Wind energy optical cable for transmitting wind generating set and preparation method of wind energy optical cable

Abstract

The invention discloses a wind energy optical cable for transmission of a wind generating set and a preparation method thereof, and relates to the field of wind energy optical cables, the wind energy optical cable comprises an outer protective layer, an anti-wear layer is installed in an inner cavity of the outer protective layer, an anti-mildew layer is installed on the inner wall of the anti-wear layer, and a damp-proof layer is installed on the inner wall of the anti-mildew layer. The inner wall of the damp-proof layer is provided with a first insulating layer, the inner wall of the first insulating layer is provided with an isolating layer, the inner wall of the isolating layer is provided with a non-metal braid layer, the inner wall of the non-metal braid layer is provided with an inner sheath layer, the inner wall of the inner sheath layer is provided with a structural layer, and the inner cavity of the structural layer is filled with plastic filling ropes. And subunits are mounted in inner cavities of the plastic filling ropes. According to the wind energy optical cable for transmitting the wind generating set and the preparation method of the wind energy optical cable, the construction difficulty and the construction cost of the wind energy optical cable are low, a brand new solution is provided for the development of wind energy, and the wind energy optical cable can be used in severe environments.

Description

Technical Field

[0001] The present invention relates to the field of wind energy optical cables, and in particular to a wind energy optical cable for transmitting wind power generator sets and a preparation method thereof. Background Art

[0002] As a renewable energy source, wind energy is gaining more and more attention around the world. With the continuous advancement of technology and the reduction of costs, the application prospects of wind energy are very broad. From an environmental protection perspective, wind energy is a clean and pollution-free energy source. It does not produce greenhouse gases or other harmful substances during the power generation process, which helps to reduce dependence on traditional fossil fuels, reduce carbon emissions, and respond to global climate change. From an energy security perspective, wind energy, as a widely distributed energy source, can be complementary between different regions and countries to improve the stability and security of energy supply. At the same time, wind energy can also be used as a peak-shaving power source to make up for the shortcomings of other energy sources when the supply fluctuates. From an economic development perspective, the development of the wind energy industry can drive the development of related equipment manufacturing, installation, maintenance and other industrial chains, create employment opportunities, and promote economic growth. At the same time, with the continuous advancement of wind energy technology and the reduction of costs, its competitiveness is also constantly increasing, and it is expected to occupy a larger share in 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 the continuous advancement of technology and policy support, wind energy is expected to play a greater role in the energy field and contribute to sustainable development.

[0004] Existing branch optical cables are generally made of one or more optical fibers, which are made into a tight package, filled with reinforcement parts to make sub-units twisted into a cable and then sheathed. The existing structure of the optical cable has poor flexibility. Taking a 24-core branch optical cable as an example, the outer diameter of its sub-unit is about 2mm, and the overall outer diameter of the optical cable ranges from 14-15mm. The large outer diameter limits its construction scenarios.

[0005] Therefore, it is necessary to propose a wind energy optical cable for transmitting wind power generation sets and a preparation method thereof to solve the above problems. Summary of the invention

[0006] The main purpose of the present invention is to provide a wind energy optical cable for transmitting wind power generation sets and a preparation method thereof, which can effectively solve the problems in the background technology.

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

[0008] A wind energy optical cable for transmitting wind power generation sets, comprising an outer sheath, an anti-wear layer is installed in the inner cavity of the outer sheath, an anti-mildew layer is installed on the inner wall of the anti-mildew layer, a moisture-proof layer is installed on the inner wall of the anti-mildew layer, a first insulating layer is installed on the inner wall of the moisture-proof layer, an isolation layer is installed on the inner wall of the first insulating layer, a non-metallic braided layer is installed on the inner wall of the isolation layer, an inner sheath layer is installed on the inner wall of the non-metallic braided layer, and a structural layer is installed on the inner wall of the inner sheath layer;

[0009] The inner cavity of the structural layer is filled with plastic filling ropes, and the subunits are installed in the inner cavity of the plastic filling ropes.

[0010] Preferably, a steel belt armor and a steel wire armor are installed in the inner cavity of the anti-wear layer, and a flame-retardant filling layer is installed between the steel belt armor and the steel wire armor.

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

[0012] Preferably, the materials of the outer protective layer, the isolation layer, the inner sheath layer, and the outer protective layer of the subunit include but are not limited to PVC, PE, chloroprene rubber, silicone rubber, and fluoroplastics.

[0013] Preferably, the material of the flame-retardant filling layer includes but is not limited to aluminum hydroxide, magnesium hydroxide, halogen flame retardants, phosphorus flame retardants, and intumescent flame retardants; the materials of the anti-mildew layer and the sterilization layer include but are not limited to copper, silver, titanium dioxide, zinc oxide, quaternary ammonium salt polymers, and chitosan; the material of the anti-wear layer includes but is not limited to natural rubber, chloroprene rubber, nitrile rubber, PVC, PE, nylon, glass fiber, and aramid fiber; the material of the moisture-proof layer includes but is not limited to aluminum foil, lead sheath, TPE, and butyl rubber.

[0014] Preferably, the materials of the first insulating layer and the second insulating layer include but are not limited to PE, PVC, XLPE, fluoroplastics, silicone rubber, and cable paper; the materials of the antistatic layer include but are not limited to carbon black filling materials, ionic antistatic agents, non-ionic antistatic agents, metal fibers, and metal wire braided materials.

[0015] A method for preparing a wind energy optical cable for transmitting wind power generating sets comprises the following steps:

[0016] S1: Material preparation, including outer sheath, anti-wear layer, steel belt armor, steel wire armor, flame retardant filling layer, mildew proof layer, moisture proof layer, first insulation layer, isolation layer, non-metallic braided layer, inner sheath layer, structural layer, plastic filling rope, subunit, second insulation layer, antistatic layer, sterilization layer, asbestos filling layer, glass fiber filling layer, non-metallic reinforcement layer, optical fiber, and subunit outer sheath;

[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 the raw materials with stabilizer, lubricant, antistatic agent, and flame retardant, place the mixed materials in a twin-screw extruder, start the twin-screw extruder, melt-treat them, extrude them into shapes that meet the requirements 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, and extruded outer protective layer, isolation layer, inner and outer protective layer, and extruded them into shapes that meet the requirements 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. The outer and inner protective layers, isolation layers, inner jacket layers, sub-unit outer protective layers and sub-unit outer protective layers are cooled and then rolled up. After the rolling is completed, they are inspected, including appearance inspection: check whether the surface of the outer protective layer, isolation layer, inner jacket layer and sub-unit outer protective layer is smooth, whether there are cracks, bubbles, sand holes, check whether the color of the outer protective layer, isolation layer, inner jacket layer and sub-unit outer protective layer is uniform; size inspection: accurately measure the thickness of the outer protective layer, isolation layer, inner jacket layer and sub-unit outer protective layer to ensure its Meet the specified standards, measure the outer diameters of the cable outer sheath, isolation layer, inner sheath, and outer sheath of the sub-unit; Physical performance test: Use a hardness tester to test the hardness of the outer sheath, isolation layer, inner sheath, and outer sheath of the sub-unit; Test the tensile strength and elongation at break of the outer sheath, isolation layer, inner sheath, and outer sheath of the sub-unit; Use a specific wear-resistant testing machine to test the wear resistance of the outer sheath, isolation layer, inner sheath, and outer sheath of the sub-unit; Electrical performance test: Measure the insulation resistance of the outer sheath, isolation layer, inner sheath, and outer sheath of the sub-unit; Aging performance test: Place the cable outer sheath, isolation layer, inner sheath, and outer sheath samples in a high-temperature environment for a period of time to simulate a long-term heated working state, and then test the changes in their physical and electrical properties; Use an ultraviolet lamp to simulate ultraviolet radiation in sunlight to test the light aging resistance of the outer sheath, isolation layer, inner sheath, and outer sheath of the sub-unit; Perform corresponding chemical aging tests based on the chemical substances that the cable is exposed to, including but not limited to acid, alkali, and oil;

[0018] S3: Overall preparation, the non-metallic reinforcement layer is installed on the optical fiber, the asbestos filling layer and the glass fiber filling layer are installed on the outer wall of the non-metallic reinforcement layer, the sterilization layer is installed on the outer wall of the asbestos filling layer and the glass fiber filling layer, the antistatic layer is installed on the outer wall of the sterilization layer, the second insulating layer is installed on the outer wall of the antistatic layer, and the sub-unit outer protective layer is installed on the outer wall of the second insulating layer, thereby completing the preparation of the sub-unit;

[0019] Install the subunit in the inner cavity of the structural layer, fill the remaining space in the inner cavity of the structural layer with plastic filling rope, install the inner sheath layer, non-metallic braided layer, first insulating layer, moisture-proof layer and mildew-proof layer on the outer wall of the structural layer in sequence, form an anti-wear layer through steel belt armor, steel wire armor and flame retardant filling layer, install the anti-wear layer on the outer wall of the anti-mildew layer, and install the outer protective layer 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 energy optical cable for transmitting wind power generation sets and a preparation method thereof, which has the following beneficial effects:

[0021] 1. The wind energy optical cable used for transmitting wind turbines and its preparation method are 60% smaller than similar products, which reduces the construction difficulty and cost, and provides a new solution for the development of wind energy. It can be used in harsh environments and has excellent mechanical properties.

[0022] 2. The wind energy optical cable used for transmitting wind power generator sets and its preparation 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, solvent resistance and other properties, and can be used under harsh working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 The present invention Figure 1 The enlarged view of point A in the middle;

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

[0026] In the figure: 1. Outer sheath; 2. Anti-wear layer; 3. Steel belt 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 filling rope; 14. Sub-unit; 15. Second insulation layer; 16. Antistatic layer; 17. Sterilization layer; 18. Asbestos filling layer; 19. Glass fiber filling layer; 20. Non-metallic reinforcement layer; 21. Optical fiber; 22. Sub-unit outer protective layer. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] like Figure 1-Figure 3 As shown, a wind energy optical cable for transmitting wind power generating sets comprises an outer sheath 1, an anti-wear layer 2 is installed in the inner cavity of the outer sheath 1, an anti-mildew layer 6 is installed on the inner wall of the anti-mildew layer 6, a moisture-proof layer 7 is installed on the inner wall of the anti-mildew layer 6, a first insulating layer 8 is installed on the inner wall of the moisture-proof layer 7, an isolation layer 9 is installed on the inner wall of the first insulating layer 8, a non-metallic braided layer 10 is installed on the inner wall of the isolation layer 9, an inner sheath layer 11 is installed on the inner wall of the non-metallic braided layer 10, a structural layer 12 is installed on the inner wall of the inner sheath layer 11, and the inner cavity of the structural layer 12 is filled with plastic The filling rope 13 is provided with a subunit 14 in the inner cavity of the plastic filling rope 13, the steel belt armor 3 and the steel wire armor 4 are provided in the inner cavity of the anti-wear layer 2, and a flame retardant filling layer 5 is provided between the steel belt armor 3 and the steel wire armor 4. The subunit 14 includes a subunit outer protective layer 22, and a second insulating layer 15 is provided in the inner cavity of the subunit outer protective layer 22. An antistatic layer 16 is provided on the inner wall of the second insulating layer 15, and a sterilization layer 17 is provided on the inner wall of the antistatic layer 16. An asbestos filling layer 18 and a glass fiber filling layer 19 are provided on the inner wall of the sterilization layer 17. The asbestos filling layer The inner wall of the fiberglass filling layer 18 and the glass fiber filling layer 19 is installed with a non-metallic reinforcement layer 20, and the inner cavity of the non-metallic reinforcement layer 20 is installed with an optical fiber 21. The materials of the outer sheath 1, the isolation layer 9, the inner sheath layer 11, and the subunit outer protection layer 22 include but are not limited to PVC, PE, chloroprene rubber, silicone rubber, and fluoroplastics. The materials of the flame retardant filling layer 5 include but are not limited to aluminum hydroxide, magnesium hydroxide, halogen flame retardants, phosphorus flame retardants, and expansion flame retardants; the materials of the anti-mold layer 6 and the sterilization layer 17 include but are not limited to copper, silver, titanium dioxide, zinc oxide, quaternary ammonium salt polymer The materials of the wear-proof layer 2 include but are not limited to natural rubber, chloroprene rubber, nitrile rubber, PVC, PE, nylon, glass fiber, aramid fiber; the materials of the moisture-proof layer 7 include but are not limited to aluminum foil, lead sheath, TPE, butyl rubber; the materials of the first insulating layer 8 and the second insulating layer 15 include but are not limited to PE, PVC, XLPE, fluoroplastics, silicone rubber, cable paper; the materials of the antistatic layer 16 include but are not limited to carbon black filling materials, ionic antistatic agents, non-ionic antistatic agents, metal fibers, and metal wire braided materials;

[0029] A method for preparing a wind energy optical cable for transmitting wind power generating sets comprises the following steps:

[0030] S1: Preparation of materials, including outer sheath 1, wear-resistant layer 2, steel belt armor 3, steel wire armor 4, flame retardant filling layer 5, mildew-proof 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, subunit 14, second insulation layer 15, antistatic layer 16, sterilization layer 17, asbestos filling layer 18, glass fiber filling layer 19, non-metallic reinforcement layer 20, optical fiber 21, and subunit 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 jacket layer 11, sub-unit outer protective layer 22, prepare raw materials as required, mix the raw materials with stabilizer, lubricant, antistatic agent and flame retardant, place the mixed materials in a twin-screw extruder, start the twin-screw extruder, melt-treat them, extrude them into shapes that conform to the outer protective layer 1, isolation layer 9, inner and outer protective layers 1, isolation layer 9, inner jacket layer 11, sub-unit outer protective layer 22, and form the outer protective layer 1, isolation layer 9, inner jacket layer 11, sub-unit outer protective layer 22. The absorptive layer 9, the inner and outer protective layers 1, the isolation layer 9, the inner jacket layer 11, and the outer protective layer 22 of the subunit are cooled and then rolled up. After the rolling is completed, they are inspected, including appearance inspection: check whether the surface of the outer protective layer 1, the isolation layer 9, the inner jacket layer 11, and the outer protective layer 22 of the subunit is smooth, whether there are cracks, bubbles, and sand holes, and check whether the color of the outer protective layer 1, the isolation layer 9, the inner jacket layer 11, and the outer protective layer 22 of the subunit is uniform; size inspection: accurately measure the outer protective layer 1, the isolation layer 9, the inner jacket layer 11, and the outer protective layer 22 of the subunit Thickness, ensure that it meets the specified standards, measure the outer diameter of the cable outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer sheath 22, physical performance test: use a hardness tester to test the hardness of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer sheath 22 materials, test the tensile strength and elongation at break of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer sheath 22, and use a specific wear-resistant testing machine to test the wear resistance of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer sheath 22; electrical performance test: measure the outer sheath 1, isolation layer 9. Insulation resistance of the inner sheath layer 11 and the outer protective layer 22 of the subunit, and aging performance test: place the samples of the outer sheath 1, the isolation layer 9, the inner sheath 11, and the outer protective layer 22 of the subunit in a high temperature environment for a period of time to simulate the long-term heated working state, and then test the changes in their physical and electrical properties. Use an ultraviolet lamp to simulate the ultraviolet radiation in the sun to test the light aging resistance of the materials of the outer sheath 1, the isolation layer 9, the inner sheath 11, and the outer protective layer 22 of the subunit. According to the chemical substances that the cable is exposed to, including but not limited to acid, alkali, and oil, corresponding chemical aging tests are carried out;

[0032] S3: Overall preparation, the non-metallic reinforcement 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 reinforcement 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 insulating layer 15 is installed on the outer wall of the antistatic layer 16, and the subunit outer protective layer 22 is installed on the outer wall of the second insulating layer 15, thereby completing the preparation of the subunit 14;

[0033] The subunit 14 is installed in the inner cavity of the structural layer 12, and the plastic filling rope 13 is filled into the remaining space in the inner cavity of the structural layer 12. The inner sheath layer 11, the non-metallic braided layer 10, the first insulating layer 8, the moisture-proof layer 7 and the anti-mildew layer 6 are installed on the outer wall of the structural layer 12 in sequence. The anti-wear layer 2 is formed by the steel belt armor 3, the steel wire armor 4 and the flame-retardant filling layer 5. The anti-wear layer 2 is installed on the outer wall of the anti-mildew layer 6, and the outer protective layer 1 is installed on the outer wall of the anti-mildew layer 6 to complete the overall preparation.

[0034] Embodiment 1:

[0035] A wind energy optical cable for transmitting wind power generating sets, comprising an outer sheath 1, an anti-wear layer 2 is installed in the inner cavity of the outer sheath 1, an anti-mildew layer 6 is installed on the inner wall of the anti-mildew layer 2, a moisture-proof layer 7 is installed on the inner wall of the anti-mildew layer 6, a first insulating layer 8 is installed on the inner wall of the moisture-proof layer 7, an isolation layer 9 is installed on the inner wall of the first insulating layer 8, a non-metallic braided layer 10 is installed on the inner wall of the isolation layer 9, an inner sheath layer 11 is installed on the inner wall of the non-metallic braided layer 10, a structural layer 12 is installed on the inner wall of the inner sheath layer 11, a plastic filling rope 13 is filled in the inner cavity of the structural layer 12, a subunit 14 is installed in the inner cavity of the plastic filling rope 13, a steel belt armor 3 and a steel wire armor 4 are installed in the inner cavity of the anti-wear layer 2, a flame-retardant filling layer 5 is installed between the steel belt armor 3 and the steel wire armor 4, the subunit 14 comprises a subunit outer protective layer 22, a subunit outer protective layer 22 is installed in the inner cavity A second insulating layer 15 is provided, an antistatic layer 16 is provided on the inner wall of the second insulating layer 15, a sterilization layer 17 is provided on the inner wall of the antistatic layer 16, an asbestos filling layer 18 and a glass fiber filling layer 19 are provided on the inner wall of the sterilization layer 17, a non-metallic reinforcing layer 20 is provided on the inner wall of the asbestos filling layer 18 and the glass fiber filling layer 19, an optical fiber 21 is provided in the inner cavity of the non-metallic reinforcing layer 20, chloroprene rubber is selected as the material of the outer sheath 1, the isolation layer 9, the inner sheath layer 11, and the outer protective layer 22 of the subunit, halogen flame retardant, phosphorus flame retardant, and expansion flame retardant are selected as the material of the flame retardant filling layer 5; chitosan is selected as the material of the anti-mold layer 6 and the sterilization layer 17; aramid fiber is selected as the material of the anti-wear layer 2; butyl rubber is selected as the material of the moisture-proof layer 7, fluoroplastic is selected as the material of the first insulating layer 8 and the second insulating layer 15; carbon black filling material is selected as the material of the antistatic layer 16;

[0036] A method for preparing a wind energy optical cable for transmitting wind power generating sets comprises the following steps:

[0037] S1: Preparation of materials, including outer sheath 1, wear-resistant layer 2, steel belt armor 3, steel wire armor 4, flame retardant filling layer 5, mildew-proof 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, subunit 14, second insulation layer 15, antistatic layer 16, sterilization layer 17, asbestos filling layer 18, glass fiber filling layer 19, non-metallic reinforcement layer 20, optical fiber 21, and subunit 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 jacket layer 11, sub-unit outer protective layer 22, prepare raw materials as required, mix the raw materials with stabilizer, lubricant, antistatic agent and flame retardant, place the mixed materials in a twin-screw extruder, start the twin-screw extruder, melt-treat them, extrude them into shapes that conform to the outer protective layer 1, isolation layer 9, inner and outer protective layers 1, isolation layer 9, inner jacket layer 11, sub-unit outer protective layer 22, and form the outer protective layer 1, isolation layer 9, inner jacket layer 11, sub-unit outer protective layer 22. The absorptive layer 9, the inner and outer protective layers 1, the isolation layer 9, the inner jacket layer 11, and the outer protective layer 22 of the subunit are cooled and then rolled up. After the rolling is completed, they are inspected, including appearance inspection: check whether the surface of the outer protective layer 1, the isolation layer 9, the inner jacket layer 11, and the outer protective layer 22 of the subunit is smooth, whether there are cracks, bubbles, and sand holes, and check whether the color of the outer protective layer 1, the isolation layer 9, the inner jacket layer 11, and the outer protective layer 22 of the subunit is uniform; size inspection: accurately measure the outer protective layer 1, the isolation layer 9, the inner jacket layer 11, and the outer protective layer 22 of the subunit Thickness, ensure that it meets the specified standards, measure the outer diameter of the cable outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer sheath 22, physical performance test: use a hardness tester to test the hardness of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer sheath 22 materials, test the tensile strength and elongation at break of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer sheath 22, and use a specific wear-resistant testing machine to test the wear resistance of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer sheath 22; electrical performance test: measure the outer sheath 1, isolation layer 9. Insulation resistance of the inner sheath layer 11 and the outer protective layer 22 of the subunit, and aging performance test: place the samples of the outer sheath 1, the isolation layer 9, the inner sheath 11, and the outer protective layer 22 of the subunit in a high temperature environment for a period of time to simulate the long-term heated working state, and then test the changes in their physical and electrical properties. Use an ultraviolet lamp to simulate the ultraviolet radiation in the sun to test the light aging resistance of the materials of the outer sheath 1, the isolation layer 9, the inner sheath 11, and the outer protective layer 22 of the subunit. According to the chemical substances that the cable is exposed to, including but not limited to acid, alkali, and oil, corresponding chemical aging tests are carried out;

[0039] S3: Overall preparation, the non-metallic reinforcement 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 reinforcement 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 insulating layer 15 is installed on the outer wall of the antistatic layer 16, and the subunit outer protective layer 22 is installed on the outer wall of the second insulating layer 15, thereby completing the preparation of the subunit 14;

[0040] The subunit 14 is installed in the inner cavity of the structural layer 12, and the plastic filling rope 13 is filled into the remaining space in the inner cavity of the structural layer 12. The inner sheath layer 11, the non-metallic braided layer 10, the first insulating layer 8, the moisture-proof layer 7 and the anti-mildew layer 6 are installed on the outer wall of the structural layer 12 in sequence. The anti-wear layer 2 is formed by the steel belt armor 3, the steel wire armor 4 and the flame-retardant filling layer 5. The anti-wear layer 2 is installed on the outer wall of the anti-mildew layer 6, and the outer protective layer 1 is installed on the outer wall of the anti-mildew layer 6 to complete the overall preparation.

[0041] Embodiment 2:

[0042] A wind energy optical cable for transmitting wind power generating sets, comprising an outer sheath 1, an anti-wear layer 2 is installed in the inner cavity of the outer sheath 1, an anti-mildew layer 6 is installed on the inner wall of the anti-mildew layer 2, a moisture-proof layer 7 is installed on the inner wall of the anti-mildew layer 6, a first insulating layer 8 is installed on the inner wall of the moisture-proof layer 7, an isolation layer 9 is installed on the inner wall of the first insulating layer 8, a non-metallic braided layer 10 is installed on the inner wall of the isolation layer 9, an inner sheath layer 11 is installed on the inner wall of the non-metallic braided layer 10, a structural layer 12 is installed on the inner wall of the inner sheath layer 11, a plastic filling rope 13 is filled in the inner cavity of the structural layer 12, a subunit 14 is installed in the inner cavity of the plastic filling rope 13, a steel belt armor 3 and a steel wire armor 4 are installed in the inner cavity of the anti-wear layer 2, a flame-retardant filling layer 5 is installed between the steel belt armor 3 and the steel wire armor 4, the subunit 14 comprises a subunit outer protective layer 22, and the subunit outer protective layer 22 A second insulating layer 15 is installed in the inner cavity, an antistatic layer 16 is installed on the inner wall of the second insulating layer 15, a sterilization layer 17 is installed on the inner wall of the antistatic layer 16, an asbestos filling layer 18 and a glass fiber filling layer 19 are installed on the inner wall of the sterilization layer 17, a non-metallic reinforcement layer 20 is installed on the inner wall of the asbestos filling layer 18 and the glass fiber filling layer 19, an optical fiber 21 is installed in the inner cavity of the non-metallic reinforcement 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 silicone rubber; the material of the flame retardant filling layer 5 is an expansion flame retardant; the material of the anti-mildew layer 6 and the sterilization layer 17 is a quaternary ammonium salt polymer; the material of the anti-wear layer 2 is nylon; the material of the moisture-proof layer 7 is a lead sheath; the material of the first insulating layer 8 and the second insulating layer 15 is cable paper; the material of the antistatic layer 16 is a metal wire braided material;

[0043] A method for preparing a wind energy optical cable for transmitting wind power generating sets comprises the following steps:

[0044] S1: Preparation of materials, including outer sheath 1, wear-resistant layer 2, steel belt armor 3, steel wire armor 4, flame retardant filling layer 5, mildew-proof 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, subunit 14, second insulation layer 15, antistatic layer 16, sterilization layer 17, asbestos filling layer 18, glass fiber filling layer 19, non-metallic reinforcement layer 20, optical fiber 21, and subunit 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 jacket layer 11, sub-unit outer protective layer 22, prepare raw materials as required, mix the raw materials with stabilizer, lubricant, antistatic agent and flame retardant, place the mixed materials in a twin-screw extruder, start the twin-screw extruder, melt-treat them, extrude them into shapes that conform to the outer protective layer 1, isolation layer 9, inner and outer protective layers 1, isolation layer 9, inner jacket layer 11, sub-unit outer protective layer 22, and form the outer protective layer 1, isolation layer 9, inner jacket layer 11, sub-unit outer protective layer 22. The absorptive layer 9, the inner and outer protective layers 1, the isolation layer 9, the inner jacket layer 11, and the outer protective layer 22 of the subunit are cooled and then rolled up. After the rolling is completed, they are inspected, including appearance inspection: check whether the surface of the outer protective layer 1, the isolation layer 9, the inner jacket layer 11, and the outer protective layer 22 of the subunit is smooth, whether there are cracks, bubbles, and sand holes, and check whether the color of the outer protective layer 1, the isolation layer 9, the inner jacket layer 11, and the outer protective layer 22 of the subunit is uniform; size inspection: accurately measure the outer protective layer 1, the isolation layer 9, the inner jacket layer 11, and the outer protective layer 22 of the subunit Thickness, ensure that it meets the specified standards, measure the outer diameter of the cable outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer sheath 22, physical performance test: use a hardness tester to test the hardness of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer sheath 22 materials, test the tensile strength and elongation at break of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer sheath 22, and use a specific wear-resistant testing machine to test the wear resistance of the outer sheath 1, isolation layer 9, inner sheath layer 11, and sub-unit outer sheath 22; electrical performance test: measure the outer sheath 1, isolation layer 9. Insulation resistance of the inner sheath layer 11 and the outer protective layer 22 of the subunit, and aging performance test: place the samples of the outer sheath 1, the isolation layer 9, the inner sheath 11, and the outer protective layer 22 of the subunit in a high temperature environment for a period of time to simulate the long-term heated working state, and then test the changes in their physical and electrical properties. Use an ultraviolet lamp to simulate the ultraviolet radiation in the sun to test the light aging resistance of the materials of the outer sheath 1, the isolation layer 9, the inner sheath 11, and the outer protective layer 22 of the subunit. According to the chemical substances that the cable is exposed to, including but not limited to acid, alkali, and oil, corresponding chemical aging tests are carried out;

[0046] S3: Overall preparation, the non-metallic reinforcement 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 reinforcement 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 insulating layer 15 is installed on the outer wall of the antistatic layer 16, and the subunit outer protective layer 22 is installed on the outer wall of the second insulating layer 15, thereby completing the preparation of the subunit 14;

[0047] The subunit 14 is installed in the inner cavity of the structural layer 12, and the plastic filling rope 13 is filled into the remaining space in the inner cavity of the structural layer 12. The inner sheath layer 11, the non-metallic braided layer 10, the first insulating layer 8, the moisture-proof layer 7 and the anti-mildew layer 6 are installed on the outer wall of the structural layer 12 in sequence. The anti-wear layer 2 is formed by the steel belt armor 3, the steel wire armor 4 and the flame-retardant filling layer 5. The anti-wear layer 2 is installed on the outer wall of the anti-mildew layer 6, and the outer protective layer 1 is installed on the outer wall of the anti-mildew layer 6 to complete the overall preparation.

[0048] The performance of the wind energy optical cables prepared in Example 1 and Example 2 is compared with the common wind energy optical cables on the market, wherein the common wind energy optical cables on the market are recorded as Comparative Example 1. The following is a comparison table:

[0049]

[0050] It can be seen that the wind energy optical cable prepared by the present invention has obvious performance improvements in various data.

[0051] The size of this wind power optical cable is 60% smaller than similar products, which reduces the construction difficulty and cost, and provides a new solution for the development of wind energy. It can be used in harsh environments and has excellent mechanical properties, strong torsional performance and tensile performance. Its 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, solvent resistance and other properties, and can be used under harsh working conditions.

[0052] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A wind energy optical cable for transmitting wind power generation units, comprising an outer sheath (1), characterized in that: An anti-wear layer (2) is installed in the inner cavity of the outer protective layer (1), an anti-mildew layer (6) is installed on the inner wall of the anti-mildew layer (6), a moisture-proof layer (7) is installed on the inner wall of the moisture-proof layer (7), a first insulating layer (8) is installed on the inner wall of the moisture-proof layer (7), an isolation layer (9) is installed on the inner wall of the first insulating layer (8), a non-metallic braided layer (10) is installed on the inner wall of the isolation layer (9), an inner sheath layer (11) is installed on the inner wall of the non-metallic braided layer (10), and a structural layer (12) is installed on the inner wall of the inner sheath layer (11); The inner cavity of the structural layer (12) is filled with plastic filling ropes (13), and the inner cavity of the plastic filling ropes (13) is installed with a subunit (14).

2. The wind energy optical cable for transmitting wind power generation units according to claim 1, characterized in that: A steel belt armor (3) and a steel wire armor (4) are installed in the inner cavity of the anti-wear layer (2), and a flame-retardant filling layer (5) is installed between the steel belt armor (3) and the steel wire armor (4).

3. The optical cable for transmitting wind energy of a wind turbine generator set according to claim 1, characterized in that: The subunit (14) comprises a subunit outer protective layer (22), a second insulating layer (15) is installed in the inner cavity of the subunit outer protective layer (22), an antistatic layer (16) is installed on the inner wall of the second insulating layer (15), a sterilization layer (17) is installed on the inner wall of the antistatic layer (16), an asbestos filling layer (18) and a glass fiber filling layer (19) are installed on the inner wall of the sterilization layer (17), a non-metallic reinforcement layer (20) is installed on the inner walls of the asbestos filling layer (18) and the glass fiber filling layer (19), and an optical fiber (21) is installed in the inner cavity of the non-metallic reinforcement layer (20).

4. The optical cable for transmitting wind energy of a wind turbine generator set according to claim 1, characterized in that: The materials of the outer protective layer (1), the isolation layer (9), the inner sheath layer (11), and the subunit outer protective layer (22) include, but are not limited to, PVC, PE, chloroprene rubber, silicone rubber, and fluoroplastics.

5. The optical cable for transmitting wind energy of a wind turbine generator set according to claim 1, characterized in that: The material of the flame retardant filling layer (5) includes but is not limited to aluminum hydroxide, magnesium hydroxide, halogen flame retardants, phosphorus flame retardants, and intumescent flame retardants; the materials of the anti-mildew layer (6) and the sterilization layer (17) include but are not limited to copper, silver, titanium dioxide, zinc oxide, quaternary ammonium salt polymers, and chitosan; the material of the anti-wear layer (2) includes but is not limited to natural rubber, chloroprene rubber, nitrile rubber, PVC, PE, nylon, glass fiber, and aramid fiber; the material of the moisture-proof layer (7) includes but is not limited to aluminum foil, lead sheath, TPE, and butyl rubber.

6. The optical cable for transmitting wind energy of a wind turbine generator set according to claim 1, characterized in that: The materials of the first insulating layer (8) and the second insulating layer (15) include but are not limited to PE, PVC, XLPE, fluoroplastics, silicone rubber, and cable paper; the materials of the antistatic layer (16) include but are not limited to carbon black filling materials, ionic antistatic agents, non-ionic antistatic agents, metal fibers, and metal wire braided materials.

7. The method for preparing a wind energy optical cable for transmitting wind power generation sets according to claim 1, characterized in that: The steps include: S1: Preparation of materials, including outer sheath (1), wear-resistant layer (2), steel belt armor (3), steel wire armor (4), flame-retardant filling layer (5), mildew-proof 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), subunit (14), second insulation layer (15), antistatic layer (16), sterilization layer (17), asbestos filling layer (18), glass fiber filling layer (19), non-metallic reinforcement layer (20), optical fiber (21), and subunit outer protective layer (22); 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), layer (11), and sub-unit outer protective layer (22), preparing raw materials as required, mixing the raw materials with stabilizer, lubricant, antistatic agent, and flame retardant, placing the mixed materials in a twin-screw extruder, starting the twin-screw extruder, melting the materials, and extruding them into shapes that conform to the 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), layer (11), and sub-unit outer protective layer (22), and forming the outer protective layer (1) after extrusion. , isolation layer (9), inner and outer protective layers (1), isolation layer (9), inner sheath layer (11), sub-unit outer protective layer (22) layer (11) and sub-unit outer protective layer (22) are cooled and then rolled up. After the rolling is completed, they are inspected, including appearance inspection: check whether the surface of the outer protective layer (1), isolation layer (9), inner sheath layer (11), and sub-unit outer protective layer (22) is smooth, whether there are cracks, bubbles, and sand holes, check whether the color of the outer protective layer (1), isolation layer (9), inner sheath layer (11), and sub-unit outer protective layer (22) is uniform; size inspection: accurately measure the outer protective layer (1), isolation layer (9), inner sheath layer (11), and sub-unit The thickness of the outer protective layer (22) is ensured to meet the specified standards. The outer diameters of the cable outer protective layer (1), the isolation layer (9), the inner sheath layer (11), and the outer protective layer (22) of the sub-unit are measured. Physical performance test: the hardness of the outer protective layer (1), the isolation layer (9), the inner sheath layer (11), and the outer protective layer (22) of the sub-unit is tested by a hardness tester. The tensile strength and elongation at break of the outer protective layer (1), the isolation layer (9), the inner sheath layer (11), and the outer protective layer (22) of the sub-unit are tested. The wear resistance of the outer protective layer (1), the isolation layer (9), the inner sheath layer (11), and the outer protective layer (22) of the sub-unit is tested by a specific wear resistance testing machine. Electrical performance test: measurement Insulation resistance and aging performance test of the outer sheath (1), the isolation layer (9), the inner sheath (11), and the outer sheath (22) of the subunit: place the samples of the outer sheath (1), the isolation layer (9), the inner sheath (11), and the outer sheath (22) of the subunit in a high temperature environment for a period of time to simulate a long-term heated working state, and then test the changes in their physical and electrical properties. Use an ultraviolet lamp to simulate ultraviolet radiation in sunlight to test the light aging resistance of the materials of the outer sheath (1), the isolation layer (9), the inner sheath (11), and the outer sheath (22) of the subunit. Perform corresponding chemical aging tests according to the chemical substances that the cable is exposed to, including but not limited to acid, alkali, and oil; S3: The overall preparation is completed by installing the non-metallic reinforcement layer (20) on the optical fiber (21), installing the asbestos filling layer (18) and the glass fiber filling layer (19) on the outer wall of the non-metallic reinforcement layer (20), installing the sterilization layer (17) on the outer wall of the asbestos filling layer (18) and the glass fiber filling layer (19), installing the antistatic layer (16) on the outer wall of the sterilization layer (17), installing the second insulating layer (15) on the outer wall of the antistatic layer (16), and installing the subunit outer protective layer (22) on the outer wall of the second insulating layer (15), thereby completing the preparation of the subunit (14); The subunit (14) is installed in the inner cavity of the structural layer (12), the plastic filling rope (13) is filled into the remaining space in the inner cavity of the structural layer (12), the inner sheath layer (11), the non-metallic braided layer (10), the first insulating layer (8), the moisture-proof layer (7) and the anti-mildew layer (6) are installed in sequence on the outer wall of the structural layer (12), the anti-wear layer (2) is formed by the steel belt armor (3), the steel wire armor (4) and the flame-retardant filling layer (5), the anti-wear layer (2) is installed on the outer wall of the anti-mildew layer (6), and the outer protective layer (1) is installed on the outer wall of the anti-mildew layer (6), and the overall preparation is completed.

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