Anti-scour protection and automatic repair device for offshore wind power cylindrical foundation

Abstract

The invention discloses an anti-scour protection and automatic repair device for an offshore wind power barrel-shaped foundation, and relates to the technical field of offshore wind turbines, the anti-scour protection and automatic repair device comprises a protection mechanism and an automatic repair mechanism; the protection mechanism comprises a plurality of protection assemblies; the protection assembly comprises a protection plate and a pressure applying device; each protection plate can rotate around the corresponding first axis to be arranged on the outer barrel wall of the offshore wind power barrel-shaped foundation. The protection plate can be pressed on the seabed surface below the protection plate; the output end of the pressure applying device is used for applying downward pressing power to the protection plate; the automatic repairing mechanism comprises a controller, a posture monitor and a grouting device; the posture monitor is used for detecting the posture of each protection plate; the grouting device can discharge the filling filler; at least one filling outlet is formed in the lower end face of the protection plate in the horizontal state; the controller is in communication connection with the posture monitor, the grouting device and all the pressure exerting devices. The environment limitation can be reduced, and rapid, high-efficiency and low-cost protection and automatic repair can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind turbines, and in particular to an anti-scouring protection and automatic repair device for an offshore wind power cylindrical foundation. Background Technique

[0002] The offshore wind power cylindrical foundation is a cylindrical type with an open bottom and a sealed top. Compared with traditional pile foundations and pier foundations, it has better anti-overturning bearing performance, and the cylindrical foundation has many advantages such as convenient installation, short construction period, and recyclability.

[0003] Long-term wave and current actions will cause scouring pits to form on the seabed surface around the suction bucket foundation, which will weaken the lateral soil restraint effect of the foundation, resulting in a reduction in the foundation bearing capacity and threatening the safety of the wind turbine. Scouring pits located on the seabed usually require complex professional equipment for monitoring and repair, with high costs; moreover, restricted by weather and sea conditions, the maintenance efficiency is low. Summary of the Invention

[0004] The purpose of the present invention is to provide an anti-scouring protection and automatic repair device for an offshore wind power cylindrical foundation to solve the problems existing in the above-mentioned prior art, reduce environmental restrictions, and be able to achieve fast, high-efficiency and low-cost protection and automatic repair.

[0005] To achieve the above purpose, the present invention provides the following solution:

[0006] The present invention provides an anti-erosion protection and automatic repair device for a cylindrical foundation of an offshore wind turbine, including a protection mechanism and an automatic repair mechanism; the protection mechanism includes a plurality of protection components; each of the protection components is used to be circumferentially distributed around the axis of the outer cylindrical wall of the offshore wind turbine cylindrical foundation; the protection component includes a protection plate and a pressure applicator; each of the protection plates can be rotatably arranged on the outer cylindrical wall of the offshore wind turbine cylindrical foundation around its corresponding first axis, and the first axis is perpendicular to the axis of the offshore wind turbine cylindrical foundation; the protection plate can be pressed on the seabed surface below the protection plate; the output end of the pressure applicator is connected to the protection plate, and the output end of the pressure applicator is used to apply a downward pressing force to the protection plate in the rotation direction of the protection plate around the first axis, and the downward pressing force can make the protection plate rotate around the first axis towards the side close to the seabed surface; the automatic repair mechanism includes a controller, an attitude monitor and a grouting device; the attitude monitor is used to detect the attitude of each of the protection plates; the grouting device has a total output port, and the total output port can discharge the perfusion filler; at least one perfusion outlet is opened on the lower end surface of the protection plate in a horizontal state, and each of the perfusion outlets can be communicated with the total output port; the controller is communicatively connected to the attitude monitor, the grouting device and each of the pressure applicators; when the attitude of the protection plate detected by the attitude monitor reaches the threshold attitude, the controller can drive the protection plate to a horizontal attitude through the corresponding pressure applicator, and the controller can control the grouting device to discharge the perfusion filler through each of the perfusion outlets on the protection plate.

[0007] Preferably, the protection mechanism includes an annular fixing plate, and the annular fixing plate is used to be fixedly sleeved on the outer side of the outer cylindrical wall of the offshore wind turbine cylindrical foundation; each of the protection components is arranged on the annular fixing plate around the axis of the outer cylindrical wall of the offshore wind turbine cylindrical foundation, and the protection plate is rotatably arranged on the annular fixing plate around the first axis; in the circumferential direction around the axis of the outer cylindrical wall of the offshore wind turbine cylindrical foundation, side baffles are respectively fixedly arranged on both sides of the protection plate; in the axial direction of the annular fixing plate, the end of the side baffle away from the axis of the annular fixing plate is lower than the end of the protection plate away from the axis of the annular fixing plate; the perfusion filler discharged from each of the perfusion outlets can overflow on the side of the protection plate away from the axis of the annular fixing plate and solidify to form an auxiliary perfusion anti-erosion body.

[0008] Preferably, an inner pressure sensor and an outer pressure sensor are further fixedly arranged on the lower end surface of the protection plate in a horizontal state; the inner pressure sensor is located on the side of the outer pressure sensor close to the axis of the outer cylindrical wall of the offshore wind turbine cylindrical foundation; both the inner pressure sensor and the outer pressure sensor are communicatively connected to the controller.

[0009] Preferably, the grouting device includes a mixed water storage cylinder, a mixing and stirring cylinder, and a plurality of raw material storage cylinders; the mixed water storage cylinder stores mixed water, and each of the raw material storage cylinders is used to store various raw materials for preparing the perfusion filler; the mixing and stirring cylinder has a mixing chamber; the outlet of the mixed water storage cylinder is communicated with the inlet of the first pump body; the outlets of each of the raw material storage cylinders are respectively communicated with the inlets of corresponding second pump bodies; a stirrer is arranged in the mixing and stirring cylinder; the outlets of the first pump body and each of the second pump bodies are both communicated with the inlet of the mixing and stirring cylinder; the outlet of the mixing and stirring cylinder is communicated with the inlet of the third pump body, and the outlet of the third pump body forms the total output port; and a slurry delivery main pipe is connected to the outlet of the third pump body, the end of the slurry delivery main pipe is connected with a plurality of slurry delivery branch pipes, a slurry delivery distribution pipe is fixed on the protection plate, and the slurry delivery distribution pipe is communicated with each of the perfusion outlets on the protection plate; the slurry delivery branch pipes correspond to the protection plates one by one, and the outlets of the slurry delivery branch pipes are communicated with the inlets of the corresponding slurry delivery distribution pipes through flexible pipes; the controller is communicatively connected with the stirrer, the first pump body, the third pump body, and each of the second pump bodies.

[0010] Preferably, the mixed water storage cylinder, the mixing and stirring cylinder, and each of the raw material storage cylinders are all fixedly arranged on the column of the offshore wind power cylindrical foundation located in seawater; a supplementary addition pipe is arranged on each of the mixed water storage cylinder and the raw material storage cylinders, and the upper openings of each of the supplementary addition pipes are all located above the sea surface; and a ventilation pipe is arranged on the mixing and stirring cylinder, and the upper opening of the ventilation pipe is located above the sea surface.

[0011] Preferably, the attitude monitor includes a plurality of angle monitoring sensors, the angle monitoring sensors correspond to the protection plates one by one, and each of the angle monitoring sensors is used to monitor the included angle between the corresponding protection plate and the horizontal plane; each of the angle monitoring sensors is communicatively connected with the controller.

[0012] Preferably, the outlet of the slurry delivery main pipe is connected with an annular supply pipe, and each of the slurry delivery branch pipes is connected to the annular supply pipe.

[0013] Preferably, the protection plate is connected with the annular fixing plate through a rotating connecting piece; the rotating connecting piece includes a first connecting piece and a second connecting piece; the first connecting piece is used to be fixedly arranged on the outer end of the annular fixing plate far away from the axis of the outer cylinder wall of the offshore wind power cylindrical foundation, the second connecting piece is fixedly arranged on the protection plate, and the second connecting piece is rotatably arranged on the first connecting piece around the first axis.

[0014] Preferably, when the protection plate is in a horizontal posture, in the axial direction of the outer cylindrical wall of the offshore wind turbine tubular foundation, one end of the side baffle away from the axis of the annular fixing plate is the first end, and one end of the side baffle close to the axis of the annular fixing plate is the second end. The distance between the first end and the lower end surface of the protection plate is greater than the distance between the second end and the lower end surface of the protection plate.

[0015] Preferably, at least one through slurry overflow hole is formed in one end of the side baffle close to the protection plate, and the slurry overflow hole communicates with the space between the two side baffles on the protection plate.

[0016] The present invention has achieved the following technical effects compared with the prior art:

[0017] The anti-erosion protection and automatic repair device for the offshore wind power cylindrical foundation provided by the present invention can monitor and automatically repair the scour pits around the offshore wind power cylindrical foundation by adopting a protection mechanism for preventing erosion and cooperating with an automatic repair mechanism; when a scour pit is formed under the protection plate, due to the downward pressure force applied by the pressure applicator to the protection plate, the protection plate can rotate towards the side close to the seabed surface by itself and closely adhere to the seabed, so as to prevent the scour pit from expanding towards the inner side of the outer cylinder wall of the offshore wind power cylindrical foundation, and can reduce the problem that the weakening of the lateral soil restraint effect of the foundation is caused by an overly large scour pit; moreover, the attitude monitor provided can monitor the attitude of the protection plate to substitute and monitor the size of the scour pit under the protection plate through the current attitude of the protection plate; due to the fact that the protection plate has a certain length, a wider range of monitoring effects can be achieved for the scour pits within a certain area range under it; the controller can monitor the size of the scour pit according to the attitude monitoring of the protection plate, and when it reaches the set monitoring threshold, the controller can control the grouting device, etc., first adjust the protection plate to a horizontal state, and the filling material provided by the grouting device falls through the perfusion outlet on the protection plate into the scour pit under the protection plate to achieve its automatic repair, reducing the weakening of the lateral soil restraint effect of the foundation caused by an overly large scour pit; the downward pressure force provided by the pressure applicator tightly presses the protection plate on the seabed surface, and the protection plate can rotate around the first axis perpendicular to the axis of the wind power cylindrical foundation, and can adjust the angle by itself according to different terrain conditions such as the undulation and slope of the seabed surface, always fitting well with the seabed surface, effectively covering the protection area, and the monitoring and repair processes can be automatically maintained without being restricted by weather and sea conditions; multiple protection components are circumferentially distributed around the outer cylinder wall of the offshore wind power cylindrical foundation, and each protection plate can independently adjust its attitude and perform perfusion repair. When a scour pit appears locally, only the protection plate in the corresponding area needs to be operated, and there is no need to perform large-scale treatment around the entire foundation, greatly improving the efficiency of protection and repair; the attitude monitor monitors the attitude of the protection plate in real time. Once the threshold attitude is reached, it can quickly transmit the information to the controller. After receiving the signal, the controller immediately drives the protection plate to a horizontal attitude through the pressure applicator and simultaneously starts the grouting device for perfusion repair. The whole process responds quickly and can take measures in time at the initial stage of seabed erosion to prevent the erosion from deteriorating further; the components of the protection mechanism and the automatic repair mechanism are relatively few, and the structure is simple, reducing the manufacturing and installation costs. At the same time, this simple structure reduces the probability of failures, reduces the maintenance cost and downtime, and improves the economy of the device; the automatic monitoring, automatic adjustment and automatic repair functions of the device reduce the workload of manual inspection and maintenance, reduce the labor cost, and can timely detect and handle the seabed erosion problem, avoiding serious consequences such as foundation damage caused by erosion, thus saving the potentially high costs of large-scale repair or replacement of the foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the overall structure of the anti-erosion protection and automatic repair device for the offshore wind power cylindrical foundation provided by the present invention;

[0020] Figure 2 For Figure 1 Partial enlarged view of A in

[0021] Figure 3 Top view of the anti-erosion protection and automatic repair device for the offshore wind power cylindrical foundation provided by the present invention;

[0022] Figure 4 Schematic diagram of the structure of the protection plate and the side baffle in the anti-erosion protection and automatic repair device for the offshore wind power cylindrical foundation provided by the present invention.

[0023] In the figure:

[0024] 10 - Outer cylinder wall; 11 - Column; 12 - Diagonal brace;

[0025] 20 - Ring-shaped fixing plate; 21 - Pressing device; 211 - Boom; 212 - Motor; 22 - Rotating connecting piece; 221 - First connecting piece; 222 - Second connecting piece;

[0026] 30 - Protection plate; 31 - Side baffle; 311 - Slurry overflow hole; 32 - Grouting outlet; 33 - Inner pressure sensor; 34 - Outer pressure sensor; 35 - Slurry delivery distribution pipe; 36 - Attitude monitor;

[0027] 40 - Grouting device; 41 - Main slurry delivery pipe; 42 - Ring-shaped supply pipe; 43 - Slurry delivery branch pipe; 44 - Flexible pipe. Detailed implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] The object of the present invention is to provide an anti-erosion protection and automatic repair device for an offshore wind power cylindrical foundation, so as to solve the problems existing in the prior art, reduce environmental restrictions, and achieve rapid, high-efficiency and low-cost protection and automatic repair.

[0030] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Embodiment 1

[0032] This embodiment provides an anti-erosion protection and automatic repair device for an offshore wind power cylindrical foundation, as Figures 1 to 4 shown, including a protection mechanism and an automatic repair mechanism; the protection mechanism includes a plurality of protection components; each protection component is used for circumferentially distributing around the axis of the outer cylinder wall 10 of the offshore wind power cylindrical foundation; the protection component includes a protection plate 30 and a pressure applicator 21; each protection plate 30 can be rotatably arranged on the outer cylinder wall 10 of the offshore wind power cylindrical foundation around its corresponding first axis, and the first axis is perpendicular to the axis of the offshore wind power cylindrical foundation; the protection plate 30 can be pressed on the seabed surface below the protection plate 30; the output end of the pressure applicator 21 is connected to the protection plate 30, and the output end of the pressure applicator 21 is used to apply a downward pressing force to the protection plate 30 in the rotation direction of the protection plate 30 around the first axis (the pressure applicator 21 can include a boom 211 and a motor 212, the motor 212 controls the rotation action of the boom 211 around an axis, the boom 211 is connected to the protection plate 30 through a linkage rod, and the ends of the linkage rod are hinged to both the protection plate 30 and the boom 211; the linkage rod can be a telescopic rod), and the downward pressing force can make the protection plate 30 rotate around the first axis towards the side close to the seabed surface; the automatic repair mechanism includes a controller, an attitude monitor 36 and a grouting device 40; the attitude monitor 36 is used to detect the attitude of each protection plate 30; the grouting device 40 has a total output port, and the total output port can discharge the filling material; at least one grouting outlet 32 is opened on the lower end surface of the protection plate 30 in the horizontal state, and each grouting outlet 32 can be communicated with the total output port; the controller is communicatively connected to the attitude monitor 36, the grouting device 40 and each pressure applicator 21; when the attitude of the protection plate 30 detected by the attitude monitor 36 reaches the threshold attitude, the controller can drive the protection plate 30 to the horizontal attitude through the corresponding pressure applicator 21, and the controller can control the grouting device 40 to discharge the filling material through each grouting outlet 32 on the protection plate 30.

[0033] By adopting a protection mechanism for protecting against scouring and cooperating with an automatic repair mechanism, the monitoring and automatic repair of the scour pit around the cylindrical foundation of the offshore wind turbine can be realized; when the scour pit is formed below the protection plate 30, due to the downward pressure force from the pressure applicator 21 on the protection plate 30, it can rotate towards the side close to the seabed surface by itself and closely adhere to the seabed, so as to prevent the scour pit from expanding towards the inside of the outer cylinder wall 10 of the offshore wind turbine cylindrical foundation, and the problem that the lateral soil constraint effect of the foundation is weakened due to an overly large scour pit can be reduced; and the attitude monitor 36 provided can monitor the attitude of the protection plate 30 to substitute and monitor the size of the scour pit below the protection plate 30 through the current attitude of the protection plate 30; due to the certain length of the protection plate 30, a wider range of monitoring effects on the scour pits within a certain area below it can be achieved; the controller can realize the monitoring of the size of the scour pit according to the attitude monitoring of the protection plate 30, and when it reaches the set monitoring threshold, the controller can control the grouting device 40, etc., first adjust the protection plate 30 to a horizontal state, and the filling material provided by the grouting device 40 falls into the scour pit below the protection plate 30 through the perfusion outlet 32 on the protection plate 30 to realize its automatic repair and reduce the problem that the lateral soil constraint effect of the foundation is weakened due to an overly large scour pit; the downward pressure force provided by the pressure applicator 21 presses the protection plate 30 tightly on the seabed surface, and the protection plate 30 can rotate around the first axis perpendicular to the axis of the wind turbine cylindrical foundation, and can adjust the angle by its own rotation according to different terrain conditions such as the undulation and slope of the seabed surface, always fit well with the seabed surface, effectively cover the protection area, and the monitoring and repair process can be automatically maintained without being restricted by weather and sea conditions; multiple protection components are circumferentially distributed around the outer cylinder wall 10 of the offshore wind turbine cylindrical foundation, and each protection plate 30 can independently perform attitude adjustment and perfusion repair. When a scour pit appears locally, only the protection plate 30 in the corresponding area needs to be operated, and there is no need to perform large-scale treatment around the entire foundation, which greatly improves the efficiency of protection and repair; the attitude monitor 36 monitors the attitude of the protection plate 30 in real time. Once the threshold attitude is reached, it can quickly transmit the information to the controller. After receiving the signal, the controller immediately drives the protection plate 30 to the horizontal attitude through the pressure applicator 21 and simultaneously starts the grouting device 40 for perfusion repair. The whole process responds quickly and can take measures in time at the initial stage of seabed scouring to prevent the scouring from deteriorating further; the components of the protection mechanism and the automatic repair mechanism are relatively few, the structure is simple, the manufacturing and installation costs are reduced. At the same time, this simple structure reduces the probability of failure, reduces the maintenance cost and downtime, and improves the economy of the device; the automatic monitoring, automatic adjustment and automatic repair functions of the device reduce the workload of manual inspection and maintenance, reduce the labor cost, and can timely detect and handle the seabed scouring problem, avoiding serious consequences such as foundation damage caused by scouring, thus saving the high costs of potential large-scale repair or replacement of the foundation.

[0034] Among them, the relevant settings of the protection mechanism are described as follows:

[0035] Specifically, four perfusion outlets 32 can be provided on a protection plate 30.

[0036] In an alternative solution of this embodiment, preferably, as Figure 1 and Figure 3 shown, the protection mechanism includes an annular fixing plate 20, and the annular fixing plate 20 is used to be fixedly sleeved on the outer side of the outer cylinder wall 10 of the offshore wind power cylindrical foundation; each protection component is arranged on the annular fixing plate 20 around the axis of the outer cylinder wall 10 of the offshore wind power cylindrical foundation, and the protection plate 30 is rotatably arranged on the annular fixing plate 20 around the first axis; in the circumferential direction around the axis of the outer cylinder wall 10 of the offshore wind power cylindrical foundation, side baffles 31 are respectively fixedly arranged on both sides of the protection plate 30; in the axial direction of the annular fixing plate 20, one end of the side baffle 31 far from the axis of the annular fixing plate 20 is lower than one end of the protection plate 30 far from the axis of the annular fixing plate 20; the perfusion filler discharged from each perfusion outlet 32 can overflow on the side of the protection plate 30 far from the axis of the annular fixing plate 20 and solidify to form an auxiliary perfusion anti-erosion body. The side baffle 31 can be used to control the area that needs to be grouted and block the flowing of the fluidized solidified soil to other areas; when the automatic repair mechanism performs grouting filling, the side baffle 31 can prevent the perfusion filler from flowing out from the side of the protection plate 30, so that the filler can be more concentratedly filled in the area that needs to be repaired under the protection plate 30, improving the repair effect and ensuring that the structural strength of the seabed is effectively restored; the annular fixing plate 20 connects multiple protection components into a whole, enabling the protection mechanism to be more evenly distributed on the outer side of the outer cylinder wall 10 of the offshore wind power cylindrical foundation, dispersing external forces such as the pressure from seawater to the entire annular structure, avoiding excessive local stress, enhancing the stability of the connection between the entire protection device and the cylindrical foundation, and improving the reliability and service life of the protection device; and one end of the side baffle 31 far from the axis of the annular fixing plate 20 is lower than one end of the protection plate 30 far from the axis of the annular fixing plate 20. When the protection plate 30 is in a horizontal state and automatic repair is carried out, the perfusion filler can overflow from the opening formed by the protection plate 30 and the outer ends of the two side baffles 31 after filling the erosion pit under the protection plate 30, and form an excess perfusion filler outside the opening formed by it, that is, form an auxiliary perfusion anti-erosion body on the side of the filled erosion pit far from the axis of the outer cylinder wall 10 of the offshore wind power cylindrical foundation. Since the position where the erosion pit is generated means that the erosion at this position is stronger than other areas, the auxiliary perfusion anti-erosion body formed by this setting can form a stronger anti-erosion effect after the repair is completed.

[0037] Specifically, the protection plate 30 can be formed by intercepting a part on an annular plate.

[0038] In an alternative solution of this embodiment, preferably, as Figure 1 and Figure 2 shown, the protection plate 30 is connected to the annular fixing plate 20 through a rotating connecting member 22; the rotating connecting member 22 includes a first connecting member 221 and a second connecting member 222; the first connecting member 221 is fixedly arranged at the outer end of the outer cylindrical wall 10 of the annular fixing plate 20 away from the axis of the offshore wind power cylindrical foundation, the second connecting member 222 is fixedly arranged on the protection plate 30, and the second connecting member 222 is rotatably arranged on the first connecting member 221 around a first axis. The design of the rotating connecting member 22 provides a reliable connection between the protection plate 30 and the annular fixing plate 20. The fixed arrangement methods of the first connecting member 221 and the second connecting member 222 can ensure that during the rotation of the protection plate 30, the connection between the two will not be easily loosened or detached; this modular design of the rotating connecting member 22 makes the installation process of the protection plate 30 and the annular fixing plate 20 more convenient. During installation, only need to fix the first connecting member 221 on the annular fixing plate 20, fix the second connecting member 222 on the protection plate 30, and then rotatably connect the second connecting member 222 with the first connecting member 221. When maintaining the device or replacing the protection plate 30, the rotating connecting member 22 can also be conveniently disassembled for corresponding repair or replacement operations, reducing the maintenance cost and difficulty.

[0039] In an alternative solution of this embodiment, preferably, as Figures 1 to 4 shown, when the protection plate 30 is in a horizontal posture, in the axial direction of the outer cylindrical wall 10 of the offshore wind power cylindrical foundation, one end of the side baffle 31 away from the axis of the annular fixing plate 20 is the first end, and one end of the side baffle 31 close to the axis of the annular fixing plate 20 is the second end. The distance between the first end and the lower end surface of the protection plate 30 is greater than the distance between the second end and the lower end surface of the protection plate 30. During the automatic repair process, when the grouting device 40 discharges the grouting filler through the filling outlet 32 on the protection plate 30, the inclined structure of the side baffle 31 can guide the filler to flow to the area that needs to be repaired; and because the distance between the second end and the lower end surface of the protection plate 30 is small, that is, the length of the side baffle 31 at this position is short. When the protection plate 30 is in a horizontal state, more solidified bodies are formed on the side close to the outer cylindrical wall 10 of the offshore wind power cylindrical foundation by the grouting filler, effectively enhancing the stability of its foundation.

[0040] In an alternative solution of this embodiment, preferably, as Figure 4As shown, at one end of the side baffle 31 close to the protection plate 30, at least one through slurry overflow hole 311 is provided, and the slurry overflow hole 311 communicates with the space between the two side baffles 31 on the protection plate 30. The setting of the slurry overflow hole 311 enables the remaining slurry in the pipeline to be discharged outside the repair area through the slurry overflow hole 311 after the repair is completed. When a certain amount of filling material is poured, the excess slurry will overflow through the slurry overflow hole 311, avoiding excessive grouting in a certain area under the protection plate 30, resulting in slurry waste or uneven seabed surface, and ensuring the accuracy and efficiency of the repair process; the poured filling material discharged from the slurry overflow hole 311 forms a certain accumulation and solidification at the connection part between the side baffle 31 and the protection plate 30, which is equivalent to adding additional reinforcement materials at the connection between the circumference and the adjacent two sides, making it not easy to loosen or fall off when bearing external forces such as sea waves and ocean currents for a long time, and ensuring the integrity of the protection structure.

[0041] Among them, the relevant settings of the automatic repair mechanism are described as follows:

[0042] Specifically, the poured filling material is selected as poured fluidized solidified soil.

[0043] In an alternative solution of this embodiment, preferably, as Figures 1 to 4 shown, the lower end surface of the protection plate 30 in a horizontal state is also fixedly provided with an inner pressure sensor 33 and an outer pressure sensor 34; the inner pressure sensor 33 is located on the side of the outer pressure sensor 34 close to the axis of the outer cylinder wall 10 of the offshore wind power cylindrical foundation; both the inner pressure sensor 33 and the outer pressure sensor 34 are communicatively connected to the controller. The control of the repair grouting is realized through the inner pressure sensor 33 and the outer pressure sensor 34, and the control is more accurate.

[0044] Specifically, both the inner pressure sensor 33 and the outer pressure sensor 34 adopt earth pressure gauges.

[0045] Specifically, when repairing the scour pit, 10 seconds after the surrounding earth pressures corresponding to the inner pressure sensor 33 and the outer pressure sensor 34 are both non-zero, the grouting device 40 stops discharging slurry.

[0046] In an alternative solution of this embodiment, preferably, the attitude monitor 36 includes a plurality of angle monitoring sensors. The angle monitoring sensors correspond to the protection plates 30 one by one, and each angle monitoring sensor is used to monitor the included angle between the corresponding protection plate 30 and the horizontal plane; each angle monitoring sensor is communicatively connected to the controller. The plurality of angle monitoring sensors respectively correspond to the respective protection plates 30, and can comprehensively monitor the state of the entire protection device. When the angle of a certain protection plate 30 changes, the controller can comprehensively judge and control the corresponding rotating connection member 22 according to the angle information of the other protection plates 30 and the overall protection requirements to adjust the protection plate 30; the angle monitoring sensor can monitor the included angle between the protection plate 30 and the horizontal plane in real time and accurately obtain the attitude information of the protection plate 30.

[0047] Specifically, the angle monitoring sensor is a prior art, and its setting method is the same as the existing setting method for realizing the included angle between the upper plane or the lower plane of the protection plate 30 and the horizontal plane, and will not be elaborated here.

[0048] In an alternative solution of this embodiment, preferably, as Figure 1 and Figure 3 shown, the outlet of the slurry conveying main pipe 41 is connected with an annular supply pipe 42, and each slurry conveying branch pipe 43 is connected to the annular supply pipe 42. The slurry conveying branch pipe 43 is connected to the annular supply pipe 42, and the position and quantity of the slurry conveying branch pipe 43 can be flexibly arranged according to the specific shape and size of the protection area. For the circular structure of the offshore wind power cylindrical foundation, the annular supply pipe 42 can conveniently transport the repair material to the seabed around the foundation from multiple directions, improving the adaptability and coverage of the device.

[0049] Among them, the relevant settings of the grouting device 40 are described as follows:

[0050] Specifically, the grouting device 40 can select any existing structure that can realize its function, including but not limited to the following solutions.

[0051] In an alternative solution of this embodiment, preferably, the grouting device 40 includes a mixed water storage cylinder, a mixing and stirring cylinder, and a plurality of raw material storage cylinders; the mixed water storage cylinder stores mixed water, and each raw material storage cylinder is used to store various raw materials for preparing the grouting filler; the mixing and stirring cylinder has a mixing chamber; the outlet of the mixed water storage cylinder is communicated with the inlet of the first pump body; the outlets of each raw material storage cylinder are respectively communicated with the inlets of corresponding second pump bodies; a stirrer is arranged in the mixing and stirring cylinder; the outlets of the first pump body and each second pump body are both communicated with the inlet of the mixing and stirring cylinder; the outlet of the mixing and stirring cylinder is communicated with the inlet of the third pump body, and the outlet of the third pump body forms the total outlet; and a slurry delivery main pipe 41 is connected to the outlet of the third pump body, the end of the slurry delivery main pipe 41 is connected with a plurality of slurry delivery branch pipes 43, a slurry delivery distribution pipe 35 is fixed on the protective plate 30, and the slurry delivery distribution pipe 35 is communicated with each grouting outlet 32 on the protective plate 30; the slurry delivery branch pipes 43 correspond to the protective plates 30 one by one, and the outlet of the slurry delivery branch pipe 43 is communicated with the inlet of the corresponding slurry delivery distribution pipe 35 through a flexible pipe 44 (such as a flexible corrugated pipe); the controller is communicatively connected to the stirrer, the first pump body, the third pump body, and each second pump body. The plurality of raw material storage cylinders respectively store various raw materials for preparing the grouting filler. By communicatively connecting the controller with each second pump body, the delivery volume of each raw material can be accurately controlled, so as to accurately blend the components of the grouting filler, ensuring the stability and consistency of its performance; the mixed water storage cylinder stores mixed water and is connected to the mixing and stirring cylinder through the first pump body, and the accurate control of the consumption of the mixed water can also be realized, ensuring that parameters such as the water-cement ratio of the grouting filler meet the design requirements, thereby improving its strength and anti-scouring ability; the outlet of the mixing and stirring cylinder is connected to the slurry delivery main pipe 41 through the third pump body, and then the slurry delivery main pipe 41 is connected to a plurality of slurry delivery branch pipes 43. This structure can efficiently transport the prepared grouting filler to the corresponding positions of each protective plate 30; the setting of the flexible pipe 44 increases the flexibility of the slurry delivery system; the controller is communicatively connected to the stirrer, the first pump body, the third pump body, and each second pump body, realizing the automatic control of the entire grouting process. Through preset programs and parameters, the controller can accurately control the operation of each component according to actual needs, such as transporting raw materials and mixed water in accordance with set ratios, controlling the stirring time and speed, adjusting the flow rate and pressure of the slurry delivery, etc. This not only improves the efficiency and accuracy of the grouting operation, but also reduces the errors and uncertainties brought by manual operation. At the same time, it is also convenient for remote monitoring and management, reducing the operation and maintenance costs.

[0052] Specifically, the area to be repaired is precisely repaired and filled with premixed flowable solidified soil.

[0053] Specifically, after the repair of the scouring pit is completed, the controller can separately control the first pump body to use the water in the mixed water storage cylinder as high-pressure cleaning water to perform high-pressure flushing on the residual grouting filler in each pipeline, so that it can be discharged in time to prevent it from solidifying and blocking the pipeline.

[0054] In the optional scheme of this embodiment, it is more preferred that the mixed water storage cylinder, the mixing and stirring cylinder and each raw material storage cylinder are fixedly installed on the column 11 of the offshore wind power cylindrical foundation located in the sea water; the mixed water storage cylinder and each raw material storage cylinder are provided with a supplementary addition pipe, and the upper end opening of each supplementary addition pipe is located above the sea surface; and the mixing and stirring cylinder is provided with a ventilation pipe, and the upper end opening of the ventilation pipe is located above the sea surface. The mixed water storage cylinder, the mixed stirring cylinder and each raw material storage cylinder are fixed on the column 11 of the offshore wind power cylindrical foundation located in the sea water, which effectively utilizes the space around the column 11, avoids the separate installation of storage and stirring equipment on the seabed or other locations, reduces the occupation of the seabed space, and facilitates the installation and maintenance of the equipment; the supplementary addition pipes arranged on the mixed water storage cylinder and each raw material storage cylinder have their upper end openings located above the sea surface, which is convenient for the staff to carry out the replenishment operation of mixed water and raw materials above the sea surface, so that there is no need to dive or use special underwater equipment, reduces the difficulty and cost of replenishment, and improves the efficiency and safety of replenishment; the mixing and stirring cylinder is provided with a vent pipe, and its upper end opening is located above the sea surface, which can ensure that the mixing cylinder is connected to the outside atmosphere, maintain normal air pressure balance, and avoid problems caused by pressure changes in the cylinder during the mixing process, such as poor transportation of raw materials and mixed water, excessive load on the agitator, etc., and also helps to improve the mixing effect and the quality of the poured filling.

[0055] Among them, about other related settings description:

[0056] Specifically, since the device is used in seawater, the materials of its various parts are corrosion-resistant and other materials, and each component must be adapted based on waterproofness, as well as the necessary sealing of each connection of the grouting pipeline.

[0057] Specifically, necessary valves, such as electronically controlled valves, may be provided on each pipeline in the grouting device, which are communicatively connected with the controller to achieve more accurate and reliable control.

[0058] Specifically, the offshore wind power cylindrical foundation includes an outer cylinder wall 10, columns 11 and a plurality of diagonal braces 12, which is an existing structure and will not be described in detail herein.

[0059] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An anti-scouring protection and automatic repair device for an offshore wind power cylindrical foundation, characterized in that: Including protection mechanism and automatic repair mechanism; The protection mechanism includes a plurality of protection components; each of the protection components is used to be circumferentially distributed around the axis of the outer cylinder wall of the offshore wind power cylindrical foundation; the protection components include a protection plate and a pressure applicator; each of the protection plates can be rotatably arranged on the outer cylinder wall of the offshore wind power cylindrical foundation around its corresponding first axis, and the first axis is perpendicular to the axis of the offshore wind power cylindrical foundation; the protection plate can be pressed on the seabed surface below the protection plate; the output end of the pressure applicator is connected to the protection plate, and the output end of the pressure applicator is used to apply a downward pressure force to the protection plate in the rotation direction of the protection plate around the first axis, and the downward pressure force can make the protection plate rotate around the first axis to the side close to the seabed surface; The automatic repair mechanism includes a controller, a posture monitor and a grouting device; the posture monitor is used to detect the posture of each of the protective plates; the grouting device has a total output port, and the total output port can discharge the grouting filler; at least one grouting outlet is opened on the lower end surface of the protective plate in a horizontal state, and each of the grouting outlets can be connected to the total output port; The controller is communicatively connected with the posture monitor, the grouting device and each of the pressure applicators; when the posture of the protective plate detected by the posture monitor reaches a threshold posture, the controller can drive the protective plate through the corresponding pressure applicator until the protective plate is in a horizontal posture, and the controller can control the grouting device to discharge the grouting filler through each of the grouting outlets on the protective plate.

2. The anti-scouring protection and automatic repair device for offshore wind power cylindrical foundation according to claim 1 is characterized by: The protection mechanism comprises an annular fixing plate, which is used to be fixedly sleeved on the outer side of the outer cylinder wall of the offshore wind power cylindrical foundation; each of the protection components is arranged on the annular fixing plate around the axis of the outer cylinder wall of the offshore wind power cylindrical foundation, and the protection plate is rotatably arranged on the annular fixing plate around the first axis; In the circumferential direction around the axis of the outer cylinder wall of the offshore wind power cylindrical foundation, side baffles are fixedly arranged on both sides of the protective plate; in the axial direction of the annular fixing plate, one end of the side baffle away from the axis of the annular fixing plate is lower than the other end of the protective plate away from the axis of the annular fixing plate; The pouring filler discharged from each of the pouring outlets can overflow and solidify on a side of the protection plate away from the axis of the annular fixing plate to form an auxiliary pouring anti-scour body.

3. The anti-scouring protection and automatic repair device for offshore wind power cylindrical foundation according to claim 1 is characterized in that: The lower end surface of the protective plate when in a horizontal state is also fixedly provided with an inner pressure sensor and an outer pressure sensor; The inner pressure sensor is located on a side of the outer pressure sensor close to the axis of the outer cylinder wall of the offshore wind power cylindrical foundation; The inner pressure sensor and the outer pressure sensor are both in communication connection with the controller.

4. The anti-scouring protection and automatic repair device for offshore wind power cylindrical foundation according to claim 1 is characterized in that: The grouting device comprises a mixed water storage cylinder, a mixing and stirring cylinder and a plurality of raw material storage cylinders; The mixed water storage cylinder stores mixed water, and each of the raw material storage cylinders is used to store various raw materials for preparing the filling material; the mixing cylinder has a mixing chamber; The outlet of the mixed water storage cylinder is communicated with the inlet of the first pump body; The outlet of each raw material storage cylinder is respectively connected to the inlet of a corresponding second pump body; The mixing drum is provided with a stirrer; the outlet of the first pump body and the outlets of each of the second pump bodies are both connected to the inlet of the mixing drum; the outlet of the mixing drum is connected to the inlet of the third pump body, and the outlet of the third pump body forms the total output port; and the outlet of the third pump body is connected to a slurry delivery main pipe, and the end of the slurry delivery main pipe is connected to a plurality of slurry delivery branch pipes, and a slurry delivery distribution pipe is fixed on the protective plate, and the slurry delivery distribution pipe is connected to each of the perfusion outlets on the protective plate; The slurry delivery branch pipes correspond to the protective plates one by one, and the outlets of the slurry delivery branch pipes are connected to the inlets of the corresponding slurry delivery distribution pipes through flexible pipes; The controller is in communication connection with the agitator, the first pump body, the third pump body and each of the second pump bodies.

5. The anti-scouring protection and automatic repair device for offshore wind power cylindrical foundation according to claim 4 is characterized in that: The mixed water storage cylinder, the mixed mixing cylinder and each of the raw material storage cylinders are all fixedly arranged on a column of the offshore wind power cylindrical foundation located in the seawater; The mixed water storage cylinder and each of the raw material storage cylinders are provided with a supplementary addition pipe, and the upper end opening of each of the supplementary addition pipes is located above the sea level; and the mixing and stirring cylinder is provided with a ventilation pipe, and the upper end opening of the ventilation pipe is located above the sea level.

6. The anti-scouring protection and automatic repair device for offshore wind power cylindrical foundation according to claim 1 is characterized by: The attitude monitor includes a plurality of angle monitoring sensors, each of which corresponds to the protective plate one by one, and each of which is used to monitor the angle between the corresponding protective plate and the horizontal plane; Each of the angle monitoring sensors is communicatively connected to the controller.

7. The anti-scouring protection and automatic repair device for offshore wind power cylindrical foundation according to claim 4 is characterized by: The outlet of the slurry delivery main pipe is connected with an annular supply pipe, and the annular supply pipe is connected with each of the slurry delivery branch pipes.

8. The anti-scouring protection and automatic repair device for offshore wind power cylindrical foundation according to claim 2 is characterized by: The protective plate is connected to the annular fixing plate via a rotating connecting piece; The rotating connecting member includes a first connecting member and a second connecting member; the first connecting member is used to be fixedly arranged on the outer end of the annular fixing plate away from the axis of the outer cylinder wall of the offshore wind power cylindrical foundation, and the second connecting member is fixedly arranged on the protective plate, and the second connecting member is rotatably arranged on the first connecting member around the first axis.

9. The anti-scouring protection and automatic repair device for offshore wind power cylindrical foundation according to claim 2 is characterized by: When the protective plate is in a horizontal posture, in the axial direction of the outer cylinder wall of the offshore wind power cylindrical foundation, the end of the side baffle away from the axis of the annular fixing plate is the first end, and the end of the side baffle close to the axis of the annular fixing plate is the second end, and the distance between the first end and the lower end surface of the protective plate is greater than the distance between the second end and the lower end surface of the protective plate.

10. The anti-scouring protection and automatic repair device for offshore wind power cylindrical foundation according to claim 2 is characterized in that: At least one through overflow hole is formed on one end of the side baffle plate close to the protective plate, and the overflow hole is connected to the space between the two side baffle plates on the protective plate.

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