A tensile and corrosion-resistant power transmission cable

Abstract

This utility model provides a tensile and corrosion-resistant power transmission cable, relating to the field of cable technology, comprising: a core transmission layer, a shielding protection layer, a structural reinforcement layer, and an outer protective layer; the core transmission layer includes a conductor layer, an inner insulation layer, and a semi-conductive buffer layer; the shielding protection layer includes a metallic shielding layer, a heat insulation protection layer, and a waterproof and moisture-proof layer; the structural reinforcement layer includes a filler layer, an armor reinforcement layer, and a stress relief layer; the outer protective layer includes a wear-resistant and corrosion-resistant layer, a marking and warning layer, and a UV-resistant layer. This utility model can disperse external forces, enabling the cable to withstand greater tensile and mechanical forces, improving tensile strength, and making it suitable for complex working conditions. The wear-resistant and corrosion-resistant layer of the outer protective layer resists chemical corrosion, the marking and warning layer facilitates identification and maintenance, and the UV-resistant layer prevents aging, significantly improving the cable's corrosion resistance and weather resistance, extending its service life, and reducing maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a tensile-resistant and corrosion-resistant power transmission cable. Background Technology

[0002] In today's era of rapid digital and intelligent development, electricity, as the core energy source for modern society, is crucial for stable and efficient transmission in areas such as urban construction, industrial production, and communication networks. Power transmission cables, as a key carrier of electricity transmission, are widely used in the construction and operation of various infrastructure projects.

[0003] However, traditional power transmission cables still have the following problems: 1. Traditional power transmission cables have insufficient tensile strength. In scenarios such as mining and long-distance overhead power transmission, conductor breakage is likely to occur due to mechanical traction, their own weight, and wind force, threatening the stability of power transmission; 2. Traditional power transmission cables have poor corrosion resistance. They are prone to aging and damage when exposed to industrial wastewater and marine salt, leading to internal corrosion, leakage, short circuit accidents, and shortening the service life of the cable. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a tensile and corrosion-resistant power transmission cable that can solve the technical problems of insufficient tensile strength and poor corrosion resistance in the prior art.

[0005] This utility model embodiment proposes a tensile-resistant and corrosion-resistant power transmission cable, comprising: a core transmission layer, a shielding protection layer, a structural reinforcement layer, and an outer protective layer; The core transmission layer includes a conductor layer, an inner insulating layer, and a semi-conductive buffer layer; The shielding and protective layer includes a metal shielding layer, a heat insulation protective layer, and a waterproof and moisture-proof layer; The structural reinforcement layer includes a filler layer, an armor reinforcement layer, and a stress relief layer; The outer protective layer includes a wear-resistant and corrosion-resistant layer, a marking and warning layer, and a UV-resistant layer.

[0006] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following: In this embodiment of the invention, the conductor layer in the core transmission layer ensures efficient power transmission; the inner insulation layer and the semi-conductive buffer layer work together to effectively prevent leakage and local electric field concentration, ensuring the stability and safety of power transmission; the metal shielding layer in the shielding protection layer shields electromagnetic interference; the heat insulation protection layer blocks heat; and the waterproof and moisture-proof layer isolates moisture, providing comprehensive protection for the internal structure of the cable and reducing the impact of external factors on power transmission; the filling layer fills the gaps to enhance overall integrity; the armor reinforcement layer provides high-strength support; and the stress relief layer disperses external forces, enabling the cable to withstand greater tensile and mechanical forces, improving tensile strength and making it suitable for complex working conditions; the wear-resistant and corrosion-resistant layer of the outer protective layer resists chemical corrosion; the marking and warning layer facilitates identification and maintenance; and the UV-resistant layer prevents aging, significantly improving the cable's corrosion resistance and weather resistance, extending its service life, and reducing maintenance costs. Attached Figure Description

[0007] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention. Throughout the drawings, the same reference numerals denote the same components. Obviously, the drawings described below are merely some embodiments of this invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0008] Figure 1 This is a structural schematic diagram of a tensile-resistant and corrosion-resistant power transmission cable provided in an embodiment of this utility model.

[0009] Figure 2 This is a schematic diagram of the core transmission layer of a tensile-resistant and corrosion-resistant power transmission cable provided in an embodiment of this utility model.

[0010] Figure 3 This is a schematic diagram of the structure of a shielding protective layer for a tensile-resistant and corrosion-resistant power transmission cable provided in an embodiment of this utility model.

[0011] Figure 4 This is a structural diagram of a tensile-resistant and corrosion-resistant power transmission cable reinforcement layer provided in an embodiment of this utility model.

[0012] Figure 5 This is a schematic diagram of the structure of the outer protective layer of a tensile-resistant and corrosion-resistant power transmission cable provided in an embodiment of this utility model.

[0013] Explanation of reference numerals in the attached diagram: 1-Core transmission layer; 2-Shielding protection layer; 3-Structural reinforcement layer; 4-Outer protective layer; 11-Conductor layer; 12-Inner insulation layer; 13-Semi-conductive buffer layer; 21-Metallic shielding layer; 22-Heat insulation protection layer; 23-Waterproof and moisture-proof layer; 31-Filling layer; 32-Armor reinforcement layer; 33-Stress relief layer; 41-Wear-resistant and corrosion-resistant layer; 42-Identification and warning layer; 43-UV resistant layer. Detailed Implementation

[0014] To enable those skilled in the art to better understand the technical solutions in the embodiments of this utility model, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0015] Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts disclosed in this utility model.

[0016] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention.

[0017] Reference manual attached Figures 1 to 5 The diagram shows a structural schematic of a tensile-resistant and corrosion-resistant power transmission cable provided in an embodiment of the present invention.

[0018] The present invention provides a structure for a tensile-resistant and corrosion-resistant power transmission cable, comprising: a core transmission layer 1, a shielding protection layer 2, a structural reinforcement layer 3, and an outer protective layer 4. The core transmission layer 1 includes a conductor layer 11, an inner insulating layer 12, and a semiconductive buffer layer 13; The shielding and protective layer 2 includes a metal shielding layer 21, a heat insulation and protective layer 22, and a waterproof and moisture-proof layer 23; The structural reinforcement layer 3 includes a filler layer 31, an armor reinforcement layer 32, and a stress relief layer 33; The outer protective layer 4 includes a wear-resistant and corrosion-resistant layer 41, a marking and warning layer 42, and an ultraviolet-resistant layer 43.

[0019] In this embodiment of the utility model, the conductor layer 11 in the core transmission layer 1 ensures efficient power transmission. The inner insulation layer 12 and the semi-conductive buffer layer 13 work together to effectively prevent leakage and local electric field concentration, ensuring the stability and safety of power transmission. The metal shielding layer 21 in the shielding protection layer 2 shields electromagnetic interference, the heat insulation protection layer 22 blocks heat, and the waterproof and moisture-proof layer 23 isolates moisture, providing all-round protection for the internal structure of the cable and reducing the impact of external factors on power transmission. The filling layer 31 fills the gaps to enhance the overall integrity, the armor reinforcement layer 32 provides high-strength support, and the stress relief layer 33 disperses external forces, enabling the cable to withstand greater tensile and mechanical forces, improving tensile strength and making it suitable for complex working conditions. The wear-resistant and corrosion-resistant layer 41 of the outer protective layer 4 resists chemical corrosion, the marking and warning layer 42 facilitates identification and maintenance, and the UV-resistant layer 43 prevents aging, greatly improving the cable's corrosion resistance and weather resistance, extending its service life, and reducing maintenance costs.

[0020] In one possible implementation, the inner insulation layer 12 is tightly attached to the outer surface of the conductor layer 11, and the semiconductive buffer layer 13 is tightly attached to the outer surface of the inner insulation layer 12; the metal shielding layer 21 surrounds the outer surface of the semiconductive buffer layer 13, the heat insulation protective layer 22 is attached to the outer surface of the metal shielding layer 21, and the waterproof and moisture-proof layer 23 is attached to the outer surface of the heat insulation protective layer 22; the filling layer 31 is filled between the waterproof and moisture-proof layer 23 and the armor reinforcement layer 32 and is in close contact with both, the armor reinforcement layer 32 is disposed on the outer surface of the filling layer 31 and is tightly connected to the filling layer 31, and the stress relief layer 33 is attached to the outer surface of the armor reinforcement layer 32; the wear-resistant and corrosion-resistant layer 41 covers the outer surface of the stress relief layer 33, the marking and warning layer 42 is disposed on the outer surface of the wear-resistant and corrosion-resistant layer 41, and the UV-resistant layer 43 is coated on the outer surface of the marking and warning layer 42.

[0021] In this embodiment of the invention, the inner insulation layer 12 is tightly bonded to the conductor layer 11, and the semi-conductive buffer layer 13 is then tightly bonded to the inner insulation layer 12, preventing air or moisture from seeping into the gaps, effectively avoiding partial discharge and electric field distortion, improving insulation performance, and ensuring safe and stable power transmission. The metal shielding layer 21, the heat insulation layer 22, and the waterproof and moisture-proof layer 23 are sequentially bonded together, forming a multi-layered barrier of electromagnetic shielding, heat insulation, and waterproofing. The metal shielding layer 21 blocks electromagnetic interference, the heat insulation layer 22 reduces heat conduction, and the waterproof and moisture-proof layer 23 isolates moisture, thus improving overall protection performance and reducing the impact of the external environment on the cable. Due to the influence of external forces, the filler layer 31 fills the gaps and makes close contact with the armor reinforcement layer 32, so that the armor reinforcement layer 32 can bear external forces more evenly. The stress relief layer 33 is attached to the armor reinforcement layer 32, effectively dispersing stress concentration points, improving the tensile strength of the cable, and maintaining structural integrity even under complex external force environments. The wear-resistant and corrosion-resistant layer 41, the marking and warning layer 42, and the UV-resistant layer 43 are stacked layer by layer. The wear-resistant and corrosion-resistant layer 41 resists chemical corrosion and mechanical wear, the marking and warning layer 42 facilitates identification and maintenance, and the UV-resistant layer 43 prevents aging, thereby improving the cable's corrosion resistance, weather resistance, and service life.

[0022] In one possible implementation, the conductor layer 11 is made of high-purity copper.

[0023] In this embodiment of the invention, high-purity copper has a higher conductivity than ordinary copper, resulting in less energy loss during current transmission.

[0024] In one possible implementation, the inner insulation layer 12 is made of ethylene propylene rubber.

[0025] In this embodiment of the invention, ethylene propylene rubber has extremely high volume resistivity and breakdown field strength, which can effectively prevent current leakage, reduce power loss, and ensure safe and reliable power transmission.

[0026] In one possible implementation, the semiconductive buffer layer 13 is made of a polymer material containing conductive carbon black and conductive filler.

[0027] In this embodiment of the invention, conductive carbon black is uniformly dispersed in the polymer matrix, which stabilizes the surface resistivity of the semiconductive buffer layer 13 and effectively eliminates the electric field concentration phenomenon between the inner insulating layer 12 and the metal shielding layer 21.

[0028] In one possible implementation, the metal shielding layer 21 is made of woven aluminum wire.

[0029] In this embodiment of the invention, the aluminum wire braided structure forms a continuous conductive network, which can effectively suppress electromagnetic interference, ensure stable signal transmission of the cable in a strong electromagnetic environment, and reduce data distortion and power loss.

[0030] In one possible implementation, the filler layer 31 is made of polypropylene rope material.

[0031] In this embodiment of the invention, the filling layer 31 is made of polypropylene rope material, which has low density and high tensile strength. While filling the gaps, it is in close contact with the armor reinforcement layer 32, so that the armor reinforcement layer 32 can bear external forces more evenly.

[0032] In one possible implementation, the armor reinforcement layer 32 is a steel strip armor.

[0033] In this embodiment of the invention, the armor reinforcement layer 32 is a steel strip armor, and its annular winding structure improves the radial compressive strength and axial tensile strength of the cable.

[0034] In one possible implementation, the wear-resistant and corrosion-resistant layer 41 is made of polyvinyl chloride material.

[0035] In this embodiment of the invention, polyvinyl chloride (PVC) exhibits excellent chemical stability, strong resistance to common acid, alkali, and salt solutions, and improved corrosion resistance. At the same time, PVC has high surface hardness and outstanding wear resistance, effectively resisting external wear from sand and gravel friction and mechanical scratching.

[0036] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the preferred embodiments; however, those skilled in the art can fully understand this utility model without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, and not to limit it. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tensile and corrosion resistant power transmission cable, characterized in that, include: Core transmission layer, shielding and protection layer, structural reinforcement layer and outer protection layer; The core transmission layer includes a conductor layer, an inner insulating layer, and a semi-conductive buffer layer; The shielding and protective layer includes a metal shielding layer, a heat insulation protective layer, and a waterproof and moisture-proof layer; The structural reinforcement layer includes a filler layer, an armor reinforcement layer, and a stress relief layer; The outer protective layer includes a wear-resistant and corrosion-resistant layer, a marking and warning layer, and a UV-resistant layer.

2. The corrosion resistant tensile strength power transmission cable of claim 1, wherein, The inner insulating layer is tightly attached to the outer surface of the conductor layer, and the semiconductive buffer layer is tightly attached to the outer surface of the inner insulating layer. The metal shielding layer surrounds the outer surface of the semiconductive buffer layer, the heat insulation protective layer is attached to the outer surface of the metal shielding layer, and the waterproof and moisture-proof layer is attached to the outer surface of the heat insulation protective layer. The filling layer is filled between the waterproof and moisture-proof layer and the armor reinforcement layer and is in close contact with both. The armor reinforcement layer is disposed on the outer surface of the filling layer and is in close connection with the filling layer. The stress relief layer is attached to the outer surface of the armor reinforcement layer. The wear-resistant and corrosion-resistant layer is wrapped around the outer surface of the stress relief layer, the marking and warning layer is set on the outer surface of the wear-resistant and corrosion-resistant layer, and the UV-resistant layer is coated on the outer surface of the marking and warning layer.

3. The corrosion resistant tensile strength power transmission cable of claim 1, wherein, The conductor layer is made of high-purity copper.

4. The tensile-resistant and corrosion-resistant power transmission cable according to claim 1, characterized in that, The inner insulation layer is made of ethylene propylene rubber.

5. The tensile-resistant and corrosion-resistant power transmission cable according to claim 1, characterized in that, The semi-conductive buffer layer is made of a polymer material containing conductive carbon black and conductive filler.

6. The tensile-resistant and corrosion-resistant power transmission cable according to claim 1, characterized in that, The metal shielding layer is made of woven aluminum wire.

7. The tensile-resistant and corrosion-resistant power transmission cable according to claim 1, characterized in that, The filling layer is made of polypropylene rope material.

8. The tensile-resistant and corrosion-resistant power transmission cable according to claim 1, characterized in that, The armor reinforcement layer is steel strip armor.

9. The tensile-resistant and corrosion-resistant power transmission cable according to claim 1, characterized in that, The wear-resistant and corrosion-resistant layer is made of polyvinyl chloride.

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