High-strength and high-conductivity overhead conductor

Abstract

The utility model relates to a high-strength high-conductivity overhead conductor which comprises an outer protective sleeve, a reinforcing assembly is fixedly installed inside the outer protective sleeve, a compression-resistant assembly is fixedly installed inside the reinforcing assembly, an insulating layer is fixedly installed inside the compression-resistant assembly, a reinforcing inner core is fixedly installed at the center position inside the insulating layer, and the reinforcing inner core is fixedly installed at the center position inside the reinforcing inner core. And six conductor cores are distributed at equal intervals in the insulating layer and around the reinforced inner core. According to the high-strength and high-conductivity overhead conductor, the wear-resistant layer, the corrosion-resistant layer and the outer tensile layer are arranged, the wear-resistant layer is made of a heat-resistant aluminum alloy material, and the conductor generally needs to have relatively high conductivity and strength, so that the heat-resistant aluminum alloy material has good heat resistance, and the requirements of long-distance and high-capacity power transmission are met; and the corrosion-resistant layer is made of a carbon fiber material, so that bending resistance and distortion resistance are provided for the wire, and meanwhile, the fatigue resistance of the corrosion-resistant layer is also beneficial to prolonging the service life of the wire.

Description

Technical Field

[0001] The utility model relates to the technical field of conductors, in particular to a high-strength and high-conductivity overhead conductor. Background Art

[0002] Overhead insulated conductors are lines that transmit electrical energy by erecting conductors at a certain height on towers. The insulation of overhead lines in high-voltage transmission and distribution networks from the ground is generally done by air. Previously, distribution lines generally used bare conductors, but due to the complex power distribution environment in urban areas, short circuits to grounding and lightning strikes often occur, resulting in reduced power supply reliability. Therefore, overhead lines below 10kV generally use insulated conductors, which are so-called insulated overhead lines.

[0003] When the existing overhead wires are in use, they are installed on a bracket and then fly to transmit current. During use, due to insufficient strength, they are easily damaged under the influence of external forces, thereby reducing the service life of the overhead insulated wires. Therefore, high-strength and high-conductivity overhead wires are proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a high-strength and high-conductivity overhead conductor, which has the advantages of good pressure resistance and tensile resistance, etc., and solves the problem that the existing overhead conductors are installed on brackets for overhead transmission of current during use, but are easily damaged due to insufficient strength and the influence of external forces, thereby reducing the service life of the overhead insulated conductors.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strength and high-conductivity overhead wire, comprising an outer protective sleeve, a reinforcement component is fixedly installed inside the outer protective sleeve, a pressure-resistant component is fixedly installed inside the reinforcement component, an insulating layer is fixedly installed inside the pressure-resistant component, a reinforcement inner core is fixedly installed at the inner center position of the insulation layer, and six conductor cores are distributed at equal distances inside the insulation layer and around the reinforcement inner core;

[0006] The outer protective cover comprises a wear-resistant layer located inside the outer protective cover, the inner wall of the wear-resistant layer is provided with a corrosion-resistant layer, and the inner wall of the corrosion-resistant layer is provided with an outer tensile layer;

[0007] The reinforcement assembly comprises an inner protective sleeve located inside the outer tensile layer, and a metal mesh is fixedly mounted on the inner wall of the inner protective sleeve;

[0008] The compression-resistant component comprises an inner tensile layer located on the inner wall of the metal mesh, the inner wall of the inner tensile layer is provided with a titanium-nickel alloy wire, and six cavities are provided inside the inner tensile layer and the titanium-nickel alloy wire.

[0009] Preferably, the wear-resistant layer is made of heat-resistant aluminum alloy, and the corrosion-resistant layer is made of carbon fiber material.

[0010] Preferably, the outer tensile layer is made of high-strength and fatigue-resistant Al-Mg-Si wire material.

[0011] Preferably, the interior of the insulating layer is filled with a filler located in the gap between the conductor cores, and the filler is made of a highly flexible plastic material, and the insulating layer is made of a cross-linked polyethylene material.

[0012] Preferably, the titanium-nickel alloy wires are arranged in a mesh shape inside the inner tensile layer, and the inner tensile layer is made of a high-temperature resistant hose.

[0013] Preferably, the inner protective sleeve is made of polyethylene material.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The high-strength and high-conductivity overhead conductor has good compression resistance during operation by arranging a reinforced inner core, a compression-resistant component and a reinforcement component, and maintains a long service life in harsh environments to avoid damage under the influence of external forces.

[0016] 2. The high-strength and high-conductivity overhead conductor is provided with a wear-resistant layer, a corrosion-resistant layer and an outer tensile layer. The wear-resistant layer is made of heat-resistant aluminum alloy. Since the conductor usually needs to have high conductivity and strength, the heat-resistant aluminum alloy has good heat resistance to meet the needs of long-distance and large-capacity power transmission. The corrosion-resistant layer is made of carbon fiber material to provide the conductor with anti-bending and anti-twisting capabilities. At the same time, its fatigue resistance also helps to improve the service life of the conductor, especially in an environment with strong winds or frequent mechanical stress. The setting of the outer tensile layer makes the conductor have excellent fatigue resistance and can maintain a longer vibration fatigue life under the condition of increased operating tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0018] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the outer protective cover of the utility model.

[0020] In the figure: 1. outer protective cover; 101. wear-resistant layer; 102. corrosion-resistant layer; 103. outer tensile layer; 2. reinforcement component; 201. inner protective cover; 202. metal mesh; 3. pressure-resistant component; 301. inner tensile layer; 302. titanium-nickel alloy wire; 303. cavity; 4. insulation layer; 5. reinforced inner core; 6. conductor core; 7. filler. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 The high-strength and high-conductivity overhead wire in this embodiment includes an outer protective sheath 1, a reinforcing component 2 is fixedly installed inside the outer protective sheath 1, a pressure-resistant component 3 is fixedly installed inside the reinforcing component 2, an insulating layer 4 is fixedly installed inside the pressure-resistant component 3, a reinforcing inner core 5 is fixedly installed at the inner center position of the insulating layer 4, and six conductor cores 6 are evenly distributed inside the insulating layer 4 and around the reinforcing inner core 5.

[0023] It should be noted that overhead wires are lines that transmit electrical energy by erecting wires at a certain height on towers. The insulation of overhead wires in high-voltage transmission and distribution networks to the ground generally relies on air, and the arrangements of the outer protective sheath 1, reinforcement component 2, pressure-resistant component 3, insulating layer 4, reinforced inner core 5 and conductor core 6 set above enable the wires to have good pressure resistance and maintain a long service life in harsh environments, thus avoiding damage caused by external forces.

[0024] The outer protective cover 1 comprises a wear-resistant layer 101 located inside the outer protective cover 1 , the inner wall of the wear-resistant layer 101 is provided with a corrosion-resistant layer 102 , and the inner wall of the corrosion-resistant layer 102 is provided with an outer tensile layer 103 .

[0025] The wear-resistant layer 101 is made of heat-resistant aluminum alloy, the corrosion-resistant layer 102 is made of carbon fiber material, and the outer tensile layer 103 is made of high-strength fatigue-resistant Al-Mg-Si conductor material.

[0026] Specifically, the wear-resistant layer 101 is made of heat-resistant aluminum alloy. Since the conductor usually needs to have high conductivity and strength, it is supported by heat-resistant aluminum alloy to meet the needs of long-distance and large-capacity power transmission; and the corrosion-resistant layer 102 is made of carbon fiber material to provide the conductor with anti-bending and anti-twisting capabilities; the setting of the outer tensile layer 103 makes the conductor have excellent fatigue resistance, and can maintain a longer vibration fatigue life under the condition of increased operating tension.

[0027] The reinforcement component 2 includes an inner protective sleeve 201 located inside the outer tensile layer 103 , and a metal mesh 202 is fixedly mounted on the inner wall of the inner protective sleeve 201 .

[0028] The inner protective sheath 201 is made of polyethylene material, so that the conductor has higher tensile strength and wear resistance, and also has good insulation performance; and the multiple twisted metal meshes 202 have higher tensile and torsional resistance, improving the tensile strength of the conductor core.

[0029] The pressure-resistant component 3 includes an inner tensile layer 301 located on the inner wall of the metal mesh 202 . The inner wall of the inner tensile layer 301 is provided with a titanium-nickel alloy wire 302 . Six cavities 303 are provided inside the inner tensile layer 301 and the titanium-nickel alloy wire 302 .

[0030] The titanium-nickel alloy wires 302 are arranged in a mesh shape inside the inner tensile layer 301 , and the inner tensile layer 301 is made of a high-temperature resistant hose.

[0031] Specifically, the designed titanium-nickel alloy wire 302 has good toughness, thereby increasing the strength of the conductor and making it less likely to break. The inner tensile layer 301 is made of a high-temperature resistant hose, which makes the conductor have good high-temperature resistance. It also has good fatigue resistance and tensile properties, which helps to improve the durability and reliability of the conductor.

[0032] The interior of the insulating layer 4 is filled with fillers 7 located at the gaps between the conductor cores 6, and the fillers 7 are made of a highly flexible plastic material, and the insulating layer 4 is made of a cross-linked polyethylene material.

[0033] Specifically, the provision of the filler 7 enhances the flexibility of the wire.

[0034] To sum up, the high-strength and high-conductivity overhead wire, by setting the reinforced inner core 5, the pressure-resistant component 3 and the reinforcement component 2, makes the wire have good pressure resistance during operation, and maintains a long service life in harsh environments, avoiding damage under the influence of external forces.

[0035] Furthermore, by providing a wear-resistant layer 101, a corrosion-resistant layer 102 and an outer tensile layer 103, the wear-resistant layer 101 is made of a heat-resistant aluminum alloy material. Since the conductor usually needs to have high conductivity and strength, the heat-resistant aluminum alloy material has good heat resistance to meet the needs of long-distance and large-capacity power transmission; and the corrosion-resistant layer 102 is made of a carbon fiber material to provide the conductor with anti-bending and anti-twisting capabilities. At the same time, its fatigue resistance also helps to improve the service life of the conductor, especially in an environment with strong winds or frequent mechanical stress; the provision of the outer tensile layer 103 enables the conductor to have excellent fatigue resistance and to maintain a longer vibration fatigue life under conditions of increased operating tension.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A high-strength and high-conductivity overhead conductor, comprising an outer protective sheath (1), characterized in that: A reinforcing component (2) is fixedly installed inside the outer protective sleeve (1), a pressure-resistant component (3) is fixedly installed inside the reinforcing component (2), an insulating layer (4) is fixedly installed inside the pressure-resistant component (3), a reinforcing inner core (5) is fixedly installed at the center position inside the insulating layer (4), and six conductor cores (6) are distributed at equal distances inside the insulating layer (4) and around the reinforcing inner core (5); The outer protective sleeve (1) comprises a wear-resistant layer (101) located inside the outer protective sleeve (1), the inner wall of the wear-resistant layer (101) is provided with a corrosion-resistant layer (102), and the inner wall of the corrosion-resistant layer (102) is provided with an outer tensile layer (103); The reinforcement component (2) comprises an inner protective sleeve (201) located inside the outer tensile layer (103), and a metal mesh (202) is fixedly mounted on the inner wall of the inner protective sleeve (201); The compression-resistant component (3) comprises an inner tensile layer (301) located on the inner wall of the metal mesh (202), the inner wall of the inner tensile layer (301) is provided with a titanium-nickel alloy wire (302), and six cavities (303) are provided inside the inner tensile layer (301) and the titanium-nickel alloy wire (302).

2. The high-strength and high-conductivity overhead conductor according to claim 1, characterized in that: The wear-resistant layer (101) is made of a heat-resistant aluminum alloy material, and the corrosion-resistant layer (102) is made of a carbon fiber material.

3. The high-strength and high-conductivity overhead conductor according to claim 1, characterized in that: The outer tensile layer (103) is made of a high-strength, fatigue-resistant Al-Mg-Si conductor material.

4. The high-strength and high-conductivity overhead conductor according to claim 1, characterized in that: The interior of the insulating layer (4) is filled with a filler (7) located at the gap between the conductor cores (6), and the filler (7) is made of a highly flexible plastic material, and the insulating layer (4) is made of a cross-linked polyethylene material.

5. The high-strength and high-conductivity overhead conductor according to claim 1, characterized in that: The titanium-nickel alloy wires (302) are arranged in a mesh shape inside the inner tensile layer (301), and the inner tensile layer (301) is made of a high-temperature resistant hose.

6. The high-strength and high-conductivity overhead conductor according to claim 1, characterized in that: The inner protective sleeve (201) is made of polyethylene material.

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