Moon pool internal wave dissipation type floating breakwater based on multi-floater common air pressure cabin

Abstract

The invention relates to a moon pool internal wave dissipation type floating breakwater based on a multi-floater common-air-pressure cabin, which comprises a wave energy power generation device and a moon pool floating breakwater, the wave energy power generation device is arranged in a cavity of the moon pool floating breakwater, and the wave energy power generation device is connected with the moon pool floating breakwater. A plurality of wave absorbing grooves are formed in the inner wall of the moon pool floating breakwater cavity. The moon pool floating breakwater can effectively shield impact of external waves, and the stability of the breakwater is improved; meanwhile, a wave absorbing groove is formed in the inner wall face of the moon pool floating type breakwater, oscillation of fluid in the moon pool of the breakwater is restrained while the overall buoyancy is remarkably improved, and the stability of the moon pool floating type breakwater under the complex sea condition is greatly improved; through cooperative work of the wave energy power generation device, the chain and the moon pool floating breakwater, the functions of wave prevention, vibration reduction and integrated wave energy power generation are achieved. The stability and impact resistance of the equipment in a complex water area environment are enhanced, and the utilization efficiency of wave energy is improved.

Description

Technical Field

[0001] The present invention relates to a floating breakwater, and in particular to a moonpool internal wave dissipating floating breakwater based on multiple floats sharing a pneumatic chamber. Background Art

[0002] Fisheries are a source of high-quality protein. In recent years, with the increasing demand and the rapid development of marine fishery aquaculture in China, nearshore aquaculture has tended to be saturated. Moreover, due to the high density of nearshore aquaculture, it has caused a certain degree of damage to the marine environment. To enhance the empowerment of the fishery industry and achieve safe, green, and efficient aquaculture, deep-sea aquaculture technology has gradually become an important way for the sustainable development of China's marine economy and the future development direction.

[0003] Deep-sea aquaculture, due to advantages such as smooth water flow and open water surface in the water area, has solved problems such as unstable water quality and poor water exchange in nearshore aquaculture. However, it also has certain limitations. Because of the complex deep-sea environment with waves, areas with poor wave conditions are not conducive to the growth of fish in aquaculture cages and will also damage the structure of the cages. Moreover, most areas in the South China Sea have a subtropical and tropical monsoon climate, with high temperatures, heavy rains, and often typhoons in summer, resulting in strong winds and big waves on the sea surface, bringing great inconvenience to deep-sea aquaculture.

[0004] The emergence of floating breakwaters has overcome the great inconvenience brought by wind and waves to deep-sea aquaculture. Compared with traditional fixed breakwaters, they have advantages such as strong mobility, low self-weight, relatively simple structure, reusability, and not being affected by geological conditions, and have good development prospects.

[0005] Based on the urgent need for deep-sea aquaculture, there is an urgent need to provide a floating breakwater with significant wave dissipation and wave protection functions to protect the safety of aquaculture cages while resisting wind and waves, and escort deep-sea green aquaculture. Summary of the Invention

[0006] Object of the Invention: The object of the present invention is to propose a moonpool internal wave dissipating floating breakwater based on multiple floats sharing a pneumatic chamber, which increases the buoyancy of the floating breakwater while resisting the impact of waves outside the moonpool, suppresses the fluid oscillation inside the moonpool, and improves the stability of the floating breakwater.

[0007] Technical Solution: The present invention includes a wave energy power generation device and a moonpool floating breakwater. A wave energy power generation device is arranged in the cavity of the moonpool floating breakwater. The wave energy power generation device is connected to the moonpool floating breakwater. Multiple wave dissipating grooves are arranged on the inner walls of the cavity of the moonpool floating breakwater, which can increase the buoyancy of the floating breakwater while resisting the impact of waves outside the moonpool and suppress the fluid oscillation inside the moonpool.

[0008] The wave-dissipating groove adopts an elliptical wave-dissipating groove, which can effectively resist the impact of external waves on the moon pool, increase the buoyancy of the floating breakwater, suppress the fluid oscillation inside the moon pool, improve the stability of the floating breakwater, and realize the utilization of clean energy.

[0009] The wave energy power generation device adopts a multi-float common air pressure chamber wave energy power generation device, which includes a connecting rod piston, an internal circulation device, floats and a cylinder wall. The floats are assembled on the outer side of the cylinder wall. An internal circulation device is arranged inside the cylinder wall. A column damping plate is arranged at the bottom of the cylinder wall, and the column damping plate is connected to the internal circulation device. One end of the connecting rod piston is fixedly installed on the upper surface of the float, and the other end is assembled inside the internal circulation device.

[0010] The internal circulation device includes a plurality of hydraulic chambers, which are arranged in an array in the hydraulic chamber disk. The bottoms of the plurality of hydraulic chambers are all connected to an S-shaped pressure transmission pipe, and the other end of the S-shaped pressure transmission pipe is installed on a booster chamber disk. The bottom of the booster chamber disk is connected to a booster cylinder pipe, and the booster cylinder pipe is connected to the power generation device.

[0011] The bottom of the booster chamber disk is connected to the booster cylinder pipe through a V-shaped pressure transmission pipe.

[0012] A constant pressure pipe is installed through the hydraulic chamber disk to balance the internal and external air pressures.

[0013] The connecting rod piston is assembled in the hydraulic chamber of the internal circulation device. Through the up and down reciprocating motion of the float in the wave, the connecting rod piston is driven to do up and down reciprocating motion in the hydraulic chamber. Then, the wave energy is converted into mechanical energy and electrical energy through the internal circulation device, so as to realize that the moon pool floating breakwater resists the impact of external waves and absorbs and converts the wave energy inside and outside the moon pool at the same time.

[0014] The column damping plate is connected to the internal circulation device through a support column.

[0015] A chain connection buckle is arranged at the bottom of the column damping plate and is fixed to the seabed through a chain, thereby reducing the wave impact.

[0016] The wave energy power generation device is connected to the moon pool floating breakwater through a plurality of chains to ensure the stability of the system.

[0017] Beneficial effects: The present invention has the following advantages:

[0018] (1) The moon pool floating breakwater can effectively shield the impact of external waves, improve the stability of the breakwater, and create an ideal environment for deep-sea aquaculture; at the same time, wave-dissipating grooves are opened on the inner wall surface of the moon pool floating breakwater, which can not only significantly improve the overall buoyancy, but also effectively suppress the oscillation of the fluid inside the breakwater moon pool, greatly enhancing the stability of the moon pool floating breakwater in complex sea conditions to be applicable to harsh sea conditions;

[0019] (2) The wave energy power generation device adopts a structure with multiple floats sharing a pneumatic chamber. Through the reciprocating up and down movement of the floats in the waves, the connecting rod piston is driven to make a reciprocating up and down movement in the hydraulic chamber. Furthermore, through the internal circulation device, the wave energy is converted into mechanical energy and electrical energy, enabling the moonpool floating breakwater to resist external wave impacts while absorbing and converting the wave energy inside and outside the moonpool.

[0020] (3) Through the coordinated operation of the wave energy power generation device, the chain, and the moonpool floating breakwater, the functions of wave prevention, vibration reduction, and integrated wave energy power generation are achieved; not only enhancing the stability and anti-impact ability of the equipment in complex water environments, but also improving the utilization efficiency of wave energy, providing a more effective technical means for deep-sea aquaculture and offshore energy utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a half-sectional view of the moonpool floating breakwater of the present invention;

[0023] Figure 3 is an exploded view of the wave energy power generation device of the present invention;

[0024] Figure 4 is a half-sectional view of the wave energy power generation device of the present invention;

[0025] Figure 5 is a schematic diagram of the installation of the float and the cylinder wall of the present invention;

[0026] Figure 6 is an exploded view of the internal circulation device of the present invention;

[0027] Figure 7 is a schematic diagram of the power generation device of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] As Figure 1 shown, the moonpool internal wave dissipation type floating breakwater based on multiple floats sharing a pneumatic chamber in this embodiment includes a wave energy power generation device 1, a chain 2, and a moonpool floating breakwater 3; a wave energy power generation device 1 is provided in the cavity of the moonpool floating breakwater 3, and the wave energy power generation device 1 and the moonpool floating breakwater 3 are connected by a plurality of chains 2 to ensure the stability of the system. The inner walls of the cavity of the moonpool floating breakwater 3 are provided with a plurality of wave dissipation grooves, as Figure 2As shown in the figure, the resistance of the water body in the moonpool climbing along the inner wall of the moonpool is increased as much as possible to reduce the wave impact. Through the coordinated work of the wave energy power generation device 1, the chain 2 and the floating breakwater 3 in the moonpool, the functions of wave prevention, vibration reduction and integrated wave energy power generation are realized. It can not only enhance the stability and anti-impact ability of the equipment in the complex water area environment, but also improve the utilization efficiency of wave energy, providing a more effective technical means for deep-sea aquaculture and offshore energy utilization.

[0030] As Figure 3 and Figure 4 shown, the wave energy power generation device 1 adopts a multi-float common air pressure chamber wave energy power generation device, including a connecting rod piston 11, an internal circulation device 12, a float 13, a cylinder wall 14, a support column 15, and a column damping plate 16. Among them, the float 13 is assembled outside the cylinder wall 14. As Figure 5 shown, the float 13 makes a reciprocating motion up and down through the waves on the cylinder wall 14, and a cylindrical hole is opened at its connection, and a round bead is placed in the hole to reduce the friction between the float 13 and the cylinder wall 14; an internal circulation device 12 is provided inside the cylinder wall 14, and a column damping plate 16 is provided at the bottom of the cylinder wall 14. A support column 15 is connected between the column damping plate 16 and the internal circulation device 12; a chain connection buckle is provided at the bottom of the column damping plate 16 and is fixed to the seabed through a chain to reduce the wave impact. One end of the connecting rod piston 11 is fixedly installed on the upper surface of the float 13, and the other end is assembled in the hydraulic chamber 121 of the internal circulation device 12. The connecting rod piston 11 makes a reciprocating motion synchronously in the hydraulic chamber 121 along with the reciprocating motion of the float 13, and is used to transport gas. The internal circulation device 12 is used to transport and compress the gas to increase the flow rate.

[0031] As Figure 6 shown, the internal circulation device 12 includes a hydraulic chamber 121, a constant pressure pipe 122, a hydraulic chamber disk 123, an S-shaped pressure transmission pipe 124, a booster chamber disk 125, a V-shaped pressure transmission pipe 126, a booster cylindrical pipe 127 and a power generation device 128; the constant pressure pipe 124 passes through and is fixedly installed in the hydraulic chamber disk 123 for balancing the internal and external air pressures. A plurality of hydraulic chambers 121 are arrayed and installed in the hydraulic chamber disk 123. The bottoms of the plurality of hydraulic chambers 121 are all connected to the S-shaped pressure transmission pipe 124. The S-shaped pressure transmission pipe 124 is used to transport gas. The other end of the S-shaped pressure transmission pipe 124 is installed on the booster chamber disk 125. The booster chamber disk 125 is used to collect gas. The bottom of the booster chamber disk 125 is connected to the booster cylindrical pipe 127 through the V-shaped pressure transmission pipe 126. The booster cylindrical pipe 127 is connected to the power generation device 128.

[0032] As Figure 7As shown, the power generation device 128 includes an impeller 1281, a gear 1282, a bearing 1283, a square bin 1284, and a current collector 1285. The impeller 1281 is installed and fixed in the keyway shaft of the gear 1282 to achieve coaxial rotation. The bearing 1283 is assembled on the square bin 1284, the gear 1282 is installed in the bearing 1283, and the current collector 1285 is installed and fixed on the square bin 1284 for storing electric energy. The power generation device 128 uses a vertical wind power impeller. When the device cavity moves up and down, the compressed air can make the impeller rotate, increasing the energy utilization efficiency.

[0033] The wave energy power generation device 1 drives the connecting rod piston 11 to reciprocate up and down in the hydraulic chamber 121 through the up and down reciprocating motion of the float 13 in the wave, and then converts the wave energy into mechanical energy and electric energy through the internal circulation device 2, realizing that the moonpool floating breakwater resists the impact of external waves and absorbs and converts the wave energy inside and outside the moonpool.

[0034] As Figure 2 As shown, the wave-dissipating groove in this embodiment adopts an elliptical wave-dissipating groove. The moonpool floating breakwater 3 can effectively shield the impact of external waves, improve the stability of the breakwater, and create an ideal environment for deep-sea aquaculture; the elliptical wave-dissipating grooves are evenly arranged at intervals along the inner wall of the cavity of the moonpool floating breakwater 3, thereby increasing the buoyancy of the floating breakwater on the basis of effectively resisting the impact of external waves outside the moonpool, and can also increase the viscosity and rotational flow of the fluid, thus dissipating wave energy. The elliptical wave-dissipating groove can also change the flow direction and speed of the fluid, guide the fluid to flow upward, form a stable air cushion area, reduce the direct impact of waves on the moonpool wall, thereby effectively suppressing the fluid oscillation inside the moonpool and improving the stability of the floating breakwater, realizing the utilization of clean energy.

[0035] The moonpool internal wave dissipating floating breakwater based on multiple floats and a common air pressure chamber of the present invention has two wave dissipating structures. The first is the column damping plate 16 in the wave energy power generation device 1. The column damping plate 16 can reduce wave impact and is fixed to the seabed through a chain at the bottom, connecting the device to the seabed. The second is the moonpool floating breakwater 3, which has a hollow structure inside and elliptical wave-dissipating grooves are opened on the inner surface to increase buoyancy and dissipate waves and reduce vibration.

Claims

1. A floating breakwater with wave dissipation in a moon pool based on a multi-buoy common air pressure cabin, characterized in that: It includes a wave energy power generation device and a moon pool floating breakwater. The wave energy power generation device is arranged in the cavity of the moon pool floating breakwater. The wave energy power generation device is connected to the moon pool floating breakwater. The inner wall of the cavity of the moon pool floating breakwater is provided with a plurality of wave-breaking grooves, which can increase the buoyancy of the floating breakwater on the basis of resisting the impact of waves outside the moon pool and suppress the oscillation of the fluid inside the moon pool.

2. The moon pool internal wave-breaking floating breakwater based on a multi-buoy common air pressure cabin according to claim 1 is characterized in that: The wave-breaking groove is an elliptical wave-breaking groove.

3. The moon pool internal wave-breaking floating breakwater based on a multi-buoy common air pressure cabin according to claim 1 is characterized in that: The wave energy power generation device adopts a multi-float common air pressure cabin wave energy power generation device, including a connecting rod piston, an internal circulation device, a float and a cylinder wall. The float is assembled on the outside of the cylinder wall. The cylinder wall is provided with an internal circulation device. A column damping plate is arranged at the bottom of the cylinder wall. The column damping plate is connected to the internal circulation device. One end of the connecting rod piston is fixedly mounted on the upper surface of the float, and the other end is assembled in the internal circulation device.

4. The moon pool internal wave-breaking floating breakwater based on a multi-buoy common air pressure cabin according to claim 3 is characterized in that: The internal circulation device includes multiple hydraulic cabins, and the multiple hydraulic cabin arrays are installed in the hydraulic cabin plate. The bottoms of the multiple hydraulic cabins are connected to S-shaped pressure transmission pipes, and the other ends of the S-shaped pressure transmission pipes are installed on the boosting cabin plate. The bottom of the boosting cabin plate is connected to the boosting cylindrical pipe, and the boosting cylindrical pipe is connected to the power generation device.

5. The moon pool internal wave-breaking floating breakwater based on a multi-buoy common air pressure cabin according to claim 4 is characterized in that: The bottom of the pressurized cabin is connected to the pressurized cylindrical tube through a V-shaped pressure transmission pipe.

6. The moon pool internal wave-breaking floating breakwater based on a multi-buoy common air pressure cabin according to claim 5 is characterized in that: A constant pressure pipe is installed through the hydraulic compartment.

7. The moon pool internal wave-breaking floating breakwater based on a multi-buoy common air pressure cabin according to claim 4 is characterized in that: The connecting rod piston is assembled in the hydraulic chamber of the internal circulation device.

8. The moon pool internal wave-breaking floating breakwater based on multi-buoy common air pressure cabin according to claim 3 is characterized in that: The column damping plate is connected to the internal circulation device via a supporting column.

9. The moon pool internal wave-breaking floating breakwater based on multi-buoy common air pressure cabin according to claim 8, characterized in that: A chain connecting buckle is provided at the bottom of the column damping plate, and is fixed to the seabed by the chain.

10. The moon pool internal wave-breaking floating breakwater based on multi-buoy common air pressure cabin according to claim 1, characterized in that: The wave energy power generation device is connected to the moon pool floating breakwater via a plurality of chains.

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