CN204327392U - A kind of vertical-axis tide energy electricity generating device - Google Patents
A kind of vertical-axis tide energy electricity generating device Download PDFInfo
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- CN204327392U CN204327392U CN201420788027.7U CN201420788027U CN204327392U CN 204327392 U CN204327392 U CN 204327392U CN 201420788027 U CN201420788027 U CN 201420788027U CN 204327392 U CN204327392 U CN 204327392U
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- blade
- impeller
- generating device
- electricity generating
- pedestal
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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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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Abstract
The utility model relates to a kind of vertical-axis tide energy electricity generating device, and described electricity generating device comprises the first pedestal, the second pedestal, generator, upper impeller, lower impeller; Described generator comprises rotor and stator; Described rotor is assemblied on the first rotatingshaft; First described rotatingshaft one end is connected with generator, and the other end is connected with upper impeller; The other end of described upper impeller is connected with the first pedestal by connection set; The lower end of described generator connects the second rotatingshaft, and second described rotatingshaft one end is connected with stator, and the other end is connected with lower impeller; Described upper impeller and lower impeller are SAVONIUS type blade; Described blade comprises concave-blade and convex surface blade, and wherein the overlap ratio S/D of concave-blade and convex surface blade is fixed as 0.2.Its advantage shows: self-starting performance is good; Improve the stability of device, improve the operating conditions of connection set; Improve generating efficiency; Eliminate the mechanical parts such as complicated gear drive.
Description
Technical field
The utility model relates to regenerable marine energy technical field of comprehensive utilization, specifically, is a kind of vertical-axis tide energy electricity generating device.
Background technique
Marine tidal-current energy, as the renewable new energy of green of cleanliness without any pollution, has the features such as reserves are large, distribution is wide, predictability is strong, environmental pollution is little, develop marine tidal-current energy to alleviation energy shortage, reduce environmental pollution and have important practical significance.The principal mode that marine tidal-current energy utilizes utilizes tidal current energy generating equipment to generate electricity, its principle is: marine tidal-current energy impulse water turbine, and the kinetic energy that marine tidal-current energy flows is converted to the mechanical energy of water turbine, water turbine is through mechanical transmission, drive electrical generators generates electricity, and mechanical energy is converted to electric energy.Tidal current energy generating equipment, according to the difference of hydraulic turbine structure form, is divided into horizontal axial type, perpendicular axis type.
In prior art, horizontal axis tidal current energy electricity generating device, has very large similarity with current wind-driven generator, is also often called as " underwater windmill ".Its principle is that the impeller of horizontal arrangement starts to rotate under the effect of current, then passes through wheel hub main shaft, transmission system by energy transferring to generator, and drive electrical generators generating.Horizontal axis tidal current energy electricity generating device shortcoming be need ceaselessly adjustment direction to keep consistent with marine tidal-current energy direction, blade huge complex-shaped, the large cost of manufacture difficulty is high, hub configuration installation in cabin is inconvenient.
Vertical-axis tide energy electricity generating device great majority have employed the straight-vaned structure in fixing drift angle, the self-starting Performance Ratio of this blade is poor, and blade is in rotating a circle, the wing angle of attack constantly changes, make blade cannot be operated in best wing angle of attack place always, thus impeller to catch energy efficiency low; The cyclically-varying of leaf position also makes the stressed also cyclically-varying of rotating shaft, and unit vibration is comparatively large, rotating shaft and bearing working inclement condition.
Chinese patent literature CN201020621184.0, patent name is " a kind of vertical shaft tidal generating set ", discloses a kind of vertical tidal generating set, comprises upper platform part, supporting frame part, impeller wheel portion three modules; Upper platform part comprises generator, gear-box, level connection joint axle, support platform, pillar and vertical connection shaft; Support frame part is connected to form by upper frame plate, lower frame frame plate, left frame plate and right frame plate; Impeller wheel portion comprises main shaft, spoke cover, spoke, spoke shaft, blade, sharf, wheel rim and self-adaptive controlled angle of attack device.
The program has good structural strength, can to maximization future development, under can be applicable to floating platform, pile foundation and tension leg, conveniently to produce, making and installation and debugging.But total more complicated, and whole device transmit forms of motion from impeller to generator complicated, in transmittance process, useful work utilization ratio reduces gradually, efficiency of energy collection and energy transformation ratio low.
Chinese patent literature CN200910073171.6, patent name is " high-power vertical trend shaft device ", disclose a kind of high-power vertical trend shaft device, gravity type king-post support is connected by universal spherical joint with between king-post, cabin is arranged on king-post top, cabin outer rim is distributed with anchor chain orderliness and is connected on anchor with hawser by keg float and anchor chain, hydraulic turbine main shaft is enclosed within king-post, hydraulic turbine main shaft two ends are provided with bearing, the blade of water turbine is distributed on by spoke and is fixed on the wheel hub of main shaft, bevel gear on main shaft is engaged with the bevel pinion on generator shaft in cabin, the upper end of main shaft and cabin lower wall and king-post install sealing axle sleeve additional, be connected by flange plate between support with universal spherical joint.
This solution provides a kind of general structure problem that can solve large scale water turbine, realize the vertical-axis tide energy electricity generating device of unit high-power.But water turbine self-starting poor performance, manufacture difficulty is large, cost is high, cabin hub configuration installs inconvenience, working life is short.
In sum, need a kind of raising efficiency of energy collection and energy conversion efficiency, raising generating efficiency badly, simplify mechanical structure, increase the service life, the vertical-axis tide energy electricity generating device that self-starting performance is good, but yet there are no report about this vertical-axis tide energy electricity generating device.
Summary of the invention
The purpose of this utility model is for deficiency of the prior art, provides kind of raising efficiency of energy collection and energy conversion efficiency, raising generating efficiency, simplifies mechanical structure, increases the service life, the vertical-axis tide energy electricity generating device that self-starting performance is good.
For achieving the above object, the technological scheme that the utility model is taked is:
A kind of vertical-axis tide energy electricity generating device, described electricity generating device comprises the first pedestal, the second pedestal, generator, upper impeller, lower impeller; Described generator comprises rotor and stator; Described rotor and the coaxial counterrotating of stator; Described rotor is assemblied on the first rotatingshaft; First described rotatingshaft one end is connected with generator, and the other end is connected with upper impeller; The other end of described upper impeller is connected with the first pedestal by connection set; Described generator lower end connects the second rotatingshaft, and second described rotatingshaft one end is connected with stator, and the other end is connected with lower impeller; The described lower impeller the other end is connected with the second pedestal by connection set; Described upper impeller is identical with lower blade wheel structure shape, and upper impeller and lower impeller coaxial line are installed, and wherein go up impeller contrary with lower impeller installation direction; Described upper impeller and lower impeller are SAVONIUS type blade; Described blade comprises concave-blade and convex surface blade, and wherein the overlap ratio S/D of concave-blade and convex surface blade is fixed as 0.2; Described concave-blade and convex surface blade are Integratively formed; Described concave-blade and convex surface smooth blade surface; The concave-blade of described upper impeller is corresponding with the convex surface blade of lower impeller, and the convex surface blade of upper impeller is corresponding with the concave-blade of lower impeller.
The number of blade of described upper impeller and lower impeller is 2.
Described electricity generating device also comprises anchor chain fixing frame, bearing supporting frame; Fix riveted joint between described first pedestal and the second pedestal and have 4 anchor chain fixing frames, described anchor chain fixing frame connection bearing support; Described bearing bracket is fixedly connected with the outer wall of bearing; Described bearing inner wall is fixedly connected with generator by screw.
The quantity of described electricity generating device is at least one.
The utility model advantage is:
1, select SAVONIUS type blade to overcome the shortcoming of fixing drift angle formula prismatic blade self-starting poor performance, no matter current from which direction flow through, and upper impeller and lower impeller all can rotate backward by coaxial line, and namely rotatable when flow velocity is lower, self-starting performance is good;
2, upper impeller and lower impeller are coaxially reverse, and moment of torsion is cancelled out each other, and improves the stability of device, improves the operating conditions of connection set;
3, stators and rotators prolongs opposite direction rotation, increases speed of related movement between the two, improves generating efficiency;
4, the impeller of vertical-axis tide energy electricity generating device has upper and lower bilobed wheel pattern, and is directly connected with stators and rotators, eliminates the mechanical parts such as complicated gear drive, simplifies mechanical structure, increases the service life;
5, this device can be powered for devices such as the off-grid beacon of offshore, buoys.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of a kind of vertical-axis tide energy electricity generating device of the present utility model.
Accompanying drawing 2 is plan views of a kind of vertical-axis tide energy electricity generating device of the present utility model.
Accompanying drawing 3 is upper blade wheel structure schematic diagram of the present utility model.
Accompanying drawing 4 is upper impeller plan views of the present utility model.
Accompanying drawing 5 is structural representations of another kind of vertical-axis tide energy electricity generating device of the present utility model.
Accompanying drawing 6 is structural representations of another vertical-axis tide energy electricity generating device of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the embodiment that the utility model provides is elaborated.
The reference character related in accompanying drawing and constituent element as follows:
1. the first pedestal 2. second pedestal
3. anchor chain fixing frame 4. bearing bracket
41. bearing 5. generators
6. the first rotatingshaft 61. second rotatingshaft
7. go up impeller 71. concave-blade
72. convex surface blade 8. times impellers
9. connection set
Embodiment 1
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of vertical-axis tide energy electricity generating device of the present utility model.A kind of vertical-axis tide energy electricity generating device, described electricity generating device comprises the first pedestal 1 and the second pedestal 2, and fixing riveted joint between described first pedestal 1 and the second pedestal 2 has 4 anchor chain fixing frames 3, described anchor chain fixing frame 3 connection bearing support 4; Described bearing bracket 4 is fixedly connected with the outer wall of bearing 41; Described bearing 41 inwall is fixedly connected with generator 5 by screw; Described generator comprises rotor and stator (not shown).
Please refer to Fig. 2, Fig. 2 is the plan view of a kind of vertical-axis tide energy electricity generating device of the present utility model.Described rotor is assemblied on the first rotatingshaft 6; First described rotatingshaft 6 one end is connected with generator 5, and the other end is connected with upper impeller 7; The other end of described upper impeller 7 is connected with the first pedestal 1 by connection set 9; The lower end of described generator 5 connects the second rotatingshaft 61, and second described rotatingshaft 61 one end is connected with stator, and the other end is connected with lower impeller 8; Described lower impeller 8 the other end is connected with the second pedestal 2 by connection set 9.
Please refer to Fig. 3, Fig. 3 is upper blade wheel structure schematic diagram of the present utility model.Described upper impeller 7 is provided with SAVONIUS type blade, and described blade comprises concave-blade 71 and convex surface blade 72; Described concave-blade 71 and convex surface blade 72 are Integratively formed, described concave-blade 71 and convex surface blade 72 smooth surface.
Please refer to Fig. 4, Fig. 4 is upper impeller plan view of the present utility model.Overlapped between described concave-blade 71 and convex surface blade 72, wherein the overlap ratio S/D of concave-blade 71 and convex surface blade 72 is fixed as 0.2.
Described upper impeller 7 is identical with lower impeller 8 shape and structure, upper impeller 7 and lower impeller 8 coaxial line are installed, wherein go up impeller 7 contrary with lower impeller 8 installation direction, namely the convex surface blade 72 going up the concave-blade 71 of impeller 7 and lower impeller 8 is corresponding, the convex surface blade 72 of upper impeller 7 and the concave-blade 71 of lower impeller 8 corresponding.
It should be noted that: select SAVONIUS type blade, its number of blade optional 2-8 sheet blade, according to correlation test, in the present embodiment, the preferred number of blade is 2, two leaf productions are simple, with low cost, are easy to maintaining, generating efficiency is high, make whole installation weight comparatively light, more easily places time below whole device pendency with buoyancy aid; The overlap ratio S/D of SAVONIUS type blade is one of parameter affecting Static and dynamic performance, according to practical experience, when overlap ratio S/D is 0.2 efficiency of energy collection and energy conversion efficiency the highest.
The first described pedestal 1 and the second pedestal 2 are carriers of whole electricity generating device; Whole electricity generating device is fixed on seabed by anchor chain by described anchor chain fixing frame 3, is not washed upside down by marine tidal-current energy; Described bearing bracket 4 connects anchor chain fixing frame 3, and in fixed installation process, anchor chain fixing frame 3 is subject to outside pulling force, bearing bracket 4 provides inside pulling force, make anchor chain fixing frame 3 stress balance, avoid anchor chain fixing frame 3 because of unbalance stress, torsional deformation; Described bearing 41 is assemblied on generator 5, prevents generator 5 radial-play; The installation direction of described upper impeller 7 and lower impeller 8 is contrary, and the energy density of water is comparatively large, and compared with other medium, trend more can be supplied to the larger rotation torque of blade, and self-starting performance is good; No matter waterpower can be stressed from which direction, can be in forced position when the blade of lower impeller 8 and upper impeller 7 is total, and therefore how waterpower direction changes and all ensure upper impeller 7 and the rotary motion of lower impeller 8; Described upper impeller 7 is arranged on the first rotatingshaft 6, and when trend is through upper impeller 7, waterpower promotes blade rotary, drives the first rotatingshaft 6 to rotate together simultaneously, and then the rotor on the first rotatingshaft 6 is synchronized with the movement; Described lower impeller 8 is connected with the stator of generator 5 by the second rotatingshaft 61, when marine tidal-current energy is through lower impeller 8, the direction that lower impeller 8 is contrary with upper impeller 7 rotates, and namely the stators and rotators of described generator 5 is all rotatable, stator is contrary with rotor direction, and adopts waterproof sealing protection; Described rotor rotational movement produces the magnetic field rotated, and described stator rotates along the direction that rotor is contrary, and essence is that cutting rotating magnetic field produces induction electromotive force.
The working principle of a kind of marine tidal-current energy vertical shaft electricity generating device of the present utility model is: vertical-axis tide energy electricity generating device is under the effect of current, no matter current from which direction flow into, the equal moment that can produce circumferencial direction to blade, thus promotion vane rotary, upper impeller 7 and the counterrotating of lower impeller 8 coaxial line, the stators and rotators of drive electrical generators 5 prolongs opposite direction rotation separately simultaneously, rotor rotational movement produces rotating magnetic field, stator counter-rotates in cutting magnetic induction line in rotating magnetic field, thus generation induction electromotive force, make marine tidal-current energy be converted into electric energy.
A kind of marine tidal-current energy vertical shaft electricity generating device of the present utility model, SAVONIUS type blade is selected to overcome the shortcoming of fixing drift angle formula prismatic blade self-starting poor performance, no matter current from which direction flow through, upper impeller 7 and lower impeller 8 all can rotate backward by coaxial line, namely rotatable when flow velocity is lower, self-starting performance is good; Coaxially oppositely, moment of torsion is cancelled out each other, and improves the stability of device, improves the operating conditions of connection set 9 for upper impeller 7 and lower impeller 8; Stators and rotators prolongs opposite direction and rotates, and increases speed of related movement between the two, improves generating efficiency; The impeller of vertical-axis tide energy electricity generating device has upper and lower bilobed wheel pattern, and is directly connected with stators and rotators, eliminates the mechanical parts such as complicated gear drive, simplifies mechanical structure, increases the service life.
Embodiment 2
Please refer to Fig. 5, Fig. 5 is the structural representation of another kind of vertical-axis tide energy electricity generating device of the present utility model.The present embodiment is substantially the same manner as Example 1, and difference is without anchor chain fixing frame 3, bearing bracket 4, bearing 41 in the present embodiment, and whole apparatus structure is simple, easy to operate; Whole device be placed in swim in the water surface object below, such as boats and ships.During use, anchor chain fixing frame 3 of dismantling, then be fixed in the below of buoyancy aid.
Embodiment 3
Please refer to Fig. 6, Fig. 6 is the structural representation of another vertical-axis tide energy electricity generating device of the present utility model.The present embodiment is substantially the same manner as Example 1, difference is, have in the present embodiment and select 2 vertical shaft electricity generating devices, array is in the seabed of marine tidal-current energy process, form generating field, wherein the quantity of the vertical shaft generating field of array is not limited to and the quantity in the present embodiment, the quantity of vertical shaft electricity generating device can be selected as required, this device can be powered for devices such as the off-grid beacon of offshore, buoys, also can form the seabed, lakebed etc. that array is fixed on marine tidal-current energy process to generate electricity, for consumer provides clean energy resource.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model method; can also make some improvement and supplement, these improve and supplement and also should be considered as protection domain of the present utility model.
Claims (4)
1. a vertical-axis tide energy electricity generating device, is characterized in that, described electricity generating device comprises the first pedestal, the second pedestal, generator, upper impeller, lower impeller; Described generator comprises rotor and stator; Described rotor and the coaxial counterrotating of stator; Described rotor is assemblied on the first rotatingshaft; First described rotatingshaft one end is connected with generator, and the other end is connected with upper impeller; The other end of described upper impeller is connected with the first pedestal by connection set; Described generator lower end connects the second rotatingshaft, and second described rotatingshaft one end is connected with stator, and the other end is connected with lower impeller; The described lower impeller the other end is connected with the second pedestal by connection set; Described upper impeller is identical with lower blade wheel structure shape, and upper impeller and lower impeller coaxial line are installed, and wherein go up impeller contrary with lower impeller installation direction; Described upper impeller and lower impeller are SAVONIUS type blade; Described blade comprises concave-blade and convex surface blade, and wherein the overlap ratio S/D of concave-blade and convex surface blade is fixed as 0.2; Described concave-blade and convex surface blade are Integratively formed; Described concave-blade and convex surface smooth blade surface; The concave-blade of described upper impeller is corresponding with the convex surface blade of lower impeller, and the convex surface blade of upper impeller is corresponding with the concave-blade of lower impeller.
2. electricity generating device according to claim 1, is characterized in that, the number of blade of described upper impeller and lower impeller is 2.
3. electricity generating device according to claim 1, is characterized in that, described electricity generating device also comprises anchor chain fixing frame, bearing supporting frame; Fix riveted joint between described first pedestal and the second pedestal and have 4 anchor chain fixing frames, described anchor chain fixing frame connection bearing support; Described bearing bracket is fixedly connected with the outer wall of bearing; Described bearing inner wall is fixedly connected with generator by screw.
4. electricity generating device according to claim 3, is characterized in that, the quantity of described electricity generating device is at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420788027.7U CN204327392U (en) | 2014-12-12 | 2014-12-12 | A kind of vertical-axis tide energy electricity generating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420788027.7U CN204327392U (en) | 2014-12-12 | 2014-12-12 | A kind of vertical-axis tide energy electricity generating device |
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| CN204327392U true CN204327392U (en) | 2015-05-13 |
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| CN201420788027.7U Expired - Fee Related CN204327392U (en) | 2014-12-12 | 2014-12-12 | A kind of vertical-axis tide energy electricity generating device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612045A (en) * | 2015-10-27 | 2017-05-03 | 黄国彰 | Flow force power generation device |
| CN107542626A (en) * | 2017-09-04 | 2018-01-05 | 中国华能集团清洁能源技术研究院有限公司 | A kind of offshore wind farm and perpendicular axis type marine tidal-current energy combined power generation device |
-
2014
- 2014-12-12 CN CN201420788027.7U patent/CN204327392U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612045A (en) * | 2015-10-27 | 2017-05-03 | 黄国彰 | Flow force power generation device |
| CN107542626A (en) * | 2017-09-04 | 2018-01-05 | 中国华能集团清洁能源技术研究院有限公司 | A kind of offshore wind farm and perpendicular axis type marine tidal-current energy combined power generation device |
| CN107542626B (en) * | 2017-09-04 | 2024-01-09 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wind power and vertical shaft type tidal current energy combined power generation device |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20151212 |
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| EXPY | Termination of patent right or utility model |