CN110725275A - Floating breakwater based on moon pool effect power generation - Google Patents
Floating breakwater based on moon pool effect power generation Download PDFInfo
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- CN110725275A CN110725275A CN201911087303.0A CN201911087303A CN110725275A CN 110725275 A CN110725275 A CN 110725275A CN 201911087303 A CN201911087303 A CN 201911087303A CN 110725275 A CN110725275 A CN 110725275A
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- Prior art keywords
- floater
- floating breakwater
- moon pool
- generator
- power generation
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- 238000007667 floating Methods 0.000 title claims abstract description 58
- 230000000694 effects Effects 0.000 title claims abstract description 22
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000010248 power generation Methods 0.000 title claims abstract description 17
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 51
- 239000010959 steel Substances 0.000 claims description 51
- 230000002265 prevention Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910000754 Wrought iron Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/062—Constructions floating in operational condition, e.g. breakwaters or wave dissipating walls
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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 a floating breakwater based on moon pool effect power generation, which comprises a floating breakwater, a floater and a generator, wherein a roller train is arranged on the floater, a track matched with the roller train is arranged in a cavity of the breakwater, the floater is assembled in the track through the roller train and is connected with the generator, the floater captures wave energy and transmits the wave energy to the generator, and the generator converts the wave energy into electric energy. The invention effectively utilizes the moon pool effect in the cavity of the floating breakwater to generate electricity, and avoids unnecessary collision between the floater and the inner wall surface of the cavity of the floating breakwater when the floater absorbs wave energy in the cavity.
Description
Technical Field
The invention relates to a breakwater, in particular to a floating breakwater based on moon pool effect power generation.
Background
The floating breakwater is an important port hydraulic structure and is mainly used for defending waves transmitted from the open sea, maintaining the stability of a water area in a port, providing safe ship entering and exiting a port area, loading and unloading operation and personnel environment, and protecting other engineering structures in the port. In addition, the floating breakwater can also play a role in protecting the shoreline from erosion.
With the progress of ocean engineering technology, the functions and application fields of the floating breakwater are further developed. The floating breakwater expands the application range of the traditional floating breakwater, expands the application range of the floating breakwater from a port to a sea and expands the application range of the floating breakwater from a shallow water area to a deep water area. Compared with the traditional floating breakwater, the floating breakwater has the advantages of low cost, simple construction, convenient maintenance, environmental protection and the like.
In the use and experiments of the floating breakwater, it is found that when waves pass through a certain cavity which is through from top to bottom of the floating breakwater, the wave can suddenly rise at the position, and the phenomenon in the cavity is like the phenomenon of up-down piston oscillation of the liquid level in a moon pool of a drilling platform, so the phenomenon is called the moon-pool effect (moon-pool effect) of the floating breakwater. The 'moon pool effect' in the floating breakwater does not need to reduce the shock of the floating breakwater like liquid in a ship moon pool, and the reasons are that the floating breakwater is used as a wave absorbing tool, and the moon pool effect can consume a part of wave energy, so that the wave absorbing performance of the floating breakwater is facilitated; secondly, the device can collect the part of wave energy and convert the part of wave energy into electric energy.
In the existing power generation device, when wave energy in a cavity is absorbed, a floater unnecessarily collides with the inner wall surface of the cavity of the floating breakwater, so that the original structure is damaged, the service life is influenced, and the power generation efficiency is reduced.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a floating breakwater based on moon pool effect power generation, and solves the problems that when a floater absorbs wave energy in a cavity, the floater and the inner wall surface of the cavity of the floating breakwater are unnecessarily collided, the original structure is easily damaged, the service life is influenced, and the power generation efficiency is reduced in the conventional power generation device.
The technical scheme is as follows: the floating breakwater based on the moon pool effect power generation comprises a floating breakwater, a floater and a power generator, wherein a roller train is arranged on the floater, a track matched with the roller train is arranged in a cavity of the breakwater, the floater is assembled in the track through the roller train and is connected with the power generator, the floater captures wave energy and transmits the wave energy to the power generator, and the power generator converts the wave energy into electric energy.
In order to ensure the structural stability of the breakwater, the floating breakwater comprises two cylindrical bodies which are arranged side by side and connected through a connecting piece.
In order to facilitate the connection of the floater and the inner cavity of the breakwater, the floater moves up and down along the existing track in the cavity so as not to collide structurally, the floater is a hollow cylindrical floater, symmetrical steel plates are arranged on the outer wall of the hollow cylindrical floater along the radial direction, and rollers are arranged on the steel plates.
Strengthen the inside roller train overall stability of track, be provided with the vertically steel sheet on the steel sheet, install the gyro wheel in the steel sheet connecting piece.
And the cylindrical main body and the connecting piece are both provided with tracks matched with the roller groups for convenience in coupling with the roller groups.
The steel plate is provided with a steel plate, the upper surface and the lower surface of the steel plate are respectively provided with an anti-collision pad, the inside of the track corresponds to the steel plate and is provided with an anti-collision device, and the anti-collision device is composed of the anti-collision pads and anti-collision springs.
The generator is a piezoelectric generator.
Do benefit to quick dismantlement installation, the generator is placed in the heavy object piece cavity, the rod iron is connected to the motor, the rod iron stretches out and is connected with the float through the connecting cable behind the heavy object piece, be provided with the shackle between connecting cable and the rod iron.
Has the advantages that: the invention effectively utilizes the moon pool effect in the cavity of the floating breakwater to generate electricity, avoids unnecessary collision between the floater and the inner wall surface of the cavity of the floating breakwater when the floater absorbs wave energy in the cavity, arranges a roller track in the cavity of the floating breakwater, and arranges a roller group on the floater to couple the floater and the floating breakwater together, so that the floater only moves vertically relative to the floating breakwater, thereby limiting other degrees of freedom and greatly improving the generating efficiency of the oscillating floater generating set.
Drawings
FIG. 1 is a schematic longitudinal sectional view of the present invention;
FIG. 2 is a top view of the float;
FIG. 3 is a front view of the float;
FIG. 4 is a side view of the float
FIG. 5 is an external connection diagram of a piezoelectric generator;
FIG. 6 is a schematic view of the interior of a piezoelectric generator;
FIG. 7 is a three-dimensional view of a floating breakwater;
FIG. 8 is a cross-sectional view of a rail;
FIG. 9 is a view A showing the engagement of the roller with the rail;
FIG. 10 is a view B showing the engagement of the rollers with the rails;
FIG. 11 is a front view of the roller;
FIG. 12 is a crash pad illustration;
fig. 13 is a diagram of a bump spring.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1-2, the floating breakwater based on moon pool effect power generation comprises a floating breakwater 2, a floater 1 and a piezoelectric generator 16, wherein the floating breakwater comprises a plurality of cylindrical main bodies arranged side by side, the floating breakwater 2 is fixed through a rope 3, the cylindrical main bodies are connected through a connecting piece 10, the floater is a hollow cylindrical floater, two first steel plates 4 and two second steel plates 5 are arranged on the outer wall surface of the floater in a symmetrical mode, the first steel plates and the second steel plates are welded along the circumferential direction of the outer wall surface of the floater, and the first steel plates and the second steel plates are evenly arranged at intervals of 90 degrees. Two rows of rollers 6 are arranged at the edge of the first steel plate 4. Short plates 8 are additionally arranged on two side wall surfaces of the first steel plate 4 and are perpendicular to the first steel plate, and the overall stability of the roller train in the track is enhanced. A row of rollers are arranged in the cutting space in the middle of the short plate. No. 5 steel sheets is shorter than the first steel sheet in length, and a row of rollers are arranged in the middle cutting space.
As shown in fig. 3-4, the edge of the first steel plate 4 is provided with a hole, a plurality of reinforcing plates are additionally arranged on two sides of the first steel plate to improve the structural strength of the first steel plate, the heights of the first steel plate 4 and the second steel plate 5 are half of the height of the floater, and the center of the steel plate is aligned with the center of the floater. The first steel plate 4 is respectively provided with an anti-collision pad 14 up and down, and the anti-collision pads and the anti-collision springs are matched to act. Holes are formed in the second steel plate 5 and the short plate 8, and the rollers are arranged at the middle opening of the plates.
As shown in figure 5, the piezoelectric motor 16 is arranged in the heavy object block 17, a steel rod 18 extends out of the piezoelectric motor and is connected with the floater 1, the steel rod 18 can freely slide up and down and has water tightness, the steel rod 18 is connected with the floater 1 through a connecting cable 20, the connecting cable is in a tension type and is convenient for transmitting energy at any time, and the end part of the connecting cable is connected with the steel rod through a shackle 19.
As shown in fig. 6, two rows of piezoelectric vibrators 21 are arranged inside the piezoelectric machine, a mass block 22 is arranged at the end part of each vibrator, two support rods 25 penetrate through a middle cylindrical slider 23 to limit the slider to slide on the rods, springs 26 are arranged above and below the support rods 25, and the springs 26 can prevent the slider 23 from impacting and pressing the load-carrying mass 17 and can apply reaction force to push the slider 23 away when the slider reaches the displacement limit. The slide block 23 is provided with a plurality of scribes 24, and the scribes 24 scrape the piezoelectric vibrator 21 along with the up-and-down sliding of the slide block to generate electricity.
As shown in fig. 7, the cylindrical floating breakwater connector 10 is inwardly provided with rails which are fitted with the rollers. A third steel plate is additionally arranged on the surface of a cylinder in the floating breakwater cavity, the height of the third steel plate is the diameter of the cylinder, the shape of a welding part is semicircular along with the curve change of the surface of the cylinder, and a track line is arranged on the edge of the plate and can be matched with a roller on the second steel plate to provide the transverse force of a floater.
As shown in fig. 8-10, the front wall of the track 12 has two tracks for engaging with two rows of rollers on the edge of the first steel plate, and the side walls have one track for engaging with rollers on the short plate attached to the first steel plate. The longitudinal rollers and the transverse rollers are vertically arranged on the rails, so that the stability of the structure is enhanced. An anti-collision pad and an anti-collision spring 15 are respectively arranged on the upper portion and the lower portion of the track and are matched with a steel plate anti-collision pad 14 for use, and a track line is arranged on the wall surface of a third steel plate 11 and is matched with a roller on a second steel plate.
As shown in fig. 11-13, the inner ring of the roller 6 is embedded into a rolling bearing 13, the bearing is a deep groove ball bearing, the crash pad 14 is made of rubber, a track line attached to a track is arranged on the crash pad, and the crash spring 15 is made of steel.
When the floating breakwater coupling device is used, the roller track is arranged in the cavity of the floating breakwater, the roller group is arranged on the floater, and the floater and the floating breakwater are coupled together, so that the floater only moves vertically relative to the floating breakwater, and other degrees of freedom are limited. When incident waves pass through the cavity, the floating breakwater is excited to vibrate in the cavity to cause the up-and-down vibration of the floater, and wave energy is converted into mechanical energy for the movement of the floater. The floater pulls the bottom piezoelectric motor slide block to move through the connecting cable, the scribing piece on the slide block scrapes the piezoelectric vibrator to vibrate, and the piezoelectric vibrator converts mechanical energy into electric energy through the piezoelectric effect principle.
Experiments and calculation show that when the mass of the floater is constant and the floater drafts water for a certain time, the energy absorbed by the floater is in direct proportion to the vertical movement speed of the floater and the square of vertical displacement, namely the better the vertical response of the floater is, the more the energy absorbed by the floater from waves is. The invention ensures that the floater only moves vertically relative to the floating breakwater, so that the floater can more effectively absorb incident wave energy, namely, the efficiency of converting the wave energy into mechanical energy is increased, and the overall generating efficiency of the oscillating floater generating set is greatly increased.
Claims (8)
1. The floating breakwater based on moon pool effect power generation is characterized by comprising a floating breakwater (2), a floater (1) and a generator (16), wherein roller sets are arranged on the floater (1), a track matched with the roller sets is arranged in a cavity of the floating breakwater (2), the floater (1) is assembled in the track through the roller sets, the floater (1) is connected with the generator (16), the floater (1) captures wave energy and transmits the wave energy to the generator (16), and the generator (16) converts the wave energy into electric energy.
2. The floating breakwater based on moon pool effect power generation according to claim 1, wherein the floating breakwater comprises cylindrical bodies arranged side by side, and the cylindrical bodies are connected to each other by a connecting member (10).
3. The floating breakwater based on moon pool effect power generation according to claim 1, wherein the floater (1) is a hollow cylindrical floater, the outer wall of which is provided with symmetrical steel plates in the radial direction, and the steel plates are provided with rollers (6).
4. The floating breakwater based on moon pool effect power generation of claim 3, wherein the steel plate is provided with vertical steel plate connectors, and the steel plate connectors are internally provided with rollers.
5. The floating breakwater generating electricity based on the moon pool effect as claimed in claim 2, wherein the cylindrical body and the connector (10) are each provided with a rail (12) adapted to the roller train.
6. The floating breakwater generating electricity based on the moon pool effect as claimed in claim 3, wherein crash pads (14) are provided on the upper and lower surfaces of the steel plate, and crash prevention means consisting of the crash pads (14) and the crash springs (15) are provided in the track (12) corresponding to the steel plate.
7. The floating breakwater based on moon pool effect power generation according to claim 1, wherein the generator (16) is a piezoelectric generator.
8. The floating breakwater based on moon pool effect power generation according to claim 1, wherein the generator (16) is placed in a cavity of the weight block (17), the motor (16) is connected with a steel rod (18), the steel rod (18) is connected with the floater through a connecting cable (20) after extending out of the weight block (17), and a shackle (19) is arranged between the connecting cable (20) and the steel rod (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911087303.0A CN110725275A (en) | 2019-11-08 | 2019-11-08 | Floating breakwater based on moon pool effect power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911087303.0A CN110725275A (en) | 2019-11-08 | 2019-11-08 | Floating breakwater based on moon pool effect power generation |
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| Publication Number | Publication Date |
|---|---|
| CN110725275A true CN110725275A (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911087303.0A Pending CN110725275A (en) | 2019-11-08 | 2019-11-08 | Floating breakwater based on moon pool effect power generation |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411622A (en) * | 2022-02-16 | 2022-04-29 | 嵊州市浙江工业大学创新研究院 | Floating wave bank based on piezoelectric effect |
| CN115369812A (en) * | 2022-08-22 | 2022-11-22 | 交通运输部天津水运工程科学研究所 | Floating breakwater capable of improving stability and method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564604A (en) * | 2016-01-07 | 2016-05-11 | 江苏科技大学 | Openable-closable folding type moon pool baffle device |
| US20180258904A1 (en) * | 2015-03-09 | 2018-09-13 | Thomas Gregory Gorman | Floating moon pool hydraulic pump |
| CN109185023A (en) * | 2018-10-10 | 2019-01-11 | 大连理工大学 | It is integrated in the liquid tank float-type Wave energy electric generator of floating breakwater |
| CN109882343A (en) * | 2019-04-23 | 2019-06-14 | 哈尔滨工程大学 | A kind of moon pool oscillating water column Wave energy electric generator based on floating breakwater |
| CN211340646U (en) * | 2019-11-08 | 2020-08-25 | 江苏科技大学 | Floating breakwater based on moon pool effect power generation |
-
2019
- 2019-11-08 CN CN201911087303.0A patent/CN110725275A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180258904A1 (en) * | 2015-03-09 | 2018-09-13 | Thomas Gregory Gorman | Floating moon pool hydraulic pump |
| CN105564604A (en) * | 2016-01-07 | 2016-05-11 | 江苏科技大学 | Openable-closable folding type moon pool baffle device |
| CN109185023A (en) * | 2018-10-10 | 2019-01-11 | 大连理工大学 | It is integrated in the liquid tank float-type Wave energy electric generator of floating breakwater |
| CN109882343A (en) * | 2019-04-23 | 2019-06-14 | 哈尔滨工程大学 | A kind of moon pool oscillating water column Wave energy electric generator based on floating breakwater |
| CN211340646U (en) * | 2019-11-08 | 2020-08-25 | 江苏科技大学 | Floating breakwater based on moon pool effect power generation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411622A (en) * | 2022-02-16 | 2022-04-29 | 嵊州市浙江工业大学创新研究院 | Floating wave bank based on piezoelectric effect |
| CN115369812A (en) * | 2022-08-22 | 2022-11-22 | 交通运输部天津水运工程科学研究所 | Floating breakwater capable of improving stability and method thereof |
| CN115369812B (en) * | 2022-08-22 | 2023-12-15 | 交通运输部天津水运工程科学研究所 | Floating breakwater capable of improving stability and method thereof |
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