An offshore photovoltaic power collection line cable intermediate joint operation and maintenance platform

Abstract

The present invention discloses an operation and maintenance platform for an intermediate joint of an offshore photovoltaic power collection line cable, which belongs to the field of offshore photovoltaic operation and maintenance technology, and can solve the problem that the existing offshore photovoltaic system is not convenient for the construction, inspection and maintenance of the intermediate joint of the cable, resulting in great difficulty in the construction and operation and maintenance of the intermediate joint of the cable, and low operation efficiency. The platform includes: a frame, fixed to the bottom of the photovoltaic grid and located inside the photovoltaic grid; a grid plate, connected to the top of the frame, and its top surface is used to support the cable; a fixed tool, arranged on the top surface of the grid plate, and used to fix the intermediate joint of the cable; and an inspection ladder, arranged below the frame, and its top end is connected to the inspection entrance of the frame. The present invention is used for the construction, inspection and maintenance of the intermediate joint of the cable.

Description

Technical Field

[0001] The invention relates to an offshore photovoltaic power collection line cable intermediate joint operation and maintenance inspection platform, belonging to the technical field of offshore photovoltaic operation and maintenance. Background Art

[0002] In offshore photovoltaic systems, cable intermediate joints are important components for connecting cables, and their operating conditions are directly related to the safety of the collection lines. Therefore, regular inspection and maintenance of cable intermediate joints is the key to ensuring the stable operation of offshore photovoltaic systems.

[0003] Cable intermediate joints are usually installed on offshore photovoltaic brackets at a high distance from sea level. However, the working space on offshore photovoltaic brackets is limited, which is not convenient for the construction, inspection and maintenance of cable intermediate joints. As a result, the construction and operation and maintenance of cable intermediate joints are difficult and the operation efficiency is low, which is not conducive to ensuring the structural safety and operational stability of cable intermediate joints. Summary of the invention

[0004] The present invention provides an offshore photovoltaic collector line cable intermediate joint operation and maintenance platform, which can solve the problem that the existing offshore photovoltaic system is not convenient for the construction, inspection and maintenance of the cable intermediate joints, resulting in great difficulty in the construction and operation and maintenance of the cable intermediate joints and low operation efficiency.

[0005] The present invention provides an offshore photovoltaic power collection line cable intermediate joint operation and maintenance platform, the platform comprising:

[0006] A frame is fixed to the bottom of the photovoltaic grid and is located inside the photovoltaic grid;

[0007] a grid plate connected to the top of the frame, the top surface of which is used to support the cables;

[0008] A fixing tool, arranged on the top surface of the grid plate, for fixing the intermediate joint of the cable;

[0009] A maintenance ladder is arranged below the frame, and a top end thereof is communicated with a maintenance entrance of the frame.

[0010] Optionally, the top surface of the grid plate is an inclined surface.

[0011] Optionally, the fixing tool includes a plurality of fixing structures, each of the fixing structures corresponds to the cable intermediate joints one by one, and the fixing structures are used to fix the corresponding cable intermediate joints.

[0012] Optionally, the fixing structure comprises:

[0013] A horizontal plate, parallel to the horizontal plane, one end of which is connected to the top surface of the grid plate;

[0014] A vertical plate, the top end of which is connected to an end of the horizontal plate away from the grid plate, and the bottom end of which is connected to the top surface of the grid plate;

[0015] The joint box is connected to the transverse plate; the cable intermediate joint is fixed inside the joint box.

[0016] Optionally, the framework includes:

[0017] A plurality of main beams are fixed at the bottom of the photovoltaic grid;

[0018] A plurality of secondary beams are erected on the plurality of main beams and cross-distributed with the plurality of main beams to support the grid plates.

[0019] Optionally, the platform further includes:

[0020] A plurality of columns, the top ends of which are connected to the bottom of the frame, and the bottom ends of which are connected to the bottom of the photovoltaic grid.

[0021] Optionally, one end of the grid plate is connected to an operation and maintenance channel of the photovoltaic grid.

[0022] Optionally, the platform further includes:

[0023] A horseway has one end connected to one end of the grille plate and the other end connected to the operation and maintenance entrance of the operation and maintenance channel.

[0024] Optionally, the platform further includes:

[0025] Guardrails are arranged at the edges of the grille plate and the horseway.

[0026] The beneficial effects that the present invention can produce include:

[0027] The present invention arranges a frame, a grid plate and a fixing tool in the photovoltaic grid, and can use the grid plate to support the cable, and use the fixing tool to fix the cable intermediate joint, so as to form an open, stable and safe working space, which is convenient for construction and operation and maintenance personnel to construct, inspect and maintain the cable intermediate joint in the complex and changeable environment at sea, which is conducive to reducing the difficulty of operation and improving the operation efficiency, thereby effectively ensuring the stable operation of the offshore photovoltaic system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the structure of an offshore photovoltaic power collection line cable intermediate joint operation and maintenance platform provided by an embodiment of the present invention;

[0029] Figure 2 The embodiment of the present invention provides Figure 1 The main view of

[0030] Figure 3A schematic diagram of the installation of an offshore photovoltaic power collection line cable intermediate joint operation and maintenance platform provided by an embodiment of the present invention;

[0031] Figure 4 The embodiment of the present invention provides Figure 3 main view.

[0032] Reference numerals:

[0033] 1. Main beam; 2. Secondary beam; 3. Guardrail; 4. Maintenance entrance; 5. Fixed structure; 6. Horseway; 7. Operation and maintenance entrance; 8. Column; 9. Maintenance ladder; 10. Grille plate; 11. Support piles; 12. Photovoltaic grid; 13. Operation and maintenance channel. DETAILED DESCRIPTION

[0034] The present invention is described in detail below in conjunction with embodiments, but the present invention is not limited to these embodiments.

[0035] The embodiment of the present invention provides an offshore photovoltaic power collection line cable intermediate joint operation and maintenance platform, such as Figures 1 to 4 As shown, the platform includes:

[0036] The frame is fixed to the bottom of the photovoltaic grid 12 and is located inside the photovoltaic grid 12;

[0037] A grid plate 10 is connected to the top of the frame, and its top surface is used to support the cables;

[0038] A fixing tool is provided on the top surface of the grid plate 10 and is used to fix the intermediate joint of the cable;

[0039] An inspection ladder 9 is arranged below the frame, and a top end thereof is communicated with an inspection entrance 4 of the frame.

[0040] Specifically, the top of the photovoltaic grid 12 is used to lay photovoltaic panels. In an offshore photovoltaic system, the photovoltaic grid 12 is usually installed on support piles 11, which are vertically fixed on the seabed to provide stable support for the photovoltaic grid 12, and the maintenance ladder 9 is fixed on the support piles 11.

[0041] Specifically, the photovoltaic grid 12 can be a bolt ball grid.

[0042] In practice, in order to maximize the use of solar energy, it is usually necessary to adjust the photovoltaic grid 12 to an inclined setting according to the direction of sunlight, so that the photovoltaic panels laid on the top of the photovoltaic grid 12 can maintain a preset inclination angle, thereby improving the power generation efficiency of the photovoltaic panels. When the photovoltaic grid 12 is inclined, the frame and the grid plate 10 are also inclined accordingly.

[0043] Specifically, the top surface of the grid plate 10 is an inclined surface.

[0044] At this time, if the cable intermediate joint is directly installed on the inclined grid plate 10, since the cable intermediate joint has a tendency to slide down along the top surface of the grid plate 10, it is not conducive to its stable installation. Therefore, this embodiment can achieve the horizontal setting of the cable intermediate joint by setting a fixed tool.

[0045] Specifically, the fixing tool may include a plurality of fixing structures 5, the fixing structures 5 correspond to the cable intermediate joints one by one, and the fixing structures 5 are used to fix the corresponding cable intermediate joints.

[0046] Specifically, the fixing structure 5 may include:

[0047] A horizontal plate, parallel to the horizontal plane, one end of which is connected to the top surface of the grid plate 10;

[0048] A vertical plate, the top end of which is connected to the end of the horizontal plate away from the grid plate 10, and the bottom end of which is connected to the top surface of the grid plate 10;

[0049] The junction box is connected to the horizontal plate; the intermediate joint of the cable is fixed inside the junction box.

[0050] Since the cross plate and the joint box are both set horizontally, the cable intermediate joint inside the joint box can be set horizontally. At this time, the cables at both ends of the cable intermediate joint are also in a horizontal state, which not only increases the installation stability of the cable intermediate joint, but also facilitates the maintenance of the cable intermediate joint. At the same time, since the cable intermediate joint is fixed inside the joint box, it can effectively prevent the displacement of the cable intermediate joint during operation, which may affect its electrical performance and safety performance. In addition, it can also prevent the erosion and damage of the cable intermediate joint caused by the complex and changeable environment at sea and other factors, thereby ensuring the safe and stable operation of the offshore photovoltaic system.

[0051] Specifically, the framework may include:

[0052] A plurality of main beams 1 are fixed at the bottom of the photovoltaic grid 12;

[0053] A plurality of secondary beams 2 are erected on the plurality of main beams 1 and cross-distributed with the plurality of main beams 1 to support the grid plates 10 .

[0054] Specifically, the platform may also include:

[0055] A plurality of columns 8 have their top ends connected to the bottom of the frame, and their bottom ends connected to the bottom of the photovoltaic grid 12 .

[0056] In this embodiment, the bottom end of the column 8 and the bottom of the photovoltaic grid 12 can be connected by bolts or by welding.

[0057] Specifically, one end of the grid plate 10 is connected to the operation and maintenance channel 13 of the photovoltaic grid 12 .

[0058] The operation and maintenance channel 13 of the photovoltaic grid 12 is used by operation and maintenance personnel to perform regular inspection and maintenance on the photovoltaic grid 12 and equipment such as inverters installed on the photovoltaic grid 12.

[0059] Specifically, the platform may also include:

[0060] One end of the horseway 6 is connected to one end of the grille plate 10 , and the other end thereof is communicated with the operation and maintenance entrance 7 of the operation and maintenance channel 13 .

[0061] By providing the horseway 6, the operation and maintenance personnel can easily enter the operation and maintenance passage 13 from the grid plate 10, and complete the inspection and maintenance of the cable intermediate joint and the photovoltaic grid 12 in turn, which is conducive to improving the efficiency of the inspection and maintenance work.

[0062] Specifically, the platform may also include:

[0063] The guardrail 3 is arranged at the edge of the grille plate 10 and the horseway 6, which can effectively ensure the safety of the operation and maintenance personnel.

[0064] Specifically, the platform may also include:

[0065] The guard cage is sleeved on the maintenance ladder 9, and its top end is communicated with the maintenance entrance 4 of the frame.

[0066] Specifically, the platform may also include:

[0067] A plurality of hoops are clamped at different heights on the support pile 11 to fix the maintenance ladder 9 and the guard cage on the support pile 11 .

[0068] By arranging a frame, a grid plate 10 and a fixing tool in the photovoltaic grid 12, the present invention can use the grid plate 10 to support the cable, and use the fixing tool to fix the cable intermediate joint, so as to form an open, stable and safe working space, which is convenient for construction and operation and maintenance personnel to construct, inspect and maintain the cable intermediate joint in the complex and changeable environment at sea, which is conducive to reducing the difficulty of operation and improving the operation efficiency, thereby effectively ensuring the stable operation of the offshore photovoltaic system.

[0069] The present invention has fewer types of components, and the frame, grid plate 10, horseway 6 and other structures can be transported to the site for assembly after being manufactured in the processing plant, thereby greatly reducing the amount of offshore operations. In addition, the structural materials of the present invention can all be made of steel, and the structure has strong rigidity and good stability, which greatly improves the safety and convenience of cable intermediate joint inspection and maintenance.

[0070] The above are only a few embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. An offshore photovoltaic power collection line cable intermediate joint operation and maintenance platform, characterized in that: The platform includes: A frame is fixed to the bottom of the photovoltaic grid and is located inside the photovoltaic grid; a grid plate connected to the top of the frame, the top surface of which is used to support the cables; A fixing tool, arranged on the top surface of the grid plate, for fixing the intermediate joint of the cable; A maintenance ladder is arranged below the frame, and a top end thereof is connected to a maintenance entrance of the frame; The top surface of the grid plate is an inclined surface; The fixing tool comprises a plurality of fixing structures, each of which corresponds to the cable intermediate joints one by one, and is used to fix the corresponding cable intermediate joints; The fixed structure comprises: A horizontal plate, parallel to the horizontal plane, one end of which is connected to the top surface of the grid plate; A vertical plate, the top end of which is connected to an end of the horizontal plate away from the grid plate, and the bottom end of which is connected to the top surface of the grid plate; The joint box is connected to the transverse plate; the cable intermediate joint is fixed inside the joint box.

2. The platform according to claim 1, characterized in that The framework includes: A plurality of main beams are fixed at the bottom of the photovoltaic grid; A plurality of secondary beams are erected on the plurality of main beams and cross-distributed with the plurality of main beams to support the grid plates.

3. The platform according to claim 1, characterized in that: The platform also includes: A plurality of columns, the top ends of which are connected to the bottom of the frame, and the bottom ends of which are connected to the bottom of the photovoltaic grid.

4. The platform according to claim 1, characterized in that: One end of the grid plate is connected to the operation and maintenance channel of the photovoltaic grid.

5. The platform according to claim 4, characterized in that The platform also includes: A horseway has one end connected to one end of the grille plate and the other end connected to the operation and maintenance entrance of the operation and maintenance channel.

6. The platform according to claim 5, characterized in that The platform also includes: Guardrails are arranged at the edges of the grille plate and the horseway.

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