CN210073419U

CN210073419U - Fireproof flame-retardant cable

Info

Publication number: CN210073419U
Application number: CN201921336561.3U
Authority: CN
Inventors: 储旭超; 刘军波; 吴彩琴; 刘旭; 韩明伟
Original assignee: WUXI CITY QUNXING WIRE AND CABLE CO Ltd
Current assignee: WUXI CITY QUNXING WIRE AND CABLE CO Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-02-14
Anticipated expiration: 2029-08-19

Abstract

The utility model relates to the technical field of cables, in particular to a fireproof flame-retardant cable, which comprises a wire core, wherein a filling layer covers the surface of the wire core, an insulating layer covers the surface of the filling layer, an electromagnetic shielding layer covers the surface of the insulating layer, a fireproof layer covers the surface of the electromagnetic shielding layer, and a flame-retardant layer covers the surface of the fireproof layer; the utility model discloses an aldehyde varnished wire layer, the silastic-layer, the glass fiber layer, the chlorinated rubber basic unit, the polyacrylic resin layer, the perchloroethylene resin layer, modified polypropylene resin, the setting of the fire-retardant EPS of graphite alkene and oxidation graphite alkene nanometer piece, make the cable possess the good advantage of fire prevention fire resistance to solved traditional insulating material and did not possess the function of fire prevention basically, consequently under the condition that the conflagration took place, insulating material can be damaged, just also lost its insulating effect, thereby very easily take place the problem of incident.

Description

Fireproof flame-retardant cable

Technical Field

The utility model relates to the technical field of cables, specifically be a fire prevention fire resistance cable.

Background

The power cable is used for transmitting and distributing electric energy, is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and transmission lines under river-crossing seawater, is gradually increased in proportion in the power line, is a cable product used for transmitting and distributing high-power electric energy in a trunk line of a power system, and comprises various insulated power cables with voltage grades of 1-500KV and above.

The insulating material is a non-conductive material under the allowable voltage, but is not an absolutely non-conductive material, the processes of conduction, polarization, loss, breakdown and the like can also occur under the action of certain external electric field intensity, the insulating material can also age after long-term use, most of the insulating material is applied to the surface of the wire, but the traditional insulating material basically has no fireproof function, so that the insulating material can be damaged under the condition of fire, the insulating function of the insulating material is lost, and safety accidents are very easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire prevention flame retardant cable possesses the good advantage of fire prevention flame retardant, has solved traditional insulating material and has all not possessed the function of fire prevention basically, consequently under the condition that the conflagration took place, insulating material can be damaged, has just also lost its insulating effect to very easily take place the problem of incident.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire prevention fire resistance cable, includes the sinle silk, the surface covering of sinle silk has the filling layer, the surface covering of filling layer has the insulating layer, the surface covering of insulating layer has the electromagnetic shielding layer, the surface covering of electromagnetic shielding layer has the flame retardant coating, the surface covering of flame retardant coating has the fire retardant coating, be the bonding between filling layer, insulating layer, electromagnetic shielding layer, flame retardant coating and the fire retardant coating, the insulating layer includes acetal lacquer coated wire layer, silastic-layer and glass fiber layer, the flame retardant coating includes chlorinated rubber basic unit, polyacrylic resin layer and perchloroethylene resin layer, the fire retardant coating includes the fire-retardant EPS of modified polypropylene resin, graphite alkene and oxidation graphite alkene nanometer piece.

Preferably, the surface of the acetal enameled wire layer is in contact with the inner wall of the silicone rubber layer, the surface of the silicone rubber layer is in contact with the inner wall of the glass fiber layer, and the acetal enameled wire layer, the silicone rubber layer and the glass fiber layer are all bonded.

Preferably, the surface of the chlorinated rubber base layer is in contact with the inner wall of the polyacrylic acid resin layer, the surface of the polyacrylic acid resin layer is in contact with the inner wall of the perchloroethylene resin layer, and the chlorinated rubber base layer, the polyacrylic acid resin layer and the perchloroethylene resin layer are all bonded.

Preferably, the surface of the modified polypropylene resin is in contact with the inner wall of the graphene flame-retardant EPS, the surface of the graphene flame-retardant EPS is in contact with the inner wall of the graphene oxide nanosheet, and the modified polypropylene resin, the graphene flame-retardant EPS and the graphene oxide nanosheet are all bonded.

Preferably, the main materials of the modified polypropylene resin are polypropylene resin and basic magnesium sulfate whisker, and the modified polypropylene resin is formed by mixing polypropylene resin and basic magnesium sulfate whisker.

Preferably, the inside of filling layer includes the nylon rope, the quantity of nylon rope is six, and uses the sinle silk to carry out equidistance annular distribution as the benchmark.

Preferably, the main material of the filling layer is a ceramic low-smoke halogen-free polyolefin fire-resistant material, and the electromagnetic shielding layer is formed by distributing a plurality of copper wires in a net form.

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

the utility model discloses an aldehyde varnished wire layer, the silastic-layer, the glass fiber layer, the chlorinated rubber basic unit, the polyacrylic resin layer, the perchloroethylene resin layer, modified polypropylene resin, the setting of the fire-retardant EPS of graphite alkene and oxidation graphite alkene nanometer piece, make the cable possess the good advantage of fire prevention fire resistance to solved traditional insulating material and did not possess the function of fire prevention basically, consequently under the condition that the conflagration took place, insulating material can be damaged, just also lost its insulating effect, thereby very easily take place the problem of incident.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial cross-sectional view of the insulating layer of the present invention;

FIG. 3 is a partial cross-sectional view of the fire barrier of the present invention;

fig. 4 is a partial cross-sectional view of the flame retardant layer of the present invention.

In the figure: 1. a wire core; 2. a filling layer; 3. an insulating layer; 31. an aldehyde enamel coating layer; 32. a silicone rubber layer; 33. a glass fiber layer; 4. an electromagnetic shielding layer; 5. a fire barrier layer; 51. a chlorinated rubber base layer; 52. a polyacrylic acid resin layer; 53. a layer of perchloroethylene resin; 6. a flame retardant layer; 61. a modified polypropylene resin; 62. graphene flame retardant EPS; 63. graphene oxide nanoplatelets; 7. a nylon rope.

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, a fireproof and flame-retardant cable comprises a wire core 1, a filling layer 2 is covered on the surface of the wire core 1, an insulating layer 3 is covered on the surface of the filling layer 2, an electromagnetic shielding layer 4 is covered on the surface of the insulating layer 3, a fireproof layer 5 is covered on the surface of the electromagnetic shielding layer 4, a flame-retardant layer 6 is covered on the surface of the fireproof layer 5, the filling layer 2, the insulating layer 3, the electromagnetic shielding layer 4, the fireproof layer 5 and the flame-retardant layer 6 are bonded, the insulating layer 3 comprises an acetal varnish coating layer 31, a silicone rubber layer 32 and a glass fiber layer 33, the fireproof layer 5 comprises a chlorinated rubber base layer 51, a polyacrylic resin layer 52 and a perchloroethylene resin layer 53, the flame-retardant layer 6 comprises a modified polypropylene resin 61, a graphene flame-retardant EPS62 and a graphene oxide nanosheet 63, and is formed by the aldehyde varnish coating, The polyacrylic acid resin layer 52, the perchloroethylene resin layer 53, the modified polypropylene resin 61, the graphene flame-retardant EPS62 and the graphene oxide nanosheet 63 are arranged, so that the cable has the advantage of good fireproof and flame-retardant performance, and the problem that the traditional insulating material does not have the fireproof function basically, so that the insulating material is damaged under the condition of fire disaster, the insulating effect is lost, and safety accidents are easy to happen is solved.

In this embodiment, the surface of acetal enameled wire layer 31 and the inner wall contact of silastic layer 32, the surface of silastic layer 32 and the inner wall contact of glass fiber layer 33, acetal enameled wire layer 31, be the bonding between silastic layer 32 and the glass fiber layer 33, wherein, acetal enameled wire layer 31 has excellent high temperature resistance, ageing resistance and insulating properties, silastic layer 32 has possessed high temperature resistant low temperature, weather fastness, mechanical properties is good, the advantage that insulating nature is good and resistant oil solvent is good, glass fiber layer 33 has possessed good electrical insulation performance, and still possessed high temperature resistant, fire prevention and corrosion resistant advantage.

In this embodiment, the surface of the chlorinated rubber base layer 51 contacts with the inner wall of the polyacrylic resin layer 52, the surface of the polyacrylic resin layer 52 contacts with the inner wall of the perchloroethylene resin layer 53, and the chlorinated rubber base layer 51, the polyacrylic resin layer 52 and the perchloroethylene resin layer 53 are all bonded, wherein the chlorinated rubber base layer 51 has the characteristics of aging resistance, acid resistance, alkali resistance, non-combustibility and the like, the polyacrylic resin layer 52 has the advantages of excellent weather resistance, chemical stability, water resistance, corrosion resistance and flame retardance, and the perchloroethylene resin layer 53 has the advantages of good electrical insulation, thermoplasticity, film-forming property, chemical stability, corrosion resistance, water resistance and non-combustibility.

In the present embodiment, the surface of the modified polypropylene resin 61 is in contact with the inner wall of the graphene flame retardant EPS62, the surface of the graphene flame retardant EPS62 is in contact with the inner wall of the graphene oxide nanosheet 63, and all of the modified polypropylene resin 61, the graphene flame retardant EPS62 and the graphene oxide nanosheet 63 are bonded, wherein the graphene flame retardant EPS62 and the graphene oxide nanosheet 63 prevent oxygen from entering deep into the material due to their unique properties, and it conducts heat very well, which means that local heat is conducted to the rest of the material and dispersed, making the fire difficult to propagate, while the heat conduction and coke blockage create a so-called labyrinth effect, in which heat and combustion gases must follow a tortuous path to the fuel, and this effectively prevents the spread of the flame, in addition to the flame retardant effect, and the material also has a very high surface area, can adsorb flammable organic volatiles, and prevents its release and diffusion during combustion while reducing the generation of toxic gases in a fire.

In this embodiment, the main materials of the modified polypropylene resin 61 are polypropylene resin and basic magnesium sulfate whisker, the modified polypropylene resin 61 is formed by mixing polypropylene resin and basic magnesium sulfate whisker, the basic magnesium sulfate whisker is a novel inorganic flame-retardant and reinforced fiber material and has a single crystal structure, and compared with composite plastics, the modified polypropylene resin has obvious effects of enhancing, stiffening and flame-retarding, so that the characteristics of the polypropylene resin can be greatly improved.

In this embodiment, the inside of filling layer 2 includes nylon rope 7, and the quantity of nylon rope 7 is six, and uses sinle silk 1 to carry out equidistance annular distribution as the benchmark, and nylon rope 7's setting can greatly increase the tensile lift performance of this cable to can reduce the self weight of cable.

In the embodiment, the main material of the filling layer 2 is a ceramic low-smoke halogen-free polyolefin refractory material, the electromagnetic shielding layer 4 is formed by distributing a plurality of copper wires in a net shape, the ceramic low-smoke halogen-free polyolefin refractory material can generate a hard ceramic hard shell under the conditions of flame burning or high temperature, the hard shell is not melted and dropped, and can resist water spraying and mechanical vibration, and the ceramic low-smoke halogen-free polyolefin refractory material has a very good heat insulation effect, can ensure the smoothness of electric power and information control under the condition of fire, strives for precious time for personnel escape and fire rescue, and the electromagnetic shielding layer 4 is formed by distributing a plurality of copper wires in a net shape, so that the electromagnetic insulation effect can be realized to the maximum extent.

The working principle is as follows: the fireproof flame-retardant principle of the cable is as follows: the acetal enameled wire layer 31 has excellent high temperature resistance, ageing resistance and insulating property, the silicone rubber layer 32 has the advantages of high temperature resistance, low temperature resistance, weather resistance, good mechanical property, good insulating property and good oil resistance and solvent resistance, the glass fiber layer 33 has excellent electrical insulating property and also has the advantages of high temperature resistance, fire resistance and corrosion resistance, the chlorinated rubber base layer 51 has the characteristics of ageing resistance, acid resistance, alkali resistance, incombustibility and the like, the polyacrylic resin layer 52 has the advantages of excellent weather resistance, chemical stability, water resistance, corrosion resistance and flame resistance, the perchloroethylene resin layer 53 has the advantages of good electrical insulating property, thermoplasticity, film forming property, chemical stability, corrosion resistance, water resistance and nonflammability, the graphene flame-retardant EPS62 and graphene oxide nanosheets 63 can prevent oxygen from entering the deep part of the material due to the unique properties thereof, and it conducts heat very well, which means that local heat is conducted to the rest of the material and dispersed, making the fire difficult to spread, while heat conduction and coke blocking create so-called labyrinth effect, where heat and combustion gas must follow the tortuous path to the fuel, and this effectively prevents the spread of flame, besides flame retardant effect, and the material also has very high surface area, can adsorb inflammable organic volatile, and prevent its release and diffusion in the combustion process, and can reduce the generation of toxic gas in fire, basic magnesium sulfate whisker is a new inorganic flame retardant, reinforced fiber material, in single crystal structure, compared with composite plastic, has obvious reinforcing, stiffening, flame retardant action, thus greatly increasing the characteristics of polypropylene resin, the ceramic low smoke halogen-free polyolefin refractory material can generate hard ceramic crust under the condition of flame burning or high temperature, the hard shell is not melted and dropped, can resist water spraying and mechanical vibration, has good heat insulation and fire insulation effects, can ensure the smoothness of electric power and information control under the condition of fire, strives for precious time for escape and fire rescue of people, and the electromagnetic shielding layer 4 is formed by distributing a plurality of copper wires in a net shape, so that the electromagnetic isolation effect can be realized to the maximum extent.

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

1. A fireproof flame-retardant cable comprising a core (1), characterized in that: the surface of the wire core (1) is covered with a filling layer (2), the surface of the filling layer (2) is covered with an insulating layer (3), the surface of the insulating layer (3) is covered with an electromagnetic shielding layer (4), the surface of the electromagnetic shielding layer (4) is covered with a fireproof layer (5), the surface of the fireproof layer (5) is covered with a flame-retardant layer (6), the filling layer (2), the insulating layer (3), the electromagnetic shielding layer (4), the fireproof layer (5) and the flame-retardant layer (6) are all bonded, the insulating layer (3) comprises an acetal enameled wire layer (31), a silicon rubber layer (32) and a glass fiber layer (33), the fireproof layer (5) comprises a chlorinated rubber base layer (51), a polyacrylic acid resin layer (52) and a perchloroethylene resin layer (53), the flame-retardant layer (6) comprises a modified polypropylene resin (61), graphene flame-retardant EPS (62) and graphene oxide nanosheets (63).

2. A fire retardant cable according to claim 1, wherein: the surface of the acetal enameled wire layer (31) is in contact with the inner wall of the silicon rubber layer (32), the surface of the silicon rubber layer (32) is in contact with the inner wall of the glass fiber layer (33), and the acetal enameled wire layer (31), the silicon rubber layer (32) and the glass fiber layer (33) are all bonded.

3. A fire retardant cable according to claim 1, wherein: the surface of the chlorinated rubber base layer (51) is in contact with the inner wall of the polyacrylic resin layer (52), the surface of the polyacrylic resin layer (52) is in contact with the inner wall of the perchloroethylene resin layer (53), and the chlorinated rubber base layer (51), the polyacrylic resin layer (52) and the perchloroethylene resin layer (53) are all bonded.

4. A fire retardant cable according to claim 1, wherein: the surface of the modified polypropylene resin (61) is in contact with the inner wall of the graphene flame-retardant EPS (62), the surface of the graphene flame-retardant EPS (62) is in contact with the inner wall of the graphene oxide nanosheet (63), and the modified polypropylene resin (61), the graphene flame-retardant EPS (62) and the graphene oxide nanosheet (63) are bonded.

5. A fire retardant cable according to claim 1, wherein: the main materials of the modified polypropylene resin (61) are polypropylene resin and basic magnesium sulfate whisker, and the modified polypropylene resin (61) is formed by mixing the polypropylene resin and the basic magnesium sulfate whisker.

6. A fire retardant cable according to claim 1, wherein: the inside of filling layer (2) includes nylon rope (7), the quantity of nylon rope (7) is six, and uses sinle silk (1) to carry out equidistance annular distribution as the benchmark.

7. A fire retardant cable according to claim 1, wherein: the main material of the filling layer (2) is a ceramic low-smoke halogen-free polyolefin fire-resistant material, and the electromagnetic shielding layer (4) is formed by distributing a plurality of copper wires in a net form.