CN112017812A

CN112017812A - Submarine cable

Info

Publication number: CN112017812A
Application number: CN202010981019.4A
Authority: CN
Inventors: 程志远
Original assignee: Hubei University of Education
Current assignee: Hubei University of Education
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2020-12-01

Abstract

The invention relates to the technical field of submarine cables, in particular to a submarine cable which comprises a cable body, wherein the cable body sequentially comprises an inner layer, an insulating layer, an outer layer, a non-metal sleeve, an armor layer and an anticorrosive layer from inside to outside, the armor layer comprises a plurality of galvanized steel wires, and the galvanized steel wires are spirally arranged at intervals. The submarine cable has the advantages that the corrosion-resistant layer effectively reduces the corrosion influence on the submarine cable caused by the marine environment, the service life of the submarine cable is obviously prolonged, the structure is simple, the production cost is low, the energy loss is reduced, and the like.

Description

Submarine cable

Technical Field

The invention relates to the technical field of submarine cables, in particular to a submarine cable.

Background

Submarine cables are mainly laid on the sea floor for telecommunication transmission. The submarine cable in the prior art has short service life due to long-term corrosion of seawater, which results in frequent replacement period and high use cost of the submarine cable.

Disclosure of Invention

In view of the above, the present invention provides a submarine cable.

The invention provides a submarine cable which comprises a cable body, wherein the cable body sequentially comprises an inner layer, an insulating layer, an outer layer, a non-metal sleeve, an armor layer and an anticorrosive layer from inside to outside, wherein the armor layer comprises a plurality of galvanized steel wires, and the galvanized steel wires are spirally arranged at intervals.

Further, the anticorrosive coating is an asphalt outer wrapping layer with a polypropylene rope as an internal reinforcing rib.

Further, the inner layer and the outer layer are both semiconductive polyethylene layers.

Further, the insulating layer is a polyethylene layer.

Further, 78 galvanized steel wires are provided.

Furthermore, the pitch diameter ratio of the galvanized steel wire is 7-9, and the diameter (phi) is 5.3mm-7.5 mm.

Further, the non-metal sheath is one of PVC, PE, chlorosulfonated polyethylene, LDPE, MDPE and HDPE.

The technical scheme provided by the invention has the beneficial effects that: the submarine cable has the advantages that the corrosion-resistant layer effectively reduces the corrosion influence on the submarine cable caused by the marine environment, the service life of the submarine cable is obviously prolonged, the structure is simple, the production cost is low, the energy loss is reduced, and the like.

Drawings

Fig. 1 is a schematic structural view of a submarine cable according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1, an embodiment of the present invention provides a submarine cable, which includes a cable body, where the cable body includes, from inside to outside, an inner layer (10), an insulating layer (20), an outer layer (30), a non-metal sleeve (40), an armor layer (50), and an anti-corrosion layer (60), where the armor layer (50) includes a plurality of galvanized steel wires, and the galvanized steel wires are spirally spaced.

In the above embodiment, the anti-corrosion layer (60) is an asphalt outer wrapping layer with polypropylene ropes as internal reinforcing ribs.

Wherein, the first and second connecting parts are connected with each other; the outer tegument layer is an asphalt outer wrapping layer with a polypropylene rope as an internal reinforcing rib, and the cable is prevented from being corroded by seawater.

In the above embodiments, the inner layer (10) and the outer layer (30) are both semiconductive polyethylene layers.

Wherein the semiconductive polyethylene layer can achieve the purpose of reducing energy loss.

In the above embodiment, the insulating layer (20) is a polyethylene layer.

Wherein the polyethylene layer can achieve the purpose of reducing energy loss.

In the above embodiment, the galvanized steel wires were provided with 78.

In the above embodiment, the galvanized steel wire has a pitch diameter ratio of 7 to 9 and a diameter (Φ) of 5.3mm to 7.5 mm.

In the above embodiment, the non-metallic sheath is one of PVC, PE, chlorosulfonated polyethylene, LDPE, MDPE, and HDPE.

In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

The features of the embodiments and embodiments described herein above may be combined with each other without conflict.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The submarine cable is characterized by comprising a cable body, wherein the cable body sequentially comprises an inner layer (10), an insulating layer (20), an outer layer (30), a non-metal sleeve (40), an armor layer (50) and an anticorrosive layer (60), the armor layer (50) comprises a plurality of galvanized steel wires, and the galvanized steel wires are spirally arranged at intervals.

2. A submarine cable according to claim 1, wherein the corrosion protection layer (60) is an outer coating of asphalt with polypropylene strands as internal reinforcement.

3. Submarine cable according to claim 1, wherein both the inner layer (10) and the outer layer (30) are semiconductive polyethylene layers.

4. Submarine cable according to claim 1, wherein said insulating layer (20) is a polyethylene layer.

5. A submarine cable according to claim 1, wherein said galvanized steel wires are provided in 78 numbers.

6. Submarine cable according to claim 5, wherein the galvanized steel wires have a pitch to diameter ratio of 7-9 and a diameter (Φ) of 5.3-7.5 mm.

7. A submarine cable according to claim 1, wherein said non-metallic sheath is one of PVC, PE, chlorosulfonated polyethylene, LDPE, MDPE and HDPE.