CN106289390A - A kind of long length submarine cable production monitoring method - Google Patents
A kind of long length submarine cable production monitoring method Download PDFInfo
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- CN106289390A CN106289390A CN201610612970.6A CN201610612970A CN106289390A CN 106289390 A CN106289390 A CN 106289390A CN 201610612970 A CN201610612970 A CN 201610612970A CN 106289390 A CN106289390 A CN 106289390A
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- submarine cable
- cable
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- long length
- monitoring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The invention discloses a kind of long length submarine cable production monitoring method, comprise the following steps: fiber distribution, in preamble produces, is entered in described submarine cable by (100), described submarine cable；(200), by comprising stress field during submarine cable subsequent production described in the monitoring system monitoring of described optical fiber, temperature field and electric field information；(300), judge, according to cable pressure experienced, the change of temperature, the strong and weak of electric field, the position that cable breaks down, it is judged that fault type.Long length submarine cable production monitoring method of the present invention, it is possible to quickly judge the damage location may being subject to when cable produces, it is judged that degree of injury.
Description
Technical field
The present invention relates to power cable and produce fields of measurement, particularly relate to a kind of long length submarine cable production monitoring side
Method.
Background technology
Submarine cable is mainly used in three fields: 1. continent and island, island and island；2. continent and oil platform；
3. Wind Power Plant at Sea transmission.China is an ocean big country, has very long coastline, and submarine cable is either the people
Life or electric power transmit and all play pivotal role.
Due to the special laying condition of submarine cable, the jointless submarine cable of long length is the crucial ring of electric power transmission
Joint.And the manufacturing technology of long length sea cable is more complicated, thought the heavy construction of complicated difficulty by countries in the world.Therefore to sea
The monitoring of cable production process can find the position of trouble point in time, reduces the generation of burst accident.Searching can during sea cable produces
The damage that can occur, reduces the cable quality problem occurred in producing, thus reduces plant produced cost.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of long length submarine cable production monitoring system, it is possible to quickly
Judge the damage location may being subject to when cable produces, it is judged that degree of injury.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide a kind of long length submarine cable
Production monitoring method, comprises the following steps:
(100), described submarine cable preamble produce in, fiber distribution is entered in described submarine cable；
(200), by stress field, temperature during submarine cable subsequent production described in the monitoring system monitoring of the described optical fiber of connection
Field and electric field information；
(300), judge, according to cable pressure experienced, the change of temperature, the strong and weak of electric field, the position that cable breaks down, it is judged that
Fault type.
In a preferred embodiment of the present invention, the production of described preamble includes conductor production, conductor shielding, insulate and insulate
Shield three-layer co-extruded operation.
In a preferred embodiment of the present invention, described step (200) specifically includes:
The position that monitoring pressure and temperature is undergone mutation, obtains pressure and temperature changing value in whole production process, obtains
The maximum of pressure and temperature, minima；The test of electric property to be carried out after submarine cable has produced, by optical fiber and biography
The sensor monitoring contingent shelf depreciation of electric field, partial discharge position, electric field intensity information.
In a preferred embodiment of the present invention, described step (300) specifically includes: described step (200) obtained
Data, as the data model of long length submarine cable production monitoring, are become by described cable data model analysis data
Change, threshold value, it is judged that type that described submarine cable breaks down in process of production and position.
In a preferred embodiment of the present invention, in described step (300), the method for failure judgement type includes:
The extruding that cable is subject in process of production is judged according to submarine cable information of force field, deformation, flexural failure；
According to submarine cable information of force field judge cable insulate in process of production, armouring generation damage fault；
Cable insulation ag(e)ing fault in process of production is judged according to submarine cable temperature field information；
Judge that cable insulate in process of production containing impurity, defect fault according to submarine cable temperature field information.
In a preferred embodiment of the present invention, the described monitoring system in step (200) includes electric field monitoring means, answers
Field of force monitoring means, temperature field monitoring means.
In a preferred embodiment of the present invention, described electric field monitoring means includes: monochromater, optical circulator, sensing
Device head, photoamplifier and oscillograph；
Described monochromater connects with described optical circulator, and described optical fiber connects described optical circulator and described sensor head, institute
Stating optical circulator to be the most also connected with photoamplifier, the outfan of described photoamplifier is connected with described oscillograph.
In a preferred embodiment of the present invention, stress field monitoring means includes optical time domain reflectometer.
In a preferred embodiment of the present invention, described temperature field monitoring means utilizes the heliosensitivity of fiber optic materials, passes through
Incident illumination is concerned with pattern write fibre core by the method for ultraviolet photoetching, produces and prolongs axial change, formed in optical fiber in fibre core
Phase grating, obtains the temperature field information of cable.
In a preferred embodiment of the present invention, described submarine cable includes that conductor, insulating barrier, peninsula electricity are slow from inside to outside
Rushing waterstop and armor, described fiber distribution is in the electricity buffer water-blocking band of the described peninsula.
The invention has the beneficial effects as follows: long length submarine cable production monitoring method of the present invention, it is possible to quickly judge cable
The damage location may being subject to during production, it is judged that degree of injury.
Accompanying drawing explanation
Fig. 1 is the structural representation of a preferred embodiment of submarine cable；
Fig. 2 is the structural representation of long length submarine cable production monitoring system one preferred embodiment of the present invention；
In accompanying drawing, the labelling of each parts is as follows: 1-conductor, 2-insulating barrier, 3-semi-conductive buffer water-blocking band, 5-armor；6-is monochromatic
Light source, 7-optical circulator, 8-optical fiber, 9-sensor head, 10-photoamplifier, 11-oscillograph.
Detailed description of the invention
Below in conjunction with the accompanying drawings presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clear and definite defining.
Referring to Fig. 1 and Fig. 2, the embodiment of the present invention includes:
A kind of long length submarine cable production monitoring system, including: electric field monitoring means, stress field monitoring means and temperature field prison
Survey unit.
Described electric field monitoring means includes monochromater 6, optical circulator 7, is distributed in but light in the submarine cable monitored
Fibre 8, sensor head 9, photoamplifier 10, oscillograph 11 and optical time domain reflectometer；Described monochromater 6 and described optical circulator
7 connections, described optical fiber 8 connects described optical circulator 7 and described sensor head 9, and described optical circulator 7 is also the most electrically amplified with light
Device 10 connects, and the outfan of described photoamplifier 10 is connected with described oscillograph 11.
Described stress field monitoring means includes that optical time domain reflectometer, described optical time domain reflectometer are preferably ambulatory handheld dress
Put, for detecting the stress field of submarine cable.
Described submarine cable to be monitored includes conductor 1, insulating barrier 2, peninsula electricity buffer water-blocking band 3 and armouring from inside to outside
Layer 5, described optical fiber 8 is distributed in described peninsula electricity buffer water-blocking band 3.
Described optical fiber is single mode or multimode fibre, and the present embodiment show single-mode fiber.
The work process of described long length submarine cable production monitoring system is as follows:
Obtain optical fiber backscatter signal by optical time domain reflectometer, it appeared that lightguide cable link have without exception, optical fiber attenuation with
Distribution of lengths is the most uniform.When sea, cable is received certain stress (such as bending, pressurized etc.), is distributed in the optical fiber in the cable of sea
Respective reaction also will occur, make local produce added losses thus obtain the information of force field of this position.
Utilize the heliosensitivity of fiber optic materials, incident illumination is concerned with pattern write fibre core by the method for ultraviolet photoetching,
Produce in fibre core and prolong axial change.Form phase grating in optical fiber, obtain the temperature field information of cable.
The monochromatic light that described monochromater produces is by described optical circulator, by described fiber-optic transfer to described sensor
Head, then through described optical fiber end face and sensing mould reflection produce two ways of optical signals, two ways of optical signals returns to institute through described optical fiber
Stating optical circulator, enter in photoamplifier after interfering, light intensity signal is converted to the signal of telecommunication, the described signal of telecommunication again by
Enter oscillograph after photoamplifier, by oscillograph to data acquisition process, obtain the signal of shelf depreciation, obtain sea cable
Electric field data.
Long length submarine cable production monitoring method of the present invention comprises the following steps:
(100), described submarine cable is before conductor production, conductor shielding, insulation and these several steps of the three-layer co-extruded operation of insulation shielding
During sequence produces, fiber distribution is entered in described submarine cable；
(200), by stress field during submarine cable subsequent production described in long length submarine cable production monitoring system monitoring,
Temperature field and electric field information；The position that monitoring pressure and temperature is undergone mutation, obtains pressure and temperature in whole production process
Changing value, obtain the maximum of pressure and temperature, minima；The survey of electric property to be carried out after submarine cable has produced
Examination, by optical fiber and the contingent shelf depreciation of Sensor monitoring electric field, partial discharge position, electric field intensity information.
(300), judge, according to cable pressure experienced, the change of temperature, the strong and weak of electric field, the position that cable breaks down,
Failure judgement type.The data described step (200) obtained are as the data model of long length submarine cable production monitoring, logical
Cross described cable data model analysis data variation, threshold value, it is judged that described submarine cable breaks down in process of production
Type and position.
The method of failure judgement type includes:
The extruding that cable is subject in process of production is judged according to submarine cable information of force field, deformation, flexural failure；
According to submarine cable information of force field judge cable insulate in process of production, armouring generation damage fault；
Cable insulation ag(e)ing fault in process of production is judged according to submarine cable temperature field information；
Judge that cable insulate in process of production containing impurity, defect fault according to submarine cable temperature field information.
Long length submarine cable production monitoring method of the present invention, obtains sea cable cable insulation, armouring etc. by test optical fiber
Stress field, temperature field, the information of electric field, according to these information judge sea cable produce time whether break down, the position of fault and
Type, can quickly judge the damage location may being subject to when cable produces, it is judged that degree of injury.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description and accompanying drawing content are made convert, or are directly or indirectly used in other relevant skills
Art field, is the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. a long length submarine cable production monitoring method, it is characterised in that comprise the following steps:
(100), described submarine cable preamble produce in, fiber distribution is entered in described submarine cable；
(200), by stress field, temperature during submarine cable subsequent production described in the monitoring system monitoring of the described optical fiber of connection
Field and electric field information；
(300), judge, according to cable pressure experienced, the change of temperature, the strong and weak of electric field, the position that cable breaks down, it is judged that
Fault type.
Long length submarine cable production monitoring method the most according to claim 1, it is characterised in that described preamble produces bag
Include conductor production, conductor shielding, insulation and the three-layer co-extruded operation of insulation shielding.
3. long length submarine cable production monitoring method as claimed in claim 1, it is characterised in that described step (200) has
Body includes:
The position that monitoring pressure and temperature is undergone mutation, obtains pressure and temperature changing value in whole production process, obtains
The maximum of pressure and temperature, minima；The test of electric property to be carried out after submarine cable has produced, by optical fiber and biography
The sensor monitoring contingent shelf depreciation of electric field, partial discharge position, electric field intensity information.
4. long length submarine cable production monitoring method as claimed in claim 1, it is characterised in that described step (300) has
Body includes: the data described step (200) obtained are as the data model of long length submarine cable production monitoring, by described
Cable data model analysis data variation, threshold value, it is judged that the type that described submarine cable breaks down in process of production
And position.
5. long length submarine cable production monitoring method as claimed in claim 4, it is characterised in that in described step (300)
The method of failure judgement type includes:
The extruding that cable is subject in process of production is judged according to submarine cable information of force field, deformation, flexural failure；
According to submarine cable information of force field judge cable insulate in process of production, armouring generation damage fault；
Cable insulation ag(e)ing fault in process of production is judged according to submarine cable temperature field information；
Judge that cable insulate in process of production containing impurity, defect fault according to submarine cable temperature field information.
6. long length submarine cable production monitoring method as claimed in claim 1, it is characterised in that the institute in step (200)
State monitoring system and include electric field monitoring means, stress field monitoring means and temperature field monitoring means.
7. long length submarine cable production monitoring method as claimed in claim 6, it is characterised in that described electric field monitoring means
Including: monochromater, optical circulator, sensor head, photoamplifier and oscillograph；
Described monochromater connects with described optical circulator, and described optical fiber connects described optical circulator and described sensor head, institute
Stating optical circulator to be the most also connected with photoamplifier, the outfan of described photoamplifier is connected with described oscillograph.
8. long length submarine cable production monitoring method as claimed in claim 6, it is characterised in that the monitoring of described stress field is single
Unit includes optical time domain reflectometer.
9. long length submarine cable production monitoring method as claimed in claim 6, it is characterised in that the monitoring of described temperature field is single
Unit utilizes the heliosensitivity of fiber optic materials, is concerned with by incident illumination pattern write fibre core by the method for ultraviolet photoetching, in fibre core
Produce and prolong axial change, form phase grating in optical fiber, obtain the temperature field information of cable.
Long length submarine cable production monitoring system the most according to claim 1, it is characterised in that described submarine cable
Including conductor, insulating barrier, peninsula electricity buffer water-blocking band and armor from inside to outside, described fiber distribution buffers at described peninsula electricity
In waterstop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610612970.6A CN106289390A (en) | 2016-07-29 | 2016-07-29 | A kind of long length submarine cable production monitoring method |
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| CN201610612970.6A CN106289390A (en) | 2016-07-29 | 2016-07-29 | A kind of long length submarine cable production monitoring method |
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| CN106289390A true CN106289390A (en) | 2017-01-04 |
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| CN201610612970.6A Pending CN106289390A (en) | 2016-07-29 | 2016-07-29 | A kind of long length submarine cable production monitoring method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107990836A (en) * | 2017-11-21 | 2018-05-04 | 武汉理工大学 | A kind of pipelines and petrochemical pipelines strain and temperature online monitoring system and method |
| CN112526305A (en) * | 2020-12-30 | 2021-03-19 | 国网河南省电力公司南阳供电公司 | Cable joint discharge live detection method based on high-speed light sensation and pressure wave technology |
| CN115014223A (en) * | 2022-05-25 | 2022-09-06 | 汕头大学 | Submarine cable deformation monitoring system based on sensing grating array |
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| CN102636730A (en) * | 2012-02-22 | 2012-08-15 | 上海海事大学 | Temperature rise strain monitoring and alarming and fault analysis method for composite submarine cable |
| CN102735996A (en) * | 2012-07-17 | 2012-10-17 | 国家电网公司 | Exact locating method for fault points of submarine cable |
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| CN103021546A (en) * | 2012-12-21 | 2013-04-03 | 无锡江南电缆有限公司 | 110 kV cross linked polyethylene insulating single-core submarine cable |
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| CN103557883A (en) * | 2013-09-09 | 2014-02-05 | 华北电力大学（保定） | Submarine photoelectric composite cable omni-directional monitoring and fault point accurate positioning method |
| CN204991254U (en) * | 2015-08-10 | 2016-01-20 | 江苏亨通高压电缆有限公司 | Photoelectric composite cable |
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| CN102636730A (en) * | 2012-02-22 | 2012-08-15 | 上海海事大学 | Temperature rise strain monitoring and alarming and fault analysis method for composite submarine cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990836A (en) * | 2017-11-21 | 2018-05-04 | 武汉理工大学 | A kind of pipelines and petrochemical pipelines strain and temperature online monitoring system and method |
| CN112526305A (en) * | 2020-12-30 | 2021-03-19 | 国网河南省电力公司南阳供电公司 | Cable joint discharge live detection method based on high-speed light sensation and pressure wave technology |
| CN115014223A (en) * | 2022-05-25 | 2022-09-06 | 汕头大学 | Submarine cable deformation monitoring system based on sensing grating array |
| CN115014223B (en) * | 2022-05-25 | 2023-09-01 | 汕头大学 | Submarine cable deformation monitoring system based on sensing grating array |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 215500 Changshou City Economic Development Zone, Jiangsu province Tongda Road, No. 8, No. Applicant after: Hengtong Submarine Power Cable Co.,Ltd. Address before: 215500 Changshou City Economic Development Zone, Jiangsu province Tongda Road, No. 8, No. Applicant before: JIANGSU HENGTONG HIGH-VOLTAGE CABLE CO.,LTD. |
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| COR | Change of bibliographic data | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |
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| RJ01 | Rejection of invention patent application after publication |