Special cable for connecting offshore photovoltaic panels

Abstract

The utility model relates to the technical field of offshore photovoltaic panel connection cables, and discloses a special cable for offshore photovoltaic panel connection, which comprises a cable sheath, the cable sheath comprises a corrosion-resistant coating, a corrosion-resistant layer and a main body layer, and the corrosion-resistant coating is positioned on the outer surface of the corrosion-resistant layer. According to the utility model, the cable sheath can be fixed and limited through the arrangement of the fixing assembly, the cable sheath is composed of the corrosion-resistant coating, the corrosion-resistant layer and the main body layer, the strength of the cable sheath is ensured, the corrosion-resistant layer has good corrosion resistance and can resist seawater corrosion, the corrosion-resistant coating increases the corrosion resistance of the outside of the corrosion-resistant layer, and the service life of the cable sheath is prolonged. The main body layer ensures the characteristics of the cable sheath, the shielding layer, the loose tube and the heat-resistant layer are adopted to form the cable core protective sheath, the shielding property and the heat insulation property of the cable core protective sheath are ensured, certain pulling resistance is increased, and the pulling resistance core and the pulling resistance net are adopted to form the pulling resistance wire, so that the pulling resistance of the pulling resistance wire is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of marine photovoltaic panel connection cable technology, and in particular to a special cable for connecting marine photovoltaic panels. Background Technology

[0002] Offshore photovoltaic power generation is an emerging energy utilization method and resource development model that uses photovoltaic panels to generate electricity in the ocean. It has the characteristics of less land occupation, which is conducive to optimizing the energy consumption structure and has broad commercial prospects. Offshore photovoltaic foundations can be divided into two types: pile-fixed and floating. Pile-fixed foundations are mainly suitable for near-shore areas, while floating foundations are mainly used in deep sea areas. Due to the strong corrosiveness of seawater and the heavy exposure to wind and sun, the requirements for cables are also very high. Traditional cables have limited corrosion resistance and heat insulation, are easily aged and damaged by external influences, and have low strength and are easily damaged.

[0003] Therefore, those skilled in the art have provided dedicated cables for connecting offshore photovoltaic panels to solve the problems mentioned in the background art. Utility Model Content

[0004] To address the limitations of traditional cables in terms of corrosion resistance and heat insulation, susceptibility to aging and damage due to external influences, low strength, and easy damage, this utility model provides a special cable for connecting marine photovoltaic panels.

[0005] This utility model provides a special cable for connecting offshore photovoltaic panels, adopting the following technical solution:

[0006] A special cable for connecting offshore photovoltaic panels includes a cable sheath comprising a corrosion-resistant coating, a corrosion-resistant layer, and a main body layer. The corrosion-resistant coating is located on the outer surface of the corrosion-resistant layer, and the corrosion-resistant layer is located on the outer surface of the main body layer. An inner core protective sheath is provided within the cable sheath. This protective sheath includes a shielding layer, a loose tube, and a heat-resistant layer. The shielding layer is located on the outer surface of the loose tube, and the heat-resistant layer is located on the inner wall of the loose tube. A tensile-resistant wire is provided within the inner cavity of the cable sheath. This tensile-resistant wire includes a tensile-resistant core and a tensile-resistant mesh. The tensile-resistant core is located on the outer surface of the tensile-resistant mesh. Fixing components are provided on the surface of the cable sheath.

[0007] By adopting the above technical solution, the cable sheath can be fixed and limited by setting fixing components. The cable sheath is composed of a corrosion-resistant coating, a corrosion-resistant layer, and a main body layer, which ensures the strength of the cable sheath. The corrosion-resistant layer has good corrosion resistance and can withstand seawater erosion. The corrosion-resistant coating increases the corrosion resistance of the outer layer. The main body layer ensures the characteristics of the cable sheath. The core protective sheath is composed of a shielding layer, a loose tube, and a heat-resistant layer, which ensures the shielding and heat insulation of the core protective sheath and increases its tensile strength. The tensile strength wire is composed of a tensile core and a tensile mesh, which greatly increases the tensile strength of the tensile wire.

[0008] Optionally, a filling layer is fixedly installed inside the cable sheath, and the core protective sheath and tensile wire are both fixedly connected to the filling layer.

[0009] By adopting the above technical solution, the filler layer can limit the protective sheath of the wire core and the tensile strength wire.

[0010] Optionally, the inner cavity of the wire core protective sheath is provided with connecting cells, and the number of tensile wires is nine.

[0011] By adopting the above technical solution, the nine tensile strength wires increase the tensile strength of the cable.

[0012] Optionally, the fixing component includes a fixing ring, which is fixedly connected to the cable sheath. A support rod is fixedly installed at the bottom of the fixing ring, and a mounting plate is fixedly installed at the bottom of the support rod. Mounting holes are provided around the perimeter of the mounting plate.

[0013] By adopting the above technical solution, bolts can be inserted into the mounting holes to fix the mounting plate, thereby limiting the installation of the cable sheath.

[0014] Optionally, the corrosion-resistant coating is a polyurethane coating with a thickness of 25μm-35μm, the corrosion-resistant layer is a titanium alloy layer, and the main layer is a polytetrafluoroethylene layer.

[0015] By adopting the above technical solutions, the polyurethane coating increases the corrosion resistance and wear resistance of the cable sheath, thus increasing its lifespan. The titanium alloy layer has good strength and superior corrosion resistance, enabling it to withstand harsh environments such as seawater, sea air, and ocean waves, further increasing the cable sheath's service life. The polytetrafluoroethylene layer has good insulation properties, increasing the cable sheath's insulation performance.

[0016] Optionally, the shielding layer is a copper mesh braided layer, and the heat-resistant layer is a silicone rubber layer.

[0017] By adopting the above technical solutions, the copper mesh braided layer increases shielding to avoid external interference, and the silicone rubber layer increases the heat resistance and insulation of the wire core protective sheath to prevent the wire core protective sheath from burning out due to overheating when connected to the battery core.

[0018] Optionally, the tensile core is a steel wire, and the tensile mesh is a nylon woven mesh layer.

[0019] By adopting the above technical solution, the steel wire ensures the strength of the tensile wire, and the nylon braided mesh layer ensures the tensile strength of the tensile wire.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. This utility model can fix and limit the cable sheath by setting a fixing component. The cable sheath is composed of a corrosion-resistant coating, a corrosion-resistant layer and a main body layer, which ensures the strength of the cable sheath. The corrosion-resistant layer has good corrosion resistance and can resist seawater erosion. The corrosion-resistant coating increases the corrosion resistance of the outer surface of the corrosion-resistant layer. The main body layer ensures the characteristics of the cable sheath. The core protective sheath is composed of a shielding layer, a loose tube and a heat-resistant layer, which ensures the shielding and heat insulation of the core protective sheath and increases its tensile strength. The tensile strength wire is composed of a tensile core and a tensile mesh, which greatly increases the tensile strength of the tensile wire.

[0022] 2. This utility model, by setting a filling layer, can limit the movement of the core protective sheath and the tensile strength wires. The nine tensile strength wires increase the tensile strength of the cable. Bolts inserted into the mounting holes can fix the mounting plate, thereby limiting the installation of the cable sheath. The polyurethane coating increases the corrosion resistance and wear resistance of the cable sheath, increasing its lifespan. The titanium alloy layer has good strength and super corrosion resistance, and can withstand harsh environments such as seawater, sea air, and waves, further increasing the service life of the cable sheath. The polytetrafluoroethylene layer has good insulation, increasing the insulation performance of the cable sheath. The copper mesh braiding layer increases shielding and avoids external interference. The silicone rubber layer increases the heat resistance and insulation of the core protective sheath, preventing the core protective sheath from overheating and burning out due to the connection of the battery core. The steel wire ensures the strength of the tensile strength wires, and the nylon braided mesh layer ensures the tensile strength of the tensile strength wires. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is an enlarged structural schematic diagram of point A of this utility model.

[0025] Figure 3 This is an enlarged structural diagram of the cross-section of the cable sheath of this utility model.

[0026] Figure 4 This is an enlarged cross-sectional schematic diagram of the protective sheath of the wire core in this utility model.

[0027] Figure 5 This is a schematic diagram of the enlarged cross-section of the tensile line of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Cable sheath; 101. Corrosion-resistant coating; 102. Corrosion-resistant layer; 103. Main body layer; 2. Fixing components; 201. Fixing ring; 202. Support rod; 203. Mounting plate; 204. Mounting hole; 3. Filler layer; 4. Core protective sheath; 401. Shielding layer; 402. Loose sleeve; 403. Heat-resistant layer; 5. Connecting core; 6. Tensile wire; 601. Tensile core; 602. Tensile mesh. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0031] Example 1:

[0032] Please refer to Figure 3-5 A special cable for connecting offshore photovoltaic panels includes a cable sheath 1. The cable sheath 1 comprises a corrosion-resistant coating 101, a corrosion-resistant layer 102, and a main body layer 103. The corrosion-resistant coating 101 is located on the outer surface of the corrosion-resistant layer 102, and the corrosion-resistant layer 102 is located on the outer surface of the main body layer 103. The corrosion-resistant coating 101 is a polyurethane coating with a thickness of 25μm-35μm. The corrosion-resistant layer 102 is a titanium alloy layer. The main body layer 103 is a polytetrafluoroethylene layer. A core protective sheath 4 is provided inside the cable sheath 1. The core protective sheath 4 includes a shielding layer 401, a loose tube 402, and a heat-resistant layer 403. The shielding layer 401 is located on the outer surface of the loose tube 402, and the heat-resistant layer 403 is located on the inner wall of the loose tube 402. The shielding layer 401 is a copper mesh braided layer, and the heat-resistant layer 403 is a silicone rubber layer. The inner cavity of the cable sheath 1 is provided with an anti-tensile wire 6. The anti-tensile wire 6 includes an anti-tensile core 601 and an anti-tensile mesh 602. The anti-tensile core 601 is located on the outer surface of the anti-tensile mesh 602. The anti-tensile core 601 is a steel wire, and the anti-tensile mesh 602 is a nylon braided mesh layer.

[0033] In this embodiment: the cable sheath 1 is composed of a corrosion-resistant coating 101, a corrosion-resistant layer 102, and a main body layer 103, which ensures the strength of the cable sheath 1. The corrosion-resistant layer 102 has good corrosion resistance and can withstand seawater erosion. The corrosion-resistant coating 101 increases the external corrosion resistance of the corrosion-resistant layer 102. The main body layer 103 ensures the characteristics of the cable sheath 1. The core protective sheath 4 is composed of a shielding layer 401, a loose tube 402, and a heat-resistant layer 403, which ensures the shielding and heat insulation of the core protective sheath 4 and increases its tensile strength. The tensile strength wire 6 is composed of a tensile core 601 and a tensile mesh 602, which greatly increases the tensile strength of the tensile strength wire 6.

[0034] Example 2:

[0035] Reference Figure 1-2 A filling layer 3 is fixedly installed inside the cable sheath 1. The core protective sheath 4 and the tensile wire 6 are both fixedly connected to the filling layer 3. The core protective sheath 4 is provided with a connecting core 5 inside the cavity. There are nine tensile wires 6. A fixing component 2 is provided on the surface of the cable sheath 1. The fixing component 2 includes a fixing ring 201. The fixing ring 201 is fixedly connected to the cable sheath 1. A support rod 202 is fixedly installed at the bottom of the fixing ring 201. A mounting plate 203 is fixedly installed at the bottom of the support rod 202. Mounting holes 204 are opened around the mounting plate 203.

[0036] In this embodiment: the filling layer 3 can limit the core protective sheath 4 and the tensile strength line 6. The nine tensile strength lines 6 increase the tensile strength of the cable. By setting the fixing component 2 and inserting bolts into the mounting hole 204, the mounting plate 203 can be fixed, thereby limiting the installation of the cable sheath 1.

[0037] The implementation principle of this utility model is as follows: In use, the corrosion-resistant coating 101 increases the corrosion resistance and wear resistance of the cable sheath 1, thereby increasing the service life of the cable sheath 1. The corrosion-resistant layer 102 has good strength and super corrosion resistance, and can withstand harsh environments such as seawater, sea air, and sea waves, further increasing the service life of the cable sheath 1. The main body layer 103 has good insulation, increasing the insulation performance of the cable sheath 1. The shielding layer 401 increases the shielding performance and avoids external interference. The heat-resistant layer 403 increases the heat resistance and insulation of the core protective sheath 4, preventing the connecting core 5 from overheating and burning the core protective sheath 4. The tensile core 601 ensures the strength of the tensile wire 6, and the tensile mesh 602 ensures the tensile strength of the tensile wire 6. Bolts are inserted into the mounting hole 204 to fix the mounting plate 203, thereby limiting the installation of the cable sheath 1.

[0038] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. Special cable for the connection of photovoltaic panels at sea, comprising a cable sheath (1), characterized in that: The cable skin (1) comprises a corrosion-resistant coating layer (101), a corrosion-resistant layer (102) and a main body layer (103), the corrosion-resistant coating layer (101) is located on the outer surface of the corrosion-resistant layer (102), the corrosion-resistant layer (102) is located on the outer surface of the main body layer (103), the inner cavity of the cable skin (1) is provided with a core protection skin (4), the core protection skin (4) comprises a shielding layer (401), a loose tube (402) and a heat-resistant layer (403), the shielding layer (401) is located on the outer surface of the loose tube (402), and the heat-resistant layer (403) is located on the inner wall of the loose tube (402), the inner cavity of the cable skin (1) is provided with a pull-resistant wire (6), the pull-resistant wire (6) comprises a pull-resistant core (601) and a pull-resistant net (602), the pull-resistant core (601) is located on the outer surface of the pull-resistant net (602), and the surface of the cable skin (1) is provided with a fixing assembly (2).

2. A dedicated cable for connection of offshore photovoltaic panels according to claim 1, characterized in that: The inner cavity of the cable skin (1) is fixedly installed with a filling layer (3), and the core protection skin (4) and the pull-resistant wire (6) are fixedly connected with the filling layer (3).

3. The special cable for offshore PV panel connection according to claim 1, characterized in that: The inner cavity of the core protection skin (4) is provided with a connected electric core (5), and the number of the pull-resistant wire (6) is nine.

4. The special cable for offshore PV panel connection according to claim 1, characterized in that: The fixing assembly (2) comprises a fixing ring (201), the fixing ring (201) is fixedly connected with the cable skin (1), a supporting rod (202) is fixedly installed at the bottom of the fixing ring (201), an installation plate (203) is fixedly installed at the bottom of the supporting rod (202), and installation holes (204) are formed in the periphery of the installation plate (203).

5. The special cable for offshore PV panel connection according to claim 1, characterized in that: The corrosion-resistant coating layer (101) is a polyurethane coating layer, the thickness of the corrosion-resistant coating layer (101) is 25-35μm, the corrosion-resistant layer (102) is a titanium alloy layer, and the main body layer (103) is a polytetrafluoroethylene layer.

6. The special cable for offshore PV panel connection according to claim 1, characterized in that: The shielding layer (401) is a copper mesh woven layer, and the heat-resistant layer (403) is a silicone rubber layer.

7. The special cable for offshore PV panel connection according to claim 1, characterized in that: The pull-resistant core (601) is a steel wire, and the pull-resistant net (602) is a nylon woven net layer.

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