CN112177838A - Bank type low-density wave power generation device - Google Patents
Bank type low-density wave power generation device Download PDFInfo
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- CN112177838A CN112177838A CN202010952057.7A CN202010952057A CN112177838A CN 112177838 A CN112177838 A CN 112177838A CN 202010952057 A CN202010952057 A CN 202010952057A CN 112177838 A CN112177838 A CN 112177838A
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- connecting rod
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- water column
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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
- F03B13/141—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 with a static energy collector
- F03B13/142—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 with a static energy collector which creates an oscillating water column
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention relates to a bank type low-density wave energy power generation device, and belongs to the technical field of new energy. The air chamber of this device is the empty storehouse structure of fixing on the coast, half of it submerges in the sea water, and submerge the part in the sea water open, and with ocean UNICOM, under the drive of wave, the water column in the air chamber can be made up and down fluctuation motion, then drive float and air on the liquid level also to be made up and down fluctuation motion, thereby make the kinetic energy that air and float carried convert into the electric energy through the generator, rely on resonance to strengthen the motion of water column, when the period of wave is close with the natural cycle of water column, the wave just can take place resonance phenomenon with the water column in the air chamber, and resonance makes the oscillation amplitude greatly increased of water column, and then also make the utilization efficiency of wave energy improve by a wide margin.
Description
Technical Field
The invention relates to a bank type low-density wave energy power generation device, and belongs to the technical field of new energy.
Background
Ocean wave energy is an energy source with high quality, is widely available in the ocean, is limited by space and time, can be conveniently utilized, and can easily obtain considerable cheap energy mainly comprising electric energy through various wave energy conversion devices. The wave energy is mainly used in the field of converting the wave energy into electric energy for people to use. Wave energy power generation generally refers to that various wave energy conversion devices are utilized to convert infinite wave energy in the ocean into electric energy which can be utilized and output after being subjected to several-stage conversion.
Wave energy power generation technology can be divided into the following according to the working principle: oscillating water column technology, floater type technology and wave crossing technology. When the oscillating water column power generation device works, the water column in the air chamber makes a fluctuation motion under the driving of waves, and the air connected with the air chamber drives the turbine power generation device to convert into electric energy under the driving of the water column. The float type technology is provided with a float device which can do reciprocating motion along with wave motion, and the reciprocating motion of the float can drive a mechanical system or a hydraulic system to convert wave energy into mechanical energy and finally drive a generator to generate electricity. The wave-crossing technology is that the water level difference generated by introducing waves into a higher water level by devices such as a contraction wave channel and the like is utilized to drive a water turbine set to generate electricity.
The wave energy conversion device is divided into a fixed type and a floating type from a fixed mode, and the main structure of the fixed type wave energy conversion device is fixed and does not move along with waves; the main structure of a floating wave energy conversion device floats on the surface of the water and is typically connected to the sea floor by a mooring system. The fixed wave energy conversion device can be divided into a shore type and an offshore type according to the construction site, and the shore type wave energy conversion device is fixed on the shore, so that the fixed wave energy conversion device has the advantages of convenience in management and maintenance and convenience in power transmission, and the efficiency is generally higher when site selection and the design of the wave energy conversion device are proper; the disadvantage is that the shore wave energy flow density tends to be small. The offshore wave energy conversion device is fixed on the seabed, and has the advantages that the energy flow density of surrounding wave energy is high, but a part of the wave energy is wound to the back of the device; the defects are low conversion efficiency and high management and power transmission cost.
The construction cost of a fixed wave energy conversion device is greatly influenced by the surrounding environmental factors (such as water depth, geology, gradient, offshore distance and the like), and the construction cost is often higher, so that the fixed wave energy conversion device is not adopted. The research is focused on floating wave energy conversion devices.
The floating wave energy conversion device has the advantages that the construction difficulty is smaller than that of a fixed type, and the floating wave energy conversion device can be generally constructed in a shipyard, launched into water and then placed in a proper place; the floating wave energy conversion device is generally installed at a position far away from the shore, and the wave energy flow density is high. However, the disadvantages are that the efficiency is generally not as high as that of a fixed wave energy conversion device, the structure, the anchoring system and the transmission line are easy to damage when large waves are encountered, and the cost is related to the electric power transmission distance and the requirements on the structure and the anchoring system.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the problem of small wave energy density in most coastal areas, a shore type low-density wave energy power generation device is provided.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a shore type low-density wave power generation device comprises an air chamber 1, a generator 2, a generator support 3, a shore 4, a floater 5, a chain 6, a fixed box 7, a linear generator 8, an oscillating water column 9 and waves 10.
And a left transducer 11 and a right transducer 12 are distributed on the left side and the right side inside the floater 5.
The left transduction device comprises a left gravity ball 11-1, a left fixed rod 11-2, a left connecting rod 11-3, a left supporting rod 11-4, a left short connecting rod 11-5, a left stator 11-6, a left rotor 11-7, a left spring 11-8 and a left stator fixed rod 11-9, wherein the left gravity ball 11-1 is connected with the right end of the left connecting rod 11-3 through the left fixed rod 11-2, the top end of the left supporting rod 11-4 is connected with the center of the left connecting rod 11-3, the bottom end of the left supporting rod 11-4 is fixed at the bottom of a floater 5, the top end of the left short connecting rod 11-5 is connected with the left end of the left connecting rod 11-3, the bottom end of the left short connecting rod 11-5 is connected with the left stator 11-6, and the left rotor 11-7 is positioned below the left stator 11-6, is fixed at the bottom of the floater through a left spring 11-8; the right transduction device 12 consists of a right gravity ball 12-1, a right fixed rod 12-2, a right connecting rod 12-3, a right supporting rod 12-4, a right short connecting rod 12-5, a right stator 12-6, a right rotor 12-7, a right spring 12-8 and a right stator fixed rod 12-9, wherein the right gravity ball 12-1 is connected with the left end of the right connecting rod 12-3 through the right fixed rod 12-2, the top end of the right supporting rod 12-4 is connected with the center of the right connecting rod 12-3, the bottom end of the right supporting rod 12-4 is fixed at the bottom of the floater 5, the top end of the right short connecting rod 12-5 is connected with the right end of the right connecting rod 12-3, the bottom end of the right short connecting rod 12-5 is connected with the right stator 12-6, the right rotor 12-7 is positioned below the right stator, is fixed at the bottom of the float by a right spring 12-8. The linear generator is composed of an upper primary frame 13, a lower primary frame 14, a left secondary frame 15, a right secondary frame 16, a permanent magnet 17 and a thick winding coil 18.
The upper primary frame 13 and the lower primary frame 14 are respectively located right above and right below the permanent magnet, the distance between the upper primary frame 13 and the permanent magnet and the distance between the lower primary frame 14 and the permanent magnet are both 2-4 mm, the left secondary frame 15 and the right secondary frame 16 are respectively located on the left side and the right side of the permanent magnet 17, and the left secondary frame and the right secondary frame are uniformly distributed on two sides of an inner gap of the upper primary frame 13 and the lower primary frame 14 around the thick coil 18.
Compared with other technologies, the invention has the beneficial effects that:
the linear generator is used as a final energy conversion device to prepare the built-in wave energy power generation device, the linear generator is low in cost, free of pollution, low in noise and easy to maintain, and parts such as bearings and the like are not arranged in the parts forming the linear generator, so that the linear generator is free of lubrication in use, low in noise and free of pollution to the environment. The linear generator has the advantages that the rotors of the linear generator are generally directly connected to an external power source, so that a transmission mechanism between the rotors can be omitted, the production and maintenance cost is reduced, the linear generator can have good protection performance and can work under severe environmental conditions, the linear generator adopts an open structure, the linear generator has good heat dissipation performance and strong work bearing capacity, the service life of the linear generator can be prolonged, the linear generator can be used in multiple sets in parallel, and interference can not be generated, so that the size and the model of the linear generator can be selected in a targeted manner according to the actual conditions of the working environment and the space, the space utilization rate can be improved to the maximum extent, and the energy conversion rate is improved. Under the combined action of wind pressure, gravity, water pressure, inertia of the water surface and the like, periodic oscillation waves are generated on the water surface, wave energy is kinetic energy and potential energy held by the waves, and as the air chamber is an empty bin structure fixed on the coast, one half of the water is submerged in the sea water, and the part submerged in the sea water is open and communicated with the sea, under the drive of the waves, the water column in the air chamber can do up-and-down fluctuation motion, and then the floater on the liquid level and the air are driven to do up-and-down fluctuation motion, so that the kinetic energy of the air and the floater is converted into electric energy through the generator, the movement of the water column is strengthened by means of resonance, when the wave period is close to the natural period of the water column, the wave can generate resonance phenomenon with the water column in the air chamber, and resonance enables the oscillation amplitude of the water column to be greatly increased, and further enables the utilization efficiency of wave energy to be greatly improved.
Drawings
Fig. 1 is an overall configuration diagram of the present apparatus.
Fig. 2 is a view showing the structure of the float.
Fig. 3 is a diagram of the left transducer assembly.
Fig. 4 is a diagram of a right transducer assembly.
Fig. 5 is a structural view of a linear generator.
In the figure: 1. air chamber, 2, generator, 3, generator support, 4, coast, 5, floater, 6, chain, 7, fixed box, 8, linear generator, 9, oscillating water column, 10, wave, 11, left transduction device, 11-1, left gravity ball, 11-2, left fixed connecting rod, 11-3, left connecting rod, 11-4, left support rod, 11-5, left short connecting rod, 11-6, left stator, 11-7, left rotor, 11-8, left spring, 12, right transduction device, 12-1, right gravity ball, 12-2, right fixed connecting rod, 12-3, right connecting rod, 12-4, right support rod, 12-5, right short connecting rod, 12-6, right left stator, 12-7, right rotor, 12-8, right spring, 13, upper primary frame, 14. lower primary frame, 15, left secondary frame, 16, right secondary frame, 17, permanent magnet, 18, thick coil.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. 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, the shore type low-density wave power generation device comprises an air chamber 1, a generator 2, a generator bracket 3, a coast 4, a floater 5, a chain 6, a fixed box 7, a linear generator 8, an oscillating water column 9 and waves 10. Air chamber 1 be located the top on coast 4, the generator is located on the generator support 3 on air chamber 1 right side, oscillating water column 9 is located air chamber 1's inside, float 5 floats on the oscillating water column surface to be connected with fixed case through the chain, fixed case is fixed in air chamber 1 bottom, linear generator 8 is located the inside centre of fixed case 7, wave 10 is located air chamber 1 outside left side.
As shown in fig. 2, 3 and 4, a left transducer 11 and a right transducer 12 are distributed on the left and right sides inside the float 5. The left transduction device comprises a left gravity ball 11-1, a left fixed rod 11-2, a left connecting rod 11-3, a left supporting rod 11-4, a left short connecting rod 11-5, a left stator 11-6, a left rotor 11-7, a left spring 11-8 and a left stator fixed rod 11-9, wherein the left gravity ball 11-1 is connected with the right end of the left connecting rod 11-3 through the left fixed rod 11-2, the top end of the left supporting rod 11-4 is connected with the center of the left connecting rod 11-3, the bottom end of the left supporting rod 11-4 is fixed at the bottom of a floater 5, the top end of the left short connecting rod 11-5 is connected with the left end of the left connecting rod 11-3, the bottom end of the left short connecting rod 11-5 is connected with the left stator 11-6, and the left rotor 11-7 is positioned below the left stator 11-6, is fixed at the bottom of the floater through a left spring 11-8; the right transduction device 12 consists of a right gravity ball 12-1, a right fixed rod 12-2, a right connecting rod 12-3, a right supporting rod 12-4, a right short connecting rod 12-5, a right stator 12-6, a right rotor 12-7, a right spring 12-8 and a right stator fixed rod 12-9, wherein the right gravity ball 12-1 is connected with the left end of the right connecting rod 12-3 through the right fixed rod 12-2, the top end of the right supporting rod 12-4 is connected with the center of the right connecting rod 12-3, the bottom end of the right supporting rod 12-4 is fixed at the bottom of the floater 5, the top end of the right short connecting rod 12-5 is connected with the right end of the right connecting rod 12-3, the bottom end of the right short connecting rod 12-5 is connected with the right stator 12-6, the right rotor 12-7 is positioned below the right stator, is fixed at the bottom of the float by a right spring 12-8.
As shown in fig. 5, the linear generator is composed of an upper primary frame 13, a lower primary frame 14, a left secondary frame 15, a right secondary frame 16, a permanent magnet 17, and a thick winding coil 18. The upper primary frame 13 and the lower primary frame 14 are respectively located right above and right below the permanent magnet, the distance between the upper primary frame 13 and the permanent magnet and the distance between the lower primary frame 14 and the permanent magnet are both 2-4 mm, the left secondary frame 15 and the right secondary frame 16 are respectively located on the left side and the right side of the permanent magnet 17, and the left secondary frame and the right secondary frame are uniformly distributed on two sides of an inner gap of the upper primary frame 13 and the lower primary frame 14 around the thick coil 18.
Under the combined action of wind pressure, gravity, water pressure, inertia of the water surface and the like, periodic oscillation waves are generated on the water surface, wave energy is kinetic energy and potential energy held by the waves, because the air chamber 1 is an empty bin structure fixed on the coast 4, one half of the air chamber is submerged in seawater, and the part submerged in the seawater is open and communicated with the ocean, under the driving of the waves 4, the water column in the air chamber 1 can do up-and-down fluctuation motion, so that the floater 5 on the liquid surface and the air are driven to do up-and-down fluctuation motion, so that the kinetic energy carried by the air and the floater 5 is converted into electric energy through a generator, the motion of the water column is enhanced by means of resonance, when the period of the waves is close to the inherent period of the water column, the waves can resonate with the water column in the air chamber, and the oscillation amplitude of the water column is greatly increased by means of resonance, and further greatly improves the utilization efficiency of wave energy.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (7)
1. A shore type low-density wave power generation device comprises an air chamber 1, a generator 2, a generator support 3, a shore 4, a floater 5, a chain 6, a fixed box 7, a linear generator 8, an oscillating water column 9 and waves 10.
2. The shore-based low-density wave energy power generation device according to claim 1, wherein: air chamber 1 be located the top on coast 4, the generator is located on the generator support 3 on air chamber 1 right side, oscillating water column 9 is located air chamber 1's inside, float 5 floats on the oscillating water column surface to be connected with fixed case through the chain, fixed case is fixed in air chamber 1 bottom, linear generator 8 is located the inside centre of fixed case 7, wave 10 is located air chamber 1 outside left side.
3. The shore-based low-density wave energy power generation device according to claim 1, wherein: and a left transducer 11 and a right transducer 12 are distributed on the left side and the right side inside the floater 5.
4. A shore-based low density wave energy power plant according to claim 3, characterized in that: the left transduction device comprises a left gravity ball 11-1, a left fixed rod 11-2, a left connecting rod 11-3, a left supporting rod 11-4, a left short connecting rod 11-5, a left stator 11-6, a left rotor 11-7, a left spring 11-8 and a left stator fixed rod 11-9, wherein the left gravity ball 11-1 is connected with the right end of the left connecting rod 11-3 through the left fixed rod 11-2, the top end of the left supporting rod 11-4 is connected with the center of the left connecting rod 11-3, the bottom end of the left supporting rod 11-4 is fixed at the bottom of a floater 5, the top end of the left short connecting rod 11-5 is connected with the left end of the left connecting rod 11-3, the bottom end of the left short connecting rod 11-5 is connected with the left stator 11-6, and the left rotor 11-7 is positioned below the left stator 11-6, is fixed at the bottom of the floater through a left spring 11-8; the right transduction device 12 consists of a right gravity ball 12-1, a right fixed rod 12-2, a right connecting rod 12-3, a right supporting rod 12-4, a right short connecting rod 12-5, a right stator 12-6, a right rotor 12-7, a right spring 12-8 and a right stator fixed rod 12-9, wherein the right gravity ball 12-1 is connected with the left end of the right connecting rod 12-3 through the right fixed rod 12-2, the top end of the right supporting rod 12-4 is connected with the center of the right connecting rod 12-3, the bottom end of the right supporting rod 12-4 is fixed at the bottom of the floater 5, the top end of the right short connecting rod 12-5 is connected with the right end of the right connecting rod 12-3, the bottom end of the right short connecting rod 12-5 is connected with the right stator 12-6, the right rotor 12-7 is positioned below the right stator, is fixed at the bottom of the float by a right spring 12-8.
5. The shore-based low-density wave energy power generation device according to claim 1, wherein: the linear generator is composed of an upper primary frame 13, a lower primary frame 14, a left secondary frame 15, a right secondary frame 16, a permanent magnet 17 and a thick winding coil 18.
6. A shore-based low-density wave energy power generation device according to claim 5, characterized in that: the upper primary frame 13 and the lower primary frame 14 are respectively located right above and right below the permanent magnet, the distance between the upper primary frame 13 and the permanent magnet and the distance between the lower primary frame 14 and the permanent magnet are both 2-4 mm, the left secondary frame 15 and the right secondary frame 16 are respectively located on the left side and the right side of the permanent magnet 17, and the left secondary frame and the right secondary frame are uniformly distributed on two sides of an inner gap of the upper primary frame 13 and the lower primary frame 14 around the thick coil 18.
7. The shore-based low-density wave energy power generation device according to claim 1, wherein: air chamber 1 be the empty storehouse structure of fixing on coast 4, half submerges in the sea water, and with ocean UNICOM, under the drive of wave 10, oscillating water column 9 in the air chamber 1 can be the up-and-down fluctuation motion, then drive float 5 and the up-and-down fluctuation motion of air on the liquid level also, thereby make the kinetic energy that air and float 5 carried convert into the electric energy through generator 2 and linear generator 8, rely on resonance to strengthen oscillating water column 9's motion, when wave 10's cycle is close with oscillating water column 9's natural cycle, wave 10 just can take place resonance phenomenon with oscillating water column 9 in the air chamber, resonance makes oscillating water column 9's oscillation amplitude increase, thereby make wave 10's utilization efficiency improve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010952057.7A CN112177838A (en) | 2020-09-11 | 2020-09-11 | Bank type low-density wave power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010952057.7A CN112177838A (en) | 2020-09-11 | 2020-09-11 | Bank type low-density wave power generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112177838A true CN112177838A (en) | 2021-01-05 |
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ID=73920598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010952057.7A Withdrawn CN112177838A (en) | 2020-09-11 | 2020-09-11 | Bank type low-density wave power generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112177838A (en) |
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2020
- 2020-09-11 CN CN202010952057.7A patent/CN112177838A/en not_active Withdrawn
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Application publication date: 20210105 |
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