CN102493914A - 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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- CN102493914A CN102493914A CN2011103886824A CN201110388682A CN102493914A CN 102493914 A CN102493914 A CN 102493914A CN 2011103886824 A CN2011103886824 A CN 2011103886824A CN 201110388682 A CN201110388682 A CN 201110388682A CN 102493914 A CN102493914 A CN 102493914A
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- wind
- lift
- rotating shaft
- wind wheel
- driven generator
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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
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 lift vertical shaft wind-driven generator, particularly suitable being installed on the lift vertical shaft wind-driven generator of self-starting poor-performing is used to improve the Security under startability and the 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 mainly is to utilize air stream to cross resistance that blade produces as driving force, and lift-type then is to utilize air stream to cross lift that blade produces as driving force.Resistance type wind-driven generator advantage is that starting torque is bigger, 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 big, and structure is simple relatively, and cost is lower, but this structure is when vertical axis aerogenerator brings into operation, and it is poor to start relatively under the difficulty situation that especially wind speed is little runnability.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, and meeting the requirements of rotating speed could normal operation.
At present, a kind of mechanical structure improved procedure commonly used is through lift-type and resistance-type vertical axis wind turbine stationary phase being combined, becoming a kind of resistance type wind-driven generator that rises.Because the resistance force type vertical shaft wind power generator has good startability, has passed through both combinations and has improved whole startability.Yet the tip-speed ratio of resistance type is less, and when reaching certain wind speed, the rotating speed of lift-type wind-driven generator is during greater than the rotating speed of resistance type wind-driven generator, and resistance type has just caused the resistance of complete machine, has reduced the efficient of blower fan.
Simultaneously,, under the wind speed condition with higher, can the windward side of wind wheel be reduced, mechanically reach the purpose of reduction of speed and protection mechanism through Yawing mechanism for horizontal axis wind-driven generator.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 the deficiency to above-mentioned existing technology; A kind of accessory fan of lift vertical shaft wind-driven generator is provided; The wind wheel radius variable; Be used to be installed in the top of lift vertical shaft wind-driven generator, make this wind-driven generator have good self-starting performance, under high wind speed, can also cushion and make the wind-driven generator reduction of speed.
For addressing the above problem; The technological scheme that the present invention adopts is: a kind of accessory fan of lift vertical shaft wind-driven generator; Comprise that a rotating shaft, a pair of wind wheel are connected support with two, it is characterized in that said rotating shaft is the T font rotating shaft that is connected with lift vertical shaft wind driven generator principal shaft coaxial line; Said connection support is that deflection angle is 120 ° ± 20 ° a turnover bar; Its at long end connects said wind wheel; One at short end connects a counterweight steel ball; The middle turning point place of said two connection supports is hinged with the two end part of the horizontal stub shafts of said T font rotating shaft respectively, makes said two wind wheels form turning radius changable type wind wheel, and this wind wheel is a cup-shaped resistance type wind wheel.
The two ends of the horizontal stub shafts of said T font rotating shaft are processed with groove, and the middle turning point place of said connection support is installed in the said groove through joint pin.
Spring block of said T font rotating shaft upper sliding sleeve, 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 at said spring block with being connected between the support.
The invention has the beneficial effects as follows: the accessory fan of resistance wind wheel turning radius changable type is adopted in (1), has improved the startability of lift vertical shaft wind-driven generator when hanging down wind speed, has 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 under action of centrifugal force and overlaps the position, has reduced the resistance that under the higher wind lift-type blower fan is normally moved, and the efficient (3) that has improved complete machine is when wind speed is excessive; The resistance type wind wheel is further deflection under centrifugal action; Wind wheel arrives opposite side respectively, has increased the resistance on the wind direction greatly, and the effect (4) of complete machine having been played buffer deceleration is when wind speed decreased; Auxiliary resistance type wind wheel returns to settling position, can play the effect that improves the gentle speed of spining of self-starting with change of wind velocity.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present invention.
Fig. 2 is the local enlarged diagram of spring block of the present invention.
Fig. 3 is the structural representation of the embodiment of the invention 1.
Fig. 4 is the structural representation of the embodiment of the invention 2.
Fig. 5 is the structural representation of the embodiment of the invention 3.
Embodiment
The preferred embodiments of the present invention accompanying drawings is following:
Embodiment one:
Referring to Fig. 1, the accessory fan of this lift vertical shaft wind-driven generator comprises that a rotating shaft, a pair of wind wheel are connected support 2 with two, it is characterized in that said rotating shaft is the T font rotating shaft 4 that is connected with lift vertical shaft wind driven generator principal shaft coaxial line; Said connection support 2 is that deflection angle is 120 ° ± 20 ° a turnover bar; Its at long end connects said wind wheel; One at short end connects a counterweight steel ball 3; The middle turning point place of said two connection supports 2 is hinged with the two end part of the horizontal stub shafts of said T font rotating shaft 4 respectively, makes said two wind wheels form turning radius changable type wind wheel 1, and this wind wheel 1 is a cup-shaped resistance type wind wheel.
Embodiment two:
Present embodiment and embodiment one are basic identical, and specialization is following:
The two ends of the horizontal stub shafts of said T font rotating shaft 4 are processed with groove, and the middle turning point place of said connection support 2 is installed in the said groove through joint pin 6.
Embodiment three:
Referring to Fig. 1 and Fig. 2, the accessory fan of this lift vertical shaft wind-driven generator comprises a pair of turning radius changable type wind wheel 1, connects support 2 and counterweight steel ball 3, T font rotating shaft 4, a spring block 5.Described a pair of turning radius changable type wind wheel 1 for hemisphere resistance type wind wheel, respectively be connected support 2 and counterweight steel ball 3 and be consolidated; Form an integral body; 2 one-tenth 120 ° of angles such as the connection support that two segment length do not wait; One at long end connects turning radius changable type wind wheel 1, and short end other end connects counterweight steel ball 3.Said turning radius changable type wind wheel 1, support 2 and counterweight steel ball 3 are whole to link to each other with T font rotating shaft 4 through 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, through T font rotating shaft 4 and the coaxial installation of lift-type wind-driven generator being placed the extreme higher position of generator, makes both co-rotation.When driven dimension, use center of mass theorem and confirm the center of gravity that this is whole through the weight of regulating the counterweight steel ball; When wind wheel 1 rotated, its position of centre of gravity changed with change of wind velocity, played the effect of the gentle speed of spining of self-starting.
Each operating mode during work is following:
As shown in Figure 3, at the beginning of wind wheel 1 did not start or starts, under action of gravity, counterweight steel ball 3 was through 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 big that wind speed round becomes, and leaves spring block 5 when turning radius changable type wind wheel 1, connection support 2 and 3 whole the making a concerted effort of counterweight steel ball are large enough to drive counterweight steel ball 3.It is low that the resistance type wind-driven generator utilizes self to start wind speed, and the big advantage of output torque drives the lift-type wind-driven generator and under gentle breeze, starts.
As shown in Figure 4; When wind speed reaches rated wind speed; Turning radius changable type wind wheel 1, connection support 2 and 3 whole the making a concerted effort of counterweight steel ball further increase the distance of its whole distance of centre of gravity center of rotation; Being turning radius changable type wind wheel 1 reduces apart from the distance (resistance wind wheel radius) of center of rotation gradually, overlaps until the center of two vane type wind wheels.At this moment; Extension spring 7 one ends are connected in spring block 5; The other end is fixed in the short end that connects support 2 and is elongated, and makes spring block 5 receive a power that makes progress, and under the effect of stage clip 8, keeps stable; The wind wheel center is stabilized under the vertical direction, has reduced the resistance that turning radius changable type wind wheel 1 brings as far as possible.
As shown in Figure 5; When wind speed exceeds survival wind speed,, promoted to be installed on the stage clip 8 of spring block 5 upper ends because turning radius changable type wind wheel 1, connection support 2 and 3 whole the making a concerted effort of counterweight steel ball further increase its whole distance of centre of gravity center of rotation; Spring block 5 is upwards slided along the major axis section of T font rotating shaft 4; Wind wheel oppositely rotates, and has increased the whole resistance of wind-driven generator greatly, makes its buffering reduction of speed.When wind speed decreased, reply at the reaction leeward wheel of stage clip 8, played a self-regulating effect.
Claims (3)
1. the accessory fan of a lift vertical shaft wind-driven generator comprises that a rotating shaft, a pair of wind wheel are connected support (2) with two, it is characterized in that said rotating shaft is the T font rotating shaft (4) that is connected with lift vertical shaft wind driven generator principal shaft coaxial line; Said connection support (2) is that deflection angle is 120 ° ± 20 ° a turnover bar; Its at long end connects said wind wheel; One at short end connects a counterweight steel ball (3); The middle turning point place of said two connection supports (2) is hinged with the two end part of the horizontal stub shafts of said T font rotating shaft (4) respectively, makes said two wind wheels form turning radius changable type wind wheel (1), and this wind wheel (1) is a cup-shaped resistance type wind wheel.
2. the accessory fan of lift vertical shaft wind-driven generator according to claim 1; The two ends that it is characterized in that the horizontal stub shafts of said T font rotating shaft (4) are processed with groove, and the middle turning point place of said connection support (2) is installed in the said groove through joint pin (6).
3. the accessory fan of lift vertical shaft wind-driven generator according to claim 1; It is characterized in that said T font rotating shaft (a 4) spring block of upper sliding sleeve (5), a stage clip of suit (8) between the horizontal stub shafts of this spring block (5) and T font rotating shaft (4); An extension spring (7) is installed at said spring block (5) with being connected between the support (2).
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 true CN102493914A (en) | 2012-06-13 |
| CN102493914B 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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| Country | Link |
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| CN (1) | CN102493914B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109951137A (en) * | 2019-04-02 | 2019-06-28 | 青岛理工大学 | A kind of marinescape compensating generator of energy self-shield |
| CN110374797A (en) * | 2019-08-13 | 2019-10-25 | 杭州德飙新能源科技有限公司 | A kind of self-interacting type blade of wind-driven generator |
| 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 (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918839A (en) * | 1974-09-20 | 1975-11-11 | Us Energy | Wind turbine |
| JP2007247577A (en) * | 2006-03-17 | 2007-09-27 | Toshiba Corp | Wind turbine device and wind power generation device using the same |
| CN201083183Y (en) * | 2007-10-10 | 2008-07-09 | 史廷宪 | Wind motor wind following vane angle rotating type pneumatic 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 |
-
2011
- 2011-11-30 CN CN 201110388682 patent/CN102493914B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918839A (en) * | 1974-09-20 | 1975-11-11 | Us Energy | Wind turbine |
| JP2007247577A (en) * | 2006-03-17 | 2007-09-27 | Toshiba Corp | Wind turbine device and wind power generation device using the same |
| CN201083183Y (en) * | 2007-10-10 | 2008-07-09 | 史廷宪 | Wind motor wind following vane angle rotating type pneumatic 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109951137A (en) * | 2019-04-02 | 2019-06-28 | 青岛理工大学 | A kind of marinescape compensating generator of energy self-shield |
| CN110374797A (en) * | 2019-08-13 | 2019-10-25 | 杭州德飙新能源科技有限公司 | A kind of self-interacting type blade of wind-driven generator |
| CN110513244A (en) * | 2019-09-25 | 2019-11-29 | 陈征 | A kind of adjustable wind wheel apparatus of omnidirection for wind-power electricity generation |
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| Publication number | Publication date |
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| CN102493914B (en) | 2013-12-25 |
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Granted publication date: 20131225 Termination date: 20171130 |