Flame-retardant fire-resistant cable for modern fire safety

Abstract

The utility model discloses a flame-retardant fire-resistant cable for modern fire safety, which belongs to the technical field of cables, and is characterized by comprising a cable main body, the cable main body comprises a sheath layer, a shielding layer is arranged in the sheath layer, a flame-proof layer is arranged in the shielding layer, an insulating protection layer is arranged in the flame-proof layer, and a flame-retardant layer is arranged in the insulating protection layer. The conductor is arranged in the insulating protection layer; the flame-proof layer comprises a fireproof layer, the fireproof layer is arranged in the shielding layer, and the flame-proof layer can quickly play a role when a fire disaster occurs, so that high-temperature invasion can be effectively resisted, the structures such as the conductor and the insulating layer in the cable are protected from being damaged, the continuity of power transmission is ensured, and the service life of the cable is prolonged. Compared with the existing cable, the flame-retardant and fire-resistant cable has the advantages that the flame-retardant and fire-resistant performance of the cable is greatly improved, and the cable and the surrounding environment are protected from being damaged by fire disasters.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field especially relates to a modern fire safety is with flame -retardant fire -resistant cable. BACKGROUND

[0002] In modern architecture, industrial facilities and various public places, as the important carrier of power transmission and signal transmission, the safety of cable is very important, especially in the emergency situation such as fire, the flame -retardant fire -resistant performance of cable is directly related to the stability of the entire power system and the safety of personnel and property.

[0003] In the process of road construction or building construction, due to the demand of temporary power supply on site, the cable is often pulled very long, so that most of the main body is on the ground surface, when the vehicle passes, it will crush part of the cable, and the cable will be broken after being subjected to the external force of the vehicle for a long time.

[0004] The existing patent (announcement number: CN209708682U) discloses a durable cable, when the cable is subjected to external force, the elastic compression plate can bear the action of external force, and the elastic rod provides an elastic force to buffer part of the external force, and the cooperation of the elastic compression plate and the elastic rod can prevent the cable surface from being broken due to the extrusion of external force.

[0005] In view of the above problems, the existing patent provides a solution, and the existing technology has good use performance when the cable is subjected to force, but the existing conventional cable is easy to be damaged in high temperature environment, especially in high temperature flame baking produced by fire, the conductor and the insulation structure in the cable are easy to be damaged, leading to interruption of power transmission, and the traditional cable only uses ordinary insulation materials, which are easy to be ignited when encountering fire, and will spread rapidly, release a large amount of heat and toxic smoke, not only accelerate the spread of fire, but also pose a serious threat to the life safety of on-site personnel.

[0006] Therefore, a modern fire safety flame-retardant fire-resistant cable is provided. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a modern fire safety flame-retardant fire-resistant cable, which can solve the problem that the existing conventional cable is easy to be damaged in high temperature environment, especially in high temperature flame baking produced by fire, the conductor and the insulation structure in the cable are easy to be damaged, leading to interruption of power transmission, and the traditional cable only uses ordinary insulation materials, which are easy to be ignited when encountering fire, and will spread rapidly, release a large amount of heat and toxic smoke, not only accelerate the spread of fire, but also pose a serious threat to the life safety of on-site personnel.

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a kind of modern fire safety flame-retardant fire-resistant cable, including cable main body, the cable main body includes sheath layer, the inside of sheath layer is provided with shielding layer, and the inside of shielding layer is provided with fireproof layer, the inside of fireproof layer is provided with insulation protective layer, the inside of insulation protective layer is provided with conductor;

[0009] The fireproof layer includes a fire-resistant layer, which is arranged inside the shielding layer and has a fire-retardant layer inside.

[0010] The insulation protective layer includes an inner insulation layer, which is arranged on the surface of the conductor and has an outer insulation layer on the surface of the inner insulation layer.

[0011] Preferably, the fire-retardant layer is made of fire-retardant rubber and is extruded on the surface of the insulation protective layer.

[0012] Preferably, the fire-resistant layer includes ceramic fibers and glass fibers, which are woven on the surface of the fire-retardant layer.

[0013] Preferably, the inner insulation layer is made of polyimide material, and the outer insulation layer is made of cross-linked polyethylene material.

[0014] Preferably, the shielding layer is made of copper foil and is wrapped on the surface of the fireproof layer.

[0015] Preferably, the cable main body further includes a filling layer made of rock wool fibers, which are loosely filled in the gaps inside the cable main body.

[0016] Preferably, the sheath layer is made of low-smoke halogen-free polyolefin material and has a wear-resistant coating on the surface.

[0017] Preferably, the wear-resistant coating is made of polyurethane material and is uniformly coated on the surface of the sheath layer.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] 1. The fireproof layer can quickly play a role when encountering fire, effectively resisting high temperature invasion, protecting the conductor and insulation layer inside the cable main body from being damaged, ensuring the continuity of power transmission, preventing the spread of flames, reducing the burning speed of the cable main body, and reducing heat release.

[0020] 2、The present application can effectively prevent the leakage phenomenon between the conductors, ensure the safe transmission of electric energy in the conductor, and provide reliable insulation protection for the cable body. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole structure diagram of the modern fire safety flame-retardant fire-resistant cable.

[0022] Figure 2 It is an exploded schematic view of the cable body.

[0023] Figure 3 It is an exploded schematic view of the fireproof layer.

[0024] Figure 4 It is an exploded schematic view of the insulation protection layer.

[0025] Figure 5 It is an exploded schematic view of the fireproof layer.

[0026] In the figure, 1, cable body; 2, sheath layer; 3, shielding layer; 4, fireproof layer; 41, fireproof layer; 42, flame-retardant layer; 5, insulation protection layer; 51, inner insulation layer; 52, outer insulation layer; 6, conductor; 7, ceramic fiber; 8, glass fiber; 9, filling layer; 10, wear-resistant coating. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] Please refer to Figures 1-5 The present application provides a technical solution:

[0029] A modern fire safety flame-retardant fire-resistant cable, comprising a cable body 1, the cable body 1 comprising a sheath layer 2, the sheath layer 2 being internally provided with a shielding layer 3, and the shielding layer 3 being internally provided with a fireproof layer 4, the fireproof layer 4 being internally provided with an insulation protection layer 5, and the insulation protection layer 5 being internally provided with a conductor 6.

[0030] The fireproof layer 4 comprises a fireproof layer 41, which is arranged inside the shielding layer 3, and the fireproof layer 41 is internally provided with a flame-retardant layer 42.

[0031] The insulation protective layer 5 comprises an inner insulation layer 51 arranged on the surface of the conductor 6, and the surface of the inner insulation layer 51 is provided with an outer insulation layer 52.

[0032] In the embodiment, the fireproof layer 4 is composed of the fireproof layer 41 and the fire-retardant layer 42. The fire-retardant layer 42 can quickly stop the spread of fire and reduce the burning speed of the cable body 1 and the heat release in the event of fire, effectively protecting the cable body 1 and the surrounding environment from the fire. The fireproof layer 41 can effectively resist the high temperature invasion and protect the conductor 6 and the insulation layer in the cable body 1 from being damaged under the high-temperature flame baking of the fire, ensuring the continuity of power transmission. The insulation protective layer 5 is composed of the inner insulation layer 51 and the outer insulation layer 52. The inner insulation layer 51 can effectively prevent the electric leakage between the conductors 6 and ensure the safe transmission of electric energy in the conductor 6. The outer insulation layer 52 is closely attached to the inner insulation layer 51, further enhancing the overall performance of the insulation protective layer 5 and providing reliable insulation protection for the cable body 1.

[0033] Specifically, as shown in Figure 3 , the fire-retardant layer 42 is composed of fire-retardant rubber and is extruded on the surface of the insulation protective layer 5.

[0034] Specifically, as shown in Figure 3 , the fireproof layer 41 comprises ceramic fibers 7 and glass fibers 8, which are woven on the surface of the fire-retardant layer 42.

[0035] In the embodiment, the fire-retardant layer 42 is composed of fire-retardant rubber, which can quickly stop the spread of fire and reduce the burning speed of the cable body 1. The fireproof layer 41 is composed of the ceramic fibers 7 and the glass fibers 8. The ceramic fibers 7 have excellent fire resistance and can maintain stable structure and performance in high-temperature environment. The glass fibers 8 have good flexibility and mechanical strength. By mixing and weaving the two in a certain proportion, the fireproof layer 41 can effectively resist the high temperature invasion and protect the conductor 6 and the insulation layer in the cable body 1 from being damaged under the high-temperature flame baking of the fire.

[0036] Specifically, as shown in Figure 4 , the inner insulation layer 51 is made of polyimide material, and the outer insulation layer 52 is made of cross-linked polyethylene material.

[0037] In the embodiment, the inner insulation layer 51 is made of polyimide material, which can effectively prevent the electric leakage between the conductors 6. The outer insulation layer 52 is made of cross-linked polyethylene material, which can provide further insulation protection for the cable body 1.

[0038] Specifically, as shown in Figure 4As shown, the shielding layer 3 is made of copper foil and is wrapped around the surface of the flame-retardant layer 4.

[0039] In this embodiment, by setting the shielding layer 3 to be made of copper foil, the stability of electrical energy and signal transmission inside the cable body 1 can be ensured.

[0040] Specifically, such as Figure 2 As shown, the cable body 1 also includes a filling layer 9, which is made of rock wool fibers and the rock wool fibers are loosely filled in the gaps inside the cable body 1.

[0041] In this embodiment: by setting a filling layer 9 made of rock wool fibers, since rock wool fibers have good heat insulation properties and certain flame retardant properties, they play a role in filling, heat insulation and further flame retardant inside the cable body 1. On the one hand, it can prevent the conductors 6 from shaking or colliding due to excessive gaps, thus ensuring the stability of the internal structure of the cable body 1. On the other hand, in the event of a fire, rock wool fibers can absorb some heat, slowing down the rate at which heat is transferred to deeper layers inside the cable body 1, thus protecting the core components of the cable body 1.

[0042] Specifically, such as Figure 2 As shown, the sheath layer 2 is made of low-smoke halogen-free polyolefin material and has a wear-resistant coating 10 on its surface.

[0043] Specifically, such as Figure 2 As shown, the wear-resistant coating 10 is made of polyurethane material and is uniformly coated on the surface of the sheath layer 2.

[0044] In this embodiment: by setting the sheath layer 2 to be made of low smoke halogen-free polyolefin material, the low smoke halogen-free polyolefin material produces very little smoke when burning and does not release toxic gases, which meets the requirements of fire safety. The wear-resistant coating 10 can effectively resist external mechanical wear, such as friction with the ground, pipes, etc. during the laying of the cable body 1, thus extending the service life of the cable body 1.

[0045] Working principle: in the use of cable body 1, the conductor 6 carries out the transmission work of current and signal, and through the inner insulation layer 51 and the outer insulation layer 52, the leakage phenomenon between the conductors 6 can be effectively prevented, the safety transmission of electric energy in the conductor 6 is ensured, the outer insulation layer 52 is closely attached with the inner insulation layer 51, the overall performance of the insulation protection layer 5 is further enhanced, the reliable insulation protection is provided for the cable body 1, and the stability of the electric energy and signal transmission in the cable body 1 is ensured by the shielding layer 3 in the process of transmitting current and signal, when the fire occurs, under the action of the fire-retardant layer 42, the flame can be quickly prevented from spreading when encountering the fire, the burning speed of the cable body 1 is reduced, the heat release is reduced, the cable body 1 and the surrounding environment are effectively protected from the damage of the fire, and through the fire-resistant layer 41, under the high-temperature flame baking of the fire, the high-temperature invasion can be effectively resisted, the conductor 6 and the insulation layer and other structures in the cable body 1 are protected from being damaged, and the continuity of power transmission is ensured.

[0046] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A modern fire-resistant and flame-retardant cable for fire safety, comprising a cable body (1), characterized in that: The cable body (1) includes a sheath layer (2), a shielding layer (3) is provided inside the sheath layer (2), a flame-retardant layer (4) is provided inside the shielding layer (3), an insulating protective layer (5) is provided inside the flame-retardant layer (4), and a conductor (6) is provided inside the insulating protective layer (5). The fireproof layer (4) includes a fire-resistant layer (41), which is disposed inside the shielding layer (3), and a flame-retardant layer (42) is disposed inside the fire-resistant layer (41). The fire-resistant layer (41) includes ceramic fibers (7) and glass fibers (8), which are woven together and wrapped around the surface of the flame-retardant layer (42). The insulating protective layer (5) includes an inner insulating layer (51), which is disposed on the surface of the conductor (6), and an outer insulating layer (52) is disposed on the surface of the inner insulating layer (51). The inner insulation layer (51) is made of polyimide material, and the outer insulation layer (52) is made of cross-linked polyethylene material; The cable body (1) also includes a filling layer (9), which is made of rock wool fiber and the rock wool fiber is loosely filled in the gaps inside the cable body (1).

2. The flame-retardant and fire-resistant cable for modern fire safety as described in claim 1, characterized in that: The flame-retardant layer (42) is made of flame-retardant rubber and is extruded onto the surface of the insulating protective layer (5).

3. The flame-retardant and fire-resistant cable for modern fire safety as described in claim 1, characterized in that: The shielding layer (3) is made of copper foil and is wrapped around the surface of the flame-retardant layer (4).

4. The modern fire-retardant and fire-resistant cable for fire safety as described in claim 1, characterized in that: The sheath layer (2) is made of low-smoke halogen-free polyolefin material and has a wear-resistant coating (10) on its surface.

5. A modern fire-retardant and fire-resistant cable for fire safety as described in claim 4, characterized in that: The wear-resistant coating (10) is made of polyurethane material and is uniformly coated on the surface of the sheath layer (2).

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