CN201765876U - Novel built-in fiber temperature measuring high-voltage crosslinked cable - Google Patents
Novel built-in fiber temperature measuring high-voltage crosslinked cable Download PDFInfo
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- CN201765876U CN201765876U CN2010201413140U CN201020141314U CN201765876U CN 201765876 U CN201765876 U CN 201765876U CN 2010201413140 U CN2010201413140 U CN 2010201413140U CN 201020141314 U CN201020141314 U CN 201020141314U CN 201765876 U CN201765876 U CN 201765876U
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Abstract
The utility model discloses a novel built-in fiber temperature measuring high-voltage crosslinked cable which comprises a conductor (1), a conductor shielding layer (2), an insulating layer (3), an insulation shielding layer (4), a longitudinal water stopping buffer layer (5), a corrugated metal sheath (6), an erosion resistant layer (7) and an outer sheath layer (8), wherein a built-in optical cable device (9) is laid in a cabled middle gap of dividing blocks of the conductor; the built-in optical cable device (9) comprises a temperature measuring optical fiber group (11) and a metal sheath (10); and the metal sheath (10) is formed by rolling metallic copper or metallic aluminum into a corrugated shape. The crosslinked cable has the advantages that by directly performing on-line temperature monitoring on power cable conductors, the temperature at each conductor point along an optical fiber can be accurately measured, fault location can be found in time, the cost is low, the anti-electromagnetic interference capability and the radiation resisting capability of the optical fiber are high, the service life is long, and the crosslinked cable is practical.
Description
Technical field: the utility model relates to mechanical manufacturing field, exactly belongs to electric wire and makes the field.
Background technology: ultra-high-tension power transmission line is the critical infrastructures of electric power system power delivery, its safe operation is significant to electric power system, national economy, social stability and national security, yet the safe operation state of ultra-high-tension power transmission line lacks the otherwise effective technique monitoring means for a long time.In modern industry, the lifting of working temperature has reflected the variation of equipment running status and many physical features, and industrial equipment operation exception or fault show the ANOMALOUS VARIATIONS of temperature usually.Industrial equipment operating temperature monitoring be the device security monitoring the most effectively, the most economic means, the safe operation of equipment is significant.
Along with development of fiber technology, the application of distributed optical fiber temperature sensor technology in the power equipment on-line monitoring obtained development rapidly, and the optical fiber temperature-measurement high-pressure cross-linking cable has obtained promotion and application in a lot of at home and abroad power engineering.But the distributed optical fiber temperature measurement cable mainly contains three kinds of modes at present, and first kind is that optical fiber lays the formula cable for measuring temperature outward, and second kind is the integral with optical fiber cable for measuring temperature, and the third is an optical fiber built-in conductor cable for measuring temperature.First kind be with the optical fiber colligation on cable, the shortcoming of laying formula outward is: (1) because of limited to fiber optic protection, when cable laying, the optical fiber subject to damage, breaks etc.; (2) be subject to termite in the cable trough, mouse or baiting of other toy and impaired; (3), can be subjected to the effect of earth equal pressure and damage with after buried cable together lays; (4) difficulty of installation and design and the complexity of laying task have been increased; (5) the outer formula certainty of measurement of laying is not high.The common structure of second kind of built-in optical fiber temperature-measurement high-pressure cross-linking cable is that optical fiber is laid between insulation screen and the aluminium sheath, it all improves than the outer formula temperature measurement accuracy, sensitivity, anti-electromagnetic interference performance, optical fiber of laying of optical fiber useful life, but shortcoming is easily impaired when aluminium sheath embossing, easily is influenced by heat when aluminium sheath is extruded and when warding off lead.The third optical fiber built-in conductor cable for measuring temperature is that optical fiber (optical cable) is laid in the conductor, optical fiber (optical cable) structure mainly adopts stainless steel snake flexible pipe or stainless steel tube at present, its compressive property is general, after in conductor, placing optical fiber (optical cable), because the difference of metal material can cause that inner field intensity changes, optical fiber transmission signal is exerted an influence and damages optical fiber, simultaneously, very easily damage the middle optical fiber of placing (optical cable) in the milliken conductor stranding process.
The purpose of this utility model provides a kind ofly can effectively monitor cable conductor temperature in the cable running and can prevent effectively that placing the field intensity that causes in the conductor because of optical fiber changes, and also can not exert an influence and damages the novel built-in optical fiber temperature-measurement high-pressure cross-linking cable that optical fiber gets optical fiber transmission signal simultaneously.
Summary of the invention: the utility model is made up of conductor, conductor shield, insulating barrier, insulation screen, vertical water-blocking buffer layer, corrugated metallic sheath, anticorrosive coat, outer jacket, puts into a built in light cable device at the block stranding intermediate gaps place of conductor.Wherein, the built in light cable device is made up of thermometric optical fibre set and wrinkle metallic sheath, thermometric optical fibre set outside clad metal cover, and the thermometric optical fibre set is made up of 1-12 root single mode or multimode fiber; Metallic sheath is to be made by metallic copper, also can be made by metallic aluminium, and metallic sheath is rolled into the wrinkle shape.
The built in light cable device that the utility model adopts, its wrinkle metallic sheath material is identical with conductor, and wrinkle metallic sheath material can be selected metallic copper or metallic aluminium for use, and the wrinkle metallic sheath can be a welding fabrication, also can be extrusion forming.Wrinkle metallic sheath material is identical with conductor can effectively to shield optical fiber place field intensity, field intensity is dropped to minimum, can not have influence on the Optical Fiber Transmission performance, also can not cause optical fiber service life to shorten.And the wrinkle metallic sheath is because of its embossing in forming process, has the wrinkle structure, this wrinkle structure can effectively guarantee the thermometric optical fibre set of inside is supported, so that in milliken conductor stranding process, bear, guarantee the influence that can not be under pressure fully of inner thermometric optical fibre set to built-in optical cable device pressure; In addition, the wrinkle on the metallic sheath has pitch, can guarantee toughness and bending property that it is good, guarantees the not damaged cracking of copper sheathing in conductor stranding and BENDING PROCESS, can satisfy the conductor technological requirement fully.
The utility model has solved on the one hand in the existing built-in fiber thermometric high-pressure cross-linking cable technology and can not directly monitor conductor temperature, low to the conductor temperature measurement accuracy simultaneously, poor sensitivity, anti-outside electromagnetic interference are weak, optical fiber useful life is short, optical fiber easily impaired and technical problem such as easily be influenced by heat when aluminium sheath embossing, have also solved on the other hand to lay in the existing conductor in the optical fiber temperature-measurement high-pressure cross-linking cable technology that thermometric optical fiber is very easily damaged by pressure and field intensity is concentrated and caused the technical problem that the Optical Fiber Transmission performance is affected, optical fiber service life shortens greatly.
The utility model is by being embodied directly in the line temperature monitoring to power cable conductor, the accurate temperature of measuring optical fiber conductor each point along the line, and information density is big; Can in time find abort situation, data are reliable; Easy construction, cost performance is reasonable; Anti-electromagnetic interference of optical fiber and radiation, long service life.Therefore be a kind of online monitoring temperature structural design of cable of practicality.
Description of drawings: the utility model specification comprises two width of cloth accompanying drawings, and the drawing of this accompanying drawing is described as follows:
Fig. 1, the novel built-in optical fiber temperature-measurement high-pressure cross-linking cable cross sectional representation of the utility model
Fig. 2, the utility model cross-sectional area of conductor schematic diagram
Among the figure: 1 is conductor, and 2 is conductor shield, and 3 is insulating barrier, and 4 is insulation screen, and 5 is vertical water-blocking buffer layer, and 6 is corrugated metallic sheath, and 7 is anticorrosive coat, and 8 is outer jacket, and 9 is the built in light cable device, and 10 is metallic sheath, and 11 is the thermometric optical fibre set.
Embodiment: the utility model is made up of conductor 1, conductor shield 2, insulating barrier 3, insulation screen 4, vertical water-blocking buffer layer 5, corrugated metallic sheath 6, anticorrosive coat 7, outer jacket 8, puts into built in light cable device 9 (see figure 1)s at the block stranding intermediate gaps place of conductor.Wherein, built in light cable device 9 is made up of thermometric optical fibre set 11 and metallic sheath 10, thermometric optical fibre set 11 outside clad metal covers 10; Thermometric optical fibre set 11 is made up of 4 root multimode fibers; Metallic sheath 10 is to be made by metallic copper argon arc welding welding, and metallic sheath 10 is rolled into the wrinkle shape, and conductor 1 is to be made of copper.
Claims (5)
1. novel built-in optical fiber temperature-measurement high-pressure cross-linking cable, it is made up of conductor (1), conductor shield (2), insulating barrier (3), insulation screen (4), vertical water-blocking buffer layer (5), corrugated metallic sheath (6), anticorrosive coat (7), outer jacket (8), it is characterized in that putting into built in light cable device (9) at the block stranding intermediate gaps place of conductor.
2. according to the described novel built-in optical fiber temperature-measurement high-pressure cross-linking cable of claim 1, it is characterized in that described built in light cable device (9) is made of thermometric optical fibre set (11) outside clad metal cover (10) thermometric optical fibre set (11) and metallic sheath (10).
3. novel built-in optical fiber temperature-measurement high-pressure cross-linking cable according to claim 2 is characterized in that described thermometric optical fibre set (11) is made up of 1-12 root single mode or multimode fiber.
4. according to the described novel built-in optical fiber temperature-measurement high-pressure cross-linking cable of claim 2, it is characterized in that described metallic sheath (10) is to be made by metallic copper or aluminium.
5. according to the described novel built-in optical fiber temperature-measurement high-pressure cross-linking cable of claim 2, it is characterized in that described metallic sheath (10) is rolled into the wrinkle shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201413140U CN201765876U (en) | 2010-03-26 | 2010-03-26 | Novel built-in fiber temperature measuring high-voltage crosslinked cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201413140U CN201765876U (en) | 2010-03-26 | 2010-03-26 | Novel built-in fiber temperature measuring high-voltage crosslinked cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201765876U true CN201765876U (en) | 2011-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201413140U Expired - Lifetime CN201765876U (en) | 2010-03-26 | 2010-03-26 | Novel built-in fiber temperature measuring high-voltage crosslinked cable |
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| CN (1) | CN201765876U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507042A (en) * | 2011-11-18 | 2012-06-20 | 华中师范大学 | Method and device for embedding optical fiber sensor in intelligent grid power cable |
| CN104409154A (en) * | 2014-11-24 | 2015-03-11 | 无锡江南电缆有限公司 | Round split conductor with internal optical fibers |
| CN108415132A (en) * | 2018-03-30 | 2018-08-17 | 江苏南方通信科技有限公司 | A kind of overcurrent proof magnetic influence optical cable |
| CN112649113A (en) * | 2020-09-11 | 2021-04-13 | 西安理工大学 | Laying method of temperature sensing optical fiber used in power bus temperature measurement system |
| WO2021093340A1 (en) * | 2019-11-11 | 2021-05-20 | 重庆泰山电缆有限公司 | Low-voltage cable with built-in optical fiber, and manufacturing method therefor |
| CN113946023A (en) * | 2021-10-11 | 2022-01-18 | 中天科技海缆股份有限公司 | Water-blocking high-voltage cable with air-blowing optical fiber and conductor built-in temperature-measuring optical fiber |
-
2010
- 2010-03-26 CN CN2010201413140U patent/CN201765876U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507042A (en) * | 2011-11-18 | 2012-06-20 | 华中师范大学 | Method and device for embedding optical fiber sensor in intelligent grid power cable |
| CN104409154A (en) * | 2014-11-24 | 2015-03-11 | 无锡江南电缆有限公司 | Round split conductor with internal optical fibers |
| CN108415132A (en) * | 2018-03-30 | 2018-08-17 | 江苏南方通信科技有限公司 | A kind of overcurrent proof magnetic influence optical cable |
| WO2021093340A1 (en) * | 2019-11-11 | 2021-05-20 | 重庆泰山电缆有限公司 | Low-voltage cable with built-in optical fiber, and manufacturing method therefor |
| CN112649113A (en) * | 2020-09-11 | 2021-04-13 | 西安理工大学 | Laying method of temperature sensing optical fiber used in power bus temperature measurement system |
| CN112649113B (en) * | 2020-09-11 | 2022-11-01 | 西安理工大学 | Laying method for temperature sensing optical fiber in power bus temperature measurement system |
| CN113946023A (en) * | 2021-10-11 | 2022-01-18 | 中天科技海缆股份有限公司 | Water-blocking high-voltage cable with air-blowing optical fiber and conductor built-in temperature-measuring optical fiber |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110316 |