Floating jack-up offshore electrical platform and method of installation thereof

Abstract

The present application relates to the field of offshore electric platform, especially to a floating self-elevating offshore electric platform and its installation method, aiming at the problems of the existing platform when facing the wind and wave swing, a floating self-elevating offshore electric platform and its installation method are provided, the left and right sides of the platform are respectively provided with stabilizing wings, the front and rear ends of the floating platform bottom are respectively rotationally connected with flow-approaching plates, one end of the flow-approaching plate is rotationally connected with a flow-approaching impeller, and the other end is provided with a plurality of thrust impellers, the stabilizing wings can better conform to the sea current when facing the sea current impact, improve the stability of the platform, and the flow-approaching wheel can drive the thrust impeller to rotate when rotating under the impact of the sea current, generate thrust and resist the sea current, and thus enhance the stability of the platform and reduce the platform swing.

Description

Technical Field

[0001] This invention relates to the field of offshore electrical platforms, and more specifically to the field of power supply and control system platforms for offshore wind power or oil and gas extraction, and particularly to a floating self-elevating offshore electrical platform and its installation method. Background Technology

[0002] As the global energy structure accelerates its transition to clean energy, offshore wind power, as a crucial component of renewable energy, is experiencing continuous expansion in its development scale, placing higher demands on supporting offshore electrical platforms. Floating self-elevating offshore electrical platforms, as an innovative type of offshore infrastructure, have become key equipment in the offshore wind power sector due to their unique design concept and superior performance. From an energy development perspective, these platforms lay the foundation for the large-scale and intensive development of offshore wind power. The platforms can integrate various electrical devices to achieve functions such as wind power collection, conversion, and transmission, improving the efficiency and reliability of power transmission. Furthermore, the platforms possess a certain degree of scalability, enabling collaborative operation with surrounding wind power equipment and energy storage systems to build an efficient offshore energy network. This promotes the intelligent and networked development of offshore wind power, playing a significant role in driving global energy transition and sustainable development.

[0003] Existing technology provides patent application number 2020228763226, which discloses a self-floating and self-elevating offshore electrical platform, including an upper module and a box structure set at the bottom of the upper module. Several hydraulic lifting devices are arranged around the perimeter of the box structure. Each hydraulic lifting device cooperates with a corresponding support column set inside the box structure to control the rising and falling of the support column or the electrical platform. Several grouting devices for injecting concrete into each support column are installed inside the box structure, and the bottom of each support column is open. Its advantages include a reasonable structural form, convenient transportation and installation, overcoming the shortcomings of traditional electrical platforms and self-elevating platforms, and solving problems such as short construction windows, low construction efficiency, and high construction costs at sea. However, because the platform operates at sea, it faces harsh marine environments and sudden weather changes. When faced with the impact of wind and waves, the platform's swaying can easily cause instability in the hydraulic system and affect the normal operation of the platform's electrical equipment. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a floating self-elevating offshore electrical platform and its installation method, which effectively solves the problems mentioned in the background art.

[0005] The technical solution adopted by the present invention to solve the above problems is as follows:

[0006] A floating self-elevating offshore electrical platform includes a platform and a support frame. Floating platforms are respectively provided on the left and right sides of the lower side of the support frame, and hydraulic jacks are installed between the floating platforms and the support frame. Stabilizing wings are respectively provided on the left and right sides of the platform, and folding frames are installed between the stabilizing wings and the platform. The stabilizing wings can be retracted inward through the folding frames.

[0007] The stabilizer has a structure that is thin at both ends and thick in the middle. The outer surface of the stabilizer is a convex arc and the inner surface is a concave arc. Multiple auxiliary holes are opened on the convex surface of the stabilizer, and the other end of the auxiliary holes penetrates the concave surface.

[0008] The front and rear ends of the bottom of the floating platform are rotatably connected to the flow-inducing plates. One end of the flow-inducing plate is rotatably connected to the flow-inducing impeller, and the other end is equipped with multiple thrust impellers. When the flow-inducing impeller rotates, it can drive the multiple thrust impellers to rotate faster.

[0009] Furthermore, the opening of the auxiliary hole on the convex surface is larger than the opening on the concave surface.

[0010] Furthermore, the folding frame includes a first folding rod and a second folding rod respectively hinged to the lower side of the platform. A first hinge rod is provided on the lower side of the first folding rod, and the other ends of the parallel first folding rod and the first hinge rod are hinged to a mounting plate. A second hinge rod is hinged to the other end of the first hinge rod. The second hinge rod is parallel to the corresponding mounting plate, and the other end of the second hinge rod is hinged to the first folding rod. The other end of the second folding rod is hinged to the other end of the first hinge rod. A secondary rod is fixedly connected to the end of the second folding rod that is hinged to the platform. A hydraulic telescopic rod is provided on one side of the secondary rod. The telescopic end of the hydraulic telescopic rod is hinged to the other end of the secondary rod, and the fixed end of the hydraulic telescopic rod is hinged to the platform.

[0011] Furthermore, the surface of the mounting plate is vertically provided with a movable slide groove, and the upper and lower sides of the movable slide groove are slidably connected to a pressure slider and a movable slider, respectively. A sliding hole is provided in the middle of the movable slider, and an adjusting screw is fitted in the sliding hole. The threaded part of the adjusting screw is threadedly connected to the pressure slider, and the lower side of the adjusting screw is rotatably connected to the bottom of the mounting plate.

[0012] A pressure spring is provided between the pressure slider and the moving slider, and the pressure springs are respectively sleeved on the surface of the adjusting screw.

[0013] The upper side of the concave surface of the stabilizer is hinged to the corresponding mounting plate, and the lower side of the concave surface is hinged to a movable rod, the other end of which is hinged to a movable slider.

[0014] Furthermore, the lower end of each adjusting screw is coaxially fixedly connected to a pulley, and a transmission belt is sleeved between the two corresponding pulleys. An adjusting motor is provided on the lower side of one of the adjusting screws. The adjusting motor is fixedly connected to the corresponding mounting plate, and the power output end of the adjusting motor is coaxially fixedly connected to the bottom of the corresponding adjusting screw.

[0015] Furthermore, the support frame includes two sets of connecting frame structures arranged side by side;

[0016] The connecting frame structure includes multiple connecting frames arranged side by side, with a reinforcing frame fixedly connected between two adjacent connecting frames, and a horizontal bar fixedly connected between corresponding left and right connecting frames.

[0017] Side plates are fixedly connected to the front and rear sides of the upper end of the support frame, and the upper ends of the side plates are fixedly connected to the platform. Support beams are bolted between the corresponding front and rear side plates.

[0018] Furthermore, the floating platform includes a floating body and a base plate fixedly connected to the lower end of the floating body. A support rod is fixedly connected between two adjacent base plates. A bearing plate is fixedly connected to the upper end of the floating body. Hydraulic jacks are fixedly fixed to the upper end of the bearing plate. Traction cables are connected to both sides of the lower end of the base plate. Pile foundations are set at the four corners below the platform. The other end of the traction cable is fixedly connected to the pile foundation.

[0019] Furthermore, a rotating shaft is fixedly connected to the upper end of the air intake plate, and the rotating shaft is located near the air intake impeller;

[0020] An internal gear ring is fixedly connected to one end of the impeller facing the thrust plate. Multiple planetary gears mesh on the inner side of the internal gear ring. A drive shaft is fixedly connected to the middle part of each of the multiple planetary gears. The other end of the drive shaft is fixedly connected to the thrust impeller on the same axis. A triangular plate is rotatably connected to the surface of the drive shaft. The triangular plate is fixedly connected to one end of the thrust plate.

[0021] Furthermore, the end of the impeller furthest from the air intake plate has an inclined conical surface.

[0022] This invention features a novel structure, ingenious design, and simple and convenient operation, offering the following advantages compared to existing technologies:

[0023] 1. When facing the impact of ocean currents, the pressure difference between the convex and concave surfaces of the stabilizing wing generates an adsorption force pointing towards the convex surface, forming the basic resistance against the lateral sway of the platform. The stabilizing wing can better conform to the ocean current, improving its stabilizing effect on the platform. In addition, a folding frame is installed between the stabilizing wing and the platform, allowing the stabilizing wing to be retracted inward through the folding frame, which facilitates the control of the use and retraction of the stabilizing wing.

[0024] 2. When the upstream impeller rotates, it drives the planetary gear to rotate faster through the internal gear ring. When the planetary gear rotates, it drives the thrust impeller to rotate through the transmission shaft. When the thrust impeller rotates, it pushes the ocean current through the thrust blades on the circumferential surface, generating thrust to counteract the ocean current, thereby enhancing the stability of the platform and reducing platform sway. Attached Figure Description

[0025] Figure 1 This is a 3D physical image of a floating self-elevating offshore electrical platform according to the present invention.

[0026] Figure 2 This is a schematic diagram of the overall structure of a floating self-elevating offshore electrical platform according to the present invention.

[0027] Figure 3 This is a top view schematic diagram of the overall structure of a floating self-elevating offshore electrical platform according to the present invention.

[0028] Figure 4 This is a first schematic diagram of the stabilizing wing installation structure of a floating self-elevating marine electrical platform according to the present invention.

[0029] Figure 5 This is a second schematic diagram of the stabilizing wing installation structure of a floating self-elevating marine electrical platform according to the present invention.

[0030] Figure 6 This is a schematic diagram of the adjustable motor transmission structure of a floating self-elevating offshore electrical platform according to the present invention.

[0031] Figure 7 This invention relates to a floating, self-elevating offshore electrical platform. Figure 6 A magnified view of the U-shaped area in the diagram.

[0032] Figure 8 This invention relates to a floating, self-elevating offshore electrical platform. Figure 7 A schematic diagram of the auxiliary hole structure.

[0033] Figure 9 This is a schematic diagram of the concave surface structure of the stabilizing wing of a floating self-elevating marine electrical platform according to the present invention.

[0034] Figure 10 This is a schematic diagram of the support frame structure of a floating self-elevating offshore electrical platform according to the present invention.

[0035] Figure 11 This is a schematic diagram of the connecting frame structure of a floating self-elevating offshore electrical platform according to the present invention.

[0036] Figure 12 This is a schematic diagram of the installation structure of the current-advancing wheel and thrust wheel of a floating self-elevating offshore electrical platform according to the present invention.

[0037] Figure 13 This is a schematic diagram of the upstream conical structure of a floating self-elevating offshore electrical platform according to the present invention.

[0038] Figure 14 This is a schematic diagram of the meshing structure of the internal gear ring and planetary gear of a floating self-elevating offshore electrical platform according to the present invention.

[0039] Numbering in the diagram: 1-Platform, 2-Stabilizing wing, 3-First folding rod, 4-Second folding rod, 5-First hinge rod, 6-Second hinge rod, 7-Mounting plate, 8-Moving rod, 9-Pressure slider, 10-Adjusting screw, 11-Pressure spring, 12-Moving slider, 13-Auxiliary hole, 14-Secondary rod, 15-Hydraulic telescopic rod, 16-Adjusting motor, 17-Support beam, 18-Side plate, 19-Support frame, 20-Frame-shaped frame. 21-Hydraulic jack, 22-Floating platform, 23-Base plate, 24-Connecting frame, 25-Reinforcing frame, 26-Horizontal bar, 27-Action vane, 28-Action impeller, 29-Conical surface, 30-Triangular plate, 31-Internal gear ring, 32-Planetary gear, 35-Drive shaft, 36-Thrust impeller, 37-Rotating shaft, 38-Action vane, 39-Thrust vane, 40-Traction cable, 41-Pile foundation, 42-Pulley, 43-Drive belt. Detailed Implementation

[0040] The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0041] like Figure 1-14 As shown, this invention provides a floating self-elevating offshore electrical platform, belonging to the field of offshore electrical platforms, specifically relating to a power supply and control system operation platform 1 for offshore wind power or oil and gas extraction. The platform includes a platform 1 and a support frame 19. Floating platforms 22 are respectively provided on the left and right sides of the lower side of the support frame 19. The platform 1 is supported by the support frame 19 and floats in seawater via the floating platforms 22. Hydraulic jacks are installed between the floating platforms 22 and the support frame 19 for adjusting the height of the platform 1. Stabilizing wings 2 are respectively provided on the left and right sides of the platform 1. Folding frames are installed between the stabilizing wings 2 and the platform 1. The stabilizing wings 2 can be retracted inwards via the folding frames, facilitating the use and retraction of the stabilizing wings. The swivel wings enhance the stability of the platform 1 when facing wind and waves at sea, improving the stability of the platform 1 during operation and the normal operation of equipment on the platform 1.

[0042] like Figure 4 , Figure 8 and Figure 9As shown, the stabilizer 2 has a structure that is thin at both ends and thick in the middle. The outer surface of the stabilizer 2 is a convex arc, and the inner surface is a concave arc. Both ends of the convex surface of the stabilizer 2 have a large facing surface when facing the seawater. When the ocean current impacts the convex surface, according to the principle of fluid continuity, the ocean current will flow along the arc surface of the convex surface. Because the shape of the convex surface makes the flow path of the ocean current longer, under a constant flow rate, the flow velocity of the ocean current on the convex surface will be faster, just like the flow velocity of water increases when flowing through a narrow pipe. The flow velocity of the ocean current in the narrow space of the convex surface is significantly increased compared to the open sea surface. According to Bernoulli's principle, the faster the fluid velocity, the lower the pressure; therefore, when the ocean current velocity increases on the convex surface, the pressure at the convex surface is higher. The pressure will decrease, forming a low-pressure area; while the concave surface of the stabilizing wing 2 has a relatively slower flow velocity and higher pressure, which will create a pressure difference between the convex and concave surfaces of the stabilizing wing 2. The pressure difference between the convex and concave surfaces will generate an adsorption force pointing towards the convex surface. When the ocean current hits the convex surface head-on, the pressure difference will increase due to the increased flow velocity, and this adsorption force will also be strengthened accordingly. This pressure difference causes the stabilizing wing 2 to generate an adsorption force in the direction of the convex surface, i.e., the direction of the ocean current, which is equivalent to "pulling" the stabilizing wing 2 towards the ocean current, forming the basic resistance against the lateral sway of the platform 1. The stabilizing wing 2 can better fit with the ocean current, improve the stabilization effect on the platform 1, and make the platform 1 in the seawater. The stronger adsorption force can reduce the swaying and displacement of the platform 1 under the action of the ocean current.

[0043] Furthermore, to enhance the effectiveness of the stabilizing wing 2, multiple auxiliary holes 13 are provided on the convex surface of the stabilizing wing 2. The other end of the auxiliary holes 13 penetrates the concave surface. When seawater impacts the convex surface, it is ejected through the auxiliary holes 13. Since the opening of the auxiliary holes 13 is smaller than that of the concave surface, the seawater flows faster when passing through the auxiliary holes 13, thereby increasing the impact force. The increased impact force impacts the seawater on the concave surface, providing a reaction force to the platform 1 to offset part of the impact of the seawater, further improving the stability of the platform 1. Moreover, the ocean current has a clear flow direction. When the ocean current flows through the stabilizing wing 2, the overall water flow follows a certain path from one side of the stabilizing wing 2 to the other side. Although a low-pressure area is formed at the convex adsorption holes, the fluid always tends to flow along the mainstream direction rather than arbitrarily changing direction to fill the low-pressure area. In other words, the mainstream movement trend of the ocean current will inhibit the reverse flow of water from the high-pressure area of ​​the concave surface to the low-pressure area of ​​the convex surface.

[0044] Furthermore, such as Figures 12-14 As shown, the front and rear ends of the bottom of the floating platform 22 are rotatably connected to the flow-facing plate 27. One end of the flow-facing plate 27 is rotatably connected to the flow-facing impeller 28, and the other end is equipped with multiple thrust impellers 36. When the flow-facing impeller 28 rotates, it can drive the multiple thrust impellers 36 to rotate faster. Then, when the thrust impellers 36 rotate faster, they interact with the seawater to generate thrust to meet the ocean current, thereby offsetting part of the impact of the ocean current.

[0045] Furthermore, in order to enhance the function of the auxiliary hole 13, the opening of the auxiliary hole 13 on the convex surface is larger than the opening on the concave surface. According to Bernoulli's principle, when seawater enters the convex opening and rushes out through the small opening on the concave surface, the flow velocity is further increased, which further enhances the impact force of seawater on the concave surface and increases the corresponding reaction force.

[0046] like Figure 5 As shown, the folding frame includes a first folding rod 3 and a second folding rod 4, which are respectively hinged to the lower side of the platform 1. A first hinge rod 5, parallel to each other, is provided on the lower side of the first folding rod 3. The other ends of the parallel first folding rod 3 and the first hinge rod 5 are hinged to a mounting plate 7. A second hinge rod 6 is hinged to the other end of the first hinge rod 5. The second hinge rod 6 and the corresponding mounting plate 7 are parallel to each other. The other end of the second hinge rod 6 is hinged to the first folding rod 3, and the other end of the second folding rod 4 is hinged to the other end of the first hinge rod 5. The first folding rod 3, the first hinge rod 5, the second hinge rod 6, and the mounting plate 7 form a parallelogram structure. A secondary rod 14 is fixedly connected to the end of the second folding rod 4 that is hinged to the platform 1. A hydraulic telescopic rod 15 is provided on one side of the secondary rod 14. The telescopic end of the hydraulic telescopic rod 15 is hinged to the other end of the secondary rod 14, and the fixed end of the hydraulic telescopic rod 15 is hinged to the platform 1. Figure 5 In the extended state, when the stabilizer wing 2 needs to be retracted, the hydraulic telescopic rod 15 can be controlled to retract, and the auxiliary rod 14 can be pulled to drive the second folding rod 4 to swing upward. When the second folding rod 4 swings upward, it causes the parallelogram structure formed by the first folding rod 3, the first hinge rod 5, the second hinge rod 6 and the mounting plate 7 to deform and move upward. With the assistance of the first folding rod 3, the mounting plate 7 is driven to flip and retract inward, further driving the stabilizer wing 2 to close inward, thus completing the retraction of the stabilizer wing 2.

[0047] Furthermore, such as Figure 6 and Figure 7As shown, to reduce the swaying force transmitted to the platform 1 when the stabilizer wing 2 is impacted by seawater, a vertical sliding groove is provided on the surface of the mounting plate 7. A pressure slider 9 and a sliding slider 12 are slidably connected to the upper and lower sides of the sliding groove, respectively. A sliding hole is provided in the middle of the sliding slider 12, and an adjusting screw 10 is fitted inside the sliding hole, allowing the pressure spring 11 to slide vertically on the surface of the adjusting screw 10 without being affected by the rotation of the adjusting screw 10. The threaded portion of the adjusting screw 10 is threadedly connected to the pressure slider 9, and the lower side of the adjusting screw 10 is rotatably connected to the bottom of the mounting plate 7. A pressure spring 11 is provided between the pressure slider 9 and the sliding slider 12, and the pressure spring 11 is fitted onto the surface of the adjusting screw 10. The upper side of the concave surface of 2 is hinged to the corresponding mounting plate 7, and the lower side of the concave surface is hinged to the movable rod 8. The other end of the movable rod 8 is hinged to the movable slider 12. When the stabilizing wing 2 is impacted by seawater, if the impact force of the seawater is greater than the elastic force of the pressure spring 11, the stabilizing wing 2 can swing inward and further compress the pressure spring 11, thus buffering the impact force of the seawater. By rotating the adjusting screw 10, the pressure slider 9 can be moved towards the pressure spring 11. By compressing the pressure spring 11, the pressure spring 11 is compressed, further increasing the resistance of the pressure spring 11. During use, the compression degree of the pressure spring 11 can be adjusted according to the size of the waves and the estimated impact force.

[0048] Furthermore, to facilitate the control of the adjusting screw 10 rotation by construction personnel, pulleys 42 are coaxially fixedly connected to the lower ends of the adjusting screw 10, and a transmission belt 43 is sleeved between the corresponding two pulleys 42. An adjusting motor 16 is provided on the lower side of one of the adjusting screws 10. The adjusting motor 16 is fixedly connected to the corresponding mounting plate 7. The power output end of the adjusting motor 16 is coaxially fixedly connected to the bottom of the corresponding adjusting screw 10. By controlling the rotation of the adjusting motor 16, the adjusting screws 10 on both sides can be driven to rotate synchronously under the transmission of the pulleys 42 and the transmission belt 43, thereby facilitating the simultaneous control of the movement of the corresponding two pressure sliders 9. Moreover, the adjusting motor 16 is a waterproof motor with remote control function, which can be controlled by remote control to start and stop the motor.

[0049] like Figure 10 and Figure 11As shown, the support frame 19 includes two sets of connecting frame structures arranged side by side. The lower end of the connecting frame structure is fixedly connected to a frame-shaped frame 20 for connecting the overall connecting frame structure. The telescopic end of the hydraulic jack is fixedly connected to the frame-shaped frame 20. The connecting frame structure includes multiple connecting frames 24 arranged side by side. A reinforcing frame 25 is fixedly connected between two adjacent connecting frames 24. The reinforcing frame 25 is formed by welding two intersecting diagonal rods together. Both ends are welded and fixed to the connecting frames 24 to improve the supporting force. The connecting frame 24 has a Y-shaped structure. The two branches at the upper end are fixedly connected to the support beam 17 to improve the stability by adding connecting legs. A transverse rod 26 is fixedly connected between the left and right corresponding connecting frames 24 to increase the lateral traction force. Side plates 18 are fixedly connected to the front and rear sides of the upper end of the support frame 19. The upper ends of the side plates 18 are fixedly connected to the platform 1. The front and rear corresponding side plates 18 are connected to the support beam 17 by bolts to improve the overall supporting force of the platform 1 and the stability of the connection between the platform 1 and the support frame 19.

[0050] Furthermore, the floating platform 22 includes a floating body and base plates 23 fixedly connected to the lower end of the floating body. Support rods are fixedly connected between adjacent base plates 23. A bearing plate is fixedly connected to the upper end of the floating body, and hydraulic jacks 21 are fixedly fixed to the upper end of the bearing plate. Traction cables 40 are connected to both sides of the lower end of the base plates 23. Pile foundations 41 are respectively installed at the four corners below the platform 1, and the other ends of the traction cables 40 are fixedly connected to the pile foundations 41. Figure 2 and Figure 3 As shown, the pile foundation 41 is connected to the seabed rock layer and acts as an anchor point. It is connected to the bottom plate 23 of the floating platform 22 through the traction cable 40, providing tension to the platform 1. The buoyancy provided by the floating platform 22 provides upward tension to the platform 1. The two opposing tensions cancel each other out, which increases the overall tension of the traction cable 40 and further improves the stability of the platform 1 in the sea. The traction cable 40 also pulls the floating platform 22 into the seawater, which lowers the overall center of the platform 1 and further improves the stability of the platform 1 when facing waves.

[0051] Furthermore, a rotating shaft 37 is fixedly connected to the upper end of the anti-current plate 27. The rotating shaft 37 is located near the anti-current impeller 28. The end of the anti-current plate 27 near the anti-current impeller 28 is thicker than the end near the thrust impeller 36. The rotating shaft 37 is close to the anti-current impeller 28, so that the overall center of gravity is biased towards the anti-current impeller 28. When the seawater impacts the anti-current plate 27, it can effectively blow the anti-current plate 27 to a state parallel to the direction of the sea current, so that the anti-current impeller 28 faces the impact of the sea current and rotates under the impact of the sea current.

[0052] An internal gear ring 31 is fixedly connected to one end of the impeller 28 facing the flow-facing plate 27. Multiple planetary gears 32 are meshed on the inner side of the internal gear ring 31. A drive shaft 35 is fixedly connected to the middle part of each of the multiple planetary gears 32. The other end of the drive shaft 35 is fixedly connected to the thrust impeller 36 on the same axis. A triangular plate 30 is rotatably connected to the surface of the drive shaft 35. The triangular plate 30 is fixedly connected to one end of the flow-facing plate 27. When the impeller 28 rotates, the internal gear ring 31 drives the planetary gears 32 to rotate faster. When the planetary gears 32 rotate, they can drive the thrust impeller 36 to rotate through the drive shaft 35. When the thrust impeller 36 rotates, the thrust blades 39 on the circumferential surface push the ocean current. The thrust blades 39 are in an inclined state, which can increase the contact surface with the ocean current and push the ocean current more effectively, thereby increasing the thrust and ocean current resistance, thus enhancing the stability of the platform 1 and reducing the shaking of the platform 1.

[0053] Furthermore, the end of the impeller 28 away from the impeller plate 27 is an inclined conical surface 29. When the ocean current impacts the impeller 28, the conical surface 29 can effectively disperse the ocean current, so that the ocean current can effectively act on the impeller plate 38 on the circumferential surface of the impeller 28. The impeller plate 38 is in an inclined state, and when it is impacted, it can effectively drive the impeller 28 to rotate, so that the impeller 28 can function.

[0054] The present invention also provides a method for installing a floating self-elevating offshore electrical platform, comprising the following steps:

[0055] S1. Install pile foundation 41. Use a pile driver to drill holes on the seabed, with the hole depth reaching into the seabed rock layer. Use a hoisting method to insert the prefabricated pile foundation 41 into the hole, and put a steel cage on the outside. Pour underwater concrete into the hole until the steel cage is completely covered, forming a fixation with the pile foundation 41.

[0056] S2. Control the first telescopic rod to retract the stabilizing wing 2 inward, and drag the platform 1 to the top of the foundation pile by the floating vessel. Slowly release the gas inside the floating platform 22 to make the entire platform 1 sink into the water. After sinking to the predetermined depth, firmly connect the floating platform 22 to the foundation pile 41 with the traction cable 40, and re-inflate the floating platform 22 to give the entire platform 1 an upward buoyancy.

[0057] S3. By controlling the synchronous extension and retraction of the hydraulic telescopic rod 15, the stabilizer wing 2 is extended outward;

[0058] S4. By controlling the synchronous extension and retraction of the first telescopic rod, the height of platform 1 on the water surface and the height of stabilizing wing 2 are adjusted so that the lower third of stabilizing wing 2 is submerged in water.

[0059] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains can make various modifications or additions to the described specific embodiments or use similar methods to replace them.

Claims

1. A floating self-elevating offshore electrical platform, comprising a platform (1) and a support frame (19), characterized in that: The support frame (19) has floating platforms (22) on its left and right sides respectively, and hydraulic jacks are installed between the floating platforms (22) and the support frame (19); the platform (1) has stabilizing wings (2) on its left and right sides respectively, and folding frames are installed between the stabilizing wings (2) and the platform (1), and the stabilizing wings (2) can be retracted inward through the folding frames. The stabilizer (2) has a structure that is thin at both ends and thick in the middle. The outer surface of the stabilizer (2) is an arc-shaped convex surface and the inner surface is an arc-shaped concave surface. Multiple auxiliary holes (13) are opened on the convex surface of the stabilizer (2), and the other end of the auxiliary hole (13) penetrates the concave surface. The front and rear ends of the bottom of the floating platform (22) are respectively connected to the flow-inducing plate (27). One end of the flow-inducing plate (27) is connected to the flow-inducing impeller (28), and the other end is equipped with multiple thrust impellers (36). When the flow-inducing impeller (28) rotates, it can drive multiple thrust impellers (36) to rotate faster. The folding frame includes a first folding rod (3) and a second folding rod (4) respectively hinged to the lower side of the platform (1). A first hinge rod (5) is provided on the lower side of the first folding rod (3) and is arranged in parallel with each other. The other ends of the first folding rod (3) and the first hinge rod (5) are hinged together to a mounting plate (7). The other end of the first hinge rod (5) is hinged to a second hinge rod (6). The second hinge rod (6) is arranged in parallel with the corresponding mounting plate (7). The other end of the second hinge rod (6) is hinged to the first folding rod (3). The other end of the second folding rod (4) is hinged to the other end of the first hinge rod (5). A secondary rod (14) is fixedly connected to the end of the second folding rod (4) that is hinged to the platform (1). A hydraulic telescopic rod (15) is provided on one side of the secondary rod (14). The telescopic end of the hydraulic telescopic rod (15) is hinged to the other end of the secondary rod (14). The fixed end of the hydraulic telescopic rod (15) is hinged to the platform (1). The upper end of the frontal vane (27) is fixedly connected to a rotating shaft (37), which is located near the frontal impeller (28). An internal gear ring (31) is fixedly connected to one end of the impeller (28) facing the impeller (27). Multiple planetary gears (32) are meshed on the inner side of the internal gear ring (31). A drive shaft (35) is fixedly connected to the middle part of each of the multiple planetary gears (32). The other end of the drive shaft (35) is fixedly connected to the thrust impeller (36) on the same axis. A triangular plate (30) is rotatably connected to the surface of the drive shaft (35). The triangular plate (30) is fixedly connected to one end of the impeller (27).

2. A floating self-elevating offshore electrical platform as described in claim 1, characterized in that: The auxiliary hole (13) has a larger opening on the convex surface than on the concave surface.

3. A floating self-elevating offshore electrical platform as described in claim 1, characterized in that: The surface of the mounting plate (7) is vertically provided with a movable slide groove. The upper and lower sides of the movable slide groove are respectively slidably connected to a pressure slider (9) and a movable slider (12). The middle part of the movable slider (12) is provided with a sliding hole. An adjusting screw (10) is respectively fitted in the sliding hole. The threaded part of the adjusting screw (10) is threadedly connected to the pressure slider (9). The lower side of the adjusting screw (10) is rotatably connected to the bottom of the mounting plate (7). Pressure springs (11) are respectively provided between the pressure slider (9) and the moving slider (12), and the pressure springs (11) are respectively sleeved on the surface of the adjusting screw (10); The upper side of the concave surface of the stabilizer (2) is hinged to the corresponding mounting plate (7), and the lower side of the concave surface is hinged to the movable rod (8). The other end of the movable rod (8) is hinged to the movable slider (12).

4. A floating self-elevating offshore electrical platform as described in claim 3, characterized in that: The lower end of the adjusting screw (10) is coaxially fixedly connected to a pulley (42), and a transmission belt (43) is sleeved between the two corresponding pulleys (42). An adjusting motor (16) is provided on the lower side of one of the adjusting screws (10). The adjusting motor (16) is fixedly connected to the corresponding mounting plate (7), and the power output end of the adjusting motor (16) is coaxially fixedly connected to the bottom of the corresponding adjusting screw (10).

5. A floating self-elevating offshore electrical platform as described in claim 1, characterized in that: The support frame (19) includes two sets of connecting frame structures arranged side by side; The connecting frame structure includes multiple connecting frames (24) arranged side by side, a reinforcing frame (25) is fixedly connected between two adjacent connecting frames (24), and a horizontal bar (26) is fixedly connected between the left and right corresponding connecting frames (24). Side plates (18) are fixedly connected to the front and rear sides of the upper end of the support frame (19). The upper ends of the side plates (18) are fixedly connected to the platform (1). Support beams (17) are bolted between the corresponding front and rear side plates (18).

6. A floating self-elevating offshore electrical platform as described in claim 1, characterized in that: The floating platform (22) includes a floating body and a base plate (23) fixedly connected to the lower end of the floating body. A support rod is fixedly connected between two adjacent base plates (23). A bearing plate is fixedly connected to the upper end of the floating body. A hydraulic jack (21) is fixedly fixed to the upper end of the bearing plate. Traction cables (40) are connected to both sides of the lower end of the base plate (23). Pile foundations (41) are set at the four corners below the platform (1). The other end of the traction cable (40) is fixedly connected to the pile foundation (41).

7. A floating self-elevating offshore electrical platform as described in claim 1, characterized in that: The end of the impeller (28) away from the impeller (27) is an inclined conical surface (29).

8. The installation method for a floating self-elevating offshore electrical platform as described in claim 7, characterized in that, Includes the following steps: S1. Install pile foundation (41): Use a pile driver to drill holes on the seabed, with the hole depth reaching into the seabed rock layer. Use a hoisting method to insert the prefabricated pile foundation (41) into the hole, and put a steel cage on the outside. Pour underwater concrete into the hole until the steel cage is completely covered, forming a fixed connection with the pile foundation (41). S2. Control the first telescopic rod to retract the stabilizing wing (2) inward, drag the platform (1) to the top of the foundation pile by the floating boat, slowly release the gas inside the floating platform (22) to make the entire platform (1) sink into the water, and after sinking to the predetermined depth, firmly connect the floating platform (22) and the foundation pile (41) with the traction cable (40), and re-inflate the floating platform (22) to make the entire platform (1) have upward buoyancy; S3. By controlling the synchronous extension and retraction of the hydraulic telescopic rod (15), the stabilizer (2) is extended outward; S4. By controlling the synchronous extension and retraction of the first telescopic rod, adjust the height of the platform (1) on the water surface and the height of the stabilizer (2) so that the lower third of the stabilizer (2) is submerged in water.

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