CN214753102U

CN214753102U - High-voltage copper wire shielding photoelectric steel-plastic composite sleeve cable

Info

Publication number: CN214753102U
Application number: CN202121387969.0U
Authority: CN
Inventors: 王野; 孙鹤; 王会康; 高琳; 姬芬芬
Original assignee: Qingdao Hanhe Cable Co ltd
Current assignee: Qingdao Hanhe Cable Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-11-16
Anticipated expiration: 2031-06-22

Abstract

The utility model discloses a compound cover cable is moulded to high pressure copper wire shielding photoelectricity relates to high voltage power cable technical field. The high-voltage copper wire shielding photoelectric steel-plastic composite sheathed cable comprises a conductor and a cable outer layer main body wrapping the conductor, wherein the cable outer layer main body sequentially comprises a conductor shielding layer, an insulating shielding layer, an inner wrapping layer, a copper wire shielding layer, an outer wrapping layer, a steel-plastic composite belt, an outer sheath layer and an outer conducting layer from inside to outside; and an optical fiber unit is arranged in the copper wire shielding layer. The utility model can improve the longitudinal water-blocking performance of the cable product by arranging the inner wrapping layer and the outer wrapping layer on the inner side and the outer side of the copper wire shielding layer and matching with the steel-plastic composite belt longitudinally wrapped on the outer sides of the copper wire shielding layer and the outer wrapping layer; the optical fiber unit is arranged in the middle of the copper wire shielding layer, so that signal transmission and online temperature measurement of the cable can be realized, and the product has a photoelectric composite function.

Description

High-voltage copper wire shielding photoelectric steel-plastic composite sleeve cable

Technical Field

The utility model relates to a high voltage power cable technical field, concretely relates to compound cover cable is moulded to high pressure copper wire shielding photoelectricity steel.

Background

A high-voltage copper wire shielding photoelectric steel-plastic composite sheathed cable belongs to the field of high-voltage power cables and is mainly applied to high-voltage power cable system engineering.

At present, the longitudinal water resistance of some high-voltage copper wire shielding photoelectric steel-plastic composite sheathed cables is poor; meanwhile, some high-voltage copper wire shielding photoelectric steel-plastic composite sleeve cables do not have a signal transmission function.

How to solve the technical problems is a technical problem to be solved in the technical field of the high-voltage power cable at present.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the embodiment of the utility model provides a compound cover cable is moulded to high-pressure copper wire shielding photoelectricity steel to solve the problem that proposes in the above-mentioned background art.

The utility model provides a following technical scheme: a high-voltage copper wire shielding photoelectric steel-plastic composite sheathed cable comprises a conductor and a cable outer layer main body wrapping the conductor, wherein the cable outer layer main body sequentially comprises a conductor shielding layer, an insulating shielding layer, an inner wrapping layer, a copper wire shielding layer, an outer wrapping layer, a steel-plastic composite belt, an outer sheath layer and an outer conducting layer from inside to outside; and an optical fiber unit is arranged in the copper wire shielding layer.

Preferably, the optical fiber unit comprises a sheath embedded in the copper wire shielding layer, a supporting piece and an optical fiber tube arranged in the sheath, and an optical fiber arranged in the optical fiber tube.

Preferably, the number of the supporting pieces is 2, and the outer diameter of the supporting pieces is larger than that of the optical fiber tube; the fiber tubes are located between 2 supports.

Preferably, the support member is made of a tensile material.

Preferably, the conductor material is selected from a copper material or an aluminum material.

Preferably, the inner wrapping layer and the outer wrapping layer both adopt semi-conductive water-blocking buffer belts.

Preferably, the steel-plastic composite belt is made of a steel belt and plastic film composite material.

Preferably, the outer sheath layer is made of polyethylene material.

Preferably, the outer conductive layer is made of a polyvinyl semi-conductive material.

The embodiment of the utility model provides a pair of compound cover cable is moulded to high pressure copper wire shielding photoelectricity has following beneficial effect:

1. the utility model can improve the longitudinal water-blocking performance of the cable product by arranging the inner wrapping layer and the outer wrapping layer on the inner side and the outer side of the copper wire shielding layer and matching with the steel-plastic composite belt longitudinally wrapped on the outer sides of the copper wire shielding layer and the outer wrapping layer;

2. the optical fiber unit is arranged in the middle of the copper wire shielding layer, so that signal transmission can be realized, and the product has a photoelectric composite function;

3. meanwhile, the optical fiber unit can realize on-line monitoring of the temperature of the cable, perform positioning of a heating point of the cable, has a fault positioning function and can improve the reliability of a cable product.

Drawings

Fig. 1 is a schematic view of the structure of the high-voltage copper wire-shielded photoelectric steel-plastic composite sheathed cable of the utility model;

fig. 2 is a schematic diagram of the structure of the middle optical fiber unit of the present invention.

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, the technical personnel in the field can obtain all other embodiments without creative work, which all belong to the protection scope of the present invention.

See fig. 1-2.

Problem to above-mentioned background art mentions, the embodiment of the utility model provides a compound cover cable is moulded to high pressure copper wire shielding photoelectricity to solve above-mentioned technical problem, its technical scheme as follows:

a high-voltage copper wire shielding photoelectric steel-plastic composite sheathed cable comprises a conductor 1 and a cable outer layer main body wrapping the conductor 1, wherein the cable outer layer main body sequentially comprises a conductor shielding layer 2, an insulating layer 3, an insulating shielding layer 4, an inner wrapping layer 7a, a copper wire shielding layer 6, an outer wrapping layer 7b, a steel-plastic composite belt 8, an outer sheath layer 9 and an outer conducting layer 10 from inside to outside; and an optical fiber unit 5 is arranged in the copper wire shielding layer 6.

Specifically, the optical fiber unit 5 is arranged in the middle of the copper wire shielding layer 6, can be directly led in the winding processing process of the copper wire, and is convenient to process; the optical fiber unit 5 includes a sheath 5a built in a copper wire shielding layer 6, a support 5b and an optical fiber tube 5c provided in the sheath 5a, and an optical fiber 5d provided in the optical fiber tube 5 c.

Specifically, the number of the supporting pieces 5b is 2, and the outer diameter of each supporting piece is larger than that of the optical fiber tube 5 c; the fiber tubes 5c are located between 2 supports 5 b.

Specifically, the support member 5b is made of a tensile material; the optical fiber protective sleeve can bear larger tension and pressure, and can effectively protect the optical fiber from being damaged by external force.

It should be noted that a single or multiple optical fibers 5d can be arranged in the optical fiber unit 5, so that the optical fiber unit has the functions of signal transmission, cable temperature real-time detection, cable fault location and the like, and realizes the photoelectric composite function on the basis of improving the reliability of the cable, and the product has strong practicability.

Specifically, the conductor 1 is made of a copper material or an aluminum material; the conductor made of copper materials or aluminum materials has low resistivity, reasonable price range, excellent mechanical and processing performances and the like, and can meet the comprehensive requirements of cable application.

Specifically, the inner wrapping layer 7a and the outer wrapping layer 7b both adopt semiconductive water-blocking buffer belts; the strip thickness is nominally 2.0 mm.

By arranging the inner wrapping layer 7a and the outer wrapping layer 7b which are positioned at the inner side and the outer side of the copper wire shielding layer 6 and enabling the materials of the inner wrapping layer 7a and the outer wrapping layer 7b to be semiconductive water-blocking buffer tapes, the buffer characteristics and the excellent water-blocking performance of the semiconductive water-blocking buffer tapes can effectively prevent the copper wire from damaging the insulation shielding in the winding process of the copper wire shielding layer 6; when the cable enters water, the semi-conductive water-blocking buffer belt can be rapidly expanded to block a water transmission route, so that the diffusion speed and range of water can be effectively reduced, and the cable product has longitudinal water-blocking property.

Specifically, the steel-plastic composite belt 8 is made of a steel belt and plastic film composite material, and has a nominal thickness of 0.25 mm; wherein the thickness of the steel strip is 0.15mm, and the thickness of the coating film is approximately 0.1 mm.

The steel-plastic composite belt 8 is processed by adopting a longitudinal wrapping process and longitudinally wrapped outside the copper wire shielding layer 6 and the outer wrapping layer 7 b. The steel belt is made of stainless steel belt materials and is made of nonmagnetic materials, so that eddy current loss and heating generated when the cable runs are avoided, and compared with the traditional aluminum-plastic and copper-plastic composite belt, the steel-plastic composite belt has the characteristics of high strength, low manufacturing cost and the like; meanwhile, the appearance of the cable product can be improved during processing, and the cable product is prevented from wrinkling.

The longitudinal wrapping joint of the steel-plastic belt is bonded by using a hot-melt adhesive material, the plastic surface of the coated film faces outwards, and the molded steel-plastic belt has a good waterproof effect and effectively resists external water from entering the inside of the cable.

Specifically, the outer sheath layer 9 is made of polyethylene material; nominal thickness is 4.0mm-6.5mm, and above-mentioned design makes the utility model discloses have good mechanical and electrical properties, simultaneously, the water-fast characteristic is excellent, applicable in having the wet environment to use.

Specifically, the outer conductive layer 10 is made of a polyvinyl semiconductor material; in this embodiment, the outer conductive layer 10 and the outer sheath layer 9 are processed by a double-layer co-extrusion process, and can be uniformly covered on the surface of the outer sheath layer 9; above-mentioned design makes the utility model discloses have lower resistivity and excellent electric conductive property, can regard as experimental electrode when cable oversheath withstand voltage test.

It should be noted that the insulation structure is composed of a conductor shielding layer 2, an insulation layer 3 and an insulation shielding layer 4, in this embodiment, the conductor shielding layer 2, the insulation layer 3 and the insulation shielding layer 4 are manufactured and molded by a three-layer co-extrusion process, the eccentricity ratio of the insulation layer is controlled to be 5% -10%, good insulation and homogenization electric field performance can be realized, and the operation safety of the product is guaranteed.

The embodiment of the utility model provides a pair of compound cover cable is moulded to high pressure copper wire shielding photoelectricity has following beneficial effect: the utility model can improve the longitudinal water-blocking performance of the cable product by arranging the inner wrapping layer and the outer wrapping layer on the inner side and the outer side of the copper wire shielding layer and matching with the steel-plastic composite belt longitudinally wrapped on the outer sides of the copper wire shielding layer and the outer wrapping layer; the optical fiber unit is arranged in the middle of the copper wire shielding layer, so that signal transmission can be realized, and the product has a photoelectric composite function; meanwhile, the optical fiber unit can realize on-line monitoring of the temperature of the cable, perform positioning of a heating point of the cable, has a fault positioning function and can improve the reliability of a cable product.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

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.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept, and all such alterations and modifications shall fall within the scope of the appended claims.

Claims

1. A high-voltage copper wire shielding photoelectric steel-plastic composite sheathed cable comprises a conductor (1) and a cable outer layer main body wrapping the conductor (1), and is characterized in that the cable outer layer main body sequentially comprises a conductor shielding layer (2), an insulating layer (3), an insulating shielding layer (4), an inner wrapping layer (7a), a copper wire shielding layer (6), an outer wrapping layer (7b), a steel-plastic composite belt (8), an outer sheath layer (9) and an outer conducting layer (10) from inside to outside; and an optical fiber unit (5) is arranged in the copper wire shielding layer (6).

2. The high-voltage copper wire shielding photoelectric steel-plastic composite sheathed cable according to claim 1, wherein the optical fiber unit (5) comprises a sheath (5a) embedded in the copper wire shielding layer (6), a supporting member (5b) and an optical fiber tube (5c) arranged in the sheath (5a), and an optical fiber (5d) arranged in the optical fiber tube (5 c).

3. The high-voltage copper wire shielding photoelectric steel-plastic composite sheathed cable according to claim 2, wherein the number of the supporting members (5b) is 2, and the outer diameter of the supporting members is larger than that of the optical fiber tube (5 c); the fiber tubes (5c) are located between 2 supports (5 b).

4. The high-voltage copper wire-shielded photoelectric steel-plastic composite sheathed cable according to claim 2, characterized in that the support member (5b) is made of a tensile material.

5. The high-voltage copper wire-shielded photoelectric steel-plastic composite sheathed cable according to claim 1, characterized in that the conductor (1) is made of copper material or aluminum material.

6. The high-voltage copper wire-shielded photoelectric steel-plastic composite sheathed cable according to claim 1, characterized in that the inner wrapping layer (7a) and the outer wrapping layer (7b) both adopt semiconductive water-blocking buffer tapes.

7. The high-voltage copper wire-shielded photoelectric steel-plastic composite sheathed cable according to claim 1, characterized in that the steel-plastic composite strip (8) is made of a steel strip and plastic film composite material.

8. The high-voltage copper wire-shielded photoelectric steel-plastic composite sheathed cable according to claim 1, wherein the outer sheath layer (9) is made of polyethylene.

9. The high-voltage copper wire-shielded photoelectric steel-plastic composite sheathed cable according to claim 1, characterized in that the outer conductive layer (10) is made of a polyethylene-based semiconductive material.