Marine photovoltaic net rack supporting structure

Abstract

The invention relates to an offshore photovoltaic net rack supporting structure, and the structure comprises a first net rack layer which can be provided with a photovoltaic module; the second net rack layer is arranged below the first net rack layer, and the second net rack layer and the first net rack layer are arranged in parallel up and down; the plurality of inclined connecting components are arranged between the second net rack layer and the first net rack layer; the pile foundation is arranged below the second net rack layer; and the connecting assembly is connected between the pile foundation and the second net rack layer and can support the second net rack layer. According to the invention, the net rack is divided into the first net rack layer and the second net rack layer which are arranged up and down through a layering method, the first net rack layer facilitates the installation of the photovoltaic module, and then the inclined connecting member is connected between the first net rack layer and the second net rack layer, so that the splicing steps can be simplified, and the construction efficiency is improved; and the connecting assembly is arranged and connected between the second net rack layer and the pile foundation, the supporting effect is guaranteed, and the marine environment influence can be reduced.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic structure technology, and specifically to a grid support structure for offshore photovoltaic systems. Background Technology

[0002] With the acceleration of global carbon emission reduction, sustainable clean energy has become the main driver, and the new energy industry has ushered in a new cycle of rapid development. The photovoltaic market is also experiencing an increasingly hot market. Large-scale onshore photovoltaic projects require a large amount of land area and land resources, while offshore photovoltaic power generation is a new way of energy utilization and resource development model.

[0003] Building power plants using photovoltaic technology on the ocean has the advantages of high power generation, small land occupation, and easy integration with industries such as wind power, aquaculture, and hydrogen production. The support structure of offshore photovoltaic power plants is mainly divided into two categories: pile-based fixed type and floating type. At present, offshore photovoltaic power is mainly based on pile-based fixed type (tidal flats and intertidal zone). However, the current pile-based fixed offshore photovoltaic support structure plus the photovoltaic modules installed on it has an excessive total weight. Moreover, the frequent changes in marine climate have seriously affected the pile-based fixed offshore photovoltaic support structure, making construction difficult, greatly prolonging the construction time, and the structure is prone to damage in bad weather. Inconvenient marine transportation and increased cost of replacing structural parts also contribute to the problem. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a grid support structure for offshore photovoltaic systems, solving the problems of excessive load, susceptibility to weather conditions, difficult construction, and high cost of existing pile-based fixed offshore photovoltaic support structures.

[0005] The technical solution to achieve the above objective is: a grid support structure for offshore photovoltaic systems, comprising: a first grid layer on which photovoltaic modules can be installed; a second grid layer disposed below the first grid layer, the second grid layer and the first grid layer being arranged vertically parallel; a plurality of oblique connecting members disposed between the second grid layer and the first grid layer; pile foundations disposed below the second grid layer; and a connecting component connecting the pile foundations and the second grid layer, providing support for the second grid layer.

[0006] In this invention, a grid support structure for offshore photovoltaic systems is provided. The grid is divided into a first grid layer and a second grid layer by layering. The first grid layer facilitates the installation of photovoltaic modules. The first grid layer and the second grid layer are connected by diagonal connecting components, which simplifies the assembly process and improves construction efficiency. The connecting components are set to connect the second grid layer and the pile foundation to ensure the support effect and reduce the environmental impact at sea.

[0007] A further improvement of the grid support structure for offshore photovoltaic systems of the present invention is that the first grid layer includes: a plurality of first upper chords arranged in rows at intervals; a plurality of second upper chords arranged in columns at intervals, and the second upper chords are cross-connected to the first upper chords.

[0008] A further improvement of the grid support structure for offshore photovoltaic systems of the present invention is that the second grid layer includes: a plurality of first lower chords, which are arranged in rows at intervals below a plurality of first upper chords; and a plurality of second lower chords, which are arranged in columns at intervals, and the second lower chords are cross-connected to the first lower chords.

[0009] A further improvement of the grid support structure for offshore photovoltaic systems of the present invention is that the first lower chord and the first upper chord are arranged parallel to each other vertically and staggered; the second lower chord and the second upper chord are arranged parallel to each other vertically and staggered.

[0010] A further improvement of the grid support structure for offshore photovoltaic systems of the present invention is that the oblique connecting member includes: a plurality of first oblique units, which are arranged in a column and spaced apart between the first grid layer and the second grid layer; and a plurality of second oblique units, which are arranged in a column between adjacent first oblique units and between the first grid layer and the second grid layer.

[0011] A further improvement of the grid support structure for offshore photovoltaic systems of the present invention is that a plurality of second oblique units are arranged at intervals in a column direction.

[0012] A further improvement of the grid support structure for offshore photovoltaic systems of the present invention is that the first inclined unit and the second inclined unit include a plurality of inclined web members, and the two ends of the inclined web members are respectively connected to the nodes of the first grid layer and the nodes of the second grid layer.

[0013] A further improvement of the grid support structure for offshore photovoltaic systems of the present invention is that the first inclined unit and the second inclined unit are connected between the second grid layer and the first grid layer to form a quadrangular pyramid structure.

[0014] A further improvement of the grid support structure for offshore photovoltaic systems of the present invention is that the connecting component includes: a plurality of connecting units, the plurality of connecting units being spaced apart between the pile foundation and the second grid layer, and the plurality of connecting units being arranged in parallel with each other.

[0015] A further improvement of the grid support structure for offshore photovoltaic systems of the present invention is that the connecting unit includes: a column, which is vertically arranged at the upper end of the pile foundation; and a plurality of connecting rods, which are connected between the second grid layer and the column. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a grid support structure for offshore photovoltaic systems according to the present invention.

[0017] Figure 2 This is a top view of the first grid layer of the present invention.

[0018] Figure 3 This is a top view of the second grid layer of the present invention.

[0019] Figure 4 This is a top view of a grid support structure for offshore photovoltaic systems according to the present invention.

[0020] Figure 5 This is a top view of the oblique connecting member of the present invention.

[0021] Figure 6 This is a front view of a grid support structure for offshore photovoltaic systems according to the present invention.

[0022] Figure 7 This is a side view of a grid support structure for offshore photovoltaic systems according to the present invention.

[0023] In the diagram: 1. First space frame layer; 11. First upper chord; 12. Second upper chord; 2. Second space frame layer; 21. First lower chord; 22. Second lower chord; 3. Diagonal connecting member; 31. First diagonal unit; 32. Second diagonal unit; 33. Diagonal web member; 4. Connecting assembly; 41. Connecting unit; 411. Column; 412. Connecting rod. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] See Figure 1 , Figure 1 This diagram shows a structural schematic of a grid support structure for offshore photovoltaic systems according to the present invention. The present invention provides a grid support structure for offshore photovoltaic systems, comprising: a first grid layer 1, on which photovoltaic modules can be mounted.

[0026] The first grid layer 1 provides a support point for the installation of photovoltaic modules.

[0027] In this embodiment, the first grid layer 1 is inclined, and the inclined surface faces the direction of light illumination, which facilitates the subsequent installation of photovoltaic modules.

[0028] The second space frame layer 2 is located below the first space frame layer 1, and the second space frame layer 2 is arranged vertically parallel to the first space frame layer 1.

[0029] The second space frame layer 2 and the first space frame layer 1 are set in the same direction and angle of inclination, and both the second space frame layer 2 and the first space frame layer 1 are set above the sea surface.

[0030] In this embodiment, the size of the second space frame layer 2 is smaller than the size of the first space frame layer 1. The second space frame layer 2 is located directly below the first space frame layer 1.

[0031] Multiple oblique connecting members 3 are disposed between the second space frame layer 2 and the first space frame layer 1.

[0032] The oblique connecting member 3 connects the second space frame layer 2 and the first space frame layer 1, forming an inverted trapezoidal space frame structure.

[0033] The pile foundation is located below the second grid layer 2.

[0034] Among them, the pile foundation is driven into the seabed below the second grid layer 2, which can ensure the stability of the upper supporting structure.

[0035] In this embodiment, two pile foundations are set up, which are parallel and opposite to each other, and are respectively set below the second grid layer 2.

[0036] Connection component 4 is connected between the pile foundation and the second space frame layer 2, and can provide support for the second space frame layer 2.

[0037] The bottom of the connecting component 4 is connected to the pile foundation, and the upper end supports the first grid layer 1, the second grid layer 2, and the inclined connecting component 3 connecting them.

[0038] See Figure 2 The image shows a top view of the first grid layer of the present invention. The present invention provides a grid support structure for offshore photovoltaic systems, wherein the first grid layer 1 includes a plurality of first upper chords 11 arranged in rows at intervals.

[0039] The multiple first upper chord members 11 are all the same size and are arranged parallel to each other on the same inclined plane. The spacing between adjacent first upper chord members 11 is also the same.

[0040] Multiple second upper chords 12 are arranged in a row at intervals, and the second upper chords 12 are cross-connected with the first upper chord 11.

[0041] The second upper chords 12 are all the same size, and the second upper chords 12 are perpendicular to the first upper chords 11. The second upper chords 12 are all obliquely connected to the first upper chords 11.

[0042] In this embodiment, a rectangular grid is formed by intersecting and connecting multiple first upper chord members 11 and multiple second upper chord members 12. The number of first upper chord members 11 and second upper chord members 12 is set according to actual construction needs and is not specifically limited here.

[0043] See Figure 3 The image shows a top view of the second grid layer of the present invention. The present invention provides a grid support structure for offshore photovoltaic systems, wherein the second grid layer 2 includes: a plurality of first lower chords 21, which are arranged in rows at intervals below a plurality of first upper chords 11.

[0044] The first lower chord 21 and the first upper chord 11 have the same structure and dimensions.

[0045] Multiple second lower chord members 22 are arranged in a row at intervals, and the second lower chord members 22 are cross-connected with the first lower chord member 21.

[0046] The second lower chord 22 has the same structural configuration as the second upper chord 12, but the size of the second lower chord 22 is smaller than that of the second upper chord 12.

[0047] In this embodiment, the cross-connection between the multiple first lower chord members 21 and the multiple second lower chord members 22 also forms a rectangular grid. The number of first lower chord members 21 and second lower chord members 22 is set according to actual construction needs and is not specifically limited here.

[0048] See Figure 4 The image shows a top view of a grid support structure for offshore photovoltaic systems according to the present invention. The present invention provides a grid support structure for offshore photovoltaic systems, wherein a first lower chord 21 and a first upper chord 11 are arranged parallel to each other vertically and at staggered intervals.

[0049] Each first lower chord 21 is located below the distance between two adjacent first upper chords 11, and the first lower chord 21 and the first upper chord 11 are staggered vertically.

[0050] The second lower chord 22 and the second upper chord 12 are arranged parallel to each other vertically and at staggered intervals.

[0051] Each second lower chord 22 is located below the distance between two adjacent second upper chords 12, and the second lower chord 22 and the second upper chord 12 are staggered vertically.

[0052] The present invention provides a grid support structure for offshore photovoltaics, wherein the oblique connecting member 3 includes: a plurality of first oblique units 31, which are arranged in a column and spaced apart between the first grid layer 1 and the second grid layer 2.

[0053] Multiple second inclined units 32 are arranged in a column between adjacent first inclined units 31, and multiple second inclined units 32 are arranged between the first space frame layer 1 and the second space frame layer 2.

[0054] The first grid layer 1 and the second grid layer 2 are both set as a grid. The first inclined unit 31 and the second inclined unit 32 are connected at the connection node of the grid. Through the first inclined unit 31 and the second inclined unit 32, the gravity of the photovoltaic module on the first grid layer 1 is distributed and transferred to the second grid layer 2 below, thus maintaining the support of the first grid layer 1.

[0055] See Figure 4 and Figure 5 , Figure 4 This shows a top view of a grid support structure for offshore photovoltaic systems according to the present invention. Figure 5 The diagram shows a top view of the oblique connecting member of the present invention. The present invention provides a grid support structure for offshore photovoltaic systems, wherein multiple second oblique units 32 are arranged at intervals in a column direction.

[0056] In this case, the outer nodes of the first grid layer 1 are each provided with multiple second oblique units 32 connected to the outer periphery of the second grid layer 2.

[0057] In this embodiment, the arrangement of multiple second inclined units 32 in a column-spaced manner is to reduce the number of second inclined units 32 connecting the first space frame layer 1 and the second space frame layer 2, thereby reducing the total weight of the structure. While meeting the deformation and stress requirements specified in the specifications, this approach saves costs and shortens construction time.

[0058] See Figure 4 and Figure 5 , Figure 4 This shows a top view of a grid support structure for offshore photovoltaic systems according to the present invention. Figure 5 The diagram shows a top view of the oblique connecting member of the present invention. The present invention provides a grid support structure for offshore photovoltaic systems. The first oblique unit 31 and the second oblique unit 32 include multiple oblique web members 33, the two ends of which are respectively connected to nodes of the first grid layer 1 and nodes of the second grid layer 2.

[0059] Among them, four inclined web members 33 are provided in the same first inclined unit 31 and the second inclined unit 32. The lower ends of the four inclined web members 33 are connected to the same node on the second grid layer 2, and the upper ends are respectively connected to the four corner connection nodes of the grid on the first grid layer 1 directly above.

[0060] The present invention provides a grid support structure for offshore photovoltaics, wherein a first inclined unit 31 and a second inclined unit 32 are connected between the second grid layer 2 and the first grid layer 1 to form a quadrangular pyramid structure.

[0061] In this structure, since the grid on the first grid layer 1 is set as a rectangular grid, four diagonal web members 33 are connected between the second grid layer 2 and the first grid layer 1 to form a quadrangular pyramidal structure.

[0062] See Figure 6 and Figure 7 , Figure 6 This shows a front view of a grid support structure for offshore photovoltaic systems according to the present invention. Figure 7 This image shows a side view of a grid support structure for offshore photovoltaic systems according to the present invention. The present invention provides a grid support structure for offshore photovoltaic systems, wherein the connecting component 4 includes: a plurality of connecting units 41, which are spaced apart between the pile foundation and the second grid layer 2, and are arranged in parallel with each other.

[0063] The height of the multiple connecting units 41 located below the second space frame layer 2 is set according to the height difference between the second space frame layer 2 and the pile foundation, and no specific restrictions are imposed here.

[0064] See Figure 6 and Figure 7 , Figure 6 This shows a front view of a grid support structure for offshore photovoltaic systems according to the present invention. Figure 7 This image shows a side view of a grid support structure for offshore photovoltaic systems according to the present invention. The present invention provides a grid support structure for offshore photovoltaic systems, wherein the connecting unit 41 includes a column 411, which is vertically disposed at the upper end of the pile foundation.

[0065] The bottom end of column 411 is connected to the upper end of the pile foundation, and the upper end of column 411 extends upward out of the sea surface.

[0066] Multiple connecting rods 412 are connected between the second space frame layer 2 and the column 411.

[0067] One end of the connecting rod 412 is connected to the upper end of the column 411, and the other end is connected to the connection node of the first lower chord 21 and the second lower chord 22 in the second space frame layer 2.

[0068] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A grid support structure for offshore photovoltaic systems, characterized in that, include: The first grid layer, on which photovoltaic modules can be installed; The second space frame layer is disposed below the first space frame layer, and the second space frame layer is arranged vertically parallel to the first space frame layer. Multiple oblique connecting members are disposed between the second space frame layer and the first space frame layer; The pile foundation is located below the second grid layer; A connecting component is provided between the pile foundation and the second space frame layer, which can provide support for the second space frame layer.

2. The grid support structure for offshore photovoltaic systems according to claim 1, characterized in that, The first space frame layer includes: Multiple first upper chord members are arranged in a row at intervals; Multiple second upper chords are arranged in a row at intervals, and the second upper chords are cross-connected with the first upper chord.

3. A grid support structure for offshore photovoltaic systems according to claim 2, characterized in that, The second space frame layer includes: Multiple first lower chord members are arranged in a row at intervals below multiple first upper chord members; Multiple second lower chords are arranged in rows at intervals, and the second lower chords are cross-connected with the first lower chord.

4. A grid support structure for offshore photovoltaic systems according to claim 3, characterized in that, The first lower chord and the first upper chord are arranged parallel to each other vertically and at staggered intervals; The second lower chord and the second upper chord are arranged parallel to each other vertically and at staggered intervals.

5. A grid support structure for offshore photovoltaic systems according to claim 1, characterized in that, The oblique connecting member includes: Multiple first oblique units are arranged in a column and spaced apart between the first space frame layer and the second space frame layer; Multiple second oblique units are arranged in a column between adjacent first oblique units, and multiple second oblique units are arranged between the first space frame layer and the second space frame layer.

6. A grid support structure for offshore photovoltaic systems according to claim 5, characterized in that, Multiple second oblique units are arranged at intervals in a column direction.

7. A grid support structure for offshore photovoltaic systems according to claim 5, characterized in that, The first inclined unit and the second inclined unit include a plurality of inclined web members, and the two ends of the inclined web members are respectively connected to the nodes of the first space frame layer and the nodes of the second space frame layer.

8. A grid support structure for offshore photovoltaic systems according to claim 5, characterized in that, The first oblique unit and the second oblique unit are connected between the second space frame layer and the first space frame layer to form a quadrangular pyramid structure.

9. A grid support structure for offshore photovoltaic systems according to claim 1, characterized in that, The connection component includes: Multiple connection units are arranged at intervals between the pile foundation and the second grid layer, and the multiple connection units are arranged in parallel with each other.

10. A grid support structure for offshore photovoltaic systems according to claim 9, characterized in that, The connection unit includes: A column, which is vertically disposed at the upper end of the pile foundation; Multiple connecting rods are connected between the second space frame layer and the column.

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