CN103061962A - Hydraulic combined oscillating floater wave energy generation device - Google Patents
Hydraulic combined oscillating floater wave energy generation device Download PDFInfo
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- CN103061962A CN103061962A CN2013100368517A CN201310036851A CN103061962A CN 103061962 A CN103061962 A CN 103061962A CN 2013100368517 A CN2013100368517 A CN 2013100368517A CN 201310036851 A CN201310036851 A CN 201310036851A CN 103061962 A CN103061962 A CN 103061962A
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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 invention relates to a hydraulic combined oscillating floater wave energy generation device. The hydraulic combined oscillating float wave energy generation device comprises a power generation system and a fixed system. The fixed system comprises a floating box and a fixed frame, wherein the fixed frame has a cube structure, and is fixedly connected with the top of the floating box; a cross beam is arranged on the top of the fixed frame; and quadrangular upright columns are respectively arranged at four corners on the side surface of the fixed frame. The power generation system includes a floater, an energy conversion device and an energy output device, wherein the floater is sheathed on the upright columns of the fixed frame; four identical guide devices for limiting horizontal movement of the floater are respectively arranged on the top and the bottom of the floater; the energy conversion device includes a mixing tank, a hydraulic motor, and four groups of identical hydraulic transmission mechanisms respectively arranged on the four upright columns at four corners on the side surface of the fixed frame; the mixing tank and the hydraulic motor are arranged on the crossbeam of the fixed frame; and the hydraulic transmission mechanism includes a hydraulic cylinder, a water inlet pipe, and water transmission pipes (A and B). The hydraulic combined oscillating floater wave energy generation device provided by the invention has the advantages of high energy conversion efficiency, high reliability, low construction cost, stable power output, and wide application.
Description
Technical field
The invention belongs to the wave-energy power generation technical field, particularly the combined oscillating floater Wave energy electric generator of a kind of hydraulic type.
Background technique
Wave energy electric generator comprises two conversion process of energy usually when carrying out wave energy power generation: at first be that wave energy is converted to the mechanical energy form that can supply generator to utilize, i.e. energy transfer process; Next is by generator mechanical energy to be converted to electric energy to export, i.e. the secondary transfer process of energy.The key problem of Wave energy converter is a transfer process of energy.The form of the mechanical energy that wave energy produced in the transfer process in the first time has and utilizes wave to move up and down to be directly changed into mechanical motion; Have and utilize wave to move up and down to produce air-flow or current to go to drive turbine generation; The swing that utilizes the wave device is also arranged or rotate and produce air-flow or current remove to drive turbine generation; Or the large wave of low pressure become the small volume high pressure water, then introduce head-tank and produce head and drive turbine generation.
Wave energy electric generator commonly used mainly contains following two kinds at present:
Oscillaton water column type Wave energy electric generator safety reliability is high but the wave energy conversion ratio is lower, and existing oscillaton water column type Wave energy electric generator mostly is the miniature electric power power devices such as navigation mark light, and output power is less; Offshore oscillaton water column type Wave energy electric generator is had relatively high expectations to coastal landform.
More unrestrained formula Wave energy electric generator simple in structure, the wave energy conversion ratio is higher, but because higher to material requirements, and failure under wave action very easily, disablement, maintenance and protection cost are higher.
Large with American-European countries coastal marine site wave height, energy flux density is high compares, the China coast marine site wave energy cycle is short, wave height is little, availability is lower, is not suitable for above dual mode.
Summary of the invention
For solving the problems of the technologies described above, the present invention proposes a kind of energy conversion efficiency higher, can under the different water depth condition, work, the construction cost of device is relatively low, and the output electric energy is relatively stable, the combined oscillating floater Wave energy electric generator of widely used hydraulic type.
Technological scheme of the present invention is: the combined oscillating floater Wave energy electric generator of a kind of hydraulic type, it comprises power generation system and fixed system.Wherein, fixed system comprises buoyancy tank and fixing frame, and fixing frame is cube structure, and it is fixedly connected on the buoyancy tank top, and the fixing frame top arranges crossbeam, and four jiaos of fixing frame sides arrange respectively column, and column is the quadrangular structure.Power generation system comprises float, energy conversion device and energy output device.Float is set on the column of fixing frame, moves up and down along column.Float top and bottom be respectively equipped with four identical in order to limit the guiding device of float horizontal motion.Guiding device can be eliminated the impact that wave topples and vibrates the float level, is conducive to collection and the conversion of wave energy.Energy conversion device comprise mixing tank, oil hydraulic motor identical with four groups, be arranged at fluid drive mechanism on four corner posts of fixing frame side respectively.Mixing tank and oil hydraulic motor are arranged on the crossbeam of fixing frame.Fluid drive mechanism comprises oil hydraulic cylinder, intake pipe, conduit pipe A and conduit pipe B.Four sides of every root post are respectively equipped with an oil hydraulic cylinder.Oil hydraulic cylinder is positioned at the float top, and its socket end is fixedly connected with column, and its piston rod is fixedly connected with float by the supporting frame of guiding device; Intake pipe one end stretches in the seawater, and the other end is communicated in the water intake of oil hydraulic cylinder sleeve; Conduit pipe A one end is communicated in the water outlet of oil hydraulic cylinder sleeve, and the other end is communicated in conduit pipe B, and conduit pipe B one end is communicated in the outlet of conduit pipe A, and the other end is communicated in the water inlet of mixing tank.The water outlet of mixing tank is communicated with the water intake of oil hydraulic motor, and the water outlet of oil hydraulic motor arranges waste pipe, and unnecessary water is discharged.Be equipped with one-way valve on described intake pipe, conduit pipe A, conduit pipe B and the discharge tube.Described energy output device is arranged on the crossbeam of fixing frame, and its input end is connected with the output terminal of oil hydraulic motor.
Described energy output device is generator.
Described guiding device comprises upper saw pulley and supporting frame.Supporting frame is fixed on the float, and the wheel shaft of upper saw pulley is fixed on the supporting frame, the column contacts side surfaces of upper saw pulley and described fixing frame.
Described buoyancy tank is hollow-core construction, an amount of seawater can be poured into or sand carries out counterweight according to sea situation in its inside, reach and make whole electricity generating device sink down into the following certain depth of the water surface, float carries out the up and down purpose of oscillatory movement at correct position, can guarantee the stability of electricity generating device integral body when running simultaneously.Fixed system is simple in structure, and flexible counterweight, has improved stability and the reliability of whole electricity generating device, is convenient to processing and implements better economy.
Described float is the hollow cylinder that the bottom is inverted cone.This structure is conducive to collect more wave energy, and its boring can be loaded counterweight according to sea situation.The float top layer is coated with corrosion resistant coating, to prevent by seawater corrosion.
Beneficial effect of the present invention is:
1, belong to the floating type Wave energy electric generator, the wave energy utilization ratio is high, is applicable to different sea situations, not affected by tidal range, is subjected to simultaneously the restriction of depth condition little, particularly also can work in the deep that surpasses 40m.
2, directly contact with wave, the transformation of energy number of times is few, has improved energy conversion rate.
3, single float is made up, further improved the reliability of wave energy utilization ratio and device.
4, simple in structure, movable part is less, and global stability is high, and reliability is good, can take into account reliability of structure and wave energy conversion ratio.
5, the servo-actuated property to wave is superior, and reliability is high, long service life, efficient are low, be easy to dismounting and assembling, is convenient to install deploy troops on garrison duty and keep in repair.
6, construction cost is lower, and the output electric energy is stable, can be used for protection to device require not too high, the zone that wave energy density is low.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the structural representation of single group fluid drive mechanism among the present invention;
Fig. 3 is the structural representation of guiding device among the present invention;
Fig. 4 is the partial enlarged drawing that oil hydraulic cylinder is connected with float among the present invention;
Fig. 5 is the structural representation of float among the present invention.
Among the figure: I, fixed system, II, power generation system, 101, fixing frame, 102, column, 103, buoyancy tank, 104, crossbeam, 201, float, 202, guiding device, 203, intake pipe, 204, oil hydraulic cylinder, 205, generator, 206, oil hydraulic motor, 207, mixing tank, 208, waste pipe, 209, conduit pipe B, 210, conduit pipe A, 211, wheel shaft, 212, upper saw pulley, 213, supporting frame, 214, piston rod.
Embodiment
Specify the present invention below in conjunction with drawings and Examples.
Embodiment 1
Such as Fig. 1-shown in Figure 4: the present invention includes power generation system II and fixed system I.
Wherein, the fixed system I comprises buoyancy tank 103 and fixing frame 101, and fixing frame 101 is cube structure, it is fixedly connected on buoyancy tank 103 tops, fixing frame 101 tops arrange crossbeam 104, and four jiaos of fixing frame 101 sides arrange respectively column 102, and column 102 is the quadrangular structure.
The power generation system II comprises float 201, energy conversion device and energy output device.Be respectively installed with float 201 on four root posts 102, float 201 moves up and down along column 102.The top of each float 201 and bottom be equipped with four identical in order to limit the guiding device 202 of float 201 horizontal motion.Guiding device 202 can be eliminated the impact that wave topples and vibrates float 201 levels, is conducive to collection and the conversion of wave energy.Guiding device 202 comprises upper saw pulley 212 and supporting frame 213.Supporting frame 213 is fixed on the float 201, and the wheel shaft 211 of upper saw pulley 212 is fixed on the supporting frame 213, column 102 contacts side surfaces of upper saw pulley 212 and fixing frame 101.
Energy conversion device comprise mixing tank 207, oil hydraulic motor 206 identical with four groups, be arranged at fluid drive mechanism on four corner posts 102 of fixing frame 101 sides respectively.Mixing tank 207 and oil hydraulic motor 206 are arranged on the crossbeam 104 of fixing frame 101.Fluid drive mechanism comprises oil hydraulic cylinder 204, intake pipe 203, conduit pipe A210 and conduit pipe B209.Four sides of every root post 102 are respectively equipped with an oil hydraulic cylinder 204.Every group of fluid drive mechanism comprises four oil hydraulic cylinders 204, four intake pipes 203, four conduit pipe A210 and a conduit pipe B209.Oil hydraulic cylinder 204 is positioned at float 201 tops, and its socket end is fixedly connected with column 102, and its piston rod 214 is fixedly connected with float 201 by the supporting frame 213 of guiding device 202; Intake pipe 203 1 ends stretch in the seawater, and the other end is communicated in the water intake of oil hydraulic cylinder 204 sleeves; Conduit pipe A210 one end is communicated in the water outlet of oil hydraulic cylinder 204 sleeves, and the other end is communicated in conduit pipe B209, and the outlet of four conduit pipe A210 all is communicated in the water intake of conduit pipe B209, and conduit pipe B209 water outlet is communicated in the water inlet of mixing tank 207.The water outlet of mixing tank 207 is communicated with the water intake of oil hydraulic motor 206, and the water outlet of oil hydraulic motor 206 arranges waste pipe 208, and unnecessary water is discharged.Be equipped with one-way valve on all intake pipes 203, conduit pipe A210, conduit pipe B209 and the discharge tube.
Energy output device is generator 205, and it is arranged on the crossbeam 104 of fixing frame 101, and generator 205 input shafts are connected by coupling with the output shaft of oil hydraulic motor 206.
Its working procedure is as follows: the wave of different direction, frequency is patted float 201, and float 201 absorbs wave energies, and when float 201 was subject to power that wave makes progress, float 201 rose, and wave energy is converted to the mechanical energy of float 201.The piston rod 214 that float 201 drives oil hydraulic cylinder 204 moves upward, on the intake pipe 203 one-way valve is set, seawater can only enter from intake pipe 203 in the oil hydraulic cylinder 204, and the seawater in the oil hydraulic cylinder 204 enters in the mixing tank 207 by conduit pipe A210 and conduit pipe B209 under the effect of piston rod 214.When the seawater storage in the mixing tank 207 acquires a certain degree, discharge impact oil hydraulic motor 206 by the water outlet of mixing tank 207, thereby drive generator 205 generatings.Oil hydraulic motor 206 is directly discharged seawater by discharge tube.When float 201 descends, the piston rod 214 of oil hydraulic cylinder 204 moves downward thereupon, on conduit pipe A210 and the conduit pipe B209 one-way valve is set all, seawater can only flow to mixing tank 207 from oil hydraulic cylinder 204, and can not reverse flow, piston rod 214 moves downward, and oil hydraulic cylinder 204 internal pressures reduce, and seawater pours in down a chimney the oil hydraulic cylinder 204 from intake pipe 203.
The key technical indexes: electric motor power of the present invention is 10kW, and reaches generating capacity 5kW level, and the wave energy conversion ratio is higher than 15%, moves continuously 10 hours, and gross generation reaches 200kWh.
Embodiment 2
Outside lower difference, other are with embodiment 1.
Buoyancy tank 103 is hollow-core construction, an amount of seawater can be poured into or sand carries out counterweight according to sea situation in its inside, reach and make whole electricity generating device sink down into the following certain depth of the water surface, float 201 carries out the up and down purpose of oscillatory movement at correct position, can guarantee the stability of electricity generating device integral body when running simultaneously.The fixed system I is simple in structure, and flexible counterweight, has improved stability and the reliability of whole electricity generating device, is convenient to processing and implements better economy.
Buoyancy tank 103 provides downward pulling force by the deadweight of itself and the counterweight of the interior sand of case, makes whole electricity generating device can immerse the seabed certain depth, and normal reciprocating vibration moves to make float 201 do up and down along column 102, and intake pipe 203 inserts below the waters surface.Simultaneously, buoyancy tank 103 also provides certain buoyancy, when wave height hour, also can do relative motion between float 201 and the column 102, guarantee that namely float 201 is in running order all the time.
Embodiment 3
Outside lower difference, other are with embodiment 1.
As shown in Figure 5, float 201 is the hollow cylinder of inverted cone for the bottom.These float 201 structures are conducive to collect more wave energy, and its boring can be loaded counterweight according to sea situation.Float 201 top layers are coated with corrosion resistant coating, to prevent by seawater corrosion.
Claims (5)
1. the combined oscillating floater Wave energy electric generator of hydraulic type comprises power generation system and fixed system, it is characterized in that,
Described fixed system comprises buoyancy tank and fixing frame, and fixing frame is cube structure, and it is fixedly connected on the buoyancy tank top, and the fixing frame top arranges crossbeam, and four jiaos of fixing frame sides arrange respectively column, and column is the quadrangular structure;
Described power generation system comprises float, energy conversion device and energy output device, float is set on the column of fixing frame side, move up and down along column, float top and bottom be respectively equipped with four identical in order to limit the guiding device of float horizontal motion, described energy conversion device comprises mixing tank, oil hydraulic motor is with four groups identical, be arranged at respectively the fluid drive mechanism on four corner posts of fixing frame side, mixing tank and oil hydraulic motor are arranged on the crossbeam of fixing frame, fluid drive mechanism comprises oil hydraulic cylinder, intake pipe, conduit pipe A and conduit pipe B, four sides of every root post are respectively equipped with an oil hydraulic cylinder, oil hydraulic cylinder is positioned at the float top, its socket end is fixedly connected with column, and its piston rod is fixedly connected with float by the supporting frame of guiding device; Intake pipe one end stretches in the seawater, and the other end is communicated in the water intake of oil hydraulic cylinder sleeve; Conduit pipe A one end is communicated in the water outlet of oil hydraulic cylinder sleeve, and the other end is communicated in conduit pipe B, and conduit pipe B one end is communicated in the outlet of conduit pipe A, and the other end is communicated in the water inlet of mixing tank.The water outlet of mixing tank is communicated with the water intake of oil hydraulic motor, and the water outlet of oil hydraulic motor arranges waste pipe, is equipped with one-way valve on described intake pipe, conduit pipe A, conduit pipe B and the discharge tube; Described energy output device is arranged on the crossbeam of fixing frame, and its input end is connected with the output terminal of oil hydraulic motor.
2. Wave energy electric generator according to claim 1 is characterized in that, described guiding device comprises upper saw pulley and supporting frame; Supporting frame is fixed on the float, and the wheel shaft of upper saw pulley is fixed on the supporting frame, the column contacts side surfaces of upper saw pulley and described fixing frame.
3. Wave energy electric generator according to claim 1 is characterized in that, described energy output device is generator.
4. Wave energy electric generator according to claim 1 is characterized in that, described buoyancy tank is hollow-core construction.
5. Wave energy electric generator according to claim 1 is characterized in that, described float is the hollow cylinder that the bottom is inverted cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310036851.7A CN103061962B (en) | 2013-01-31 | 2013-01-31 | Hydraulic combined oscillating floater wave energy generation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310036851.7A CN103061962B (en) | 2013-01-31 | 2013-01-31 | Hydraulic combined oscillating floater wave energy generation device |
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| CN103061962A true CN103061962A (en) | 2013-04-24 |
| CN103061962B CN103061962B (en) | 2015-05-20 |
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Cited By (6)
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| CN103939271A (en) * | 2014-05-05 | 2014-07-23 | 中国海洋大学 | Combined type oscillation floater wave energy power generation device |
| CN104121140A (en) * | 2014-07-16 | 2014-10-29 | 上海交通大学 | Y-shaped wave energy absorbing and converting device |
| CN104329213A (en) * | 2014-10-20 | 2015-02-04 | 中国海洋大学 | Tide level self-adaption device of vibration floater wave power generation device |
| CN105089917A (en) * | 2014-05-08 | 2015-11-25 | 广东强光海洋工程有限公司 | Push-pull rotating type wave power generating device |
| CN106337775A (en) * | 2016-11-24 | 2017-01-18 | 刘可 | Multi-dimensional floating block type sea wave power generation device |
| CN112943540A (en) * | 2021-02-17 | 2021-06-11 | 中国海洋大学 | Wind and wave integrated power generation device based on combination of floating platform and annular segmented oscillating floater and power generation method thereof |
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| CN105089917A (en) * | 2014-05-08 | 2015-11-25 | 广东强光海洋工程有限公司 | Push-pull rotating type wave power generating device |
| CN104121140A (en) * | 2014-07-16 | 2014-10-29 | 上海交通大学 | Y-shaped wave energy absorbing and converting device |
| CN104329213A (en) * | 2014-10-20 | 2015-02-04 | 中国海洋大学 | Tide level self-adaption device of vibration floater wave power generation device |
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| CN106337775A (en) * | 2016-11-24 | 2017-01-18 | 刘可 | Multi-dimensional floating block type sea wave power generation device |
| CN112943540A (en) * | 2021-02-17 | 2021-06-11 | 中国海洋大学 | Wind and wave integrated power generation device based on combination of floating platform and annular segmented oscillating floater and power generation method thereof |
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