CN217606584U

CN217606584U - Copper core crosslinked polyethylene insulated power cable with abrasion resistance outside

Info

Publication number: CN217606584U
Application number: CN202221010185.0U
Authority: CN
Inventors: 臧文丙; 宋敬涛; 王雁磊
Original assignee: Guangdong Huayang Cable Industry Co ltd
Current assignee: Guangdong Huayang Cable Industry Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-10-18
Anticipated expiration: 2032-04-28

Abstract

The utility model discloses an outside anti-wear copper core crosslinked polyethylene insulation power cable relates to power cable technical field, for can taking place to pull scraping and distortion in solving current power cable use, the oversheath can produce wearing and tearing damage even to reduce the problem of the safety in utilization of cable. The power cable main part includes the polyethylene oversheath, the outside of polyethylene oversheath is provided with the sand grip that wear-resistants, the inside of sand grip that wear-resistants is provided with the polyurethane elastomer, the power cable main part includes the cable core, the cable core is provided with threely, it is three be provided with flexible locating part between the cable core, flexible locating part includes spacing base member, the outside of spacing base member is provided with spacing draw-in groove, spacing draw-in groove is provided with threely, the cable core includes the copper conductor, the outside of copper conductor is provided with the conductor shielding layer, the outside of conductor shielding layer is provided with the insulating layer.

Description

Copper core crosslinked polyethylene insulated power cable with abrasion resistance outside

Technical Field

The utility model relates to a power cable technical field specifically is an outside resistant copper core crosslinked polyethylene insulation power cable that wears.

Background

The power cable is a cable product used for transmitting and distributing high-power electric energy in a trunk line of a power system, 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. The copper core crosslinked polyethylene insulated power cable is one of power cables, has the advantages of simple production process, light structure, large transmission capacity, convenience in installation, laying, maintenance and the like, is not limited by fall and is widely applied to power systems due to good electrical and mechanical physical properties.

However, in the use process of the existing power cable, dragging, scraping and twisting can occur, and the outer sheath can be worn or even damaged, so that the use safety of the cable is reduced, and the existing requirement is not met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an outside anti-abrasion copper core crosslinked polyethylene insulation power cable to can take place to pull scraping and distortion in solving the current power cable use that proposes in the above-mentioned background art, the oversheath can produce wearing and tearing damage even, thereby reduces the problem of the safety in utilization of cable.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an outside anti-wear copper core crosslinked polyethylene insulated power cable, includes the power cable main part, the power cable main part includes polyethylene insulation oversheath, the outside of polyethylene insulation oversheath is provided with the sand grip that wear-resistants, the inside of sand grip that wear-resistants is provided with the polyurethane elastomer, the power cable main part includes the cable core, the cable core is provided with threely, three be provided with flexible locating part between the cable core.

Preferably, the flexible limiting part comprises a limiting base body, the outer side of the limiting base body is provided with three limiting clamping grooves.

Preferably, the cable core comprises a copper conductor, a conductor shielding layer is arranged on the outer side of the copper conductor, an insulating layer is arranged on the outer side of the conductor shielding layer, an insulating shielding layer is arranged on the outer side of the insulating layer, and a semi-conductive water-blocking tape and copper strip wrapping layer is arranged on the outer side of the insulating shielding layer.

Preferably, the outer side of the cable core is provided with a water blocking rope filling layer, the outer side of the water blocking rope filling layer is provided with an inner water blocking tape wrapping layer, and the outer side of the inner water blocking tape wrapping layer is provided with an aluminum-plastic composite tape lining.

Preferably, a galvanized steel wire armor layer is arranged on the outer side of the aluminum-plastic composite belt lining.

Preferably, an outer water-blocking tape wrapping layer is arranged on the outer side of the galvanized steel wire armor layer, and the polyethylene insulating outer sheath is located on the outer side of the outer water-blocking tape wrapping layer.

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

1. the utility model discloses the outside of polyethylene insulation oversheath has increased wear-resisting sand grip, and wear-resisting sand grip plays the effect and the base face contact of support, and in the in-process of dragging the power cable main part, polyethylene insulation oversheath surface is not direct with the base face contact, has eliminated the frictional force that acts on polyethylene insulation oversheath surface in the dragging process, effectively prevents the wearing and tearing of polyethylene insulation oversheath, scraping and fish tail, improves the ability of resisting wear of power cable main part, guarantees the safety in utilization of power cable main part;

2. the polyurethane elastomer of the utility model has excellent wear resistance, thereby ensuring the wear resistance of the wear-resistant raised lines, the wear-resistant raised lines are durable and wear-resistant, the power cable main body can be protected for a long time, and the use safety of the power cable main body is ensured;

3. the utility model discloses a flexible locating part carries out spacing fixed to the cable core, when the power cable main part receives external extrusion distortion power, prevents dislocation and the distortion of cable core, guarantees the compactness of power cable main part, and polyethylene insulation oversheath non-deformable and fracture are damaged, guarantee the safety in utilization of power cable main part.

Drawings

Fig. 1 is a schematic structural view of an external abrasion-resistant copper core crosslinked polyethylene insulated power cable according to the present invention;

fig. 2 is a three-dimensional perspective view of the polyethylene insulating outer sheath of the present invention;

fig. 3 is a schematic structural view of the polyethylene insulating outer sheath of the present invention;

fig. 4 is a schematic structural diagram of the flexible limiting member of the present invention.

In the figure: 1. a power cable body; 2. a polyethylene insulating outer sheath; 3. wear-resistant convex strips; 4. a polyurethane elastomer; 5. a cable core; 6. a flexible limit piece; 7. a limiting base body; 8. a limiting clamping groove; 9. a copper conductor; 10. a conductor shield layer; 11. an insulating layer; 12. an insulating shield layer; 13. adding a copper strip wrapping layer on the semiconductive water-blocking tape; 14. the inner waterproof tape is wrapped; 15. lining the aluminum-plastic composite belt; 16. a galvanized steel wire armor layer; 17. an outer water-blocking tape wrapping layer; 18. and (5) filling a water blocking rope.

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.

Referring to fig. 1-4, the present invention provides an embodiment of: the utility model provides an outside abrasion-resistant copper core crosslinked polyethylene insulation power cable, including power cable main part 1, power cable main part 1 includes polyethylene oversheath 2, the outside of polyethylene oversheath 2 is provided with wear-resistant sand grip 3, wear-resistant sand grip 3 outside polyethylene oversheath 2 plays the effect of supporting and contacts with the base plane, in the in-process of pulling to power cable main part 1, polyethylene oversheath 2 surface is not direct with the base plane contact, the frictional force that acts on polyethylene oversheath 2 surface in the in-process of pulling has been eliminated, effectively prevent the wearing and tearing of polyethylene oversheath 2, scraping and fish tail, the inside of wear-resistant sand grip 3 is provided with polyurethane elastomer 4, polyurethane elastomer 4 inside wear-resistant sand grip 3 possesses good wear resistance, thereby guarantee wear resistance of wear-resistant sand grip 3, wear-resistant sand grip 3 durable resistance is able to wear-resistantly, can protect power cable main part 1 for a long time, power cable main part 1 includes cable core 5, cable core 5 is provided with three, be provided with flexible locating part 6 between three cable cores 5, flexible locating part 6 carries out spacing fixed to power cable main part 5, when power cable main part 1 receives external extrusion force, prevent the dislocation of power cable main part 5 and distortion, guarantee the compactness of cable main part 2 is damaged closely, make the insulating crack of good.

Further, flexible locating part 6 includes spacing base member 7, and the outside of spacing base member 7 is provided with spacing draw-in groove 8, and spacing draw-in groove 8 is provided with threely, and flexible locating part 6 carries on spacingly fixed to cable core 5, when power cable main part 1 receives external extrusion distortion power, prevents the dislocation and the distortion of cable core 5, guarantees power cable main part 1's compactness, and good compactness makes 2 non-deformable and the fracture damage of polyethylene insulation oversheath.

Further, the cable core 5 comprises a copper conductor 9, a conductor shielding layer 10 is arranged on the outer side of the copper conductor 9, an insulating layer 11 is arranged on the outer side of the conductor shielding layer 10, an insulating shielding layer 12 is arranged on the outer side of the insulating layer 11, and a semi-conductive water blocking tape and copper strip wrapping layer 13 is arranged on the outer side of the insulating shielding layer 12, so that electric field distribution is improved.

Further, a water blocking rope filling 18 is arranged on the outer side of the cable core 5, an inner water blocking tape wrapping layer 14 is arranged on the outer side of the water blocking rope filling 18, an aluminum-plastic composite tape lining 15 is arranged on the outer side of the inner water blocking tape wrapping layer 14, and a YLY type polyethylene double-sided aluminum-plastic composite tape is adopted.

Further, a galvanized steel wire armor layer 16 is arranged on the outer side of the aluminum-plastic composite belt lining 15, and the steel wire twisting direction is the left direction.

Further, an outer water-blocking tape wrapping layer 17 is arranged on the outer side of the galvanized steel wire armor layer 16, the polyethylene insulating outer sheath 2 is located on the outer side of the outer water-blocking tape wrapping layer 17, and the polyethylene insulating outer sheath 2 is made of high-density polyethylene materials.

The working principle is as follows: when the power cable is used, the anti-wear convex strips 3 on the outer side of the polyethylene insulating outer sheath 2 are in contact with a base surface, when the power cable main body 1 is dragged, the surface of the polyethylene insulating outer sheath 2 is not in direct contact with the base surface, friction force acting on the surface of the polyethylene insulating outer sheath 2 in the dragging process is eliminated, abrasion, scraping and scratching of the polyethylene insulating outer sheath 2 are effectively prevented, abrasion resistance of the power cable main body 1 is improved, the polyurethane elastomer 4 inside the anti-wear convex strips 3 has excellent abrasion resistance, abrasion resistance of the anti-wear convex strips 3 is guaranteed, the anti-wear convex strips 3 are durable and abrasion-resistant, long-term protection can be performed on the power cable main body 1, the flexible limiting pieces 6 are used for limiting and fixing the cable core 5, when the power cable main body 1 is subjected to external extrusion twisting force, dislocation and distortion of the cable core 5 are prevented, tightness of the power cable main body 1 is guaranteed, and the polyethylene insulating outer sheath 2 and cracking damage are enabled to be achieved through good tightness, and accordingly use safety of the power cable main body 1 is guaranteed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An externally abrasion-resistant copper-core crosslinked polyethylene insulated power cable comprising a power cable main body (1), characterized in that: the power cable comprises a power cable main body (1) and is characterized in that the power cable main body (1) comprises a polyethylene insulating outer sheath (2), a wear-resistant raised line (3) is arranged on the outer side of the polyethylene insulating outer sheath (2), a polyurethane elastomer (4) is arranged inside the wear-resistant raised line (3), the power cable main body (1) comprises a cable core (5), three cable cores (5) are arranged, and a flexible limiting part (6) is arranged between the cable cores (5).

2. An externally abrasion resistant copper core crosslinked polyethylene insulated power cable according to claim 1, characterized in that: the flexible limiting part (6) comprises a limiting base body (7), limiting clamping grooves (8) are formed in the outer side of the limiting base body (7), and the number of the limiting clamping grooves (8) is three.

3. An externally abrasion resistant copper core crosslinked polyethylene insulated power cable according to claim 1, characterized in that: the cable core (5) comprises a copper conductor (9), a conductor shielding layer (10) is arranged on the outer side of the copper conductor (9), an insulating layer (11) is arranged on the outer side of the conductor shielding layer (10), an insulating shielding layer (12) is arranged on the outer side of the insulating layer (11), and a semi-conductive water-blocking tape and copper strip wrapping layer (13) is arranged on the outer side of the insulating shielding layer (12).

4. An externally abrasion resistant copper core crosslinked polyethylene insulated power cable according to claim 1, characterized in that: the cable comprises a cable core (5) and is characterized in that a water blocking rope filling layer (18) is arranged on the outer side of the cable core (5), an inner water blocking tape wrapping layer (14) is arranged on the outer side of the water blocking rope filling layer (18), and an aluminum-plastic composite tape lining (15) is arranged on the outer side of the inner water blocking tape wrapping layer (14).

5. An externally abrasion resistant copper core crosslinked polyethylene insulated power cable according to claim 4, characterized in that: and a galvanized steel wire armor layer (16) is arranged on the outer side of the aluminum-plastic composite belt lining (15).

6. An externally abrasion resistant copper core crosslinked polyethylene insulated power cable according to claim 5, characterized in that: an outer water-blocking tape wrapping layer (17) is arranged on the outer side of the galvanized steel wire armor layer (16), and the polyethylene insulating outer sheath (2) is located on the outer side of the outer water-blocking tape wrapping layer (17).