High-flexibility cable for wind power generation
By using flexible polyvinyl chloride sheath, spring layer, refractory mica and high flame retardant winding belt in wind power cables, the problem of flexible cables being prone to spontaneous combustion and deformation at high temperatures is solved, and higher resistance is achieved High temperature, fire and waterproof performance.
Patent Information
- Application Number
- CN202421765607.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-07-25
AI Technical Summary
Existing flexible cables are prone to spontaneous combustion at high temperatures and have poor high temperature resistance. They are prone to deformation after bending, making them troublesome to operate.
A high-flex cable for wind power generation was designed, using inner and outer sheaths as flexible polyvinyl chloride material, with a spring layer on the inside and outside, the high-temperature resistant layer is refractory mica, the fire-resistant layer is highly flame-retardant winding belt, and the fiber layer is glass fiber , the waterproof layer is rubber, and fire-resistant coating is applied to the outer sheath.
It improves the high temperature resistance, fire resistance, waterproof and bending recovery performance of the cable, ensures that the cable is not easily damaged in high temperature environments, prevents moisture from penetrating, and enhances the overall performance of the cable.
Smart Images
Figure CN222354803U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cables, in particular to a highly flexible cable for wind power generation. Background Art
[0002] Flexible cable is the preferred cable for power transmission material and signal transmission carrier in drag chain motion system. It is also known as drag chain cable, towing cable, mobile cable, robot cable, etc. The conductor structure of flexible cable is mainly based on the stranded copper conductor structure of DIN VDE 0295 and IEC 228 standards. The sheath is mostly made of low-viscosity, flexible and wear-resistant material to reduce the wear rate of the cable during continuous reciprocating movement.
[0003] Existing flexible cables have poor high temperature resistance and flame retardancy. When exposed to high external temperatures, the cables are prone to spontaneous combustion, causing extensive damage to the cable lines. Existing flexible cables are prone to deformation after being bent for a period of time, so they need to be straightened during installation, which is more troublesome to operate. Utility Model Content
[0004] The utility model aims to provide a highly flexible cable for wind power generation to solve the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A highly flexible cable for wind power generation, comprising an inner PP rope and an outer sheath, a cable core is arranged around the inner PP rope, a first spring is arranged on the outside of the inner PP rope, a filling layer is arranged on the outside of the first spring, an insulating layer is arranged on the outside of the cable core, the insulating layer is made of PVC insulating material, the filling layer wraps the inner PP rope, the first spring and the cable core, a second spring is arranged on the outside of the filling layer, an inner sheath is arranged on the outside of the second spring, the inner sheath wraps the second spring and the filling layer, a high-temperature resistant layer is arranged on the outside of the inner sheath, and the high-temperature resistant layer is made of fire-resistant mica tape.
[0007] In a preferred embodiment of the present invention, the outer sheath and the inner sheath are made of flexible polyvinyl chloride.
[0008] In a preferred embodiment of the present invention, a fireproof layer is arranged outside the high temperature resistant layer, and the fireproof layer is made of a highly flame retardant and fire resistant wrapping tape.
[0009] In a preferred embodiment of the present invention, a fiber layer is arranged outside the fireproof layer, and the fiber layer is made of glass fiber.
[0010] In a preferred embodiment of the present invention, a waterproof layer is arranged outside the fiber layer, and the waterproof layer is made of rubber.
[0011] In a preferred embodiment of the present utility model, an annular groove is provided on the outer sheath, a protective collar is provided on the annular groove, and the protective collar is made of rigid polyvinyl chloride.
[0012] In a preferred embodiment of the present invention, the outer sides of the outer sheath and the protective collar are coated with fire retardant coating.
[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.
[0014] Beneficial effects: The inner PP rope inside the cable makes the cable more flexible and is not prone to internal breakage, making it easy to carry and use. The outer sheath and the inner sheath are made of flexible polyvinyl chloride, so that both the inside and outside of the cable are highly flexible. Through the action of the first spring and the second spring inside, the cable will automatically recover after bending, so it is not easy to deform. The high-temperature resistant layer has a good high-temperature resistance, the fireproof layer has a good fireproof effect, the fiber layer improves the heat resistance and flame retardancy of the cable, the waterproof layer makes the cable waterproof, prevents moisture from penetrating into the fireproof layer, and is coated with fireproof paint to enhance the fireproof effect of the cable.
[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0017] Figure 1 This is a schematic diagram of the main structure of a highly flexible cable for wind power generation;
[0018] Figure 2 This is a schematic diagram of the mid-plane structure of a highly flexible cable for wind power generation;
[0019] Figure 3 A schematic diagram of the inner and outer installation structure of the filling layer in a highly flexible cable for wind power generation;
[0020] Figure 4 This is a schematic diagram of the outer structure of the inner PP rope in a highly flexible cable for wind power generation.
[0021] In the figure: 1. inner PP rope; 11. cable core; 12. insulation layer; 13. filling layer; 14. inner sheath; 2. high temperature resistant layer; 21. fireproof layer; 22. fiber layer; 23. waterproof layer; 3. outer sheath; 31. protective collar; 32. annular groove; 33. fire retardant coating; 4. first spring; 41. second spring. DETAILED DESCRIPTION
[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0023] Please refer to Figure 1-4 The utility model discloses a highly flexible cable for wind power generation, comprising an inner PP rope 1 and an outer sheath 3. The inner PP rope 1 is the internal structure of the soft cable. The inner PP rope 1 has high strength and strong flexibility, so that the cable has strong flexibility and is not easy to break inside, which is convenient for carrying and using. The outer sheath 3 is the outer structure of the cable, which is used to protect the cable. A cable core 11 is arranged around the inner PP rope 1. The cable core 11 is the main data transmission structure of the cable. An insulating layer 12 is arranged on the outside of the cable core 11. The insulating layer 12 is made of PVC insulating material. The insulating layer 12 is used to protect and insulate the cable core 11, so that the cable core 11 is well protected and is not prone to failure during use.
[0024] A first spring 4 is arranged on the outside of the inner PP rope 1, and a filling layer 13 is arranged on the outside of the first spring 4. The filling layer 13 wraps the inner PP rope 1, the first spring 4 and the cable core 11, so that the positions of the inner PP rope 1, the first spring 4 and the cable core 11 are fixed by the filling layer 13. A second spring 41 is arranged on the outside of the filling layer 13, and an inner sheath 14 is arranged on the outside of the second spring 41, that is, the second spring 41 and the filling layer 13 are wrapped by the inner sheath 14 to fix them. The outer sheath 3 and the inner sheath 14 are made of flexible polyvinyl chloride, so that both the inside and the outside of the cable have high flexibility. Through the action of the internal first spring 4 and the second spring 41, the cable will automatically recover after bending, so that it is not easy to deform. An annular groove 32 is arranged on the outer sheath 3, and a protective ring 31 is arranged on the annular groove 32, that is, the protective ring 31 is installed and fixed on the annular groove 32, and the protective ring 31 is made of hard polyvinyl chloride, so as to enhance the outer strength of the cable, and it is installed in sections, which has little effect on the flexibility of the cable.
[0025] A high temperature resistant layer 2 is arranged on the outside of the inner sheath 14. The high temperature resistant layer 2 is made of fire-resistant mica tape, so that the high temperature resistant layer 2 has a good high temperature resistance. A fireproof layer 21 is arranged on the outside of the high temperature resistant layer 2. The fireproof layer 21 is made of highly flame-retardant and fire-resistant wrapping tape material, so that the fireproof layer 21 has a good fireproof effect. A fiber layer 22 is arranged on the outside of the fireproof layer 21. The fiber layer 22 is made of glass fiber, that is, the heat resistance and flame retardancy of the cable are improved through the fiber layer 22. A waterproof layer 23 is arranged on the outside of the fiber layer 22. The waterproof layer 23 is made of rubber material, so that the cable has a waterproof effect through the waterproof layer 23 to prevent moisture from penetrating into the fireproof layer 21. The outer sheath 3 and the protective ring 31 are coated with fire retardant coating 33 to enhance the fireproof effect of the cable.
[0026] The working principle of the utility model is as follows: the inner PP rope 1 inside the cable makes the cable highly flexible and is not prone to internal breakage, making it easy to carry and use; the outer sheath 3 and the inner sheath 14 are made of flexible polyvinyl chloride material, so that both the inside and outside of the cable have high flexibility; through the action of the first spring 4 and the second spring 41 inside, the cable will automatically recover after bending, so that it is not prone to deformation; the outer sheath 3 protects the cable, and the insulating layer 12 protects and insulates the cable core 11, so that the cable core 11 is well protected and its It is not prone to malfunction during use. It is installed and fixed on the annular groove 32 through a protective collar 31, and the protective collar 31 is made of rigid polyvinyl chloride, thereby enhancing the outer strength of the cable and being installed in sections, which has little effect on the flexibility of the cable. The high-temperature resistant layer 2 has a good high-temperature resistance, the fireproof layer 21 has a good fireproof effect, the fiber layer 22 improves the heat resistance and flame retardancy of the cable, the waterproof layer 23 makes the cable waterproof, and prevents moisture from penetrating into the fireproof layer 21. The outer sheath 3 is coated with a fire-retardant coating 33 to enhance the fireproof effect of the cable.
[0027] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A highly flexible cable for wind power generation, comprising an inner PP rope (1) and an outer sheath (3), characterized in that: A cable core (11) is arranged around the inner PP rope (1); a first spring (4) is arranged on the outer side of the inner PP rope (1); a filling layer (13) is arranged on the outer side of the first spring (4); an insulating layer (12) is arranged on the outer side of the cable core (11); the insulating layer (12) is made of PVC insulating material; the filling layer (13) wraps the inner PP rope (1), the first spring (4) and the cable core (11); a second spring (41) is arranged on the outer side of the filling layer (13); an inner sheath (14) is arranged on the outer side of the second spring (41); the inner sheath (14) wraps the second spring (41) and the filling layer (13); a high temperature resistant layer (2) is arranged on the outer side of the inner sheath (14); the high temperature resistant layer (2) is made of fire resistant mica tape.
2. A highly flexible cable for wind power generation according to claim 1, characterized in that: The outer sheath (3) and the inner sheath (14) are made of flexible polyvinyl chloride material.
3. A highly flexible cable for wind power generation according to claim 1, characterized in that: A fireproof layer (21) is arranged outside the high temperature resistant layer (2), and the fireproof layer (21) is made of a highly flame retardant and fire resistant wrapping tape.
4. A highly flexible cable for wind power generation according to claim 3, characterized in that: A fiber layer (22) is arranged outside the fireproof layer (21), and the fiber layer (22) is made of glass fiber.
5. A highly flexible cable for wind power generation according to claim 4, characterized in that: A waterproof layer (23) is arranged on the outside of the fiber layer (22), and the waterproof layer (23) is made of rubber material.
6. A highly flexible cable for wind power generation according to claim 1, characterized in that: The outer sheath (3) is provided with an annular groove (32), the annular groove (32) is provided with a protective collar (31), and the protective collar (31) is made of a rigid polyvinyl chloride material.
7. A highly flexible cable for wind power generation according to claim 6, characterized in that: The outer sides of the outer sheath (3) and the protective collar (31) are coated with fire retardant coating (33).