Multifunctional floating breakwater

Abstract

The utility model discloses a multifunctional floating breakwater which comprises a breakwater body, the wave facing side and the wave back side of the breakwater body are both provided with through holes for water to flow in and out, and a piezoelectric wave energy power generation device is installed in the breakwater body. According to the breakwater, the wave prevention effect of the breakwater is enhanced through a permeable structure, meanwhile, the piezoelectric wave energy power generation device is arranged in the multifunctional floating breakwater, autonomous power generation is achieved under movement of water, the breakwater not only achieves the wave prevention effect, but also can achieve the autonomous power generation function, and the breakwater is economical, environmentally friendly, low-carbon and sustainable.

Description

Technical Field

[0001] The utility model relates to the field of ocean energy utilization, in particular to a multifunctional floating breakwater. Background Art

[0002] With the rapid development of modern civilization, people's demand for natural resources and living space is increasing day by day. 70% of the ocean area on the earth's surface is rich in natural resources. Since the 21st century, the pace of human development of the ocean has been accelerating. The rapid development of the coastal economy has also brought about the needs of coastal environmental protection and ecological aquaculture. Marine engineering has begun to explore the deep sea from near-coastal ports. Traditional deep-sea aquaculture equipment still has defects such as poor resistance to wind and wave impact. The existing improvement directions are to change the structural size and shape of the aquaculture equipment itself or add auxiliary structures, which increases the design difficulty and requires higher technological content! Floating breakwaters play an important role in the development and utilization of marine aquaculture. They can effectively protect aquaculture equipment and resist the damage of large waves to the equipment.

[0003] However, since offshore aquaculture platforms are far from land, power transmission is difficult, and the electricity cost of diesel engines and other devices is high, and the environment is polluted. The ocean contains huge energy, which is widely distributed and has a huge capacity. It also conforms to the current development concept of green and clean energy. Compared with traditional solar energy and wind energy, ocean energy lasts longer. While using floating breakwaters to resist the impact and damage of wind and waves on offshore platforms, capturing and utilizing ocean energy can not only ensure the safety of offshore platforms, but also achieve self-sufficiency in the energy required for the operation of offshore platforms, achieving the effect of "killing two birds with one stone".

[0004] Although floating breakwaters and wave energy power generation technologies have different development directions, their development trend is to continuously develop towards high efficiency, high reliability and low cost to form low-cost mature technology. Finally, through large-scale production and application, the cost of power generation can be greatly reduced. Therefore, how to realize the combination of deep-sea wave energy power generation and breakwaters has become a new hot spot and economic concern. Utility Model Content

[0005] In view of the shortcomings of the background technology, the technical problem to be solved by the utility model is to provide a multifunctional floating breakwater. The breakwater not only achieves the function of wave protection, but also achieves the function of self-generating electricity, which is economical, environmentally friendly, low-carbon and sustainable.

[0006] The utility model is completed by adopting the following technical scheme: a multifunctional floating breakwater, comprising a breakwater body, wherein both the wave-facing side and the wave-repelling side of the breakwater body have hollow holes for water to flow in and out, and a piezoelectric wave energy power generation device is installed inside the breakwater body.

[0007] Furthermore, the piezoelectric wave energy power generation device includes a support rod, a fixed ball, a vibration ring and a battery box. One end of the support rod is fixed on the box, and the fixed ball is fixed on the other end of the support rod. A plurality of piezoelectric components are arranged between the fixed ball and the vibration ring. The battery box is fixed on the top of the inner cavity of the breakwater body. The piezoelectric components are deformed by the wave energy and then converted into electrical energy which is stored in the battery box.

[0008] Furthermore, compression springs are provided on both sides of the vibration ring.

[0009] Furthermore, the breakwater body is composed of a front wave breakwater, a rear wave breakwater, a left plate, a right plate and a bottom plate, the left plate and the right plate are respectively fixed on the left and right sides of the bottom plate, the front wave breakwater is arranged on the wave-facing side of the floating breakwater, and a front hollow hole is arranged between the bottom of the front wave breakwater and the bottom plate, the rear wave breakwater is arranged on the wave-receiving side of the floating breakwater, and a rear hollow hole is arranged between the bottom of the rear wave breakwater and the bottom plate.

[0010] Furthermore, the bottom plate is provided with a guide plate, and the guide plate is located at the front side of the front wave-breaking plate.

[0011] Furthermore, iron meshes are provided at the front hollow holes and the rear hollow holes.

[0012] Furthermore, the piezoelectric component is a bimorph rectangular piezoelectric ceramic piece, the front end of the bimorph rectangular piezoelectric ceramic piece is connected to the fixed ball, and the rear end of the bimorph rectangular piezoelectric ceramic piece is connected to the vibration ring.

[0013] Furthermore, adjacent piezoelectric components are connected in parallel.

[0014] Beneficial effects of this application:

[0015] 1. The multifunctional floating breakwater that takes piezoelectric wave energy power generation into consideration provided by the utility model has a reasonable structure, good integrity, simple constituent materials, low engineering cost, realizes autonomous power supply, has good mechanical properties of each component, and is easy to install, which is beneficial to actual engineering benefits.

[0016] 2. The utility model extends the bottom platform plate toward the wave-facing side to form a drainage plate, which disrupts the movement trajectory of water particles, expands the blocking area for water particles, and concentrates part of the eddy current on the wave-facing side of the bottom platform plate. The front side wave-breaking plate reflects most of the wave energy, and the waves can pass through the bottom of the front side wave-breaking plate, which increases energy dissipation while reducing wave reflection, thereby reducing the impact of wave loads on the floating breakwater. The rear side wave-breaking plate further reduces the energy of the waves, so that it has a better wave-breaking and wave-dissipating effect in both long-wave and short-wave environments.

[0017] 3. The efficient piezoelectric wave energy power generation device is combined with the floating breakwater to achieve functional integration, so that the device has both good wave-breaking performance and power generation performance, and can effectively reduce the construction cost and play a certain protective role on the breakwater. At the same time, the reflection effect of the floating breakwater on waves can further improve the conversion efficiency and effective frequency range of the wave energy conversion device, thereby improving the adaptability of the wave energy conversion device, increasing the practicability and economy of the wave energy conversion device, and is conducive to the further promotion of the wave energy conversion device.

[0018] 4. The main power generation structure of the piezoelectric wave energy power generation device adopts a circular ring shape, which can not only reduce the scouring effect of waves, but also increase the internal space. It has a simple structure and can be set in size and height according to specific sea conditions. When more electricity is needed, more piezoelectric ceramics can be installed on the vibration ring. On the contrary, the number of piezoelectric ceramic connections can be reduced, and its setting is flexible.

[0019] 5. The main body of the floating breakwater of the utility model is a hollow box, and the front and rear sides of the box allow free exchange of water, which satisfies the function of marine aquaculture while meeting the wave-breaking and wave-dissipating effects and autonomous power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model has the following drawings:

[0021] Figure 1 It is a structural schematic diagram of a multifunctional floating breakwater;

[0022] Figure 2 It is a structural schematic diagram of another view of a multifunctional floating breakwater;

[0023] Figure 3 It is a structural schematic diagram of the front side of a multifunctional floating breakwater.

[0024] Figure numerals: 1. guide plate; 2. front wave-breaking plate; 3. rear wave-breaking plate; 4. right side plate; 5. left side plate; 6. bottom plate; 7. piezoelectric ceramic plate; 8. vibration ring; 9. fixed ball; 10. support rod; 11. iron net; 12. battery box; 13. spring; 14. front hollow hole; 15 rear hollow hole. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model patent to clearly and completely describe the technical solutions in the embodiments of the utility model patent. Obviously, the described embodiments are only part of the embodiments of the utility model patent, not all of them. Based on the embodiments in the utility model patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model patent.

[0026] Reference Figure 1-3 The utility model discloses a multifunctional floating breakwater, including a breakwater body, wherein the wave-facing side and the wave-receiving side of the breakwater body both have hollow holes for water to flow in and out, and a piezoelectric wave energy power generation device is installed inside the breakwater body, and the piezoelectric wave energy power generation device can power the sensors arranged around. The piezoelectric wave energy power generation device is arranged inside the multifunctional floating breakwater, reducing the erosion effect of the waves and improving the stability and reliability of the system. The hollow holes include a front hollow hole 14 and a rear hollow hole 15, and iron meshes 11 are arranged at the front hollow holes 14 and the rear hollow holes 15. The hollow design is adopted, and the front and rear sides of the breakwater body allow free exchange of water, which can effectively enhance the wave-breaking and wave-reducing performance of the breakwater. At the same time, the waves enter the inner cavity of the breakwater body from the front hollow hole, and form vortices near the front side wave-breaking plate. The movement of the waves and the vortices will drive the vibration ring to vibrate, thereby causing the piezoelectric ceramic sheet to vibrate and deform, thereby achieving the purpose of power generation. While meeting the wave-breaking and wave-dissipating effects and autonomous power supply, the iron net can prevent farmed fish from escaping and facilitate the free exchange of water, meeting the function of marine aquaculture. Combining the functions of the floating breakwater and the wave power generation device not only saves space, but also saves the cost of fixing the wave power generation device at sea, and can also improve the wave energy conversion efficiency and wave-breaking performance of the device, saving the cost of production and construction. The integrated structure is convenient for installation at sea and on land. As a piezoelectric wave power generation device that can adapt to the requirements of different sea areas, the power generation system has broad application prospects.

[0027] The breakwater body is composed of a front wave-breaking plate 2, a rear wave-breaking plate 3, a right side plate 4, a left side plate 5 and a bottom plate 6. The left side plate 5 and the right side plate 4 are fixed to the left and right sides of the bottom plate respectively (i.e., the left side plate is vertically fixed to the leftmost side of the bottom platform plate, and the right side plate is vertically fixed to the rightmost side of the bottom platform plate). The two sides of the front wave-breaking plate 2 are respectively fixed to one end of the left side plate 5 and the right side plate 4, and are arranged on the wave-facing side of the floating breakwater. The two sides of the rear wave-breaking plate 3 are fixed to the other end of the left side plate 5 and the right side plate 4, and are arranged on the wave-receiving side of the floating breakwater. The bottom plate 6 is provided with a guide plate 1, which is located on the wave-facing side of the breakwater body, and the guide plate 1 is formed by extending outward from the end of the bottom plate close to the wave-facing side. A front hollow hole 14 is provided between the bottom of the front wave-breaking plate and the bottom plate, and an iron mesh 11 is welded between the front baffle and the bottom plate to cover the front hollow hole. A rear hollow hole 15 is provided between the bottom of the rear breakwater and the bottom plate, and an iron mesh 11 is welded between the rear breakwater and the bottom plate to cover the rear hollow hole 15. The hollow hole covered with the iron mesh enhances the water exchange function, meets the requirements of aquaculture, reduces the impact of waves on the front breakwater 2 and enhances the dissipation of wave energy.

[0028] Since the breakwater body adopts a permeable design and according to the wave theory analysis in fluid mechanics, the seawater is introduced and gathered through the guide plate, and the eddy current will be concentrated near the front breakwater, the speed of the wave will increase rapidly, and the flow velocity of the wave will also increase, thereby strengthening the movement of the wave, accelerating the movement frequency and displacement of the piezoelectric wave energy power generation device, accelerating the energy conversion, and improving the power generation efficiency. The guide plate disrupts the movement trajectory of the water particles, expands the blocking area for the water particles, and concentrates part of the eddy current on the wave-facing side of the bottom platform plate. The front breakwater reflects most of the wave energy, and the waves can pass through the front permeable holes under the front breakwater, which increases the energy dissipation and reduces the reflection of the waves, thereby reducing the influence of the wave load on the floating breakwater and the piezoelectric components. The rear breakwater reduces the energy of the waves again, so that the device has a good wave-breaking and wave-dissipating effect in both long-wave and short-wave environments.

[0029] The piezoelectric wave energy power generation device includes a vibration ring 8, a fixed ball 9, a support rod 10 and a battery box 12. The vibration ring 8 is in a circular ring shape. One end of the support rod 10 is fixed to the inner wall of the front side wave plate 2 of the breakwater body, and the fixed ball 9 is rigidly fixed to the other end of the support rod 10. The vibration ring 8 is arranged along the outer periphery of the fixed ball, and a plurality of piezoelectric components 7 are arranged between the fixed ball 9 and the vibration ring 8, and adjacent piezoelectric components 7 are connected in parallel. The battery box 12 is fixed to the top of the inner cavity of the breakwater body, and the battery in the battery box is connected to the piezoelectric component 7 through a wire. The battery box 12 is mainly used for electric energy rectification and storage, converting the approximately sinusoidal AC current generated by the piezoelectric ceramic into DC power, and then increasing the voltage to the working voltage required by the lithium battery charging chip through the boost circuit, thereby collecting electric energy into the lithium battery.

[0030] Among them, the number of the piezoelectric components 7 is preferably four, and the piezoelectric component 7 is preferably a bimorph rectangular piezoelectric ceramic sheet, the head end of the bimorph rectangular piezoelectric ceramic sheet is connected to the fixed ball, and the end of the bimorph rectangular piezoelectric ceramic sheet is connected to the vibration ring. The piezoelectric ceramic sheet meets the conditions of cleanliness, low carbon, long power generation life and simple maintenance, and reduces the shortcomings of wired power supply in terms of cost and maintenance. The vibration ring vibrates under the action of waves and eddies, thereby driving multiple piezoelectric ceramic sheets to vibrate and deform at the same time, which is then converted into electrical energy and stored in the battery box through wires. The circular shape of the vibration ring not only reduces the scouring effect of waves, but also increases the internal space. It has a simple structure and can be set in size and height according to specific sea conditions. When more electricity is needed, more piezoelectric ceramics can be installed on the vibration ring. On the contrary, it reduces the connection of piezoelectric ceramics, and its setting is flexible.

[0031] Compression springs 13 are provided on both sides of the vibration ring. One side of the compression spring 13 is fixed to the vibration ring 8, and the other side of the compression spring 13 is fixed to the inner wall of the front wave plate 2 of the breakwater body. The compression spring is used to provide elastic restoring force for the vibration ring, and at the same time, the wave energy is periodically captured and utilized by the device, and it is avoided that the piezoelectric ceramic sheet 7 and the vibration ring 8 are broken due to excessive deformation caused by excessive wave intensity.

[0032] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A multifunctional floating breakwater, comprising a breakwater body, characterized in that: The wave-facing side and the wave-repelling side of the breakwater body are both provided with hollow holes for water to flow in and out. A piezoelectric wave energy power generation device is installed inside the breakwater body. The piezoelectric wave energy power generation device includes a support rod, a fixed ball, a vibration ring and a battery box. One end of the support rod is fixed to the box, and the fixed ball is fixed to the other end of the support rod. A plurality of piezoelectric components are arranged between the fixed ball and the vibration ring. The battery box is fixed to the top of the inner cavity of the breakwater body. The piezoelectric components are deformed by the wave energy, and then converted into electrical energy, which is stored in the battery box.

2. A multifunctional floating breakwater according to claim 1, characterized in that: Compression springs are arranged on both sides of the vibration ring.

3. A multifunctional floating breakwater according to claim 1 or 2, characterized in that: The breakwater body consists of a front wave breakwater, a rear wave breakwater, a left plate, a right plate and a bottom plate. The left plate and the right plate are respectively fixed on the left and right sides of the bottom plate. The front wave breakwater is arranged on the wave-facing side of the floating breakwater, and a front hollow hole is arranged between the bottom of the front wave breakwater and the bottom plate. The rear wave breakwater is arranged on the wave-receiving side of the floating breakwater, and a rear hollow hole is arranged between the bottom of the rear wave breakwater and the bottom plate.

4. A multifunctional floating breakwater according to claim 3, characterized in that: The bottom plate is provided with a guide plate, and the guide plate is located on the wave-facing side of the breakwater body.

5. A multifunctional floating breakwater according to claim 4, characterized in that: Iron meshes are arranged at the front hollow holes and the rear hollow holes.

6. A multifunctional floating breakwater according to claim 4 or 5, characterized in that: The piezoelectric component is a bimorph rectangular piezoelectric ceramic piece, the front end of the bimorph rectangular piezoelectric ceramic piece is connected to the fixed ball, and the rear end of the bimorph rectangular piezoelectric ceramic piece is connected to the vibration ring.

7. A multifunctional floating breakwater according to claim 6, characterized in that: Adjacent piezoelectric components are connected in parallel.

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