Mariculture-wave power generation device capable of stabilizing rolling, improving efficiency and regulating and controlling oxygenation

Abstract

The invention provides a mariculture-wave energy power generation device capable of achieving stabilization, efficiency improvement and adjustable oxygenation, and belongs to the technical field of mariculture engineering.The mariculture-wave energy power generation device capable of achieving stabilization, efficiency improvement and adjustable oxygenation comprises a mariculture device, a wave energy capturing device, an oxygenation device and a PTO system; the mariculture device is a large mariculture net cage and is fixed by a mooring system, and most of a main body of the mariculture device is immersed in water; the wave energy capturing device is an oscillating floater with a wide upper part and a narrow lower part, is distributed around the mariculture net cage in an annular array form, is connected to the top of a mariculture net cage frame through a transmission arm, and is used for driving the transmission arm to swing up and down under the action of waves; the oxygenation device and the PTO system are located on the top of the mariculture net cage frame and connected with the forked pressing structures at the tail ends of the transmission arms respectively. The problems that in the prior art, wave power generation, mariculture, adjustable oxygenation and wave breaking stabilization and stability maintaining cannot be achieved at the same time can be solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of marine aquaculture engineering, and in particular, relates to a marine aquaculture-wave energy power generation device that combines shaking reduction, efficiency enhancement and adjustable oxygenation. Background Art

[0002] As the world pays more and more attention to the development and utilization of marine resources, marine aquaculture, as a key component of the marine economy, is rapidly moving towards scale and intensification. However, marine aquaculture has encountered many difficult challenges in its development, among which ensuring the stability of the aquaculture environment, improving energy efficiency, and maintaining sufficient dissolved oxygen in the aquaculture water have become key factors restricting the further development of the industry.

[0003] From the perspective of the aquaculture environment, marine aquaculture cages are located in a complex natural marine environment and are extremely susceptible to strong impacts from waves. The ups and downs of the waves will cause the cages to move violently, which will not only easily cause serious damage to the cage structure and significantly shorten its service life, but will also disturb the farmed organisms and have an adverse effect on their growth and health. At present, the industry's conventional approach to dealing with the impact of waves on cages is to reinforce the cage structure. However, this method only alleviates the problem on the surface and cannot eliminate the negative impact of waves from the root. Moreover, the reinforcement process requires a high cost and may also limit the flexibility and operability of the cages, causing certain obstacles to aquaculture operations. At the same time, some devices attempt to reduce the impact of waves by changing the flow field around the cages, but these devices are often complex in structure, difficult to install and maintain, and fail to combine with other aquaculture needs.

[0004] Secondly, as a clean, renewable and high-quality energy source, wave energy has broad prospects for development and utilization. However, the current utilization of wave energy in marine aquaculture is extremely low, so the existing aquaculture equipment fails to achieve the coordinated development of aquaculture and energy utilization, resulting in energy waste. Summary of the invention

[0005] In view of this, the present invention provides a seawater aquaculture-wave energy power generation device that takes into account both roll reduction and efficiency improvement and adjustable oxygenation, which can solve the problem that the prior art cannot take into account wave energy power generation, seawater aquaculture, adjustable oxygenation and breaking wave roll reduction and stabilization.

[0006] The present invention is achieved in that:

[0007] The present invention provides a seawater aquaculture-wave energy power generation device that takes into account both rolling reduction and efficiency enhancement and can adjustably increase oxygen, comprising a seawater aquaculture device, a wave energy capture device, an oxygenation device and a PTO system 8; the seawater aquaculture device is a large seawater aquaculture cage, fixed by a mooring system, and most of its main body is immersed in water; the wave energy capture device is an oscillating float that is wide at the top and narrow at the bottom, distributed around the seawater aquaculture cage in the form of a ring array, connected to the top of the seawater aquaculture cage frame 1 through a transmission arm 4, and used to drive the transmission arm 4 to swing up and down under the action of waves; the oxygenation device and the PTO system 8 are located at the top of the seawater aquaculture cage frame 1, and are respectively connected to the forked downward pressure structure at the end of the transmission arm 4, and are used to make the downward pressure structure move up and down under the drive of waves, respectively driving the oxygenation device to transport dissolved oxygen into the seawater aquaculture cage and the PTO system 8 to generate electricity.

[0008] On the basis of the above technical solution, the seawater aquaculture-wave energy power generation device with both shaking reduction and efficiency enhancement and adjustable oxygenation of the present invention can also be improved as follows:

[0009] Among them, the large-scale marine aquaculture cage includes a cage body, a mooring system and aquaculture ancillary facilities; the cage body includes a marine aquaculture cage frame and a marine aquaculture cage protective net 2; the mooring system is connected to the anchor on the seabed through anchor chains and anchor cables.

[0010] The beneficial effects of adopting the above-mentioned improvement scheme are: the main body design of the cage fully meets the needs of marine aquaculture and has good wind and wave resistance, and the mooring system is set up to ensure the stable position of the cage in the seawater.

[0011] Furthermore, the main body of the cage is equipped with a buoyancy device for fixing the water layer of the main body of the cage; the aquaculture ancillary facilities include feeding equipment for feeding feed into the main body of the cage to improve the aquaculture efficiency.

[0012] The beneficial effects of adopting the above-mentioned improvement scheme are: by providing a buoyancy device, the cage can be suspended in a suitable water layer to ensure that the cultured organisms have a suitable living space; by providing a feeding device to feed the cage at a regular and quantitative time, the breeding efficiency is improved.

[0013] Furthermore, the buoyancy device is a float, which is made of light and high-strength material, and the feeding equipment is an automatic bait feeder; the aquaculture ancillary facilities also include monitoring equipment, which includes water quality sensors and temperature sensors.

[0014] The beneficial effect of adopting the above-mentioned improvement scheme is: by setting up monitoring equipment, such as water quality sensors, temperature sensors, etc., to monitor the aquaculture environment parameters in real time, and provide data support for aquaculture management.

[0015] Furthermore, the wave energy capture device includes a float 3, a transmission arm 4 and a forked downward pressure structure; the floats 3 are distributed around the seawater aquaculture device in the form of a circular array, and are designed to be wide at the top and narrow at the bottom; each float 3 is connected to the seawater aquaculture cage frame 1 through a transmission arm 4; one end of the transmission arm 4 is connected to the float 3, and the other end is fixed to the cage frame, which is used to transmit the movement of the float 3 under the action of waves to the cage frame, thereby absorbing wave energy and reducing the shaking of the cage; the forked downward pressure structure is arranged at the connection between the transmission arm 4 and the cage frame, and is respectively connected to the energy conversion connection component of the PTO system 8 and the downward pressure rod of the oxygenation device.

[0016] The beneficial effects of adopting the above-mentioned improvement scheme are: by setting the float, transmission arm and forked downward pressure structure, it is ensured that the float can produce obvious up and down swing under the action of waves to absorb wave energy; the transmission arm is used to transmit the movement to the PTO system, further realizing energy conversion to power the device.

[0017] Furthermore, the oxygen enrichment device includes an oxygen enrichment box 5, a lower pressure rod, an air pressure plate, an air inlet pipe 6 and an air outlet pipe 7; a relatively closed air chamber is opened inside the oxygen enrichment box 5, and two air holes are arranged at the bottom of the air chamber, one air hole is connected to the air inlet pipe 6, and the other air hole is connected to the air outlet pipe 7; the lower pressure rod serves as a power transmission component and is made of high-strength alloy material, one end of the lower pressure rod is connected to the forked lower pressure structure, and the other end passes through the top of the oxygen enrichment box 5 and is fixedly connected to the air pressure plate.

[0018] The beneficial effects of adopting the above-mentioned improvement scheme are: the oxygenation box is used as the core component of the entire oxygenation device, which has good sealing and pressure resistance; the down-pressure rod is made of high-strength alloy, so that it has good rigidity and toughness to ensure that it will not be easily deformed or broken when under pressure; when the down-pressure rod is pressed down by external force, it can accurately transmit power to the air pressure plate, pushing the air pressure plate to reciprocate in the oxygenation box.

[0019] Furthermore, the air compression plate is located inside the oxygenation box 5 and is closely connected to the lower pressure rod. The shape of the air compression plate is adapted to the shape of the air chamber inside the oxygenation box 5, and is usually round or square, and its edge is closely connected to the inner wall of the oxygenation box 5; the air inlet pipe 6 is installed on one side of the oxygenation box 5, one end of which is connected to the external atmosphere, and the other end extends to the internal air hole of the oxygenation box 5, and a one-way air inlet valve is provided on the air inlet pipe 6; the air outlet pipe 7 is located on the other side of the oxygenation box 5, connected to the internal air hole of the oxygenation box 5, and a one-way air outlet valve is also installed on the air outlet pipe 7.

[0020] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by tightly fitting the air compression plate to the air chamber, it can be ensured that the air compression plate can move up and down smoothly in the air chamber, and gas leakage from the edge can be prevented. During the up and down movement of the air compression plate, the air in the aeration box is compressed and released, so that efficient air entry and exit is achieved; by setting a one-way air inlet valve, external air is allowed to enter the aeration box, while preventing the air in the aeration box from flowing back to the outside; by setting a one-way air outlet valve with a function opposite to that of the one-way air inlet valve, only the compressed air in the aeration box is allowed to be discharged into the water body of the seawater aquaculture cage, while preventing the water body from flowing back into the aeration box.

[0021] Furthermore, the PTO system 8 includes an energy conversion mechanism, a generator and a control system; the energy conversion mechanism includes a hydraulic motor; the generator is connected to the output shaft of the energy conversion mechanism and is used to convert the mechanical energy output by the energy conversion mechanism into electrical energy.

[0022] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting up a PTO system, the mechanical energy output by the energy conversion mechanism is converted into electrical energy by means of a generator, so as to provide power support for the ancillary facilities of the seawater aquaculture device, such as feeding equipment, monitoring equipment, etc., and reduce dependence on the external power grid; the motion state, power generation power, and aquaculture environment parameters of the wave energy capture device are monitored in real time through the control system.

[0023] Furthermore, the control system includes a sensor module, a data processing unit and an execution unit, and the sensor module includes a pressure sensor, a flow sensor and a current sensor.

[0024] Furthermore, a pressure sensor is installed in the hydraulic circuit to monitor the hydraulic system pressure in real time, a flow sensor is used to measure the flow of hydraulic oil; a current sensor monitors the current in the circuit, and a data processing unit uses a high-performance microprocessor.

[0025] Compared with the prior art, the beneficial effect of the seawater aquaculture-wave energy power generation device provided by the present invention, which takes into account both roll reduction and efficiency enhancement and can be adjusted to increase oxygen, is that the wave energy is absorbed by the movement of the wave energy oscillating float to achieve the purpose of wave energy power generation and oxygenation of the seawater aquaculture cage. The movement of the oscillating float will also affect the surrounding wave conditions. The absorption of waves and breaking waves have the effect of weakening the sea conditions to maintain the roll reduction and stability of the seawater aquaculture cage. In addition, the movement of the float will also provide reverse pulling force for the cage to move with the waves, thereby maintaining the roll reduction and stability of the cage; the bifurcated downward pressure structure can simultaneously achieve the effects of wave energy power generation and oxygenation. When there is sufficient oxygen, the movement of the bifurcated downward pressure structure can be weakened by increasing the PTO damping to reduce oxygenation, and vice versa. In addition, when oxygen is seriously insufficient, the electricity generated by the wave energy power generation device can also generate electricity for the additionally equipped aerator to achieve adjustable oxygen supply; the control system monitors the movement state, power generation power and aquaculture environment parameters of the wave energy absorption device in real time, collects data through sensors, and after analysis and processing, the control system can adjust the operating parameters of the energy conversion mechanism, such as adjusting the displacement of the hydraulic motor, to optimize energy capture and conversion efficiency. At the same time, it has overpressure and overcurrent protection functions to ensure the safe and stable operation of the PTO system, solving the problem that the existing device cannot take into account wave energy power generation, seawater aquaculture, adjustable oxygenation and wave breaking stabilization; BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0027] Figure 1 It is a side view schematic diagram of the seawater aquaculture wave energy power generation device disclosed in the present invention;

[0028] Figure 2 It is a front view schematic diagram of the seawater aquaculture-wave energy power generation device disclosed in the present invention;

[0029] Figure 3 It is a left schematic view of the seawater aquaculture-wave energy power generation device disclosed in the present invention;

[0030] Figure 4 It is a rear view schematic diagram of the seawater aquaculture-wave energy power generation device disclosed in the present invention;

[0031] Figure 5 It is a top view schematic diagram of the seawater aquaculture-wave energy power generation device disclosed in the present invention;

[0032] Figure 6It is a front cross-sectional schematic diagram of the seawater aquaculture-wave energy power generation device disclosed in the present invention;

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1. Marine aquaculture cage frame; 2. Marine aquaculture cage protection net; 3. Float; 4. Transmission arm; 5. Oxygenation box; 6. Air inlet pipe; 7. Air outlet pipe; 8. PTO system. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0036] like Figure 1-5 As shown, an embodiment of a seawater aquaculture-wave energy power generation device with both anti-rolling and efficiency-enhancing and controllable oxygenation provided by the present invention is provided. In this embodiment, it includes a seawater aquaculture device, a wave energy capture device, an oxygenation device and a PTO system; the seawater aquaculture device is a large seawater aquaculture cage fixed by a mooring system, and most of its main body is immersed in water; the wave energy capture device is an oscillating float that is wide at the top and narrow at the bottom, distributed around the seawater aquaculture cage in the form of a ring array, connected to the top of the seawater aquaculture cage frame through a transmission arm, and is used to drive the transmission arm to swing up and down under the action of waves; the oxygenation device and the PTO system are located at the top of the seawater aquaculture cage frame, and are respectively connected to the forked downward pressure structure at the end of the transmission arm, and are used to make the downward pressure structure move up and down under the drive of waves, respectively driving the oxygenation device to transport dissolved oxygen into the seawater aquaculture cage and the PTO system to generate electricity.

[0037] Among them, in the above technical scheme, the large-scale seawater aquaculture cage includes a cage body, a mooring system and aquaculture ancillary facilities; the cage body includes a seawater aquaculture cage frame and a seawater aquaculture cage protective net; the mooring system is connected to the anchor on the seabed through anchor chains and anchor cables.

[0038] Among them, the shape of the cage can be selected according to the aquaculture species and sea conditions, and the common ones are square, round, etc.

[0039] Furthermore, in the above technical solution, the cage body is equipped with a buoyancy device for fixing the water layer of the cage body; the aquaculture ancillary facilities include feeding equipment for feeding feed into the cage body to improve aquaculture efficiency.

[0040] Among them, the float can be made of fiberglass, which can provide sufficient buoyancy and resist seawater erosion.

[0041] Furthermore, in the above technical solution, the buoyancy device is a float, which is made of lightweight and high-strength material, and the feeding equipment is an automatic feeding machine; the aquaculture ancillary facilities also include monitoring equipment, which includes water quality sensors and temperature sensors.

[0042] Furthermore, in the above technical solution, the wave energy capture device includes a float, a transmission arm and a forked downward pressure structure; the floats are distributed around the seawater aquaculture device in the form of a circular array, adopting a design that is wide at the top and narrow at the bottom; each float is connected to the seawater aquaculture cage frame through a transmission arm; one end of the transmission arm is connected to the float, and the other end is fixed to the cage frame, which is used to transmit the movement of the float under the action of waves to the cage frame, thereby absorbing wave energy and reducing the shaking of the cage; the forked downward pressure structure is arranged at the connection between the transmission arm and the cage frame, and is respectively connected to the energy conversion connection component of the PTO system and the downward pressure rod of the oxygenation device.

[0043] Among them, the float material is made of lightweight and buoyant materials, such as polyurethane foam and carbon fiber composite materials, to ensure that it can produce obvious up and down swing under the action of waves; the transmission arm is made of high-strength alloy with good toughness and corrosion resistance, and its length and angle can be adjusted according to actual wave conditions and cage position.

[0044] Furthermore, in the above technical scheme, the oxygenation device includes an oxygenation box, a lower pressure rod, an air pressure plate, an air inlet pipe and an air outlet pipe; a relatively closed air chamber is opened inside the oxygenation box, and two air holes are arranged at the bottom of the air chamber, one air hole is connected to the air inlet pipe, and the other air hole is connected to the air outlet pipe; the lower pressure rod serves as a power transmission component, and is made of high-strength alloy material, one end of the lower pressure rod is connected to the forked lower pressure structure, and the other end passes through the top of the oxygenation box and is fixedly connected to the air pressure plate.

[0045] Furthermore, in the above technical solution, the air compression plate is located inside the oxygenation box and is closely connected to the lower pressure rod. The shape of the air compression plate is adapted to the shape of the air chamber inside the oxygenation box, and is usually round or square, and its edge is closely connected to the inner wall of the oxygenation box; the air inlet pipe is installed on one side of the oxygenation box, one end of which is connected to the external atmosphere, and the other end extends to the air hole inside the oxygenation box, and a one-way air inlet valve is provided on the air inlet pipe; the air outlet pipe is located on the other side of the oxygenation box, connected to the air hole inside the oxygenation box, and a one-way air outlet valve is also installed on the air outlet pipe.

[0046] The air compressor plate is made of lightweight but strong materials, such as aluminum alloy or carbon fiber composite materials; the one-way air inlet valve usually adopts a spring-type or gravity-type valve structure. When the air pressure in the aeration box is lower than the external atmospheric pressure, the valve automatically opens to allow air to enter. When the air pressure in the aeration box rises, the valve automatically closes to ensure that the air pressure in the aeration box is stable; the diameter and length of the air outlet pipe are reasonably designed according to the actual oxygenation needs to ensure that the compressed air can be released into the water at an appropriate flow rate and flow rate to improve the oxygenation effect.

[0047] Furthermore, in the above technical solution, the PTO system includes an energy conversion mechanism, a generator and a control system; the energy conversion mechanism includes a hydraulic motor; the generator is connected to the output shaft of the energy conversion mechanism, and is used to convert the mechanical energy output by the energy conversion mechanism into electrical energy.

[0048] Among them, when the mechanical energy transmitted by the wave energy capture device is converted into kinetic energy of the liquid flow, the hydraulic motor is driven to operate; the generator adopts a high-efficiency permanent magnet synchronous generator, and the power and voltage parameters of the generator are designed to match the electricity demand of the breeding facilities; the control system monitors the movement state, power generation power and breeding environment parameters of the wave energy absorption device in real time, collects data through sensors, and after analysis and processing, the control system can adjust the operating parameters of the energy conversion mechanism, such as adjusting the displacement of the hydraulic motor, etc., to optimize the energy capture and conversion efficiency. At the same time, it has over-voltage and over-current protection functions to ensure the safe and stable operation of the PTO system.

[0049] Furthermore, in the above technical solution, the control system includes a sensor module, a data processing unit and an execution unit, and the sensor module includes a pressure sensor, a flow sensor and a current sensor.

[0050] Among them, the high-performance microprocessor has a built-in control algorithm. When the sensor module collects data, it is transmitted to the data processing unit. The algorithm analyzes and processes the data according to the preset energy conversion efficiency target and the system safety threshold. For example, if the current wave energy changes cause the pressure and flow of the hydraulic system to change, the algorithm calculates the optimal hydraulic motor displacement adjustment value, and the execution unit works according to the instructions of the data processing unit, such as controlling the hydraulic oil flow through the electro-hydraulic proportional valve, and then accurately adjusting the displacement of the hydraulic motor to optimize the operating parameters of the energy conversion mechanism. For the over-pressure and over-current protection functions, when the current sensor detects that the current exceeds the set over-current threshold, or the pressure sensor detects that the pressure exceeds the over-pressure threshold, the data processing unit immediately sends an instruction to the execution unit, and the execution unit quickly acts, such as controlling the relay to cut off the circuit, or adjusting the safety valve to open the pressure relief, to ensure the safe and stable operation of the PTO system. The PTO system is equipped with an advanced control system, which collects pressure, flow and other data in the energy conversion process in real time through sensors, and accurately adjusts the operating parameters of the energy conversion mechanism through algorithm analysis, such as using the electro-hydraulic proportional valve to control the displacement of the hydraulic motor to achieve efficient energy capture and conversion. At the same time, the built-in overvoltage and overcurrent detection circuit will quickly activate the protection mechanism when an abnormality is detected to ensure the safe and stable operation of the PTO system.

[0051] Furthermore, in the above technical solution, a pressure sensor is installed in the hydraulic circuit to monitor the hydraulic system pressure in real time, and a flow sensor is used to measure the hydraulic oil flow; a current sensor monitors the current in the circuit, and a data processing unit uses a high-performance microprocessor.

[0052] Specifically, the principle of the present invention is to achieve the purpose of wave energy generation and oxygenation of seawater aquaculture cages by absorbing wave energy through the movement of wave energy oscillating floats. The movement of the oscillating float will also affect the surrounding wave conditions. The absorption of waves and breaking waves have the effect of weakening the sea conditions to maintain the anti-roll and stability of the seawater aquaculture cages. In addition, the movement of the float will also provide a reverse pulling force for the cages to move with the waves, thereby maintaining the anti-roll and stability of the cages. The bifurcated downward pressure structure can achieve the effects of wave energy generation and oxygenation at the same time. When there is sufficient oxygen, the movement of the bifurcated downward pressure structure can be weakened by increasing the PTO damping to reduce oxygenation, and vice versa. In addition, when oxygen is seriously insufficient, the electric energy generated by the wave energy power generation device can also generate electricity for the additionally equipped aerator, thereby realizing adjustable oxygen supply. The present invention solves the problem that the existing devices cannot take into account wave energy generation, seawater aquaculture, adjustable oxygenation and anti-roll and stabilization of breaking waves.

[0053] During the operation of the PTO system, when wave energy acts on the device and causes changes in the pressure and flow of the hydraulic system, the pressure sensor and flow sensor in the sensor module collect data in real time and transmit it to the data processing unit. The data processing unit quickly calculates the hydraulic motor displacement adjustment value required to achieve the best energy conversion efficiency based on the built-in algorithm. For example, if the current waves are relatively gentle and the pressure and flow are low, the algorithm calculates that the hydraulic motor displacement needs to be reduced to match the energy input. Subsequently, the data processing unit issues a command to the execution unit, which controls the electro-hydraulic proportional valve to adjust the hydraulic oil flow, thereby achieving precise adjustment of the hydraulic motor displacement. Throughout the process, the current sensor continuously monitors the circuit current. If the current exceeds the overcurrent threshold due to an emergency, such as an electrical fault or external interference, the data processing unit immediately responds and issues a circuit cut-off command to the execution unit. The execution unit quickly controls the relay to cut off the circuit to prevent the equipment from being damaged by overcurrent. Similarly, when the pressure sensor detects that the pressure exceeds the overpressure threshold, the data processing unit instructs the execution unit to open the safety valve for pressure relief to ensure system safety. Through such real-time monitoring and precise control, the PTO system can operate efficiently and stably under different wave energy conditions, providing solid support for the stable operation of marine aquaculture-wave energy power generation devices.

Claims

1. A seawater aquaculture-wave energy power generation device with both rocking reduction and efficiency enhancement and adjustable oxygenation, comprising a seawater aquaculture device, a wave energy capture device, an oxygenation device and a PTO system; the seawater aquaculture device is a large seawater aquaculture cage fixed by a mooring system, and most of its main body is immersed in water; the wave energy capture device is an oscillating float that is wide at the top and narrow at the bottom, distributed around the seawater aquaculture cage in the form of a ring array, connected to the top of the seawater aquaculture cage frame through a transmission arm, and used to drive the transmission arm to swing up and down under the action of waves; the oxygenation device and the PTO system are located at the top of the seawater aquaculture cage frame, respectively connected to the forked downward pressure structure at the end of the transmission arm, and used to make the downward pressure structure move up and down under the drive of waves, respectively driving the oxygenation device to transport dissolved oxygen into the seawater aquaculture cage and the PTO system to generate electricity.

2. The seawater aquaculture-wave energy power generation device with both anti-sway and efficiency-enhancing and controllable oxygenation according to claim 1 is characterized in that: Large-scale marine aquaculture cages include a cage body, a mooring system and ancillary aquaculture facilities; the cage body includes a marine aquaculture cage frame and a marine aquaculture cage protective net; the mooring system is connected to the anchor on the seabed through anchor chains and cables.

3. The seawater aquaculture-wave energy power generation device with both rocking reduction and efficiency enhancement and adjustable oxygenation according to claim 2 is characterized in that: The main body of the cage is equipped with a buoyancy device to fix the water layer of the main body of the cage; the aquaculture ancillary facilities include feeding equipment, which is used to put feed into the main body of the cage to improve aquaculture efficiency.

4. The seawater aquaculture-wave energy power generation device with both anti-sway and efficiency-enhancing and controllable oxygenation according to claim 3 is characterized in that: The buoyancy device is a float, which is made of lightweight and high-strength material, and the feeding equipment uses an automatic bait feeder; the breeding ancillary facilities also include monitoring equipment, which includes water quality sensors and temperature sensors.

5. The seawater aquaculture-wave energy power generation device with both anti-sway and efficiency-enhancing and controllable oxygenation according to claim 4 is characterized in that: The wave energy capture device includes a float, a transmission arm and a forked downward pressure structure; the floats are distributed around the seawater aquaculture device in the form of a circular array, and are designed to be wide at the top and narrow at the bottom; each float is connected to the seawater aquaculture cage frame through a transmission arm; one end of the transmission arm is connected to the float, and the other end is fixed to the cage frame, which is used to transmit the movement of the float under the action of waves to the cage frame, thereby absorbing wave energy and reducing the shaking of the cage; the forked downward pressure structure is arranged at the connection between the transmission arm and the cage frame, and is respectively connected to the energy conversion connection component of the PTO system and the downward pressure rod of the oxygenation device.

6. The seawater aquaculture-wave energy power generation device with both rocking reduction and efficiency enhancement and adjustable oxygenation according to claim 5 is characterized in that: The oxygenation device comprises an oxygenation box, a lower pressure rod, an air pressure plate, an air inlet pipe and an air outlet pipe; a relatively closed air chamber is provided inside the oxygenation box, and two air holes are provided at the bottom of the air chamber, one air hole is connected to the air inlet pipe, and the other air hole is connected to the air outlet pipe; the lower pressure rod serves as a power transmission component and is made of high-strength alloy material, one end of the lower pressure rod is connected to the forked lower pressure structure, and the other end passes through the top of the oxygenation box and is fixedly connected to the air pressure plate.

7. The seawater aquaculture-wave energy power generation device with both anti-rolling and efficiency-enhancing and controllable oxygenation according to claim 6 is characterized in that: The air compression plate is located inside the oxygenation box and is closely connected to the lower pressure rod. The shape of the air compression plate is adapted to the shape of the air chamber inside the oxygenation box, usually round or square, and its edge is closely connected to the inner wall of the oxygenation box; the air inlet pipe is installed on one side of the oxygenation box, one end of which is connected to the external atmosphere, and the other end extends to the air holes inside the oxygenation box, and a one-way air inlet valve is provided on the air inlet pipe; the air outlet pipe is located on the other side of the oxygenation box, connected to the air holes inside the oxygenation box, and a one-way air outlet valve is also installed on the air outlet pipe.

8. The seawater aquaculture-wave energy power generation device with both anti-sway and efficiency-enhancing and controllable oxygenation according to claim 7 is characterized in that: The PTO system includes an energy conversion mechanism, a generator and a control system; the energy conversion mechanism includes a hydraulic motor; the generator is connected to the output shaft of the energy conversion mechanism and is used to convert the mechanical energy output by the energy conversion mechanism into electrical energy.

9. The seawater aquaculture-wave energy power generation device with both rocking reduction and efficiency enhancement and adjustable oxygenation according to claim 8, characterized in that: The control system includes a sensor module, a data processing unit and an execution unit. The sensor module includes a pressure sensor, a flow sensor and a current sensor.

10. The seawater aquaculture-wave energy power generation device with both rocking reduction and efficiency enhancement and adjustable oxygenation according to claim 9, characterized in that: The pressure sensor is installed in the hydraulic circuit to monitor the hydraulic system pressure in real time, the flow sensor is used to measure the hydraulic oil flow; the current sensor monitors the current in the circuit, and the data processing unit uses a high-performance microprocessor.

Images