CN214203284U

CN214203284U - Composite core insulating flame-retardant overhead cable

Info

Publication number: CN214203284U
Application number: CN202023311375.XU
Authority: CN
Inventors: 孙骏; 姚祝勤; 许国中
Original assignee: JIANGSU ZHUYING SPECIAL CABLE CO Ltd
Current assignee: JIANGSU ZHUYING SPECIAL CABLE CO Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-14
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a composite core insulating flame-retardant aerial cable, which comprises a cylinder body, the number of the cylinder body is three, the outer side wall of the cylinder body is symmetrically and fixedly connected with two clapboards, the outer part of the cylinder body is sleeved with a first galvanized steel strip armor layer, the inner side wall of the first galvanized steel strip armor layer is fixedly connected with one end of the clapboard, and the inner part of the first galvanized steel strip armor layer is symmetrically provided with three copper core conductors; through the setting of multiple flame retardant coating, adopt phenolic resin combined material, the use of fire resistive material such as the low fire-retardant polyolefin cable material of steamed low cigarette, improved the fire prevention effect of this device, the heat dissipation layer adopts flexible heat conduction macromolecular material to make, can give off the heat fast to guarantee copper core conductor normal use utilizes the setting of multiple inoxidizing coating, has strengthened the wearability of this device, makes effectual separation between each copper core conductor simultaneously, avoids the electric leakage, improves the security.

Description

Composite core insulating flame-retardant overhead cable

Technical Field

The utility model relates to the technical field of cables, specifically be an insulating fire-retardant aerial [ insulated ] cable of compound core.

Background

In recent years, the demand of industries such as power plants, transformer substations, smelting, petrochemical industry and the like on cables is extremely large. The overhead insulated cable is mainly applied to urban streets and green areas, overhead lines close to buildings and rural wide areas with continuously improved requirements on power supply safety and operation management, and is particularly suitable for cities, towns and green belts with dense population. After the overhead insulated cable is used, the space and the parallel space at the cable intersection can be reduced, the laying is convenient, the flexibility is high, the occupied space corridor is reduced, the power failure times and electric shock accidents caused by line faults can be greatly reduced, and the safety and the reliability of a power grid are improved.

The existing aerial cable still needs to be improved in working and performance, such as the wear resistance, flame retardance, insulativity and the like of the cable, the existing cable is poor in wear resistance, flame retardance, insulativity and the like, so that the cable is easily damaged due to abrasion in the process of erection and use, the service life and safety of the cable are affected, the fire resistance and high temperature resistance are poor, and the cable is easily damaged quickly under the conditions of fire or high temperature to cause high-risk situations such as electric leakage and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an insulating fire-retardant aerial [ insulated ] cable of compound core 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: a composite core insulation flame-retardant aerial cable comprises a column body, wherein the number of the column body is three, two clapboards are symmetrically and fixedly connected to the outer side wall of the column body, a first galvanized steel strip armor layer is sleeved on the outer portion of the column body, the inner side wall of the first galvanized steel strip armor layer is fixedly connected with one end of each clapboard, three copper core conductors are symmetrically arranged inside the first galvanized steel strip armor layer, a first polyethylene insulation layer is fixedly connected to the outer side wall of each copper core conductor, a flame-retardant PVC protective layer is fixedly connected to the outer side wall of each first polyethylene insulation layer, a heat dissipation layer is fixedly connected to the outer side wall of each flame-retardant PVC protective layer, a second polyethylene insulation layer is bonded to the outer side wall of each first galvanized steel strip armor layer, a second galvanized steel strip armor layer is sleeved on the outer portion of each second polyethylene insulation layer, a third polyethylene insulation layer is bonded to the outer side wall of each second galvanized steel strip armor layer, and a first fireproof layer is bonded on the outer side wall of the third polyethylene insulation layer.

As further preferable in the present technical solution: the lateral wall of cylinder bonds respectively has first son to paste and first female subsides, and is three the lateral wall of cylinder bonds each other through first son and first female subsides.

As further preferable in the present technical solution: one side of the three partition plates is bonded with a second sub-sticker, one side of the other three partition plates is bonded with a second mother sticker, and one side of each adjacent two partition plates is bonded with the second mother sticker through the second sub-sticker.

As further preferable in the present technical solution: the utility model discloses a heat sink, including first galvanized steel strip armor, heat dissipation layer, one end of plate body, the inside wall of first galvanized steel strip armor with fixedly connected with rubber layer between the lateral wall of heat dissipation layer, the inside on rubber layer is equipped with six plate bodys, the one end of plate body with the inside wall fixed connection of first galvanized steel strip armor, the plate body is kept away from the one end fixed connection of first galvanized steel strip armor is adjacent one side of baffle, one side of plate body and adjacent the lateral wall of heat dissipation layer is hugged closely.

As further preferable in the present technical solution: the outer side wall of the second polyethylene insulating layer is uniformly and fixedly connected with a first ring body, the inner side wall of the second galvanized steel strip armor layer is uniformly and fixedly connected with a second ring body, and the outer side wall of the first ring body is fixedly connected with the adjacent outer side wall of the second ring body.

As further preferable in the present technical solution: the lateral wall of first flame retardant coating bonds and has the second flame retardant coating, the lateral wall of second flame retardant coating bonds and has sun-proof layer.

Compared with the prior art, the beneficial effects of the utility model are that: through the setting of multiple flame retardant coating, adopt phenolic resin combined material, the use of fire resistive material such as the low fire-retardant polyolefin cable material of steamed low cigarette, improved the fire prevention effect of this device, the heat dissipation layer adopts flexible heat conduction macromolecular material to make, can give off the heat fast to guarantee copper core conductor normal use utilizes the setting of multiple inoxidizing coating, has strengthened the wearability of this device, makes effectual separation between each copper core conductor simultaneously, avoids the electric leakage, improves the security.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the heat dissipation layer of the present invention;

FIG. 3 is a schematic structural view of the column of the present invention;

fig. 4 is a schematic side view of the present invention.

In the figure: 1. a cylinder; 2. a first sub-label; 3. a first female sticker; 4. a partition plate; 5. a second sub-label; 6. a second mother plaster; 7. a copper-core conductor; 8. a first polyethylene insulating layer; 9. a flame-retardant PVC protective layer; 10. a heat dissipation layer; 11. a plate body; 12. a first galvanized steel strip armor layer; 13. a second polyethylene insulation layer; 14. a first ring body; 15. a second ring body; 16. a second galvanized steel strip armor layer; 17. a third polyethylene insulation layer; 18. a first fire resistant layer; 19. a second fire-resistant layer; 20. a sunscreen layer; 21. a rubber layer.

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.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: a composite core insulation flame-retardant aerial cable comprises a column body 1, wherein the number of the column body 1 is three, two partition plates 4 are symmetrically and fixedly connected to the outer side wall of the column body 1, a first galvanized steel strip armor layer 12 is sleeved on the outer portion of the column body 1, the inner side wall of the first galvanized steel strip armor layer 12 is fixedly connected with one end of each partition plate 4, three copper core conductors 7 are symmetrically arranged inside the first galvanized steel strip armor layer 12, a first polyethylene insulating layer 8 is fixedly connected to the outer side wall of each copper core conductor 7, a flame-retardant PVC protective layer 9 is fixedly connected to the outer side wall of each first polyethylene insulating layer 8, a heat dissipation layer 10 is fixedly connected to the outer side wall of each flame-retardant PVC protective layer 9, a second polyethylene insulating layer 13 is bonded to the outer side wall of the first galvanized steel strip armor layer 12, a second galvanized steel strip armor layer 16 is sleeved on the outer side wall of the second polyethylene insulating layer 13, a third polyethylene insulating layer 17 is bonded to the outer side wall of the second galvanized steel strip armor layer 16, the outer side wall of the third polyethylene insulation layer 17 is adhered with a first fireproof layer 18.

In this embodiment, specifically: the outer side walls of the three cylinders 1 are respectively bonded with a first sub sticker 2 and a first mother sticker 3, and the outer side walls of the three cylinders 1 are mutually bonded through the first sub sticker 2 and the first mother sticker 3; through the arrangement of the first sub-paste 2 and the first mother paste 3, the three cylinders 1 can be conveniently separated, so that the three copper-core conductors 7 are conveniently separated.

In this embodiment, specifically: a second sub sticker 5 is bonded on one side of each of the three partition plates 4, a second mother sticker 6 is bonded on one side of the other three partition plates 4, and the adjacent sides of the two adjacent partition plates 4 are bonded through the second sub stickers 5 and the second mother stickers 6; through the arrangement of the partition boards 4 and the second sub-stickers 5, the two adjacent partition boards 4 can be conveniently separated, so that the three copper core conductors 7 are conveniently separated.

In this embodiment, specifically: a rubber layer 21 is fixedly connected between the inner side wall of the first galvanized steel strip armor layer 12 and the outer side wall of the heat dissipation layer 10, six plate bodies 11 are arranged inside the rubber layer 21, one end of each plate body 11 is fixedly connected with the inner side wall of the first galvanized steel strip armor layer 12, one end, far away from the first galvanized steel strip armor layer 12, of each plate body 11 is fixedly connected to one side of the adjacent partition plate 4, and one side of each plate body 11 is tightly attached to the outer side wall of the adjacent heat dissipation layer 10; the plate body 11 is made of flexible heat-conducting polymer materials and has a good heat dissipation effect.

In this embodiment, specifically: the outer side wall of the second polyethylene insulating layer 13 is uniformly and fixedly connected with a first ring body 14, the inner side wall of the second galvanized steel strip armor layer 16 is uniformly and fixedly connected with a second ring body 15, and the outer side wall of the first ring body 14 is fixedly connected with the outer side wall of the adjacent second ring body 15; through the setting of first ring body 14, can have the effect of support to second ring body 15, through the setting of second ring body 15, can have the effect of support to second galvanized steel strip armor 16, first ring body 14 and second ring body 15 are the rubber material, can be so that second galvanized steel strip armor 16 inwards moves, have absorbing effect, and simultaneously, the inside space of first ring body 14 and second ring body 15 helps making this device dispel the heat.

In this embodiment, specifically: the outer side wall of the first fireproof layer 18 is adhered with a second fireproof layer 19, and the outer side wall of the second fireproof layer 19 is adhered with a sun-proof layer 20; the second fireproof layer 19 is made of a phenolic resin composite material, the phenolic resin composite material is formed by combining polyolefin blended resin, a flame-retardant filler, namely aluminum hydroxide and magnesium hydroxide, a proper amount of antioxidant added for prolonging the heat-resistant life, and a smoke generation inhibitor added for reducing the smoke generation amount during combustion, has a plurality of excellent performances such as low smoke, low toxicity, flame retardance, low corrosivity and the like, and is widely applied to public places with concentrated population, such as electromechanics, subways, high-rise buildings and the like.

Working principle or structural principle, when in use, a knife or other tools are utilized to cut the sun-proof layer 20 to the second polyethylene insulating layer 13 from outside to inside, the adjacent two partition plates 4 can be conveniently separated through the arrangement of the partition plates 4 and the second subsidiary paste 5, so that the three copper core conductors 7 can be conveniently separated, the three cylinders 1 can be conveniently separated through the arrangement of the first subsidiary paste 2 and the first main paste 3, so that the three copper core conductors 7 can be conveniently separated, the first polyethylene insulating layer 8 has good insulating function, the device can avoid electric leakage, the flame-retardant PVC protective layer 9 can play a flame-retardant role, the heat dissipation layer 10 and the plate body 11 are both made of flexible heat-conducting high polymer materials, the heat dissipation effect is good, so that the copper core conductors 7 can keep good electric conductivity for a long time, and the performance reduction caused by high temperature is avoided, the cable is usually subjected to the action of radial external force in the using process, the first galvanized steel strip armor layer 12 and the second galvanized steel strip armor layer 16 are mainly used as radial mechanical protection layers of the cable and play a role in additional total shielding, the shielding effect is good, the anti-creeping effect of the device is enhanced through the arrangement of the second polyethylene insulating layer 13, the second ring body 15 can be supported through the arrangement of the first ring body 14, the second galvanized steel strip armor layer 16 can be supported through the arrangement of the second ring body 15, the first ring body 14 and the second ring body 15 are both made of rubber materials, the second galvanized steel strip armor layer 16 can move inwards, the damping effect is achieved, meanwhile, gaps inside the first ring body 14 and the second ring body 15 are beneficial to heat dissipation of the device, the first fireproof layer 18 is made of phenolic resin composite materials, phenolic resin is used as a base material, and is often mixed with reinforcing fibers: the second fireproof layer 19 is made of a phenolic resin composite material which is usually formed by combining polyolefin blend resin, flame-retardant fillers of aluminum hydroxide and magnesium hydroxide, a proper amount of antioxidant added for improving the heat-resistant service life, and smoke generation amount during combustion of the polyolefin blend resin, has a plurality of excellent performances of low smoke, low toxicity, flame retardance, small corrosivity and the like, is widely applied to public places with concentrated population such as electromechanics, subways, high-rise buildings and the like, the sun-proof layer 20 is made of ethylene-vinyl acetate copolymer of EVA resin, the content of vinyl acetate is generally 5-40%, compared with polyethylene, the EVA is introduced with a vinyl acetate monomer in a molecular chain, thereby reduced high crystallinity, improved pliability, impact resistance, filler intermiscibility and heat sealability, by wide application in fields such as foaming shoes material, functional canopy membrane, packaging film, hot melt adhesive, wire and cable and toy, had extremely strong wearability and sun-proof effect to the life of this device is prolonged.

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. The utility model provides a fire-retardant aerial [ insulated ] cable of compound core, includes cylinder (1), its characterized in that: the cylinder is characterized in that the number of the cylinders (1) is three, the outer side wall of each cylinder (1) is symmetrically and fixedly connected with two clapboards (4), the outer part of each cylinder (1) is sleeved with a first galvanized steel strip armor layer (12), the inner side wall of each first galvanized steel strip armor layer (12) is fixedly connected with one end of each clapboard (4), the inner part of each first galvanized steel strip armor layer (12) is symmetrically provided with three copper core conductors (7), the outer side wall of each copper core conductor (7) is fixedly connected with a first polyethylene insulating layer (8), the outer side wall of each first polyethylene insulating layer (8) is fixedly connected with a flame-retardant PVC protective layer (9), the outer side wall of each flame-retardant PVC protective layer (9) is fixedly connected with a heat dissipation layer (10), the outer side wall of each first galvanized steel strip armor layer (12) is bonded with a second polyethylene insulating layer (13), the outer part of each second polyethylene insulating layer (13) is sleeved with a second galvanized steel strip armor layer (16), the outer side wall of the second galvanized steel strip armor layer (16) is bonded with a third polyethylene insulating layer (17), and the outer side wall of the third polyethylene insulating layer (17) is bonded with a first fireproof layer (18).

2. The composite core insulating flame-retardant overhead cable of claim 1, wherein: the outer side wall of the cylinder (1) is respectively bonded with a first sub-sticker (2) and a first mother sticker (3), and the outer side wall of the cylinder (1) is bonded with the first mother sticker (3) through the first sub-sticker (2).

3. The composite core insulating flame-retardant overhead cable of claim 1, wherein: three one side of baffle (4) bonds and has second sub-subsides (5), and three in addition one side of baffle (4) bonds and has second mother and paste (6), two adjacent one side that baffle (4) are adjacent is pasted through second sub-subsides (5) and second mother (6).

4. The composite core insulating flame-retardant overhead cable of claim 1, wherein: the utility model discloses a heat sink, including heat dissipation layer (10), the inside wall of first galvanized steel strip armor (12) with fixedly connected with rubber layer (21) between the outside wall of heat dissipation layer (10), the inside of rubber layer (21) is equipped with six plate bodys (11), the one end of plate body (11) with the inside wall fixed connection of first galvanized steel strip armor (12), keep away from plate body (11) the one end fixed connection of first galvanized steel strip armor (12) is adjacent one side of baffle (4), one side of plate body (11) and adjacent the outside wall of heat dissipation layer (10) is hugged closely.

5. The composite core insulating flame-retardant overhead cable of claim 1, wherein: the outer side wall of the second polyethylene insulating layer (13) is uniformly and fixedly connected with a first ring body (14), the inner side wall of the second galvanized steel strip armor layer (16) is uniformly and fixedly connected with a second ring body (15), and the outer side wall of the first ring body (14) is fixedly connected with the outer side wall of the second ring body (15).

6. The composite core insulating flame-retardant overhead cable of claim 1, wherein: and a second fireproof layer (19) is adhered to the outer side wall of the first fireproof layer (18), and a sun protection layer (20) is adhered to the outer side wall of the second fireproof layer (19).