CN219872940U

CN219872940U - Anticorrosion radial water-blocking medium-voltage cable

Info

Publication number: CN219872940U
Application number: CN202321035357.4U
Authority: CN
Inventors: 曹振鹏; 简永平; 刘永光; 朱俊强; 周云
Original assignee: Jiangsu Yuancheng Cable Co ltd
Current assignee: Jiangsu Yuancheng Cable Co ltd
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-10-20
Anticipated expiration: 2033-05-04

Abstract

The utility model relates to the field of anti-corrosion radial water-blocking medium-voltage cable and preparation thereof, and discloses an anti-corrosion radial water-blocking medium-voltage cable. According to the utility model, a novel water-blocking material wrapping technology is adopted, so that the water-blocking effect of the cable is improved, the cable transmission reliability is improved, and the waterproof and corrosion-resistant performances of the cable are integrally improved by adopting an inert gas shielded welding technology and a welding spot cooling technology.

Description

Anticorrosion radial water-blocking medium-voltage cable

Technical Field

The utility model relates to the field of anti-corrosion radial water-blocking medium-voltage cables and preparation thereof, in particular to an anti-corrosion radial water-blocking medium-voltage cable.

Background

At present, the technical development of new energy sources is put in important agenda in development plans of all countries, the on-water photovoltaic and on-water photovoltaic projects are increased, and the power transmission technology is a key technology for restricting the development of on-water wind power and on-water photovoltaic. In a severe laying environment, requirements on the reliability and service life of cable transmission are higher and higher, and a structural protection layer of the cable plays a vital role in the reliability and service life of cable transmission. According to the method, the waterproof and anticorrosive medium-voltage power cable is researched and developed again by the company through researching and analyzing the existing materials, cable structures and cable electrical parameters.

The technical problem to be solved by the project is to meet the requirements, and provide a waterproof and anti-corrosion cable which adopts advanced design principles and material combination methods on the basis of meeting the requirements of common cables, so that the advanced high-corrosion-resistance and high-reliability power cable at home and abroad is developed.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides an anti-corrosion radial water-blocking medium-voltage cable.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a radial medium voltage cable that blocks water of anticorrosion, includes the filling layer, the inside of filling layer evenly is equipped with a plurality of semiconductive insulation shielding layers, semiconductive insulation shielding layer's inside all is equipped with copper conductor, the outside of copper conductor is the semiconductive conductor shielding layer of all fixedly connected with, semiconductive conductor shielding layer's outside is the crosslinked polyethylene insulating layer of all fixedly connected with, the outside of crosslinked polyethylene insulating layer corresponds fixed connection respectively at semiconductive insulation shielding layer's inner wall.

As a further description of the above technical solution:

the outer part of the semiconductive insulating shielding layer is fixedly connected with a metal shielding layer, and the outer parts of the metal shielding layer are respectively and correspondingly fixedly connected with the inner part of the filling layer.

As a further description of the above technical solution:

and the inner protective layer is fixedly connected with the outside of the filling layer.

As a further description of the above technical solution:

and an armor layer is fixedly connected to the outer part of the inner protective layer.

As a further description of the above technical solution:

and an outer protective layer is fixedly connected to the outer part of the armor layer.

The utility model has the following beneficial effects:

1. according to the utility model, a novel water-blocking material wrapping technology is adopted, so that the water-blocking effect of the cable is improved, and the cable transmission reliability is improved.

2. In the utility model, the inert gas shielded welding technology and the welding spot cooling technology are adopted, so that the waterproof and corrosion-resistant performances of the cable are integrally improved.

Drawings

Fig. 1 is an overall schematic diagram of an anti-corrosion radial water-blocking medium voltage cable according to the present utility model;

FIG. 2 is a schematic cross-sectional view of an anti-corrosion radial water-blocking medium voltage cable according to the present utility model;

fig. 3 is an internal schematic view of an anti-corrosion radial water-blocking medium voltage cable according to the present utility model.

Legend description:

1. copper conductor, 2, semiconductive conductor shielding layer, 3, crosslinked polyethylene insulating layer, 4, semiconductive insulating shielding layer, 5, metal shielding layer, 6, filling layer, 7, inner protection layer, 8, armor layer, 9, outer protection layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-3, one embodiment provided by the present utility model is: the utility model provides a radial medium voltage cable that blocks water of anticorrosion, including filling layer 6, the inside of filling layer 6 evenly is equipped with a plurality of semiconductive insulation shielding layer 4, semiconductive insulation shielding layer 4's inside all is equipped with copper conductor 1, the equal fixedly connected with semiconductive conductor shielding layer 2 of outside of copper conductor 1, semiconductive conductor shielding layer 2's the equal fixedly connected with crosslinked polyethylene insulating layer 3 of outside, crosslinked polyethylene insulating layer 3's outside corresponds fixed connection respectively at semiconductive insulation shielding layer 4's inner wall, adopt novel water blocking material to wrap up the technique, improve cable water blocking effect, promote cable transmission reliably.

Further, the metal shielding layer 5 is fixedly connected to the outer portion of the semiconductive insulating shielding layer 4, the outer portions of the metal shielding layer 5 are respectively and fixedly connected to the inner portion of the filling layer 6, an inert gas protection welding technology and a welding spot cooling technology are adopted, waterproof and corrosion resistance of the cable are integrally improved, the inner protective layer 7 is fixedly connected to the outer portion of the filling layer 6, the armor layer 8 is fixedly connected to the outer portion of the inner protective layer 7, the compressive resistance of the cable is integrally improved, the transmission is more stable, the outer protective layer 9 is fixedly connected to the outer portion of the armor layer 8, and the cable is integrally wrapped.

Working principle: the conductor adopts a high-filling-coefficient compressed conductor process, so that the outer diameter and the material of the conductor are effectively reduced, the cable structure protective layer adopts a high-water-blocking-performance buffer water blocking belt, a metal sheath and an anti-corrosion layer to form a comprehensive protective layer, and the reliability of the cable is improved.

The utility model relates to a waterproof and corrosion-resistant medium-voltage power cable, which mainly comprises the following steps:

the conductor adopts a high-filling compressed copper conductor which accords with the national standard GB/T3956-2008;

1. a conductor shield, a crosslinked semiconductive shield layer;

2. an insulating, crosslinked polyethylene insulating layer;

3. an insulating shield, a crosslinked semiconductive shield layer;

4. a metal shield, a wrap-around metal strap shield;

5. cabling, wrapping after twisting the insulated wire cores, and filling with semiconductive buffer water-blocking material (if needed)

6. The isolating sleeve is used for extruding corresponding sheath materials outside the cable layer;

7. armoring, welding a corrugated aluminum armoring layer;

8. and (3) sheathing, namely extruding corresponding sheathing materials outside the cabling layer.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. An anti-corrosion radial water-blocking medium voltage cable, comprising a filling layer (6), characterized in that: the inside of filling layer (6) evenly is equipped with a plurality of semi-conductive insulating shield layer (4), the inside of semi-conductive insulating shield layer (4) all is equipped with copper conductor (1), the outside of copper conductor (1) is all fixedly connected with semi-conductive conductor shield layer (2), the outside of semi-conductive conductor shield layer (2) is all fixedly connected with crosslinked polyethylene insulating layer (3), the outside of crosslinked polyethylene insulating layer (3) corresponds fixed connection respectively at the inner wall of semi-conductive insulating shield layer (4).

2. An anti-corrosion radial water-blocking medium voltage cable according to claim 1, wherein: the outer part of the semiconductive insulating shielding layer (4) is fixedly connected with a metal shielding layer (5), and the outer parts of the metal shielding layer (5) are respectively and correspondingly fixedly connected with the inner part of the filling layer (6).

3. An anti-corrosion radial water-blocking medium voltage cable according to claim 1, wherein: an inner protection layer (7) is fixedly connected to the outer part of the filling layer (6).

4. A corrosion-resistant radial water-blocking medium voltage cable according to claim 3, wherein: and an armor layer (8) is fixedly connected to the outer part of the inner protective layer (7).

5. An anti-corrosion radial water-blocking medium voltage cable according to claim 4, wherein: the outer part of the armor layer (8) is fixedly connected with an outer protective layer (9).