A wind power optical cable for transmitting wind turbine generator energy and its manufacturing method

Abstract

This invention discloses a wind power optical cable for transmitting power from wind turbine generators and its manufacturing method. The invention relates to the field of wind power optical cables, comprising an outer sheath, an anti-abrasion layer installed within the inner cavity of the outer sheath, an anti-mildew layer installed on the inner wall of the anti-abrasion layer, a moisture-proof layer installed on the inner wall of the anti-mildew layer, a first insulation layer installed on the inner wall of the moisture-proof layer, an isolation layer installed on the inner wall of the first insulation layer, a non-metallic braided layer installed on the inner wall of the isolation layer, an inner sheath layer installed on the inner wall of the non-metallic braided layer, a structural layer installed on the inner wall of the inner sheath layer, and a plastic filler rope filling the inner cavity of the structural layer, with sub-units installed within the inner cavity of the plastic filler rope. This invention provides a wind power optical cable for transmitting power from wind turbine generators and its manufacturing method. This wind power optical cable has low construction difficulty and cost, providing a novel solution for the development of wind energy, and can meet the requirements for use in harsh environments.

Description

Technical Field

[0001] This invention relates to the field of wind power optical cables, and in particular to a wind power optical cable for transmitting power from wind turbine generators and its manufacturing method. Background Technology

[0002] Wind energy, as a renewable energy source, is gaining increasing attention globally. With continuous technological advancements and cost reductions, its application prospects are vast. From an environmental perspective, wind energy is a clean and pollution-free energy source. Its power generation process does not produce greenhouse gases or other harmful substances, helping to reduce dependence on traditional fossil fuels, lower carbon emissions, and address global climate change. From an energy security perspective, wind energy, as a widely distributed energy source, can complement energy supplies across different regions and countries, improving the stability and security of energy supply. Furthermore, wind energy can serve as a peak-shaving power source, compensating for the shortcomings of other energy sources during supply fluctuations. From an economic development perspective, the development of the wind energy industry can drive the development of related equipment manufacturing, installation, and maintenance industries, creating employment opportunities and promoting economic growth. Moreover, with continuous technological advancements and cost reductions, wind energy's competitiveness is constantly increasing, and it is expected to occupy a larger share of the energy market in the future.

[0003] As a clean, renewable, and widely distributed energy source, wind energy has a very broad application prospect. In the future, with continuous technological progress and policy support, wind energy is expected to play a greater role in the energy sector and contribute to sustainable development.

[0004] Existing branched optical cables are generally made of one or more optical fibers, tightly bundled, filled with reinforcing elements to form sub-units, twisted into a cable, and then sheathed. The existing structure of optical cables has poor flexibility. Taking a 24-core branched optical cable as an example, its sub-unit outer diameter is about 2mm, and the overall outer diameter of the optical cable is 14-15mm. The large outer diameter limits its construction scenarios.

[0005] Therefore, it is necessary to propose a wind power optical cable for transmitting wind turbine generators and its preparation method to solve the above problems. Summary of the Invention

[0006] The main objective of this invention is to provide a wind power optical cable for transmitting wind turbine generators and a method for preparing the same, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] An optical cable for transmitting wind energy from a wind turbine generator set includes an outer sheath, an anti-abrasion layer installed in the inner cavity of the outer sheath, an anti-mildew layer installed on the inner wall of the anti-mildew layer, a moisture-proof layer installed on the inner wall of the anti-mildew layer, a first insulation layer installed on the inner wall of the moisture-proof layer, an isolation layer installed on the inner wall of the first insulation layer, a non-metallic braided layer installed on the inner wall of the isolation layer, an inner sheath layer installed on the inner wall of the non-metallic braided layer, and a structural layer installed on the inner wall of the inner sheath layer.

[0009] The inner cavity of the structural layer is filled with plastic filler rope, and a sub-unit is installed in the inner cavity of the plastic filler rope.

[0010] Preferably, the inner cavity of the wear-resistant layer is equipped with steel strip armor and steel wire armor, and a flame-retardant filler layer is installed between the steel strip armor and the steel wire armor.

[0011] Preferably, the subunit includes an outer protective layer, a second insulating layer installed in the inner cavity of the outer protective layer, an antistatic layer installed on the inner wall of the second insulating layer, a sterilization layer installed on the inner wall of the antistatic layer, an asbestos filling layer and a glass fiber filling layer installed on the inner wall of the sterilization layer, a non-metallic reinforcing layer installed on the inner wall of the asbestos filling layer and the glass fiber filling layer, and an optical fiber installed in the inner cavity of the non-metallic reinforcing layer.

[0012] Preferably, the materials of the outer protective layer, the isolation layer, the inner protective layer, and the sub-unit outer protective layer include PVC, PE, neoprene rubber, silicone rubber, and fluoroplastics.

[0013] Preferably, the flame-retardant filler layer is made of aluminum hydroxide, magnesium hydroxide, halogenated flame retardants, phosphorus-based flame retardants, or intumescent flame retardants; the anti-mildew and antibacterial layers are made of copper, silver, titanium dioxide, zinc oxide, quaternary ammonium salt polymers, or chitosan; the abrasion-resistant layer is made of natural rubber, chloroprene rubber, nitrile rubber, PVC, PE, nylon, glass fiber, or aramid fiber; and the moisture-proof layer is made of aluminum foil, lead sheath, TPE, or butyl rubber.

[0014] Preferably, the materials of the first and second insulating layers include PE, PVC, XLPE, fluoroplastics, silicone rubber, and cable paper; the materials of the antistatic layer include carbon black filler, ionic antistatic agent, nonionic antistatic agent, metal fiber, and metal wire braiding material.

[0015] A method for manufacturing a wind power optical cable for transmitting wind turbine energy includes the following steps:

[0016] S1: Material preparation, including outer sheath, abrasion-resistant layer, steel strip armor, steel wire armor, flame-retardant filling layer, anti-mildew layer, moisture-proof layer, first insulation layer, isolation layer, non-metallic braided layer, inner sheath layer, structural layer, plastic filler rope, sub-unit, second insulation layer, antistatic layer, sterilization layer, asbestos filling layer, glass fiber filling layer, non-metallic reinforcing layer, optical fiber, and sub-unit outer protective layer;

[0017] S2: Preparation of outer protective layer, isolation layer, inner and outer protective layers, isolation layer, inner sheath layer, sub-unit outer protective layer, and sub-unit outer protective layer. Prepare raw materials as required, mix them with stabilizers, lubricants, antistatic agents, and flame retardants. Place the mixed material in a twin-screw extruder, start the twin-screw extruder, melt it, and extrude it into the shapes conforming to the outer protective layer, isolation layer, inner and outer protective layers, isolation layer, inner sheath layer, sub-unit outer protective layer, and sub-unit outer protective layer. [The text abruptly ends here, likely due to an incomplete sentence or missing information.] After cooling, the outer sheath, inner and outer protective layers, isolation layer, inner sheath layer, sub-unit outer protective layer, and sub-unit outer protective layer are wound up. After winding, they are inspected, including: visual inspection: checking whether the surfaces of the outer sheath, isolation layer, inner sheath layer, and sub-unit outer protective layer are smooth, and whether there are cracks, bubbles, or pinholes; checking whether the color of the outer sheath, isolation layer, inner sheath layer, and sub-unit outer protective layer is uniform; dimensional inspection: accurately measuring the thickness of the outer sheath, isolation layer, inner sheath layer, and sub-unit outer protective layer. To ensure compliance with prescribed standards, the outer diameters of the cable's outer sheath, isolation layer, inner sheath, and sub-unit outer protective layer are measured. Physical performance testing includes: using a hardness tester to measure the hardness of the materials; testing the tensile strength and elongation at break of the outer sheath, isolation layer, inner sheath, and sub-unit outer protective layer; and using a specific abrasion testing machine to test the abrasion resistance of the outer sheath, isolation layer, inner sheath, and sub-unit outer protective layer. Electrical performance testing involves measuring the insulation resistance of the outer sheath, isolation layer, inner sheath, and sub-unit outer protective layer. Aging performance testing involves placing samples of the cable's outer sheath, isolation layer, inner sheath, and sub-unit outer protective layer in a high-temperature environment for a period of time to simulate long-term heat exposure, and then testing the changes in their physical and electrical properties. Ultraviolet lamps are used to simulate ultraviolet radiation from sunlight to test the light aging resistance of the materials of the outer sheath, isolation layer, inner sheath, and sub-unit outer protective layer. Appropriate chemical aging tests are also conducted based on the chemical substances the cable comes into contact with, including acids, alkalis, and oils.

[0018] S3: Overall fabrication involves installing a non-metallic reinforcing layer on the optical fiber, installing an asbestos filling layer and a glass fiber filling layer on the outer wall of the non-metallic reinforcing layer, installing a sterilization layer on the outer wall of the asbestos filling layer and the glass fiber filling layer, installing an antistatic layer on the outer wall of the sterilization layer, installing a second insulating layer on the outer wall of the antistatic layer, and installing a sub-unit outer protective layer on the outer wall of the second insulating layer, thereby completing the fabrication of the sub-unit.

[0019] The sub-units are installed in the inner cavity of the structural layer, and the plastic filler rope is filled into the remaining space of the inner cavity of the structural layer. The inner sheath layer, non-metallic braided layer, first insulation layer, moisture-proof layer and anti-mildew layer are installed in sequence on the outer wall of the structural layer. The wear-resistant layer is composed of steel strip armor, steel wire armor and flame-retardant filler layer. The wear-resistant layer is installed on the outer wall of the anti-mildew layer. The outer sheath layer is installed on the outer wall of the anti-mildew layer to complete the overall preparation.

[0020] Compared with the prior art, the present invention provides a wind power optical cable for transmitting wind turbine generators and a method for manufacturing the same, which has the following beneficial effects:

[0021] This wind power optical cable for transmitting wind turbine generators and its manufacturing method are presented. The size of this wind power optical cable is reduced by 60% compared with similar products, which reduces the difficulty and cost of construction and provides a brand-new solution for the development of wind energy. It can meet the requirements for use in harsh environments and has excellent mechanical properties.

[0022] The wind power optical cable for transmitting wind turbine generators and its manufacturing method have strong torsional and tensile properties. The sheathed optical cable has excellent physical properties such as high strength, high elastic modulus and high wear resistance. It also has excellent acid and alkali resistance, oil resistance and solvent resistance, and can be used in harsh working conditions. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is the present invention. Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 This is a schematic diagram of the structure of a subunit of the present invention.

[0026] In the diagram: 1. Outer sheath; 2. Abrasion-resistant layer; 3. Steel strip armor; 4. Steel wire armor; 5. Flame-retardant filling layer; 6. Anti-mildew layer; 7. Moisture-proof layer; 8. First insulation layer; 9. Isolation layer; 10. Non-metallic braided layer; 11. Inner sheath layer; 12. Structural layer; 13. Plastic filler rope; 14. Subunit; 15. Second insulation layer; 16. Antistatic layer; 17. Sterilization layer; 18. Asbestos filling layer; 19. Fiberglass filling layer; 20. Non-metallic reinforcing layer; 21. Optical fiber; 22. Subunit outer protective layer. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0028] like Figures 1-3As shown, a wind power optical cable for transmitting wind turbine generator sets includes an outer sheath 1, an anti-abrasion layer 2 installed in the inner cavity of the outer sheath 1, an anti-mildew layer 6 installed on the inner wall of the anti-mildew layer 2, a moisture-proof layer 7 installed on the inner wall of the anti-mildew layer 6, a first insulation layer 8 installed on the inner wall of the moisture-proof layer 7, an isolation layer 9 installed on the inner wall of the first insulation layer 8, a non-metallic braided layer 10 installed on the inner wall of the isolation layer 9, an inner sheath layer 11 installed on the inner wall of the non-metallic braided layer 10, and a structural layer 12 installed on the inner wall of the inner sheath layer 11. The cavity is filled with plastic filler rope 13, and a sub-unit 14 is installed inside the cavity of the plastic filler rope 13. A steel strip armor 3 and a steel wire armor 4 are installed inside the cavity of the anti-wear layer 2. A flame-retardant filler layer 5 is installed between the steel strip armor 3 and the steel wire armor 4. The sub-unit 14 includes a sub-unit outer protective layer 22. A second insulation layer 15 is installed inside the cavity of the sub-unit outer protective layer 22. An antistatic layer 16 is installed on the inner wall of the second insulation layer 15. An antibacterial layer 17 is installed on the inner wall of the antistatic layer 16. An asbestos filler layer 18 and glass are installed on the inner wall of the antibacterial layer 17. The inner walls of the fiberglass filling layer 19, asbestos filling layer 18, and fiberglass filling layer 19 are fitted with a non-metallic reinforcing layer 20. An optical fiber 21 is installed within the inner cavity of the non-metallic reinforcing layer 20. The materials of the outer sheath 1, isolation layer 9, inner sheath 11, and subunit outer protective layer 22 include PVC, PE, neoprene rubber, silicone rubber, and fluoroplastics. The materials of the flame-retardant filling layer 5 include aluminum hydroxide, magnesium hydroxide, halogenated flame retardants, phosphorus-based flame retardants, and intumescent flame retardants. The materials of the anti-mildew layer 6 and the antibacterial layer 17 include copper, silver, and titanium dioxide. The materials of the first insulation layer 8 and the second insulation layer 15 include: zinc oxide, quaternary ammonium salt polymer, and chitosan; the materials of the abrasion-resistant layer 2 include natural rubber, chloroprene rubber, nitrile rubber, PVC, PE, nylon, glass fiber, and aramid fiber; the materials of the moisture-proof layer 7 include aluminum foil, lead sheath, TPE, and butyl rubber; the materials of the first insulation layer 8 and the second insulation layer 15 include PE, PVC, XLPE, fluoroplastics, silicone rubber, and cable paper; the materials of the antistatic layer 16 include carbon black filler, ionic antistatic agent, nonionic antistatic agent, metal fiber, and metal wire braiding material.

[0029] A method for manufacturing a wind power optical cable for transmitting wind turbine energy includes the following steps:

[0030] S1: Material preparation, including outer sheath 1, abrasion-resistant layer 2, steel strip armor 3, steel wire armor 4, flame-retardant filling layer 5, anti-mildew layer 6, moisture-proof layer 7, first insulation layer 8, isolation layer 9, non-metallic braided layer 10, inner sheath layer 11, structural layer 12, plastic filler rope 13, sub-unit 14, second insulation layer 15, antistatic layer 16, sterilization layer 17, asbestos filling layer 18, glass fiber filling layer 19, non-metallic reinforcing layer 20, optical fiber 21, and sub-unit outer protective layer 22.

[0031] S2: Preparation of outer protective layer 1, isolation layer 9, inner and outer protective layers 1, isolation layer 9, inner sheath layer 11, sub-unit outer protective layer 22, and sub-unit outer protective layer 22: Prepare raw materials as required, mix the raw materials with stabilizers, lubricants, antistatic agents, and flame retardants, place the mixed material in a twin-screw extruder, start the twin-screw extruder, melt it, and extrude it into the shape conforming to outer protective layer 1, isolation layer 9, inner and outer protective layers 1, isolation layer 9, inner sheath layer 11, sub-unit outer protective layer 22, and sub-unit outer protective layer 22. The extruded outer protective layer 1... After cooling, the outer sheath 9, inner and outer protective layers 1, inner sheath 11, and sub-unit outer protective layer 22 are wound up. After winding, they are inspected, including: appearance inspection: checking whether the surfaces of outer sheath 1, outer sheath 9, inner sheath 11, and sub-unit outer protective layer 22 are smooth, and whether there are cracks, bubbles, or pinholes; checking whether the color of outer sheath 1, outer sheath 9, inner sheath 11, and sub-unit outer protective layer 22 is uniform; and dimensional inspection: accurately measuring outer sheath 1, outer sheath 9, inner sheath 11, and sub-unit outer protective layer 22. The thickness of layer 2 is ensured to meet the specified standards. The outer diameters of the cable outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 are measured. Physical performance testing: The hardness of the materials of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 is tested using a hardness tester. The tensile strength and elongation at break of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 are also tested. The abrasion resistance of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 is tested using a specific abrasion resistance testing machine. Electrical performance testing: The outer sheath 1... Insulation resistance and aging performance testing of the insulation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22: The cable outer sheath layer 1, insulation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 samples were placed in a high-temperature environment for a period of time to simulate long-term heat exposure. Then, the changes in their physical and electrical properties were tested. The light aging resistance of the materials of the outer sheath layer 1, insulation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 was tested using ultraviolet lamps to simulate ultraviolet radiation from sunlight. The chemical aging tests were also conducted according to the chemical substances that the cable comes into contact with, including acids, alkalis, and oils.

[0032] S3: Overall fabrication: After the non-metallic reinforcing layer 20 is installed on the optical fiber 21, the asbestos filling layer 18 and the glass fiber filling layer 19 are installed on the outer wall of the non-metallic reinforcing layer 20, the sterilization layer 17 is installed on the outer wall of the asbestos filling layer 18 and the glass fiber filling layer 19, the antistatic layer 16 is installed on the outer wall of the sterilization layer 17, the second insulation layer 15 is installed on the outer wall of the antistatic layer 16, and the sub-unit outer protective layer 22 is installed on the outer wall of the second insulation layer 15, thereby completing the fabrication of the sub-unit 14;

[0033] Subunit 14 is installed in the inner cavity of structural layer 12. Plastic filler rope 13 is filled into the remaining space in the inner cavity of structural layer 12. Inner sheath layer 11, non-metallic braided layer 10, first insulation layer 8, moisture-proof layer 7 and anti-mildew layer 6 are sequentially installed on the outer wall of structural layer 12. Wear-resistant layer 2 is formed by steel strip armor 3, steel wire armor 4 and flame-retardant filler layer 5. Wear-resistant layer 2 is installed on the outer wall of anti-mildew layer 6. Outer sheath layer 1 is installed on the outer wall of anti-mildew layer 6 to complete the overall preparation.

[0034] Example 1:

[0035] An optical fiber cable for transmitting wind power from a wind turbine generator set includes an outer sheath 1, an anti-abrasion layer 2 installed in the inner cavity of the outer sheath 1, an anti-mildew layer 6 installed on the inner wall of the anti-mildew layer 2, a moisture-proof layer 7 installed on the inner wall of the anti-mildew layer 6, a first insulation layer 8 installed on the inner wall of the moisture-proof layer 7, an isolation layer 9 installed on the inner wall of the first insulation layer 8, a non-metallic braided layer 10 installed on the inner wall of the isolation layer 9, an inner sheath layer 11 installed on the inner wall of the non-metallic braided layer 10, a structural layer 12 installed on the inner wall of the inner sheath layer 11, a plastic filler rope 13 filled in the inner cavity of the structural layer 12, a sub-unit 14 installed in the inner cavity of the plastic filler rope 13, a steel strip armor 3 and a steel wire armor 4 installed in the inner cavity of the anti-abrasion layer 2, a flame-retardant filler layer 5 installed between the steel strip armor 3 and the steel wire armor 4, and a sub-unit 14 including a sub-unit outer protective layer 22, the inner cavity of which is equipped with a... The system includes a second insulation layer 15, an antistatic layer 16 installed on the inner wall of the second insulation layer 15, a sterilization layer 17 installed on the inner wall of the antistatic layer 16, an asbestos filling layer 18 and a glass fiber filling layer 19 installed on the inner wall of the sterilization layer 17, a non-metallic reinforcing layer 20 installed on the inner wall of the asbestos filling layer 18 and the glass fiber filling layer 19, and an optical fiber 21 installed in the inner cavity of the non-metallic reinforcing layer 20. The outer sheath 1, the isolation layer 9, the inner sheath layer 11, and the subunit outer protective layer 22 are made of chloroprene rubber. The flame-retardant filling layer 5 is made of halogenated flame retardants, phosphorus-based flame retardants, and intumescent flame retardants. The anti-mildew layer 6 and the sterilization layer 17 are made of chitosan. The anti-wear layer 2 is made of aramid fiber. The moisture-proof layer 7 is made of butyl rubber. The first insulation layer 8 and the second insulation layer 15 are made of fluoroplastics. The antistatic layer 16 is made of carbon black filler.

[0036] A method for manufacturing a wind power optical cable for transmitting wind turbine energy includes the following steps:

[0037] S1: Material preparation, including outer sheath 1, abrasion-resistant layer 2, steel strip armor 3, steel wire armor 4, flame-retardant filling layer 5, anti-mildew layer 6, moisture-proof layer 7, first insulation layer 8, isolation layer 9, non-metallic braided layer 10, inner sheath layer 11, structural layer 12, plastic filler rope 13, sub-unit 14, second insulation layer 15, antistatic layer 16, sterilization layer 17, asbestos filling layer 18, glass fiber filling layer 19, non-metallic reinforcing layer 20, optical fiber 21, and sub-unit outer protective layer 22.

[0038] S2: Preparation of outer protective layer 1, isolation layer 9, inner and outer protective layers 1, isolation layer 9, inner sheath layer 11, sub-unit outer protective layer 22, and sub-unit outer protective layer 22: Prepare raw materials as required, mix the raw materials with stabilizers, lubricants, antistatic agents, and flame retardants, place the mixed material in a twin-screw extruder, start the twin-screw extruder, melt it, and extrude it into the shape conforming to outer protective layer 1, isolation layer 9, inner and outer protective layers 1, isolation layer 9, inner sheath layer 11, sub-unit outer protective layer 22, and sub-unit outer protective layer 22. The extruded outer protective layer 1... After cooling, the outer sheath 9, inner and outer protective layers 1, inner sheath 11, and sub-unit outer protective layer 22 are wound up. After winding, they are inspected, including: appearance inspection: checking whether the surfaces of outer sheath 1, outer sheath 9, inner sheath 11, and sub-unit outer protective layer 22 are smooth, and whether there are cracks, bubbles, or pinholes; checking whether the color of outer sheath 1, outer sheath 9, inner sheath 11, and sub-unit outer protective layer 22 is uniform; and dimensional inspection: accurately measuring outer sheath 1, outer sheath 9, inner sheath 11, and sub-unit outer protective layer 22. The thickness of layer 2 is ensured to meet the specified standards. The outer diameters of the cable outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 are measured. Physical performance testing: The hardness of the materials of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 is tested using a hardness tester. The tensile strength and elongation at break of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 are also tested. The abrasion resistance of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 is tested using a specific abrasion resistance testing machine. Electrical performance testing: The outer sheath 1... Insulation resistance and aging performance testing of the insulation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22: The cable outer sheath layer 1, insulation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 samples were placed in a high-temperature environment for a period of time to simulate long-term heat exposure. Then, the changes in their physical and electrical properties were tested. The light aging resistance of the materials of the outer sheath layer 1, insulation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 was tested using ultraviolet lamps to simulate ultraviolet radiation from sunlight. The chemical aging tests were also conducted according to the chemical substances that the cable comes into contact with, including acids, alkalis, and oils.

[0039] S3: Overall fabrication: After the non-metallic reinforcing layer 20 is installed on the optical fiber 21, the asbestos filling layer 18 and the glass fiber filling layer 19 are installed on the outer wall of the non-metallic reinforcing layer 20, the sterilization layer 17 is installed on the outer wall of the asbestos filling layer 18 and the glass fiber filling layer 19, the antistatic layer 16 is installed on the outer wall of the sterilization layer 17, the second insulation layer 15 is installed on the outer wall of the antistatic layer 16, and the sub-unit outer protective layer 22 is installed on the outer wall of the second insulation layer 15, thereby completing the fabrication of the sub-unit 14;

[0040] Subunit 14 is installed in the inner cavity of structural layer 12. Plastic filler rope 13 is filled into the remaining space in the inner cavity of structural layer 12. Inner sheath layer 11, non-metallic braided layer 10, first insulation layer 8, moisture-proof layer 7 and anti-mildew layer 6 are sequentially installed on the outer wall of structural layer 12. Wear-resistant layer 2 is formed by steel strip armor 3, steel wire armor 4 and flame-retardant filler layer 5. Wear-resistant layer 2 is installed on the outer wall of anti-mildew layer 6. Outer sheath layer 1 is installed on the outer wall of anti-mildew layer 6 to complete the overall preparation.

[0041] Example 2:

[0042] An optical fiber cable for transmitting wind energy from a wind turbine generator set includes an outer sheath 1, an anti-abrasion layer 2 installed in the inner cavity of the outer sheath 1, an anti-mildew layer 6 installed on the inner wall of the anti-mildew layer 2, a moisture-proof layer 7 installed on the inner wall of the anti-mildew layer 6, a first insulation layer 8 installed on the inner wall of the moisture-proof layer 7, an isolation layer 9 installed on the inner wall of the first insulation layer 8, a non-metallic braided layer 10 installed on the inner wall of the isolation layer 9, an inner sheath layer 11 installed on the inner wall of the non-metallic braided layer 10, and a structural layer installed on the inner wall of the inner sheath layer 11. 12. The inner cavity of the structural layer 12 is filled with plastic filler rope 13, and a sub-unit 14 is installed in the inner cavity of the plastic filler rope 13. The inner cavity of the wear-resistant layer 2 is filled with steel strip armor 3 and steel wire armor 4. A flame-retardant filler layer 5 is installed between the steel strip armor 3 and the steel wire armor 4. The sub-unit 14 includes a sub-unit outer protective layer 22. A second insulation layer 15 is installed in the inner cavity of the sub-unit outer protective layer 22. An antistatic layer 16 is installed on the inner wall of the second insulation layer 15. An antibacterial layer is installed on the inner wall of the antistatic layer 16. 17. The inner wall of the sterilization layer 17 is equipped with an asbestos filling layer 18 and a glass fiber filling layer 19. The inner wall of the asbestos filling layer 18 and the glass fiber filling layer 19 is equipped with a non-metallic reinforcing layer 20. An optical fiber 21 is installed in the inner cavity of the non-metallic reinforcing layer 20. The materials of the outer sheath 1, the isolation layer 9, the inner sheath layer 11, and the sub-unit outer protective layer 22 are PVC, PE, silicone rubber, and fluoroplastics. The materials of the flame-retardant filling layer 5 are aluminum hydroxide and magnesium hydroxide. The materials of the anti-mildew layer 6 and the sterilization layer 17 are copper, silver, titanium dioxide, zinc oxide, and quaternary ammonium salt polymers. The materials of the wear-resistant layer 2 are natural rubber, neoprene rubber, nitrile rubber, PVC, PE, nylon, and glass fiber. The materials of the moisture-proof layer 7 are aluminum foil, lead sheath, and TPE. The materials of the first insulation layer 8 and the second insulation layer 15 are PE, PVC, XLPE, silicone rubber, and cable paper. The materials of the antistatic layer 16 are ionic antistatic agents, non-ionic antistatic agents, metal fibers, and metal wire braided materials.

[0043] A method for manufacturing a wind power optical cable for transmitting wind turbine energy includes the following steps:

[0044] S1: Material preparation, including outer sheath 1, abrasion-resistant layer 2, steel strip armor 3, steel wire armor 4, flame-retardant filling layer 5, anti-mildew layer 6, moisture-proof layer 7, first insulation layer 8, isolation layer 9, non-metallic braided layer 10, inner sheath layer 11, structural layer 12, plastic filler rope 13, sub-unit 14, second insulation layer 15, antistatic layer 16, sterilization layer 17, asbestos filling layer 18, glass fiber filling layer 19, non-metallic reinforcing layer 20, optical fiber 21, and sub-unit outer protective layer 22.

[0045] S2: Preparation of outer protective layer 1, isolation layer 9, inner and outer protective layers 1, isolation layer 9, inner sheath layer 11, sub-unit outer protective layer 22, and sub-unit outer protective layer 22: Prepare raw materials as required, mix the raw materials with stabilizers, lubricants, antistatic agents, and flame retardants, place the mixed material in a twin-screw extruder, start the twin-screw extruder, melt it, and extrude it into the shape conforming to outer protective layer 1, isolation layer 9, inner and outer protective layers 1, isolation layer 9, inner sheath layer 11, sub-unit outer protective layer 22, and sub-unit outer protective layer 22. The extruded outer protective layer 1... After cooling, the outer sheath 9, inner and outer protective layers 1, inner sheath 11, and sub-unit outer protective layer 22 are wound up. After winding, they are inspected, including: appearance inspection: checking whether the surfaces of outer sheath 1, outer sheath 9, inner sheath 11, and sub-unit outer protective layer 22 are smooth, and whether there are cracks, bubbles, or pinholes; checking whether the color of outer sheath 1, outer sheath 9, inner sheath 11, and sub-unit outer protective layer 22 is uniform; and dimensional inspection: accurately measuring outer sheath 1, outer sheath 9, inner sheath 11, and sub-unit outer protective layer 22. The thickness of layer 2 is ensured to meet the specified standards. The outer diameters of the cable outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 are measured. Physical performance testing: The hardness of the materials of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 is tested using a hardness tester. The tensile strength and elongation at break of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 are also tested. The abrasion resistance of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 is tested using a specific abrasion resistance testing machine. Electrical performance testing: The outer sheath 1... Insulation resistance and aging performance testing of the insulation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22: The cable outer sheath layer 1, insulation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 samples were placed in a high-temperature environment for a period of time to simulate long-term heat exposure. Then, the changes in their physical and electrical properties were tested. The light aging resistance of the materials of the outer sheath layer 1, insulation layer 9, inner sheath layer 11, and sub-unit outer protective layer 22 was tested using ultraviolet lamps to simulate ultraviolet radiation from sunlight. The chemical aging tests were also conducted according to the chemical substances that the cable comes into contact with, including acids, alkalis, and oils.

[0046] S3: Overall fabrication: After the non-metallic reinforcing layer 20 is installed on the optical fiber 21, the asbestos filling layer 18 and the glass fiber filling layer 19 are installed on the outer wall of the non-metallic reinforcing layer 20, the sterilization layer 17 is installed on the outer wall of the asbestos filling layer 18 and the glass fiber filling layer 19, the antistatic layer 16 is installed on the outer wall of the sterilization layer 17, the second insulation layer 15 is installed on the outer wall of the antistatic layer 16, and the sub-unit outer protective layer 22 is installed on the outer wall of the second insulation layer 15, thereby completing the fabrication of the sub-unit 14;

[0047] Subunit 14 is installed in the inner cavity of structural layer 12. Plastic filler rope 13 is filled into the remaining space in the inner cavity of structural layer 12. Inner sheath layer 11, non-metallic braided layer 10, first insulation layer 8, moisture-proof layer 7 and anti-mildew layer 6 are sequentially installed on the outer wall of structural layer 12. Wear-resistant layer 2 is formed by steel strip armor 3, steel wire armor 4 and flame-retardant filler layer 5. Wear-resistant layer 2 is installed on the outer wall of anti-mildew layer 6. Outer sheath layer 1 is installed on the outer wall of anti-mildew layer 6 to complete the overall preparation.

[0048] The performance of the wind power optical cables prepared in Examples 1 and 2 was compared with that of commercially available wind power optical cables. The commercially available wind power optical cables are referred to as Comparative Example 1. The comparison table is as follows:

[0049]

[0050] As can be seen, the wind power optical cable prepared by this invention has significant performance improvements in all aspects.

[0051] This wind power optical cable is 60% smaller than similar products, reducing construction difficulty and costs, and providing a brand-new solution for the development of wind power. It can be used in harsh environments and has excellent mechanical properties, with strong torsional and tensile strength. Its sheathed optical cable has excellent physical properties such as high strength, high elastic modulus and high abrasion resistance, as well as excellent resistance to acids, alkalis, oils and solvents, making it suitable for use in harsh working conditions.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A wind energy cable for transmitting wind power generators, comprising an outer sheath (1), characterized in that: The inner cavity of the outer protective layer (1) is provided with an anti-abrasion layer (2), the inner wall of the anti-abrasion layer (2) is provided with an anti-mold layer (6), the inner wall of the anti-mold layer (6) is provided with a moisture-proof layer (7), the inner wall of the moisture-proof layer (7) is provided with a first insulation layer (8), the inner wall of the first insulation layer (8) is provided with a separation layer (9), the inner wall of the separation layer (9) is provided with a non-metal braided layer (10), the inner wall of the non-metal braided layer (10) is provided with an inner sheath layer (11), and the inner wall of the inner sheath layer (11) is provided with a structure layer (12); The inner cavity of the structure layer (12) is filled with a plastic filling rope (13), and the inner cavity of the plastic filling rope (13) is provided with a sub-unit (14); The inner cavity of the anti-abrasion layer (2) is provided with a steel tape armor (3) and a steel wire armor (4), and the steel tape armor (3) and the steel wire armor (4) are provided with a flame-retardant filling layer (5) therebetween; The sub-unit (14) comprises a sub-unit outer protective layer (22), the inner cavity of the sub-unit outer protective layer (22) is provided with a second insulation layer (15), the inner wall of the second insulation layer (15) is provided with an anti-static layer (16), the inner wall of the anti-static layer (16) is provided with a sterilization layer (17), the inner wall of the sterilization layer (17) is provided with an asbestos filling layer (18) and a glass fiber filling layer (19), the inner wall of the asbestos filling layer (18) and the glass fiber filling layer (19) is provided with a non-metal reinforcing layer (20), and the inner cavity of the non-metal reinforcing layer (20) is provided with an optical fiber (21).

2. A wind energy cable for transmitting power from a wind turbine generator according to claim 1, characterized in that: The materials of the outer protective layer (1), the separation layer (9), the inner sheath layer (11), and the sub-unit outer protective layer (22) comprise PVC, PE, neoprene, silicone rubber, and fluoroplastic.

3. A wind energy cable for transmitting power from a wind turbine generator according to claim 1, characterized in that: The material of the flame-retardant filling layer (5) comprises aluminum hydroxide, magnesium hydroxide, halogen flame retardant, phosphorus flame retardant, and intumescent flame retardant; the materials of the anti-mold layer (6) and the sterilization layer (17) comprise copper, silver, titanium dioxide, zinc oxide, quaternary ammonium salt polymer, and chitosan; the material of the anti-abrasion layer (2) comprises natural rubber, neoprene, nitrile rubber, PVC, PE, nylon, glass fiber, and aramid fiber; and the material of the moisture-proof layer (7) comprises aluminum foil, lead sheath, TPE, and butyl rubber.

4. A wind energy cable for transmitting signals from a wind turbine generator according to claim 1, wherein: The materials of the first insulation layer (8) and the second insulation layer (15) comprise PE, PVC, XLPE, fluoroplastic, silicone rubber, and cable paper; and the material of the anti-static layer (16) comprises carbon black filling material, ionic anti-static agent, non-ionic anti-static agent, metal fiber, and metal wire woven material.

5. The method of claim 1, wherein the wind power cable is used for transmitting power from a wind turbine generator. 5 The method comprises the following operation steps: S1: Preparation of materials, preparation of outer protective layer (1), wear-resistant layer (2), steel belt armor (3), steel wire armor (4), flame-retardant filling layer (5), mold-resistant layer (6), moisture-proof layer (7), first insulation layer (8), isolation layer (9), non-metallic braided layer (10), inner sheath layer (11), structural layer (12), plastic filling rope (13), sub-unit (14), second insulation layer (15), antistatic layer (16), degerming layer (17), asbestos filling layer (18), glass fiber filling layer (19), non-metallic reinforcing layer (20), optical fiber (21), sub-unit outer protective layer (22); S2: Preparation of outer protective layer (1), isolation layer (9), inner and outer protective layer (1), isolation layer (9), inner protective layer (11), subunit outer protective layer (22) layer (11), and subunit outer protective layer (22), prepare raw materials as needed, mix the raw materials with stabilizers, lubricants, antistatic agents, and flame retardants, place the mixed materials in a twin-screw extruder, start the twin-screw extruder, and perform melt processing, extrude the materials into the shape of outer protective layer (1), isolation layer (9), inner and outer protective layer (1), isolation layer (9), inner protective layer (11), subunit outer protective layer (22) layer (11), and subunit outer protective layer (22), cool the extruded outer protective layer (1), isolation layer (9), inner and outer protective layer (1), isolation layer (9), inner protective layer (11), subunit outer protective layer (22) layer (11), and subunit outer protective layer (22), and then perform winding processing, after winding is complete, perform detection, including appearance detection: check whether the surface of outer protective layer (1), isolation layer (9), inner protective layer (11), and subunit outer protective layer (22) is smooth, has cracks, bubbles, or pinholes, and whether the color of outer protective layer (1), isolation layer (9), inner protective layer (11), and subunit outer protective layer (22) is uniform; size detection: accurately measure the thickness of outer protective layer (1), isolation layer (9), inner protective layer (11), and subunit outer protective layer (22) to ensure that it meets the specified standard, measure the outer diameter of cable outer protective layer (1), isolation layer (9), inner protective layer (11), and subunit outer protective layer (22), physical property detection: use a hardness tester to detect the hardness of outer protective layer (1), isolation layer (9), inner protective layer (11), and subunit outer protective layer (22) material, detect the tensile strength and elongation at break of outer protective layer (1), isolation layer (9), inner protective layer (11), and subunit outer protective layer (22), and use a specific wear tester to detect the wear resistance of outer protective layer (1), isolation layer (9), inner protective layer (11), and subunit outer protective layer (22); electrical property detection: measure the insulation resistance of outer protective layer (1), isolation layer (9), inner protective layer (11), and subunit outer protective layer (22), aging property detection: place cable outer protective layer (1), isolation layer (9), inner protective layer (11), and subunit outer protective layer (22) samples in a high-temperature environment for a period of time to simulate long-term heating working conditions, then detect changes in their physical and electrical properties, use an ultraviolet lamp to simulate ultraviolet radiation in sunlight to detect the light aging resistance of outer protective layer (1), isolation layer (9), inner protective layer (11), and subunit outer protective layer (22) material, and perform corresponding chemical aging tests according to the chemicals that the cable comes into contact with, including acids, bases, and oils. S3: the preparation of the whole, the non-metallic reinforcing layer (20) is installed in the fiber (21) is finished, the asbestos filling layer (18) and glass fiber filling layer (19) are installed in the outer wall of the non-metallic reinforcing layer (20), the sterilization layer (17) is installed in the outer wall of the asbestos filling layer (18) and glass fiber filling layer (19), the antistatic layer (16) is installed in the outer wall of the sterilization layer (17), the second insulation layer (15) is installed in the outer wall of the antistatic layer (16), the subunit outer protective layer (22) is installed in the outer wall of the second insulation layer (15), so as to complete the preparation of the subunit (14); The subunit (14) is installed in the inner cavity of the structure layer (12), the plastic filling rope (13) is filled into the remaining space in the inner cavity of the structure layer (12), the inner sheath layer (11), the non-metallic braided layer (10), the first insulation layer (8), the moisture-proof layer (7) and the mildew-proof layer (6) are installed in the outer wall of the structure layer (12) in turn, the wear-resistant layer (2) is composed of the steel tape armor (3), the steel wire armor (4) and the flame-retardant filling layer (5), the wear-resistant layer (2) is installed in the outer wall of the mildew-proof layer (6), and the outer protective layer (1) is installed in the outer wall of the mildew-proof layer (6), so as to complete the preparation of the whole.

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