CN201689199U - Temperature measuring optical cable with built-in electric cable - Google Patents
Temperature measuring optical cable with built-in electric cable Download PDFInfo
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- CN201689199U CN201689199U CN2010201929582U CN201020192958U CN201689199U CN 201689199 U CN201689199 U CN 201689199U CN 2010201929582 U CN2010201929582 U CN 2010201929582U CN 201020192958 U CN201020192958 U CN 201020192958U CN 201689199 U CN201689199 U CN 201689199U
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Abstract
The utility model provides a temperature measuring optical cable with a built-in electric cable, which comprises a sensing optical fiber, a pull-resistant component, a stainless steel spiratron and an outer protection layer, wherein the sensing optical fiber and the pull-resistant component are arranged in the stainless steel spiratron, and the outer protection layer packs the stainless steel spiratron. The temperature measuring optical cable has the characteristics of having high sensitivity in measuring the temperature change, stable transmission and the like, meeting the production technology of various electric cables and the continuing technology of the electric cables, greatly reducing the production cost of the electric cable caused by the built-in sensing optical cable, can be widely applied to identifying the temperature singular points in the power cable network system, computing the real-time loading capability of a system, computing the power short-term overloading capability of a grid, optimally configuring the current-carrying capacity of the electric cable, realizing the economic allocation of the load and the like, and having wide market value and enormous market potential.
Description
Technical field
The utility model belongs to fire alarm fire-fighting and electrical network intelligent monitoring technology field, particularly a kind ofly is built in power cable inside based on light Raman scattering principle, is used for the temperature measuring optical cable of sensing cable temperature.
Background technology
The optical fiber distributed type thermometry has characteristics such as anti-electromagnetic field disturbs, frequency of operation is wide, dynamic range is big, it can continuous coverage optical fiber each point along the line temperature, the measuring distance of product can be in 1km to 30km scope both at home and abroad at present, spatial positioning accuracy reaches within the 1m, temperature resolution reaches 0.1 ℃, the characteristics that it can carry out uninterrupted automatic measurement are specially adapted to the application scenario of multimetering on a large scale.Thereby this technology is in the dynamic calculation that reflects the high voltage power cable current-carrying capacity with core temperature indirectly, and the occasions such as measurement of breakpoint location are with a wide range of applications when the temperature monitoring of long-distance cable joint and cable generation disconnection fault.
The installation method of optical fiber has two kinds usually, and a kind of is surface-mount type, and another kind is built-in.Compare with the optical fiber that is strapped in cable surface, the temperature measuring optical cable that is installed in cable inside can be made response faster to the variation of load, and be strapped in the Surface Mount optical fiber of cable surface owing to be subjected to the influence of cable external environment and the insulation screen of cable own, almost can't follow the tracks of the real-time change situation of load truly, it only can react the temperature variations of cable surrounding environment.
Thereby in the ideal case, optical fiber should be placed in as much as possible the actual temperature of measuring cable near the position of the cable core of cable more accurately.But, the high temperature that will make optical fiber have to stand may comprise in the manufacturing course of some high-tension cables with regard to pre-buried method of entering when processing cable pushes and various bending operation, and, strict demand has been proposed also for the external diameter of sensing optic cable because the high-tension cable inner space is limited.Obviously conventional communications optical cable requires can not satisfying cable working technology aspect external diameter and the physical strength.At present, some employed sensing optic cables of cable manufacturer mostly are a stainless steel welding tube optical cable greatly both at home and abroad, fill optical fiber ointment in the pipe and guarantee excess fiber length, this structure sensing optic cable very easily fractures owing to stainless steel seamless pipe, thereby this sensing optic cable all has very big drawback in cable twisting, bundle line technology and cable splice processing, this will bring about great losses for expensive power cable, cable splice and engineering construction.
Summary of the invention
At the deficiencies in the prior art part, the purpose of this utility model provides that a kind of external diameter is little, intensity is high, soft flexible is good, satisfies the built-in temperature measuring optical cable of cable of the various processing technologys of cable, cable splice technology.
For achieving the above object, the utility model is realized by following technological means: the built-in temperature measuring optical cable of a kind of cable, comprise sensor fibre, tensile elements, and stainless steel helix tube and outer jacket, sensor fibre and tensile elements are positioned at stainless steel helix tube; Outer jacket coats stainless steel helix tube.
Wherein, described outer jacket adopts high heat-conducting type compound substance, and its temperature conductivity is more than the 0.6W/m.K, and is higher more than 5 times than conventional plastics temperature conductivity.
Wherein, described stainless steel helix tube carries out wrapped one-tenth pipe for adopting corrosion resistant SUS201 or SUS304 steel band.
Wherein, described tensile elements is that high strength is spun the synthetic fibre yarn.
Wherein, the built-in temperature measuring optical cable external diameter of described cable should be controlled between φ 1.2mm to the φ 1.5mm.
Compared with prior art, advantage of the present utility model is:
(1) adopts the high compound substance of temperature conductivity as cable outer sheath, shorten sensor fibre sensitive time of temperature variation to external world greatly;
Advantages such as (2) placement sensor fibre in the employing stainless steel helix tube has strengthened the optical cable compressive resistance greatly, and it is good to make optical cable also have soft flexible simultaneously, and bending radius is little make things convenient for optical cable to install and lay;
(3) adopt non-metal reinforcement member as tensile elements, fracture elongation is low, makes optical cable that good tension stress be arranged;
(4) whole sensing optic cable external diameter is little, satisfies the built-in space requirement of cable, need not change existing power cable structure and production technology.
The utlity model has sensing temperature changing sensitivity height, characteristics such as transmission is stable, satisfy various cable production technologies, cable splice technology, greatly reduce the cables manufacturing processing cost of bringing because of built-in sensing optic cable, the current-carrying capacity optimization configuration of the calculating of the identification of the temperature singular point that can be widely used in the power cable network system being occurred, the calculating of the real-time load capacity of system, electrical network short-term overload capacity, cable and the aspects such as economy allotment that realize load have marketable value and huge market potential widely.
Description of drawings
Accompanying drawing 1 is a diagrammatic cross-section of the present utility model.
Each label is respectively among the figure: (1) sensor fibre, (2) tensile elements, (3) stainless steel threaded line pipe, (4) outer jacket.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Referring to accompanying drawing 1, the built-in temperature measuring optical cable of a kind of cable of the utility model comprises sensor fibre 1, tensile elements 2, stainless steel helix tube 3 and outer jacket 4, and sensor fibre 1 and tensile elements 2 are positioned at stainless steel helix tube 3; Outer jacket 4 coats stainless steel helix tube 3.
The above, it only is a kind of preferred embodiment of the utility model, be not that technical scope of the present utility model is imposed any restrictions, every foundation technical spirit of the present utility model all still belongs in the scope of the utility model technology any trickle modification, equivalent variations and modification that top embodiment did.
Claims (1)
1. the built-in temperature measuring optical cable of cable comprises sensor fibre, tensile elements, and stainless steel helix tube and outer jacket is characterized in that: sensor fibre and tensile elements are positioned at stainless steel helix tube; Outer jacket coats stainless steel helix tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201929582U CN201689199U (en) | 2010-05-10 | 2010-05-10 | Temperature measuring optical cable with built-in electric cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201929582U CN201689199U (en) | 2010-05-10 | 2010-05-10 | Temperature measuring optical cable with built-in electric cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689199U true CN201689199U (en) | 2010-12-29 |
Family
ID=43377478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201929582U Expired - Fee Related CN201689199U (en) | 2010-05-10 | 2010-05-10 | Temperature measuring optical cable with built-in electric cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689199U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105247A (en) * | 2013-01-22 | 2013-05-15 | 徐州中矿奥特麦科技有限公司 | Coal bed multipoint temperature measuring cable-tray sensor |
| CN111128449A (en) * | 2019-11-11 | 2020-05-08 | 重庆泰山电缆有限公司 | Built-in optical fiber low-voltage cable and manufacturing method thereof |
-
2010
- 2010-05-10 CN CN2010201929582U patent/CN201689199U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105247A (en) * | 2013-01-22 | 2013-05-15 | 徐州中矿奥特麦科技有限公司 | Coal bed multipoint temperature measuring cable-tray sensor |
| CN111128449A (en) * | 2019-11-11 | 2020-05-08 | 重庆泰山电缆有限公司 | Built-in optical fiber low-voltage cable and manufacturing method thereof |
| CN111128449B (en) * | 2019-11-11 | 2021-12-24 | 重庆泰山电缆有限公司 | Built-in optical fiber low-voltage cable and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20150510 |
|
| EXPY | Termination of patent right or utility model |