Bidirectional cable net structure offshore photovoltaic supporting system arranged in high-low mode

Abstract

The invention provides a high-low-arranged offshore photovoltaic supporting system with a bidirectional cable net structure, which comprises bracket piles and anchor piles, and is characterized in that arrangement units are formed in a surrounding area between the bracket piles or between the anchor piles and the bracket piles in a partitioning manner in the longitudinal direction; truss structures and cable net structures are arranged in the arrangement units, the truss structures are connected with truss beams at the tops of adjacent pile bodies so as to surround the arrangement units, vertical trusses can be arranged at the tops of support pile bodies in the arrangement units, the ends of the truss beams are connected to the tops of the vertical trusses, and the cable net structures are connected to the tops of the cable net structures. And the height difference and the sag of the end part of the cable net structure in the longitudinal direction form an inclined cable plane. According to the invention, a high-low two-way cable net structure is adopted, the height difference and the sag of the cables are utilized to naturally form an inclined plane facing the south, and the photovoltaic modules are directly laid on the cable planes without arranging the photovoltaic module modules, so that the corresponding steel consumption is saved while the generating capacity of the photovoltaic modules is increased while the photovoltaic modules are inclined.

Description

Technical Field

[0001] The invention relates to the technical field of offshore photovoltaic power generation, and in particular to an offshore photovoltaic support system with a high-low arranged bidirectional cable net structure. Background Art

[0002] Most of the existing offshore photovoltaic structures that have been started or completed are fixed photovoltaics, which use a large amount of piles and steel. In addition, compared with onshore photovoltaic structures, offshore photovoltaic structures need to bear wave and current loads in addition to wind loads, and the cost of a single pile is relatively high. For this reason, flexible photovoltaic brackets can be used. However, when flexible photovoltaic brackets are used in the construction of offshore photovoltaic projects, the following problems still need to be solved:

[0003] (1) The traditional flat-laid offshore cable-suspended photovoltaic support structure has its components placed horizontally, which is not conducive to the lighting of the components and results in a partial loss of power generation. The traditional inclined offshore cable-suspended photovoltaic support structure utilizes the tilt of the photovoltaic module modules. Although it achieves the southward tilt of the photovoltaic modules, it brings about the problem of greater module stress and more complex steel structure, resulting in an increase in the amount of steel used in the modules.

[0004] (2) The traditional offshore cable-suspended photovoltaic support structure needs to be laid flat or reduce the lateral deformation of the cable, so the cable has a small sag and a large tension, which causes the corresponding beams and anchoring structures to have a large tension and a large amount of engineering work.

[0005] (3) Traditional offshore cable-suspended photovoltaic support structures often use photovoltaic module modules for installation, so photovoltaic module modules are made of steel structures, which consume a large amount of steel. It is necessary to save the steel consumption of the modules as much as possible.

[0006] Based on the above problems, how to increase the power generation of offshore photovoltaics, ensure the stability, reliability, durability and convenience of offshore photovoltaic modules, is an urgent problem that needs to be solved. Summary of the invention

[0007] The purpose of the present invention is to provide an offshore photovoltaic support system that can improve the power generation of photovoltaic modules while ensuring the stability of the cable net structure. To this end, the present invention adopts the following technical solutions:

[0008] An offshore photovoltaic support system with a bidirectional cable net structure arranged in high and low directions comprises support piles and anchor piles, wherein the enclosed area between the support piles and the support piles or between the anchor piles and the support piles in the longitudinal direction is divided into arrangement units; a truss structure and a cable net structure are arranged in the arrangement unit, wherein the truss structure is connected to the truss beams at the tops of adjacent pile bodies to enclose the arrangement unit, and a vertical truss can be arranged at the tops of the support piles in the arrangement unit, and the ends of the truss beams are connected to the tops of the vertical trusses so that the height difference and verticality of the ends of the cable net structure in the longitudinal direction form an inclined cable plane; the cable net structure is respectively provided with non-prestressed component cables and prestressed stabilizing cables between adjacent truss beams in the longitudinal and transverse directions, photovoltaic components are laid in the divided intervals of the non-prestressed component cables and the prestressed stabilizing cables, and the photovoltaic components are connected to a block cable connection structure cooperating with the prestressed stabilizing cables in the longitudinal direction.

[0009] Furthermore: the support pile includes a steel pipe pile, and the steel pipe pile is provided with a variable diameter pile section at the pile body near the mud surface, and 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 pile diameter as the pile section, and at the same time, the pile diameter of the first pile section is smaller than the pile diameter of the second pile section.

[0010] Furthermore: a third pile segment is arranged at the bottom of the second pile segment, the pile wall thickness of the third pile segment is smaller than the pile wall thickness of the second pile segment, a hollow tube is arranged inside the third pile segment, and a pile rib plate is connected between the outer wall of the hollow tube and the inner wall of the third pile segment.

[0011] Furthermore: supports are arranged at the tops of the support piles and anchor piles, and the supports include support pile supports arranged at the tops of the support piles, anchor pile supports arranged at the tops of the anchor piles, and truss supports arranged at the tops of the vertical trusses, and the bottoms of the vertical trusses are connected to the tops of the support pile supports; connection planes are arranged at the tops of the support pile supports, anchor pile supports, and truss supports, and fixing portions are arranged at the ends of the truss beams on the connection planes; the ends of the truss beams at the low positions in the arrangement units are connected to the anchor pile supports, or are connected to the support pile supports at the high positions in the adjacent arrangement units.

[0012] Furthermore: a cable rack connecting structure is arranged between the cable net structure and the truss beam, and the cable rack connecting structure is respectively provided with a first connecting part and a second connecting part on the upper chord rods on both sides of the truss beam, and the first connecting part and the second connecting part are used to enable the non-prestressed component cable or the prestressed stabilizing cable to form a vertical arrangement with the truss beam; the first connecting part includes a first connecting plate connected to the upper chord rod, and a first connecting hole is opened in the first connecting plate for the cable net structure to pass through, and a wedge-shaped pad matching the cable net structure is arranged in the first connecting hole; the second connecting part includes a second connecting plate connected to the upper chord rod, and the second connecting plate is respectively provided with buckles and positioning rods matching with it on both sides of the direction of the cable net structure.

[0013] Furthermore: a cross bidirectional cable buckle is arranged at the intersection of the non-prestressed component cable and the prestressed stabilizing cable, and the cross bidirectional cable buckle includes a cover plate separated into upper and lower parts, the upper and lower cover plates are connected to each other, and the inner wall of the cover plate is provided with a groove cooperating with the non-prestressed component cable or the prestressed stabilizing cable.

[0014] Furthermore: the block-cable connection structure is provided with an end connection structure in the edge area of ​​the cable plane, and the end connection structure is provided with a third connecting plate at the bottom of the photovoltaic component, and the third connecting plate is provided with a first U-shaped bolt and a first U-shaped pad that cooperate with the prestressed stabilizing cable, the recess of the first U-shaped bolt is provided relative to the side of the third connecting plate, and the recess of the first U-shaped pad is provided relative to the other side of the third connecting plate.

[0015] Furthermore: the sag of the prestressed component cable is set between 1 / 8-1 / 12.

[0016] Furthermore: the block-cable connection structure is provided with a middle connection structure in the inner area of ​​the cable plane, and the middle connection structure is provided with a fourth connection plate at the bottom of the photovoltaic component, and adjacent photovoltaic components are connected to the fourth connection plate through a first connection bolt; the fourth connection plate is provided with a second U-shaped bolt and a second U-shaped pad that cooperate with the prestressed stabilizing cable, the recess of the second U-shaped bolt is arranged relative to the side of the fourth connection plate, and the recess of the second U-shaped pad is arranged relative to the other side of the fourth connection plate.

[0017] Furthermore: a temporary construction structure is also arranged on the cable net structure, both ends of the temporary construction knot are simultaneously hung on adjacent prestressed stabilizing cables, and a third U-shaped bolt is arranged in connection between the two, an expanded locking groove is arranged below the end of the temporary construction structure, and a walkway plate is arranged in the middle part of the temporary construction structure.

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

[0019] The present invention adopts a bidirectional cable net structure with a high-low arrangement, and utilizes the height difference and verticality of the cable to naturally form a south-facing slope. The photovoltaic components are directly laid flat on the cable plane without arranging photovoltaic component modules, thereby saving the corresponding amount of steel while increasing the power generation of the photovoltaic components by tilting; and, since the component cables have a large span and a large verticality, their lateral stiffness is small and the deformation is large, therefore, stabilizing cables are arranged transversely, and the stabilizing cables are prestressed cables, and both ends of the stabilizing cables are fixed on the longitudinal side beams. The transverse stabilizing cables improve the stability of the entire cable net structure and avoid deformation of the cable net structure under wind loads. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2It is a plan view of the overall structure of the offshore photovoltaic support system of the present invention;

[0022] Figure 3 is an elevation view of the longitudinal side beam of the present invention;

[0023] Figure 4 is a cross-sectional view of a variable diameter steel pipe pile of the present invention;

[0024] Figure 5 It is a schematic diagram of the mud surface of the steel pipe pile of the present invention;

[0025] Figure 6 It is an elevation view of the end of the steel pipe pile of the present invention;

[0026] Figure 7 It is a plan view of the pile end of the steel pipe pile of the present invention;

[0027] Figure 8 It is an elevation view of the support pile support of the present invention;

[0028] Fig. 9 It is a plan view of the support pile support of the present invention;

[0029] Fig.10 It is an elevation view of the connection node between the support pile support and the vertical truss of the present invention;

[0030] Fig.11 It is a plan view of the connection node between the support pile support and the vertical truss of the present invention;

[0031] Fig.12 is a schematic diagram of an anchor pile support of the present invention;

[0032] Fig.13 It is an elevation view of the connection node between the truss support and the vertical truss of the present invention;

[0033] Fig.14 is a plan view of a truss support of the present invention;

[0034] Fig.15 It is a schematic diagram of the cable rack connection structure of the present invention;

[0035] Fig.16 It is a first-view elevation view of the cable rack connection structure of the present invention;

[0036] Fig.17 A second perspective elevation view of the cable rack connection structure of the present invention;

[0037] Fig.18 It is a plan view of the cable rack connection structure of the present invention;

[0038] Fig.19 It is a plan view of the cross bidirectional buckle of the present invention;

[0039] Fig. 20It is an elevation view of the cross bidirectional cable buckle of the present invention;

[0040] Fig.21 It is a plan view of the middle connection structure of the present invention;

[0041] Fig. 22 It is an elevation view of the middle connection structure of the present invention;

[0042] Fig.23 It is a structural plan view of the end connection structure of the present invention;

[0043] Fig.24 is an elevation view of the end connection structure of the present invention;

[0044] Fig.25 A plan view of the photovoltaic module installation of the present invention;

[0045] Fig.26 It is an elevation view of a temporary construction structure during the construction period of the present invention;

[0046] Fig. 27 It is a plan view of the temporary construction structure during the construction period of the present invention.

[0047] The marks in the attached drawings are: 1-support pile, 11-steel pipe pile, 111-first pile section, 112-variable 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 square steel plate with holes, 313-first annular cylinder plate, 314-first single-ear hanging plate, 315-lower ring steel plate with holes, 316- The 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-angle steel pipe, 324-round steel plate, 325-support rib plate, 326-second connecting steel plate, 327-connecting ear, 33-truss support, 331-lower hole connecting steel plate, 332-second annular cylinder plate, 333-second single ear hanging plate, 334-upper hole connecting steel plate, 4-truss structure, 41-truss beam, 411-upper chord, 412-lower chord, 413-first diagonal web, 414-first horizontal web, 42-vertical truss, 421-chord, 422-second diagonal web, 423-second horizontal web, 5-cable net structure, 51-non-prestressed component cable, 52-prestressed stabilizing cable, 6-photovoltaic module, 71-cable rack connection structure, 711-connecting ribs, 712-first connecting plate, 713-wedge pad, 714-positioning rod, 715-second connecting plate, 716-clip, 72-cross bidirectional cable buckle, 72 1-cover plate, 722-fourth connecting bolt, 73-end connecting structure, 731-first U-shaped bolt, 732-first U-shaped pad, 733-third connecting plate, 74-middle connecting structure, 741-fourth connecting plate, 742-first connecting bolt, 743-second U-shaped pad, 744-second U-shaped bolt, 8-fixing cable, 9-temporary construction structure, 91-grooved walkway frame, 92-steel grille, 93-connecting angle steel, 94-third U-shaped bolt, 95-steel pad, 96-expanded lock groove. DETAILED DESCRIPTION

[0048] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0049] This embodiment provides an offshore photovoltaic power plant, in which the normal water level depth of the photovoltaic power station area is 0.52m, the mud surface elevation is -6m to -4m, the maximum wave height once in 50 years is 10m, and the H1% wave height once in 50 years is 4.5m.

[0050] like Figure 1-27As shown, a high-low arranged bidirectional cable net structure offshore photovoltaic support system includes support piles 1 and anchor piles 2, and the enclosed area between the support piles 1 and the support piles 1 or between the anchor piles 2 and the support piles 1 in the longitudinal direction is divided into layout units; a truss structure 4 and a cable net structure 5 are arranged in the layout unit, and the truss structure 4 is connected to the truss beam 41 at the top of the adjacent pile body to form an enclosure for the layout unit, and a vertical truss 42 can be arranged on the top of the support pile 1 in the layout unit, and the end of the truss beam 41 is connected to the top of the vertical truss 42, so that the height difference and verticality of the end of the cable net structure 5 in the longitudinal direction form an inclined cable plane; the cable net structure 5 is respectively provided with non-prestressed component cables 51 and prestressed stabilizing cables 52 between the adjacent truss beams 41 in the longitudinal and transverse directions, and photovoltaic components 6 are laid in the divided intervals of the non-prestressed component cables 51 and the prestressed stabilizing cables 52, and the photovoltaic components 6 are connected to the block cable connection structure matched with the prestressed stabilizing cables 52 in the longitudinal direction.

[0051] like Figure 2 As shown, most of the supporting foundations for the truss structure 4 in the arrangement unit are support piles 1, but the starting part in the arrangement unit at the starting end of the overall offshore photovoltaic support system can connect the support piles 1 and the anchor piles 2 together through the truss beam 41, and the anchor piles 2 at this position can be arranged with the cable net structure 5 through the truss structure 4 in combination with the support piles 1. At the same time, the anchor piles 2 that play a connecting role are arranged outside the support piles 1 of the arrangement unit, and the anchor piles 2 in the peripheral area are connected to the top of the support piles 1 in the arrangement unit through the fixing cable 8.

[0052] like Figure 1-3 As shown, in this embodiment, the tops of the support piles 1 or anchor piles 2 in the units are arranged at different heights above the water surface, so as to form a high-low arrangement for the bidirectional cable net structure 5. Therefore, the non-prestressed component cable 51 is oriented in the north-south direction, and the two ends are arranged at different elevations in the longitudinal direction, with the cable support on the north side being high and the cable support on the south side being low. A south-facing inclined surface is naturally formed by utilizing the height difference and verticality of the cable, so that when the photovoltaic module 6 is placed flat on the cable plane, the photovoltaic module 6 can naturally form a south-facing inclined surface, thereby increasing the power generation of the photovoltaic module 6.

[0053] The photovoltaic components 6 are arranged on the higher surface on the north side of the cable net structure 5. Since the lower surface on the south side will block the photovoltaic components 6, the photovoltaic components 6 are not arranged to avoid being blocked and unable to exert the corresponding power generation effect.

[0054] At the same time, the non-prestressed component cable 51 bears the main load and is a load-bearing cable. Since the non-prestressed component cable 51 is a cable structure with non-prestress and large sag, the sag of the non-prestressed component cable 51 is set between 1 / 8-1 / 12, so that the angle between the non-prestressed component cable 51 and the horizontal plane is basically near the optimal illumination angle of the photovoltaic component 6. This greatly reduces the tension of the cable while increasing the power generation of the photovoltaic component 6, and also facilitates the installation of the cable structure.

[0055] Among them, since the non-prestressed component cable 51 has a large span and a large sag, its lateral stiffness is small and the deformation is large, so a prestressed stabilizing cable 52 is arranged laterally. The prestressed stabilizing cable 52 is a cable structure with prestress. By fixing the two ends of the prestressed stabilizing cable 52 on 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 Figure 4-7 As shown, specifically, the support pile 1 includes a steel pipe pile 11, and a variable-diameter pile section 112 is arranged on the pile body of the steel pipe pile 11 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 at 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 at 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 the effects of wave force and ice pressure near the water surface, and the magnitude of the wave force and ice pressure is proportional to the pile diameter. Therefore, thick-wall reinforcement technology is adopted for the pile body near the water surface, and above the water surface, since the bending moment is small, a first pile section 111 of a small diameter and thick-walled steel pipe is correspondingly adopted. This pile body structure reduces the effects of wave force and ice pressure while meeting the structural strength requirement, and at the same time reduces the bending moment of the pile body.

[0058] Moreover, according to the method of pile-soil combined action, the internal force of the pile body is calculated, and it is found that the maximum bending moment of the whole pile is at a depth of about 3 times the pile diameter below the mud surface, and the effect of increasing the diameter to resist bending is better than the effect of increasing the wall thickness to resist bending. Therefore, a large diameter and thick wall reinforcement technology is adopted under the mud surface, that is, a second pile section 113 is set to increase the outer diameter of the pile body, and the pile diameter near the mud surface is about 1.5-2.0 times the pile diameter near the water surface. This pile body structure can effectively resist the maximum bending moment.

[0059] At the same time, because the soil near the mud surface is often soft and has low horizontal bearing capacity, the horizontal deformation of the steel pipe pile 11 is too large. A large-diameter, thick-wall reinforcement technology is used near the mud surface, that is, a conical variable-diameter pile section 112 with a small top and a large bottom is set near the mud surface. By increasing the outer diameter of the pile body, the horizontal pressure of the pile on the soil and the horizontal deformation of the pile are effectively reduced.

[0060] A third pile segment 114 is arranged at the bottom of the second pile segment 113 , the pile wall thickness of the third pile segment 114 is smaller than the pile wall thickness of the second pile segment 113 , a hollow tube 12 is arranged inside the third pile segment 114 , and 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 .

[0061] It should be noted that since the bottom of the steel pipe pile 11 is open, when the pile is not deeply buried in the ground, the closing ability is poor and the vertical bearing performance is poor. Therefore, a small diameter hollow pipe 12 connected to the third pile segment 114 is arranged at the bottom of the pile. In this way, the diameter of the soil column at the bottom of the pile is reduced, and a soil plug can be formed at the bottom of the pile, thereby improving the vertical bearing capacity of the pile.

[0062] like Figure 8-14 As shown, specifically, supports 3 are arranged at the tops of the support piles 1 and the anchor piles 2, and the supports 3 include a support pile support 31 arranged at the top of the support pile 1, an anchor pile support 32 arranged at the 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 to the top of the support pile support 31; the tops of the support pile support 31, the anchor pile support 32 and the truss support 33 are all provided with connecting planes, and the end of the truss beam 41 is provided with a fixing portion on the connecting plane, and the fixing portion is a welded steel plate connected to the upper chord 411 of the truss beam 41.

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

[0064] like Figure 8-11As shown, the support pile support 31 includes an upper perforated square steel plate 312 and a lower perforated ring steel plate 315, a first connecting steel plate 311 is welded and arranged in the top surface of the upper perforated square steel plate 312, and a first annular cylinder plate 313 is welded and arranged between the upper perforated square steel plate 312 and the lower perforated ring steel plate 315 in the vertical direction; a first single-ear hanging plate 314 welded together with the upper perforated 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 to the fixing rope 8. A pile end plate 115 is arranged on the pile top of the steel pipe pile 11, and the pile end plate 115 is connected to the lower perforated ring steel plate 315 by a second connecting bolt 316. At the same time, a vertical truss connecting steel plate 317 is arranged at the bottom of the vertical truss 42, and the vertical truss connecting steel plate 317 is connected and fixed to the first connecting steel plate 311 by welding.

[0065] like Fig.12 As shown, the anchor pile 2 is two inclined pipe piles, and an anchor pile end plate 22 is arranged on the pile top of the anchor pile body 21. The anchor pile support 32 connects the inclined pipe piles on both sides at the same time. The anchor pile support 32 includes a pile foundation connection circular steel plate 321 arranged on the anchor pile end plate 22, and the two are connected by a third connection bolt 322. An angled steel pipe 323 is arranged on the top of the pile foundation connection circular steel plate 321. A circular steel plate 324 and a support rib plate 325 are sequentially connected between the angled steel pipes 323 on both sides from bottom to top. The angled steel pipes 323 on both sides and the top of the support rib plate 325 are welded with a second connection steel plate 326 at the same time. A connection lug 327 is arranged in the middle of the top surface of the second connection steel plate 326, and the connection lug 327 is connected to the fixing cable 8.

[0066] like Figure 13-14 As shown, the truss support 33 is similar to the support pile support 31, and the truss support 33 includes a lower perforated connecting steel plate 331 and an upper perforated connecting steel plate 334, a second annular cylinder plate 332 is welded between the two in the vertical direction, and a second single-ear hanging plate welded together with the upper perforated 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 to the fixing cable 8. The upper perforated connecting steel plate 334 is fixed to the vertical truss 42 by welding.

[0067] like Figure 8-15As shown, specifically, the truss beam 41 includes an upper chord 411, a lower chord 412, a first diagonal web member 413 and a first horizontal web member 414. The first diagonal web member 413 is installed between the upper chord 411 and the lower chord 412 and connected by welding. The first horizontal web member 414 is installed between the two upper chords 411 and connected by welding. At the same time, the truss beam 41 is welded and fixed to each part to be connected through the two upper chords 411. The vertical truss 42 includes a chord 421, a second diagonal web member 422 and a second horizontal web member 423. The second diagonal web member 422 and the second horizontal web member 423 are welded and installed on the chord 421 around. The vertical truss 42 is welded and fixed to each part to be connected through four chords 421.

[0068] like Figure 19-20 As shown, specifically, a cable rack connection structure 71 is provided between the cable net structure 5 and the truss beam 41, and the cable rack connection structure 71 is provided with a first connection part and a second connection part on the upper chord rods 411 on both sides of the truss beam 41, respectively, and the non-prestressed component cable 51 or the prestressed stabilizing cable 52 is arranged vertically with the truss beam 41 through the first connection part and the second connection part; the first connection part includes a first connection plate 712 connected to the upper chord rod 411, a first connection hole for the cable net structure 5 to pass through is provided in the first connection plate 712, a wedge-shaped pad 713 matched with the cable net structure 5 is provided in the first connection hole, and a connecting rib plate 711 is welded between the first connection plate 712 and the upper chord rod 411 on the side; the second connection part includes a second connection plate 715 connected to the upper chord rod 411, and the second connection plate 715 is provided with a buckle 716 and a positioning rod 714 matched with it on both sides of the direction of the cable net structure 5. Among them, the connection plate is a steel plate, and the wedge-shaped pad 713 is also made of steel.

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

[0070] like Figure 19-20 As shown, specifically, a cross-bidirectional cable buckle 72 is arranged at the cross intersection of the non-prestressed component cable 51 and the prestressed stabilizing cable 52, and the cross-bidirectional cable buckle 72 includes a cover plate 721, and the cover plate 721 is arranged in two upper and lower pieces, and there is a partition between the two cover plates 721, and the upper and lower cover plates 721 are connected to each other by a fourth connecting bolt 722, and 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.

[0071] like Figure 21-22As shown, specifically, the block cable connection structure is provided with an end connection structure 73 at the edge area of ​​the cable plane, so that the photovoltaic module 6 at the edge position of the cable plane is connected and fixed with the prestressed stabilizing cable 52. The end connection structure 73 is provided with a third connection plate 733 at the bottom of the photovoltaic module 6, and the third connection plate 733 is provided with a first U-shaped bolt 731 and a first U-shaped pad 732 that cooperate with the prestressed stabilizing cable 52. The notch of the first U-shaped bolt 731 is provided on the side opposite to the third connection plate 733, and the notch of the first U-shaped pad 732 is provided on the other side opposite to the third connection plate 733. Wherein, the connection plate is a steel plate.

[0072] like Figure 23-25 As shown, specifically, the block cable connection structure is provided with a middle connection structure 74 in the inner area of ​​the cable plane, and the middle connection structure 74 simultaneously connects the adjacent photovoltaic modules 6 in the longitudinal direction, so that the photovoltaic modules 6 in the cable plane are connected as a whole through the middle connection structure 74, thereby improving the stability in the cable plane and avoiding collision of adjacent photovoltaic modules 6. The middle connection structure 74 is provided with a fourth connection plate 741 at the bottom of the photovoltaic module 6, and the adjacent photovoltaic modules 6 are connected to the fourth connection plate 741 through the first connection bolt 742; the fourth connection plate 741 is provided with a second U-shaped bolt 744 and a second U-shaped pad 743 that cooperate with the prestressed stabilizing cable 52, the notch of the second U-shaped bolt 744 is provided on the side opposite to the fourth connection plate 741, and the notch of the second U-shaped pad 743 is provided on the other side opposite to the fourth connection plate 741. Wherein, the connection plate is also a steel plate.

[0073] like Figure 26-27 As shown, this embodiment also provides a temporary construction structure. If the photovoltaic component module is not used, modular installation cannot be adopted. All 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 component 6.

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

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

[0076] See also Figure 1-27 When installing the offshore photovoltaic support system, the specific steps are as follows:

[0077] S1: Complete the onshore prefabrication of support piles 1, anchor piles 2, supports 3, truss structures 4, connection structures 7 and temporary construction structures 9 according to the design drawings;

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

[0079] S3: Install the support pile support 31 on the top of the support pile 1, install the anchor pile support 32 on the top of the anchor pile 2, and then install the vertical truss 42 on the upper part of the support pile support 31 at the designed high position of the layout unit;

[0080] S4: Install the truss support 33 on the upper part of the vertical truss 42, and then install the truss beam 41 on the upper part of the bracket pile support 31, the anchor pile support 32 and the truss support 33, so that the steel pipe pile 11 and the steel pipe pile 11 / anchor pile 2 are connected to form an arrangement unit;

[0081] S5: Connect the anchor pile 2 outside the steel pipe pile 11 of the arrangement unit to the steel pipe pile 11, thereby installing the fixing cable 8 on the first single-ear hanging plate 314 of the bracket pile support 31 and the connecting hanging ear 327 of the anchor pile support 32;

[0082] S6: installing the non-prestressed component cable 51 and the prestressed stabilizing cable 52 on the truss beam 41 through the cable rack connection knot 71, and then applying prestress to the prestressed stabilizing cable 52 through the cable rack connection knot 71;

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

[0084] S8: Workers install the photovoltaic module 6 on the prestressed stabilizing cable 52 through the end connection structure 73 and the middle connection structure 74 on the temporary construction structure 9;

[0085] S9: Workers install the photovoltaic modules 6 while dismantling the temporary construction structure 9 until the last photovoltaic module 6 is installed, and then install the photovoltaic modules 6 in the remaining arrangement units until the installation of the offshore photovoltaic support system is completed.

[0086] The above embodiment is only a preferred technical solution of the present invention. Those skilled in the art should understand that the technical solutions or parameters in the embodiments can be modified or replaced without departing from the principle and essence of the present invention, and all should be covered within the protection scope of the present invention.

Claims

1. A high-low bidirectional cable net structure offshore photovoltaic support system, characterized by: The invention comprises a support pile (1) and an anchor pile (2), wherein an enclosed area between the support piles (1) and the support piles (1) or between the anchor piles (2) and the support piles (1) in the longitudinal direction is divided into partitions to form an arrangement unit; a truss structure (4) and a cable net structure (5) are arranged in the arrangement unit, the truss structure (4) is connected to a truss beam (41) at the top of adjacent pile bodies to form an enclosure for the arrangement unit, a vertical truss (42) can be arranged at the top of the support pile (1) in the arrangement unit, and the end of the truss beam (41) is connected to the vertical truss beam (42). The top of the truss (42) is formed so that the height difference and verticality of the end of the cable net structure (5) in the longitudinal direction form an inclined 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, respectively; photovoltaic components (6) are laid in the divided intervals of the non-prestressed component cables (51) and the prestressed stabilizing cables (52); and the photovoltaic components (6) are connected to a block cable connection structure in the longitudinal direction that cooperates with the prestressed stabilizing cables (52).

2. The high-low arranged bidirectional cable net structure offshore photovoltaic support system according to claim 1, characterized in that: The support pile (1) comprises a steel pipe pile (11), wherein a variable diameter pile section (112) is arranged on the pile body of the steel pipe pile (11) near the mud surface, and a first pile section (111) and a second pile section (113) having the same pile diameter are arranged at the top and bottom of the variable diameter pile section (112), respectively, and 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 arranged bidirectional cable net structure offshore photovoltaic support system according to claim 2, characterized in that: A third pile segment (114) is arranged at the bottom of the second pile segment (113); the pile wall thickness of the third pile segment (114) is smaller than the pile wall thickness of the second pile segment (113); a hollow tube (12) is arranged 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 high-low arranged bidirectional cable net structure offshore photovoltaic support system according to claim 1, characterized in that: Supports (3) are arranged at the tops of the support piles (1) and the anchor piles (2), and the supports (3) include a support pile support (31) arranged at the top of the support pile (1), an anchor pile support (32) arranged at the 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 to the top of the support pile support (31); the tops of the support pile support (31), the anchor pile support (32) and the truss support (33) are all provided with connection planes, and the ends of the truss beams (41) are provided with fixing portions on the connection planes; The end of the truss beam (41) at the lower position in the arrangement unit is connected to the anchor pile support (32), or connected to the bracket pile support (31) at the higher position in the adjacent arrangement unit.

5. The high-low arranged bidirectional cable net structure offshore photovoltaic support system according to claim 1, characterized in that: A cable rack connection structure (71) is provided between the cable net structure (5) and the truss beam (41), wherein the cable rack connection structure (71) is provided with a first connection portion and a second connection portion on the upper chord (411) on both sides of the truss beam (41), respectively, and the non-prestressed component cable (51) or the prestressed stabilizing cable (52) and the truss beam (41) are arranged vertically through the first connection portion and the second connection portion; The first connecting portion comprises a first connecting plate (712) connected to the upper chord (411), a first connecting hole for the cable net structure (5) to pass through is provided in the first connecting plate (712), and a wedge-shaped pad (713) matching the cable net structure (5) is provided in the first connecting hole; The second connecting portion comprises a second connecting plate (715) connected to the upper chord (411), and the second connecting plate (715) is provided with buckles (716) and positioning rods (714) respectively cooperating therewith on both sides of the direction of the cable net structure (5).

6. The high-low arranged bidirectional cable net structure offshore photovoltaic support system according to claim 1, characterized in that: A cross bidirectional cable buckle (72) is arranged at the intersection of the non-prestressed component cable (51) and the prestressed stabilizing cable (52), and the cross bidirectional cable buckle (72) comprises a cover plate (721) separated into upper and lower parts, the upper and lower cover plates (721) are connected to each other, and a groove matching the non-prestressed component cable (51) or the prestressed stabilizing cable (52) is arranged on the inner wall of the cover plate (721).

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

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

9. The high-low arranged bidirectional cable net structure offshore photovoltaic support system according to claim 1, characterized in that: The sag of the prestressed component cable (51) is set between 1 / 8 and 1 / 12.

10. The high-low bidirectional cable net structure offshore photovoltaic support system according to claim 1, characterized in that: A temporary construction structure (9) is also provided on the cable net structure (5), and both ends of the temporary construction structure (9) are simultaneously hung on adjacent prestressed stabilizing cables (52), and a third U-shaped bolt (94) is provided between the two, and an expanded locking groove (96) is provided below the end of the temporary construction structure (9), and a walkway plate is provided in the middle part of the temporary construction structure (9).

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