Offshore disaster prevention photovoltaic structure capable of being folded and stored

Abstract

The invention relates to the technical field of offshore photovoltaic power generation, and discloses an offshore disaster prevention photovoltaic structure capable of being folded and stored, the offshore disaster prevention photovoltaic structure comprises a floating storage box body and a folding photovoltaic support, the floating storage box body is composed of a steel floating box, a disaster prevention storage box, an active traction stand column, a clip-shaped clamping plate and an active traction anchor cable; the folding photovoltaic bracket comprises a trapezoidal photovoltaic panel, a two-section top hole supporting rod, a top hinge, a passive connection anchor cable, a spherical hinge and a special-shaped photovoltaic panel; the multiple driving traction stand columns are fixedly connected to the top of the steel floating box. The folding photovoltaic frame and the connecting structure thereof are automatically folded and stored in the disaster prevention storage box before severe weather comes, so that an exposed photovoltaic surface which is originally located at the top and has the area of dozens of to hundreds of square meters is completely folded, and the damage risk caused by typhoon, wave, hail impact and the like is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of offshore photovoltaic power generation, and in particular to an offshore disaster prevention photovoltaic structure that can be folded and stored. Background Art

[0002] Energy is the core driving force for efficient operation and sustainable development of modern society. Photovoltaic energy, as one of the new energy sources, is one of the main directions for the development of low-carbon energy in the future. Offshore photovoltaic power generation refers to a new type of power generation method that uses the vast space of the ocean to install photovoltaic panels on the water surface or floating structures above the water surface to convert solar energy into electrical energy. my country has a coastline of 18,000 km, and the exploitable photovoltaic capacity within 50m water depth exceeds 1 billion kw, with huge development potential.

[0003] Existing offshore photovoltaic systems generally use thicker civilian photovoltaic panels. Although these panels are low-cost, they are difficult to fold and store due to their heavy characteristics. Therefore, they are usually designed to be laid flat directly. Although this design can play the role of photovoltaic power generation under normal circumstances, it lacks sufficient disaster resistance in the face of extreme weather such as typhoons and hail. Due to the particularity of the marine environment, including strong winds, huge waves and severe climate, traditional photovoltaic structures often cannot effectively cope with these extreme situations, thus posing a great safety hazard. In addition, the existing folding and storage technologies have not yet met the requirements of efficient disaster prevention, and the wind and wave resistance of photovoltaic panels is poor, and cannot provide sufficient protection. Especially in extreme environments such as typhoons, the instability of the structure and the risk of exposure of photovoltaic panels increase, which not only affects the operating efficiency of the system, but also easily leads to significant losses. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a foldable and storable offshore disaster prevention photovoltaic structure, which solves the problem of insufficient disaster resistance in existing offshore photovoltaic systems due to their heavy structure and difficulty in folding and storing.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a foldable offshore disaster prevention photovoltaic structure, comprising a floating storage box and a foldable photovoltaic bracket, wherein the floating storage box is welded by a steel floating box, a disaster prevention storage box, an active traction column, a circular card plate and an active traction anchor cable;

[0006] The folding photovoltaic support includes a trapezoidal photovoltaic panel, a two-section top hole support rod, a top hinge, a passive connection anchor cable, a spherical hinge, and a special-shaped photovoltaic panel.

[0007] Preferably, a plurality of active traction columns are provided, and the plurality of active traction columns are respectively fixedly connected to the top of the steel floating box. Electric hoists are installed on the tops of the plurality of active traction columns. A retracting and releasing assembly is provided in the middle of the electric hoist for retracting and releasing the foldable photovoltaic bracket and unfolding and folding the photovoltaic panel.

[0008] Preferably, the trapezoidal photovoltaic panel and the special-shaped photovoltaic panel are rotationally connected by a spherical hinge. A plurality of the trapezoidal photovoltaic panels are rotationally connected by a passive connecting cable. The plurality of connected trapezoidal photovoltaic panels and the special-shaped photovoltaic panel form a rectangular photovoltaic array. The rectangular photovoltaic array is rotationally connected by a top hinge to a two-section top-hole support rod.

[0009] Preferably, the retracting and releasing assembly includes an active traction cable. One end of the active traction cable is fixedly connected to the middle of the electric hoist, and the other end of the active traction cable is fixedly connected to the top of the two-section top-hole support rod. The two-section top-hole support rod is a rectangular-section vertical rod that is thicker at the top and thinner at the bottom, and a hanging hole is provided at its top for hanging one end of the active traction cable.

[0010] Preferably, the loop-shaped clamping plate is formed by splicing two C-shaped plates. When the photovoltaic panel array is unfolded and operating, the loop-shaped clamping plate is clamped at the two joints of the two-section top-hole support rod to fix the foldable photovoltaic bracket.

[0011] Preferably, the steel floating box is a cube, and the cross-section of the inner hollow part is a rectangle. The steel floating box is entirely welded by thick steel plates.

[0012] The present invention also provides a method for using a foldable and retractable offshore disaster prevention photovoltaic structure, including the following steps:

[0013] S1. Pre-fold and retract the foldable photovoltaic bracket into the disaster prevention storage box in the floating storage box body to form an overall assembled structure; the center of gravity of the structure sinks, and the floating stability is enhanced, which is suitable for being towed by a tugboat to the designated offshore operation position;

[0014] S2. After positioning the structure, a plurality of active traction cables are respectively passed through the hanging holes provided at the top of the two-section top-hole support rod; the electric hoist provided at the top of the active traction column is used to tighten the active traction cable to realize the vertical rise of the two-section top-hole support rod;

[0015] S3. When the two-section top-hole support rod rises to the designated operating height, the loop-shaped clamping plate is clamped at the two joints of the support rod to form structural limitation and fixation for it to support the photovoltaic module to unfold and operate;

[0016] S4, hooking the free end of the active traction anchor cable on the trapezoidal photovoltaic panel and the special-shaped photovoltaic panel, and by continuing to tighten the anchor cable, the photovoltaic assembly is gradually unfolded under the action of traction until a rectangular photovoltaic array is formed and reaches a horizontal operating state; thereafter, the active traction anchor cable is locked to ensure that the photovoltaic panel is in a stable operating state;

[0017] S5. When a severe weather warning signal is received, the above-mentioned deployment process is performed in reverse: unlock the traction anchor cable, gradually release the pulling force, and allow the photovoltaic panel to fold and retract under the action of gravity; release the circular pallet, retract the two-section top hole support rod to the initial state, and store the photovoltaic component as a whole into the disaster prevention storage box to reduce the exposed area on the top.

[0018] The present invention provides a foldable photovoltaic structure for disaster prevention at sea, which has the following beneficial effects:

[0019] 1. The present invention automatically folds the foldable photovoltaic frame and its connecting structure and stores them in a disaster prevention storage box before the arrival of severe weather, so that the exposed photovoltaic surface originally at the top with an area of ​​tens to hundreds of square meters is completely folded, and finally only less than 0.5 square meters of the top exposed area is retained, thereby greatly reducing the risk of damage caused by typhoons, waves and hail impacts.

[0020] 2. The present invention adopts modular design, and most of the pre-assembly work can be completed on the shore. The folding photovoltaic bracket is in a folded storage state during transportation. The overall structure has a very low center of gravity and has good buoyancy and stability, which is convenient for floating to the target sea area by tugboat. This structural form not only improves the safety of the equipment during transportation, but also makes full use of the limited offshore construction window, greatly reduces the construction period and operation risks, facilitates high-frequency opening and closing operations, and adapts to the ever-changing meteorological conditions at sea. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 for Figure 1 A top view of

[0023] Figure 3 for Figure 2 A front view of

[0024] Figure 4 for Figure 2 Side view of

[0025] Figure 5 It is a schematic diagram of the top hinge of the present invention;

[0026] Figure 6 for Figure 5 Front view of .

[0027] Among them, 1. Floating storage box; 2. Folding photovoltaic bracket; 11. Steel floating box; 12. Disaster prevention storage box; 13. Active traction column; 14. Return-shaped clamping plate; 15. Active traction cable; 21. Trapezoidal photovoltaic panel; 22. Two-section top-hole support rod; 23. Top hinge; 24. Passive connection cable; 25. Ball hinge; 26. Special-shaped photovoltaic panel. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the specification of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment:

[0030] Please refer to the attached Figure 1 - attached Figure 6 , the embodiment of the present invention provides a foldable and retractable marine disaster prevention photovoltaic structure, including a floating storage box 1 and a folding photovoltaic bracket 2. The floating storage box 1 is welded and composed of a steel floating box 11, a disaster prevention storage box 12, an active traction column 13, a return-shaped clamping plate 14 and an active traction cable 15;

[0031] The folding photovoltaic bracket 2 includes a trapezoidal photovoltaic panel 21, a two-section top-hole support rod 22, a top hinge 23, a passive connection cable 24, a ball hinge 25, and a special-shaped photovoltaic panel 26.

[0032] The steel floating box 11 mainly provides buoyancy to ensure the overall structure remains stable on the water surface; while the disaster prevention storage box 12 is used to store photovoltaic panels and brackets; multiple active traction columns 13 can conveniently support the entire photovoltaic structure and also provide traction for the deployment of the photovoltaic panels. An electric winch is a power device that can control the retraction and release of the active traction cable 15. Through the operation of the electric winch, the active traction cable 15 can be tightened or loosened, so that the photovoltaic bracket moves along a predetermined path;

[0033] The folding photovoltaic bracket 2 is composed of multiple trapezoidal photovoltaic panels 21 and two-section top-hole support rods 22; a suitable solar panel is installed on each trapezoidal photovoltaic panel 21, which can efficiently convert sunlight into electrical energy. The two-section top-hole support rods 22 in the folding photovoltaic bracket 2 play a key role. They are connected to the trapezoidal photovoltaic panels 21 through ball hinges 25; the ball hinges 25 enable the photovoltaic panels to rotate or fold freely, ensuring that the photovoltaic panels can move smoothly during the deployment and retraction processes without being restricted.

[0034] Please refer to the attached Figure 1 - attached Figure 6, There are multiple active traction columns 13, and the multiple active traction columns 13 are respectively fixedly connected to the top of the steel floating box 11. Electric winches are installed on the tops of the multiple active traction columns 13, and a winding and unwinding assembly is provided in the middle of the electric winch, which is used to realize the winding and unwinding of the folding photovoltaic bracket 2 and the unfolding and folding of the photovoltaic panel.

[0035] The top hinges 23 are evenly distributed at the key positions of the structure and are used to connect and fix multiple two-section top-hole support rods 22 and the rectangular photovoltaic panel array; each top hinge 23 has a connecting function to ensure that each trapezoidal photovoltaic panel 21 can maintain a stable and flexible connection, facilitating unfolding or storage.

[0036] Please refer to the appendix Figure 1 - appendix Figure 6 , The trapezoidal photovoltaic panel 21 and the special-shaped photovoltaic panel 26 are rotatably connected by a spherical hinge 25. There are multiple trapezoidal photovoltaic panels 21, and the multiple trapezoidal photovoltaic panels 21 are rotatably connected by a passive connection cable 24. The multiple connected trapezoidal photovoltaic panels 21 and the special-shaped photovoltaic panels 26 form a rectangular photovoltaic array, and the rectangular photovoltaic array is rotatably connected to the two-section top-hole support rod 22 through the top hinge 23.

[0037] The number of trapezoidal photovoltaic panels 21 is large to ensure that solar energy can be effectively received and converted into electric energy; these photovoltaic panels are connected together by multiple passive connection cables 24 to form a coherent photovoltaic array. Through these connections, the multiple photovoltaic panels can maintain the stability of the overall structure when unfolded and will not be misaligned due to external wind force or other factors.

[0038] Please refer to the appendix Figure 1 - appendix Figure 6 , The winding and unwinding assembly includes an active traction cable 15. One end of the active traction cable 15 is fixedly connected to the middle of the electric winch, and the other end of the active traction cable 15 is fixedly connected to the top of the two-section top-hole support rod 22. The two-section top-hole support rod 22 is a rectangular-section vertical rod with a thick upper part and a thin lower part, and a hanging hole is opened at its top for hanging one end of the active traction cable 15; the loop-shaped clamping plate 14 is composed of two C-shaped plates spliced together. When the photovoltaic panel array is unfolded and operating, the loop-shaped clamping plate 14 is clamped at the two-section connection of the two-section top-hole support rod 22 to fix the folding photovoltaic bracket 2; the steel floating box 11 is a cube, and the cross-section of the inner hollow part is rectangular. The steel floating box 11 is welded throughout with thick steel plates.

[0039] When the photovoltaic panel array is unfolded and put into operation, two loop-shaped clamping plates 14 will clamp the connection part between the two-section top-hole support rods 22. Through this clamping structure, the loop-shaped clamping plate 14 can firmly fix the two-section top-hole support rod 22 in place, thereby ensuring the stability of the folding photovoltaic bracket 2 in the working state and preventing it from loosening or misaligning due to external forces.

[0040] The usage method of a foldable and stowable marine disaster prevention photovoltaic structure described below can be mutually referred to with a foldable and stowable marine disaster prevention photovoltaic structure described above.

[0041] The present invention also provides a usage method of a foldable and stowable marine disaster prevention photovoltaic structure, comprising the following steps:

[0042] S1. Pre-fold and stow the folding photovoltaic support 2 into the disaster prevention storage box 12 in the floating storage box body 1 to form an overall assembly structure; the center of gravity of the structure sinks, and the floating stability is enhanced, which is suitable for being towed by a tugboat to a designated offshore operation position;

[0043] S2. After positioning the structure, a plurality of active traction anchor cables 15 are respectively passed through the hanging holes provided at the top of the two-stage top-hole support rod 22; the active traction anchor cables 15 are tightened by the electric winches provided at the top of the active traction columns 13 to realize the vertical rise of the two-stage top-hole support rod 22;

[0044] S3. When the two-stage top-hole support rod 22 rises to the designated operating height, the loop-shaped clamping plate 14 is clamped at the connection of the two sections of the support rod to form structural limit and fixation for it to support the deployment operation of the photovoltaic module;

[0045] S4. Hook the free ends of the active traction anchor cables 15 on the trapezoidal photovoltaic panel 21 and the special-shaped photovoltaic panel 26, and by continuously tightening the anchor cables, the photovoltaic module is gradually deployed under the action of the traction force until a rectangular photovoltaic array is formed and reaches the horizontal operating state; thereafter, lock the active traction anchor cables to ensure that the photovoltaic panel is in a stable operating state;

[0046] S5. When receiving a severe weather warning signal, execute the above deployment process in reverse: unlock the traction anchor cables, gradually release the tension, so that the photovoltaic panel folds and retracts under the action of gravity; release the loop-shaped clamping plate 14, contract the two-stage top-hole support rod 22 to the initial state, and stow the whole photovoltaic module into the disaster prevention storage box 12 to reduce the exposed area at the top.

[0047] The usage method of this embodiment can be used to implement the above device embodiment, and its principle and technical effects are similar, which will not be elaborated here.

[0048] Working principle: Before the structure is put into use, all the photovoltaic panels and their brackets are in a folded state and are completely stored in the disaster prevention storage box 12. At this time, the center of gravity of the structure is relatively low, and the overall floating stability is good, which is convenient for transporting it to the designated sea area by sea towing. After arriving at the deployment position, start the electric winch installed at the top of the active traction column 13 to drive the active traction cable 15 to pull upward. The active traction cable 15 is connected to the hanging hole at the top of the two-section top-hole support rod 22, and the two-section top-hole support rod 22 originally stored in the box is vertically lifted. The two-section top-hole support rod 22 adopts a nested design with a thicker upper part and a thinner lower part. After the top is lifted, the return-shaped clamping plate 14 is clamped into the connection position between its upper and lower sections to complete the stable positioning of the structure. Subsequently, continue to use the active traction cable 15 to connect and pull the trapezoidal photovoltaic panel 21 and the special-shaped photovoltaic panel 26 located on the folding photovoltaic bracket 2. Under the action of the traction force, the trapezoidal photovoltaic panel 21 and the special-shaped photovoltaic panel 26 are gradually unfolded through the top hinge 23 and the spherical hinge 25, and finally spread to an approximately horizontal state to form a photovoltaic surface array with a certain area. After the unfolding process is completed, the structure enters the power generation operation state. After receiving a severe weather warning, the disaster prevention mode can be quickly activated. First, unlock the active traction cable 15, so that the trapezoidal photovoltaic panel 21 and the special-shaped photovoltaic panel 26 rely on the hinge structure to fold downward one by one under their own gravity and reverse traction, and control their folding path and rhythm through the passive connection cable 24 and the active traction cable 15. Finally, the entire folding photovoltaic bracket 2 sinks again and is stored in the disaster prevention storage box 12 to achieve the complete closure of the structure and the comprehensive protection of multiple trapezoidal photovoltaic panels 21 and special-shaped photovoltaic panels 26. The entire unfolding and storage process controls the movement of the active traction cable 15 through the electric winch and is jointly completed by various hinges and connection cables.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foldable and storable marine disaster prevention photovoltaic structure, comprising a floating storage box body (1) and a foldable photovoltaic support (2), characterized in that, The floating storage box body (1) is composed of a steel floating box (11), a disaster prevention storage box (12), an active traction column (13), a loop-shaped clamping plate (14), and an active traction cable (15); The foldable photovoltaic support (2) includes a trapezoidal photovoltaic panel (21), a two-section top-hole support rod (22), a top hinge (23), a passive connection cable (24), a spherical hinge (25), and a special-shaped photovoltaic panel (26).

2. The foldable and collapsible marine disaster prevention photovoltaic structure according to claim 1, wherein A plurality of the active traction columns (13) are provided, and the plurality of active traction columns (13) are respectively fixedly connected to the top of the steel floating box (11). Electric hoists are installed on the tops of the plurality of active traction columns (13). A winding and unwinding assembly is arranged in the middle of the electric hoist, which is used to realize the winding and unwinding of the foldable photovoltaic support (2) and the unfolding and folding of the photovoltaic panel.

3. A foldable and collapsible marine disaster prevention photovoltaic structure according to claim 1, wherein, The trapezoidal photovoltaic panel (21) and the special-shaped photovoltaic panel (26) are rotatably connected by a spherical hinge (25). A plurality of the trapezoidal photovoltaic panels (21) are provided, and the plurality of trapezoidal photovoltaic panels (21) are rotatably connected by a passive connection cable (24). The plurality of connected trapezoidal photovoltaic panels (21) and the special-shaped photovoltaic panel (26) form a rectangular photovoltaic array, and the rectangular photovoltaic array is connected to the two-section top-hole support rod (22) through a top hinge (23).

4. A collapsible and storable marine disaster prevention photovoltaic structure according to claim 1, characterized in that, The winding and unwinding assembly includes an active traction cable (15). One end of the active traction cable (15) is fixedly connected to the middle of the electric hoist, and the other end of the active traction cable (15) is fixedly connected to the top of the two-section top-hole support rod (22). The two-section top-hole support rod (22) is a rectangular-section vertical rod with a thick upper part and a thin lower part, and a hanging hole is opened at the top for hanging one end of the active traction cable (15).

5. A foldable and collapsible marine disaster prevention photovoltaic structure according to claim 1, characterized in that, The loop-shaped clamping plate (14) is formed by splicing two C-shaped plates. When the photovoltaic panel array is unfolded and operating, the loop-shaped clamping plate (14) is clamped at the two joints of the two-section top-hole support rod (22) to fix the foldable photovoltaic support (2).

6. The foldable and collapsible marine disaster prevention photovoltaic structure according to claim 1, wherein The steel floating box (11) is a cube, and the cross-section of the inner hollow part is rectangular. The steel floating box (11) is entirely welded by thick steel plates.

7. A method for using a foldable and collapsible offshore disaster prevention photovoltaic structure, which is a foldable and collapsible offshore disaster prevention photovoltaic structure according to any one of claims 1-6, characterized in that, Including the following steps: S1. Pre-fold and store the foldable photovoltaic support (2) in the disaster prevention storage box (12) of the floating storage box body (1) to form an overall assembly structure; the center of gravity of the structure sinks, and the floating stability is enhanced, which is suitable for being towed by a tugboat to a designated offshore operation location; S2. After positioning the structure, a plurality of active traction cables (15) are respectively passed through the hanging holes provided at the top of the two-section top-hole support rod (22); the active traction cables (15) are tightened by the electric hoists arranged at the tops of the active traction columns (13) to realize the vertical rise of the two-section top-hole support rod (22); S3. When the two-section top-hole support rod (22) rises to the designated operating height, the loop-shaped clamping plate (14) is clamped at the two joints of the support rod to form structural limit and fixation for it to support the photovoltaic module to carry out operations; S4. Hook the free end of the active traction cable (15) onto the trapezoidal photovoltaic panel (21) and the special-shaped photovoltaic panel (26). By continuously tightening the cable, the photovoltaic modules are gradually deployed under the traction force until a rectangular photovoltaic array is formed and reaches the horizontal operating state. Thereafter, lock the active traction cable to ensure that the photovoltaic panels are in a stable operating state; S5. When receiving a severe weather warning signal, execute the above deployment process in reverse: unlock the traction cable, gradually release the tension, and let the photovoltaic panels fold and retract under the action of gravity; release the retaining clip (14), contract the two-stage top-hole support rod (22) to its initial state, and incorporate the entire photovoltaic module into the disaster prevention storage box (12) to reduce the exposed area at the top.

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