High-low arrangement of two-way cable net structure offshore photovoltaic support system

Abstract

The application provides a high-low arranged two-way cable net structure offshore photovoltaic supporting system, which comprises support piles and anchor piles, and a layout unit is formed in a partitioned region between the support piles or between the anchor piles and the support piles in the longitudinal direction; a truss structure and a cable net structure are arranged in the layout unit; the truss structure is connected with a truss beam at the top of adjacent pile bodies to form a surrounding for the layout unit; a vertical truss can be arranged at the top of the support pile in the layout unit; and the end of the truss beam is connected with the top of the vertical truss, so that the height difference and the sag of the end of the cable net structure in the longitudinal direction form an inclined cable plane. The application adopts the high-low arranged two-way cable net structure, uses the height difference and the sag of the cable to naturally form an inclined plane facing the south, and directly lays the photovoltaic components on the cable plane without arranging photovoltaic component modules, so that the power generation of the photovoltaic components is improved by the inclination of the photovoltaic components, and the amount of steel used is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of offshore photovoltaic power generation, in particular to a high-low arranged bidirectional cable net structure offshore photovoltaic supporting system. BACKGROUND

[0002] The existing offshore photovoltaic structures under construction or completed mostly adopt fixed photovoltaic, and the amount of piles and steel used are relatively large, and compared with the onshore photovoltaic structure, the pile foundation needs to bear the wave load in addition to the wind load, and the cost of single pile is high, therefore, flexible photovoltaic support can be used, but when the flexible photovoltaic support is applied to offshore photovoltaic project construction, the following problems still need to be solved:

[0003] (1) The traditional offshore suspension cable photovoltaic supporting structure is horizontally placed, which is not conducive to the light collection of the module and loses part of the power generation capacity; the traditional inclined offshore suspension cable photovoltaic supporting structure uses the inclined photovoltaic module, which realizes the southward inclination of the photovoltaic module, but brings the problems of larger stress on the module and more complex steel structure, resulting in the increase of the steel amount of the module.

[0004] (2) The sag of the cable of the traditional offshore suspension cable photovoltaic supporting structure is small, and the tension of the cable is large, which causes the large tension and large amount of work of the corresponding beam and anchoring structure.

[0005] (3) The traditional offshore suspension cable photovoltaic supporting structure often uses photovoltaic module installation, so that the steel structure of the photovoltaic module is made, and the steel amount is large, and it is necessary to save the steel amount of the module as much as possible.

[0006] Based on the above problems, how to improve the power generation capacity of offshore photovoltaic, and ensure the stability, reliability and durability of offshore photovoltaic module, and make the construction convenient, is the problem to be solved at present. SUMMARY

[0007] The purpose of the present application is to provide an offshore photovoltaic supporting system which improves the power generation capacity of photovoltaic module and ensures the stability of cable net structure. To this end, the present application adopts the following technical scheme:

[0008] The high-low arranged two-way cable net structure offshore photovoltaic supporting system comprises a support pile and an anchor pile, and a layout unit is formed in a partitioned region between the support piles or between the anchor pile and the support pile in the longitudinal direction. A truss structure and a cable net structure are arranged in the layout unit. The truss structure is connected with a truss beam at the top of the adjacent pile body to form a surrounding for the layout unit. A vertical truss can be arranged at the top of the support pile in the layout unit. The end of the truss beam is connected with the top of the vertical truss to make the end of the cable net structure form an inclined cable plane in terms of the height difference and the verticality in the longitudinal direction. The non-prestressed component cable and the prestressed stabilizing cable are arranged between the adjacent truss beams in the longitudinal and transverse directions. The non-prestressed component cable and the prestressed stabilizing cable are laid with photovoltaic components in the partitioned region. The photovoltaic components are connected with the block cable connecting structure matched with the prestressed stabilizing cable in the longitudinal direction.

[0009] Further, the support pile comprises a steel pipe pile. A variable-diameter pile section is arranged at the pile body near the mud surface. The top and bottom of the variable-diameter pile section are respectively provided with a first pile section and a second pile section with the same diameter as the pile diameter. Meanwhile, the pile diameter of the first pile section is smaller than that of the second pile section.

[0010] Further, the bottom of the second pile section is provided with a third pile section. The pile wall thickness of the third pile section is smaller than that of the second pile section. A hollow pipe is arranged inside the third pile section. A pile rib plate is arranged between the outer wall of the hollow pipe and the inner wall of the third pile section.

[0011] Further, the top of the support pile and the anchor pile is provided with a support. The support comprises a support pile support arranged at the top of the support pile, an anchor pile support arranged at the top of the anchor pile, and a truss support arranged at the top of the vertical truss. The bottom of the vertical truss is connected with the top of the support pile support. The top of the support pile support, the anchor pile support, and the truss support are all provided with a connecting plane. The end of the truss beam is provided with a fixing part on the connecting plane. The end of the truss beam in the low position of the layout unit is connected with the anchor pile support or the support pile support in the high position of the adjacent layout unit.

[0012] Further, a cable frame connecting structure is arranged between the cable net structure and the truss beam. The first connecting part and the second connecting part are arranged on the top chord on both sides of the truss beam. The non-prestressed component cable or the prestressed stabilizing cable is vertically arranged with the truss beam through the first connecting part and the second connecting part. The first connecting part comprises a first connecting plate connected with the top chord. A first connecting hole is arranged in the first connecting plate for the cable net structure to pass through. A wedge-shaped pad matched with the cable net structure is arranged in the first connecting hole. The second connecting part comprises a second connecting plate connected with the top chord. A buckle and a positioning rod matched with the second connecting plate are arranged on both sides of the cable net structure in the direction.

[0013] Further, the intersection of the non-prestressed component cable and the prestressed stabilizing cable is provided with a cross-shaped bidirectional cable buckle, the cross-shaped bidirectional cable buckle comprises upper and lower cover plates which are connected to each other, and the inner wall of the cover plate is provided with a groove matched with the non-prestressed component cable or the prestressed stabilizing cable.

[0014] Further, the block cable connection structure is provided with an end connection structure at the edge area of the cable plane, the end connection structure is provided with a third connecting plate at the bottom of the photovoltaic component, the third connecting plate is provided with a first U-shaped bolt matched with the prestressed stabilizing cable and a first U-shaped pad block, the notch of the first U-shaped bolt is arranged on one side of the third connecting plate, and the notch of the first U-shaped pad block is arranged on the other side of the third connecting plate.

[0015] Further, the sag of the prestressed component cable is arranged to be between 1 / 8 and 1 / 12.

[0016] Further, the block cable connection structure is provided with a middle connection structure at the internal area of the cable plane, the middle connection structure is provided with a fourth connecting plate at the bottom of the photovoltaic component, and adjacent photovoltaic components are connected to the fourth connecting plate through first connecting bolts; the fourth connecting plate is provided with a second U-shaped bolt matched with the prestressed stabilizing cable and a second U-shaped pad block, the notch of the second U-shaped bolt is arranged on one side of the fourth connecting plate, and the notch of the second U-shaped pad block is arranged on the other side of the fourth connecting plate.

[0017] Further, the cable net structure is further provided with a temporary construction structure, the two ends of the temporary construction structure are hung on adjacent prestressed stabilizing cables, and a third U-shaped bolt is arranged between the two ends, a flared locking groove is arranged below the end of the temporary construction structure, and a walkway plate is arranged at the middle part of the temporary construction structure.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] The present application adopts a high-low arranged bidirectional cable net structure, utilizes the height difference and sag of the cable to naturally form a southward inclined surface, directly lays the photovoltaic component on the cable plane without setting a photovoltaic component module, thereby improving the power generation capacity of the photovoltaic component while saving the amount of steel used; and since the component cable has large span and sag, small lateral stiffness and large deformation, a stabilizing cable is arranged transversely, the stabilizing cable is a prestressed cable, and the two ends of the stabilizing cable are fixed on the longitudinal boundary beams, so that the transverse stabilizing cable improves the stability of the entire cable net structure and avoids the deformation of the cable net structure under the action of wind load. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is an elevation view of the overall structure of the offshore photovoltaic supporting system of the present application;

[0021] Figure 2A plan view of the overall structure of the offshore photovoltaic support system of the present application;

[0022] Figure 3 An elevation view of the longitudinal edge beam of the present application;

[0023] Figure 4 A sectional view of the variable-diameter steel pipe pile of the present application;

[0024] Figure 5 A schematic view of the mud surface of the steel pipe pile of the present application;

[0025] Figure 6 An elevation view of the pile end of the steel pipe pile of the present application;

[0026] Figure 7 A plan view of the pile end of the steel pipe pile of the present application;

[0027] Figure 8 An elevation view of the support pile support of the present application;

[0028] Figure 9 A plan view of the support pile support of the present application;

[0029] Figure 10 An elevation view of the support pile support and vertical truss connection node of the present application;

[0030] Figure 11 A plan view of the support pile support and vertical truss connection node of the present application;

[0031] Figure 12 A schematic view of the anchor pile support of the present application;

[0032] Figure 13 An elevation view of the truss support and vertical truss connection node of the present application;

[0033] Figure 14 A plan view of the truss support of the present application;

[0034] Figure 15 A schematic view of the cable truss connection structure of the present application;

[0035] Figure 16 A first perspective elevation view of the cable truss connection structure of the present application;

[0036] Figure 17 A second perspective elevation view of the cable truss connection structure of the present application;

[0037] Figure 18 A plan view of the cable truss connection structure of the present application;

[0038] Figure 19 A plan view of the cross-shaped bidirectional cable buckle of the present application;

[0039] Figure 20Elevation view of the cross-shaped bidirectional cable cleat of the present invention;

[0040] Figure 21 Plan view of the middle connecting structure of the present invention;

[0041] Figure 22 Elevation view of the middle connecting structure of the present invention;

[0042] Figure 23 Plan view of the end connecting structure of the present invention;

[0043] Figure 24 Elevation view of the end connecting structure of the present invention;

[0044] Figure 25 Plan view of the installation of the photovoltaic module of the present invention;

[0045] Figure 26 Elevation view of the temporary construction structure during the construction period of the present invention;

[0046] Figure 27 Plan view of the temporary construction structure during the construction period of the present invention.

[0047] The marks in the drawings are: 1- support pile, 11- steel pipe pile, 111- first pile section, 112- variable-diameter pile section, 113- second pile section, 114- third pile section, 115 pile end plate, 12- hollow pipe, 13- pile rib plate, 2- anchor pile, 21- anchor pile body, 22- anchor pile end plate, 3- support, 31- support pile support, 311- first connecting steel plate, 312- upper hole-bearing square steel plate, 313- first ring cylinder plate, 314- first single-ear hanging plate, 315- lower hole-bearing ring steel plate, 316- second connecting bolt, 317- vertical truss connecting steel plate, 32- anchor pile support, 321- pile foundation connecting round steel plate, 322- third connecting bolt, 323- cut steel pipe, 324- round steel plate, 325- support rib plate, 326- second connecting steel plate, 327- connecting hanging ear, 33- truss support, 331- lower hole-bearing connecting steel plate, 332- second ring cylinder plate, 333- second single-ear hanging plate, 334- upper hole-bearing connecting steel plate, 4- truss structure, 41- truss beam, 411- upper chord, 412- lower chord, 413- first inclined web, 414- first horizontal web, 42- vertical truss, 421- chord, 422- second inclined web, 423- second horizontal web, 5- cable net structure, 51- non-prestressed component cable, 52- prestressed stabilizing cable, 6- photovoltaic component, 71- cable frame connecting structure, 711- connecting rib plate, 712- first connecting plate, 713- wedge-shaped cushion block, 714- positioning rod member, 715- second connecting plate, 716- buckle, 72- cross-shaped bidirectional cable buckle, 721- cover plate, 722- fourth connecting bolt, 73- end connecting structure, 731- first U-shaped bolt, 732- first U-shaped cushion block, 733- third connecting plate, 74- middle connecting structure, 741- fourth connecting plate, 742- first connecting bolt, 743- second U-shaped cushion block, 744- second U-shaped bolt, 8- fixed cable, 9- temporary construction structure, 91- slotted walkway plate frame, 92- steel grating, 93- connecting angle steel, 94- third U-shaped bolt, 95- steel cushion plate, 96- flared locking groove. DETAILED DESCRIPTION

[0048] The application is further described below in conjunction with the drawings and examples, but is not limited to the basis of the application.

[0049] The embodiment provides a marine photovoltaic power plant, wherein the photovoltaic power plant area has a normal water level water depth of 0.52 m, a mud surface elevation of -6 m to -4 m, a 50-year maximum wave height of 10 m, and a 50-year H1% wave height of 4.5 m.

[0050] As Figures 1-27As shown, the high-low arranged two-way cable net structure offshore photovoltaic supporting system comprises support piles 1 and anchor piles 2, and the support piles 1 and the anchor piles 2 are arranged in the surrounding area between the support piles 1 or between the anchor piles 2 and the support piles 1 in the longitudinal direction. The arrangement unit is formed in the surrounding area. The truss structure 4 and the cable net structure 5 are arranged in the arrangement unit. The truss structure 4 is connected with the truss beam 41 at the top of the adjacent pile body, so as to form a surrounding for the arrangement unit. The vertical truss 42 can be arranged at the top of the support pile 1 in the arrangement unit. The end of the truss beam 41 is connected with the top of the vertical truss 42, so that the height difference and the sag of the end of the cable net structure 5 in the longitudinal direction form an inclined cable plane. The non-prestressed component cable 51 and the prestressed stabilizing cable 52 are arranged between the adjacent truss beams 41 in the longitudinal and transverse directions. The photovoltaic component 6 is arranged in the partitioned area of the non-prestressed component cable 51 and the prestressed stabilizing cable 52. The photovoltaic component 6 is connected with the block cable connecting structure matched with the prestressed stabilizing cable 52 in the longitudinal direction.

[0051] As shown in the figure, Figure 2 Most of the support bases for the truss structure 4 in the arrangement unit are the support piles 1, but the starting part in the arrangement unit at the starting end of the overall offshore photovoltaic supporting system can connect the support piles 1 and the anchor piles 2 through the truss beam 41. The anchor pile 2 at this position can be arranged with the cable net structure 5 through the truss structure 4 in combination with the support pile 1. Meanwhile, the anchor pile 2 outside the support pile 1 of the arrangement unit is arranged to play a connecting role. The anchor pile 2 in the peripheral area is connected with the top of the support pile 1 in the arrangement unit through the fixed cable 8.

[0052] As shown in the figure, Figures 1-3 In this embodiment, the heights of the top of the support pile 1 or the anchor pile 2 in the arrangement unit are different above the water surface, so as to form the high-low arrangement of the two-way cable net structure 5. Therefore, the non-prestressed component cable 51 is arranged towards the north-south direction, and the two ends thereof are arranged at different elevations in the longitudinal direction. The north cable support is high, and the south cable support is low. The height difference and the sag of the cable naturally form an inclined plane towards the south. When the photovoltaic component 6 is placed on the cable plane, the photovoltaic component 6 naturally forms an inclined plane towards the south, so as to improve the power generation of the photovoltaic component 6.

[0053] The photovoltaic component 6 is arranged on the higher plane on the north side of the cable net structure 5. The lower plane on the south side is not arranged with the photovoltaic component 6, so as to avoid the photovoltaic component 6 from being blocked and unable to play the corresponding power generation effect.

[0054] Meanwhile, the non-prestressed component cable 51 bears the main load and is a load-bearing cable. Because the non-prestressed component cable 51 is a cable structure with no prestress and large sag, the sag of the non-prestressed component cable 51 is set between 1 / 8 and 1 / 12. In this way, the angle between the non-prestressed component cable 51 and the horizontal plane is basically near the optimal illumination angle of the photovoltaic module 6. This not only increases the power generation of the photovoltaic module 6, but also greatly reduces the tension of the cable and facilitates the installation of the cable structure.

[0055] Among them, since the non-prestressed component cable 51 has a large span and large sag, its lateral stiffness is small and its deformation is large, so a prestressed stabilizing cable 52 is set in the transverse direction. Since the prestressed stabilizing cable 52 is a cable structure with prestress, by fixing the two ends of the prestressed stabilizing cable 52 to the longitudinal truss beam 41, the transverse prestressed stabilizing cable 52 can improve the stability of the entire cable net structure 5 and avoid deformation of the cable net structure 5 under wind load.

[0056] like Figures 4-7 As shown, specifically, the support pile 1 includes a steel pipe pile 11. The steel pipe pile 11 has a variable diameter pile section 112 near the mud surface. The top and bottom of the variable diameter pile section 112 are respectively provided with a first pile section 111 and a second pile section 113. The pile diameter of the first pile section 111 is the same as the pile diameter of the top of the variable diameter pile section 112, and the pile diameter of the second pile section 113 is the same as the pile diameter of the bottom of the variable diameter pile section 112. At the same time, the pile diameter of the first pile section 111 is smaller than the pile diameter of the second pile section 113.

[0057] It should be noted that the steel pipe pile 11 is subjected to wave force and ice pressure near the water surface, and the magnitude of wave force and ice pressure is proportional to the pile diameter. Therefore, thick-walled reinforcement technology is adopted for the pile body near the water surface. Furthermore, since the bending moment is small above the water surface, the first pile segment 111 with a small diameter and thick wall steel pipe is adopted accordingly. Through this pile body structure, the effects of wave force and ice pressure are reduced while satisfying the structural strength requirements, and the bending moment of the pile body is also reduced.

[0058] Furthermore, calculations of the pile internal forces using the pile-soil combined action method revealed that the maximum bending moment occurs approximately three times the pile diameter below the mud surface. Increasing the pile diameter is more effective than increasing the wall thickness in resisting bending. Therefore, a large-diameter, thick-walled reinforcement technique was employed below the mud surface, specifically by installing a second pile segment 113 to increase the pile's outer diameter. The pile diameter near the mud surface is approximately 1.5-2.0 times that near the water surface. This pile structure effectively resists the maximum bending moment.

[0059] Meanwhile, the soil near the mud surface is often soft and has low horizontal bearing capacity, which leads to excessive horizontal deformation of the steel pipe pile 11. Therefore, a large-diameter and thick-wall strengthening technique is used near the mud surface, i.e., a conical variable-diameter pile section 112 is arranged near the mud surface, the outer diameter of the pile is increased, and the horizontal pressure of the pile on the soil and the horizontal deformation of the pile are effectively reduced.

[0060] The bottom of the second pile section 113 is provided with a third pile section 114, the pile wall thickness of the third pile section 114 is less than that of the second pile section 113, and the third pile section 114 is internally provided with a hollow pipe 12, and the outer wall of the hollow pipe 12 and the inner wall of the third pile section 114 are connected and provided with a pile rib plate 13.

[0061] It should be noted that, because the steel pipe pile 11 has an open bottom, when the pile is not deeply embedded in the soil, the occlusion ability is poor, and the vertical bearing capacity is poor. Therefore, a small-diameter hollow pipe 12 connected with the third pile section 114 is arranged at the bottom of the pile, which reduces the diameter of the soil column at the bottom of the pile, forms a soil plug at the bottom end of the pile, and improves the vertical bearing capacity of the pile.

[0062] As shown in Figures 8-14 , specifically, the pile top of the support pile 1 and the anchor pile 2 is provided with a support 3, the support 3 includes a support pile support 31 arranged at the pile top of the support pile 1, an anchor pile support 32 arranged at the pile top of the anchor pile 2, and a truss support 33 arranged at the top of the vertical truss 42, and the bottom of the vertical truss 42 is connected with the pile top of the support pile support 31; the top of the support pile support 31, the anchor pile support 32 and the truss support 33 is provided with a connecting plane, and the end of the truss beam 41 is provided with a fixed part on the connecting plane, and the fixed part is a welded steel plate connected with the top chord 411 of the truss beam 41.

[0063] As shown in Figure 3 , the end of the truss beam 41 in the low-position part of the arrangement unit is connected to the anchor pile support 32 or the support pile support 31 in the high-position part of the adjacent arrangement unit, so that the adjacent arrangement units are continuously connected in the longitudinal direction.

[0064] As shown in Figures 8-11As shown, the support pile support 31 includes an upper hole square steel plate 312 and a lower hole ring steel plate 315, the first connecting steel plate 311 is welded in the top surface of the upper hole square steel plate 312, and the upper hole square steel plate 312 and the lower hole ring steel plate 315 are welded in the vertical direction to set the first annular cylinder plate 313; The first single-ear hanging plate 314 welded with the upper hole square steel plate 312 is arranged on the side wall of the first annular cylinder plate 313, and the first single-ear hanging plate 314 can be connected with the fixed cable 8. The pile top of the steel pipe pile 11 is provided with a pile end plate 115, and the pile end plate 115 is connected with the lower hole ring steel plate 315 through the second connecting bolt 316. At the same time, the bottom of the vertical truss 42 is provided with a vertical truss connecting steel plate 317, and the vertical truss connecting steel plate 317 is connected and fixed with the first connecting steel plate 311 by welding.

[0065] As shown in Figure 12 The anchor pile 2 is two inclined pipe piles, and the anchor pile end plate 22 is arranged at the top of the anchor pile body 21. The anchor pile support 32 connects the two inclined pipe piles at the same time, and the anchor pile support 32 includes the pile foundation connecting round steel plate 321 arranged on the anchor pile end plate 22, and the two are connected by the third connecting bolt 322. The top of the pile foundation connecting round steel plate 321 is provided with a cut angle steel pipe 323, and the cut angle steel pipes 323 on the two sides are sequentially connected with the round steel plate 324 and the support rib plate 325 from bottom to top. The cut angle steel pipes 323 on the two sides are simultaneously welded with the second connecting steel plate 326 on the top of the support rib plate 325. And the top surface of the second connecting steel plate 326 is provided with a connecting lug 327, which is connected with the fixed cable 8.

[0066] As shown in Figures 13-14 The truss support 33 is similar to the support pile support 31, and the truss support 33 includes a lower hole connecting steel plate 331 and an upper hole connecting steel plate 334, and the second annular cylinder plate 332 is welded between the two in the vertical direction. The second single-ear hanging plate welded with the upper hole connecting steel plate 334 is arranged on the side wall of the second annular cylinder plate 332, and the second single-ear hanging plate can be connected with the fixed cable 8. The upper hole connecting steel plate 334 is connected and fixed with the vertical truss 42 by welding.

[0067] As shown in Figures 8-15As shown, specifically, the truss beam 41 includes upper chords 411, lower chords 412, first inclined web members 413 and first horizontal web members 414, the first inclined web members 413 are installed between the upper chords 411 and the lower chords 412 by welding connection, the first horizontal web members 414 are installed between two upper chords 411 by welding connection; meanwhile the truss beam 41 is welded and fixed with each part to be connected through two upper chords 411. The vertical truss 42 includes chords 421, second inclined web members 422 and second horizontal web members 423, the second inclined web members 422 and the second horizontal web members 423 are installed on the chords 421 around by welding; the vertical truss 42 is welded and fixed with each part to be connected through four chords 421.

[0068] As shown in the drawings, Figures 19-20 As shown, specifically, a cable truss connecting structure 71 is arranged between the cable net structure 5 and the truss beam 41, the cable truss connecting structure 71 is provided with a first connecting part and a second connecting part on the upper chords 411 on both sides of the truss beam 41, so that the non-prestressed component cable 51 or the prestressed stabilizing cable 52 is vertically arranged with the truss beam 41 through the first connecting part and the second connecting part; the first connecting part includes a first connecting plate 712 connected with the upper chord 411, the first connecting plate 712 is provided with a first connecting hole through which the cable net structure 5 passes, a wedge-shaped gasket 713 matched with the cable net structure 5 is arranged in the first connecting hole, and a connecting rib plate 711 is welded between the first connecting plate 712 and the upper chord 411 on this side; the second connecting part includes a second connecting plate 715 connected with the upper chord 411, the second connecting plate 715 is provided with a buckle 716 and a positioning rod member 714 matched therewith on both sides in the direction of the cable net structure 5. Among them, the connecting plate is a steel plate, and the wedge-shaped gasket 713 is also made of steel.

[0069] Among them, the non-prestressed component cable 51 and the prestressed stabilizing cable 52 pass through the connecting rib plate 711 and the two positioning rod members 714, so that the cable structure is fixed on the first connecting plate 712 and the positioning steel plate 715 through the wedge-shaped gasket 713 and the U-shaped buckle 716 respectively.

[0070] As shown in the drawings, Figures 19-20 As shown, specifically, a cross-shaped two-way cable buckle 72 is arranged at the cross intersection of the non-prestressed component cable 51 and the prestressed stabilizing cable 52, the cross-shaped two-way cable buckle 72 includes a cover plate 721, the cover plate 721 is provided with two upper and lower cover plates, and the two cover plates 721 have a partition between them, the upper and lower cover plates 721 are connected with each other by a fourth connecting bolt 722, and the inner wall of the cover plate 721 is provided with a groove matched with the non-prestressed component cable 51 or the prestressed stabilizing cable 52.

[0071] As shown in the drawings, Figures 21-22As shown, specifically, the block-cable connecting structure sets an end connecting structure 73 at the edge area of the cable plane to enable the photovoltaic module 6 at the edge position of the cable plane to be connected and fixed with the prestressed stabilizing cable 52. The end connecting structure 73 sets a third connecting plate 733 at the bottom of the photovoltaic module 6, and the third connecting plate 733 is provided with a first U-shaped bolt 731 and a first U-shaped pad 732 which are cooperated with the prestressed stabilizing cable 52. The recess of the first U-shaped bolt 731 is arranged opposite to one side of the third connecting plate 733, and the recess of the first U-shaped pad 732 is arranged opposite to the other side of the third connecting plate 733. The connecting plate is a steel plate.

[0072] As shown, Figures 23-25 As shown, specifically, the block-cable connecting structure sets a middle connecting structure 74 at the inner area of the cable plane, and the middle connecting structure 74 simultaneously connects the adjacent photovoltaic modules 6 in the longitudinal direction, so that the photovoltaic modules 6 in the cable plane are integrated through the middle connecting structure 74, the stability in the cable plane is improved, and the collision between the adjacent photovoltaic modules 6 is avoided. The middle connecting structure 74 sets a fourth connecting plate 741 at the bottom of the photovoltaic module 6, and the adjacent photovoltaic modules 6 are connected with the fourth connecting plate 741 through a first connecting bolt 742. The fourth connecting plate 741 is provided with a second U-shaped bolt 744 and a second U-shaped pad 743 which are cooperated with the prestressed stabilizing cable 52. The recess of the second U-shaped bolt 744 is arranged opposite to one side of the fourth connecting plate 741, and the recess of the second U-shaped pad 743 is arranged opposite to the other side of the fourth connecting plate 741. The connecting plate is also a steel plate.

[0073] As shown, Figures 26-27 As shown, the temporary construction structure is not used with the photovoltaic module, and the modular installation cannot be used. All the components need to be installed on site, the on-site installation workload is large, and the positioning accuracy of the cable is high. Therefore, the temporary construction structure can facilitate the rapid installation of the photovoltaic module 6.

[0074] Specifically, the temporary construction structure 9 is arranged on the cable net structure 5, and the two ends of the temporary construction structure 9 are hung on the adjacent prestressed stabilizing cables 52, and a third U-shaped bolt 94 is arranged between the two ends. A V-shaped flared locking groove 96 is arranged below the end of the temporary construction structure 9, and a walkway plate is arranged in the middle part of the temporary construction structure 9.

[0075] The temporary construction structure 9 includes a slotted walkway plate frame 91, and two connecting angle steels 93 are connected between the two sides of the slotted walkway plate frame 91, so that a steel grating 92 can be laid on the two connecting angle steels 93. In order to enable the two sides of the slotted walkway plate frame 91 to be connected with the prestressed stabilizing cable 52, a steel pad plate 95 which is in the same direction as the prestressed stabilizing cable 52 is arranged at the top of the slotted walkway plate frame 91, and the third U-shaped bolt 94 is arranged on the steel pad plate 95 to be connected with the prestressed stabilizing cable 52.

[0076] Referring to Figures 1-27 When the offshore photovoltaic supporting system is installed, the specific steps are as follows:

[0077] S1: According to the design drawing requirements, the shore prefabrication of the support pile 1, anchor pile 2, support 3, truss structure 4, connecting structure 7 and temporary construction structure 9 is completed;

[0078] S2: According to the positioning provided by the design, the pile sinking work of the support pile 1 and anchor pile 2 is completed in the target sea area;

[0079] S3: The support pile support 31 is respectively installed on the top of the support pile 1, the anchor pile support 32 is installed on the top of the anchor pile 2, and then the vertical truss 42 is installed on the upper part of the support pile support 31 in the design high position part of the layout unit;

[0080] S4: The truss support 33 is installed on the upper part of the vertical truss 42, and then the truss beam 41 is installed on the upper part of the support pile support 31, anchor pile support 32 and truss support 33, so that the steel pipe pile 11 and the steel pipe pile 11 / anchor pile 2 are connected to form a layout unit;

[0081] S5: The anchor pile 2 outside the steel pipe pile 11 of the layout unit is connected with the steel pipe pile 11, and thus the fixing cable 8 is installed on the first single-ear hanging plate 314 of the support pile support 31 and the connecting hanging ear 327 of the anchor pile support 32;

[0082] S6: The non-prestressed component cable 51 and the prestressed stabilizing cable 52 are installed on the truss beam 41 through the cable frame connecting knot 71, and then the prestressed stabilizing cable 52 is prestressed through the cable frame connecting knot 71;

[0083] S7: Before the photovoltaic component 6 is installed, the temporary construction structure 9 is installed on the prestressed stabilizing cable 52, and then the workers can install the cross double-directional cable buckle 72 at the cross intersection of the non-prestressed component cable 51 and the prestressed stabilizing cable 52 through the temporary construction structure 9;

[0084] S8: The workers install the photovoltaic component 6 on the prestressed stabilizing cable 52 through the end connecting structure 73 and the middle connecting structure 74 on the temporary construction structure 9;

[0085] S9: The workers install the photovoltaic component 6 while removing the temporary construction structure 9, until the last piece of photovoltaic component 6 is installed, so as to install the photovoltaic component 6 in the remaining layout units until the installation of the offshore photovoltaic supporting system is completed.

[0086] The above embodiment is only a preferred technical solution of the present application, and those skilled in the art should understand that the technical solution or parameter in the embodiment can be modified or replaced without departing from the principles and essence of the present application, and all should be covered within the protection scope of the present application.

Claims

1. A marine photovoltaic support system with a bidirectional cable net structure arranged at varying heights, characterized in that: The arrangement includes support piles (1) and anchor piles (2). Within the enclosed area between support piles (1) or between anchor piles (2) and support piles (1) in the longitudinal direction, arrangement units are formed. A truss structure (4) and a cable net structure (5) are provided within each arrangement unit. The truss structure (4) connects truss beams (41) to the top of adjacent piles to enclose the arrangement unit. A vertical truss (42) can be provided on the top of the support piles (1) within the arrangement unit. The ends of the truss beams (41) are connected to the vertical... The top of the truss (42) is such that the height difference and sag of the ends of the cable net structure (5) in the longitudinal direction form an oblique cable plane; the cable net structure (5) is provided with non-prestressed component cables (51) and prestressed stabilizing cables (52) between adjacent truss beams (41) in the longitudinal and transverse directions, and photovoltaic modules (6) are laid in the divided intervals of the non-prestressed component cables (51) and prestressed stabilizing cables (52), and the photovoltaic modules (6) are connected in the longitudinal direction with block cable connection structures that cooperate with the prestressed stabilizing cables (52); The top of the support pile (1) and the anchor pile (2) are provided with a support (3). The support (3) includes a support pile support (31) provided on the top of the support pile (1), an anchor pile support (32) provided on the top of the anchor pile (2), and a truss support (33) provided on the top of the vertical truss (42). The bottom of the vertical truss (42) is connected to the top of the support pile support (31). The top of the support pile support (31), the anchor pile support (32) and the truss support (33) are all provided with a connecting plane. The end of the truss beam (41) is provided with a fixing part on the connecting plane. The ends of the truss beams (41) in the lower part of the arrangement unit are connected to the anchor pile supports (32) or to the support pile supports (31) in the upper part of the adjacent arrangement unit. A cable frame connection structure (71) is provided between the cable net structure (5) and the truss beam (41). The cable frame connection structure (71) has a first connection part and a second connection part respectively provided on the upper chord (411) on both sides of the truss beam (41). The first connection part and the second connection part are used to make the non-prestressed component cable (51) or the prestressed stabilizing cable (52) and the truss beam (41) arranged vertically. The first connecting part includes a first connecting plate (712) connected to the upper chord (411). The first connecting plate (712) has a first connecting hole through which the cable net structure (5) can pass. A wedge-shaped pad (713) that cooperates with the cable net structure (5) is provided in the first connecting hole. The second connecting part includes a second connecting plate (715) connected to the upper chord (411). The second connecting plate (715) is provided with buckles (716) and positioning rods (714) on both sides of the cable net structure (5) in the direction of the cable net structure (5).

2. The high-low arrangement bidirectional cable net structure marine photovoltaic support system according to claim 1, characterized in that: The support pile (1) includes a steel pipe pile (11). The steel pipe pile (11) has a variable diameter pile section (112) on the pile body near the mud surface. The top and bottom of the variable diameter pile section (112) are respectively provided with a first pile section (111) and a second pile section (113) with the same pile diameter. Meanwhile, the pile diameter of the first pile section (111) is smaller than the pile diameter of the second pile section (113).

3. The high-low arrangement bidirectional cable net structure marine photovoltaic support system according to claim 2, characterized in that: A third pile segment (114) is provided at the bottom of the second pile segment (113). The wall thickness of the third pile segment (114) is less than that of the second pile segment (113). A hollow tube (12) is provided inside the third pile segment (114). A pile rib plate (13) is connected between the outer wall of the hollow tube (12) and the inner wall of the third pile segment (114).

4. The marine photovoltaic support system with a bidirectional cable net structure arranged at varying heights according to claim 1, characterized in that: A cross-shaped bidirectional cable buckle (72) is provided at the intersection of the non-prestressed component cable (51) and the prestressed stabilizing cable (52). The cross-shaped bidirectional cable buckle (72) includes upper and lower separated cover plates (721), which are connected to each other. The inner wall of the cover plate (721) is provided with a groove that cooperates with the non-prestressed component cable (51) or the prestressed stabilizing cable (52).

5. The high-low arrangement bidirectional cable net structure marine photovoltaic support system according to claim 1, characterized in that: The block cable connection structure has an end connection structure (73) set in the edge area of ​​the cable plane. The end connection structure (73) has a third connection plate (733) set at the bottom of the photovoltaic module (6). The third connection plate (733) is provided with a first U-bolt (731) and a first U-shaped pad (732) that cooperate with the prestressed stabilizing cable (52). The notch of the first U-bolt (731) is set on the side opposite to the third connection plate (733), and the notch of the first U-shaped pad (732) is set on the other side opposite to the third connection plate (733).

6. The marine photovoltaic support system with a bidirectional cable net structure arranged at varying heights according to claim 1, characterized in that: The block cable connection structure has a central connection structure (74) in the inner area of ​​the cable plane. The central connection structure (74) has a fourth connection plate (741) at the bottom of the photovoltaic module (6). Adjacent photovoltaic modules (6) are connected to the fourth connection plate (741) by a first connection bolt (742). The fourth connection plate (741) is provided with a second U-bolt (744) and a second U-shaped pad (743) that cooperate with the prestressed stabilizing cable (52). The notch of the second U-bolt (744) is set on the side opposite to the fourth connection plate (741), and the notch of the second U-shaped pad (743) is set on the other side opposite to the fourth connection plate (741).

7. The marine photovoltaic support system with a bidirectional cable net structure arranged at varying heights according to claim 1, characterized in that: The sag of the prestressed component cable (51) is set between 1 / 8 and 1 / 12.

8. The high-low arrangement bidirectional cable net structure marine photovoltaic support system according to claim 1, characterized in that: The cable net structure (5) is also provided with a temporary construction structure (9). Both ends of the temporary construction structure (9) are simultaneously hung on adjacent prestressed stabilizing cables (52), and a third U-bolt (94) is provided between them. A flared locking groove (96) is provided below the end of the temporary construction structure (9), and a walkway is provided in the middle part of the temporary construction structure (9).

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