CN103850862B - Multi-freedom degree wave energy absorbing device - Google Patents
Multi-freedom degree wave energy absorbing device Download PDFInfo
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- CN103850862B CN103850862B CN201410079214.2A CN201410079214A CN103850862B CN 103850862 B CN103850862 B CN 103850862B CN 201410079214 A CN201410079214 A CN 201410079214A CN 103850862 B CN103850862 B CN 103850862B
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- oil hydraulic
- float
- piston
- support
- rotary actuation
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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 invention belongs to wave power generation field, relate to a kind of multi-freedom degree wave energy absorbing device, comprise support (6), fixed base (8) and two floats (2), two floats (2) are connected on support (6) by support beam (1), support (6) is connected with fixed base (8), fixed base is provided with an oil hydraulic cylinder (24), its moving piston (28) is connected on the cylinder body of oil hydraulic cylinder (24) by spring (25), moving piston (28) is connected on support (6) by piston actuated bar (7), each float (2) comprises shell, inner carriage (15), rotary actuation bar (3) and No. two oil hydraulic cylinders (14), No. two oil hydraulic cylinders (14) comprise cylinder body, be fixed on the running shaft (20) on rotary actuation bar (3), oil hydraulic cylinder inside is Ring-cylindrical cavity (23), in Ring-cylindrical cavity (23), be filled with high pressure oil, be respectively arranged with baffle plate (22) and moving piston (21) at the different parts of Ring-cylindrical cavity (23).The present invention fully can absorb the energy of wave energy absorption device input place wave, and stability is high.
Description
Art
The invention belongs to wave power generation field, be specifically related to a kind of wave energy absorbing device.
Background technique
Because the day by day exhausted of the non-renewable energy resources such as global fossil energy and environmental pollution aggravate increasingly, effectively utilize clean, that the reproducible energy becomes the main coastal state in world energy strategy important selection.China has 18, and the shore line of km more than 000, according to calculating, if the ocean energy that will be possible to use is converted into electric energy, about electric power that can provide 1.5 hundred million kW, the twice being equivalent to the current electric motor power of China is many, therefore develops national conditions and needs that wave-activated power generation technology adapts to China." 12 " are the important period that China's ocean industry is accelerated development, and are also to promote to optimize economic structure key period of upgrading, Economic Development Mode Conversion.We should closely follow the paces of the revolution of new round world technology and energy revolution, with high-end technology, high-end product, high-end industry for leading, improve the core competitiveness that regenerable marine energy develops, by optimizing China's production of energy and consumption structure, support the sustainable development of national economy and the whole society.Wave-energy power generation technology is by wave energy absorbing device, first wave energy is converted to mechanical energy, then converts electric energy to.China successfully have developed the wave-type electric generator such as oscillaton water column type and poly-ripple reservoir formula, and some wave-activated power generation technology even reach advanced international standard.But above-mentioned existing device Wave energy absorption plant part is generally only caught the energy in the some moving direction of wave energy absorption device, or move up and down, or horizontal motion, or pitching, or rolling etc., wave energy utilization ratio is not high.
Summary of the invention
The present invention is directed to above problem, provide a kind of wave energy absorbing device, this device, by fairly simple structure and parts, fully absorbs the energy of wave energy absorption device input wave from multiple degrees of freedom direction.Technological scheme of the present invention is as follows:
A kind of multi-freedom degree wave energy absorbing device, comprise support (6), fixed base (8) and two floats (2), two floats (2) are connected on support (6) by support beam (1), support (6) is connected with fixed base (8), wherein
Described fixed base is provided with an oil hydraulic cylinder (24), its moving piston (28) is connected on the cylinder body of oil hydraulic cylinder (24) by spring (25), and moving piston (28) is connected on support (6) by piston actuated bar (7);
Each float (2) comprises shell, inner carriage (15), rotary actuation bar (3) and No. two oil hydraulic cylinders (14), one end of described inner carriage (15) is fixedly connected with the cylinder body of No. two oil hydraulic cylinders (14), the other end is fixedly connected with described support beam (1), the shell of described float (2), side is connected with support beam (1) by bearing (12), opposite side is connected with rotary actuation bar (3) by bearing (13), thus the shell of float (2) can be rotated around support beam (1) and rotary actuation bar (3).
No. two oil hydraulic cylinders (14), comprise cylinder body, be fixed on the running shaft (20) on rotary actuation bar (3), the cross section of the cavity surrounded by the outer surface of running shaft (20) and the internal surface of cylinder body is ring, this cavity is claimed to be Ring-cylindrical cavity (23), high pressure oil is filled with in Ring-cylindrical cavity (23), baffle plate (22) and moving piston (21) is respectively arranged with at the different parts of Ring-cylindrical cavity (23), baffle plate (22) is fixedly connected with cylinder body (14) internal surface, moving piston (21) is fixedly connected with running shaft (20), two sides of the cylinder body of No. two oil hydraulic cylinders (14) are connected to one end of rotary actuation bar (3) by motive sealing, the other end of rotary actuation bar (3) is connected with the pendulum plate (5) being arranged on float outside by connecting rod (4), and rotary actuation bar (3) can be rotated along with the swing of pendulum plate (5).
Preferably, described multi-freedom degree wave energy absorbing device, described float (2) also comprises No. three oil hydraulic cylinders (10) be fixed in inner carriage (15), a piston (18) is respectively set in the both sides of No. three oil hydraulic cylinders (10), each piston (18) is respectively fixedly attached on the inner surface of outer cover of float by a piston brace rod (11), two piston brace rods (11) are bending bar, and two bending bars are bending to the same side.
The wave energy absorption device that the present invention proposes, passes through the extraction of float above-below direction out by lumpy potential energy; On sea, the kinetic energy of wave is extracted by the rotation of float around stationary axle; Under sea, the kinetic energy of wave is extracted by the swing of putting plate, and above-mentioned three kinds of energy be extracted are all by the unified motion being converted into piston.Thus wave energy is converted to hydraulic energy.There is following technique effect:
1) device utilizes the motion of multiple degrees of freedom, fully can absorb the energy of wave energy absorption device input place wave.
2) stability of a system is higher, and Driving Torque is more steady.
3) apparatus structure is simple, and equipment is convenient to installation and maintenance, can produce in batches.
Accompanying drawing explanation
Fig. 1 is multi-freedom degree wave energy absorbing device schematic diagram.
In figure, 1 is support beam; 2 is float; 3 is rotary actuation bar; 4 is connecting rod; 5 is pendulum plate; 6 is support; 7 is piston actuated bar; 8 is fixed base; 9 is sea.
Fig. 2 is float basic block diagram.
In figure, 10 is No. three oil hydraulic cylinders; 11 is piston brace rod, is fixed on float; 12,13 is bearing, and 12,13 are fitted on support beam 1 and rotary actuation bar 3 respectively, then is arranged on two semicircle bottom surfaces of semi-cylindrical float 2 respectively, and 12 for connecting support beam and float, and 13 for connecting rotary actuation bar and float; 14 is No. two oil hydraulic cylinders; 15 is inner carriage, for being linked up in 10,14 and support beam, is non-rotatable part.
Fig. 3 is 10(No. tri-oil hydraulic cylinders) planimetric map.
In figure, be No. three oil hydraulic cylinders in dotted rectangle; 16 is hydraulic oil pipeline; 17 is high pressure oil; 18 is piston.
Fig. 4 is 14(No. bis-oil hydraulic cylinders) planimetric map.
In figure, 19 is hydraulic oil pipeline; 20 is running shaft, rotates along with the swing of pendulum plate; 21 is moving piston, connects on the rotary shaft; 22 is baffle plate, is fixed on oil hydraulic cylinder; 23 is high pressure oil.
Fig. 5 is fixed base inner structure figure, and left hand view is stereogram, and right part of flg is planimetric map.
In figure, 24 is an oil hydraulic cylinder; 25 is spring; 26 is high pressure oil; 27 is hydraulic oil pipeline; 28 is moving piston.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
Fig. 1 is whole wave energy absorbing device schematic diagram.The present invention adopts the semi-cylindrical float 2 that two outward appearances are identical with structure, and each float comprises shell, and has installed the parts such as oil hydraulic cylinder in inside.One end of each float 2 is connected with support beam 1 one end by bearing 12, and the support beam the other end is fixing on the frame 6; The other end of float 2 is connected with rotary actuation bar 3 one end by bearing 13.Rotary actuation bar 3, pendulum plate 5 are connected together by connecting rod 4, form a swing rotary mechanism.Support is connected with one end of piston actuated bar 7 simultaneously, and the other end of piston actuated bar 7 is connected with the moving piston in fixed base.The mass block that fixed base 8 selects density large sinks to seabed, maintains static in theory.When there is wave on sea, on the one hand due to rising, the reduction on sea, the buoyancy that float is subject to changes, and then does the motion of vertical direction; Float can rotate due to the kinetic energy of wave incident direction on the other hand; Under sea, wave vertically acts on pendulum plate, and pendulum plate is around balance staff swing.
Fig. 2, Fig. 3 and Fig. 4 are Floater Structure figure.Float can rotate around support beam, and support beam is non-rotatable part, can only move up and down by vertical direction, and oil hydraulic cylinder 10,14 is fixed as a whole by inner carriage 15 and support beam, also can only do the motion of above-below direction.Piston brace rod 11 one end is fixed on float, the other end and piston 18 are fixed, because float can rotate relative to oil hydraulic cylinder 10, such connecting rod 11 will promote the high pressure oil in piston 18 compression hydraulic cylinder 10, the rotation function of float is converted into the hydraulic energy of hydraulic oil.Baffle plate 22 is fixed on oil hydraulic cylinder 14.One end of rotary actuation bar 3 is connected with two sides of the cylinder body of No. two oil hydraulic cylinders 14, and Placement is packing seal.Rotary actuation bar 3 is fixed together with the running shaft 20 in oil hydraulic cylinder 14, both do identical rotary motion, piston 21 one end is connected with 20, making when 20 rotate 21 can along with rotation, like this when under pendulum plate is along with sea, wave moves, 21 just can rotate, the high pressure oil 23 in compression hydraulic cylinder 14, are the hydraulic energy of hydraulic oil by the kinetic transformation of pendulum plate.
Fixed base structural drawing as shown in Figure 5.Piston actuated bar 7 one end is welded on support, and the other end is connected on moving piston 25.When there being wave, float can drive support to move up and down, and then makes 28 to move up and down, the high pressure oil in compression hydraulic cylinder 24, is hydraulic energy by the kinetic transformation of float.Spring 25 one end is fixed on oil hydraulic cylinder, and the other end is fixed on piston, and the height rise for reducing float, declined and speed, increase the stability of a system.The present invention is also provided with an oil hydraulic cylinder on fixed base, fixed base is had dual functions, namely adds the stability of a system, can improve again the absorption efficiency of wave energy.
Hydraulic oil the most at last in hydraulic oil pipe road 16,19,27 converges in a main pipeline, is generated electricity by oil hydraulic motor drive electrical generators.
Claims (2)
1. a multi-freedom degree wave energy absorbing device, comprise support (6), fixed base (8) and two floats (2), two floats (2) are connected on support (6) by support beam (1), support (6) is connected with fixed base (8), it is characterized in that
Described fixed base is provided with an oil hydraulic cylinder (24), its moving piston (28) is connected on the cylinder body of oil hydraulic cylinder (24) by spring (25), and moving piston (28) is connected on support (6) by piston actuated bar (7);
The outward appearance of two floats (2) is identical with structure, be semi-cylindrical float, each float (2) comprises shell, inner carriage (15), rotary actuation bar (3) and No. two oil hydraulic cylinders (14), one end of described inner carriage (15) is fixedly connected with the cylinder body of No. two oil hydraulic cylinders (14), the other end is fixedly connected with described support beam (1), the shell of described float (2), side is connected with support beam (1) by bearing (12), opposite side is connected with rotary actuation bar (3) by bearing (13), thus the shell of float (2) can be rotated around support beam (1) and rotary actuation bar (3),
No. two oil hydraulic cylinders (14), comprise cylinder body, be fixed on the running shaft (20) on rotary actuation bar (3), the cross section of the cavity surrounded by the outer surface of running shaft (20) and the internal surface of cylinder body is ring, this cavity is claimed to be Ring-cylindrical cavity, high pressure oil is filled with in Ring-cylindrical cavity, baffle plate (22) and moving piston (21) are separately positioned on the different parts of Ring-cylindrical cavity, baffle plate (22) is fixedly connected with inner surface of cylinder block, and moving piston (21) is fixedly connected with running shaft (20); Two sides of the cylinder body of No. two oil hydraulic cylinders (14) are connected to one end of rotary actuation bar (3) by motive sealing, the other end of rotary actuation bar (3) is connected with the pendulum plate (5) being arranged on float outside by connecting rod (4), and rotary actuation bar (3) can be rotated along with the swing of pendulum plate (5).
2. multi-freedom degree wave energy absorbing device according to claim 1, it is characterized in that, described float (2) also comprises No. three oil hydraulic cylinders (10) be fixed in inner carriage (15), a piston (18) is respectively set in the both sides of No. three oil hydraulic cylinders (10), each piston (18) is respectively fixedly attached on the inner surface of outer cover of float by a piston brace rod (11), two piston brace rods (11) are bending bar, and two bending bars are bending to the same side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410079214.2A CN103850862B (en) | 2014-03-05 | 2014-03-05 | Multi-freedom degree wave energy absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410079214.2A CN103850862B (en) | 2014-03-05 | 2014-03-05 | Multi-freedom degree wave energy absorbing device |
Publications (2)
| Publication Number | Publication Date |
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| CN103850862A CN103850862A (en) | 2014-06-11 |
| CN103850862B true CN103850862B (en) | 2016-03-30 |
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| CN201410079214.2A Expired - Fee Related CN103850862B (en) | 2014-03-05 | 2014-03-05 | Multi-freedom degree wave energy absorbing device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111597684B (en) * | 2020-04-14 | 2022-02-18 | 浙江大学 | Parameter optimization method for multi-degree-of-freedom wave energy device |
| CN114183290B (en) * | 2021-12-03 | 2023-07-07 | 北京石油化工学院 | Experimental device for float-type horizontal axis water turbine |
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- 2014-03-05 CN CN201410079214.2A patent/CN103850862B/en not_active Expired - Fee Related
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Granted publication date: 20160330 Termination date: 20210305 |