Angle-variable floating type offshore photovoltaic platform floating body module connecting device
By designing a variable-angle floating module connection device, the connection reliability and disassembly problems of offshore photovoltaic platforms in harsh environments are solved, and reliable connection and flexible assembly of floating modules are achieved, adapting to changes in the marine environment and reducing construction difficulty and cost.
Patent Information
- Application Number
- CN202510800411.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2025-09-16
AI Technical Summary
The floating module connection devices of existing floating offshore photovoltaic platforms cannot operate reliably in harsh marine environments and are difficult to disassemble and assemble flexibly, which limits the commercial promotion of the platforms.
A variable-angle floating body module connection device for a floating offshore photovoltaic platform is designed. The device adopts a connection device sheet, a floating body connection pin and a sheet body connection pin. The threaded structure and the limit surface are used to achieve reliable connection and angle adjustment of the floating body module. The limit spring and the flange block are used to prevent falling off, realizing flexible disassembly and assembly.
It improves the reliability and flexibility of the connection of floating body modules, adapts to harsh marine environments, reduces the difficulty of offshore construction, facilitates mass production and platform reconstruction, reduces the stress on the floating body, and realizes flexible disassembly and installation of the platform.
Smart Images
Figure CN120646167A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of floating offshore photovoltaic platforms, and in particular to a variable-angle floating body assembly connection device for floating offshore photovoltaic platforms. Background Art
[0002] As an emerging solar power generation platform, floating offshore photovoltaic platforms hold enormous development potential, leveraging the vast ocean's vast expanse and abundant sunlight resources. However, due to the complex and volatile marine environment, existing, mature floating photovoltaic technologies developed for inland waters struggle to operate reliably in this environment. One of the key bottlenecks hindering the further development of floating offshore photovoltaic technology is ensuring the long-term reliability of floating photovoltaic structures at sea. The connection between the components of the floating structures is also a key issue that needs to be addressed.
[0003] Existing floating offshore photovoltaic platforms primarily include semi-submersible offshore photovoltaic platforms based on buoy foundations, buoy array offshore photovoltaic platforms, multi-buoy offshore photovoltaic platforms, separate-float-support floating platforms, and hexagonal floating platforms. The first types of platforms with buoy foundations have buoys as their floating foundations; separate-float-support floating platforms have frame-like foundations, while hexagonal floating platforms have lattice-like structures. These platforms utilize a monolithic frame connection, lacking inter-floating connection devices. This is costly and inflexible, preventing flexible disassembly and assembly, thus preventing commercialization. Inland river floating photovoltaic platforms, on the other hand, feature flexible disassembly and assembly between floating modules and a mature connection system, making them commercially viable.
[0004] The ocean's wind, wave, and current environment is significantly harsher than that of inland waters. High winds, waves, and currents place higher demands on floating offshore photovoltaic platforms and the connections between them. The connections used on inland floating photovoltaic platforms are not suitable for use at sea. Currently, floating offshore photovoltaic systems have yet to achieve large-scale commercial deployment globally. While domestic research on demonstration platforms is underway, the highest level of development internationally is limited to a 5MW floating photovoltaic power station. However, these platforms and photovoltaic power stations cannot be flexibly disassembled and assembled. One of the technical challenges is the connections between the floating modules.
[0005] Therefore, it is necessary to develop a new type of floating offshore photovoltaic platform floating module connection device to achieve flexible disassembly and assembly. Summary of the Invention
[0006] Purpose of the invention: In view of the shortcomings and defects of the existing technology, the present invention provides a variable-angle floating module connection device for a floating offshore photovoltaic platform, which improves the reliability of module connection, facilitates mass production, provides a rigid connection between platform modules, and realizes flexible disassembly and assembly.
[0007] Technical solution: The present invention provides a variable-angle floating offshore photovoltaic platform float module connection device, which is characterized in that it includes a connection device sheet, a float connection pin and a sheet connection pin; the number of the connection device sheets is 2, and the connection device sheet is provided with a float connection pin threaded hole, a sheet connection pin hole and a variable angle limit surface; the end of the float connection pin is provided with an end flange, the outside of the end flange is provided with a lifting handle, and the part of the float connection pin embedded in the connection device sheet is a threaded structure; the end of one side of the sheet connection pin is provided with a flange, and the other side of the sheet connection pin is provided with 4 flange stops, and the flange stops are used in conjunction with gaskets, limit springs, and open-hole and slotted flanges.
[0008] Wherein, the connecting device sheet is a casting formed by an integrated molding process.
[0009] The two connecting device sheets have the same shape, and each connecting device sheet is symmetrically arranged along the middle plane.
[0010] The two connecting device sheets are centrally symmetrical when assembled, connected by a rotating shaft, and fastened by a set of rotating shaft fasteners to prevent the rotating shaft from slipping.
[0011] Among them, the sheet connecting pin connects the floating body block and the connecting device, the part where the sheet connecting pin enters the connecting device sheet is designed to be a threaded structure, the connecting device sheet corresponds to the pin opening, and the hole is a threaded structure.
[0012] Wherein, the hole and slot flange is provided with 4 holes and 4 shallow slots.
[0013] The openings and the shallow grooves are arranged alternately at 45 degrees.
[0014] The opening allows the flange to pass through the flange stopper of the sheet connecting the pin shaft. After rotation, the flange is limited by the flange stopper through the shallow groove.
[0015] The limit spring prevents the flange from rotating and falling off.
[0016] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: The present invention improves the reliability of module connection: The floating module connection device of the floating offshore photovoltaic platform formed by this technical solution can be embedded in the floating module and connected to the float through a pin, which can improve the connection reliability problem between the floating module-connection device-floating module and can adapt to more severe marine environments. Convenient for mass production: The floating module connection device of the floating offshore photovoltaic platform formed by this technical solution has uniform specifications and shapes of various parts, which can be made into standard parts for mass production. It can be assembled in advance to reduce the difficulty of offshore construction and facilitate the flexible reconstruction of the platform; It provides a rigid connection between platform modules to achieve flexible disassembly and assembly: The floating module connection device of the floating offshore photovoltaic platform formed by this technical solution can allow the connected floating modules to rotate within a certain angle range, effectively solving the problem of rigid connection of platform modules and reducing the stress on platform floating modules. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the structure of the decomposed state of the present invention;
[0018] Figure 2 This is a schematic diagram of the main structure of the present invention in a decomposed state;
[0019] Figure 3 This is a schematic diagram of the structure of the present invention in a decomposed state viewed from above;
[0020] Figure 4 This is a schematic side view of the structure of the present invention in a decomposed state;
[0021] Figure 5 This is a schematic structural diagram of a hole and slotted flange according to the present invention;
[0022] Figure 6 It is a structural schematic diagram of the assembled state of the present invention;
[0023] Figure 7 It is a schematic diagram of the rotating structure of the present invention in an assembled state;
[0024] In the figure, 1 is the connecting device sheet; 2 is the floating body connecting pin; 3 is the sheet body connecting pin; 4 is the floating body connecting pin threaded hole; 5 is the sheet body connecting pin hole; 6 is the variable angle limit surface; 7 is the lifting handle; 8 is the threaded structure; 9 is the end flange; 10 is the flange; 11 is the gasket; 12 is the limit spring; 13 is the open hole and slotted flange; 14 is the flange stopper; 15 is the open hole; 16 is the shallow slot. DETAILED DESCRIPTION
[0025] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.
[0026] The variable-angle floating offshore photovoltaic platform floating body module connection device of the present invention is composed of a plurality of parts assembled together, mainly including two connection device sheets 1, four sheet connection pins 3, a rotating shaft and its fasteners. The fasteners include a number of gaskets 11, a limit spring 12 and a limit sheet. The connection device sheet 1 is formed by an integrated molding process and is a casting. The two sheets have the same shape, and each sheet is designed symmetrically along the middle surface. The two connection device sheets 1 are centrally symmetrical when assembled, connected by a rotating shaft, and fastened by a set of rotating shaft fasteners to prevent the rotating shaft from slipping. The floating body module and the connection device are connected by the sheet connection pin 3. The sheet connection pin 3 enters the connection device sheet part and is designed to be a threaded structure. The sheet corresponding to the pin opening is also a threaded structure.
[0027] The connection device of the present invention comprises a connection device plate 1, a floating body connection pin 2, and a plate body connection pin 3. The connection device plates 1 comprise two plates, each provided with a threaded hole 4 for the floating body connection pin, a hole 5 for the plate body connection pin, and a variable-angle stop surface 6. The end of the floating body connection pin 2 is provided with an end flange 9, and a lifting handle 7 is provided on the outer side of the end flange 9. The portion where the floating body connection pin 2 engages with the connection device plate 1 is provided with a threaded structure 8. The sheet body is connected to the pin shaft 3, and a flange 10 is provided on one end, and four flange stops 14 are provided on the other side, which are used in conjunction with a gasket 11, a limit spring 12 and a hole and slotted flange 13; wherein, the hole and slotted flange 13 is provided with four openings 15 and four shallow slots 16, and the openings 15 and the shallow slots 16 are arranged alternately at 45°. The openings 15 allow the flange to pass through the flange stopper 14 of the sheet body connecting the pin shaft 3. After rotation, the flange 10 is limited by the stopper 14 through the shallow slot 16, and the limit spring 12 can prevent the flange 10 from rotating and falling off.
[0028] The angle of the connection device of the present invention is variable: the two pieces of the floating body assembly connection device of the floating offshore photovoltaic platform are provided with limiting surfaces, which can rotate around the connection axis within a certain angle range, so that the connected floating body can adapt to the ups and downs of the waves and passively adjust its posture, reduce the impact of wave loads, and improve the force on the platform floating body.
[0029] The present invention adopts a floating body connecting pin: the floating body connecting pin of the present invention is provided with an end flange, a lifting handle, and a thread. The end flange can limit the pin to prevent the pin from excessively entering the floating body and the connecting device sheet. The lifting handle facilitates the transportation and installation of the floating body connecting pin. The thread on the pin matches the thread of the opening of the connecting device sheet, which can realize the connection and fixation between the floating body module and the connecting device of the floating offshore photovoltaic platform.
[0030] The present invention adopts a sheet connecting pin and fastening accessories: an end flange is provided at one end of the sheet connecting pin, and a limit block is provided on the other end of the shaft. In combination with fasteners (gasket, limit spring, open hole and slotted flange), a reliable connection between the two sheets of the connecting device can be achieved. The open hole and slotted flange can also be loosened and tightened by radially pushing and rotating it to achieve disassembly of the connecting device.
[0031] The present invention improves the ability to resist waves: This technical solution can achieve passive posture adjustment within a certain range according to the ups and downs of waves by rotating the two pieces of the floating body assembly connection device of the floating offshore photovoltaic platform around the connection axis, thereby reducing the impact of wave loads and improving the force on the floating body.
[0032] The present invention facilitates installation and disassembly at sea: this technical solution can realize the installation and disassembly between the connecting device and the floating body module of the floating offshore photovoltaic platform, and can also realize the connection and disassembly of the connecting device itself. The installation and disassembly between the connecting device and the floating body module of the floating offshore photovoltaic platform is achieved by rotating the floating body connection pin, and the installation and disassembly of the connecting device is achieved by installing or removing the sheet connection pin, which is convenient for disassembly. This technical solution is used for the connection between local modules of the floating offshore photovoltaic platform, and can be flexibly assembled into offshore floating photovoltaic platforms of different sizes and shapes. When the platform needs to be disassembled, it can also be flexibly disassembled into platform modules by releasing the pin connection, which is convenient for maintenance, replacement and emergency disposal.
Claims
1. A variable-angle floating photovoltaic platform floating body module connection device, characterized by: The invention comprises a connecting device sheet (1), a floating body connecting pin (2) and a sheet body connecting pin (3); the number of the connecting device sheets (1) is 2, and the connecting device sheet (1) is provided with a floating body connecting pin threaded hole (4), a sheet body connecting pin hole (5) and a variable angle limit surface (6); the end of the floating body connecting pin (2) is provided with an end flange (9), the outer side of the end flange (9) is provided with a lifting handle (7), and the part of the floating body connecting pin (2) embedded in the connecting device sheet (1) is a threaded structure (8); the end of one side of the sheet body connecting pin (3) is provided with a flange (10), and the other side of the sheet body connecting pin (3) is provided with four flange blocks (14), and the flange blocks (14) are used in conjunction with a gasket (11), a limit spring (12) and an open hole and slot flange (13).
2. The variable-angle floating offshore photovoltaic platform buoyancy module connection device according to claim 1 is characterized by: The connecting device sheet (1) is a casting formed by an integrated molding process.
3. The variable-angle floating offshore photovoltaic platform buoyancy module connection device according to claim 1 is characterized by: The two connecting device sheets (1) have the same shape, and each connecting device sheet (1) is symmetrically arranged along the middle surface.
4. The variable-angle floating offshore photovoltaic platform buoyancy module connection device according to claim 3 is characterized by: The two connecting device sheets (1) are centrally symmetrical when assembled, connected by a rotating shaft, and fastened by a set of rotating shaft fasteners to prevent the rotating shaft from slipping.
5. The variable-angle floating offshore photovoltaic platform buoyancy module connection device according to claim 1 is characterized by: The sheet connecting pin (3) connects the floating body block and the connecting device. The portion where the sheet connecting pin (3) enters the connecting device sheet (1) is designed as a threaded structure (8). The connecting device sheet (1) has a hole corresponding to the pin, and the hole is a threaded structure.
6. The variable-angle floating offshore photovoltaic platform buoyancy module connection device according to claim 1 is characterized by: The hole and slot flange (13) is provided with four holes (15) and four shallow slots (16).
7. The variable-angle floating offshore photovoltaic platform buoyancy module connection device according to claim 6 is characterized in that: The openings (15) and the shallow slots (16) are arranged alternately at an angle of 45 degrees.
8. The variable-angle floating offshore photovoltaic platform buoyancy module connection device according to claim 7 is characterized in that: The opening (15) allows the flange (10) to pass through the flange stopper (14) of the sheet connecting pin (3). After rotation, the flange (10) is limited by the flange stopper (14) through the shallow groove (16).
9. The variable-angle floating offshore photovoltaic platform buoyancy module connection device according to claim 1, characterized in that: The flange (10) is prevented from rotating and falling off by the limit spring (12).