Sliding subsea booster station device and offshore wind power system

Abstract

The application relates to the technical field of underwater booster stations, and discloses a sliding underwater booster station device and an offshore wind power system. The sliding underwater booster station device comprises an anti-sinking plate, the top surface of the anti-sinking plate is provided with a first booster station and a guide rail mechanism, a sliding mechanism is arranged on a second booster station, the sliding mechanism is in sliding fit connection with the guide rail mechanism, one side of the second booster station is adapted to be connected with a first cable of a floating wind turbine, the other side of the second booster station is adapted to be connected with the first booster station through a damping member, one end of a fixing mechanism is adapted to be fixed in a sleeve, and the other end of the fixing mechanism is adapted to be arranged on a seabed. In the sliding process of the second booster station on the guide rail mechanism, the damping member can apply certain damping force to the second booster station to buffer the moving speed of the second booster station, thereby releasing the pulling force of the first cable, reducing the fatigue damage at a fatigue hot spot, effectively avoiding the fracture phenomenon at the fatigue hot spot, and improving the safety of the sliding underwater booster station device.

Description

Technical Field

[0001] This invention relates to the field of subsea booster station technology, specifically to a sliding subsea booster station device and an offshore wind power system. Background Technology

[0002] A step-up substation is a complete system that transforms the voltage of passing electrical charges. Its main purpose is to increase voltage, thereby reducing line current and minimizing energy loss.

[0003] In existing technologies, fixed offshore substations require separate foundations. The foundation of an offshore substation typically includes steel pipe piles and a jacket structure. During the installation of an offshore substation, the steel pipe piles are usually driven into the seabed to a certain depth first, and then the legs of the jacket structure are fitted onto the steel pipe piles one by one. Since the jacket structure needs to extend from the seabed to the sea surface, as the development of offshore wind power stations gradually moves into deeper waters, the wind and wave environment in deep waters is harsh. Under extreme wind and wave loads, floating wind turbines will experience significant reciprocating motion. As the floating wind turbines move with the waves, they will cause significant tension on the cables, making the connection between the cables and the substation a fatigue hotspot, resulting in significant cumulative fatigue damage, which can lead to fracture at the fatigue hotspot. Summary of the Invention

[0004] In view of this, the present invention provides a sliding subsea booster station device and an offshore wind power system to solve the problem that the floating wind turbine will generate a large tension on the cable during the movement with the waves, making the connection between the cable and the booster station a fatigue hotspot, resulting in large cumulative fatigue damage, and eventually leading to fracture at the fatigue hotspot.

[0005] In a first aspect, the present invention provides a sliding subsea booster station device, comprising:

[0006] An anti-sinking plate, the top surface of which is provided with a first booster station and a guide rail mechanism, the first booster station being fixedly located on one side of the guide rail mechanism along its length;

[0007] The second booster station is equipped with a sliding mechanism, which is slidably connected to the guide rail mechanism. One side of the second booster station is adapted to be connected to the first cable of the floating wind turbine, and the other side of the second booster station is adapted to be connected to the first booster station through a damping component.

[0008] The fixing mechanism has one end adapted to fix the anti-sinking plate and the other end adapted to be fixed on the seabed.

[0009] Beneficial Effects: By installing a sliding mechanism on the second booster station, it can slide along the length of the guide rail mechanism. The first and second booster stations are connected by a damping component, which provides a buffering effect during the sliding process. When the floating wind turbine moves with the waves, it pulls the first cable. When the first cable is subjected to external loads, it pulls the second booster station, causing its sliding mechanism to slide on the guide rail mechanism. During this sliding process, the damping component applies a damping force to the second booster station, buffering its movement speed and releasing the tension in the first cable. This reduces fatigue damage at fatigue hotspots, effectively preventing breakage at these points, minimizing economic losses, and improving the safety of the sliding underwater booster station device. Furthermore, by installing anti-sinking plates and fixing mechanisms, the first and second booster stations are placed underwater, eliminating the need for steel pipe frames and guide frames at sea. This saves steel, simplifies installation, and reduces costs.

[0010] In one optional embodiment, the guide rail mechanism includes a first slide rail and a second slide rail. The first slide rail is fixed to the top surface of the anti-sinking plate, and the second slide rail is covered on the first slide rail. A groove is formed between the first slide rail and the second slide rail. The sliding mechanism is disposed in the groove and can slide along the groove.

[0011] Beneficial effects: The sliding mechanism is slidably set in the trough by the first and second slide rails, so that the second booster station can slide along the length of the guide rail mechanism. At the same time, setting the sliding mechanism in the trough, that is, the first and second slide rails limit the sliding mechanism, can prevent the second booster station from floating upward by the buoyancy of the seawater, and ensure that the second booster station works normally underwater.

[0012] In one alternative implementation, the guide rail mechanism comprises two sets, which are arranged at a distance from each other.

[0013] Beneficial effects: By setting up two sets of guide rail mechanisms, the sliding mechanisms on opposite sides of the second booster station are set within the guide rail mechanisms, ensuring that the second booster station can slide smoothly on the guide rail mechanisms during the sliding process. At the same time, by limiting the two sides of the second booster station through the two sets of guide rail mechanisms, the second booster station is guaranteed to operate stably underwater, preventing one side of the second booster station from being floated by seawater buoyancy, and further ensuring the stable operation of the second booster station underwater.

[0014] In one optional embodiment, the sliding mechanism is a roller, and the rollers are respectively provided on opposite sides of the second booster station. The connecting shaft of the roller is rotatably connected to the second booster station, and the roller is disposed in the sliding groove.

[0015] Beneficial effects: By setting the rollers inside the slide groove, the rollers can slide and roll simultaneously within the slide groove, ensuring smooth movement of the sliding mechanism on the guide rail mechanism. This means that the second booster station can slide smoothly on the guide rail mechanism, preventing the sliding mechanism of the second booster station from getting stuck in the guide rail mechanism, which would prevent the second booster station from sliding on the guide rail mechanism.

[0016] In one optional embodiment, the second booster station is provided with a plurality of first mounting slots on one side, the plurality of first mounting slots being adapted to be connected to the first cable of the floating wind turbine respectively; the second booster station is provided with a second mounting slot on the other side, and the first booster station is provided with a third mounting slot corresponding to the second booster station, the second mounting slot being connected to the third mounting slot via a second cable.

[0017] Beneficial effects: By setting multiple first mounting slots on one side of the second booster station, multiple floating wind turbines can be connected to their corresponding first mounting slots via first cables, allowing the energy generated by the floating wind turbines to be transmitted to the second booster station via the first cables. The second and third mounting slots are connected via second cables, linking the second and first booster stations, thus transmitting the energy collected by the second booster station to the first booster station, facilitating centralized energy transmission from the first booster station.

[0018] In one optional embodiment, the first booster station is provided with connection points on both sides of the third mounting slot, and multiple damping components are provided. One end of each of the multiple damping components is connected to a corresponding connection point, and the other end of each of the multiple damping components is connected to the second booster station.

[0019] Beneficial effects: By setting connection points on the first substation, the damping components can be connected to the first substation, facilitating the installation of the sliding subsea substation device. By using multiple damping components, the buffering effect of the damping components on the second substation is improved, further reducing fatigue damage at fatigue hotspots, effectively preventing fractures at fatigue hotspots, reducing the risk of economic losses, and improving the safety of the sliding subsea substation device.

[0020] In one optional embodiment, the anti-sinking plate is provided with a plurality of sleeves penetrating the anti-sinking plate;

[0021] The fixing mechanism is a helical anchor, which includes a rod and helical blades. The helical blades are provided on the outer surface of the rod along its axial direction. One end of the helical anchor is adapted to be fixed in the sleeve, and the other end is adapted to be placed on the seabed.

[0022] Beneficial effects: By setting anti-sinking plates and spiral anchors, the first and second booster stations can be located underwater, eliminating the need to erect steel pipe frames and jacket frames to place the booster stations at sea. This saves steel, simplifies the installation process, and reduces costs.

[0023] In one alternative embodiment, the end of the rod is tapered.

[0024] Beneficial effects: By setting the end of the auger rod to be conical, the auger can pass through the clay layer when rotated, which facilitates the installation of the auger.

[0025] In one alternative embodiment, the helical blades are provided in a plurality of manner, and the plurality of helical blades are spaced apart along the axial direction of the rod.

[0026] Beneficial effects: By setting multiple helical blades on the rod, the helical anchor can pass through the clay layer when rotating, which facilitates the installation of the helical anchor. At the same time, setting multiple helical blades can also improve the compressive bearing capacity and tensile bearing capacity of the helical anchor.

[0027] In one alternative embodiment, the diameter of the rod is 60mm-80mm.

[0028] Beneficial effects: By setting the diameter of the rod to 60mm-80mm, the end resistance experienced by the rod end in the soil is reduced, facilitating the installation of the helical anchor. If the rod diameter is small, the rod stiffness is low; if the rod diameter is large, the helical anchor is difficult to install.

[0029] In one alternative embodiment, the projected diameter of the helical blade along the axial direction of the rod is greater than or equal to three times the diameter of the rod, and the projected diameter of the helical blade along the axial direction of the rod is less than or equal to four times the diameter of the rod.

[0030] Beneficial effects: By limiting the diameter of the helical blades and rod, the helical anchor is easy to install, while ensuring the horizontal load-bearing capacity and anti-overturning load-bearing capacity of the helical anchor.

[0031] In one alternative embodiment, the spiral anchor and the sleeve are connected by grouting.

[0032] Beneficial effects: By grouting the gap between the helical anchor and the sleeve, the connection between the helical anchor and the sleeve is made firm, thereby ensuring that the anti-sinking plate is firmly fixed on the seabed and ensuring the stable operation of the first and second booster stations.

[0033] In one alternative embodiment, the fixing mechanism is a suction cylinder, the top of which is fixedly connected to the bottom surface of the anti-sinking plate, and the bottom of which is adapted to be fixed to the seabed.

[0034] Beneficial effects: The anti-sinking plate is fixed to the seabed by a suction cylinder, replacing the traditional steel pipe pile structure. This saves the steel part of the guide frame for installing steel pipe piles, reducing the cost of steel and installation space. In addition, the suction cylinder does not require pile driving, is easy to install, and can be recycled.

[0035] In one optional embodiment, the suction cylinder includes a cylinder body, a top cover, a pumping device, a column, multiple wing plates, and multiple reinforcing ribs; the top cover is fixedly installed on the top of the cylinder body to close the cylinder body; the pumping device is installed on the top cover; the column is fixedly installed at the central axis of the top cover; the wing plates extend radially from the column to the edge of the top cover; the multiple wing plates are radially and equidistantly distributed on the upper surface of the top cover and are connected to each other by the reinforcing ribs.

[0036] Beneficial effects: The suction cylinder of this invention is equipped with a pumping device, which allows water to enter and exit the cylinder. During drainage, a pressure difference is generated inside and outside the cylinder, causing it to be pressed into the seabed under negative pressure until the top cover contacts the seabed surface. This replaces the traditional method of fixing steel pipe piles to the seabed, making installation more convenient, minimizing disturbance to the seabed, and reducing the impact on the seabed environment. The addition of wing plates not only improves the stability of the column but also better transfers the load from the anti-sinking plate to the seabed soil through the suction cylinder.

[0037] In one optional embodiment, four suction cylinders are provided, each corresponding to one of the four corners of the anti-sinking plate; the height of the cylinder does not exceed three times the diameter of the cylinder; and the width of the anti-sinking plate is greater than three times the diameter of the cylinder.

[0038] Beneficial effects: This invention uses four suction cylinders to form a four-corner support structure, which can better support the anti-sinking plate. The height of the cylinder does not exceed three times its diameter to avoid excessive penetration resistance on the seabed caused by an excessively tall cylinder, thus increasing installation difficulty. The width of the anti-sinking plate is greater than three times the diameter of the cylinder, ensuring sufficient distance between the suction cylinders to avoid the cluster effect that could reduce the load-bearing capacity of the suction cylinders.

[0039] In one optional embodiment, the anti-sinking plate is provided with a plurality of sleeves penetrating the anti-sinking plate;

[0040] The fixing mechanism is a fixed pile, which is set one-to-one with the sleeve. One end of the fixed pile is located inside the sleeve, and the other end is adapted to be fixed in the seabed and fix the anti-sinking plate to the seabed.

[0041] Beneficial effects: By installing the anti-sinking plate on the seabed using fixed piles, the amount of steel used in the foundation preparation of the sliding subsea booster station device is effectively reduced, thereby saving steel, reducing costs, and facilitating installation.

[0042] In one optional embodiment, one end of the fixed pile is provided with a cavity communicating with that end, the end of the fixed pile away from the cavity is provided inside the sleeve, and the end of the fixed pile away from the cavity is provided with a top cover suitable for sealing the cavity; the sleeve is provided at the corner of the anti-sinking plate.

[0043] Beneficial effects: By setting a cavity communicating with its lower end within the fixed pile, the weight of the fixed pile can be reduced. Compared to solid fixed piles, the fixed pile of this invention can reduce soil compression during the piling process, reduce construction difficulty, and improve construction efficiency. Furthermore, after the fixed pile is installed, the soil enters the cavity, forming a tight connection with the pile body, which increases the fixed pile's resistance to lateral displacement, making it more stable when subjected to lateral or horizontal forces. In addition, the end of the fixed pile away from the cavity has a top cover, which increases the contact area between the piling machine and the fixed pile, allowing the force applied by the piling machine to be more effectively transmitted to the fixed pile, improving piling efficiency. Furthermore, placing the sleeve at the corner of the anti-sinking slab, i.e., placing the fixed pile at the corner of the anti-sinking slab body, can enhance the stability of the entire structure and reduce deformation and swaying when affected by ocean forces.

[0044] In one alternative embodiment, the anti-sinking plate is provided with multiple lifting lugs.

[0045] Beneficial effects: The anti-sinking plate is equipped with multiple lifting lugs to facilitate the hoisting and placement of the anti-sinking plate on the seabed.

[0046] In one alternative embodiment, the anti-sinking plate includes a plate body and a skirt plate; the outer edge of the lower surface of the plate body extends outward to form an annular skirt plate.

[0047] Beneficial effects: When the slab is lowered onto the seabed, the skirt inserts into the seabed, forming a fixed connection and improving the slab's resistance to slippage. The skirt has a simple structure, is easy to install, and has low operating costs.

[0048] In one alternative embodiment, the sliding subsea booster station device further includes multiple anti-collision plates surrounding the upper surface of the anti-sinking plate.

[0049] Beneficial effects: Placing anti-collision plates on the upper surface of the anti-sinking plate can prevent marine life from impacting the sliding submersible booster station device and prevent external factors such as seabed landslides from damaging the sliding submersible booster station device, thus effectively protecting the sliding submersible booster station device.

[0050] In one optional embodiment, the sliding submersible booster station device further includes a truss, which includes a plurality of horizontally arranged first links connected end to end, a plurality of vertically arranged second links, and a plurality of inclined third links; the first links are arranged corresponding to the outer edge of the anti-sinking plate; one end of the second link is connected to the connection point of two adjacent first links, and the other end is connected to the upper surface of the anti-sinking plate; one end of the third link is connected to the connection point of the first and second links, and the other end is connected to the corner of the anti-sinking plate.

[0051] Beneficial effects: The trusses installed on the anti-sinking plate can increase the stability of the overall structure, effectively resist external forces such as earthquakes and long-term cyclic loads, making the entire sliding subsea booster station device more stable and reliable.

[0052] In one alternative embodiment, the anti-collision plates are arranged opposite each other on the upper surface of the anti-sinking plate, and the second connecting rod is located in the gap between the adjacent anti-collision plates; the height of the second connecting rod is higher than the height of the anti-collision plate.

[0053] Beneficial effects: The collision shield and the second link work together to create a larger protection range for the sliding submersible booster station, reducing the likelihood of seabed organisms colliding with it. Furthermore, the second link is higher than the collision shield, allowing the frame formed by the first link to be installed above the shield. This prevents organisms crossing the shield from damaging the sliding submersible booster station, further increasing its protective coverage area.

[0054] In one optional embodiment, a first shielding plate is provided above the space enclosed by the first link, and a second shielding plate is provided around the first shielding plate, which is inclined toward the outer edge of the anti-sinking plate. The second shielding plates are located around the second link, and each second shielding plate is connected to the upper surface of the anti-sinking plate through a support rod.

[0055] Beneficial effects: By setting up a first shield and a second shield, the present invention can prevent the sliding subsea booster station from being washed by seawater and hit by sea creatures, thus avoiding damage to the sliding subsea booster station.

[0056] In one alternative implementation, a gap is left between adjacent second shielding plates, which are connected by reinforcing rods.

[0057] Beneficial effects: In this invention, the two adjacent second baffles are reinforced by reinforcing rods, so that the connected second baffles can withstand greater forces and loads.

[0058] In one alternative implementation, the support rod is connected to the anti-sinking plate via a connecting ring.

[0059] Beneficial effects: This invention connects the support rod and the anti-sinking plate via a connecting ring, which increases the reliability and stability of the connection between the support rod and the anti-sinking plate. Furthermore, the connecting ring can disperse stress concentration at the connection point, reducing the impact of localized stress on the support rod and the anti-sinking plate.

[0060] Secondly, the present invention also provides an offshore wind power system, comprising:

[0061] Floating wind turbine;

[0062] A sliding submersible booster station device, wherein one side of the second booster station is connected to the first cable of the floating wind turbine.

[0063] Beneficial effects: Connecting a floating wind turbine on the sea surface to a second booster station via a first cable allows the energy generated by the floating wind turbine to be transmitted to the second booster station via the first cable. The second mounting slot of the second booster station is connected to the third mounting slot of the first booster station via a second cable, transmitting the energy collected by the second booster station back to the first booster station, facilitating the centralized transmission of energy to land. When the floating wind turbine moves with the waves, it pulls the first cable. When the first cable is subjected to external loads, it pulls the second booster station, causing its sliding mechanism to slide on the guide rail mechanism. During this sliding process, the damping components apply a damping force to the second booster station to buffer its movement speed, thereby releasing the tension in the first cable, reducing fatigue damage at fatigue hotspots, effectively preventing fractures at fatigue hotspots, reducing the risk of economic losses, and improving the safety of the sliding underwater booster station device. Meanwhile, by setting up anti-sinking plates and fixing mechanisms, the first and second booster stations are located underwater, eliminating the need to erect steel pipe frames and guide frames to place the booster stations at sea. This saves steel, simplifies the installation process, and reduces costs. Attached Figure Description

[0064] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0065] Figure 1 This is a schematic diagram of the structure of a sliding submersible booster station device according to an embodiment of the present invention;

[0066] Figure 2 for Figure 1 Schematic diagram of the structure of the first booster station in China;

[0067] Figure 3 for Figure 1 Schematic diagram of the structure of the second booster station;

[0068] Figure 4 for Figure 1 A structural schematic diagram of the second booster station from another angle;

[0069] Figure 5 This is a schematic diagram of the structure of the spiral anchor and the sleeve.

[0070] Figure 6 for Figure 1 Schematic diagram of the structure of the spiral anchor;

[0071] Figure 7 This is a top view of the spiral anchor;

[0072] Figure 8 A schematic diagram of a sliding subsea booster station installed on the seabed;

[0073] Figure 9 This is a schematic diagram of the structure of a sliding submersible booster station device according to another embodiment of the present invention;

[0074] Figure 10 for Figure 9 Schematic diagram of the structure of the suction cylinder;

[0075] Figure 11 This is a schematic diagram of the structure of a sliding submersible booster station device according to another embodiment of the present invention;

[0076] Figure 12 for Figure 11 Schematic diagram of the structure of the central fixed pile;

[0077] Figure 13 This is a schematic diagram of the structure of a sliding submersible booster station device according to an embodiment of the present invention, showing the installation truss and anti-collision plate.

[0078] Figure 14 This is a schematic diagram of the structure of a sliding submersible booster station device according to an embodiment of the present invention after the installation of the first and second shielding plates;

[0079] Figure 15 This is a schematic diagram of the structure of a sliding submersible booster station device after the skirt plate is installed, according to an embodiment of the present invention.

[0080] Explanation of reference numerals in the attached figures:

[0081] 1. Anti-sinking plate; 101. Sleeve; 102. Lifting lug; 103. Plate body; 104. Skirt; 2. First booster station; 201. Third mounting slot; 202. Connection point; 3. Guide rail mechanism; 301. First slide rail; 302. Second slide rail; 303. Slide groove; 4. Second booster station; 401. Sliding mechanism; 402. First mounting slot; 403. Second mounting slot; 5. Damping component; 6. Helical anchor; 601. Rod body; 602. Helical blade; 7. Floating wind turbine; 8. First cable; 9. Second cable; 10. Seabed; 11. Sea 12. Plane; 1201. Suction cylinder; 1202. Top cover; 1203. Pumping device; 1204. Column; 1205. Wing plate; 1206. Reinforcing rib; 13. Fixed pile; 1301. Cavity; 14. Anti-collision plate; 15. Truss; 1501. First connecting rod; 1502. Second connecting rod; 1503. Third connecting rod; 1531. Shock absorption assembly; 1532. Third sub-connecting rod; 1601. First shielding plate; 1602. Second shielding plate; 1603. Support rod; 1604. Reinforcing rod; 1605. Connecting ring. Detailed Implementation

[0082] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0083] In related technologies, fixed offshore substations require separate foundations. The foundation of an offshore substation generally includes steel pipe piles and a jacket structure. During the installation of an offshore substation, the steel pipe piles are usually driven into the seabed 10 to a certain depth first, and then the legs of the jacket structure are fitted onto the steel pipe piles one by one. Since the jacket structure needs to extend from the seabed 10 to the sea surface, as the development of offshore wind power stations gradually moves into deeper waters, the wind and wave environment in deep waters is harsh. Under extreme wind and wave loads, the floating wind turbine 7 will cause large reciprocating cyclic motion. During the movement of the floating wind turbine 7 with the waves, it will drive the cable to generate large tension, making the connection between the cable and the substation a fatigue hotspot, resulting in large cumulative fatigue damage, which in turn will lead to fracture at the fatigue hotspot.

[0084] The following is combined with Figures 1 to 15 The following describes embodiments of the present invention.

[0085] According to an embodiment of the present invention, a sliding underwater booster station device is provided, comprising: an anti-sinking plate 1, a second booster station 4, and a fixing mechanism.

[0086] Specifically, such as Figure 1 As shown, the top surface of the anti-sinking plate 1 is provided with a first booster station 2 and a guide rail mechanism 3. The first booster station 2 is fixedly installed on one side of the guide rail mechanism 3 along its length.

[0087] Specifically, such as Figure 1 , Figure 3 , Figure 4 and Figure 8 As shown, the second booster station 4 is equipped with a sliding mechanism 401, which is slidably connected to the guide rail mechanism 3. That is, the sliding mechanism 401 can slide on the guide rail mechanism 3, thereby driving the second booster station 4 to move along the length of the guide rail mechanism 3. Figure 8 As shown, one side of the second booster station 4 is adapted to connect to the first cable 8 of the floating wind turbine 7, and the other side of the second booster station 4 is adapted to connect to the first booster station 2 via a damping element 5. That is, when the floating wind turbine 7 moves with the waves, it will pull the first cable 8 to move, and the first cable 8 will further drive the second booster station 4 to slide on the guide rail mechanism 3. During the movement of the second booster station 4 on the guide rail mechanism 3, the damping element 5 will apply a certain damping force to the second booster station 4.

[0088] Specifically, one end of the fixing mechanism is suitable for fixing the anti-sinking plate 1, and the other end is suitable for fixing it to the seabed 10.

[0089] This sliding submersible booster station device utilizes a sliding mechanism 401 on the second booster station 4, allowing it to slide along the length of the guide rail mechanism 3. The first booster station 2 and the second booster station 4 are connected by a damping element 5, which provides cushioning during the sliding process. When the floating wind turbine 7 moves with the waves, it pulls the first cable 8. When the first cable 8 is subjected to external loads, it pulls the second booster station 4, causing the sliding mechanism 401 of the second booster station 4 to slide on the guide rail mechanism 3. During this sliding process, the damping element 5 applies a damping force to the second booster station 4, buffering its movement speed and releasing the tension in the first cable 8. This reduces fatigue damage at fatigue hotspots, effectively preventing breakage at these points, minimizing economic losses, and improving the safety of the sliding submersible booster station device. Meanwhile, by setting up anti-sinking plate 1 and fixing mechanism, the first booster station 2 and the second booster station 4 are set underwater, eliminating the need to erect steel pipe frame and guide frame to set up the booster station at sea, thereby saving steel, simplifying the installation steps and reducing costs.

[0090] Specifically, anti-sinking slabs 1 are installed on the seabed 10 to prevent the first booster station 2 and the second booster station 4 from directly resting on the seabed 10. The surface of the seabed 10 in my country is mostly soft clay with low strength and stiffness and poor bearing capacity. If the first booster station 2 and the second booster station 4 were to rest directly on the seabed 10 for an extended period, significant settlement could easily occur, rendering them unusable. By installing large anti-sinking slabs 1 under the first booster station 2 and the second booster station 4, the stress exerted by the first booster station 2 and the second booster station 4 on the seabed 10 can be reduced, thus preventing significant settlement.

[0091] The anti-sinking plate 1 can be made of high-density tungsten steel to increase its stability and corrosion resistance. The length of the anti-sinking plate 1 can be set to twice the length of the rod 601 of the spiral anchor 6. The sleeve 101 can be welded to the anti-sinking plate 1.

[0092] In one embodiment, such as Figure 1 As shown, the guide rail mechanism 3 includes a first slide rail 301 and a second slide rail 302. The first slide rail 301 is fixedly mounted on the top surface of the anti-sinking plate 1, and the second slide rail 302 covers the first slide rail 301, forming a groove 303 between the first slide rail 301 and the second slide rail 302. A sliding mechanism 401 is disposed inside the groove 303 and can slide within the groove 303. By sliding the sliding mechanism 401 within the groove 303 using the first slide rail 301 and the second slide rail 302, the second booster station 4 can slide along the length of the guide rail mechanism 3. Simultaneously, by placing the sliding mechanism 401 within the groove 303, i.e., by limiting the sliding mechanism 401, the first slide rail 301 and the second slide rail 302 can prevent the second booster station 4 from floating upwards due to the buoyancy of seawater, ensuring that the second booster station 4 operates normally underwater.

[0093] Specifically, the first slide rail 301 can be elongated, with a first groove along its length. The second slide rail 302 is symmetrically arranged with the first slide rail 301, meaning it has a second groove along its length. When the second slide rail 302 covers the first slide rail 301, the first and second grooves form a sliding groove 303, and the sliding mechanism 401 is movably disposed within the sliding groove 303. The first slide rail 301 and the second slide rail 302 can be fixedly connected by snap-fit ​​or by welding. The specific configuration is not limited here; it can be configured according to actual needs.

[0094] In one embodiment, such as Figure 1As shown, the guide rail mechanism 3 includes two sets, which are arranged at intervals relative to each other. The two sets of guide rail mechanisms 3 are arranged at intervals along the width direction of the guide rail mechanism 3. By setting two sets of guide rail mechanisms 3, the sliding mechanisms 401 on both sides of the second booster station 4 are set in the guide rail mechanism 3, ensuring that the second booster station 4 can slide smoothly on the guide rail mechanism 3 during the sliding process. At the same time, the two sets of guide rail mechanisms 3 limit both sides of the second booster station 4, ensuring that the second booster station 4 operates smoothly underwater and preventing one side of the second booster station 4 from being floated by the buoyancy of the seawater, further ensuring the smooth operation of the second booster station 4 underwater.

[0095] In one embodiment, such as Figure 3 , Figure 4 and Figure 8 As shown, the sliding mechanism 401 is a roller. Rollers are respectively arranged on opposite sides of the second booster station 4. The connecting shaft of the roller is connected to the second booster station 4, and the roller is located inside the slide groove 303. By setting the roller inside the slide groove 303, the roller can slide and roll within the slide groove 303, ensuring that the sliding mechanism 401 moves smoothly on the guide rail mechanism 3. That is, the second booster station 4 can slide smoothly on the guide rail mechanism 3, preventing the sliding mechanism 401 of the second booster station 4 from getting stuck in the guide rail mechanism 3, which would prevent the second booster station 4 from sliding on the guide rail mechanism 3. If the second booster station 4 cannot slide on the guide rail mechanism 3, when the first cable 8 is pulled by an external load, the first cable 8 cannot pull the second booster station 4 to move. That is, the damping element 5 cannot apply damping force to the second booster station 4 to buffer the second booster station 4, which will lead to increased fatigue damage at fatigue hotspots.

[0096] Multiple rollers can be installed on one side of the second booster station 4, with the rollers spaced apart, and the rollers on both sides of the second booster station 4 can be installed symmetrically.

[0097] In one embodiment, such as Figure 3 , Figure 4 and Figure 8 As shown, a plurality of first mounting slots 402 are provided on one side of the second booster station 4, and the plurality of first mounting slots 402 are adapted to be connected to the first cable 8 of the floating fan 7 respectively. A second mounting slot 403 is provided on the other side of the second booster station 4, as shown... Figure 2As shown, the first booster station 2 is provided with a third mounting slot 201 corresponding to the second booster station 4. The second mounting slot 403 is connected to the third mounting slot 201 via a second cable 9. By providing multiple first mounting slots 402 on one side of the second booster station 4, multiple floating wind turbines 7 can be connected to their corresponding first mounting slots 402 via first cables 8, allowing the energy generated by the floating wind turbines 7 to be transmitted to the second booster station 4 via the first cables 8. The second mounting slots 403 and the third mounting slots 201 are connected via the second cable 9, connecting the second booster station 4 and the first booster station 2, and transmitting the energy collected by the second booster station 4 to the first booster station 2, so that the first booster station 2 can centrally transmit the energy.

[0098] Among them, such as Figure 3 and Figure 4 As shown, the multiple first mounting slots 402 can be spaced apart on one side of the second booster station 4, or the multiple first mounting slots 402 can be arranged in a ring array on one side of the second booster station 4. The specific arrangement is not limited here, and can be set according to actual needs.

[0099] In one embodiment, such as Figure 1 and Figure 2 As shown, the first substation 2 has connection points 202 on both sides of the third mounting groove 201. Multiple damping elements 5 are provided, with one end of each damping element 5 connected to a corresponding connection point 202, and the other end connected to the second substation 4. The connection points 202 on the first substation 2 facilitate the connection of the damping elements 5 to the first substation 2, thus simplifying the installation of the sliding subsea substation device. The multiple damping elements 5 enhance the buffering effect on the second substation 4, further reducing fatigue damage at fatigue hotspots, effectively preventing fractures at fatigue hotspots, reducing the risk of economic losses, and improving the safety of the sliding subsea substation device.

[0100] The damping element 5 can be an elastic damping element or a hydraulic damper.

[0101] In one embodiment, such as Figure 1 , Figure 5 and Figure 6 As shown, the anti-sinking plate 1 is provided with multiple sleeves 101 that penetrate the anti-sinking plate 1. The fixing mechanism is a spiral anchor 6, which includes a rod 601 and spiral blades 602. The outer surface of the rod 601 is provided with spiral blades 602 along its axial direction. One end of the spiral anchor 6 is suitable for fixing in the sleeve 101, and the other end is suitable for fixing on the seabed 10. That is, by passing the spiral anchor 6 through the sleeve 101, the anti-sinking plate 1 can be fixed on the seabed 10.

[0102] Specifically, during the installation of the helical anchor 6, the rotating device of the installation vessel is connected to the top of the helical anchor 6. After the helical anchor 6 is hoisted to the designated position, its bottom end passes through the sleeve 101. The rotating device applies a certain torque to the helical anchor 6, thus rotating and installing it into the seabed 10. The installation method of the helical anchor 6 is simple, causes minimal disturbance to the seabed 10 during installation, and has the advantage of being retrievable. The helical anchor 6 can be used as a temporary or permanent support structure.

[0103] Specifically, the spiral anchor 6 also possesses excellent load-bearing capacity. By increasing the length of the spiral anchor 6, its horizontal load-bearing capacity and anti-overturning load-bearing capacity can be significantly improved. Furthermore, by increasing the area of ​​the spiral blades 602, the compressive load-bearing capacity and tensile load-bearing capacity of the spiral anchor 6 can be enhanced.

[0104] Specifically, when the seabed 10 is a layered soil, especially when soft clay is laid under the sand layer, the spiral anchor 6 can be inserted into the seabed 10 by rotating it. During the installation project, there is no need to consider risks such as pile slippage and puncture, which can effectively avoid certain engineering accidents and improve the safety of construction.

[0105] In one embodiment, such as Figure 6 As shown, the end of the rod 601 of the spiral anchor 6 is tapered. By setting the end of the rod 601 of the spiral anchor 6 to be tapered, the spiral anchor 6 can pass through the clay layer when it is rotated, which facilitates the installation of the spiral anchor 6.

[0106] In one embodiment, such as Figure 6 As shown, multiple helical blades 602 are provided, and the multiple helical blades 602 are spaced apart along the axial direction of the rod body 601. By providing multiple helical blades 602 on the rod body 601, the helical anchor 6 can pass through the clay layer when rotating, which facilitates the installation of the helical anchor 6. At the same time, by providing multiple helical blades 602, the compressive bearing capacity and tensile bearing capacity of the helical anchor 6 can be improved.

[0107] The number of spiral blades 602 on the rod 601 can be 2, 3, 5, 7, etc. The specific setting method is not limited here, and can be set according to actual needs.

[0108] In one embodiment, such as Figure 7As shown, the diameter of rod 601 is D, which is 60mm-80mm. By setting the diameter of rod 601 to 60mm-80mm, the end resistance experienced by the end of rod 601 in the soil is reduced, facilitating the installation of the helical anchor 6. If the diameter of rod 601 is smaller, the stiffness of rod 601 will be lower; if the diameter of rod 601 is larger, the helical anchor 6 will be difficult to install. The diameter of rod 601 is usually set to 60mm, 70mm, 80mm, etc., and the specific setting method is not limited here. It can be set according to actual needs.

[0109] The length of the rod 601 is generally greater than or equal to 10 meters to ensure the load-bearing capacity of the spiral anchor 6.

[0110] In one embodiment, such as Figure 7 As shown, the projected diameter of the helical blade 602 along the axial direction of the rod 601 is d. The projected diameter of the helical blade 602 along the axial direction of the rod 601 is greater than or equal to three times the diameter of the rod 601, and less than or equal to four times the diameter of the rod 601. That is, d is between 3D and 4D. By limiting the diameters of the helical blade 602 and the rod 601, the helical anchor 6 is easy to install, while ensuring the horizontal bearing capacity and overturning resistance of the helical anchor 6.

[0111] In one embodiment, the spiral anchor 6 and the sleeve 101 are connected by grouting. By grouting the gap between the spiral anchor 6 and the sleeve 101, the spiral anchor 6 and the sleeve 101 are firmly connected, thereby ensuring that the anti-sinking plate 1 is firmly fixed on the seabed 10 and ensuring that the first booster station 2 and the second booster station 4 can operate smoothly.

[0112] In this embodiment, the calculation method for the pull-out bearing capacity of the helical anchor is as follows:

[0113] The pull-out bearing capacity V1 of a single helical anchor is calculated by the following formula:

[0114] V1 = i c As u

[0115] N c Let s be the pull-out bearing capacity coefficient of the helical anchor, A be the projected area of ​​the helical anchor blades on the horizontal plane, and s be the pull-out bearing capacity coefficient. u This represents the average undrained shear strength of the soil at the depth where the helical anchor blade is located, expressed in kPa.

[0116] The total tensile strength is:

[0117] V′=nβV′1

[0118] Where n is the number of helical anchors, and β is the group effect coefficient of the mutual influence of multiple helical anchors.

[0119] In another embodiment, such as Figure 9 and Figure 10 As shown, the fixing mechanism can also be a suction cylinder 12. The top of the suction cylinder 12 is fixedly connected to the bottom surface of the anti-sinking plate 1, and the bottom of the suction cylinder 12 is suitable for fixing to the seabed 10. The anti-sinking plate 1 is fixed to the seabed 10 by the suction cylinder 12, replacing the traditional steel pipe pile structure. This can save the steel part of the guide frame for installing steel pipe piles, reduce the cost of steel use and installation space, and the suction cylinder 12 does not require pile driving, is easy to install, and can be recycled.

[0120] In one embodiment, such as Figure 9 and Figure 10 As shown, the suction cylinder 12 includes a cylinder body 1201, a top cover 1202, a pumping device 1203, a column 1204, multiple wing plates 1205, and multiple reinforcing ribs 1206. The top cover 1202 is fixedly installed on the top of the cylinder body 1201 to seal the cylinder body 1201. The inside of the cylinder body 1201 is a cavity 1301. The top cover 1202 is sealed to the cylinder body 1201 to form a sealed cavity 1301. The pumping device 1203 is installed on the top cover 1202. Water can enter and exit the cylinder body 1201 through the pumping device 1203. When the cylinder body 1201 drains water, a pressure difference is generated inside and outside the cylinder body 1201, causing the suction cylinder 12 to be pressed into the seabed 10 under negative pressure until the top cover 1202 contacts the surface of the seabed 10, which is especially suitable for use on soft seabeds 10. Compared to the traditional method of fixing the suction cylinder 12 to the seabed 10 by driving steel pipe piles, this method eliminates the need for piling, making installation more convenient, minimizing disturbance to the seabed 10, reducing the impact on the seabed environment, and saving on steel for the installation of the jacket frame, thus lowering operating costs. Furthermore, the suction cylinder 12 provides a more secure fixation, reducing the reaction force of the first cable tension on the suction cylinder 12 when the subsea booster station foundation moves with the floating wind turbine 7, preventing the suction cylinder 12 from loosening from the seabed 10.

[0121] The column 1204 is fixedly installed at the central axis of the top cover 1202. The top of the column 1204 is fixedly connected to the bottom surface of the anti-sinking plate 1. Wing plates 1205 extend radially from the column 1204 to the edge of the top cover 1202, with multiple wing plates 1205 radially and equidistantly distributed on the upper surface of the top cover 1202. The wing plates 1205 not only improve the stability of the column 1204 but also better transfer the load from the anti-sinking plate 1 to the seabed 10 soil through the suction cylinder 12. Reinforcing ribs 1206 are provided between the multiple wing plates 1205. The reinforcing ribs 1206 improve the stability of the wing plates 1205.

[0122] In one embodiment, such as Figure 9As shown, four suction cylinders 12 are provided, each corresponding to one of the four corners of the anti-sinking plate 1. The four suction cylinders 12 can be fixedly installed at the four corners of the bottom surface of the anti-sinking plate 1. Alternatively, sleeves 101 can be installed through each of the four corners of the anti-sinking plate 1, with the four suction cylinders 12 fixed to each sleeve 101. The fixing method can be welding, snap-fitting, or other methods. The four suction cylinders 12 form a four-corner support structure, facilitating better support of the anti-sinking plate 1. The anti-sinking plate 1 can be configured as a circular plate, polygonal plate, or other shapes as needed, and the number and arrangement of the suction cylinders 12 can be adapted to the specific configuration of the anti-sinking plate 1.

[0123] In addition, in this embodiment, the diameter of the cylinder 1201 is less than 10 meters, and the thickness of the cylinder 1201 is 50 millimeters. The height of the cylinder 1201 does not exceed three times the diameter of the cylinder 1201, so as to avoid excessive penetration resistance in the seabed 10 caused by an excessively tall cylinder 1201, which would increase the difficulty of installation.

[0124] Specifically, the width of the anti-sinking plate 1 is more than three times the diameter of the cylinder 1201, so that there is a sufficiently large distance between each suction cylinder 12 to avoid the cluster effect caused by the insufficient spacing between the suction cylinders 12, which would lead to a decrease in load-bearing capacity.

[0125] It is understandable that the dimensions of the anti-sinking plate 1 and the suction cylinder 12 can be set according to actual needs, and the specific setting method is not limited here.

[0126] The working principle of the suction cylinder 12 is as follows: the suction cylinder 12 draws in seawater during the sinking process. Under the weight of the anti-sinking plate 1 and the suction cylinder 12, the cylinder 1201 is filled to a certain depth on the seabed 10. Then, the pumping device 1203 of the suction cylinder 12 continuously discharges the seawater inside the suction cylinder 12, so that the water pressure outside the suction cylinder 12 is greater than the water pressure inside the suction cylinder 12, thereby relying on negative pressure to fill the suction cylinder 12 to the preset depth.

[0127] The method for calculating the pull-out bearing capacity of the suction cylinder 12 in this embodiment is as follows:

[0128] The pull-out bearing capacity V′1 of a single suction cylinder 12 is determined by the inner frictional resistance V′ i , outer frictional resistance V′ o and the reverse bearing capacity V′ of the soil inside the cylinder b The composition and calculation formula are as follows:

[0129] V′1=V′ i +V′ o +V′ b

[0130] Among them, V′ i +V′ o =απL(d+D)s u

[0131] Where α is the average viscosity coefficient of the soil, L is the height of cylinder 1201, D is the outer diameter of cylinder 1201, d is the inner diameter of cylinder 1201, and s u It represents the average undrained shear strength of the soil at the depth where suction cylinder 12 is located.

[0132] Reverse bearing capacity V′ of the soil inside the cylinder b =N c d cv A1s u

[0133] Where, N c d is the upward pull-out bearing capacity coefficient of suction cylinder 12. cv A1 is the depth coefficient of the suction cylinder 12, and A1 is the area of ​​the top cover 1202 of the suction cylinder 12.

[0134] Depth coefficient of suction cylinder 12

[0135] The total tensile bearing capacity V′ is

[0136] V′=nβV′1

[0137] Where n is the number of suction cylinders 12, and β is the group effect coefficient of suction cylinders 12.

[0138] In another embodiment, such as Figure 11 and Figure 12 As shown, the anti-sinking plate 1 is provided with multiple sleeves 101 penetrating the anti-sinking plate 1. The fixing mechanism is a fixing pile 13, which is arranged one-to-one with the sleeve 101. One end of the fixing pile 13 is located inside the sleeve 101, and the other end is adapted to be fixed inside the seabed 10 and to fix the anti-sinking plate 1 to the seabed 10. The sleeve 101 is welded to the anti-sinking plate 1, and the axis of the sleeve 101 is set perpendicular to the plate surface of the anti-sinking plate 1, ensuring that the fixing pile 13 inserted therein can be set perpendicular to the seabed 10 during installation, thereby giving the fixing pile 13 better load-bearing capacity and stability in the vertical direction. It should be noted that after the fixing pile 13 fixes the anti-sinking plate 1 to the seabed 10, the end of the fixing pile 13 near the sleeve 101 should be higher than the upper end face of the sleeve 101. For example, the top of the fixing pile 13 should be 0.5 meters to 1 meter higher than the upper end face of the sleeve 101. This is to avoid settlement of the fixing pile 13 before grouting the sleeve 101, which would reduce the effective contact area between the fixing pile 13 and the sleeve 101 and thus affect the connection strength between them. In this embodiment, the fixing pile 13 can be, but is not limited to, a steel pipe pile.

[0139] Furthermore, taking steel pipe piles as an example, the calculation method for the pull-out bearing capacity of the fixed pile 13 in this embodiment is as follows:

[0140] The pull-out bearing capacity of a single steel pipe pile is determined by the inner friction V′. i and outer frictional resistance V′ o The composition and calculation formula are as follows:

[0141] V′1=V′ i +V′ o =απL(D i +D o )s u

[0142] Where α is the average viscosity coefficient of the soil, L is the length of the steel pipe pile in meters, and D... o D is the outer diameter of the steel pipe pile. i The inner diameter of the steel pipe pile is expressed in meters (s). u This represents the average undrained shear strength of the soil at the depth where the steel pipe pile is located, expressed in kPa.

[0143] The total tensile bearing capacity V′ is

[0144] V′=nβV′ i

[0145] Where n is the number of steel pipe piles and β is the group pile effect coefficient.

[0146] Furthermore, it should be noted that the outer diameter of the fixed pile 13 is generally 80cm-120cm, and the inner diameter of the sleeve 101 should be slightly larger than the outer diameter of the fixed pile 13. This facilitates the later injection of concrete into the sleeve 101, binding the fixed pile 13, the seabed 10, and the anti-sinking plate 1 together; and prevents friction between the fixed pile 13 and the sleeve 101 during the piling process, which could cause initial defects in the fixed pile 13 and reduce its strength. In some examples, the height of the sleeve 101 is generally 1m-1.5m to ensure sufficient contact area with the fixed pile 13, thereby increasing the connection strength between them. The length of the fixed pile 13 is generally greater than 10 meters, allowing it to stimulate the shear strength of deeper soil layers and improve its bearing capacity. The width of the anti-sinking plate 1 is generally twice the length of the fixed pile 13, providing sufficient installation area for equipment and structures located on the upper surface of the anti-sinking plate 1. Understandably, the dimensions of sleeve 101, fixing pile 13 and anti-sinking plate 1 can be adjusted according to specific circumstances.

[0147] In one embodiment, such as Figure 12As shown, one end of the fixed pile 13 has a cavity 1301 communicating with that end, and the end of the fixed pile 13 away from the cavity 1301 is located inside the sleeve 101. The end of the fixed pile 13 away from the cavity 1301 also has a top cover 1202 suitable for sealing the cavity 1301. The sleeve 101 is located at the corner of the anti-sinking plate 1. It can be understood that providing a cavity 1301 communicating with the lower end of the fixed pile 13 can reduce the weight of the fixed pile 13. Compared to a solid fixed pile 13, the fixed pile 13 of this invention can reduce the amount of soil compression during installation, reduce construction difficulty, and improve construction efficiency. Furthermore, after the fixed pile 13 is installed, the soil enters the cavity 1301 and can form a tight connection with the pile body, which can increase the lateral displacement resistance of the fixed pile 13, making it more stable when subjected to lateral or horizontal forces. Furthermore, a top cover 1202 is provided at the end of the fixed pile 13 away from the cavity 1301, which increases the contact area between the pile driver and the fixed pile 13, allowing the force applied by the pile driver to be transmitted to the fixed pile 13 more effectively, thereby improving the efficiency and effectiveness of pile driving. In this embodiment, the top cover 1202 is integrally formed with the side wall of the fixed pile 13, and the thickness of the top cover 1202 is the same as the thickness of the side wall of the fixed pile 13.

[0148] Furthermore, placing the sleeve 101 at the corner of the anti-sinking plate 1, i.e., placing the fixing pile 13 at the corner of the anti-sinking plate 1, can enhance the stability of the entire structure and reduce its deformation and swaying when affected by ocean forces. It should be noted that the sidewall thickness of the fixing pile 13 is generally 10cm-20cm, and an appropriate thickness can be selected according to the specific conditions of the seabed 10 soil, thereby reducing the sidewall thickness of the fixing pile 13 while ensuring its bearing capacity and improving the driving capability of the fixing pile 13.

[0149] Understandably, to adapt to different soil environments, the number of sleeves 101 and the structure and shape of the fixed piles 13 can be adjusted to reduce construction difficulty and ensure the overall stability of the sliding submersible booster station. The following section elaborates on the configuration of the number of sleeves 101 under different working conditions.

[0150] Under one operating condition, the soil at the installation location of the sliding subsea booster station is a hard soil layer. Multiple sleeves 101 are arranged in parallel, and one end of each fixing pile 13 is fixedly installed inside a corresponding sleeve 101. It can be understood that multiple sleeves 101 arranged in parallel can use sleeves 101 with a smaller diameter, that is, fixing piles 13 with a relatively smaller diameter can be used.

[0151] It should be noted that in hard soil layers, due to the high compressive strength of the soil, the smaller the diameter of the fixed pile 13, the smaller the excavation size can be, thereby reducing the difficulty of pile driving and shortening the construction period. Furthermore, the vibration and disturbance generated during the driving process of the small-diameter fixed pile 13 are relatively small, thus having a relatively smaller impact on the surrounding environment.

[0152] In another operating condition, the soil at the installation location of the sliding submersible booster station is a soft soil layer, which may only contain a sleeve 101, with one end of the fixing pile 13 placed inside the sleeve 101. It should be noted that in this case, the fixing pile 13 inside the sleeve 101 can be a large-diameter fixing pile 13, increasing the contact area between the fixing pile 13 and the soil. Through friction and the close connection between the fixing pile 13 and the soil, it provides greater bearing capacity, enabling it to stably bear the load.

[0153] In one embodiment, such as Figure 1 As shown, the anti-sinking plate 1 is provided with multiple lifting lugs 102 to facilitate the hoisting of the anti-sinking plate 1 and its placement on the seabed 10. The lifting lugs 102 can be located on the top surface of the anti-sinking plate 1 and are located on both sides of the guide rail mechanism 3.

[0154] In one embodiment, such as Figure 1 As shown, the sleeve 101 is set at the corner of the anti-sinking plate 1. By setting the sleeve 101 at the corner of the anti-sinking plate 1, the spiral anchor 6 passes through the sleeve 101 to firmly fix the anti-sinking plate 1 to the seabed 10.

[0155] In one embodiment, such as Figure 15 As shown, the anti-sinking plate 1 includes a plate body 103 and a skirt 104. The plate body 103 is a rectangular plate. The outer edge of the lower surface of the plate body 103 extends outward to form a ring-shaped skirt 104. The surface of the skirt 104 is perpendicular to the surface of the plate body 103. The skirt 104 can be designed into rectangular rings, circular rings, or other shapes as needed. When the plate body 103 is sunk to the seabed, the skirt 104 inserts into the seabed, forming a fixed connection with the seabed, which can improve the anti-slip capability of the plate body 103. The skirt 104 has a simple structure, is easy to install, and has low operating costs.

[0156] In one embodiment, such as Figure 13 and Figure 14 As shown, the sliding submersible booster station also includes multiple anti-collision plates 14, which surround the upper surface of the anti-sinking plate 1. The anti-collision plates 14 on the upper surface of the anti-sinking plate 1 prevent marine life from impacting the sliding submersible booster station and protect it from damage caused by external factors such as seabed landslides, effectively protecting the device.

[0157] Specifically, multiple anti-collision plates 14 are welded to the anti-sinking plate 1. One of the anti-collision plates 14 faces the second booster station 4, and a cable groove for the first cable to pass through is provided corresponding to the second booster station 4. The anti-collision plates 14 can protect the guide rail mechanism 3 and the periphery of the first booster station 2 and the second booster station 4, preventing impact from seabed organisms and causing economic losses. In the event of a seabed landslide, they prevent soil from burying the sliding subsea booster station device, further protecting the sliding subsea booster station device and ensuring its normal operation.

[0158] Furthermore, the sliding submersible booster station device also includes a truss 15, which comprises multiple horizontally arranged first connecting rods 1501 connected end to end, multiple vertically arranged second connecting rods 1502, and multiple inclined third connecting rods 1503. The first connecting rods 1501 are correspondingly arranged to the outer edge of the anti-sinking plate 1. One end of each second connecting rod 1502 is connected to the junction of two adjacent first connecting rods 1501, and the other end is connected to the upper surface of the anti-sinking plate 1. One end of each third connecting rod 1503 is connected to the junction of the first connecting rods 1501 and the second connecting rods 1502, and the other end is connected to the corner of the anti-sinking plate 1.

[0159] To further enhance the seismic resistance of truss 15, such as Figure 13 As shown, a damping component 1531 is provided on the third link 1503. During an earthquake, the damping component 1531 can further absorb the energy of the seismic load transmitted from the seabed, reduce the impact of the seismic load on the sliding subsea booster station, avoid resonance of the sliding subsea booster station under the influence of seismic load, improve the safety and stability of the structure, and extend the service life of the sliding subsea booster station.

[0160] Specifically, the damping component 1531 is a hydraulic damper. The third link 1503 includes a pair of third sub-links 1532, and the hydraulic damper is connected between the pair of third sub-links 1532. The two ends of the hydraulic damper are welded to the third sub-links 1532 respectively, and the hydraulic damper absorbs seismic energy through the fluid viscous resistance inside the hydraulic damper, thereby reducing the vibration of the link under vibration or impact load, reducing the risk of resonance, improving the stability and reliability of the truss 15, and protecting other components from excessive vibration.

[0161] In one embodiment, the anti-collision plates 14 are arranged opposite each other on the upper surface of the anti-sinking plate 1, and the second connecting rod 1502 is located in the gap between adjacent anti-collision plates 14; the height of the second connecting rod 1502 is higher than the height of the anti-collision plate 14. The anti-collision plates 14 and the second connecting rod 1502 cooperate with each other to form a larger protection range for the sliding submersible booster station device, reducing the possibility of seabed organisms colliding with the sliding submersible booster station device. In addition, the height of the second connecting rod 1502 is higher than the height of the anti-collision plate 14, so that the frame composed of the first connecting rod 1501 can be installed in the space above the anti-collision plate 14, which can prevent organisms crossing the anti-collision plate 14 from causing damage to the sliding submersible booster station device, further increasing the protection coverage area of ​​the sliding submersible booster station device.

[0162] In one embodiment, such as Figure 14 As shown, a first shielding plate 1601 is provided above the space enclosed by the first connecting rod 1501. The first shielding plate 1601 is horizontally positioned above the first connecting rod 1501, and its area is larger than the annular area enclosed by the first connecting rod 1501. Second shielding plates 1602 are provided around the first shielding plate 1601, inclined towards the outer edge of the anti-sinking plate 1. The second shielding plates 1602 are located on the periphery of the second connecting rod 1502, and each second shielding plate 1602 is connected to the upper surface of the anti-sinking plate 1 via a support rod 1603. The first shielding plate 1601 and the second shielding plate 1602 are fitted around the outer periphery of the first booster station 2 and the second booster station 4, with gaps between them. By providing the first shielding plate 1601 and the second shielding plate 1602, the sliding subsea booster station device can be prevented from being eroded by seawater and impacted by seabed organisms, thus avoiding damage to the sliding subsea booster station device.

[0163] In addition, a gap is left between adjacent second shielding plates 1602, and they are connected by reinforcing rods 1604. The reinforcing rods 1604 reinforce the two adjacent second shielding plates 1602, so that the connected second shielding plates 1602 can withstand greater forces and loads.

[0164] Furthermore, the support rod 1603 is connected to the anti-sinking plate 1 via a connecting ring 1605. Multiple support rods 1603 can be provided, with one end of each rod spaced apart on the second baffle plate 1602, and the other end connected to the connecting ring 1605. Connecting the support rod 1603 to the anti-sinking plate 1 via the connecting ring 1605 increases the reliability and stability of the connection between the support rod 1603 and the anti-sinking plate 1. In addition, the connecting ring 1605 can disperse stress concentration at the connection point, reducing the impact of localized stress on the support rod 1603 and the anti-sinking plate 1.

[0165] In this embodiment, taking the spiral anchor 6 as an example, the working principle of the sliding underwater booster station device is as follows:

[0166] like Figure 1 and Figure 8 As shown, multiple spiral anchors 6 are used to fix the anti-sinking plate 1 to the seabed 10 through the sleeves 101 that pass through the anti-sinking plate 1.

[0167] Multiple floating wind turbines 7 on sea level 11 are connected to the first mounting slot 402 of the second booster station 4 via the first cable 8, so that the energy generated by the floating wind turbines 7 is transmitted to the second booster station 4 via the first cable 8. The second mounting slot 403 of the second booster station 4 is connected to the third mounting slot 201 of the first booster station 2 via the second cable 9, so that the energy collected by the second booster station 4 is transmitted to the first booster station 2, so that the first booster station 2 can centrally transmit the energy.

[0168] By setting a sliding mechanism 401 on the second booster station 4, the second booster station 4 can slide along the length direction of the guide rail mechanism 3, and the first booster station 2 and the second booster station 4 are connected by a damping member 5, which provides a certain buffering effect for the second booster station 4 during the sliding process.

[0169] When the floating wind turbine 7 moves with the waves, it pulls the first cable 8. When the first cable 8 is subjected to external loads, it pulls the second booster station 4, causing the sliding mechanism 401 of the second booster station 4 to slide on the guide rail mechanism 3. During the sliding process of the second booster station 4 on the guide rail mechanism 3, the damping component 5 applies a certain damping force to the second booster station 4 to buffer the moving speed of the second booster station 4, thereby releasing the tension of the first cable 8, reducing fatigue damage at fatigue hotspots, effectively avoiding fracture at fatigue hotspots, reducing the risk of economic losses, and improving the safety of the sliding underwater booster station device. At the same time, by setting up the anti-sinking plate 1 and the spiral anchor 6, the first booster station 2 and the second booster station 4 are set underwater, eliminating the need to erect steel pipe frames and guide frames to set up the booster stations at sea, thus saving steel, simplifying the installation steps, and reducing costs.

[0170] In this embodiment, taking the spiral anchor 6 as an example, the installation method of the sliding submersible booster station device is as follows:

[0171] The first booster station 2 is fixed on the top surface of the anti-sinking plate 1. The first booster station 2 and the anti-sinking plate 1 are transported to the designated location by a transport device, ready for sinking and installation.

[0172] The anti-sinking plate 1 is hoisted and sunk onto the seabed 10 using a hoisting device;

[0173] The spiral anchor 6 is passed through the sleeve 101, and the spiral anchor 6 is rotated to penetrate the seabed 10 to a specified depth, with the top of the spiral anchor 6 protruding from the sleeve 101.

[0174] Grouting is performed inside the sleeve 101 to fix the spiral anchor 6 to the sleeve 101.

[0175] The second booster station 4 and the second slide rail 302 are hoisted and lowered to the designated position using a hoisting device. The sliding mechanism 401 on the second booster station 4 is installed on the first slide rail 301 of the anti-sinking plate 1. Then, the second slide rail 302 is placed on top of the first slide rail 301, forming a groove 303 between the first slide rail 301 and the second slide rail 302. The sliding mechanism 401 is adapted to move within the groove 303. The anti-collision plate 14 is welded to the upper surface of the anti-sinking plate 1. The second shielding plate 1 is then placed on top of the second shielding plate 1. 602 is welded to the first shielding plate 1601, and the support rod 1603 is welded to the second shielding plate 1602; the second booster station 4 is installed underwater to facilitate the hoisting of the anti-sinking plate 1 by the hoisting device. If the second booster station 4 is installed on the guide rail mechanism 3 in advance, firstly, the weight of the anti-sinking plate 1 will increase due to the increase of the second booster station 4. Secondly, the second booster station 4 is slidably set on the guide rail mechanism 3, and the second booster station 4 will shake during the hoisting process, which is not convenient for hoisting.

[0176] The two ends of the damping element 5 are connected to the first booster station 2 and the second booster station 4 respectively. One side of the second booster station 4 is connected to the first cable 8 of the floating wind turbine 7, and the other side of the second booster station 4 is connected to the first booster station 2 via the second cable 9.

[0177] It should be noted that during installation, the height from the top of the spiral anchor 6 to the sleeve 101 should be greater than or equal to 0.5m to avoid settlement of the spiral anchor 6 before grouting or before the grouting is fully solidified.

[0178] According to an embodiment of the present invention, on the other hand, such as Figure 8 As shown, an offshore wind power system is also provided, including: a floating wind turbine 7 and a skid-slip subsea booster station device, with one side of the second booster station 4 connected to the first cable 8 of the floating wind turbine 7.

[0179] This offshore wind power system connects the floating wind turbine 7 on sea level 11 to the second booster station 4 via the first cable 8, so that the energy generated by the floating wind turbine 7 can be transmitted to the second booster station 4 via the first cable 8. The second mounting slot 403 of the second booster station 4 is connected to the third mounting slot 201 of the first booster station 2 via the second cable 9, so that the energy collected by the second booster station 4 can be transmitted to the first booster station 2, so that the first booster station 2 can concentrate and transmit the energy to the land. When the floating wind turbine 7 moves with the waves, it pulls the first cable 8. When the first cable 8 is subjected to external loads, it pulls the second booster station 4, causing the sliding mechanism 401 of the second booster station 4 to slide on the guide rail mechanism 3. During the sliding process of the second booster station 4 on the guide rail mechanism 3, the damping component 5 applies a certain damping force to the second booster station 4 to buffer the moving speed of the second booster station 4, thereby releasing the tension of the first cable 8, reducing fatigue damage at fatigue hotspots, effectively avoiding fracture at fatigue hotspots, reducing the risk of economic losses, and improving the safety of the sliding underwater booster station device. At the same time, by setting up the anti-sinking plate 1 and the fixing mechanism, the first booster station 2 and the second booster station 4 are set underwater, eliminating the need to erect steel pipe frames and guide frames to set up the booster stations at sea, thus saving steel, simplifying the installation steps, and reducing costs.

[0180] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A sliding-type subsea booster station device, characterized in that, include: Anti-sinking plate (1), the top surface of the anti-sinking plate (1) is provided with a first booster station (2) and a guide rail mechanism (3), the first booster station (2) is fixedly installed on one side of the guide rail mechanism (3) in the length direction; The second booster station (4) is provided with a sliding mechanism (401), which is slidably connected to the guide rail mechanism (3). One side of the second booster station (4) is adapted to be connected to the first cable (8) of the floating fan (7), and the other side of the second booster station (4) is adapted to be connected to the first booster station (2) through a damping element (5). The fixing mechanism has one end adapted to fix the anti-sinking plate (1) and the other end adapted to be fixed on the seabed (10); The fixing mechanism is a suction cylinder (12), the top of the suction cylinder (12) is fixedly connected to the bottom surface of the anti-sinking plate (1), and the bottom of the suction cylinder (12) is suitable for fixing to the seabed (10); The suction cylinder (12) includes a cylinder (1201), a top cover (1202), a pumping device (1203), a column (1204), multiple wing plates (1205), and multiple reinforcing ribs (1206); the top cover (1202) is fixedly installed on the top of the cylinder (1201) to close the cylinder (1201); the pumping device (1203) is installed on the top cover (1202); the column (1204) is fixedly installed at the central axis of the top cover (1202); the wing plates (1205) extend radially from the column (1204) to the edge of the top cover (1202); multiple wing plates (1205) are radially and equidistantly distributed on the upper surface of the top cover (1202) and are connected to each other by the reinforcing ribs (1206).

2. The sliding subsea booster station device according to claim 1, characterized in that, The guide rail mechanism (3) includes a first slide rail (301) and a second slide rail (302). The first slide rail (301) is fixed on the top surface of the anti-sinking plate (1), and the second slide rail (302) covers the first slide rail (301). A groove (303) is formed between the first slide rail (301) and the second slide rail (302). The sliding mechanism (401) is located in the groove (303) and can slide along the groove (303).

3. The sliding subsea booster station device according to claim 1, characterized in that, The guide rail mechanism (3) includes two sets, which are arranged at a relative interval.

4. The sliding subsea booster station device according to claim 2, characterized in that, The sliding mechanism (401) is a roller. The rollers are respectively provided on the opposite sides of the second booster station (4). The connecting shaft of the roller is rotatably connected to the second booster station (4). The roller is located in the sliding groove (303).

5. The sliding subsea booster station device according to claim 1, characterized in that, The second booster station (4) has a plurality of first mounting slots (402) on one side, and the plurality of first mounting slots (402) are adapted to be connected to the first cable (8) of the floating fan (7) respectively; the second booster station (4) has a second mounting slot (403) on the other side, and the first booster station (2) has a third mounting slot (201) corresponding to the second booster station (4), and the second mounting slot (403) is connected to the third mounting slot (201) via the second cable (9).

6. The sliding subsea booster station device according to claim 5, characterized in that, The first booster station (2) is provided with connection points (202) on both sides of the third mounting groove (201). There are multiple damping components (5). One end of each of the multiple damping components (5) is connected to the connection point (202) respectively, and the other end of each of the multiple damping components (5) is connected to the second booster station (4).

7. The sliding subsea booster station device according to any one of claims 1 to 6, characterized in that, The anti-sinking plate (1) is provided with a plurality of sleeves (101) that penetrate the anti-sinking plate (1). The fixing mechanism is a spiral anchor (6), which includes a rod (601) and a spiral blade (602). The spiral blade (602) is provided on the outer surface of the rod (601) along its axial direction. One end of the spiral anchor (6) is adapted to be fixed in the sleeve (101), and the other end is adapted to be placed on the seabed (10).

8. The sliding subsea booster station device according to claim 7, characterized in that, The end of the rod (601) is tapered.

9. The sliding subsea booster station device according to claim 7, characterized in that, The spiral blades (602) are provided in multiples, and the multiple spiral blades (602) are spaced apart along the axial direction of the rod (601).

10. The sliding subsea booster station device according to claim 7, characterized in that, The diameter of the rod (601) is 60mm-80mm.

11. The sliding subsea booster station device according to claim 10, characterized in that, The projected diameter of the helical blade (602) along the axial direction of the rod (601) is greater than or equal to three times the diameter of the rod (601), and the projected diameter of the helical blade (602) along the axial direction of the rod (601) is less than or equal to four times the diameter of the rod (601).

12. The sliding subsea booster station device according to claim 7, characterized in that, The spiral anchor (6) and the sleeve (101) are connected by grouting.

13. The sliding subsea booster station device according to claim 1, characterized in that, Four suction cylinders (12) are provided, which are respectively installed at the four corners of the anti-sinking plate (1); the height of the cylinder (1201) does not exceed three times the diameter of the cylinder (1201); the width of the anti-sinking plate (1) is greater than three times the diameter of the cylinder (1201).

14. The sliding subsea booster station device according to any one of claims 1 to 6, characterized in that, The anti-sinking plate (1) is provided with a plurality of sleeves (101) that penetrate the anti-sinking plate (1). The fixing mechanism is a fixed pile (13), which is set one-to-one with the sleeve (101). One end of the fixed pile (13) is located inside the sleeve (101), and the other end is suitable for fixing inside the seabed (10) and fixing the anti-sinking plate (1) to the seabed (10).

15. The sliding subsea booster station device according to claim 14, characterized in that, One end of the fixed pile (13) is provided with a cavity (1301) communicating with that end. The end of the fixed pile (13) away from the cavity (1301) is located inside the sleeve (101), and the end of the fixed pile (13) away from the cavity (1301) is provided with a top cover (1202) suitable for sealing the cavity (1301); the sleeve (101) is located at the corner of the anti-sinking plate (1).

16. The sliding subsea booster station device according to any one of claims 1 to 6, characterized in that, The anti-sinking plate (1) is provided with multiple lifting lugs (102).

17. The sliding subsea booster station device according to claim 1, characterized in that, The anti-sinking plate (1) includes a plate body (103) and a skirt plate (104); the outer edge of the lower surface of the plate body (103) extends outward to form an annular skirt plate (104).

18. The sliding subsea booster station device according to claim 1, characterized in that, The sliding submersible booster station device also includes multiple anti-collision plates (14), which are arranged around the upper surface of the anti-sinking plate (1).

19. The sliding subsea booster station device according to claim 18, characterized in that, The sliding submersible booster station device also includes a truss (15), which includes multiple horizontally arranged first connecting rods (1501) connected end to end, multiple vertically arranged second connecting rods (1502) and multiple inclined third connecting rods (1503); the first connecting rods (1501) are arranged corresponding to the outer edge of the anti-sinking plate (1); one end of the second connecting rod (1502) is connected to the connection of two adjacent first connecting rods (1501), and the other end is connected to the upper surface of the anti-sinking plate (1); one end of the third connecting rod (1503) is connected to the connection of the first connecting rod (1501) and the second connecting rod (1502), and the other end is connected to the corner of the anti-sinking plate (1).

20. The sliding subsea booster station device according to claim 19, characterized in that, The anti-collision plates (14) are arranged opposite each other on the upper surface of the anti-sinking plate (1), and the second connecting rod (1502) is located in the interval between adjacent anti-collision plates (14); the height of the second connecting rod (1502) is higher than the height of the anti-collision plate (14).

21. The sliding subsea booster station device according to claim 19, characterized in that, A first shielding plate (1601) is provided above the space enclosed by the first connecting rod (1501). A second shielding plate (1602) is provided around the first shielding plate (1601) and is inclined toward the outer edge of the anti-sinking plate (1). The second shielding plate (1602) is located on the periphery of the second connecting rod (1502), and each second shielding plate (1602) is connected to the upper surface of the anti-sinking plate (1) through a support rod (1603).

22. The sliding subsea booster station device according to claim 21, characterized in that, A gap is left between adjacent second shields (1602), and they are connected by reinforcing rods (1604).

23. The sliding subsea booster station device according to claim 22, characterized in that, The support rod (1603) is connected to the anti-sinking plate (1) via a connecting ring (1605).

24. An offshore wind power system, characterized in that, include: Floating wind turbine (7); According to any one of claims 1 to 23, one side of the second submersible booster station (4) is connected to the first cable (8) of the floating wind turbine (7).

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