CN214043115U

CN214043115U - Energy-saving strong-conductivity novel copper alloy fireproof wire cable

Info

Publication number: CN214043115U
Application number: CN202022994321.1U
Authority: CN
Inventors: 柳汇文; 马建强; 徐盈娟
Original assignee: Zhejiang Chuangyuan New Material Co ltd
Current assignee: Zhejiang Chuangyuan New Material Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-08-24
Anticipated expiration: 2030-12-14

Abstract

The utility model relates to a novel copper alloy fireproof electric wire and cable is electrically conducted by energy-conservation. At present, wire and cable products produced in China have large copper consumption and low flame retardant property, and release hydrogen chloride gas and halogen harmful substances when being burnt by flame in fire. The utility model discloses its characterized in that includes a plurality of conductive core, conductive core's outside sets up high silica fiber area, the outside in high silica fiber area sets gradually fire-retardant polyester film layer, plastic-aluminum composite strip layer, metallic shield layer and fire-retardant silastic-layer. The utility model discloses reduce the copper consumption volume of wire and cable product, improve its fire-retardant and fire behavior, prevent the fire incident emergence that wire and cable triggered.

Description

Energy-saving strong-conductivity novel copper alloy fireproof wire cable

Technical Field

The utility model relates to a novel copper alloy fireproof electric wire and cable is electrically conducted by energy-conservation.

Background

The electric wire and the cable are necessary electric equipment for transmitting electric energy, are the only line of electric energy flow direction, and are widely applied to various fields of petroleum, chemical industry, metallurgy, power generation, ships, railways, tunnels, aerospace, buildings, mines, houses, hospitals, schools and the like. The fields have high requirements on various indexes of wires and cables, such as chemical corrosion resistance, cold resistance, high temperature resistance, good insulating property, good mechanical property, ageing resistance, softness, halogen-free, low-smoke, flame retardance, good conductive property, energy conservation and low consumption, and more importantly, the characteristics of safety and environmental protection are guaranteed.

The conductor materials that have been used conventionally in wire and cable products are copper and aluminum, with copper conductors being used in amounts greater than 80% of the total wire and cable product. Besides, other industrial production copper accounts for more than 90% of the total national copper. Along with the rapid development of economic construction in China, copper for industrial production is increased year by year, China is deficient in copper resources, and simultaneously, China solves the problem that the demand for copper is over 80 percent of the copper utilization of a large country by import, so that energy conservation and consumption reduction have attracted attention of the whole society.

According to the statistics of China Cable industry Association, the total sale amount of electric wire and cable products in the whole country in 2019 is 14000 million, the copper consumption per 1 million electric wire and cable products is about 450 tons, the copper consumption of electric wire and cable enterprises in the whole country in the last year is 630 trillion tons, and if the copper alloy conductor material is used for 284.56 trillion tons, the copper consumption is directly reduced by 54.83%. Can save precious copper resources for the country greatly.

The wire and cable products produced in China at present have large copper consumption and deficient copper resources, have great risk depending on imported copper, have poor performance and low flame retardant property of common aluminum conductor wires and cables, release hydrogen chloride gas and halogen harmful substances when being burnt by flame in a fire disaster, cause 'secondary disaster' to victims in the fire disaster, and cannot maintain effective electric energy transmission in the fire disaster. If the aluminum conductor is adopted, the ageing resistance of the wire and cable conductor is poor, and the overload resistance of the line is weak, the overload short circuit of the line can cause the fire caused by the line combustion caused by the ground short circuit.

SUMMERY OF THE UTILITY MODEL

The utility model discloses shortcoming to prior art exists provides an energy-conserving electrically conductive novel copper alloy fire prevention wire and cable by force, reduces the copper consumption volume of wire and cable product, improves its fire-retardant and fire behavior, prevents the fire incident emergence that wire and cable caused.

Therefore, the utility model adopts the following technical proposal: the utility model provides a novel copper alloy fire prevention wire and cable of energy-conserving strong electrically conductive which characterized in that includes a plurality of copper alloy conductive core, conductive core's outside sets up high silica fiber area, the outside in high silica fiber area sets gradually fire-retardant polyester film layer, plastic-aluminum composite strip layer, metallic shield layer and fire-retardant silicone rubber layer.

The conductive wire core sequentially comprises a copper alloy conductor, a phlogopite fireproof layer, a polyolefin insulating layer and a fireproof quartz fiber belt layer from inside to outside.

The conductive wire core is positioned outside the fireproof quartz fiber belt layer and is also provided with a fireproof glass fiber belt layer.

The copper alloy conductor comprises a central aluminum alloy rod, the outer portion of the aluminum alloy rod is coated with a copper pipe, the aluminum alloy rod and the copper pipe are tightly combined together to form a wire blank, and then the wire blank is drawn to form the copper alloy conductor.

And a polyolefin sheath layer is arranged outside the low-smoke halogen-free flame-retardant silicone rubber layer.

The beneficial effects of the utility model reside in that:

1. the copper consumption of the wire and cable product is reduced, the precious copper resource of the country is protected, and the risk of relying on imported copper is reduced.

2. The cable solves the problem that hydrogen chloride gas and halogen harmful substances are released when the common aluminum conductor wire and cable are burnt by flame in a fire disaster, eliminates the hydrogen chloride gas and the halogen harmful substances, and does not cause secondary disaster to victims in the fire disaster when the fire disaster happens.

3. The smoke released when the common aluminum conductor wire cable is burnt by flame in a fire is solved, and the visibility of victims in the fire is improved.

4. The problem of the ordinary aluminium conductor wire and cable delay burning by oneself in the conflagration is solved, improve its fire-retardant and fire behavior, prevent that the fire accident that wire and cable triggered from taking place.

5. The problem of ordinary aluminium conductor wire and cable current-carrying capacity low, the compliance is poor can cause to ground short circuit initiation circuit burning when short circuit transships and lead to the conflagration is solved, the loss resistance of wire and cable self is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

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

The energy-saving strong-conductivity novel copper alloy fireproof electric wire and cable shown in fig. 1 comprises a plurality of conductive wire cores, wherein a high silica fiber band 6 is arranged outside the conductive wire cores, and a flame-retardant polyester film layer 7, an aluminum-plastic composite band layer 8, a metal shielding layer 9 and a flame-retardant silicone rubber layer 10 are sequentially arranged outside the high silica fiber band.

The conductive wire core sequentially comprises a copper alloy conductor 1, a phlogopite fireproof layer 2, a polyolefin insulating layer 3 and a fireproof quartz fiber belt layer 4 from inside to outside. And the conductive wire core is positioned outside the fireproof quartz fiber belt layer and is also provided with a fireproof glass fiber belt layer 5. The copper alloy conductor comprises a central aluminum alloy rod, the outer portion of the aluminum alloy rod is coated with a copper pipe, the aluminum alloy rod and the copper pipe are tightly combined together to form a wire blank, and then the wire blank is drawn to form the copper alloy conductor. And a polyolefin sheath layer 11 is arranged outside the low-smoke halogen-free flame-retardant silicone rubber layer.

The utility model discloses wash diameter 9.5mm or 6 mm's electrician aluminum alloy pole through the deoiling and dry with the passivation, wash and dry processing with the deoiling of the pure copper strip deoiling of thickness 0.7mm again. The copper strip is guided by a special sizing wheel to gradually form a round tube shape and is wrapped around an electric aluminum alloy rod which is subjected to deoiling cleaning and passivation drying, argon arc welding is adopted to continuously weld a longitudinal seam of the copper strip forming the round tube shape under the dragging of a tractor, and the copper strip and the aluminum alloy rod are tightly combined together under the pressing of a pressing wheel to form a wire blank. Finally, the copper alloy conductor is formed into various specifications of copper alloy conductors required by the wires and cables through drawing.

The utility model discloses a design of high fire-retardant fire prevention function, be in the product structure on adopting fire prevention aureola layer to cover the copper alloy conductor, then cover halogen-free low fire-retardant pottery porcelain ization polyolefin insulating layer of cigarette and high temperature resistant fire-retardant fire prevention quartz cloth and high temperature resistant fire-retardant high silica fiber layer, make high fire-retardant fire behavior, insulating properties, anti-overload capacity, ageing resistance is more outstanding, the fire prevention aureola that the product used, high temperature resistant fire-retardant fire prevention quartz cloth and high temperature resistant fire-retardant high silica fiber material, and is not only nontoxic tasteless, and good physical mechanical properties and good chemical resistance ability and good technology processing nature have. Under the high temperature of more than 1200 ℃ and flame ablation, the high-temperature-resistant flame-retardant fireproof quartz cloth, the high-temperature-resistant flame-retardant high-silica fiber material and the halogen-free low-smoke flame-retardant ceramic polyolefin insulation component can be ablated and converted into hard solidified substances in a short time, a good heat insulation layer is formed on the surface of a conductor of a wire and cable to prevent the flame from continuing to burn, the higher the ablation time is, the higher the temperature is, the more obvious the hard effect of the solidified substances is, the wire and cable can still normally convey electric energy when being placed on the flame, hydrogen halide harmful gas and smoke are not generated during burning, the visibility of a fire scene is improved, the time is effectively won for rescuing the fire, and meanwhile, the escape opportunity is created for victims in the fire.

The solidified substance burned at high temperature can reach a fire-resistant environment of 1200 ℃, so that the cable still keeps a normal operation state in the combustion environment. And no ash residue is left after the material is burnt. The purposes of good fire-fighting and fire-proof functions, safety and environmental protection are really achieved. The aluminum-plastic composite belt and the metal shielding layer inside the product structure play roles in resisting interference and moisture, and the halogen-free low-smoke flame-retardant silicon rubber has softness and elasticity and is used as a protective layer of an internal insulator so that the silicon rubber is not damaged by external force and has a flame-retardant effect.

The outermost layer of the product adopts a halogen-free low-smoke flame-retardant ceramic crosslinked polyolefin sheath layer, the material irradiates the sheath layer by utilizing high-energy electron beam of an electron irradiation accelerator, so that the halogen-free low-smoke flame-retardant ceramic crosslinked polyolefin sheath is changed into a three-dimensional network structure from a linear molecular structure, a three-dimensional lattice smaller than water molecules is formed, and a compact layer is formed on the surface and inside of the halogen-free low-smoke flame-retardant ceramic crosslinked polyolefin sheath layer, thereby effectively preventing the combination of hydroxide and the water molecules, the crosslinking mode not only improves the temperature resistance, wear resistance and flame retardant property of the electric wire and cable, but also mainly improves the flame retardance and electric property of the cable. The cable has the characteristics of low smoke, no halogen, flame retardance, fire resistance, high temperature resistance and the like. The specific properties are as follows: the temperature resistance grade is high: the conductor allows the working temperature to be 125 ℃ (70 ℃ or 90 ℃ for a common cable) for a long time; the flame retardant property is good: the bundled burn test was class a. (common cables are class C); the cable has no smoke gas and toxic gas, the light transmittance is more than or equal to 90 percent, and the PH value is more than or equal to 6.0 (the light transmittance of the common low-smoke halogen-free cable is more than or equal to 60 percent, and the PH value is more than or equal to 4.3); the mechanical property is excellent. The wear-resisting times are 16 ten thousand, and the service life is as long as 75 years.

The utility model discloses it is huge to reduce the copper consumption volume, and fail safe nature is guaranteed. While enterprises are actively promoting the project, it is increasingly necessary that governments actively promote and guide, and that industry regulations and policy guidance are becoming unified. The product is suitable for places with high requirements on halogen free, low smoke, flame retardance, safety and environmental protection. Such as high-rise buildings, stations, subways, airports, hospitals, large libraries, stadiums, villas, residential homes, hotels, hospitals, office buildings, schools, shopping malls, amusement parks and other crowded places.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a novel copper alloy fire prevention wire and cable of energy-conserving strong electrically conductive which characterized in that includes a plurality of copper alloy conductive core, conductive core's outside sets up high silica fiber area, the outside in high silica fiber area sets gradually fire-retardant polyester film layer, plastic-aluminum composite strip layer, metallic shield layer and fire-retardant silicone rubber layer.

2. The energy-saving strong-conductive novel copper alloy fireproof electric wire and cable as claimed in claim 1, wherein the conductive wire core comprises a copper alloy conductor, a phlogopite fireproof layer, a polyolefin insulating layer and a fireproof quartz fiber belt layer in sequence from inside to outside.

3. The energy-saving strong-conductive novel copper alloy fireproof electric wire and cable as claimed in claim 2, wherein the conductive wire core is located outside the fireproof quartz fiber belt layer and is further provided with a fireproof glass fiber belt layer.

4. The energy-saving strong-conductive novel copper alloy fireproof electric wire and cable as claimed in claim 3, wherein the copper alloy conductor comprises a central aluminum alloy rod, the aluminum alloy rod is coated with a copper pipe, the aluminum alloy rod and the copper pipe are tightly combined together to form a wire blank, and then the wire blank is drawn to form the copper alloy conductor.

5. The energy-saving strong-conductivity novel copper alloy fireproof electric wire and cable as claimed in claim 4, characterized in that a polyolefin sheath layer is arranged outside the flame-retardant silicone rubber layer.