CN210865705U

CN210865705U - High-performance fireproof cable

Info

Publication number: CN210865705U
Application number: CN201922248504.6U
Authority: CN
Inventors: 谭俊山; 平艳斌
Original assignee: Guangdong Zhiguang Energy Technology Co ltd
Current assignee: Guangdong Zhiguang Energy Technology Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-06-26
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses a high performance fireproof cable, characterized by: including outer protective layer, steel armour layer, first fire-retardant insulating layer, the initiative flame retardant coating layer, the fire-retardant insulating layer of second and sinle silk that outside-in set gradually, be provided with the stopping in the inside of the fire-retardant insulating layer of second and be located between the sinle silk, be provided with the holding tank that a plurality of layers of latticed distribute on the surface on the initiative flame retardant coating layer, the holding tank intussuseption is filled with the powder of putting out a fire. When the cable encounters a fire, the first flame-retardant heat-insulating layer has flame-retardant property and can isolate heat, so that not only can the spread of fire be prevented, but also the heat can be prevented from being transferred to the inner layer of the cable; if the first flame-retardant heat-insulating layer is burnt, fire extinguishing powder in the active fire extinguishing layer is scattered out to extinguish fire seedlings; if the active fire extinguishing layer is burnt out, the second flame-retardant heat-insulating layer also prevents the spread of fire and the heat from being transferred to the inner layer of the cable. Through triple protection, the cable has good fireproof performance and effectively protects the wire core.

Description

High-performance fireproof cable

Technical Field

The utility model relates to a power cable, more specifically say, it relates to a high performance fireproof cable.

Background

With the development of economy, places needing cables are diversified, more strict and diversified requirements are provided for performance indexes of the cables, for example, indexes such as insulativity, tensile strength, use temperature and flame retardant property are strict, the performance of the cables is continuously improved, the method is an urgent need for economic and social development, and most traditional sheath materials have the problem of poor flame retardant and heat insulation properties and cannot effectively protect cable cores.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a high performance fireproof cable, it has better fire behavior.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a high performance fireproof cable, characterized by: including outer protective layer, steel armour layer, first fire-retardant insulating layer, the initiative layer of putting out a fire, the fire-retardant insulating layer of second and sinle silk that outside-in set gradually the inside of the fire-retardant insulating layer of second just is located and is provided with the stopping between the sinle silk, be provided with the holding tank that a plurality of layers of latticed distributions on the surface on the initiative layer of putting out a fire, the holding tank intussuseption is filled with the powder of putting out a fire.

As a preferable scheme: the first flame-retardant heat-insulating layer and the second flame-retardant heat-insulating layer are rock wool band winding layers.

As a preferable scheme: the filler is glass fiber cloth.

As a preferable scheme: the thickness of the first flame-retardant heat-insulating layer and the second flame-retardant heat-insulating layer is 0.5-1.5 mm.

As a preferable scheme: the active fire extinguishing layer is a chlorosulfonated polyethylene rubber layer.

As a preferable scheme: the glass fiber cloth is adhered into a whole by adhesive.

Compared with the prior art, the utility model has the advantages that: when the cable encounters a fire disaster, the outer protective layer is burnt firstly, the steel armor layer is exposed outside after the outer protective layer is burnt, the first flame-retardant heat insulation layer is in a high-temperature environment or is directly burnt by the fire, and the first flame-retardant heat insulation layer has flame-retardant property and can isolate heat, so that the first flame-retardant heat insulation layer cannot burn and catch fire, and not only can the spread of the fire be prevented, but also the heat can be prevented from being transferred to the inner layer of the cable; if the external fire is too large, the first flame-retardant heat-insulating layer is burnt, the active fire-extinguishing layer is exposed, the fire-extinguishing powder in the containing tank is scattered, the fire-extinguishing powder has the function of extinguishing fire, can also play a role in preventing the fire from spreading, and even can extinguish local fire; even if the active fire extinguishing layer is burnt, the second flame-retardant heat insulation layer can be exposed to prevent the fire from spreading and prevent heat from being transferred to the inner layer of the cable. Through triple protection of first fire-retardant insulating layer, initiative flame-out layer and the fire-retardant insulating layer of second for this cable has fine fire behavior, can effectively protect the sinle silk.

Drawings

Fig. 1 is a schematic layer structure diagram of the high-performance fireproof cable in this embodiment.

1, outer protective layer; 2. a steel armor layer; 3. a first flame-retardant heat-insulating layer; 4. an active fire extinguishing layer; 5. a second flame-retardant heat-insulating layer; 6. a filler; 7. a wire core; 8. accommodating grooves; 9. fire extinguishing powder.

Detailed Description

Referring to fig. 1, a high-performance fireproof cable comprises an outer protective layer 1, a steel armor layer 2, a first flame-retardant thermal insulation layer 3, an active fire extinguishing layer 4, a second flame-retardant thermal insulation layer 5 and wire cores 7 which are sequentially arranged from outside to inside, wherein a filler 6 is arranged inside the second flame-retardant thermal insulation layer 5 and between the wire cores 7. A plurality of accommodating grooves 8 distributed in a grid shape are arranged on the outer surface of the active fire extinguishing layer 4, and fire extinguishing powder 9 is filled in the accommodating grooves 8. The active fire extinguishing layer 4 in the embodiment is made of chlorosulfonated polyethylene rubber, and the chlorosulfonated polyethylene rubber has good heat resistance and fire resistance, and can be used for enhancing the fire resistance and heat resistance of the cable.

When the cable encounters a fire disaster, the outer protection layer 1 is burnt firstly, the steel armor layer 2 is exposed outside after the outer protection layer 1 is burnt, the first flame-retardant heat insulation layer 3 is in a high-temperature environment or is directly burnt by fire, and the first flame-retardant heat insulation layer 3 has flame-retardant property and can insulate heat, so that the first flame-retardant heat insulation layer 3 cannot be burnt to cause a fire, and not only can the spread of the fire be prevented, but also the heat can be prevented from being transferred to the inner layer of the cable; if the external fire is too large, the first flame-retardant heat-insulating layer 3 is burnt, the active fire extinguishing layer 4 is exposed, the fire extinguishing powder 9 in the accommodating groove 8 is spilled out, the fire extinguishing powder 9 has the function of extinguishing fire, and the fire extinguishing powder can also play a role in preventing the fire from spreading and even can extinguish local fire; even if the active fire extinguishing layer 4 is burnt out, the second fire retardant and heat insulation layer 5 is exposed to prevent the fire from spreading and the heat from being transferred to the inner layer of the cable. Through the triple protection of first fire-retardant insulating layer 3, initiative fire extinguishing layer 4 and the fire-retardant insulating layer 5 of second for this cable has fine fire behavior, can effectively protect sinle silk 7.

In this embodiment, the first flame-retardant heat-insulating layer 3 and the second flame-retardant heat-insulating layer 5 are rock wool tape wrapping layers. The rock wool material has good fire-resistant and heat-insulating properties and is a commonly used cable fireproof material. The filler 6 in this embodiment is glass fiber cloth, which has good insulation, strong heat resistance, and high mechanical strength, and is an ideal electrical insulating material and thermal insulating material. The glass fiber cloth is filled between the cable cores, so that heat can be prevented from being transferred to the cable cores, the protection of the cable is enhanced, and the tensile resistance of the cable can be enhanced.

The thicknesses of the first flame-retardant heat-insulating layer 3 and the second flame-retardant heat-insulating layer 5 in this embodiment are both 1mm, and the thicknesses in other embodiments may also be 0.5mm, 1.5mm, and the like.

The glass fiber cloth in the embodiment is adhered by the adhesive to form a whole, so that the tensile resistance of the cable can be further enhanced.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a high performance fireproof cable, characterized by: including outer protective layer, steel armour layer, first fire-retardant insulating layer, the initiative layer of putting out a fire, the fire-retardant insulating layer of second and sinle silk that outside-in set gradually the inside of the fire-retardant insulating layer of second just is located and is provided with the stopping between the sinle silk, be provided with the holding tank that a plurality of layers of latticed distributions on the surface on the initiative layer of putting out a fire, the holding tank intussuseption is filled with the powder of putting out a fire.

2. The high performance fire-resistant cable of claim 1, wherein: the first flame-retardant heat-insulating layer and the second flame-retardant heat-insulating layer are rock wool band winding layers.

3. The high performance fire-resistant cable of claim 1, wherein: the filler is glass fiber cloth.

4. The high performance fire-resistant cable of claim 2, wherein: the thickness of the first flame-retardant heat-insulating layer and the second flame-retardant heat-insulating layer is 0.5-1.5 mm.

5. The high performance fire-resistant cable of claim 1, wherein: the active fire extinguishing layer is a chlorosulfonated polyethylene rubber layer.

6. The high performance fire-resistant cable of claim 3, wherein: the glass fiber cloth is adhered into a whole by adhesive.