CN104616802A - Intelligent optical fiber composite temperature measurement and transmission medium-voltage cable - Google Patents
Intelligent optical fiber composite temperature measurement and transmission medium-voltage cable Download PDFInfo
- Publication number
- CN104616802A CN104616802A CN201510076267.3A CN201510076267A CN104616802A CN 104616802 A CN104616802 A CN 104616802A CN 201510076267 A CN201510076267 A CN 201510076267A CN 104616802 A CN104616802 A CN 104616802A
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- Prior art keywords
- layer
- optical fiber
- loose tube
- cable
- voltage cable
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 40
- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 238000009529 body temperature measurement Methods 0.000 title abstract description 5
- 239000002131 composite material Substances 0.000 title abstract description 5
- 239000004020 conductor Substances 0.000 claims abstract description 11
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims abstract description 8
- -1 polypropylene Polymers 0.000 claims abstract description 7
- 239000004743 Polypropylene Substances 0.000 claims abstract description 4
- 229920001155 polypropylene Polymers 0.000 claims abstract description 4
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 4
- 230000009974 thixotropic effect Effects 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 17
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 6
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 abstract description 3
- 239000004703 cross-linked polyethylene Substances 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract 3
- 230000003287 optical effect Effects 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000012815 thermoplastic material Substances 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 10
- 239000000835 fiber Substances 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention discloses an intelligent optical fiber composite temperature measurement and transmission medium-voltage cable. Each insulating cable comprises a conductive cable core, a conductor shielding layer, a crosslinked polyethylene insulating layer, an insulating shielding layer and a metal shielding layer, wherein the conductor shielding layer, the crosslinked polyethylene insulating layer, the insulating shielding layer and the metal shielding layer sequentially wrap the conductive cable core from inside to outside. The metal shielding layers of every two adjacent insulating cables make contact with each other. A layer stranded optical fiber serves as an optical unit. The optical unit comprises a central reinforcement piece and a plurality of loose tubes arranged on the periphery of the central reinforcement piece in a layer stranded mode. At least one optical fiber is arranged in each loose tube. A protection sleeve is arranged on each loose tube in a sleeving mode. A non-metal reinforcement layer is arranged between each protection sleeve and the corresponding loose tube. The optical fibers are silicon dioxide optical fibers with coatings. The loose tubes are made of thermoplastic materials. The gaps in the loose tubes are filled with thixotropic filler. An outer wrapping layer comprises a cable wrapping belt, an inner protection sleeve, a steel tape armoring layer and an outer protection cover from inside to outside, wherein the gap in the cable wrapping belt is filled with polypropylene filler. The intelligent optical fiber composite temperature measurement and transmission medium-voltage cable is simple in structure and low in cost.
Description
Technical field
The present invention relates to power cable technical field, in particular to a kind of Intelligent optical fiber compound thermometric transmission midium voltage cable.
Background technology
Intelligent optical fiber compound thermometric transmission cable is a kind of composite cable for measuring cable temperature field distribution in real time, cable have anti-flaming, explosion-proof, anticorrosive, electromagnetism interference, high pressure resistant, multi-point temperature measurement the advantages such as location real-time can be realized.
By the thermo parameters method residing for optical fiber compound cable for measuring temperature detection fiber, and be transferred to monitor screen, realize the operating monitoring temperature of cable, temperature measuring equipment has design temperature overtemperature alarm, thus can realize cable to greatest extent transmission of electric energy time not overheating operation object, guarantee cable heap(ed) capacity ground transmitting energy and safe operation.
Along with the development of optical fiber technology, the application of optical fiber sensing technology in electrical equipment fault detects will progressively be promoted, wherein Fiber Optic Pyrometer will thoroughly solve puzzlement power equipment run in the difficult problem of overheated monitoring, accurate, real time on-line monitoring and fault pre-alarming to electrical equipment fault heating sensitive part temperature can be realized, accurately locate; Its combination property becomes international most advanced level, has good practical value and promotional value.
Intelligent optical fiber compound thermometric transmission cable is a kind of composite cable for measuring cable temperature field distribution in real time that developed recently gets up, due to cable can have anti-flaming, explosion-proof, anticorrosive, electromagnetism interference, high pressure resistant, multi-point temperature measurement the advantages such as location real-time can be realized, therefore its application is received very extensive.Along with the development of optical fiber technology, the application of optical fiber sensing technology in electrical equipment fault detects will progressively be promoted, wherein Fiber Optic Pyrometer will thoroughly solve puzzlement power equipment run in the difficult problem of overheated monitoring, accurate, real time on-line monitoring and fault pre-alarming to electrical equipment fault heating sensitive part temperature can be realized, accurately locate.
Adopt the disposable input of Intelligent optical fiber compound thermometric transmission cable to increase a little, in cable operational system that but can be long-term afterwards, play the potential that it carries electric current to greatest extent, and ensure the security of operation of cable.By the thermo parameters method residing for optical fiber compound cable for measuring temperature detection fiber, and be transferred to monitor screen, realize the operating monitoring temperature of cable, temperature measuring equipment has design temperature overtemperature alarm, thus can realize cable to greatest extent transmission of electric energy time not overheating operation object, guarantee cable heap(ed) capacity ground transmitting energy and safe operation.
But the Intelligent optical fiber compound thermometric transmission cable production cost used at present is higher, complex structure.
Summary of the invention
Technical problem to be solved by this invention is, provides the Intelligent optical fiber compound thermometric transmission that a kind of structure is simple, cost is low midium voltage cable.
Therefore, technical scheme of the present invention is as follows:
A kind of Intelligent optical fiber compound thermometric transmission midium voltage cable, comprises surrounding layer and the light unit be wrapped in described surrounding layer and Duo Gen insulated cable, wherein:
Described insulated cable comprises conductor wire core and is wrapped in the conductor shield on described conductor wire core, crosslinked polyetylene insulated layer, insulation screen and metal screen layer from inside to outside successively, and the metal screen layer of adjacent insulated cable contacts with each other;
Described smooth unit is stranded optical fiber, comprise central reinforce member and layer strand at many Loose tube of described central reinforce member surrounding, at least one optical fiber is equipped with in every root Loose tube, described Loose tube is also arranged with sheath outward, non-metal reinforced layer is provided with between described sheath and described Loose tube, described optical fiber is the silica optical fiber having coat, described Loose tube is made up of thermoplastic, and the gap in described Loose tube is also filled with thixotropic filler, the Young's modulus of described non-metal reinforced layer is not less than 90Gpa, described sheath is made up of ethlyene dichloride,
Described surrounding layer comprises tape for cables, inner sheath, steel-tape armouring layer and oversheath from inside to outside, is filled with polypropylene filler in the space in described tape for cables.
Described Loose tube is made up of polybutylene terephthalate (PBT).
Described non-metal reinforced layer is made up of aramid fiber yarn.
Intelligent optical fiber compound thermometric transmission midium voltage cable structure in the present invention is simple, and cost is low, can realize long-range to the dynamic monitoring of cable current-carrying thermal effect, and Real-Time Monitoring finds the heat generating spot position of circuit, current-carrying bottleneck position and electric discontinuity of cable position.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Intelligent optical fiber compound thermometric transmission midium voltage cable according to the embodiment of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
As shown in Figure 1, Intelligent optical fiber compound thermometric transmission midium voltage cable according to an embodiment of the invention, comprises surrounding layer 1 and the light unit 2 be wrapped in described surrounding layer 1 and Duo Gen insulated cable 3, wherein:
Described insulated cable 3 comprises conductor wire core 31 and is wrapped in conductor shield 32, crosslinked polyetylene insulated layer 33, insulation screen 34 and the metal screen layer 35 on described conductor wire core 31 from inside to outside successively, and the metal screen layer 35 of adjacent insulated cable 3 contacts with each other;
Described smooth unit 2 is stranded optical fiber, comprise central reinforce member and layer strand at the many Loose tube 22 of described central reinforce member surrounding, at least one optical fiber 21 is equipped with in every root Loose tube 22, described Loose tube 22 is outer is also arranged with sheath 24, non-metal reinforced layer 23 is provided with between described sheath 24 and described Loose tube 22, described optical fiber 21 is for there being the silica optical fiber of coat, described Loose tube 22 is made up of thermoplastic, and the gap in described Loose tube 22 is also filled with thixotropic filler, the Young's modulus of described non-metal reinforced layer 23 is not less than 90Gpa, described sheath 24 is made up of ethlyene dichloride,
Described surrounding layer 1 comprises tape for cables 11, inner sheath 12, steel-tape armouring layer 13 and oversheath 14 from inside to outside, is filled with polypropylene filler 15 in the space in described tape for cables 11.
Wherein, the central reinforce member in light unit 2 is not shown in the drawings, and the part of the unit of light shown in Fig. 12 is closely the schematic diagram of the involved part of a Loose tube 22; In Fig. 1,4 for tearing rope.
In addition, cross-linked polyethylene insulating material temperature resistant grade must between-40 DEG C ~ 90 DEG C, such change bearing day and night temperature, also can use in the winter of the summer of heat and severe cold simultaneously, and should have good electric property and excellent mechanical and physical performance; Gasket for packing is used for filling up room in light unit 2, and its external diameter should make cable core rounding, and gasket for packing should be round plastic rope, and its surface shall be rounded up smooth, also can make gasket for packing with water blocking yarn; Light unit 2 should be positioned at many insulated cables (embodiment shown in Fig. 1 is three) avris, can not be positioned at center.
Described Loose tube 22 is made up of polybutylene terephthalate (PBT).
Described non-metal reinforced layer 23 is made up of aramid fiber yarn.
Intelligent optical fiber compound thermometric transmission midium voltage cable structure in the present invention is simple, and cost is low, can realize long-range to the dynamic monitoring of cable current-carrying thermal effect, and Real-Time Monitoring finds the heat generating spot position of circuit, current-carrying bottleneck position and electric discontinuity of cable position.
In sum, content of the present invention is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present invention, but this embodiment all comprises within the scope of the present invention.
Claims (3)
1. an Intelligent optical fiber compound thermometric transmission midium voltage cable, is characterized in that, comprises surrounding layer (1) and the light unit (2) that is wrapped in described surrounding layer (1) and many insulated cables (3), wherein:
Described insulated cable (3) comprises conductor wire core (31) and is wrapped in the conductor shield (32) on described conductor wire core (31), crosslinked polyetylene insulated layer (33), insulation screen (34) and metal screen layer (35) from inside to outside successively, and the metal screen layer (35) of adjacent insulated cable (3) contacts with each other;
Described smooth unit (2) is stranded optical fiber, comprise central reinforce member and layer strand at the many Loose tube (22) of described central reinforce member surrounding, at least one optical fiber (21) is equipped with in every root Loose tube (22), described Loose tube (22) is also arranged with sheath (24) outward, non-metal reinforced layer (23) is provided with between described sheath (24) and described Loose tube (22), described optical fiber (21) is for there being the silica optical fiber of coat, described Loose tube (22) is made up of thermoplastic, and the gap in described Loose tube (22) is also filled with thixotropic filler, the Young's modulus of described non-metal reinforced layer (23) is not less than 90Gpa, described sheath (24) is made up of ethlyene dichloride,
Described surrounding layer (1) comprises tape for cables (11), inner sheath (12), steel-tape armouring layer (13) and oversheath (14) from inside to outside, is filled with polypropylene filler (15) in the space in described tape for cables (11).
2. Intelligent optical fiber compound thermometric transmission midium voltage cable according to claim 1, it is characterized in that, described Loose tube (22) is made up of polybutylene terephthalate (PBT).
3. Intelligent optical fiber compound thermometric transmission midium voltage cable according to claim 1, it is characterized in that, described non-metal reinforced layer (23) is made up of aramid fiber yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076267.3A CN104616802A (en) | 2015-02-12 | 2015-02-12 | Intelligent optical fiber composite temperature measurement and transmission medium-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076267.3A CN104616802A (en) | 2015-02-12 | 2015-02-12 | Intelligent optical fiber composite temperature measurement and transmission medium-voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104616802A true CN104616802A (en) | 2015-05-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510076267.3A Pending CN104616802A (en) | 2015-02-12 | 2015-02-12 | Intelligent optical fiber composite temperature measurement and transmission medium-voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104616802A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105204134A (en) * | 2015-11-10 | 2015-12-30 | 丁勇 | Heat transfer bridge type direct burial heating temperature measuring optical cable |
| CN107845445A (en) * | 2017-11-27 | 2018-03-27 | 深圳市特发信息股份有限公司 | A kind of optical fiber composite medium-pressure cable and cable In-Line Temperature Measure System |
-
2015
- 2015-02-12 CN CN201510076267.3A patent/CN104616802A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105204134A (en) * | 2015-11-10 | 2015-12-30 | 丁勇 | Heat transfer bridge type direct burial heating temperature measuring optical cable |
| CN105204134B (en) * | 2015-11-10 | 2018-03-09 | 丁勇 | Bridge-type of conducting heat direct-burried heating temperature measuring optical cable |
| CN107845445A (en) * | 2017-11-27 | 2018-03-27 | 深圳市特发信息股份有限公司 | A kind of optical fiber composite medium-pressure cable and cable In-Line Temperature Measure System |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150513 |