CN111140426B - Wave power generation device based on friction power generation principle - Google Patents
Wave power generation device based on friction power generation principle Download PDFInfo
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- CN111140426B CN111140426B CN201911418181.9A CN201911418181A CN111140426B CN 111140426 B CN111140426 B CN 111140426B CN 201911418181 A CN201911418181 A CN 201911418181A CN 111140426 B CN111140426 B CN 111140426B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
- F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
- F03B13/1805—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem
- F03B13/1825—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem for 360° rotation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
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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 provides a wave power generation device based on a friction power generation principle, which comprises an energy capturing mechanism on the shore, a friction power generation mechanism, a supporting and limiting mechanism and a power control box. The energy capturing mechanism comprises a floating ball, a floating pendulum, a rotating wheel and a rotating shaft; the friction power generation mechanism comprises a power generation wheel disc, a positive friction power generation sheet, a negative friction power generation sheet and an insertion sheet disc which are fixed on the dam; the supporting and limiting mechanism comprises a vertical rod for supporting the power generation wheel disc, a sliding pipe sleeve sleeved on the vertical rod and a transverse rod for vertically connecting the sliding pipe sleeve and the floating ball; the friction power generation mechanism is connected to a power supply control box through a lead, and the power supply control box is connected with electric equipment. By utilizing the invention, the absorption and conversion of wave energy can be realized, the energy loss of the coast can be effectively reduced, the damage to the coast is reduced, and great economic benefit is obtained.
Description
Technical Field
The invention relates to the field of energy harvesting, in particular to a wave energy power generation device based on a friction power generation principle.
Background
Energy is an important foundation for economic and social development, and with the continuous increase of energy demand in China, the problems of energy shortage and environmental pollution caused by the energy utilization process become important factors for restricting ecological civilization construction. The renewable energy is vigorously developed, the energy production and the consumption revolution are promoted, and the ecological energy is an important guarantee for building ecological civilization and beautiful China.
The green and clean ocean renewable energy has great development and utilization potential. Wherein, wave energy generated by the wave motion of the seawater reaches 700 hundred million kilowatts, which accounts for 94 percent of the world ocean energy. However, China has continental coastlines which are as long as 18000 kilometers and 14000 kilometers of more than 5000 islands, contains 7000 thousands kilowatt wave energy, and has wide development and utilization prospects. Wave energy is the cleanest renewable resource, and the development and utilization of the wave energy can greatly relieve the crisis of gradual depletion of fossil energy, improve the damage to the environment caused by burning the fossil energy, and simultaneously effectively reduce the energy consumption of the coast and reduce the damage to the coast.
Since 1799 France Girard father and son applied for the first wave energy power generation technology patent in the world, wave energy development technology gradually matures abroad, and part of devices realize industrialized application. The wave energy power generation research work started in China from the 60 th century of 20 th century and goes through the process from theoretical research to prototype sea test. The conventional wave energy conversion devices comprise three major types, namely an oscillating water column type, an oscillating body type and a wave-crossing type. The three types have advantages and disadvantages, but have the common problem that the wave energy is converted into electric energy through a plurality of intermediate links, and the intermediate links generally need to pass through: the energy conversion process of wave energy-mechanical energy-hydraulic energy (air pressure energy) -mechanical energy-electric energy is low in efficiency. The complex link also makes the traditional wave energy power generation device have complex structure and high cost.
Disclosure of Invention
Aiming at the defects of the prior art, the invention optimizes the energy conversion mode and simplifies the structure of the traditional wave energy power generation device, and provides the wave energy power generation device based on the friction power generation principle.
The invention solves the technical problem by adopting the technical scheme that the wave energy power generation device based on the friction power generation principle comprises an energy capturing mechanism, a friction power generation mechanism, a supporting and limiting mechanism and a power supply control box. The energy capturing mechanism comprises a floating ball, a floating pendulum, a rotating wheel and a rotating shaft, wherein the floating ball is rotatably connected with the floating pendulum, the floating pendulum is rotatably connected with the rotating wheel, and the floating pendulum drives the rotating shaft to rotate through the rotating wheel; the friction power generation mechanism comprises a power generation wheel disc, a positive friction power generation piece, a negative friction power generation piece and an insertion piece disc which are fixed on a dam, the insertion piece disc is fixedly connected to the inner surface of the power generation wheel disc and the outer surface of the rotating shaft respectively, the negative friction power generation piece is installed on the insertion piece disc fixedly connected with the power generation wheel disc, the positive friction power generation piece is installed on the insertion piece disc fixedly connected with the rotating shaft, and the positive friction power generation piece and the negative friction power generation piece are both made of flexible materials; the supporting and limiting mechanism comprises a vertical rod for supporting the power generation wheel disc, a sliding pipe sleeve sleeved on the vertical rod and a transverse rod vertically connected with the sliding pipe sleeve and the floating ball; the friction power generation mechanism is connected to the power supply control box through a lead.
Furthermore, the floating ball is connected with the floating pendulum in a spherical hinge mode, the floating pendulum is hinged to the rotating wheel, the floating ball is made of a solid buoyancy material which is good in weather resistance and convenient to maintain, and the floating pendulum and the rotating wheel are made of a high-strength light composite material.
Furthermore, the sliding pipe sleeve is made of corrosion-resistant and light composite materials, and is fixedly connected with the center of the floating ball through a cross rod perpendicular to the pipe wall, so that the floating ball can reciprocate in the vertical direction all the time under the action of waves.
Furthermore, the power generation wheel disc is made of light composite materials with high strength, wear resistance and corrosion resistance, and can effectively ensure the normal operation of the friction power generation mechanism under the complex environment of the coast.
Furthermore, the inserting sheet disc is of an inner hollow structure.
Furthermore, a plurality of inserting plate discs are uniformly distributed on the rotating shaft, positive friction generating plates are arranged on the inserting plate discs, each positive friction generating plate comprises five layers, positive dielectric material layers, electrode layers, middle substrate layers, electrode layers and positive dielectric material layers are arranged from top to bottom, and the layers of materials are mutually and completely covered.
Furthermore, a plurality of inserting plate discs are uniformly distributed on the inner wall of the power generation wheel disc, negative friction power generation pieces are arranged on the inserting plate discs, the negative friction power generation pieces comprise five layers which are respectively a negative dielectric material layer, an electrode layer, a middle base plate layer, an electrode layer and a negative dielectric material layer from top to bottom, and the layers are mutually and completely covered.
Furthermore, the positive friction power generation piece and the negative friction power generation piece are consistent in shape and size and are both designed to be sheet-shaped, and alignment is realized in spatial position. Because the friction power generation pieces are made of flexible materials, when the rotating shaft rotates, the positive friction power generation piece and the negative friction power generation piece can be in mutual contact, friction and separation, and therefore movement of electric charges is formed.
Furthermore, the friction plate has dielectric material layers on the front side and the back side of the base plate, so that the friction power generation effect can be realized no matter what way the rotating wheel rotates.
Furthermore, the electrode layers of the positive dielectric material are connected in series through leads, and the leads after being connected in series are gathered and led out through a cavity in the middle of the rotating shaft and are used as positive electrode wires and connected to a power supply control box; the electrode layers of the negative electrode dielectric materials are connected in series through leads, and the leads after being connected in series are converged and led out along the inner wall of the power generation wheel disc and are connected to a power supply control box as negative electrode wires.
Furthermore, the power control box comprises a power detection device, a voltage-stabilizing rectification device, an electric energy storage device and a voltage-transformation output device, the friction power generation mechanism is connected with the power detection device through a derived positive electrode wire and a derived negative electrode wire, then the available electric energy is transmitted to a point-of-use device through the voltage-stabilizing rectification device and the voltage-transformation output device, and redundant electric energy is transmitted to the electric energy storage device through the voltage-stabilizing rectification device for storage.
The invention has the beneficial effects that: according to the invention, a friction power generation device for collecting ocean wave energy is arranged on the outer surface of the embankment, mechanical energy generated by the wave energy is converted into electric energy by using a friction power generation principle, and the electric energy is collected and utilized to provide green energy for public lighting equipment, detection equipment and the like on the bank embankment; the floating ball can float up and down along with the fluctuation of seawater, so that the energy collected by the impact of sea waves is borne to the maximum extent, and the arrangement of the dielectric materials on the front surface and the back surface of the friction layer can ensure that the rotating wheel can realize friction power generation no matter what direction the rotating wheel rotates. The friction type power generation device is simple in structure, easy to process and manufacture, energy-saving and environment-friendly, not only saves cost compared with the traditional complex wave energy power generation device, but also greatly improves the power generation efficiency, and is a power generation mode with less limitation, high efficiency and environmental protection. The device of the invention can realize the absorption and conversion of wave energy, effectively reduce the energy loss of the coast, reduce the damage to the coast and obtain great economic benefit.
Drawings
Fig. 1 is a front view schematic diagram of a wave energy power generation device.
Fig. 2 is a schematic side view of the wave energy power generation device.
Fig. 3 is a schematic perspective view of the wave energy power generation device.
FIG. 4 is a schematic view of a positive friction electricity generating piece mounted on a rotating shaft.
Fig. 5 is a schematic view of a negative friction power generating blade mounted on a wall of a power generating wheel disk.
Fig. 6 is a schematic diagram of a power control box.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, and the objects and effects of the invention will become more apparent. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-6, the wave energy power generation device based on the principle of friction power generation of the present invention comprises three parts: the device comprises an energy capturing mechanism at the bank side, a friction power generation mechanism 20 arranged on the bank wall, a supporting and limiting mechanism and a power control box 21.
The energy capturing mechanism comprises a floating ball 1, a floating pendulum 2, a rotating wheel 3 and a rotating shaft 4. The connection mode of the floating ball 1 and the floating pendulum 2 is a spherical hinge mode. The floating ball 1 drives the floating pendulum 2 to move under the impact action of waves, the floating pendulum 2 is hinged at one end of the rotating wheel 3, the other end of the rotating wheel 3 is fixedly connected with the rotating shaft 4, and the rotating wheel 3 rotates around the axis of the rotating shaft 4 due to the movement of the floating pendulum 2. The floating ball 1 is made of solid buoyancy materials which have good weather resistance and are convenient to maintain, and the floating pendulum 2 and the rotating wheel 3 are made of high-strength light composite materials.
The friction power generation mechanism 20 comprises at least one power generation wheel disc 5, 4 positive friction power generation pieces 6,4 negative friction power generation pieces 7 and 8 insertion disc discs 8. The inserting plate 8 is fixedly connected to the inner surface of the power generation wheel disc 5 and the outer surface of the rotating shaft 4 through bolts respectively, and is uniformly distributed along the circumferential direction at 360 degrees according to a step angle of 90 degrees. The negative friction power generation piece 7 is arranged on the insertion piece disc 8 fixedly connected with the power generation wheel disc 5, the positive friction power generation piece 6 is arranged on the insertion piece disc 8 fixedly connected with the rotating shaft 4, and a friction power generation unit 27 is formed by the positive friction power generation piece 6 and the negative friction power generation piece 7. The positive friction power generation sheet 6 comprises five layers, namely a positive electrode dielectric material layer 15, an electrode layer 14, a middle substrate layer 13, the electrode layer 14 and the positive electrode dielectric material layer 15 from top to bottom. The negative friction power generation sheet 7 comprises five layers, namely a negative electrode dielectric material layer 19, an electrode layer 14, a middle substrate layer 13, the electrode layer 14 and the negative electrode dielectric material layer 19 from top to bottom. The shapes and sizes of materials of each layer of the positive friction power generation sheet 6 and the negative friction power generation sheet 7 are consistent and are of a full-coverage type, in the embodiment, the plane sizes of the positive friction power generation sheet and the negative friction power generation sheet are 300mm multiplied by 120mm, the thickness of the substrate layer 13 is 3mm, the thickness of the electrode layer 14 is 1mm, and the thicknesses of the positive dielectric material layer 15 and the negative dielectric material layer 19 are 1-2 mm. In this embodiment, the positive dielectric material layer 15 is made of an aluminum foil material, the negative dielectric material layer 19 is made of a PVC material, the electrode layer 14 is made of a phosphor-copper thin layer material, and the substrate layer 13 is made of a carbon fiber patch. The positive friction power generation sheet 6 and the negative friction power generation sheet 7 are aligned in space position, and the overlapping area accounts for 70% of the area of each friction layer when in contact. The 20% part of the root of the friction layer is wrapped in the insert plate disc 8 and screwed tightly. The inserting plate 8 is made of a tough material and can bear bending stress generated at the root when the friction layer contacts with the friction layer, so that the abrasion and the breakage of the friction layer are prevented, and the service life is prolonged. The power generation wheel disc 5 is packaged by adopting MC nylon materials, and normal operation of the friction power generation mechanism in a complex coastal environment can be effectively guaranteed.
The supporting and limiting mechanism comprises a vertical rod 9 for supporting the power generation wheel disc 5, a sliding pipe sleeve 12 sleeved on the vertical rod 9 and a cross rod 11 vertically connected with the sliding pipe sleeve 12 and the floating ball 1. The power generation wheel disc 5 and the vertical rod 9 are both installed on the bank wall through foundation screws 10. The sliding pipe sleeve 12 is fixedly connected with the floating ball 1 through the cross rod 11, so that the floating ball 1 can reciprocate in the vertical direction all the time under the action of wave energy.
The electrode layers 14 of the positive friction power generation sheet 6 are connected in series through leads, and the leads after being connected in series are gathered and led out through a cavity in the middle of the rotating shaft 4 and are connected to a power supply control box 21 as a positive electrode wire 16. The electrode layers 14 of the negative friction power generation sheet 7 are connected in series through leads, and the leads after series connection are converged and led out along the inner wall 17 of the power generation wheel disc and are connected to a power supply control box 21 as a negative electrode wire 18.
In the implementation case, when the floating ball 1 does up-and-down reciprocating motion under the action of wave energy, the rotating wheel 3 and the rotating shaft 4 rotate around the axis through the floating pendulum 2, the rotating shaft 4 drives the inserting plate disc 8, and the positive friction generating piece 6 on the inserting plate disc 8 rotates along with the rotating wheel, and is in contact with the negative friction generating piece 7 of the inserting plate disc 8 on the generating wheel disc wall 17 for friction and separation. Because both sides of the substrate layer 13 in the friction plate are provided with dielectric material layers, no matter the positive friction power generation plate 6 rotates clockwise or anticlockwise, the friction power generation effect can be realized. In the process of the contact friction separation of the friction plates, the charge balance of the aluminum foil and the PVC is broken, so that the potential difference is generated, the movement of the charges is further formed, the current is transmitted to the power supply control box 21 through the positive electrode wire 16 and the negative electrode wire 18, and the energy conversion process of converting the mechanical energy generated by the wave energy into the electric energy is completed.
The power control box 21 comprises a power detection device 22, a voltage stabilization rectifying device 23, a transformation output device 24 and an electric energy storage device 25, wherein the transformation output device 24 is connected with an electric device 26. The power detection device 22 adopts a common electrifying detection device and is mainly used for dynamically monitoring the electric energy output condition of the friction power generation mechanism 20, so as to determine whether the power generation device of the invention works normally; the voltage-stabilizing rectifying device 23 adopts a common voltage-stabilizing rectifying circuit to perform voltage-stabilizing rectification on the electric energy generated by the friction power generation mechanism 20; the transformation output device 24 is a common transformer and is used for matching with the rated voltage of the electric equipment 26; the electric energy storage device 25 may employ an electric storage device with a certain capacity to store excess electric energy for use when the generated energy is insufficient.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and although the invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes in the form and details of the embodiments may be made and equivalents may be substituted for elements thereof. All modifications, equivalents and the like which come within the spirit and principle of the invention are intended to be included within the scope of the invention.
Claims (6)
1. A wave power generation device based on friction power generation principle, its characterized in that: the power generation device comprises an energy capturing mechanism, a friction power generation mechanism, a supporting and limiting mechanism and a power supply control box, wherein the energy capturing mechanism comprises a floating ball, a floating pendulum, a rotating wheel and a rotating shaft, the floating ball is rotatably connected with the floating pendulum, the floating pendulum is rotatably connected with the rotating wheel, and the floating pendulum drives the rotating shaft to rotate through the rotating wheel; the friction power generation mechanism comprises a power generation wheel disc, a positive friction power generation piece, a negative friction power generation piece and an insertion piece disc which are fixed on a dam, the insertion piece disc is of an inner hollow structure, the insertion piece disc is fixedly connected to the inner surface of the power generation wheel disc and the outer surface of a rotating shaft respectively, the negative friction power generation piece is installed on the insertion piece disc fixedly connected with the power generation wheel disc, the positive friction power generation piece is installed on the insertion piece disc fixedly connected with the rotating shaft, and the positive friction power generation piece and the negative friction power generation piece are both made of flexible materials; the supporting and limiting mechanism comprises a vertical rod for supporting the power generation wheel disc, a sliding pipe sleeve sleeved on the vertical rod and a transverse rod vertically connected with the sliding pipe sleeve and the floating ball;
the inserting plate fixedly connected to the inner surface of the power generation wheel disc and the inserting plate fixedly connected to the outer surface of the rotating shaft are uniformly arranged along the circumferential direction;
the positive friction power generation piece comprises five layers which are respectively a positive electrode dielectric material layer, an electrode layer, a middle substrate layer, an electrode layer and a positive electrode dielectric material layer from top to bottom, the negative friction power generation piece comprises five layers which are respectively a negative electrode dielectric material layer, an electrode layer, a middle substrate layer, an electrode layer and a negative electrode dielectric material layer from top to bottom, the materials of the layers are all covered with each other, and the positive friction power generation piece and the negative friction power generation piece are consistent in shape and size and are in positive alignment in space.
2. The wave power unit based on friction power generation principle as claimed in claim 1, wherein said floating ball is connected with said floating pendulum in a spherical hinge manner, said floating pendulum is hinged on said rotating wheel, said floating ball is made of solid buoyancy material with good weather resistance and easy maintenance, and said floating pendulum and said rotating wheel are made of high-strength light composite material.
3. A wave-power unit based on the principle of friction power generation according to claim 1 characterized in that the sliding tube sleeve and the cross bar are made of corrosion resistant, light weight composite material.
4. A wave power unit based on friction power generation principle as claimed in claim 1 characterized in that said power generating wheel disc is made of light composite material with high strength, wear resistance and corrosion resistance.
5. The wave power generation device based on the friction power generation principle as claimed in claim 1, wherein the positive electrode dielectric material layers are connected in series through wires, the wires after being connected in series are gathered and led out through a cavity in the middle of the rotating shaft to serve as positive electrode wires, the negative electrode dielectric material layers are connected in series through wires, the wires after being connected in series are gathered and led out along the inner wall of the power generation wheel disc to serve as negative electrode wires, and the positive electrode wires and the negative electrode wires are respectively connected to the power supply control box.
6. The wave power generation device based on the friction power generation principle as claimed in claim 1, wherein the power control box comprises a power detection device, a voltage-stabilizing rectification device, an electric energy storage device and a voltage-transformation output device, the friction power generation mechanism is connected with the power detection device through the derived positive and negative electrode wires, then the available electric energy is transmitted to the electric equipment through the voltage-stabilizing rectification device and the voltage-transformation output device, and the redundant electric energy is transmitted to the electric energy storage device through the voltage-stabilizing rectification device for storage.
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| CN201911418181.9A CN111140426B (en) | 2019-12-31 | 2019-12-31 | Wave power generation device based on friction power generation principle |
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| CN111140426B true CN111140426B (en) | 2021-02-09 |
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| CN112350443A (en) * | 2020-09-11 | 2021-02-09 | 浙江大学 | Sea wave energy collector based on magnetic force and triboelectric effect |
| CN112360674A (en) * | 2020-11-10 | 2021-02-12 | 青岛鼎信通讯股份有限公司 | Intelligent water meter energy-taking device based on water hammer effect |
| CN113859459B (en) * | 2021-10-06 | 2022-12-16 | 广东粤电珠海海上风电有限公司 | Floating type wind power generation tower base |
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| CN103780129A (en) * | 2013-05-27 | 2014-05-07 | 国家纳米科学中心 | Rotary electrostatic generator |
| WO2017158513A1 (en) * | 2016-03-14 | 2017-09-21 | Universidade Do Porto | Triboelectric turbine for generating electricity from the motion of fluids |
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