CN210403303U

CN210403303U - Fireproof cable with multiple fireproof layers

Info

Publication number: CN210403303U
Application number: CN201921308037.5U
Authority: CN
Inventors: 陈沛荣; 胡建序; 杨永新; 李庆; 卢皓; 杨德胜; 胡建波
Original assignee: Hubei Hongqi Cable Co ltd
Current assignee: Hubei Hongqi Cable Co ltd
Priority date: 2019-06-28
Filing date: 2019-08-13
Publication date: 2020-04-24
Anticipated expiration: 2029-08-13

Abstract

The utility model discloses a fireproof cable with many flame retardant coatings, including the cable body, the cable body includes the sheath, and the internal surface fixed connection of sheath has the insulating layer, and the internal surface fixed connection of insulating layer has the metal fire prevention area, and the inner wall fixedly connected with heat dissipation layer of metal fire prevention area, the internal surface fixed connection on heat dissipation layer have high temperature resistant layer, and the first flame retardant coating of internal surface fixed connection on high temperature resistant layer includes the layer of putting out a fire. This fireproof cable with many flame retardant coatings, through the sheath, the insulating layer, the metal fire prevention area, the heat dissipation layer, high temperature resistant layer, first flame retardant coating, the layer of putting out a fire, the chamber of putting out a fire, the cooperation of gel and water blocking layer of putting out a fire is used, the sheath adopts low smoke and zero halogen flame retardant polyolefin to make, help improving the fire prevention fire behavior of cable body, through the cooperation of insulating layer and metal fire prevention area, help preventing heat and intensity of a fire further extend, further improve the fire prevention fire behavior that improves the cable body.

Description

Fireproof cable with multiple fireproof layers

Technical Field

The utility model relates to a cable specifically is a fireproof cable with many flame retardant coatings.

Background

Cables are typically ropes of several or groups of at least two twisted conductors, each group insulated from each other and often twisted around a center, with highly insulated coatings around the entire outside, the conductors typically being of copper and aluminum. The application sites for the cables are relatively complex and these complex sites present challenges to the safe operation of the cables. The fire is one of the most important factors influencing the safe operation of the cable, and how to ensure the normal operation of the cable under the high-temperature condition is a technical problem to be solved by cable production enterprises.

However, the traditional fireproof cable in the market is not optimized enough in structure and reasonable in design.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fireproof cable with many flame retardant coatings to solve the problem that proposes among the above-mentioned background art.

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

a fireproof cable with multiple fireproof layers comprises a cable body, wherein the cable body comprises a sheath, the inner surface of the sheath is fixedly connected with a heat insulation layer, the inner surface of the heat insulation layer is fixedly connected with a metal fireproof belt, the inner wall of the metal fireproof belt is fixedly connected with a heat dissipation layer, the inner surface of the heat dissipation layer is fixedly connected with a high temperature resistant layer, the inner surface of the high temperature resistant layer is fixedly connected with a first fireproof layer which comprises a fire extinguishing layer, a fire extinguishing cavity is arranged inside the fire extinguishing layer, fire extinguishing gel is arranged inside the fire extinguishing cavity, the inner surface of the fire extinguishing layer is fixedly connected with a water resisting layer, the inner surface of the first fire resisting layer is fixedly connected with an oxygen isolating layer, the internal surface fixedly connected with insulating layer on oxygen-proof layer, the internal surface fixedly connected with second flame retardant coating of insulating layer, the inside of second flame retardant coating is provided with a plurality of sinle silks.

As a further aspect of the present invention: the second fireproof layer comprises a fireproof layer, and the inner surface of the fireproof layer is fixedly connected with a flame-retardant layer.

As a further aspect of the present invention: the outer surface of the sheath is fixedly connected with a corrosion-resistant layer, and the corrosion-resistant layer is a graphite layer.

As a further aspect of the present invention: the flame retardant coating is made of glass fiber, and the flame retardant coating is made of flame retardant polyethylene.

As a further aspect of the present invention: the sheath is made of low-smoke halogen-free flame-retardant polyolefin, the heat insulation layer is a mineral fireproof heat insulation layer, and the metal fireproof belt is made of a stainless steel belt.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model is characterized in that the sheath, the thermal insulation layer, the metal fire-resistant belt, the heat dissipation layer, the high temperature resistant layer, the first fireproof layer, the fire extinguishing cavity, the fire extinguishing gel and the water-resistant layer are used in a matching way, the sheath is made of low-smoke halogen-free flame-retardant polyolefin, which is helpful to improve the fire-retardant performance of the cable body, the heat and the fire behavior are prevented from further spreading through the matching of the thermal insulation layer and the metal fire-resistant belt, the fire-retardant performance of the cable body is further improved, then the heat can be absorbed and dissipated through the matching of the heat dissipation layer and the high temperature resistant layer, the temperature of the thermal insulation layer and the metal fire-resistant belt can be reduced, the fire extinguishing gel has good cooling performance, the obvious fire-preventing and extinguishing effect can be achieved, the fire-retardant performance of the cable body is further improved, the arrangement of the corrosion-resistant layer has, thereby can keep the integrality of sheath, make it can keep its good fire prevention effect, through the second flame retardant coating, the flame retardant coating is used with the cooperation of fire-retardant layer, set up the second flame retardant coating at the surface of sinle silk, further play the fire prevention fire-retardant effect, the fire prevention fire behaviour of cable body is high, through the multiple functional layer that sets up, it all has good fire prevention, fire behaviour, thereby can make this cable body fire prevention fire-retardant grade have showing the improvement, the fire prevention fire-retardant effect is good, its structure is more optimized, it is more reasonable to design.

Drawings

Fig. 1 is a schematic structural diagram of a fireproof cable with multiple fireproof layers.

Fig. 2 is a schematic structural diagram of a second fire protection in a fire-resistant cable with multiple fire-resistant layers.

Fig. 3 is a schematic structural diagram of a first fire-resistant layer in a fire-resistant cable with multiple fire-resistant layers.

In the figure: the cable comprises a cable body 1, an anti-corrosion layer 2, a sheath 3, a heat insulation layer 4, a metal fireproof belt 5, a heat dissipation layer 6, a high-temperature resistant layer 7, a first fireproof layer 8, an oxygen isolation layer 9, an insulation layer 10, a second fireproof layer 11, a wire core 12, a fireproof layer 13, a flame retardant layer 14, a fire extinguishing layer 15, a fire extinguishing cavity 16, fire extinguishing gel 17 and a water blocking layer 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, in an embodiment of the present invention, a fireproof cable with multiple fireproof layers comprises a cable body 1, the cable body 1 includes a sheath 3, an insulating layer 4 is fixedly connected to an inner surface of the sheath 3, a metal fireproof strip 5 is fixedly connected to an inner surface of the insulating layer 4, a heat dissipation layer 6 is fixedly connected to an inner wall of the metal fireproof strip 5, a high temperature resistant layer 7 is fixedly connected to an inner surface of the heat dissipation layer 6, a first fireproof layer 8 is fixedly connected to an inner surface of the high temperature resistant layer 7, the first fireproof layer 8 includes a fire extinguishing layer 15, a fire extinguishing chamber 16 is arranged inside the fire extinguishing layer 15, a fire extinguishing gel 17 is arranged inside the fire extinguishing chamber 16, a water blocking layer 18 is fixedly connected to an inner surface of the fire extinguishing layer 15, an oxygen insulating layer 9 is fixedly connected to an inner surface of the first fireproof layer 8, an insulating layer 10 is fixedly connected to an inner surface of the oxygen insulating layer, the inside of second flame retardant coating 11 is provided with a plurality of sinle silks 12, second flame retardant coating 11 includes flame retardant coating 13, flame retardant coating 14 of the internal surface fixedly connected with of flame retardant coating 13, the outer fixed surface of sheath 3 is connected with corrosion-resistant layer 2, corrosion-resistant layer 2 is the graphite film, flame retardant coating 13 adopts glass fiber to make, flame retardant coating 14 adopts fire-retardant polyethylene to make, sheath 3 adopts low smoke and zero halogen fire-retardant polyolefin to make, insulating layer 4 is mineral substance fire prevention insulating layer, metal fire-protecting strip 5 adopts the stainless steel strip to make, heat dissipation layer 6 adopts carbon fiber material to make, high temperature resistant layer 7 adopts alumina ceramic material to make.

The utility model discloses a theory of operation is:

when the cable is used, the sheath 3 is made of low-smoke halogen-free flame-retardant polyolefin, the low-smoke halogen-free flame-retardant polyolefin has a good fireproof and flame-retardant effect and is beneficial to improving the fireproof and flame-retardant performance of the cable body 1, the heat-insulating layer 4 is a mineral fireproof heat-insulating layer, the metal fireproof belt 5 is made of a stainless steel belt and is beneficial to preventing heat and fire from spreading further, the fireproof and flame-retardant performance of the cable body 1 is further improved, then the heat-radiating layer 6 is matched with the high-temperature-resistant layer 7, the heat-radiating layer 6 is made of a carbon fiber material, the high-temperature-resistant layer 7 is made of an aluminum oxide ceramic material and can absorb and radiate heat, the temperature of the heat-insulating layer 4 and the metal fireproof belt 5 can be reduced, when the fire-extinguishing layer 15 is burnt by fire, the fire-extinguishing gel 17 is exposed from the inside the fire, can play a remarkable role in preventing and extinguishing fire, further contributes to improving the fireproof and flame-retardant performance of the cable body 1, through the arrangement of the corrosion-resistant layer 2, the corrosion-resistant layer 2 is a graphite layer, and the graphite layer has good corrosion resistance, is beneficial to preventing the sheath 3 from being corroded and damaged by corrosive liquid, so as to keep the integrity of the sheath 3 and keep the good fireproof effect thereof, the fire-resistant layer 13 is made of glass fiber, the fire-resistant layer 14 is made of fire-resistant polyethylene, the second fireproof layer 11 is arranged on the outer surface of the wire core 12, so that the fireproof and flame-retardant effects are further achieved, the fireproof and flame-retardant performance of the cable body 1 is high, and through the arranged multiple functional layers, it all has good fire prevention, fire behaviour to can make this cable body 1 fire prevention fire-retardant grade have showing and improve, it is good to prevent fires flame retardant efficiency, and its structure is more optimized, the design is more reasonable.

Although the present invention 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 or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a fireproof cable with many flame retardant coating, includes cable body (1), its characterized in that: the cable comprises a cable body (1) and is characterized in that the cable body (1) comprises a sheath (3), a heat insulation layer (4) is fixedly connected to the inner surface of the sheath (3), a metal fireproof strip (5) is fixedly connected to the inner surface of the heat insulation layer (4), a heat dissipation layer (6) is fixedly connected to the inner wall of the metal fireproof strip (5), a high temperature resistant layer (7) is fixedly connected to the inner surface of the heat dissipation layer (6), a first fireproof layer (8) is fixedly connected to the inner surface of the high temperature resistant layer (7), the first fireproof layer (8) comprises a fire extinguishing layer (15), a fire extinguishing cavity (16) is arranged inside the fire extinguishing layer (15), fire extinguishing gel (17) is arranged inside the fire extinguishing cavity (16), a water blocking layer (18) is fixedly connected to the inner surface of the fire extinguishing layer (15), an oxygen insulation layer (9) is fixedly connected to the inner surface of the oxygen insulation layer (9), the inner surface of insulating layer (10) is fixedly connected with second flame retardant coating (11), the inside of second flame retardant coating (11) is provided with a plurality of sinle silks (12).

2. Fireproof cable with multiple fire protection layers according to claim 1, wherein: the second fireproof layer (11) comprises a fireproof layer (13), and a flame-retardant layer (14) is fixedly connected to the inner surface of the fireproof layer (13).

3. Fireproof cable with multiple fire protection layers according to claim 1, wherein: the outer surface of the sheath (3) is fixedly connected with a corrosion-resistant layer (2), and the corrosion-resistant layer (2) is a graphite layer.

4. Fire-resistant cable with multiple fire-resistant layers according to claim 2, characterized in that: the fire-resistant layer (13) is made of glass fiber, and the flame-retardant layer (14) is made of flame-retardant polyethylene.

5. Fireproof cable with multiple fire protection layers according to claim 1, wherein: the sheath (3) is made of low-smoke halogen-free flame-retardant polyolefin, the heat insulation layer (4) is a mineral fireproof heat insulation layer, and the metal fireproof belt (5) is made of a stainless steel belt.

6. Fireproof cable with multiple fire protection layers according to claim 1, wherein: the heat dissipation layer (6) is made of carbon fiber materials, and the high-temperature resistant layer (7) is made of alumina ceramic materials.