Flexible support structure for offshore photovoltaic

Abstract

The utility model provides a flexible support structure for offshore photovoltaic, which comprises supporting systems and side anchor pile systems, the adjacent supporting systems are connected through cable structures, stay cables connected with the supporting systems are arranged on the side anchor pile systems, and ground beams for jointly connecting side anchor piles are arranged in the side anchor pile systems; a supporting pile connected with a seabed surface is arranged in the supporting system, a supporting beam is arranged above the supporting pile, and a supporting column connected with the supporting beam is arranged on the pile top of the supporting pile. The side anchor piles are connected through the ground beams, horizontal force transmitted by a cable structure can be better resisted, and compared with an existing bearing platform, the concrete consumption can be greatly saved. Meanwhile, the secondary beams and the supporting system are connected through the stabilizing cables, the secondary beams are connected with the bearing cables, force can be transmitted to the supporting system and the anchoring system under the action of wind suction loads and horizontal wind loads, and the displacement of the whole structure is small and the stability is high under the action of the wind loads.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore photovoltaic brackets, and in particular to a flexible bracket structure for offshore photovoltaics. Background Art

[0002] Photovoltaic brackets are called the "skeleton" of photovoltaic power stations. They are special structural parts designed and installed in photovoltaic power generation systems to support and fix photovoltaic modules. They are important supporting structures in photovoltaic systems, and safety and ease of installation are their core requirements. For traditional photovoltaic brackets, due to their limitations in pile density, row spacing and clearance, they can no longer fully meet various needs in certain scenarios, especially in terms of land recombination and efficient use.

[0003] Especially compared with land-based photovoltaics, offshore photovoltaics have to withstand the complex effects of wave flow, which creates a large horizontal load on the pile body, resulting in a larger cross-section of the pile body. If the traditional land-based photovoltaic support structure is continued to be used, the cost of using piles will be huge; how to reduce the cost of using piles and reduce the cost of offshore photovoltaic construction has become a factor restricting the large-scale development of offshore photovoltaics. Utility Model Content

[0004] The purpose of the utility model is to provide a flexible support structure with high area utilization and less support piles. To this end, the utility model adopts the following technical solutions:

[0005] A flexible support structure for offshore photovoltaics, comprising a support system and a side anchor pile system, wherein adjacent support systems are connected by a cable structure, the side anchor pile system is provided with an inclined cable connected to the support system, and the side anchor pile system is provided with a ground beam connecting the side anchor piles together; support piles connected to the seabed surface are provided in the support system, support beams are provided above the support piles, support columns connected to the support beams are provided at the pile tops of the support piles, and the cable structure connects load-bearing cables and stabilizing cables between the support beams on both sides; photovoltaic arrangement partitions in which photovoltaic components are directly connected to the load-bearing cables are provided between adjacent support beams, a secondary beam hung and connected below the load-bearing cables is provided in the photovoltaic arrangement partition, a stabilizing cable middle section connected to the support column at the end thereof is provided in the photovoltaic arrangement partition, a stabilizing cable side section connecting the support column and the ground beam is provided on the stabilizing cable, a connection point connecting the middle section of the stabilizing cable is provided on the secondary beam, and a force transmission state from the support system to the side anchor pile system under load is formed through the stabilizing cable and the inclined cable.

[0006] Furthermore: the flexible support structure forms an integral photovoltaic arrangement area between the support systems at the outermost sides thereof, and the ends of the load-bearing cables are connected to the support beams at the outermost sides.

[0007] Furthermore: an oblique brace is provided between the support column and the support beam, and two ends of the oblique brace are respectively connected to the outer surface of the support column and the bottom of the support beam.

[0008] Furthermore: the support beams in the support piles are provided with several groups in the vertical direction to the load-bearing cables, and several groups of the support piles are connected to the support beams at the same time; and connecting beams are connected between adjacent support columns.

[0009] Furthermore: the side anchor piles are arranged in blocks within the side anchor pile system, and the ground beams are connected to the tops of the side anchor piles in each block to connect the anchor piles in the block together, and the sides of adjacent ground beams are fixedly connected to each other.

[0010] Furthermore: the secondary beam is provided with a first U-shaped cable clamp connected to the load-bearing cable and a second U-shaped cable clamp connected to the middle section of the stabilizing cable, and the opening of the first U-shaped cable clamp is arranged above the secondary beam, and the opening of the second U-shaped cable clamp is arranged below the secondary beam.

[0011] Furthermore: the middle section of the stabilizing cable is provided with staggered connection sections between adjacent secondary beams.

[0012] Furthermore: a connecting device is provided on the load-bearing cable, and the connecting device is simultaneously connected to the bottom of the photovoltaic components on both sides.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model connects the side anchor piles through the ground beam, which can better resist the horizontal force transmitted by the cable structure, and can greatly save the amount of concrete compared with the existing cap. At the same time, the utility model connects the secondary beam and the support system by the stabilizing cable, and the secondary beam is connected to the load-bearing cable. Under the action of wind suction load and horizontal wind load, the force can be transmitted to the support system and the anchoring system. Under the action of wind load, the displacement of the whole structure is relatively small, and the stability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the elevation layout diagram of the overall structure of the utility model;

[0016] Figure 2 It is a top view of the overall structure of the utility model;

[0017] Figure 3 It is a cross-sectional view of the support system of the utility model;

[0018] Figure 4 It is a cross-sectional view of the secondary beam of the utility model;

[0019] Figure 5 It is a three-dimensional schematic diagram of the connection between the secondary beam and the cable of the utility model;

[0020] Figure 6 This is a schematic diagram of the installation of the photovoltaic module of the utility model.

[0021] The markings in the attached drawings are: 1-support beam; 2-diagonal brace; 3-support column; 4-connecting beam; 5-support pile; 6-secondary beam; 7-side anchor pile; 8-ground beam; 9-load-bearing cable; 10-slant-stayed cable; 11-edge section of stabilizing cable; 12-middle section of stabilizing cable; 13-photovoltaic module; 14-connecting device; 151-first U-shaped cable clamp; 152-second U-shaped cable clamp. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0023] like Figure 1-6 As shown, a flexible support structure for offshore photovoltaics includes a support system and a side anchor pile system. Adjacent support systems are connected by a cable structure. A stay cable 10 connected to the support system is arranged on the side anchor pile system. A ground beam 8 connecting the side anchor piles 7 together is arranged in the side anchor pile system, which is mainly used to resist the horizontal force of the structure. Support piles 5 connected to the seabed surface are arranged in the support system. A support beam 1 is arranged above the support pile 5. A support column 3 connected to the support beam 1 is arranged on the top of the support pile 5. The cross-sectional area of ​​the support column 3 is smaller than the cross-sectional area of ​​the support pile 5. The cable structure connects a load-bearing cable 9 and a stabilizing cable between the support beams 1 on both sides. The load-bearing cable 9 Fixed above the supporting beam 1; a photovoltaic layout partition in which the photovoltaic components 13 are directly connected to the load-bearing cable 9 is provided between the supporting beams 1 of adjacent supporting systems, a secondary beam 6 is provided in the photovoltaic layout partition and is mounted and connected below the load-bearing cable 9, a stabilizing cable is provided in the photovoltaic layout partition with a stabilizing cable middle section 12 whose end is connected to the supporting column 3, a stabilizing cable side section 11 connecting the supporting column 3 and the ground beam 8 is provided on the stabilizing cable, a connection point connecting the stabilizing cable middle section 12 is provided on the secondary beam 6, the stabilizing cable middle section 12 and the stabilizing cable side section 11 are mainly used to resist wind suction, and a force transmission state from the supporting system to the side anchor pile system under load is formed through the stabilizing cable and the inclined cable 10.

[0024] In this embodiment, the support system is perpendicular to the seabed surface, and there are several of them, and two adjacent support systems form a span. Therefore, the flexible support structure forms an overall photovoltaic arrangement area between the support systems at the most side thereof, and the middle section of the load-bearing cable 9 is connected to the support beam 1 around the central photovoltaic arrangement partition, and the end of the load-bearing cable 9 is connected to the support beam 1 at the most side.

[0025] In this embodiment, two secondary beams 6 are provided in the middle of each span support system to divide the photovoltaic assembly 13 in the middle of the span into three equal parts.

[0026] It should be noted that the two side support systems have the same structural form as the mid-span support system, but the sizes of the components and piles are relatively large.

[0027] like Figure 3 As shown, the support system is further provided with a diagonal brace 2 between the support column 3 and the support beam 1. The diagonal brace 2 is V-shaped as a whole, and the two ends of each brace rod in the diagonal brace 2 are respectively connected to the outer surface of the support column 3 and the bottom of the support beam 1.

[0028] Among them, the support piles 5 in the supporting system are provided with several groups in the vertical direction of the load-bearing cable 9. In this embodiment, two groups are preferably arranged. Each group of support piles 5 is connected to the support beam 1 through a V-shaped diagonal brace 2 at the same time; and a connecting beam 4 is connected between adjacent support columns 3, so that the entire support system can be a whole and is welded from various components.

[0029] like Figure 1-2 As shown, the side anchor piles 7 are arranged in blocks in the side anchor pile system, the ground beams 8 are rhombus-shaped, and the upper and lower surfaces of the ground beams 8 are both planes. The ground beams 8 are connected to the tops of the side anchor piles 7 in each block to connect the anchor piles 7 in the block together, and the sides of adjacent ground beams 8 are fixed to each other. The side anchor pile system integrates the side anchor piles 7 into a whole through the ground beams 8 connected simultaneously in each block. The connection points for connecting the stabilizing cable edge section 11 and the inclined cable 10 are respectively set on the ground beams 8.

[0030] like Figure 4-5 As shown, the secondary beam 6 is connected to the load-bearing cable 9 at the top and to the stabilizing cable at the bottom, both of which are connected via U-shaped cable clips. Based on this, a first U-shaped cable clip 151 connected to the load-bearing cable 9 and a second U-shaped cable clip 152 connected to the middle section 12 of the stabilizing cable are provided on the secondary beam 6, and the opening of the first U-shaped cable clip 151 is arranged above the secondary beam 6, and the opening of the second U-shaped cable clip 152 is arranged below the secondary beam 6.

[0031] like Figure 2 and 5 As shown, the middle section 12 of the stabilizing cable is provided with a staggered connection section between adjacent secondary beams 6. Although the connection direction of the two middle sections 12 of the stabilizing cable in the staggered connection section is the same as the load-bearing cable 9, the connection point of one middle section 12 of the stabilizing cable on the adjacent secondary beam 6 is interchanged with the connection point of the other middle section 12 of the stabilizing cable on the adjacent secondary beam 6. Figure 2 as shown in .

[0032] like Figure 6 As shown, the load-bearing cable 9 is provided with a connecting device 14, which can be a cable buckle, which is completely fitted with the bottom of the frame of the photovoltaic module 13 to avoid relative sliding, and can achieve a firm connection between the load-bearing cable 9 and the photovoltaic module 13. The connecting device 14 connects the plurality of photovoltaic modules 13 arranged in each partition into a whole along the arrangement direction of the load-bearing cable 9.

[0033] At the same time, the connecting device 14 supports the photovoltaic components 13 only through two load-bearing cables 9. In addition to connecting adjacent photovoltaic components 13 on the load-bearing cables 9 along the extension direction of the load-bearing cables 9, it does not need to be connected to other components. Therefore, the truss assembly in the traditional flexible photovoltaic support structure is eliminated, the use of steel is greatly reduced, and the cost is saved.

[0034] In this embodiment, the support beam 1 and the secondary beam 6 are square steel pipes, the support column 3 and the connecting beam 4 are round steel pipes, the diagonal brace 2 is a variable diameter round steel pipe, the support pile 5 and the side anchor pile 7 are PHC piles, and the load-bearing cable 9, the inclined cable 10, the stabilizing cable edge section 11 and the stabilizing cable middle section 12 are prestressed steel strands. In actual projects, other types of steel and cables can be selected according to project needs. Please refer to Figure 1-6 When the flexible support structure is constructed offshore, the specific steps are as follows:

[0035] S1: prefabricate support piles 5, side anchor piles 7 and ground beams 8 on the shore, and install the prefabricated support piles 5, side anchor piles 7 and ground beams 8 respectively by hoisting according to the predetermined positions and angles at sea;

[0036] S2: Acceptance of support piles 5, side anchor piles 7 and ground beams 8;

[0037] S3: welding the support beam 1, the diagonal brace 2, the support column 3 and the connecting beam 4 into a whole, and then installing them on the support pile 5 by welding;

[0038] S4: Install the stay cable 10, connect its two ends to the ground beam 8 and the support beam 1 respectively, and then tension it to the designed cable force;

[0039] S5: Install the load-bearing cable 9, connect its two ends to the two outermost support beams 1 respectively, pass through the middle support beam 1, and then tension it to the designed cable force;

[0040] S6: Installing the photovoltaic assembly 13 to a predetermined position above the load-bearing cable 9 through the connecting device 14;

[0041] S7: Install the secondary beam 6 to a predetermined position below the load-bearing cable 9 and connect it via the first U-shaped cable clamp 151;

[0042] S8: Install the stabilizing cable. First, connect the side section 11 of the stabilizing cable to the ground beam 8 and the supporting beam 1, and then tension it to the designed cable force. Then, connect the secondary beam 6 to the supporting column 3 through the middle section 12 of the stabilizing cable, and then tension it to the designed cable force.

[0043] S9: Repeat the above steps until the photovoltaic array is installed.

[0044] The above embodiment is only a preferred technical solution of the present invention. Those skilled in the art should understand that the technical solutions or parameters in the embodiments can be modified or replaced without departing from the principle and essence of the present invention, and all should be included in the protection scope of the present invention.

Claims

1. A flexible support structure for offshore photovoltaics, comprising a support system and a side anchor pile system, wherein adjacent support systems are connected by a cable structure, and a stay cable (10) connected to the support system is arranged on the side anchor pile system, characterized in that: The side anchor pile system is provided with a ground beam (8) for connecting the side anchor piles (7) together; The support system is provided with support piles (5) connected to the seabed surface, support beams (1) are provided above the support piles (5), support columns (3) connected to the support beams (1) are provided at the tops of the support piles (5), and the cable structure connects the load-bearing cables (9) and the stabilizing cables between the support beams (1) on both sides; photovoltaic arrangement partitions in which the photovoltaic components (13) are directly connected to the load-bearing cables (9) are provided between adjacent support beams (1), and secondary beams (6) mounted and connected below the load-bearing cables (9) are provided in the photovoltaic arrangement partitions; the stabilizing cables are provided with a stabilizing cable middle section (12) whose ends are connected to the support columns (3) in the photovoltaic arrangement partitions, a stabilizing cable edge section (11) connecting the support columns (3) and the ground beam (8) is provided on the stabilizing cables, and a connection point connected to the stabilizing cable middle section (12) is provided on the secondary beam (6).

2. A flexible support structure for offshore photovoltaics according to claim 1, characterized in that: The flexible support structure forms an integral photovoltaic arrangement area between its outermost support systems, and the ends of the load-bearing cables (9) are connected to the outermost support beams (1).

3. A flexible support structure for offshore photovoltaics according to claim 1, characterized in that: An oblique brace (2) is also provided between the support column (3) and the support beam (1), and the two ends of the oblique brace (2) are respectively connected to the outer surface of the support column (3) and the bottom of the support beam (1).

4. A flexible support structure for offshore photovoltaics according to claim 1 or 3, characterized in that: A plurality of groups of support piles (5) in the support system are arranged in a vertical direction with respect to the load-bearing cable (9), and the plurality of groups of support piles (5) are simultaneously connected to the support beam (1); and a connecting beam (4) is connected between adjacent support columns (3).

5. The flexible support structure for offshore photovoltaics according to claim 1, characterized in that: The side anchor piles (7) are arranged in blocks within the side anchor pile system, and the ground beams (8) are connected to the tops of the side anchor piles (7) in each block to connect the anchor piles (7) in the block together, and the side surfaces of adjacent ground beams (8) are fixedly connected to each other.

6. A flexible support structure for offshore photovoltaics according to claim 1, characterized in that: The secondary beam (6) is provided with a first U-shaped cable clamp (151) connected to the load-bearing cable (9) and a second U-shaped cable clamp (152) connected to the middle section (12) of the stabilizing cable, and the opening of the first U-shaped cable clamp (151) is arranged above the secondary beam (6), and the opening of the second U-shaped cable clamp (152) is arranged below the secondary beam (6).

7. A flexible support structure for offshore photovoltaics according to claim 1, characterized in that: The middle section (12) of the stabilizing cable is provided with staggered connection sections between adjacent secondary beams (6).

8. The flexible support structure for offshore photovoltaics according to claim 1, characterized in that: The load-bearing cable (9) is provided with a connecting device (14), and the connecting device (14) is simultaneously connected to the bottom of the photovoltaic modules (13) on both sides.

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