CN114294148A - Wave energy power generation device arranged at dam - Google Patents
Wave energy power generation device arranged at dam Download PDFInfo
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- CN114294148A CN114294148A CN202111593667.3A CN202111593667A CN114294148A CN 114294148 A CN114294148 A CN 114294148A CN 202111593667 A CN202111593667 A CN 202111593667A CN 114294148 A CN114294148 A CN 114294148A
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- 238000010248 power generation Methods 0.000 title claims abstract description 49
- 238000013016 damping Methods 0.000 claims abstract description 18
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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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
- Y02E10/20—Hydro energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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Abstract
The invention discloses a wave energy power generation device arranged at a dam, which comprises an underwater base, a swing rod, a floater, a connecting rope and a power generation assembly arranged on a bank; the power generation assembly comprises a generator shell, a central shaft, a linear generator stator, a linear generator rotor and a damping spring; the rotor of the linear generator is fixedly sleeved on the central shaft and is positioned in the cavity of the stator of the linear generator, one end of the central shaft is connected with the connecting rope, the other end of the central shaft is connected with one end of the damping spring, and the other end of the damping spring is fixedly connected with the inner wall of the motor shell; the underwater base is fixed on the seabed, the lower part of the oscillating rod is hinged with the underwater base, and the floater is movably sleeved on the oscillating rod and is connected with the other end of the connecting rope. The device has simple structure, directly drives the linear generator, and reduces energy loss; the oscillating rod can oscillate around the underwater base, so that the sliding range of the floater on the oscillating rod is increased, and the energy extraction efficiency is improved; the power generation chamber is located on the shore and is easy to maintain.
Description
Technical Field
The invention belongs to the technical field of wave energy power generation devices, and particularly relates to a wave energy power generation device arranged at a dam.
Background
Wave energy is a clean renewable energy with huge energy, and the reasonable development and utilization of the wave energy have great significance for relieving the energy crisis and improving the environmental pollution problem.
Most of the existing wave energy power generation devices are arranged in the ocean, and the wave energy power generation efficiency is low due to the fluctuation instability of waves and the difference of wave heights; in addition, after the wave energy power generation device is damaged, the wave energy power generation device needs to be repaired at sea, so that the later maintenance cost is high. At being close to coast or breakwater department, the wave strikes the dam body after the reflection, forms the standing wave before the bank or in the front of the breakwater, and the wave height increases, and wave energy passes back after the reflection, has improved the quantity of wave, if can set up power generation facility here, will improve the generating efficiency greatly.
Disclosure of Invention
The invention aims to provide a wave energy power generation device arranged at a dam, and solves the technical problems that the wave energy power generation device arranged in the ocean in the prior art is low in power generation efficiency, needs to be repaired at sea after being damaged and is high in maintenance cost.
In order to solve the technical problems, the invention adopts the following technical scheme:
a wave energy power generation device arranged at a dam comprises an underwater base, a swing rod, a floater, a connecting rope and a power generation assembly arranged on the dam;
the power generation assembly comprises a generator shell, a central shaft, a linear generator stator, a linear generator rotor and a damping spring; wherein, the linear generator stator is fixedly arranged in the generator shell; the rotor of the linear generator is fixedly sleeved on the central shaft and is positioned in the cavity of the stator of the linear generator, one end of the central shaft is connected with the connecting rope, the other end of the central shaft is connected with one end of the damping spring, and the other end of the damping spring is fixedly connected with the inner wall of the motor shell;
the underwater base is fixed on the seabed close to the dam, the lower end of the oscillating rod is hinged with the underwater base through an oscillating arm movable joint, and the floater is movably sleeved on the oscillating rod, is connected with the other end of the connecting rope and can slide up and down along the oscillating rod.
In the invention, the floater floats on the sea surface and slides up and down along the oscillating rod along with the fluctuation of the waves. When waves fall back, the floater slides downwards along the oscillating rod, the rotor of the linear generator is pulled to move forwards through the connecting rope, and the damping spring is in a stretching state; when the wave crest comes, the floater slides upwards along the oscillating rod, and the linear generator is pulled to move backward under the action of the restoring force of the damping spring. Along with the fluctuation of waves, the stator of the linear generator does reciprocating motion, and the stator of the linear generator do relative motion in the process to generate electric energy.
The wave energy power generation device is arranged at the position of the dam, and the wave energy power generation device is based on the following reasons: firstly, standing waves are formed by the waves in front of a coast or a breakwater, an underwater base is placed at the antinode of the standing waves, the sliding range of a floater caused by wave height change is enlarged, namely, the stroke of the linear generator stator word movement is increased, and the power generation efficiency is improved. And secondly, the waves are reflected after impacting the dam body, standing waves are formed in front of the bank or the breakwater, the wave height is increased, the wave energy is transmitted back after reflection, namely, one wave is reflected and then generates one wave, the number of the waves is increased, and the power generation efficiency is greatly improved. And thirdly, the power generation assembly is arranged on the bank, so that seawater corrosion is reduced, the service life is prolonged, convenience is brought to maintenance, and the cost is low.
According to the invention, the lower end of the swing rod is hinged with the underwater base, the swing rod swings along with the impact of waves, the up-and-down sliding frequency of the floater is further increased, and the energy in the horizontal direction in the waves is utilized; and the up-and-down floating of the floater utilizes the energy in the vertical direction and the reverse direction in the waves, thereby greatly improving the conversion efficiency of the wave energy.
Further optimize, the swing rod top sets up first fixed pulley, connects the rope and passes through first fixed pulley and central axis connection. Through setting up first fixed pulley, reduce the friction energy consumption, and improve structural stability, prevent that damping spring and float from droing.
Further optimize, be provided with spacing subassembly on the embankment, connect the rope and pass through spacing subassembly and central axis connection.
Further optimize, spacing subassembly is the second fixed pulley. Through setting up the second fixed pulley, reduce the friction energy consumption, and be located the connecting rope section between second fixed pulley and the electricity generation subassembly and the coaxial setting of center pin, prevent that the center pin from taking place the card and hinder at the reciprocating motion in-process, improve structural stability, reduce the energy consumption.
Further preferably, a sliding chute is arranged on the oscillating rod along the length direction of the oscillating rod, the inner wall of the cavity of the floater protrudes outwards to form a bulge, and the bulge is movably clamped in the sliding chute;
or the surface of the oscillating rod protrudes outwards to form a strip-shaped bulge, the bulge is arranged along the length direction of the oscillating rod, the inner wall of the cavity of the floater is inwards sunken to form a groove, and the bulge is movably clamped in the sliding groove.
Through setting up arch and spout, prevent that the float from taking place phenomenons such as skew, card and hinder with the swinging arms in the motion process, improve structural stability, guarantee that the work of generating electricity smoothly goes on. The float is prevented from being separated from the swing lever by providing a stopper along the upper end of the swing lever.
Further optimize, the center pin both ends set up the stopper, and the inner wall of generator housing is provided with spacing draw-in groove along its length direction, and the movable card of stopper is established in spacing draw-in groove.
Through setting up the stopper, prevent that the center pin from breaking away from with generator housing at reciprocating motion in-process, improve structural stability.
Further optimization, the length of the rotor of the linear generator is smaller than that of the stator of the linear generator, and the generating efficiency is improved.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the power generation device, the wave energy is directly converted into the mechanical energy in a secondary energy conversion mode, the linear generator is directly driven, and the energy loss is reduced; the oscillating rod can oscillate around the underwater base, so that the sliding range of the floater on the oscillating rod is enlarged, and the energy extraction efficiency is improved. The wave strikes the dam body and then is reflected, forms the standing wave in the front of the bank or in front of the breakwater, the wave height is increased, and the wave energy is transmitted back after reflection, namely a wave is reflected and then generates a wave, so that the quantity of the wave is increased, and the power generation efficiency is greatly improved.
2. The power generation assembly is arranged on the bank, seawater corrosion is reduced, the service life is prolonged, and the power generation assembly is convenient to maintain and low in cost.
3. According to the invention, the lower end of the swing rod is hinged with the underwater base, the swing rod swings along with the impact of waves, the up-and-down sliding frequency of the floater is further increased, and the energy in the horizontal direction in the waves is utilized; and the up-and-down floating of the floater utilizes the energy in the vertical direction and the reverse direction in the waves, thereby greatly improving the conversion efficiency of the wave energy.
Drawings
Fig. 1 is a schematic structural diagram of the wave energy power generation device arranged at a dam according to the invention;
FIG. 2 is a schematic view of the construction of the sway bar and float of the present invention;
fig. 3 is a top view of fig. 2.
Detailed Description
The technical solution of the present invention is described in detail below, but the scope of the present invention is not limited to the embodiments.
As shown in fig. 1 to 3, a wave power generation apparatus provided at a dike includes an underwater base 1, a rocking bar 2, a float 4, a connecting rope 5, and a power generation module 7 provided on the dike.
The power generation assembly 7 comprises a power generator shell 10, a central shaft 11, a linear power generator stator 13, a linear power generator rotor 14 and a damping spring 15; wherein, the linear generator stator 13 is fixedly arranged in the generator shell 10; the linear generator rotor 14 is fixedly sleeved on the central shaft 11 and is positioned in the cavity of the linear generator stator 13, one end of the central shaft 11 is connected with the connecting rope 5, the other end of the central shaft is connected with one end of the damping spring 15, and the other end of the damping spring 15 is fixedly connected with the inner wall of the motor shell 10.
The underwater base 1 is fixed on the seabed close to a dam, the lower end of the oscillating rod 2 is hinged to the underwater base 1 through the oscillating arm movable joint 3, the floater 4 is movably sleeved on the oscillating rod 2 and is connected with the other end of the connecting rope 5 through the connecting ring 9, and the oscillating rod 2 can slide up and down.
In the invention, the floater floats on the sea surface and slides up and down along the oscillating rod 2 along with the fluctuation of the waves. When waves fall back, the floater slides downwards along the oscillating rod 2, the linear generator rotor 14 is pulled to move forwards through the connecting rope 5, and the damping spring 15 is in a stretching state; when the wave crest comes, the floater slides upwards along the oscillating rod 2, and pulls the linear generator rotor 14 to move after the phase is reached under the action of the restoring force of the damping spring 15. Along with the fluctuation of waves, the linear generator stator 13 makes reciprocating motion, and in the process, the linear generator stator 13 and the linear generator stator 13 make relative motion to generate electric energy.
The wave energy power generation device is arranged at the position of the dam, and the wave energy power generation device is based on the following reasons: firstly, standing waves are formed by the waves in front of the coast or the breakwater, the underwater base 1 is placed at the antinode of the standing waves, the sliding range of the floater caused by the change of the wave height is enlarged, namely, the stroke of the linear generator stator 13 for word movement is increased, and the power generation efficiency is improved. And secondly, the waves are reflected after impacting the dam body, standing waves are formed in front of the bank or the breakwater, the wave height is increased, the wave energy is transmitted back after reflection, namely, one wave is reflected and then generates one wave, the number of the waves is increased, and the power generation efficiency is greatly improved. And thirdly, the power generation assembly 7 is arranged on the bank, so that seawater corrosion is reduced, the service life is prolonged, convenience is brought to maintenance, and the cost is low.
According to the invention, the lower end of the swing rod 2 is hinged with the underwater base 1, the swing rod 2 swings along with the impact of waves, the up-and-down sliding frequency of the floater is further increased, and the energy in the horizontal direction in the waves is utilized; and the up-and-down floating of the floater utilizes the energy in the vertical direction and the reverse direction in the waves, thereby greatly improving the conversion efficiency of the wave energy.
In this embodiment, a first fixed pulley 8 is disposed on the top of the swing lever 2, and the connecting rope 5 is connected to the central shaft 11 through the first fixed pulley 8. Through setting up first fixed pulley 8, reduce the friction energy consumption, and improve structural stability, prevent that damping spring 15 and float from droing.
In this embodiment, a limiting component is arranged on the bank, and the connecting rope 5 is connected with the central shaft 11 through the limiting component.
In this embodiment, the limiting component is a second fixed pulley 6. Through setting up second fixed pulley 6, reduce the friction energy consumption, and be located the connecting rope section between second fixed pulley 6 and the electricity generation subassembly 7 and the coaxial setting of center pin 11, prevent that center pin 11 from taking place the card and hindering in the reciprocating motion in-process, improve structural stability, reduce the energy consumption.
In this embodiment, the surface of the swing rod 2 protrudes outward to form a strip-shaped protrusion, the protrusion is arranged along the length direction of the swing rod 2, the inner wall of the cavity of the float 4 is recessed inward to form a groove, and the protrusion is movably clamped in the chute.
Through setting up arch and spout, prevent that the float from taking place phenomenons such as skew, card and hinder with the swinging arms in the motion process, improve structural stability, guarantee that the work of generating electricity smoothly goes on. The float is prevented from being detached from the rocking lever by providing a stopper along the upper end of the rocking lever 2.
In other embodiments, the oscillating rod 2 is provided with a sliding groove along the length direction thereof, the inner wall of the cavity of the float 4 protrudes outwards to form a protrusion, and the protrusion is movably clamped in the sliding groove.
In this embodiment, two ends of the central shaft 11 are provided with limit blocks 12, the inner wall of the generator housing 10 is provided with limit slots along the length direction thereof, and the limit blocks 12 are movably clamped in the limit slots.
Through setting up stopper 12, prevent that center pin 11 from breaking away from with generator housing 10 at reciprocating motion in-process, improve structural stability.
A linear bearing is fixedly arranged in the generator housing 10, and the linear bearing is sleeved at the end of the central shaft. The linear bearing has small friction and is relatively stable, does not change along with the speed of the bearing, can obtain stable linear motion with high sensitivity and high precision, reduces energy consumption, and is beneficial to the normal work of a power generation device.
In the embodiment, the length of the linear generator rotor 14 is smaller than that of the linear generator stator 13, so that the power generation efficiency is improved.
The above examples are merely illustrative for clarity and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (7)
1. The utility model provides a set up wave energy power generation facility in dykes and dams department which characterized in that: the underwater power generation device comprises an underwater base (1), a swinging rod (2), a floater (4), a connecting rope (5) and a power generation assembly (7) arranged on a bank;
the power generation assembly (7) comprises a power generator shell (10), a central shaft (11), a linear power generator stator (13), a linear power generator rotor (14) and a damping spring (15); wherein, the linear generator stator (13) is fixedly arranged in the generator shell (10); the linear generator rotor (14) is fixedly sleeved on the central shaft (11) and is positioned in a cavity of the linear generator stator (13), one end of the central shaft (11) is connected with the connecting rope (5), the other end of the central shaft is connected with one end of the damping spring (15), and the other end of the damping spring (15) is fixedly connected with the inner wall of the motor shell (10);
the underwater base (1) is fixed on the seabed close to a dam, the lower end of the oscillating rod (2) is hinged to the underwater base (1) through the swing arm movable joint (3), the floater (4) is movably sleeved on the oscillating rod (2) and connected with the other end of the connecting rope (5), and the underwater base can slide up and down along the oscillating rod (2).
2. The wave energy power generation device arranged at a dam according to claim 1, wherein: the top of the swing rod (2) is provided with a first fixed pulley (8), and the connecting rope (5) is connected with the central shaft (11) through the first fixed pulley (8).
3. The wave energy power generation device arranged at a dam according to claim 2, wherein: the embankment is provided with a limiting assembly, and the connecting rope (5) is connected with the central shaft (11) through the limiting assembly.
4. The wave energy power generation device arranged at a dam according to claim 3, wherein: the limiting component is a second fixed pulley (6).
5. The wave energy power generation device arranged at a dam according to claim 2, wherein: a sliding groove is formed in the oscillating rod (2) along the length direction of the oscillating rod, the inner wall of the cavity of the floater (4) protrudes outwards to form a bulge, and the bulge is movably clamped in the sliding groove;
or the surface of the oscillating rod (2) protrudes outwards to form a strip-shaped bulge, the bulge is arranged along the length direction of the oscillating rod (2), the inner wall of the cavity of the floater (4) is inwards sunken to form a groove, and the bulge is movably clamped in the chute.
6. The wave energy power generation device arranged at a dam according to claim 1, wherein: the generator is characterized in that limiting blocks (12) are arranged at two ends of the central shaft (11), limiting clamping grooves are formed in the inner wall of the generator shell (10) along the length direction of the generator shell, and the limiting blocks (12) are movably clamped in the limiting clamping grooves.
7. The wave energy power generation device arranged at a dam according to claim 1, wherein: the length of the rotor (14) of the linear generator is smaller than that of the stator (13) of the linear generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111593667.3A CN114294148A (en) | 2021-12-24 | 2021-12-24 | Wave energy power generation device arranged at dam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111593667.3A CN114294148A (en) | 2021-12-24 | 2021-12-24 | Wave energy power generation device arranged at dam |
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| CN114294148A true CN114294148A (en) | 2022-04-08 |
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| CN202111593667.3A Pending CN114294148A (en) | 2021-12-24 | 2021-12-24 | Wave energy power generation device arranged at dam |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994015A (en) * | 2014-01-28 | 2014-08-20 | 浙江海洋学院 | Sea floating platform floater type wave-activated generator |
| KR101642941B1 (en) * | 2015-10-27 | 2016-07-29 | 임채경 | Wave power generation apparatus using a wire power transmission-type |
| CN105840407A (en) * | 2016-03-14 | 2016-08-10 | 浙江海洋学院 | Floating type ocean power generation device |
| CN106640498A (en) * | 2016-12-16 | 2017-05-10 | 中国海洋大学 | Novel wave power generation device |
| CN210118224U (en) * | 2018-12-24 | 2020-02-28 | 武汉理工大学 | Two-degree-of-freedom wave power generation device |
| CN112128046A (en) * | 2020-09-24 | 2020-12-25 | 南昌大学 | Wave energy power generation device |
-
2021
- 2021-12-24 CN CN202111593667.3A patent/CN114294148A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994015A (en) * | 2014-01-28 | 2014-08-20 | 浙江海洋学院 | Sea floating platform floater type wave-activated generator |
| KR101642941B1 (en) * | 2015-10-27 | 2016-07-29 | 임채경 | Wave power generation apparatus using a wire power transmission-type |
| CN105840407A (en) * | 2016-03-14 | 2016-08-10 | 浙江海洋学院 | Floating type ocean power generation device |
| CN106640498A (en) * | 2016-12-16 | 2017-05-10 | 中国海洋大学 | Novel wave power generation device |
| CN210118224U (en) * | 2018-12-24 | 2020-02-28 | 武汉理工大学 | Two-degree-of-freedom wave power generation device |
| CN112128046A (en) * | 2020-09-24 | 2020-12-25 | 南昌大学 | Wave energy power generation device |
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