vertical with wind direction during work.The wind wheel of vertical axis windmill mainly contains and utilizes the resistance of air acting and utilize profile lift acting two big classes around a vertical shaft rotation.
At present, the wind-driven generator overwhelming majority of moving in the world is the horizontal axis generator, and its structure mainly is made up of wind wheel, low-speed shaft coupler, speed increaser, high speed coupling, generator, pylon, arrangements for speed regulation, device for regulating direction, break etc.Although it uses general, in structure and design, also there are some problems, mainly show the following aspects:
(1) wind energy utilization: according to the wind energy utilization of foline theoretical calculation vertical axis rotor, drawn the conclusion of utilization ratio not as horizontal axis, but wind direction is often to change in actual environment, the windward side of horizontal axis rotor can not be all the time facing the wind, this has just caused " windage loss is lost ", and then there is not this problem in vertical axis rotor.
(2) wind direction influence: vertical axis windmill can be accepted the wind comes from of any direction. do not need prerequisite makeing about (driftage) mechanism of horizontal-shaft wind turbine institute.Therefore, the structure of vertical axis windmill is simpler than horizontal-shaft wind turbine, and cost is lower.
(3) wind energy conversion system structural feature: the generator of horizontal axis all places tens meters high-altitude, and the generator of vertical shaft can be placed on the bottom or the ground of wind wheel, is convenient to installation and maintenance.And the blade of horizontal-shaft wind turbine is than the blade relative complex of vertical axis windmill, and processing cost is higher relatively, and the blade shape of vertical axis windmill is simple, easy processing, and cost is low.
(4) environmental issue: the influence that wind-power electricity generation operation produces environment mainly is to produce noise and to the influence of local ecotope.The tip-speed ratio of horizontal axis rotor generally about 5～8, will produce very big aerodynamic noise in such high speed lower blade cutting steam.The tip-speed ratio of vertical axis rotor is little many than horizontal axis then, and generally between 3～4.5, it is less to produce aerodynamic noise, to almost not influence of environment.
And present most vertical axis aerogenerator also exists certain problem:
(1) vertical axis aerogenerator all is the individual layer blade generally, and blade is longer, in rotary course, is bearing variation bigger, periodic positive negative load, and fatigue life is shorter;
(2) though utilize three cables to fix, adopt the individual layer blade because central shaft is reaching of rotation, it is bigger to pulse, and has lost the part wind energy, and the sassafras loss that rubs of mechanical part is big, the rate of fault height;
(3) the bigger space length of fixedly needs of cable has increased complexity, has particularly strengthened the difficulty of offshore construction.
Summary of the invention
The objective of the invention is in order to solve the problem that wind-driven generator faced in the above-mentioned prior art center fixation supporting vertical axis wind turbine that provide a kind of wind energy utilization height, cost is low, rotating speed is low, structure is simple relatively and stable, noise is low, easy to maintenance.
Center fixation supporting vertical axis wind turbine of the present invention, comprise the ground pedestal, central shaft, blade, generator, it is characterized in that also comprising at least 2 locating slots, at least 2 position shelfs, interlayer torsion pass mechanism, little bearing or pulley, described central shaft vertically is packed on the pedestal of ground, each locating slot is packed in the bottom of central shaft and the middle and upper part of central shaft respectively, each position shelf is installed on each self-corresponding locating slot through little bearing or pulley respectively, interlayer torsion pass mechanism is fixedly connected between each position shelf, the vanes vane frame is installed on the position shelf of central shaft middle and upper part, generator amature is installed in through support on the position shelf of central shaft bottom, and generator unit stator and casing are sleeved on the generator amature and are packed on the pedestal of ground.
Described blade is selected the multilayer blade for use, and upper and lower layer blade is in staggered distribution by average angle.
Described interlayer torsion pass mechanism selects sleeve type torsion pass mechanism or squirrel-cage shaped torsion pass mechanism or grid type torsion pass mechanism for use.
During work, central shaft maintains static, blade drives interlayer torsion pass mechanism by position shelf and rotates around the central shaft middle and upper part along locating slot through little bearing or pulley under the effect of wind energy, around the rotation of central shaft bottom, the position shelf that is installed in the bottom drives support and makes the rotor rotation of generator and generate electricity the position shelf that drives the bottom through interlayer torsion pass mechanism along locating slot.Center fixation supporting vertical axis wind turbine of the present invention is compared with the existing dynamic formula vertical axis aerogenerator of passing on, and obviously has the following advantages:
1. be fixed on ground owing to employing central shaft fixed bearing, multilayer blade, and with generator, can alleviate the burden of central shaft, the running middle machine body is stable, and it is little to pulse, and Anti-Typhoon ability is strong, and installation and maintenance are convenient.
2. owing to adopt the multilayer blade, the length of blade is shorter, has reduced the positive negative load of individual blade, warping resistance intensity height, and long service life, processing is simple, cost is low, and develops to the direction of high-power generator easily.
3. because pulsation of whole motor output torque and mains ripple are little, reduce the sassafras loss that rubs of mechanical part simultaneously, reduced energy loss and rate of fault, improved wind energy utilization.
4. owing to need not wind apparatus be more suitable for the place indefinite at wind direction, that wind-force changes at any time and install and use, can simplify airframe structure, improved the operational reliability of wind energy conversion system, and operating conditions be loose, can more effectively utilize the high speed wind energy.
Description of drawings
Accompanying drawing 1 is the structural representation of center fixation supporting vertical axis wind turbine of the present invention;
Accompanying drawing 2 is that A-A in the accompanying drawing 1 is to structural representation.
Embodiment
Referring to accompanying drawing 1 and accompanying drawing 2,1 among the figure is central shaft, the 2nd, and locating slot, the 3rd, little bearing or pulley, the 4th, blade, the 5th, vane frame, the 6th, interlayer torsion pass mechanism, the 7th, support, the 8th, generator amature, the 9th, generator unit stator, the 10th, casing, the 11st, ground pedestal, the 12nd, position shelf.
Center fixation supporting vertical axis wind turbine of the present invention, its structure comprises ground pedestal 11, central shaft 1, blade 4, generator, also comprise at least 2 locating slots 2, at least 2 position shelfs 12, interlayer torsion pass mechanism 6, little bearing or pulley 3, described central shaft 1 vertically is packed on the ground pedestal 11, each locating slot 2 is packed in the bottom of central shaft 1 and the middle and upper part of central shaft 1 respectively, each position shelf 12 is installed on each self-corresponding locating slot 2 through little bearing or pulley 3 respectively, interlayer torsion pass mechanism 6 is fixedly connected between each position shelf 12, blade 4 is installed on the position shelf 12 of central shaft 1 middle and upper part through vane frame 5, generator amature 8 is installed in through support 7 on the position shelf 12 of central shaft 1 bottom, and generator unit stator 9 and casing 10 are sleeved on the generator amature 8 and are packed on the ground pedestal 11.
Described blade 4 is selected the multilayer blade for use, and blade can adopt H type or Φ type or other shape, and upper and lower layer blade 4 is in staggered distribution by average angle, can make the operation of rotating mechanisms such as position shelf more stable.
Rotate simultaneously for upper and lower each position shelf is connected as a single entity, described interlayer torsion pass mechanism 6 selects sleeve type torsion pass mechanism or squirrel-cage shaped torsion pass mechanism or grid type torsion pass mechanism for use.
During work, central shaft 1 maintains static, blade 4 drives interlayer torsion pass mechanism 6 by position shelf 12 and rotates around central shaft 1 middle and upper part along locating slot 2 through little bearing or pulley 3 under the effect of wind energy, around the rotation of central shaft bottom, the position shelf 12 that is installed in the bottom drives supports 7 and makes rotor 8 rotations of generator and generate electricity the position shelf 12 that drives bottoms through interlayer torsion pass mechanism 6 along locating slot.
Claims (3)
1. center fixation supporting vertical axis wind turbine, comprise the ground pedestal, central shaft, blade, generator, it is characterized in that also comprising at least 2 locating slots, at least 2 position shelfs, interlayer torsion pass mechanism, little bearing or pulley, described central shaft vertically is packed on the pedestal of ground, each locating slot is packed in the bottom of central shaft and the middle and upper part of central shaft respectively, each position shelf is installed on each self-corresponding locating slot through little bearing or pulley respectively, interlayer torsion pass mechanism is fixedly connected between each position shelf, the vanes vane frame is installed on the position shelf of central shaft middle and upper part, generator amature is installed in through support on the position shelf of central shaft bottom, and generator unit stator and casing are sleeved on the generator amature and are packed on the pedestal of ground.
2. center fixation supporting vertical axis wind turbine as claimed in claim 1 is characterized in that described blade selects the multilayer blade for use, and upper and lower layer blade is in staggered distribution by average angle.
3. center fixation supporting vertical axis wind turbine as claimed in claim 1 or 2 is characterized in that described interlayer torsion pass mechanism selects sleeve type torsion pass mechanism or squirrel-cage shaped torsion pass mechanism or grid type torsion pass mechanism for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910262983A CN101749190A (en) | 2009-12-14 | 2009-12-14 | Center fixed-supporting vertical axis wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910262983A CN101749190A (en) | 2009-12-14 | 2009-12-14 | Center fixed-supporting vertical axis wind turbine |
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| Publication Number | Publication Date |
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| CN101749190A true CN101749190A (en) | 2010-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910262983A Pending CN101749190A (en) | 2009-12-14 | 2009-12-14 | Center fixed-supporting vertical axis wind turbine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110914531A (en) * | 2017-07-17 | 2020-03-24 | J·A·托雷西利亚·孔特雷拉斯 | System for optimizing rotors, transmissions and collection elements of vertical axis wind turbines |
-
2009
- 2009-12-14 CN CN200910262983A patent/CN101749190A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110914531A (en) * | 2017-07-17 | 2020-03-24 | J·A·托雷西利亚·孔特雷拉斯 | System for optimizing rotors, transmissions and collection elements of vertical axis wind turbines |
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Open date: 20100623 |