CN201705537U - High-efficiency sea wave power generating device - Google Patents
High-efficiency sea wave power generating device Download PDFInfo
- Publication number
- CN201705537U CN201705537U CN201020218500XU CN201020218500U CN201705537U CN 201705537 U CN201705537 U CN 201705537U CN 201020218500X U CN201020218500X U CN 201020218500XU CN 201020218500 U CN201020218500 U CN 201020218500U CN 201705537 U CN201705537 U CN 201705537U
- Authority
- CN
- China
- Prior art keywords
- wave power
- staving
- generating device
- impeller
- efficiency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
Abstract
The utility model relates to power generators, in particular to a high-efficiency sea wave power generating device, which is characterized by being provided with a bucket with a bottom. A through hole is arranged at the bottom of the bucket, an impeller is arranged inside the through hole, an impeller shaft is connected with a shaft of a generator, and the generator is connected with a drum via a support. When in use, the high-efficiency sea wave power generating device can be fixed by a shore or connected with seabed via a rigid piece, and can also be fixed onto large-sized sea surface floaters rigidly connected. The high-efficiency sea wave power generating device not only can absorb surface energy of sea waves, but also absorbs potential energy of the sea waves, thereby having extremely high energy conversion efficiency.
Description
Technical field
The utility model relates to electricity generating device, particularly a kind of efficient Wave power generation device.
Background technique
ManyInstitute is known, seawave power generation is extremely promising generation mode in new energy field, therefore, all also drop in a large number in active research countries in the world,, though proposed a lot of Wave power generation devices, but its effect is all unsatisfactory, we can say, up to now, really do not develop Wave power generation device with practical value as yet.
At present, being called as the Wave power generation device that approaches practicality most is Japanese " hamming " number generating ship, and what its adopted is the design of air turbine formula.This design makes moving up and down of wave convert flowing of air to, generates electricity by its wheel rotor.But in fact this design is very irrational, because the density of air is more than one percent of density of sea water, thereby loses a lot of energy, and promptly efficient is very low.Improve this device generated energy, very big volume must be arranged, but this requires very big wave again, and the frequency of occurrences of billow is not very high, and breaking property is very strong.In a word, the design of air turbine formula is not develop future.
Find out from above, raise the efficiency, must make directly acquisition energy from the flowing of seawater of impeller.We imagine the simplest a kind of sea water generator, and it is made up of the cylindrical shell of two sides opening and the impeller of staving bottom and the generator that is attached thereto.When wave moved downward, seawater made generator for electricity generation by impeller.But, can draw by calculating, the maximum generating watt of this Wave power generation device equals the energy on wave surface just.Change in short, this device only absorbs the energy on wave surface, the potential energy that does not absorb wave and had.Why be understood that the poor like this reason of this Wave power generation device generating efficiency like this.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of efficient Wave power generation device simple in structure is provided.
The utility model can reach by following measure:
A kind of efficient Wave power generation device is characterized in that being provided with the band staving at the end, is provided with through hole at the bottom of the staving, is provided with impeller in the through hole, and impeller shaft is connected with generator shaft, and generator is connected with cylindrical shell through support.
The relation of via area in the utility model at the bottom of the staving and staving cross sectional area is: the via area at the bottom of the staving≤0.95 staving base area, so that the flow velocity of through hole maritime interior waters is higher than wave Surface Vertical direction speed, thereby improve the total energy of the fluid of through-hole section, improve generating efficiency.
Wall thickness in the utility model at the bottom of the staving is not less than blades height in the impeller, be in the outside of through hole and cause that the mean velocity of the fluid by blade descends with a part of avoiding blade, generating efficiency descends, and the wall thickness at the bottom of the staving can think that just the wall at all places, through hole limit is thickeied.
When the utility model uses, can be fixed on the bank or connect with the seabed, can also be fixed on the large marine buoyancy aid that rigid body connects, can not only absorb the surface energy of wave, also absorb the potential energy of wave, therefore very high energy conversion efficiency is arranged by rigid body.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described:
As shown in drawings, a kind of efficient Wave power generation device, it is characterized in that being provided with the band staving 1 at the end, staving 1 is generally rounded, also can present square or other shape, 2 are provided with through hole at the bottom of the staving, be provided with impeller 3 in the through hole, the axle of impeller 3 is connected with the input shaft of generator 4, generator 4 is connected with cylindrical shell 1 through support 5, in the utility model at the bottom of the staving relation of 2 via area and staving base area be: the via area at the bottom of the staving≤0.95 staving base area so that the flow velocity of through hole maritime interior waters is higher than wave Surface Vertical direction speed, thereby improve the total energy of the fluid of through-hole section, improve generating efficiency.
In the utility model at the bottom of the staving 2 wall thickness 6 be not less than blades height 7 in the impeller 3, as shown in the figure, be in the outside of through hole and cause that the mean velocity of the fluid by blade descends with a part of avoiding blade, generating efficiency descends, and the wall thickness at the bottom of the staving can think that just the wall at all places, through hole limit is thickeied.
When the utility model uses, can be fixed on the bank or connect with the seabed by rigid body, can also be fixed on the large marine buoyancy aid of rigid body connection, can not only absorb the surface energy of wave, also absorb the potential energy of wave, therefore very high energy conversion efficiency is arranged, suppose that the average unrestrained height of the wave in this marine site is 1m, be 6 seconds average period.The electricity generating device that we adopt is: diameter is 60cm, and length is the staving of 1.5m, and the circular hole that diameter is 30cm is opened in its bottom, is provided with impeller in the circular hole, the impeller generator of ining succession.Place the large size buoyancy aid that connects with rigid body again across the sea, several electricity generating devices are fixed on the buoyancy aid, form sea wave power generation system by latticed form.
Because when rigidity buoyancy aid area was very big, it was almost static with respect to the seabed.So electricity generating device also is static on it.When there was wave on the sea, seawater moved up and down with respect to electricity generating device and causes seawater to pass through impeller, makes generator for electricity generation.
If establishing the energy conversion efficiency of impeller is 0.5, the average generated output of single this electricity generating device is 47w, is equivalent to obtain in every square metre of wave the electric energy of 166w, and every square metre of per day generated energy reached about 4000 watts hours.Exceed 10 times than solar electrical energy generation.
Claims (3)
1. an efficient Wave power generation device is characterized in that being provided with the band staving at the end, is provided with through hole at the bottom of the staving, is provided with impeller in the through hole, and impeller shaft is connected with generator shaft, and generator is connected with cylindrical shell through support.
2. a kind of efficient Wave power generation device according to claim 1 is characterized in that the via area at the bottom of the staving and the relation of staving cross sectional area are: the via area at the bottom of the staving≤0.95 staving cross sectional area.
3. a kind of efficient Wave power generation device according to claim 1 is characterized in that the wall thickness at the bottom of the staving is not less than blades height in the impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020218500XU CN201705537U (en) | 2010-06-08 | 2010-06-08 | High-efficiency sea wave power generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020218500XU CN201705537U (en) | 2010-06-08 | 2010-06-08 | High-efficiency sea wave power generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705537U true CN201705537U (en) | 2011-01-12 |
Family
ID=43442692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020218500XU Expired - Fee Related CN201705537U (en) | 2010-06-08 | 2010-06-08 | High-efficiency sea wave power generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705537U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953921A (en) * | 2011-08-25 | 2013-03-06 | 陈文彬 | Water turbine type sea wave power generation equipment |
| CN104612890A (en) * | 2014-12-11 | 2015-05-13 | 北京维信诺光电技术有限公司 | Sea wave generator |
| CN110513239A (en) * | 2019-08-06 | 2019-11-29 | 西北工业大学 | A kind of oceanographic buoy self-power supply device based on wave-activated power generation |
-
2010
- 2010-06-08 CN CN201020218500XU patent/CN201705537U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953921A (en) * | 2011-08-25 | 2013-03-06 | 陈文彬 | Water turbine type sea wave power generation equipment |
| CN104612890A (en) * | 2014-12-11 | 2015-05-13 | 北京维信诺光电技术有限公司 | Sea wave generator |
| CN110513239A (en) * | 2019-08-06 | 2019-11-29 | 西北工业大学 | A kind of oceanographic buoy self-power supply device based on wave-activated power generation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20110608 |