CN114438957A

CN114438957A - Comprehensive floating breakwater

Info

Publication number: CN114438957A
Application number: CN202210140164.9A
Authority: CN
Inventors: 王佳锋; 徐英杰; 周水清; 徐滌平; 金伟娅; 高增梁
Original assignee: Shengzhou Zhejiang University of Technology Innovation Research Institute
Current assignee: Shengzhou Zhejiang University of Technology Innovation Research Institute
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-05-06
Anticipated expiration: 2042-02-16
Also published as: CN114438957B

Abstract

The invention provides a comprehensive floating breakwater. In particular to a floating breakwater combining wave dissipation and comprehensive power generation. The invention relates to a comprehensive floating breakwater which comprises a floating platform, cylindrical buoys and a wind generating set, wherein through holes penetrating through the through holes are arrayed on the floating platform, the cylindrical buoys are correspondingly arranged in the through holes arrayed on the floating platform and are tightly connected with the floating platform through an annular piezoelectric outer frame, the wind generating set is fixedly arranged on the floating platform, a wind power storage battery and a wind power controller are further arranged on the floating platform, and anchor ropes are arranged below the floating platform and used for fixing the floating breakwater with the seabed. The comprehensive floating breakwater is arranged on the offshore shore, so that the abrasion of sea waves to the offshore shore can be reduced to a certain extent; the power generation mode based on the piezoelectric effect is adopted to convert the kinetic energy and the potential energy of sea waves into electric energy, a simpler structure is utilized to generate power, and the power generation mode is combined with offshore wind power, so that the energy is saved, and the environment is protected.

Description

Comprehensive floating breakwater

Technical Field

The invention belongs to the technical field of ocean breakwaters, and relates to a comprehensive floating breakwater, in particular to a floating breakwater combining wave dissipation and comprehensive power generation.

Background

Offshore wind energy resources in China are rich, the development potential of offshore wind power with the water depth of 5-25 m and the height of 50m is 2 hundred million kW, and the development potential of 5 hundred million kW is 5 hundred million kW when the water depth of 5-50 m and the height of 70m are high. In order to realize the carbon neutralization target, renewable energy sources with mature technologies such as wind power and photovoltaic and with commercial development value must be vigorously developed, so that the method has a remarkable effect on reducing carbon emission and is an effective means for realizing the carbon neutralization target in China. In addition, compared with the traditional solar energy, the solar energy depends on weather conditions, the capacity is very insufficient in continuous rainy days and severe weather at sea, and in contrast, the piezoelectricity is generated in a wave energy mode, and the capacity is stable; compared with the wave power generation of the traditional mechanical structure, the piezoelectric power generation mode is simpler, and the construction condition of the offshore construction breakwater is met, so that the piezoelectric power generation mode is adopted, and the mechanical energy of sea waves is effectively utilized. And the energy density of the piezoelectric conversion energy is high, the structure is simple, the miniaturization is easy, the compatibility is good, and the utilization of the sea wave energy is more efficient. Therefore, the development of the breakwater based on the piezoelectric power generation mode has important practical significance.

Disclosure of Invention

Aiming at the problem, the invention provides a comprehensive floating breakwater, which realizes the combination of wave dissipation and comprehensive power generation, and adopts the following technical scheme:

the utility model provides a comprehensive formula floating breakwater, includes floating platform, cylindrical flotation pontoon and wind generating set, and the through-hole that runs through is arranged in the array to the floating platform, cylindrical flotation pontoon corresponds to set up array arrangement on the floating platform in the through-hole, wind generating set is fixed to be set up on the floating platform, still is equipped with wind-force battery and wind-powered controller on the floating platform, and the anchor rope is equipped with to the floating platform below for with the fixed floating breakwater in seabed.

As a further technical scheme, the outside of the cylindrical buoy is provided with an annular piezoelectric outer frame, the annular piezoelectric outer frame comprises a ring body and connecting ends which are arranged on the ring body in an outwards protruding mode, the connecting ends are evenly distributed around the ring body and are connected with the floating platform through the connecting ends.

As a further technical scheme, the connecting end comprises an external straight plate shell and internal long-strip-shaped built-in piezoelectric patches distributed in an array mode, the horizontal built-in piezoelectric patches are connected through clamping plates, and the built-in piezoelectric patches are stressed to generate power in a cantilever beam type structure along with fluctuation of the up-down frequency of sea waves.

As a further technical scheme, the cylindrical buoy comprises a buoy shell, a central rod, a fan-shaped piezoelectric sheet and a buoy, wherein the central rod is arranged inside the buoy shell, the built-in fan-shaped piezoelectric sheet is respectively and tightly connected with the buoy shell and the central rod, the buoy is arranged at the bottom of the central rod, and the buoy contains an electric wire made of a waterproof material.

As a further technical scheme, the upper end part of the buoy shell is further provided with an annular filter rectifier and first LED lamps, and the first LED lamps are distributed on the annular filter rectifier in an array mode.

As a further technical scheme, a plurality of strip-shaped piezoelectric patches distributed in an array mode are arranged inside the connecting end of the fan-shaped piezoelectric patch, the buoy shell and the central rod, and the strip-shaped piezoelectric patches are stressed to generate power in a cantilever beam type structure along with fluctuation of the up-down frequency of sea waves.

As a further technical scheme, the strip-shaped piezoelectric patch and the fan-shaped piezoelectric patch are connected in parallel.

As a further technical scheme, the wind generating set comprises a wind turbine support, a blade rotating shaft and blades, the blade rotating shaft is arranged on the upper portion of the wind turbine support, the blades are connected with the blade rotating shaft through a blade fixing support, and second LED lamps are further arranged on the blade fixing support and used for lighting.

As a further technical scheme, the floating platform is a triangular floating platform, and the cylindrical buoys are arrayed on the triangular floating platform in a triangular mode.

Compared with the prior art, the invention has the following beneficial effects:

1. the cylindrical floating breakwater is arranged in a triangular array and fixed by a triangular floating platform, so that the stability of the floating breakwater is improved, the normal work in sea waves is ensured, a buffering effect on the impact of the sea waves can be realized, the wave clipping capability of the sea waves is better, the abrasion of the shore breakwater of the offshore bank is prevented, and the life safety of people of the offshore bank is protected;

2. the power generation mode based on the piezoelectric effect converts the kinetic energy and potential energy of sea waves rushing into the near-shore embankment into electric energy, and plays a role in protecting the near-shore embankment to a certain degree. Moreover, a simpler structure of the piezoelectric effect is utilized to generate electricity, so that energy is saved and the environment is protected;

3. the advantage of abundant offshore wind power resources is utilized, and the wind driven generator is arranged on the floating platform, so that the ocean energy is effectively utilized, and the double-carbon development strategy is met;

4. the advantage that the floating platform area is large is utilized, the floating platform can be used for building a platform in the offshore construction, the manufactured electric quantity and the light are used for marine illumination, and the lighting direction of the fishing boat running on the sea is realized.

Drawings

Fig. 1 is a schematic structural view of an integrated floating breakwater according to embodiment 1 of the present invention;

FIG. 2 is a schematic structural view of a wind turbine generator system according to embodiment 1 of the present invention;

FIG. 3 is a schematic structural view of a cylindrical pontoon casing according to embodiment 1 of the invention;

FIG. 4 is a schematic structural view of an annular piezoelectric outer frame according to embodiment 1 of the present invention;

fig. 5 is a schematic view of a connecting end structure of an annular piezoelectric outer frame according to embodiment 1 of the present invention;

FIG. 6 is a schematic view of the internal structure of the cylindrical buoy in embodiment 1 of the invention;

FIG. 7 is a schematic view of the up and down movement of the cylindrical buoy;

FIG. 8 is a wind power generation flow chart;

FIG. 9 is a flow chart of piezoelectric power generation;

in the figure: 1. a floating platform; 2. a cylindrical buoy; 21. a pontoon casing; 22. a center pole; 23. a sector piezoelectric sheet; 24. a float; 3. a wind generating set; 31. a wind turbine support; 32. a blade rotating shaft; 33. a blade; 34. a blade fixing bracket; 35. a second LED lamp; 4. a wind power storage battery; 5. a wind power controller; 6. an anchor line; 7. an annular piezoelectric outer frame; 71. a ring body; 72. a connecting end; 721. a straight housing; 722. a built-in piezoelectric sheet; 723. a splint; 8. an annular filter rectifier; 9. a first LED lamp.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-6, a comprehensive floating breakwater comprises a triangular floating platform 1, cylindrical buoys 2 and wind generating sets 3, wherein the triangular floating platform 1 is provided with through holes arranged in an array, the cylindrical buoys 2 are correspondingly arranged in the through holes arranged in an array on the floating platform 1, in this embodiment, the number of the cylindrical buoys 2 is 4, the cylindrical buoys are arranged at three top corners and a central position of the triangular floating platform 1, the wind generating sets 3 are fixedly arranged on the floating platform 1, the floating platform 1 is further provided with wind power storage batteries 4 and a wind power controller 5, and anchor ropes 6 are arranged below the floating platform 1 and used for fixing the floating breakwater with the seabed near the bank.

The cylindrical buoy 2 is externally provided with an annular piezoelectric outer frame 7, the annular piezoelectric outer frame 7 comprises an annular body 71 and connecting ends 72 which are arranged on the annular body 71 in an outward protruding mode, the connecting ends 72 are evenly distributed around the annular body 71, and the cylindrical buoy 2 is fixedly connected with the floating platform 1 through the connecting ends 72. The connecting end 72 includes an outer straight-plate housing 721 and internal long-strip-shaped built-in piezoelectric patches 722 distributed in an array, the horizontal built-in piezoelectric patches 722 are connected by a clamp 723, and the built-in piezoelectric patches 722 generate power by bearing a cantilever beam structure along with fluctuation of up-and-down frequency of sea waves.

The cylindrical buoy 2 comprises a buoy shell 21, a central rod 22, a sector piezoelectric plate 23 and a buoy 24, wherein the central rod 22 is arranged inside the buoy shell 21, the built-in sector piezoelectric plate 23 is tightly connected with the buoy shell 21 and the central rod 22 respectively, the buoy 24 is arranged at the bottom of the central rod 22, and the buoy 24 contains electric wires made of waterproof materials. The upper end of the buoy shell 21 is further provided with an annular filter rectifier 8 and first LED lamps 9, and the first LED lamps 9 are distributed on the annular filter rectifier 8 in an array mode. A plurality of strip-shaped piezoelectric patches distributed in an array are arranged in the connecting end of the fan-shaped piezoelectric patch 23, the buoy shell 21 and the central rod 22, and the strip-shaped piezoelectric patches are stressed to generate power in a cantilever beam type structure along with fluctuation of the up-down frequency of sea waves. Wherein, the strip-shaped piezoelectric sheet and the fan-shaped piezoelectric sheet 23 are connected in parallel. The strip-shaped piezoelectric pieces can be regarded as power supplies, and the strip-shaped piezoelectric pieces are extruded to deform to generate voltage, which is equivalent to the fact that the power supplies are connected in parallel.

The wind generating set 3 comprises a wind turbine support 31, a blade rotating shaft 32 and a blade 33, wherein the blade rotating shaft 32 is arranged at the upper part of the wind turbine support 31, the blade 33 is connected with the blade rotating shaft 32 through a blade fixing support 34, and a second LED lamp 35 for illumination is further arranged on the blade fixing support 34.

The invention relates to a comprehensive floating breakwater, which particularly comprises the following components in part by weight:

the buoy 24 is driven to reciprocate up and down along with the fluctuation of the waves of the sea water, and the buoy 24 obtains the energy of the sea waves.

Because the four arrays of cylindrical buoys 2 are connected with the floating platform 1 through the annular piezoelectric outer frame 7, and the mass of the floating platform 1 is larger than that of the cylindrical buoys 2, the joints (i.e. the connecting ends 72) of the annular piezoelectric outer frame 7 embedded in the cylindrical buoys 2 and the floating platform 1 and the cylindrical buoys 2 generate relative motion under the action of sea waves (as shown in fig. 7), so that the multilayer piezoelectric sheets at the joints generate relative displacement under stress, form free moving charges, form currents, and finally store the currents in the storage battery through the annular filter rectifier 8.

In the cylindrical buoy 2, in principle, a sector piezoelectric plate 23 is distributed on a buoy central rod 22, a plurality of strip piezoelectric plates distributed in an array are arranged in the sector piezoelectric plate 23, and under the action of the up-and-down motion of the buoy 24 under the pushing of sea waves, the joint of the sector piezoelectric plate 23, the central rod 22 and the buoy shell 21 is subjected to up-and-down reciprocating extrusion force, so that the built-in multilayer strip piezoelectric plates are deformed, generate a piezoelectric effect, generate current, and finally are stored in another storage battery through a rectifier and a filter for supplying power to miniature electric appliances such as a lighting system, a radio node and the like (the piezoelectric power generation process is shown in fig. 8).

For an offshore wind power generation unit, sea wind on the sea surface blows through blades of the wind power generation unit, so that the blades rotate to generate electric quantity, and the generated electric quantity is stored in a wind power storage battery through a wind power controller or is merged into a national power grid (a wind power generation flow is shown in fig. 9).

The integrated floating breakwater piezoelectric power generation system of the embodiment can be used in various situations, for example, a lighthouse can be arranged on the offshore platform by taking advantage of the large height of the floating platform to warn a ship to guide the ship. The advantage of large floating platform area is utilized, the floating platform can be used for building a platform in the ocean, and the manufactured electric quantity is used for construction, or daily needs are given to workers, or redundant electric quantity is merged into a national power grid.

Example 2

The difference between this embodiment and embodiment 1 is that the floating platform is a square floating platform, the cylindrical buoys are arrayed on the floating platform in a square manner, the number of the cylindrical buoys is 5, and the cylindrical buoys are respectively located at the square vertex angle and the center position of the square floating platform, and the others are the same as embodiment 1.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a comprehensive formula floating breakwater, its characterized in that, includes floating platform (1), cylindrical flotation pontoon (2) and wind generating set (3), the through-hole that runs through of having arranged in an array on floating platform (1), cylindrical flotation pontoon (2) correspond to set up array on floating platform (1) arrange in the through-hole, through annular piezoelectricity outer frame (7) and floating platform (1) zonulae occludens, wind generating set (3) are fixed to be set up on floating platform (1), still are equipped with wind-force battery (4) and wind-powered controller (5) on floating platform (1), and anchor rope (6) are equipped with to floating platform (1) below for with the fixed floating breakwater of nearly bank seabed.

2. A comprehensive floating breakwater according to claim 1, wherein an annular piezoelectric outer frame (7) is arranged outside the cylindrical buoy (2), the annular piezoelectric outer frame (7) comprises a ring body (71) and connecting ends (72) protruding outwards from the ring body (71), and the connecting ends (72) are uniformly distributed around the ring body (71) and connected with the floating platform (1) through the connecting ends (72).

3. A comprehensive floating breakwater according to claim 2, wherein the connecting end (72) comprises an outer straight-plate housing (721) and an inner elongated built-in piezoelectric sheet (722) distributed in an array, the horizontal built-in piezoelectric sheets (722) are connected with each other through a clamping plate (723), and the built-in piezoelectric sheets (722) generate power in a cantilever beam type structure along with the fluctuation of the up-down frequency of sea waves.

4. A comprehensive floating breakwater according to claim 1, wherein said cylindrical buoy (2) comprises a buoy shell (21), a center pole (22), a sector piezoelectric plate (23) and a buoy (24), the center pole (22) is disposed inside the buoy shell (21), the built-in sector piezoelectric plate (23) is closely connected to the buoy shell (21) and the center pole (22), the buoy (24) is disposed at the bottom of the center pole (22), and the buoy (24) contains electric wires made of waterproof material.

5. A comprehensive floating breakwater according to claim 4, characterized in that the upper end of the pontoon casing (21) is further provided with an annular filter rectifier (8) and first LED lamps (9), the first LED lamps (9) being arranged in an array on the annular filter rectifier (8).

6. A comprehensive floating breakwater according to claim 4, wherein a plurality of strip-shaped piezoelectric patches distributed in an array are arranged in the interior of the connecting end of the fan-shaped piezoelectric patch (23) with the buoy shell (21) and the central rod (22), and the strip-shaped piezoelectric patches are stressed to generate power in a cantilever beam type structure along with the fluctuation of the up-and-down frequency of sea waves.

7. A comprehensive floating breakwater according to claim 6, characterized in that said strip-shaped piezoelectric patches and fan-shaped piezoelectric patches (23) are connected in parallel.

8. The comprehensive floating breakwater of claim 1, wherein the wind generating set (3) comprises a wind turbine bracket (31), a blade rotating shaft (32) and a blade (33), the blade rotating shaft (32) is arranged at the upper part of the wind turbine bracket (31), the blade (33) is connected with the blade rotating shaft (32) through a blade fixing bracket (34), and a second LED lamp (35) is arranged on the blade fixing bracket (34) and used for illumination.

9. A comprehensive floating breakwater according to claim 1, characterized in that said pontoons (1) are triangular pontoons on which cylindrical pontoons (2) are triangularly arrayed.