CN215298933U

CN215298933U - Power cable with excellent cold resistance and high temperature resistance

Info

Publication number: CN215298933U
Application number: CN202121300885.9U
Authority: CN
Inventors: 朱国林; 李永坤; 高艳卿
Original assignee: Jiangsu Guoning Cable Co ltd
Current assignee: Jiangsu Guoning Cable Co ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-12-24
Anticipated expiration: 2031-06-10

Abstract

The utility model discloses a power cable with excellent cold resistance and high temperature resistance, which comprises a conductive chip, wherein the outer side of the conductive chip is provided with an inner protective layer, the outer side of the inner protective layer is provided with an insulating layer, the outer side of the insulating layer is provided with a heat preservation layer, the outer side of the heat preservation layer is provided with an asbestos filling layer, the outer side of the asbestos filling layer is provided with a flame-retardant layer, the outer side of the flame-retardant layer is provided with a silastic layer, the outer side of the silastic layer is provided with a cold-resistant rubber layer, the outer side of the cold-resistant rubber layer is provided with an aluminum foil layer, and the outer side of the aluminum foil layer is provided with an outer protective layer; the cold resistance and the high temperature resistance of the power cable are improved, the conductive chip is prevented from being extruded, the device is high in practicability and simple in structure, and the service life of the power cable is prolonged.

Description

Power cable with excellent cold resistance and high temperature resistance

Technical Field

The utility model relates to a power cable technical field specifically is a power cable that cold resistance, high temperature resistance are good.

Background

The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater. In the power lines, the cable is increasing in specific gravity. Power cables are cable products used in the trunk lines of power systems to transmit and distribute high power electrical energy, including various voltage classes, 1-500KV and above, and various insulated power cables. The existing power cable needs to transmit high-power in a long distance, the cable can generate heat due to the resistance effect of high-load power transmission of the cable, the phenomenon that the cable is burnt at high temperature is rare when the weather is hot, great influence is brought to power transmission, the cold resistance of the existing cable is poor, and meanwhile, an internal conductive chip is easily extruded, so that the damage of the conductive chip is caused, and the use is influenced. Therefore, a power cable with excellent cold resistance and high temperature resistance is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power cable that cold resistance, high temperature resistance are good 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: the utility model provides a power cable that cold resistance, high temperature resistance are good, includes electrically conductive chip, the electrically conductive chip outside is equipped with the inner protective layer, the inner protective layer outside is equipped with the insulating layer, the insulating layer outside is equipped with the heat preservation, the heat preservation outside is equipped with the asbestos filling layer, the asbestos filling layer outside is equipped with fire-retardant layer, the fire-retardant layer outside is equipped with the silastic-layer, the silastic-layer outside is equipped with cold-resistant rubber layer, the cold-resistant rubber layer outside is equipped with the aluminium foil layer, the aluminium foil layer outside is equipped with the outer protective layer.

Preferably, the inboard both ends in fire-retardant layer equidistance fixedly connected with spring respectively, the spring is kept away from fire-retardant layer one end fixedly connected with arc type baffle respectively, two fixedly connected with backup pad between the arc type baffle.

Preferably, the inner protective layer and the outer protective layer are both made of polytetrafluoroethylene materials.

Preferably, the flame-retardant layer is made of polyacrylonitrile fiber.

Preferably, the insulating layer is made of a PP (polypropylene) pipe film material.

Preferably, the heat preservation layer is made of polyurethane foam materials.

Compared with the prior art, the beneficial effects of the utility model are that: can effectual improvement cable high temperature resistance through fire-retardant layer and silastic-layer, can effectual improvement cable cold resistance through cold-resistant rubber layer and heat preservation, outer protective layer and inner protective layer can effectually prevent the wearing and tearing and the damage of cable, the corrosion resistance of cable can be strengthened on aluminium foil layer, use through the cooperation of spring and camber baffle simultaneously, the effectual extrusion of receiving of conducting chip that prevents, increase the life of cable, prevent that the cable from going wrong the transmission that influences electric power.

Drawings

FIG. 1 is a front view of the cable according to the present invention;

fig. 2 is a front view of the conductive chip of the present invention;

fig. 3 is a perspective view of the arc-shaped baffle plate and the supporting plate of the present invention.

In the figure: 1. a flame retardant layer; 2. an arc-shaped baffle plate; 3. a spring; 4. a support plate; 5. a silicone rubber layer; 6. a cold-resistant rubber layer; 7. an aluminum foil layer; 8. an outer protective layer; 9. an asbestos-filled layer; 10. a conductive chip; 11. an inner protective layer; 12. an insulating layer; 13. and (7) an insulating 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.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a cold resistance, power cable that high temperature resistance is good, including electrically conductive chip 10, electrically conductive chip 10 outside is equipped with interior protective layer 11, interior protective layer 11 outside is equipped with insulating layer 12, the insulating layer 12 outside is equipped with heat preservation 13, the heat preservation 13 outside is equipped with asbestos filling layer 9, the asbestos filling layer 9 outside is equipped with fire-retardant layer 1, fire-retardant layer 1 outside is equipped with silastic layer 5, the silastic layer 5 outside is equipped with cold-resistant rubber layer 6, cold-resistant rubber layer 6 has very strong low temperature resistant ability, still can keep elasticity under the low temperature condition, cold-resistant rubber layer 6 outside is equipped with aluminium foil layer 7, the aluminium foil is mild metal film, it is dampproofing to have, airtight, shading and corrosion-resistant characteristics, the aluminium foil layer 7 outside is equipped with outer protective layer 8.

Further, 1 inboard both ends on fire-retardant layer are equidistance fixedly connected with spring 3 respectively, and spring 3 keeps away from 1 one end on fire-retardant layer fixedly connected with arc baffle 2 respectively, and fixedly connected with backup pad 4 between two arc baffles 2 through the effectual guard action that plays conductive chip 10 of elasticity of spring 3, prevents to extrude the influence and uses.

Furthermore, the inner protective layer 11 and the outer protective layer 8 are both made of polytetrafluoroethylene, and the polytetrafluoroethylene has the characteristics of high wear resistance, corrosion resistance, sealing property, electrical insulation property, good ageing resistance and low temperature resistance.

Further, the flame-retardant layer 1 is made of polyacrylonitrile fiber. The polyacrylonitrile fiber material has the advantages of anti-combustion performance and good flexibility.

Furthermore, the insulating layer 12 is made of a PP tubular film material, which is a semi-crystalline thermoplastic plastic, and has high impact resistance, high mechanical properties, and resistance to corrosion by various organic solvents and acids and bases.

Further, the heat insulating layer 13 is made of polyurethane foam, and the polyurethane foam has good heat insulating performance.

Specifically, use the utility model discloses the time: the outer protective layer 8 and the inner protective layer 11 are made of polytetrafluoroethylene materials, so that the abrasion and the damage of the cable can be effectively prevented, and the cable also has the characteristics of good high temperature resistance and low temperature resistance, at the moment, the polyacrylonitrile fiber material and the silicone rubber layer 5 of the flame-retardant layer 1 can effectively improve the high temperature resistance of the cable and increase the flame-proof performance, at the moment, the polyurethane foam material and the cold-resistant rubber layer 6 of the heat-insulating layer 13 have good heat-insulating effect and have the characteristic of low temperature resistance, the cold-resistant rubber layer 6 can still keep elasticity under the low-temperature condition, at the moment, the aluminum foil in the aluminum foil layer 7 has the characteristics of moisture resistance, air tightness, light shading and corrosion resistance, the corrosion resistance of the cable can be enhanced, at the moment, when the cable is extruded by external force, the spring 3 extrudes the arc-shaped baffle plate 2, at the moment, the supporting plate 4 plays a supporting role in supporting the two arc-shaped baffle plates 2 and prevents the extrusion of the conductive chip 10, the spring 3 now acts as a buffer.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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 power cable with excellent cold resistance and high temperature resistance comprises a conductive chip (10), and is characterized in that: conductive chip (10) outside is equipped with inner protective layer (11), inner protective layer (11) outside is equipped with insulating layer (12), insulating layer (12) outside is equipped with heat preservation (13), heat preservation (13) outside is equipped with asbestos filling layer (9), asbestos filling layer (9) outside is equipped with fire-retardant layer (1), fire-retardant layer (1) outside is equipped with silastic-layer (5), the silastic-layer (5) outside is equipped with cold-resistant rubber layer (6), cold-resistant rubber layer (6) outside is equipped with aluminium foil layer (7), aluminium foil layer (7) outside is equipped with outer protective layer (8).

2. The power cable of claim 1, which is excellent in cold resistance and high temperature resistance, wherein: flame-retardant layer (1) inboard both ends are equidistance fixedly connected with spring (3) respectively, flame-retardant layer (1) one end fixedly connected with arc baffle (2) respectively, two are kept away from in spring (3) fixedly connected with backup pad (4) between arc baffle (2).

3. The power cable of claim 1, which is excellent in cold resistance and high temperature resistance, wherein: the inner protection layer (11) and the outer protection layer (8) are both made of polytetrafluoroethylene materials.

4. The power cable of claim 1, which is excellent in cold resistance and high temperature resistance, wherein: the flame-retardant layer (1) is made of polyacrylonitrile fiber.

5. The power cable of claim 1, which is excellent in cold resistance and high temperature resistance, wherein: the insulating layer (12) is made of a PP (polypropylene) pipe film material.

6. The power cable of claim 1, which is excellent in cold resistance and high temperature resistance, wherein: the heat insulation layer (13) is made of polyurethane foam.