CN112530629A - Submarine optical cable - Google Patents
Submarine optical cable Download PDFInfo
- Publication number
- CN112530629A CN112530629A CN201910793776.6A CN201910793776A CN112530629A CN 112530629 A CN112530629 A CN 112530629A CN 201910793776 A CN201910793776 A CN 201910793776A CN 112530629 A CN112530629 A CN 112530629A
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- CN
- China
- Prior art keywords
- optical cable
- optical fiber
- optical
- submarine
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 51
- 239000013307 optical fiber Substances 0.000 claims abstract description 45
- 239000004020 conductor Substances 0.000 claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 27
- 229910001220 stainless steel Inorganic materials 0.000 claims description 13
- 239000010935 stainless steel Substances 0.000 claims description 13
- -1 polyethylene Polymers 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 239000011241 protective layer Substances 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 6
- 239000004800 polyvinyl chloride Substances 0.000 claims description 6
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000002674 ointment Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 description 7
- 238000001069 Raman spectroscopy Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/14—Submarine cables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/324—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising temperature sensing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/326—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising pressure sensing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/328—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising violation sensing means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
The invention provides a submarine optical cable which comprises an optical unit, an inner protection layer and an outer protection layer which are sequentially arranged from inside to outside, wherein an insulated electric conductor combination is arranged between the optical unit and the inner protection layer, and a plurality of sensing optical fibers are arranged between the reinforcing layer and the outer protection layer. The sensing optical fiber unit is added on the basis of the existing multipolar submarine optical cable core structure, signals such as underwater sound, vibration, impact, temperature change and the like in a certain range near a submarine optical cable route can be monitored through a corresponding detection instrument and a corresponding detection system, the data acquisition range and the data acquisition quantity of a submarine observation network system are increased, meanwhile, the sensing optical fiber unit is arranged on the outer layer of the cable core, the behavior that the submarine optical cable is manually stripped can be monitored, and the communication optical fiber can be effectively prevented from being intercepted. The functions of loop transmission, information acquisition, route monitoring, eavesdropping prevention and the like of electric energy and information can be realized through the single submarine optical cable.
Description
Technical Field
The invention relates to the technical field of optical cables, in particular to a submarine optical cable.
Background
The seabed observation network is a whole set of observation equipment which is arranged on the seabed for a long time, and is considered as a third platform for observing the earth after the ground and the space by scientists. The submarine observation network comprises a shore base station, a submarine optical cable network (comprising submarine cables, repeaters, splitters and the like), a connection box, an observation instrument equipment platform, various marine observation equipment and the like, wherein the shore base station transmits electric energy to the submarine connection box system in a high-voltage direct current mode through the submarine optical cable network, the submarine connection box system converts high-voltage electricity into medium-low voltage electricity to be supplied to the observation instrument platform and the instrument equipment, observation data are transmitted to the shore base station through the observation instrument equipment platform and the connection box system and then through an optical fiber channel of the submarine optical cable network, and long-term, real-time, high-power, high-capacity and multi-data observation is achieved.
In the existing submarine observation network system, data acquisition is carried out through underwater submarine optical side equipment, acquisition points are few, and the information quantity is small.
Disclosure of Invention
In view of the above, there is a need to provide an improved undersea optical cable.
The technical scheme provided by the invention is as follows:
the submarine optical cable comprises an optical unit, an inner protection layer and an outer protection layer which are sequentially arranged from inside to outside, wherein an insulated electric conductor combination is arranged between the optical unit and the inner protection layer, a reinforcing layer is arranged on the periphery of the inner protection layer, and a plurality of sensing optical fibers are further arranged between the reinforcing layer and the outer protection layer.
Preferably, the optical unit is located at a central position of the undersea optical cable, and the optical unit includes an optical fiber unit and a sheath, and the optical fiber unit includes a stainless steel tube and an optical fiber disposed in the stainless steel tube.
Preferably, the stainless steel pipe is filled with water-blocking ointment, and the number of optical fiber cores in the optical fiber unit is 1-192.
Preferably, the insulated electrical conductor is formed by stranding a plurality of insulated wire cores.
Preferably, the insulated wire core comprises a conductor and an insulated layer coated on the periphery of the conductor.
Preferably, the gaps between the insulated wire cores are filled with water blocking materials.
Preferably, the inner sheath is an inner sheath extruded outside the insulated electrical conductor assembly.
Preferably, the reinforcing layer is longitudinally wrapped or wrapped on the periphery of the inner sheath layer.
Preferably, the sensing optical fiber comprises a plurality of optical fiber units, and the optical fiber units are tightly-packed optical fiber units or loose-packed optical fiber units.
Preferably, the inner protective layer is made of polyethylene, polypropylene, polyvinyl chloride, ethylene propylene rubber or polyurethane.
Compared with the prior art, the submarine optical cable provided by the invention is used for connecting underwater equipment and can monitor the routing condition of the submarine cable, and when light propagates in the optical fiber, scattered light is generated in the reverse direction, wherein the scattered light comprises Rayleigh scattering, Brillouin scattering and Raman scattering. The vibration of the submarine cable can be detected by utilizing the Rayleigh scattering principle and adopting a phase-sensitive optical time domain reflectometer step-by-step optical fiber sensing technology; the Raman scattering and the Brillouin scattering are used for measuring temperature, wherein the Brillouin scattering adopts sensing optical fibers as sensors, large-power detection can be carried out, meanwhile, the Brillouin scattering is sensitive to strain, and the temperature change and the stress change of the submarine cable can be monitored by adopting a stimulated Brillouin scattering technology. Therefore, the observation range of the submarine observation system is effectively expanded, and the functions of loop transmission of electric energy and information, monitoring of signals such as underwater sound, vibration, impact, temperature change and the like in a certain range near a submarine optical cable route, eavesdropping prevention and the like are realized.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is an overall schematic view of a submarine optical cable according to an embodiment of the present invention.
Description of reference numerals:
| |
100 |
| |
10 |
| Optical fiber unit | 11 |
| |
111 |
| |
112 |
| |
12 |
| Insulated |
30 |
| |
31 |
| |
311 |
| |
313 |
| Inner |
50 |
| Reinforcing |
70 |
| Sensing |
71 |
| Sensing |
711 |
| Outer |
90 |
The following detailed description further illustrates embodiments of the invention in conjunction with the above-described figures.
Detailed Description
So that the manner in which the above recited objects, features and advantages of embodiments of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. In addition, the features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth to provide a thorough understanding of embodiments of the invention, and the described embodiments are merely a subset of embodiments of the invention, rather than a complete embodiment. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the embodiments of the present invention.
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 embodiments of the present invention belong. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention.
Referring to fig. 1, a submarine optical cable 100 includes an optical unit 10, an insulated electrical conductor assembly 30, an inner sheath 50, a reinforcing layer 70, and an outer sheath 90, which are sequentially disposed from inside to outside, wherein sensing fibers 71 are distributed on the periphery of the reinforcing layer 70.
In an embodiment, the optical unit 10 is located at a central position, the optical unit 10 includes an optical fiber unit 11 and a sheath 12, the optical fiber unit 11 includes a stainless steel tube 111 and an optical fiber 112 disposed in the stainless steel tube 111, and a high-performance water-blocking ointment is filled in the stainless steel tube for improving the water-blocking performance of the undersea optical cable 100. In some embodiments, the stainless steel tube 111 is formed by seamless welding of stainless steel tubes, the number of cores of the optical fiber 112 is 1-192, and it is understood that the specific number of cores of the optical fiber 112 disposed in the stainless steel tube 111 can be set according to specific information transmission requirements. In one embodiment, the sheath 12 is made of polyethylene, polypropylene, polyvinyl chloride, or other equivalent materials.
In an embodiment, the insulated electrical conductor assembly 30 is twisted around the optical unit 10, the insulated electrical conductor assembly 30 is formed by twisting a plurality of insulated cores 31 into a cable, and a water blocking material is filled in gaps between the insulated cores 31. In one embodiment, the insulated wire core 31 includes a conductor 311 and an insulating layer 313 covering the conductor 311, the conductor 311 is made of copper, the insulating layer 313 is made of polyethylene, in other embodiments, the conductor 311 may also be made of aluminum or other equivalent materials, and the insulating layer 313 may also be made of polypropylene, polyvinyl chloride or other equivalent materials.
In one embodiment, the inner sheath 50 is extruded around the insulated electrical conductor assembly 30, the inner sheath 50 is extruded from polyethylene, and in other embodiments, the inner sheath 50 may be polypropylene, polyvinyl chloride, ethylene propylene rubber, polyurethane, or other equivalent materials.
The reinforcing layer 70 is longitudinally wrapped or wrapped around the outer periphery of the inner protective layer 50, in one embodiment, the reinforcing layer 70 is longitudinally wrapped or wrapped around the outer periphery of the inner protective layer 50 by a steel-plastic composite tape, and in other embodiments, the reinforcing layer 70 may also be formed by longitudinally wrapping or wrapping a steel tape.
The sensing optical fiber 71 comprises a plurality of sensing optical fiber units 711, and the sensing optical fiber units 711 are arranged on the periphery of the reinforcing layer 70 in a circumferential array. In one embodiment, the sensing fiber unit 711 is a tight-buffered fiber unit, and the sensing fiber unit 711 further includes a plurality of fibers. In other embodiments, the sensing fiber unit 711 is a loose fiber unit.
In one embodiment, the outer sheath 90 is extruded from a polyethylene material. In other embodiments, the material of the outer sheath 90 may also be polypropylene, polyvinyl chloride, ethylene propylene rubber, or other equivalent materials.
The invention provides a submarine optical cable 100, which is characterized in that a sensing optical fiber unit 711 is added on the basis of the cable core structure of the existing multipolar submarine optical cable, signals such as underwater sound, vibration, impact, temperature change and the like in a certain range near the submarine optical cable can be monitored through a corresponding detection instrument and a corresponding detection system, the data acquisition range and the data acquisition amount of a submarine observation network system are increased, and meanwhile, the sensing optical fiber unit 711 is arranged on the outer layer of an inner protection layer 50, so that the submarine optical cable can be monitored to be manually stripped, and the communication optical fiber can be effectively prevented from being intercepted. The single submarine optical cable 100 can realize the functions of loop transmission of electric energy and information, information acquisition, route monitoring, eavesdropping prevention and the like.
Although the embodiments of the present invention have been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the embodiments of the present invention.
Claims (10)
1. The utility model provides a submarine optical cable, its includes the optical unit, interior sheath and the outer jacket that set gradually from inside to outside, its characterized in that: the optical unit with be provided with insulating electric conductor combination between the interior sheath, interior sheath periphery is provided with the enhancement layer, the enhancement layer with still be provided with a plurality of sensing optical fiber between the outer jacket.
2. The undersea optical cable of claim 1, wherein: the optical unit is located at the center of the submarine optical cable and comprises an optical fiber unit and a sheath, wherein the optical fiber unit comprises a stainless steel pipe and optical fibers arranged in the stainless steel pipe.
3. The undersea optical cable of claim 2, wherein: and water-blocking ointment is filled in the stainless steel pipe, and the number of optical fiber cores in the optical fiber unit is 1-192.
4. The undersea optical cable of claim 1, wherein: the insulated electric conductor is formed by stranding a plurality of insulated wire cores.
5. The undersea optical cable of claim 4, wherein: the insulating wire core comprises a conductor and an insulating layer coated on the periphery of the conductor.
6. The undersea optical cable of claim 4, wherein: and water blocking materials are filled in gaps among the insulating wire cores.
7. The undersea optical cable of claim 1, wherein: the inner protective layer is formed by extruding the insulated electric conductor combination.
8. The undersea optical cable of claim 1, wherein: the reinforcing layer is longitudinally wrapped or wrapped on the periphery of the inner protective layer.
9. The undersea optical cable of claim 1, wherein: the sensing optical fiber comprises a plurality of optical fiber units, and the optical fiber units are tightly packaged optical fiber units or loose-sleeve optical fiber units.
10. The undersea optical cable of claim 1, wherein: the inner protective layer is made of polyethylene, polypropylene, polyvinyl chloride, ethylene propylene rubber or polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910793776.6A CN112530629A (en) | 2019-08-27 | 2019-08-27 | Submarine optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910793776.6A CN112530629A (en) | 2019-08-27 | 2019-08-27 | Submarine optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112530629A true CN112530629A (en) | 2021-03-19 |
Family
ID=74973933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910793776.6A Pending CN112530629A (en) | 2019-08-27 | 2019-08-27 | Submarine optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112530629A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088264A (en) * | 2021-11-12 | 2022-02-25 | 南京大学 | Underwater umbilical cable with temperature measurement and vibration measurement and three-dimensional shape remodeling capabilities |
| CN116794781A (en) * | 2023-06-20 | 2023-09-22 | 宏安集团有限公司 | Optical fiber ribbon cable with self-early-warning function and self-early-warning method thereof |
-
2019
- 2019-08-27 CN CN201910793776.6A patent/CN112530629A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088264A (en) * | 2021-11-12 | 2022-02-25 | 南京大学 | Underwater umbilical cable with temperature measurement and vibration measurement and three-dimensional shape remodeling capabilities |
| CN114088264B (en) * | 2021-11-12 | 2022-07-26 | 南京大学 | Underwater umbilical cable with temperature measurement and vibration measurement and three-dimensional shape remodeling capabilities |
| CN116794781A (en) * | 2023-06-20 | 2023-09-22 | 宏安集团有限公司 | Optical fiber ribbon cable with self-early-warning function and self-early-warning method thereof |
| CN116794781B (en) * | 2023-06-20 | 2024-03-29 | 宏安集团有限公司 | Optical fiber ribbon cable with self-warning function |
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