CN215933250U - Novel high environmental protection and energy saving fireproof cable - Google Patents

Abstract

The utility model discloses a novel high-environment-friendly energy-saving fireproof cable, which belongs to the technical field of fireproof cables and comprises an outer sheath, conductors and an inner sheath, wherein the outer sheath is fixedly provided with a plurality of inner sheaths, and the inner sheath is fixedly provided with the conductors; the outer sheath is sequentially provided with a protective layer, a metal woven shielding net, a heat conducting layer and a first insulating layer from outside to inside; the inner sheath is sequentially provided with a waterproof layer, a flame-retardant layer and a second insulating layer from outside to inside; a fireproof coating layer is arranged between the protective layer and the metal braided shielding net; a plurality of heat conduction supports are arranged between the metal woven shielding net and the heat conduction layer, and a plurality of flame retardant cavities are formed between the heat conduction supports. The fireproof coating layer improves the fire resistance of the cable, slows down the spread and propagation speed of flame, or can prevent burning within a certain time, and when a fire disaster happens, the cable can be normally used for a longer time to provide required electric power for rescue work, so that people can evacuate within enough time.

Description

Novel high environmental protection and energy saving fireproof cable

Technical Field

The utility model relates to the technical field of novel fireproof cables, in particular to a novel high-environment-friendly energy-saving fireproof cable.

Background

The cable usually comprises several or unit wires, according to specific user demand, can divide into many types, along with electric power resource uses in daily production life more and more, the application of cable is also more and more, however, because the cable is generally laid underground or is exposed in the air, when the cable design, hidden danger such as conflagration that complicated environment brought need be considered, current cable design, some have fire prevention fire retardant efficiency poor, can not effectively delay the problem of intensity of a fire, some have the problem that resistance to compression and heat-proof quality are poor, can not be in the condition that the conflagration is proruption, the effectual normal transmission time who prolongs the cable, reduce the loss.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a novel high-environment-friendly energy-saving fireproof cable.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a novel high-environment-friendly energy-saving fireproof cable which comprises an outer sheath, conductors and an inner sheath, wherein a plurality of inner sheaths are fixedly arranged in the outer sheath, and the conductors are fixedly arranged in the inner sheaths; the outer sheath is sequentially provided with a protective layer, a metal woven shielding net, a heat conducting layer and a first insulating layer from outside to inside; the inner sheath is sequentially provided with a waterproof layer, a flame-retardant layer and a second insulating layer from outside to inside; a fireproof coating layer is arranged between the protective layer and the metal braided shielding net; a plurality of heat conduction supports are arranged between the metal woven shielding net and the heat conduction layer, and a plurality of flame retardant cavities are formed between the heat conduction supports.

The utility model has the preferable technical scheme that a plurality of heat conducting wires are arranged in the heat conducting bracket, and two ends of each heat conducting wire are abutted against the metal woven shielding net and the heat conducting layer.

The utility model preferably adopts the technical scheme that the heat-conducting bracket is made of high-temperature-resistant silica gel material.

The utility model preferably adopts the technical scheme that the protective layer is made of ethylene propylene diene monomer rubber.

The utility model preferably adopts the technical scheme that a filling layer is arranged in the flame-retardant cavity and is made of glass fiber.

The utility model has the preferable technical scheme that a flame-retardant filling layer is arranged between the outer sheath and the inner sheath, and the flame-retardant filling layer is made of halogen-free environment-friendly polyolefin.

The utility model has the beneficial effects that:

the utility model provides a novel high-environment-friendly energy-saving fireproof cable which comprises an outer sheath, conductors and an inner sheath, wherein a plurality of inner sheaths are fixedly arranged in the outer sheath, and the conductors are fixedly arranged in the inner sheaths; the outer sheath is sequentially provided with a protective layer, a metal woven shielding net, a heat conducting layer and a first insulating layer from outside to inside; the inner sheath is sequentially provided with a waterproof layer, a flame-retardant layer and a second insulating layer from outside to inside; a fireproof coating layer is arranged between the protective layer and the metal braided shielding net; a plurality of heat conduction supports are arranged between the metal woven shielding net and the heat conduction layer, and a plurality of flame retardant cavities are formed between the heat conduction supports. Protect the cable effectively through setting up oversheath and inner sheath, make the fire prevention fire behaviour of cable stronger, the pressure resistance of cable can be improved to the heat conduction support, and can weave the shielding net with the heat transfer of heat-conducting layer to the metal, increase heat radiating area, further improve cable fire behavior, fireproof coating layer improves cable fire-resistant ability, slow down flame spread propagation speed, or can stop the burning within a certain time, when the conflagration breaing out, the cable also can normal use longer time, provide required electric power for rescue work, make personnel have the sufficient time to withdraw.

Drawings

FIG. 1 is a schematic view of an overall structure of a novel high-environmental-protection energy-saving fireproof cable according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an inner sheath of a novel high-environmental-protection energy-saving fireproof cable according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a heat-conducting bracket of a novel high-environmental-protection energy-saving fireproof cable according to an embodiment of the present invention;

in the figure:

1. an outer sheath; 2. an inner sheath; 3. a conductor; 5. a protective layer; 6. a metal braided shielding net; 7. a first insulating layer; 8. a heat conductive layer; 9. a thermally conductive support; 10. a fire retardant coating layer; 11. a waterproof layer; 12. a flame retardant layer; 13. a second insulating layer; 14. a flame retardant cavity; 15. heat conducting wires; 16. and a flame-retardant filling layer.

Detailed Description

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

As shown in the figures, the embodiment provides a novel high-environment-friendly energy-saving fireproof cable, which includes an outer sheath 1, conductors 3 and an inner sheath 2, wherein a plurality of inner sheaths 2 are fixedly arranged in the outer sheath 1, and the conductors 3 are fixedly arranged in the inner sheaths 2; the outer sheath 1 is sequentially provided with a protective layer 5, a metal braided shielding net 6, a heat conducting layer 8 and a first insulating layer 7 from outside to inside; the inner sheath 2 is sequentially provided with a waterproof layer 11, a flame-retardant layer 12 and a second insulating layer 13 from outside to inside; a fireproof coating layer 10 is arranged between the protective layer 5 and the metal braided shielding net 6; a plurality of heat conduction brackets 9 are arranged between the metal woven shielding net 6 and the heat conduction layer 8, and a plurality of flame retardant cavities 14 are formed between the heat conduction brackets 9. The cable is effectively protected by arranging the outer sheath 1 and the inner sheath 2, the fireproof and flame-retardant performance of the cable is stronger, the pressure resistance of the cable can be improved by the heat conduction support 9, the heat of the heat conduction layer 8 can be transferred to the metal woven shielding net 6, the heat dissipation area is increased, the fireproof performance of the cable is further improved, the fireproof coating layer 10 expands and foams when heated, a carbon foam heat insulation layer closed cable is formed, the transfer of the heat and the cable is delayed, the fireproof capacity of the cable is improved, the flame spread propagation speed is reduced, or the combustion can be prevented within a certain time, when a fire disaster occurs, the cable can be normally used for a longer time, needed electric power is provided for rescue work, and people can withdraw in enough time.

A plurality of heat conducting wires 15 are arranged in the heat conducting support 9, and two ends of each heat conducting wire 15 are abutted against the metal woven shielding net 6 and the heat conducting layer 8, so that the heat conducting effect is improved.

The heat conducting bracket 9 is made of high temperature resistant silica gel material. The fire resistance of the thermally conductive holder 9 and thus of the cable is increased.

The protective layer 5 is made of ethylene propylene diene monomer. The fire-resistant and weather-resistant performance of the cable is improved, the cable is prevented from aging, and the service life is prolonged.

A filling layer is arranged in the flame-retardant cavity 14 and is made of glass fiber. Further improving the flame retardant property of the cable.

And a flame-retardant filling layer 16 is arranged between the outer sheath 1 and the inner sheath 2, and the flame-retardant filling layer 16 is made of halogen-free environment-friendly polyolefin. After the outer sheath 1 is ignited, the fire is further prevented from spreading to the inner sheath 2, and the normal use time of the cable in the case of fire is prolonged.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims (6)

1. The utility model provides a novel energy-conserving fireproof cable of high environmental protection, includes oversheath (1), conductor (3), inner sheath (2), its characterized in that:

a plurality of inner sheaths (2) are fixedly arranged in the outer sheath (1), and the conductor (3) is fixedly arranged in the inner sheath (2);

the outer sheath (1) is sequentially provided with a protective layer (5), a metal woven shielding net (6), a heat conducting layer (8) and a first insulating layer (7) from outside to inside;

the inner sheath (2) is sequentially provided with a waterproof layer (11), a flame-retardant layer (12) and a second insulating layer (13) from outside to inside;

a fireproof coating layer (10) is arranged between the protective layer (5) and the metal woven shielding net (6);

a plurality of heat conduction supports (9) are arranged between the metal woven shielding net (6) and the heat conduction layer (8), and a plurality of flame retardant cavities (14) are formed between the heat conduction supports (9).

2. The novel high environmental protection and energy saving fireproof cable of claim 1, wherein:

the heat conduction support (9) is internally provided with a plurality of heat conduction wires (15), and two ends of each heat conduction wire (15) are abutted against the metal woven shielding net (6) and the heat conduction layer (8).

3. The novel high environmental protection and energy saving fireproof cable of claim 1, wherein:

the heat conducting bracket (9) is made of high-temperature-resistant silica gel material.

4. The novel high environmental protection and energy saving fireproof cable of claim 1, wherein:

the protective layer (5) is made of ethylene propylene diene monomer rubber.

5. The novel high environmental protection and energy saving fireproof cable of claim 1, wherein:

and a filling layer is arranged in the flame-retardant cavity (14), and is made of glass fiber.

6. The novel high environmental protection and energy saving fireproof cable of claim 1, wherein:

and a flame-retardant filling layer (16) is arranged between the outer sheath (1) and the inner sheath (2), and the flame-retardant filling layer (16) is made of halogen-free environment-friendly polyolefin.

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