CN115095470B - Exponentially arranged oscillating water column type wave energy device and arrangement method thereof - Google Patents
Exponentially arranged oscillating water column type wave energy device and arrangement method thereof Download PDFInfo
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- CN115095470B CN115095470B CN202210743390.6A CN202210743390A CN115095470B CN 115095470 B CN115095470 B CN 115095470B CN 202210743390 A CN202210743390 A CN 202210743390A CN 115095470 B CN115095470 B CN 115095470B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims abstract description 7
- 230000005611 electricity Effects 0.000 claims abstract description 13
- 238000010248 power generation Methods 0.000 abstract description 8
- 230000010355 oscillation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
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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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- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses an exponentially arranged oscillating water column type wave energy device and an arranging method thereof, comprising a plurality of oscillating water column type wave energy devices fixed at the bottom of water, wherein the distance between a first oscillating water column type wave energy device and a second oscillating water column type wave energy device is a 0 Along the wave incident directionThe distance between the other two adjacent oscillating water column type wave energy devices is equal to a 0 Is in an exponential relationship; the oscillating water column type wave energy device comprises an air chamber structure, a turbine and an electricity storage device; the bottom of the air chamber structure is provided with a water inlet, the turbine is arranged in the air chamber structure, and the electricity storage device is connected with the turbine. Due to the continuous wave trapping function, incident waves with different frequencies can be trapped at different positions when passing through the gradient array of the oscillating water column type wave energy device, wave energy is limited near the position and is obviously amplified, and the oscillating water column type wave energy device is placed at a wave energy concentration position, so that the power generation efficiency of the device is improved.
Description
Technical Field
The invention relates to a wave energy power generation device, in particular to an exponentially arranged oscillating water column type wave energy device and an arrangement method thereof.
Background
Wave energy is a key field of research on new energy sources at sea. There are commonly known oscillating water columns, oscillating floats, and wave energy devices of the surmounting type. The oscillating water column type wave energy device has better capturing performance near resonance waves and weaker capturing capability for incident waves in a certain frequency range, and the mass production of the oscillating water column type wave energy device is limited. Meanwhile, for most wave energy utilization technologies, the isolated device has limited power, and a plurality of devices are formed into an array to form a wave power generation field, so that the wave power generation field is the basis for large-scale commercial utilization and grid-connected power supply. The array layout is a key factor influencing the performance of the wave power generation field, and the array power generation power can be remarkably improved by optimizing the array type. The current wave energy array layout mostly depends on experience to give a plurality of preset array types, and has certain limitations by comparing and optimizing or directly applying an algorithm on the basis of the comparison and optimizing for a large number of trial calculations.
Disclosure of Invention
The invention aims to overcome the defects and the shortcomings of the prior art, provides an oscillating water column type wave energy device in exponential arrangement, and improves the wave energy conversion efficiency and the effective frequency bandwidth.
Another object of the present invention is to provide an exponential arrangement method of an oscillating water column wave energy device.
The aim of the invention can be achieved by the following technical scheme: an oscillating water column type wave energy device which is arranged in an index way,
comprises a plurality of oscillating water column type wave energy devices fixed at the water bottom, wherein the distance between the first oscillating water column type wave energy device and the second oscillating water column type wave energy device is a 0 Along the wave incidence direction, the distance between the other two adjacent oscillating water column type wave energy devices is equal to a 0 Is in an exponential relationship;
the oscillating water column type wave energy device comprises an air chamber structure, a turbine and an electricity storage device; the bottom of the air chamber structure is provided with a water inlet, the turbine is arranged in the air chamber structure, and the electricity storage device is connected with the turbine.
Further, the distance between two adjacent oscillating water column type wave energy devices is
wherein ,a0 For the distance between the first and the second oscillating water column type wave energy devices, alpha is an exponential gradient parameter, and x n+1 Represents the abscissa of the (n+1) th oscillating water column type wave energy device, and the abscissa x of the first oscillating water column type wave energy device 1 ＝0。
Further, a 0 25m.
Further, α is 0.002.
Further, the radius of the oscillating water column type wave energy device is 2m.
Further, the size parameters of the oscillating water column type wave energy devices are consistent.
Another object of the present invention can be achieved by the following technical scheme: an index arrangement method of an oscillating water column type wave energy device comprises the following steps:
fixing a plurality of oscillating water column type wave energy devices at the bottom of water;
the distance between the first oscillating water column type wave energy device and the second oscillating water column type wave energy device is a 0 Along the wave incidence direction, the distance between the other two adjacent oscillating water column type wave energy devices is equal to a 0 Is in an exponential relationship.
Further, the distance between two adjacent oscillating water column type wave energy devices is
wherein ,a0 For the distance between the first and the second oscillating water column type wave energy devices, alpha is an exponential gradient parameter, and x n+1 Represents the abscissa of the (n+1) th oscillating water column type wave energy device, and the abscissa x of the first oscillating water column type wave energy device 1 ＝0。
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. due to the continuous wave trapping function, incident waves with different frequencies can be trapped at different positions when passing through the gradient array of the oscillating water column type wave energy device, wave energy is limited near the position and is obviously amplified, and the oscillating water column type wave energy device is placed at a wave energy concentration position, so that the power generation efficiency of the device is improved.
2. Because the incident waves with different frequencies are trapped at different positions, the exponentially arranged oscillating water column type wave energy device can expand the effective wave energy capturing frequency bandwidth to the whole incident wave period range.
3. By keeping the size parameters of a plurality of oscillating water column type wave energy devices consistent, large-scale production and installation can be realized.
Drawings
FIG. 1 is a schematic diagram of an oscillating water column wave energy device in an exponential arrangement in an embodiment of the invention;
FIG. 2 is a left side view of an oscillating water column wave energy device in an embodiment of the invention;
fig. 3 is a top view of an oscillating water column wave energy device in an embodiment of the invention.
Fig. 4 is a front view of an oscillating water column wave energy device in an embodiment of the invention.
Wherein, 1: a water inlet; 2: a gas cell structure; 3: a turbine; 4: and an electricity storage device.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but embodiments of the present invention are not limited thereto.
An exponentially arranged oscillating water column type wave energy device comprises a plurality of oscillating water column type wave energy devices fixed at the bottom of water. The oscillating water column type wave energy device comprises an air chamber structure 2, a turbine 3 and an electricity storage device 4, wherein a water inlet 1 is arranged at the bottom of the air chamber structure, the turbine is arranged in the air chamber structure, and the electricity storage device is connected with the turbine. Seawater enters the air chamber structure from the water inlet, water columns in the air chamber structure perform up-down periodical motion, the air volume in the air chamber structure changes, and therefore the turbine is driven to generate electricity, and electric energy is stored by the electricity storage device.
The distance between the first oscillating water column type wave energy device and the second oscillating water column type wave energy device is a 0 Along the wave incidence direction, the distance between the other two adjacent oscillating water column type wave energy devices is equal to a 0 Is in an exponential relationship. In this embodiment, there are 16 oscillating water column type wave energy devices, the radius of the oscillating water column type wave energy device is 2m, and all the oscillating water column type wave energy devices are fixed on the water bottom. 16 identical oscillating water column type wave energy devices are arranged in an exponential relationship along the wave incidence direction, and the distance between two adjacent oscillating water column type wave energy devices is
wherein ,a0 For the distance between the first and the second oscillating water column type wave energy devices, alpha is an exponential gradient parameter, and x n+1 Represents the abscissa of the (n+1) th oscillating water column type wave energy device, and the abscissa x of the first oscillating water column type wave energy device 1 =0. Alpha is 0.002, a 0 At a distance a of 25m, the two oscillation water column type wave energy devices are counted down 14 76.42m。
When an incident wave passes through an exponentially arranged oscillating water column wave energy device, due to the continuous trapping, the incident waves of different frequencies will be trapped at different locations, the wave energy being confined near that location and amplified significantly. According to the relation, the oscillating water column type wave energy device is placed at the wave energy concentration position, the periodical motion of the water column in the air chamber structure up and down is enhanced, the volume change amplitude of air in the air chamber structure is improved, further the driving turbine is promoted to generate electricity, and finally the energy is stored by the electricity storage device. The oscillating water column type wave energy devices which are arranged in an index manner are all arranged at the wave energy concentration position, so that the power generation efficiency of the device can be improved. And because the incident waves with different frequencies are trapped at different positions, the exponentially arranged oscillation water column type wave energy device can expand the wave energy capturing effective frequency bandwidth to the whole incident wave period range.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (6)
1. An exponentially arranged oscillating water column type wave energy device is characterized in that,
comprises a plurality of oscillating water column type wave energy devices fixed at the water bottom, wherein the distance between the first oscillating water column type wave energy device and the second oscillating water column type wave energy device is
Along the wave incidence direction, the distance between the other two adjacent oscillating water column type wave energy devices is equal to +.>
Is in an exponential relationship;
the oscillating water column type wave energy device comprises an air chamber structure, a turbine and an electricity storage device; the bottom of the air chamber structure is provided with a water inlet, the turbine is arranged in the air chamber structure, and the electricity storage device is connected with the turbine;
the distance between two adjacent oscillating water column type wave energy devices is
wherein ,
for the distance between the first and the second oscillating water column type wave energy device, +.>
Is an exponential gradient parameter>
Represents the abscissa of the (n+1) th oscillating water column type wave energy device, the abscissa of the first oscillating water column type wave energy device +.>
。
2. An exponentially arranged oscillating water column wave energy device according to claim 1, characterized in that,
25m.
3. An exponentially arranged oscillating water column wave energy device according to claim 1, characterized in that,
0.002.
4. The exponentially arranged oscillating water column wave energy device of claim 1, wherein the radius of the oscillating water column wave energy device is 2m.
5. The exponentially arranged oscillating water column wave energy device of claim 1, wherein the dimensional parameters of the plurality of oscillating water column wave energy devices are uniform.
6. A method of exponentially arranging an oscillating water column wave energy device according to any one of claims 1 to 5, characterized by the steps of:
fixing a plurality of oscillating water column type wave energy devices at the bottom of water;
the distance between the first oscillating water column type wave energy device and the second oscillating water column type wave energy device is
Along the wave incidence direction, the distance between the other two adjacent oscillating water column type wave energy devices is equal to +.>
Is in an exponential relationship. />
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210743390.6A CN115095470B (en) | 2022-06-28 | 2022-06-28 | Exponentially arranged oscillating water column type wave energy device and arrangement method thereof |
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| CN202210743390.6A CN115095470B (en) | 2022-06-28 | 2022-06-28 | Exponentially arranged oscillating water column type wave energy device and arrangement method thereof |
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| CN115095470B true CN115095470B (en) | 2023-04-21 |
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| CN101639026A (en) * | 2008-07-30 | 2010-02-03 | 蒋明兴 | Underground hydroelectric power generation system for plain regions |
| CN102324092B (en) * | 2011-09-09 | 2013-08-07 | 华南理工大学 | Method for automatically cutting granular object in digital image |
| EP3551875B1 (en) * | 2016-12-09 | 2021-09-22 | Kinetic NRG Technologies Pty Ltd | A hydrokinetic power generator |
| CN110061667A (en) * | 2019-03-18 | 2019-07-26 | 广东工业大学 | Sliding formwork composite chaotic control method based on wave-activated power generation PMLSM |
| CN110565581B (en) * | 2019-09-21 | 2020-12-15 | 浙江大学宁波理工学院 | Floating breakwater with wave power generation function and breakwater system |
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