Offshore single-pile photovoltaic large platform support structure

Abstract

The utility model provides an offshore single-pile photovoltaic large platform support structure which comprises pile foundations, at least four inclined struts are arranged on the pile foundations, the bottoms of the inclined struts are fixed to the pile foundations through hoops, the upper ends of every two adjacent inclined struts are connected and fixed through an inclined beam, at least four inclined struts are arranged on each pile foundation, and the single-pile large platform support structure is formed. The bearing performance of the pile foundation can be fully utilized, photovoltaic modules can be placed as many as possible on the basis that the structure is safe and reliable, the usage amount of steel per square meter is effectively reduced, and the effects of reducing the manufacturing cost and improving the yield are achieved.

Description

Technical Field

[0001] This utility model relates to the field of offshore photovoltaics, and in particular to a support structure for a large offshore monopile photovoltaic platform. Background Technology

[0002] Currently, photovoltaic (PV) power generation constitutes a major component of all types of natural energy power generation and is a hot topic in the new energy industry. However, its continuous development has also brought about some issues that require attention and resolution. For the entire PV power generation industry chain, profitability is of paramount importance. From a structural perspective, existing common PV structures all have certain limitations. In the offshore PV field, there are two common fixed structures: the traditional monopile fixed structure and the newly emerging large-span steel truss platform structure. The former is suitable for tidal flats or shallow waters, but its disadvantage is that a single PV support structure typically requires a large number of support piles, and in terms of vertical bearing capacity, the bearing capacity of a monopile structure cannot be fully utilized, resulting in significant waste of pile foundations. The large-span steel platform, supported by four piles, is suitable for water depths of 5-10 meters, fully utilizing the bearing capacity of the pile foundations. However, the amount of steel required for the upper large-span steel truss structure is considerable, resulting in poor overall economic efficiency and making it difficult to achieve the desired profitability. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a support structure for a large offshore monopile photovoltaic platform that can solve the problem of unsatisfactory yield of common fixed photovoltaic structures.

[0004] Therefore, the present invention adopts the following technical solution:

[0005] A support structure for a large offshore monopile photovoltaic platform includes a pile foundation, on which at least four diagonal braces are provided. The bottom of each diagonal brace is fixed to the pile foundation by a clamp, and the upper ends of two adjacent diagonal braces are connected and fixed by a diagonal beam.

[0006] Based on the above technical solutions, the present invention may also adopt the following further technical solutions, or combine these further technical solutions:

[0007] The diagonal bracing is divided into short diagonal bracing and long diagonal bracing according to its length. The short diagonal bracing is inclined towards the equator, and the long diagonal bracing is inclined in the opposite direction to the short diagonal bracing. The plane on which the diagonal beam is located is oriented towards the equator.

[0008] The middle parts of two adjacent diagonal braces are connected and fixed by a support member.

[0009] The pile foundation is provided with four diagonal braces, and four support members that connect the four diagonal braces in sequence form a quadrilateral. The middle parts of the two diagonal braces located at opposite corners of the quadrilateral are also connected and fixed by intersecting support members.

[0010] The middle parts of two adjacent short diagonal braces are connected and fixed by a support member. The support member, the diagonal beam, and the two short diagonal braces form a trapezoid. The diagonal parts of the trapezoid are connected and fixed by a cross support member.

[0011] The middle parts of two adjacent long diagonal braces are connected and fixed by a support member. The support member, the diagonal beam, and the two long diagonal braces form a trapezoid. The diagonal parts of the trapezoid are connected and fixed by a cross support member.

[0012] The support member is connected and fixed to the pile foundation by a connecting block.

[0013] Several purlins are fixed on the inclined beam.

[0014] A cable tray is fixed to the diagonal brace, and the cable tray is located near the lowest point of the diagonal beam.

[0015] Inverter bracket crossarms are fixed to the long diagonal brace and the cross support member. Inverters are fixed to the inverter bracket crossarms. The height of the inverter bracket crossarms and the inverter exceeds the lowest point of the diagonal beam.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects: at least four diagonal braces are set on each pile foundation to form a single pile large platform support structure, which can make full use of the bearing capacity of the pile foundation, and place as many photovoltaic modules as possible while ensuring structural safety and reliability, effectively reducing the amount of steel used per square meter, thereby reducing costs and increasing the rate of return. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the east-west structure of one embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the north-south structure of one embodiment of the present invention.

[0019] Figure 3 This is a simplified three-dimensional schematic diagram of the present invention. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote elements with the same or similar functions throughout. However, it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting this utility model. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size. It is understandable for those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this utility model.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0022] The present invention provides a support structure for a large offshore monopile photovoltaic platform, including a pile foundation 1, on which at least four diagonal braces 3 are provided. The bottom of the diagonal braces 3 is fixed to the pile foundation 1 by a clamp 2, and the upper ends of two adjacent diagonal braces 3 are connected and fixed by a diagonal beam 7.

[0023] In this embodiment, the diagonal brace 3 is a round rod welded together.

[0024] Pile foundation 1 is a precast high-strength concrete pipe pile or steel pipe pile, which serves as the load transferor for the photovoltaic support structure and must meet the load-bearing deformation design requirements.

[0025] In this embodiment, the clamp 2, compared to a typical pile foundation clamp, needs to meet the requirement of welding at least four diagonal braces 3 in four directions. To ensure safe and reliable support of the upper structure and effective load transfer, the clamp 2 needs to be widened and locally thickened.

[0026] The diagonal brace 3 is divided into short diagonal brace 31 and long diagonal brace 32 according to its length. The short diagonal brace 31 is inclined towards the equator, and the long diagonal brace 32 is inclined in the opposite direction to the short diagonal brace 3. The plane on which the diagonal beam 7 is located is oriented towards the equator.

[0027] The angle between the short diagonal brace 31 and the long diagonal brace 32 is sufficient to accommodate at least 3 rows of photovoltaic brackets, which is determined by calculation after determining the material input and return value.

[0028] The middle parts of two adjacent diagonal braces 3 are connected and fixed by support members 5.

[0029] In this embodiment, four diagonal braces 3 are provided on the pile foundation 1, and four support members 5 that are connected to the four diagonal braces 3 in sequence form a quadrilateral. The middle parts of the two diagonal braces 3 located at opposite corners of the quadrilateral are also connected and fixed by intersecting support members 5.

[0030] The middle of two adjacent short diagonal braces 31 are connected and fixed by a support member 5. The support member 5, the diagonal beam 7 and the two short diagonal braces 31 form a trapezoid. The diagonal of the trapezoid is connected and fixed by a cross support member 9.

[0031] The middle of two adjacent long diagonal braces 32 are connected and fixed by a support member 5. The support member 5, the diagonal beam 7 and the two long diagonal braces 32 form a trapezoid. The diagonal of the trapezoid is connected and fixed by a cross support member 9.

[0032] The support member 5 is connected and fixed to the pile foundation 1 by the connecting block 6.

[0033] In this embodiment, the connecting block 6 is a steel wedge-shaped block, and the pile foundation 1 is 5cm away from the intersection point of the intersecting support members 5 above it.

[0034] Several purlins 10 are fixed on the inclined beam 7.

[0035] like Figure 3 As shown, the inclined beam 7 is equipped with 8 purlins 10 parallel to the equatorial direction, and every two purlins 10 can fix a row of photovoltaic brackets. Figure 3 The purlins 10 can fix 4 rows of photovoltaic brackets, so the diagonal beams 7 on the four diagonal braces 3 can form a large installation platform, effectively increasing the number of photovoltaic brackets installed, effectively reducing the amount of steel per square meter of engineering, and saving economic costs.

[0036] A cable tray 8 is fixed on the diagonal brace 3. The cable tray 8 is a cable routing structure and is fixed by bolts. The cable tray 8 is close to the lowest point of the inclined beam 7. On the one hand, it can effectively prevent the cables and support structure from being corroded by seawater for a long time. On the other hand, it can minimize the distance between the diagonal braces 3 of two adjacent support platform structures, and avoid the need to set up support pile foundations due to excessive span.

[0037] Inverter bracket crossarm 11 is fixed on the long diagonal brace 32 and the cross support 9. Inverter 12 is fixed on the inverter bracket crossarm 11. The height of the inverter bracket crossarm 11 and the inverter 12 exceeds the lowest point of the inclined beam 7 to achieve the purpose of flood prevention. The inverter is installed on the inverter bracket crossarm 11, which can also save additional pile foundations and steel structure platforms.

[0038] The entire photovoltaic support structure and pile foundation can be prefabricated in the corresponding processing plant, which can effectively reduce construction procedures and reduce construction difficulty.

[0039] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use the marine monopile photovoltaic platform support structure of this utility model, and can produce the positive effects described in this utility model.

[0040] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. The terms "installed," "set," "equipped with," "connected," "connected," and "sleeve-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two mechanisms, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In the description of this utility model, it should be understood that the terms "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the mechanism or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first" and "second" are also used only for the sake of brevity in description and do not indicate or imply relative importance.

[0042] Furthermore, in practicing the claims of this utility model, those skilled in the art can understand and influence variations to the disclosed embodiments through a study of the drawings, the disclosure, and the appended claims. Additionally, in the claims and description, words such as "comprising" and "containing" do not exclude other elements or steps, and non-plural nouns do not exclude their plural forms.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the present utility model are covered by the scope of the claims of the present utility model, and will not be listed here.

Claims

1. A support structure for a large offshore monopile photovoltaic platform, characterized in that, Includes a pile foundation (1), on which at least four diagonal braces (3) are provided. The bottom of the diagonal braces (3) is fixed to the pile foundation (1) by a clamp (2), and the upper ends of two adjacent diagonal braces (3) are connected and fixed by a diagonal beam (7). The middle parts of two adjacent diagonal braces (3) are connected and fixed by a support member (5); The pile foundation (1) is provided with four diagonal braces (3), and four support members (5) that connect the four diagonal braces (3) in sequence form a quadrilateral. The middle parts of the two diagonal braces (3) located at opposite corners of the quadrilateral are also connected and fixed by the cross support members (5).

2. The support structure for a large offshore monopile photovoltaic platform as described in claim 1, characterized in that, The diagonal brace (3) is divided into a short diagonal brace (31) and a long diagonal brace (32) according to its length. The short diagonal brace (31) is inclined towards the equator, and the long diagonal brace (32) is inclined in the opposite direction to the short diagonal brace (31). The plane on which the diagonal beam (7) is located is oriented towards the equator.

3. The offshore monopile photovoltaic platform support structure as described in claim 2, characterized in that, The middle of two adjacent short diagonal braces (31) are connected and fixed by a support member (5). The support member (5), the diagonal beam (7) and the two short diagonal braces (31) form a trapezoid. The diagonal of the trapezoid is connected and fixed by a cross support member (9).

4. The support structure for a large offshore monopile photovoltaic platform as described in claim 2, characterized in that, The middle parts of two adjacent long diagonal braces (32) are connected and fixed by a support member (5). The support member (5), the diagonal beam (7) and the two long diagonal braces (32) form a trapezoid. The diagonal corners of the trapezoid are connected and fixed by a cross support member (9).

5. A support structure for a large offshore monopile photovoltaic platform as described in claim 1 or 4, characterized in that, The support member (5) is connected and fixed to the pile foundation (1) by a connecting block (6).

6. The support structure for a large offshore monopile photovoltaic platform as described in claim 1, characterized in that, Several purlins (10) are fixed on the inclined beam (7).

7. The support structure for a large offshore monopile photovoltaic platform as described in claim 1, characterized in that, A cable tray (8) is fixed on the diagonal brace (3), and the cable tray (8) is close to the lowest point of the diagonal beam (7).

8. The support structure for a large offshore monopile photovoltaic platform as described in claim 4, characterized in that, Inverter bracket crossarm (11) is fixed on the long diagonal brace (32) and the cross support (9), and inverter (12) is fixed on the inverter bracket crossarm (11). The height of the inverter bracket crossarm (11) and the inverter (12) exceeds the lowest point of the diagonal beam (7).

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