CN214897789U

CN214897789U - Corrugated argon arc welding aluminum alloy power cable with armored structure

Info

Publication number: CN214897789U
Application number: CN202120526364.9U
Authority: CN
Inventors: 姜志芹; 张江江; 巴洪杰; 刘华三; 张峻岭; 房鹏; 李南
Original assignee: Shandong Wanda Cable Co ltd; Wanda Group Co Ltd
Current assignee: Shandong Wanda Cable Co ltd; Wanda Group Co Ltd
Priority date: 2021-03-13
Filing date: 2021-03-13
Publication date: 2021-11-26
Anticipated expiration: 2031-03-13

Abstract

The utility model relates to the technical field of power cables, in particular to a corrugated argon arc welding aluminum alloy strip armored power cable, which comprises a cable core, a wrapping layer, an inner sheath layer, an argon arc welding aluminum alloy strip armored layer and an outer sheath layer from inside to outside in sequence; the outer wall of the outer sheath layer is square, and the inner wall of the outer sheath layer is round; the argon arc welding aluminum alloy belt armor layer is composed of an annular corrugated structure surrounding the inner wall of the outer sheath layer by one circle, the inner wall of the outer sheath layer is fixedly connected with wave crests of the annular corrugated structure, the outer wall of the inner sheath layer is fixedly connected with wave troughs of the annular corrugated structure, and the argon arc welding aluminum alloy belt armor layer is welded by adopting an argon arc welding process; the cable core includes many insulation core, and is adjacent two liang of circumscribed and each of insulation core all inscribes in around covering inner wall. The utility model provides high cable compressive property and security performance are convenient for obviously lay simultaneously.

Description

Corrugated argon arc welding aluminum alloy power cable with armored structure

Technical Field

The utility model belongs to the technical field of the power cable technique and specifically relates to just a corrugated type argon arc welds power cable of aluminum alloy strip armor structure.

Background

Electric energy is generally transmitted through cables, and the reliability of the cables is important to life and production of people. In order to enable the cable to bear radial pressure, a double-steel-tape gap wrapping process is usually adopted to manufacture the cable, and the manufactured cable is called a steel-tape armored cable. The steel tape armored cable is generally used in places with large bearing pressure, such as squares, highways with large vibration, railways and the like, and is suitable for geography, tunnels and pipe-penetrating laying. However, when the steel-tape armored cable is subjected to external destructive force, the safety performance is low, the resistance is poor, and the armored cable is easy to scratch the insulated wire core after being damaged to cause cable breakdown, so that the design of a cable with high performance and good tensile and pressure resistance is very necessary.

For example, chinese patent with application number CN201822243416.2 discloses a crosslinked polyethylene insulated aluminum alloy strip interlocked armored cable, wherein an aluminum alloy strip interlocked armor is fixedly disposed on the inner side of the cable protective layer, the aluminum alloy strip interlocked armor is composed of a plurality of V-shaped structures surrounding the inner wall of the protective layer for a circle, and the aluminum alloy strip interlocked armor is fixedly connected to the outer insulating wall at the end far away from the protective layer; all be provided with between protective layer and the insulating layer along the radial backup pad of dispersing the arrangement of cable body, the both ends of backup pad are fixed connection protective layer and insulating layer respectively, and the backup pad divides equally the contained angle that the V-arrangement structure in the chain armor of aluminum alloy strip formed. The structure of the chain armor of aluminum alloy area of V-arrangement makes the chain armor of aluminum alloy area can support between protective layer and insulating layer, makes the cable more difficult by extrusion deformation, increases the crushing resistance of cable. However, when the cable with the structure is subjected to pressure, the pressure is not very favorably dispersed and relieved, and meanwhile, a plurality of supporting plates matched with the V-shaped aluminum alloy strip interlocking armoring structure are added to the cable, so that the overall structure of the cable is more complicated, and the cable is not an optimal design in terms of processing and cost; the cable is round in shape, has a small contact surface with the fixing equipment during open laying, and is not easy to lay and install.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a corrugated type argon arc welds power cable of aluminum alloy strip armor structure has improved cable compressive property and security performance, is convenient for obviously lay simultaneously.

The utility model provides a technical scheme that its technical problem adopted is: a corrugated argon arc welding aluminum alloy power cable with an armored structure sequentially comprises a cable core, a wrapping layer, an inner sheath layer, an argon arc welding aluminum alloy armored layer and an outer sheath layer from inside to outside; the outer wall of the outer sheath layer is square, and the inner wall of the outer sheath layer is round; the argon arc welding aluminum alloy belt armor layer is composed of an annular corrugated structure surrounding the inner wall of the outer sheath layer by one circle, the inner wall of the outer sheath layer is fixedly connected with wave crests of the annular corrugated structure, the outer wall of the inner sheath layer is fixedly connected with wave troughs of the annular corrugated structure, and the argon arc welding aluminum alloy belt armor layer is welded by adopting an argon arc welding process; the cable core includes many insulation core, and is adjacent two liang of circumscribed and each of insulation core all inscribes in around covering inner wall.

The outer wall of the outer sheath layer is square, so that the cable has a square shape, and when the cable is laid clearly, the contact area and the friction force can be increased, so that the cable is convenient to install and lay; the inner wall of the outer sheath layer is fixedly connected with the wave crest of the annular corrugated structure, the outer wall of the inner sheath layer is fixedly connected with the wave trough of the annular corrugated structure, when the cable is subjected to external pressure and tensile force, the corrugated shape can disperse and transmit the received force more efficiently and rapidly, the action of relieving the stress is achieved, the mechanical performance of the cable is improved, and the maximum protection of the cable is realized; the argon arc welding aluminum alloy strip armor layer welded by the argon arc welding process can improve the structure and performance of the joint, so that the joint is firmer and more stable, and the residual deformation after welding is reduced, so that the cable structure is more stable.

And as optimization, filling layers are filled between the adjacent insulated wire cores and between the insulated wire cores and the wrapping layer.

Preferably, the argon arc welding aluminum alloy strip armor layer is made of a non-magnetic material, preferably a 5000 series aluminum alloy material.

The argon arc welding aluminum alloy strip armor layer is made of a non-magnetic material, so that eddy current generated when the cable is used can be eliminated, and the service life of the cable is prolonged; compared with the traditional steel tape armor, the 5000 series aluminum alloy material has light weight and strong corrosion resistance.

Preferably, the outer sheath layer is made of a halogen-free low-smoke flame-retardant material.

The halogen-free low-smoke flame-retardant material is a safe and environment-friendly material, improves the fireproof performance of the cable and enables the cable to have wider application.

Preferably, the insulated wire core comprises a plurality of first insulated wire cores and a plurality of second insulated wire cores, the first insulated wire core comprises a first conductor and an insulating layer coated outside the first conductor, and the second insulated wire core comprises a second conductor and an insulating layer coated outside the second conductor; the diameter of the first conductor is different from that of the second conductor in size.

Preferably, the number of the first insulated wire cores is 3-7, and the number of the second insulated wire cores is 1-3.

The utility model has the advantages that: compared with the prior art, the utility model discloses a power cable of corrugated type argon arc welding aluminum alloy strip armor structure, argon arc welding aluminum alloy strip armor adopt annular ripple shape structure can better decompose and transmit the power that the cable received, make the inner structure of cable more stable, the maximize protection cable core is not destroyed; when suffering from a fire, the corrugated shape can increase the heat dissipation area, quickly dissipate heat, improve the flame-retardant fire-resistant level of the cable and reduce the danger coefficient of the fire.

Drawings

Fig. 1 is a schematic view of the structure principle of the present invention.

Wherein, 1 cable core, 2 around covering, 3 inner sheath layers, 4 argon arc welding aluminium alloy area armor, 5 oversheath layers, 6 insulating core, 601 insulation core, 6011 conductor, 602 second insulating core, 6021 second conductor, 7 filling layers, 8 insulating layers, 9 annular ripple shape structures.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the present specification.

In the embodiment shown in fig. 1, the power cable with the corrugated argon arc welding aluminum alloy strip armor structure sequentially comprises a cable core 1, a wrapping layer 2, an inner sheath layer 3, an argon arc welding aluminum alloy strip armor layer 4 and an outer sheath layer 5 from inside to outside; the outer wall of the outer sheath layer 5 is square, and the inner wall of the outer sheath layer 5 is round; the argon arc welding aluminum alloy belt armor layer 4 is composed of an annular corrugated structure 9 surrounding the inner wall of an outer sheath layer 5 for one circle, the inner wall of the outer sheath layer 5 is fixedly connected with wave crests of the annular corrugated structure 9, the outer wall of the inner sheath layer 3 is fixedly connected with wave troughs of the annular corrugated structure 9, and the argon arc welding aluminum alloy belt armor layer 4 is welded by adopting an argon arc welding process; the cable core 1 comprises a plurality of insulating wire cores 6, and is adjacent to each other, every two adjacent insulating wire cores 6 are externally tangent and each insulating wire core 6 is internally tangent to the inner wall of the wrapping layer 2.

And filling layers 7 are filled between the adjacent insulated wire cores 6 and between the insulated wire cores 6 and the wrapping layer 2.

The argon arc welding aluminum alloy strip armor layer 4 is made of 5000 series aluminum alloy materials.

The outer sheath layer 5 is made of halogen-free low-smoke flame-retardant material.

The insulated wire core 6 comprises a plurality of first insulated wire cores 601 and a plurality of second insulated wire cores 602, wherein the first insulated wire cores 601 comprise a first conductor 6011 and an insulating layer 8 coated outside the first conductor 6011, and the second insulated wire cores 602 comprise a second conductor 6021 and the insulating layer 8 coated outside the second conductor 6021; the diameter of the first conductor 6011 is different from the diameter of the second conductor 6021.

The number of the first insulated wire cores 601 is 6, and the number of the second insulated wire cores 602 is 2.

When the utility model is used, compared with the traditional cylindrical cable, the cable adopting the square outer sheath layer 5 increases the contact area during installation, and is more convenient to operate and lay; meanwhile, the outer sheath layer 5 is made of halogen-free low-smoke flame-retardant materials and has excellent heat aging resistance, cold resistance, weather aging resistance and flame retardance; the argon arc welding aluminum alloy belt armor layer 4 consists of an annular corrugated structure 9 surrounding the inner wall of the outer sheath layer 5 for a circle, so that the overall structure of the cable is more stable, the rapid force dispersion and the multidirectional force transmission are facilitated when the cable is subjected to external pressure and tensile force, and the cable structure is protected from being damaged easily; the annular corrugated structure 9 is more convenient to dissipate heat in case of fire, improves the flame-retardant and fire-resistant grade of the cable, and ensures the use of the cable in different occasions; the argon arc welding aluminum alloy strip armor layer 4 welded and manufactured by adopting the argon arc welding process can improve the structure and the performance of the joint, so that the joint is firmer and more stable, and the residual deformation after welding is reduced, so that the cable structure is more stable.

The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but not limited to the product form and style of the above embodiments, any power cable with the armored structure of corrugated argon arc welding aluminum alloy strip according to the claims of the present invention and any suitable changes or modifications made by those skilled in the art should fall into the protection scope of the present invention.

Claims

1. The utility model provides a corrugated type argon arc welds power cable of aluminum alloy area armor structure which characterized in that: the cable comprises a cable core, a wrapping layer, an inner sheath layer, an argon arc welding aluminum alloy belt armor layer and an outer sheath layer from inside to outside in sequence; the outer wall of the outer sheath layer is square, and the inner wall of the outer sheath layer is round; the argon arc welding aluminum alloy belt armor layer is composed of an annular corrugated structure surrounding the inner wall of the outer sheath layer by one circle, the inner wall of the outer sheath layer is fixedly connected with wave crests of the annular corrugated structure, the outer wall of the inner sheath layer is fixedly connected with wave troughs of the annular corrugated structure, and the argon arc welding aluminum alloy belt armor layer is welded by adopting an argon arc welding process; the cable core includes many insulation core, and is adjacent two liang of circumscribed and each of insulation core all inscribes in around covering inner wall.

2. The power cable of the corrugated argon arc welding aluminum alloy strip armored structure according to claim 1, is characterized in that: and filling layers are filled between the adjacent insulated wire cores and between the insulated wire cores and the wrapping layer.

3. The power cable of the corrugated argon arc welding aluminum alloy strip armored structure according to claim 1, is characterized in that: the argon arc welding aluminum alloy strip armor layer is made of a non-magnetic material.

4. The power cable of the corrugated argon arc welding aluminum alloy strip armored structure according to claim 1, is characterized in that: the outer sheath layer is made of a halogen-free low-smoke flame-retardant material.

5. The power cable of the corrugated argon arc welding aluminum alloy strip armored structure according to any one of claims 1 to 4, characterized in that: the insulated wire core comprises a plurality of first insulated wire cores and a plurality of second insulated wire cores, each first insulated wire core comprises a first conductor and an insulating layer coated outside the first conductor, and each second insulated wire core comprises a second conductor and an insulating layer coated outside the second conductor; the diameter of the first conductor is different from that of the second conductor in size.

6. The power cable of the corrugated argon arc welding aluminum alloy strip armored structure according to claim 5, is characterized in that: the number of the first insulated wire cores is 3-7, and the number of the second insulated wire cores is 1-3.