CN210110404U - High flame-retardant interlocking armored cable - Google Patents

Abstract

The utility model discloses a high flame-retardant interlocking armored cable, which comprises a cable core, wherein the cable core is formed by stranding a plurality of insulation wire cores; the clearance department of cable core pack fire-retardant rubber obturator, at the cable core outer package reinforcing fiber layer, at the outer fire-retardant glass fiber tape of outer package of reinforcement member, at fire-retardant glass fiber outband around package chlorosulfonated polyethylene anti-aging layer, at the outer crowded inorganic heat-insulating fire-retardant area of inorganic heat-insulating polyethylene anti-aging layer, set up interlocking aluminum alloy armor in inorganic heat-insulating fire-retardant outband, at interlocking aluminum alloy armor outer package silica gel glass fiber cloth, at the outer crowded package pottery silicon rubber flame retardant coating of silica gel glass fiber cloth, at the outer cladding of pottery silicon rubber flame retardant coating there is self-adhesion fire prevention band, at self-adhesion fire prevention band outer cladding high silica glass fiber sleeve pipe. The cable has the performances of environmental protection, low smoke, no toxicity, no halogen, flame retardance, high tensile property, high and low temperature resistance, ozone aging resistance, weather aging resistance and the like.

Description

High flame-retardant interlocking armored cable

Technical Field

The utility model relates to a wire and cable field specifically is a high fire-retardant interlocking armoured cable.

Background

In many places such as high-rise and super high-rise buildings, large entertainment places, large industrial and mining places, enterprises and underground engineering, cables are often densely laid, and once a fire disaster happens, the fire can be spread to other departments and floors along the cables. According to the statistics of fire departments, urban fires, wherein more than 2/3 is caused by the spread of cable burning due to the failure of electrical equipment or overload of a cable, and in many past fires, the main causes of personal life risks and secondary hazards are acid gas and toxic gas released after the cable burns. The fire-proof technology of cables is attracting more and more attention and becomes an important development direction of the cable industry.

The common aluminum core cable armor adopts double steel belt gap lapping or steel wire lapping. The problem is that the overall weight of the cable is increased, and the construction difficulty is increased. Meanwhile, gaps exist in the steel belt or steel wire wrapping, and once a fire disaster happens, the insulating layer is easy to burn; in addition, the steel belt or the steel wire is easy to corrode and rust in the air, and a layer of polymer insulating material is required to be coated outside the steel belt or the steel wire; the existing wind energy cable is low in strength, and the cable is easy to break even when the cable is pulled with high strength.

The existing common fire-resistant cable is applied to scientific and technological intensive places and personnel concentration, public places, high-rise buildings, entertainment places and numerous high-quality and high-safety hidden-risk building projects which are easy to cause crowd injury in the event of an emergency are in the event of a fire, the power supply rescue time of the common fire-resistant cable is only 40-90 minutes at most after experiments and practical application, and far reaches the power supply and signal transmission gold rescue time required by on-site rescue, so that the events of serious casualties and crowd injury are frequently caused, and immeasurable loss is brought to the lives and properties of countries and individuals.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at overcoming the not enough of prior art, provide a high fire-retardant interlocking armoured cable.

The technical scheme is as follows: in order to solve the above-mentioned object, the high flame-retardant interlocking armored cable of the present invention comprises a cable core, wherein the cable core is formed by twisting a plurality of insulated wire cores; the clearance department of cable core pack fire-retardant rubber obturator, at the cable core outer package reinforcing fiber layer, at the outer fire-retardant glass fiber tape of outer package of reinforcement member, at fire-retardant glass fiber outband around package chlorosulfonated polyethylene anti-aging layer, at the outer crowded inorganic heat-insulating fire-retardant area of inorganic heat-insulating polyethylene anti-aging layer, set up interlocking aluminum alloy armor in inorganic heat-insulating fire-retardant outband, at interlocking aluminum alloy armor outer package silica gel glass fiber cloth, at the outer crowded package pottery silicon rubber flame retardant coating of silica gel glass fiber cloth, at the outer cladding of pottery silicon rubber flame retardant coating there is self-adhesion fire prevention band, at self-adhesion fire prevention band outer cladding high silica glass fiber sleeve pipe.

The further improvement is that the insulated wire core is formed by sequentially coating a nano environment-friendly fireproof mineral insulating layer with the thickness of 1.5-2 mm, a stripped semiconductive insulating shielding layer and basalt fiber cloth with the thickness of 2.4-2.5 mm outside the semiconductive insulating shielding layer on an aluminum alloy conductor at the center.

In a further improvement, the reinforced fiber layer is formed by mutually weaving nylon fiber yarns and nylon fiber yarns.

The interlocking aluminum alloy armor layer is a closed interlocking lock catch structure formed by rolling a plurality of aluminum alloy material strips through a die and then wrapping the aluminum alloy material strips.

In a further improvement, the aluminum alloy material strip comprises an arched part, a straight part and a folded part which are connected in sequence; the folded part of any aluminum alloy material strip is mutually buckled with the arched part of the adjacent aluminum alloy material strip.

Further improved, the thickness of the flame-retardant glass fiber belt is 1mm-2 mm.

Further improved, the thickness of the silica gel glass fiber cloth is 2.3mm-3 mm.

Further improved, the thickness of the inorganic heat-insulating flame-retardant belt is 1.2mm-1.3 mm.

Has the advantages that:

compared with the prior art, the armored cable can completely ensure the high building requirements on fire control, and during fire, the environment-friendly cable is not easy to burn and can prevent flame from spreading and disaster from expanding after burning; the environment-friendly cable has good electrical property and physical and mechanical properties by adopting the environment-friendly insulating layer, the sheath and the specially-made oxygen-isolating layer material, ensures that the product does not contain halogen, solves the problem of secondary pollution formed during combustion of the cable, and avoids carcinogenic dioxin substances generated during the combustion of the traditional PVC wire; the cable has the performances of environmental protection, low smoke, no toxicity, no halogen, flame retardance, high tensile property, high and low temperature resistance, ozone aging resistance, weather aging resistance and the like.

Drawings

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

fig. 2 is a schematic structural view of the interlocking aluminum alloy armor layer of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the high flame retardant interlocking armored cable of the present invention comprises a cable core, wherein the cable core is formed by twisting a plurality of insulated wire cores; the insulated wire core is composed of a central aluminum alloy conductor 1, a nano environment-friendly fireproof mineral insulating layer 2 with the thickness of 1.5mm-2mm, a semiconductive insulating shielding layer 3 capable of being extruded and stripped, and basalt fiber cloth 4 with the thickness of 2.4mm-2.5mm, wherein the nano environment-friendly fireproof mineral insulating layer 2, the semiconductive insulating shielding layer and the basalt fiber cloth are sequentially coated outside the aluminum alloy conductor; the insulated wire core adopts a flame-retardant structure of a nano environment-friendly fireproof mineral insulating layer, can overload by 2.5 times under rated voltage and plays an insulating role as usual; the long-term working temperature range is as follows: -40 to 1200 degrees celsius, insulated as usual; under the ablation of open fire at 800-1200 ℃, short circuit, electric fire and combustion supporting are avoided within 1.5 hours; in the open fire ablation process, the flame-retardant glass fiber is not only flame-retardant and flameless, but also no longer emits suffocation toxic gas, and has the characteristics of low smoke, no toxicity, no halogen and flame retardance; when the device bears mechanical external force, the device resists electromagnetic interference; the cost is low, and the performance index is good; insulating layers suitable for use in various wires and cables; the basalt fiber cloth has high strength and permanent flame retardance, can resist temperature of over 1000 ℃ in a short period, can be used in a 760 ℃ temperature environment for a long time, ensures that the wire core has good flame retardance, and greatly strengthens that the wire core keeps normal work in a fire disaster;

the gaps of the cable core are filled with the flame-retardant rubber filling bodies 5, so that the flame retardance of the cable core is also ensured; the cable core is wrapped with the reinforcing fiber layer 6, the reinforcing fiber layer is formed by weaving nylon fiber yarns and nylon fiber yarns, and a traditional reinforcing structure of a steel core and a reinforcing core is replaced, so that the cable is lighter, softer, high in tensile strength and not easy to break;

the flame-retardant glass fiber tape 7 with the thickness of 1mm-2mm is wound outside the reinforcing component, and the chlorosulfonated polyethylene anti-aging layer 8 is wound outside the flame-retardant glass fiber tape to prevent the cable from aging; an inorganic heat-insulating flame-retardant belt 9 with the thickness of 1.2mm-1.3mm is extruded outside a chlorosulfonated polyethylene anti-aging layer, an interlocking aluminum alloy armor layer 10 is arranged outside the inorganic heat-insulating flame-retardant belt, silica gel glass fiber cloth 11 with the thickness of 2.3mm-3mm is wrapped outside the interlocking aluminum alloy armor layer, and a ceramic silicon rubber fireproof layer 12 is extruded outside the silica gel glass fiber cloth, so that the cable has the basic characteristic of good elasticity of silicon rubber at normal temperature, has the advantages of no toxicity, no odor, high and low temperature resistance, ozone aging resistance, weather aging resistance and excellent electrical insulation performance, also has good processing performance of common high-temperature silicon rubber, and can keep the state of a flexible cable from minus 40 ℃ to minus 200 ℃; when flame attacks and the temperature reaches more than 300 ℃, the original soft state can be converted into a hard sponge ceramic body, and cavities are generated inside the fireproof protection layer 3 after the hard sponge ceramic body is hardened, so that heat preservation is facilitated, the sponge ceramic body has the remarkable effects of fire resistance and high temperature resistance, and the internal structure of the cable is effectively protected from mechanical change and electrical property change; the self-adhesive fireproof wrapping tape 13 is coated outside the ceramic silicon rubber fireproof layer, and a multi-layer flame-retardant fireproof structure is arranged from inside to outside, so that the high flame-retardant fireproof performance of the cable is greatly guaranteed; finally, the self-adhesive fireproof wrapping tape is wrapped with a high silica glass fiber sleeve 14 which is woven by alkali-free glass fiber yarns, coated with organic high-temperature-resistant silicone resin and subjected to high-temperature treatment, and has the performances of flame retardance, heat insulation, heat preservation, electricity resistance, softness and the like; the high silica sleeve can maintain the flexibility at minus 54 ℃, can continuously work at 260 ℃, provides reliable protection at 550 ℃, prevents heat waves, and can resist the impact of high-temperature molten steel less than or equal to 1100 ℃ in a short time.

As shown in fig. 2, the interlocking aluminum alloy armor layer 10 is formed by rolling a plurality of aluminum alloy material strips through a die and then wrapping the aluminum alloy material strips to form a closed interlocking lock catch structure; the aluminum alloy material strip comprises an arched part 15, a straight part 16 and a folded part 17 which are connected in sequence; the folded part of any aluminum alloy material strip is mutually buckled with the arched part of the adjacent aluminum alloy material strip; can rotate in a certain range, is beneficial to the bending of the cable, is convenient for construction, and can greatly improve the tensile strength of the cable.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims (8)

1. A high flame retardant interlocking armored cable, characterized in that: the cable comprises a cable core, wherein the cable core is formed by stranding a plurality of insulating wire cores; the clearance department of cable core pack fire-retardant rubber obturator, at the cable core outer package reinforcing fiber layer, at the outer fire-retardant glass fiber tape of outer package of reinforcement member, at fire-retardant glass fiber outband around package chlorosulfonated polyethylene anti-aging layer, at the outer crowded inorganic heat-insulating fire-retardant area of inorganic heat-insulating polyethylene anti-aging layer, set up interlocking aluminum alloy armor in inorganic heat-insulating fire-retardant outband, at interlocking aluminum alloy armor outer package silica gel glass fiber cloth, at the outer crowded package pottery silicon rubber flame retardant coating of silica gel glass fiber cloth, at the outer cladding of pottery silicon rubber flame retardant coating there is self-adhesion fire prevention band, at self-adhesion fire prevention band outer cladding high silica glass fiber sleeve pipe.

2. The high flame retardant interlocking armored cable of claim 1, wherein: the insulated wire core is formed by sequentially coating a nano environment-friendly fireproof mineral insulating layer with the thickness of 1.5-2 mm, a semiconductive insulating shielding layer capable of being extruded and coated and basalt fiber cloth with the thickness of 2.4-2.5 mm outside the semiconductive insulating shielding layer on the aluminum alloy conductor at the center.

3. The high flame retardant interlocking armored cable of claim 1, wherein: the reinforced fiber layer is formed by weaving nylon fiber yarns and polyamide fiber yarns.

4. The high flame retardant interlocking armored cable of claim 1, wherein: the interlocking aluminum alloy armor layer is formed by winding a plurality of aluminum alloy material strips after being rolled by a die to form a closed interlocking lock catch structure.

5. The high flame retardant interlocking armored cable of claim 4, wherein: the aluminum alloy material strip comprises an arched part, a straight part and a folded part which are connected in sequence; the folded part of any aluminum alloy material strip is mutually buckled with the arched part of the adjacent aluminum alloy material strip.

6. The high flame retardant interlocking armored cable of claim 1, wherein: the thickness of the flame-retardant glass fiber tape is 1mm-2 mm.

7. The high flame retardant interlocking armored cable of claim 1, wherein: the thickness of the silica gel glass fiber cloth is 2.3mm-3 mm.

8. The high flame retardant interlocking armored cable of claim 1, wherein: the thickness of the inorganic heat-insulating flame-retardant belt is 1.2mm-1.3 mm.