CN202120678U - Seabed photoelectric composite cable provided with on-line monitoring function - Google Patents
Seabed photoelectric composite cable provided with on-line monitoring function Download PDFInfo
- Publication number
- CN202120678U CN202120678U CN2011202120353U CN201120212035U CN202120678U CN 202120678 U CN202120678 U CN 202120678U CN 2011202120353 U CN2011202120353 U CN 2011202120353U CN 201120212035 U CN201120212035 U CN 201120212035U CN 202120678 U CN202120678 U CN 202120678U
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- cable
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- line monitoring
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 28
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 239000013307 optical fiber Substances 0.000 claims abstract description 34
- 230000003287 optical effect Effects 0.000 claims abstract description 33
- 239000012212 insulator Substances 0.000 claims abstract description 6
- 230000005693 optoelectronics Effects 0.000 claims description 18
- 230000004888 barrier function Effects 0.000 claims description 5
- 239000002674 ointment Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000013021 overheating Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 10
- 238000004458 analytical method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000253 optical time-domain reflectometry Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The present utility model discloses a seabed photoelectric composite cable provided with the on-line monitoring function. The cable comprises a wire core, a shielding layer, an insulating layer, an insulator shielding and inner cover layer, an armored inner lining layer, an armored layer and an armored outer protection layer successively from the inside to the outside, and at least an optical cable is arranged inside the armored layer. The composite cable is characterized in that the optical cable comprises at least three cores of G652 optical fibers and two cores of G655 optical fibers. By adopting one core of G652 optical fiber to carry out the fault on-line monitoring, and two cores of G652 optical fibers and two cores of G655 optical fibers to carry out the temperature on-line monitoring, faults or local overheating points of sea cables can be discovered timely, the monitoring level of the cable electric power transmission process can be increased, and the cable operation safety can be guaranteed.
Description
Technical field
The utility model relates to a kind of submarine cable technical field, especially relates to a kind of sea floor optoelectronic composite cable with on-line monitoring function.
Background technology
In recent years, along with China's marine economy is built, the exploitation of the offshore islands and the deep-sea energy is accelerated, the surge of subsea power demand.Sea floor optoelectronic composite cable is on the basis of sea electric power cable, to increase the optical cable unit; Transmission of current collection power and optical-fibre communications are one; Not only esy to use, safe and reliable; And can significantly save manufacturing and lay expense, can be widely used in continent and island, island and the electric power of island and offshore platform and the transmission of communicating by letter.Domestic R&D institution and cable manufacturer are through tackling of key scientific and technical problems; The sea floor optoelectronic composite cable of many new structures is proposed; As application number be 201020143086.0 and be called that the Chinese utility model patent of " sea electric power cable that photoelectricity is compound " has proposed that a kind of cost of manufacture is low, cable tensile strength reaches power cable at the bottom of the qualified photoelectric composite sea of conductivity greatly, this cable includes three groups of mutual stacked fiber units.But, the present sea floor optoelectronic composite cable of reporting, its compound optical cable just is used for the transmission of optical communication signal, does not appear in the newspapers as yet this optical cable is applied to the cable security monitoring.Because this optical cable is to be nested in submarine cable inside; The distance of optical cable and extra large cable conductor is closer; This special structure design makes the effectively caloric value of sensing conductor of optical cable; Particularly can in time find to occur the local hot spot that extra large cable mass defect produces in the laid processes because of manufacturing, installing, significant to the cable transmission process monitoring.
Summary of the invention
The utility model technical problem to be solved provides a kind of sea floor optoelectronic composite cable with on-line monitoring function.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of sea floor optoelectronic composite cable with on-line monitoring function; Comprise core, screen, insulating barrier, insulator shielding and the sheath, armouring inner covering, armour and the armouring external protection that set gradually from inside to outside, be embedded with at least one optical cable 8 in the armour.
At least comprise 3 core G652 optical fiber and 2 core G655 optical fiber in the described optical cable.Wherein 1 core G652 optical fiber is used for the On-line Fault monitoring, and other 2 core G652 optical fiber and 2 core G655 optical fiber are used for temperature monitoring.
Factice for filling in the described optical cable is used to block water, and prevents moisture attacks optical fiber; In addition, can play cushioning effect, avoid vibrating, the influence of mechanical force such as impact optical fiber.
The utility model utilizes that 5 core fibres carry out malfunction monitoring and temperature monitoring in the optical cable in the sea floor optoelectronic composite cable.Optoelectronic composite cable bigger bending possibly occur in work progress, even fracture occurs, causes cable fault.The utility model utilizes the wherein 1 core G652 optical fiber in the optical cable to be used for the On-line Fault monitoring.In addition, optoelectronic composite cable is in running, because electric cable stoppage possibly produce local hot spot, has limited the increase of load capacity, and is serious even cause cable fire.Therefore, it is significant cable temperature to be carried out distributed on line monitoring.The utility model utilizes 4 core fibres in the optical cable, realizes the temperature monitoring of whole piece sea cable with Brillouin optical time domain analysis BOTDA technology.Because Brillouin optical time domain analysis BOTDA technology has temperature and strain cross sensitivity effect, the utility model utilizes 2 core G652 optical fiber to constitute the different loop of two-way with 2 core G655, realizes the temperature information demodulation.
The beneficial effect of the utility model: in sea floor optoelectronic composite cable, increase special optical fiber; Make full use of optical fiber in the optical cable composite rope; Utilize optical time domain reflection OTDR technology and Brillouin optical time domain analysis BOTDA technology to realize extra large cable fault and on-line temperature monitoring; In time find the fault or the local hot spot of extra large cable, improve the monitoring level of cable electric power transfer process, ensure the cable security of operation.
Description of drawings
Fig. 1 is the structural representation of the sea floor optoelectronic cable of the utility model.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
A kind of sea floor optoelectronic composite cable in the present embodiment with on-line monitoring function; Comprise core 1, screen 2, insulating barrier 3, insulator shielding and sheath 4, armouring inner covering 5, armour 6 and armouring external protection 7, be embedded with at least one optical cable 8 in the armour 6.Core 1 is outside equipped with screen 2; Be outside equipped with insulating barrier 3 at screen 2; Be outside equipped with insulator shielding and sheath 4 at insulating barrier 3; Be outside equipped with armour 6 in insulator shielding and sheath 4, armour 6 is made up of many galvanized steel wire ropes in the present embodiment, and galvanized steel wire rope is positioned at the structure of same periphery distribution with cross section and the protective layer that forms.Armour 6 also comprises armouring inner covering 5, and armouring inner covering 5 is the pitch inner cushion layer of polypropylene rope as inner reinforcement in the present embodiment.In armour 6, be embedded with an optical cable 8, optical cable 8 adopts the stainless steel tube protection, and stretch-proof, counter-bending can be satisfied the sea electric power cable construction requirement.3 core G652 optical fiber and 2 core G655 optical fiber are arranged in the optical cable 8.For preventing that optical fiber receives moisture attacks, be filled with ointment in the optical cable.Armour 6 is outer also to be provided with armouring external protection 7, and the armouring external protection is 7 to be the pitch outerwrap layer of polypropylene rope as inner reinforcement in the present embodiment.
The utility model utilizes 3 core G652 optical fiber and the 2 core G655 optical fiber in the optical cable 8 in the sea floor optoelectronic composite cable to carry out malfunction monitoring and temperature monitoring; Wherein 1 core G652 optical fiber is used for the On-line Fault monitoring; Laser pulse is from an end incident of sea floor optoelectronic composite cable; Receive the back-scattering light that returns from optical fiber from the incident termination,, can analyze length of fiber and damage situations according to the intensity and the echo time of scattered signal.Utilize 2 core G652 optical fiber and 2 core G655 optical fiber in the optical cable, can adopt Brillouin optical time domain analysis BOTDA technology to realize the temperature monitoring of whole piece sea cable.Brillouin optical time domain analysis BOTDA technology is a kind of advanced person's a distributing optical fiber sensing technology; It utilizes two narrow linewidth lasers with difference on the frequency; Two ends difference correlation from optical fiber realizes distributed measurement, in fields such as monitoring structural health conditions, intelligent grids application is arranged.For constituting optical fiber loop, an end of sea floor optoelectronic composite cable need be done welding and handle.In addition; Because Brillouin optical time domain analysis BOTDA technology has temperature and strain cross sensitivity effect; For separating strain effect; The utility model utilizes 2 core G652 optical fiber to constitute the different loop of two-way with 2 core G655, and G652 optical fiber has different Brillouin shift characteristics with G655 optical fiber, can realize the temperature information demodulation.
Claims (2)
1. sea floor optoelectronic composite cable with on-line monitoring function; Comprise core, screen, insulating barrier, insulator shielding and the sheath, armouring inner covering, armour and the armouring external protection that set gradually from inside to outside; Be embedded with at least one optical cable in the described armour, it is characterized in that comprising at least in the described optical cable 3 core G652 optical fiber and 2 core G655 optical fiber.
2. a kind of sea floor optoelectronic composite cable with on-line monitoring function as claimed in claim 1 is characterized in that being filled with ointment in the described optical cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202120353U CN202120678U (en) | 2011-06-21 | 2011-06-21 | Seabed photoelectric composite cable provided with on-line monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202120353U CN202120678U (en) | 2011-06-21 | 2011-06-21 | Seabed photoelectric composite cable provided with on-line monitoring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202120678U true CN202120678U (en) | 2012-01-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202120353U Expired - Lifetime CN202120678U (en) | 2011-06-21 | 2011-06-21 | Seabed photoelectric composite cable provided with on-line monitoring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202120678U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678520A (en) * | 2014-12-30 | 2015-06-03 | 江苏通能信息有限公司 | Fire-resistant intelligent micro cable and manufacturing method thereof |
| CN104697432A (en) * | 2015-02-04 | 2015-06-10 | 浙江大学 | Tube cable with deformation self-checking function |
| CN108020894A (en) * | 2018-01-24 | 2018-05-11 | 苏州专创光电科技有限公司 | A kind of stress optical cable with infiltration monitoring function |
| CN117169658A (en) * | 2023-11-03 | 2023-12-05 | 四川省东舜智能科技有限公司 | Photoelectric hybrid cable monitoring method |
-
2011
- 2011-06-21 CN CN2011202120353U patent/CN202120678U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678520A (en) * | 2014-12-30 | 2015-06-03 | 江苏通能信息有限公司 | Fire-resistant intelligent micro cable and manufacturing method thereof |
| CN104697432A (en) * | 2015-02-04 | 2015-06-10 | 浙江大学 | Tube cable with deformation self-checking function |
| CN104697432B (en) * | 2015-02-04 | 2017-03-15 | 浙江大学 | A kind of umbilical that can realize deformation self-checking function |
| CN108020894A (en) * | 2018-01-24 | 2018-05-11 | 苏州专创光电科技有限公司 | A kind of stress optical cable with infiltration monitoring function |
| CN117169658A (en) * | 2023-11-03 | 2023-12-05 | 四川省东舜智能科技有限公司 | Photoelectric hybrid cable monitoring method |
| CN117169658B (en) * | 2023-11-03 | 2024-02-02 | 四川省东舜智能科技有限公司 | Photoelectric hybrid cable monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20130106 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130106 Address after: 316021 Huimin bridge, Dinghai District, Zhejiang, Zhoushan Patentee after: Zhoushan Electric Power Suppy Bureau Patentee after: State Grid Corporation of China Address before: 316021 Huimin bridge, Dinghai District, Zhejiang, Zhoushan Patentee before: Zhoushan Electric Power Suppy Bureau |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |
|
| CX01 | Expiry of patent term |