An integrated device and method for preventing scour of offshore wind power foundation and aquaculture cage

Abstract

The present invention provides an integrated device and method for offshore wind power foundation anti-scour and aquaculture cages, including a grouting system on a mother ship and an integrated system for anti-scour and aquaculture cages, the grouting system including an air compressor, a sealable transparent pressure-resistant barrel, a detachable partition, a pressure gauge, a slurry delivery valve and a high-pressure slurry delivery pipe, the integrated device including a pressure-resistant grouting pipe, a flexible anti-scour non-woven fabric, a lead block, an aquaculture cage, and a circular cage, the grouting pipe is fixed by a circular cage and covered with a flexible anti-scour non-woven fabric, and an aquaculture cage is set on top. The present invention also discloses a method for using the above device. The integrated system for offshore wind power foundation anti-scour and aquaculture cages of the present invention can realize an effective combination of an offshore wind power foundation anti-scour device and a fishery cage, effectively solving the problems of reduced foundation stability and bearing capacity due to seabed scour, as well as the lack of offshore aquaculture and fish trapping devices.

Description

Technical Field

[0001] The present invention relates to the field of offshore wind power foundation anti-scouring and fishery breeding equipment technology, and in particular to an offshore wind power foundation anti-scouring and breeding cage integrated device and method. Background Art

[0002] Offshore wind power generation is a clean and environmentally friendly way of generating electricity. All countries are vigorously developing it, and the installed capacity of offshore wind turbines in my country has also increased year by year. The "Opinions of the Central Committee of the Communist Party of China and the State Council on Completely, Accurately and Comprehensively Implementing the New Development Concept and Doing a Good Job in Carbon Peaking and Carbon Neutrality" issued in 2021 pointed out that by 2060, a green, low-carbon, circular economic system and a clean, low-carbon, safe and efficient energy system will be fully established, energy utilization efficiency will reach the international advanced level, the proportion of non-fossil energy consumption will reach more than 80%, and the carbon neutrality goal will be successfully achieved. To achieve this goal, the scale of offshore wind power continues to expand. With the increasing scarcity of resources for offshore aquaculture, aquaculture is gradually developing towards the open sea. The "14th Five-Year Plan" points out that it is necessary to strengthen the protection of fishery resources and promote the transformation of marine fisheries to deep sea and ocean. With the gradual expansion of the scale of offshore wind power and the change in the strategic orientation of fisheries, the following issues still need urgent attention;

[0003] 1. The existence of offshore wind power foundations breaks the original flow field characteristics of the foundation neighborhood and the original balance of scouring and sedimentation on the seabed, causing the silt around the foundation to be transported away, and eventually forming scouring pits on the seabed around the offshore wind power foundation. At the same time, the impact of waves and water flow on the foundation will also produce downwelling in front of the pile, horseshoe vortex and wake vortex, which aggravates the occurrence of scouring phenomenon; foundation scouring will reduce the stability of the foundation, affect the vibration frequency of the wind turbine structure for safe operation, induce resonance, and affect the operation and life of the offshore wind turbine;

[0004] 2. At present, the main protection methods are riprap protection and sacrificial piles. The protection effect of the sacrificial pile method drops sharply when the waves and water flow change; riprap scour protection will produce adjacent deflection scour ports, which will cause damage to the piles or adjacent structures, and it may cause additional damage, such as settlement damage, shear damage and edge damage under continuous water flow. Therefore, a better protection method is urgently needed;

[0005] 3. Grouting, as a special foundation treatment method, has the advantages of low cost, high efficiency, simple operation and strong applicability. Grouting involves squeezing a cementing mud into the soil bed through pressure, thereby diffusing and filling the gaps between particles. The grouting reinforcement method can effectively improve the properties of the seabed mud around the foundation. How to efficiently put grouting technology into practical application for offshore wind power foundation anti-scour has become an urgent and realistic issue;

[0006] 4. The existing offshore wind power foundation grouting scour protection device does not take into account the protection of sediment after grouting, fails to effectively combine the scour protection device with the aquaculture device, fails to fully utilize the economic and ecological benefits of the single pile, and fails to organically combine offshore aquaculture with scour protection;

[0007] 5. With the gradual development of cage technology and the water advantages of offshore wind farms, how to comprehensively utilize marine aquaculture and offshore wind power to generate marine ecological benefits, while reducing the cost of marine fishery farming and further improving economic benefits, this problem has not been fully solved. Summary of the invention

[0008] In order to overcome the technical problems existing in the prior art, the present invention provides an integrated device and method for offshore wind power foundation anti-scour and aquaculture cages.

[0009] The technical solution adopted by the present invention to solve the problem is an integrated device for anti-scour of offshore wind power foundation and aquaculture cage, including an integrated device for anti-scour of offshore wind power foundation and aquaculture cage and a grouting system. The integrated device for anti-scour of offshore wind power foundation and aquaculture cage includes six grouting pipes connected by a circular cage, an annular aquaculture cage, and a flexible anti-scour non-woven fabric, wherein the grouting pipe has a grouting port on the top and a grouting port on the bottom, and the grouting system is connected to the top grouting port, and the grouting flows out from the lower grouting port to pour the anti-scour material onto the seabed around the foundation, thereby preventing the formation of scour pits around the foundation, and the non-woven fabric is fixed to the upper part of multiple grouting pipes through annular circular hoops to form a protective clothing structure with the grouting pipes as the supporting skeleton, and buried in the anti-scour non-woven fabric at the end of the edge. Lead blocks are placed so that it can be fixed on the seabed after installation. The bottom of the annular aquaculture cage is connected as a whole by a tie rod and placed on the anti-scour non-woven fabric. The bottom is fixed to multiple grouting pipes by anchor rods. The grouting system includes an air compressor, a sealed transparent pressure-resistant barrel, a detachable partition, a pressure gauge, a slurry delivery valve and a high-pressure slurry delivery pipe. The air compressor, the sealed transparent pressure-resistant barrel and the offshore wind power foundation anti-scour and aquaculture cage integrated device are connected in series in sequence through the high-pressure slurry delivery pipe, and grouting is carried out by starting the air compressor. The sealed transparent pressure-resistant barrel is provided with a detachable partition. The bottom of the transparent pressure-resistant barrel has 12 slurry delivery valves symmetrically distributed with partitions, which can be connected to up to 6 Y-shaped slurry delivery pipes, and then connected to the offshore wind power foundation anti-scour and aquaculture cage integrated device.

[0010] Specifically, as shown in 1, the grouting pipe is a pressure-resistant pipe, comprising two parts, the upper part is a straight pipe, the lower part is a curved pipe, the inner diameter of the cylindrical cage is D, and the circular grouting port at the lower part of the grouting pipe is 0.2~0.3 D away from the outer surface of the cylindrical cage in the horizontal direction;

[0011] Specifically, Figure 2 and Figure 3As shown, there are six grouting pipes, and the upper parts of the six grouting pipes are spaced 60 degrees apart, tied with round hoops and welded to the cylindrical cage to form a ring-shaped arrangement;

[0012] Specifically, Figure 2 As shown, the grouting pipe extends longitudinally from top to bottom after being fixed. The lower part of the grouting pipe extends downward and the lower part extends outward;

[0013] Preferably, the lower part of the grouting pipe is supported on the seabed surface by a tripod, which can provide a certain grouting height for the grouting pipe to prevent blockage while playing a supporting role during installation. The grouting port includes a circular grouting port at the bottom and a square grouting port below, which can enlarge the grouting range and improve the grouting quality;

[0014] Preferably, the grouting port can extend the grouting pipe to above the sea level according to the engineering needs;

[0015] Preferably, the anti-scour non-woven fabric is passed through a round hoop and fixed on the grouting pipe, and each grouting pipe can be fixed with multiple round hoops;

[0016] Preferably, the aquaculture cage system comprises an outer frame and a net, wherein the frame is annularly erected above the anti-scour non-woven fabric, and the net is arranged inside the outer frame, and the inside of the annular cage formed is communicated;

[0017] Preferably, the grouting system is characterized in that a total of 12 switchable grouting valves are provided at the bottom of the airtight transparent pressure-resistant barrel of the grouting system, and are specifically arranged symmetrically with the partition as the center;

[0018] Preferably, the grouting system is characterized in that the partition in the sealable transparent pressure-resistant barrel of the grouting system is located inside the sealable transparent pressure-resistant barrel, and the slurry delivery valves are evenly located on both sides of the partition.

[0019] An offshore wind power foundation anti-scour and aquaculture cage integrated device and method, comprising the following steps;

[0020] Step (1) Before assembling the integrated system of anti-scour and aquaculture cages, measure the diameter of the piles and then determine the inner diameter D of the circular cage. Specifically, the outer surface diameter of the pile foundation should be measured, and 2 cm should be added to this value as the inner diameter D of the circular cage;

[0021] Step (2) After the piling is completed, the mother ship is driven to the vicinity of the pile foundation, and the offshore wind power foundation anti-scour and aquaculture cage integrated system is hoisted above the pile foundation, so that the inner side of the cylindrical cage is aligned with the outer surface of the pile foundation so that it can be inserted into the pile foundation;

[0022] Step (3) After the offshore wind power foundation anti-scour and aquaculture cage integrated device is inserted into the pile foundation, the device is released, allowed to sink freely, and left to stand for half an hour to allow it to sink to the seabed;

[0023] Step (4) After the installation of the offshore wind power foundation anti-scour and aquaculture cage integrated system is completed, the grouting system on the mother ship is connected, and the air compressor is connected to the transparent pressure-resistant barrel through a high-pressure slurry delivery pipe. Specifically, six slurry delivery pipes are respectively connected to two slurry delivery valves on the outside of the transparent pressure-resistant barrel that are symmetrical with the partition as the center;

[0024] Step (5) After the connection is completed, the grouting system is pre-tested to check the pressure gauge reading to prevent the transparent pressure-resistant barrel from leaking, ensure that the grouting system can operate correctly, and observe the connection status at the node to prevent slurry leakage at the connection node;

[0025] Step (6) After the grouting system is successfully debugged, divers dive underwater to connect the grouting pipes to the grouting ports of the offshore wind power foundation anti-scour and aquaculture cage integrated system;

[0026] Step (7) After the connection is completed, the pre-grouting test is performed again, and the process of step 5 is repeated. If the test result is normal, the installation of the offshore wind power foundation anti-scour and aquaculture cage integrated device is completed;

[0027] Step (8) After the debugging is completed, pour the slurry into a transparent pressure-resistant barrel for stirring. After the stirring is completed, check the stirring uniformity of the materials in the barrel, start the air compressor, open the slurry delivery valve, and perform grouting;

[0028] Step (9) After the grouting is completed, wait for a certain period of time until the slurry is fully diffused, turn off the air compressor, close the slurry delivery valve, and have the diver recover the slurry delivery pipe.

[0029] The present invention adopts the above technical solution, which has the following beneficial effects:

[0030] (1) The present invention provides an integrated device for preventing scour of offshore wind power foundations and for comprehensive acquisition of fishery resources. While reinforcing and protecting the sediment around the offshore wind power foundation, the aquaculture cages above the device can also provide a deep-sea fish farming (fishing) equipment, thereby improving the economic and ecological benefits of the single pile foundation at sea.

[0031] (2) The device adopts prefabricated components, which is easy to build and install at sea. It only needs to assemble the device in advance, and then directly lift it up and install it on the pile foundation through the crane on the mother ship. It falls vertically under the action of gravity and can be used in various sea conditions.

[0032] (3) The present invention provides a novel grouting method for offshore wind turbine foundations, which connects the grouting system on the mother ship to the grouting pipe installed in the anti-scouring and aquaculture integrated system of the pile foundation, and performs grouting consolidation improvement on the pile foundation neighborhood, thereby improving the properties of the surrounding sediment, reducing the occurrence of scouring, avoiding the impact of scouring on the operation of offshore wind turbines, and greatly increasing the service life;

[0033] (4) In the integrated device and method for anti-scour and aquaculture cages for offshore wind power foundations proposed by the present invention, in the integrated device for anti-scour and aquaculture cages, the square and circular grouting holes at the bottom of the grouting pipe can greatly increase the grouting range and improve the grouting quality. The bottom tripod support can avoid blockage caused by the grouting pipe being plugged into the soil. The structural external protective clothing formed by the anti-scour non-woven fabric can not only weaken the water flow, but also protect the mud and sand around the foundation, which can reduce the scour of the mud and sand after grouting, improve the durability of the grouting material, greatly reduce the movement of mud and sand, and avoid the formation of scour pits.

[0034] (5) In the integrated device and method for anti-scour and aquaculture cages for offshore wind power foundations proposed by the present invention, the cages carried in the integrated system for anti-scour and aquaculture cages have a simple structure and can be adjusted in size according to sea conditions, suitable for various actual working conditions. The anti-scour non-woven fabric can provide a living environment for algae and food for fish in the cages; and the scouring of water flow can form an oxygen-rich environment around the pile foundation, which can attract marine life and increase the biodiversity of the environment around the piles, thereby avoiding damage to the ecological environment caused by the placement of the device; the combination of the two can not only be used for fish trapping, but also for fishery aquaculture, reducing aquaculture costs;

[0035] (6) In the integrated device and method for anti-scour and aquaculture cages for offshore wind power foundations proposed in the present invention, the cages carried in the anti-scour and aquaculture cage integrated system can be used for fishery farming and fish trapping at the same time, and can also weaken the downwelling in front of the piles, reduce horseshoe vortices and wake vortices, thereby reducing the occurrence of scour phenomena, and can effectively combine offshore and deep-sea aquaculture technology with anti-scour technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 (a) is an overall effect diagram of the offshore wind power foundation anti-scour and aquaculture cage integrated system before grouting;

[0037] Figure 1 (b) is an overall effect diagram of the offshore wind power foundation anti-scour and aquaculture cage integrated system after grouting;

[0038] Figure 2 It is the structural diagram of the grouting system;

[0039] Figure 3(a) is a structural diagram of an integrated system of offshore wind power foundation anti-scour and aquaculture cages;

[0040] Figure 3 (b) is a top view of an integrated system of offshore wind power foundation anti-scour and aquaculture cages;

[0041] Figure 4 (a) is a circular cage structure diagram of an integrated system of offshore wind power foundation anti-scour and aquaculture cages;

[0042] Figure 4 (b) is a top view of a circular cage of an integrated system of offshore wind power foundation anti-scour and aquaculture cages;

[0043] Figure 5 It is a partial cage and anti-scour non-woven fabric structure diagram of an integrated system of offshore wind power foundation anti-scour and aquaculture cage;

[0044] Figure 6 This is a partial view of the grouting pipe of an integrated system of offshore wind power foundation anti-scour and aquaculture cages;

[0045] Figure 7 This is an instruction diagram for the use of an integrated device for offshore wind power foundation anti-scour and aquaculture cages.

[0046] In the figure: 101, air compressor; 102, transparent pressure-resistant barrel; 103, pressure gauge; 104, high-pressure slurry delivery pipe; 105, slurry delivery valve; 106, removable partition; 107, mother ship; 1, grouting pipe; 11, upper straight pipe of grouting pipe; 12, lower curved pipe of grouting pipe; 13, slurry delivery port; 14, circular grouting port; 15, square grouting port; 2, cylindrical cage; 3, breeding cage; 31, cage frame; 32, net; 4, anti-scour non-woven fabric; 5, lead block; 6, foundation; 7, triangular support; 8, seabed surface; 9, round hoop; 10, scour pit. DETAILED DESCRIPTION

[0047] The present invention is described below in conjunction with the accompanying drawings and specific embodiments.

[0048] Figure 1 An integrated system of offshore wind power foundation anti-scour and aquaculture cage is presented, including a grouting pipe 1; a straight pipe 11 at the upper part of the grouting pipe; a curved pipe 12 at the lower part of the grouting pipe; a grouting port 13; a circular grouting port 14; a square grouting port 15; a circular cage 2; aquaculture cage 3; a cage frame 31; a net 32; an anti-scour non-woven fabric 4; a lead block 5; a foundation 6; a triangular support 7; a seabed surface 8; a round hoop 9; and a scour pit 10.

[0049] Figure 2A grouting system is shown, including an air compressor 101; a transparent pressure-resistant barrel 102; a pressure gauge 103; a high-pressure slurry delivery pipe 104; a slurry delivery valve 105; a detachable partition 106; and a mother ship 107. The air compressor 101 is connected to the transparent pressure-resistant barrel 102 through the high-pressure slurry delivery pipe 104. The pressure gauge 103 is placed in the transparent pressure-resistant barrel 102 to detect the internal pressure of the transparent pressure-resistant barrel 102. A detachable partition 106 is provided inside the transparent pressure-resistant barrel 102. The slurry delivery valves 105 are evenly distributed on both sides of the partition. Different slurries can be placed on both sides by installing the partition. There are 12 slurry delivery valves 105 at the bottom of the transparent pressure-resistant barrel, which are symmetrically distributed on both sides with the partition as the center. When one slurry is used, 6 slurry delivery valves can be selected to be connected to the integrated device through the slurry delivery pipe. When two slurries are used for grouting, a pair of slurry delivery valves opposite to each other with the partition as the center are selected to be connected to the integrated device through a Y-shaped slurry delivery pipe.

[0050] Specifically, Figure 3 As shown, the grouting pipe 11 is fixed by a circular hoop 9 and connected to the circular cage 2 by welding. The grouting pipe 1 extends from top to bottom. The top of the grouting pipe 1 is provided with a grouting port 13 and the bottom thereof is provided with a circular grouting port 14 and a square grouting port 15. A triangular support 7 is set up at the bottom of the grouting pipe, and a breeding cage 3 is set up at the upper part of the grouting pipe.

[0051] Specifically, Figure 4 As shown, the grouting pipe 1 is arranged in a circle at 60° intervals in the circular cage. The upper end of the grouting pipe is a grouting port 13, and the lower end is a grouting port 14, a circular grouting port 14 and a square grouting port 15. The anti-scour material is poured in from the upper grouting port 13, flows out from the lower grouting ports 14 and 15, and is poured on the seabed surface.

[0052] Specifically, Figure 4 As shown, the grouting pipe is selected as a pressure-resistant pipe, and there are multiple grouting pipes 1. The longitudinal length of the grouting pipe 1 is continuously extended from top to bottom. When the lower bend 12 of the grouting pipe is extended downward, the horizontal distance from the foundation 6 is continuously extended. The inner diameter of the circular cage is D, and the horizontal distance between the circular grouting port at the lower part of the grouting pipe and the outer surface of the cylindrical cage is 0.2~0.3 D;

[0053] Specifically, the anti-scour non-woven fabric 4 covers the lower bend 12 of the grouting pipe, and the lower bend 12 of the grouting pipe is used as a skeleton to form a protective clothing structure for protecting the pouring materials and mud around the foundation 6;

[0054] Specifically, Figure 5 As shown, the anti-scour non-woven fabric 4 is fixed to the lower curved pipe 12 of the grouting pipe by a round hoop 9, and a plurality of the fixing round hoops 9 can be used for fixing;

[0055] Specifically, Figure 5As shown, the lead block embedded in the edge of the anti-scour non-woven fabric 4 can play a fixing role after installation, and it is convenient to sink the device on the seabed during installation; the breeding cage 3 includes an outer frame 31 and a net 32, wherein the outer frame 31 is annularly erected above the round hoop 9 for fixing the anti-scour non-woven fabric, and the net 32 ​​is arranged in the outer frame 31, and the inside of the formed annular cage is communicated;

[0056] Specifically, Figure 5 As shown, the outer frame 31 is fixed above the hoop 9. If there are two or more hoop, the outermost and innermost hoops need to be selected. The net 32 ​​is surrounded by the outer frame. The height of the outer frame and the size of the net box can be adjusted as needed.

[0057] The water flow around the pile provides an oxygen-rich environment for fish survival, and the anti-scouring non-woven fabric 4 can be used to lure plankton or algae to inhabit, providing food for fish survival. Aquaculture or fish trapping can be carried out inside the aquaculture cage. At the same time, the aquaculture cage 3 is a flexible structure, an energy-consuming device, and can be used as a structure that disrupts the water flow, which can weaken the downwelling in front of the pile and reduce the horseshoe vortex and the wake vortex.

[0058] Specifically, Figure 6 As shown, the tripod support 7 connected to the lower part 12 of the grouting pipe can play a role in supporting the seabed surface 8, and at the same time can provide a certain grouting height for the grouting ports 14 and 15 to prevent blockage.

[0059] Specifically, an offshore wind power foundation anti-scour and aquaculture cage integrated device method includes:

[0060] Step (1) Before assembling the integrated system of anti-scour and aquaculture cages, measure the diameter of the piles and then determine the inner diameter D of the circular cage. Specifically, the outer surface diameter of the pile foundation should be measured, and 2 cm should be added to this value as the inner diameter D of the circular cage;

[0061] Step (2) After the piling is completed, the mother ship is driven to the vicinity of the pile foundation, and the offshore wind power foundation anti-scour and aquaculture cage integrated system is hoisted above the pile foundation, so that the inner side of the cylindrical cage is aligned with the outer surface of the pile foundation so that it can be inserted into the pile foundation;

[0062] Step (3) After the offshore wind power foundation anti-scour and aquaculture cage integrated device is inserted into the pile foundation, the device is released, allowed to sink freely, and left to stand for half an hour to allow it to sink to the seabed;

[0063] Step (4) After the installation of the offshore wind power foundation anti-scour and aquaculture cage integrated system is completed, the grouting system on the mother ship is connected, and the air compressor is connected to the transparent pressure-resistant barrel through a high-pressure slurry delivery pipe. Specifically, six slurry delivery pipes are respectively connected to two positions symmetrically on the outside of the transparent pressure-resistant barrel with the partition as the center;

[0064] Step (5) After the connection is completed, the grouting system is pre-tested to check the pressure gauge reading to prevent the transparent pressure-resistant barrel from leaking, ensure that the grouting system can operate correctly, and observe the connection status at the node to prevent slurry leakage at the connection node;

[0065] Step (6) After the grouting system is successfully debugged, divers dive underwater to connect the grouting pipes to the grouting ports of the offshore wind power foundation anti-scour and aquaculture cage integrated system;

[0066] Step (7) After the connection is completed, the pre-grouting test is performed again, and the process of step 5 is repeated. If the test result is normal, the installation of the offshore wind power foundation anti-scour and aquaculture cage integrated device is completed;

[0067] Step (8) After the debugging is completed, pour the slurry into a transparent pressure-resistant barrel for stirring. After the stirring is completed, check the stirring uniformity of the materials in the barrel, start the air compressor, open the slurry delivery valve, and perform grouting;

[0068] Step (9) After the grouting is completed, wait for a certain period of time until the slurry is fully diffused, turn off the air compressor, close the slurry delivery valve, and have the diver recover the slurry delivery pipe.

[0069] Specifically, the slurry is a quick-setting slurry, which reduces the amount of material consumed by being washed away;

[0070] The length of the grouting pipe in this device can be adjusted according to the sea conditions or construction capacity, so that the grouting port is above or below the sea level;

[0071] The height and size of the cages in this device can be adjusted according to sea conditions or aquaculture needs;

[0072] The device adopts an assembled design structure, and the sub-components can be assembled and combined according to actual conditions. It is easy to build and install, and provides a device that can meet the needs of foundation anti-scouring as well as offshore aquaculture and fishery trapping.

[0073] In the description of the present invention, it is necessary to understand that the terms "lower", "upper", "lateral", "longitudinal", "horizontal", "length", "height", "inside", "outside", "upper", "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0074] The above specific implementation manner cannot be used as a limitation on the protection scope of the present invention. For those skilled in the art, any substitution, improvement or change made to the implementation manner of the present invention falls within the protection scope of the present invention.

Claims

1. An integrated device for offshore wind power foundation anti-scour and aquaculture cage, characterized in that: Including grouting system and offshore wind power foundation anti-scour and aquaculture cage integrated system; The grouting system includes an air compressor, a sealable transparent pressure-resistant barrel, a pressure gauge, a slurry delivery valve and a high-pressure slurry delivery pipe; there are three air compressors in total, which can output an air pressure of 0 to 2.0 MPa; a partition is provided in the middle of the sealable transparent pressure-resistant barrel, which has good sealing performance and is used to pack the grouting slurry, and the partition can be removed; the pressure gauge is placed on the sealable transparent pressure-resistant barrel to monitor the air pressure in the sealable transparent pressure-resistant barrel, and a total of 12 switchable slurry delivery valves are provided under the transparent pressure-resistant barrel; the slurry delivery valves are symmetrically arranged with the partition as the center; the high-pressure slurry delivery pipe is a pressure-resistant hose, which is connected in series with the air compressor, the sealable transparent pressure-resistant barrel with a partition and the offshore wind power foundation anti-scour and aquaculture cage integrated system in sequence; The offshore wind power foundation anti-scour and aquaculture cage integrated system includes multiple grouting pipes, cylindrical cages, anti-scour non-woven fabrics, and annular aquaculture cages; there are six grouting pipes in total, and the grouting pipes are made of stainless steel. There are grouting ports on the top of the grouting pipe and grouting ports on the bottom of the grouting pipe. The grouting ports include a circular grouting port on the top of the grouting pipe, and the grouting ports include a circular grouting port at the bottom of the grouting pipe and a square grouting port. The anti-scour material is poured from the top grouting port and flows out from the lower grouting port to inject the anti-scour material into the seabed around the foundation to prevent the formation of scour pits around the foundation. The grouting pipe includes two parts, the upper part is a straight pipe, and the lower part is a curved pipe. The upper part of the grouting pipe is fixed to the cylindrical cage with a round hoop at an interval of 60°, and is welded to the cylindrical cage. The cages are connected to form a ring-shaped arrangement, and a triangular support is set up at the bottom of the grouting pipe to perform uniform grouting; the anti-scour non-woven fabric is tied and fixed to the grouting pipe with a round hoop, and each grouting pipe is fixed with multiple round hoops, forming a cover umbrella on the upper part of the grouting pipe to form a structure with the grouting pipe as the supporting skeleton, and a lead block is buried in the anti-scour non-woven fabric at the end of the edge so that it can be fixed to the seabed after installation; the aquaculture cage includes an outer frame and a net, the frame penetrates the anti-scour non-woven fabric, and is set up in a ring above the six grouting pipes, and the net is set in the outer frame, and the formed annular cage is connected inside, and the bottom of the annular aquaculture cage is connected as a whole by a tie rod, which is placed on the anti-scour non-woven fabric, and the bottom is fixed to multiple grouting pipes by anchor rods; The method for using the offshore wind power foundation anti-scour and aquaculture cage integrated device comprises the following steps: Step (1) Before assembling the offshore wind power foundation anti-scour and aquaculture cage integrated system, measure the diameter of the pile, and then determine the inner diameter D of the cylindrical cage. Specifically, the outer surface diameter of the pile foundation should be measured, and 2 cm should be added to this value as the inner diameter D of the cylindrical cage; Step (2) After the piling is completed, the mother ship is driven to the vicinity of the pile foundation, and the offshore wind power foundation anti-scour and aquaculture cage integrated system is hoisted above the pile foundation, so that the inner side of the cylindrical cage is aligned with the outer surface of the pile foundation so that it can be inserted into the pile foundation; Step (3) After the offshore wind power foundation anti-scour and aquaculture cage integrated system is inserted into the pile foundation and then released, the offshore wind power foundation anti-scour and aquaculture cage integrated system will sink freely under the action of gravity and wait for half an hour to allow it to sink to the seabed; Step (4) After the installation of the offshore wind power foundation anti-scour and aquaculture cage integrated system is completed, the grouting system on the mother ship is connected, and the air compressor is connected to the transparent pressure-resistant barrel through the high-pressure slurry delivery pipe. Specifically, six high-pressure slurry delivery pipes are connected to the two slurry delivery valves on the outside of the transparent pressure-resistant barrel that are symmetrical with the partition as the center; Step (5) After the connection is completed, the grouting system on the mother ship is pre-tested, the pressure gauge reading is checked to prevent the transparent pressure-resistant barrel from leaking, to ensure that the grouting system can operate correctly, and the connection status at the node is observed to prevent the slurry from leaking at the connection node; Step (6) After the grouting system is successfully debugged, divers dive underwater to connect the high-pressure slurry delivery pipes to the slurry delivery ports of the offshore wind power foundation anti-scour and aquaculture cage integrated system; Step (7) After the connection is completed, the pre-grouting test is performed again, and the process of step (5) is repeated. If the test result is normal, the installation of the offshore wind power foundation anti-scour and aquaculture cage integrated system is completed; Step (8) After the debugging is completed, the slurry is poured into a transparent pressure-resistant barrel for stirring. After the stirring is completed, the stirring uniformity of the material in the barrel is checked, the air compressor is started, the slurry delivery valve is opened, and grouting is performed; Step (9) After the grouting is completed, wait for a certain period of time until the slurry is fully diffused, turn off the air compressor, close the slurry delivery valve, and have the high-pressure slurry delivery pipe recovered by a diver.

2. The integrated device for offshore wind power foundation anti-scour and aquaculture cage according to claim 1 is characterized in that After the grouting pipe is fixed, it extends longitudinally from top to bottom, and the lower part of the grouting pipe extends longitudinally outward.

3. The integrated device for offshore wind power foundation anti-scour and aquaculture cage according to claim 1 is characterized in that: The inner diameter of the cylindrical cage is D, and the circular grouting port at the lower part of the grouting pipe is 0.2 to 0.3D away from the outer surface of the cylindrical cage in the horizontal direction.

4. The integrated device for offshore wind power foundation anti-scour and aquaculture cage according to claim 1 is characterized in that The inner diameter of the cylindrical cage is D, and the height of the triangular support is between 0.05 and 0.1D.

5. According to the integrated device for offshore wind power foundation anti-scour and aquaculture cage as described in claim 3, it is characterized in that: The straight length of the grouting pipe can be specified according to project requirements so that the grouting outlet is above or below sea level.

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