Offshore photovoltaic support stacking tool and lightering operation method

Abstract

The invention provides an offshore photovoltaic support stacking tool and a lightering operation method.The offshore photovoltaic stacking tool comprises a barge widening and reinforcing tool and a photovoltaic support stacking tool, and the barge widening and reinforcing tool is composed of a plurality of extension assemblies; the extension assemblies are installed on the outer walls of ship boards on the left side and the right side of the barge in a bilateral symmetry mode in the length direction of the barge. The photovoltaic support stacking and splicing tool is composed of a plurality of sets of photovoltaic support supporting stand column assemblies, each set of photovoltaic support supporting stand column assembly is installed on the multiple extending assemblies and the deck of the barge in the circumferential direction at intervals, and an offshore photovoltaic support can be installed on the top of each photovoltaic support supporting stand column assembly. According to the offshore photovoltaic support stacking tool, the barge transportation efficiency can be improved, resource utilization is optimized, and the lightering cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of offshore photovoltaic construction technology, and in particular to an equipment for stacking and assembling offshore photovoltaic support structures and a method for barge transportation. Background Technology

[0002] Currently, my country's offshore photovoltaic (PV) industry chain is developing rapidly and has already reached a considerable scale, representing an important source of clean energy for the future. Offshore PV refers to photovoltaic power stations installed on the sea surface, typically with either floating or pile-based structures. Pile-based offshore PV systems fix the photovoltaic supports to the sea using piles. The characteristics of this type of PV power generation include: 1. Open sea surface with minimal shading, resulting in high power generation efficiency; 2. No need to occupy land resources, making it suitable for areas with limited land resources; 3. Integration with fisheries, aquaculture, and other industries, achieving multi-purpose comprehensive utilization.

[0003] Currently, offshore photovoltaic (PV) support structures are assembled into truss or space frame structures using lower chords, upper chords, and diagonal braces, and then installed at sea. PV panels are then mounted on these supports to complete the construction. Due to the limited construction window and the high difficulty of offshore operations, the support structures are often assembled on land and transported to the construction site by barges, where they are installed by crane vessels. However, the large number of support components and their overall size and weight make stacking difficult, often requiring the transport of individual support sets by barge. Therefore, when the transport distance is long, the cost of the barges and cranes is extremely high, resulting in significant resource waste. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide a tooling and barge transportation method for stacking marine photovoltaic support structures, which can improve barge transportation efficiency, optimize resource utilization, and reduce barge transportation costs.

[0005] In a first aspect, embodiments of the present invention provide a marine photovoltaic support stacking fixture, including: barge widening and reinforcement fixture and photovoltaic support stacking fixture. The barge widening and reinforcement fixture is composed of multiple extension components, which are installed on the outer walls of the left and right sides of the barge in a left-right symmetrical manner according to the length direction of the barge.

[0006] The photovoltaic support stacking fixture consists of multiple sets of photovoltaic support column assemblies. Each set of photovoltaic support column assemblies is installed circumferentially at intervals on multiple extension components and the deck of the barge. The top of the photovoltaic support column assemblies can be used to install offshore photovoltaic supports.

[0007] Furthermore, the photovoltaic support column assembly includes a first-layer photovoltaic support column, a second-layer photovoltaic support column, and a third-layer photovoltaic support column. The first-layer photovoltaic support column, the second-layer photovoltaic support column, and the third-layer photovoltaic support column are vertically fixed on the deck or the extended support plate. The offshore photovoltaic support includes a first-layer photovoltaic support, a second-layer photovoltaic support, and a third-layer photovoltaic support.

[0008] Furthermore, the top of the first-layer photovoltaic support column is equipped with a first-layer photovoltaic support. The first-layer photovoltaic support has hoisting holes, reserved holes for the second-layer support column, and reserved holes for the third-layer support column. The hoisting holes are used to allow the lifting equipment to extend into and lift the first-layer photovoltaic support. The reserved holes for the second-layer support column and the reserved holes for the third-layer support column are respectively used to allow the second-layer photovoltaic support column and the third-layer photovoltaic support column to extend out from the first-layer photovoltaic support.

[0009] Furthermore, a flange plate is provided on the top of the first-layer photovoltaic support column, and an annular groove around the central hole is opened on the top surface of the flange plate. A connecting leg is installed at the bottom of the first-layer photovoltaic support, and the connecting leg can be inserted into the top of the first-layer photovoltaic support column in sequence through the plug tip.

[0010] When the connecting leg is inserted into the top of the first-layer photovoltaic support column, the connecting leg flange plate can be embedded in the annular groove. Two arc-shaped fixing plates are symmetrically arranged on the flange plate. The distance between the inner arcs of the two arc-shaped fixing plates is smaller than the inner diameter of the annular groove. The arc-shaped fixing plates can press the connecting leg flange plate tightly into the annular groove.

[0011] Furthermore, an intermediate column is installed on the top of each of the two adjacent second photovoltaic support columns. A crossbeam is installed on the top of the two intermediate columns via a detachable flange. The length of the intermediate column can be adjusted according to actual needs. The second photovoltaic support column and the crossbeam can form an integral structure. The second-layer photovoltaic support is connected to the crossbeam column on the crossbeam. The second-layer photovoltaic support is provided with a second-layer photovoltaic support hoisting hole and a reserved hole for the third-layer column. The second-layer photovoltaic support hoisting hole is used to allow the lifting equipment to extend into and lift the second-layer photovoltaic support. The reserved hole for the third-layer column is used to allow the third-layer photovoltaic support column to extend out from the second-layer photovoltaic support.

[0012] Furthermore, two sets of pressure plates are symmetrically provided at the top of the crossbeam column. The pressure plates are fixed to the crossbeam by ribs. The pressure plates can be adjusted by bolts and locked by pins.

[0013] Furthermore, a third-layer photovoltaic support is installed above the support column of the third-layer photovoltaic support. The third-layer photovoltaic support is provided with a hoisting hole for the lifting equipment to extend into and lift the third-layer photovoltaic support.

[0014] Furthermore, a flange plate is provided on the top of the third-layer photovoltaic support column, and an annular groove around the central hole is opened on the top surface of the flange plate. A connecting leg is installed at the bottom of the first-layer photovoltaic support, and the connecting leg can be inserted into the top of the third-layer photovoltaic support column through a plug tip.

[0015] When the connecting leg is inserted into the top of the third-layer photovoltaic support column, the connecting leg flange plate can be embedded in the annular groove. Two arc-shaped fixing plates are symmetrically arranged on the flange plate. The arc-shaped fixing plates can press the connecting leg flange plate tightly into the annular groove. The distance between the inner arcs of the arc-shaped fixing plates is smaller than the inner diameter of the annular groove.

[0016] Secondly, embodiments of the present invention provide a barge transport method using the aforementioned offshore photovoltaic support stacking fixture, comprising:

[0017] S1. Install extension components on the outer walls of the barge on both sides of the hull, and install photovoltaic bracket stacking tooling components on the deck of the barge or on the extension components according to the number and position of the bottom outriggers.

[0018] S2. The offshore photovoltaic support structure is assembled on land and then transported on a barge.

[0019] S3. The first-layer photovoltaic support is hoisted into the barge using a lifting device, and the tips of the connecting legs at the bottom of the first-layer photovoltaic support are inserted into the support columns of the first-layer photovoltaic support on the deck, so that the first-layer photovoltaic support is fixed on the support columns of the first-layer photovoltaic support.

[0020] S4. Using lifting equipment, hoist the second-layer photovoltaic bracket and crossbeam into the barge, install and fix the crossbeam on the support column of the second-layer photovoltaic bracket, and insert the tip of the connecting leg at the bottom of the second-layer photovoltaic bracket into the crossbeam column, so that the second-layer photovoltaic bracket 3 is fixed on the crossbeam.

[0021] S5. Use lifting equipment to hoist the third-layer photovoltaic support into the barge, and insert the tips of the connecting legs at the bottom of the third-layer photovoltaic support into the support column of the third-layer photovoltaic support on the deck, so that the third-layer photovoltaic support is fixed on the support column of the third-layer photovoltaic support.

[0022] S6. Transport the multi-layered offshore photovoltaic support structure to the construction site by barge, and then dismantle the third-layer photovoltaic support structure, the second-layer photovoltaic support structure, the crossbeams, and the first-layer photovoltaic support structure in sequence from top to bottom.

[0023] S7. Use cranes to lift the offshore photovoltaic supports of each layer, move and install them on the top of the offshore steel pipe piles, and install the photovoltaic panels on the offshore photovoltaic supports.

[0024] The beneficial effects of the embodiments of the present invention are as follows: The offshore photovoltaic support stacking fixture provided by the embodiments of the present invention consists of barge widening and reinforcement fixtures and stacking fixtures. The structural design of each component fixture is simple and the loading and unloading operation is relatively convenient. In practical applications, it can realize the fixed connection with the barge and the extension of the photovoltaic support installation fixture structure at the height of the barge, thus meeting the stacking requirements of offshore photovoltaic supports and adapting to different structural types of offshore photovoltaic supports. The barge transportation method implemented by the offshore photovoltaic support stacking fixture can realize the transportation of multiple layers of photovoltaic supports in one go, improve the transportation efficiency of offshore photovoltaic supports, and reduce construction costs.

[0025] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained in accordance with the structures particularly pointed out in the description, claims and drawings.

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0027] 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.

[0028] Figure 1 This invention provides a schematic diagram of the barge widening and reinforcement fixture and the arrangement of the stacking fixture on the barge, which is part of an embodiment of the present invention.

[0029] Figure 2 This invention provides a schematic diagram of the barge widening and reinforcement fixture and the stacking fixture arranged on the barge, which is an embodiment of the present invention.

[0030] Figure 3 This is a schematic diagram of a marine photovoltaic support stacking fixture after the first layer of photovoltaic support has been installed, according to an embodiment of the present invention.

[0031] Figure 4 This invention provides a schematic diagram of the structure of the first layer photovoltaic support column for a stacking fixture for offshore photovoltaic systems;

[0032] Figure 5 This invention provides a schematic diagram of the split structure of the first layer photovoltaic support column of a marine photovoltaic support stacking fixture.

[0033] Figure 6 A schematic diagram of the insertion of the first-layer photovoltaic support column and the connecting leg at the bottom of the first-layer photovoltaic support in a marine photovoltaic support stacking fixture provided in an embodiment of the present invention;

[0034] Figure 7 This invention provides a schematic diagram of the connection and fixing of the first-layer photovoltaic support column to the connecting leg at the bottom of the first-layer photovoltaic support in a marine photovoltaic support stacking fixture.

[0035] Figure 8 This is a schematic diagram showing the installation position of the crossbeam in the second layer of the photovoltaic support in a stacking fixture for offshore photovoltaic supports, provided in an embodiment of the present invention.

[0036] Figure 9 An enlarged schematic diagram of the installation position of the crossbeam of a marine photovoltaic support stacking fixture in the second layer of the photovoltaic support, provided in an embodiment of the present invention;

[0037] Figure 10 This is a schematic diagram of the installation of the first layer of a marine photovoltaic support stacking fixture provided in an embodiment of the present invention;

[0038] Figure 11 This is a schematic diagram illustrating the connection and fixing of the crossbeam and the supporting column of the second-layer photovoltaic support in a stacking fixture for offshore photovoltaic support provided in an embodiment of the present invention.

[0039] Figure 12 This is a schematic diagram illustrating the connection and fixing of the crossbeam of a marine photovoltaic support stacking fixture to the connecting leg at the bottom of the second-layer photovoltaic support, as provided in an embodiment of the present invention.

[0040] Figure 13 This is a schematic diagram of the installation of the third layer of a marine photovoltaic support stacking fixture provided in an embodiment of the present invention;

[0041] Figure 14 A schematic diagram of a marine photovoltaic support stacking fixture provided in an embodiment of the present invention, which transports only one marine photovoltaic support at the third layer position;

[0042] Figure 15 A schematic diagram of a marine photovoltaic support stacking fixture provided in an embodiment of the present invention, which transports only one marine photovoltaic support at the first layer position;

[0043] Figure 16A schematic diagram of a marine photovoltaic support stacking fixture for simultaneously transporting two marine photovoltaic supports on the first and third layers, as provided in an embodiment of the present invention;

[0044] Figure 17 A schematic diagram of a marine photovoltaic support stacking fixture for simultaneously transporting two marine photovoltaic supports on the second and third layers, provided as an embodiment of the present invention;

[0045] Figure 18 This is a schematic diagram of a stacking fixture for offshore photovoltaic supports that can simultaneously transport three offshore photovoltaic supports, as provided in an embodiment of the present invention. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions 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.

[0047] Example 1

[0048] To facilitate understanding of this embodiment, in conjunction with Figures 1 to 13 This invention provides a detailed description of a marine photovoltaic support stacking fixture disclosed in an embodiment of the invention.

[0049] This embodiment provides a tooling for stacking and assembling offshore photovoltaic (PV) supports, comprising: barge widening and reinforcement tooling and PV support stacking and assembling tooling, wherein...

[0050] like Figures 1-2 As shown, the barge widening and reinforcement fixture consists of multiple sets of extension components 18, which are installed symmetrically on the outer walls of the barge's port and starboard sides along the barge's length.

[0051] The photovoltaic support stacking fixture consists of multiple sets of photovoltaic support column components. Each set of photovoltaic support column components is installed on the deck of multiple extension components 18 and barge 17 at circumferential intervals. The top of the photovoltaic support column components can be used to install offshore photovoltaic supports.

[0052] Furthermore, each extension component 18 includes an outward support plate 15 and a plurality of reinforcing ribs 16, the reinforcing ribs 16 being fixedly mounted vertically and at equal intervals on the bottom surface of the outward support plate 15;

[0053] The photovoltaic support column assembly includes a first-layer photovoltaic support column 12, a second-layer photovoltaic support column 13, and a third-layer photovoltaic support column 14. The first-layer photovoltaic support column 12, the second-layer photovoltaic support column 13, and the third-layer photovoltaic support column 14 are vertically fixed on the deck or the extended support plate 15. The offshore photovoltaic support includes a first-layer photovoltaic support 2, a second-layer photovoltaic support 3, and a third-layer photovoltaic support 4.

[0054] Among them, the first-layer photovoltaic support column 12, the second-layer photovoltaic support column 13, and the third-layer photovoltaic support column 14 are all fixed to the deck or the extended support column 15 by bottom legs, and the number of bottom legs matches the number of the first-layer photovoltaic support column 12, the second-layer photovoltaic support column 13, and the third-layer photovoltaic support column 14.

[0055] In this embodiment, the third-layer photovoltaic support column 14 is composed of multiple support columns to meet the requirements of work efficiency.

[0056] like Figure 3 As shown, further, a first-layer photovoltaic bracket 2 is installed on the top of the first-layer photovoltaic bracket support column 12. The first-layer photovoltaic bracket 2 is provided with a first-layer photovoltaic bracket hoisting hole 21, a first-layer photovoltaic bracket reserved second-layer column hole 22, and a first-layer photovoltaic bracket reserved third-layer column hole 23. The first-layer photovoltaic bracket hoisting hole 21 is used to allow the lifting equipment to extend into it to lift the first-layer photovoltaic bracket 2. The first-layer photovoltaic bracket reserved second-layer column hole 22 and the first-layer photovoltaic bracket reserved third-layer column hole 23 are respectively used to allow the second-layer photovoltaic bracket support column 13 and the third-layer photovoltaic bracket support column 14 to extend out from the first-layer photovoltaic bracket 2.

[0057] like Figures 4-7 As shown, the top of the first-layer photovoltaic support column 12 is provided with a flange plate 26, and the top surface of the flange plate 26 is provided with an annular groove surrounding the central hole. The bottom of the first-layer photovoltaic support 2 is provided with connecting legs, which can be inserted into the top of the first-layer photovoltaic support column 12 in sequence through the pins 25.

[0058] When the connecting leg is inserted into the top of the first-layer photovoltaic support column 12, the connecting leg flange plate 27 can be embedded in the annular groove. Two arc-shaped fixing plates 24 are symmetrically arranged on the flange plate 26. The distance between the inner arcs of the two arc-shaped fixing plates 24 is smaller than the inner diameter of the annular groove. The arc-shaped fixing plates 24 can press the connecting leg flange plate 27 into the annular groove.

[0059] In this embodiment, the arc-shaped fixing plate 24 is fixed to the first flange plate 26 by screws.

[0060] like Figures 8-12 As shown, further, an intermediate column 58 is installed on the top of two adjacent second photovoltaic support columns 13. A crossbeam 5 is installed on the top of the two intermediate columns 58 through a detachable flange 52. The length of the intermediate column 58 can be adjusted according to actual needs. The second photovoltaic support column 13 can form an integral structure with the crossbeam 5. The second-layer photovoltaic support 3 is connected to the crossbeam column 56 on the crossbeam 5. The second-layer photovoltaic support 3 is provided with a second-layer photovoltaic support hoisting hole 31 and a reserved third-layer column hole. The second-layer photovoltaic support hoisting hole 31 is used to allow the lifting equipment to extend into it to hoist the second-layer photovoltaic support 3. The reserved third-layer column hole is used to allow the third-layer photovoltaic support column 14 to extend out from the second-layer photovoltaic support 3.

[0061] Among them, two sets of pressure plates 53 are symmetrically provided on the top of the crossbeam column 56. The pressure plates 53 are fixed to the crossbeam 5 by the rib plate 57. The pressure plates 53 can be adjusted by the bolt 54 and locked by the pin 55 to prevent the bolt 54 from loosening during transportation.

[0062] In this embodiment, the crossbeam 5 is also provided with a crossbeam lifting point 51, and the lifting equipment can lift the crossbeam 5 through the crossbeam lifting point 51.

[0063] like Figure 13 As shown, a third-layer photovoltaic bracket is installed above the third-layer photovoltaic bracket support column 14. The third-layer photovoltaic bracket 4 is provided with a third-layer photovoltaic bracket hoisting hole 41, which is used to allow the lifting equipment to extend into the hoisting device to lift the third-layer photovoltaic bracket 4.

[0064] As an optional implementation, the top structure of the third-layer photovoltaic support column is the same as that of the first-layer photovoltaic support column. That is, the top of the third-layer photovoltaic support column 14 is provided with a flange plate 26, and the top surface of the flange plate 26 is provided with an annular groove surrounding the central hole. The bottom of the first-layer photovoltaic support 2 is provided with a connecting leg, which can be inserted into the top of the third-layer photovoltaic support column 14 through the plug tip 25.

[0065] When the connecting leg is inserted into the top of the third-layer photovoltaic support column 14, the connecting leg flange plate 27 of the connecting leg can be embedded in the annular groove. Two arc-shaped fixing plates 24 are symmetrically arranged on the flange plate 26. The arc-shaped fixing plates 24 can press the connecting leg flange plate 27 into the annular groove. The distance between the inner arcs of the arc-shaped fixing plates 24 is smaller than the inner diameter of the annular groove.

[0066] Example 2

[0067] Combination Figures 14-18This embodiment discloses a barge transport method using the offshore photovoltaic support stacking fixture described in Embodiment 1, comprising:

[0068] S1. Install extension components 18 on the outer walls of the barge on both sides of the ship, and install photovoltaic bracket stacking tooling components on the deck of the barge 17 or on the extension components 18 according to the number and position of the bottom outriggers.

[0069] S2. The offshore photovoltaic support structure is assembled on land and transported simultaneously on barge 17.

[0070] S3. The first-layer photovoltaic bracket 2 is hoisted into the barge 17 using a lifting device, and the tip 25 of the connecting leg at the bottom of the first-layer photovoltaic bracket 2 is inserted into the first-layer photovoltaic bracket support column 12 on the deck, so that the first-layer photovoltaic bracket 2 is fixed on the first-layer photovoltaic bracket support column 12.

[0071] S4. Using lifting equipment, hoist the second-layer photovoltaic support 3 and the crossbeam 5 into the barge, install and fix the crossbeam 5 on the support column 13 of the second-layer photovoltaic support, and insert the tip 25 of the connecting leg at the bottom of the second-layer photovoltaic support 3 into the crossbeam column 56 of the crossbeam 5, so that the second-layer photovoltaic support 3 is fixed on the crossbeam 5.

[0072] S5. The third-layer photovoltaic support 4 is hoisted into the barge 17 using a lifting device, and the tip 25 of the connecting leg at the bottom of the third-layer photovoltaic support 14 is inserted into the third-layer photovoltaic support support column 14 on the deck, so that the third-layer photovoltaic support 4 is fixed on the third-layer photovoltaic support support column 14.

[0073] S6. Transport the multi-layered offshore photovoltaic support structure to the construction site via barge 17, and then dismantle the third-layer photovoltaic support structure 4, the second-layer photovoltaic support structure 3, the crossbeam 5 and the first-layer photovoltaic support structure 2 in sequence from top to bottom.

[0074] S7. Use cranes to lift the offshore photovoltaic supports of each layer, move and install them on the top of the offshore steel pipe piles, and install the photovoltaic panels on the offshore photovoltaic supports.

[0075] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0076] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A tooling for stacking and assembling offshore photovoltaic support structures, characterized in that, include: Barge widening and reinforcement fixtures and photovoltaic bracket stacking fixtures. The barge widening and reinforcement fixtures are composed of multiple extension components (18). The extension components (18) are installed on the outer walls of the left and right sides of the barge in a symmetrical manner according to the length direction of the barge. The photovoltaic bracket stacking fixture consists of multiple sets of photovoltaic bracket support column components. Each set of photovoltaic bracket support column components is installed on the deck of multiple extension components (18) and barge (17) at intervals along the circumference. The top of the photovoltaic bracket support column components can be used to install marine photovoltaic brackets.

2. The offshore photovoltaic support stacking fixture according to claim 1, characterized in that, The photovoltaic support column assembly includes a first-layer photovoltaic support column (12), a second-layer photovoltaic support column (13), and a third-layer photovoltaic support column (14). The first-layer photovoltaic support column (12), the second-layer photovoltaic support column (13), and the third-layer photovoltaic support column (14) are vertically fixed on the deck or the extended support plate (15). The offshore photovoltaic support includes a first-layer photovoltaic support (2), a second-layer photovoltaic support (3), and a third-layer photovoltaic support (4).

3. The offshore photovoltaic support stacking fixture according to claim 2, characterized in that, The top of the first-layer photovoltaic support column (12) is equipped with a first-layer photovoltaic support (2). The first-layer photovoltaic support (2) is provided with a first-layer photovoltaic support hoisting hole (21), a first-layer photovoltaic support reserved second-layer column hole (22), and a first-layer photovoltaic support reserved third-layer column hole (23). The first-layer photovoltaic support hoisting hole (21) is used to allow the lifting equipment to extend into it to hoist the first-layer photovoltaic support (2). The first-layer photovoltaic support reserved second-layer column hole (22) and the first-layer photovoltaic support reserved third-layer column hole (23) are respectively used to allow the second-layer photovoltaic support column (13) and the third-layer photovoltaic support column (14) to extend out from the first-layer photovoltaic support (2).

4. The offshore photovoltaic support stacking fixture according to claim 2, characterized in that, The top of the first-layer photovoltaic support column (12) is provided with a flange plate (26). The top surface of the flange plate (26) is provided with an annular groove surrounding the central hole. The bottom of the first-layer photovoltaic support (2) is provided with connecting legs. The connecting legs can be inserted into the top of the first-layer photovoltaic support column (12) in sequence through the pin (25). When the connecting leg is inserted into the top of the first-layer photovoltaic support column (12), the connecting leg flange plate (27) of the connecting leg can be embedded in the annular groove. Two arc-shaped fixing plates (24) are symmetrically arranged on the flange plate (26). The distance between the inner arcs of the two arc-shaped fixing plates (24) is smaller than the inner diameter of the annular groove. The arc-shaped fixing plates (24) can press the connecting leg flange plate (27) into the annular groove.

5. The offshore photovoltaic support stacking fixture according to claim 2, characterized in that, Two adjacent second photovoltaic bracket support columns (13) are equipped with intermediate columns (58) on their tops. A crossbeam (5) is installed on the top of the two intermediate columns (58) through a detachable flange (52). The length of the intermediate column (58) can be adjusted according to actual needs. The second photovoltaic bracket support column (13) can form an integral structure with the crossbeam (5). The second-layer photovoltaic bracket (3) is connected to the crossbeam column (56) on the crossbeam (5). The second-layer photovoltaic bracket (3) is provided with a second-layer photovoltaic bracket hoisting hole (31) and a reserved third-layer column hole. The second-layer photovoltaic bracket hoisting hole (31) is used to allow the lifting equipment to extend into it to hoist the second-layer photovoltaic bracket (3). The reserved third-layer column hole is used to allow the third-layer photovoltaic bracket support column (14) to extend out from the second-layer photovoltaic bracket (3).

6. The offshore photovoltaic support stacking fixture according to claim 5, characterized in that, Two sets of pressure plates (53) are symmetrically provided on the top of the crossbeam column (56). The pressure plates (53) are fixed to the crossbeam (5) by ribs (57). The pressure plates (53) can be adjusted by bolts (54) and locked by pins (55).

7. The offshore photovoltaic support stacking fixture according to claim 2, characterized in that, The third photovoltaic bracket is installed above the support column (14) of the third photovoltaic bracket. The third photovoltaic bracket (4) is provided with a hoisting hole (41) for the third photovoltaic bracket. The hoisting hole (41) is used to allow the lifting equipment to extend into it to lift the third photovoltaic bracket (4).

8. The offshore photovoltaic support stacking fixture according to claim 7, characterized in that, The top of the third-layer photovoltaic support column (14) is provided with a flange plate (26). The top surface of the flange plate (26) is provided with an annular groove surrounding the central hole. The bottom of the first-layer photovoltaic support (2) is provided with a connecting leg. The connecting leg can be inserted into the top of the third-layer photovoltaic support column (14) through the plug tip (25). When the connecting leg is inserted into the top of the third-layer photovoltaic support column (14), the connecting leg flange plate (27) of the connecting leg can be embedded in the annular groove. Two arc-shaped fixing plates (24) are symmetrically arranged on the flange plate (26). The arc-shaped fixing plates (24) can press the connecting leg flange plate (27) into the annular groove. The distance between the inner arcs of the arc-shaped fixing plates (24) is smaller than the inner diameter of the annular groove.

9. A method for barge transport of a marine photovoltaic support stacking fixture according to any one of claims 1 to 8, comprising: S1. Install extension components (18) on the outer walls of the port and starboard sides of the barge (17), and install photovoltaic bracket stacking tooling components on the deck of the barge (17) or on the extension components (18) according to the number and position of the bottom outriggers. S2. The offshore photovoltaic support structure is assembled on land and transported simultaneously on a barge (17). S3. The first-layer photovoltaic bracket (2) is hoisted into the barge (17) by a lifting device, and the tip (25) of the connecting leg at the bottom of the first-layer photovoltaic bracket (2) is inserted into the first-layer photovoltaic bracket support column (12) on the deck, so that the first-layer photovoltaic bracket (2) is fixed on the first-layer photovoltaic bracket support column (12). S4. The second-layer photovoltaic bracket (3) and the crossbeam (5) are hoisted into the barge using a lifting device. The crossbeam (5) is installed and fixed on the support column (13) of the second-layer photovoltaic bracket. The tip (25) of the connecting leg at the bottom of the second-layer photovoltaic bracket (3) is inserted into the crossbeam column (56) of the crossbeam (5), so that the second-layer photovoltaic bracket (3) is fixed on the crossbeam (5). S5. The third-layer photovoltaic bracket (4) is hoisted into the barge (17) using a lifting device, and the tip (25) of the connecting leg at the bottom of the third-layer photovoltaic bracket (14) is inserted into the third-layer photovoltaic bracket support column (14) on the deck, so that the third-layer photovoltaic bracket (4) is fixed on the third-layer photovoltaic bracket support column (14). S6. Transport the multi-layered offshore photovoltaic support structure to the construction site by barge (17), and then dismantle the third-layer photovoltaic support structure (4), the second-layer photovoltaic support structure (3), the crossbeam (5) and the first-layer photovoltaic support structure (2) from top to bottom. S7. Use cranes to lift the offshore photovoltaic supports of each layer, move and install them on the top of the offshore steel pipe piles, and install the photovoltaic panels on the offshore photovoltaic supports.

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