CN102493914B - Auxiliary fan of lift-type vertical axis wind generator - Google Patents
Auxiliary fan of lift-type vertical axis wind generator Download PDFInfo
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- CN102493914B CN102493914B CN 201110388682 CN201110388682A CN102493914B CN 102493914 B CN102493914 B CN 102493914B CN 201110388682 CN201110388682 CN 201110388682 CN 201110388682 A CN201110388682 A CN 201110388682A CN 102493914 B CN102493914 B CN 102493914B
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- wind wheel
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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 provides an auxiliary fan of a lift-type vertical axis wind generator, which comprises a rotary shaft, a pair of wind wheels and two connecting supports. The rotary shaft is a T-shaped rotary shaft coaxially connected with a spindle of the lift-type vertical axis wind generator. Each of the connecting supports is a turning rod with a turning angle of 120 degrees +/- 20 degrees, the long end of the turning rod is connected with the wind wheels, the short end of the turning rod is connected with a counter weight steel ball, the positions of middle turning points of the two connecting supports are respectively hinged to two ends of a short horizontal shaft of the T-shaped rotary shaft so as to enable the two wind wheels to form rotating radius variable type wind wheels which are cup-shaped resistance type wind wheels. The auxiliary fan of the lift-type vertical axis wind generator is suitable for being installed at the top end of the lift-type vertical axis wind generator, can enable the wind generator to have good self-starting performance, and can buffer the wind generator to decelerate at high wind speed.
Description
Technical field
The present invention relates to a kind of accessory fan of lifting-force type vertical-axis wind power generator, particularly on the suitable lifting-force type vertical-axis wind power generator that is arranged on the self-starting poor-performing, for improving the Security under startability and high wind speed.
Technical background
Vertical axis aerogenerator (VAWT vertical axis wind turbine), from structural principle, mainly is divided into lift-type and resistance type.The resistance force type vertical shaft wind power generator is mainly to utilize air to flow through resistance that blade produces as driving force, and lift-type is to utilize air to flow through lift that blade produces as driving force.Resistance type wind-driven generator advantage is that starting torque is larger, and startability is good, but its rotating speed is low, and the wind energy conversion system wind energy utilization is lower than horizontal axis wind-driven generator.The lift-type rotating speed is high, and rotatory inertia is large, and structure is relatively simple, and cost is lower, but this structure is when vertical axis aerogenerator brings into operation, and starts in the situation that more difficult especially wind speed is little runnability poor.Shape according to blade, lift-type can be divided into two kinds of prismatic blade and bent blades, and prismatic blade can pass through choose reasonable vane airfoil profile and established angle, obtains self-starting performance preferably, and bent blades must lean on other dynamic start, meeting the requirements of rotating speed could normal operation.
At present, a kind of mechanical structure improved procedure commonly used is by lift-type and resistance-type vertical axis wind turbine are fixedly combined, and becomes a kind of resistance type wind-driven generator that rises.Because the resistance force type vertical shaft wind power generator has good startability, passed through both combinations and improved whole startability.Yet the tip-speed ratio of resistance type is less, when reaching certain wind speed, when the rotating speed of lift-type wind-driven generator is greater than the rotating speed of resistance type wind-driven generator, resistance type has just caused the resistance of complete machine, has reduced the efficiency of blower fan.
Simultaneously, for horizontal axis wind-driven generator, in the situation that wind speed is higher, can the windward side of wind wheel be reduced by Yawing mechanism, mechanically reach the purpose of reduction of speed and protection mechanism.For vertical axis aerogenerator, can receive the wind comes from of any direction, when meeting strong wind, lacked the buffering reduction of speed and guaranteed safety.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned the deficiencies in the prior art, a kind of accessory fan of lifting-force type vertical-axis wind power generator is provided, the wind wheel radius variable, for being arranged on the top of lifting-force type vertical-axis wind power generator, make this wind-driven generator there is good self-starting performance, can also cushion under high wind speed and make the wind-driven generator reduction of speed.
For addressing the above problem, the technical solution used in the present invention is: a kind of accessory fan of lifting-force type vertical-axis wind power generator, comprise a rotating shaft, a pair of wind wheel and two connection brackets, it is characterized in that described rotating shaft is the T font rotating shaft be connected with lifting-force type vertical-axis wind power generator main shaft coaxial line; Described connection bracket is the turnover bar that deflection angle is 120 ° ± 20 °, one of its long end connects described wind wheel, one of short end connects a counterweight steel ball, the middle turning point place of described two connection brackets is hinged with the two end part of the horizontal stub shafts of described T font rotating shaft respectively, make described two wind wheels form turning radius changable type wind wheel, this wind wheel is cup-shaped resistance type wind wheel.
The two ends of the horizontal stub shafts of described T font rotating shaft are processed with groove, and the middle turning point place of described connection bracket is arranged in described groove by joint pin.
Spring block of described T font rotating shaft upper sliding sleeve, a stage clip of suit between the horizontal stub shafts of this spring block and the rotating shaft of T font; An extension spring is installed between described spring block and connection bracket.
The invention has the beneficial effects as follows: (1) adopts the accessory fan of resistance wind wheel turning radius changable type, improved the startability of lifting-force type vertical-axis wind power generator when low wind speed, improved the wind-powered electricity generation conversion efficiency, when adaptability stronger (2) reaches suitable tip speed ratio at lifting wind wheel, auxiliary resistance type wind wheel is adjusted to and overlaps position under the effect of centrifugal force, reduced under the higher wind the normal resistance moved of lift-type blower fan, improved efficiency (3) wind speed of complete machine when excessive, the resistance type wind wheel is further deflection under centrifugal action, wind wheel arrives respectively opposite side, greatly increased the resistance on the wind direction, complete machine has been played to the effect (4) of buffer deceleration when wind speed decreased, auxiliary resistance type wind wheel returns to settling position, can play and improve the gentle fast effect of spining of self-starting with the variation of wind speed.
The accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
The local enlarged diagram that Fig. 2 is spring block of the present invention.
The structural representation that Fig. 3 is the embodiment of the present invention 1.
The structural representation that Fig. 4 is the embodiment of the present invention 2.
The structural representation that Fig. 5 is the embodiment of the present invention 3.
Embodiment
The preferred embodiments of the present invention accompanying drawings is as follows:
Embodiment one:
Referring to Fig. 1, the accessory fan of this lifting-force type vertical-axis wind power generator, comprise a rotating shaft, a pair of wind wheel and two connection brackets 2, it is characterized in that described rotating shaft is the T font rotating shaft 4 be connected with lifting-force type vertical-axis wind power generator main shaft coaxial line; Described connection bracket 2 is turnover bars that deflection angle is 120 ° ± 20 °, one of its long end connects described wind wheel, one of short end connects a counterweight steel ball 3, the middle turning point place of described two connection brackets 2 is hinged with the two end part of the horizontal stub shafts of described T font rotating shaft 4 respectively, make described two wind wheels form turning radius changable type wind wheel 1, this wind wheel 1 is cup-shaped resistance type wind wheel.
Embodiment two:
The present embodiment and embodiment one are basic identical, and specialization is as follows:
The two ends of the horizontal stub shafts of described T font rotating shaft 4 are processed with groove, and the middle turning point place of described connection bracket 2 is arranged in described groove by joint pin 6.
Spring block 5 of described T font rotating shaft 4 upper sliding sleeve, a stage clip 8 of suit between the horizontal stub shafts of this spring block 5 and T font rotating shaft 4; An extension spring 7 is installed between described spring block 5 and connection bracket 2.
Embodiment three:
Referring to Fig. 1 and Fig. 2, the accessory fan of this lifting-force type vertical-axis wind power generator, comprise a pair of turning radius changable type wind wheel 1, connection bracket 2 and counterweight steel ball 3, the rotating shaft of T font 4, a spring block 5.Described a pair of turning radius changable type wind wheel 1 is hemisphere resistance type wind wheel, is consolidated with connection bracket 2 and counterweight steel ball 3 respectively, form an integral body, 2 one-tenth 120 ° of angles such as the connection bracket that two segment length do not wait, one of long end connects turning radius changable type wind wheel 1, and the short end other end connects counterweight steel ball 3.Described turning radius changable type wind wheel 1, support 2 and counterweight steel ball 3 integral body are connected with T font rotating shaft 4 by hinge 6.Described T font rotating shaft 4 is processed with a pair of groove at the horizontal stub shafts two ends, is convenient to the installation of hinge 6, by by the coaxial extreme higher position that is placed in generator of installing of T font rotating shaft 4 and lift-type wind-driven generator, both is rotated jointly.When driven dimension, use center of mass theorem and determine by the weight of regulating the counterweight steel ball center of gravity that this is whole; When wind wheel 1 rotates, its position of centre of gravity changes with the variation of wind speed, plays the gentle fast effect of spining of self-starting.
Each operating mode during work is as follows:
As shown in Figure 3, at the beginning of wind wheel 1 does not start or starts, under Action of Gravity Field, counterweight steel ball 3 is by the major axis section of the extension spring 7 contact T font rotating shafts 4 of spring block 5, and turning radius changable type wind wheel 1 is positioned at the radius biggest place.Along with the increase of wind speed, it is large that wind speed round becomes, when turning radius changable type wind wheel 1, connection bracket 2 and counterweight steel ball 3 integral body make a concerted effort be large enough to drive counterweight steel ball 3 and leave spring block 5.It is low that the resistance type wind-driven generator utilizes self to start wind speed, and the large advantage of output torque drives the lift-type wind-driven generator and starts under gentle breeze.
As shown in Figure 4, when wind speed reaches rated wind speed, the further increase of distance of making a concerted effort to make its whole distance of centre of gravity center of rotation of turning radius changable type wind wheel 1, connection bracket 2 and counterweight steel ball 3 integral body, being turning radius changable type wind wheel 1 reduces gradually apart from the distance (resistance wind wheel radius) of center of rotation, until the center superposition of two vane type wind wheels.Now, extension spring 7 one ends are connected in spring block 5, the other end is fixed in the short end of connection bracket 2 and is elongated, make spring block 5 be subject to the power made progress, under the effect of stage clip 8, keep stable, the wind wheel center is stabilized under vertical direction, has reduced as far as possible the resistance that turning radius changable type wind wheel 1 brings.
As shown in Figure 5, when wind speed exceeds survival wind speed, due to turning radius changable type wind wheel 1, connection bracket 2 and counterweight steel ball 3 integral body make a concerted effort its whole distance of centre of gravity center of rotation is further increased, promoted to be installed on the stage clip 8 of spring block 5 upper ends, make the major axis section upward sliding of spring block 5 along T font rotating shaft 4, wind wheel oppositely rotates, and has greatly increased the resistance of wind-driven generator integral body, makes its buffering reduction of speed.When wind speed decreased, at the reaction leeward wheel of stage clip 8, reply, played a self-regulating effect.
Claims (2)
1. the accessory fan of a lifting-force type vertical-axis wind power generator, comprise a rotating shaft, a pair of wind wheel and two connection brackets (2), it is characterized in that described rotating shaft is the T font rotating shaft (4) be connected with lifting-force type vertical-axis wind power generator main shaft coaxial line; Described connection bracket (2) is the turnover bar that deflection angle is 120 ° ± 20 °, one of its long end connects described wind wheel, one of short end connects a counterweight steel ball (3), the middle turning point place of described two connection brackets (2) is hinged with the two end part of the horizontal stub shafts of described T font rotating shaft (4) respectively, make described two wind wheels form turning radius changable type wind wheel (1), this wind wheel (1) is cup-shaped resistance type wind wheel; Described T font rotating shaft (a 4) spring block of upper sliding sleeve (5), a suit stage clip (8) between the horizontal stub shafts of this spring block (5) and T font rotating shaft (4); An extension spring (7) is installed between described spring block (5) and connection bracket (2).
2. the accessory fan of lifting-force type vertical-axis wind power generator according to claim 1, the two ends that it is characterized in that the horizontal stub shafts of described T font rotating shaft (4) are processed with groove, and the middle turning point place of described connection bracket (2) is arranged in described groove by joint pin (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110388682 CN102493914B (en) | 2011-11-30 | 2011-11-30 | Auxiliary fan of lift-type vertical axis wind generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110388682 CN102493914B (en) | 2011-11-30 | 2011-11-30 | Auxiliary fan of lift-type vertical axis wind generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102493914A CN102493914A (en) | 2012-06-13 |
| CN102493914B true CN102493914B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110388682 Expired - Fee Related CN102493914B (en) | 2011-11-30 | 2011-11-30 | Auxiliary fan of lift-type vertical axis wind generator |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109951137A (en) * | 2019-04-02 | 2019-06-28 | 青岛理工大学 | Self-protection offshore wind-light complementary power generation device |
| CN110374797B (en) * | 2019-08-13 | 2020-06-02 | 杭州德飙新能源科技有限公司 | Self-adjusting type wind driven generator blade |
| CN110513244A (en) * | 2019-09-25 | 2019-11-29 | 陈征 | A kind of adjustable wind wheel apparatus of omnidirection for wind-power electricity generation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918839A (en) * | 1974-09-20 | 1975-11-11 | Us Energy | Wind turbine |
| CN201083183Y (en) * | 2007-10-10 | 2008-07-09 | 史廷宪 | Wind driven generator wind following blade corner type wind driven structure |
| CN101265880A (en) * | 2008-04-30 | 2008-09-17 | 杨晶菁 | Cyclone resisting vertical shaft wind motor based on vane corner control |
| CN201593482U (en) * | 2010-01-29 | 2010-09-29 | 卢星辉 | Dual-purpose vertical-shaft micro wind power generation device for household and travel use |
| CN101892948A (en) * | 2010-07-19 | 2010-11-24 | 河海大学 | Vertical axis straight blade lifting wind wheel with speed-limiting device |
| CN201679635U (en) * | 2010-03-19 | 2010-12-22 | 胡敏 | Wind-driven generator started by independent blades |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007247577A (en) * | 2006-03-17 | 2007-09-27 | Toshiba Corp | Wind turbine device and wind power generation device using the same |
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2011
- 2011-11-30 CN CN 201110388682 patent/CN102493914B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918839A (en) * | 1974-09-20 | 1975-11-11 | Us Energy | Wind turbine |
| CN201083183Y (en) * | 2007-10-10 | 2008-07-09 | 史廷宪 | Wind driven generator wind following blade corner type wind driven structure |
| CN101265880A (en) * | 2008-04-30 | 2008-09-17 | 杨晶菁 | Cyclone resisting vertical shaft wind motor based on vane corner control |
| CN201593482U (en) * | 2010-01-29 | 2010-09-29 | 卢星辉 | Dual-purpose vertical-shaft micro wind power generation device for household and travel use |
| CN201679635U (en) * | 2010-03-19 | 2010-12-22 | 胡敏 | Wind-driven generator started by independent blades |
| CN101892948A (en) * | 2010-07-19 | 2010-11-24 | 河海大学 | Vertical axis straight blade lifting wind wheel with speed-limiting device |
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| CN102493914A (en) | 2012-06-13 |
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Granted publication date: 20131225 Termination date: 20171130 |