Overturning method for offshore photovoltaic net rack

Abstract

The invention provides an offshore photovoltaic net rack overturning method, and relates to the field of offshore photovoltaic technologies. The overturning method comprises the steps that a plurality of lifting columns distributed at intervals are formed in a to-be-installed area of the photovoltaic grid, the lifting columns extend in the direction perpendicular to the surface of the to-be-installed area, and lifting equipment is arranged at the tops of the lifting columns; a photovoltaic net rack is formed in the to-be-installed area, the photovoltaic net rack is arranged on the peripheries of the lifting columns in a sleeving mode, the photovoltaic net rack comprises a plurality of lifting openings exposed out of the lifting columns, and the lifting equipment is located on the side, away from the surface of the to-be-installed area, of the photovoltaic net rack; two supporting columns are formed on the outer side of the photovoltaic net rack; cable ropes are arranged on the supporting columns and the lifting columns so as to fix the lifting columns and the supporting columns; and the photovoltaic net rack is lifted through the lifting equipment until a preset included angle is formed between the photovoltaic net rack and the surface of the to-be-installed area. According to the overturning method, the construction difficulty can be reduced, and the net rack overturning efficiency can be improved.

Description

Technical Field

[0001] The present disclosure relates to the field of offshore photovoltaics, and in particular, to a method for flipping an offshore photovoltaic grid. Background Art

[0002] With the transformation of the global energy structure and the growing demand for sustainable development, the development and utilization of offshore renewable energy has become the focus of attention of all countries. Among them, offshore power generation projects, as an important way to utilize renewable energy, mainly include wind power projects and photovoltaic projects. At present, wind power projects occupy a dominant position in offshore power generation projects. Their installation technology is relatively mature, and the main focus is on the installation stability of the blades. There are no special restrictions on the specific location of the blades, which facilitates the flexible design and construction of wind power projects.

[0003] However, with the advancement of technology and the diversification of energy demand, offshore photovoltaic projects have gradually emerged and become a new hot spot for offshore renewable energy development. Compared with wind power projects, offshore photovoltaic projects have their own unique challenges and technical difficulties. The offshore environment is complex and changeable. Photovoltaic panels need to fully absorb solar energy to maximize power generation efficiency, while also reducing damage to photovoltaic panels caused by natural factors such as waves and wind. Therefore, the design of offshore photovoltaic projects must fully consider the location and angle layout of photovoltaic panels.

[0004] At the same time, in order to ensure that the photovoltaic panels can fully absorb solar energy, it is often necessary to flip the photovoltaic panels to a certain tilt angle. However, the flipping construction of the photovoltaic grid used to support the photovoltaic panels is currently difficult and the flipping efficiency is low.

[0005] 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

[0006] The present invention provides a method for flipping an offshore photovoltaic grid, which can reduce construction difficulty and improve grid flipping efficiency.

[0007] According to one aspect of the present disclosure, a method for flipping an offshore photovoltaic grid is provided, comprising:

[0008] A plurality of lifting columns are formed at intervals in the area to be installed of the photovoltaic grid, wherein the lifting columns extend in a direction perpendicular to the surface of the area to be installed, and a lifting device is provided on the top of the lifting columns;

[0009] A photovoltaic grid is formed in the area to be installed, the photovoltaic grid is sleeved on the outer periphery of each lifting column, and the photovoltaic grid includes a plurality of lifting openings that expose each lifting column respectively, and the lifting device is located on a side of the photovoltaic grid away from the surface of the area to be installed;

[0010] Two support columns are formed on the outside of the photovoltaic grid;

[0011] A guy rope is arranged on each of the support columns and each of the lifting columns to fix the lifting columns and the support columns;

[0012] The photovoltaic grid is lifted by the lifting device until the photovoltaic grid and the surface of the area to be installed present a preset angle.

[0013] In an exemplary embodiment of the present disclosure, the grid flipping method further comprises:

[0014] After the photovoltaic grid presents a preset angle with the surface of the area to be installed, a plurality of temporary support frames are arranged below the photovoltaic grid, and at least some of the temporary support frames have different heights. The photovoltaic grid is supported by each of the temporary support frames so that the photovoltaic grid maintains the preset angle with the surface of the area to be installed.

[0015] In an exemplary embodiment of the present disclosure, the step of forming a plurality of lifting columns distributed at intervals in the area to be installed of the photovoltaic grid comprises:

[0016] A first lifting column, a second lifting column, a third lifting column and a fourth lifting column are formed in the area to be installed, the first lifting column and the second lifting column are spaced apart along a first direction, the third lifting column and the fourth lifting column are spaced apart along the first direction; the first lifting column and the third lifting column are spaced apart along a second direction, the second lifting column and the fourth lifting column are spaced apart along the second direction, and the first direction intersects with the second direction; the first lifting column and the second lifting column are of equal height, the third lifting column and the fourth lifting column are of equal height, and the height of the first lifting column is greater than the height of the third lifting column.

[0017] In an exemplary embodiment of the present disclosure, two support columns are formed on the outside of the photovoltaic grid, including:

[0018] A first supporting column is formed on a side of the first lifting column away from the third lifting column; the first lifting column, the third lifting column and the first supporting column are collinearly distributed along the second direction;

[0019] A second supporting column is formed on a side of the second lifting column away from the fourth lifting column; the second lifting column, the fourth lifting column and the second supporting column are collinearly distributed along the second direction.

[0020] In an exemplary embodiment of the present disclosure, the number of the guy ropes is at least four, namely, a first guy rope, a second guy rope, a third guy rope and a fourth guy rope; one end of the first guy rope is fixed to a side of the first support column away from the first lifting column, and the other end passes through the top of the first support column, the top of the first lifting column, and the top of the third lifting column in sequence, and is fixed to the side of the third lifting column away from the first lifting column; one end of the second guy rope is fixed to a side of the second support column away from the second lifting column, and the other end passes through the top of the second support column, the top of the second lifting column, and the top of the fourth lifting column in sequence, and is fixed to the side of the fourth lifting column away from the second lifting column; one end of the third guy rope is fixed to a side of the first lifting column away from the second lifting column, and the other end passes through the top of the first lifting column, the top of the second lifting column in sequence, and is fixed to the side of the second lifting column away from the first lifting column; one end of the fourth guy rope is fixed to a side of the third lifting column away from the fourth lifting column, and the other end passes through the top of the third lifting column, the top of the fourth lifting column in sequence, and is fixed to the side of the fourth lifting column away from the third lifting column.

[0021] In an exemplary embodiment of the present disclosure, a plurality of temporary support frames are provided below the photovoltaic grid, including:

[0022] A plurality of temporary support rods are arranged below the photovoltaic grid;

[0023] The temporary support rod is limited and fixed by using a first limiting rope and a second limiting rope; the first limiting rope intersects with the second limiting rope.

[0024] In an exemplary embodiment of the present disclosure, a plurality of the temporary support frames are divided into a plurality of temporary support groups, different temporary support groups are distributed at intervals along the second direction, and each temporary support rod in the same temporary support group is distributed along the first direction; and each temporary support rod in the same temporary support group has the same height, and each temporary support rod in different temporary support groups has different heights.

[0025] In an exemplary embodiment of the present disclosure, the number of the temporary support frames is at least four.

[0026] In an exemplary embodiment of the present disclosure, the preset angle is 10 degrees to 20 degrees.

[0027] In an exemplary embodiment of the present disclosure, the photovoltaic grid is lifted by the lifting device until the photovoltaic grid and the surface of the area to be installed present a preset angle, including:

[0028] Lifting the first end of the photovoltaic grid by the lifting devices on the third lifting column and the fourth lifting column until the first end has a first distance from the surface of the area to be installed;

[0029] The second end of the photovoltaic grid is lifted by the lifting devices on the first lifting column and the second lifting column until the photovoltaic grid forms the preset angle with the surface of the area to be installed.

[0030] The disclosed offshore photovoltaic grid flipping method provides a stable support and power source for the flipping of the photovoltaic grid by setting a plurality of lifting columns distributed at intervals in the area to be installed of the photovoltaic grid and equipping the top lifting equipment, thereby ensuring the stability and safety during the flipping process and effectively avoiding the damage to the grid or installation failure caused by unstable support or insufficient power. By setting the photovoltaic grid on the outer periphery of the lifting column and providing a lifting opening to expose the lifting column, the lifting equipment can directly act on the grid to achieve precise lifting, which not only simplifies the installation process, but also improves the flipping efficiency and reduces the construction difficulty. At the same time, two support columns are set on the outside of the photovoltaic grid, and the support columns and the lifting columns are fixed by wind ropes, which can enhance the stability of the entire system and ensure the firmness and reliability of the grid during the flipping process. In addition, the photovoltaic grid is lifted by the lifting equipment until it presents a preset angle with the surface of the area to be installed, thereby achieving precise flipping of the photovoltaic grid, which not only meets the requirements of the photovoltaic panel for the optimal absorption angle of solar energy, but also improves the power generation efficiency of the photovoltaic system.

[0031] 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

[0032] 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.

[0033] Figure 1 It is a flow chart of the method for flipping the offshore photovoltaic grid in the embodiment of the present disclosure.

[0034] Figure 2 Schematic diagram of the distribution of multiple lifting columns and support columns in an embodiment of the present disclosure.

[0035] Figure 3 This is a schematic diagram of the photovoltaic grid before it is lifted in the embodiment of the present disclosure.

[0036] Figure 4 It is a schematic diagram of the photovoltaic grid after lifting in the embodiment of the present disclosure.

[0037] Figure 5 It is a schematic diagram of a temporary support frame in an embodiment of the present disclosure.

[0038] Figure 6 It is a schematic diagram of the distribution of multiple temporary support frames in an embodiment of the present disclosure.

[0039] In the figure: 10, photovoltaic grid; 101, area to be installed; 11, first lifting column; 12, second lifting column; 13, third lifting column; 14, fourth lifting column; 21, first supporting column; 22, second supporting column; 31, first guy rope; 32, second guy rope; 33, third guy rope; 34, fourth guy rope; 4, temporary supporting frame; 41, temporary supporting rod; 42, first limiting rope; 43, second limiting rope; 5, anchor; 6, supporting platform; 7, steel rope; x, first direction; y, second direction; α, preset angle. DETAILED DESCRIPTION

[0040] Example embodiments will now be described more fully with reference to the accompanying drawings. However, 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 this disclosure will be comprehensive and complete and will 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.

[0041] 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.

[0042] The terms "a", "an", "the" and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to indicate an open-ended inclusive meaning and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc. The terms "first", "second", "third" and "fourth" are used only as labels and are not intended to limit the quantity of their objects.

[0043] The disclosed embodiment provides a method for flipping a grid of an offshore photovoltaic system, such as Figure 1 As shown, the flipping method may include steps S110 to S150, wherein:

[0044] Step S110, forming a plurality of lifting columns distributed at intervals in the area to be installed of the photovoltaic grid, wherein the lifting columns extend in a direction perpendicular to the surface of the area to be installed, and a lifting device is provided on the top of the lifting columns;

[0045] Step S120, forming a photovoltaic grid in the area to be installed, wherein the photovoltaic grid is sleeved on the outer periphery of each lifting column, and the photovoltaic grid includes a plurality of lifting openings that expose each lifting column respectively, and the lifting device is located on a side of the photovoltaic grid away from the surface of the area to be installed;

[0046] Step S130, forming two support columns on the outside of the photovoltaic grid;

[0047] Step S140, installing a guy rope on each of the support columns and each of the lifting columns to fix the lifting columns and the support columns;

[0048] Step S150, lifting the photovoltaic grid by the lifting device until the photovoltaic grid and the surface of the area to be installed form a preset angle.

[0049] The disclosed offshore photovoltaic grid flipping method provides a stable support and power source for the flipping of the photovoltaic grid by setting a plurality of lifting columns distributed at intervals in the area to be installed of the photovoltaic grid and equipping the top lifting equipment, thereby ensuring the stability and safety during the flipping process and effectively avoiding the damage to the grid or installation failure caused by unstable support or insufficient power. By setting the photovoltaic grid on the outer periphery of the lifting column and providing a lifting opening to expose the lifting column, the lifting equipment can directly act on the grid to achieve precise lifting, which not only simplifies the installation process, but also improves the flipping efficiency and reduces the construction difficulty. At the same time, two support columns are set on the outside of the photovoltaic grid, and the support columns and the lifting columns are fixed by wind ropes, which can enhance the stability of the entire system and ensure the firmness and reliability of the grid during the flipping process. In addition, the photovoltaic grid is lifted by the lifting equipment until it presents a preset angle with the surface of the area to be installed, thereby achieving precise flipping of the photovoltaic grid, which not only meets the requirements of the photovoltaic panel for the optimal absorption angle of solar energy, but also improves the power generation efficiency of the photovoltaic system.

[0050] The following is a detailed description of the various steps and specific details of the offshore photovoltaic grid flipping method disclosed in the present invention:

[0051] like Figure 1 As shown, in step S110, a plurality of lifting columns distributed at intervals are formed in the area to be installed of the photovoltaic grid, the lifting columns extend in a direction perpendicular to the surface of the area to be installed, and a lifting device is provided on the top of the lifting columns.

[0052] The material of the lifting column can be a high-strength, corrosion-resistant material to ensure that it can withstand the huge tension and pressure during the photovoltaic grid lifting process. For example, the material can be metal or alloy. The lifting column can be columnar, and its cross-section can be circular, elliptical, polygonal or irregular. The material and shape of the lifting column are not specifically limited here.

[0053] In an exemplary embodiment of the present disclosure, the area to be installed may be a planar area. Figure 2 As shown, the lifting column can be fixed to the area to be installed by the anchor 5, and the lifting column can extend in a direction perpendicular to the surface of the area to be installed. It should be noted that verticality can be absolutely vertical or approximately vertical. There will inevitably be deviations during the construction process. In the present disclosure, the angle deviation may be caused by the limitation of the construction process, so that the angle between the lifting column and the surface of the area to be installed has a certain deviation. As long as the angle deviation is within the preset range, the lifting column and the surface of the area to be installed 101 can be considered to be perpendicular. For example, the preset range can be 10°, that is, when the angle between the lifting column and the surface of the area to be installed is greater than or equal to 80° and less than or equal to 100°, the lifting column and the surface of the area to be installed can be considered to be perpendicular.

[0054] The top of the lifting column is equipped with a lifting device (not shown in the figure), which can be driven by hydraulic or electric means and has sufficient lifting capacity and precise control performance. They are closely connected to the photovoltaic grid to be lifted through precise transmission mechanisms and connection devices, ensuring synchronization and coordination during the lifting process.

[0055] In an exemplary embodiment of the present disclosure, Figure 2 and Figure 3 As shown, a support platform 6 may be provided on the top of the lifting column, the support platform 6 may be in the shape of a plate or a block, the support platform 6 may have a support surface, the support surface may extend in a direction perpendicular to the lifting column, and the support surface is located on the side of the support platform 6 away from the surface of the area to be installed 101, and one end of the support platform 6 may be welded and fixed to the side wall of the lifting column. The lifting device may be fixed on the support surface.

[0056] In some embodiments of the present disclosure, the lifting device includes a hydraulic lifter (not shown in the figure) and a steel rope 7, wherein the hydraulic lifter may include a hydraulic pump station, a hydraulic cylinder, a piston, an output end and other components. The hydraulic cylinder is connected to the hydraulic pump station, which can provide high-pressure oil to the hydraulic cylinder, and the hydraulic pump station can serve as a power source for the hydraulic lifter; the piston is located in the hydraulic cylinder and is sealed with the inner wall of the hydraulic cylinder, thereby forming a sealed working chamber in the hydraulic cylinder, and the piston can reciprocate along the length direction of the hydraulic cylinder under the action of the hydraulic oil. The output end can be connected to the piston rod in the piston, and the output end can also be connected to one end of the steel rope 7.

[0057] In an exemplary embodiment of the present disclosure, please continue to refer to Figure 2 As shown, forming a plurality of lifting columns distributed at intervals in the area to be installed 101 of the photovoltaic grid 10 (i.e., step S110) may include: forming a first lifting column 11, a second lifting column 12, a third lifting column 13 and a fourth lifting column 14 in the area to be installed 101, the first lifting column 11 and the second lifting column 12 are distributed at intervals along the first direction x, and the first direction x may be any straight line direction parallel to the surface of the area to be installed 101, for example, it may be the length direction of the photovoltaic grid 10 to be formed later. The distance between the first lifting column 11 and the second lifting column 12 may be less than the length of the photovoltaic grid 10 to be formed. The third lifting column 13 and the fourth lifting column 14 are distributed at intervals along the first direction x; the third lifting column 13 and the fourth lifting column 14 and the first lifting column 11 and the second lifting column 12 may form two sets of parallel lifting column pairs, such a design not only makes the structure of the lifting system more balanced, but also improves its stability and wind pressure resistance in the first direction x.

[0058] In the present disclosure, while forming two groups of lifting column pairs in the first direction x, the layout of the lifting columns in the second direction y can also be considered. For example, the first lifting column 11 and the third lifting column 13 can be spaced apart along the second direction y, and the second direction y intersects with the first direction x, which can be perpendicular or oblique. For example, the second direction y can be the width direction of the photovoltaic grid 10 to be formed. The cross layout of the first direction x and the second direction y enables the four lifting columns to form a stable rectangular or oblique rectangular frame on the plane, which can enhance the overall stability of the lifting system. Correspondingly, the second lifting column 12 and the fourth lifting column 14 can also be spaced apart along the second direction y; the second lifting column 12 and the fourth lifting column 14 can form another group of cross lifting column pairs with the first lifting column 11 and the third lifting column 13. Such a design can ensure the stability and lateral force resistance of the lifting system in the second direction y.

[0059] In some embodiments of the present disclosure, please continue to refer to Figure 2 As shown, the heights of the first lifting column 11 and the second lifting column 12 are equal, the heights of the third lifting column 13 and the fourth lifting column 14 are equal, and the height of the first lifting column 11 is greater than the height of the third lifting column 13. The first lifting column 11 and the second lifting column 12 together constitute a group of high columns of the lifting system. In the subsequent process of lifting the photovoltaic grid 10, the first lifting column 11 and the second lifting column 12 will undertake the main lifting task and provide sufficient support height for the heavy objects that need to be lifted (for example, the photovoltaic grid 10). At the same time, the third lifting column 13 and the fourth lifting column 14 will serve as auxiliary supports, cooperate with the first lifting column 11 and the second lifting column 12, and jointly ensure the stability and safety of the lifting process.

[0060] like Figure 1 As shown, in step S120, a photovoltaic grid 10 is formed in the area to be installed 101, and the photovoltaic grid 10 is mounted on the outer periphery of each lifting column, and the photovoltaic grid 10 includes a plurality of lifting openings that expose each lifting column respectively, and the lifting device is located on the side of the photovoltaic grid 10 away from the surface of the area to be installed 101.

[0061] Please continue to see Figure 3 As shown, after fixing each lifting column and lifting equipment, a photovoltaic grid 10 can be formed in the area to be installed 101. The material of the photovoltaic grid 10 can be a material with strong rigidity, for example, the material can be metal or alloy. For example, the processed steel pipes or aluminum alloy pipes can be spliced ​​together by bolts, screws or welding on the periphery of each lifting column according to the design drawings to assemble into a frame structure, and a lifting opening (not shown in the figure) that matches the lifting column is reserved; then, the assembled photovoltaic grid 10 is subjected to anti-corrosion and aesthetic treatment to improve its durability and appearance quality.

[0062] like Figure 1 As shown, in step S130, two support columns are formed on the outside of the photovoltaic grid 10.

[0063] After the photovoltaic grid 10 is formed, at least two support columns may be formed on the outside of the photovoltaic grid 10. The support columns may be rod-shaped, and their cross-sections may be circular, elliptical, polygonal or irregular; the material of the support columns may be a material with strong rigidity, for example, the material may be a metal or an alloy. The shape and material of the support columns are not specifically limited here. In some embodiments of the present disclosure, the support columns may extend in a direction perpendicular to the surface of the area to be installed 101, and one end of the support column may be fixed to the surface of the area to be installed 101 by an anchor 5. The height of the support column may be at least twice the thickness of the photovoltaic grid 10.

[0064] In an exemplary embodiment of the present disclosure, forming two support columns on the outside of the photovoltaic grid 10 (ie, step S130) may include steps S210 and S220, wherein:

[0065] Step S210 , forming a first support column 21 on a side of the first lifting column 11 away from the third lifting column 13 ; the first lifting column 11 , the third lifting column 13 and the first support column 21 are collinearly distributed along the second direction y.

[0066] Please continue to see Figure 2 and Figure 3 As shown, the height of the first support column 21 may be less than that of the first lifting column 11 . For example, the height of the first support column 21 may be substantially equal to that of the third lifting column 13 . The first support column 21 may be located on a side of the first lifting column 11 away from the third lifting column 13 .

[0067] Step S220 , forming a second support column 22 on a side of the second lifting column 12 away from the fourth lifting column 14 ; the second lifting column 12 , the fourth lifting column 14 and the second support column 22 are collinearly distributed along the second direction y.

[0068] The height of the second support column 22 may be less than that of the second lifting column 12 . For example, the height of the second support column 22 may be substantially equal to that of the fourth lifting column 14 . The second support column 22 may be located on a side of the second lifting column 12 away from the fourth lifting column 14 .

[0069] like Figure 1 As shown, in step S140, a guy rope is arranged on each of the support columns and each of the lifting columns to fix the lifting columns and the support columns.

[0070] In an exemplary embodiment of the present disclosure, in order to enhance the stability and safety of the support system during the lifting process of the photovoltaic grid 10, a guy rope may be provided on each support column and each lifting column to firmly fix the lifting column and the support column, thereby preventing safety issues such as tilting or collapse due to instability of the lifting column during the lifting process of the photovoltaic grid 10.

[0071] Guy ropes can be made of high-strength, wear-resistant, and corrosion-resistant synthetic fiber materials, such as polyester or nylon. These materials have extremely high tensile strength and toughness, and can withstand the huge pulling forces in adverse weather conditions while maintaining good durability and stability.

[0072] In an exemplary embodiment of the present disclosure, each lifting column and each supporting column may be provided with a fixing ear (not shown in the figure) at the top, and the cable wind rope may be connected to the fixing ear. The fixing ear is made of a solid metal material, such as steel or aluminum alloy, to ensure a firm and reliable connection with the cable wind rope.

[0073] In an exemplary embodiment of the present disclosure, please continue to refer to Figure 2 As shown, the number of the guy ropes is at least four, namely a first guy rope 31, a second guy rope 32, a third guy rope 33 and a fourth guy rope 34, wherein:

[0074] One end of the first guy rope 31 is fixed to the side of the first support column 21 away from the first lifting column 11, and the other end passes through the fixing ear at the top of the first support column 21, the fixing ear at the top of the first lifting column 11, and the fixing ear at the top of the third lifting column 13 in sequence, and is finally fixed to the side of the third lifting column 13 away from the first lifting column 11. This layout enables the first guy rope 31 to pull the first support column 21 and the third lifting column 13 at the same time, enhancing their stability in the first direction x.

[0075] One end of the second guy rope 32 is fixed to the side of the second support column 22 away from the second lifting column 12, and the other end passes through the fixing ear at the top of the second support column 22, the fixing ear at the top of the second lifting column 12, and the fixing ear at the top of the fourth lifting column 14 in sequence, and is finally fixed to the side of the fourth lifting column 14 away from the second lifting column 12. The function of the second guy rope 32 is similar to that of the first guy rope 31, but it is aimed at the second support column 22 and the fourth lifting column 14.

[0076] One end of the third guy rope 33 is fixed to the side of the first lifting column 11 away from the second lifting column 12, and the other end passes through the fixing ears on the top of the first lifting column 11 and the fixing ears on the top of the second lifting column 12 in sequence, and is finally fixed to the side of the second lifting column 12 away from the first lifting column 11. The third guy rope 33 mainly enhances the stability between the first lifting column 11 and the second lifting column 12.

[0077] One end of the fourth guy rope 34 is fixed to the side of the third lifting column 13 away from the fourth lifting column 14, and the other end passes through the fixing ears on the top of the third lifting column 13 and the fixing ears on the top of the fourth lifting column 14 in sequence, and is finally fixed to the side of the fourth lifting column 14 away from the third lifting column 13. The function of the fourth guy rope 34 is similar to that of the third guy rope 33, but it is aimed at the third lifting column 13 and the fourth lifting column 14.

[0078] In the above design, the guy ropes tightly connect the lifting columns and the supporting columns together to form multiple (for example, four) triangular supporting frames, thereby significantly improving the wind pressure resistance, lateral force resistance and overall stability of the supporting system, and preventing the lifting columns and the supporting columns from tilting or collapsing during the process of lifting the photovoltaic grid 10, and other safety issues.

[0079] like Figure 1 As shown, in step S150, the photovoltaic grid 10 is lifted by the lifting device until the photovoltaic grid 10 and the surface of the area to be installed 101 present a preset angle α.

[0080] like Figure 4 As shown, each lifting device on each lifting column can be connected to the photovoltaic grid 10, and then the photovoltaic grid 10 is lifted by each lifting device, so that the photovoltaic grid 10 and the surface of the area to be installed 101 form a preset angle α.

[0081] In some embodiments of the present disclosure, the preset angle α may be 10 to 20 degrees, which can optimize the photovoltaic light reception on the photovoltaic grid 10, improve power generation efficiency, reduce dust accumulation and enhance self-cleaning ability, while enhancing structural stability, adapting to different terrain conditions, and ultimately improving economic benefits. For example, the preset angle α may be 10 degrees, 12 degrees, 14 degrees, 15 degrees, 16 degrees, 18 degrees or 20 degrees, and of course it can be other angles, which are not listed here one by one.

[0082] In an exemplary embodiment of the present disclosure, lifting the photovoltaic grid 10 by a lifting device until the photovoltaic grid 10 and the surface of the area to be installed 101 present a preset angle α (i.e., step S150) may include steps S310 and S320, wherein:

[0083] Step S310 , lifting the first end of the photovoltaic grid 10 by the lifting devices on the third lifting column 13 and the fourth lifting column 14 until the first end has a first distance from the surface of the to-be-installed area 101 .

[0084] The first end of the photovoltaic grid 10 can be lifted by the lifting equipment on the third lifting column 13 and the fourth lifting column 14. For example, the operator can start the hydraulic pump station on the third lifting column 13 and the fourth lifting column 14 to allow high-pressure oil to flow into the hydraulic cylinder to push the piston upward. The movement of the piston is transmitted to the steel strand 7 through the piston rod and the output end, thereby pulling the first end of the photovoltaic grid 10 upward. During the lifting process, the operator closely monitors the lifting height and speed to ensure that the first end of the photovoltaic grid 10 is gradually separated from the surface of the area to be installed 101 until the predetermined first spacing is reached.

[0085] The first spacing may be a manually set safety spacing, for example, it may be 0.5 meters to 2 meters, for example, it may be 0.5 meters, 1 meter, 1.5 meters or 2 meters. Of course, it may also be other spacings, which are not listed here one by one.

[0086] Step S320 , lifting the second end of the photovoltaic grid 10 by the lifting equipment on the first lifting column 11 and the second lifting column 12 until the photovoltaic grid 10 forms the preset angle α with the surface of the area to be installed 101 .

[0087] The second end may be an end that is directly opposite to the first end. For example, the first end and the second end may be two ends in the width direction of the photovoltaic grid 10, respectively. After the first end of the photovoltaic grid 10 is lifted, the second end of the photovoltaic grid 10 may be lifted by the lifting equipment on the first lifting column 11 and the second lifting column 12. Similarly, the operator starts the corresponding hydraulic pump station to move the piston in the hydraulic cylinder upward, and pulls the second end of the photovoltaic grid 10 upward through the steel rope 7. During the lifting process, the operator accurately controls the lifting height and speed of the second end according to the requirements of the preset angle α, ensuring that the photovoltaic grid 10 remains stable during the lifting process and gradually forms a preset angle α with the surface of the area to be installed 101.

[0088] In an exemplary embodiment of the present disclosure, Figure 5 As shown, the offshore photovoltaic grid flipping method disclosed in the present invention may also include:

[0089] Step S160, after the photovoltaic grid 10 and the surface of the area to be installed 101 present a preset angle α, a plurality of temporary support frames 4 are arranged below the photovoltaic grid 10, and at least some of the temporary support frames 4 have different heights, and the photovoltaic grid 10 is supported by each of the temporary support frames 4 so that the photovoltaic grid 10 and the surface of the area to be installed 101 maintain the preset angle α.

[0090] The position where the temporary support frame 4 needs to be set can be accurately measured and marked below the photovoltaic grid 10 presenting a preset angle α. According to the size, weight and preset angle α of the photovoltaic grid 10, select the appropriate type and specification of the temporary support frame 4. Install the temporary support frames 4 one by one according to the marked positions, and ensure that the contact surface with the photovoltaic grid 10 is stable and without shaking. The design of the temporary support frame 4 in the present disclosure can keep the photovoltaic grid 10 stable during the flipping and installation process, and maintain the preset angle α with the surface of the area to be installed 101.

[0091] In an exemplary embodiment of the present disclosure, setting a plurality of temporary support frames 4 below the photovoltaic grid 10 (ie, step S160) may include steps S410 and S420, wherein:

[0092] Step S410 , setting a plurality of temporary support rods 41 below the photovoltaic grid 10 .

[0093] like Figure 5 and Figure 6 As shown, the temporary support frame 4 may include a temporary support rod 41, which may be in the shape of a rod, and its cross section may be circular, elliptical, polygonal or irregular; the material of the temporary support rod 41 may be a material with strong rigidity, for example, its material may be metal or alloy. The shape and material of the temporary support rod 41 are not particularly limited here. In some embodiments of the present disclosure, the temporary support rod 41 may extend in a direction perpendicular to the surface of the area to be installed 101, and one end of the temporary support rod 41 may be fixed to the surface of the area to be installed 101 by an anchor 5.

[0094] Step S420, using the first limiting rope 42 and the second limiting rope 43 to limit and fix the temporary support rod 41; the first limiting rope 42 and the second limiting rope 43 intersect.

[0095] In some embodiments of the present disclosure, please continue to refer to Figure 6 As shown, in order to enhance the stability and reliability of the temporary support rod 41, the first limiting rope 42 and the second limiting rope 43 can be used to limit and fix the temporary support rod 41. The first limiting rope 42 intersects with the second limiting rope 43 and is firmly fixed to the temporary support rod 41 by fasteners (such as buckles, cable ties, etc.) to form a stable support network. The materials of the first limiting rope 42 and the second limiting rope 43 can be the same as those of the cable wind rope, which will not be repeated here.

[0096] In an exemplary embodiment of the present disclosure, please continue to refer to Figure 6As shown, a plurality of temporary support frames 4 can be divided into a plurality of temporary support groups, and different temporary support groups are evenly spaced along the second direction y (such as the width direction of the photovoltaic grid 10). The temporary support rods 41 in the same temporary support group are arranged in a straight line along the first direction x (such as the length direction of the photovoltaic grid 10) and have the same height. The height of the temporary support rods 41 in different temporary support groups is calculated and adjusted according to the preset angle α. When arranging the temporary support frames 4, the center of gravity position of the photovoltaic grid 10 should be taken into account to ensure that the support points are distributed around the center of gravity to avoid tilting or tipping of the photovoltaic grid 10 during the support process.

[0097] In some embodiments of the present disclosure, the number of temporary support frames 4 is at least four to ensure that the photovoltaic grid 10 has sufficient support points and stability during the flipping and installation process. According to the specific size and weight of the photovoltaic grid 10, the number of temporary support frames 4 can be appropriately increased to improve the support effect. When increasing the number of temporary support frames 4, care should be taken to maintain a uniform distribution of support points to avoid local overload or insufficient support. For particularly large or heavy photovoltaic grids 10, it may be considered to use more temporary support frames 4 or adopt a more stable support structure to ensure its safety.

[0098] 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 flipping an offshore photovoltaic grid, characterized in that: include: A plurality of lifting columns are formed at intervals in the area to be installed of the photovoltaic grid, wherein the lifting columns extend in a direction perpendicular to the surface of the area to be installed, and a lifting device is provided on the top of the lifting columns; A photovoltaic grid is formed in the area to be installed, the photovoltaic grid is sleeved on the outer periphery of each lifting column, and the photovoltaic grid includes a plurality of lifting openings that expose each lifting column respectively, and the lifting device is located on a side of the photovoltaic grid away from the surface of the area to be installed; Two support columns are formed on the outside of the photovoltaic grid; A guy rope is arranged on each of the support columns and each of the lifting columns to fix the lifting columns and the support columns; The photovoltaic grid is lifted by the lifting device until the photovoltaic grid and the surface of the area to be installed present a preset angle.

2. The grid flipping method according to claim 1, characterized in that: The grid flipping method also includes: After the photovoltaic grid presents a preset angle with the surface of the area to be installed, a plurality of temporary support frames are arranged below the photovoltaic grid, and at least some of the temporary support frames have different heights. The photovoltaic grid is supported by each of the temporary support frames so that the photovoltaic grid maintains the preset angle with the surface of the area to be installed.

3. The grid flipping method according to claim 2, characterized in that: The method of forming a plurality of lifting columns distributed at intervals in the area to be installed of the photovoltaic grid comprises: A first lifting column, a second lifting column, a third lifting column and a fourth lifting column are formed in the area to be installed, the first lifting column and the second lifting column are spaced apart along a first direction, the third lifting column and the fourth lifting column are spaced apart along the first direction; the first lifting column and the third lifting column are spaced apart along a second direction, the second lifting column and the fourth lifting column are spaced apart along the second direction, and the first direction intersects with the second direction; the first lifting column and the second lifting column are of equal height, the third lifting column and the fourth lifting column are of equal height, and the height of the first lifting column is greater than the height of the third lifting column.

4. The grid flipping method according to claim 3, characterized in that: The two support columns are formed on the outside of the photovoltaic grid, including: A first supporting column is formed on a side of the first lifting column away from the third lifting column; the first lifting column, the third lifting column and the first supporting column are collinearly distributed along the second direction; A second supporting column is formed on a side of the second lifting column away from the fourth lifting column; the second lifting column, the fourth lifting column and the second supporting column are collinearly distributed along the second direction.

5. The grid flipping method according to claim 4, characterized in that: The number of the guy ropes is at least four, namely, a first guy rope, a second guy rope, a third guy rope and a fourth guy rope; one end of the first guy rope is fixed to a side of the first support column away from the first lifting column, and the other end passes through the top of the first support column, the top of the first lifting column, and the top of the third lifting column in sequence, and is fixed to the side of the third lifting column away from the first lifting column; one end of the second guy rope is fixed to a side of the second support column away from the second lifting column, and the other end passes through the top of the second support column, the top of the second lifting column, and the top of the fourth lifting column in sequence, and is fixed to the side of the fourth lifting column away from the second lifting column; one end of the third guy rope is fixed to a side of the first lifting column away from the second lifting column, and the other end passes through the top of the first lifting column, the top of the second lifting column in sequence, and is fixed to the side of the second lifting column away from the first lifting column; one end of the fourth guy rope is fixed to a side of the third lifting column away from the fourth lifting column, and the other end passes through the top of the third lifting column, the top of the fourth lifting column in sequence, and is fixed to the side of the fourth lifting column away from the third lifting column.

6. The grid flipping method according to claim 3, characterized in that: A plurality of temporary support frames are arranged below the photovoltaic grid, including: A plurality of temporary support rods are arranged below the photovoltaic grid; The temporary support rod is limited and fixed by using a first limiting rope and a second limiting rope; the first limiting rope intersects with the second limiting rope.

7. The grid flipping method according to claim 6, characterized in that: The multiple temporary support frames are divided into multiple temporary support groups, different temporary support groups are spaced apart along the second direction, and the temporary support rods in the same temporary support group are distributed along the first direction; and the heights of the temporary support rods in the same temporary support group are the same, and the heights of the temporary support rods in different temporary support groups are different.

8. The grid flipping method according to claim 7, characterized in that: The number of the temporary support frames is at least four.

9. The grid flipping method according to claim 1, characterized in that: The preset angle is 10 to 20 degrees.

10. The grid flipping method according to claim 3, characterized in that: Lifting the photovoltaic grid by the lifting device until the photovoltaic grid and the surface of the area to be installed present a preset angle, including: Lifting the first end of the photovoltaic grid by the lifting devices on the third lifting column and the fourth lifting column until the first end has a first distance from the surface of the area to be installed; The second end of the photovoltaic grid is lifted by the lifting devices on the first lifting column and the second lifting column until the photovoltaic grid forms the preset angle with the surface of the area to be installed.

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