CN109058031B - Oscillating float type wave power generation device based on dielectric elastomer - Google Patents
Oscillating float type wave power generation device based on dielectric elastomer Download PDFInfo
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- CN109058031B CN109058031B CN201810766815.9A CN201810766815A CN109058031B CN 109058031 B CN109058031 B CN 109058031B CN 201810766815 A CN201810766815 A CN 201810766815A CN 109058031 B CN109058031 B CN 109058031B
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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"
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/706—Application in combination with an electrical generator
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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 discloses an oscillating float type wave energy power generation device based on a dielectric elastomer, and belongs to the technical field of ocean energy power generation devices. The wave energy collecting structure comprises a floater and a connecting rod, the bottom of the connecting rod is connected with the floater, the top of the connecting rod is connected with a bowl-shaped piston of the high-pressure inflating mechanism, and in a use state, the floater fluctuates up and down or swings along with sea surface waves to enable the connecting rod to move, and the connecting rod further drives the bowl-shaped piston to move up and down; the bowl-shaped piston moves up and down to squeeze air and make the air flow into the gas energy storage mechanism; the dielectric elastomer power generation sleeve is connected with a small air cylinder of the gas drive reversing mechanism through a gas pipeline. The invention is easy to miniaturize, has low cost, has excellent electromechanical conversion characteristics, can continuously supply power for a long time and has high energy collection efficiency.
Description
Technical Field
The invention belongs to the technical field of ocean power generation devices, and relates to an oscillating float type wave power generation device based on a dielectric elastomer.
Background
Ocean energy, represented by wave energy, is considered as an ideal clean renewable energy source by the industry, and is receiving more and more attention from various countries. In recent years, scientists in various countries have been engaged in researching large-scale development and commercial application of ocean power generating sets, and offshore power generating platforms with large structural scale and high power generating efficiency are built, but small power generating devices for continuously supplying power to sea surface wireless sensor nodes and low-power equipment are few.
At present, the research reports on offshore power generation devices in the prior art are as follows:
CN106949001A discloses a submerged anchor float type wave power generation device, which mainly comprises a submerged anchor and a float connected with the submerged anchor, wherein a main transmission shaft wound by a cable is arranged in the float, the transmission shaft is respectively connected with a torsion spring assembly and a power generation unit, and the main transmission shaft is driven to generate compensatory autorotation to release the wound mooring cable by the float fluctuating or swinging along with the waves.
CN20711130U discloses a novel floating wind energy wave energy combined power generation system, based on the integrated power generation platform of semi-submerged floating-vibration water column type wave energy of no support post, it includes offshore wind power generation device and vibration water column type wave energy power generation facility, and its electricity generation principle is: the wave energy power generation device converts the up-and-down reciprocating motion of the water column into the reciprocating motion of gas, and then the wave energy power generation is completed through the air turbine generator. The bottom buoyancy tank and the anchor chain of the semi-submersible platform are fully utilized, and the wave energy power generation device moves up and down along with waves, so that the power generation efficiency is reduced, and the buoyancy tank can slow down up and down vibration; the anchor chain can prevent the wave energy device from moving up and down.
Although the overall economy of the offshore wind farm is improved to a certain extent in the prior art, the offshore power generation platform in the prior art mostly adopts a linear motor for power generation or electromagnetic power generation, and the application of the offshore wind farm in the ocean field is limited due to low energy conversion rate, easiness in damage and high economic cost.
The dielectric elastomer has the advantages of excellent electromechanical conversion characteristics, high energy density, easy forming, difficult fatigue damage and the like, and therefore, a method for obtaining electric energy by collecting energy by using the dielectric elastomer is receiving more and more attention. The method can be used for manufacturing a soft and light power generation device with high energy conversion efficiency, and the research reports related to the power generation of the dielectric elastomer in the prior art mainly include:
CN107288820A discloses a wind power generation device based on a dielectric elastomer, which uses a windmill component to drive a connecting rod to reciprocate, so that the dielectric elastomer is in a motion state of periodic compression and rebound, thereby realizing conversion between mechanical energy and electrical energy.
CN108152331A discloses a dielectric elastomer round platform formula tensile electricity generation test device, this device includes motor, crank, connecting rod, slider, acrylic tube, guide rail, dielectric elastomer membrane etc.. The rotary motion of the motor can be converted into reciprocating linear motion of the acrylic tube driving the central part of the dielectric elastomer film through the device, so that the dielectric elastomer film is stretched in a circular truncated cone mode, and the size and the capacitance value of the dielectric elastomer film are changed to generate power.
The above prior art further proves that it is feasible to use the dielectric elastomer in the power generation device, however, the device using the dielectric elastomer for offshore power generation has not been reported, and offshore power generation has become a new direction for the development of international wind power, and therefore, the research on a device using the dielectric elastomer for wave energy power generation has become a new direction for researchers in the field.
Disclosure of Invention
The invention aims to provide an oscillating float type wave energy power generation device based on a dielectric elastomer, wherein the dielectric elastomer is firstly used in the wave energy power generation device, and conversion of mechanical energy and electric energy is realized through mutual matching of a wave energy collecting structure, a high-pressure inflating mechanism, a gas energy storage mechanism, a gas-driven reversing mechanism, a dielectric elastomer power generation sleeve and a floating structure.
In order to achieve the above purpose, the technical problems to be overcome mainly include: the energy efficiency of converting wave energy into gas compression is improved in the form of four-cylinder and multi-cylinder oscillating floats, high-pressure gas is stored and conveyed by adopting a reversing valve to effectively control pipeline high-pressure gas energy transmission, the high-pressure gas is used as driving force to realize that a gas-drive reversing mechanism repeatedly inflates a dielectric elastomer power generation sleeve, the efficient deformation of a dielectric elastomer film is ensured, and multi-module dielectric elastomer wave energy power generation is realized.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an oscillating float formula wave energy power generation facility based on dielectric elastomer, its includes that wave energy gathers structure, high pressure and inflates mechanism, gaseous energy storage mechanism, gas drive reversing mechanism, dielectric elastomer electricity generation sleeve and float the structure, its characterized in that:
the wave energy collecting structure comprises a floater and a connecting rod, the bottom of the connecting rod is connected with the floater, the top of the connecting rod is connected with a bowl-shaped piston of the high-pressure inflating mechanism, and in a use state, the floater fluctuates or swings up and down along with sea surface waves, so that the connecting rod moves and further drives the bowl-shaped piston to move up and down; the bowl-shaped piston moves up and down to squeeze air and make the air flow into the gas energy storage mechanism;
the gas-driven reversing mechanism is arranged at the top of the gas energy storage mechanism and comprises a large cylinder and a small cylinder, pistons are arranged in the two cylinders, the pistons in the two cylinders are connected through a driving shaft, pilot valve firing pins are arranged at two ends of the large cylinder, an air inlet pipeline and an air leakage pipeline are arranged at the periphery of the large cylinder, a reversing valve is arranged on the air inlet pipeline and communicated with an air outlet of the gas energy storage mechanism, each reversing valve is provided with a valve control pipeline, the valve control pipelines comprise a valve control air inlet pipeline and a valve control air outlet pipeline, and a low-pressure air inlet pipeline, a high-pressure air outlet pipeline and a sleeve gas transmission pipeline are arranged at the periphery of the small cylinder;
air inlets are formed in two sides of the dielectric elastomer power generation sleeve and connected with the small air cylinder through the sleeve air transmission pipeline; the dielectric elastomer power generation sleeve comprises a sleeve steel frame, a dielectric elastomer film and a pair of electrodes, wherein the inner layer and the outer layer of the sleeve steel frame are respectively provided with an arc notch for mounting the dielectric elastomer film, the inner layer and the outer layer of the dielectric elastomer film are embedded on the sleeve steel frame in a surrounding way along the arc notches, and the electrodes are arranged on the sleeve steel frame along the axial direction of the sleeve; the change of air pressure in the dielectric elastomer power generation sleeve under the use state further drives the dielectric elastomer film to deform, thereby realizing the conversion of mechanical energy and electric energy;
the floating structure enables the oscillating float type wave power generation device to float on the sea surface.
The beneficial technical effects directly brought by the technical scheme are as follows: the wave energy can be converted into gas energy through the oscillating floater structure and the high-pressure inflating mechanism, the storage and transportation of high-pressure gas are realized through the gas energy storage mechanism, the continuous and stable high-pressure gas is introduced into the gas drive reversing mechanism, the automatic reversing of a piston in the gas drive reversing mechanism is realized, and the dielectric elastomer sleeve is repeatedly inflated.
Furthermore, the high-pressure inflating mechanisms are arranged around the oscillating float type wave power generation device and are provided with four groups.
Further, the high-pressure inflating mechanism comprises an air inlet end cover, a cylindrical air cylinder, a bowl-shaped piston and a one-way valve, the bowl-shaped piston is arranged in the cylindrical air cylinder, an air inlet round hole is uniformly formed in the bottom of the air inlet end cover and connected with the cylindrical air cylinder through threads, and the one-way valve is arranged inside the cylindrical air cylinder.
Further, the check valve include the valve pocket, admit air and glue ring, switching valve body, reset spring, the end cover of giving vent to anger, the valve pocket is the cylinder shape, and the bottom is equipped with the fixed gluey ring that admits air of round hole, it is equipped with circular inlet port in the gluey ring to admit air, and the top is equipped with pit cooperation switching valve body, switching valve body and give vent to anger to fix between the end cover reset spring, reset spring cover sets up in the end cover of giving vent to anger in the outside of switching valve body extension rod, the end cover of giving vent to anger on evenly.
Further, gaseous energy storage mechanism connect through gas transmission pipeline high pressure mechanism of inflating, including gas storage cavity and check valve, the gas storage cavity include top surface, bottom surface and four sides, all be equipped with the air chamber air inlet in four sides, top surface central authorities are equipped with air chamber gas outlet, the mouth that loses heart of high pressure respectively, correspond air chamber air inlet department and be provided with the inlet chamber in the gas storage cavity, correspond the air chamber gas outlet and be provided with the air outlet chamber, the inlet chamber with go out the air chamber and separate by the baffle, four inlet chambers encircle around going out the air chamber, the baffle on set up the check valve.
Furthermore, the gas drive reversing mechanism is arranged at the top of the gas energy storage mechanism through a positioning base, and the positioning base and the gas energy storage mechanism are fixed through welding.
Furthermore, the floating structure comprises a buoyancy platform, a hollow buoyancy column, a damping plate and a gravity stabilizing weight, wherein the hollow buoyancy column is a hollow cylinder, the top of the hollow buoyancy column is connected with the buoyancy platform, and the bottom of the hollow buoyancy column is connected with the damping plate; the buoyancy platform is a hollow hemisphere, and the gas energy storage mechanism is welded and fixed on the top platform; the gravity stabilizing weight is connected with the lower portion of the damping plate and is of a hollow structure and used for filling sand to provide gravity.
Furthermore, the low-pressure air inlet pipeline, the high-pressure air outlet pipeline and the sleeve air delivery pipeline are all arranged on one-way valves, and the opening pressure of the one-way valves on the sleeve air delivery pipeline is smaller than that of the one-way valves on the high-pressure air outlet pipeline.
Furthermore, the gas pressure in the dielectric elastomer power generation sleeve is always maintained between the opening pressure of the one-way valve in the sleeve gas transmission pipeline and the opening pressure of the one-way valve in the high-pressure gas outlet pipeline.
Furthermore, the middle parts of the upper layer and the lower layer of the floater are provided with grooves, the diameter of the floater at the lower layer is smaller than that of the floater at the upper layer, and the connecting rod is connected with the floater through threads at the bottom.
The invention has the beneficial effects that:
the invention can collect wave energy, and the wave energy is converted into gas energy by connecting the oscillating floater with the inflating mechanism to drive the dielectric elastomer film to deform to generate electric energy, thereby converting the form of electric energy conversion by using a generator in the past.
Secondly, the air-driven reversing mechanism disclosed by the invention can realize automatic reversing by introducing continuous and stable air energy, and realizes repeated inflation of the dielectric elastomer film.
Thirdly, the dielectric elastomer power generation sleeve is convenient to manufacture, long in service life and easy to miniaturize.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of the construction of the apparatus of the present invention;
FIG. 2 is a schematic structural view of the wave energy collecting structure and the high-pressure inflating mechanism of the invention;
FIG. 3 is an assembled cross-sectional view of the high pressure pumping mechanism of the present invention;
FIG. 4 is a schematic structural view of the gas energy storage mechanism of the present invention;
FIG. 5 is an assembled cross-sectional view of the gas energy storage mechanism of the present invention;
FIG. 6 is a schematic view of the positioning base of the present invention;
FIG. 7 is an assembled cross-sectional view of the gas drive reversing mechanism of the present invention;
FIG. 8 is a schematic structural view of a dielectric elastomer power generation sleeve of the present invention;
FIG. 9 is a schematic view of the steel frame sleeve of the present invention;
in the figure: 1. the wave energy collecting structure comprises a wave energy collecting structure, 101, a floater, 102, a connecting rod, 2, a high-pressure inflating mechanism, 201, an air inlet end cover, 202, a cylindrical air cylinder, 203, a bowl-shaped piston, 204, a valve cavity, 205, an air inlet rubber ring, 206, an opening and closing valve body, 207, a reset spring, 208, an air outlet end cover, 2-1, an air inlet circular hole, 2-2, an air outlet, 3, an air transmission pipeline, 4, a gas energy storage mechanism, 401, an air storage cavity, 401A, an air inlet chamber, 401B, an air outlet chamber, 402, a check raft, 4-1, an air chamber air inlet, 4-2, an air chamber air outlet, 4-3, a high-pressure air outlet 5, a positioning base, 6, a gas driving reversing mechanism, 6001, an air inlet pipeline, 6002A, a right side valve air inlet pipeline, 6002B, a left side valve air inlet pipeline, 6003A, a right side valve air outlet pipeline, a left, Right side cylinder gas transmission pipeline, 6005B, left side cylinder gas transmission pipeline, 6006, gas release pipeline, 6007A, right side pilot valve, 6007B, left side pilot valve, 6008, piston, 6009A, right side low pressure gas inlet pipeline, 6009B, left side low pressure gas inlet pipeline, 6010A, right side high pressure gas outlet pipeline, 6010B, left side high pressure gas outlet pipeline, 6011A, right side sleeve gas transmission pipeline, 6011B, left side sleeve gas transmission pipeline, 7, dielectric elastomer power generation sleeve, 701, sleeve steel frame, 702, dielectric elastomer film, 703, electrode, 7-1, left side gas inlet, 7-2, right side gas inlet, 8, floating structure, 801, buoyancy platform, 802, hollow buoyancy column, 803, damping plate, 804, gravity stabilizing pendant, Q, gas.
Detailed Description
The invention provides an oscillating float type wave energy power generation device based on a dielectric elastomer, and in order to make the advantages and technical scheme of the invention clearer and clearer, the invention is described in detail with reference to specific embodiments.
Referring to fig. 1 to 3, an oscillating float type wave energy power generation device based on a dielectric elastomer comprises a wave energy collecting structure 1, a high-pressure inflating mechanism 2, a gas energy storage mechanism 4, a gas-driven reversing mechanism 6, a dielectric elastomer power generation sleeve 7 and a floating structure 8; the wave energy collecting structure 1 comprises a floater 101 and a connecting rod 102, wherein grooves are formed in the middle of the upper layer and the lower layer of the floater 101, the diameter of the floater on the lower layer is smaller than that of the floater on the upper layer, threads are arranged at two ends of the connecting rod 102, the bottom of the connecting rod is connected with the floater 101, and the top of the connecting rod is connected with a bowl-shaped piston 203 in the high-pressure inflating mechanism 2; the high-pressure inflating mechanism 2 is characterized in that the distribution device works around in parallel and comprises an air inlet end cover 201, a cylindrical air cylinder 202, a bowl-shaped piston 203 and a one-way valve, the bowl-shaped piston 203 is arranged in the cylindrical air cylinder 202, air inlet round holes 2-1 are uniformly formed in the bottom of the air inlet end cover 201 and are connected with the cylindrical air cylinder 202 through threads, the one-way valve fixed on the inner wall of the air cylinder is arranged in the cylindrical air cylinder 202 and comprises a valve cavity 204, an air inlet rubber ring 205, an opening and closing valve body 206, a reset spring 207 and an air outlet end cover 208, the valve cavity 204 is cylindrical, the round hole is formed in the bottom of the air inlet rubber ring 205, a circular air inlet hole is formed in the air inlet rubber ring 205, a pit matched opening and closing valve body 206 is arranged at the top of the opening and closing valve body 206, a spring 207 is fixed between the, and the air outlet end cover is uniformly provided with air outlets 2-2.
As shown in fig. 4 and 5, the gas energy storage mechanism 4 is connected with the high-pressure inflating mechanism 2 through the gas transmission pipeline 3, and comprises a gas storage cavity 401 and a check raft 402, wherein 4 side surfaces of the gas storage cavity are respectively provided with a gas chamber gas inlet 4-1, a gas chamber gas outlet 4-2 and a high-pressure air leakage port 4-3 are arranged in the center of the top of the gas storage cavity, gas Q is arranged in the gas storage cavity, a gas inlet chamber 401A is arranged in the gas storage cavity corresponding to the gas inlet, a gas outlet chamber 401B is arranged corresponding to the gas outlet, the gas inlet chamber 401A and the gas outlet chamber 401B are separated by a partition plate, the four gas inlet chambers 401A surround the gas outlet chamber 401B, and the partition plate between the gas inlet chamber 401A and the gas outlet chamber.
As shown in fig. 7 to 9, the gas-driven reversing mechanism 6 is disposed at the top of the gas energy storage mechanism 4 through a positioning base 5, the positioning base 5 and the gas energy storage mechanism 4 are fixed by welding, the gas-driven reversing mechanism 6 comprises two cylinders, a piston 6007 is disposed inside each of the two cylinders, the piston 6007 is connected by a driving shaft, pilot valve strikers are disposed at two ends of the large cylinder, an air inlet pipeline 6001 and an air outlet pipeline 6006 are disposed around the large cylinder, a reversing valve 6004 is disposed on the air inlet pipeline 6001 and is communicated with an air outlet 4-2 of the gas energy storage mechanism 4, each valve is provided with a valve control pipeline, and a low-pressure air inlet pipeline, a high-pressure air outlet pipeline (a right-side high-pressure air outlet pipeline 6010A and a left-side high-pressure air outlet pipeline 6010B and a sleeve air delivery pipeline are disposed around the small cylinder, each pipeline is provided with a one-way valve.
As shown in fig. 9, the dielectric elastomer power generation sleeve 7 has air inlets at two sides, namely a left air inlet 7-1 and a right air inlet 7-2, which are connected to the small air cylinder through an air transmission pipeline, and includes a sleeve steel frame 701, a pair of electrodes 703 and a dielectric elastomer film 702, the inner and outer layers of the sleeve steel frame 701 are respectively provided with an arc notch for installing the dielectric elastomer film 702, the dielectric elastomer film 702 is embedded in the sleeve steel frame 701 along the arc notch at the inner and outer layers, the inner and outer layers of the film are provided with the pair of electrodes 703 on the surface, and the electrodes 703 are arranged on the sleeve steel frame 701 along the axial direction of the sleeve.
The floating structure 8 comprises a buoyancy platform 801, a hollow buoyancy column 802, a damping plate 803 and a gravity stabilizing weight 804, wherein the hollow buoyancy column 802 is a hollow cylinder, the top of the hollow buoyancy column 802 is connected with the buoyancy platform 801, and the bottom of the hollow buoyancy column 802 is connected with the damping plate 803; the buoyancy platform 801 is a hollow hemisphere, and the top platform is fixedly welded with the gas energy storage mechanism 4; gravity stabilizing weight 804 is connected down to damping plate 803, improves device stability, gravity stabilizing weight 804 is hollow structure, packs sand and provides gravity.
The working principle and the working process of the invention are roughly as follows:
an oscillating float type wave energy power generation device based on dielectric elastomer, a buoyancy platform 801 and a hollow buoyancy column 802 provide buoyancy for the whole device, along with the up-and-down fluctuation of sea surface waves, an oscillating float 101 moves up and down along with the waves, a bowl-shaped piston 203 is driven to move up and down through a connecting rod 102, air enters a cylindrical air cylinder 202 through an air inlet end cover 201, and the bowl-shaped piston 203 moves up and down to extrude the air to flow through a one-way valve, enter an air transmission pipeline 3 through an air outlet 2-2 and further flow into an air inlet chamber 401A of an air energy storage mechanism 4; the four air inlet chambers are respectively communicated with the four high-pressure inflating mechanisms 2, air continuously enters the air inlet chamber 401A, when the air pressure is greater than the opening pressure of the check valve 402, the air flows into the air outlet chamber 401B and enters the air-driven reversing mechanism 6 through the air outlet 4-2 of the air chamber, and when the air pressure of the air outlet chamber is too high, the high-pressure air outlet 4-3 releases air to play a role in protection; as shown in fig. 8, the driving gas flows into the gas-driven reversing mechanism 6, enters the reversing raft gas chamber through the gas inlet pipeline 6001, enters the rodless cavity of the large cylinder through the gas delivery pipeline 6005A of the right cylinder, pushes the piston 6008 to move leftwards, meanwhile, the gas with the rod cavity passes through the reversing raft gas chamber through the gas delivery pipeline 6005B of the left cylinder, passes through the reversing raft gas chamber, and is discharged from the gas release pipeline 6006, when the piston 6008 moves to the left side and the right side of the large cylinder, the piston 6007B touches the left pilot raft, the valve body moves leftwards, the gas in the pilot raft gas chamber is pushed to be discharged through the left valve gas outlet pipeline 6003B, when the valve body moves leftwards to the tail end, the left valve gas outlet pipeline 6003B is closed, meanwhile, the left valve gas inlet pipeline 6002B is opened, and the driving gas enters; similarly, the reversing valve 6004 moves to the right, the driving gas enters the reversing raft gas chamber through the gas inlet pipeline 6001, enters the rod cavity of the large cylinder through the gas transmission pipeline 6005B of the left cylinder, pushes the piston 6008 to move to the right, meanwhile, the gas in the rodless cavity passes through the reversing raft gas chamber through the gas transmission pipeline 6005A of the right cylinder, and is discharged from the gas release pipeline 6006, when the piston 6008 moves to the right side of the large cylinder, the piston 6008 touches the right pilot raft 6007A, the valve body moves to the right, the gas in the pilot raft gas chamber is pushed to be discharged from the mechanism through the gas outlet pipeline 6003A of the right valve, when the valve body moves to the tail end to the right, the gas outlet pipeline 6003A of the right valve is closed, meanwhile, the gas inlet pipeline 6002A of the right valve is opened, the driving gas enters the reversing valve gas chamber through the gas inlet pipeline 6002; thereby driving the piston 6008 in the small cylinder to reciprocate repeatedly, when the piston 6008 moves leftwards, external gas enters a rod cavity of the small cylinder through a right low-pressure gas inlet pipeline 6009A, gas in a rodless cavity on the left side is continuously extruded, when the gas pressure is higher than the opening pressure of the one-way valve on the left sleeve gas transmission pipeline 6011B, the gas enters the dielectric elastomer power generation sleeve 7, the pressure is continuously increased with the continuous left movement of the piston 6008, the dielectric elastomer film on the sleeve is gradually expanded, when the gas pressure is higher than the opening pressure of the one-way valve on the left high-pressure gas outlet pipeline 6010B, the gas is discharged from the mechanism, reducing the gas pressure, closing the one-way valve on the left high-pressure gas outlet pipeline 6010B, opening the one-way valve on the left sleeve gas outlet pipeline 6011B, and maintaining the gas pressure in the dielectric elastomer power generation sleeve at a value smaller than the opening pressure of the one-way valve on the high-pressure gas outlet pipeline; when the piston 6008 moves rightwards, external gas enters a small cylinder rodless cavity through the left low-pressure gas inlet pipe 6009B, the gas pressures in the rodless cavity and the dielectric elastomer power generation sleeve are gradually reduced, the dielectric elastomer film is gradually contracted until the check valve on the left sleeve gas transmission pipe 6011B is closed, meanwhile, gas in the rod cavity on the right side is continuously extruded, when the gas pressure is greater than the opening pressure of the check valve on the right sleeve gas transmission pipe 6011A, the gas enters the dielectric elastomer power generation sleeve 7 again, at the moment, the pressure continues to increase along with the continuous rightward movement of the piston 6008, the dielectric elastomer film on the sleeve is gradually expanded again, and the repeated gas inflation of the dielectric elastomer power generation sleeve 7 is realized; the change of the air pressure in the sleeve further drives the dielectric elastomer film 702 to deform, when an external force acts on the dielectric elastomer film 702 to deform the dielectric elastomer film, power can be generated due to the change of the capacitance, the larger the deformation is, the stronger the power generation capacity is, and the conversion of mechanical energy and electric energy is realized.
Parts which are not described in the invention can be realized by adopting or referring to the prior art.
In the present invention, the orientations indicated by the "left" and the "right" are the orientation relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate that the apparatus must have a specific orientation, and thus, the present invention should not be construed as being limited thereto.
It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments described above without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.
Claims (10)
1. The utility model provides an oscillating float formula wave energy power generation facility based on dielectric elastomer, its includes that wave energy gathers structure, high pressure and inflates mechanism, gaseous energy storage mechanism, gas drive reversing mechanism, dielectric elastomer electricity generation sleeve and float the structure, its characterized in that:
the wave energy collecting structure comprises a floater and a connecting rod, the bottom of the connecting rod is connected with the floater, the top of the connecting rod is connected with a bowl-shaped piston of the high-pressure inflating mechanism, and in a use state, the floater fluctuates or swings up and down along with sea surface waves, so that the connecting rod moves and further drives the bowl-shaped piston to move up and down; the bowl-shaped piston moves up and down to squeeze air and make the air flow into the gas energy storage mechanism;
the gas-driven reversing mechanism is arranged at the top of the gas energy storage mechanism and comprises a large cylinder and a small cylinder, pistons are arranged in the two cylinders, the two pistons in the two cylinders are connected through a driving shaft, pilot valve firing pins are arranged at two ends of the large cylinder, an air inlet pipeline and an air leakage pipeline are arranged at the periphery of the large cylinder, a reversing valve is arranged on the air inlet pipeline and communicated with an air outlet of the gas energy storage mechanism, each reversing valve is provided with a valve control pipeline, the valve control pipelines comprise a valve control air inlet pipeline and a valve control air outlet pipeline, and a low-pressure air inlet pipeline, a high-pressure air outlet pipeline and a sleeve gas transmission pipeline are arranged at the periphery of the small cylinder;
air inlets are formed in two sides of the dielectric elastomer power generation sleeve and connected with the small air cylinder through the sleeve air transmission pipeline; the dielectric elastomer power generation sleeve comprises a sleeve steel frame, a dielectric elastomer film and a pair of electrodes, wherein the inner layer and the outer layer of the sleeve steel frame are respectively provided with an arc notch for mounting the dielectric elastomer film, the inner layer and the outer layer of the dielectric elastomer film are embedded on the sleeve steel frame in a surrounding way along the arc notches, and the electrodes are arranged on the sleeve steel frame along the axial direction of the sleeve; the change of air pressure in the dielectric elastomer power generation sleeve under the use state further drives the dielectric elastomer film to deform, thereby realizing the conversion of mechanical energy and electric energy;
the floating structure enables the oscillating float type wave power generation device to float on the sea surface.
2. The dielectric elastomer-based oscillating float-type wave energy power generation device of claim 1, wherein: the high-pressure inflating mechanism is arranged around the oscillating float type wave power generation device and is provided with four groups.
3. The dielectric elastomer-based oscillating float-type wave energy power generation device of claim 1, wherein: the high-pressure inflating mechanism comprises an air inlet end cover, a cylindrical air cylinder, a bowl-shaped piston and a one-way valve, the bowl-shaped piston is arranged in the cylindrical air cylinder, an air inlet round hole is uniformly formed in the bottom of the air inlet end cover and connected with the cylindrical air cylinder through threads, and the one-way valve is arranged in the cylindrical air cylinder.
4. The dielectric elastomer-based oscillating float-type wave energy power generation device of claim 3, wherein: the check valve include the valve pocket, admit air and glue ring, switching valve body, reset spring, the end cover of giving vent to anger, the valve pocket is the cylinder shape, and the bottom is equipped with the fixed ring that admits air of round hole, it is equipped with circular inlet port in the gluey ring to admit air, and the top is equipped with pit cooperation switching valve body, switching valve body and give vent to anger to fix between the end cover reset spring, reset spring cover sets up in the inside of the end cover of giving vent to anger in the outside of switching valve body extension rod, the end cover of giving vent to ange.
5. The dielectric elastomer-based oscillating float-type wave energy power generation device of claim 1, wherein: gaseous energy storage mechanism pass through gas transmission pipeline connection high pressure mechanism of inflating, including gas storage cavity and check valve, the gas storage cavity include top surface, bottom surface and four sides, all be equipped with the air chamber air inlet in four sides, top surface central authorities are equipped with air chamber gas outlet, the mouth that loses heart of high pressure respectively, correspond air chamber air inlet department and be provided with the inlet chamber in the gas storage cavity, correspond the air chamber gas outlet and be provided with the air outlet room, the inlet chamber with go out the air chamber and separate by the baffle, four inlet chambers encircle around going out the air chamber, the baffle on set up the check valve.
6. The dielectric elastomer-based oscillating float-type wave energy power generation device of claim 1, wherein: the gas drive reversing mechanism is arranged at the top of the gas energy storage mechanism through a positioning base, and the positioning base and the gas energy storage mechanism are fixed through welding.
7. The dielectric elastomer-based oscillating float-type wave energy power generation device of claim 1, wherein: the floating structure comprises a buoyancy platform, a hollow buoyancy column, a damping plate and a gravity stabilizing weight, wherein the hollow buoyancy column is a hollow cylinder, the top of the hollow buoyancy column is connected with the buoyancy platform, and the bottom of the hollow buoyancy column is connected with the damping plate; the buoyancy platform is a hollow hemisphere, and the gas energy storage mechanism is welded and fixed on the top platform; the gravity stabilizing weight is connected with the lower portion of the damping plate and is of a hollow structure and used for filling sand to provide gravity.
8. The dielectric elastomer-based oscillating float-type wave energy power generation device of claim 1, wherein: the low-pressure air inlet pipeline, the high-pressure air outlet pipeline and the sleeve air delivery pipeline are all arranged on one-way valves, and the opening pressure of the one-way valves on the sleeve air delivery pipeline is smaller than that of the one-way valves on the high-pressure air outlet pipeline.
9. The dielectric elastomer-based oscillating float-type wave energy power generation device of claim 1, wherein: the gas pressure in the dielectric elastomer power generation sleeve is always maintained between the opening pressure of the one-way valve in the sleeve gas transmission pipeline and the opening pressure of the one-way valve in the high-pressure gas outlet pipeline.
10. The dielectric elastomer-based oscillating float-type wave energy power generation device of claim 1, wherein: the floater is divided into an upper layer and a lower layer, the middle parts of the upper layer and the lower layer are provided with grooves, the diameter of the lower layer of the floater is smaller than that of the upper layer of the floater, and the connecting rod is connected with the floater through threads at the bottom.
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| CN113389689B (en) * | 2021-07-01 | 2022-06-07 | 河北建筑工程学院 | Wind power generation device based on dielectric elastomer |
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| US10190567B2 (en) * | 2014-10-28 | 2019-01-29 | Changchun University Of Science And Technology | Heavy hammer type wave power generation method and device |
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