Photovoltaic unit plate and fast-assembly type offshore photovoltaic system

Abstract

The invention relates to a photovoltaic unit plate and an offshore photovoltaic system, the photovoltaic unit plate comprises a keel frame, the keel frame comprises a main frame and at least one separation frame, the main frame comprises two transverse frames and two longitudinal frames, the separation frame is connected between the two longitudinal frames and is parallel to the transverse frames, and the separation frame is connected with the main frame and is parallel to the transverse frames; the transverse skeletons are arranged in the main skeleton so as to uniformly divide the internal space of the main skeleton into a plurality of photovoltaic installation areas, and the transverse skeletons are provided with hanging parts so as to connect the keel skeleton to a to-be-installed part; a plurality of photovoltaic assemblies, each photovoltaic assembly comprises a frame and a photovoltaic panel, the frames are detachably connected into the photovoltaic installation area, and every two adjacent photovoltaic assemblies arranged in the transverse direction are arranged at intervals. The purpose of rapidly assembling a plurality of photovoltaic modules is achieved in an integrated unit mode and in a hanging mode, meanwhile, a single photovoltaic module can be rapidly disassembled and assembled, and later maintenance is facilitated.

Description

Technical Field

[0001] The present disclosure relates to the technical field of offshore photovoltaic power generation, and in particular to a photovoltaic unit panel and a quick-install offshore photovoltaic system. Background Art

[0002] In recent years, solar photovoltaic power generation has developed rapidly as a green, clean and renewable energy source. At present, the construction of onshore photovoltaic power stations occupies a large area and wastes land significantly. In contrast, although inland water surface photovoltaics can be arranged in idle waters, inland water resources are also limited. Therefore, in order to solve the contradiction between the scarcity of land resources in power consumption centers and the development of photovoltaic power stations, offshore photovoltaics have ushered in development in recent years.

[0003] Although compared with land-based photovoltaics, the sea surface is open and unobstructed, the sunshine hours are longer, and the light energy can be fully utilized, which can significantly increase power generation; however, since the capacity of offshore photovoltaics is often several times that of conventional large-scale centralized photovoltaic power stations on land, the complex marine environmental conditions in the open sea area make it very complicated and difficult to operate photovoltaic panels, both in the early stage of installation on the photovoltaic platform and in the later stage of maintenance and replacement, and they are simply unable to adapt to the harsh working conditions at sea. Summary of the Invention

[0004] The purpose of the present disclosure is to provide a photovoltaic unit plate that can integrate several photovoltaic components for rapid assembly, and can be quickly disassembled for subsequent replacement of related components without mechanical destruction.

[0005] To achieve the above objectives, the present disclosure provides a photovoltaic unit panel for use in an offshore photovoltaic system, comprising:

[0006] A keel frame, comprising a main frame and at least one partition frame, wherein the main frame comprises two transverse frames and two longitudinal frames, the partition frames are connected between the two longitudinal frames and are arranged parallel to the transverse frames to evenly divide the interior space of the main frame into a plurality of photovoltaic installation areas, wherein the transverse frames are provided with hanging parts to enable the keel frame to be connected to the parts to be installed;

[0007] A plurality of photovoltaic assemblies are provided, each of the photovoltaic assemblies comprises a frame and a photovoltaic panel, the frame is detachably connected to the photovoltaic installation area, and is spaced apart between two adjacent photovoltaic assemblies arranged in a transverse direction.

[0008] Optionally, the transverse frame, the longitudinal frame and the partition frame all have an upper support plate and two side plates, each border of the frame has an upper card slot and a lower connecting plate, the edge of the photovoltaic panel is snapped into the inside of the upper card slot, and a positioning structure is provided between the lower surface of the lower connecting plate and the upper support plate; the photovoltaic unit panel also includes a pressing block, which can slide into the border to connect to the lower connecting plate and the side plate to press the frame to the keel frame; or slide out of the border to separate the frame from the photovoltaic installation area.

[0009] Optionally, the positioning structure includes a latch and a positioning assembly, the positioning assembly includes a limiting protrusion and a clamping groove cooperating with the latch, the opening of the clamping groove faces the limiting protrusion, the lower connecting plate is provided with one of the positioning assembly and the latch, and the upper support plate is provided with the other.

[0010] Optionally, the pressure block is constructed as a C-shaped structure, the upper end of the C-shaped structure extends inward to form an upper hook, and the lower end extends upward to form a lower hook, the side panels are respectively provided with grooves, the ends of the upper side walls of the grooves extend downward to form a first latching protrusion, the upper surface of the lower connecting plate extends upward to form a second latching protrusion, and the frame is provided with a plurality of notches at intervals in the extension direction of the second latching protrusion, the upper hook is connected to the second latching protrusion through the notches, and the lower hook is connected to the first latching protrusion.

[0011] According to another aspect of the present disclosure, there is further provided a quick-install offshore photovoltaic system, characterized in that it comprises a photovoltaic platform, a mooring anchor device, and a plurality of photovoltaic unit panels according to any one of claims 1 to 4;

[0012] The photovoltaic platform includes a floating pile foundation and an installation platform, the installation platform includes a truss platform and multiple rows of bearing platforms, each of the bearing platforms is connected to the top of the truss platform through a support beam, and the floating pile foundation is connected between the mooring anchor device and the truss platform;

[0013] Wherein, a hanging base cooperating with the hanging member is provided on the carrying platform so as to install the photovoltaic unit panel on the carrying platform.

[0014] Optionally, the hanging base includes a fixing portion and a hanging rod, the fixing portion is connected to the supporting platform, the hanging member is provided with a mounting groove, the mounting groove is constructed as a stepped groove to form an introduction groove and a hanging groove, the groove width of the introduction groove is greater than the groove width of the hanging groove, the hanging rod includes a rod portion and a clamping block, the rod portion passes through the introduction groove so that the clamping block is connected to the hanging groove.

[0015] Optionally, a reinforcing plate is provided at the lower portion of the hanging rod, the clamping block is constructed in a circular shape, and the diameter of the circle is larger than the width of the hanging slot.

[0016] Optionally, a limiting member is provided at one end of the supporting platform, and the limiting member is constructed in an L-shape and has a limiting baffle and a movable plate. The movable plate is adjustably connected to the supporting platform along the horizontal position of the supporting platform so that the limiting baffle can abut against the hanging member.

[0017] Optionally, the supporting platform is inclined relative to the horizontal plane, and the inclination directions of the two adjacent supporting platforms in each row relative to the horizontal plane are opposite to form a wavy structure, and the wavy structure has multiple crest substructures and multiple trough substructures. A steel horseway for maintenance is set at the lower end of each crest substructure, and gaps are set between adjacent trough substructures.

[0018] Optionally, the floating pile foundation includes a plurality of buoys and pillars, one of the pillars is connected between a buoy and the truss platform and is above sea level, and a manned ladder is provided at a position of one of the pillars above the sea level, and the mooring anchoring device includes an anchor and a plurality of anchor chains, and the plurality of anchor chains are connected between the anchor and the buoy.

[0019] Through the above technical solution, first, a number of photovoltaic modules are integrated with the keel frame to form an integral, independent installation unit plate. At the same time, the keel frame is used to quickly assemble multiple photovoltaic modules to the parts to be installed in the form of hanging. The disassembly process does not require mechanical damage and will not affect the photovoltaic modules. This integrated unit installation method can achieve the integrated combination of multiple photovoltaic modules on land, and then the multiple photovoltaic unit plates are uniformly installed in a modular manner to adapt to the harsh working conditions at sea, greatly improving work efficiency and operator safety. The offshore photovoltaic system provided by the present disclosure includes several of the above-mentioned photovoltaic unit plates, and therefore also has the above-mentioned advantages.

[0020] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0022] Figure 1 Schematic diagram of a top view of a photovoltaic unit plate provided by an embodiment of the present disclosure;

[0023] Figure 2 is based on Figure 1 AA view;

[0024] Figure 3 yes Figure 2 Enlarged view of part C in ;

[0025] Figure 4 This disclosure is based on Figure 3 Embodiment 1 provided regarding the frame structure;

[0026] Figure 5 This disclosure is based on Figure 3 The structural diagram provided by the longitudinal skeleton in FIG;

[0027] Figure 6 yes Figure 2 Enlarged view of part D in FIG;

[0028] Figure 7 is based on Figure 1 BB cross-sectional view in;

[0029] Figure 8 is based on Figure 7 Enlarged view of part E in FIG;

[0030] Figure 9 This disclosure is based on Figure 8 Embodiment 2 of the frame structure provided;

[0031] Figure 10 This disclosure is based on Figure 8 The structural diagram provided by the transverse skeleton in the figure;

[0032] Figure 11 is based on Figure 7 Enlarged view of part F in ;

[0033] Figure 12 This disclosure is based on Figure 11 Embodiment 3 of the frame structure provided in the embodiment;

[0034] Figure 13 This disclosure is based on Figure 11 The structural diagram provided by the separation skeleton in;

[0035] Figure 14 is a schematic structural diagram of the compact provided by the present disclosure;

[0036] Figure 15 is a partial side view schematic diagram of the frame structure provided by the present disclosure;

[0037] Figure 16 is a schematic diagram of a top view of the photovoltaic system provided by the present disclosure;

[0038] Figure 17 based on Figure 16GG schematic diagram in;

[0039] Figure 18 This is a schematic diagram of the assembly of the photovoltaic unit panels and the mounting platform provided by the present disclosure;

[0040] Figure 19 It is a schematic diagram of the assembly of the hanging member and the hanging base provided by the present invention;

[0041] Figure 20 Schematic diagram of the photovoltaic system provided by the present invention from a top view (photovoltaic unit panels are not shown);

[0042] Figure 21 is based on Figure 20 Schematic diagram of the HH structure provided (only the photovoltaic platform part is shown);

[0043] Figure 22 is based on Figure 21 Magnified view of the J part;

[0044] Figure 23 is based on Figure 21 A magnified view of the K part;

[0045] Figure 24 is based on Figure 20 Schematic diagram of the HH structure provided (only the floating pile foundation and mooring anchor device are shown).

[0046] Description of Reference Numerals

[0047] 100-keel frame, 110-partition frame, 120-transverse frame, 130-longitudinal frame, 101-upper support plate, 102-side plate, 103-groove, 1031-first card convex, 200-photovoltaic module, 210-photovoltaic panel, 220-first frame, 230-second frame, 240-third frame, 250-fourth frame, 201-upper card groove, 202-lower connecting plate, 2021-second card convex, 2022-notch, 203-shielding plate, 2031-sealing groove, 204-seal, 300-pressing block, 301-upper card hook, 302-lower card hook, 400-positioning structure, 410-tongue, 420-limiting protrusion, 430-clamping groove, 440--positioning groove, 450-fixed Position protrusion, 500-floating pile foundation, 510-buoy, 520-pillar, 521-ladder, 522-flange, 600-installation platform, 610-truss platform, 620-load-bearing platform, 630-support beam, 621-limiting piece, 6211-limiting baffle, 6212-moving plate, 6213-fixed tooth plate, 630-support beam, 640-steel horseway, 700-hanging piece, 710-installing groove, 711-introduction groove, 712-hanging groove, 800-hanging base, 810-fixed seat, 820-hanging rod, 821-rod, 822-block, 830-reinforcement plate, A-peak substructure, B-trough substructure, 900-mooring anchor device, 910-anchor, 920-anchor chain. DETAILED DESCRIPTION

[0048] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0049] In this disclosure, unless otherwise stated, directional words such as "upper" and "lower" generally refer to the directions of the drawings. Figure 3 As shown in the figure, "inside" and "outside" refer to the inner and outer contours of the corresponding parts, and "horizontal" and "vertical" are respectively Figure 1 The X and Y directions are shown. Furthermore, the terms "first," "second," and the like used in this disclosure are intended to distinguish one element from another and do not imply order or importance. Furthermore, in the following description, when referring to the accompanying drawings, unless otherwise indicated, identical reference numerals in different drawings represent identical or similar elements. The above definitions are intended only to explain and illustrate this disclosure and should not be construed as limiting this disclosure.

[0050] According to the specific embodiment of the present disclosure, Figures 1 to 15As shown, a photovoltaic unit panel is provided for use in an offshore photovoltaic system, wherein the photovoltaic unit panel includes a keel frame 100 and a plurality of photovoltaic modules 200. The keel frame 100 includes a main frame and at least one partition frame 110. The main frame includes two transverse frames 120 and two longitudinal frames 130. The partition frames 110 are connected between the two longitudinal frames 130 and are arranged parallel to the transverse frames 120 to evenly divide the internal space of the main frame into a plurality of photovoltaic installation areas. The transverse frames 120 are provided with hanging parts 700 to enable the keel frame 100 to be connected to the parts to be installed.

[0051] Furthermore, each photovoltaic assembly 200 includes a frame and a photovoltaic panel 210 . The frame is detachably connected to the photovoltaic installation area and is spaced apart between two adjacent photovoltaic assemblies 200 arranged in the transverse direction.

[0052] Through the above technical solution, in the photovoltaic unit panel provided by the present disclosure, first, a plurality of photovoltaic modules 200 are integrated with the keel frame 100 to form a whole, independent installation unit panel. At the same time, the plurality of photovoltaic modules 200 are quickly assembled to the installation part (the installation part may be an offshore photovoltaic platform) by hanging through the keel frame 100. The assembly and disassembly process does not require mechanical damage and will not affect the photovoltaic modules 200. This integrated unit installation method can achieve the integrated combination of multiple photovoltaic modules on land, and then the multiple photovoltaic unit panels can be uniformly modularized to adapt to the harsh working conditions at sea, greatly improving work efficiency and operator safety.

[0053] In addition, each photovoltaic panel 210 is located relative to the photovoltaic installation area (it should be noted that the reference Figure 1 As shown, the partition frame separates the two photovoltaic installation areas) and is relatively independent. Figure 1 As shown, the photovoltaic module 200 is installed in correspondence with the photovoltaic installation area, and the photovoltaic installation area can be divided according to the size of the photovoltaic module 200 to be installed, and can adapt to a variety of photovoltaic panels of different sizes, so that a plurality of sub-installation areas can be set according to the photovoltaic panel to correspond to the installation of each photovoltaic module; at the same time, in order to facilitate the disassembly and assembly of the photovoltaic module, reference is made to Figure 6 As shown, the idle frames (frames not connected to the keel) of two adjacent photovoltaic cell panels in the transverse direction are spaced apart to allow for assembly and disassembly, thereby facilitating assembly and disassembly of individual photovoltaic modules. In other words, at most three frames are connected to the transverse keel 120, the longitudinal keel 130, and the partition keel 110, respectively.

[0054] It should be noted that the transverse frame 120 is connected to the long frame of the photovoltaic module 200, and the longitudinal frame 130 is connected to the short frame of the photovoltaic module 200. In the specific embodiment of the present disclosure, refer to Figure 1 As shown, the frame of the photovoltaic module 200 is rectangular, and accordingly, the main frame is also constructed in a corresponding rectangular structure. Furthermore, both the keel frame 100 and the frame are made of aluminum alloy, which has excellent corrosion and oxidation resistance, high strength, and reliable stability, greatly improving the structural rigidity of the photovoltaic module and enhancing its wind resistance.

[0055] Among them, the keel frame 100 can be connected to the frame in any suitable manner. In the specific embodiment of the present disclosure, the transverse frame 120, the longitudinal frame 130 and the partition frame 110 all have an upper support plate 101 and two side plates 102. Each frame of the frame has an upper card slot 201 and a lower connecting plate 202. The edge of the photovoltaic panel 210 is snapped into the inside of the upper card slot 201, and a positioning structure is provided between the lower surface of the lower connecting plate 202 and the upper support plate 101; the photovoltaic unit panel also includes a pressing block 300, which can slide into the frame to connect to the lower connecting plate 202 and the side plate 102 to press the frame to the keel frame 100; or slide out of the frame to separate the frame from the photovoltaic installation area.

[0056] That is, the keel frame 100 and the frame are initially installed and limited by the positioning structure. After the positioning is completed, the pressure block 300 is used to press the two to achieve a stable connection, thereby fixing the single photovoltaic module 200. If the photovoltaic module 200 is damaged and needs maintenance and replacement in the future, it is only necessary to slide the pressure block 300 out from the frame to separate the photovoltaic module 200 from the keel frame 100. The entire disassembly and assembly process does not require operations such as nailing, and the replacement and maintenance of the photovoltaic module can be completed quickly.

[0057] In addition, the photovoltaic panel 201 can be further bonded to the groove wall of the upper groove 201 by double-sided tape, wherein the double-sided tape can not only be used for connection, but also play a sealing role to prevent seawater from penetrating. The double-sided tape can be waterproof double-sided tape, and the specific material is not limited.

[0058] Furthermore, the positioning structure can be any suitable structure. In the specific embodiment provided by the present disclosure, the positioning structure 400 includes a tongue 410 and a positioning assembly. The positioning assembly includes a limiting protrusion 420 and a clamping groove 430 that cooperates with the tongue 410. The opening of the clamping groove 430 faces the limiting protrusion 420. The lower connecting plate 202 is provided with one of the positioning assembly and the tongue 410, and the upper support plate 101 is provided with the other. Of course, in other embodiments, the positioning structure can also include a positioning groove 440 and a positioning protrusion 450. The lower connecting plate 202 is provided with one of the positioning groove 440 and the positioning protrusion 450, and the upper support plate 101 is provided with the other, as long as the connection between the frame and the keel frame 1 can be limited. It should be noted that the specific number of positioning structures (for example, the number of positioning grooves and positioning protrusions) can be set according to actual installation needs, and this disclosure does not limit this.

[0059] The compact 300 may be constructed in any suitable manner, see Figure 14 As shown, in the specific embodiment of the present disclosure, the pressing block 300 is constructed as a C-shaped structure, the upper end of the C-shaped structure extends inward to form an upper hook 301, and the lower end extends upward to form a lower hook 302, the side panels 102 are respectively provided with grooves 103, the end of the upper side wall of the groove 103 extends downward to form a first latching protrusion 1031, the upper surface of the lower connecting plate 202 extends upward to form a second latching protrusion 2021, and the frame is provided with a plurality of notches 2022 at intervals in the extension direction of the second latching protrusion 2021, the upper hook 301 is connected to the second latching protrusion 2021 through the notch 2022, and the lower hook 302 is connected to the first latching protrusion 1031.

[0060] Among them, reference Figure 15 As shown, notches 2022 are provided at each end of the second latching protrusion 2021 to facilitate the sliding insertion of the pressing block 300 in different directions. Furthermore, the opening length of the notches 2022 must be greater than or equal to the length of the upper hook 301 in the pressing block 300 along the extension direction of the second latching protrusion 2021, so that the upper hook 301 can be vertically restrained by the notches 2022. Furthermore, the number of second latching protrusions 2021 on the frame can be adjusted based on actual needs. To further enhance the restraint, multiple pressing blocks 300 can be spaced apart on each second latching protrusion 2021.

[0061] In addition, reference Figure 1As shown, the partition skeleton 110 connects the frames of the two frames at the same time. Therefore, in order to avoid water accumulation between two adjacent frames, in the specific embodiment of the present disclosure, a shielding plate 203 is also provided at the upper end of the frame. The shielding plate 203 extends upward from the bottom wall of the upper slot and bends and extends toward the adjacent frame until the gap between the two adjacent frames is completely blocked. At the same time, a sealing groove 2031 is provided on the shielding plate toward the adjacent frame on one side. A sealing member 204 is provided inside the sealing groove 2031 to prevent seawater or rainwater from flowing back. The sealing member 204 can be constructed using any suitable structure, and the sealing member 204 includes but is not limited to EPDM strips.

[0062] Among them, at most three sides of the frame are connected to the keel frame 100, and the connection structure of each frame can be set according to actual needs and connected in any appropriate way. Figures 1 to 15 Some of the illustrated embodiments further illustrate and describe the connection structure between each frame of the frame and each frame in the keel frame.

[0063] First, in the specific embodiments provided in this disclosure, refer to Figure 1 As shown, a partition frame 110 is provided inside the main frame. Therefore, as an embodiment, one keel frame 100 can be adapted to install four separate photovoltaic modules 200. Each frame includes four frames, namely a first frame 220 and a second frame 230 arranged in the transverse direction, and a third frame 240 and a fourth frame 250 arranged in the longitudinal direction. The first frame 220 is located on the outside and connected to the transverse frame 120, the second frame 230 is located on the inside and connected to the partition frame 110, the third frame 240 is located on the outside and connected to the longitudinal frame, and the fourth frame 250 is located on the inside. Figure 6 As shown, the two fourth frames 250 arranged in the transverse direction leave space for assembly and disassembly. It should be noted that the inner side and outer side here are relative to the rectangular main frame, the inner side is close to the center, and the outer side is close to the edge of the main frame.

[0064] refer to Figures 2 to 5As shown, it shows the connection structure of the longitudinal frame 130 and the third frame 240 and the pressing block 300. As an embodiment, the third frame 240 has two second latching protrusions 2021 arranged at both ends of the lower connecting plate 202, and the second latching protrusion 2021 located on the inner side extends toward the inner side to form a latching tongue 410. Correspondingly, a limiting protrusion 420 is provided at the outer end of the longitudinal frame 130, and a clamping groove 430 is formed at the inner end. During installation, the latching tongue 410 is first inserted into the clamping groove 430, and the second latching protrusion 2021 at the outer end is laterally limited by the limiting protrusion 420. After the limitation is completed, the pressing block 300 is respectively clamped to the two second latching protrusions 2021 for further vertical limitation, and finally the connection and fixation of the longitudinal frame 130 and the third frame 240 are completed.

[0065] refer to Figures 7 to 10 As shown, it shows the connection structure of the transverse frame 120 and the first frame 220 and the pressing block 300, as an embodiment, wherein the first frame 220 has two second latching protrusions 2021 arranged at both ends of the lower connecting plate 202, and the lower surface of the lower connecting plate is provided with a positioning groove 440. Correspondingly, the upper support plate 101 of the transverse frame 120 is provided with a positioning protrusion 450. During installation, it is only necessary to insert the positioning groove 440 into the interior of the positioning protrusion 450. The positioning protrusion 450 is roughly a triangular protrusion, which is convenient for connection and can limit the longitudinal direction of the first frame 220. After the initial positioning is completed, the vertical direction is limited by the pressing block 300. The specific connection form is the same as the above-mentioned longitudinal frame, which will not be described in detail.

[0066] refer to Figures 11 to 13 As shown, it shows the connection between the separation frame 110 and the second frame 230 and the pressing block 300. As an embodiment, refer to Figure 13 As shown, the separation frame 110 needs to be connected to the two third frames 230 at the same time. Therefore, two sets of positioning structures are set on the separation frame 110. Figure 15 As shown, the upper support plate 101 is provided with two positioning protrusions 450, and two limiting protrusions 420 are also provided between the two positioning protrusions 450. At the same time, in order to avoid taking up too much installation space, the two adjacent second frames 230 are each provided with a second locking protrusion 2021 at one end, and are respectively provided with a positioning groove 440 connected to the positioning protrusion 450. At the same time, the two limiting protrusions 420 are used to limit the two second frames to achieve longitudinal limitation, and finally the vertical limitation is achieved by the pressing block 300. The specific connection form is the same as the longitudinal frame described above and will not be described in detail. In addition, a shielding plate 203 can be provided on any of the second frames 230 to block the gap between the two adjacent second frames 230.

[0067] It should be noted that in other embodiments, the frame can also select two of the frames for connection, and the positioning structures of the frames can be the same or different positioning structures can be selected, as long as the initial limiting fixation can be achieved. The number of the first latch and the second latch can also be set according to installation requirements, and this disclosure does not impose any restrictions on this.

[0068] refer to Figures 16 to 24 As shown, according to a specific embodiment of the present disclosure, a quick-install offshore photovoltaic system is also provided, comprising a photovoltaic platform, a mooring anchor device 900 and a plurality of photovoltaic unit panels disclosed above;

[0069] The photovoltaic platform includes a floating pile foundation 500 and an installation platform 600. The installation platform 600 includes a truss platform 610 and multiple rows of load-bearing platforms 620. Each load-bearing platform 620 is connected to the top of the truss platform 610 via a support beam 630. The floating pile foundation 500 is connected between the mooring anchor device and the truss platform 610.

[0070] The carrying platform 620 is provided with a hanging base 800 that cooperates with the hanging member 700 so as to install the photovoltaic unit panel on the carrying platform 620 .

[0071] Through the above technical solution, the quick-install offshore photovoltaic system provided by the present invention can realize the rapid installation of multiple photovoltaic single-panel panels, which can meet the large-scale assembly of offshore photovoltaic systems. Specifically, all unit panels can be pre-assembled in the factory, and after being transported to the installation platform 600 in groups, they can be directly hung on site; if replacement and maintenance are required in the later stage, the photovoltaic components can be quickly disassembled and installed in the installation platform area. No glue or mechanical nailing is required during installation, and the operation is simple, which greatly reduces the risk of on-site installation for workers and improves the work efficiency of on-site installation; in addition, it is more targeted and can realize the disassembly and assembly of a single photovoltaic component without affecting the use of other photovoltaic components.

[0072] Furthermore, the mounting platform 600 utilizes a steel structure, which features high strength, light weight, good overall rigidity, and strong resistance to deformation. A truss platform 610 is employed as the base support platform, strengthening the overall structure while also preventing water accumulation on the platform. The supporting platform 620 can be constructed from two spaced-apart I-beams, with the two transverse frames 130 of a photovoltaic cell being attached to the two I-beams, respectively, to facilitate attachment of individual photovoltaic cells. Optionally, two mounting bases 800 can be provided at each transverse end of an I-beam, with two corresponding mounting members 700 provided on the transverse frame 130.

[0073] The mounting base 800 may be constructed in any suitable manner. Figure 18 and Figure 19 As shown, the hanging base 800 includes a fixing portion 810 and a hanging rod 820, the fixing portion 810 is connected to the supporting platform 620, the hanging member 700 is provided with a mounting groove 710, the mounting groove 710 is constructed as a stepped groove to form an introduction groove 711 and a hanging groove 712, the groove width of the introduction groove 711 is greater than the groove width of the hanging groove 712, the hanging rod 820 includes a rod portion 821 and a block 822, the rod portion 821 passes through the introduction groove 711 so that the block 822 is connected to the hanging groove 712.

[0074] refer to Figure 18 As shown by the arrow, the photovoltaic unit plate is passed through the guide groove 711 to achieve the rapid insertion of the hanging rod 820. After the clamping block 822 enters the hanging groove 712, it is quickly installed in place. Among them, the upper end of the hanging member 700 can be connected to the transverse frame 120 by bolts.

[0075] In a specific embodiment of the present disclosure, a reinforcing plate 830 is provided at the lower portion of the hanging rod 820, and the blocking block 822 is constructed in a circular shape, and the diameter of the circle is larger than the groove width of the hanging groove 712. In this way, the blocking block 822 can further limit the longitudinal displacement of the photovoltaic unit plate to ensure the stability of the hanging.

[0076] Furthermore, in order to limit the lateral displacement of the photovoltaic unit plate, in the specific embodiment of the present disclosure, reference is made to Figure 19 As shown, a limiting member 621 is provided at one end of the supporting platform 620. The limiting member 621 is constructed in an L shape and has a limiting baffle 6211 and a movable plate 6212. The movable plate 6212 is adjustably connected to the supporting platform 620 along the horizontal position of the supporting platform 620 so that the limiting baffle 6211 can abut against the hanging member 700.

[0077] Optionally, the lower surface of the movable plate 6212 is set to be serrated, and is matched with a fixed tooth plate 6213 with upper serrations. After being hung in place, the movable plate 6212 can be moved relative to the fixed tooth plate 6213 by loosening the bolt fasteners to block the hanging parts to limit their lateral displacement, further improve the reliability of the hanging, and prevent the photovoltaic unit panels from falling off under the action of wind loads.

[0078] In order to save the installation area and avoid the shading between photovoltaic arrays, in the specific embodiment of the present disclosure, reference is made to Figure 17 and Figure 21As shown, the supporting platform 620 is arranged to be inclined relative to the horizontal plane, and the inclination directions of the two adjacent supporting platforms 620 in each row relative to the horizontal plane are opposite to each other to form a wavy structure. The panel arrangement of this wavy structure has high space utilization and no mutual obstruction between components, good drainage, reasonable force form, and is suitable for harsh working conditions at sea. Optionally, the angle between two adjacent supporting platforms may be no greater than 30°, and the photovoltaic module 200 may adopt a double-glass double-sided photovoltaic module, which increases the glass strength of the photovoltaic module itself while also utilizing the reflected light on the sea surface and the scattered light in the air to increase the gain of power generation. Of course, in other embodiments, the photovoltaic module may also adopt a flexible photovoltaic module, which is not limited by the present disclosure.

[0079] refer to Figure 19 As shown, the wavy structure comprises multiple peak substructures A and multiple trough substructures B. A steel walkway 640 is located at the bottom of each peak substructure A for maintenance. This allows workers to access maintenance locations and complete all replacement work beneath the photovoltaic array, ensuring efficient and complete installation. Furthermore, gaps are provided between adjacent trough substructures B to prevent water from accumulating in the troughs and corroding the photovoltaic cell panels.

[0080] In addition, in order to adapt to the severe working conditions such as sea waves, storm surges, overlapping ice and sea ice accumulation in the northern seas, reference Figure 17 and Figure 24 As shown, in a specific embodiment of the present disclosure, the floating pile foundation 500 includes a plurality of buoys 510 and pillars 520, one pillar 520 is connected between one buoy 510 and the truss platform 610 and is above sea level, and the mooring anchoring device 900 includes an anchor 910 and a plurality of anchor chains 920, a plurality of the anchor chains 920 are connected between the anchor 910 and the buoy 510, and the tension between the anchor chains 920 and the anchor 910 is fixed and maintained.

[0081] By adopting a segmented pile foundation structure, the buoy 510 is responsible for connecting with the anchor chain 920, and the pillar 520 is screwed to the top truss platform 610 through a flange and bolt group to raise the overall installation platform 600. Optionally, this installation platform can be located more than 10 meters above sea level (the specific location can be adjusted according to actual conditions) and can adapt to deep-sea installation to solve the current offshore photovoltaic system faced by the impact of waves, winter ice and plankton on photovoltaic power stations, so that there will be no problem of water accumulation on the top of the installation platform.

[0082] And taking into account issues such as later maintenance and replacement, in a specific embodiment of the present disclosure, a manned ladder 521 is provided at a position where one of the pillars 520 exceeds the sea level, so that when workers arrive at the on-site sea area, they can directly reach the truss platform 610 through the manned ladder 521.

[0083] In the specific embodiments of the present disclosure, reference is made to Figure 16 As shown, a photovoltaic array (composed of several photovoltaic unit panels) may include four sets of floating pile foundations and mooring anchoring devices.

[0084] The photovoltaic platform, mooring anchor device 900, and photovoltaic unit panels in the quick-install offshore photovoltaic system provided by the present disclosure can all be processed and assembled in a land-based processing plant and then shipped to the offshore photovoltaic application site for on-site assembly. The specific processing and assembly steps can be as follows:

[0085] Step 1: After the support 520 (steel pipe structure) and the buoy 510 are assembled and welded, fluorocarbon spraying is performed;

[0086] Step 2: The anchor chain 920 and the anchor piece 910 are assembled and connected to form the mooring anchor device 900 and installed as a whole with the buoy 510. The whole device is transported to the site, with a total of four sets.

[0087] Step 3: Weld the truss platform 610 according to the drawings, and pre-install the mounting base 800 and the stopper 621 at the corresponding positions. After completion, all steel structures are fluorocarbon sprayed. After the entire truss platform 610 unit is completed, it is transported to the construction site as a whole.

[0088] Step 4: Open the mold of the frame and keel frame 100, spray the aluminum material with fluorocarbon, and then carry out processing according to the drawing;

[0089] Step 5: Assemble the frame and photovoltaic panels, and assemble the photovoltaic modules and keel frame into a large photovoltaic unit plate. Each photovoltaic unit plate contains four photovoltaic modules, forming a whole. After all the photovoltaic modules are assembled, they are transported to the construction site as a whole.

[0090] Step 6: Assemble the floating pile foundation and mooring anchoring device, photovoltaic platform, and photovoltaic unit panels shipped to the site.

[0091] Based on this, the offshore photovoltaic system provided by the present invention has a photovoltaic platform more than 10 meters above sea level, which solves the impact of waves, winter ice and plankton on photovoltaic power stations currently faced by offshore photovoltaic systems; in addition, the photovoltaic components adopt an assembled unit system, which is a quick-install system that can be directly hung on site without the need for screw fixation. The components can be quickly disassembled for later replacement without mechanical damage. It is an assembled offshore photovoltaic system that can be quickly installed and easily disassembled for maintenance, effectively improving offshore operation efficiency and construction safety.

[0092] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0093] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0094] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A photovoltaic unit plate for an offshore photovoltaic system, characterized in that: include: A keel frame, comprising a main frame and at least one partition frame, wherein the main frame comprises two transverse frames and two longitudinal frames, the partition frames are connected between the two longitudinal frames and are arranged parallel to the transverse frames to evenly divide the interior space of the main frame into a plurality of photovoltaic installation areas, wherein the transverse frames are provided with hanging parts to enable the keel frame to be connected to the parts to be installed; A plurality of photovoltaic assemblies are provided, each of the photovoltaic assemblies comprises a frame and a photovoltaic panel, the frame is detachably connected to the photovoltaic installation area, and is spaced apart between two adjacent photovoltaic assemblies arranged in a transverse direction.

2. The photovoltaic unit plate according to claim 1, characterized in that: The transverse frame, the longitudinal frame and the partition frame all have an upper support plate and two side plates. Each frame frame has an upper slot and a lower connecting plate. The edge of the photovoltaic panel is snapped into the inside of the upper slot. A positioning structure is provided between the lower surface of the lower connecting plate and the upper support plate. The photovoltaic unit panel also includes a pressing block, which can slide into the frame to connect to the lower connecting plate and the side plate to press the frame to the keel frame; or slide out of the frame to separate the frame from the photovoltaic installation area.

3. The photovoltaic unit plate according to claim 2, characterized in that: The positioning structure includes a latch and a positioning assembly, the positioning assembly includes a limiting protrusion and a clamping groove cooperating with the latch, the opening of the clamping groove faces the limiting protrusion, the lower connecting plate is provided with one of the positioning assembly and the latch, and the upper support plate is provided with the other.

4. The photovoltaic unit plate according to claim 2, characterized in that: The pressure block is constructed as a C-shaped structure, the upper end of the C-shaped structure extends inward to form an upper hook, and the lower end extends upward to form a lower hook. The side plates are respectively provided with grooves, and the ends of the upper side walls of the grooves extend downward to form a first latching protrusion. The upper surface of the lower connecting plate extends upward to form a second latching protrusion. The frame is provided with a plurality of notches at intervals in the extension direction of the second latching protrusion. The upper hook is connected to the second latching protrusion through the notches, and the lower hook is connected to the first latching protrusion.

5. A quick-install offshore photovoltaic system, characterized in that: It comprises a photovoltaic platform, a mooring anchoring device and a plurality of photovoltaic unit panels according to any one of claims 1 to 4; The photovoltaic platform includes a floating pile foundation and an installation platform, the installation platform includes a truss platform and multiple rows of bearing platforms, each of the bearing platforms is connected to the top of the truss platform through a support beam, and the floating pile foundation is connected between the mooring anchor device and the truss platform; Wherein, a hanging base cooperating with the hanging member is provided on the carrying platform so as to install the photovoltaic unit panel on the carrying platform.

6. The quick-install offshore photovoltaic system according to claim 5, characterized in that: The hanging base includes a fixing part and a hanging rod, the fixing part is connected to the supporting platform, the hanging part is provided with a mounting groove, the mounting groove is constructed as a stepped groove to form an introduction groove and a hanging groove, the groove width of the introduction groove is greater than the groove width of the hanging groove, the hanging rod includes a rod part and a clamping block, the rod part passes through the introduction groove so that the clamping block is connected to the hanging groove.

7. The quick-install offshore photovoltaic system according to claim 6, characterized in that: A reinforcing plate is provided at the lower portion of the hanging rod, the clamping block is circular in structure, and the diameter of the circle is greater than the width of the hanging slot.

8. The quick-install offshore photovoltaic system according to claim 5, characterized in that: A limiting member is provided at one end of the carrying platform. The limiting member is constructed in an L shape and has a limiting baffle and a movable plate. The movable plate is adjustably connected to the carrying platform along the horizontal position of the carrying platform so that the limiting baffle can abut against the hanging member.

9. The quick-install offshore photovoltaic system according to claim 5, characterized in that: The supporting platform is inclined relative to the horizontal plane, and the inclination directions of the two adjacent supporting platforms in each row relative to the horizontal plane are opposite to each other to form a wavy structure. The wavy structure has multiple peak sub-structures and multiple trough sub-structures. A steel horseway for maintenance is set at the lower end of each peak sub-structure, and gaps are set between adjacent trough sub-structures.

10. The quick-install offshore photovoltaic system according to claim 5, characterized in that: The floating pile foundation includes a plurality of buoys and pillars, one of the pillars is connected between a buoy and the truss platform and is above sea level, and a manned ladder is provided at a position where one of the pillars is above sea level, and the mooring anchoring device includes an anchor and a plurality of anchor chains, and the plurality of anchor chains are connected between the anchor and the buoy.

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