Flame-retardant irradiation cable

Abstract

The utility model discloses a flame-retardant irradiation cable which comprises a cable main body, a cable fireproof layer is arranged on the inner side surface of the cable main body, an isolation cavity is formed between the cable fireproof layer and the cable main body, supporting ribs are fixedly connected between the cable main body and the cable fireproof layer, a conductor is arranged on the inner side surface of the cable main body, and the cable fireproof layer is arranged on the conductor. The outer surface of the conductor is coated with a conductor shielding layer, the outer surface of the conductor shielding layer is coated with an insulating layer, the outer end of the conductor is provided with a center filling layer, the inner side surface of the center of the center filling layer is fixedly connected with a center supporting strip, and the center supporting strip is of an octagonal strip structure. The outer surface of the center supporting strip is supported on the outer surface of the insulation shielding layer of the conductor, the supporting performance is improved by adopting a multi-supporting structure, the supporting ribs are distributed in a circle, overhead supporting can be achieved, the heat insulation fireproof supporting performance is improved, the armor layer is divided into the armor sheet layer and the shielding supporting net, and the supporting performance and the shielding performance can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of flame-retardant irradiation cable, more specifically, to a kind of flame-retardant irradiation cable. BACKGROUND

[0002] Cable is a kind of electric energy or signal transmission device, usually by several or several groups of wires, usually by several or several groups of wires (at least two in each group) twisted and formed into a cable like rope, each group of wires is insulated from each other, and often around a center twist, the whole outside is covered with highly insulating cover, cable has internal power, and the characteristics of external insulation, compared with overhead line, cable has the advantages of small interline insulation distance, small space occupation, underground laying without occupying space above ground, not affected by surrounding environmental pollution, high reliability of power transmission, small interference to personal safety and surrounding environment, but high cost, construction, maintenance are more troublesome, and manufacturing is more complex, therefore, cable is mostly used in densely populated and power grid dense area and traffic congestion busy place;Crossing river, crossing river, submarine laying can avoid using large span overhead line, cable can also be used in places where overhead line interference to communication needs to be avoided and places where aesthetics or exposure target needs to be considered;

[0003] In the prior art of the flame-retardant irradiation cable, as disclosed in the authorized announcement No. CN215770659U, a flame-retardant irradiation cable includes a protective sleeve layer, a copper conductor and a mounting seat. The inside of the protective sleeve layer is provided with a cable fireproof layer, and the inside of the cable fireproof layer is provided with a waterproof layer. The outside of the copper conductor is provided with an insulating layer, and the outside of the insulating layer is provided with a fixing sleeve. The outside of the fixing sleeve is provided with a central filling layer, and the outside of the central filling layer is provided with a copper band bundling layer. A plurality of fixing rods are arranged in the copper band bundling layer. The utility model is provided with a mounting sleeve and a snap ring, which can be used to install and fix the cable during use, thereby increasing the stability of the cable during use and improving the practicability. The utility model is provided with a base and a threaded rod, which can be used to support the cable during use. The support height of the cable during use can be adjusted by the threaded rod, which is convenient for the staff to adjust and control according to the actual situation, improves the functionality of the cable, improves the practicability, makes the irradiation cable more convenient to use, and expands the application range.

[0004] In the prior art, as in the above-mentioned patent, the armor layer is made of ordinary armor layer material, which has poor shielding and supporting properties. Moreover, the internal temperature of the cable is high, and the heat insulation and fireproof performance is single. UTILITY MODEL CONTENTS

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a flame-retardant irradiation cable. By adopting a multi-support structure, the supporting property is improved, and the supporting rib is distributed in a circle, which can be supported overhead, thereby improving the heat insulation and fireproof supporting performance. Moreover, the armor layer is divided into an armor sheet layer and a shielding and supporting net, which can improve the supporting and shielding properties.

[0006] To solve the above problems, the utility model adopts the following technical scheme.

[0007] A kind of fire-retardant irradiation cable, including cable main body, the inner side surface of the cable main body is provided with cable fireproof layer, the insulating cavity is formed between the cable fireproof layer and cable main body, support bar is fixedly connected between the cable main body and cable fireproof layer, the inner side surface of the cable main body is provided with conductor, the outer surface of the conductor is covered with conductor shield layer, the outer surface of the conductor shield layer is covered with insulating layer, the outer surface of the insulating layer is covered with insulating shield layer, the outer surface of the center filling layer is fixedly connected with center support strip at the inner side surface, the center support strip adopts octagonal strip structure, the outer surface of the center support strip is supported on the outer surface of the insulating shield layer of conductor, the outer surface of the center filling layer is covered with armor plate layer, the outer surface of the armor plate layer is fixed with shielding support net, by adopting multiple support structure, improve supportability, and support bar is distributed in a circle, can be overhead support, improve heat insulation fireproof support performance, and armor layer is divided into armor plate layer and shielding support net, can improve support performance and shielding performance.

[0008] Further, the outer surface of the cable main body is covered with wear-resistant fire-retardant layer, which is made of fire-retardant polyvinyl chloride material.

[0009] Further, the center support strip is made of FRP reinforcing bar, which is provided with an octagonal strip structure and supported on the outer surface of the insulating shield layer of the conductor.

[0010] Further, the armor plate layer is covered on the outer surface of the center filling layer, and the shielding support net is fixedly covered on the outer surface of the armor plate layer.

[0011] Further, the support bar is made of square strip structure and fixed on the inner side surface between the cable fireproof layer and the cable main body, and is evenly distributed in a circle on the inner side surface between the cable fireproof layer and the cable main body.

[0012] Further, the support bar is made of glass fiber and thermosetting resin material.

[0013] Further, the center filling layer is made of polyethylene filler.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] (1) By adopting multiple support structure, improve supportability, and support bar is distributed in a circle, can be overhead support, improve heat insulation fireproof support performance, and armor layer is divided into armor plate layer and shielding support net, can improve support performance and shielding performance. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the whole structure perspective view of the utility model;

[0017] Fig. 2 It is the whole structure section view of the utility model;

[0018] Fig. 3 It is the whole structure view of the utility model.

[0019] Mark explanation in drawing:

[0020] 1 cable main body, 2 cable fireproof layer, 3 insulation cavity, 4 support rib, 5 center filling layer, 6 conductor, 7 conductor shield layer, 8 insulation layer, 9 insulation shield layer, 10 center support strip, 11 armoring sheet layer, 12 shield support net, 13 wear-resistant flame-retardant layer. Specific implementation

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Embodiment 1

[0023] Please refer to Figs. 1-3The utility model provides an anti -inflammation irradiation cable, including cable main body 1, the inner side surface of cable main body 1 is provided with cable fireproof layer 2, and the insulating cavity 3 is formed between cable fireproof layer 2 and cable main body 1, and the fixed connection between cable main body 1 and cable fireproof layer 2 is provided with support rib 4, and the inner side surface of cable main body 1 is provided with conductor 6, the outer surface of conductor 6 is covered with conductor shield layer 7, and the outer surface of conductor shield layer 7 is covered with insulating layer 8 (insulating layer 8 adopts rubber material, and its rubber material is combined by rubber and various compound agents, and after heating and vulcanization, it is formed into a kind of elastic cable wire suitable for frequent movement, and the working temperature of the material of the rubber can reach 90 degrees, with weather resistance characteristics), the outer surface of insulating layer 8 is covered with insulating shield layer 9 (in the shield cable, the equipotential surface between the wire and the shield layer is concentric cylindrical surface, voltage distribution changes according to simple logarithmic law, and electrostatic field is completely enclosed in insulating layer.Power line and stress are uniform and radiate, and the wire cable manufacturer intersects at right angles, eliminates tangent stress or longitudinal stress in or on the surface of insulation), the outer end of conductor 6 is provided with center filling layer 5, the inner side surface of the center of center filling layer 5 is fixedly connected with center support strip 10, center support strip 10 adopts octagonal strip structure, and the outer surface of center support strip 10 is supported on the outer surface of the insulating shield layer 9 of conductor 6, the outer surface of center filling layer 5 is covered with armoring piece layer 11 (armoring refers to the cable that needs to bear larger mechanical force should have armoring layer, that is, a layer of metal protection is added to the outermost of the product, so as to prevent the internal utility layer from being damaged during transportation and installation), and the outer surface of armoring piece layer 11 is fixed with shield support net 12;By adopting the multi-support structure, the supportability is improved, and the support rib is distributed in a circle, can be overhead support, improves the heat insulation and fireproof support performance, and the armoring layer is divided into armoring piece layer and shield support net, can improve the support performance and shielding performance;

[0024] The outer surface of cable main body 1 is covered with wear-resistant flame-retardant layer 13, which is made of flame-retardant polyvinyl chloride material;

[0025] Center support strip 10 adopts FRP reinforcing rib (FRP is the abbreviation of Fiber Reinforced Plastic, that is, fiber reinforced plastic, which is composed of glass fiber or carbon fiber and thermosetting or thermoplastic resin, FRP material has the characteristics of light weight, high strength and corrosion resistance), which is provided with an octagonal strip structure, and the outer end surface is supported on the outer surface of the insulating shield layer 9 of conductor 6;

[0026] The armored sheet layer 11 is wrapped on the outer surface of the center filling layer 5, and the shielding support net 12 is wrapped and fixed on the outer surface of the armored sheet layer 11; the armored sheet layer 11 is wrapped on the outer end of the center filling layer 5 in a piece-by-piece manner, and the supporting force is poor, and the shielding support net 12 is wrapped on the outer end of the armored sheet layer 11, so that the shielding support can be performed, and the supporting strength is improved;

[0027] The support rib 4 adopts a square strip structure, is fixed on the inner side surface between the cable fireproof layer 2 and the cable main body 1, is uniformly and circularly arranged on the inner side surface between the cable fireproof layer 2 and the cable main body 1, improves the outer layer supporting force, and can be overhead supported between the cable fireproof layer 2 and the cable main body 1, so that the insulation cavity 3 is formed between the cable fireproof layer 2 and the cable main body 1, the insulation cavity structure is slow in heat conduction, and the heat insulation performance can be improved,

[0028] The support rib 4 is made of glass fiber and thermosetting resin material in a composite manner, and the center filling layer 5 adopts polyethylene filling (the polyethylene filling is a common cable filling, has good wettability, heat resistance, mechanical strength and toughness, can protect the insulation and core wire of the cable, and prevents water from entering).

[0029] The above merely describes a preferred specific implementation manner of the present application; however, the protection scope of the present application is not limited to this. Any person skilled in the art, according to the technical scheme and improvement concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.

Claims

1. A flame-retardant irradiated cable comprising a cable body (1), characterized in that: The inner surface of the cable body (1) is provided with a cable fireproof layer (2), and an insulating cavity (3) is formed between the cable body (1) and the cable fireproof layer (2). The cable body (1) and the cable fireproof layer (2) are fixedly connected with a support rib (4). The inner surface of the cable body (1) is provided with a conductor (6). The outer surface of the conductor (6) is covered with a conductor shielding layer (7). The outer surface of the conductor shielding layer (7) is covered with an insulating layer (8). The outer surface of the insulating layer (8) is covered with an insulating shielding layer (9). The outer end of the conductor (6) is provided with a center filling layer (5). The inner surface of the center of the center filling layer (5) is fixedly connected with a center support strip (10). The center support strip (10) adopts an octagonal strip structure. The outer surface of the center support strip (10) is supported on the outer surface of the insulating shielding layer (9) of the conductor (6). The outer surface of the center filling layer (5) is covered with an armor sheet layer (11). The outer surface of the armor sheet layer (11) is fixedly provided with a shielding support net (12).

2. A flame-retardant, radiation-cured cable according to claim 1, characterized in that: The outer surface of the cable body (1) is covered with a wear-resistant flame-retardant layer (13) made of flame-retardant polyvinyl chloride material.

3. A flame-retardant, radiation-cured cable according to claim 1, characterized in that: The center support strip (10) adopts an FRP reinforcing rib, which is provided with an octagonal strip structure, and the outer end surface thereof is supported on the outer surface of the insulating shielding layer (9) of the conductor (6).

4. A flame-retardant, radiation-cured cable according to claim 1, characterized in that: The armor sheet layer (11) is covered on the outer surface of the center filling layer (5), and the shielding support net (12) is fixedly covered on the outer surface of the armor sheet layer (11).

5. A flame-retardant, radiation-cured cable according to claim 1, characterized in that: The support rib (4) adopts a square strip structure, which is fixedly arranged on the inner surface between the cable fireproof layer (2) and the cable body (1). The support ribs (4) are uniformly and circularly arranged on the inner surface between the cable fireproof layer (2) and the cable body (1).

6. A flame-retardant, radiation-cured cable according to claim 1, characterized in that: The support rib (4) is made of glass fiber and thermosetting resin material.

7. A flame-retardant, radiation-cured cable according to claim 1, characterized in that: The center filling layer (5) adopts a polyethylene filler.

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