CN203536048U - Self-temperature-measuring mineral insulating fireproof optical fiber composite cable - Google Patents
Self-temperature-measuring mineral insulating fireproof optical fiber composite cable Download PDFInfo
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- CN203536048U CN203536048U CN201320593108.7U CN201320593108U CN203536048U CN 203536048 U CN203536048 U CN 203536048U CN 201320593108 U CN201320593108 U CN 201320593108U CN 203536048 U CN203536048 U CN 203536048U
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- Prior art keywords
- cable
- optical fiber
- conductor
- grating
- temperature
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 33
- 239000002131 composite material Substances 0.000 title claims abstract description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 title abstract 3
- 239000011707 mineral Substances 0.000 title abstract 3
- 239000004020 conductor Substances 0.000 claims abstract description 29
- 239000000835 fiber Substances 0.000 claims abstract description 14
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 6
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000004888 barrier function Effects 0.000 claims description 12
- 229910052755 nonmetal Inorganic materials 0.000 claims description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 23
- 229910052802 copper Inorganic materials 0.000 abstract description 23
- 239000010949 copper Substances 0.000 abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 abstract description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 16
- 239000004411 aluminium Substances 0.000 abstract description 14
- 238000004891 communication Methods 0.000 abstract description 12
- 239000004033 plastic Substances 0.000 abstract description 7
- 229920003023 plastic Polymers 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 abstract description 2
- 239000011810 insulating material Substances 0.000 abstract 2
- 229910000881 Cu alloy Inorganic materials 0.000 abstract 1
- 238000009529 body temperature measurement Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 101150012579 ADSL gene Proteins 0.000 description 2
- 102100020775 Adenylosuccinate lyase Human genes 0.000 description 2
- 108700040193 Adenylosuccinate lyases Proteins 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 2
- 206010034960 Photophobia Diseases 0.000 description 1
- 238000001069 Raman spectroscopy Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 208000013469 light sensitivity Diseases 0.000 description 1
- 239000000382 optic material Substances 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a self-temperature-measuring mineral insulating fireproof optical fiber composite cable. The cable comprises a cable conductor, an insulating layer and a metal sheath. The cable conductor uses copper alloy as a conductor, and the metal sheath is arranged outside the cable conductor. The insulating layer is filled between the cable conductor and the metal sheath. The insulating layer uses nonflammable high-temperature-resistant magnesium oxide as insulating material. The cable further comprises an optical unit composed a plurality of optical fibers at least one of which is a grating fiber written with a temperature measuring grating. The beneficial effects of the utility model are that the copper resource is saved, so that the cable is low in cost; the magnesium oxide mineral is used as the insulating material, so that the cable has high insulativity and high flame resistance; the outermost jacket is a plastic jacket, having good anticorrosion properties; the metal sheath adopts a seamless aluminium pipe, having good bendability; besides, the cable can be used for normal electric power transmission, communication, as well as self temperature measurement.
Description
Technical field
The utility model relates to electric wire field, relates in particular to a kind of from thermometric mineral-insulated fireproof optical fiber composite cable.
Background technology
Along with the development of China's economic construction, the continuous growth of electricity needs, cable is also increasing as the demand of the carrier of delivery of electrical energy.But existing cable, such as conventional organic cable (plastic cable), there is defect in its insulation property, such as the easy defect such as aging, non-refractory of plastic insulating layer; Conventional steel reinforced aluminium conductor, its electric property, wire performance are bad.
China is in 50～seventies of last century, and copper is as strategic resource, and the state basic policy of electrical applications aspect is exactly " with aluminium for copper ", and copper cable can not be used in civil buildings, and the cable conductor using is mostly electrician's fine aluminium conductor; To the mid-80, aluminium conductor cable problem in use comes out, especially the oxidation of aluminum conductor joint causes a lot of fire etc. that rise, and copper, aluminium price difference were little at that time, in addition copper conductor, in the superiority of the aspect of performance such as electric, mechanical, durable, becomes gradually and take copper as main in application; To 90 later years, multinomial national standard, standard also require to adopt copper cable in civil buildings, and aluminium conductor is basic just not to have been adopted.But recent years, particularly since 2005, the copper metal price ascensional range of international market is very large.Since 2005; copper increases to 9000 beautiful yuan/ton from 2000 beautiful yuan/ton; the economic crisis of 2008; make again copper valency fall and get back to 3000 beautiful yuan/ton from 9000 beautiful yuan/ton; yet 2009, copper valency increased to 8000 beautiful yuan/ton from 3000 U.S.s yuan/ton again, in by the end of December, 2010; World Copper valency records high again, and copper valency per ton is over 9500 dollars.The pressure expanding along with national currency in recent years increases suddenly, and copper valency also has strong up-trend, and copper product shared cost in copper cable reaches more than 70%, and the price of copper cable is also being risen at the sound, thereby causes user's input cost significantly to increase.In the face of continuous soaring copper valency, and following unpredictalbe upward price trend, many clients start to select cheap aluminium cable.Because aluminium is very high at natural content, the price of aluminum current material is equivalent to 1/3rd left and right of copper.Not only aspect raw material supply, there is advantage, at manufacture view, the cable of a same length, required aluminium important also lighter than copper, generally can light 30-50%, therefore, in whole transportation and installation process, also for client, has brought the effect of energy-conserving and environment-protective.With existing market situation, see, with " aluminium ", for copper, become again inevitable choice.
In addition, existing wire can not be realized communication function, also needs separately to establish a communication line and could meet communication function, causes and repeats wiring.The temperature rise situation that is in operation cannot be monitored, and easily occurs to cause the phenomenon of whole cable bad because electrical lead load increase causes to heat up.
Summary of the invention
Technical problem to be solved in the utility model is the above-mentioned defect that overcomes cable in prior art, provides a kind of from thermometric mineral-insulated fireproof optical fiber composite cable.
The utility model solves the technical scheme that its technical problem adopts:
From a thermometric mineral-insulated fireproof optical fiber composite cable, it is characterized in that, comprise cable conductor, insulating barrier and metallic sheath; Described cable conductor is to make conductor by aluminium alloy, and described metallic sheath is positioned at outside cable conductor, fills described insulating barrier between described cable conductor and metallic sheath, and described insulating barrier employing is not burnt, resistant to elevated temperatures magnesium oxide is made insulation material; Also include a light unit, described smooth unit is contained in described insulating barrier; Described light unit comprises multifiber and the loose sleeve pipe, non-metal reinforced layer and the sheath that set gradually from inside to outside, described loose casing pipe sleeve is outside described optical fiber, in described loose sleeve pipe, fill full dry type water-blocking material, in described non-metal reinforced layer, be provided with many equally distributed water blocking yarns, between described non-metal reinforced layer and described sheath, be embedded with and tear rope; At least one optical fiber, for inscribing the grating fibers that has thermometric grating, forms a grating point for measuring temperature at interval of predetermined distance on grating fibers, and predetermined distance is 300-500 rice.
Further, described metallic sheath is seamless aluminium tubing.
Further, at described metallic sheath, oversheath is set outward, described oversheath is plastic protective layer.
The beneficial effects of the utility model are: by aluminium alloy, make conductor, saved copper resource, cost is low; Employing is not burnt, the magnesium oxide of high temperature resistant (2800 ℃) is made insulation material, and it insulate, fire protecting performance will be higher than common rubber or plastic insulating layer; At ragged edge oversheath, plastics outer jacket, has good Anticorrosive Character; Adopt seamless aluminium tubing to make metallic sheath, have good bendability; In addition, not only can conduct electricity, can also realize optical fiber communication.
In actual production as use cable of the present utility model, both normal transmission of electric energy, can carry out communication again, can also self carry out temperature survey.So just saved the equipment such as ADSL, OPGW that increase for power communication, also can reduce because the accidents such as the thunderbolt that OPGW causes threaten.Can also save in addition the very expensive GPS wire temperature measuring equipment of use of taking in current work, save huge cost.When the circuit using cable of the present utility model as transferring electric power, staff can directly determine according to described traverse survey the actual bearer situation of circuit to line temperature.
The utility model to strengthening wire on-line monitoring, grasp variations in temperature, improve wire transmission capacity, reduce line loss, improve safe operation of electric network, increase communication backup, solve comprehensive communication plan etc. aspect and all show and provide large economic benefit and social benefit, especially in country instantly, in building controlling the trend of environment-friendly type, economical society, more demonstrate powerful realistic meaning with all strength.
Accompanying drawing explanation
Fig. 1 is cross sectional representation of the present utility model;
Fig. 2 is the cross sectional representation of light unit in the utility model.
Embodiment
As shown in Figure 1, a kind of from thermometric mineral-insulated fireproof optical fiber composite cable, comprise cable conductor 1, insulating barrier 2 and metallic sheath 3; Described cable conductor 1 is to make conductor by aluminium alloy, and described metallic sheath 3 is positioned at outside cable conductor 1, fills described insulating barrier 2 between described cable conductor 1 and metallic sheath 3, and described insulating barrier employing is not burnt, resistant to elevated temperatures magnesium oxide is made insulation material; Also include a light unit 5, described smooth unit is contained in described insulating barrier 2; Described metallic sheath 3 is seamless aluminium tubings.At the outer oversheath 4 that arranges of described metallic sheath 3, described oversheath 4 is plastic protective layers.
As shown in Figure 2, described light unit 5 comprises multifiber 51 and the loose sleeve pipe 52 setting gradually from inside to outside, non-metal reinforced layer 53 and sheath 54, pine sleeve pipe 52 is enclosed within outside optical fiber 51, the full dry type water-blocking material 55 of the interior filling of pine sleeve pipe 52, in non-metal reinforced layer 53, be provided with many equally distributed water blocking yarns 56, between non-metal reinforced layer 53 and sheath 54, be embedded with and tear rope 57.At least one optical fiber, for inscribing the grating fibers that has thermometric grating, forms a grating point for measuring temperature at interval of predetermined distance on grating fibers, and predetermined distance is 300-500 rice.
The utility model adopts the method for directly making imprinting grating on optical fiber to carry out the manufacture of thermometric conductor.With the grating fibers that optical fiber imprinting becomes, be the light sensitivity of utilizing fiber optic materials, by special processing mode, make to form space phase grating in fibre core, the local mirror surface that forms an arrowband, forms reflection to the light of specific wavelength.When the temperature of optical fiber changes, the surrounding of grating can change along with expanding with heat and contract with cold of optical fiber, and this changes can change reflection wavelength, by measuring catoptrical wavelength change, just can measure the optical fiber temperature sensor of grating present position.Equally, by measuring catoptrical delay, the position that can learn grating.Here it is utilizes the principle of grating fibers thermometric.
The mode of directly carving grating does not produce supplementary load loss, can not affect measuring distance, and this production method is better than the production method of welding.The grating fibers thermometric mode becoming by optical fiber imprinting is owing to being special optical fiber targetedly, and reflected signal is strong, therefore the transmitting power of equipment and receiving sensitivity are required all lower than Raman, to reflect thermometric mode, and the good stability of equipment.The benefit of simultaneously bringing is far measuring distance, and measuring distance can be more than 100km, and certainty of measurement is in ± 2 ℃.
On at least one optical fiber in these optical fiber, inscribe grating, in the position of setting, inscribe grating, by the temperature sensor of utilizing emitted light signal measurement diverse location grating.Here it is has realized and has utilized grating fibers thermometric.The utility model does not need the continuous temperature of measuring whole piece circuit to distribute, can select every 300～500 meters of measurement points, or strengthen distribution optical grating point in sag minimum point, and select the thermometric mode monitoring circuit variations in temperature of grating fibers, can by the temperature of grasping, adjust defeated biography capacity at any time.Preferably, can select 300 meters, 400 meters, the 500 meters spacing distances as adjacent point for measuring temperature.
According to a specific embodiment of the present utility model, inside, light unit is installed with 24 optical fiber, on 8 optical fiber in these 24 optical fiber, inscribes grating.15 gratings of imprinting all on every in these 8 optical fiber, i.e. totally 15 points for measuring temperature on every.In this embodiment, use 16 optical fiber in 24 optical fiber to carry out communication, utilize 8 imprintings in 24 optical fiber to have the optical fiber of grating to carry out thermometric.Facts have proved, the method can reach good effect.
In actual production as use cable of the present utility model, both normal transmission of electric energy, can carry out communication again, can also self carry out temperature survey.So just saved the equipment such as ADSL, OPGW that increase for power communication, also can reduce because the accidents such as the thunderbolt that OPGW causes threaten.Can also save in addition the very expensive GPS wire temperature measuring equipment of use of taking in current work, save huge cost.When the circuit using cable of the present utility model as transferring electric power, staff can directly determine according to the line temperature measuring the actual bearer situation of circuit.
Claims (1)
1. from a thermometric mineral-insulated fireproof optical fiber composite cable, it is characterized in that, comprise cable conductor, insulating barrier and metallic sheath; Described cable conductor is to make conductor by aluminium alloy, and described metallic sheath is positioned at outside cable conductor, fills described insulating barrier between described cable conductor and metallic sheath, and described insulating barrier employing is not burnt, resistant to elevated temperatures magnesium oxide is made insulation material; Also include a light unit, described smooth unit is contained in described insulating barrier; Described light unit comprises multifiber and the loose sleeve pipe, non-metal reinforced layer and the sheath that set gradually from inside to outside, described loose casing pipe sleeve is outside described optical fiber, in described loose sleeve pipe, fill full dry type water-blocking material, in described non-metal reinforced layer, be provided with many equally distributed water blocking yarns, between described non-metal reinforced layer and described sheath, be embedded with and tear rope; At least one optical fiber, for inscribing the grating fibers that has thermometric grating, forms a grating point for measuring temperature at interval of predetermined distance on grating fibers, and predetermined distance is 300-500 rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320593108.7U CN203536048U (en) | 2013-09-25 | 2013-09-25 | Self-temperature-measuring mineral insulating fireproof optical fiber composite cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320593108.7U CN203536048U (en) | 2013-09-25 | 2013-09-25 | Self-temperature-measuring mineral insulating fireproof optical fiber composite cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536048U true CN203536048U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320593108.7U Expired - Fee Related CN203536048U (en) | 2013-09-25 | 2013-09-25 | Self-temperature-measuring mineral insulating fireproof optical fiber composite cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536048U (en) |
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2013
- 2013-09-25 CN CN201320593108.7U patent/CN203536048U/en not_active Expired - Fee Related
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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: 20140409 Termination date: 20140925 |
|
| EXPY | Termination of patent right or utility model |