Anti-scouring repairing device for offshore wind power foundation and operation method of anti-scouring repairing device

Abstract

The invention belongs to the technical field of offshore wind power, and discloses an offshore wind power foundation anti-scour repairing device and an operation method.The repairing device comprises a repairing frame, connecting pieces and a repairing assembly, the repairing frame is fixed to a seabed and spaced from a wind power foundation pile, and the multiple connecting pieces are annularly and evenly distributed and connected to the peripheral side of the wind power foundation pile; the end, away from the wind power foundation pile, of the connecting piece is connected with the repairing frame, a plurality of repairing assemblies are arranged on the connecting piece at intervals, each repairing assembly comprises a driving piece and bionic grass, and the driving pieces are arranged on the connecting piece and connected with the bionic grass. According to the anti-scour repairing device for the offshore wind power foundation, the bionic grass is driven by the driving part to move in the vertical direction, so that the distance between the bionic grass and the seabed is guaranteed, the bionic grass can still be exposed out of the seabed after the scour pit is filled with silt and repaired, the bionic grass is prevented from being buried by the silt, and the service life of the bionic grass is prolonged. And the restoration capability of the bionic grass on the scour pit and the subsequent anti-scour effect are effectively ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power generation, and in particular to an offshore wind power generation foundation anti-scour repair device and an operation method thereof. Background Art

[0002] The offshore wind turbine foundation is the carrier that supports the wind turbine tower and the entire wind turbine superstructure. The monopile foundation is one of the most widely used offshore wind turbine foundation forms. However, the coastal marine environment is very complex. When the seabed address conditions are poor, the fixed monopile foundation will be scoured around the jacket foundation under the action of wind, waves, currents, and tides. The scouring process is caused by the complex movement of seawater around the monopile foundation, which leads to an increase in the speed of the current near the seabed. The current lifts up the mud and sediment on the seabed and further carries it away from the monopile foundation, thus forming a scouring pit. In severe cases, it can even cause the collapse of the entire wind turbine, causing huge losses.

[0003] At present, the bionic grass protection method is often used to actively prevent scour of single pile foundations to reduce the impact of ocean currents. Bionic grass has the characteristics of low production cost, easy installation and use, and long action period. Bionic grass can intercept sediment to repair anti-scour pits. However, when the amount of sediment accumulation is large, the bionic grass is easily buried by the sediment and loses its anti-scour effect. Summary of the invention

[0004] The object of the present invention is to provide an offshore wind power foundation anti-scour repair device and an operating method thereof, which has a simple structure and is easy to operate. Its driving member can drive the bionic grass to move upward to ensure the distance between the bionic grass and the seabed, thereby improving the anti-scour effect of the bionic grass.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] In a first aspect, an offshore wind power foundation anti-scour repair device is provided, comprising a repair frame, a connector and a repair assembly, wherein the repair frame is fixed on the seabed and spaced apart from the wind power piles, a plurality of connectors are evenly connected in a ring shape on the outer circumference of the wind power piles, an end of the connector away from the wind power piles is connected to the repair frame, a plurality of repair assemblies are spaced apart on the connector along the length direction of the connector, and the repair assembly comprises a driving member and bionic grass, wherein the driving member is arranged on the connecting member, and the driving member is in transmission connection with the bionic grass so as to drive the bionic grass to move in a vertical direction.

[0007] As a preferred solution of the offshore wind power foundation anti-scour repair device, the repair component also includes a mounting seat, a distance sensor and a controller. The mounting seat is arranged at the driving end of the driving member, and a plurality of the bionic grasses are arranged at intervals on the mounting seat. The distance sensor is arranged on the bottom side of the mounting seat. The distance sensor is used to measure the distance between the mounting seat and the seabed, and the controller is respectively connected to the driving member and the distance sensor.

[0008] As a preferred solution of the offshore wind power foundation anti-scour repair device, the repair assembly also includes a fixing seat, the fixing seat has a closed accommodating cavity, the driving member is arranged in the accommodating cavity, and the driving end of the driving member extends outside the accommodating cavity and is connected to the mounting seat.

[0009] As a preferred solution for the offshore wind power foundation anti-scour repair device, a guide column is provided on one of the two sides adjacent to each other between the fixing seat and the mounting seat, and a guide groove is provided on the other side, and the guide column is inserted into the guide groove.

[0010] As a preferred solution of the offshore wind power foundation anti-scour repair device, the connecting member includes a connecting sub-member and a fixed frame, the fixed frame is fixedly connected to the outer periphery of the wind power foundation pile, the connecting sub-member is respectively connected to the repair frame and the fixed frame, and the driving member is arranged on the connecting sub-member.

[0011] As a preferred solution of the offshore wind power foundation anti-scour repair device, the connecting member also includes a spring, and the spring is arranged between the repair frame and the connecting member; and / or the spring is arranged between the fixing frame and the connecting member.

[0012] As a preferred solution of the offshore wind power foundation anti-scour repair device, the connecting sub-component includes a plurality of connecting rods, and the repair frame and the driving member, two adjacent driving members, and the driving member and the fixed frame are all connected by the connecting rods. The connecting rods are rotatably connected to the driving member, and the direction of the rotation axis of the connecting rod is perpendicular to the length direction of the connecting member.

[0013] As a preferred solution of the offshore wind power foundation anti-scour repair device, the fixed frame includes two arc frames, one ends of the two arc frames are rotatably connected to each other, and the other ends of the two arc frames are detachably connected, and the two arc frames are enclosed to form a clamping groove for clamping the wind power piles, and one of the groove wall of the clamping groove and the outer peripheral side wall of the wind power pile is provided with a positioning part, and the other is provided with a positioning groove, and the positioning part is inserted in the positioning groove.

[0014] In a second aspect, an operation method of an offshore wind power foundation anti-scour repair device is provided, and the above-mentioned offshore wind power foundation anti-scour repair device is provided, comprising the following steps:

[0015] S10, installing the repair components of the offshore wind power foundation anti-scour repair device one by one on each connecting piece of the offshore wind power foundation anti-scour repair device;

[0016] S20, on a construction ship moored at the side of the wind turbine foundation pile, using a crane to hang the repair frame of the offshore wind turbine foundation anti-scour repair device, each of the connecting parts and the repair assembly on the connecting parts on the seabed and adjust them to a designated position;

[0017] S30. The operator dives into the seabed, connects one end of all the connectors to the outer peripheral side wall of the wind turbine pile, and then connects the other end of the connector away from the wind turbine pile to the repair frame one by one, and adjusts the installation position of each repair component so that the bionic grass of the repair component is vertically upward.

[0018] As a preferred solution of the operation method of the offshore wind power foundation anti-scour repair device, after S30, it also includes S40, which includes the following steps:

[0019] S401: There is a scouring pit on the outer peripheral side of the wind turbine foundation pile. Under the action of the bionic grass to mitigate the impact of the ocean current and intercept the silt, the silt gradually fills the scouring pit;

[0020] S402, the driving component of the repair component in the scouring pit drives the bionic grass to move upward, so that the bionic grass in the scouring pit can maintain a distance from the bottom of the scouring pit.

[0021] The beneficial effects of the present invention are as follows: by setting a plurality of connecting parts to connect the wind turbine piles and the repair frame to form a mesh structure, the silt on the seabed below the offshore wind turbine foundation anti-scour repair device can be protected to a certain extent, thereby reducing the further loss of silt; by setting the bionic grass, the impact of the ocean current can be slowed down, which is beneficial to the sedimentation of silt in the ocean current, so as to fill and repair the scour pit; by using the driving part to drive the bionic grass to move in the vertical direction, so as to ensure the distance between the bionic grass and the seabed, the bionic grass can still be exposed on the seabed after the scour pit is filled and repaired with silt, thereby avoiding the bionic grass being buried by silt, and effectively ensuring the bionic grass's repair ability for the scour pit and the subsequent anti-scour effect. Therefore, the offshore wind turbine foundation anti-scour repair device has the functions of stabilizing, repairing and improving the subsequent anti-scour effect on the seabed around the wind turbine piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0023] Figure 1 It is a partial front view of the offshore wind power foundation anti-scour repair device according to an embodiment of the present invention;

[0024] Figure 2 is a top view of an offshore wind power foundation anti-scour repair device according to an embodiment of the present invention;

[0025] Figure 3 is a schematic diagram of the structure of a repair component according to an embodiment of the present invention;

[0026] In the figure:

[0027] 100, seabed; 200, wind power piles; 300, scour pit;

[0028] 1. Repair frame; 2. Connecting parts; 21. Connecting sub-parts; 22. Fixed frame; 23. Reinforcement rod; 24. Connecting rope; 3. Repair assembly; 31. Driving part; 32. Bionic grass; 33. Mounting seat; 331. Guide column; 34. Distance sensor; 35. Fixed seat; 351. Guide groove. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0033] like Figures 1 to 3 As shown, the offshore wind power foundation anti-scour repair device of the embodiment of the present invention includes a repair frame 1, a connector 2 and a repair component 3. The repair frame 1 is fixed on the seabed 100 and is spaced apart from the wind power pile 200. A plurality of connectors 2 are evenly connected to the outer peripheral side of the wind power pile 200 in an annular manner. The end of the connector 2 away from the wind power pile 200 is connected to the repair frame 1. A plurality of repair components 3 are arranged on the connector 2 at intervals along the length direction of the connector 2. The repair component 3 includes a driving component 31 and bionic grass 32. The driving component 31 is arranged on the connecting component 2, and the driving component 31 is transmission-connected to the bionic grass 32 to drive the bionic grass 32 to move in the vertical direction (the vertical direction is the Z direction shown in the figure).

[0034] It can be understood that by setting up multiple connecting parts 2 to connect the wind turbine piles 200 and the repair frame 1 to form a mesh structure, it is possible to provide certain protection for the silt on the seabed 100 below the offshore wind turbine foundation anti-scour repair device and reduce the further loss of silt; by setting up the bionic grass 32, it is possible to slow down the impact of the ocean current, which is beneficial to the sedimentation of silt in the ocean current, so as to fill and repair the scour pit 300; by using the driving part 31 to drive the bionic grass 32 to move in the vertical direction to ensure the distance between the bionic grass 32 and the seabed 100, the bionic grass 32 can still be exposed on the seabed 100 after the scour pit 300 is filled and repaired with silt, thereby avoiding the bionic grass 32 being buried by silt, and effectively ensuring the bionic grass 32's repair ability for the scour pit 300 and the subsequent anti-scour effect. Therefore, the offshore wind turbine foundation anti-scour repair device of this embodiment has the functions of stabilizing, repairing and improving the subsequent anti-scour effect on the seabed 100 around the wind turbine piles 200.

[0035] Optionally, the repair frame 1 is enclosed by a plurality of support rods. In the present embodiment, six straight support rods are taken as an example. The six support rods are connected end to end in a hexagonal structure around the outer peripheral side of the wind turbine foundation pile 200 to enclose the repair frame 1. Adjacent support rods are detachably connected by buckles and slots, that is, a buckle is provided at one end of the support rod, and a slot is provided at the other end to achieve the end-to-end splicing of the two support rods. The buckle and the slot are stably connected, and no external tools are required to achieve the connection, which reduces the difficulty of the operation of the operators on the seabed 100, and the repair frame 1 is easy to install. It should be noted that a connecting hole is provided on the support rod, and the support rod can be fixed to the seabed 100 by using a positioning pin to ensure the installation stability of the repair frame 1. Of course, the repair frame 1 can also be enclosed by a plurality of arc structures.

[0036] Furthermore, if Figure 2 As shown, the repair component 3 also includes a mounting seat 33, a distance sensor 34 and a controller. The mounting seat 33 is arranged at the driving end of the driving member 31. A plurality of bionic grasses 32 are arranged at intervals on the mounting seat 33. The distance sensor 34 is arranged at the bottom side of the mounting seat 33. The distance sensor 34 is used to measure the distance between the mounting seat 33 and the seabed 100. The controller is connected to the driving member 31 and the distance sensor 34 respectively. By setting the mounting seat 33, more installation areas can be provided for the installation of bionic grass 32, thereby improving the installation density of bionic grass 32. The distance sensor 34 is used to detect the distance between the mounting seat 33 and the seabed 100, so as to feedback to the controller. If the distance value is less than the set threshold, the controller controls the driving member 31 to drive the mounting seat 33 and the bionic grass 32 to move upward, so as to prevent the bionic grass 32 from being buried by the sediment under the action of intercepting the sediment by itself, so that the bionic grass 32 can be exposed on the seabed 100 to maintain the stability of the structure, and automatically adjust to ensure the continuity of the anti-scouring effect of the bionic grass 32, thereby reducing the frequency of daily maintenance by the operators.

[0037] Furthermore, the repair component 3 also includes a fixed seat 35, which has a closed accommodating cavity, and the driving member 31 is arranged in the accommodating cavity, and the driving end of the driving member 31 extends outside the accommodating cavity and is connected to the mounting seat 33. The driving member 31 is arranged in the accommodating cavity of the fixed seat 35. On the one hand, it is convenient for the connecting member 2 to connect to the fixed seat 35 to achieve the connection with the driving member 31. On the other hand, the closed accommodating cavity can be used to effectively protect the driving member 31 to avoid seawater erosion or flooding into the driving member 31 and cause damage, thereby improving the protection of the driving member 31. The driving member 31 is usually driven by an electric cylinder to ensure the controllability of the driving distance and accuracy. It should be noted that a sealing rubber pad can be provided at the connection between the driving end of the driving member 31 and the fixed seat 35 to ensure the sealing of the connection between the driving end and the fixed seat 35, thereby ensuring the sealing of the accommodating cavity.

[0038] Alternatively, if Figure 2As shown, a guide groove 351 is recessed on one side of the fixing seat 35 facing the mounting seat 33, and a guide column 331 is protruded on the one side of the guide groove 351 facing the fixing seat 35. The guide column 331 is inserted into the guide groove 351. The matching arrangement of the guide column 331 and the guide groove 351 can enhance the installation accuracy between the mounting seat 33 and the fixing seat 35, and can also improve the moving stability of the mounting seat 33. In addition, the matching of the guide column 331 and the guide groove 351 can also enhance the impact resistance of the mounting seat 33, so that the impact force of the ocean current on the mounting seat 33 can be partially offset by the supporting force of the groove wall of the guide groove 351 on the guide column 331, reduce the impact torque at the connection between the driving end of the driving member 31 and the mounting seat 33, and ensure the connection strength between the driving member 31 and the mounting seat 33 and the service life of the driving member 31.

[0039] Of course, the guide groove 351 is provided on the bottom fixing seat 35. When the guide column 331 is lifted by the driving member 31 along with the mounting seat 33, the silt flows into the guide groove 351, which can further enhance the support for the guide column 331. In other embodiments, in addition to providing the guide groove 351 on the fixing seat 35 and the guide column 331 on the mounting seat 33, the guide groove 351 can also be provided on the side of the mounting seat 33 facing the fixing seat 35, the guide column 331 can be provided on the side of the fixing seat 35 facing the mounting seat 33, and the guide groove 351 can be provided on the top mounting seat 33 with the opening facing downward, so as to prevent the silt from entering the guide groove 351 and blocking the gap between the guide column 331 and the groove wall of the guide groove 351, thereby ensuring smooth movement between the guide column 331 and the guide groove 351.

[0040] In some embodiments, Figure 1 and Figure 3 As shown, the connecting member 2 includes a connecting member 21 and a fixing frame 22, the fixing frame 22 is fixedly connected to the outer periphery of the wind power pile 200, the connecting member 21 is respectively connected to the repair frame 1 and the fixing frame 22, and the driving member 31 is arranged on the connecting member 21. By setting the fixing frame 22, the connection convenience between the connecting member 21 and the wind power pile 200 can be improved.

[0041] Specifically, the fixing frame 22 includes two arc frames, one end of the two arc frames is rotatably connected to each other, and the other end of the two arc frames is detachably connected. The two arc frames enclose to form a clamping groove for clamping the wind power pile 200, and the groove wall of the clamping groove is provided with a positioning part, and the outer peripheral side wall of the wind power pile 200 is provided with a positioning groove, and the positioning part is inserted into the positioning groove. One of the two arc frames is provided with a buckle, and the other is provided with a slot. The buckle and the slot are connected to realize the connection of the two arc frames, and the connection is stable and does not require the help of external tools. Of course, other methods such as bolt connection can also be used, and specific examples are not given here. It can be understood that by using two arc frames to clamp the wind power pile 200 to realize the connection between the fixing frame 22 and the wind power pile 200, in order to ensure the connection strength between the fixing frame 22 and the wind power pile 200, the cooperation of the positioning part and the positioning groove is provided to enhance the structural restriction between the fixing frame 22 and the wind power pile 200 and ensure the connection stability between the fixing frame 22 and the wind power pile 200.

[0042] Since there are certain scouring pits 300 around the wind turbine pile 200, and the depth of the scouring pits 300 cannot be predetermined, a plurality of positioning grooves are arranged at intervals along the vertical direction on the outer peripheral side of the wind turbine pile 200 to ensure the universality of the connection and cooperation between the fixing frame 22 and the wind turbine pile 200. Of course, in addition to setting the positioning part on the inner side wall of the fixing frame 22 and the positioning groove on the outer peripheral side wall of the wind turbine pile 200, the positioning part can also be set on the outer peripheral side wall of the wind turbine pile 200 and the positioning groove can be set on the inner side wall of the fixing frame 22.

[0043] Furthermore, the connecting component 2 also includes a spring, and a spring is provided between the repair frame 1 and the connecting subcomponent 21; and a spring is provided between the fixed frame 22 and the connecting subcomponent 21. By providing the spring, on the one hand, the connection tolerance when the connecting subcomponent 21 connects the repair frame 1 and the fixed frame 22 can be improved, and the connection convenience of the connecting subcomponent 21 can be improved; on the other hand, the buffering toughness of the connecting subcomponent 21 when impacted by the ocean current can be improved, and the situation that the connecting subcomponent 21 is over-pulled and torn off by the impact of the ocean current can be avoided, thereby ensuring the connection stability of the repair frame 1, the connecting subcomponent 21 and the fixed frame 22. Of course, the spring can be provided only between the repair frame 1 and the connecting subcomponent 21, or only between the fixed frame 22 and the connecting subcomponent 21, and both can achieve the improvement of the buffering toughness of the connecting subcomponent 21.

[0044] Furthermore, if Figure 1 and Figure 2As shown, the connecting sub-component 21 includes a plurality of connecting rods, and the repair frame 1 and the driving member 31, the two adjacent driving members 31, and the driving member 31 and the fixed frame 22 are all connected by connecting rods, and the connecting rods are rotatably connected to the driving member 31, and the direction of the rotation axis of the connecting rods is perpendicular to the length direction of the connecting member 2. By using a connecting rod of a rigid component to realize the connection between the repair frame 1, the driving member 31 and the fixed frame 22, the stability of the installation state of the driving member 31 can be enhanced, and the driving member 31 can be prevented from tipping over or tilting under the impact of the sea current. In this embodiment, the driving member 31 is arranged on the fixed seat 35, so the connecting rod is rotatably connected to the fixed seat 35, and the rotation of the connecting rod is limited to make the fixed seat 35 adapt to the height change of the seabed 100, reduce the possibility of the fixed seat 35 tipping over along the direction perpendicular to the length of the connecting member 2, and improve the installation stability of the connecting member 2 and the driving member 31. Of course, the connecting sub-component 21 can also be directly connected by a flexible rope.

[0045] Alternatively, if Figure 2 and Figure 3 As shown, the connecting member 2 also includes a plurality of reinforcing rods 23, and the plurality of reinforcing rods 23 are evenly distributed on the periphery of the fixed frame 22. The end of the reinforcing rod 23 away from the fixed frame 22 is connected to the repair frame 1. The repair components 3 on two adjacent connecting members 2 are connected to each other, and the repair components 3 on the connecting member 2 adjacent to the reinforcing rod 23 are connected to the reinforcing rod 23 to form a mesh structure, thereby effectively improving the connection strength of the repair components 3.

[0046] For example, at least two connecting members 2 are arranged between two reinforcing rods 23, and a plurality of repair components 3 are arranged on each connecting member 2. Two adjacent repair components 3 between the two connecting members 2 are connected by a connecting rope 24, and the driving member 31 of the repair component 3 on the connecting member 2 adjacent to one side of the reinforcing rod 23 is connected to the reinforcing rod 23 by the connecting rope 24.

[0047] like Figures 1 to 3 As shown, an embodiment of the present invention further provides an operation method of an offshore wind power foundation anti-scour repair device, providing an offshore wind power foundation anti-scour repair device of any of the above embodiments, comprising the following steps:

[0048] S10, installing the repair components 3 of the offshore wind power foundation anti-scour repair device one by one on each connecting piece 2 of the offshore wind power foundation anti-scour repair device;

[0049] S20, on a construction ship moored at the side of the wind power pile 200, a repair frame 1, each connecting member 2 and a repair assembly 3 on the connecting member 2 of the offshore wind power foundation anti-scour repair device are hoisted on the seabed 100 by a crane and adjusted to a designated position;

[0050] S30. The operator dives into the seabed, connects one end of all the connectors 2 to the outer peripheral side wall of the wind turbine pile 200, and then connects the other end of the connector 2 away from the wind turbine pile 200 to the repair frame 1 one by one, and adjusts the installation position of each repair component 3 so that the bionic grass 32 of the repair component 3 is vertically upward.

[0051] The method forms a mesh structure by setting a plurality of connectors 2 to connect the wind power piles 200 and the repair frame 1, which can provide certain protection for the sediment on the seabed 100 below the offshore wind power foundation anti-scour repair device and reduce further loss of sediment. By setting the bionic grass 32, the impact of the ocean current can be mitigated, which is beneficial to the sedimentation of the sediment in the ocean current, so as to fill and repair the scour pit 300, and the operation is simple.

[0052] Of course, before S10, it is necessary to survey the seabed 100 terrain around the wind turbine foundation pile 200 by sonar scanning or diver survey to obtain the scouring data of the seabed 100 terrain, and adaptively adjust the length of the connector 2, module installation, etc. to ensure the structural stability and long-term use of the offshore wind turbine foundation anti-scouring repair device.

[0053] Furthermore, after S30, the method further includes S40, which includes the following steps:

[0054] S401: There is a scouring pit 300 on the outer peripheral side of the wind turbine foundation pile 200. Under the effect of the bionic grass 32 slowing down the impact of the sea current and intercepting the silt, the silt gradually fills the scouring pit 300;

[0055] S402 , the driving member 31 of the repair component 3 in the flushing pit 300 drives the bionic grass 32 to move upward, so that the bionic grass 32 in the flushing pit 300 can maintain a distance from the bottom of the flushing pit 300 .

[0056] The driving member 31 is used to drive the bionic grass 32 to move in the vertical direction to ensure the distance between the bionic grass 32 and the seabed 100, so that the bionic grass 32 can still be exposed on the seabed 100 after the scour pit 300 is filled and repaired with mud and sand, thereby preventing the bionic grass 32 from being buried by mud and sand, and effectively ensuring the bionic grass 32's ability to repair the scour pit 300 and the subsequent anti-scour effect.

[0057] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An offshore wind power foundation anti-scour repair device, characterized in that: It includes a repair frame, a connecting piece and a repair assembly. The repair frame is fixed on the seabed and spaced apart from the wind turbine piles. A plurality of connecting pieces are evenly connected in a ring shape on the outer circumference of the wind turbine piles. The end of the connecting piece away from the wind turbine piles is connected to the repair frame. A plurality of repair assemblies are spaced apart on the connecting piece along the length direction of the connecting piece. The repair assembly includes a driving piece and bionic grass. The driving piece is arranged on the connecting piece, and the driving piece is in transmission connection with the bionic grass to drive the bionic grass to move in a vertical direction.

2. The offshore wind power foundation anti-scour repair device according to claim 1 is characterized in that: The repair component also includes a mounting seat, a distance sensor and a controller. The mounting seat is arranged at the driving end of the driving member. A plurality of bionic grasses are arranged at intervals on the mounting seat. The distance sensor is arranged on the bottom side of the mounting seat. The distance sensor is used to measure the distance between the mounting seat and the seabed. The controller is respectively connected to the driving member and the distance sensor.

3. The offshore wind power foundation anti-scour repair device according to claim 2 is characterized in that: The repair component also includes a fixing seat, which has a closed accommodating cavity. The driving member is arranged in the accommodating cavity, and the driving end of the driving member extends outside the accommodating cavity and is connected to the mounting seat.

4. The offshore wind power foundation anti-scour repair device according to claim 3 is characterized in that: One of the two sides adjacent to each other of the fixing seat and the mounting seat is provided with a guide column, and the other side is provided with a guide groove, and the guide column is inserted into the guide groove.

5. The offshore wind power foundation anti-scour repair device according to any one of claims 1 to 4, characterized in that: The connecting member includes a connecting sub-member and a fixing frame, the fixing frame is fixedly connected to the outer periphery of the wind power pile, the connecting sub-member is respectively connected to the repair frame and the fixing frame, and the driving member is arranged on the connecting sub-member.

6. The offshore wind power foundation anti-scour repair device according to claim 5 is characterized in that: The connecting member further comprises a spring, and the spring is arranged between the repair frame and the connecting sub-member; and / or the spring is arranged between the fixing frame and the connecting sub-member.

7. The offshore wind power foundation anti-scour repair device according to claim 5 is characterized in that: The connecting sub-component includes a plurality of connecting rods, and the repair frame and the driving member, two adjacent driving members, and the driving member and the fixed frame are all connected by the connecting rods. The connecting rods are rotationally connected to the driving member, and the direction of the rotation axis of the connecting rods is perpendicular to the length direction of the connecting member.

8. The offshore wind power foundation anti-scour repair device according to claim 5 is characterized in that: The fixing frame includes two arc frames, one ends of the two arc frames are rotatably connected to each other, and the other ends of the two arc frames are detachably connected, and the two arc frames are enclosed to form a clamping groove for clamping the wind turbine foundation pile, and one of the groove wall of the clamping groove and the outer peripheral side wall of the wind turbine foundation pile is provided with a positioning part, and the other is provided with a positioning groove, and the positioning part is inserted in the positioning groove.

9. An operating method of an offshore wind power foundation anti-scour repair device, characterized in that: An offshore wind power foundation anti-scour repair device according to any one of claims 1 to 8 is provided, comprising the following steps: S10, installing the repair components of the offshore wind power foundation anti-scour repair device one by one on each connecting piece of the offshore wind power foundation anti-scour repair device; S20, on a construction ship moored at the side of the wind turbine foundation pile, using a crane to hang the repair frame of the offshore wind turbine foundation anti-scour repair device, each of the connecting parts and the repair assembly on the connecting parts on the seabed and adjust them to a designated position; S30. The operating personnel dive to the seabed, connect one end of all the connectors to the outer peripheral side wall of the wind turbine pile, and then connect the other end of the connector away from the wind turbine pile to the repair frame one by one, and adjust the installation position of each repair component so that the bionic grass of the repair component is vertically upward.

10. The operating method of the offshore wind power foundation anti-scour repair device according to claim 9, characterized in that: After S30, S40 is further included, and S40 includes the following steps: S401: There is a scouring pit on the outer peripheral side of the wind turbine foundation pile. Under the action of the bionic grass to mitigate the impact of the ocean current and intercept the silt, the silt gradually fills the scouring pit; S402, the driving component of the repair component in the scouring pit drives the bionic grass to move upward, so that the bionic grass in the scouring pit can maintain a distance from the bottom of the scouring pit.

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