Breeding system based on fan single pile foundation and control method thereof

Abstract

The invention discloses a breeding system based on a fan single pile foundation and a control method of the breeding system. The breeding system comprises a breeding cabin bottom, a liquid level monitoring device, a water circulation device, an aeration oxygenation device, a ventilation device, an automatic feeding device, a water quality monitoring device, a fry throwing and fish collecting device, an underwater monitoring device, a power supply device and a control system. According to the method, inexhaustible seawater resources are utilized, an open circulating water mode is adopted, the temperature and salinity of a water body do not need to be adjusted, the culture environment in the most original state is simulated, the original life habits of fingerlings do not need to be changed, and the quality of the culture variety is improved; meanwhile, a fan single-pile foundation is combined, the original useless internal space and electric energy produced by a wind field are reasonably utilized, wind power cultivation is fused, the method is green and low-carbon, a water body foundation does not need to be additionally built, the comprehensive cost is reduced, and the overall yield of equipment is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of deep-sea fishery farming, and in particular to a farming system based on a fan monopile foundation and a control method thereof. Background Art

[0002] With the deterioration of the offshore water environment in recent years, aquaculture has gradually moved to the deep sea. Compared with offshore aquaculture, the deep sea has a wider water area, better water quality, more aquaculture species, and higher quality of farmed fish. Therefore, the gradual move of offshore aquaculture to deep and deep sea will be the future development trend. Compared with nearshore aquaculture or aquaculture in terrestrial waters, the environment of deep and deep sea aquaculture has greater advantages. At present, conventional factory aquaculture equipment on land or offshore mainly adopts a closed-loop water circulation mode: the aquaculture water body circulates in a relatively closed loop, and no fresh water is added. In order to remove the ammonia nitrogen content in the water body, it is necessary to add additional filters for filtering solid impurities and water treatment devices for removing ammonia nitrogen and necessary sterilization equipment. Due to the limitations of water temperature and salinity, the number of farmed fish species is limited. In addition, due to site constraints, a single water body is usually small, generally 30m 3 ~50m 3 The water depth does not exceed 2m, which changes the inherent living environment conditions of fish, and the water bodies used for aquaculture require additional construction of factories and carriers, which increases the breeding cost and occupies a large area. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a breeding system based on a single pile foundation of a wind turbine, which utilizes inexhaustible seawater resources, adopts an open circulating water mode, simulates the most original breeding environment, and improves the quality of the breeding varieties; at the same time, combined with the single pile foundation of the wind turbine, rationally utilizes its originally useless internal space and the electricity produced by the wind farm itself, does not need to build an additional water foundation, reduces the overall cost, and improves the overall rate of return of the equipment.

[0004] Another object of the present invention is to provide a control method for a breeding system based on a fan monopile foundation.

[0005] The purpose of the present invention is achieved through the following technical solutions: A breeding system based on a fan monopile foundation, comprising a breeding cabin bottom, a liquid level monitoring device, a water circulation device, an aeration and oxygenation device, a ventilation device, an automatic feeding device, a water quality monitoring device, a fry feeding and fish collecting device, an underwater monitoring device, a power supply device and a control system, wherein the breeding cabin bottom is arranged at the inner bottom of the fan monopile foundation, and a breeding cavity for fish breeding is formed by the breeding cabin bottom and the fan monopile foundation, the liquid level monitoring device is arranged inside the fan monopile foundation, and is used to measure the internal and external liquid level difference of the breeding cavity, the water circulation device is arranged on the fan monopile foundation and the breeding cabin bottom, and is used for the exchange of water inside the breeding cavity with external seawater and the discharge of internal solid residues and excrement, the aeration and oxygenation device is arranged inside the fan monopile foundation, and is used to provide compressed air to the water inside the breeding cavity to oxygenate the water, and the ventilation device is arranged at The fan single pile foundation is used to realize the exchange of air inside the breeding cavity and external air. The automatic feeding device is arranged inside the fan single pile foundation, and is used to put bait into the water body inside the breeding cavity. The water quality monitoring device is arranged inside the fan single pile foundation, and is used to monitor the water quality of the water body inside the breeding cavity in real time. The fry throwing and fish collecting device is arranged on the fan single pile foundation, and is used for the operation of fry throwing and fish collecting. The underwater monitoring device is arranged inside the fan single pile foundation, and is used to monitor the growth status of fish in the water body in real time. The power supply device is arranged above the water body inside the fan single pile foundation, and is used to provide electrical energy. The control system is electrically connected with the water circulation device, the aeration and oxygenation device, the ventilation device, the automatic feeding device, the water quality monitoring device, the fry throwing and fish collecting device and the underwater monitoring device, and is used to monitor and control the operation status of each device in real time.

[0006] Furthermore, the water circulation device includes a water supply pipe, a circulating water pump, a sewage pipe and a sewage valve. One end of the water supply pipe passes through the cylinder wall of the fan single pile foundation and extends into the aquaculture cavity, and the other end thereof is connected to the circulating water pump. The circulating water pump is electrically connected to a control system, and the control system controls the circulating water pump to transport external seawater to the aquaculture cavity inside the fan single pile foundation through the water supply pipe. One end of the sewage pipe passes through the bottom of the aquaculture cabin and extends into the aquaculture cavity, and the other end thereof passes through the cylinder wall of the fan single pile foundation and is connected to a sewage valve arranged outside the fan single pile foundation. The sewage valve is electrically connected to the control system, and the control system controls the sewage valve based on the internal and external liquid level difference information collected by the liquid level monitoring device, and then controls the liquid level difference between the water body inside the aquaculture cavity and the external seawater, so that the water body inside the aquaculture cavity can form a vortex, thereby discharging the internal solid residue and excrement through the sewage pipe.

[0007] Furthermore, the aeration and oxygenation device includes an air pressurizing device, an air supply valve, an air supply pipe and an aeration pipe. The air pressurizing device is arranged inside the fan single pile foundation and is located above the water body inside the breeding cavity. The air pressurizing device is electrically connected to the control system. The top of the air supply pipe is connected to the air pressurizing device through the air supply valve, and the bottom end thereof extends into the breeding cavity. The aeration pipe is connected to the bottom end of the air supply pipe and is horizontally arranged at the bottom of the breeding cavity. A plurality of micropores for exhaust are arranged on the circumferential surface thereof. The control system controls the air pressurizing device to pressurize ordinary air to preset parameters, and then distributes the compressed air to the water body inside the breeding cavity through the air supply pipe and the aeration pipe.

[0008] Furthermore, the ventilation device includes an air supply duct, an air supply fan, an exhaust duct and an exhaust fan, one end of the air supply duct is connected to the air supply fan arranged outside the fan single pile foundation, and the other end thereof passes through the cylinder wall of the fan single pile foundation and extends into the interior of the breeding cavity, and the external fresh air is transported to the closed space inside the breeding cavity through the air supply duct by the air supply fan, one end of the exhaust duct is connected to the exhaust fan arranged outside the fan single pile foundation, and the other end thereof passes through the cylinder wall of the fan single pile foundation and extends into the fan single pile foundation, and the air inside the breeding cavity is transported to the outside of the fan single pile foundation through the exhaust duct by the exhaust fan, thereby realizing air circulation.

[0009] Furthermore, the automatic feeding device includes a bait tank, a feeding machine and a feeding pipe. The bait tank is arranged inside the single pile foundation of the fan and is located above the water body inside the breeding cavity. The bottom of the bait tank is connected to the feeding pipe through the feeding machine. The feeding pipe extends downward and extends into the water body. The feeding machine is electrically connected to the control system, and the control system controls the feeding machine to feed bait into the water body at a regular and quantitative manner.

[0010] Furthermore, the power supply device is powered by a wind farm collector line. When the wind farm collector line loses power, a diesel generator set arranged inside the wind turbine monopile foundation is used to supply power.

[0011] Furthermore, it also includes a lighting system, which is arranged inside the wind turbine monopile foundation and is used to provide lighting to simulate the natural living environment of farmed fish.

[0012] Furthermore, the fry throwing and fish collecting device comprises a fry throwing and fish collecting tube arranged on the cylinder wall of the wind turbine single pile foundation, and the end of the fry throwing and fish collecting tube is provided with a plugging head.

[0013] Another object of the present invention is achieved by the following technical solutions: A control method for a breeding system based on a fan single pile foundation, including a water circulation control method, a sewage discharge control method and an oxygenation control method; The steps of the water circulation control method are as follows: S1.1. In the initial state, the sewage valve of the water circulation device is closed, and the water inside the culture cavity is isolated from the external environment; S1.2, transmit the monitored water quality data to the control system through the water quality monitoring device; S1.3. When the control system determines that the ammonia nitrogen content in the water is on an upward trend and reaches the threshold for starting the water circulation device, the control system controls the circulating water pump of the water circulation device to start and inject water into the aquaculture cavity at the maximum displacement, and at the same time opens the sewage valve to discharge the water inside the aquaculture cavity, thereby reducing the ammonia nitrogen content in the water by exchanging the internal and external water bodies; S1.4. When the control system determines that the ammonia nitrogen content in the water is on a downward trend, the control system controls the circulating water pump to reduce the displacement and continue to operate until the ammonia nitrogen content reaches the set lower limit, at which time the circulating water pump stops running; S1.5, repeating steps S1.1 to S1.4 according to a preset cycle to achieve internal and external water exchange; The steps of the pollution control method are as follows: S2.1. In the initial state, the sewage valve of the water circulation device is closed; S2.2. The control system controls the water circulation pump of the water circulation device to start and inject water into the culture cavity, and the water level in the culture cavity gradually rises; S2.3, the liquid level monitoring device measures the liquid level difference between the inside and outside of the breeding chamber, and transmits the liquid level difference information to the control system; S2.4. When the control system determines that the internal and external liquid level difference reaches the maximum set value, the control system controls the sewage valve to open so that the water inside the aquaculture chamber can be discharged through the sewage valve. The water inside the aquaculture chamber can form a vortex due to the internal and external liquid level difference, so that the solid residues and excrement accumulated on the bottom of the aquaculture tank are discharged together with the vortex; S2.5. When the control system determines that the internal and external liquid level difference is 0, the control system controls the sewage valve to close; S2.6, repeat steps S2.1 to S2.5 until the solid residues and excrement on the bottom of the aquaculture tank are cleaned up, thus completing the sewage discharge process; The steps of the oxygenation control method are as follows: S3.1. In the initial state, the sewage valve of the water circulation device and the gas supply valve of the aeration and oxygenation device are closed; S3.2, transmitting the monitored water quality data to the control system through the water quality monitoring device; S3.3. When the control system determines that the dissolved oxygen rate in the water reaches the start-up threshold of the aeration and oxygenation device, the control system controls the air booster device of the aeration and oxygenation device to start and the air delivery valve to open, thereby adding oxygen to the water body; S3.4. When the control system determines that the dissolved oxygen rate in the water reaches the upper limit, the control system controls the gas transmission valve to close and the air booster device to unload and close; S3.5, repeating steps S3.1 to S3.4 according to a preset cycle to achieve cyclic oxygenation.

[0014] A control method for a breeding system based on a fan single pile foundation, including a feeding control method and a fish collection control method; The steps of the feeding control method are as follows: S4.1. The control system calculates the feeding coefficient and feeding amount according to the culture density and cultured fish type parameters; S4.2. The feeder of the automatic feeding device feeds bait into the water body in a timely and quantitative manner according to the feeding coefficient and feeding amount under the control of the control system; The steps of the fish collection control method are as follows: S5.1. In the initial state, the sewage valve of the water circulation device is closed; S5.2. The control system starts the circulating water pump of the water circulation device and injects water into the culture cavity at the maximum displacement; S5.3, the liquid level difference between the inside and outside of the culture chamber is measured by the liquid level monitoring device and transmitted to the control system; S5.4, when the control system determines that the internal and external liquid level difference reaches the fish collection liquid level setting value, the fry throwing and fish collection device is opened and connected to the external live water boat; S5.5. The control system controls the circulating water pump to adjust the speed so as to maintain the liquid level inside the culture chamber stable; S5.6. Artificial or other methods of gathering fish are used to gather fish near the fry-dropping and fish-collecting device. Under the influence of the internal and external liquid level difference, the cultured fish automatically flow into the connected external live water vessel through the fry-dropping and fish-collecting device; S5.7. After the farmed fish are harvested, the control system stops the circulating water pump and opens the sewage valve, and the water inside the breeding chamber is discharged through the sewage valve; S5.8. When the control system determines that the internal and external liquid level difference is 0, the control system controls the sewage valve to close, blocks the fry throwing and fish collecting device, and completes the fish collecting.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The present invention directly utilizes external seawater for water exchange, and only requires a water pump to maintain the flow rate, eliminating the need for filtering equipment, water treatment equipment, and sterilization equipment, thereby reducing equipment investment costs and operating costs. At the same time, the water used is taken from nature, and the salinity and temperature are consistent with the natural environment, which is more conducive to the survival of farmed fish species.

[0016] 2. The water circulation device of the present invention can adjust the displacement of the water pump according to the real-time data of water quality, thereby reducing the overall energy consumption.

[0017] 3. Traditional closed water circulation aquaculture technology requires human assistance to regularly clean the bait residues and fish excrement at the bottom of the water body (cleaning the pool). The present invention uses the free liquid surface difference to form a strong vortex inside the water body when discharging sewage, effectively cleaning the bait residues and fish excrement at the bottom of the water body, reducing the operating costs during the aquaculture process.

[0018] 4. Traditional closed water circulation aquaculture technology requires dedicated land, plant, pool and other infrastructure, which occupies a large area. The present invention utilizes the internal space of the wind turbine's originally vacant single pile foundation, without the need to build additional plant, pool, etc., and directly utilizes the electricity generated by the wind farm. It is green and low-carbon, and the wind power generation device and the aquaculture device are integrated with each other, reducing the initial investment and improving the overall rate of return of the equipment.

[0019] 5. The water depth of the traditional closed water circulation aquaculture technology generally does not exceed 2m, which changes the inherent living habits of fish. The present invention utilizes the water body naturally formed by the wind turbine single pile foundation of the deep sea wind farm, and the water depth maintains the original water depth, which is closer to the natural living environment of the aquaculture products.

[0020] 6. Traditional closed water circulation aquaculture technology mostly uses manual throwing and feeding, and the feeding amount is based on experience, which inevitably causes waste of bait and a large amount of manual input. The present invention uses a control system combined with water quality parameters to automatically control the feeding amount, without manual labor, saving bait.

[0021] 7. Traditional closed water circulation aquaculture technology mostly uses manual fish collection, and the aquaculture products are transferred to the fish collection vehicle through net bags, cranes or manpower, which requires a lot of manpower and may cause physical damage to the fish during the fishing process. The present invention uses the internal and external liquid level difference, and the fish automatically flows into the live water boat, reducing the manpower demand, and the harvesting process basically does not cause physical damage to the aquaculture products. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the breeding system of the present invention.

[0023] Figure 2 This is a curve graph of ammonia nitrogen content in water. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Embodiment 1: like Figure 1 As shown, this embodiment provides a breeding system based on a fan single pile foundation, including a breeding cabin bottom 2, a liquid level monitoring device 3, a water circulation device, an aeration and oxygenation device, a ventilation device, an automatic feeding device, a water quality monitoring device 8, a fry feeding and fish collecting device 9, an underwater monitoring device 10, a power supply device 11 and a control system. The breeding cabin bottom 2 is arranged at the inner bottom of the fan single pile foundation 1, and can be set to a conical bottom or an inclined bottom according to actual needs. The breeding cabin bottom 2 and the fan single pile foundation 1 form a breeding cavity for fish breeding, and the breeding cavity is connected to the outside The seawater is separated to form an independent closed cavity. The liquid level monitoring device 3 (a liquid level monitoring sensor is used in this embodiment) is arranged inside the fan monopile foundation 1 to measure the internal and external liquid level difference of the aquaculture cavity. The water circulation device is arranged on the fan monopile foundation 1 and the aquaculture tank bottom 2 to exchange the water inside the aquaculture cavity with the external seawater and discharge the internal solid residue and excrement, so that the temperature / salinity of the water inside the aquaculture cavity is consistent with the natural environment. The aeration and oxygenation device is arranged inside the fan monopile foundation 1 to provide pressure to the water inside the aquaculture cavity. The air is compressed to increase oxygen for the water body. The ventilation device is arranged on the fan single pile foundation 1 to realize the exchange of air inside the culture cavity with external air. The automatic feeding device is arranged inside the fan single pile foundation 1 to feed bait into the water body inside the culture cavity. The water quality monitoring device 8 (the present embodiment adopts a water quality monitoring sensor) is arranged inside the fan single pile foundation 1 to monitor the water quality of the water body inside the culture cavity in real time, including key parameters such as ammonia nitrogen content, dissolved oxygen rate, temperature, salinity, and pH value. The fry feeding and fish collecting device 9 is arranged on the fan single pile foundation 1. The pile foundation 1 is used for the operation of releasing and collecting fish fry for farming. An underwater monitoring device 10 (an underwater monitoring instrument is used in this embodiment) is arranged inside the fan single pile foundation 1 for real-time monitoring of the growth status of fish in the water body. A power supply device 11 is arranged above the water body inside the fan single pile foundation 1 for providing electrical energy. The control system is electrically connected to the water circulation device, the aeration and oxygenation device, the ventilation device, the automatic feeding device, the water quality monitoring device 8, the fry releasing and fish collecting device 9 and the underwater monitoring device 10 for real-time monitoring and control of the operating status of each device.

[0026] Specifically, the water circulation device includes a water pipe 401, a circulating water pump 402, a sewage pipe 403 and a sewage valve 404. One end of the water pipe 401 passes through the cylinder wall of the fan monopile foundation 1 and extends into the aquaculture cavity, and the other end is connected to the circulating water pump 402. The circulating water pump 402 is electrically connected to the control system. The circulating water pump 402 adopts a variable frequency pump such as a centrifugal pump or a submersible pump. The control system controls the circulating water pump 402 to transport external seawater to the aquaculture cavity inside the fan monopile foundation 1 through the water pipe 401. At the same time, the control system can adjust the pump speed in real time according to the ammonia nitrogen content parameter collected by the water quality monitoring device 8. The speed and displacement are adjusted to meet the necessary conditions for the normal growth of farmed fish. One end of the sewage pipe 403 passes through the bottom of the breeding cabin 2 and extends into the breeding cavity, and the other end passes through the cylinder wall of the fan monopile foundation 1 and is connected to the sewage valve 404 arranged outside the fan monopile foundation 1. The sewage valve 404 is electrically connected to the control system. The control system controls the sewage valve 404 based on the internal and external liquid level difference information collected by the liquid level monitoring device 3, and then controls the liquid level difference between the water inside the breeding cavity and the external seawater, so that the water inside the breeding cavity can form a vortex, thereby discharging the internal solid residue and excrement through the sewage pipe 403.

[0027] Specifically, the aeration and oxygenation device includes an air pressurizing device 501, an air supply valve 502, an air supply pipe 503 and an aeration pipe 504. The air pressurizing device 501 is arranged inside the fan single pile foundation 1 and is located above the water body inside the breeding cavity. The air pressurizing device 501 is electrically connected to the control system. The top of the air supply pipe 503 is connected to the air pressurizing device 501 through the air supply valve 502, and its bottom end extends into the breeding cavity. The aeration pipe 504 is connected to the bottom end of the air supply pipe 503 and is horizontally arranged at the bottom of the breeding cavity. A plurality of micropores for exhaust are arranged on its circumference. The control system controls the air pressurizing device 501 to pressurize ordinary air to a preset parameter based on the dissolved oxygen rate collected by the water quality monitoring device 8, and then distributes the compressed air to the water body inside the breeding cavity through the air supply pipe 503 and the aeration pipe 504, so as to ensure that the dissolved oxygen rate of the water body is not lower than the required amount for fish growth, maintain fish activity, and promote fish feeding.

[0028] Specifically, the ventilation device includes an air supply pipe 601, an air supply fan 602, an exhaust pipe 603 and an exhaust fan 604. One end of the air supply pipe 601 is connected to the air supply fan 602 arranged outside the fan single pile foundation 1, and the other end thereof passes through the cylinder wall of the fan single pile foundation 1 and extends into the interior of the breeding cavity. The air supply fan 602 transports the external fresh air to the closed space inside the breeding cavity through the air supply pipe 601. One end of the exhaust pipe 603 is connected to the exhaust fan 604 arranged outside the fan single pile foundation 1, and the other end thereof passes through the cylinder wall of the fan single pile foundation 1 and extends into the interior of the fan single pile foundation 1. The air inside the breeding cavity is transported to the outside of the fan single pile foundation 1 through the exhaust pipe 603 through the exhaust fan 604, so as to realize air circulation and ensure the heat dissipation of each equipment and the ventilation needs in the closed space.

[0029] Specifically, the automatic feeding device includes a bait tank 701, a feeding machine 702 and a feeding pipe 703. The bait tank 701 is arranged inside the fan single pile foundation 1 and is located above the water body inside the breeding cavity. The bottom of the bait tank is connected to the feeding pipe 703 through the feeding machine 702. The feeding pipe 703 extends downward and extends into the water body. The feeding machine 702 is electrically connected to the control system. The control system controls the feeding machine 702 to feed bait into the water body at a regular and quantitative manner. By setting up one more set of bait tanks, necessary additives such as medicines or others can be added to the bait.

[0030] Specifically, the power supply device 11 is powered by a wind farm collection line. When the wind farm collection line loses power, a diesel generator set installed inside the wind turbine monopile foundation 1 is used to supply power to avoid power failure of various equipment causing water quality to deteriorate, thereby causing adverse effects such as the death of farmed fish.

[0031] Specifically, it also includes a lighting system 12, which is arranged inside the wind turbine single pile foundation 1 to provide lighting and use adjustable light intensity to simulate the natural living environment of farmed fish, which is beneficial to the healthy growth and physical improvement of farmed fish, and can also provide corresponding underwater lighting.

[0032] Specifically, the fry throwing and fish collecting device 9 comprises a fry throwing and fish collecting tube arranged on the cylinder wall of the wind turbine single pile foundation, and the end of the fry throwing and fish collecting tube is provided with a plugging head.

[0033] Embodiment 2: This embodiment provides a control method for a farming system based on a fan single pile foundation, including a water circulation control method, a sewage discharge control method, an oxygenation control method, a feeding control method, and a fish collection control method; The steps of the water cycle control method are as follows: S1.1. In the initial state, the sewage valve of the water circulation device is closed, and the water inside the culture cavity is isolated from the external environment; S1.2, transmit the monitored water quality data to the control system through the water quality monitoring device; S1.3. Under normal metabolic conditions after the farmed fish are fed, the ammonia nitrogen content in the water inside the culture cavity will gradually increase, and the water quality will continue to decline. Figure 2 As shown, the ammonia nitrogen content in the water begins to gradually increase, gradually approaching the red line of ammonia nitrogen content in the aquaculture water body. When the control system determines that the ammonia nitrogen content in the water is on an upward trend and reaches the threshold for starting the water circulation device, the control system controls the circulating water pump of the water circulation device to start and inject water into the aquaculture cavity at the maximum displacement, and at the same time opens the sewage valve to discharge the water in the aquaculture cavity, thereby reducing the ammonia nitrogen content in the water through the exchange of internal and external water bodies; S1.4. With the increase of the metabolism of farmed fish, the rate of ammonia nitrogen produced by farmed fish is slightly greater than the rate of ammonia nitrogen removed by water exchange, and the ammonia nitrogen content gradually reaches a peak value; as time goes on, the rate of ammonia nitrogen produced by farmed fish gradually decreases, the rate of water exchange remains unchanged, and the total ammonia nitrogen content in the water body begins to decrease after reaching the peak value. When the control system determines that the ammonia nitrogen content in the water is on a downward trend, the control system controls the circulating water pump to reduce the displacement and continue to operate until the ammonia nitrogen content reaches the set lower limit, and the circulating water pump stops running; S1.5. Repeat steps S1.1 to S1.4 according to a preset cycle to achieve the exchange of internal and external water bodies.

[0034] The steps of the blowdown control method are as follows, S2.1. In the initial state, the sewage valve of the water circulation device is closed; S2.2. After the farmed fish are fed, they metabolize over a period of time, and their excrement and bait materials accumulate on the bottom of the breeding cabin. If they are not cleaned in time, the oxygen consumption of the internal water will increase, causing the water quality to deteriorate. At this time, the control system controls the circulating water pump of the water circulation device to start and inject water into the breeding chamber, and the water level inside the breeding chamber gradually rises; S2.3, the liquid level monitoring device measures the liquid level difference between the inside and outside of the breeding chamber, and transmits the liquid level difference information to the control system; S2.4. When the control system determines that the internal and external liquid level difference reaches the maximum set value, the control system controls the sewage valve to open so that the water inside the aquaculture chamber can be discharged through the sewage valve. The water inside the aquaculture chamber can form a vortex due to the internal and external liquid level difference, so that the solid residues and excrement accumulated on the bottom of the aquaculture tank are discharged together with the vortex; S2.5. When the control system determines that the internal and external liquid level difference is 0, the control system controls the sewage valve to close; S2.6, repeat steps S2.1 to S2.5 until the solid residues and excrement on the bottom of the aquaculture tank are cleaned up, thus completing the sewage discharge process; The above-mentioned sewage discharge process can be set by the control system so that it is automatically executed according to the established procedure within a certain period of time after the farmed fish are fed, so as to achieve the purpose of cleaning the bait residue and the excrement of the farmed fish.

[0035] The steps of the oxygenation control method are as follows: S3.1. In the initial state, the sewage valve of the water circulation device and the gas supply valve of the aeration and oxygenation device are closed; S3.2, transmitting the monitored water quality data to the control system through the water quality monitoring device; S3.3. The dissolved oxygen rate in the water body decreases with the metabolism of farmed fish. When the control system determines that the dissolved oxygen rate in the water reaches the start-up threshold of the aeration and oxygenation device, the control system controls the air booster device of the aeration and oxygenation device to start and the air delivery valve to open, thereby adding oxygen to the water body; S3.4. As the metabolism of farmed fish decreases, oxygen consumption decreases accordingly, and the dissolved oxygen rate continues to increase. When the control system determines that the dissolved oxygen rate in the water has reached the upper limit, the control system controls the air supply valve to close, and the air booster device is unloaded and closed; S3.5, repeating steps S3.1 to S3.4 according to a preset cycle to achieve cyclic oxygenation.

[0036] The steps of feeding control method are as follows: S4.1. The control system calculates the feeding coefficient and feeding amount according to the culture density and cultured fish type parameters; S4.2. The feeder of the automatic feeding device feeds bait into the water body in a timely and quantitative manner according to the feeding coefficient and feeding amount under the control of the control system; the breeding management personnel can modify the input conditions and adjust the feeding parameters in time according to the feedback data of the control system.

[0037] The steps of the fish collection control method are as follows: S5.1. In the initial state, the sewage valve of the water circulation device is closed; S5.2. The control system starts the circulating water pump of the water circulation device and injects water into the culture cavity at the maximum displacement; S5.3, the liquid level difference between the inside and outside of the culture chamber is measured by the liquid level monitoring device and transmitted to the control system; S5.4, when the control system determines that the internal and external liquid level difference reaches the fish collection liquid level setting value, the fish collection pipe is opened and connected to the external live water boat; S5.5. The control system controls the circulating water pump to adjust the speed so as to maintain the liquid level inside the culture chamber stable; S5.6. Artificial or other methods are used to gather fish near the fish feeding and collecting pipes. Under the influence of the internal and external liquid level difference, the cultured fish automatically flow into the connected external live water vessel through the fish feeding and collecting pipes; S5.7. After the farmed fish are harvested, the control system stops the circulating water pump and opens the sewage valve, and the water inside the breeding chamber is discharged through the sewage valve; S5.8. When the control system determines that the internal and external liquid level difference is 0, the control system controls the sewage valve to close, blocks the fry throwing and fish collecting pipe, and completes the fish collection.

[0038] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and invention concept of the present invention within the scope disclosed by the present invention, which shall fall within the protection scope of the present invention.

Claims

1. A farming system based on a fan monopile foundation, characterized by: It includes a breeding cabin bottom, a liquid level monitoring device, a water circulation device, an aeration and oxygenation device, a ventilation device, an automatic feeding device, a water quality monitoring device, a fry feeding and fish collecting device, an underwater monitoring device, a power supply device and a control system. The breeding cabin bottom is arranged at the inner bottom of the fan monopile foundation, and the breeding cabin bottom and the fan monopile foundation form a breeding cavity for fish breeding. The liquid level monitoring device is arranged inside the fan monopile foundation to measure the internal and external liquid level difference of the breeding cavity. The water circulation device is arranged on the fan monopile foundation and the breeding cabin bottom to exchange the water body inside the breeding cavity with the external seawater and discharge the internal solid residue and excrement. The aeration and oxygenation device is arranged inside the fan monopile foundation to provide compressed air to the water body inside the breeding cavity to oxygenate the water body. The ventilation device is arranged on the fan monopile foundation. It is used to realize the exchange of air inside the breeding cavity and external air. The automatic feeding device is arranged inside the fan single pile foundation, and is used to put bait into the water body inside the breeding cavity. The water quality monitoring device is arranged inside the fan single pile foundation, and is used to monitor the water quality of the water body inside the breeding cavity in real time. The fry throwing and fish collecting device is arranged on the fan single pile foundation, and is used for breeding fry throwing and fish collecting operations. The underwater monitoring device is arranged inside the fan single pile foundation, and is used to monitor the growth status of fish in the water body in real time. The power supply device is arranged above the water body inside the fan single pile foundation, and is used to provide electrical energy. The control system is electrically connected with the water circulation device, the aeration and oxygenation device, the ventilation device, the automatic feeding device, the water quality monitoring device, the fry throwing and fish collecting device and the underwater monitoring device, and is used to monitor and control the operating status of each device in real time.

2. The aquaculture system based on a fan monopile foundation according to claim 1 is characterized in that: The water circulation device includes a water supply pipe, a circulating water pump, a sewage pipe and a sewage valve. One end of the water supply pipe passes through the cylinder wall of the fan monopile foundation and extends into the aquaculture cavity, and the other end thereof is connected to the circulating water pump. The circulating water pump is electrically connected to a control system, and the control system controls the circulating water pump to transport external seawater to the aquaculture cavity inside the fan monopile foundation through the water supply pipe. One end of the sewage pipe passes through the bottom of the aquaculture cabin and extends into the aquaculture cavity, and the other end thereof passes through the cylinder wall of the fan monopile foundation and is connected to a sewage valve arranged outside the fan monopile foundation. The sewage valve is electrically connected to the control system, and the control system controls the sewage valve based on the internal and external liquid level difference information collected by the liquid level monitoring device, and then controls the liquid level difference between the water body inside the aquaculture cavity and the external seawater, so that the water body inside the aquaculture cavity can form a vortex, thereby discharging the internal solid residue and excrement through the sewage pipe.

3. The aquaculture system based on a fan monopile foundation according to claim 1 is characterized in that: The aeration and oxygenation device includes an air pressurizing device, an air delivery valve, an air delivery pipe and an aeration pipe. The air pressurizing device is arranged inside the fan single pile foundation and is located above the water body inside the breeding cavity. The air pressurizing device is electrically connected to the control system. The top end of the air delivery pipe is connected to the air pressurizing device through the air delivery valve, and the bottom end thereof extends into the breeding cavity. The aeration pipe is connected to the bottom end of the air delivery pipe and is horizontally arranged at the bottom of the breeding cavity. A plurality of micropores for exhaust are arranged on the circumferential surface thereof. The control system controls the air pressurizing device to pressurize ordinary air to preset parameters, and then distributes the compressed air to the water body inside the breeding cavity through the air delivery pipe and the aeration pipe.

4. The aquaculture system based on a fan monopile foundation according to claim 1 is characterized in that: The ventilation device includes an air supply pipe, an air supply fan, an exhaust pipe and an exhaust fan. One end of the air supply pipe is connected to the air supply fan arranged outside the fan single pile foundation, and the other end thereof passes through the cylinder wall of the fan single pile foundation and extends into the interior of the breeding cavity. The air supply fan transports external fresh air to the closed space inside the breeding cavity through the air supply pipe. One end of the exhaust pipe is connected to the exhaust fan arranged outside the fan single pile foundation, and the other end thereof passes through the cylinder wall of the fan single pile foundation and extends into the interior of the fan single pile foundation. The air inside the breeding cavity is transported to the outside of the fan single pile foundation through the exhaust pipe by the exhaust fan to achieve air circulation.

5. The aquaculture system based on a fan monopile foundation according to claim 1 is characterized in that: The automatic feeding device includes a bait tank, a feeding machine and a feeding pipe. The bait tank is arranged inside the fan single pile foundation and is located above the water body inside the breeding cavity. The bottom of the bait tank is connected to the feeding pipe through the feeding machine. The feeding pipe extends downward and extends into the water body. The feeding machine is electrically connected to the control system, and the control system controls the feeding machine to feed bait into the water body at a regular and quantitative manner.

6. The aquaculture system based on a fan monopile foundation according to claim 1 is characterized in that: The power supply device is powered by a wind farm power collection line. When the wind farm power collection line loses power, a diesel generator set arranged inside the wind turbine monopile foundation is used to supply power.

7. The aquaculture system based on a fan monopile foundation according to claim 1 is characterized in that: It also includes a lighting system, which is arranged inside the wind turbine monopile foundation and is used to provide lighting to simulate the natural living environment of farmed fish.

8. The farming system based on a fan monopile foundation according to claim 1 is characterized in that: The seedling throwing and fish collecting device comprises a seedling throwing and fish collecting tube arranged on the cylinder wall of the wind turbine single pile foundation, and the end of the seedling throwing and fish collecting tube is provided with a plugging head.

9. A control method for a breeding system based on a fan monopile foundation according to any one of claims 1 to 8, characterized in that: Including water circulation control method, sewage control method and oxygenation control method; The steps of the water circulation control method are as follows: S1.

1. In the initial state, the sewage valve of the water circulation device is closed, and the water inside the culture cavity is isolated from the external environment; S1.2, transmit the monitored water quality data to the control system through the water quality monitoring device; S1.

3. When the control system determines that the ammonia nitrogen content in the water is on an upward trend and reaches the threshold for starting the water circulation device, the control system controls the circulating water pump of the water circulation device to start and inject water into the aquaculture cavity at the maximum displacement, and at the same time opens the sewage valve to discharge the water inside the aquaculture cavity, thereby reducing the ammonia nitrogen content in the water by exchanging the internal and external water bodies; S1.

4. When the control system determines that the ammonia nitrogen content in the water is on a downward trend, the control system controls the circulating water pump to reduce the displacement and continue to operate until the ammonia nitrogen content reaches the set lower limit, at which time the circulating water pump stops running; S1.5, repeating steps S1.1 to S1.4 according to a preset cycle to achieve internal and external water exchange; The steps of the pollution control method are as follows: S2.

1. In the initial state, the sewage valve of the water circulation device is closed; S2.

2. The control system controls the water circulation pump of the water circulation device to start and inject water into the culture cavity, and the water level in the culture cavity gradually rises; S2.3, the liquid level monitoring device measures the liquid level difference between the inside and outside of the breeding chamber, and transmits the liquid level difference information to the control system; S2.

4. When the control system determines that the internal and external liquid level difference reaches the maximum set value, the control system controls the sewage valve to open so that the water inside the aquaculture chamber can be discharged through the sewage valve. The water inside the aquaculture chamber can form a vortex due to the internal and external liquid level difference, so that the solid residues and excrement accumulated on the bottom of the aquaculture tank are discharged together with the vortex; S2.

5. When the control system determines that the internal and external liquid level difference is 0, the control system controls the sewage valve to close; S2.6, repeat steps S2.1 to S2.5 until the solid residues and excrement on the bottom of the aquaculture tank are cleaned up, thus completing the sewage discharge process; The steps of the oxygenation control method are as follows: S3.

1. In the initial state, the sewage valve of the water circulation device and the gas supply valve of the aeration and oxygenation device are closed; S3.2, transmitting the monitored water quality data to the control system through the water quality monitoring device; S3.

3. When the control system determines that the dissolved oxygen rate in the water reaches the start-up threshold of the aeration and oxygenation device, the control system controls the air booster device of the aeration and oxygenation device to start and the air delivery valve to open, thereby adding oxygen to the water body; S3.

4. When the control system determines that the dissolved oxygen rate in the water reaches the upper limit, the control system controls the gas transmission valve to close and the air booster device to unload and close; S3.5, repeating steps S3.1 to S3.4 according to a preset cycle to achieve cyclic oxygenation.

10. A control method for a breeding system based on a fan monopile foundation according to any one of claims 1 to 8, characterized in that: Including feeding control methods and fish collection control methods; The steps of the feeding control method are as follows: S4.

1. The control system calculates the feeding coefficient and feeding amount according to the culture density and cultured fish type parameters; S4.

2. The feeder of the automatic feeding device feeds bait into the water body in a timely and quantitative manner according to the feeding coefficient and feeding amount under the control of the control system; The steps of the fish collection control method are as follows: S5.

1. In the initial state, the sewage valve of the water circulation device is closed; S5.

2. The control system starts the circulating water pump of the water circulation device and injects water into the culture cavity at the maximum displacement; S5.3, the liquid level difference between the inside and outside of the culture chamber is measured by the liquid level monitoring device and transmitted to the control system; S5.4, when the control system determines that the internal and external liquid level difference reaches the fish collection liquid level setting value, the fry throwing and fish collection device is opened and connected to the external live water boat; S5.

5. The control system controls the circulating water pump to adjust the speed so as to maintain the liquid level inside the culture chamber stable; S5.

6. Artificial or other methods of gathering fish are used to gather fish near the fry-dropping and fish-collecting device. Under the influence of the internal and external liquid level difference, the cultured fish automatically flow into the connected external live water vessel through the fry-dropping and fish-collecting device; S5.

7. After the farmed fish are harvested, the control system stops the circulating water pump and opens the sewage valve, and the water inside the breeding chamber is discharged through the sewage valve; S5.

8. When the control system determines that the internal and external liquid level difference is 0, the control system controls the sewage valve to close, blocks the fry throwing and fish collecting device, and completes the fish collecting.

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