Large-scale offshore photovoltaic platform supporting top installation device and installation method

Abstract

The invention discloses a large-scale offshore photovoltaic platform supporting top installation device and an installation method, and relates to the technical field of ocean photovoltaic equipment.The technical scheme is that the large-scale offshore photovoltaic platform supporting top installation device comprises a barge, jacking systems, bearing adjusting systems and a control system.The two sets of jacking systems are carried on a barge deck, and the two ends of each set of jacking system are each provided with one bearing adjusting system; the bearing adjusting system is provided with a bearing device and an adjusting device which have the functions of bearing platform supporting legs and adjusting the position of the pile top respectively. The device has the beneficial effects that the device realizes safe and efficient installation of an offshore large-scale photovoltaic platform in a shallow water area; the position of the pile top can be adjusted, so that the pile top is accurately aligned with the photovoltaic platform supporting leg, the construction difficulty caused by the position deviation of the pile top is solved, and the installation efficiency is improved. The device is practicable and easy to popularize, and has very high application value.

Description

Technical Field

[0001] The present invention relates to the technical field of marine photovoltaic equipment, and in particular to a large-scale offshore photovoltaic platform top-supporting installation device and an installation method. Background Art

[0002] Marine photovoltaics is a new strategic direction for the development of green energy in my country. At present, a number of offshore photovoltaic projects have been planned and built in the near and shallow sea areas along the eastern coast of my country. The marine photovoltaic structure system is mainly a pile-based fixed platform structure, that is, a large photovoltaic platform is supported by multiple piles. Among them, the structure of 4 steel pipe piles supporting 1 steel platform is the most common. The offshore construction of photovoltaic platforms mainly includes pile sinking construction, platform installation, joint fixation and anti-corrosion, electrical component installation and other processes.

[0003] Taking the offshore photovoltaic platform with 4 steel pipe piles and 1 platform structure as an example, during the installation phase of the photovoltaic platform, the 4 legs of the photovoltaic platform need to be aligned with the 4 steel pipe piles that have been constructed; then the 4 legs are lowered and inserted into the tops of the 4 steel pipe piles. This process is currently mainly implemented by the hoisting method. However, in shallow waters, it is difficult for hoisting ships and other ships with large draft to enter and carry out hoisting construction, making the installation of photovoltaic platforms in shallow waters a major problem.

[0004] In addition, although precise positioning and verticality control technologies are used in the construction of offshore pile foundations, the quality of the piles is excellent. However, the pile foundations after construction are cantilever piles, with a large length located above the seabed. Under the influence of complex offshore environments, collisions with unknown floating objects, and accidental collisions with photovoltaic platform installation equipment, the top of the piles will inevitably have a certain lateral displacement. Although this displacement is generally not large, it still exceeds the allowable error of the photovoltaic platform leg-steel pipe pile docking, making the installation of the photovoltaic platform difficult.

[0005] How to solve the above problems is the research topic of this program. Summary of the invention

[0006] In order to achieve the above-mentioned purpose of the invention and to address the above-mentioned technical problems, the present invention provides a large-scale offshore photovoltaic platform top-supporting installation device and installation method, which aims to solve the problem that photovoltaic platforms in shallow sea areas are difficult to hoist and install. At the same time, it has the function of adjusting the position of the pile top to ensure accurate and efficient docking of the photovoltaic platform legs and steel pipe piles, thereby improving construction efficiency.

[0007] The technical solution is a large-scale offshore photovoltaic platform top-supporting installation device, including a barge, a jacking system, a supporting adjustment system and a control system, wherein: the deck of the barge is equipped with two jacking systems, and each jacking system is provided with a supporting adjustment system at both ends; the supporting adjustment system is provided with a support and an adjuster, which respectively have the functions of supporting the platform legs and adjusting the position of the pile top;

[0008] The platform legs of the photovoltaic platform are located on the support, and the pile foundation position is adjusted through the support adjustment system so that the platform legs are accurately aligned with the pile foundation, and then the support is slowly opened to achieve docking of the platform legs with the pile foundation;

[0009] The barge is a shallow-draft transport ship, and its hull width and deck loading space match the geometric dimensions of the jacking system and the structural dimensions of the photovoltaic platform;

[0010] There are two sets of jacking systems, which are mounted on the edge of the barge deck. Each set of jacking systems consists of a connecting beam, a jacking frame, a first oil cylinder and a guide column.

[0011] The two ends of the connecting beam are respectively fixed with a jacking frame, a first oil cylinder is arranged in the jacking frame, and a guide column is respectively arranged on both sides of the jacking frame;

[0012] The first oil cylinder and the guide column are both fixedly connected to the deck of the barge; the two ends of the connecting beam are also respectively connected to a support adjustment system for steering, supporting the support adjustment system to achieve 90-degree steering in the horizontal plane;

[0013] The jacking frame drives the connecting beam and the supporting adjustment system to rise and fall together under the pushing and contracting action of the first oil cylinder.

[0014] The support and adjustment system comprises a support frame, a telescopic arm, a support device and an adjuster;

[0015] The telescopic arm comprises a telescopic arm fixed end and a telescopic arm movable end;

[0016] The upper part of the support frame is connected to the two ends of the connecting beam of the jacking system in a turning manner, the middle part of the support frame is fixedly connected to the fixed end of the telescopic arm, and the lower part of the support frame is fixedly connected to the adjuster;

[0017] The support device is composed of two support plates with semicircular holes;

[0018] The connecting ends of the platform legs and the pile foundation are provided with a reducing portion;

[0019] The semicircular hole has a chamfer that matches the reduced diameter portion of the platform leg;

[0020] The support plate is horizontally connected to the movable end of the telescopic arm, and the two support plates are in an open state when they move in opposite directions in the horizontal plane, and in a closed state when they move in opposite directions;

[0021] When the two supporting plates are in a closed state, their semicircular holes are combined into circular holes for inserting the platform legs supporting the photovoltaic platform. The ends of the photovoltaic platform legs adopt a variable diameter structure with a gradually reduced diameter in order to facilitate insertion into the top of the pile foundation. The supporting plates are chamfered to match the variable diameter part of the platform legs, that is, the variable diameter part of the legs is inserted into the chamfered circular hole formed by the two supporting plates to achieve stable support.

[0022] The regulator is composed of a first clamp, a second clamp, a jacking plate, a second oil cylinder, a first connecting rod, a second connecting rod, a third oil cylinder and a fixing plate;

[0023] The first clamp and the second clamp are both arc-shaped structures. In the clamped state, the front ends of the two clamps cooperate and cross; the inner sides of the tails of the two clamps are convex.

[0024] The jacking plate is arranged above the fixed plate, the front end of the jacking plate is arc-shaped and is slidably connected to the fixed plate, and the upper part of the jacking plate is provided with a first clamp, a second clamp, a second oil cylinder, a first connecting rod and a second connecting rod.

[0025] The jacking plate is fixedly connected to the second oil cylinder and is hingedly connected to the tails of the first clamp and the second clamp;

[0026] The second oil cylinder is a through-hole oil cylinder, through which the second connecting rod passes through the center of the second oil cylinder, extends out at the tail, and then is hingedly connected to the two first connecting rods; the other ends of the two first connecting rods are respectively hinged to the convex bodies of the first clamp and the second clamp;

[0027] When the pushing movement is performed, the first clamp and the second clamp use the tail hinge point as the steering axis to perform a clamping action, and vice versa, they perform an opening action.

[0028] A hole is arranged at the bottom of the support; the moving end of the second oil cylinder penetrates into the hole at the bottom of the support to ensure the pushing stroke of the second oil cylinder. During the pushing process of the second oil cylinder, the moving end can enter the hole to solve the problem of limited pushing stroke of the through-hole oil cylinder.

[0029] The fixing plates are provided in two pieces and are fixedly connected to the supporting frame;

[0030] The third oil cylinder is placed between the two fixed plates, the fixed end of the third oil cylinder is fixedly connected to the support bracket, and the movable end is hinged to the lower part of the jacking plate through a connecting assembly;

[0031] Under the pushing action of the third oil cylinder, the front end of the jacking plate presses against the pile foundation, pushing the pile foundation to move outward;

[0032] The two supporting adjustment systems at both ends of the connecting beam are in a vertical state with the connecting beam in horizontal projection, and the distance between the two telescopic arms is equal to the long side of the rectangle formed by the four platform legs of the photovoltaic panel.

[0033] The various oil cylinder pushing and retracting actions, the opening and closing actions of the supports, the steering actions of the support adjustment system relative to the connecting beam, and the directions, speeds, and sizes of various actions involved in this scheme are all executed under the control of the control system.

[0034] The installation method based on the large offshore photovoltaic platform top support installation device is characterized by comprising the following steps:

[0035] S1. Set the device to the initial state at the harbor terminal:

[0036] (1) All four first oil cylinders are set to the retracted state, and all four supporting adjustment systems are set to be perpendicular to the connecting beam in the horizontal projection. At this time, the connecting beam of the jacking system is located on the deck of the barge, and the four supporting adjustment systems are located on the outer side of the ship;

[0037] (2) All the supports connected to the movable end of the telescopic arm are set to a closed state so that the two support plates are assembled into a circular hole;

[0038] (3) Symmetrically adjust the length of the telescopic arms on both sides of the hull so that the spacing between the circular holes of the support corresponding to the side of the ship is equal to the short side size of the rectangle formed by the four platform legs of the photovoltaic platform;

[0039] (4) The second oil cylinder is set to a retracted state to ensure that the first clamp and the second clamp are in an open state;

[0040] (5) The third oil cylinder is set to the retracted state to ensure that the jacking plate is close to the ship's side;

[0041] S2. Hoist the photovoltaic platform onto the barge so that the four platform legs of the photovoltaic platform are inserted into the circular holes of the four supports;

[0042] The barge then sailed to the construction area and stopped near the four completed pile foundations;

[0043] S3, start the four first oil cylinders to synchronously lift the photovoltaic platform to ensure that the lowest surface of the supporting and adjusting system is higher than the pile top;

[0044] The ship is anchored and driven into the middle of the piles along the long side of the rectangle formed by the four piles, so that the centroid of the horizontal projection of the photovoltaic platform is basically coincident with the centroid of the rectangle of the four piles, and then the ship is anchored and fixed;

[0045] S4, start the four first oil cylinders and shrink them synchronously, so that the upper edges of the first and second clamps are slightly lower than the pile top, but the lower edges of the platform legs are higher than the pile top;

[0046] S5, start the four third oil cylinders to push the jacking plate so that its arc-shaped front end abuts against the pile foundation;

[0047] Then, the four second oil cylinders are started to perform a jacking action, driving the first and second clamps to embrace the pile foundation until they are fully embraced, ensuring that the pile top and the platform legs are aligned in the direction of the short side of the rectangle formed by the four platform legs of the photovoltaic panel;

[0048] Then, according to the relative position of the pile top and the platform legs, the four third oil cylinders are respectively used to align the pile top and the platform legs by contraction or jacking;

[0049] S6. Slowly open the support plates of the four supports at the same time, so that the four platform legs are respectively inserted into the tops of the four pile foundations to complete the docking action;

[0050] S7, open the support plate to the maximum, retract the moving end of the telescopic arm; retract the moving end of the second oil cylinder, so that the first clamp and the second clamp are in an open state; retract the moving end of the third oil cylinder; realize the complete separation of the support device and the adjuster from the platform legs and the pile foundation respectively;

[0051] S8. The four first oil cylinders are lifted synchronously so that the lowest edge of the supporting and adjusting system is slightly higher than the deck of the barge. Then the four supporting and adjusting systems are rotated 90 degrees respectively so that all the supporting and adjusting systems are located above the deck. The barge is driven out by turning the anchor or self-propelled.

[0052] The beneficial effects brought about by the technical solution provided by the embodiment of the present invention are: the device realizes the safe and efficient installation of large offshore photovoltaic platforms in shallow water areas; it can adjust the position of the pile top so that the pile top is accurately aligned with the photovoltaic platform legs, solves the construction difficulties caused by the deviation of the pile top position, and improves the installation efficiency; the device is practical, easy to promote, and has a high application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0054] Figure 2 It is a schematic structural diagram of the jacking system according to an embodiment of the present invention.

[0055] Figure 3 for Figure 2 A partial enlarged view of .

[0056] Figure 4 for Figure 2 A partial enlarged view of B.

[0057] Figure 5 It is a structural schematic diagram of a support and adjustment system according to an embodiment of the present invention.

[0058] Figure 6 The structure of the regulator of the embodiment of the present invention is shown in FIG. Figure 1 .

[0059] Figure 7 The structure of the regulator of the embodiment of the present invention is shown in FIG. Figure 2 .

[0060] Figure 8 It is a schematic structural diagram of the chamfer of the semicircular hole in the diameter-changing portion of the platform leg and the diameter-changing portion of the platform leg according to an embodiment of the present invention.

[0061] Fig. 9 It is a schematic diagram of the ship stopping position and the pile penetration direction in steps S2 and S3 of an embodiment of the present invention.

[0062] Fig.10 This is a schematic diagram of step S4 of an embodiment of the present invention. In the figure, there is an obvious docking error between the pile foundation and the platform legs, and the next step is to adjust the top of the pile foundation.

[0063] Fig.11 It is a schematic diagram of adjusting the pile top position and achieving docking in steps S5 and S6 of an embodiment of the present invention.

[0064] Fig.12 This is a schematic diagram of preparing for evacuation in step S7 of an embodiment of the present invention, in which the support plate is opened to the maximum and the movable end of the telescopic arm is retracted.

[0065] Fig.13 It is a schematic diagram of the withdrawal state of the floating tugboat in step S8 of an embodiment of the present invention.

[0066] Among them, the figure markings are: 1. barge; 12. deck; 2. jacking system; 21. connecting beam; 22. jacking frame; 23. first cylinder; 24. guide column; 3. support and adjustment system; 31. support frame; 311. hole; 32. telescopic arm; 321. fixed end of telescopic arm; 322. movable end of telescopic arm; 33. support; 330. support plate; 34. adjuster; 341. first clamp; 342. second clamp; 3400. protrusion; 343. jacking plate; 344. second cylinder; 345. first connecting rod; 346. second connecting rod; 347. third cylinder; 348. fixed plate; 4. photovoltaic platform; 41. platform legs; 5. pile foundation. DETAILED DESCRIPTION

[0067] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0068] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0069] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0070] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0071] Example 1

[0072] This embodiment is based on an actual construction project. The horizontal projection size of the photovoltaic platform involved is 60m×35m, 13.8m high, the platform is inclined at 15°, and the four platform legs are arranged in a rectangular shape with spacings of 35m and 21m respectively, that is, the centroids of the four platform legs form a rectangle of 35m×21m. The platform legs are variable diameter structures with a maximum diameter of 1.0m, a minimum diameter of 0.6m, and a reduction angle of 10°. The pile foundation is a steel pipe pile with an outer diameter of 0.9m at the top and an inner diameter of 0.88m at the top. The following technical solution is adopted.

[0073] See also Figures 1 to 13 A large-scale offshore photovoltaic platform top-supporting installation device includes a barge 1, a jacking system 2, a supporting adjustment system 3 and a control system, wherein: two jacking systems 2 are carried on the deck 12 of the barge 1, and a supporting adjustment system 3 is respectively arranged at both ends of each jacking system 2; the supporting adjustment system 3 is provided with a support 33 and an adjuster 34, which respectively have the functions of supporting the platform legs 41 and adjusting the position of the pile top;

[0074] The platform legs 41 of the photovoltaic platform 4 are located on the support 33. The position of the pile foundation 5 is adjusted by the support adjustment system 3 so that the platform legs 41 are precisely aligned with the pile foundation 5. Then the support 33 is slowly opened to achieve docking of the platform legs 41 with the pile foundation 5.

[0075] The barge 1 is a shallow draft transport ship, whose hull width and deck 12 loading space match the geometric dimensions of the jacking system 2 and the structural dimensions of the photovoltaic platform 4; the barge 1 adopts a flat barge with a draft depth of less than 2m, and its deck width of 12m and the deck loading space meet the implementation requirements of the present invention.

[0076] There are two jacking systems 2 mounted on the edge of the deck 12 of the barge 1 . Each jacking system 2 is composed of a connecting beam 21 , a jacking frame 22 , a first oil cylinder 23 and a guide column 24 .

[0077] A jacking frame 22 is fixedly connected to both ends of the connecting beam 21, a first oil cylinder 23 is arranged inside the jacking frame 22, and a guide column 24 is arranged on both sides of the jacking frame 22;

[0078] The length of the connecting beam 21 is 31 m, the maximum lifting stroke of the first oil cylinder 23 is 3.5 m, and the lifting frame 22 and the guide column 24 are both matched with the use requirements of the first oil cylinder 23 .

[0079] The first oil cylinder 23 and the guide column 24 are both fixedly connected to the deck 12 of the barge 1; both ends of the connecting beam 21 are also connected to a supporting adjustment system 3 for steering, so as to support the supporting adjustment system 3 to achieve 90-degree steering in the horizontal plane;

[0080] The jacking frame 22 drives the connecting beam 21 and the supporting and adjusting system 3 to rise and fall together under the pushing and contracting action of the first oil cylinder 23 .

[0081] The support and adjustment system 3 includes a support frame 31, a telescopic arm 32, a support 33 and an adjuster 34;

[0082] The telescopic arm 32 includes a telescopic arm fixed end 321 and a telescopic arm movable end 322;

[0083] The upper part of the support frame 31 is connected to the two ends of the connecting beam 21 of the jacking system 2, the middle part of the support frame 31 is fixedly connected to the fixed end 321 of the telescopic arm, and the lower part of the support frame 31 is fixedly connected to the adjuster 34;

[0084] The support 33 is composed of two support plates 330 with semicircular holes;

[0085] A diameter reducing portion is provided at the connection end between the platform leg 41 and the pile foundation;

[0086] The semicircular hole has a chamfer that matches the reduced diameter portion of the platform leg 41;

[0087] The supporting plate 330 is horizontally movably connected to the movable end 322 of the telescopic arm, and a lead screw guide connection is adopted in the embodiment.

[0088] The two supporting plates 330 can move in opposite directions in a horizontal plane to present an open state, or can move in opposite directions to present a closed state.

[0089] When the two supporting plates 330 are in a closed state, the semicircular holes of each plate are assembled into a circular hole for inserting the platform legs 41 supporting the photovoltaic platform 4. The ends of the photovoltaic platform legs adopt a variable diameter structure with a gradually reduced diameter in order to facilitate insertion into the top of the pile foundation. The supporting plates are provided with chamfers to match the variable diameter parts of the platform legs, that is, the variable diameter parts of the legs are inserted into the chamfered circular holes formed by the two supporting plates to achieve stable support.

[0090] In this embodiment, when the two supporting plates are in a closed state, the front end of the circular hole formed is still open, so that the size of the platform legs can be reached and exceeded more quickly during the opening process, and the platform legs can be quickly detached when the telescopic arm is retracted.

[0091] The regulator 34 is composed of a first clamp 341, a second clamp 342, a push plate 343, a second oil cylinder 344, a first connecting rod 345, a second connecting rod 346, a third oil cylinder 347 and a fixing plate 348;

[0092] The first clamp 341 and the second clamp 342 are both arc-shaped structures. In the clamped state, the front ends of the two are matched and crossed; the inner side of the tail of the two is a convex body 3400. The jacking plate 343 is arranged above the fixed plate 348. The front end of the jacking plate 343 is arc-shaped and is slidably connected to the fixed plate 348. The upper part of the jacking plate 343 is provided with the first clamp 341, the second clamp 342, the second oil cylinder 344, the first connecting rod 345 and the second connecting rod 346. Furthermore, the jacking plate 343 is fixedly connected to the second oil cylinder 344, and is hingedly connected to the tail of the first clamp 341 and the second clamp 342;

[0093] The second oil cylinder 344 is a through-hole oil cylinder, through which the second connecting rod 346 passes through the center of the second oil cylinder 344, extends out at its tail, and then is hingedly connected to the two first connecting rods 345; the other ends of the two first connecting rods 345 are respectively hinged to the convex bodies 3400 of the first clamping hoop 341 and the second clamping hoop 342. When the push movement is performed, the first clamping hoop 341 and the second clamping hoop 342 respectively use the rear hinge point as the steering axis to perform the clamping action, otherwise, they perform the opening action.

[0094] A hole 311 is provided at the lower portion of the support 33 ; the movable end of the second oil cylinder 344 penetrates into the hole 311 at the lower portion of the support 33 to ensure the pushing stroke of the second oil cylinder 344 .

[0095] Furthermore, the sizes of the first hoop and the second hoop are larger than the maximum diameter of the pile foundation, and can adapt to the situation where the pile top deviation is large; the cross structure at the front end of the first hoop and the second hoop matches the minimum diameter of the pile foundation, and in the fully engaged state, the first hoop, the second hoop and the front end of the jacking plate can all contact the side wall of the pile foundation, and the pile top position can be adjusted to be in the same straight line with the corresponding platform legs (on the short side straight line of the rectangle connecting the centroids of the four platform legs).

[0096] There are two fixing plates 348, which are fixedly connected to the support frame 31;

[0097] The third oil cylinder 347 is placed between the two fixed plates 348, the fixed end of the third oil cylinder 347 is fixedly connected to the support bracket 31, and the movable end is hinged to the lower part of the jacking plate 343 through a connecting assembly;

[0098] Under the pushing action of the third oil cylinder 347, the front end of the jacking plate 343 abuts against the pile foundation 5, pushing the pile foundation 5 to move outward;.

[0099] The two supporting adjustment systems at both ends of the connecting beam are in a vertical state with the connecting beam in horizontal projection, and the distance between the two telescopic arms is equal to the long side of the rectangle connecting the centroids of the four platform legs.

[0100] The various oil cylinder pushing and retracting actions involved in this scheme, the opening and closing actions of the support device 33, the steering action of the support adjustment system 3 relative to the connecting beam 21, and the direction, speed, size, etc. of various actions are all executed under the control of the control system.

[0101] The working method of the present disclosure is as follows:

[0102] S1. Set the device to the initial state at the harbor terminal:

[0103] (1) All four first oil cylinders 23 are set to the retracted state, and all four supporting adjustment systems 3 are set to be perpendicular to the connecting beam 21 in the horizontal projection. At this time, the connecting beam 21 of the jacking system 2 is located on the deck 12 of the barge 1, and the four supporting adjustment systems are located on the outer side of the ship;

[0104] (2) All the supports 33 connected to the movable end 322 of the telescopic arm are set to a closed state, so that the two support plates 330 are assembled into a circular hole;

[0105] (3) symmetrically adjusting the lengths of the telescopic arms 32 on both sides of the hull so that the spacing between the circular holes of the support 33 corresponding to the side of the ship is equal to the short side size of the rectangle formed by the four platform legs 41 of the photovoltaic platform 4;

[0106] (4) The second oil cylinder 344 is set to a retracted state to ensure that the first clamp 341 and the second clamp 342 are in an open state;

[0107] (5) The third oil cylinder 347 is set to a retracted state to ensure that the jacking plate 343 is close to the ship's side;

[0108] S2, hoisting the photovoltaic platform 4 onto the barge 1, so that the four platform legs 41 of the photovoltaic platform 4 are inserted into the circular holes of the four supporters 33;

[0109] Then the barge 1 travels to the construction sea area and stops near the four completed pile foundations 5;

[0110] S3, start the four first oil cylinders 23, and synchronously lift the photovoltaic platform 4 to ensure that the lowest surface of the supporting and adjusting system 3 is higher than the pile top;

[0111] The ship is anchored and driven into the middle of the pile foundations 5 along the long side of the rectangle formed by the four pile foundations 5, so that the horizontal projection centroid of the photovoltaic platform 4 is substantially coincident with the rectangular centroid of the four pile foundations 5, and then the ship is anchored and fixed;

[0112] S4, start the four first oil cylinders 23 and shrink them synchronously, so that the upper edges of the first clamp 341 and the second clamp 342 are slightly lower than the pile top, but the lower edge of the platform leg 41 is higher than the pile top;

[0113] S5, start the four third oil cylinders 347 to push the jacking plate 343 so that its arc-shaped front end abuts against the pile foundation 5;

[0114] Subsequently, the four second oil cylinders 344 are started to perform a jacking action, driving the first clamp 341 and the second clamp 342 to clamp the pile foundation 5 until they are completely clamped, ensuring that the pile top and the platform legs 41 are aligned in the direction of the short side of the rectangle formed by the four platform legs 41 of the photovoltaic panel;

[0115] Then, according to the relative position between the pile top and the platform leg 41, the four third oil cylinders 347 respectively complete the alignment between the pile top and the platform leg 41 by contraction or jacking;

[0116] Since the pile foundation is a cantilever pile with a relatively large cantilever length, the position of the pile top is easier to adjust, and the reaction force required during the adjustment process is mainly balanced by the anchor cable tension.

[0117] S6. Slowly open the supporting plates 330 of the four supporting devices 33 at the same time, so that the four platform legs 41 are respectively inserted into the tops of the four pile foundations 5 to complete the docking action;

[0118] S7, open the support plate 330 to the maximum, retract the telescopic arm moving end 322; retract the moving end of the second oil cylinder 344, so that the first clamp 341 and the second clamp 342 are in an open state; retract the moving end of the third oil cylinder 347; realize the complete separation of the support device 33 and the adjuster 34 from the platform leg 41 and the pile foundation 5 respectively;

[0119] S8. The four first oil cylinders 23 are lifted synchronously so that the bottom edge of the supporting and adjusting system 3 is slightly higher than the deck 12 of the barge 1. Then the four supporting and adjusting systems 3 are rotated 90 degrees respectively so that all the supporting and adjusting systems 3 are located above the deck 12. The barge 1 sails out by turning the anchor or self-navigation.

[0120] This device enables the installation of large offshore photovoltaic platforms in shallow water areas, solves the construction difficulties caused by the position deviation of the pile top, improves the installation efficiency, is highly practical, and is easy to promote.

[0121] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A large offshore photovoltaic platform top support installation device, characterized in that: The invention comprises a barge (1), a jacking system (2), a supporting and adjusting system (3) and a control system. The deck (12) of the barge (1) carries two jacking systems (2), and each of the two ends of the jacking system (2) is provided with a supporting and adjusting system (3). The supporting and adjusting system (3) is provided with a supporting device (33) and an adjusting device (34), which respectively have the functions of supporting the platform legs (41) and adjusting the position of the pile top. The platform legs (41) of the photovoltaic platform (4) are seated on the support (33), and the position of the pile foundation (5) is adjusted by the support adjustment system (3) so that the platform legs (41) and the pile foundation (5) are accurately aligned, and then the support (33) is opened to achieve docking of the platform legs (41) and the pile foundation (5); The barge (1) is a shallow-draft transport ship, and its hull width and deck (12) loading space match the geometric dimensions of the jacking system (2) and the structural dimensions of the photovoltaic platform (4); The jacking system (2) is in two sets and is mounted on the edge of the deck (12) of the barge (1). Each set of the jacking system (2) is composed of a connecting beam (21), a jacking frame (22), a first oil cylinder (23) and a guide column (24).

2. The large offshore photovoltaic platform top support installation device according to claim 1, characterized in that: The two ends of the connecting beam (21) are respectively fixedly connected to a jacking frame (22), a first oil cylinder (23) is arranged in the jacking frame (22), and a guide column (24) is respectively arranged on both sides of the jacking frame (22); The first oil cylinder (23) and the guide column (24) are both fixedly connected to the deck (12) of the barge (1); the two ends of the connecting beam (21) are also respectively connected to a supporting adjustment system (3) for steering, so as to support the supporting adjustment system (3) to achieve 90-degree steering in the horizontal plane; The jacking frame (22) drives the connecting beam (21) and the supporting and adjusting system (3) to rise and fall together under the pushing and contracting action of the first oil cylinder (23).

3. The large offshore photovoltaic platform top support installation device according to claim 2, characterized in that: The support and adjustment system (3) comprises a support frame (31), a telescopic arm (32), a support device (33) and an adjuster (34); The telescopic arm (32) comprises a telescopic arm fixed end (321) and a telescopic arm movable end (322); The upper part of the support frame (31) is connected to the two ends of the connecting beam (21) of the jacking system (2) in a turnable manner, the middle part of the support frame (31) is fixedly connected to the fixed end (321) of the telescopic arm, and the lower part of the support frame (31) is fixedly connected to the adjuster (34).

4. The large offshore photovoltaic platform top support installation device according to claim 3, characterized in that: The support (33) is composed of two support plates (330) with semicircular holes; A diameter reducing portion is provided at the connection end between the platform support leg (41) and the pile foundation; The semicircular hole has a chamfer that matches the reduced diameter portion of the platform leg (41); The support plate (330) is connected to the movable end (322) of the telescopic arm for horizontal movement. The two support plates (330) move in opposite directions in the horizontal plane to present an open state, and move in opposite directions to present a closed state. When the two supporting plates (330) are in a closed state, the semicircular holes are assembled into circular holes for inserting the platform legs (41) supporting the photovoltaic platform (4).

5. The large offshore photovoltaic platform top-supporting installation device according to claim 4, characterized in that: The regulator (34) is composed of a first clamp (341), a second clamp (342), a jacking plate (343), a second oil cylinder (344), a first connecting rod (345), a second connecting rod (346), a third oil cylinder (347) and a fixing plate (348); The first clamp (341) and the second clamp (342) are both arc-shaped structures. In the clamped state, the front ends of the two clamps cooperate and cross; the inner sides of the rear ends of the two clamps are convex bodies (3400).

6. The large offshore photovoltaic platform top-supporting installation device according to claim 5, characterized in that: The jacking plate (343) is arranged above the fixed plate (348), the front end of the jacking plate (343) is arc-shaped and is slidably connected to the fixed plate (348), and the upper part of the jacking plate (343) is provided with a first clamp (341), a second clamp (342), a second oil cylinder (344), a first connecting rod (345) and a second connecting rod (346).

7. The large offshore photovoltaic platform top-supporting installation device according to claim 6, characterized in that: The jacking plate (343) is fixedly connected to the second oil cylinder (344), and is hingedly connected to the tails of the first clamp (341) and the second clamp (342); The second oil cylinder (344) is a through-hole oil cylinder, through which the second connecting rod (346) passes through the center of the second oil cylinder (344), extends out at the tail end, and then is hingedly connected to the two first connecting rods (345); the other ends of the two first connecting rods (345) are respectively hingedly connected to the convex bodies (3400) of the first clamp (341) and the second clamp (342); When the pushing movement is performed, the first clamp (341) and the second clamp (342) respectively use the tail hinge point as the steering axis to perform a clamping action, and vice versa, perform an opening action.

8. The large offshore photovoltaic platform top-supporting installation device according to claim 5, characterized in that: A hole (311) is provided at the lower part of the support (33); the movable end of the second oil cylinder (344) penetrates into the hole (311) at the lower part of the support (33), thereby ensuring the pushing stroke of the second oil cylinder (344).

9. The large offshore photovoltaic platform top-supporting installation device according to claim 7, characterized in that: The fixing plates (348) are provided in two numbers and are fixedly connected to the supporting frame (31); The third oil cylinder (347) is placed between the two fixed plates (348), the fixed end of the third oil cylinder (347) is fixedly connected to the support frame (31), and the movable end is hinged to the lower part of the jacking plate (343) through a connecting assembly; Under the pushing action of the third oil cylinder (347), the front end of the jacking plate (343) abuts against the pile foundation (5), pushing the pile foundation (5) to move outward; The two supporting adjustment systems at both ends of the connecting beam (21) are arranged such that, when the two supporting adjustment systems are in a vertical state with the connecting beam (21) in a horizontal projection, the distance between the two telescopic arms (32) is equal to the long side of the rectangle formed by the four platform legs (41) of the photovoltaic panel.

10. The installation method of the large offshore photovoltaic platform top-supporting installation device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Set the device to the initial state at the harbor terminal: (1) All four first oil cylinders (23) are set to a retracted state, and all four supporting adjustment systems (3) are set to be perpendicular to the connecting beam (21) in the horizontal projection. At this time, the connecting beam (21) of the jacking system (2) is located on the deck (12) of the barge (1), and the four supporting adjustment systems are located on the outer side of the ship; (2) setting all the supports (33) connected to the movable end (322) of the telescopic arm to a closed state, so that the two support plates (330) are assembled into a circular hole; (3) symmetrically adjusting the lengths of the telescopic arms (32) on both sides of the hull so that the spacing between the circular holes of the corresponding support (33) on the side of the ship is equal to the short side size of the rectangle formed by the four platform legs (41) of the photovoltaic platform (4); (4) The second oil cylinder (344) is set to a retracted state to ensure that the first clamp (341) and the second clamp (342) are in an open state; (5) The third oil cylinder (347) is set to a retracted state to ensure that the jacking plate (343) is close to the ship's side; S2, hoisting the photovoltaic platform (4) onto the barge (1), so that the four platform legs (41) of the photovoltaic platform (4) are inserted into the circular holes of the four support devices (33); Then the barge (1) travels to the construction sea area and stops near the four completed pile foundations (5); S3, starting the four first oil cylinders (23) to synchronously lift the photovoltaic platform (4) to ensure that the lowest surface of the supporting and adjusting system (3) is higher than the pile top; The ship is driven into the middle of the pile foundation (5) along the long side of the rectangle formed by the four pile foundations (5) by means of a twisting anchor, so that the centroid of the horizontal projection of the photovoltaic platform (4) is substantially coincident with the centroid of the rectangle of the four pile foundations (5), and then the ship is anchored and fixed; S4, starting the four first oil cylinders (23) and contracting them synchronously, so that the upper edges of the first clamp (341) and the second clamp (342) are slightly lower than the pile top, but the lower edge of the platform leg (41) is higher than the pile top; S5, start the four third oil cylinders (347) to push the jacking plate (343) so that its arc-shaped front end abuts against the pile foundation (5); Subsequently, the four second oil cylinders (344) are started to perform a jacking action, driving the first clamp (341) and the second clamp (342) to clamp the pile foundation (5) until they are completely clamped, ensuring that the pile top and the platform legs (41) are aligned in the direction of the short side of the rectangle formed by the four platform legs (41) of the photovoltaic panel; Then, according to the relative position of the pile top and the platform legs (41), the four third oil cylinders (347) respectively complete the alignment of the pile top and the platform legs (41) by contraction or jacking; S6. Slowly open the support plates (330) of the four support devices (33) at the same time, so that the four platform legs (41) are respectively inserted into the tops of the four pile foundations (5), completing the docking action; S7, open the support plate (330) to the maximum, retract the movable end (322) of the telescopic arm; retract the movable end of the second oil cylinder (344), so that the first clamp (341) and the second clamp (342) are in an open state; retract the movable end of the third oil cylinder (347); and achieve complete separation of the support device (33) and the adjuster (34) from the platform legs (41) and the pile foundation (5) respectively; S8. The four first oil cylinders (23) are lifted synchronously so that the bottom edge of the supporting and adjusting system (3) is slightly higher than the deck (12) of the barge (1). Then, the four supporting and adjusting systems (3) are each rotated 90 degrees so that all the supporting and adjusting systems (3) are located above the deck (12); the barge (1) is driven out by turning the anchor or self-navigating.

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