CN105257457A - Generating device for collecting fluid kinetic energy through oscillating airfoil swing-torsion coupled motion - Google Patents
Generating device for collecting fluid kinetic energy through oscillating airfoil swing-torsion coupled motion Download PDFInfo
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- CN105257457A CN105257457A CN201510742315.8A CN201510742315A CN105257457A CN 105257457 A CN105257457 A CN 105257457A CN 201510742315 A CN201510742315 A CN 201510742315A CN 105257457 A CN105257457 A CN 105257457A
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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
- Y02E10/20—Hydro energy
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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
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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
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Abstract
The invention discloses a generating device for collecting fluid kinetic energy through oscillating airfoil swing-torsion coupled motion. The generating device comprises a horizontal shaft and a vertical shaft which are perpendicular and are fixedly connected with each other. The end face of the free end of the vertical shaft is provided with a blade. The blade and the vertical shaft can do oscillating motion around the horizontal shaft, and the blade can do twisting motion around the axis of the vertical shaft. The two ends of the horizontal shaft are provided with the first end and the second end respectively. The first end is fixed in the peripheral direction and in the radial direction and can move in the axial direction along the horizontal shaft, and the second end is used for being connected with a power device. Through the generating device for collecting fluid kinetic energy through the oscillating airfoil swing-torsion coupled motion, the device is similar to wings of dragonflies, and no extra device for converting translational motion into rotation required by an electric generator is needed; and airfoil rotating energy is provided directly from energy of swing motion, and no extra power device or control device is needed.
Description
Technical field:
The present invention relates to a kind of electricity generating device, in particular to wind-force or hydroelectric installation, particularly relate to a kind of electricity generating device utilizing the waving of Oscillating Airfoil-twisted coupling motion pick fluid dynamic energy.
Background technique:
Along with population growth, economic growth and social progress, the demand of people to the energy, particularly clean energy resource is growing.The generated energy of tradition water power plant and blower fan increases year by year, but it also receives publicity day by day on the impact of environment.Such as, water power plant ecological and the local impact of landforms, the noise pollution of large fan and impact on migratory bird moving thereof on upstream and downstream.In this context, traditional water turbine and blower fan and to substitute or additional project is obtained for development.Wherein, Oscillating Airfoil energy-absorbing receives the concern of educational circles in recent years gradually, and has carried out comprehensive research.Compared with conventional fan, Oscillating Airfoil energy absorption device possibility structure is simpler, construction cost is lower, also more friendly to environment; Application area is also wider, the long and narrow fluid masses such as such as river, seashore, valley; In addition, academic research shows, reasonably organizes the energy absorbing efficiency that the motion of Oscillating Airfoil can reach close with large fan.
Existing concussion aerofoil profile energy absorber is perpendicular to coming based on translation on flow path direction, and this device needs the degrees of freedom in two sections of limit blade of blade, thus causes that mechanism is more complicated, adaptability is also poor; The power of existing apparatus blade rotation comes from motor, means that the power plant that needs are extra and control mechanism realize blade rotation, thus reduces efficiency, adds cost.Based on this, the present invention proposes a kind of perpendicular on flow direction to rotate, and the power of blade rotation is directed to the novel energy absorption device of blade oscillating motion.
Summary of the invention:
The object of the present invention is to provide a kind of electricity generating device utilizing the waving of Oscillating Airfoil-twisted coupling motion pick fluid dynamic energy.
For achieving the above object, the present invention adopts following technological scheme to be achieved:
Utilize the electricity generating device of the waving of Oscillating Airfoil-twisted coupling motion pick fluid dynamic energy, comprise mutually vertical and the horizontal axis be fixedly connected with and vertical shaft, the free end end face of vertical shaft is provided with blade, and blade and vertical shaft can do oscillating motion around horizontal axis, blade can do twist motion around the axle center of vertical shaft simultaneously; The two ends of horizontal axis are respectively first end and the second end, and circumference and the radial direction of first end are fixed, and can along the axial motion of horizontal axis, and the second end is used for being connected with power plant.
The present invention further improves and is, power plant are gearbox or generator.
The present invention further improves and is, the free end end face of vertical shaft is provided with platform, and blade is arranged on the platform.
The present invention further improves and is, the platform of blade both sides is symmetrically arranged with two magnetic confinement devices for limit blade windup-degree, and two magnetic confinement devices come the both sides of flow path direction near blade.
The present invention further improves and is, horizontal axis is also installed with gear, with tooth bar and the oil hydraulic cylinder of gears meshing, first piston and the second piston is provided with in this oil hydraulic cylinder, tooth bar moves along a straight line for driving the first piston in oil hydraulic cylinder and the second piston, the centre of oil hydraulic cylinder offers first mouth of pipe and second mouth of pipe, the two ends of oil hydraulic cylinder offer the 3rd mouth of pipe and the 4th mouth of pipe respectively, be connected by pipeline between first mouth of pipe and second mouth of pipe, 3rd mouth of pipe is all connected with a hydraulic push rod by flexible pipe with the 4th mouth of pipe, two hydraulic push rods are fixed on platform, twist motion is done for promoting blade.
The present invention further improves and is, two hydraulic push rods are positioned at the both sides carrying out flow path direction near blade.
The present invention further improves and is, is also provided with spring between first end and horizontal axis.
Relative to prior art, the present invention has following advantage:
The electricity generating device utilizing the waving of Oscillating Airfoil-twisted coupling motion pick fluid dynamic energy provided by the invention, this device and dragonfly wing similar, by the setting of horizontal axis and vertical shaft, translation is converted into the rotation required by generator without the need to unnecessary device; The energy of blade rotation is directed to the energy of oscillating motion.
Further, the present invention coordinates by the transmission of power of oscillating motion to hydraulic mechanism (Fig. 3) by gear rack, is controlled the rotation of blade, without the need to other power plant and control mechanism by hydraulic mechanism; Oil hydraulic cylinder arranges pipeline, thus the mouth of pipe and between form loop, ensure that hydraulic actuator promotes blade quick rotation waving near maximum amplification, energy absorbing efficiency be improved; Make this device can adapt to different incoming flow operating modes by the rigidity of Regulation spring and piston and spacing; Spring makes blade under static state keep vertical, and magnetic confinement device ensures blade and carry out flow path direction to remain an angle of attack, and this device just can realize self-starting without the need to extra power.
Accompanying drawing illustrates:
Fig. 1 is general illustration of the present invention, wherein Fig. 1 (b) enlarged view that is Fig. 1 (a).
Fig. 2 is blade movement schematic diagram of the present invention, and wherein Fig. 2 (a) is phase diagram during right lateral journey, phase diagram during Fig. 2 (b) left lateral journey.
Fig. 3 is hydraulic mechanism working principle of the present invention.
In figure: 1 is horizontal axis, 2 is vertical shaft, and 3 is blade, and 4 is first end, 5 is the second end, and 6 is bearing, and 7 is spring, and 8 is gear, 9 is tooth bar, and 10 is oil hydraulic cylinder, and 11 is flexible pipe, and 12 is platform, 13 is hydraulic push rod, and 14 is magnetic confinement device, and 16 for carrying out flow path direction, 17 is the moving direction of blade and platform, and 18 is pipeline, and 19 is first piston, 20 is the second piston, and 21 is first mouth of pipe, and 22 is second mouth of pipe.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1, the technological scheme taked in figure is as follows for the general illustration of electricity generating device provided by the invention:
Horizontal axis 1 is fixedly connected with vertical shaft 2 and mutually vertical, and blade 3 and vertical shaft 2 can do oscillating motion around horizontal axis 1; Meanwhile, blade 3 can do twist motion around vertical shaft 2.Horizontal axis 1 has end 4 and end 5, and its medial end portions 4 circumference and radial direction are fixed, and can move vertically, end 5 is connected with the mechanism such as gearbox and generator.Blade 3 swings around horizontal axis 1 under the driving of incoming flow, now the kinetic energy of fluid converts the mechanical energy of Fig. 1 device to, wherein a part of mechanical energy is exported by end 5 is electric energy, and a part of mechanical energy is used for drive vane 3 and reverses around vertical shaft 2, and some mechanical energy storage is in spring 7.Be stored in potential energy in spring 7 for recovering blade 3 position, the final mechanical energy transforming electric energy and drive vane 3 and reverse.All in all, the energy major part collected from fluid changes into electric energy and is exported by end 5, and sub-fraction is used for drive vane 3 and reverses around vertical shaft 2.
6 is two bearings, for fixed level axle 1.Spring 7 is fixedly connected with horizontal axis 1, for keeping equilibrium position when static, controls the amplitude of oscillating motion during motion.Gear 8 is fixedly connected with horizontal axis 1, and tooth bar 9 and gear 8 engage each other, for the circumferential movement of gear 8 is converted to straight line motion.Piston in oil hydraulic cylinder 10 moves back and forth under the drive of gear 9.Flexible pipe 11 is connected with hydraulic push rod 13 with oil hydraulic cylinder 10.Hydraulic push rod 13 is fixed on platform 12, does twist motion for promoting blade 3.
Be illustrated in figure 2 blade movement schematic diagram, 16 represent to come flow path direction, the moving direction of 17 expression blades and platform.Streamwise is looked, and Fig. 2 (a) Leaf is subject to the constraint of left side magnetic confinement device 14, be subject to incoming flow active force to the right simultaneously and along blade and platform moving direction 17 shown in direction move.When blade with Platform movement to the right limit position time, blade is pushed into left side magnetic confinement device 14 around axle 2 by the hydraulic push rod 13 on the right, as Fig. 2 (b), now blade is subject to the direction change of fluid force and moves towards the left side, when blade with Platform movement to the left side limit position time, blade is pushed into the right magnetic confinement device 14 around axle 2 by the hydraulic push rod 13 on the left side, and so far blade 3, platform 12 and vertical shaft 2 complete the swing of one-period around horizontal axis 1.And so forth, horizontal axis 1 does periodic rotation under the drive of blade 3, and horizontal axis 1 drives engine shaft periodic rotary, thus output AC is electric.
As shown in Figure 3, horizontal axis 1 driven gear 8 moves the working principle of hydraulic mechanism, and gear 8 is with carry-over bar 9 to move, and tooth bar 9 drives the first piston 19 in oil hydraulic cylinder 10 and the second piston 20 to move.When first piston 19 and the second piston 20 move between first mouth of pipe 21 and second mouth of pipe 22, hydraulic oil is flowed back and forth by pipeline 18, and the hydraulic oil now in oil hydraulic cylinder 10 can not drive hydraulic push rod 13 to move, and blade 3 Relative vertical axle 2 position remains unchanged.When the second piston 20 moves right more than second mouth of pipe 22, oil hydraulic cylinder 10 starts to drive hydraulic push rod 13 to move, and changes the angle of blade 3.The effect that pipeline 18 exists is blade most of the time angle in a rolling period is remained unchanged, and only change the angle of attack fast at peak swing place, such being designed with is beneficial to raising energy absorbing efficiency.
This device adapts to different speed of incoming flow by following scheme:
When speed of incoming flow is larger, increase the rigidity of spring 7 by the axial motion stretched spring 7 of end 4, and then the swing amplitudes of limit blade 3; The spacing of first piston 19 and the second piston 20 can also be reduced simultaneously, blade is reversed to change angle at larger swing amplitudes place;
When speed of incoming flow is less, pull-off spring 7, reduction rigidity, thus ensure that blade 3 can have larger swing amplitudes, reserved enough energy drives blades 3 reverse to change angle; The spacing of first piston 19 and the second piston 20 can also be increased simultaneously, blade is reversed to change angle at less swing amplitudes place;
Flow velocity reduces further, and the fluid active force be applied on blade 3 is not enough to band moving vane 3 and reverses, and when the energy needed for energy Ratios blade twist gathered from fluid is in other words also little, this device cannot export electric energy; Flow velocity is now defined as critical flow velocity, out of service lower than this device of critical velocity, could export electric energy higher than critical velocity.
In addition, move after fluid is static, because blade remains an angle of attack, mechanism can realize self-starting when liquid speed is enough large again.
Claims (7)
1. utilize the electricity generating device of the waving of Oscillating Airfoil-twisted coupling motion pick fluid dynamic energy, it is characterized in that, comprise mutually vertical and the horizontal axis be fixedly connected with (1) and vertical shaft (2), the free end end face of vertical shaft (2) is provided with blade (3), and blade (3) and vertical shaft (2) can do oscillating motion around horizontal axis (1), blade (3) can do twist motion around the axle center of vertical shaft (2) simultaneously; The two ends of horizontal axis (1) are respectively first end (4) and the second end (5), circumference and the radial direction of first end (4) are fixed, and can along the axial motion of horizontal axis (1), the second end (5) is for being connected with power plant.
2. the electricity generating device utilizing the waving of Oscillating Airfoil-twisted coupling motion pick fluid dynamic energy according to claim 1, it is characterized in that, power plant are gearbox or generator.
3. the electricity generating device utilizing the waving of Oscillating Airfoil-twisted coupling motion pick fluid dynamic energy according to claim 1 and 2, it is characterized in that, the free end end face of vertical shaft (2) is provided with platform (12), blade (3) is arranged on this platform (12).
4. the electricity generating device utilizing the waving of Oscillating Airfoil-twisted coupling motion pick fluid dynamic energy according to claim 3, it is characterized in that, the platform (12) of blade (3) both sides is symmetrically arranged with two magnetic confinement devices (14) for limit blade (3) windup-degree, and two magnetic confinement devices (14) come the both sides of flow path direction (16) near blade (3).
5. the electricity generating device utilizing the waving of Oscillating Airfoil-twisted coupling motion pick fluid dynamic energy according to claim 3, it is characterized in that, horizontal axis (1) is also installed with gear (8), the tooth bar (9) engaged with gear (9) and oil hydraulic cylinder (10), first piston (19) and the second piston (20) is provided with in this oil hydraulic cylinder (10), tooth bar (9) moves along a straight line for driving the first piston (19) in oil hydraulic cylinder (10) and the second piston (20), the centre of oil hydraulic cylinder (10) offers first mouth of pipe (21) and second mouth of pipe (22), the two ends of oil hydraulic cylinder (10) offer the 3rd mouth of pipe and the 4th mouth of pipe respectively, be connected by pipeline (18) between first mouth of pipe (21) and second mouth of pipe (22), 3rd mouth of pipe and the 4th mouth of pipe are all connected with a hydraulic push rod (13) by flexible pipe (11), two hydraulic push rods (13) are fixed on platform (12), twist motion is done for promoting blade (3).
6. the electricity generating device utilizing the waving of Oscillating Airfoil-twisted coupling motion pick fluid dynamic energy according to claim 5, it is characterized in that, two hydraulic push rods (13) are positioned at the both sides coming flow path direction (16) near blade (3).
7. the electricity generating device utilizing the waving of Oscillating Airfoil-twisted coupling motion pick fluid dynamic energy according to claim 1 and 2, is characterized in that, be also provided with spring (7) between first end (4) and horizontal axis (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510742315.8A CN105257457B (en) | 2015-11-04 | 2015-11-04 | Utilize the TRT for waving twisted coupling motion pick fluid dynamic energy of Oscillating Airfoil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510742315.8A CN105257457B (en) | 2015-11-04 | 2015-11-04 | Utilize the TRT for waving twisted coupling motion pick fluid dynamic energy of Oscillating Airfoil |
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| Publication Number | Publication Date |
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| CN105257457A true CN105257457A (en) | 2016-01-20 |
| CN105257457B CN105257457B (en) | 2017-09-22 |
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| CN201510742315.8A Active CN105257457B (en) | 2015-11-04 | 2015-11-04 | Utilize the TRT for waving twisted coupling motion pick fluid dynamic energy of Oscillating Airfoil |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014761A (en) * | 2016-05-18 | 2016-10-12 | 西安交通大学 | Self-oscillation airfoil type generating set utilizing vortex shedding effect |
| CN106337777A (en) * | 2016-09-21 | 2017-01-18 | 西安交通大学 | All-passive dual-flapping wing energy absorbing device |
| CN107640316A (en) * | 2017-07-21 | 2018-01-30 | 哈尔滨工程大学 | A kind of long voyage vibration rotor aircraft |
| CN113982840A (en) * | 2021-10-29 | 2022-01-28 | 西安交通大学 | Power-increasing wind turbine suitable for mountain valley wind and power generation method |
| GB2622277A (en) * | 2022-09-12 | 2024-03-13 | Sealec Ltd | A power generator for generating power from a water flow |
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| CN101100975A (en) * | 2007-08-01 | 2008-01-09 | 欧子文 | Cable wire stepless regulation and control device for blade swinging range |
| US20090218822A1 (en) * | 2008-02-28 | 2009-09-03 | Rink Philip A | Buoyant blade free stream tidal power device |
| CN201891554U (en) * | 2010-12-09 | 2011-07-06 | 江苏大学 | Swinging type wind energy generator |
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2015
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Patent Citations (5)
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| CN87214618U (en) * | 1987-10-28 | 1988-08-03 | 金丹 | Worm wheel type windmill with automatic control attack angle |
| CN1811174A (en) * | 2005-09-09 | 2006-08-02 | 欧子文 | Swinging wind-driven set |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014761A (en) * | 2016-05-18 | 2016-10-12 | 西安交通大学 | Self-oscillation airfoil type generating set utilizing vortex shedding effect |
| CN106014761B (en) * | 2016-05-18 | 2018-06-26 | 西安交通大学 | A kind of self-oscillation aerofoil profile power generator using vortex shedding effect |
| CN106337777A (en) * | 2016-09-21 | 2017-01-18 | 西安交通大学 | All-passive dual-flapping wing energy absorbing device |
| CN106337777B (en) * | 2016-09-21 | 2018-07-17 | 西安交通大学 | A kind of complete passive double flapping wing energy absorption devices |
| CN107640316A (en) * | 2017-07-21 | 2018-01-30 | 哈尔滨工程大学 | A kind of long voyage vibration rotor aircraft |
| CN107640316B (en) * | 2017-07-21 | 2019-04-12 | 哈尔滨工程大学 | A kind of long voyage vibration rotor aircraft |
| CN113982840A (en) * | 2021-10-29 | 2022-01-28 | 西安交通大学 | Power-increasing wind turbine suitable for mountain valley wind and power generation method |
| CN113982840B (en) * | 2021-10-29 | 2023-01-20 | 西安交通大学 | Power-increasing wind turbine suitable for mountain valley wind and power generation method |
| GB2622277A (en) * | 2022-09-12 | 2024-03-13 | Sealec Ltd | A power generator for generating power from a water flow |
| WO2024057002A1 (en) | 2022-09-12 | 2024-03-21 | Sealec Ltd | A power generator for generating power from a water flow |
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| CN105257457B (en) | 2017-09-22 |
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