CN216849417U - Saline-alkali corrosion resistant power cable - Google Patents

Abstract

The utility model provides a salt and alkali corrosion resistant power cable, includes the cable core, the cable core comprises a plurality of wires and a plurality of reinforcing ropes, the structure of wire is: the inner layer is a copper wire, the surface of the copper wire is plated with tin, a polytetrafluoroethylene insulating layer is arranged outside the copper wire, and high-strength fiber cloth is arranged outside the polytetrafluoroethylene insulating layer; the cable core is wrapped with a bidirectional stretching polyester film, a water-blocking fiber cloth is arranged outside the bidirectional stretching polyester film, an aluminum tape woven layer is arranged outside the water-blocking fiber cloth, a high silica fiber cloth is arranged outside the aluminum tape woven layer, a chlorohydrin rubber sheath layer is arranged outside the high silica fiber cloth, and a plurality of steel wire reinforcing ropes are arranged in the chlorohydrin rubber sheath layer. Through structural design and material selection, the prepared stable and reliable power cable has excellent saline-alkali corrosion resistance, is not easy to age in a large temperature difference environment, and ensures power transmission.

Description

Saline-alkali corrosion resistant power cable

Technical Field

The invention belongs to the technical field of cables, and particularly relates to a saline-alkali corrosion resistant power cable.

Background

The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater.

The northwest area of China has a large amount of saline and alkaline, and simultaneously has the problem of large temperature difference between day and night, and a common power cable is easy to age under the environment and low in durability, so that a power cable suitable for the area needs to be designed.

Disclosure of Invention

In order to meet the requirements, the invention provides a saline-alkali corrosion resistant power cable which has excellent saline-alkali corrosion resistance, is not easy to age in an environment with large temperature difference, and ensures the stability and reliability of power transmission.

The technical scheme adopted by the invention for solving the technical problems is as follows: saline-alkali corrosion resistant power cable, including the cable core, the cable core comprises a plurality of wires and a plurality of reinforcing ropes, the structure of wire is: the inner layer is a copper wire, the surface of the copper wire is plated with tin, a polytetrafluoroethylene insulating layer is arranged outside the copper wire, and high-strength fiber cloth is arranged outside the polytetrafluoroethylene insulating layer;

the cable core is wrapped with a bidirectional stretching polyester film, a water-blocking fiber cloth is arranged outside the bidirectional stretching polyester film, an aluminum tape woven layer is arranged outside the water-blocking fiber cloth, a high silica fiber cloth is arranged outside the aluminum tape woven layer, a chlorohydrin rubber sheath layer is arranged outside the high silica fiber cloth, and a plurality of steel wire reinforcing ropes are arranged in the chlorohydrin rubber sheath layer.

Preferably, the reinforcing rope is formed by weaving high-strength nylon fibers and phenolic fibers in a mixed mode.

Preferably, the high-strength fiber cloth is Kevlar fiber or ceramic fiber cloth.

Preferably, the number of the steel wire reinforced ropes is not less than 5.

Preferably, the thickness of the chlorohydrin rubber sheath layer is not less than 5 mm.

The sinle silk of wire is tinned wire, and the tinned wire material is softer, compares with bare copper line, and its corrosion resistance, oxidation resistance are stronger, can prolong the life of electric cable greatly, and polytetrafluoroethylene has very excellent corrosion resistance, is fabulous insulating layer material.

The reinforcing rope is used for improving the tensile strength of the cable core, and in the preferred scheme, the reinforcing rope is made of high-strength nylon fibers and phenolic fibers, and has fire resistance while high strength is ensured.

The biaxially oriented polyester film has good physical stability, mechanical strength and air tightness, is tough and wear-resistant, and can effectively protect a cable core.

The high silica fiber has excellent heat insulation performance, so that the inside of the cable keeps constant temperature, and the cable is corrosion-resistant and high in strength and can effectively protect internal materials.

The chlorohydrin rubber has good oil resistance, acid and alkali resistance, ozone resistance, flame resistance and atmospheric aging resistance, particularly has excellent high and low temperature resistance, is stable at the temperature of-40-150 ℃, is a very good outer sheath material, and can improve the overall strength and tensile property of the outer sheath by adding the steel wire reinforcing rope.

The invention has the beneficial effects that: through structural design and material selection, the prepared stable and reliable power cable has excellent saline-alkali corrosion resistance, is not easy to age in a large temperature difference environment, and ensures power transmission.

Drawings

The invention is further illustrated by the following figures and examples:

fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the structure of the lead.

In the figure: 1. the cable comprises a conducting wire, 1.1 copper wires, 1.2 polytetrafluoroethylene insulating layers, 1.3 high-strength fiber cloth, 2 reinforcing ropes, 3 biaxially oriented polyester films, 4 water-blocking fiber cloth, 5 aluminum tape woven layers, 6 high silica fiber cloth, 7 chlorohydrin rubber sheath layers and 8 steel wire reinforcing ropes.

Detailed Description

Fig. 1 and 2 show a power cable resistant to saline-alkali corrosion, in which: 1. the cable comprises a conducting wire, 1.1 copper wires, 1.2 polytetrafluoroethylene insulating layers, 1.3 high-strength fiber cloth, 2 reinforcing ropes, 3 biaxially oriented polyester films, 4 water-blocking fiber cloth, 5 aluminum tape woven layers, 6 high silica fiber cloth, 7 chlorohydrin rubber sheath layers and 8 steel wire reinforcing ropes.

Including the cable core, the cable core comprises a plurality of wires and a plurality of strengthening rope, the structure of wire is: the inner layer is a copper wire, the surface of the copper wire is plated with tin, a polytetrafluoroethylene insulating layer is arranged outside the copper wire, and high-strength fiber cloth is arranged outside the polytetrafluoroethylene insulating layer;

the cable core is wrapped with a bidirectional stretching polyester film, a water-blocking fiber cloth is arranged outside the bidirectional stretching polyester film, an aluminum belt woven layer is arranged outside the water-blocking fiber cloth, a high silica fiber cloth is arranged outside the aluminum belt woven layer, a chlorohydrin rubber sheath layer is arranged outside the high silica fiber cloth, and a plurality of steel wire reinforcing ropes are arranged in the chlorohydrin rubber sheath layer.

In this example, the reinforcing cords are made of a blend of high strength nylon fibers and phenolic fibers.

In this example, the high strength fiber cloth is a kevlar fiber or ceramic fiber cloth.

In this example, the number of the steel wire reinforcing cords is 10.

In this example, the epichlorohydrin rubber sheathing layer was 5 mm thick.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. Saline-alkali corrosion resistant power cable comprises a cable core and is characterized in that: the cable core comprises a plurality of wires and a plurality of strengthening ropes, the structure of wire is: the inner layer is a copper wire, the surface of the copper wire is plated with tin, a polytetrafluoroethylene insulating layer is arranged outside the copper wire, and high-strength fiber cloth is arranged outside the polytetrafluoroethylene insulating layer;

the cable core is wrapped with a bidirectional stretching polyester film, a water-blocking fiber cloth is arranged outside the bidirectional stretching polyester film, an aluminum tape woven layer is arranged outside the water-blocking fiber cloth, a high silica fiber cloth is arranged outside the aluminum tape woven layer, a chlorohydrin rubber sheath layer is arranged outside the high silica fiber cloth, and a plurality of steel wire reinforcing ropes are arranged in the chlorohydrin rubber sheath layer.

2. The saline-alkali corrosion resistant power cable according to claim 1, wherein: the number of the steel wire reinforcing ropes is not less than 5.

3. The saline-alkali corrosion resistant power cable according to claim 1, wherein: the thickness of the chlorohydrin rubber sheath layer is not less than 5 mm.

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