Offshore wind power scouring protection device and installation method thereof

Abstract

The application belongs to the technical field of offshore wind power, and discloses a kind of offshore wind power scour protection device and its installation method, wherein the protection device includes wind power base pile, net cage and scour protection component, wind power base pile is fixed to seabed, wind power base pile includes at least three support columns, support column extends along vertical direction, and all support columns enclose to form containing space;Net cage is set in containing space, and at least the periphery of net cage top is connected with multiple support columns;Scour protection component includes mounting seat and multiple bionics plants, mounting seat is set on seabed, bionics plant is set on mounting seat, and at least part of bionics plant is connected to the bottom of net cage with the end away from mounting seat.The protection device of the application can stabilize the position of both ends of bionics plant along vertical direction by connecting bionics plant set on mounting seat to the bottom of net cage, avoid the situation that bionics plant is buried by silt, ensure the structural stability of bionics plant, so as to ensure the scour protection effect of bionics plant.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of offshore wind power technology, and particularly relates to a kind of offshore wind power anti-scour protection device and installation method thereof. BACKGROUND

[0002] The jacket foundation is one of the most widely used offshore wind turbine foundation forms, which is a space truss structure connected with seabed by pipe piles. However, the marine environment along the coast is very complex, and under the condition of poor seabed address, the fixed jacket foundation will be scoured around under the action of wind and wave, current and tide. The scouring process is caused by the complex movement of seawater around the jacket foundation, which leads to the increase of current speed near the seabed. The current carries the silt and sediment on the seabed and further carries them away from the jacket foundation, thus forming a scour pit, and in severe cases, even leading to the collapse of the entire wind turbine and causing huge losses.

[0003] At present, bionic grass protection method is commonly used to actively prevent scouring of the jacket foundation. The bionic grass has the characteristics of low manufacturing cost, convenient installation and use, and long action period. However, in the case of large amount of silt accumulation, the bionic grass is easy to be buried by silt and lose the effect of preventing scouring. SUMMARY

[0004] The purpose of the present application is to provide a kind of offshore wind power anti-scour protection device and installation method thereof, which has simple structure and can keep the bionic plants upright by combining with net cage structure, ensuring the effect of preventing scouring of bionic plants and convenient installation.

[0005] To achieve this purpose, the present application adopts the following technical solutions:

[0006] In the first aspect, a kind of offshore wind power anti-scour protection device is provided, which includes wind power pile, net cage and anti-scour assembly. The wind power pile is fixed to the seabed. The wind power pile includes at least three spaced support columns. The support columns extend in the vertical direction. All the support columns enclose a containing space. The net cage is arranged in the containing space. At least the outer periphery of the top of the net cage is connected with the plurality of support columns. The anti-scour assembly includes a mounting seat and a plurality of bionic plants. The mounting seat is arranged on the seabed. The bionic plants are arranged on the mounting seat. At least part of the bionic plants is connected to the bottom of the net cage at the end away from the mounting seat.

[0007] As a preferred solution of the offshore wind power anti-scour protection device, the anti-scour assembly further includes a spring. The spring is arranged between the bionic plants and the mounting seat. The spring always has a movement trend to drive the bionic plants to move away from the net cage. And / or,

[0008] The spring is arranged between the bionic plant and the net cage, and the spring always has a movement tendency of driving the bionic plant to move away from the mounting base.

[0009] As a preferred solution of the offshore wind power scour protection device, the scour protection assembly further comprises a mounting belt, the mounting belt extends along a first direction, a plurality of bionic plants are arranged on the mounting belt along the first direction, and two ends of the mounting belt are detachably connected to the mounting base, and the first direction is arranged at an angle with the vertical direction.

[0010] As a preferred solution of the offshore wind power scour protection device, each bionic plant comprises a fixing sleeve and a plurality of bionic grasses, all the bionic grasses in each bionic plant are arranged on the mounting belt along a second direction, and all the bionic grasses are fixed to the fixing sleeve away from one end of the mounting belt, the fixing sleeve is detachably connected to the net cage, and the first direction, the second direction and the vertical direction are arranged at angles with each other.

[0011] As a preferred solution of the offshore wind power scour protection device, a plurality of lifting rings are arranged on the mounting base, and the mounting belt is detachably connected to the lifting ring through a lock buckle; and / or,

[0012] The scour protection assembly further comprises a lock ring, the fixing sleeve is detachably connected to the net cage through the lock ring, and the inner side wall of the lock ring is provided with a flexible layer.

[0013] As a preferred solution of the offshore wind power scour protection device, the mounting base comprises a plurality of support blocks, and all the support blocks are connected in a head-to-tail manner around the wind power pile.

[0014] As a preferred solution of the offshore wind power scour protection device, the support block has an inclined surface, the inclined surface is inclined downward from one end adjacent to the wind power pile to the other end away from the wind power pile.

[0015] As a preferred solution of the offshore wind power scour protection device, part of the support blocks are further provided with a limiting groove for limiting the submarine cable.

[0016] In a second aspect, a mounting method of an offshore wind power scour protection device is provided, and the offshore wind power scour protection device is provided, comprising the following steps:

[0017] S10, on one side of the wind turbine pile of the offshore wind power scour protection device, the mounting base of the scour protection assembly of the offshore wind power scour protection device is hoisted on the seabed and adjusted to a specified position on the construction ship by using a crane.

[0018] S20, the net cage of the offshore wind power scour protection device is placed in the containing space of the wind power pile, and the periphery of the top of the net cage is fixed to the support columns of the wind power pile;

[0019] S30, the bionic plants of the scour protection assembly are dived into the seabed by the workers, and all the bionic plants are installed on the mounting seat, and the ends of the bionic plants away from the mounting seat are connected to the bottom of the net cage, so that the bionic plants remain in the vertical standing state.

[0020] As a preferred solution of the installation method of the offshore wind power scour protection device, the mounting seat is formed by splicing a plurality of support blocks in sequence, and the S10 comprises:

[0021] S101, according to the number of the support columns, a plurality of support blocks are divided into a plurality of support block groups on the construction ship, and the support blocks in each support block group are spliced into support seats in advance;

[0022] S102, the plurality of support seats are hoisted on the seabed by the crane and adjusted to the specified position, and the workers dive into the seabed to splice all the support seats in sequence.

[0023] The present application has the following advantages: the net cage is fixed by the wind power pile, so that the connection of the net cage is stable and reliable, the structural utilization rate of the wind power pile is effectively improved, the anchor structure of the traditional net cage is omitted, and the overall investment cost of the net cage is reduced; the bionic plants arranged on the mounting seat are connected to the bottom of the net cage, which can stabilize the positions of the two ends of the bionic plants in the vertical direction, avoid the situation that the bionic plants are buried by silt, ensure the structural stability of the bionic plants, and ensure the scour protection effect of the bionic plants; on the other hand, the bionic plants pull the bottom of the net cage, avoid the influence of the overlapping of the net cage caused by the impact of seawater on the net cage, ensure the structural stability of the net cage, and the interception of the bionic plants can enrich the nutrients on the seabed, so that the bionic plants close to the net cage can provide a good living environment for the cultivation in the net cage. BRIEF DESCRIPTION OF DRAWINGS

[0024] The present application will be further described in detail below according to the drawings and examples.

[0025] Figure 1 is a structural schematic view of the offshore wind power scour protection device of the embodiment of the present application;

[0026] Figure 2 is a structural schematic view of the scour protection assembly of the embodiment of the present application;

[0027] Figure 3 is a structural schematic view of the lock ring of the embodiment of the present application;

[0028] Figure 4 is a structural schematic diagram of a support block of an embodiment of the present application;

[0029] Figure 5 is a mounting schematic diagram of a mounting seat of an embodiment of the present application;

[0030] Figure 6 is a mounting schematic diagram of a mounting seat of another embodiment of the present application.

[0031] in the figure:

[0032] 100, submarine cable;

[0033] 1, wind power foundation pile; 11, support column; 12, containing space; 2, net cage; 3, scour protection assembly; 31, mounting seat; 311, support block; 312, inclined surface; 313, limiting groove; 32, bionic plant; 321, fixing sleeve; 322, bionic grass; 33, mounting belt; 34, support support; 4, lifting ring; 5, lock catch; 6, lock ring; 61, flexible layer; 62, buckle; 63, clamping groove; 7, connecting ring. DETAILED DESCRIPTION

[0034] The present application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, and not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, not all the structures.

[0035] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical and oblique above of the first feature to the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical and oblique below of the first feature to the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0037] In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] As shown in Figures 1 to 4 The offshore wind power scour protection device of the present embodiment comprises a wind power pile 1, a net cage 2, and a scour protection assembly 3. The wind power pile 1 is fixed to the seabed. The wind power pile 1 comprises at least three support columns 11 arranged at intervals. The support columns 11 extend in the vertical direction (the vertical direction is the Z direction shown in the figure). All the support columns 11 enclose a containing space 12. The net cage 2 is arranged in the containing space 12. At least the periphery of the top of the net cage 2 is connected to the plurality of support columns 11, that is, the net cage 2 is connected to each support column 11 through a connecting structure to pull apart the net cage 2 and ensure the structural capacity of the net cage 2. The scour protection assembly 3 comprises a mounting seat 31 and a plurality of bionic plants 32. The mounting seat 31 is arranged on the seabed. The bionic plants 32 are arranged on the mounting seat 31. At least part of the bionic plants 32 are connected to the bottom of the net cage 2 at the end away from the mounting seat 31.

[0039] It can be understood that the wind power pile 1 is the foundation of the offshore wind turbine. By using the wind power pile 1 to fix the net cage 2, the connection of the net cage 2 is stable and reliable. The structural utilization rate of the wind power pile 1 is effectively improved. The setting of the anchoring structure of the traditional net cage 2 is omitted. The overall investment cost of the net cage 2 is reduced. By connecting the bionic plants 32 arranged on the mounting seat 31 to the bottom of the net cage 2, on the one hand, the positions of the two ends of the bionic plants 32 in the vertical direction can be stabilized. The situation that the bionic plants 32 are buried by silt is avoided. The structural stability of the bionic plants 32 is ensured. The bionic plants 32 can slow down the impact of sea current and intercept silt, thereby ensuring the scour protection effect of the bionic plants 32. On the other hand, the bionic plants 32 pull the bottom of the net cage 2. The influence of the overlapping of the net cage 2 caused by the impact of seawater on the net cage 2 is avoided. The structural stability of the net cage 2 is ensured. The stability of the breeding space in the net cage 2 is ensured. The interception of the bionic plants 32 can enrich the seabed nutrients. Therefore, the bionic plants 32 close to the net cage 2 can also provide a good living environment for breeding in the net cage 2.

[0040] Further, the anti-scouring assembly 3 further comprises springs, the bionic plants 32 and the mounting base 31 are provided with springs, the springs always have a movement trend of driving the bionic plants 32 to move away from the net cage 2; the bionic plants 32 and the net cage 2 are provided with springs, the springs always have a movement trend of driving the bionic plants 32 to move away from the mounting base 31. The bionic plants 32 have a certain structural hardness and low plasticity, therefore, through the setting of the springs, the buffering toughness of the bionic plants 32 when impacted by the sea current can be effectively improved, so as to ensure the relative stability of the mounting base 31, the bionic plants 32 and the net cage 2, and avoid that the bionic plants 32 excessively pull the mounting base 31 and the net cage 2 due to the impact of the sea current.

[0041] In addition, the springs can be arranged only between the bionic plants 32 and the mounting base 31, so that even if the springs are buried by the silt, the use of the springs will not be affected. Of course, the springs can also be arranged only between the bionic plants 32 and the net cage 2, which also has the effect of improving the buffering toughness of the bionic plants 32 when impacted by the sea current.

[0042] In some embodiments, as shown in Figure 1 and Figure 2 The anti-scouring assembly 3 further comprises a mounting belt 33, the mounting belt 33 extends along a first direction (the first direction is the X direction shown in the figure), a plurality of bionic plants 32 are arranged on the mounting belt 33 along the first direction, and the two ends of the mounting belt 33 are respectively detachably connected to the mounting base 31. The first direction is arranged at an angle with the vertical direction. By arranging a plurality of bionic plants 32 on the mounting belt 33 and installing them together with the mounting belt 33, the batch connection convenience of the underwater bionic plants 32 can be improved.

[0043] For example, four support columns 11 are arranged in a square shape, the mounting base 31 is a square ring structure and surrounds the outer periphery of the wind power foundation pile 1 formed by the four support columns 11, a plurality of lifting rings 4 are arranged on the mounting base 31, the mounting belt 33 is detachably connected to the lifting ring 4 through the lock buckle 5, and a plurality of mounting belts 33 are arranged alternately along the first direction and the second direction (the second direction is the Y direction shown in the figure). That is, a plurality of mounting belts 33 extend along the first direction and are connected to the two ends of the mounting base 31 along the first direction, and a plurality of mounting belts 33 extend along the second direction and are connected to the two ends of the mounting base 31 along the second direction, so as to ensure the installation density of the bionic plants 32.

[0044] Of course, the ring structure of the mounting seat 31 can omit the middle part structure, improve the production and assembly convenience, and the bionic plants 32 above the middle empty part can intercept the silt to fill the middle empty part of the ring structure, so as to ensure the installation stability of the whole mounting seat 31. In addition, the mounting is convenient by the detachable connection mode of the lock buckle 5 and the lifting ring 4, and it is convenient for later maintenance and replacement. The lock buckle 5 structure can directly adopt the market standard parts, and no specific examples are given. At the same time, the lifting ring 4 can also be applied to the crane connection during the transportation of the mounting seat 31, so as to improve the transportation convenience of the mounting seat 31.

[0045] Further, each bionic plant 32 includes a fixing sleeve 321 and a plurality of bionic grasses 322. In each bionic plant 32, all the bionic grasses 322 are arranged on the mounting belt 33 in a second direction, and the ends of all the bionic grasses 322 away from the mounting belt 33 are fixed on the fixing sleeve 321. The fixing sleeve 321 is detachably connected with the net cage 2. The first direction, the second direction and the vertical direction are arranged at an included angle with each other. The simulation of the bionic plant 32 is realized by arranging the bionic grasses 322 at intervals and connecting by the fixing sleeve 321. The interval arrangement of the bionic grasses 322 can not only satisfy the daily reduction of the sea current impact and the silt interception, but also can be used for the sea current to pass through, so as to effectively ensure the structural stability of the bionic plant 32.

[0046] In the embodiment, the mounting belt 33 is composed of woven cloth and cloth strips arranged at intervals on the woven cloth. Two cloth strips constitute a group, and each bionic plant 32 corresponds to a group of cloth strips. The bionic grasses 322 in each bionic plant 32 are connected between the two cloth strips and then the two cloth strips are sewn and connected. The cloth strip has low cost and convenient connection.

[0047] Further, as shown in Figure 3 The anti-scouring assembly 3 further includes a lock ring 6. The fixing sleeve 321 is detachably connected with the net cage 2 through the lock ring 6, and the inner side wall of the lock ring 6 is provided with a flexible layer 61. In fact, the upper part of the fixing sleeve 321 is provided with a connecting ring 7, and the connecting ring 7 is connected with the net cage 2 by the lock ring 6. For example, the lock ring 6 adopts a structure composed of two half circular rings rotatably connected. The two half circular rings are respectively provided with a buckle 62 and a clamping groove 63 at the ends away from the rotating end. The buckle 62 is clamped in the clamping groove 63 by rotating the half circular ring, so as to connect the connecting ring and the net cage 2. The connection is stable, and when maintenance and replacement are needed, the buckle 62 and the clamping groove 63 can be separated, so that the disassembly and assembly are convenient. In addition, the flexible layer 61 arranged on the inner side wall of the lock ring 6 can reduce friction, so as to reduce the wear of the net cage 2. The flexible layer 61 can directly adopt sponge or silica gel and the like. It should be noted that the bottom of the net cage 2 is mainly composed of net clothes and net frames. The net frame is relatively thick and has good structural strength. Therefore, the bionic plant 32 is mainly connected to the net frame at the bottom of the net cage 2, so as to ensure the connection stability between the bionic plant 32 and the net cage 2.

[0048] In other embodiments, as shown in Figs. Figure 1 , Figure 2 and Figure 4 , the mounting base 31 comprises a plurality of support blocks 311, all of which are spliced together around the wind power pile 1. By splitting the mounting base 31 into a plurality of support blocks 311, on the one hand, the small structure facilitates production and reduces costs, and on the other hand, the small structure also facilitates transportation and installation, and at the same time, when the mounting base 31 is locally corroded or damaged by impact, only the support block 311 at that position needs to be replaced, thereby reducing maintenance costs. Of course, the bionic plants 32 can also be directly provided on the support blocks 311. For example, when onshore, the support blocks 311 are drilled and the bionic plants 32 are inserted into the holes and grouted, thereby fixing the bionic plants 32 to the support blocks 311, which can further ensure the overall anti-erosion effect of the offshore wind power anti-erosion protection device.

[0049] Further, the support block 311 has an inclined surface 312, which is inclined downward from one end adjacent to the wind power pile 1 to the other end away from the wind power pile 1. Through the provision of the inclined surface 312, the sea current can flow along the inclined surface 312 when impacting, thereby reducing the impact force of the sea current on the mounting base 31 and improving the structural stability of the mounting base 31.

[0050] Still further, some of the support blocks 311 are also provided with a limiting groove 313 for limiting the submarine cable 100. Through the limitation of the limiting groove 313 on the submarine cable 100, the swing of the suspended section of the submarine cable 100 can be reduced, thereby ensuring the stability of the structure of the submarine cable 100.

[0051] As shown in Figs. Figure 1 , Figure 5 and Figure 6 , the embodiments of the present application also provide a method for installing an offshore wind power anti-erosion protection device, which provides the offshore wind power anti-erosion protection device of any of the above embodiments, comprising the following steps:

[0052] S10, on one side of the wind turbine pile of the offshore wind power anti-erosion protection device, the mounting base 31 of the anti-erosion assembly 3 of the offshore wind power anti-erosion protection device is hoisted on the seabed and adjusted to a specified position on the construction ship by using a crane;

[0053] S20, the net cage 2 of the offshore wind power anti-erosion protection device is placed in the containing space 12 of the wind power pile 1, and the periphery of the top of the net cage 2 is fixed to each support column 11 of the wind power pile 1;

[0054] S30, the operation personnel carry the bionic plant 32 of the anti-scouring assembly 3 to dive into the seabed, and install all the bionic plants 32 on the mounting seat 31, and then connect the end of the bionic plant 32 away from the mounting seat 31 to the bottom of the net cage 2, so that the bionic plant 32 remains in an upright state.

[0055] The method is simple to operate and convenient to install. By using the wind power pile 1 to fix the net cage 2, the connection of the net cage 2 is stable and reliable, the structural utilization rate of the wind power pile 1 is effectively improved, the setting of the anchoring structure of the traditional net cage 2 is omitted, the overall investment cost of the net cage 2 is reduced, the bionic plant 32 set on the mounting seat 31 is connected to the bottom of the net cage 2, the positions of the two ends of the bionic plant 32 in the vertical direction are stabilized, the situation that the bionic plant 32 is buried by silt is avoided, and the structural stability of the bionic plant 32 is ensured, so that the anti-scouring effect of the bionic plant 32 is ensured.

[0056] Further, the mounting seat 31 is formed by splicing a plurality of support blocks 311 end to end, and S10 comprises:

[0057] S101, according to the number of support columns 11, a plurality of support blocks 311 are divided into a plurality of support block groups on the construction ship, and the support blocks 311 in each support block group are spliced into support seats 34 in advance;

[0058] S102, the plurality of support seats 34 are hoisted and arranged on the seabed by using a crane, and the operation personnel dive into the seabed to splice the support seats 34 end to end.

[0059] As shown in the figure, Figure 5 for example, when the wind power pile 1 is composed of four support columns 11, the support blocks 311 can be equally divided into four groups on the construction ship and assembled into four linear support seats 34, and then the four support seats 34 are hoisted and arranged on the seabed for assembly, so as to reduce the assembly time of the operation personnel on the seabed and improve the assembly convenience of the mounting seat 31 on the seabed.

[0060] As shown in the figure, Figure 6 in addition, the plurality of support blocks 311 can also be divided into two groups, that is, a part of the support blocks 311 are spliced into U-shaped support seats on the construction ship, and the other part of the support blocks 311 are spliced into linear support seats 34, and the U-shaped support seats and the linear support seats are hoisted to the seabed for assembly, respectively.

[0061] It is worth noting that, in order to facilitate the operation personnel to adjust the position of the support block 311 in the seabed, a float can also be bound on the lifting ring 4 of the support block 311, and the buoyancy of the float can offset part of the weight of the support block 311, so as to facilitate the operation personnel to move and adjust the position of the support block 311, and improve the connection convenience of the support block 311.

[0062] Obviously, the above embodiments of the present application are merely exemplary but not intended to limit the embodiments of the present application. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. It is not necessary or possible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An erosion protection device for offshore wind power, c h a r a c t e r i s e d in that The application relates to a scour protection device for offshore wind power, comprising: a wind power pile fixed to a seabed, the wind power pile comprising at least three spaced support columns extending in a vertical direction, all the support columns enclosing a containing space; a net cage arranged in the containing space, and at least the periphery of the top of the net cage being connected to the support columns; a scour protection assembly comprising a mounting base arranged on the seabed and a plurality of bionic plants arranged on the mounting base, at least one end of the bionic plants away from the mounting base being connected to the bottom of the net cage; springs arranged between the bionic plants and the mounting base, the springs always having a movement tendency to drive the bionic plants to move away from the net cage; and springs arranged between the bionic plants and the net cage, the springs always having a movement tendency to drive the bionic plants to move away from the mounting base; a mounting belt extending in a first direction, a plurality of the bionic plants being arranged on the mounting belt in the first direction, and both ends of the mounting belt being detachably connected to the mounting base; each of the bionic plants comprising a fixing sleeve and a plurality of bionic grasses, all the bionic grasses in each of the bionic plants being arranged on the mounting belt in a second direction, and one end of all the bionic grasses away from the mounting belt being fixed to the fixing sleeve, the fixing sleeve being detachably connected to the net cage, and the first direction, the second direction and the vertical direction being arranged at an angle with each other.

2. A scour protection device for offshore wind farms according to claim 1, characterized in that a plurality of lifting rings are arranged on the mounting base, and the mounting belt is detachably connected to the lifting rings through a lock buckle; and / or the scour protection assembly further comprises a lock ring, the fixing sleeve is detachably connected to the net cage through the lock ring, and the inner side wall of the lock ring is provided with a flexible layer.

3. Offshore wind farm scour protection according to claim 1 or 2, characterized in that, The mounting base comprises a plurality of support blocks, and all the support blocks are connected end to end around the wind power pile.

4. A scour protection arrangement for offshore windfarms according to claim 3, characterised in that, The support blocks have inclined surfaces which are inclined downward from one end adjacent to the wind power pile to the other end away from the wind power pile.

5. A scour protection arrangement for offshore windfarms according to claim 3, characterised in that, Some of the support blocks are further provided with limiting grooves for limiting submarine cables.

6. A method of installing an offshore wind farm scour protection device, characterised by, The scour protection device for offshore wind power of any one of claims 1-5 is provided, comprising the following steps: S10. On one side of the wind turbine pile of the scour protection device for offshore wind power, the mounting base of the scour protection assembly of the scour protection device for offshore wind power is hoisted on a construction ship by a crane and adjusted to a specified position on a seabed; S20. The net cage of the scour protection device for offshore wind power is placed in the containing space of the wind power pile, and the periphery of the top of the net cage is fixed to the support columns of the wind power pile; S30. An operator carries the bionic plants of the scour protection assembly to dive into the seabed, and all the bionic plants are arranged on the mounting base, and one end of the bionic plants away from the mounting base is connected to the bottom of the net cage, so that the bionic plants remain in a vertical standing state.

7. A method of installing a scour protection arrangement for offshore wind turbines according to claim 6, characterized in that The mounting base is formed by connecting a plurality of support blocks end to end, and the S10 comprises: S101. Divide a plurality of support blocks into a plurality of support block groups corresponding to the number of support columns on the construction vessel, and pre-assemble the support blocks in each support block group into support supports; S102: Use the crane to hoist the plurality of support supports onto the seabed and adjust them to designated positions. An operator dives into the seabed to connect all the support supports end to end.

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