CN204827778U - Efficiency of wave electricity generation is improved device - Google Patents
Efficiency of wave electricity generation is improved device Download PDFInfo
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- CN204827778U CN204827778U CN201520625399.2U CN201520625399U CN204827778U CN 204827778 U CN204827778 U CN 204827778U CN 201520625399 U CN201520625399 U CN 201520625399U CN 204827778 U CN204827778 U CN 204827778U
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- 238000010248 power generation Methods 0.000 claims abstract description 42
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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 discloses an efficiency of wave electricity generation is improved device, the device includes wave energy gathering device and wave energy collection conversion equipment, wave energy gathering device is including a plurality of according to the periodic crest cylinder of arranging, prague resonance reflection through wave energy gathering device because of taking place for the incident wave, form the vertical wave district in its side of heading sea, the wave energy is collected conversion equipment and is included the fixed bolster, metal decking and wave energy power generation facility, the fixed bolster sets up in the vertical wave is distinguished, the metal decking welding is on the fixed bolster, the mobilizable setting of wave energy power generation facility is on the metal decking. The utility model provides an efficiency of wave electricity generation is improved device passes through fixed platform fixed position with wave energy power generation facility, through laying periodic crest cylinder, and makes the incident wave take place prague resonance, with the wave energy gathering at location to improve wave energy power generation facility's generating efficiency.
Description
Technical field
The utility model relates to the technical field developing regenerable marine energy, particularly a kind of device improving wave-activated power generation efficiency based on Prague resonance principle.
Background technique
Ocean is covered with the surface of the earth 70 percent, contains infinite energy, it is estimated that its energy summation greatly exceed the demand of current global energy.Wave energy is included, tidal energy, thermal gradient energy, salt error energy and energy by ocean current etc. in ocean energy development technique field.
Wave energy refers to the kinetic energy that ocean surface wave has and potential energy.Present stage, there is a large amount of technology utilizing wave-energy power generation, cardinal principle is, by wave energy apparatus, first wave energy is converted into mechanical energy, and then is converted into electric energy.But wave energy is a kind of energy that in marine energy, energy is least stable, and generating efficiency is lower.
The conversion of usual wave energy generally has three grades.The first order is the collection of wave energy, usually adopts poly-ripple and resonance two kinds of methods that the wave energy of dispersion is gathered together.The second level is the transmission of energy, comprises mechanical transmission, low pressure transmission, high-pressure and hydraulic transmission, pneumatic gearing, makes wave energy be converted to utilizable mechanical energy.The third level is converted to final conversion, and mechanical energy is converted to electric energy by generator.Wave-activated power generation is as the classical mode utilized regenerable marine energy, present stage mainly all concentrates on the mechanical device design level how effectively promoting that energy transport and conversion efficiency of wave energy collecting apparatus etc. is concrete to the concern of wave-activated power generation, and ignore the most basic, such as how to increase the problem of the aspects such as wave-activated power generation marine site wave height.
Prague resonance refers to when wave is through periodic undulations landform in Wave Theory, and the wavelength of rolling topography is when being the integral multiple of incoming wave wavelength half, resonance can be produced, therefore Wave energy is reflected, cause the big ups and downs of top, the morphologic region water surface, and form large-scale vertical wave, increase the wave height value of this intra-zone point position.
All there is large-area bed ripples group in the offshore sea waters such as the Nan Gang navigation channel of current China entrance of Changjiang River and Neilingding Island the north of the mouth of the Zhujiang River, so have the natural condition more generally causing Prague resonance effect in actual coastal environment, therefore need to study further this part.
Model utility content
In order to solve the deficiencies in the prior art, the utility model provides a kind of device improving wave-activated power generation efficiency, this apparatus structure is simple, cost is low and flexible and convenient to use, to the wave energy generating set on sea be swum in by fixed platform fixed position, by laying periodically crest cylinder, and making incident wave that Prague resonance occur, Wave energy is gathered in location, thus improves the generating efficiency of wave energy generating set.
For solving the problem, the utility model specifically by the following technical solutions:
A kind of device improving wave-activated power generation efficiency, it is characterized in that, comprise wave energy aggregation apparatus and wave energy collection and conversion device, described wave energy aggregation apparatus includes several crest cylinders periodically arranged, incident wave reflects because there is Prague resonance through wave energy aggregation apparatus, vertical wave district is formed in its side of heading sea, described wave energy collection and conversion device comprises fixed support, metal surface and wave energy generating set, described fixed support is arranged in vertical wave district, described metal surface is welded on fixed support, described wave energy generating set is movably arranged on metal surface.
Aforesaid a kind of device improving wave-activated power generation efficiency, it is characterized in that, described wave energy generating set includes wave energy generating set stator, metal link rod and wave energy generating set float, namely this wave energy generating set is oscillating float type wave energy generating set, described wave energy generating set movable stator be arranged on metal surface, described metal link rod is vertically connected through wave energy generating set stator with the wave energy generating set float below it, and namely described wave energy generating set float is connected to metal link rod lower end.
Aforesaid a kind of device improving wave-activated power generation efficiency, is characterized in that, described metal link rod is arranged on wave energy generating set stator center place.
Aforesaid a kind of device improving wave-activated power generation efficiency, is characterized in that, described wave energy generating set float is up big and down small Rotary-table.
Aforesaid a kind of device improving wave-activated power generation efficiency, it is characterized in that, described metal surface is provided with one along wave propagation direction and wears mouth, described both sides of wearing mouth are provided with along wearing mouthful side the screw equidistantly distributed, described screw is provided with suitable screw, certainly, fix for the ease of screw, wave energy generating set stator is also provided with corresponding screw, after wave energy generating set stator is adjusted to correct position along Chuan Kou, utilize the screw of screw simultaneously on penetrating wave wave energy generating set stator and metal surface, thus wave energy generating set stator is fixed on metal surface.By the position regulation of wave energy generating set stator on metal surface, thus adjustment wave energy generating set position, make wave energy generating set float center just in time be positioned at vertical wave antinode place, generating efficiency is maximized.In addition, oscillating float type wave energy generating set can be arranged in bed ripples group surrounding waters, by Plant arrangement at resonance zone antinode place, sea, wave-energy power generation efficiency can be significantly improved.
Aforesaid a kind of device improving wave-activated power generation efficiency, it is characterized in that, described wave energy aggregation apparatus is made up of at least 2 pieces of crest cylinders, the wavelength of described crest cylinder is the integral multiple of incident wave wavelength half, distance between the wavelength of this crest cylinder that is two crest cylinder peaks, the periodic undulations extension direction of described wave energy aggregation apparatus is consistent with incident wave direction, preferably, the spacing of every two crest cylinders is the half of crest cylinder wavelength, and the distance namely between adjacent peaks cylinder is the half of crest cylinder wavelength.
Aforesaid a kind of device improving wave-activated power generation efficiency, is characterized in that, described crest cylinder is made up of concrete.
Aforesaid a kind of device improving wave-activated power generation efficiency, is characterized in that, described crest cylinder is set to 5 pieces.
The beneficial effects of the utility model: a kind of device improving wave-activated power generation efficiency that the utility model provides, make, by the incident wave on wave energy aggregation apparatus top, Prague resonance occurs, increase the wave height of part area, sea, wave energy collection and conversion device is fixed on wave height difference biggest place, thus improves the generating efficiency of wave energy generating set.This device not only can be used to stablize, generate electricity constantly, and the simple cost of structure is low, does not affect marine site view.
Because Prague the most significantly phenomenon that the water body resonance that causes embodies that resonates is exactly the sharply increase of water level fluctuation amplitude, so played the effect of energy accumulation to the wave of extra large side to periodic undulations landform by Prague resonance, thus increase the wave height in target marine site, therefore, the application can make up the deficiencies in the prior art effectively, improves its generating efficiency from the angle improving the collectable wave energy of device.
Accompanying drawing explanation
Fig. 1 is the structural representation of the device improving wave-activated power generation efficiency in the utility model example 1;
Fig. 2 is experimental setup side view in the sink in the utility model example 1;
Fig. 3 is experimental setup plan view in the sink in the utility model example 1;
Fig. 4 be the tank depth of water be 0.6m, incident wave period for normal power generation during 1.05s with run the utility model device generate electricity measured by instantaneous voltage comparison diagram, wherein the instantaneous voltage figure that records for normal power generation of Fig. 4 (a), Fig. 4 (b) run the instantaneous voltage figure that the utility model device records;
Fig. 5 is 0.7m in the tank depth of water, the incoming wave cycle for normal power generation during 1.05s with run the utility model device generate electricity measured by instantaneous voltage comparison diagram, wherein the instantaneous voltage figure that records for normal power generation of Fig. 5 (a), Fig. 5 (b) run the instantaneous voltage figure that the utility model device records.
In figure, 1-crest cylinder, 2-fixed support, 3-wave energy generating set float, 4-metal surface, 5-wave energy generating set stator, 6-metal link rod, 7-screw, 8-wear mouth, 9-oscillograph, 10-wave energy aggregation apparatus, 11-wave energy collection and conversion device.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is further described.
Embodiment 1:
As shown in Figure 1 to Figure 3, a kind of device improving wave-activated power generation efficiency, comprises a wave energy aggregation apparatus 10 and a wave energy collection and conversion device 11.Wave energy aggregation apparatus 10 is periodically rearranged by 5 semisinusoidal crest cylinders 1, the wavelength of crest cylinder 1 is regular incident ripples wavelength half, the periodic undulations extension direction of wave energy aggregation apparatus 10 is consistent with incident wave direction, the spacing of every two crest cylinders 1 is the half of crest cylinder 1 wavelength, incident wave reflects because there is Prague resonance through wave energy aggregation apparatus 10, and forms vertical wave district in its side of heading sea.Wave energy collection and conversion device 11 comprises fixed support 2, metal surface 4, wave energy generating set stator 5, metal link rod 6, wave energy generating set float 3, described fixed support 2 is arranged in vertical wave region, described metal surface 4 is welded on fixed support 2, described wave energy generating set stator 5 moves on metal surface 4 by wearing mouth 8, vertical wave antinode place is just in time positioned to wave energy generating set float 3 center, wave energy generating set stator 5 is fixed with coordinating of screw by screw 7, described metal link rod 6 is arranged on wave energy generating set stator 5 center, described wave energy generating set float 3 is connected to metal link rod 6 lower end, also be provided with oscillograph 9, described oscillograph 9 is connected on wave energy generating set stator 5, for measuring the actual power data of generator.
The flume experiment device instrument of the raising wave-energy power generation efficiency that the utility model resonates based on Prague and physical dimension as follows:
1. tank length × wide × height=60m × 1m × 1.5m;
2. wave energy aggregation apparatus 10 is made up of the concrete semisinusoidal crest cylinder of 5 wavelength × wave height=0.75m × 0.24m, and the spacing of every two crest cylinders is 0.375m, and the length L of crest cylinder is 0.6m;
3. wave energy generating set stator 5 linear permanent-magnet generator of selecting Southeast China University to research and develop, refers to patent CN200920037744.5;
4. wave energy generating set float 3 is up big and down small Rotary-table, end face diameter 0.6m, high 0.45m, basal diameter 0.4m;
5. wave energy generating set stator 5 four edges are provided with screw for fixing;
6. metal surface 4 length × wide=1m × 0.65m, the rectangular that metal surface 4 plate heartcut goes out to be of a size of length × wide=0.9m × 0.15m wears mouth 8 for regulating wave energy generating set position, every 0.03m, substantially horizontal arranges that 1 screw 7 is fixed for wave energy generating set stator 5, every limit has 31 holes, as shown in Figure 3; Fixed support 2 is the Deformed Steel Bars of four diameter × length=0.012m × 1.4m, is welded on metal surface four edges, and soldering point is 0.02m apart from metal surface side;
7. metal link rod 6 diameters × length=0.08m × 0.6m;
8. platform is arranged in 1.5m place, continuous sinusoidal landform front, and namely wave energy collection and conversion device 11 is arranged in 1.5m place, wave energy aggregation apparatus 10 front;
9. oscillograph 9 selects model to be the magnificent electric ZH-103 generator monitoring of middle unit and characteristic tester.
The working procedure of above-mentioned flume experiment device is as follows:
1. fetch water groove depth of water 0.6m, regular incident ripples wave height 0.08m, adjusts incident wave period, makes the wavelength of crest cylinder be the half of regular incident ripples wavelength just.Under the condition of embodiment 1, incident wave period selects 1.05 seconds.Wave is after wave energy aggregation apparatus, and most of energy will be reflected, and wave energy aggregation apparatus head sea direction produce vertical wave district;
2. regulate the position of wave energy generating set on metal surface, make wave energy generating set float just at the antinode place in vertical wave district, wave height difference is maximum herein, and generated output is also maximum;
3. be converted to mechanical energy after the oscillating float type wave energy generating set that wave energy generating set float and wave energy generating set stator form collects wave energy to generate electricity;
4. use oscillograph to measure the instantaneous voltage of oscillating float type wave energy generating set;
5. only place oscillating float type wave energy generator, under identical element of wave and resistance, measure its instantaneous voltage, contrast with the instantaneous voltage of the utility model device;
6. the tank depth of water is added to 0.7m, regular incident ripples wave height is set to 0.08m, and the cycle is 1.05s, repeats said process 2-5 and tests;
7. the test data pair is analyzed, result is as Fig. 4 and Fig. 5: as can be seen from Figure 4, when the depth of water is 0.6m and in circuit, resistance is identical, obviously increase when running the instantaneous voltage compared with normal generating of wave energy generating set during this device, amplification is close to 100%, and generating efficiency is corresponding lifting also; As can be seen from Figure 5, when the depth of water be 0.7m and in circuit, resistance is identical when, the instantaneous voltage compared with normal generating running wave energy generating set during this device also has increase, amplification about 50%, generating efficiency also has lifting, therefore known, the device that the utility model provides can effectively improve wave-energy power generation efficiency.In addition, Fig. 5 is known for comparison diagram 4, constant in crest cylinder sizes, when element of wave only changes the depth of water, high when when the depth of water is 0.6m, generating efficiency is obviously 0.7m than the depth of water, so the wave height D of crest cylinder and depth of water h ratio should not be too little, otherwise the raising of generating efficiency can be affected.
As the impact of different element of wave on this device generating efficiency need be studied, then only need change element of wave initial conditions in said process 1, and then carry out testing according to said process 2 ~ 5.
More than show and describe basic principle of the present utility model, major character and advantage.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (8)
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| CN201520625399.2U CN204827778U (en) | 2015-08-18 | 2015-08-18 | Efficiency of wave electricity generation is improved device |
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| CN201520625399.2U CN204827778U (en) | 2015-08-18 | 2015-08-18 | Efficiency of wave electricity generation is improved device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114236A (en) * | 2015-08-18 | 2015-12-02 | 河海大学 | Device for improving efficiency of wave power generation and manufacture method of device |
| CN112145335A (en) * | 2020-10-13 | 2020-12-29 | 李明山 | Wave energy collecting system for power generation and working method thereof |
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2015
- 2015-08-18 CN CN201520625399.2U patent/CN204827778U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114236A (en) * | 2015-08-18 | 2015-12-02 | 河海大学 | Device for improving efficiency of wave power generation and manufacture method of device |
| WO2017028607A1 (en) * | 2015-08-18 | 2017-02-23 | 河海大学 | Device for increasing efficiency of wave power generation and manufacturing method thereof |
| CN105114236B (en) * | 2015-08-18 | 2017-07-11 | 河海大学 | A kind of device for improving wave-activated power generation efficiency and preparation method thereof |
| CN112145335A (en) * | 2020-10-13 | 2020-12-29 | 李明山 | Wave energy collecting system for power generation and working method thereof |
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Granted publication date: 20151202 Termination date: 20180818 |
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| CF01 | Termination of patent right due to non-payment of annual fee |