CN210142533U - Submarine optical cable - Google Patents
Submarine optical cable Download PDFInfo
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- CN210142533U CN210142533U CN201921405451.8U CN201921405451U CN210142533U CN 210142533 U CN210142533 U CN 210142533U CN 201921405451 U CN201921405451 U CN 201921405451U CN 210142533 U CN210142533 U CN 210142533U
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Abstract
The submarine optical cable comprises an optical unit, an armor layer, a conductor layer, an insulating layer, an enhancement layer and an outer protection layer, wherein the armor layer is arranged outside the optical unit in a twisted mode, the conductor layer is coated on the armor layer, the insulating layer is extruded on the conductor layer, the enhancement layer is coated outside the insulating layer, the outer protection layer is extruded outside the enhancement layer, and sensing optical fibers are distributed between the enhancement layer and the outer protection layer. The submarine optical cable is provided with the sensing optical fiber, so that signals such as temperature change, external force abnormal damage, vibration, impact and the like near the submarine optical cable route can be monitored for monitoring and early warning, accidents are effectively prevented, operation and maintenance cost is reduced, the sensing optical fiber is arranged on the inner side of the outer protective layer, the behavior that the submarine optical cable is manually stripped can be monitored, and the communication optical fiber can be effectively prevented from being eavesdropped.
Description
Technical Field
The utility model relates to a communication cable field especially relates to a submarine optical cable.
Background
The submarine optical cables are laid, installed and operated on the seabed invisible to naked eyes, bear seawater pressure all the time, the submarine cables and underwater facilities can be damaged by natural and artificial factors such as earthquakes, anchoring and the like, the conventional medium and long distance relay submarine optical communication system, the multi-node relay submarine optical communication system and the seabed observation and measurement system are all provided with the relay submarine optical cables to provide large-capacity information transmission and supply power for submarine repeaters, and the conventional submarine optical cables cannot monitor signals such as temperature change, external force abnormal damage and the like near the submarine optical cable routes to perform early warning and do not have the function of preventing eavesdropping.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need for an improved undersea optical fiber cable that is capable of monitoring and protecting the undersea optical fiber cable.
The utility model provides a submarine optical cable, set up including light unit, transposition armor, cladding outside the light unit conductor layer on the armor extruded insulating layer, cladding in on the conductor layer enhancement layer outside the insulating layer reaches crowded package outer jacket outside the enhancement layer, submarine optical cable still includes sensing optical fiber, sensing optical fiber distribute in the enhancement layer with between the outer jacket.
Further, the sensing optical fiber comprises a plurality of sensing optical fiber units, and the sensing optical fiber units comprise a plurality of optical fibers.
Further, the sensing optical fiber unit comprises a tightly-packed optical fiber unit and a loose-packed optical fiber unit.
Further, the optical unit comprises an optical fiber and a sleeve, the optical fiber is arranged in the sleeve, and water-blocking ointment is filled in the sleeve.
Furthermore, the number of the optical fiber cores in the sleeve is 1-192.
Furthermore, the armor is stranded layer by layer outside the sleeve.
Furthermore, the armor layer is provided with at least one layer, and a water blocking material is arranged in the gap of the armor layer.
Furthermore, the conductor layer is arranged on the armor layer in a longitudinal wrapping, lapping or seamless welding mode.
Furthermore, the reinforcing layer longitudinally wraps the insulating layer.
Further, the armor layer is 1-3 layers.
The submarine optical cable is provided with the sensing optical fiber, so that signals such as temperature change, external force abnormal damage, vibration, impact and the like near the submarine optical cable route can be monitored for monitoring and early warning, accidents are effectively prevented, operation and maintenance cost is reduced, the sensing optical fiber is arranged on the inner side of the outer protective layer, the behavior that the submarine optical cable is manually stripped can be monitored, and the communication optical fiber can be effectively prevented from being eavesdropped.
Drawings
Fig. 1 is a schematic structural diagram of an undersea optical cable according to an embodiment of the present invention.
Description of the main elements
| Submarine |
100 |
| Light unit | 10 |
| Optical fiber | 11 |
| |
12 |
| |
20 |
| |
30 |
| Insulating |
40 |
| Reinforcing |
50 |
| Sensing |
60 |
| Outer |
70 |
The following detailed description of the invention will be further described in conjunction with the above-identified drawings.
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.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the submarine optical cable 100 shown in fig. 1 is used for power and information transmission and monitoring protection laid in the seabed, and includes an optical unit 10, an armor layer 20, a conductor layer 30, an insulating layer 40, a reinforcing layer 50, a sensing optical fiber 60 and an outer sheath 70, which are sequentially arranged from inside to outside.
The optical unit 10 is located at the center of the submarine optical cable 100, the optical unit 10 includes an optical fiber 11 and a sleeve 12, the optical fiber 11 is disposed in the sleeve 12, and the optical fiber 11 is used for transmitting information. In one embodiment, the number of the cores of the optical fiber 11 is 1 to 192, and it is understood that the specific number of the cores of the optical fiber 11 disposed in the sleeve 12 can be set according to the specific information transmission requirement. The sleeve 12 is formed by laser seamless welding of stainless steel strips, and water-blocking ointment is filled in the sleeve 12, so that the underwater water-blocking performance of the submarine optical cable 100 can be improved. In other embodiments, the sleeve 12 may also be made of copper, aluminum, alloys, and polyester-based non-metallic materials.
The armor layer 20 is stranded outside the sleeve 12, and a gap of the armor layer 20 is filled with a water blocking material to improve the underwater water blocking performance of the submarine optical cable 100. The armor 20 is used to further provide protection and support to protect the optical fiber 11 from external force. In one embodiment, the armor layer 20 is formed by twisting steel wires, steel strips, non-metallic reinforcements, or other equivalent reinforcements, wherein the steel wires may be high-strength steel wires plated with zinc, phosphate, or zinc-aluminum-magnesium. It is understood that the armor layer 20 can be set to have different layers according to the specific use environment, and is suitable for different water depth sea areas, for example, 1 layer, 2 layers, 3 layers, etc. It will be appreciated that in one embodiment, several armor layers of different materials may be used, for example, a copper wire armor layer may be disposed outside the casing 12, and a stainless steel armor layer may be disposed outside the copper wire armor layer.
The conductor layer 30 is coated outside the armor layer 20 for transmitting electric energy. In one embodiment, it may be used for high voltage power transmission, for example, high voltage power above 10 kv. In one embodiment, the conductive layer 30 may be made of a conductive material such as copper, aluminum, etc., and is disposed on the armor 20 by longitudinal wrapping, or seamless welding. In one embodiment, the conductive layer 30 is formed by copper tape longitudinal wrapping or copper-tube seam-less welding. It is to be understood that in the unrepeatered undersea optical communication system, the conductor layer 30 may not be provided.
The insulating layer 40 is extruded outside the conductor layer 30, and in one embodiment, the insulating layer 40 is coated outside the conductor layer 30 by extrusion molding. The insulating layer 40 is used for insulating the conductor layer 30 and protecting the conductor layer 30 from being affected by electric energy transmission and external force. In one embodiment, the insulating layer 40 is made of one or more of polyethylene, polypropylene, polyvinyl chloride, ethylene propylene rubber, and other equivalent insulating materials.
The reinforcing layer 50 covers the insulating layer 40 for protecting and structurally supporting the undersea optical fiber cable 100. In one embodiment, the reinforcement layer 50 is wrapped longitudinally outside the insulation layer 40 using a steel-plastic composite tape, steel tape, or other equivalent material.
The sensing optical fiber 60 is arranged between the reinforcing layer 50 and the outer protective layer 70, the sensing optical fiber 60 is connected with an external detecting instrument and a detecting system, and the submarine optical cable can be monitored through the disturbance of the submarine optical cable or the stress condition of the optical fiber when being damaged, vibrated and impacted by external force. Specifically, when light propagates through an optical fiber, scattered light is generated in a reverse direction, and the scattered light includes rayleigh scattering, brillouin scattering, and raman scattering. The vibration of the submarine cable can be monitored by utilizing a Rayleigh scattering principle and adopting a distributed optical fiber sensing technology of a phase-sensitive optical time domain reflectometer. Raman scattering is sensitive to temperature and can be used to measure temperature using raman scattering. The Brillouin scattering adopts single-mode optical fiber as a sensor, can be used for long-length monitoring, is sensitive to temperature and strain, and can be used for monitoring the temperature change and stress condition of a submarine cable by adopting a stimulated Brillouin scattering technology.
Since the sensing optical fiber 60 is disposed between the reinforcing layer 50 and the outer sheath 70, and is close to the outer layer of the submarine optical cable 100, the submarine optical cable can be monitored from being artificially stripped, and the communication optical fiber can be effectively prevented from being eavesdropped. In one embodiment, the sensing fiber 60 includes a plurality of sensing fiber units including a plurality of optical fibers, and the sensing fiber units are tight-buffered fiber units or loose-buffered fiber units.
The outer sheath 70 is extruded around the reinforcing layer 50 to protect the entire submarine optical cable 100. In one embodiment, the outer sheath 70 is wrapped around the reinforcing layer 50 by extruding a polymer material or winding a braided abrasion resistant material. The outer sheath 70 is made of one or more materials selected from polyethylene, polypropylene, polyvinyl chloride and ethylene propylene rubber.
It is understood that the submarine optical cable 100 can be used as a core of a submarine optical cable with a relay, and steel wires, non-metallic reinforcing materials or other equivalent reinforcing materials are added to the outer layer of the submarine optical cable 100 to form an armor layer, which can be used as other cable types in different water depths.
The sensing optical fiber is arranged on the inner side of the outer protective layer of the submarine optical cable, so that the behavior that the submarine optical cable is manually stripped can be monitored, the communication optical fiber can be effectively prevented from being eavesdropped, signals such as temperature change, external force abnormal damage, vibration and impact and the like near the submarine optical cable route can be monitored and early warned by being connected with an external detecting instrument and a detecting system, accidents are effectively prevented, and the operation and maintenance cost is reduced.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.
Claims (10)
1. The utility model provides an optical cable at sea bottom, includes that light unit, transposition set up armor, cladding outside the light unit are in conductor layer on the armor, the extruded insulating layer on the conductor layer, cladding in the enhancement layer outside the insulating layer and the crowded package outer jacket outside the enhancement layer, its characterized in that: the submarine optical cable further comprises sensing optical fibers, and the sensing optical fibers are distributed between the reinforcing layer and the outer protective layer.
2. The undersea optical fiber cable of claim 1, wherein: the sensing optical fiber comprises a plurality of sensing optical fiber units, and each sensing optical fiber unit comprises a plurality of optical fibers.
3. The undersea optical fiber cable of claim 2, wherein: the sensing optical fiber unit comprises a tightly-packed optical fiber unit and a loose-sleeve optical fiber unit.
4. The undersea optical fiber cable of claim 1, wherein: the optical unit comprises an optical fiber and a sleeve, the optical fiber is arranged in the sleeve, and water-blocking ointment is filled in the sleeve.
5. The undersea optical cable of claim 4, wherein: the number of optical fiber cores in the sleeve is 1-192 cores.
6. The undersea optical cable of claim 4, wherein: the armor is arranged outside the sleeve layer by layer in a twisted mode.
7. The undersea optical fiber cable of claim 1, wherein: the armor layer is provided with at least one layer number, and a water blocking material is arranged in the gap of the armor layer.
8. The undersea optical fiber cable of claim 1, wherein: the conductor layer is longitudinally wrapped, lapped or welded in a seamless mode on the armor layer.
9. The undersea optical fiber cable of claim 1, wherein: the reinforcing layer is longitudinally wrapped outside the insulating layer.
10. The undersea optical fiber cable of claim 1, wherein: the armor layer is 1-3 layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921405451.8U CN210142533U (en) | 2019-08-27 | 2019-08-27 | Submarine optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921405451.8U CN210142533U (en) | 2019-08-27 | 2019-08-27 | Submarine optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210142533U true CN210142533U (en) | 2020-03-13 |
Family
ID=69736274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921405451.8U Active CN210142533U (en) | 2019-08-27 | 2019-08-27 | Submarine optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210142533U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111443444A (en) * | 2020-03-19 | 2020-07-24 | 烽火通信科技股份有限公司 | Sensing communication composite optical cable and manufacturing method thereof |
| CN111624716A (en) * | 2020-05-08 | 2020-09-04 | 江苏亨通海洋光网系统有限公司 | Composite submarine optical cable integrating communication and environmental monitoring |
| CN111681828A (en) * | 2020-04-29 | 2020-09-18 | 江苏亨通海洋光网系统有限公司 | Composite submarine cable |
-
2019
- 2019-08-27 CN CN201921405451.8U patent/CN210142533U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111443444A (en) * | 2020-03-19 | 2020-07-24 | 烽火通信科技股份有限公司 | Sensing communication composite optical cable and manufacturing method thereof |
| CN111681828A (en) * | 2020-04-29 | 2020-09-18 | 江苏亨通海洋光网系统有限公司 | Composite submarine cable |
| CN111624716A (en) * | 2020-05-08 | 2020-09-04 | 江苏亨通海洋光网系统有限公司 | Composite submarine optical cable integrating communication and environmental monitoring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200902 Address after: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China Patentee after: ZHONGTAN TECHNOLOGY SUBMARINE CABLE Co.,Ltd. Address before: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China Co-patentee before: JIANGSU ZHONGTIAN TECHNOLOGY Co.,Ltd. Patentee before: ZHONGTAN TECHNOLOGY SUBMARINE CABLE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China Patentee after: Zhongtian Technology submarine cable Co., Ltd Address before: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China Patentee before: ZHONGTAN TECHNOLOGY SUBMARINE CABLE Co.,Ltd. |