CN209804290U

CN209804290U - High-temperature-resistant, irradiation-resistant and corrosion-resistant cable

Info

Publication number: CN209804290U
Application number: CN201920118254.1U
Authority: CN
Inventors: 王小云
Original assignee: Anhui Shun Letter And Cable Co Ltd
Current assignee: Anhui Shun Letter And Cable Co Ltd
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2019-12-17
Anticipated expiration: 2029-01-24

Abstract

The utility model discloses a high temperature resistant radiation-resistant corrosion-resistant cable, including the wire layer, the insulating layer, the heat-resistant layer, irradiation-resistant layer and corrosion-resistant layer, correspond a set of round copper center conductor of installation in the inside of every group cavity, when separating round copper center conductor, play certain fixed action to round copper center conductor, the inner sheath sets up to crosslinked polyethylene cover, the wire layer and the insulating layer of cladding in proper order outside the wire layer, the heat-resistant layer, irradiation-resistant layer and corrosion-resistant layer constitute complete cable construction, the insulating layer of cladding outside the wire layer, the heat-resistant layer, irradiation-resistant layer and corrosion-resistant layer insulate the wire layer, it is heat-resistant, irradiation-resistant and corrosion-resistant, the irradiation-resistant agent that the irradiation-resistant layer inside was filled can plasticization shaping under the lower temperature condition, avoid the decomposition disappearance of irradiation-resistant agent, the polyether ether ketone pure material of semi-conducting layer has high temperature resistant, corrosion-resistant, the high temperature resistance, the irradiation resistance and the corrosion resistance of the cable are improved, the maintenance is reduced, and the cost is reduced.

Description

High-temperature-resistant, irradiation-resistant and corrosion-resistant cable

Technical Field

The utility model relates to the field of communication technology, specifically be a high temperature resistant corrosion-resistant cable that radiates.

Background

Social economy develops at a high speed, the power demand is increasing day by day, the performance requirement of the electric wire and cable which form the power line is also continuously improved, the high temperature resistance of the cable is particularly applied to the high temperature resistance of the cable in important fields such as building houses, rail transit, industrial and mining enterprises and places with high personnel density, the integrity of an emergency fire-fighting power line can be kept in an extremely complex high-temperature fire environment, the reliable transmission of power energy is ensured, more precious time is won for saving lives and properties of people, the important significance is achieved, in addition, the application environment of the power line is more and more complex, how to improve the irradiation resistance and the corrosion resistance of the cable with the high temperature resistance and improve the laying performance of the cable, the laying and installation of the cable can be carried out in a smaller and more complex space, and the manufacturing cost is reduced while the comprehensive performance is improved, also important, the existing cables are not strong in high temperature resistance, radiation resistance and corrosion resistance under severe conditions, and cannot maintain good insulation performance under severe conditions of high temperature and high humidity, resulting in increased maintenance cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high temperature resistant anti-radiation corrosion-resistant cable, possess the corrosion resisting property who further improves the cable, can plasticization shaping under the lower temperature condition, avoid the decomposition disappearance of anti-radiation agent, still can keep good insulating properties under the high temperature and high humidity's adverse conditions, improve the high temperature resistant of cable, resistant irradiation and corrosion resisting property, reduce the maintenance, reduce cost's advantage, can solve among the prior art cable high temperature resistant under adverse conditions, resistant irradiation and corrosion resisting property are not strong, can not keep good insulating properties under the high temperature and high humidity's adverse conditions, lead to the problem that cost of maintenance increases.

In order to achieve the above object, the utility model provides a following technical scheme: a high-temperature-resistant irradiation-resistant corrosion-resistant cable comprises a conductor layer, and insulating layers, a heat-resistant layer, an irradiation-resistant layer and a corrosion-resistant layer which are sequentially coated on the outer side of the conductor layer, wherein the conductor layer comprises a round copper central conductor, a cavity, an inner sheath and an outer sheath, the round copper central conductor is positioned in the cavity, the four walls of the cavity are arc-shaped walls, the outer wall of the cavity is fixedly connected with the inner wall of the inner sheath, a plurality of groups of cavities are arranged in the inner sheath, the inner sheath is a cross-linked polyethylene sheath, the outer side of the inner sheath is coated with the outer sheath, the outer sheath is a Teflon tube, the outer sheath is coated on the inner side of the insulating layers, the insulating layers comprise composite insulating layers, a semi-conducting layer and a shielding layer, the composite insulating layer is prepared by wrapping polyimide PI materials on the outer side of the outer sheath, the outer wall and the shielding layer fixed connection of semi-conducting layer, the shielding layer sets up to the bilayer from locking-type steel wire structure, the shielding layer cladding is in the inside of heat-resistant layer, the heat-resistant layer includes fire-resistant isolation layer and fire-resistant filling layer, fire-resistant isolation layer is the glass silk self-adhesive tape around the package fire-resistant filling layer, fire-resistant filling layer is glass silk filling rope, the outer wall and the resistant irradiation layer fixed connection of fire-resistant isolation layer, the outmost corrosion-resistant layer that is of resistant irradiation layer, the corrosion-resistant layer sets up the high density network structure who makes into glass fiber and carbon.

Preferably, the round copper central conductor is formed by twisting 19 nickel-plated copper wires, the diameter of the round copper central conductor is 0.26mm, and the thickness of the round copper central conductor is set to be 1.23 +/-0.03 mm.

Preferably, the inner sheath is made of polyimide materials, the diameter of the inner sheath is 3.5mm, the outer sheath is made of polyvinyl chloride materials, and the diameter of the outer sheath is 5 mm.

Preferably, the composite insulating layer is made of three layers of wrapped polyimide PI materials, the wrapping thickness is 0.05mm, and the covering rate is 60% -67%.

Preferably, the diameter of the steel wire adopted by the shielding layer is 0.1mm, and the shielding density is not less than 97%.

Compared with the prior art, the beneficial effects of the utility model are as follows:

The high-temperature-resistant, irradiation-resistant and corrosion-resistant cable is characterized in that a group of round copper central conductors are correspondingly arranged in each group of cavities, the round copper central conductors are separated, meanwhile, a certain fixing effect is achieved on the round copper central conductors, the inner sheath is a crosslinked polyethylene sheath, the conductor layer, the insulating layer, the heat-resistant layer, the irradiation-resistant layer and the corrosion-resistant layer sequentially cover the outer side of the conductor layer form a complete cable structure, the insulating layer, the heat-resistant layer, the irradiation-resistant layer and the corrosion-resistant layer cover the outer side of the conductor layer insulate, resist heat, resist irradiation and resist corrosion, the crosslinked polyethylene is polyethylene modified by crosslinking, the mechanical property, the environmental stress resistance, the cracking property and other comprehensive properties of the polyethylene are improved by crosslinking, the corrosion resistance of the whole cable is further improved, and an irradiation-resistant agent filled in the irradiation-resistant layer can be plasticized and molded at a lower temperature, the decomposition loss of an anti-irradiation agent is avoided, the pure polyether-ether-ketone material of the semi-conductive layer is used as a special high polymer material, the high-temperature-resistant and corrosion-resistant cable has the characteristics of high temperature resistance and corrosion resistance, the good insulating property can be still maintained under the severe conditions of high temperature and high humidity, the high-temperature resistance, irradiation resistance and corrosion resistance of the cable are improved, the maintenance is reduced, and the cost is reduced.

Drawings

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

FIG. 2 is a schematic structural view of an insulating layer and a heat-resistant layer according to the present invention;

FIG. 3 is a schematic view of the winding manner of the round copper central conductor of the present invention;

Fig. 4 is a schematic cross-sectional view of the wire layer according to the present invention.

In the figure: 1. a conductor layer; 11. a round copper central conductor; 12. a cavity; 13. an inner sheath; 14. an outer sheath; 2. an insulating layer; 21. a composite insulating layer; 22. a semiconducting layer; 23. a shielding layer; 3. a heat-resistant layer; 31. a refractory barrier layer; 32. a refractory filler layer; 4. an irradiation resistant layer; 5. A corrosion resistant 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. 1-4, a high temperature resistant, irradiation resistant and corrosion resistant cable comprises a conductor layer 1, and an insulating layer 2, a heat resistant layer 3, an irradiation resistant layer 4 and a corrosion resistant layer 5 which are sequentially coated on the outer side of the conductor layer 1, wherein the conductor layer 1 comprises a round copper central conductor 11, a cavity 12, an inner sheath 13 and an outer sheath 14, the round copper central conductor 11 is located inside the cavity 12, the four walls of the cavity 12 are arc-shaped walls, the outer wall of the cavity 12 is fixedly connected with the inner wall of the inner sheath 13, a plurality of groups of cavities 12 are arranged inside the inner sheath 13, the inner sheath 13 is a cross-linked polyethylene sheath, the outer sheath 14 is coated on the outer side of the inner sheath 13, the outer sheath 14 is made of teflon tubes, the insulating layer 14 is coated on the inner side of the insulating layer 2, the insulating layer 2 comprises a composite insulating layer 21, a semi-conducting layer 22 and a shielding layer 23, the outer side of the composite insulating layer 21 is coated with a semi-conducting layer 22, the semi-conducting layer 22 is prepared by extruding and coating polyether-ether-ketone pure material on the outer side of the composite insulating layer 21, the outer wall of the semi-conducting layer 22 is fixedly connected with a shielding layer 23, the shielding layer 23 is set to be of a double-layer self-locking steel wire structure, the shielding layer 23 is coated inside a heat-resistant layer 3, the heat-resistant layer 3 comprises a fire-resistant isolating layer 31 and a fire-resistant filling layer 32, the fire-resistant isolating layer 31 is a glass wire self-adhesive tape wrapped with the fire-resistant filling layer 32, the fire-resistant filling layer 32 is a glass wire filling rope, the outer wall of the fire-resistant isolating layer 31 is fixedly connected with an irradiation-resistant layer 4, the outermost layer of the irradiation-resistant layer 4 is an corrosion-resistant layer 5, the corrosion-resistant layer 5 is set to be of a high-density mesh structure made of glass fibers and carbon fibers, the inner sheath 13 is made of polyimide materials, the diameter of the inner sheath 13 is 3.5mm, the outer sheath 14 is made of polyvinyl chloride materials, the diameter of the outer sheath 14 is 5mm, the composite insulating layer 21 is made of three-layer wrapped polyimide PI materials, the wrapping thickness is 0.05mm, the covering rate is 60% -67%, the shielding layer 23 is made of steel wires, the diameter of the steel wires is 0.1mm, and the shielding density is not less than 97%.

the working principle is as follows: correspond a set of circle copper central conductor 11 of installation in the inside of every group cavity 12, in the time of 11 divided with circle copper central conductor, play certain fixed action to circle copper central conductor 11, inner sheath 13 sets up to the cross-linked polyethylene cover, wire layer 1 and the cladding in proper order are at insulating layer 2 in the wire layer 1 outside, heat-resistant layer 3, the complete cable construction is constituteed to resistant irradiation layer 4 and corrosion-resistant layer 5, the cladding is at insulating layer 2 in the wire layer 1 outside, heat-resistant layer 3, resistant irradiation layer 4 and corrosion-resistant layer 5 insulate wire layer 1, it is heat-resistant, resistant irradiation and corrosion-resistant.

In summary, the following steps: the high-temperature-resistant radiation-resistant corrosion-resistant cable is characterized in that a group of round copper central conductors 11 are correspondingly arranged in each group of cavities 12, the round copper central conductors 11 are separated, meanwhile, a certain fixing effect is achieved on the round copper central conductors 11, the inner sheath 13 is a cross-linked polyethylene sheath, a conductor layer 1, an insulating layer 2, a heat-resistant layer 3, a radiation-resistant layer 4 and a corrosion-resistant layer 5 sequentially wrapping the outer side of the conductor layer 1 form a complete cable structure, the insulating layer 2, the heat-resistant layer 3, the radiation-resistant layer 4 and the corrosion-resistant layer 5 wrapping the outer side of the conductor layer 1 insulate, resist heat, radiation and resist corrosion on the conductor layer 1, cross-linked polyethylene is cross-linked and modified polyethylene, cross-linking enables comprehensive performances such as mechanical property, environmental stress resistance and cracking performance of the polyethylene to be improved, corrosion resistance of the whole cable is further improved, and radiation-resistant agents filled in the radiation-resistant layer 4 are p-methoxyphenyl, One or more of ferrocene and 6-benzylaminopurine copper complexes can be plasticized and molded at a lower temperature, so that the decomposition loss of an anti-irradiation agent is avoided, and the pure polyether-ether-ketone material of the semi-conducting layer 22 is used as a special high polymer material, so that the high-temperature-resistant and corrosion-resistant cable has the characteristics of high temperature resistance and corrosion resistance, can still maintain good insulating property under the severe conditions of high temperature and high humidity, and improves the high temperature resistance, irradiation resistance and corrosion resistance of the cable.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 high temperature resistant corrosion-resistant cable that radiates, includes wire layer (1) and cladding in proper order insulating layer (2), heat-resistant layer (3), resistant radiation layer (4) and corrosion-resistant layer (5) in the wire layer (1) outside, its characterized in that: the wire layer (1) comprises a round copper central conductor (11), a cavity (12), an inner sheath (13) and an outer sheath (14), the round copper central conductor (11) is located inside the cavity (12), the four walls of the cavity (12) are arc-shaped walls, the outer wall of the cavity (12) is fixedly connected with the inner wall of the inner sheath (13), a plurality of groups of cavities (12) are arranged inside the inner sheath (13), the inner sheath (13) is a cross-linked polyethylene sheath, the outer side of the inner sheath (13) is coated with the outer sheath (14), the outer sheath (14) adopts a Teflon pipe, the outer sheath (14) is coated on the inner side of an insulating layer (2), the insulating layer (2) comprises a composite insulating layer (21), a semi-conducting layer (22) and a shielding layer (23), the composite insulating layer (PI) is obtained on the outer side of the outer sheath (14) around a polyimide material, the outer side of the composite insulating layer (21) is coated with the semi, semi-conducting layer (22) adopt the crowded package of polyether ether ketone pure material to make in the outside of composite insulation layer (21), the outer wall and shielding layer (23) fixed connection of semi-conducting layer (22), shielding layer (23) set up to double-deck self-locking type steel wire structure, shielding layer (23) cladding is in the inside of heat-resistant layer (3), heat-resistant layer (3) are including fire-resistant isolation layer (31) and fire-resistant filling layer (32), fire-resistant isolation layer (31) are the glass silk self-adhesive tape around package fire-resistant filling layer (32), fire-resistant filling layer (32) are glass silk filling rope, the outer wall and resistant irradiation layer (4) fixed connection of fire-resistant isolation layer (31), the outmost corrosion-resistant layer (5) that is of resistant irradiation layer (4), corrosion-resistant layer (5) set up the high density network structure that glass fiber and carbon fiber made.

2. The high temperature, radiation and corrosion resistant cable of claim 1, wherein: the round copper central conductor (11) is formed by twisting 19 nickel-plated copper wires, the diameter of the round copper central conductor is 0.26mm, and the thickness of the round copper central conductor (11) is set to be 1.23 +/-0.03 mm.

3. The high temperature, radiation and corrosion resistant cable of claim 1, wherein: the inner sheath (13) is made of polyimide materials, the diameter of the inner sheath (13) is 3.5mm, the outer sheath (14) is made of polyvinyl chloride materials, and the diameter of the outer sheath (14) is 5 mm.

4. The high temperature, radiation and corrosion resistant cable of claim 1, wherein: the composite insulating layer (21) is made of three layers of wrapped polyimide PI materials, the wrapping thickness is 0.05mm, and the covering rate is 60% -67%.

5. The high temperature, radiation and corrosion resistant cable of claim 1, wherein: the shielding layer (23) is made of steel wires with the diameter of 0.1mm, and the shielding density is not less than 97%.