CN211980251U - Novel underground heat-insulation fireproof cable - Google Patents

Abstract

The utility model discloses a novel thermal-insulated fireproof cable in pit in cable technical field, including the pit shaft cable conductor, the inside inner sheath that sets up of pit shaft cable conductor, the inner sheath outside sets up the oversheath, the oversheath is equipped with the wearing layer, the inside insulating layer that sets up of wearing layer, set up fire-retardant layer between wearing layer and the insulating layer, set up the armor between inner sheath and the oversheath, the inside first sinle silk that sets up of inner sheath, first sinle silk bottom sets up the second sinle silk, second sinle silk left side sets up the third sinle silk. The fireproof, fire-resistant and flame-retardant performances of the shaft cable are further enhanced through the flame-retardant layer, the heat-insulating layer and the high-temperature-resistant layer, and the shaft cable has a strong heat-insulating and fireproof effect, so that the occurrence of fire disasters is reduced, and the service performance of the cable is enhanced.

Description

Novel underground heat-insulation fireproof cable

Technical Field

The utility model relates to the technical field of cables, specifically a novel thermal-insulated fireproof cable in pit.

Background

Along with the continuous development of economy, equipment degree of automation has been more and more high, the cable is by wide application in all walks of life, the cable is a power transmission equipment, can carry out remote power transmission, it is comparatively strict to its requirement when being applied to equipment in the pit with the cable, but current cable is mostly by the winding fire-resistant cable of mica tape formation, when the burning of starting a fire, fire-resistant effect is poor, the circulation of air in the pit is comparatively not in good order, very easily cause great conflagration, can give out poisonous and harmful gas when the cable is on fire simultaneously, cause serious threat to producers' life. Therefore, a novel underground heat-insulating fireproof cable is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel thermal-insulated fireproof cable in pit to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel thermal-insulated fireproof cable in pit, includes the pit shaft cable conductor, the inside inner sheath that sets up of pit shaft cable conductor, the inner sheath outside sets up the oversheath, the oversheath is equipped with the wearing layer, the inside insulating layer that sets up of wearing layer, set up fire-retardant layer between wearing layer and the insulating layer, set up the armor between inner sheath and the oversheath, the inside first sinle silk that sets up of inner sheath, first sinle silk outside sets up first sinle silk around the covering, first sinle silk bottom sets up the second sinle silk, second sinle silk outside sets up the second sinle silk around the covering, second sinle silk left side sets up the third sinle silk, the third sinle silk outside sets up the third sinle silk around the covering, the inner sheath respectively with first sinle silk, second sinle silk around covering, second sinle silk around set up the filler between.

Preferably, the inner sheath is provided with an elastic wrapping layer, a high temperature resistant layer is arranged outside the elastic wrapping layer, and a waterproof layer is arranged between the elastic wrapping layer and the high temperature resistant layer.

Preferably, first line core all is equipped with rubber insulation layer around covering, second line core around covering and third line core around the covering, the rubber insulation layer outside sets up the heat-conducting layer, set up the fibre weaving layer between rubber insulation layer and the heat-conducting layer.

Preferably, first line core sets up inside the inner sheath around covering, second line core around covering and third line core around the form that the covering is the circumference.

Preferably, first sinle silk, second sinle silk and third sinle silk are formed as the wire transposition by many copper wires respectively, first sinle silk, second sinle silk and third sinle silk are respectively through installing in first sinle silk around covering, second sinle silk around covering and third sinle silk around the covering in then be the form of circumference and set up inside the inner sheath.

Preferably, the armor layer is woven by stainless steel wires between the outer sheath and the inner sheath, the outer wall of the armor layer is bonded with the inner wall of the heat insulation layer, and the inner wall of the armor layer is bonded with the outer wall of the high temperature resistant layer.

Compared with the prior art, the beneficial effects of the utility model are that: firstly, the friction between the shaft cable and an external object during installation or work is reduced through the wear-resistant layer, the harm of spontaneous combustion or explosion of the shaft cable caused by heat generation due to friction is reduced, the heat insulation and fire prevention capability of the heat insulation layer is enhanced according to the heat insulation and heat prevention performance of the composite material, the fire prevention effect of the shaft cable is fundamentally enhanced, halogen elements are added into the flame retardant layer, and hydrogen halide is released when the flame retardant layer is heated, so that the material is slowly combusted or extinguished, thereby achieving the purpose of flame retardance, the high temperature resistant layer is made of high-expansion glass fiber, and the outer surface of the high temperature resistant layer is covered with iron oxide red silica gel, so that the damage of high temperature and flame can be prevented, the use requirement of the shaft cable is further enhanced, the fire prevention and fire resistance of the shaft cable are further enhanced according to the combination of the flame retardant layer, the heat insulation layer and the, strengthen the performance of pit shaft cable conductor, protection of rethread heat-conducting layer, rubber insulation layer to first sinle silk, second sinle silk and third sinle silk further strengthens the explosion-proof thermal-insulated effect of pit shaft cable conductor, improves the security performance of pit shaft cable conductor when using in the pit, guarantees producers' life safety.

Drawings

Fig. 1 is a schematic structural view of a shaft cable of the present invention;

FIG. 2 is a schematic view of the structure of the outer sheath of the present invention;

FIG. 3 is a schematic view of the inner sheath structure of the present invention;

fig. 4 is the utility model discloses a first refill is around covering structure schematic diagram.

In the figure: 1 pit shaft cable conductor, 2 inner sheaths, 21 elasticity parcel layer, 22 waterproof layer, 23 high temperature resistant layer, 3 oversheath, 31 wearing layer, 32 fire-retardant layer, 33 insulating layer, 4 armor, 5 first sinle silk, 6 first sinle silk around covering, 61 rubber insulation layer, 62 fiber weaving layer, 63 heat-conducting layer, 7 second sinle silk, 8 second sinle silks around covering, 9 third sinle silk, 10 third sinle silks around covering, 11 fillers.

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. 1-4, the present invention provides a technical solution: a novel underground heat-insulation fireproof cable comprises a shaft cable 1, an inner sheath 2 is arranged inside the shaft cable 1, an outer sheath 3 is arranged outside the inner sheath 2, the outer sheath 3 is provided with a wear-resistant layer 31, the wear-resistant layer 31 is mainly made of PVC materials, the friction force on the surface of the wear-resistant layer 31 is reduced according to the insulation performance of the PVC materials, the friction between the shaft cable 1 and the ground is further reduced, the damage on the surface of the shaft cable 1 is reduced, a heat-insulation layer 33 is arranged inside the wear-resistant layer 31, the heat-insulation layer 33 is mainly an insulation protection layer formed by compounding resin serving as a main material and other reinforcing materials, the heat-insulation fireproof capacity of the heat-insulation layer 33 is enhanced according to the heat insulation and heat protection performance of composite materials, the fireproof effect of the shaft cable 1 is fundamentally enhanced, a flame-retardant layer 32 is arranged between the wear, the better the flame retardant property is, halogen element is added into the material of the flame retardant layer 32, and hydrogen halide is released when the halogen element is heated, so that the material is slow in burning or extinguished, thereby achieving the purpose of flame retardance, an armor layer 4 is arranged between an inner sheath 2 and an outer sheath 3, a first core 5 is arranged inside the inner sheath 2, a first core wrapping layer 6 is arranged outside the first core 5, a second core 7 is arranged at the bottom of the first core 5, a second core wrapping layer 8 is arranged outside the second core 7, a third core 9 is arranged on the left side of the second core 7, a third core wrapping layer 10 is arranged outside the third core 9, a shaft cable 1 is formed by the first core 5, the second core 7 and the third core 9, firstly, the friction between the shaft cable 1 and an external object during installation or work is reduced by the outermost wear-resistant layer 31, and the harm of spontaneous combustion or explosion of the shaft cable 1 caused by heat generation due to friction is reduced, the heat insulation and fire prevention capability of the heat insulation layer 33 is enhanced according to the heat insulation and heat prevention performance of the composite material, the fire prevention effect of the shaft cable 1 is fundamentally enhanced, halogen elements are added into the flame retardant layer 32, hydrogen halide is released when the flame retardant layer is heated, the material is burnt slowly or extinguished, and the flame retardant purpose is achieved, the high temperature resistant layer 23 is made of high-bulk glass fiber, and the outer surface of the high temperature resistant layer is covered with iron oxide red silica gel, so that the high temperature and flame damage can be prevented, the use requirement of the shaft cable 1 is further improved, the fire prevention, fire resistance and flame retardant performance of the shaft cable 1 are further enhanced according to the combination of the flame retardant layer 32, the heat insulation layer 33 and the high temperature resistant layer 23, and the high heat insulation and fire prevention effect is achieved, so that the occurrence of fire is reduced, the use performance of the shaft cable 1 is enhanced, the filler 11 is arranged among the inner sheath 2, the first wire core, the filler 11 is composed mainly of chloroprene rubber, which has excellent flame resistance and flame retardance.

Wherein, the inner sheath 2 is provided with an elastic wrapping layer 21, the elastic wrapping layer 21 takes synthetic plastics as main materials, the elastic performance of the elastic wrapping layer 21 can be enhanced according to the plasticity of the synthetic plastics, the filler 11 can be conveniently and fully installed on the elastic wrapping layer 21, the stability of the first wire core wrapping layer 6, the second wire core wrapping layer 8 and the third wire core wrapping layer 10 in the inner sheath 2 is ensured, a high temperature resistant layer 23 is arranged outside the elastic wrapping layer 21, the high temperature resistant layer 23 is made of high-bulkiness glass fiber, and the outer surface of the high temperature resistant layer is covered with iron oxide red silica gel, which can block the damage of high temperature and flame, the use requirement of the shaft cable 1 is further improved, a waterproof layer 22 is arranged between the elastic wrapping layer 21 and the high temperature resistant layer 23, the waterproof layer 22 mainly adopts rubber materials, and the anti-permeation and connection performance of the waterproof layer 22 are enhanced according to stronger waterproof performance and cohe, the high temperature resistant layer 23 further enhances the fireproof, fire-resistant and flame-retardant performances of the shaft cable 1, has a strong heat-insulating and fireproof effect, and enhances the usability of the shaft cable 1;

the first wire core wrapping layer 6, the second wire core wrapping layer 8 and the third wire core wrapping layer 10 are all provided with rubber insulating layers 61, the rubber insulating layers 61 mainly use synthetic rubber as a main material, according to the insulativity and the air tightness of the synthetic rubber, the wire cores in the rubber insulating layers 61 are guaranteed not to be in contact with the outside, heat conducting layers 63 are arranged outside the rubber insulating layers 61, the heat conducting layers 63 are made of flexible heat conducting cushions, not only can heat be transferred to the outside by the wire cores inside be completed, but also the insulation and sealing effects can be achieved, a fiber weaving layer 62 is arranged between the rubber insulating layers 61 and the heat conducting layers 63, the fiber weaving layer 62 is formed by melting various ores at high temperature, has better insulativity and higher tensile resistance, and further enhances the explosion-proof and heat-insulating effects of the shaft cable 1 through the heat conducting layers 63 and the protection of the rubber insulating layers 61 on the first wire core 5, the safety performance of the shaft cable 1 in underground use is improved, and the life safety of production personnel is ensured;

the first wire core wrapping layer 6, the second wire core wrapping layer 8 and the third wire core wrapping layer 10 are circumferentially arranged inside the inner sheath 2, and the cross section of the shaft cable 1 is circular, so the first wire core wrapping layer 6, the second wire core wrapping layer 8 and the third wire core wrapping layer 10 are circumferentially arranged inside the inner sheath 2;

the first wire core 5, the second wire core 7 and the third wire core 9 are formed by twisting a plurality of copper wires as conducting wires respectively, and the first wire core 5, the second wire core 7 and the third wire core 9 are arranged in the inner sheath 2 in a circumferential mode respectively by being arranged in the first wire core wrapping layer 6, the second wire core wrapping layer 8 and the third wire core wrapping layer 10;

armor 4 is woven by the stainless steel wire between outer sheath 3 and inner sheath 2, and the stainless steel wire not only has higher corrosion resistance, has stronger hardness nature moreover, when strengthening 1 explosion-proof fire prevention of pit shaft cable line, further strengthens 1 performance of pit shaft cable line, and 4 outer walls of armor and the bonding of insulating layer 33 inner wall link to each other, and 4 inner walls of armor and the bonding of high temperature resistant layer 23 outer wall link to each other.

The working principle is as follows: firstly, the friction between the shaft cable 1 and an external object during installation or work is reduced through the outermost wear-resistant layer 31, the harm of spontaneous combustion or explosion of the shaft cable 1 caused by heat generation due to friction is reduced, the heat insulation and fire prevention capability of the heat insulation layer 33 is enhanced according to the heat insulation and heat prevention performance of the composite material, the fire prevention effect of the shaft cable 1 is fundamentally enhanced, halogen elements are added into the flame-retardant layer 32, hydrogen halide is released when the flame-retardant layer is heated, the burning of the material is retarded or extinguished, so that the flame-retardant purpose is achieved, the high temperature resistant layer 23 is made of high-bulkiness glass fiber, and the outer surface of the high temperature resistant layer is covered with iron oxide red silica gel, so that the damage of high temperature and flame can be prevented, the use requirement of the shaft cable 1 is further improved, the fire prevention, fire resistance and fire retardation performance of the shaft cable 1 are further enhanced according to the combination of, thereby reduce the emergence of conflagration, strengthen pit shaft cable conductor 1's performance, rethread heat-conducting layer 63, rubber insulation layer 61 is to first core 5, the protection of second core 7 and third core 9, further strengthen pit shaft cable conductor 1's explosion-proof thermal-insulated effect, the security performance of pit shaft cable conductor 1 when using in the pit is improved, guarantee producers ' life safety.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a novel thermal-insulated fireproof cable in pit, includes pit shaft cable conductor (1), its characterized in that: the inner sheath (2) is arranged inside the shaft cable (1), the outer sheath (3) is arranged outside the inner sheath (2), the outer sheath (3) is provided with a wear-resistant layer (31), a heat-insulating layer (33) is arranged inside the wear-resistant layer (31), a flame-retardant layer (32) is arranged between the wear-resistant layer (31) and the heat-insulating layer (33), an armor layer (4) is arranged between the inner sheath (2) and the outer sheath (3), a first wire core (5) is arranged inside the inner sheath (2), a first wire core is arranged outside the first wire core (5) and surrounds the covering (6), a second wire core (7) is arranged at the bottom of the first wire core (5), a second wire core (8) is arranged outside the second wire core (7), a third wire core (9) is arranged on the left side of the second wire core (7), and a third wire core layer (10) is arranged outside the third wire core (9), inner sheath (2) respectively with first line core around covering (6), second line core around covering (8), third line core around setting up filler (11) between covering (10).

2. The novel downhole thermal insulation fireproof cable according to claim 1, wherein: the inner sheath (2) is equipped with elastic wrapping layer (21), elastic wrapping layer (21) outside sets up high temperature resistant layer (23), set up waterproof layer (22) between elastic wrapping layer (21) and high temperature resistant layer (23).

3. The novel downhole thermal insulation fireproof cable according to claim 1, wherein: first line core all is equipped with rubber insulation layer (61) around covering (6), second line core around covering (8) and third line core around covering (10), rubber insulation layer (61) outside sets up heat-conducting layer (63), set up fibre weaving layer (62) between rubber insulation layer (61) and heat-conducting layer (63).

4. The novel downhole thermal insulation fireproof cable according to claim 1, wherein: first line core sets up inside inner sheath (2) around covering (6), second line core around covering (8) and third line core around covering (10) the form that is the circumference.

5. The novel downhole thermal insulation fireproof cable according to claim 1, wherein: first sinle silk (5), second sinle silk (7) and third sinle silk (9) are formed as the wire transposition by many copper wires respectively, first sinle silk (5), second sinle silk (7) and third sinle silk (9) are respectively through installing in first sinle silk around covering (6), second sinle silk around covering (8) and third sinle silk then be the form of circumference and set up inside inner sheath (2) around covering (10).

6. The novel downhole thermal insulation fireproof cable according to claim 1, wherein: armor (4) are woven by stainless steel wire between outer sheath (3) and inner sheath (2), armor (4) outer wall and insulating layer (33) inner wall bonding link to each other, armor (4) inner wall and high temperature resistant layer (23) outer wall bonding link to each other.

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