CN85108806A - Apparatus for generating electricity by wave force - Google Patents
Apparatus for generating electricity by wave force Download PDFInfo
- Publication number
- CN85108806A CN85108806A CN85108806.6A CN85108806A CN85108806A CN 85108806 A CN85108806 A CN 85108806A CN 85108806 A CN85108806 A CN 85108806A CN 85108806 A CN85108806 A CN 85108806A
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- CN
- China
- Prior art keywords
- air
- turbine
- blade
- generating electricity
- wave
- 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.)
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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
About utilizing the air turbine of wave-energy power generation, the blade pitgh t of its worm gear is set at 0.9＜t/l＜1.5 with the ratio (t/l) of wing chord length l, and blade angle r is set at 105 degree＜r＜135 degree and forms.
Description
The present invention relates to the air turbine electricity generating device that utilizes wave-energy power generation.
The apparatus for generating electricity by wave force of air turbine formula is Floating shown in the 5th figure, and it is that the lower end that is suspended in device body waterborne 1 is made air chamber 2 to the water split shed, and above air chamber 2, is provided with power compartment 3.In the inside of the device body 1 that only is communicated with atmosphere with atmosphere opening 7, establish the casing 3C of an airtight construction again.Two sides up and down at air turbine are provided with air gateway 3a, 3b.On the 3a sidewall of air gateway, the valve of only opening to power compartment 3 inboards 5 and 9 is housed, on the 3b sidewall of air gateway, be provided with the valve of only opening laterally 6 and 10.In power compartment 3, be provided with turbine nozzle 11 into mouth down, on the top of turbine nozzle 11, face on the orientation of mouth down, the one section action turbine blade 12 perpendicular with impeller 15 axis is housed.Its inlet side is provided with downwards, the generator of installing with axis normal 13 directly is connected with turbo machine 16, and be installed in the top of turbo machine 16.Turbine nozzle 11 above valve 5 and valve 9, and makes the upper end of the shell 14 of turbo machine 16 be positioned at the below of valve 6 and valve 10.
In such apparatus for generating electricity by wave force, because the motion of wave, the volume of air chamber 2 changes.Along with the variation of air chamber volume, the turnover motion takes place in air.When the volume of the air chamber on the water surface top of air chamber 2 diminished, then the pressure of air chamber rose, thereby air flows to air flow path 4, causes the pressure in the air flow path 4 to rise.Because the pressure in the air flow path 4 rises, and valve 5 is opened, valve 6 is closed.Air flows into power compartment 3 from air flow path 4 by valve 5, and the pressure of power compartment is risen.Because the pressure of power compartment 3 rises, and just valve 9 is closed.The pressure of the air gateway 3a of power compartment 3 is risen, and the result flows through turbine nozzle 11 from air, through turbine blade 12, flows to the air gateway 3b of power compartment 3.The pressure of the air gateway 3b of power compartment 3 is risen, thereby valve 10 is opened, air is via open to atmosphere air flow path 8, again through atmosphere liberation port 7 to airborne release.During drop in water surface in the air chamber 2, make air chamber become negative pressure, then air through atmosphere liberation port 7 valve 9 is opened, again from gateway 3a by turbine flow to gateway 3b, valve 6 is opened, flow into air chamber 2.
Adopt the air turbine formula apparatus for generating electricity by wave force of this mode, because when the irregular wave energy in the air chamber that acts on device body 1 of the motion of wave is converted to electric energy, along with the air chamber water surface moves up and down brokenly, in air chamber, form malleation or negative pressure, present sinusoidal wave characteristic haply.Utilize the pressure difference of this air,, air is flowed along certain direction,, act on the blade 12, generator is rotated through turbine nozzle 11 by the effect of valve 5 and 10 and 6 and 9.Because the air inflow velocity of turbine inlet is from 0 being continually varying to Peak Flow Rate Cmax, the motion of turbine blade 12 is change thereupon also.To this operating condition of turbo machine 16, can be partitioned into and be subjected to time that air can act on and the time in the idle running.No matter be, all require to reduce loss for any time.Turbo machine 16 in the past is that blade angle r is decided to be 95 degree, and the ratio (t/l) of the installing space t of blade and wing chord length l is decided to be 0.66, loss can not be reduced to minimum level like this, the efficiency eta of the full working field of turbo machine is 50%, still fails to obtain very high numerical value.This is the problem that exists in the past.
The objective of the invention is to selected suitable blade angle and blade installation spacing and wing chord length ratio,, provide the apparatus for generating electricity by wave force that can solve above-mentioned problem owing to draw such air turbine.
The present invention is as the means that solve above-mentioned problem, when making apparatus for generating electricity by wave force, the ratio (t/l) of the installing space t of turbine blade and wing chord length l is taken at 0.9＜t/l＜1.5, and with blade angle.R is taken at 105 degree＜r＜135 degree, constitutes apparatus for generating electricity by wave force.
Below with the embodiment shown in scheming the present invention is illustrated.
Shown in the 1st figure, be the leaf floor map of the turbine blade of design according to the present invention design.
Shown in the 2nd figure, be the turbo machine front view of design design according to the present invention.
Shown in the 3rd figure, be the turbine sectional arrangement drawing of design design according to the present invention.
Shown in the 4th figure, be the correlation curve of design according to the present invention turbine efficiency that designs and the turbine efficiency of passing by.
Shown in the 5th figure, be air turbine formula hydroelectric wave generator schematic representation.
Shown in the 1st to the 4th figure, diameter is outwards installed multi-disc turbine blade 12 in the periphery upper edge of impeller 15, the mounting distance t of its blade is taken as 33.379 millimeters, the wing chord length l is 28 millimeters, blade installation spacing t is about 1.2 with the ratio (t/l) of wing chord length l, and blade angle is taken as 115 degree.
When adopting such turbine blade 12, shown in the 4th figure, efficiency eta can reach shown in the A point about 60%.Therefore the efficient with the turbo machine 16 in past compares at 50% left and right sides B point, and efficiency eta has approximately improved 10%.And as blade installation spacing t is changed into 0.9≤t/l≤1.5 with the ratio (t/l) of wing chord length l, when blade angle r changes into 95 degree≤r≤135 and spends, compare with the A point in the foregoing description, then efficient descends to some extent.
Compare with the turbine in past like this, owing to efficient makes moderate progress, thereby can make wave energy more effectively be converted to electric energy, thereby can cut down in a large number cost. For example needs writings service charge is used for changing the labour cost of beacon light on navigation mark, buoy or the isolated island of battery.
As previously discussed the present invention is by improving the ratio (t/l) of blades installation spacing t and wing chord length l, reduce air and can do the loss of time spent, by improving blade angle r, loss when reducing idle running, thereby improve the efficient of turbine in full working field, improved the transformation efficient that wave energy changes electric energy into.
Claims (1)
- The air turbine of an apparatus for generating electricity by wave force, the ratio (t/1) that it is characterized by the installing space t of the turbine blade of described air turbine and wing chord length 1 is set at 0.9＜t/1＜1.5, and blade angle r is set at 105 degree＜r＜135 and spends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85108806A CN1006486B (en) | 1985-11-30 | 1985-11-30 | Apparatus for generating electricity by wave force |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12736/85 | 1985-01-31 | ||
| CN85108806A CN1006486B (en) | 1985-11-30 | 1985-11-30 | Apparatus for generating electricity by wave force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85108806A true CN85108806A (en) | 1987-03-04 |
| CN1006486B CN1006486B (en) | 1990-01-17 |
Family
ID=4796152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85108806A Expired CN1006486B (en) | 1985-11-30 | 1985-11-30 | Apparatus for generating electricity by wave force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1006486B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962944A (en) * | 2010-09-21 | 2011-02-02 | 天津大学 | Cylindrical foundation breakwater with wave power generating function |
| CN103348129A (en) * | 2010-10-22 | 2013-10-09 | 海洋能源技术有限公司 | Turbine rotor assembly |
| CN103967696A (en) * | 2014-03-10 | 2014-08-06 | 韩佳 | Wave power generation device |
| CN104594286A (en) * | 2015-01-20 | 2015-05-06 | 长沙理工大学 | Floating breakwater doubling as wave power generation device |
| CN106837674A (en) * | 2017-01-20 | 2017-06-13 | 浙江海洋大学东海科学技术学院 | A kind of multi-energies hybrid power generating system |
| CN110121592A (en) * | 2017-01-26 | 2019-08-13 | 韩国海洋科学技术院 | Utilize the oscillaton water column type wave energy generating set of breakwater |
-
1985
- 1985-11-30 CN CN85108806A patent/CN1006486B/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962944A (en) * | 2010-09-21 | 2011-02-02 | 天津大学 | Cylindrical foundation breakwater with wave power generating function |
| CN103348129A (en) * | 2010-10-22 | 2013-10-09 | 海洋能源技术有限公司 | Turbine rotor assembly |
| US9279333B2 (en) | 2010-10-22 | 2016-03-08 | Wave Power Renewables Limited | Turbine rotor assembly |
| CN103967696A (en) * | 2014-03-10 | 2014-08-06 | 韩佳 | Wave power generation device |
| CN104594286A (en) * | 2015-01-20 | 2015-05-06 | 长沙理工大学 | Floating breakwater doubling as wave power generation device |
| CN106837674A (en) * | 2017-01-20 | 2017-06-13 | 浙江海洋大学东海科学技术学院 | A kind of multi-energies hybrid power generating system |
| CN110121592A (en) * | 2017-01-26 | 2019-08-13 | 韩国海洋科学技术院 | Utilize the oscillaton water column type wave energy generating set of breakwater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1006486B (en) | 1990-01-17 |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| C14 | Grant of patent or utility model | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |