CN215577857U

CN215577857U - Low-smoke halogen-free high-flame-retardant fire-resistant environment-friendly cable

Info

Publication number: CN215577857U
Application number: CN202121192842.3U
Authority: CN
Inventors: 吴俊生; 赵泽伟; 李名玉; 曹园; 胡超; 邓勇军; 胡琴; 童广道
Original assignee: Anhui Huaxing Cable Group Co Ltd
Current assignee: Anhui Huaxing Cable Group Co Ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-01-18
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a low-smoke halogen-free high-flame-retardant fire-resistant environment-friendly cable, which has the technical scheme key points that: the anti-torsion cable is fixedly arranged at the central position of the isolating ring, the isolating ring is provided with a plurality of isolating chambers, and the conductors and the flame retardant are fixedly arranged in the isolating chambers; the extexine wraps the isolating ring, the internal part of the extexine is fixedly provided with the anti-torsion wires, the anti-torsion wires and the isolating ring are both made of nylon materials, and the extexine is made of crosslinked polyethylene materials.

Description

Low-smoke halogen-free high-flame-retardant fire-resistant environment-friendly cable

Technical Field

The utility model relates to the technical field of environment-friendly cables, in particular to a low-smoke halogen-free high-flame-retardant fire-resistant environment-friendly cable.

Background

With the rapid development of urban construction, the requirements on electrical equipment are increasingly strict as high-rise buildings are higher, and electric wires and cables are generally used for conveying electric energy and various information signal resources for all directions of economic construction like human blood vessels. However, in recent years, the number of fires caused by electricity has increased, and the fires caused by wires and cables account for a considerable proportion of the number of fires, so that fire resistance and fire resistance are important indicators of cable performance, and how to improve the fire resistance and fire resistance of cables is particularly important

Referring to the current Chinese patent with publication number CN204667968U, the utility model discloses an environment-friendly low-smoke halogen-free flame-retardant cable, belonging to the technical field of power cables. The cable comprises cable conductors, wherein an insulating layer is arranged on the periphery of each cable conductor, three or more cable conductors with the insulating layers are twisted into a cable bundle, a flame-retardant filling layer, a coating layer and a sheath layer are sequentially arranged outside the cable bundle from inside to outside, and an environment-friendly high-temperature flame-retardant filling rope is filled in the flame-retardant filling layer.

Although the cable has certain flame-retardant and environment-friendly effects, the cable has the defects of low strength and bending resistance, and the conductors are relatively close to each other, so that the fire is increased once the cable is burnt.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems mentioned in the background art, the utility model aims to provide a low-smoke halogen-free high-flame-retardant fire-resistant environment-friendly cable to solve the problems of bending intolerance and short distance between conductors mentioned in the background art.

The technical purpose of the utility model is realized by the following technical scheme:

a low-smoke halogen-free high-flame-retardant fire-resistant environment-friendly cable comprises a torsion-resistant wire, a conductor, an isolating ring, a flame retardant and an outer surface layer, wherein the torsion-resistant wire is fixedly arranged at the central position of the isolating ring, the isolating ring is provided with a plurality of isolating chambers, and the conductor and the flame retardant are fixedly arranged in the isolating chambers; the outer surface layer is wrapped on the isolating ring, torsion-resistant wires are fixedly arranged inside the outer surface layer, the torsion-resistant wires and the isolating ring are both made of nylon materials, and the outer surface layer is made of crosslinked polyethylene materials; the isolating chamber is arranged in the isolating ring, and the conductor and the flame retardant machine are both arranged in the isolating chamber, so that the cable can be effectively prevented from being burnt integrally after being ignited, the conductors are all arranged separately, and the integrity of the conductors is protected as much as possible; the outer surface layer is made of cross-linked polyethylene; the nylon is insulating, has high mechanical strength, good toughness, higher tensile strength and compressive strength, good corrosion resistance and mildew resistance, and long service life, and only generates partial ammonia gas after being combusted, so that the nylon is almost harmless to the environment; the crosslinked polyethylene can not be decomposed and carbonized below 200 ℃, the long-term working temperature can reach 90 ℃, and the thermal life can reach 40 years; the hardness, rigidity, wear resistance and impact resistance are all strong; has stronger acid and alkali resistance and oil resistance, and the combustion products are mainly water and carbon dioxide, thus having less harm to the environment.

Furthermore, a shielding layer and an armor layer are clamped between the isolation chamber and the outer surface layer.

Through adopting above-mentioned technical scheme, the product quality and the durability can promote the cable body greatly by shielding layer and armor.

Furthermore, the shielding layer is made of aluminum foil.

By adopting the technical scheme, the aluminum foil is mainly used for shielding high-frequency electromagnetic waves and preventing the high-frequency electromagnetic waves from contacting with the conductor to generate induced current.

Furthermore, the material of armor layer is the steel band armor.

By adopting the technical scheme, compared with other forms of protective layers, the steel tape armor has better protective performance and greatly improves the flame retardant effect; and the cable is high temperature resistant, impact resistant, insect-proof and the like, and can protect the cable, strengthen the strength of the cable and prolong the service life of the cable.

Furthermore, the torsion resistant wire is made of copper.

Through adopting above-mentioned technical scheme, the heat conductivity of copper is higher, and the ductility is stronger, can also compromise heat conduction radiating effect in antitorque, is the preferred selection of antitorque line.

Furthermore, the conductor is made of oxygen-free copper.

By adopting the technical scheme, the oxygen-free copper has high conductivity, good processing performance, welding performance, corrosion resistance and low-temperature performance, and can improve the overall performance of the conductor.

In summary, the utility model mainly has the following beneficial effects:

1. the utility model discloses a, improve traditional environment-friendly cable, through setting up the spacer ring to be provided with the isolation chamber in the spacer ring, all set up the conductor in the isolation chamber with hindering the combustion engine, such setting can effectually avoid the cable wholly to burn after being ignited, with the equal separation setting of conductor, protects conductor integrality as far as possible.

2. The utility model improves the traditional environment-friendly cable, the conductor and the torsion resistant wire are made of nylon as raw materials, and the outer surface layer is made of cross-linked polyethylene; the nylon is insulating, has high mechanical strength, good toughness, higher tensile strength and compressive strength, good corrosion resistance and mildew resistance, and long service life, and only generates partial ammonia gas after being combusted, so that the nylon is almost harmless to the environment; the crosslinked polyethylene can not be decomposed and carbonized below 200 ℃, the long-term working temperature can reach 90 ℃, and the thermal life can reach 40 years; the hardness, rigidity, wear resistance and impact resistance are all strong; has stronger acid and alkali resistance and oil resistance, and the combustion products are mainly water and carbon dioxide, thus having less harm to the environment.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

fig. 1 is a front view of the present invention.

In the figure: 1. a torsion resistant wire; 2. a conductor; 3. an isolating ring; 4. a flame retardant; 5. an outer skin layer; 6. an isolation chamber; 7. anti-torsion wires; 8. a shielding layer; 9. an armor layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1, a low-smoke halogen-free high-flame-retardant fire-resistant environment-friendly cable includes a torsion-resistant wire 1, a conductor 2, an isolation ring 3, a flame retardant 4 and an outer surface layer 5, wherein the torsion-resistant wire 1 is fixedly disposed at a central position of the isolation ring 3, the isolation ring 3 is provided with a plurality of isolation chambers 6, and the conductor 2 and the flame retardant 4 are fixedly disposed in the isolation chambers 6; the outer surface layer 5 is wrapped on the isolation ring 3, the anti-torsion wires 7 are fixedly arranged inside the outer surface layer 5, the anti-torsion wires 7 and the isolation ring 3 are both made of nylon materials, and the outer surface layer 5 is made of cross-linked polyethylene materials; an isolation chamber 6 is arranged in the isolation ring 3, and the conductor 2 and the flame retardant machine are both arranged in the isolation chamber 6, so that the cable can be effectively prevented from being burnt integrally after being ignited, the conductors 2 are arranged separately, and the integrity of the conductors 2 is protected as much as possible; the outer surface layer 5 is made of cross-linked polyethylene; the nylon is insulating, has high mechanical strength, good toughness, higher tensile strength and compressive strength, good corrosion resistance and mildew resistance, and long service life, and only generates partial ammonia gas after being combusted, so that the nylon is almost harmless to the environment; the crosslinked polyethylene can not be decomposed and carbonized below 200 ℃, the long-term working temperature can reach 90 ℃, and the thermal life can reach 40 years; the hardness, rigidity, wear resistance and impact resistance are all strong; has stronger acid and alkali resistance and oil resistance, and the combustion products are mainly water and carbon dioxide, thus having less harm to the environment.

Referring to fig. 1, the torsion resistant wire 1 is made of copper, which has high thermal conductivity and strong ductility, and can resist torsion while having heat conduction and heat dissipation effects, and is a preferred choice for the torsion resistant wire 1.

Referring to fig. 1, a shielding layer 8 and an armor layer 9 are sandwiched between the isolation chamber 6 and the outer surface layer 5, and the shielding layer 8 and the armor layer 9 can greatly improve the product quality and the durability of the cable body.

Referring to fig. 1, the shielding layer 8 is made of aluminum foil, which is mainly used for shielding high frequency electromagnetic waves and preventing the high frequency electromagnetic waves from contacting the conductor 2 to generate induced current.

Referring to fig. 1, the material of the armor layer 9 is steel tape armoring, and compared with other forms of protective layers, the steel tape armoring has better protection performance, so that the flame retardant effect is greatly improved; and the cable is high temperature resistant, impact resistant, insect-proof and the like, and can protect the cable, strengthen the strength of the cable and prolong the service life of the cable.

Referring to fig. 1, the conductor 2 is made of oxygen-free copper, the oxygen-free copper has high conductivity and good processability, welding performance, corrosion resistance and low-temperature performance, and the overall performance of the conductor 2 can be improved.

When the flame-retardant cable is used, the isolating ring 3 is arranged, the isolating chamber 6 is arranged in the isolating ring 3, and the conductor 2 and the flame retardant are both arranged in the isolating chamber 6, so that the cable can be effectively prevented from being burnt integrally after being ignited, the conductors 2 are arranged separately, and the integrity of the conductor 2 is protected as much as possible; the conductor 2 and the torsion resistant wire 7 are made of nylon, and the outer surface layer 5 is made of cross-linked polyethylene; the nylon is insulating, has high mechanical strength, good toughness, higher tensile strength and compressive strength, good corrosion resistance and mildew resistance, and long service life, and only generates partial ammonia gas after being combusted, so that the nylon is almost harmless to the environment; the crosslinked polyethylene can not be decomposed and carbonized below 200 ℃, the long-term working temperature can reach 90 ℃, and the thermal life can reach 40 years; the hardness, rigidity, wear resistance and impact resistance are all strong; has stronger acid and alkali resistance and oil resistance, and the combustion products are mainly water and carbon dioxide, thus having less harm to the environment.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a low smoke and zero halogen high fire-retardant fire-resistant environment-friendly cable, includes antitorque commentaries on classics line (1), conductor (2), spacer ring (3), fire retardant (4) and extexine (5), its characterized in that: the torsion resistant wire (1) is fixedly arranged at the center of the isolation ring (3), the isolation ring (3) is provided with a plurality of isolation chambers (6), and the conductor (2) and the flame retardant (4) are fixedly arranged in the isolation chambers (6); the outer surface layer (5) is wrapped on the isolating ring (3), anti-torsion wires (7) are fixedly arranged inside the outer surface layer (5), the anti-torsion wires (7) and the isolating ring (3) are made of nylon materials, and the outer surface layer (5) is made of cross-linked polyethylene.

2. The low-smoke halogen-free high-flame-retardant fire-resistant environment-friendly cable according to claim 1, characterized in that: and a shielding layer (8) and an armor layer (9) are clamped between the isolation chamber (6) and the outer surface layer (5).

3. The low-smoke halogen-free high-flame-retardant fire-resistant environment-friendly cable according to claim 2, characterized in that: the shielding layer (8) is made of aluminum foil.

4. The low-smoke halogen-free high-flame-retardant fire-resistant environment-friendly cable according to claim 2, characterized in that: the armor layer (9) is made of steel tape armor.

5. The low-smoke halogen-free high-flame-retardant fire-resistant environment-friendly cable according to claim 1, characterized in that: the torsion resistant wire (1) is made of copper.

6. The low-smoke halogen-free high-flame-retardant fire-resistant environment-friendly cable according to claim 1, characterized in that: the conductor (2) is made of oxygen-free copper.