CN210778008U - Anti-corrosion water-blocking crosslinked polyethylene insulated power cable - Google Patents

Abstract

The utility model discloses an anti-corrosion water-blocking crosslinked polyethylene insulated power cable, which comprises a cable core, a waterproof layer and an outer sheath; the cable core is wrapped with a shielding layer, a polyethylene layer is wrapped outside the shielding layer, supporting rods are uniformly distributed around the center of the polyethylene layer, the supporting rods are wrapped with the outer sheath, a waterproof layer is wrapped outside the outer sheath, and an asphalt anti-corrosion layer is wrapped outside the waterproof layer; the utility model discloses a set up polyethylene layer, waterproof layer and pitch anticorrosive coating for the cable has waterproof anticorrosion's effect, sets up the bracing piece of round simultaneously outside the polyethylene layer, and the material of bracing piece uses water absorbent resin, makes even outer damaged, and the drop of water or the water smoke of infiltration can be absorbed by the water absorbent resin bracing piece, thereby water-proof effects is better.

Description

Anti-corrosion water-blocking crosslinked polyethylene insulated power cable

Technical Field

The utility model belongs to the power cable field, concretely relates to anticorrosion crosslinked polyethylene insulation power cable that blocks water.

Background

With the rapid development of the power industry in China, the demand of power cables as the artery and the blood vessel for power transmission is increasing day by day. Among the various insulation forms of power cables, crosslinked polyethylene insulated power cables are a new, briskly developing army. Because the crosslinked cable is widely applied, the requirement on the adaptability of the environment is high, such as the characteristics of corrosion resistance, water resistance and the like are required.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an anticorrosion crosslinked polyethylene insulation power cable that blocks water.

The utility model provides a technical scheme is: an anti-corrosion water-blocking cross-linked polyethylene insulated power cable comprises a cable core, a waterproof layer and an outer sheath; the cable core has the shielding layer around the package, the shielding layer has the polyethylene layer outward around the package, the polyethylene layer has the bracing piece outward around central equipartition, the bracing piece has outward around the package the oversheath, the oversheath outside has the waterproof layer around the package, the waterproof layer outside has pitch anticorrosive coating around the package.

As an improvement of the utility model, the support rod is a water-absorbent resin support rod.

As an improvement of the utility model, the polyethylene layer with still be provided with the elastic buffer layer between the shielding layer.

As an improvement of the utility model, the shielding layer adopts the copper weaving layer.

As an improvement of the utility model, the thickness of the elastic buffer layer is not less than 1 mm.

Has the advantages that:

the utility model discloses a set up polyethylene layer, waterproof layer and pitch anticorrosive coating for the cable has waterproof anticorrosion's effect, sets up the bracing piece of round simultaneously outside the polyethylene layer, and the material of bracing piece uses water absorbent resin, makes even outer damaged, and the drop of water or the water smoke of infiltration can be absorbed by the water absorbent resin bracing piece, thereby water-proof effects is better.

Drawings

Fig. 1 is a schematic cross-sectional view of the cable of the present invention.

In the figure: the cable comprises a cable core 1, a waterproof layer 2, an outer sheath 3, a shielding layer 4, a polyethylene layer 5, a support rod 6, an asphalt anti-corrosion layer 7 and an elastic buffer layer 8.

Detailed Description

The embodiments of the present invention will be further explained with reference to the drawings.

As shown in fig. 1, the anti-corrosion water-blocking cross-linked polyethylene insulated power cable in the embodiment comprises a cable core 1, a waterproof layer 2 and an outer sheath 3, the cable core 1 is wrapped with a shielding layer 4, the shielding layer 4 is wrapped with a polyethylene layer 5, the polyethylene layer 5 is wrapped with a support rod 6 around the central uniform distribution, the support rod 6 is wrapped with the outer sheath 3, the outer side of the outer sheath 3 is wrapped with the waterproof layer 2, and the outer side of the waterproof layer 2 is wrapped with an asphalt anti-corrosion layer 7.

In this embodiment, the support rod 6 is a water-absorbent resin support rod, and even if the outer layer is damaged, the support rod made of the water-absorbent resin can completely absorb moisture to prevent water from entering. Polyethylene layer 5 with still be provided with elastic buffer layer 8 between shielding layer 4, elastic buffer layer 8's thickness is 2mm, shielding layer 4 adopts the copper weaving layer.

The utility model discloses a set up polyethylene layer 5, waterproof layer 2 and pitch anticorrosive coating 7 for the cable has waterproof anticorrosion's effect, sets up the bracing piece 6 of round simultaneously outside polyethylene layer 5, and the material of bracing piece 6 uses water-absorbent resin, makes even outer damage, and the drop of water or the water smoke of infiltration can be inhaled by water-absorbent resin bracing piece 6, thereby water-proof effects is better.

For convenience of description, the descriptions of directions such as "up", "down", "left", "right", "front", "back", etc. referred to herein are consistent with the left-right direction of the drawings, but do not limit the structure of the present invention; the above detailed description of the embodiments of the present invention is only for exemplary purposes, and the present invention is not limited to the above detailed description. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.

Claims (5)

1. The utility model provides an anticorrosion crosslinked polyethylene that blocks water insulation power cable, includes cable core (1), waterproof layer (2) and oversheath (3), its characterized in that:

cable core (1) has shielding layer (4) around the package, shielding layer (4) have polyethylene layer (5) around the package outward, polyethylene layer (5) have bracing piece (6) around central equipartition outward, bracing piece (6) have around the package outward oversheath (3), oversheath (3) outside has waterproof layer (2) around the package, waterproof layer (2) outside has pitch anticorrosive coating (7) around the package.

2. The anti-corrosion water-blocking crosslinked polyethylene insulated power cable according to claim 1, characterized in that:

the support rod (6) is made of water-absorbent resin.

3. The anti-corrosion water-blocking crosslinked polyethylene insulated power cable according to claim 1, characterized in that:

an elastic buffer layer (8) is further arranged between the polyethylene layer (5) and the shielding layer (4).

4. The anti-corrosion water-blocking crosslinked polyethylene insulated power cable according to claim 2, characterized in that:

the shielding layer (4) is a copper braid layer.

5. The anti-corrosion water-blocking crosslinked polyethylene insulated power cable according to claim 3, characterized in that:

the thickness of the elastic buffer layer (8) is not less than 1 mm.

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