CN203536069U - Cold resistant self-temperature-measurement cable - Google Patents
Cold resistant self-temperature-measurement cable Download PDFInfo
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- CN203536069U CN203536069U CN201320644738.2U CN201320644738U CN203536069U CN 203536069 U CN203536069 U CN 203536069U CN 201320644738 U CN201320644738 U CN 201320644738U CN 203536069 U CN203536069 U CN 203536069U
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- cable
- temperature
- grating
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- optical fiber
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Abstract
The utility model relates to a cold resistant self-temperature-measurement cable which is composed of carbon fiber conductors, insulating layers, an inner jacket, an outer sheath and an outer protection layer. Each carbon fiber conductor is covered by an insulating layer to form a cable core. A plurality of cable cores are tightly wrapped by the inner jacket. The outer sheath is disposed outside the inner jacket. The outer protection layer is disposed outside the outer sheath. An optical unit is disposed in the gap among the cable cores and the inner jacket. The optical unit includes multiple optical fibers, wherein at least one optical fiber is an optical grating fiber provided with a temperature measurement optical grating in an etched manner. The beneficial effects are that the code resistant self-temperature-measurement cable has certain cold resistance, can not only perform communication but also monitor the temperature of the cable in real time.
Description
Technical field
The utility model belongs to control cables field, specifically a kind of cold-resistant from cable for measuring temperature.
Background technology
Due to Chinese northern area very cold the duration long, under such temperature conditions, the designing requirement of control cables is had to strict demand, if general control cables is used for a long time under the environment of low temperature, cable easily breaks down.
In addition, occurred now photoelectric compound cable, had optical fiber communication function and electric power transfer function, can realize the transmission of various control signals, network signal and electric power, adaptation telecommunications network, Broadcasting Cable Network, the Internet, power network are netted the use needs of fusion more.But this photoelectric compound cable temperature rise situation that is in operation cannot be monitored, easily occur 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 prior art, provides a kind of can be under low temperature environment long-term use and oversheath and insulating barrier can keep the control cables of superperformance.
The utility model solves the technical scheme that its technical problem adopts:
Cold-resistant from a cable for measuring temperature, it is characterized in that, by carbon fiber conductor, insulating barrier, inner cushion layer, oversheath, external protection, formed; Carbon fiber guiding body coated outside insulating barrier and is formed cable core, and several cables core are wrapped by inner cushion layer closely, and inner cushion layer outside is oversheath, and oversheath outside is external protection; In space between described cable core and inner cushion layer, be provided with a light unit, 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.
The beneficial effects of the utility model are: conductor of the present utility model is to adopt carbon fibre composite to make, and carbon fibre composite can produce certain heat when conduction, and heat can be transmitted to outer field oversheath, and heat can play certain anti-cold 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 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, of the present utility model cold-resistant from cable for measuring temperature, by carbon fiber conductor 1, insulating barrier 2, inner cushion layer 4, oversheath 7, external protection 6, formed; Carbon fiber conductor 1 coated outside insulating barrier 2 and is formed cable core 3, and several cables core 3 are wrapped by inner cushion layer 4 closely, and inner cushion layer 4 outsides are oversheaths 7, and oversheath 7 outsides are external protections 6.
In space between described cable core 3 and inner cushion layer 4, be provided with a light unit 5, 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. cold-resistant from a cable for measuring temperature, it is characterized in that, by carbon fiber conductor, insulating barrier, inner cushion layer, oversheath, external protection, formed; Carbon fiber guiding body coated outside insulating barrier and is formed cable core, and several cables core are wrapped by inner cushion layer closely, and inner cushion layer outside is oversheath, and oversheath outside is external protection; In space between described cable core and inner cushion layer, be provided with a light unit, 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 |
|---|---|---|---|
| CN201320644738.2U CN203536069U (en) | 2013-10-19 | 2013-10-19 | Cold resistant self-temperature-measurement cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320644738.2U CN203536069U (en) | 2013-10-19 | 2013-10-19 | Cold resistant self-temperature-measurement cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536069U true CN203536069U (en) | 2014-04-09 |
Family
ID=50422251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320644738.2U Expired - Fee Related CN203536069U (en) | 2013-10-19 | 2013-10-19 | Cold resistant self-temperature-measurement cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536069U (en) |
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2013
- 2013-10-19 CN CN201320644738.2U patent/CN203536069U/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: 20161019 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |