CN111128452A

CN111128452A - Corrosion-resistant fireproof cable

Info

Publication number: CN111128452A
Application number: CN201911265095.9A
Authority: CN
Inventors: 李会超; 李士勇; 耿献涛; 张辉停
Original assignee: Annette Cable Group Co Ltd
Current assignee: Annette Cable Group Co Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-05-08

Abstract

The invention discloses a corrosion-resistant fireproof cable, and relates to the technical field of cables. The heat-insulation steel wire mesh comprises an outer sheath, a steel wire mesh and a heat-insulation layer which are sequentially arranged from outside to inside, wherein a metal wrapping layer, a glass fiber layer and fixed rubber are sequentially arranged on the inner side of the heat-insulation layer; four cable cores are wrapped in the fixed rubber; the cross section of the fixed rubber is of a triangular structure; the fixed rubber triangle is provided with a filling groove along the length direction; the filling groove is filled with a semicircular heat insulation plate. According to the invention, the service performance of the fireproof cable is comprehensively improved through the designed triangular structure, the steel wire mesh, the metal wrapping layer, the glass fiber layer and the semicircular heat insulation plate, and the problem that the existing corrosion-resistant fireproof cable is not strong in comprehensive performance is solved.

Description

Corrosion-resistant fireproof cable

Technical Field

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

Background

Modern society, along with the development of science and technology, the cable is used in all aspects, and need the cable to have certain fire behavior in some special occasions, but some of these cables expose for a long time outside, receive the corruption of air or rainwater easily, and some cables need the installation of large-span to be used, need increase its tensile strength, and some need bury underground and bear great compressive property, and current corrosion-resistant fire prevention cable generally adopts flexible structure, and comprehensive properties is not enough, therefore we have proposed a corrosion-resistant fire prevention cable.

Disclosure of Invention

The invention aims to provide a corrosion-resistant fireproof cable, which comprehensively improves the service performance of the fireproof cable through a designed triangular structure, a steel wire mesh, a metal wrapping layer, a glass fiber layer and a semicircular heat insulation plate, and solves the problem that the conventional fireproof cable is poor in comprehensive performance.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a corrosion-resistant fireproof cable which comprises an outer sheath, a steel wire mesh and a heat insulation layer which are sequentially arranged from outside to inside, wherein a metal wrapping layer, a glass fiber layer and fixing rubber are sequentially arranged on the inner side of the heat insulation layer; four cable cores are wrapped in the fixed rubber; the cross section of the fixed rubber is of a triangular structure; the fixed rubber triangle is provided with a filling groove along the length direction; and the filling groove is filled with a semicircular heat insulation plate.

Furthermore, four cable cores are arranged in a Y shape in the fixed rubber, one cable core is fixed at the center, and the other three cable cores are respectively distributed at three corners of the fixed rubber.

Furthermore, the peripheral side surface of the cable core is coated with an insulating coating, and the insulating coating is processed by a 150 ℃ irradiation crosslinking polyolefin halogen-free insulating material.

Further, a waterproof layer is arranged between the metal wrapping layer and the heat insulation layer; the waterproof layer is made of heat-insulating halogen-free low-smoke high-flame-retardant materials.

The invention has the following beneficial effects:

according to the corrosion-resistant fireproof cable, the designed corrosion-resistant fireproof cable is of a triangular structure, the fixing rubber for fixing the cable cores is arranged in the triangular structure, the four cable cores are arranged in the fixing rubber in a Y shape, the bearing capacity of the core material of the cable is increased, the tensile property of the cable is improved by the steel wire mesh and the metal wrapping layer which are arranged outside, the comprehensive performance of the fireproof cable is improved, and the fireproof and heat-insulating effects on the cable cores are further enhanced by the glass fiber layer and the semicircular heat insulating plate on the inner side of the metal wrapping layer.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a corrosion-resistant fireproof cable according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic cross-sectional view of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-outer sheath, 2-steel wire mesh, 3-heat insulation layer, 4-metal wrapping layer, 5-glass fiber layer, 6-fixed rubber, 7-cable core, 8-filling groove, 9-semicircular heat insulation plate and 10-insulation coating.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the invention relates to a corrosion-resistant fireproof cable, which comprises an outer sheath 1, a steel wire mesh 2 and a heat insulation layer 3 which are sequentially arranged from outside to inside, wherein the outer sheath 1 is made of rubber, a metal wrapping layer 4, a glass fiber layer 5 and fixed rubber 6 are sequentially arranged on the inner side of the heat insulation layer 3, the metal wrapping layer 4 is made of light aluminum, the outer surface of the metal wrapping layer 4 is coated with a corrosion-resistant layer, the corrosion-resistant layer is used for improving corrosion resistance, and the metal wrapping layer 4 is used for increasing corrosion resistance and improving strength of the outer sheath 1; the heat insulation layer 3 is used for improving the fire resistance of the outer layer of the metal wrapping layer 4; four cable cores 7 are wrapped in the fixed rubber 6; the cross section of the fixed rubber 6 is of a triangular structure; filling grooves 8 are formed in the triangular edges of the fixed rubber 6 along the length direction; the filling groove 8 is filled with a semicircular heat insulation plate 9, the glass fiber layer 5 and the semicircular heat insulation plate 9 for fixing three corners of the rubber 6 are used for isolating external heat.

Wherein, four cable cores 7 are arranged in a Y shape in the fixed rubber 6, one cable core 7 is fixed at the central part, and the other three cable cores 7 are respectively distributed at three corners of the fixed rubber 6.

Wherein, the peripheral side surface of the cable core 7 is coated with an insulating coating 10, and the insulating coating 10 is processed by a 150 ℃ irradiation crosslinking polyolefin halogen-free insulating material.

Wherein a waterproof layer is arranged between the metal wrapping layer 4 and the heat insulating layer 3; the waterproof layer is made of heat-insulating halogen-free low-smoke high-flame-retardant materials and is used for improving the waterproof performance.

One specific application of this embodiment is: the corrosion-resistant fireproof cable who designs adopts triangular structure, and inside fixed rubber 6 that is used for fixed cable core 7 is the triangular structure, and wherein four cable cores 7 are Y shape in fixed rubber 6 and arrange, and the bearing capacity of cable increases, and wire net 2 and the metal wrapping layer 4 that externally set up have improved the tensile strength of cable, make fireproof cable's comprehensive properties obtain promoting.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a corrosion-resistant fireproof cable, includes by oversheath (1), wire net (2), insulating layer (3) that outer to interior set gradually, its characterized in that:

the inner side of the heat insulation layer (3) is sequentially provided with a metal wrapping layer (4), a glass fiber layer (5) and fixed rubber (6); four cable cores (7) are wrapped in the fixed rubber (6); the cross section of the fixed rubber (6) is of a triangular structure; filling grooves (8) are formed in the triangular edges of the fixed rubber (6) along the length direction; and the filling groove (8) is filled with a semicircular heat insulation plate (9).

2. A corrosion-resistant fireproof cable according to claim 1, wherein the four cable cores (7) are arranged in a Y-shape.

3. A corrosion-resistant fireproof cable according to claim 1, wherein the cable core (7) is coated with an insulating coating (10) on its peripheral side.

4. A corrosion-resistant fireproof cable according to claim 1, wherein a waterproof layer is arranged between the metal wrapping layer (4) and the heat insulating layer (3); the waterproof layer is made of heat-insulating halogen-free low-smoke high-flame-retardant materials.