Extra-high voltage steel-cored aluminum stranded wire

Abstract

The utility model discloses a kind of extra-high voltage steel-cored aluminium conductor, it relates to steel-cored aluminium conductor technical field, to solve the insufficient corrosion resistance of the internal structure of existing steel-cored aluminium conductor, long time in outdoor use can be seriously corroded, affect use Problem, its technical scheme main point is including strand main body, the outside sleeve joint of strand main body is provided with collar, one end of the outside of collar is fixedly connected with first connecting piece, the other end of the outside of collar is fixedly connected with second connecting piece, the inside of first connecting piece is provided with threaded hole, the inside of second connecting piece is provided with through-hole, the inside of through-hole is inserted with bolt, the inside of strand main body includes steel core main body, first anticorrosive layer, aluminium wire and second anticorrosive layer, the outside of steel core main body is provided with first anticorrosive layer, the outside of steel core main body is provided with aluminium wire, the outside of aluminium wire is provided with second anticorrosive layer. Reach the effect of convenient use and anticorrosion.

Description

Technical Field

[0001] This utility model relates to the field of steel-cored aluminum stranded wire technology, and in particular to an ultra-high voltage steel-cored aluminum stranded wire. Background Technology

[0002] Ultra-high voltage (UHV) steel-cored aluminum stranded wire is a conductor specifically designed for UHV transmission lines. It is an upgraded type of steel-cored aluminum stranded wire (ACSR) and is used to carry large-capacity electrical energy transmission at ultra-high voltage (usually AC 1000kV and above or DC ±800kV and above). UHV steel-cored aluminum stranded wire is the "blood vessel" of the UHV power grid, balancing conductivity and mechanical strength. It is one of the core technologies for achieving long-distance, large-capacity, and low-loss power transmission. Steel-cored aluminum stranded wire is suitable for laying in various environments. It can be used for overhead lines in plains, mountains, and hilly areas, and even for laying across rivers and valleys in special geographical conditions.

[0003] The existing technical solutions mentioned above have the following drawbacks: the internal structure of the existing steel-cored aluminum stranded wire is not sufficiently corrosion-resistant, and it will be severely corroded when used outdoors for a long time, affecting its use. Utility Model Content

[0004] The purpose of this utility model is to provide an ultra-high voltage steel-cored aluminum stranded wire.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A type of ultra-high voltage steel-cored aluminum stranded wire includes a stranded wire body. A collar is sleeved on the outer side of the stranded wire body. A first connector is fixedly connected to one end of the outer side of the collar, and a second connector is fixedly connected to the other end of the outer side of the collar. The first connector has a threaded hole inside, and the second connector has a through hole inside. A bolt is inserted into the through hole. The interior of the stranded wire body includes a steel core body, a first anti-corrosion layer, an aluminum wire, and a second anti-corrosion layer. The outer side of the steel core body is provided with the first anti-corrosion layer, the outer side of the steel core body is provided with the aluminum wire, and the outer side of the aluminum wire is provided with the second anti-corrosion layer. The interior of the steel core body includes a first steel wire, a second steel wire, and a third anti-corrosion layer. The outer side of the first steel wire is provided with the second steel wire, and the outer sides of both the first and second steel wires are provided with the same third anti-corrosion layer.

[0007] By adopting the above technical solution, a collar is added to the outside of the stranded wire body. The number of collars can be selected according to actual needs to lock the outside of the stranded wire and prevent it from loosening. At the same time, the collar can be locked and fixed with bolts, which can further improve the locking force of the stranded wire and improve its practicality. An anti-corrosion layer is added. The first anti-corrosion layer is epoxy resin, the second anti-corrosion layer is conductive anti-corrosion grease, and the third anti-corrosion layer is galvanized layer. All of them are coated on the surface to improve the anti-corrosion ability of each steel wire and aluminum wire and improve the internal and external anti-corrosion effect.

[0008] Furthermore, multiple aluminum wires are provided, and the multiple aluminum wires are spirally wound around the outside of the steel core body, and the bolts and threaded holes are threadedly connected.

[0009] By adopting the above technical solution, the structural strength is improved by adding multiple aluminum wires for wrapping.

[0010] Furthermore, the first steel wire is placed at the center of the steel core body, and multiple second steel wires are provided, with the multiple second steel wires spirally wound around the outside of the first steel wire.

[0011] By adopting the above technical solutions, the structural strength of the steel core body is improved.

[0012] In summary, the beneficial technical effects of this utility model are as follows:

[0013] It adopts a steel core body, aluminum wire, anti-corrosion layer and collar. The collar is locked on the outside of the stranded wire body to prevent the stranded wire from loosening. The steel wire and aluminum wire are spirally wound in multiple ways, which can improve the structural strength. At the same time, each steel wire and aluminum wire is treated with anti-corrosion to improve the anti-corrosion performance, resulting in convenient use and anti-corrosion effect. Attached Figure Description

[0014] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the main stranded wire structure of this utility model;

[0016] Figure 3 This is a cross-sectional view of the main body of the steel core of this utility model.

[0017] In the diagram, 1. Stranded wire body; 2. Steel core body; 3. First anti-corrosion layer; 4. Aluminum wire; 5. Second anti-corrosion layer; 6. Collar; 7. First connector; 8. Second connector; 9. Through hole; 10. Threaded hole; 11. Bolt; 21. First steel wire; 22. Second steel wire; 23. Third anti-corrosion layer. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Reference Figure 1-3 A type of ultra-high voltage steel-cored aluminum stranded wire includes a stranded wire body 1. The stranded wire body 1 internally includes a steel core body 2, a first anti-corrosion layer 3, an aluminum wire 4, and a second anti-corrosion layer 5. The first anti-corrosion layer 3 is disposed on the outer side of the steel core body 2, the aluminum wire 4 is disposed on the outer side of the steel core body 2, and the second anti-corrosion layer 5 is disposed on the outer side of the aluminum wire 4. A collar 6 is sleeved on the outer side of the stranded wire body 1. A first connector 7 is fixedly connected to one end of the outer side of the collar 6, and a second connector 8 is fixedly connected to the other end of the outer side of the collar 6. A threaded hole 10 is opened inside the first connector 7, and a through hole 9 is opened inside the second connector 8. A bolt 11 is inserted into the through hole 9. A collar 6 is added to the outside of the stranded wire body 1. The number of collars 6 can be selected according to actual needs. The outer side of the stranded wire can be locked to prevent the stranded wire from loosening. At the same time, the collar 6 can be locked and fixed by the bolt 11, which can further improve the locking force of the stranded wire, improve practicality, and add anti-corrosion layers. The first anti-corrosion layer 3 is epoxy resin, the second anti-corrosion layer 5 is conductive anti-corrosion grease, and the third anti-corrosion layer 23 is a zinc plating layer. All of them are coated on the surface to improve the anti-corrosion ability of each steel wire and aluminum wire 4, thereby improving the anti-corrosion ability of the stranded wire itself.

[0020] like Figure 1-3 As shown, the interior of the steel core body 2 includes a first steel wire 21, a second steel wire 22, and a third anti-corrosion layer 23. The second steel wire 22 is provided on the outside of the first steel wire 21, and the same third anti-corrosion layer 23 is provided on the outside of both the first steel wire 21 and the second steel wire 22. Multiple aluminum wires 4 are provided, and the multiple aluminum wires 4 are spirally wound on the outside of the steel core body 2. Bolts 11 and threaded holes 10 are threadedly connected. The first steel wire 21 is placed at the center of the steel core body 2, and multiple second steel wires 22 are provided, and the multiple second steel wires 22 are spirally wound on the outside of the first steel wire 21.

[0021] The implementation principle of this embodiment is as follows: the stranded wire body 1 is composed of a steel core body 2 and an aluminum wire 4. The steel core body 2 is composed of multiple steel wires wound together. Multiple aluminum wires 4 are spirally wound on the outside of the steel core body 2 to increase the overall structural strength. At the same time, a collar 6 is added to the outside of the stranded wire body 1 to lock the outside of the stranded wire and prevent the stranded wire from loosening. In addition, multiple anti-corrosion layers are added to the outside of the aluminum wires 4 and the steel wires to improve the internal anti-corrosion effect.

[0022] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. An ultra-high voltage steel-cored aluminum stranded wire, comprising a stranded wire body (1), characterized in that: A collar (6) is sleeved on the outside of the stranded wire body (1). A first connector (7) is fixedly connected to one end of the collar (6), and a second connector (8) is fixedly connected to the other end of the collar (6). A threaded hole (10) is opened inside the first connector (7), and a through hole (9) is opened inside the second connector (8). A bolt (11) is inserted into the through hole (9). The interior of the stranded wire body (1) includes a steel core body (2), a first anti-corrosion layer (3), an aluminum wire (4), and a second... The steel core body (2) is provided with a first anti-corrosion layer (3) on the outside of the steel core body (2), and an aluminum wire (4) is provided on the outside of the steel core body (2). The aluminum wire (4) is provided with a second anti-corrosion layer (5) on the outside of the aluminum wire (4). The interior of the steel core body (2) includes a first steel wire (21), a second steel wire (22) and a third anti-corrosion layer (23). The first steel wire (21) is provided with a second steel wire (22) on the outside of the first steel wire (21). The first steel wire (21) and the second steel wire (22) are both provided with the same third anti-corrosion layer (23).

2. The ultra-high voltage steel-cored aluminum stranded wire according to claim 1, characterized in that: Multiple aluminum wires (4) are provided, and multiple aluminum wires (4) are spirally wound around the outside of the steel core body (2). The bolts (11) and threaded holes (10) are threadedly connected.

3. The ultra-high voltage steel-cored aluminum stranded wire according to claim 1, characterized in that: The first steel wire (21) is placed at the center of the steel core body (2), and multiple second steel wires (22) are provided, with multiple second steel wires (22) spirally wound around the outside of the first steel wire (21).

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