CN210865658U

CN210865658U - Fireproof cable

Info

Publication number: CN210865658U
Application number: CN201922425447.4U
Authority: CN
Inventors: 孙华荣
Original assignee: Yingtan Jinhai Wire And Cable Co ltd
Current assignee: Yingtan Jinhai Wire And Cable Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-06-26
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a fireproof cable, which comprises a wire, the wire is many sinle silk hanks and forms, the outer one deck parcel insulating layer of wire, the insulating layer is filled by fire prevention material between two liang, the insulating layer is equipped with the layer of putting out a fire outward, the layer of putting out a fire is equipped with the enhancement layer outward, be equipped with first fire-retardant layer outward outside the enhancement layer, be equipped with the flame retardant coating outward, be equipped with the fire-retardant layer of second outward outside the fire-retardant layer, be equipped with the protective layer outward outside the fire-retardant layer of second. The utility model discloses a be equipped with multilayer fire resistive construction, realized the promotion of fire behavior.

Description

Fireproof cable

Technical Field

The utility model relates to a cable field especially relates to a fireproof cable.

Background

It is statistically estimated that the portion due to electrical failure accounts for about 60% in the event of a fire. Along with the increasing understanding of the danger of fire caused by the problems of the electric wires and cables, the requirements for the performances of fire prevention, flame retardance and the like of the electric wires and cables are gradually improved. In case of fire, fire-fighting equipment such as fire elevators and fire pumps need to keep normal operation for a certain time, so that wires and cables for transmitting power of the equipment need to have high fireproof and heat-resistant performance. While a general fire-resistant cable only has single-layer fire protection, such as wrapping mica tapes on a conductor or filling the conductor with flame retardant, but does not have multi-layer fire protection.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an among the above-mentioned background art of solution, the general fire resisting cable who mentions only has individual layer fire protection, and does not possess multilayer fire protection and the fire resisting cable who provides.

The utility model provides a technical scheme is: the utility model provides a fireproof cable, includes the wire, the wire forms for many sinle silk transposition, the outer one deck parcel insulating layer of wire, the insulating layer is filled by fire prevention material between two liang, the insulating layer is equipped with the layer of putting out a fire outward, the layer of putting out a fire is equipped with the enhancement layer outward, the enhancement layer is equipped with first fire-retardant layer outward, first fire-retardant layer is equipped with the flame retardant coating outward, the flame retardant coating of second is equipped with the fire-retardant layer outward, the flame retardant coating of second is equipped with the protective layer outward.

Furthermore, the insulating layer is made of environment-friendly high polymer and covers the lead.

Furthermore, the fireproof material is a perlite material, and the perlite is non-toxic, tasteless, fireproof and heat-insulating; the combustion performance reaches A-level non-combustibility, the material does not melt and deform at the high temperature of 1100 ℃, and the material is a novel filling material with low cost, excellent fireproof performance and excellent environmental protection performance.

Furthermore, the fire extinguishing layer consists of a base layer, a graphene layer and an expandable graphite layer, the graphene layer and the expandable graphite layer are uniformly distributed in the base layer, the weight of the graphene layer is 75-80% of that of the base layer, the weight of the expandable graphite layer is 20-25% of that of the base layer, and the fire extinguishing layer has excellent heat conduction performance and thermal expansion performance.

Furthermore, a metal wire is arranged in the reinforcing layer.

Furthermore, the first flame-retardant layer and the second flame-retardant layer are made of glass fibers and respectively wrapped on the reinforcing layer and the fireproof layer, and the glass fibers have good heat resistance.

Furthermore, the fireproof layer is made of fireproof materials containing magnetic powder, magnesium oxide and ceramics.

Further, the protective layer is a cross-linked polyolefin outer sheath.

The utility model discloses the beneficial effect who produces is: the fireproof material arranged between every two insulating layers is perlite material, and the perlite is nontoxic, tasteless, fireproof and heat-insulating; the combustion performance reaches A-level non-combustibility, the material does not melt and deform at the high temperature of 1100 ℃, and the material is a novel filling material with low cost, excellent fireproof performance and excellent environmental protection performance; the fire extinguishing layer consists of a base layer, a graphene layer and an expandable graphite layer, and has excellent heat conduction performance and thermal expansion performance; the metal wire improves the overall strength of the cable; the first flame-retardant layer and the second flame-retardant layer are made of glass fibers, so that the heat resistance of the cable is improved; the fireproof layer is made of fireproof material containing magnetic powder, magnesium oxide and ceramic, and fireproof performance is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the structure of the fire extinguishing layer of the present invention.

In the figure: 1. the fireproof insulation board comprises a conducting wire, 2 insulating layers, 3 fireproof materials, 4 fire extinguishing layers, 41 base layers, 42 graphene layers, 43 expandable graphite layers, 5 reinforcing layers, 6 first flame retardant layers, 7 fireproof layers, 8 second flame retardant layers and 9 protective layers.

Detailed Description

The invention will be described in greater detail with reference to the accompanying drawings, and it should be noted that the following detailed description is given for illustrative purposes only and is not intended to limit the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present invention based on the above disclosure.

As shown in fig. 1-2, a fireproof cable comprises a wire 1, wherein the wire 1 is formed by twisting a plurality of wire cores, an insulating layer 2 is wrapped outside the wire 1, the insulating layer 2 is an insulating layer 2 made of an environment-friendly high polymer, the insulating layer 2 is wrapped on the wire, the insulating layer 2 is filled with a fireproof material 3 between every two adjacent insulating layers, and the fireproof material 3 is a perlite material which is non-toxic, odorless, fireproof and heat-insulating; the flame-retardant cable is a novel filling material which is non-combustible at A level, does not melt and deform at 1100 ℃ and has low cost, excellent fire resistance and environmental protection performance, the fire extinguishing layer 4 is arranged outside the insulating layer 2, the fire extinguishing layer 4 consists of a base layer 41, a graphene layer 42 and an expandable graphite layer 43, the graphene layer 42 and the expandable graphite layer 43 are uniformly distributed in the base layer 41, the weight of the graphene layer 42 is 75-80% of that of the base layer 41, the weight of the expandable graphite layer 43 is 20-25% of that of the base layer 41, the fire extinguishing layer 4 is excellent in heat conduction performance and thermal expansion performance, the reinforcing layer 5 is arranged outside the fire extinguishing layer 4, metal wires are arranged in the reinforcing layer 5, the strength of the cable is improved by the metal wires, the first flame-retardant layer 6 is arranged outside the reinforcing layer 5, the first flame-retardant layer 6 is glass fibers and wraps the reinforcing layer 5, glass fiber has improved the heat resistance of cable, first fire-retardant layer 6 is equipped with flame retardant coating 7 outward, flame retardant coating 7 adopts the fire-retardant material who contains magnetic, magnesium oxide, pottery, has improved fire behavior, flame retardant coating 7 is equipped with the fire-retardant layer 8 of second outward, and the fire-retardant layer 8 of second is glass fiber, wraps up on the flame retardant coating 7, the fire-retardant layer 8 of second is equipped with protective layer 9 outward, protective layer 9 is the cross-linked polyolefin oversheath.

The utility model discloses a theory of operation is: the fireproof performance is improved by arranging the multilayer fireproof structure, and the fireproof material 3 arranged between every two insulating layers 2 is a perlite material which is non-toxic, tasteless, fireproof and heat-insulating; the combustion performance reaches A-level non-combustibility, the material does not melt and deform at the high temperature of 1100 ℃, and the material is a novel filling material with low cost, excellent fireproof performance and excellent environmental protection performance; the arranged fire extinguishing layer 4 consists of a base layer 41, a graphene layer 42 and an expandable graphite layer 43, and as graphene is a carbon material with excellent heat conducting property and has good compatibility with the expandable graphite layer 43, the graphene layer 42 is used for providing a heat transfer medium, so that the graphene layer 42 and the expandable graphite layer 43 form a good heat conducting network, which is beneficial to forming a self-supporting structure by the heated base layer 41, the graphene layer 22 and the expanded expandable graphite layer 43 in the fire extinguishing process, and the self-supporting is mainly realized by Van der Waals force existing among the graphene layer 22, the expanded expandable graphite layer 43 and the base layer 41; the reinforcing layer 5 is made of metal wires, so that the overall strength of the cable is improved, and the first flame-retardant layer 6 and the second flame-retardant layer 8 are made of glass fibers, so that the heat resistance of the cable is improved; the fireproof layer 7 is made of fireproof materials containing magnetic powder, magnesium oxide and ceramics, and fireproof performance is improved.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A fire-resistant cable comprising a conductor (1), characterized in that: wire (1) is formed for many sinle silks transposition, wire (1) outer one deck parcel insulating layer (2), insulating layer (2) are filled by fire prevention material (3) between two liang, insulating layer (2) are equipped with flame retardant coating (4) outward, flame retardant coating (4) are equipped with enhancement layer (5) outward, enhancement layer (5) are equipped with first fire-retardant layer (6) outward, first fire-retardant layer (6) are equipped with flame retardant coating (7) outward, flame retardant coating (7) are equipped with the fire-retardant layer of second (8) outward, the fire-retardant layer of second (8) are equipped with protective layer (9) outward.

2. A fire-resistant cable according to claim 1, wherein: the insulating layer (2) is made of environment-friendly high polymer, and the insulating layer (2) is coated on the lead.

3. A fire-resistant cable according to claim 1, wherein: the fireproof material (3) is a perlite material.

4. A fire-resistant cable according to claim 1, wherein: the fire extinguishing layer (4) is composed of a base layer (41), a graphene layer (42) and an expandable graphite layer (43), the graphene layer (42) and the expandable graphite layer (43) are uniformly distributed in the base layer, the weight of the graphene layer (42) is 75-80% of that of the base layer (41), and the weight of the expandable graphite layer (43) is 20-25% of that of the base layer (41).

5. A fire-resistant cable according to claim 1, wherein: and metal wires are arranged in the reinforcing layer (5).

6. A fire-resistant cable according to claim 1, wherein: the first flame-retardant layer (6) and the second flame-retardant layer (8) are made of glass fibers and are respectively wrapped on the reinforcing layer (5) and the fireproof layer (7).

7. A fire-resistant cable according to claim 1, wherein: the protective layer (9) is a cross-linked polyolefin outer sheath.