CN114068097A

CN114068097A - Coaxial bipolar submarine optical cable

Info

Publication number: CN114068097A
Application number: CN202111481491.2A
Authority: CN
Inventors: 徐军; 陆荣张; 杜浩华
Original assignee: Jiangsu Tongguang Marine Opto Electronic Technology Co ltd
Current assignee: Jiangsu Tongguang Marine Opto Electronic Technology Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-02-18

Abstract

The invention discloses a coaxial bipolar submarine optical cable which comprises a stainless steel optical unit, wherein an inner armor steel wire, a bipolar layer, a semi-conducting layer, an outer insulating layer and an outer sheath layer are arranged outside the stainless steel optical unit, the bipolar layer comprises a copper pipe positioned outside the inner armor steel wire, the copper pipe is externally provided with the inner insulating layer, a shielding layer, the inner sheath layer and a copper wire, and the semi-conducting layer, the outer insulating layer and the outer sheath layer are sequentially extruded outside the copper wire. According to the invention, the insulating layer is arranged between the copper pipe and the copper wire, so that the copper pipe and the copper wire can exist as two independent bodies at the same time, and can be used as the anode and the cathode of an optical cable at the same time without using two optical cables as the anode and the cathode respectively when in use, thereby ensuring the power supply requirement of underwater equipment.

Description

Coaxial bipolar submarine optical cable

Technical Field

The invention relates to the field of optical cables, in particular to a coaxial bipolar submarine optical cable.

Background

At present, the submarine optical cable used in the submarine transmission network has higher requirements on occasions with high requirements on electric energy and signal transmission. At present, Chinese economy has been developed into outward economy highly depending on the ocean, the dependence degree on ocean resources and space is greatly improved, the ocean rights and interests outside the jurisdiction sea area also need to be continuously maintained and expanded, the submarine optical cable is used as the medium strength and has irreplaceable function, and the novel coaxial bipolar submarine optical cable further expands various performances of the submarine optical cable.

In the published document CN 201611063231-a large-section submarine optical cable, the copper tube and the copper wire are in a contact state, that is, the copper tube and the copper wire are used as a whole as a single electrode, and when the submarine optical cable is used, two optical cables are needed to be used as an anode and a cathode respectively for supplying power, which is very troublesome, the laying amount of the optical cables is high, and the cost is high.

Disclosure of Invention

In order to solve the problems, the invention discloses a coaxial bipolar submarine optical cable, wherein one optical cable can be used as a positive electrode and a negative electrode simultaneously, so that the number of the optical cables is reduced, the overall cost is reduced, and the power supply requirement of underwater equipment is ensured.

The technical scheme of the invention is as follows: the utility model provides a coaxial bipolar submarine optical cable, includes stainless steel optical unit, and stainless steel optical unit is equipped with interior armour steel wire, bipolar layer, semi-conducting layer, outer insulating layer and oversheath layer outward, and bipolar layer is equipped with inner insulating layer, shielding layer, inner sheath layer and copper wire including being located the outer copper pipe of interior armour steel wire outside the copper pipe for copper pipe and copper wire exist as two solitary individuals simultaneously, and the copper wire is crowded outward in proper order and is wrapped up semi-conducting layer, outer insulating layer and oversheath layer.

Furthermore, the inner armor steel wires are stranded on the stainless steel optical units, the inner insulating layer is extruded outside the copper pipe, and the copper wires are stranded on the inner sheath layer.

And further, water-blocking filling is carried out between the gaps of the inner armor steel wire and the copper pipe.

Furthermore, the number of the stainless steel optical unit cores is 2-96 cores.

Further, the inner armor steel wire is a high-strength phosphated steel wire.

Further, the copper pipe is formed by the copper strip through roller forming and argon arc welding and is drawn, and the inner armor steel wire and the copper pipe are tightly wrapped.

Furthermore, the inner insulating layer, the outer insulating layer and the outer sheath layer are all formed by polyethylene extrusion.

Furthermore, the copper wire stranding layer is formed by stranding a plurality of copper wires, and the stranding direction is consistent with that of the inner armor steel wire.

Further, the semiconductive layer is extruded from a semiconductive jacket material.

The invention has the advantages that: according to the invention, the insulating layer is arranged between the copper pipe and the copper wire, so that the copper pipe and the copper wire can exist as two independent bodies at the same time, and can be used as the anode and the cathode of an optical cable at the same time without using two optical cables as the anode and the cathode respectively when in use, thereby causing the waste of optical cable resources.

Drawings

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

wherein: 1. A stainless steel light unit; 2. inner armor wires; 3. water-blocking filling; 4. a copper pipe; 5. an inner insulating layer; 6. a shielding layer; 7. an inner jacket layer; 8. a copper wire; 9. a semiconducting layer; 10. an outer insulating layer; 11. an outer jacket layer.

Detailed Description

For the purpose of enhancing an understanding of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.

As shown in fig. 1, a coaxial bipolar submarine optical cable comprises a stainless steel optical unit 1, wherein the number of cores of the stainless steel optical unit 1 is 2-96, an inner armor steel wire 2, a bipolar layer, a semi-conducting layer 9, an outer insulating layer 10 and an outer sheath layer 11 are arranged outside the stainless steel optical unit 1, the bipolar layer comprises a copper pipe 4 positioned outside the inner armor steel wire 2, an inner insulating layer 5, a shielding layer 6, an inner sheath layer 7 and a copper wire 8 are arranged outside the copper pipe 4, the semi-conducting layer 9, the outer insulating layer 10 and the outer sheath layer 11 are sequentially extruded outside the copper wire 8, the semi-conducting layer 9 is formed by extruding a semi-conducting sheath material, and an insulating layer is arranged between the copper pipe 4 and the copper wire 8, so that the copper pipe 4 and the copper wire 8 can exist as two independent individuals and can simultaneously supply power as a bipolar power supply of a cable.

Interior armour steel wire 2 transposition is on stainless steel light unit 1, interior armour steel wire 2 is high strength phosphating steel wire, can strengthen the intensity of whole optical cable, under the condition that weight is lighter, increase strength, when maintaining the optical cable and salvaging, can prevent the holistic fracture of optical cable, 5 crowded packages of internal insulation are outside copper pipe 4, copper wire 8 transposition is on inner sheath layer 7, fill 3 of blocking water between the gap of interior armour steel wire 2 and copper pipe 4, fill 3 of blocking water can prevent effectively that the optical cable from producing cracked time, inside outside sea water permeates the optical cable, the time of whole optical cable maintenance of extension, reduce the use cost of optical cable.

Copper pipe 4 is formed through the gyro wheel shaping by the copper strips through argon arc welding to draw, and the parcel is tight between interior armour steel wire 2 and the copper pipe 4, can make the power of outside transmit interior armour steel wire 2 on, the convenient construction to the optical cable is salvaged.

The inner insulating layer 5, the outer insulating layer 10 and the outer sheath layer 11 are all formed by extruding polyethylene.

Many copper wires of 8 transposition layers of copper wire are twisted and are formed, and the direction of transposition is unanimous with 2 transposition directions of interior armour steel wires, when the optical cable carries out the dish cable, places the optical cable in the cable inlet pond, makes things convenient for the optical cable to carry out the dish cable, arranges neatly.

Claims

1. A coaxial bipolar submarine optical cable comprises a stainless steel optical unit, wherein an inner armor steel wire, a bipolar layer, a semi-conducting layer, an outer insulating layer and an outer sheath layer are arranged outside the stainless steel optical unit, and the coaxial bipolar submarine optical cable is characterized in that: the bipolar layer comprises a copper pipe positioned outside the inner armor steel wire, an inner insulating layer, a shielding layer, an inner sheath layer and a copper wire are arranged outside the copper pipe, and a semi-conducting layer, an outer insulating layer and an outer sheath layer are sequentially extruded outside the copper wire.

2. The coaxial bipolar undersea optical cable of claim 1, wherein: the inner armor steel wires are stranded on the stainless steel optical units, the inner insulating layer is extruded outside the copper pipe, and the copper wires are stranded on the inner sheath layer.

3. The coaxial bipolar undersea optical cable of claim 1, wherein: and water-blocking filling is carried out between the gaps of the inner armor steel wires and the copper pipes.

4. The coaxial bipolar undersea optical cable of claim 1, wherein: the number of the stainless steel optical unit cores is 2-96.

5. The coaxial bipolar undersea optical cable of claim 1, wherein: the inner armor steel wire is a high-strength phosphatized steel wire.

6. The coaxial bipolar undersea optical cable of claim 1, wherein: the copper pipe is formed by a copper strip through roller forming and argon arc welding and is drawn, and the inner armor steel wire and the copper pipe are tightly wrapped.

7. The coaxial bipolar undersea optical cable of claim 1, wherein: the inner insulating layer, the outer insulating layer and the outer sheath layer are all formed by polyethylene extrusion.

8. The coaxial bipolar undersea optical cable of claim 1, wherein: and a plurality of copper wires are twisted on the copper wire twisting layer, and the twisting direction is consistent with that of the inner armor steel wire.

9. The coaxial bipolar undersea optical cable of claim 1, wherein: the semi-conductive layer is formed by extruding a semi-conductive sheath material.