CN207728482U - Tandem wing marine tidal-current energy acquisition equipment - Google Patents
Tandem wing marine tidal-current energy acquisition equipment Download PDFInfo
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- CN207728482U CN207728482U CN201820017717.0U CN201820017717U CN207728482U CN 207728482 U CN207728482 U CN 207728482U CN 201820017717 U CN201820017717 U CN 201820017717U CN 207728482 U CN207728482 U CN 207728482U
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- blade
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- wing
- energy acquisition
- current 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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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- Hydraulic Turbines (AREA)
Abstract
The utility model discloses a kind of tandem wing marine tidal-current energy acquisition equipments, include mainly main body frame, the corner control mechanism of blade, the amplitude controlling mechanism of blade, the level interval of front vane and rear blade and phase control mechanism, generating set；Amplitude controlling mechanism includes crank connecting rod sliding block mechanism, and corner control mechanism includes gear set.The both ends of the shaft of corner control mechanism and amplitude controlling mechanism are equipped with flying wheel and generator.Kinetic energy in leaf harvest flow drives generator to realize energy conversion by crank connecting rod sliding block mechanism.In a certain range by the rotation phase official post Strouhal number of blade before and after adjusting, rear wing will have larger effective angle of attack in the trailing vortex field of front wing, and then realize higher energy acquisition efficiency.Device whole installation is simple and reliable, and noise is small, and energy acquisition is efficient, has a extensive future.
Description
Technical field
The utility model is related to a kind of marine tidal-current energy generating equipment more particularly to a kind of tandem wing marine tidal-current energy acquisition equipments.
Background technology
With the progress of society, the consumption of the traditional fossil energies such as oil, coal increasingly increases and total amount is limited, green
Regenerative resource obtains most attention both domestic and external.Marine tidal-current energy can alleviate current change as a kind of green regenerative energy sources
Stone energy shortage problem, while the environmental pollution brought using fossil energy can also be effectively reduced.
Currently, the development device to marine tidal-current energy mainly has vertical axis turbine and trunnion axis turbine.Perpendicular axis type turbine not by
The limitation of direction of tide, but attack angle of blade cannot be effectively controlled, energy acquisition is less efficient；Horizontal axial type turbine uses propeller
Formula blade, it is stable, it can be conveniently overhauled, but the acquisition for influencing energy is interfered with each other between blade, while being unfavorable in water
Deep confined area arrangement.
Utility model content
The purpose of this utility model is to provide one kind can be according to easily being adjusted under flow condition, keep higher energy
Measure the tandem wing marine tidal-current energy acquisition equipment of collecting efficiency.
The purpose of this utility model is achieved through the following technical solutions：
The tandem wing marine tidal-current energy acquisition equipment of the utility model, including the corner control mechanism of main body frame, blade, blade
Amplitude controlling mechanism, the level interval of front vane and rear blade and phase control mechanism, generating set；
The amplitude controlling mechanism includes crank connecting rod sliding block mechanism, and the corner control mechanism includes gear set.
The tandem wing tide that the utility model embodiment provides it can be seen from above-mentioned technical solution provided by the utility model
Stream energy acquisition equipment, simple and reliable for structure, easy for installation, energy capture is efficient, relatively low on the influence of underwater environment around, is easy to
It is arranged in shallow water area.
Description of the drawings
Fig. 1 is the structural schematic diagram for the tandem wing marine tidal-current energy acquisition equipment that the utility model embodiment provides；
Fig. 2 is the structural schematic diagram of the control mechanism of the up and down reciprocatingly amplitude of blade in the utility model embodiment；
Fig. 3 is the structural schematic diagram of the utility model blade rotating angle control device；
Fig. 4 is that the front and back wing of the front and back wing in the utility model embodiment rotates synchronously phase and level interval control mechanism
Structural schematic diagram；
Fig. 5 is the side view of the utility model embodiment；
Fig. 6 is the front view of the utility model embodiment；
Fig. 7 is the front and back adjusting schematic diagram of front and back wing level interval in the utility model embodiment；
Fig. 8 is the movement schematic diagram of the front and back wing in the utility model embodiment；
Fig. 9 is the structural schematic diagram of seat bottom type marine tidal-current energy capture arrangement in the utility model embodiment；
Figure 10 is the structural schematic diagram of floating-type tidal current energy capture arrangement in the utility model embodiment；
Figure 11 is the efficiency of blade before and after two-dimensional CFD numerical simulations in the utility model embodiment as phase difference changes
Change curve；
Figure 12 is the efficiency of blade before and after two-dimensional CFD numerical simulations in the utility model embodiment as level interval changes
The change curve of change.
In figure：
1 frame, 1.1 sliding rails, 2 front wing frames, 2.1 sliding rails, 2.2 shafts, 2.3 shafts, 2.4 generators, 2.5 cranks,
2.5.1 crank, 2.6 connecting rods, 2.6.1 connecting rods, 2.7 corner control mechanisms, 2.7.1 corner control mechanisms, 2.7-1 pinion gears,
2.7-2 gear wheels, 2.8 front wings, 2.9 slide-bars, 3.9.1 slide-bars, 2.10 synchronizing wheels, 2.11 synchronizing wheel of 2.10.1 synchronizing wheels,
2.11.1 synchronizing wheel, 2.12 shafts, 2.13 synchronizing wheels, 2.14 synchronizing wheels, 2.15 synchronous belts, 2.16 sliding blocks, 3 rear wing frames, 3.1
Shaft, 3.2 synchronizing wheels, 3.2.1 synchronizing wheels, 3.3 cranks, 3.4 generators, 3.4.1 generators, 3.5 slide-bars, 3.5.1 cranks you,
3.6 shafts, 3.7 rear wings, 3.8 synchronizing wheels, 3.9 synchronizing wheels, 3.10 synchronous belts, 3.11 connecting rods, 3.11.1 connecting rods, 3.12 corner controls
Mechanism processed, 3.12.1 corner control mechanisms, 3.12-1 pinion gears, 3.12-2 gear wheels, 3.13 sliding blocks, 4 hydraulic stems, 5 synchronous belts,
6 synchronous belts, 7 small-waterplane-area hulls, 8 waters surface, 9 water (flow) directions.
Specific implementation mode
The utility model embodiment will be described in further detail below.Do not make in the utility model embodiment in detail
The content of description belongs to the prior art well known to professional and technical personnel in the field.
The tandem wing marine tidal-current energy acquisition equipment of the utility model, preferable specific implementation mode are：
Water including main body frame, the corner control mechanism of blade, the amplitude controlling mechanism of blade, front vane and rear blade
Flat spacing and phase control mechanism, generating set；
The amplitude controlling mechanism includes crank connecting rod sliding block mechanism, and the corner control mechanism includes gear set.
The both ends of the shaft of the corner control mechanism and amplitude controlling mechanism are equipped with flying wheel and generator.
The amplitude of the blade and the chord ratio of blade are 1:1, the magnification ratio coefficient of the corner of the blade is
6.154。
The level interval and phase control mechanism include triangle synchronizing wheel and synchronous belt, the triangle of the triangle synchronizing wheel
Shape is equipped with hydraulic pressure post adjustment mechanism on one side.
The global phase difference of the relationship of the relative position of the front vane and rear bladeDescription；
In above formula, ψ1-2：Global phase difference, Lx：The spacing of the horizontal direction of front and back blade, U：Current water velocity, T：
The period of motion of blade, ε：The heaving of blade and the phase difference of rotational motion, are set as pi/2.
The nondimensionalization value of the overall situation phase difference is ψ1-2/ 2 π=0.444.
The tandem wing marine tidal-current energy acquisition equipment of the utility model is based on bionic principle, sets flapping for reasonable running orbit
More efficient energy acquisition efficiency may be implemented in the parameter areas such as appropriate amplitude, corner in the wing.Thus the bat designed
Dynamic wing electricity energy harvester has that energy capture is efficient, have fewer environmental impacts, noise is small, it is excellent to be used etc. in shallow water area
Point；Meanwhile the wing of flapping uses prismatic blade structure, simple and reliable, processing and maintenance cost low.
In addition, fish trip population effect etc. is in one studies have shown that in the corresponding trailing vortex field that fish body travelling in front generates
Higher propulsive efficiency can be obtained by positioning the fish set.Applicant is had found corresponding when being carried out using the tandem wing by numerical simulation
Energy acquisition, adjust the parameters such as rear wing position, movement, obtain optimal global phase difference, make full use of the toll bar of front wing generation
Vortex street increases the effective angle of attack of rear wing, further increases energy acquisition efficiency.
The utility model can easily be adjusted global phase difference, higher marine tidal-current energy kept to catch according to local water stream characteristics
Efficiency is obtained, marine tidal-current energy power field is mainly used in.
Whole utility model device includes mainly main body frame, the corner control mechanism of blade, the amplitude controlling of blade
Mechanism, the level interval of front and back blade and phase control mechanism and generating set.Water impact blade, gives blade lift,
Under the collective effect of corner control mechanism and amplitude controlling mechanism, blade starts to do movement up and down reciprocatingly, passes through front and back blade
Level interval and phase control mechanism adjust the level interval of front and back blade and phase difference and then rear wing can be made in front wing
The suitable position being in the Karman vortex street formed in trailing vortex field and phase, to improve rear wing energy acquisition efficiency.
The upper and lower amplitude motion control that blade is realized using crank connecting rod sliding block mechanism, is arranged the amplitude and blade of blade
Chord ratio be 1:1.
The amplification of blade rotating angle is realized using size gear ratio, the magnification ratio coefficient of the corner of blade is 6.154.
In order to realize moving synchronously for front and back blade, the rotational angular velocity of the front and back wing is consistent, and device passes through front and back
Blade moves synchronously before and after synchronizing wheel and synchronous belt reality.
In order to realize front and back blade horizontal direction spacing adjusting, device using triangle synchronizing wheel design, pass through adjusting
The length of side on triangle one side, and then realize the adjusting of the spacing of another side, the level interval adjusting of front and back blade passes through hydraulic stem
It realizes.
For the relationship of the relative position of blade before and after the description of system, the concept of global phase difference, ψ are introduced here1-2：
Global phase difference, Lx：The spacing of the horizontal direction of front and back blade, U：Current water velocity, T：The period of motion of blade, ε are
The heaving of blade and the phase difference of rotational motion are set as pi/2, then global phase difference is：Pass through CFD
Numerical simulation finds the nondimensionalization ψ when the difference of global phase1-2When near/2 π=0.444, at the energy capture efficiency of rear wing
In relatively high state.
In order to which realization device overall operation is stablized, increases flying wheel and generator at the both ends of output shaft, can make so defeated
Shaft both ends stress balance, while easily against movement dead.
The tandem wing marine tidal-current energy acquisition equipment of the utility model carries out the capture of marine tidal-current energy using formula prismatic blade of flapping, and passes through
The running orbit of the blade of optimization is set, relatively easy reliable full passive type mechanical device is designed.Device has simple in structure
Reliably, easy for installation, energy capture is efficient, relatively low on the influence of underwater environment around, is easy to be arranged in shallow water area, right
Following tandem flaps formula energy capture device with certain guiding value.
It is realized by crank connecting rod sliding block mechanism and the running orbit of corner control realization blade, the amplitude up and down of blade is
1 times of leaf chord length, the rotational motion of blade are 90 ° with up and down motion phase difference, by the amplification of gear ratio by blade rotating angle
70 ° are amplified to, the setting of this running orbit can effectively improve the energy capture efficiency for the wing of flapping.
Research finds that Karman vortex street can be generated in trailing vortex field during front wing pumps, in this way in trailing vortex field
In rear wing will be influenced by Karman vortex street.The concept for introducing global phase difference finds global phase difference by CFD numerical value
Dimensionless number be ψ1-2When/2 π=0.444 or so, the energy capture efficiency of rear wing is in highest state.The present apparatus passes through three
Angle synchronizing wheel transmission and hydraulic stem realize the synchronism of adjusting and the movement of the horizontal direction spacing of front and back blade, can be according to flow
Easily adjust global phase difference so that the energy capture efficiency of device keeps higher level in varied situations.
Device whole installation is symmetrical structure, the advantage of doing so is that device left and right stress during movement
Equilibrium, can more effective avoiding device stress raisers, the service life is longer for device.
Specific embodiment：
As shown in Figures 1 to 12, the parts that the utility model includes mainly have：1 frame, 1.1 sliding rails, 2 front wing frames,
2.1 sliding rails, 2.2 shafts, 2.3 shafts, 2.4 generators, 2.5 cranks, 2.5.1 cranks, 2.6 connecting rods, 2.6.1 connecting rods, 2.7 corners
Control mechanism, 2.7.1 corner control mechanisms, 2.7-1 pinion gears, 2.7-2 gear wheels, 2.8 front wings, 2.9 slide-bars, 3.9.1 slide-bars,
2.10 synchronizing wheels, 2.11 synchronizing wheel of 2.10.1 synchronizing wheels, 2.11.1 synchronizing wheels, 2.12 shafts, 2.13 synchronizing wheels, 2.14 synchronize
Wheel, 2.15 synchronous belts, 2.16 sliding blocks, 3 rear wing frames, 3.1 shafts, 3.2 synchronizing wheels, 3.2.1 synchronizing wheels, 3.3 cranks, 3.4 hairs
Motor, 3.4.1 generators, 3.5 slide-bars, 3.5.1 cranks you, 3.6 shafts, 3.7 rear wings, 3.8 synchronizing wheels, 3.9 synchronizing wheels, 3.10
Synchronous belt, 3.11 connecting rods, 3.11.1 connecting rods, 3.12 corner control mechanisms, 3.12.1 corner control mechanisms, 3.12-1 pinion gears,
3.12-2 gear wheels, 3.13 sliding blocks, 4 hydraulic stems, 5 synchronous belts, 6 synchronous belts, 7 small-waterplane-area hulls, 8 waters surface, 9 water (flow) directions.
Fig. 1 main presentations main agent structure of the utility model, before two hydrofoils of device collecting energy carry out
After arrange, the upper and lower periodicity of blade is realized in the movement of individual blade by crank connecting rod sliding block mechanism and corner control mechanism
Reciprocating motion, the adjusting of the level interval of front and back blade is realized by the level interval and phase-difference control mechanism of front and back blade
With the adjusting of the motion phase difference of front and back blade.It is equipped with generator at the output shaft both ends of front and back blade, by leaf harvest
Water flow dynamic energy is converted into electric energy.
The chord ratio of amplitude and blade that blade moves up and down is 1:1, to prevent the trailing vortex that the measurements of the chest, waist and hips of wing tip fall off to leaf
The influence of piece energy acquisition performance is provided with corresponding end plate in wing tip, can effectively reduce in this way.It is controlled by corner
The corner of blade is amplified to 70 ° by mechanism, while when by the vertex of blade movement to upper and lower stroke, converts rotation direction at once,
Realize the cycle movement that blade moves up and down.The Proper Match of corner control mechanism and crank connecting rod sliding block slide block mechanism is set
Meter realizes the higher energy acquisition efficiency of blade.Wherein the pinion gear of corner amplifier is fixed by the axis of jackscrew and blade, greatly
Gear is connected by bolt with connecting rod.More stablize to make blade be run in water impact, the motion structure of blade is adopted
With both sides symmetric design, while in a crank position installation even symmetrical crank, symmetrical crank, which is equipped with, to bear a heavy burden, and such purpose is to work as
Above and below blade movement when the dead-centre position of stroke, it can be relatively easy to overcome movement dead.The design of the motion structure of rear wing
It is roughly the same with the motion structure design of front wing.
In order to realize that the spacing of the horizontal direction of front and back blade is adjusted and motion phase difference is adjusted, the corresponding fortune of device design
The rotation of front and back blade is communicated up by motivation structure by synchronizing wheel and synchronous belt, and right angled triangle is designed as by two
Synchronizing wheel and the spacing of synchronous belt horizontal direction that front and back blade is adjusted adjust, be equipped among front wing frame shaft same
Step wheel, both ends are equipped with corresponding synchronizing wheel, and shaft both ends above are equipped with corresponding synchronizing wheel, are set at the shaft both ends of rear wing
There is corresponding synchronizing wheel, the front and back wing is synchronized into the synchronous drive mechanism for carrying out link and realizing triangle by synchronous.In front wing
It is respectively mounted corresponding sliding block below the bottom and generator support plate of frame and rear wing frame, is installed on the frame of device entirety
Corresponding sliding rail.Hydraulic stem there are two being set at the intermediate both ends of the frame of front and back blade, before and after the flexible realization of hydraulic stem
The adjusting of blade level side spacing.
Device general frame uses profile design, makes simply in this way, structural strength is reliable.The range that device can be arranged
It is relatively broad, it can be arranged in seabed, the energy capture for carrying out corresponding marine tidal-current energy on the platform of floatation type can also be arranged in,
It can also be arranged in than shallower water channel, river etc..The blade operating mechanism of device is designed using the mechanical mechanism of full passive type,
The movement of this sampling device is more stablized, and is also easy to repair.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
It is confined to this, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should
Subject to the scope of protection of the claims.
Claims (4)
1. a kind of tandem wing marine tidal-current energy acquisition equipment, which is characterized in that including main body frame, the corner control mechanism of blade, leaf
The amplitude controlling mechanism of piece, the level interval of front vane and rear blade and phase control mechanism, generating set；
The amplitude controlling mechanism includes crank connecting rod sliding block mechanism, and the corner control mechanism includes gear set.
2. tandem wing marine tidal-current energy acquisition equipment according to claim 1, which is characterized in that the corner control mechanism and shake
The both ends of the shaft of width control mechanism are equipped with flying wheel and generator.
3. tandem wing marine tidal-current energy acquisition equipment according to claim 2, which is characterized in that the amplitude and blade of the blade
Chord ratio be 1:1, the magnification ratio coefficient of the corner of the blade is 6.154.
4. tandem wing marine tidal-current energy acquisition equipment according to claim 1, which is characterized in that the level interval and phase control
Mechanism processed includes triangle synchronizing wheel and synchronous belt, and the triangle of the triangle synchronizing wheel is equipped with hydraulic pressure post adjustment mechanism on one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820017717.0U CN207728482U (en) | 2018-01-05 | 2018-01-05 | Tandem wing marine tidal-current energy acquisition equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820017717.0U CN207728482U (en) | 2018-01-05 | 2018-01-05 | Tandem wing marine tidal-current energy acquisition equipment |
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| Publication Number | Publication Date |
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| CN207728482U true CN207728482U (en) | 2018-08-14 |
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| CN201820017717.0U Active CN207728482U (en) | 2018-01-05 | 2018-01-05 | Tandem wing marine tidal-current energy acquisition equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019311A (en) * | 2018-01-05 | 2018-05-11 | 中国科学技术大学 | Tandem wing marine tidal-current energy acquisition equipment |
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- 2018-01-05 CN CN201820017717.0U patent/CN207728482U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019311A (en) * | 2018-01-05 | 2018-05-11 | 中国科学技术大学 | Tandem wing marine tidal-current energy acquisition equipment |
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