Seaborne photovoltaic large-span photovoltaic support flow construction method

Abstract

The invention provides an offshore photovoltaic large-span photovoltaic support flow construction method, and relates to the field of offshore photovoltaic technologies. The method comprises the steps that an assembling area is obtained and arranged at the front edge of a wharf; a jig frame structure is arranged in the assembling area; a preliminary support structure is formed at the top end of the jig frame structure, and the preliminary support structure comprises a plurality of lower chord members, a plurality of web members, a plurality of upper chord balls and a plurality of upper chord members; a purline structure is installed on the preliminary support structure; installing a photovoltaic panel on the purline structure to form a support structure; the support structure is hoisted through a hoisting device, a preset included angle is formed between the support structure and the sea level so that the support structure can be transferred to the transport ship, the support structure is fixed to the transport ship, and the preset included angle ranges from 10 degrees to 18 degrees; and the support structure is transported to the preset laying position through a transport ship, and the support structure is fixed to the preset laying position. The method can improve the construction reliability and construction efficiency of the support structure.

Description

Technical Field

[0001] The present disclosure relates to the field of offshore photovoltaic technology, and in particular to a method for the continuous construction of an offshore photovoltaic large-span photovoltaic support. Background Art

[0002] Offshore photovoltaics is a device that converts solar energy at sea into electrical energy. Since offshore resources are abundant and larger than land, making full use of offshore resources has become a research hotspot. Offshore resource utilization is also concentrated on offshore wind power generation equipment. When wind power generation equipment is deployed at sea, it only needs to consider the installation layout of the blades, and does not need to consider the position relationship between the equipment and the sun. Offshore photovoltaics need to use solar energy, and the layout of offshore wind power equipment cannot be applied to offshore photovoltaic equipment. At present, offshore photovoltaics usually use a support structure to support photovoltaic panels, but the overall volume of the support structure is relatively large, the construction difficulty is large, the construction efficiency is low, and the reliability of the formed support structure is poor.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0004] In view of this, a method for flowing water construction of an offshore photovoltaic large-span bracket is provided, which can improve the construction reliability and construction efficiency of the offshore photovoltaic bracket structure.

[0005] Other features and advantages of the present disclosure will become apparent from the following detailed description, or may be learned in part by the practice of the present disclosure.

[0006] According to one aspect of the present disclosure, a method for flowing water construction of an offshore photovoltaic large-span photovoltaic support is provided, the method comprising:

[0007] Acquire an assembly area, where the assembly area is set at the front of the wharf;

[0008] A tire frame structure is arranged in the assembly area, and the tire frame structure is used to provide support force for the splicing of the support structure;

[0009] A preliminary support structure is formed at the top of the tire frame structure, wherein the preliminary support structure includes a plurality of lower chord bars, a plurality of belly bars, a plurality of upper chord balls and a plurality of upper chord bars;

[0010] installing a purlin structure on the preliminary support structure;

[0011] Installing photovoltaic panels on the purlin structure to form a support structure;

[0012] The support structure is hoisted by a hoisting device so that the support structure has a preset angle with the sea level, so as to transfer the support structure to a transport ship and fix the support structure on the transport ship, wherein the preset angle is 10° to 18°;

[0013] The support structure is transported to a preset laying position by using the transport ship, and the support structure is fixed at the preset laying position.

[0014] In an exemplary embodiment of the present disclosure, the assembly area includes a first sub-assembly area, a second sub-assembly area, a third sub-assembly area and a fourth sub-assembly area which are sequentially distributed along a direction close to the coast and connected to each other through slide rails. The tire frame structure is arranged in the first sub-assembly area, and a preliminary support structure is formed at the top of the tire frame structure, including:

[0015] Arranging a plurality of lower chord rods at the top of the tire frame structure to form a lower chord structure of the support structure;

[0016] Connecting the plurality of web members to the plurality of lower chord members respectively through the plurality of upper chord balls to form a sub-bracket structure;

[0017] A plurality of the upper chords are installed on the sub-support structure to form the preliminary support structure.

[0018] In an exemplary embodiment of the present disclosure, after forming the preliminary support structure, the method further includes:

[0019] Sliding the preliminary support structure from the first sub-assembly area to the second sub-assembly area;

[0020] In the second sub-assembly area, the purlin structure is installed on the preliminary support structure.

[0021] In an exemplary embodiment of the present disclosure, the purlin structure includes purlins and purlin brackets, and in the second sub-assembly area, the purlin structure is installed on the preliminary support structure, including:

[0022] installing the purlins on the preliminary support structure;

[0023] Determine the purlin support position, and preliminarily install the purlin support at the purlin support position;

[0024] fixing the purlin support;

[0025] The purlin support is corrected for deformation.

[0026] In an exemplary embodiment of the present disclosure, after installing the purlin structure on the preliminary support structure, the method further includes:

[0027] Sliding the preliminary support structure having the purlin structure from the second sub-assembly area to the third sub-assembly area;

[0028] In the third sub-assembly area, the preliminary support structure having the purlin structure is subjected to anti-corrosion treatment.

[0029] In an exemplary embodiment of the present disclosure, the method further includes:

[0030] Sliding the preliminary support structure after anti-corrosion treatment from the third sub-assembly area to the fourth sub-assembly area;

[0031] The photovoltaic panel is installed on the purlin structure to form the support structure.

[0032] In an exemplary embodiment of the present disclosure, it is characterized in that a transport tool is provided on the slide rail, one end of the transport tool is connected to the slide rail, and the other end of the transport tool is connected to the support structure; the transport tool includes a first sliding structure and a hemispherical structure, the plane end 222 of the hemispherical structure is connected to the support structure, and the curved end 212 of the hemispherical structure is movably connected to the first sliding structure to adjust the posture of the support structure.

[0033] In an exemplary embodiment of the present disclosure, the transport ship includes a base tooling, and the base tooling includes four supporting points, and each of the supporting points is respectively connected to the support structure.

[0034] In an exemplary embodiment of the present disclosure, the height of each of the supporting points is adjustable.

[0035] In an exemplary embodiment of the present disclosure, the preset angle is 15°.

[0036] The present invention provides a method for the continuous construction of offshore photovoltaic large-span brackets. Firstly, by assembling the bracket structure in an assembly area arranged at the front of the wharf, a stable splicing environment is provided for subsequent brackets. Secondly, a tire frame structure is arranged in the assembly area, and the assembly of the bracket structure is completed on the tire frame structure. The tire frame structure can effectively position the bracket structure, improve the accuracy of the bracket structure splicing, and then improve the reliability and construction efficiency of the bracket structure, and avoid the tedious processes caused by repeated construction. Thirdly, by using a lifting device and a transport ship to transport the bracket structure, the difficulty of directly adjusting the posture of the bracket structure at sea can be reduced, and the construction efficiency can be further improved.

[0037] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0039] Figure 1 The present invention is a flow chart of a method for continuous construction of a large-span offshore photovoltaic support in an exemplary embodiment of the present invention.

[0040] Figure 2 It is a top view of a support structure in an exemplary embodiment of the present disclosure.

[0041] Figure 3 It is a schematic diagram of the structural distribution of an assembly area in an exemplary embodiment of the present disclosure.

[0042] Figure 4 It is a schematic diagram of the structural coordination between a transport tool and a slide rail in an exemplary embodiment of the present disclosure.

[0043] Figure 5 It is a schematic diagram of a hemispherical structure in a transport tooling in an exemplary embodiment of the present disclosure.

[0044] Figure 6 The present invention is a flowchart of assembling a support structure in an exemplary embodiment of the present invention.

[0045] Figure 7 A flow chart of installing a purlin structure in an exemplary embodiment of the present disclosure.

[0046] Figure 8 It is a structural schematic diagram of a support structure connected to a pile foundation in an exemplary embodiment of the present disclosure.

[0047] The reference numerals are described as follows:

[0048] 10. The front edge of the wharf; 101. The first sub-assembly area; 102. The second sub-assembly area; 103. The third sub-assembly area; 104. The fourth sub-assembly area; 105. The slide rail; 20. The transport tooling; 201. The first sliding structure; 202. The hemispherical structure; 212. The curved end of the hemispherical structure; 222. The flat end of the hemispherical structure; 301. The lower chord; 302. The web; 303. The upper chord ball; 304. The lower chord ball; 305. The upper chord; 100. The support structure; 200. The pile foundation. DETAILED DESCRIPTION

[0049] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present disclosure will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0050] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of the illustration to another component, these terms are used in this specification only for convenience, such as according to the orientation of the examples described in the drawings. It is understood that if the device of the illustration is turned upside down, the component described as "upper" will become the component "lower". When a structure is "on" other structures, it may mean that the structure is formed integrally on the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

[0051] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first", "second" and "third" etc. are used merely as labels and are not intended to limit the quantity of their objects.

[0052] In related technologies, offshore photovoltaics face the influence of many adverse factors on the ocean, such as sea breeze, tide, etc. When installing the support structure, it is necessary to consider the impact of marine factors on the structural integrity and installation reliability of the support structure. In addition, the construction efficiency of the support structure is also one of the important factors affecting the overall construction efficiency of offshore photovoltaics.

[0053] In the present disclosure, offshore photovoltaic refers to a system that is set up at sea and can convert solar energy into electrical energy. Offshore photovoltaic can include structures such as pile foundation structures, support structures and photovoltaic panels, wherein the pile foundation structure can refer to pipe piles, etc., one end of which is sunk into the sea and fixed below the sea level, and the other end thereof extends above the sea level, and the support structure can be supported by the pile foundation structure. The support structure is connected to one end of the pile foundation structure extending out of the sea level, and it usually has a cubic or quasi-cube shape, with two relatively large surfaces, one side facing the sea level is connected to the pile foundation structure, and the side facing away from the sea level is used for laying photovoltaic panels. Photovoltaic panels are laid on the support structure to convert solar energy into electrical energy.

[0054] It should be noted that offshore photovoltaics can also include structures of devices such as inverters for assisting in the conversion of electric energy. The offshore photovoltaics provided by the present disclosure should be understood to also include other structures necessary for offshore photovoltaic structures, and these structures will not be described in detail here. Among them, the inverter bracket can be included in the bracket structure, and the relative position relationship between the inverter bracket and the bracket structure body can be selected or adjusted according to the design requirements of the inverter.

[0055] Based on this, the embodiment of the present disclosure provides a method for the flow construction of a large-span photovoltaic bracket at sea, such as Figure 1 As shown, combined Figures 2 to 8 The method includes: steps S10 to S70.

[0056] Wherein, step S10: obtaining an assembly area, the assembly area is set at the front of the wharf 10;

[0057] Step S20: Arranging a tire frame structure in the assembly area, the tire frame structure is used to provide support for the assembly of the support structure 100;

[0058] Step S30: forming a preliminary support structure 100 at the top of the tire frame structure, wherein the preliminary support structure 100 includes a plurality of lower chord rods 301, a plurality of web rods 302, a plurality of upper chord balls 303 and a plurality of upper chord rods 305;

[0059] Step S40: installing a purlin structure on the preliminary support structure 100;

[0060] Step S50: installing photovoltaic panels on the purlin structure to form a support structure 100;

[0061] Step S60: hoisting the support structure 100 by using a hoisting device so that the support structure 100 has a preset angle with the sea level, so as to transfer the support structure 100 to a transport ship and fix the support structure 100 on the transport ship, wherein the preset angle is 10° to 18°;

[0062] Step S70: transport the support structure 100 to a preset laying position by using a transport ship, and fix the support structure 100 at the preset laying position.

[0063] The present disclosure provides a method for the continuous construction of a large-span photovoltaic support at sea, which provides a stable splicing environment for subsequent supports by assembling the support structure 100 in an assembly area set at the front edge of the wharf 10; a tire frame structure is set in the assembly area, and the assembly of the support structure 100 is completed on the tire frame structure. The tire frame structure can effectively position the support structure 100, improve the accuracy of the splicing of the support structure 100, and further improve the reliability and construction efficiency of the support structure 100, and avoid the tedious processes caused by repeated construction; by using a lifting device and a transport ship to transport the support structure 100, the difficulty of directly adjusting the posture of the support structure 100 at sea can be reduced, and the construction efficiency can be further improved.

[0064] The following will describe in detail the various steps of the method for the flow construction of a large-span photovoltaic bracket for offshore photovoltaics provided by the embodiment of the present disclosure in conjunction with the accompanying drawings:

[0065] In the embodiment provided by the present disclosure, in step S10, as Figure 3 As shown, the assembly area is obtained, and the assembly area is set at the dock front 10. Placing the support structure 100 in the dock front 10 area for assembly can avoid the influence of marine factors on the assembly of the support structure 100, and improve the splicing quality and reliability of the support structure 100. Among them, the dock front 10 refers to the dock area between the dock wall and the boundary of the preset use area, that is, extending from the position of the dock close to the coastline to the preset use area, and the preset use area can refer to the land area required for the assembly of the support structure 100.

[0066] In some embodiments, Figure 3 As shown, the assembly area may include a first sub-assembly area 101, a second sub-assembly area 102, a third sub-assembly area 103 and a fourth sub-assembly area 104 which are sequentially distributed along the coast direction and interconnected by a slide rail 105. Each sub-assembly area has different functions and effects, and adjacent sub-assembly areas are associated with each other. For example, adjacent sub-assembly areas may be associated with each other according to the assembly process of the support structure 100 so that the process of the support structure 100 proceeds smoothly in sequence to improve construction efficiency, and construction problems of the support structure 100 are discovered in time in each sub-assembly area to avoid accumulation of problems and reduction of safety of the support structure 100. In addition, after the assembly of the support structure 100 is completed in the fourth sub-assembly area 104, it may be directly hoisted and transported at sea, which shortens the transportation distance of the support structure 100 on land and improves transportation speed and efficiency.

[0067] Among them, Figure 4 As shown, combined Figure 3The slide rail 105 can be an integrated structure, and each slide rail 105 can be an I-beam structure. One end of the slide rail 105 is buried in the ground, and the other end is equipped with a transport tool 20. One end of the transport tool 20 is connected to the slide rail 105, and the other end of the transport tool 20 is connected to the support structure 100, including a preliminary support structure 100, a preliminary support structure 100 with a purlin structure, and a preliminary support structure 100 after anti-corrosion treatment.

[0068] like Figure 4 As shown, combined Figure 5 The transport tooling 20 includes a first sliding structure 201 and a hemispherical structure 202. The plane end 222 of the hemispherical structure is connected to the support structure 100, and the curved end 212 of the hemispherical structure is movably connected to the first sliding structure 201 to adjust the posture of the support structure 100. Among them, the first sliding structure 201 is provided with an arc circular track on one side close to the hemispherical structure 202, and the curved end 212 of the hemispherical structure matches the arc circular track, and the curved end 212 of the hemispherical structure can slide in the arc circular track to adjust the angle between the plane end 222 of the hemispherical structure and the ground, thereby adjusting the angle between the support structure 100 and the ground to adjust the posture of the support structure 100. The other end of the first sliding structure 201 is slidably connected to the slide rail 105, so that the first sliding structure 201 can slide back and forth linearly on the slide rail 105 to drive the support structure 100 to move.

[0069] In the embodiment provided in the present disclosure, the splicing process of the support structure 100 may include steps S20 to S50, in which a tire frame structure is arranged in the assembly area, and the tire frame structure is used to provide support for the splicing of the support structure 100; Figure 2 As shown, combined Figure 8 A preliminary support structure is formed at the top of the tire frame structure, and the preliminary support structure includes multiple lower chords 301, multiple webs 302, multiple upper chord balls 303 and multiple upper chords 305; a purlin structure is installed on the preliminary support structure; and photovoltaic panels are installed on the purlin structure to form a support structure 100.

[0070] Among them, the tire frame structure is arranged in the first sub-assembly area 101, and a preliminary support structure is formed at the top of the tire frame structure, including: a plurality of lower chord rods 301 are arranged at the top of the tire frame structure to form a lower chord structure of the support structure 100; a plurality of web rods 302 are respectively connected to a plurality of lower chord rods 301 through a plurality of upper chord balls 303 to form a sub-support structure 100; a plurality of upper chord rods 305 are installed on the sub-support structure 100 to form a preliminary support structure.

[0071] Before forming the preliminary support structure, each lower chord 301, each upper chord 305, each web 302 and each upper chord ball 303 and other components need to be inspected to ensure the integrity and correctness of the size of each component and eliminate damaged components.

[0072] The preliminary support structure may further include a plurality of lower chord balls 304, and the plurality of lower chord balls 304 are connected to a plurality of lower chord rods 301. The preliminary support structure 100 is composed of a lower chord structure, an upper chord structure and a web rod 302 structure. The lower chord structure is composed of a plurality of lower chord rods 301 connected by the lower chord balls 304, and the upper chord structure is composed of a plurality of upper chord rods 305 connected by the upper chord balls 303. The web rod 302 structure is connected between the upper chord balls 303 and the lower chord balls 304. The upper chord balls 303 and the lower chord balls 304 may be in a one-to-many or many-to-many relationship. The lower chord balls 304 are connected to the lower chord rods 301 and the web rods 302, and the upper chord balls 303 are connected to the upper chord rods 305 and the web rods 302. The upper chord structure and the lower chord structure are connected by the web rod 302 structure to form a preliminary support structure.

[0073] In the process of forming the preliminary support structure, the positional relationship between each upper chord rod 305, each lower chord rod 301 and each web rod 302 can be checked. For example, a tetrahedral structure can be adopted between the upper chord rod 305, the lower chord rod 301 and the web rod 302 connected at each upper chord ball 303 in the preliminary support structure. When the above structure does not meet the structural shape of the tetrahedral pyramid, the support structure 100 can be corrected in the first sub-assembly area 101 in time to ensure the accuracy of the splicing of the support structure 100. In addition, the connection between the upper chord rod 305, the lower chord rod 301 and the web rod 302 is carried out in steps, which reduces the cumulative effect of assembly errors and further improves the reliability of the support structure 100.

[0074] In some specific embodiments, Figure 6 As shown, the installation process of the preliminary support structure may include: step S110: construction preparation; step S120: connecting each component to the frame; step S130: assembly and acceptance of each component; step S140: assembly, fixing and welding of each component; step S150: welding quality acceptance; step S160: acceptance of the hoisting unit; step S170: adjustment of the assembly frame; step S180: next assembly support structure. Repeat the above steps S110 to S180 until the installation of the preliminary grid structure is completed.

[0075] Among them, in step S110, construction preparation may include construction site preparation; delivery of various components; inspection of various components; splicing site treatment; cradle construction; cradle acceptance; splicing process preparation; and splicing equipment preparation.

[0076] In step S130, the assembly acceptance of each component may include: self-inspection of splicing dimensions; assembly dimension correction; and assembly process acceptance. If the acceptance is qualified, step S140 is performed. If the acceptance is unqualified, correction processing is performed and acceptance is performed again.

[0077] In step S150, welding quality acceptance may include assembly welding self-inspection; welding quality inspection; paint repair. If paint repair is not required, welding quality processing is performed and welding quality inspection is performed again. If paint repair is required, step S160 is performed after paint repair.

[0078] After forming the preliminary support structure and before installing the photovoltaic panels, the method further includes: sliding the preliminary support structure from the first sub-assembly area 101 to the second sub-assembly area 102; and installing a purlin structure on the preliminary support structure in the second sub-assembly area 102. The purlin structure can provide an installation position and support and fixation function for the subsequent installation of the photovoltaic panels.

[0079] The purlin structure includes purlins and purlin supports. Installing the purlin structure on the preliminary support structure includes: installing the purlins on the preliminary support structure; determining the position of the purlin support and preliminarily installing the purlin support at the position of the purlin support; fixing the purlin support; and correcting the deformation of the purlin support. Specifically, when installing purlins, the positioning points of each purlin can be obtained first, and whether the height difference of the positioning points of each purlin needs to be adjusted can be determined according to the photovoltaic panel installation standard. If adjustment is required, the purlin is raised according to the required adjustment amount. For example, the position of the purlin can be raised using structures such as pads; when determining the position of the purlin support, the positioning of the purlin and the purlin support can be determined according to the installation standard of the photovoltaic panel to ensure that the position of the purlin support meets the installation standard of the photovoltaic panel; the purlin support can be fixed by bolt connection and the like; in order to improve the accuracy of the subsequent photovoltaic panel installation, the purlin support can be deformed and corrected to avoid the influence of force deformation on the photovoltaic panel installation during the purlin support installation, so as to achieve accurate installation of the photovoltaic panel.

[0080] In the above embodiment, the splicing of the purlin structure and the preliminary support structure is performed in the second sub-assembly area 102, and the installation accuracy of the purlin structure can be checked and corrected in real time, thereby improving the splicing accuracy of the entire structure.

[0081] It should be noted that the purlin brackets and purlins in the embodiment of the present disclosure are purlin brackets and purlins available in the art, and their specific structures and sizes can be selected according to the actual design requirements of the support structure 100, and are not specifically limited here.

[0082] In some specific embodiments, Figure 7 As shown, the installation process of the purlin structure may include:

[0083] Step S201: Preliminary support structure acceptance; Step S202: Purlin installation; Step S203: Span check; Step S204: Side purlin support position; Step S205: Preliminary purlin support installation; Step S206: Purlin support position review; Step S207: Fix purlin support; Step S208: Deformation correction; Step S209: Anti-corrosion treatment; Step S210: Next purlin installation; Step S211: Install fastening bolts; Step S212: Purlin misalignment check; Step S213: Purlin straightness check. Repeat the above steps until the purlin structure is installed.

[0084] Among them, after installing the purlin structure on the preliminary support structure, the method also includes: sliding the preliminary support structure with the purlin structure from the second sub-assembly area 102 to the third sub-assembly area 103; in the third sub-assembly area 103, performing anti-corrosion treatment on the preliminary support structure with the purlin structure.

[0085] Since the components in the support structure 100 can all be made of steel structures, and after the support structure 100 is fixed at the preset laying position, it is exposed to the influence of the marine environment, especially the strong corrosiveness of seawater, which will cause irreversible damage to the support structure 100, therefore, before the photovoltaic panels are laid on the support structure 100, the support structure 100 needs to be treated with anti-corrosion. In addition, in order to avoid the anti-corrosion treatment process being affected, the anti-corrosion treatment step is placed in the third sub-assembly area 103 to ensure the effectiveness of the anti-corrosion treatment.

[0086] Specifically, each component in the support structure 100 can be polished, sandblasted, etc. to improve the surface smoothness of the component structure, and the surface of each component can be cleaned. After cleaning, each component can be subjected to anti-corrosion treatment such as painting to improve the durability and service life of the support structure 100.

[0087] After the support structure 100 is subjected to anti-corrosion treatment, the method further includes: sliding the preliminary support structure after the anti-corrosion treatment from the third sub-assembly area 103 to the fourth sub-assembly area 104; installing photovoltaic panels on the purlin structure to form the support structure 100. In this step, the photovoltaic panels are installed on the purlin structure, that is, the photovoltaic panels are laid on the support structure 100, and the number and arrangement order of the photovoltaic panels can be adaptively adjusted according to the actual needs of the structure.

[0088] It should be noted that, since the volume and structure of each component in the support structure 100 are relatively large, the connection and assembly between the rods in the above embodiment can be carried out by lifting equipment such as a crane for lifting and transportation.

[0089] After the purlin structure is installed, the support structure 100 may also include structures such as an operation and maintenance channel and an inspection bridleway. For example, the operation and maintenance channel may be a steel frame structure and may be arranged at the edge of the support structure 100; the inspection bridleway may also be a steel frame structure, which may extend from the operation and maintenance channel to the inside of the support structure 100. The inspection bridleway may be arranged on the side of the support structure 100 facing the sea level, and the steel frame structure of the inspection bridleway may be connected to the position of the lower chord ball 304, so as to inspect the support structure 100 and the photovoltaic panels, etc. The operation and maintenance channel and the inspection bridleway and other structures may be installed in the fourth sub-assembly area 104.

[0090] In the embodiment provided in the present disclosure, after the support structure 100 is spliced, the method further includes: using a lifting device to lift the support structure 100 so that the support structure 100 has a preset angle with the sea level, so as to transfer the support structure 100 to a transport ship and fix the support structure 100 on the transport ship.

[0091] In order to improve the utilization rate of solar energy by photovoltaic panels, a preset angle is usually set between the photovoltaic panels and the sea level. The preset angle can be 10° to 18°. In order to further improve the absorption rate of the photovoltaic panels, the preset angle can be 15°.

[0092] Since the photovoltaic panels are arranged in the support structure 100, in order to avoid the influence of the marine environment on the posture adjustment of the support structure 100, the support structure 100 can usually be hoisted in the assembly area and the posture of the support structure 100 can be adjusted. Specifically, after the support structure 100 is spliced, it is placed in the fourth sub-assembly area 104, and the angle between it and the ground can be 0° or approximately 0°. The support structure 100 located in the fourth sub-assembly area 104 can be hoisted by a hoisting device. During the hoisting process, the posture of the support structure 100 is adjusted above the fourth sub-assembly area 104, so that the support structure 100 is adjusted from an angle of 0° or approximately 0° with the ground to a preset angle with the ground. This posture adjustment method can improve the accuracy of the subsequent installation of the support structure 100 and avoid the adverse effects of marine factors.

[0093] After the posture of the support structure 100 is adjusted, the support structure 100 can be transferred to a transport ship using a lifting device and fixed on the transport ship; the support structure 100 is transported to a preset laying position using the transport ship and fixed at the preset laying position.

[0094] In order to fix the support structure 100, the transport ship includes a base tooling, which includes four supporting points, each supporting point is respectively connected to the support structure 100. The support structure 100 can be fixed on the transport ship through the base tooling, which is convenient for transporting the support structure 100.

[0095] In order to ensure that the support structure 100 is transported in an adjusted posture, the height of each support point of the base tooling can be adjusted to adapt to the posture requirements of the support structure 100. Before the lifting device lifts the support structure 100 to the base tooling position of the transport ship, the height relationship between each support point can be adjusted according to the required posture of the support structure 100. For example, if the angle between the support structure 100 and the sea level is 15°, the height of each support point can be adjusted so that the angle between the line connecting the tops of two adjacent support points and the sea level is also 15° to meet the fixing requirements of the support structure 100. After the support structure 100 is hoisted to the base tooling, the support structure 100 can be fixedly connected to the base tooling by bolt connection or the like. In addition, in order to improve the stability of the base tooling, the base tooling and the transport ship can be integrally formed, or the base tooling can be fixedly connected to the transport ship by welding.

[0096] In the embodiment provided by the present disclosure, in step S70, as Figure 8 As shown, the support structure 100 is transported to a preset laying position by a transport ship, and the support structure 100 is fixed at the preset laying position.

[0097] Wherein, a pile foundation array is arranged at a preset laying position, and the pile foundation array includes a plurality of pile foundations 200, and the pile foundation 200 can be made of steel piles or concrete piles, etc. One end of each pile foundation 200 extends into the sea and is fixed to the seabed, and the other end of each pile foundation 200 extends above the sea level. In order to improve the stability of the pile foundation 200, the size (diameter) of the part of the pile foundation 200 in the sea can be larger than the size of the part of the pile foundation 200 located above the sea level, that is, the pile foundation 200 can be a variable diameter pipe pile structure.

[0098] After the support structure 100 is transported to a preset laying position with an array of pile foundations 200 by a transport ship, the support structure 100 is hoisted to the top position of the pile foundation 200 by an offshore lifting device while maintaining its posture, and the support structure 100 is connected to the pile foundation 200 by flange welding to complete the installation of the support structure 100.

[0099] It should be noted that, although the steps of the method for the flow-water construction of the offshore photovoltaic large-span photovoltaic bracket in the present disclosure are described in a specific order in the accompanying drawings, this does not require or imply that the steps must be performed in this specific order, or that all the steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps, etc.

[0100] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A method for the continuous construction of a large-span photovoltaic support at sea, characterized in that: include: Acquire an assembly area, where the assembly area is set at the front of the wharf; A tire frame structure is arranged in the assembly area, and the tire frame structure is used to provide support force for the splicing of the support structure; A preliminary support structure is formed at the top of the tire frame structure, wherein the preliminary support structure includes a plurality of lower chord bars, a plurality of belly bars, a plurality of upper chord balls and a plurality of upper chord bars; installing a purlin structure on the preliminary support structure; Installing photovoltaic panels on the purlin structure to form a support structure; The support structure is hoisted by a hoisting device so that the support structure has a preset angle with the sea level, so as to transfer the support structure to a transport ship and fix the support structure on the transport ship, wherein the preset angle is 10° to 18°; The support structure is transported to a preset laying position by using the transport ship, and the support structure is fixed at the preset laying position.

2. The method for the flow-water construction of a large-span photovoltaic support at sea according to claim 1 is characterized in that: The assembly area includes a first sub-assembly area, a second sub-assembly area, a third sub-assembly area and a fourth sub-assembly area which are sequentially distributed along the direction close to the coast and connected to each other through slide rails. The tire frame structure is arranged in the first sub-assembly area, and a preliminary support structure is formed on the top of the tire frame structure, including: Arranging a plurality of lower chord rods at the top of the tire frame structure to form a lower chord structure of the support structure; Connecting the plurality of web members to the plurality of lower chord members respectively through the plurality of upper chord balls to form a sub-bracket structure; A plurality of the upper chords are installed on the sub-support structure to form the preliminary support structure.

3. The method for the continuous construction of a large-span photovoltaic support at sea according to claim 2 is characterized in that: After forming the preliminary support structure, the method further comprises: Sliding the preliminary support structure from the first sub-assembly area to the second sub-assembly area; In the second sub-assembly area, the purlin structure is installed on the preliminary support structure.

4. The method for the flow-water construction of a large-span photovoltaic support at sea according to claim 3 is characterized in that: The purlin structure includes purlins and purlin brackets. In the second sub-assembly area, the purlin structure is installed on the preliminary support structure, including: installing the purlins on the preliminary support structure; Determine the purlin support position, and preliminarily install the purlin support at the purlin support position; fixing the purlin support; The purlin support is corrected for deformation.

5. The method for the flow-water construction of a large-span offshore photovoltaic support according to claim 3 is characterized in that: After installing the purlin structure on the preliminary support structure, the method further comprises: Sliding the preliminary support structure having the purlin structure from the second sub-assembly area to the third sub-assembly area; In the third sub-assembly area, the preliminary support structure having the purlin structure is subjected to anti-corrosion treatment.

6. The method for continuous construction of offshore photovoltaic large-span photovoltaic brackets according to claim 5, characterized in that: The method further comprises: Sliding the preliminary support structure after anti-corrosion treatment from the third sub-assembly area to the fourth sub-assembly area; The photovoltaic panel is installed on the purlin structure to form the support structure.

7. The method for the continuous construction of a large-span photovoltaic support at sea according to claim 2, characterized in that: A transport tooling is provided on the slide rail, one end of the transport tooling is connected to the slide rail, and the other end of the transport tooling is connected to the support structure; the transport tooling includes a first sliding structure and a hemispherical structure, the plane end 222 of the hemispherical structure is connected to the support structure, and the curved end 212 of the hemispherical structure is movably connected to the first sliding structure to adjust the posture of the support structure.

8. The method for continuous construction of offshore photovoltaic large-span photovoltaic brackets according to claim 1, characterized in that: The transport ship comprises a base tooling, and the base tooling comprises four supporting points, each of which is respectively connected to the support structure.

9. The method for continuous construction of offshore photovoltaic large-span photovoltaic brackets according to claim 8, characterized in that: The height of each supporting point can be adjusted.

10. The method for continuous construction of a large-span offshore photovoltaic support according to any one of claims 1 to 9, characterized in that: The preset angle is 15°.

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