Offshore wind power scouring prevention device driven by sea waves and implementation method

Abstract

The application discloses a sea wave driven offshore wind power scour prevention device and an implementation method. The device comprises a tower body and a scour prevention mechanism around the tower body. The tower body comprises a cylinder type foundation, a transition section and a tower section. The scour prevention mechanism comprises a sea wave gas collecting bin. A plurality of radial gas pipelines with sealed piston traction devices are arranged outside the tower body. A scour prevention film is arranged between any two adjacent radial gas pipelines. The lower end of each radial gas pipeline is connected to the seabed through a short pile. The upper end of each radial gas pipeline extends into the inner cavity of the sea wave gas collecting bin. A ring-shaped gas pipeline connected to the radial gas pipelines is arranged outside the transition section. A plurality of gas holes are arranged in the radial and ring-shaped gas pipelines. The device can prevent the formation of vortex and jet flow above the seabed, and can protect the seabed surface through the scour prevention film, thereby achieving active and passive scour prevention of the seabed, effectively reducing the damage of seawater scour to the pile foundation, and facilitating the expansion and contraction of the scour prevention film and the daily maintenance.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of offshore wind power technology, in particular to a kind of offshore wind power scouring device driven by sea wave and implementation method. BACKGROUND

[0002] As a clean energy, wind energy is attracting more and more attention. Compared with land wind energy, offshore wind power has more promising future due to its low turbulence, no occupation of arable land, proximity to the coast and other advantages. However, offshore wind power also faces complex wind, wave and current environment, among which, the scouring effect of wave and current on wind turbine foundation is one of the most serious problems.

[0003] As shown in Figure 1 , offshore wind turbine foundation includes tower main body, which includes cylinder foundation 1, transition section 2 and tower section 3 at the upper part, the top of tower section 3 is used to install wind turbine generator set. When sea current A1 flows through the tower section 3 of wind power generation, due to the blocking effect of tower section 3, it will cause disturbance of sea current A1. On the one hand, it will produce water bulge above the water surface; on the other hand, it will produce downward jet flow A2 along the tower section 3 below the water surface, when jet flow A2 approaches and collides with seabed 12, it will further produce vortex A3, thereby driving the movement of silt on seabed 12, forming a large horseshoe scour pit around cylinder foundation 1, resulting in the structure of cylinder foundation 1 exposed outside seabed 12. If the scouring is too large, it will undoubtedly seriously affect the safety and stability of the structure of cylinder foundation 1.

[0004] However, the existing scouring prevention method of offshore wind power foundation has unreasonable design, and has problems such as being greatly affected by terrain and water flow conditions, high construction cost, time-consuming and laborious maintenance, etc.

[0005] Therefore, it is urgent to develop a technology to solve the above technical problems. SUMMARY

[0006] The purpose of the present application is to provide a kind of offshore wind power scouring device driven by sea wave and implementation method to solve the technical defects of prior art.

[0007] Therefore, the present application provides a kind of offshore wind power scouring device driven by sea wave, which includes tower main body and scouring prevention mechanism arranged around the tower main body.

[0008] Among them, the tower main body includes cylinder foundation, transition section and tower section.

[0009] The top of the cylinder foundation is provided with the transition section.

[0010] The top of the transition section is provided with the cylinder foundation.

[0011] The cylinder type foundation is embedded in the seabed, and the top surface of the cylinder type foundation is flush with the surface of the seabed.

[0012] The anti-scouring mechanism comprises a sea wave gas collecting bin, a plurality of anti-scouring films, a sealing piston traction device, a radial gas pipeline, a ring-shaped gas pipeline, a gas hole and a short pile.

[0013] A plurality of radial gas pipelines are arranged on the circumferential outer side of the tower body in equal intervals from top to bottom.

[0014] An anti-scouring film is arranged between any two adjacent radial gas pipelines.

[0015] The lower end of each radial gas pipeline is fixed on the seabed through a short pile.

[0016] The sea wave gas collecting bin is fixed on the circumferential outer side of the tower barrel section of the tower body in a surrounding manner.

[0017] The bottom of the sea wave gas collecting bin is open.

[0018] The upper end of each radial gas pipeline extends into the inner cavity of the hollow sea wave gas collecting bin.

[0019] A sealing piston traction device is arranged on each radial gas pipeline.

[0020] A bottom-opened hollow anti-scouring film containing cabin is arranged below the sea wave gas collecting bin in a surrounding manner.

[0021] The anti-scouring film containing cabin is used for containing the plurality of anti-scouring films in a folded state.

[0022] The upper end of each anti-scouring film is fixedly connected to the top inner wall of the anti-scouring film containing cabin or the circumferential outer wall of the tower barrel section.

[0023] The lower end of each anti-scouring film is fixedly connected to the sealing piston traction device on the adjacent radial gas pipeline.

[0024] The ring-shaped gas pipeline is arranged on the lower circumferential outer side of the transition section of the tower body in a surrounding manner.

[0025] The ring-shaped gas pipeline is connected to the lower section of the radial gas pipeline close to the seabed.

[0026] A plurality of gas holes are arranged on the pipe wall of the lower section of the radial gas pipeline and the pipe wall of the ring-shaped gas pipeline.

[0027] In addition, the application also provides an implementation method of the offshore wind power anti-scouring device driven by sea waves.

[0028] Step S1, the whole assembly of the cylinder type foundation, transition section and tower section is assembled at the coast to obtain the tower body, and then the anti-scouring mechanism is installed around the tower body, the anti-scouring mechanism includes a sea wave gas collection bin, an anti-scouring film with bionic grass, a sealing piston traction device, a radial gas pipeline and a ring-shaped gas pipeline;

[0029] Step S2, the whole tower body and the installed anti-scouring mechanism are floated to the destination, and then are sunk and installed as a whole; after the sinking installation of the cylinder type foundation is completed, a plurality of short piles around the cylinder type foundation are sequentially driven into the seabed to fix the tail of the radial gas pipeline and prevent it from moving;

[0030] Step S3, the expansion and installation construction of the anti-scouring film is started to make the anti-scouring film laid around the cylinder type foundation;

[0031] Step S4, the sea wave gas collection bin is started, and atmospheric gas is transported to the seabed surface through the sea wave gas collection bin and the radial gas pipeline and the ring-shaped gas pipeline, so as to interfere with the formation of the vortex A3 at the vortex area above the seabed and prevent the jet flow A2 in the front direction of the tower section, and avoid the scouring of the seabed around the cylinder type foundation.

[0032] It can be seen from the technical scheme provided by the present application that, compared with the prior art, the present application provides a sea wave driven offshore wind power anti-scouring device and implementation method, which is designed scientifically, can prevent the formation of vortex and jet flow above the seabed, and protects the seabed surface through the anti-scouring film, realizes active and passive anti-scouring of the seabed, effectively reduces the harm of seawater scouring the seabed to the pile foundation (i.e. the cylinder type foundation), and facilitates the expansion and contraction of the anti-scouring film and daily maintenance.

[0033] After inspection, the present application provides an energy-saving, efficient, economic, harmonious and passive anti-scouring scheme, which can effectively reduce the harm of seawater scouring the seabed to the pile foundation (i.e. the cylinder type foundation), has wide adaptability and is easy to maintain, and has great practical significance. The technical scheme of the present application is a fast, efficient, economic and green scouring protection scheme for offshore wind power, which is beneficial to improve the safety and stability of the whole offshore wind turbine. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a working state schematic diagram of an existing offshore wind turbine foundation under the influence of sea current;

[0035] Figure 2 It is a whole working principle diagram of the sea wave driven offshore wind power anti-scouring device provided by the present application;

[0036] Figure 3The working state diagram of the sea wave driven offshore wind power anti-scour device without the anti-scour coating being unfolded and the gas holes on the gas pipeline and the circumferential gas pipeline not being opened to flow out gas is provided in the application;

[0037] Figure 4 The three-dimensional axial side schematic diagram of the sea wave driven offshore wind power anti-scour device after operation (i.e. after the anti-scour coating is unfolded) is provided in the application Figure 1 ;

[0038] Figure 5 The three-dimensional axial side schematic diagram of the sea wave driven offshore wind power anti-scour device after operation (i.e. after the anti-scour coating is unfolded) is provided in the application Figure 2 ;

[0039] Figure 6 The operation principle schematic diagram of the sea wave driven offshore wind power anti-scour device is provided in the application, wherein the sea wave gas collecting bin 5 is shown in the figure

[0040] Figure 7 The sectional view of the radial gas pipeline and the sealing piston traction device is provided in the sea wave driven offshore wind power anti-scour device of the application

[0041] Figure 8 The three-dimensional schematic diagram of the connection structure of a section of radial gas pipeline and the sealing piston traction device is provided in the sea wave driven offshore wind power anti-scour device of the application

[0042] Figure 9 The enlarged schematic diagram of the left end part of the figure is provided in the application Figure 8

[0043] Figure 10 The front side view of the connection structure of a section of radial gas pipeline and the sealing piston traction device is provided in the sea wave driven offshore wind power anti-scour device of the application

[0044] Figure 11 The sectional view along the D-D line shown in the figure is provided in the application Figure 10

[0045] In the figure, 1 is a cylinder type foundation, 2 is a transition section, 3 is a tower section, 4 is a short pile, 5 is a sea wave gas collecting bin

[0046] 6 is an anti-scour coating, 7 is a sealing piston traction device, 8 is a radial gas pipeline, 9 is a bionic grass

[0047] 10 is a gas hole

[0048] 11 is a circumferential gas pipeline, and 12 is a seabed

[0049] 81 is a slotted groove​​

[0050] 51, air chamber shell; 52, air inlet pipe; 53, first one-way air inlet valve; 54, one-way air outlet valve; 55, artificial air pipe; 56, second one-way air inlet valve;

[0051] 71, piston connecting slider; 711, traction hole; 712, piston; 72, sealing cover. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0053] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, 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 of the present application.

[0054] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meaning of the above terms in the present patent can be understood according to the specific circumstances.

[0055] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0056] Reference Figures 2 to 11 The present application provides a sea wave driven offshore wind power anti-scouring device, which is arranged on an offshore wind turbine foundation and is used for preventing the offshore wind turbine foundation from being scoured by seawater, and is suitable for various foundation structures such as offshore cylinder foundation, gravity foundation and pile foundation.

[0057] The offshore wind power scouring prevention device of the present application comprises a tower body and a scouring prevention mechanism arranged around the tower body.

[0058] The tower body comprises a cylinder foundation 1, a transition section 2 and a tower section 3.

[0059] The top of the cylinder foundation 1 is provided with the transition section 2.

[0060] The top of the transition section 2 is provided with the cylinder foundation 1.

[0061] The cylinder foundation 1 is embedded in the seabed 12, and the top surface of the cylinder foundation 1 is flush with the surface of the seabed 12.

[0062] The scouring prevention mechanism comprises a sea wave gas collecting bin 5, a plurality of scouring prevention coating films 6, a sealing piston traction device 7, a radial gas pipeline 8, a ring-shaped gas pipeline 11, a gas hole 10 and a short pile 4.

[0063] A plurality of radial gas pipelines 8 are arranged at equal intervals around the circumferential outer side of the tower body from top to bottom.

[0064] Between any two adjacent radial gas pipelines 8, there is arranged one scouring prevention coating film 6.

[0065] The lower end of each radial gas pipeline 8 is fixed to the seabed 12 through one short pile 4.

[0066] The sea wave gas collecting bin 5 is fixed around the circumferential outer side of the tower section 3 of the tower body.

[0067] The bottom of the sea wave gas collecting bin 5 is open.

[0068] The upper end of each radial gas pipeline 8 extends upward into the inner cavity of the hollow sea wave gas collecting bin 5.

[0069] One sealing piston traction device 7 is arranged on each radial gas pipeline 8 and can move up and down.

[0070] Below the sea wave gas collecting bin 5, there is arranged a bottom-opened, hollow scouring prevention coating film accommodating cabin 60.

[0071] The scouring prevention coating film accommodating cabin 60 is used to accommodate a plurality of (for example, six) scouring prevention coating films 6 in a folded state.

[0072] The upper end of each scouring prevention coating film 6 is fixedly connected to the top inner wall of the scouring prevention coating film accommodating cabin 60 or the circumferential outer wall of the tower section 3 on both sides (specifically, two corner positions on both sides) of the upper end.

[0073] The lower end of each anti-scouring coating 6 is fixedly connected with two sealing piston traction devices 7 (specifically, traction holes 711) on two adjacent radial gas pipelines 8, i.e., the two corner portions of the lower end of each anti-scouring coating 6 are connected with two adjacent traction holes 711 of the sealing piston traction devices 7 on the two radial gas pipelines 8.

[0074] It should be noted that when the anti-scouring coating 6 is completely unfolded under the traction of the sealing piston traction device 7, i.e., the anti-scouring coating 6 is laid flat around the cylindrical foundation 1, the plan view of each anti-scouring coating 6 is a fan ring shape, and at this time, the plan view of the whole of the plurality of (for example, six) anti-scouring coatings 6 is a circular ring shape.

[0075] The lower part of the transition section 2 of the tower body is circumferentially provided with a ring-shaped gas pipeline 11;

[0076] The ring-shaped gas pipeline 11 is connected with the lower section of the radial gas pipeline 8 close to the seabed 12;

[0077] A plurality of gas holes 10 are arranged on the pipe wall of the lower section of the radial gas pipeline 8 and the pipe wall of the ring-shaped gas pipeline 11.

[0078] In the present application, the upper end of the radial gas pipeline 8 is fixedly connected (for example, through a connecting rod) with the four peripheral side walls of the cylindrical foundation 1;

[0079] A plurality of short piles 4 are circumferentially and equidistantly arranged on the seabed 12 outside the top of the cylindrical foundation 1;

[0080] The lower end of the radial gas pipeline 8 is in a closed state, and the lower end of the radial gas pipeline 8 is fixed on the seabed 12 through the short pile 4 to prevent movement.

[0081] In the present application, as shown in Figure 5 、 Figure 6 The wave gas collecting bin 5 includes a hollow bin shell 51, a gas inlet pipe 52, and an artificial gas pipeline 55;

[0082] The bin shell 51 is circumferentially arranged outside the tower section 3;

[0083] The bottom of the bin shell 51 is open;

[0084] The top of the bin shell 51 is provided with vertically distributed gas inlet pipes 52;

[0085] The gas inlet pipe 52 is connected with the inner cavity of the bin shell 51;

[0086] The upper ends of a plurality of radial gas delivery pipes 8 are arranged in a circular manner within the inner cavity of the gas chamber shell 51.

[0087] There is a gap between the top of the radial gas delivery pipe 8 and the top inner side of the gas chamber shell 51;

[0088] The upper part of the radial gas transmission pipe 8 is connected to the lower end of the artificial gas transmission pipe 55;

[0089] The upper end of the artificial air supply pipe 55 is open and extends upwards to the sea surface, where it is connected to an external air pump.

[0090] It should be noted that, in this invention, the top of the radial air inlet pipe 8 should be located above the seawater surface to allow it to come into contact with air. The up-and-down movement of the waves compresses the air, continuously drawing it into the radial air inlet pipe 8.

[0091] In practice, the cross-sectional shape of the air chamber shell 51 is annular.

[0092] In practice, an air inlet is provided on the top of the air chamber shell 51;

[0093] The air inlet is connected to the lower end of the air intake pipe 52;

[0094] The upper end of the air intake pipe 52 is open and extends upwards to connect with the external atmospheric environment after reaching the sea surface;

[0095] Furthermore, the top height of the air intake pipe 52 is equal to the top height of the artificial air supply pipe 55;

[0096] In practice, a first one-way intake valve 53 is provided on the intake pipe 52;

[0097] It should be noted that the air intake pipe 52 is also equipped with a first one-way air intake valve 53. External air can only enter the air chamber shell 51 through the first one-way air intake valve 53 and cannot be discharged through the air intake pipe 52.

[0098] It should be noted that the radial gas transmission pipe 8 extends to the top and lower side of the gas chamber shell 51, with a certain gap. Gas can enter the radial gas transmission pipe 8 through the gap, but seawater cannot enter.

[0099] In practice, a one-way exhaust valve 54 is provided on the radial gas transmission pipe 8. The gas inside the gas chamber shell 51 can only be discharged into the radial gas transmission pipe 8 through the one-way exhaust valve 54, and the gas in the radial gas transmission pipe 8 cannot be discharged into the gas chamber shell 51 of the wave gas collection chamber 5.

[0100] Furthermore, the connection position between the artificial gas supply pipe 55 and the radial gas supply pipe 8 is lower than the installation position of the one-way exhaust valve 54 on the radial gas supply pipe 8.

[0101] In practice, a second one-way air inlet valve 56 is installed on the artificial air supply pipe 55;

[0102] It should be noted that in this invention, the second one-way air intake valve 56 only allows gas from the external atmospheric environment to enter the radial air supply pipe 8 through the artificial air supply pipe 55, and does not allow gas in the radial air supply pipe 8 to be discharged outward through the second one-way air intake valve 56.

[0103] In this invention, in specific implementation, such as Figure 2 , Figure 3 As shown, the cylindrical foundation 1 is buried in the seabed 12 by negative pressure sinking, and the top surface of the cylindrical foundation 1 is flush with the surface of the seabed 12.

[0104] In this invention, specifically, a transition section 2 is provided at the top center of the cylindrical foundation 1;

[0105] In practice, the transition section 2 is a prestressed concrete structure used to connect the cylindrical foundation 1 and the upper tower section 3.

[0106] In this invention, specifically, the tower section 3 can be a steel tower or a prestressed concrete tower.

[0107] In this invention, specifically, the overall shape of the tower section 3 is a hollow cylinder.

[0108] In this invention, specifically, the cross-sectional shape of the anti-erosion membrane accommodating chamber 60 is annular.

[0109] In this invention, in specific implementation, such as Figures 2 to 6 As shown, a ring of wave gas collection chambers 5 is fixedly installed around the tower section 3;

[0110] In this invention, specifically, the height of the wave gas collection chamber 5 is located at sea level, that is, the height of its top surface is equal to the sea level (sea level is the average height of the sea).

[0111] In this invention, specifically, the bottom of the wave gas collection chamber 5 is open, and the bottom of the wave gas collection chamber 5 is always submerged in seawater.

[0112] In this invention, specifically, the upper surface of the anti-erosion coating 6 is uniformly provided with multiple biomimetic grasses 9.

[0113] It should be noted that, for this invention, the wave gas collection chamber 5 is required to be corrosion resistant, and the material of the wave gas collection chamber 5 can be stainless steel or aluminum alloy.

[0114] It should be noted that the anti-scouring film 6 and the bionic grass 9 require durability, and the material of the anti-scouring film 6 can be phenolic film and ultra-high molecular weight polyethylene. The material of the bionic grass 9 can be polyethylene (PE) or polyvinyl chloride (PVC) and other high molecular materials. The bionic grass 9 can intercept the sand and gravel on the seabed through large frictional resistance.

[0115] In the present application, the first one-way air inlet valve 53, the second one-way air inlet valve 56, and the one-way air outlet valve 54 are all conventional valves known in the art, which are gas one-way valves for controlling the direction of gas flow and have been widely used in various industries, and thus will not be described here.

[0116] In the present application, the specific implementation is as follows: Figures 7 to 9 One side (for example, the side not facing the tower body) of each radial gas conveying pipe 8 is provided with an opening slot 81 from top to bottom;

[0117] Each sealing piston traction device 7 includes a piston 712 and a piston connecting sliding block 71.

[0118] The inner cavity of each radial gas conveying pipe 8 is sealingly provided with a piston 712.

[0119] One end of the piston connecting sliding block 71 is fixedly connected to one side of the piston 712 after passing through the opening slot 81 on the radial gas conveying pipe 8.

[0120] The other end of the piston connecting sliding block 71 is fixedly connected to the lower ends of the two anti-scouring films 6 located on the left and right sides thereof.

[0121] In specific implementation, the piston 712 is cylindrical in shape.

[0122] In specific implementation, the diameter of the piston 712 is equal to the inner cavity diameter of the radial gas conveying pipe 8.

[0123] In specific implementation, between any two adjacent radial gas conveying pipes 8, a piece of anti-scouring film 6 is arranged, and the two sealing piston traction devices 7 are connected to the lower ends of the anti-scouring film 6 on both sides.

[0124] The other end of the piston connecting sliding block 71 is provided with two traction holes 711.

[0125] The lower ends of each anti-scouring film 6 (specifically, the corner positions, which are the node positions for tensioning, i.e., the corner regions of the lower end edges of the anti-scouring film 6) are respectively provided with a tensioning rope (i.e., a traction rope).

[0126] Two tensioning ropes (i.e. traction ropes) provided on both sides of the lower end of each anti-scouring coating 6 are connected with two traction holes 711 on the opposite side of the sealing piston traction device 7 located on both sides of the anti-scouring coating 6, that is, the tensioning ropes (i.e. traction ropes) are tied in the traction holes 711.

[0127] It should be noted that the two traction holes 711 on each piston connecting sliding block 71 of the sealing piston traction device 7 are respectively connected (i.e. tied together through the tensioning ropes) with the lower end side (i.e. one corner of the lower end) of the two anti-scouring coatings 6 located on both sides of the sealing piston traction device 7. One end of each tensioning rope (i.e. traction rope) is connected with one traction hole 711 on one piston connecting sliding block 71, and the other end of each tensioning rope (i.e. traction rope) is connected with one tensioning node on the lower end side of the anti-scouring coating 6 (i.e. one corner area of the lower end of the anti-scouring coating 6, which is used for tying).

[0128] As mentioned above, the two corner parts of the lower end of each anti-scouring coating 6 are respectively connected with one traction hole 711 of the sealing piston traction device 7 on the adjacent radial gas conveying pipe 8 located on both sides of the anti-scouring coating 6.

[0129] It should be noted that for the present application, the outer side end of the piston connecting sliding block 71 is a bent end, which includes two bent parts and has two traction holes 711 for traction with one end of the two anti-scouring coatings 6. The outer side of the four corners of the anti-scouring coating 6 has a corner (i.e. a node for tensioning, which is the corner area of the edge of the anti-scouring coating 6), which is tied to the traction hole 711 through the tensioning rope (i.e. traction rope) on the corner, to realize the connection of the anti-scouring coating 6 and the traction hole 711, so that the expansion or folding contraction of the anti-scouring coating 6 is driven by the movement of the piston 712. That is, the function of expanding and contracting the membrane cloth of the anti-scouring coating 6 is realized by the piston.

[0130] Specifically, first and second limiting protrusions 811 and 812 are provided on both sides of the top of the slotted groove 81 of the radial gas conveying pipe 8.

[0131] The first and second limiting protrusions 811 and 812 are arranged in parallel with each other.

[0132] One end of the piston connecting sliding block 71 is fixedly connected with one side of the piston 712 after passing through the gap between the first and second limiting protrusions 811 and 812 and the slotted groove 81 on the radial gas conveying pipe 8 in sequence.

[0133] A sealing cover 72 is arranged above the first and second limiting protrusions 811 and 812.

[0134] The sealing cover 72 is clamped with the second limiting protrusion 812.

[0135] It should be noted that the sealing cover 72 covers the first limiting protrusion 811 and the second limiting protrusion 812.

[0136] Further, the second limiting protrusion 812 is provided with a clamping groove 8120 (the positive cross-sectional shape of the clamping groove 8120 is triangular) on the upper side away from the first limiting protrusion 811;

[0137] One side of the sealing cover 72 is provided with a clamping protrusion 720 (i.e. an inner recess buckle) at a position corresponding to the clamping groove 8120;

[0138] The clamping protrusion 720 is clamped with the clamping groove 8120 on the second limiting protrusion 812;

[0139] The sealing cover 72 has an inner recess groove opening downward;

[0140] The first limiting protrusion 811 and the second limiting protrusion 812 are located in the inner recess groove;

[0141] The other side of the sealing cover 72 has a gap with the first limiting protrusion 811;

[0142] The gap is used to accommodate the piston connecting slider 71, and the width of the gap is greater than the width of the piston connecting slider 71. That is, after passing through the piston connecting slider 71, there is still a certain gap in the gap.

[0143] In order to more clearly understand the technical solutions of the present application, the working principle of the present application is described below.

[0144] I. The offshore wind power scouring prevention device of the present application comprises the following sea wave gas collecting bin gas injection working mode:

[0145] As shown in Figure 3 、 Figure 6 When the sea waves produce up and down fluctuations, the sea water in the sea wave gas collecting bin 5 of the present application will fluctuate. When the sea water level in the sea wave gas collecting bin 5 drops, a negative pressure is formed in the sea wave gas collecting bin 5, and under the action of atmospheric pressure, the first one-way inlet valve 53 on the inlet pipe 52 opens, and external gas enters the sea wave gas collecting bin 5 through the inlet pipe 52.

[0146] When the sea water level in the sea wave gas collecting bin 5 rises, the pressure in the sea wave gas collecting bin 5 rises, and the gas in the sea wave gas collecting bin 5 is squeezed into the radial gas conveying pipeline 8 through the one-way exhaust valve 54. Thus, with the continuous fluctuation of the sea waves, a continuous supply of external gas is delivered to the radial gas conveying pipeline 8.

[0147] II. As shown in Figure 2 、 Figure 3As shown, the radial gas pipeline 8 extends from top to bottom along the tower section 3, the transition section 2 and the cylinder foundation 1 to the seabed 12, and is evenly distributed with six pipelines circumferentially and fixed on the tower body in sequence. The top of the radial gas pipeline 8 is located at the upper part of the inner cavity of the sea wave gas collection bin 5, as shown in Figure 3 、 Figure 4 As shown. The tail of the radial gas pipeline 8 is in a closed state, and the tail is fixed on the seabed 12 by the short pile 4 to prevent it from moving.

[0148] A plurality of controllable gas holes 10 are also provided on the radial gas pipeline 8 near the seabed position, and the staff can remotely control the opening and closing of the gas holes 10 on the sea surface. At the same time, as shown in Figure 4 A ring-shaped gas pipeline 11 connected with the radial gas pipeline 8 is also provided near the seabed 12, and a plurality of controllable gas holes 10 are also provided on the ring-shaped gas pipeline 11.

[0149] It should be noted that the controllable switch installed on the gas hole 10 is a remote control switch valve, that is, a wireless remote control valve, which is a mature and well-known conventional valve in the prior art, and will not be described here.

[0150] In combination with the above structural design, the offshore wind power anti-scouring device of the present application includes the following cylinder foundation seabed anti-scouring working modes:

[0151] When the sea wave gas collection bin 5 is running (i.e. gas injection), when a large amount of gas continuously enters the radial gas pipeline 8, the gas will continuously move to the deep sea bottom (i.e. the seabed 12 direction) along the gas pipeline 8 and the ring-shaped gas pipeline 11, and when encountering the gas hole 10, the gas will leak out of the pipeline through the gas hole 10. Due to the bionic grass 9 around the gas hole 10, the gas will be dispersed into many tiny bubbles under the disturbance of the bionic grass 9. During the rising process of these small bubbles from the sea bottom, an upward buoyancy zone B1 will be formed, and the buoyancy of the B1 zone will interfere with the formation of the vortex A3 in the vortex zone above the seabed 12, avoiding the scouring of the vortex A3 to the seabed 12 around the cylinder foundation 1, and on the other hand, it also prevents the jet A2 from the front direction of the tower section 3, thereby avoiding the scouring of the seabed 12 from two aspects, so as to effectively avoid the structure of the cylinder foundation 1 exposed outside the seabed 12, and ensure the safety and stability of the structure of the cylinder foundation 1.

[0152] Three, as shown in Figure 2 、 Figure 3As shown, below the wave gas collection chamber 5, there is a container (i.e., an anti-erosion membrane receiving chamber 60). Inside the container, there is a ring of stacked anti-erosion membranes 6 (specifically, six anti-erosion membranes 6 arranged in a ring). One end (i.e., the upper end) of the anti-erosion membrane 6 is fixed to the anti-erosion membrane receiving chamber 60, and the other end (i.e., the two lower corners) is fixed to two adjacent sealed piston traction devices 7 (specifically, two traction holes 711 on opposite sides of the two adjacent sealed piston traction devices 7).

[0153] The offshore wind power anti-scour device of the present invention includes the following anti-scour membrane deployment construction mode:

[0154] When the anti-erosion covering membrane 6 is deployed, first control the air holes 10 on the radial gas pipeline 8 and the circumferential gas pipeline 11 to be closed.

[0155] Then, towards Figure 6 A large amount of high-pressure gas is injected into the artificial gas transmission pipe 55 shown. After the high-pressure gas enters the radial gas transmission pipe 8, it can push the piston 712 in the sealing piston traction device 7, thereby allowing the sealing piston traction device 7 to move downward on the radial gas transmission pipe 8. This causes one end of the anti-erosion membrane 6 to slide downward along the radial gas transmission pipe 8 and unfold, achieving the goal of laying the anti-erosion membrane 6 around the main body of the offshore wind turbine foundation. The final unfolded effect of the anti-erosion membrane 6 is shown in the figure below. Figure 4 As shown.

[0156] It should be noted that, for this invention, manual application is used at this time. Figure 6 High-pressure gas is injected into the artificial gas supply pipe 55 and the radial gas supply pipe 8 connected to the artificial gas supply pipe 55, instead of using the wave gas collection chamber 5 for gas injection, because the gas pressure generated by the waves is relatively small and insufficient to drive the piston 712 in the sealed piston traction device 7 to move in the radial gas supply pipe 8.

[0157] In practice, this can be done manually using a high-pressure air pump. The outlet of the high-pressure air pump is connected to the top opening of the manual air supply pipe 55, and the air is supplied to the pipe via the high-pressure air pump. Figure 6 High-pressure gas is injected into the artificial gas supply pipe 55 and the radial gas supply pipe 8 connected to the artificial gas supply pipe 55.

[0158] IV. The offshore wind power anti-scour device of the present invention includes the following anti-scour film replacement working mode:

[0159] Over time, when the original anti-erosion membrane 6 is eroded by seawater and needs to be replaced, it is also very simple. First, the vents 10 on the radial gas pipeline 8 and the circumferential gas pipeline 11 are kept closed;

[0160] Then, negative pressure is drawn in the artificial gas pipe 55, under the action of the negative pressure, the piston 712 in the sealing piston traction device 7 is pushed, the sealing piston traction device 7 at the tail of the radial gas pipeline 8 moves upwards along the radial gas pipeline 8 to the direction of the sea surface (that is, away from the seabed 12, the sea surface is above the seabed 12);

[0161] Then, the sealing piston traction device 7 drives the whole anti-scouring membrane 6 to shrink and fold, and finally shrinks into the anti-scouring membrane containing cabin 60.

[0162] It should be noted that for the present application, for the anti-scouring membrane 6 that shrinks into the anti-scouring membrane containing cabin 60, the anti-scouring membrane 6 can be replaced manually by the staff on the sea surface. Therefore, the present application can realize the automatic deployment of the anti-scouring membrane 6, and also realizes the automatic recovery and replacement, which is very convenient and simple.

[0163] Specifically, negative pressure can be drawn into the artificial gas pipe 55 manually, and a suction pump is used, the suction port of the suction pump is connected with the top opening of the artificial gas pipe 55, and the gas in the artificial gas pipe 55 and the radial gas pipeline 8 connected with the artificial gas pipe 55 is drawn out to the external atmospheric environment by the suction pump. Figure 6 The gas in the artificial gas pipe 55 and the radial gas pipeline 8 connected with the artificial gas pipe 55 is drawn out to the external atmospheric environment.

[0164] Five, for the radial gas pipeline 8 as shown in Figures 2 to 11 The radial gas pipeline 8 needs to ensure that it has sealing property, which can ensure that the gas flows in the pipeline without leakage. On the other hand, it also needs to ensure that the sealing piston traction device 7 can slide in the radial gas pipeline 8.

[0165] Figure 7 It is a sectional view of the radial gas pipeline 8 and the sealing piston traction device 7. For the present application, a pipeline air-tight structure is arranged thereon, which includes the piston 712, the radial gas pipeline 8, the piston connecting sliding block 71 and the sealing cover 72. The radial gas pipeline 8 is provided with a slotted groove 81 at the top, so that the piston 712 inside the radial gas pipeline 8 can drive the piston connecting sliding block 71 outside the pipeline to move in the slotted groove 81 under the push of external pressure (such as gas pressure), thereby realizing the function of moving the piston connecting sliding block 71 outside the pipeline.

[0166] In order to avoid air leakage, the piston connecting sliding block 71 is arranged in a bent shape and extends to the outside. At this time, the sliding problem of the piston connecting sliding block has been solved, but in view of the fact that the radial gas conveying pipeline 8 has a long slotted groove 81, in order to ensure good air tightness. Therefore, a sealing cover 72 with a clamping protrusion 720 (i.e. an inner recess buckle) is additionally arranged on the top of the slotted groove 81, and the clamping protrusion 720 of the sealing cover 72 is tightly buckled with the second limiting block 812 on the top of the slotted groove 81, so as to realize air tightness, and the other side of the sealing cover 72 is suspended to form a small gap (i.e. there is a gap between the second limiting block 811), so that the piston connecting sliding block 71 can slide through the gap, and the air tightness can also be ensured.

[0167] Through the above scheme, the air tightness of the whole structure can be ensured, and the piston connecting sliding block 71 can slide in the radial gas conveying pipeline 8, so as to realize the function that the traction hole 711 drives the anti-erosion coating 6 to expand around the cylindrical foundation 1.

[0168] Based on the offshore wind power anti-erosion device driven by sea waves provided by the present application, the present application further provides an implementation method of the offshore wind power anti-erosion device driven by sea waves, comprising the following steps:

[0169] Step S1, integrally assemble the cylindrical foundation 1, the transition section 2 and the tower section 3 on the coast to obtain a tower body, and then install the anti-erosion mechanism around the tower body, wherein the anti-erosion mechanism comprises a sea wave gas collecting bin 5, an anti-erosion coating 6 (in an initial state of stacking) provided with a bionic grass 9, a sealing piston traction device 7, a radial gas conveying pipeline 8 and a ring-shaped gas conveying pipeline 11;

[0170] It should be noted that this step S1 is completed on the coast.

[0171] Step S2, integrally float the tower body and the installed anti-erosion mechanism, and then sink and install the whole to the destination (i.e. the seabed where the offshore wind power foundation is needed to be installed); after the sinking and installation of the cylindrical foundation 1 is completed, a plurality of short piles 4 around the cylindrical foundation 1 are sequentially driven into the seabed 12, which are used to fix the tail of the radial gas conveying pipeline 8 to prevent it from moving; see Figure 2

[0172] Step S3, start the expansion and installation construction of the anti-erosion coating 6, so that the anti-erosion coating 6 is laid around the cylindrical foundation 1;

[0173] ​Specific operation is: first control air hole 10 in the closed state, then inject a large number of high pressure gas into the artificial gas pipe 55, high pressure gas into the radial gas pipeline 8, push the sealing piston traction device 7 in radial gas pipeline 8 along the radial gas pipeline 8 down, so as to drive the lower end of the anti scouring membrane 6 along the radial gas pipeline 8 down sliding expansion, realize the anti scouring membrane 6 laid in the target of the peripheral of the cylinder foundation 1; The final expansion of the anti scouring membrane 6 is shown in the effect picture as Figure 4

[0174] Step S4, start the sea wave gas collecting bin 5, through the sea wave gas collecting bin 5 and the radial gas pipeline 8 and the ring gas pipeline 11 to the sea bed 12 surface transport atmosphere, thereby interfering with the formation of vortex A3 at the vortex zone above the sea bed 12, and preventing the jet A2 in the front direction of the tower section 3, avoid the sea bed 12 around the peripheral of the cylinder foundation 1 is scoured.

[0175] In step S4, the air hole 10 on the radial gas pipeline 8 and the ring gas pipeline 11 is in the open state.

[0176] It should be noted that when the sea wave gas collecting bin 5 is running (i.e. gas injection), with the sea waves fluctuating up and down, the sea wave gas collecting bin 5 in the device of the application can convert the sea wave energy into atmospheric pressure, which can continuously transport the atmosphere through the radial gas pipeline 8 to the sea bed 12 surface (i.e. seabed). In the sea bed 12 surface (i.e. seabed), the gas flows out through the air hole 10 on the radial gas pipeline 8 and the ring gas pipeline 11, and under the disturbance of the bionic grass 9, the gas is dispersed into tiny bubbles. Small bubbles will form upward buoyancy zone B1 in the process of rising. The upward buoyancy of B1 zone can interfere with the formation of vortex A3 at the vortex zone above the sea bed 12. On the other hand, it can also prevent the downward jet A2 in front of the tower section 3. Moreover, the region B1 can create an excellent living environment for fish. The water flow in this area is not only rich in oxygen, but also complex and diverse. The activities of fish further disturb the downward jet A2 region and the vortex A3 region, further reducing the risk of scouring the sea bed 12 around the peripheral of the cylinder foundation 1.

[0177] ​It should be noted that in the present application, the anti-scouring coating 6 belongs to passive protection measures; the upward flowing gas of the air hole 10 forms bubbles to prevent the jet flow, which belongs to active anti-scouring measures. In actual application, it is found through testing that the anti-scouring coating 6 cannot play a good anti-scouring role. With the passage of time, the anti-scouring effect of the anti-scouring coating 6 will become smaller and smaller. Therefore, on the basis of setting the anti-scouring coating 6 for passive protection, the present application further sets the radial gas conveying pipe 8 and the annular gas conveying pipe 11, and the bubbles formed by the upward flowing gas of the air hole 10 of the radial gas conveying pipe 8 and the annular gas conveying pipe 11 prevent the jet flow, so that the anti-scouring effect on the cylinder foundation and the surrounding seabed can be better realized through the combination of active and passive measures.

[0178] In the present application, specifically, after step S4, the following steps are further included:

[0179] Step S5, with the passage of time, when the anti-scouring coating 6 is eroded in seawater and needs to be replaced, first, the air holes 10 on the radial gas conveying pipe 8 and the annular gas conveying pipe 11 are controlled to be in a closed state; then, negative pressure is drawn in the artificial gas conveying pipe 55, and under the action of the negative pressure, the sealing piston traction device 7 located at the tail of the radial gas conveying pipe 8 moves upwards along the radial gas conveying pipe 8 in the direction of the sea surface (i.e. away from the seabed 12, and the sea surface is located above the seabed 12); then, the sealing piston traction device 7 drives the anti-scouring coating 6 to shrink and fold as a whole, and finally, the anti-scouring coating 6 is shrunk into the anti-scouring coating containing cabin 60.

[0180] After the anti-scouring coating 6 is shrunk and folded as a whole, the anti-scouring coating 6 can be replaced by workers manually on the sea surface.

[0181] Compared with the prior art, the offshore wind power anti-scouring device driven by sea waves and the implementation method provided by the present application have the following beneficial effects:

[0182] 1. The present application can effectively avoid the seabed 12 around the cylinder foundation 1 from being scoured.

[0183] The present application analyzes the causes of the formation of the horseshoe-shaped scour pit around the offshore foundation, and finds that the downward jet flow A2 in front of the tower and the vortex A3 on the seabed are the main causes of the formation of the scour pit. In the face of this problem, the present application proposes a device for preventing offshore wind power from being scoured by using sea wave energy. First, a sea wave gas collecting bin is proposed, which can convert the up-and-down oscillation of sea wave energy into atmospheric pressure, and the atmospheric pressure can continuously convey air to the seabed through the gas conveying pipe.

[0184] At the seabed, the gas flows out through the gas holes, and under the disturbance of the bionic grass 9, the gas is dispersed into tiny bubbles, which generate upward buoyancy zone B1 during the rising process. The buoyancy of the B1 zone can interfere with the formation of the vortex zone A3, avoiding the scouring of the seabed around the cylinder foundation 1 by the A3 vortex. On the other hand, the B1 zone can also prevent the downward jet A2 in front of the tower section 3, thereby avoiding the scouring of the seabed from two aspects.

[0185] The device of the present application does not require any other energy assistance, and can be driven by the continuous wave energy in the ocean to operate the whole device. It is not only environmentally friendly, efficient and energy-saving, but also has remarkable anti-scouring effect. Starting from the essential reason of scouring, the upward buoyancy B1 zone is formed to actively protect.

[0186] 2、The present application can form the upward buoyancy zone B1 around the fan foundation (i.e. the tower body) through the wave gas collection bin, and the gas in the zone is dispersed into tiny bubbles by the bionic grass 9. Therefore, a good fish living environment is created for the zone, the water flow in the zone is not only rich in oxygen, but also complex and diverse, which can attract more fish to the zone. The activities of the fish further disturb the formation of the downward jet A2 zone and the vortex A3 zone, further reducing the risk of scouring of the seabed 12 around the cylinder foundation 1. Therefore, the device embodies the principle of harmonious coexistence and mutual benefit between man and nature.

[0187] That is to say, for the present application, in view of the realistic problem of the scouring of the seabed around the offshore wind turbine foundation, a wave gas collection bin is proposed, which can convert the up-and-down oscillation of the sea wave into atmospheric pressure, and can continuously transport the atmosphere to the seabed, thereby forming the upward buoyancy zone B1. The B1 zone can avoid the formation of vortex on one hand, and can also prevent the downward jet on the other hand, thereby realizing the active anti-scouring measure of the foundation seabed. And the B1 zone can create a good living environment for fish.

[0188] 3、The present application also proposes a very convenient bionic grass film installation scheme. In the active anti-scouring scheme, a passive anti-scouring scheme is also supplemented, and the two schemes are used together to improve the anti-scouring effect.

[0189] When the traditional bionic grass film is installed, the maintenance personnel need to dive to the seabed to install the anti-scouring film, and after the film is damaged, the personnel need to dive again to replace the film, which is time-consuming and laborious.

[0190] Therefore, the application provides a very convenient and fast bionic grass film installation and replacement scheme. When the anti-erosion film 6 needs to be installed on the foundation, first, the anti-erosion film 6 is stacked as a whole and installed below the sea wave gas collecting bin 5. One end of the anti-erosion film 6 is fixed on the tower drum section 3, and the other end is fixed on the sealing piston traction device 7. High-pressure gas is injected into the radial gas pipeline 8. Under the pushing action of the high-pressure gas, the piston 712 in the sealing piston traction device 7 is pushed by the external pressure (such as gas pressure) and drives the anti-erosion film 6 to unfold in the water, thereby completing the installation of the anti-erosion film.

[0191] When the anti-erosion film 6 needs to be replaced due to erosion in seawater, it is also very simple to perform negative pressure extraction on the radial gas pipeline. Under the action of negative pressure, the sealing piston traction device 7 can move towards the sea surface along the radial gas pipeline 8, thereby driving the anti-erosion film 6 to fold and then manually replacing the anti-erosion film 6 on the sea surface.

[0192] Therefore, for the application, in the face of the problem of difficult installation and replacement of the traditional bionic grass anti-erosion film, a passive anti-erosion scheme based on atmospheric pressure automatic installation and replacement of the film is proposed. By injecting high-pressure gas into the pipeline, the film is driven to unfold in the water, thereby completing the installation of the film. When the film needs to be replaced, negative pressure is extracted from the gas pipeline, thereby driving the film to fold and fold, and finally manually replacing the film on the sea surface.

[0193] Therefore, by applying the device of the application, there are a plurality of technical advantages: (1) The worker does not need to dive to the seabed, but only needs to control the gas pressure on the sea surface to realize the unfolding and installation of the anti-erosion film or the recycling and replacement. (2) The anti-erosion film 6 in the device can automatically unfold and protect, and can automatically recycle and replace. (3) Without using other external force, only by gas pressure, the installation of the anti-erosion film can be realized, which is energy-saving and efficient. (4) The radial gas pipeline 8 can not only be used for gas transmission, but also be used as a running guide rail for the anti-erosion film 6, realizing multiple uses of one device.

[0194] 4, The application can not only ensure the gas tightness of the entire radial gas pipeline 8 in water, but also ensure the function of the piston 712 inside driving the piston connecting sliding block 71 to slide outside the pipeline, and finally realize the unfolding of the anti-erosion film 6 by gas pressure.

[0195] The above only describes the preferred embodiments of the application, and it should be noted that those skilled in the art can make a number of improvements and refinements without departing from the principles of the application, and these improvements and refinements should also be considered as the protection scope of the application.

Claims

1. A sea wave driven offshore wind power scouring prevention device, characterized in that, The application relates to a tower body and an anti-scouring mechanism arranged on the periphery of the tower body. The tower body comprises a cylinder foundation (1), a transition section (2) and a tower cylinder section (3). The top of the cylinder foundation (1) is provided with the transition section (2). The top of the transition section (2) is provided with the cylinder foundation (1). The cylinder foundation (1) is embedded in a seabed (12), and the top surface of the cylinder foundation (1) is flush with the surface of the seabed (12). The anti-scouring mechanism comprises a sea wave gas collecting bin (5), a plurality of anti-scouring films (6), a sealing piston traction device (7), a radial gas pipeline (8), a ring-shaped gas pipeline (11), a gas hole (10) and a short pile (4). A plurality of radial gas pipelines (8) are arranged on the circumferential outer side of the tower body in an equal interval from top to bottom. An anti-scouring film (6) is arranged between any two adjacent radial gas pipelines (8). The lower end of each radial gas pipeline (8) is fixed on the seabed (12) through a short pile (4). The sea wave gas collecting bin (5) is fixed on the circumferential outer side of the tower cylinder section (3) of the tower body in a surrounding manner. The bottom of the sea wave gas collecting bin (5) is open. The upper end of each radial gas pipeline (8) extends into the inner cavity of the hollow sea wave gas collecting bin (5) in an upward manner. A sealing piston traction device (7) is arranged on each radial gas pipeline (8) in a movable manner. A bottom-opened hollow anti-scouring film accommodating cabin (60) is arranged below the sea wave gas collecting bin (5) in a surrounding manner. The anti-scouring film accommodating cabin (60) is used for accommodating the plurality of anti-scouring films (6) in a folded state. The upper end of each anti-scouring film (6) is fixedly connected to the top inner wall of the anti-scouring film accommodating cabin (60) or the circumferential outer wall of the tower cylinder section (3). The lower end of each anti-scouring film (6) is fixedly connected to the two sealing piston traction devices (7) on the two adjacent radial gas pipelines (8). A ring-shaped gas pipeline (11) is arranged on the lower circumferential outer side of the transition section (2) of the tower body in a surrounding manner. The ring-shaped gas pipeline (11) is communicated with the lower section of the radial gas pipeline (8) close to the seabed (12). A plurality of gas holes (10) are arranged on the pipe wall of the lower section of the radial gas pipeline (8) and the pipe wall of the ring-shaped gas pipeline (11).

2. The sea wave driven offshore wind power scour prevention device according to claim 1, characterized in that, The upper end pipe wall of the radial gas pipeline (8) is fixedly connected to the circumferential side wall of the cylinder foundation (1). A plurality of short piles (4) are arranged on the seabed (12) on the circumferential outer side of the top of the cylinder foundation (1) in an equal interval in a surrounding manner. The lower end tail of the radial gas pipeline (8) is in a closed state, and the lower end tail of the radial gas pipeline (8) is fixed on the seabed (12) through the short pile (4).

3. The sea wave driven offshore wind power scour prevention device according to claim 1, characterized in that, The sea wave gas collecting bin (5) comprises a hollow gas bin shell (51), an air inlet pipe (52) and an artificial gas pipeline (55). The gas bin shell (51) is arranged on the circumferential outer side of the tower cylinder section (3) in a surrounding manner. The bottom of the gas bin shell (51) is open. The top of the gas bin shell (51) is provided with the vertically distributed air inlet pipe (52). The air inlet pipe (52) is communicated with the inner cavity of the gas bin shell (51). The inner cavity of the air chamber shell (51) is provided with the upper end portions of a plurality of radial gas conveying pipes (8) in a surrounding manner; The top portion of the radial gas conveying pipe (8) has a gap with the inner side of the top portion of the air chamber shell (51); The upper portion of the radial gas conveying pipe (8) is connected with the lower end of the artificial gas conveying pipe (55); The upper end of the artificial gas conveying pipe (55) is open and extends upward to the sea surface and is connected with the external air charging pump; The top portion of the air chamber shell (51) is provided with an air inlet; The air inlet is connected with the lower end of the air inlet pipe (52); The upper end of the air inlet pipe (52) is open and extends upward to the sea surface and is connected with the external atmosphere.

4. The sea wave driven offshore wind power scour prevention device according to claim 3, characterized in that, The cross-sectional shape of the air chamber shell (51) is circular ring shape; And / or, The top portion height of the air inlet pipe (52) is equal to the top portion height of the artificial gas conveying pipe (55); And / or, The air inlet pipe (52) is provided with a first one-way air inlet valve (53); And / or, The radial gas conveying pipe (8) is provided with a one-way air outlet valve (54); The connection position of the artificial gas conveying pipe (55) and the radial gas conveying pipe (8) is lower than the installation position of the one-way air outlet valve (54) on the radial gas conveying pipe (8); And / or, The artificial gas conveying pipe (55) is provided with a second one-way air inlet valve (56); And / or, The top surface of the cylinder type foundation (1) is flush with the surface of the seabed (12); And / or, The top surface of the sea wave air collecting chamber (5) is located at the sea level; And / or, The bottom of the sea wave air collecting chamber (5) is open, and the bottom of the sea wave air collecting chamber (5) is always submerged in seawater; And / or, The upper surface of the scour protection membrane (6) is uniformly provided with a plurality of bionic grasses (9).

5. The sea wave driven offshore wind power scour prevention device according to claim 1, wherein, One side of each radial gas conveying pipe (8) is provided with a slotted groove (81) from top to bottom; Each sealing piston traction device (7) respectively comprises a piston (712) and a piston connecting sliding block (71); The inner cavity of each radial gas conveying pipe (8) is sealingly provided with a piston (712); One end of the piston connecting sliding block (71) is fixedly connected with one side of the piston (712) after penetrating through the slotted groove (81) on the radial gas conveying pipe (8); The other end of the piston connecting sliding block (71) is fixedly connected with the lower ends of the two scour protection membranes (6) located on the left and right sides thereof.

6. The sea wave driven offshore wind power scour prevention device according to claim 5, wherein, The piston (712) is in cylindrical shape; And / or, The diameter of the piston (712) is equal to the inner cavity diameter of the radial gas conveying pipe (8); And / or, A scour protection membrane (6) is arranged between any two adjacent radial gas conveying pipes (8), and the two sealing piston traction devices (7) are connected with the lower ends of the two scour protection membranes (6) on both sides; The other end of the piston connecting sliding block (71) is provided with two traction holes (711); The lower ends of each scour protection membrane (6) are provided with a tensioning rope on both sides; The two tensioning ropes provided on the lower ends of each scour protection membrane (6) are connected with the two traction holes (711) on the opposite side of the two sealing piston traction devices (7) located on both sides of the scour protection membrane (6).

7. The sea wave driven offshore wind power scour prevention device according to claim 5, wherein, First limiting block (811) and second limiting block (812) are arranged on both sides of the top of the slotted groove (81) of the radial gas pipeline (8); First limiting block (811) and second limiting block (812) are arranged on both sides of the top of the slotted groove (81) of the radial gas pipeline (8); One end of the piston connecting sliding block (71) passes through the gap between the first limiting block (811) and the second limiting block (812) and the slotted groove (81) on the radial gas pipeline (8) in sequence, and is fixedly connected with one side of the piston (712); Sealing cover (72) is arranged above the first limiting block (811) and the second limiting block (812); The sealing cover (72) is clamped with the second limiting block (812); The second limiting block (812) is provided with a clamping groove (8120) on the upper side away from the first limiting block (811); The side of the sealing cover (72) is provided with a clamping protrusion (720) at a position corresponding to the clamping groove (8120); The clamping protrusion (720) is clamped with the clamping groove (8120) on the second limiting block (812); The sealing cover (72) has an inward recess with an opening downward; The first limiting block (811) and the second limiting block (812) are located in the inward recess; The other side of the sealing cover (72) has a gap with the first limiting block (811).

8. The sea wave driven offshore wind power scour prevention device according to any one of claims 1 to 7, characterized in that, The sea wave gas collecting bin gas injection working mode includes the following: When the sea water level in the sea wave gas collecting bin (5) drops, negative pressure is formed in the sea wave gas collecting bin (5), under the action of atmospheric pressure, the first one-way inlet valve (53) on the gas inlet pipe (52) opens, and external gas enters the sea wave gas collecting bin (5) through the gas inlet pipe (52); When the sea water level in the sea wave gas collecting bin (5) rises, the pressure in the sea wave gas collecting bin (5) rises, and the gas in the sea wave gas collecting bin (5) is extruded to enter the radial gas pipeline (8) through the one-way exhaust valve (54), thereby, with the continuous fluctuation of the sea wave, a continuous supply of external gas is transported to the radial gas pipeline (8); And / or, The cylinder type foundation peripheral seabed scouring prevention working mode includes the following: When the sea wave gas collecting bin (5) is running, a large amount of gas continuously enters the radial gas pipeline (8), and the gas moves continuously along the gas pipeline (8) and the circumferential gas pipeline (11) to the seabed (12), when encountering the gas hole (10), the gas leaks out of the pipeline through the gas hole (10), because the bionic grass (9) is arranged around the gas hole (10), under the disturbance of the bionic grass (9), the gas is dispersed into many very small bubbles, these small bubbles form an upward buoyancy zone B1 in the process of rising from the seabed, the buoyancy of the B1 area, on the one hand, interferes with the formation of vortex A3 in the vortex area above the seabed (12), avoids the scouring of the vortex A3 to the seabed (12) around the cylinder type foundation (1), on the other hand, prevents the downward jet A2 in front of the tower section (3), thereby avoiding the scouring of the seabed (12) from two aspects, effectively avoiding the structure of the cylinder type foundation (1) exposed outside the seabed (12), ensuring the safety and stability of the structure of the cylinder type foundation (1).

9. A method of implementing the sea wave driven offshore wind power scour protection device according to any one of claims 1 to 8, characterized in that, The method includes the following steps: Step S1, assemble the cylinder foundation (1), transition section (2) and tower section (3) integrally at the coast to obtain the tower body, and then install the anti-scour mechanism around the tower body, the anti-scour mechanism including a sea wave gas collection bin (5), an anti-scour coating (6) with bionic grass (9), a sealing piston traction device (7), a radial gas pipeline (8) and a ring-shaped gas pipeline (11); Step S2, integrally float the tower body and the installed anti-scour mechanism, and after floating to the destination, integrally sink and install; after the sinking and installation of the cylinder foundation (1) are completed, a plurality of short piles (4) around the cylinder foundation (1) are sequentially driven into the seabed (12) to fix the tail of the radial gas pipeline (8) and prevent it from moving; Step S3, start the deployment and installation construction of the anti-scour coating (6) to lay the anti-scour coating (6) around the cylinder foundation (1); Step S4, start the sea wave gas collection bin (5), and transport atmospheric air to the surface of the seabed (12) through the sea wave gas collection bin (5), the radial gas pipeline (8) and the ring-shaped gas pipeline (11), thereby interfering with the formation of vortex A3 at the vortex zone above the seabed (12) and stopping the jet flow A2 in the forward direction of the tower section (3), to avoid the scouring of the seabed (12) around the cylinder foundation (1).

10. The method for implementing the sea wave driving device according to claim 9, wherein, Step S3 specifically includes the following operations: First, control the air hole (10) to be in a closed state, then inject a large amount of high-pressure gas into the artificial gas pipeline (55), and after the high-pressure gas enters the radial gas pipeline (8), it pushes the sealing piston traction device (7) in the radial gas pipeline (8) to move downward along the radial gas pipeline (8), thereby driving the lower end of the anti-scour coating (6) to slide and deploy downward along the radial gas pipeline (8), achieving the goal of laying the anti-scour coating (6) around the cylinder foundation (1); In step S4, the air holes (10) on the radial gas pipeline (8) and the ring-shaped gas pipeline (11) are in an open state; After step S4, the following steps are further included: Step S5, when the anti-scour coating (6) needs to be replaced due to erosion in seawater, first, control the air holes (10) on the radial gas pipeline (8) and the ring-shaped gas pipeline (11) to be in a closed state; then, negative pressure is applied to the artificial gas pipeline (55), and under the action of the negative pressure, the sealing piston traction device (7) at the tail of the radial gas pipeline (8) moves upward along the radial gas pipeline (8) in the direction of the sea surface; then, the sealing piston traction device (7) drives the anti-scour coating (6) to fold and shrink integrally, and finally shrinks into the anti-scour coating containing cabin (60).

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