Flame-retardant high-temperature-resistant cable

Abstract

The utility model discloses a flame-retardant high-temperature-resistant cable, and belongs to the technical field of cables, and the cable comprises a glass fiber tape, the outer surface of the glass fiber tape is fixedly connected with a flame-retardant layer, the inner ring of the flame-retardant layer is fixedly connected with a metal shielding layer, the inner wall of the metal shielding layer is fixedly connected with a heat dissipation body, and the interior of the heat dissipation body is fixedly connected with a plurality of groups of heat dissipation mechanisms. The heat dissipation mechanism comprises a plurality of first fixing pipes, the outer walls of the first fixing pipes are circumferentially and fixedly connected with the inner wall of the heat dissipation body, second fixing pipes are arranged between the first fixing pipes, connecting blocks are fixedly connected between the first fixing pipes and between the second fixing pipes, and the heat dissipation body is filled with cooling water. Wire core conductors are fixedly installed in the first fixing pipe and the second fixing pipe. According to the invention, the cooling water is used to rapidly dissipate heat of the wire core conductor, so that the heat dissipation effect of the wire core conductor during working is improved, and the service life of the wire core conductor is prolonged.

Description

Technical Field

[0001] The present application relates to the field of cable technology, and in particular to a flame-retardant and high-temperature resistant cable. Background Art

[0002] Cable is an electrical energy or signal transmission device, usually composed of several or several groups of wires. Since cables play an important role in power or information transmission, they need to have good fire retardancy.

[0003] In the patent document with the published announcement number CN208903705U, a cable with fire retardant function is provided, which relates to the technical field of cable equipment. The cable with fire retardant function includes an outer sheath, a fire retardant layer, an inner lining layer, a metal shielding layer, a thermal insulation filling layer, a heat sink, a heat dissipation mechanism, a core conductor and a rubber sleeve. The outer surface of the fire retardant layer is fixedly connected to the inner wall of the outer sheath, the outer surface of the inner lining layer is fixedly connected to the inner wall of the fire retardant layer, and the outer surface of the metal shielding layer is fixedly connected to the inner wall of the inner lining layer. The cable with fire retardant function effectively forms protection for the interior of the device by providing an outer sheath, a fire retardant layer, an inner lining layer, a thermal insulation filling layer and a heat sink, which can effectively reduce the probability of the cable burning. Then, through the effect of the thermal insulation filling layer, when the cable accidentally burns, the external temperature can be separated from the core conductor, thereby protecting the core conductor inside the cable.

[0004] In actual use, especially in high-temperature environments such as steel mills, foundries, and forging workshops, the above cables are used in high-temperature environments. Due to the high temperature of the environment and the use scenarios in these special workshops, the cable itself only dissipates heat through the traditional coating layer. We have found in actual use that the life of the cable often does not reach 1 year and needs to be replaced, which seriously affects production efficiency and increases costs. Utility Model Content

[0005] In view of the deficiencies of the prior art, the present application provides a flame retardant and high temperature resistant cable, which overcomes the deficiencies of the prior art and aims to solve the problems in the prior art.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a flame-retardant and high-temperature resistant cable, comprising a glass fiber belt, the outer surface of the glass fiber belt is fixedly connected to a flame-retardant layer, the inner circle of the flame-retardant layer is fixedly connected to a metal shielding layer, the inner wall of the metal shielding layer is fixedly connected to a heat sink, the interior of the heat sink is fixedly connected to a plurality of groups of heat dissipation mechanisms, the heat dissipation mechanisms comprise a plurality of groups of first fixed tubes, the outer walls of the plurality of groups of the first fixed tubes are circularly fixedly connected to the inner wall of the heat sink, second fixed tubes are arranged between the plurality of groups of the first fixed tubes, connecting blocks are fixedly connected between the plurality of groups of the first fixed tubes and the second fixed tubes, the interior of the heat sink is filled with cooling water, and the interiors of the first fixed tubes and the second fixed tubes are both fixedly installed with core conductors.

[0007] By adopting the above technical scheme, the glass fiber tape has good tensile resistance, which is beneficial to strengthening the core conductor. The flame retardant layer itself has flame retardant properties. Multiple groups of core conductors are respectively installed in the first fixed tube and the connecting block. The gaps between the multiple groups of core conductors are increased through the second fixed tube. At the same time, the heat on the core conductor is transferred to the first fixed tube and the connecting block. The core conductor is quickly cooled by cooling water, which improves the heat dissipation effect of the core conductor when it is working, which is beneficial to increasing the service life of the core conductor.

[0008] As a preferred technical solution of the present application, a heat-resistant belt is fixedly connected to the outer surface of the core conductor, and the material of the heat-resistant belt is mica.

[0009] By adopting the above technical solution, mica has the characteristic of high temperature resistance, and its maximum temperature resistance can reach 600°C, which can effectively prevent the risk of spontaneous combustion of the core conductor due to excessive temperature.

[0010] As a preferred technical solution of the present application, the first fixed tube and the second fixed tube are made of aluminum.

[0011] By adopting the above technical solution, the first fixed tube and the second fixed tube are aluminum heat sinks. Since the outer walls of the first fixed tube and the second fixed tube are in direct contact with the cooling water, aluminum has a good thermal conductivity and can quickly transfer the heat of the core conductor to the cooling water, which is beneficial to the rapid heat dissipation of the core conductor.

[0012] As a preferred technical solution of the present application, a water-blocking yarn is fixedly connected to the outer surface of the flame-retardant layer.

[0013] By adopting the above technical scheme, the material of the water-blocking yarn is a composite of polyester fiber woven cloth and highly water-absorbent material, which has the function of absorbing water and swelling. If the wear-resistant layer is damaged, when water enters the wound, it can absorb the water by utilizing its huge water absorption performance. The powder quickly expands to hundreds of times its own volume and becomes a gel, which can reduce the penetration of water and moisture in the cable and increase the working life of the cable.

[0014] As a preferred technical solution of the present application, a wear-resistant layer is fixedly connected to the outer surface of the flame-retardant layer, and the material of the wear-resistant layer is polyetheretherketone.

[0015] By adopting the above technical solution, the wear resistance of the cable when it is pulled on the ground during installation is improved through the wear-resistant layer.

[0016] As a preferred technical solution of the present application, the material of the core conductor is pure copper.

[0017] By adopting the above technical solution, the copper core conductor has the characteristics of good conductivity and low resistance, which effectively improves the practicability of the core conductor when in use.

[0018] Beneficial effects of this application:

[0019] 1. The glass fiber tape has good tensile resistance, which is beneficial to strengthen the core conductor. The flame retardant layer itself has flame retardant properties. Multiple groups of core conductors are respectively installed in the first fixed tube and the connecting block. The gaps between the multiple groups of core conductors are increased through the second fixed tube. At the same time, the heat on the core conductor is transferred to the first fixed tube and the connecting block. The core conductor is quickly cooled by cooling water, which improves the heat dissipation effect of the core conductor when it is working, which is beneficial to increase the service life of the core conductor.

[0020] 2. Mica has the characteristics of high temperature resistance, and its maximum temperature resistance can reach 600℃, which can effectively prevent the risk of spontaneous combustion of the core conductor due to excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a schematic diagram of the structure at A of this application;

[0023] Figure 3 This is a schematic diagram of the core conductor structure of the present application.

[0024] In the figure: 1. glass fiber tape; 2. flame retardant layer; 4. metal shielding layer; 5. heat sink; 6. cooling water; 7. heat dissipation mechanism; 701. first fixed tube; 702. second fixed tube; 703. connecting block; 8. heat-resistant belt; 9. core conductor; 10. water-blocking yarn; 11. wear-resistant layer. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] Reference Figure 1-3 A flame-retardant and high-temperature resistant cable comprises a glass fiber tape 1, a flame-retardant layer 2 is fixedly connected to the outer surface of the glass fiber tape 1, a metal shielding layer 4 is fixedly connected to the inner circle of the flame-retardant layer 2, a heat sink 5 is fixedly connected to the inner wall of the metal shielding layer 4, a plurality of heat sink mechanisms 7 are fixedly connected to the inside of the heat sink 5, the heat sink mechanism 7 comprises a plurality of first fixed tubes 701, the outer walls of the plurality of first fixed tubes 701 are circumferentially fixedly connected to the inner wall of the heat sink 5, a second fixed tube 702 is arranged between the plurality of first fixed tubes 701, a connection block 703 is fixedly connected between the plurality of first fixed tubes 701 and the second fixed tubes 702, the inside of the heat sink 5 is filled with cooling water 6, and a wire core conductor 9 is fixedly installed inside the first fixed tube 701 and the second fixed tube 702. The material of the first fixed tube 701 and the second fixed tube 702 is aluminum.

[0027] The glass fiber tape 1 has good tensile strength, which is conducive to strengthening the core conductor 9. The flame retardant layer 2 itself has flame retardant properties. Multiple groups of core conductors 9 are respectively installed in the first fixed tube 701 and the connecting block 703. The gaps between the multiple groups of core conductors 9 are increased through the second fixed tube 702. At the same time, the heat on the core conductor 9 is transferred to the first fixed tube 701 and the connecting block 703. The core conductor 9 is quickly cooled by the cooling water 6, which improves the heat dissipation effect of the core conductor 9 during operation and is conducive to increasing the service life of the core conductor 9. The first fixed tube 701 and the second fixed tube 702 are aluminum heat sinks. Since the outer walls of the first fixed tube 701 and the second fixed tube 702 are in direct contact with the cooling water 6, aluminum has a good thermal conductivity and can quickly transfer the heat of the core conductor 9 to the cooling water 6, which is conducive to the rapid heat dissipation of the core conductor 9.

[0028] Reference Figure 1-3The outer surface of the core conductor 9 is fixedly connected with a heat-resistant belt 8, and the material of the heat-resistant belt 8 is mica. The outer surface of the flame-retardant layer 2 is fixedly connected with a water-blocking yarn 10. The material of the core conductor 9 is pure copper; through the characteristics of mica itself, it has the characteristics of high temperature resistance, and its maximum temperature resistance can reach 600°C, which effectively prevents the risk of spontaneous combustion of the core conductor 9 due to excessive combustion. The material of the water-blocking yarn 10 is a composite of polyester fiber woven cloth and highly absorbent material, which has the function of absorbing water and swelling. If the wear-resistant layer 11 is damaged, when water enters the wound, it can use its huge water absorption performance to absorb water, and the powder quickly expands to hundreds of times its own volume and becomes a gel, which can reduce the infiltration of water and moisture in the cable and increase the working life of the cable. The copper core wire has the characteristics of good conductivity and low resistance, which effectively improves the practicality of the core conductor 9 when used.

[0029] Reference Figure 2 The outer surface of the flame retardant layer 2 is fixedly connected with a wear-resistant layer 11, and the material of the wear-resistant layer 11 is polyetheretherketone; the wear-resistant layer 11 improves the wear resistance of the cable when it is pulled on the ground during installation.

[0030] Working principle: The glass fiber tape 1 has good tensile resistance, which is conducive to strengthening the core conductor 9. The flame retardant layer 2 itself has flame retardant properties. Multiple groups of core conductors 9 are respectively installed in the first fixed tube 701 and the connecting block 703. The gaps between the multiple groups of core conductors 9 are increased through the second fixed tube 702. At the same time, the heat on the core conductor 9 is transferred to the first fixed tube 701 and the connecting block 703. The core conductor 9 is quickly cooled by the cooling water 6, which improves the heat dissipation effect of the core conductor 9 when it is working, which is conducive to improving the service life of the core conductor 9. The mica itself has the characteristics of high temperature resistance, and its maximum temperature resistance can reach 600°C, which effectively prevents the risk of spontaneous combustion of the core conductor 9 due to excessive heat.

[0031] Among them, the first fixed tube 701 and the second fixed tube 702 are aluminum heat sinks. Since the outer walls of the first fixed tube 701 and the second fixed tube 702 are in direct contact with the cooling water 6, aluminum has a good thermal conductivity and can quickly transfer the heat of the core conductor 9 to the cooling water 6, which is beneficial for the core conductor 9 to quickly dissipate heat. The water-blocking yarn 10 is made of a composite of polyester fiber woven cloth and highly water-absorbent material, and has the function of absorbing water and swelling. If the wear-resistant layer 11 is damaged, when water enters the wound, it can absorb water by using its huge water absorption performance, and the powder quickly expands to hundreds of times its own volume and becomes a gel, which can reduce the infiltration of water and moisture in the cable and improve the working life of the cable.

[0032] At the same time, the wear-resistant layer 11 improves the wear resistance of the cable when it is pulled on the ground during installation;

[0033] In addition, the copper core wire has the characteristics of good conductivity and low resistance, which effectively improves the practicality of the core conductor 9 when in use.

[0034] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A flame retardant and high temperature resistant cable, comprising a glass fiber tape (1), characterized in that: The outer surface of the glass fiber tape (1) is fixedly connected with a flame retardant layer (2), the inner circle of the flame retardant layer (2) is fixedly connected with a metal shielding layer (4), the inner wall of the metal shielding layer (4) is fixedly connected with a heat sink (5), the interior of the heat sink (5) is fixedly connected with a plurality of heat sink mechanisms (7), the heat sink mechanism (7) comprising a plurality of first fixed tubes (701), the outer walls of the plurality of first fixed tubes (701) being circumferentially fixedly connected with the inner wall of the heat sink (5), a second fixed tube (702) being arranged between the plurality of first fixed tubes (701), a connecting block (703) being fixedly connected between the plurality of first fixed tubes (701) and the second fixed tubes (702), the interior of the heat sink (5) being filled with cooling water (6), and a wire core conductor (9) being fixedly installed inside the first fixed tubes (701) and the second fixed tubes (702).

2. The flame-retardant and high-temperature resistant cable according to claim 1, characterized in that: The outer surface of the core conductor (9) is fixedly connected with a heat-resistant belt (8), and the heat-resistant belt (8) is made of mica.

3. The flame-retardant and high-temperature resistant cable according to claim 1, characterized in that: The first fixed tube (701) and the second fixed tube (702) are made of aluminum.

4. The flame-retardant and high-temperature resistant cable according to claim 1, characterized in that: The outer surface of the flame retardant layer (2) is fixedly connected with a water-blocking yarn (10).

5. The flame-retardant and high-temperature resistant cable according to claim 1, characterized in that: The outer surface of the flame retardant layer (2) is fixedly connected to a wear-resistant layer (11), and the material of the wear-resistant layer (11) is polyetheretherketone.

6. The flame-retardant and high-temperature resistant cable according to claim 1, characterized in that: The material of the core conductor (9) is pure copper.

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