CN207424326U - For the sensed communication composite cable of underground utilities security protection and communication - Google Patents
For the sensed communication composite cable of underground utilities security protection and communication Download PDFInfo
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- CN207424326U CN207424326U CN201721427651.4U CN201721427651U CN207424326U CN 207424326 U CN207424326 U CN 207424326U CN 201721427651 U CN201721427651 U CN 201721427651U CN 207424326 U CN207424326 U CN 207424326U
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- 238000004891 communication Methods 0.000 title claims abstract description 50
- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 64
- 239000013307 optical fiber Substances 0.000 claims abstract description 57
- 239000006071 cream Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 description 14
- 238000012544 monitoring process Methods 0.000 description 12
- 229920002725 thermoplastic elastomer Polymers 0.000 description 7
- 230000006698 induction Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000007774 longterm Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 229920006231 aramid fiber Polymers 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000011551 heat transfer agent Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Light Guides In General And Applications Therefor (AREA)
- Examining Or Testing Airtightness (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model discloses a kind of sensed communication composite cable for underground utilities security protection and communication, including sheath and the cable core that is placed in sheath, wherein, the cable core includes：The telecommunication optical fiber for communication positioned at center；Uniformly kink multiple sensor fibres for sensing in telecommunication optical fiber periphery；The cable cream being filled in the gap between telecommunication optical fiber, sensor fibre and sheath.The sensed communication composite cable of the utility model, not only can guarantee sensing requirements, but also disclosure satisfy that communicating requirement, and senses and stablize with communication performance, suitable for underground utilities.
Description
Technical field
The utility model is related to optical cable technology fields more particularly to a kind of sensing for underground utilities security protection and communication to lead to
Believe composite cable.
Background technology
Pipeline is in During Process of Long-term Operation, since burn into geography being subject to construct with climate change, pipeline and artificially
The influence of the factors such as destruction, pipe leakage happen occasionally.Pipe leakage not only results in heavy economic losses and environmental pollution, and
And it is also possible to that huge threat will be caused to the lives and properties and living environment of people.Therefore jeopardize what is occurred along pipeline
The event of pipe safety is found in time and positioning has important practical significance.At present, monitored for oil-gas pipeline safety usual
There are many technological means, i.e.,：Satellite monitoring, unmanned plane monitoring, manual inspection, pressure monitoring and optical fiber sensing monitoring etc., these
Method has the characteristics of respective.At present, optical fiber sensing monitoring is relatively properly applied to the safe early warning of pipeline in above-mentioned technological means
With leakage monitoring.
The safe early warnings of underground utilities and leak detection are that one sufficiently complex and difficult task, according to previous experiences,
Except Fibre Optical Sensor monitoring host computer will have excellent performance in addition to, sensing optic cable be in entire detection system critical component it
One, its type selecting plays an important role to pipe safety prewarning and leakage monitoring system.
Under normal conditions, Near Pipelines are all embedded with communications optical cable, and the purposes of this optical cable is mainly used for communication and equipment
Work state information transfers.Basic principle during conventional communications optical cable design be make the same external action of optical fiber (temperature, external force,
Vibration, wet damp environment etc.) isolation, particularly stress isolation, thus there are one " ess-strain window ", i.e., optical cable is certain
Optical fiber therein is not stressed from without straining in range of strain, it is desirable to which influence of the extraneous stress to optical cable is smaller more
It is good.
At present, optical fiber sensing monitoring system mostly using common communications optical cable as sensing optic cable, at the beginning of the design of this optical cable
Inner feelings primary and foremost purpose is to communicate, and does not account for Application in Sensing；Sensing optic cable then require to allow it is external some or certain it is several
It is sensitive by heat transfer agent, it is better to extraneous stress more sensitivity, and the optical fiber in cable is passed in real time, the design with communications optical cable
Original intention is opposite, it is clear that general communication optical cable is not very good for distributed sensing system.
Pipeline safety defense monitoring system has distributed fiberoptic sensor particular/special requirement, particularly after pipe leakage, in pipe
Medium can generate friction with pipeline leakage hole wall, and stress wave (leaking acoustic emission signal) is inspired in tube wall, and pipeline is made to generate shake
It is dynamic, but also have acoustic wave segment and propagate in air, this two parts is worked together on the optical fiber of Near Pipelines, vibrations frequency
Rate can reach ultrasonic wave range (more than 100KHz), and faint variation all occurs for the length and refractive index for making optical fiber, causes in optical fiber
The guide-lighting phase of propagation is modulated, this proposes severe challenge to fibre optical sensor frequency response bandwidth performance.
In the prior art, mostly using communications optical cable as sensing optic cable in long distance line monitoring system so that monitoring
The performance of host cannot give full play of, and in some complex environments under the conditions of, system performance is wanted it is possible that design is not achieved
It asks or even pipeline incident of leakage can not be detected.Although can alarm sometimes, invasion or incident of leakage position can not be determined by being present with
It puts；Sometimes it is also possible to occurring unstable or even be present with the serious problems that system cannot position with seasonal variations system performance.
It for this purpose, a special optical cable of R ＆ D design, not only can guarantee that sensing was used, but also disclosure satisfy that the purpose of communication, become
Communication field technical staff's problem to be solved.
The content of the invention
The purpose of this utility model is exactly to solve the above-mentioned problems, to provide a kind of for underground utilities security protection and communication
Sensed communication composite cable not only can guarantee sensing requirements, but also disclosure satisfy that communicating requirement, and senses and stablize with communication performance,
Suitable for underground utilities.
To realize the above-mentioned purpose of the utility model, the sensing for underground utilities security protection and communication of the utility model is led to
Believe composite cable, including sheath and the cable core being placed in sheath, wherein, the cable core includes：It is used to communicate positioned at center
Telecommunication optical fiber；Uniformly kink multiple sensor fibres for sensing in telecommunication optical fiber periphery；It is filled in telecommunication optical fiber, sensing
Cable cream in gap between optical fiber and sheath.
Wherein, the sensor fibre includes：Tight tube fiber；The enhancement layer being coated on outside tight tube fiber；It is coated on enhancement layer
Outer sub- cable sheath；Wherein, the tight tube fiber includes the cated fibre core of at least one tool and to be coated on tool cated
Hard-pressed bale material layer outside fibre core.
Preferably, the hard-pressed bale material layer is made of thermoplastic elastomer (TPE).
Preferably, the enhancement layer is made of aramid fiber.
Further, further include be arranged on the telecommunication optical fiber periphery and interval be placed in it is more between neighboring sensor optical fiber
A gasket for packing.
Preferably, the telecommunication optical fiber includes：Beam tube；It is placed in the multiple fibre cores being distributed in beam tube and circumferentially；Filling
Fiber paste between beam tube and multiple fibre cores；Wherein, the beam tube is the beam tube made of stainless steel material.
Preferably, the sheath includes：It is coated on the waterstop of cable cream periphery；It is coated on the organdy of waterstop periphery
Layer；It is coated on the steel band of glass yarn layer outer wall；It is coated on the oversheath of steel band outer wall.
Compared with prior art, the utility model has for the sensed communication composite cable of underground utilities security protection and communication
It has the following advantages：
1st, the composite cable of the utility model embodiment not only can guarantee that sensing was used, but also disclosure satisfy that the purpose of communication, simultaneous
Tool communication and the double action of sensing, meet the requirement of underground utilities security protection and communication.
2nd, the composite cable of the utility model embodiment, cable core include the telecommunication optical fiber for communication, the telecommunication optical fiber
The center of cable core is arranged at, is constrained in beam tube, is around surrounded by sensor fibre, and with fiber paste outside beam tube, so that logical
Believe that optical fiber is relatively low to extraneous stress induction, meets communicating requirement.
3rd, the composite cable of the utility model embodiment, cable core are included for the sensor fibre of sensing, the sensor fibre
It uniformly kinks in telecommunication optical fiber periphery, is directly contacted with sheath, therefore, sensor fibre is very quick to extraneous stress and Vibration induction
Sense, meets sensing requirements.
4th, the composite cable of the utility model embodiment, sensor fibre are uniformly placed around telecommunication optical fiber, and with being filled in
Cable cream compatibility between sensor fibre, telecommunication optical fiber and sheath is good, so as to ensure that the quality for the composite cable to be formed is long-term
Stablize, service life is long.
The utility model is described in detail below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the utility model embodiment for the transversal of the sensed communication composite cable of underground utilities security protection and communication
Face sectional view；
Fig. 2 is the sectional view of the tight tube fiber of the utility model embodiment.
Specific embodiment
As shown in Figure 1, it is answered for the sensed communication for underground utilities security protection and communication that the utility model embodiment provides
The cross section view of closing light cable, as seen from the figure, the sensed communication composite cable of the utility model include sheath and are placed in shield
Cable core in set, wherein, cable core includes：The telecommunication optical fiber for communication positioned at center；Uniformly kink in telecommunication optical fiber periphery
For sensing multiple sensor fibres；The cable cream being filled in the gap between telecommunication optical fiber, sensor fibre and sheath.
Specifically, the center of the present embodiment cable core is the telecommunication optical fiber for being used to implement communication function, which includes：
Beam tube 10；It is placed in the multiple fibre cores 12 being distributed in beam tube 10 and circumferentially；It is filled between beam tube 10 and multiple fibre cores 12
Fiber paste 11；Preferably, beam tube 10 is the beam tube made of stainless steel material.
Compared with telecommunication optical fiber of the prior art is using the beam tube made of nonmetallic materials, due to the beam of the present embodiment
Pipe is made of stainless steel material, and therefore, tensile strength higher can strengthen the intensity of telecommunication optical fiber, in addition, the present embodiment is logical
Letter optical fiber is arranged at the center of cable core, is constrained in stainless steel beam tube, is around surrounded by sensor fibre, and outside beam tube,
Filled with fiber paste in all gaps in sheath so that the telecommunication optical fiber of the present embodiment to extraneous stress induction relatively
Low, communication performance is stablized, and meets communicating requirement.
Wherein, the present embodiment cable core is also uniformly distributed multiple sensor fibres around telecommunication optical fiber, and sensor fibre includes：Tightly
Unjacketed optical fiber 3；The enhancement layer 2 being coated on outside tight tube fiber 3, it is preferred that enhancement layer 2 is made of aramid fiber material；It is coated on enhancement layer 2
Outer sub- cable sheath 1.Wherein, tight tube fiber 3 includes the cated fibre core of at least one tool and is coated on the cated fibre of tool
Hard-pressed bale material layer outside core.
Preferably, the tight tube fiber 3 of the present embodiment uses structure as shown in Figure 2, for the tight tube fiber 3 with twin-core,
It includes：In one layer of coating 14 of each 13 outer cladding of fibre core, it is outer with painting to it to be coated on one for a pair of of fibre core 13 of located side by side
Hard-pressed bale material layer 14 outside the fibre core 13 of layer, which is made of thermoplastic elastomer (TPE), such as thermoplastic elastomer (TPE) TPE systems
Into the after-contraction by 14 hard-pressed bale fibre core 13 of hard-pressed bale material layer is small, meets the environment temperature requirement in underground piping use.
The sensor fibre of the present embodiment is uniformly kinked in telecommunication optical fiber periphery, and all gaps between sheath are filled out by cable cream
It fills, sensor fibre has good compatibility with cable cream, it is ensured that the composite cable quality of the present embodiment is steady in a long-term, separately
Outside, the sensor fibre of the present embodiment is directly contacted with sheath so that sensor fibre is very quick to the sensing of extraneous stress and vibrations
Sense can detect pipe leakage or intrusion event in time, and performance is stablized, and meets sensing requirements.
It should be noted that according to provided around telecommunication optical fiber sensor fibre quantity, determine the structure of cable core.If
The quantity of sensor fibre provided around telecommunication optical fiber is more, can surround telecommunication optical fiber, such as uses the biography of six or more
Photosensitive fibre, and six sensor fibres connect surround telecommunication optical fiber of outer rim two-by-two, then without be set between neighboring sensor optical fiber
Put other elements such as gasket for packing；Otherwise, then multiple gasket for packings 4, each gasket for packing 4 need to be set in the space of telecommunication optical fiber periphery
Interval is placed between two adjacent sensor fibres, as shown in Figure 1, according to three sensor fibres, then in adjacent pair
One gasket for packing 4 is set between sensor fibre, i.e. is separated two neighboring sensor fibre using three gasket for packings 4.
Wherein, the sheath of the present embodiment includes：It is coated on the waterstop 9 of cable cream periphery；It is coated on the glass of 9 periphery of waterstop
Glass yarn layer 8；It is coated on the Clad Steel band 7 of glass yarn layer outer wall；It is coated on the oversheath 6 of 7 outer wall of Clad Steel band.Sheath blocks water
Band, oversheath can be made of the material of the prior art.
Compared with prior art, the utility model has for the sensed communication composite cable of underground utilities security protection and communication
It has the following advantages：
1st, the composite cable of the utility model embodiment, cable core include telecommunication optical fiber and sensor fibre, both can guarantee sensing
It is used, and disclosure satisfy that the purpose of communication, have both communication and the double action of sensing, meet underground utilities security protection and what is communicated wants
It asks.
2nd, the composite cable of the utility model embodiment, cable core include the telecommunication optical fiber for communication, the telecommunication optical fiber
The center of cable core is arranged at, is constrained in beam tube, is around surrounded by sensor fibre, and with fiber paste outside beam tube, so that logical
Believe that optical fiber is relatively low to extraneous stress induction, meets communicating requirement.
3rd, the composite cable of the utility model embodiment, cable core are included for the sensor fibre of sensing, the sensor fibre
It uniformly kinks in telecommunication optical fiber periphery, is directly contacted with sheath, therefore, sensor fibre is very quick to extraneous stress and Vibration induction
Sense, to shaking the non-constant width of frequency response induction range, optical fiber attenuation value is small, meets sensing requirements.
4th, the composite cable of the utility model embodiment, sensor fibre are uniformly placed around telecommunication optical fiber, and with being filled in
Cable cream compatibility between sensor fibre, telecommunication optical fiber and sheath is good, so as to ensure that the quality for the composite cable to be formed is long-term
Stablize, and possess mouse bite preventing and anti-static function.
5th, the composite cable of the utility model embodiment, the beam tube of the center portion thereof position is using stainless steel, except with guarantor
It protects outside the effect of telecommunication optical fiber, also acts as the effect of central rib, there is stronger tensile capacity, service life is long, meets
Actual requirement of engineering.
Although being explained in detail above to the utility model, the utility model is without being limited thereto, the skill of the art
Art personnel can be modified with principle according to the present utility model, and therefore, all principles according to the utility model carry out various
Modification all should be understood to fall into the scope of protection of the utility model.
Claims (5)
1. a kind of sensed communication composite cable for underground utilities security protection and communication, including sheath and the cable being placed in sheath
Core, which is characterized in that the cable core includes：
The telecommunication optical fiber for communication positioned at center；
Uniformly kink multiple sensor fibres for sensing in telecommunication optical fiber periphery；
The cable cream being filled in the gap between telecommunication optical fiber, sensor fibre and sheath.
2. sensed communication composite cable according to claim 1, which is characterized in that the sensor fibre includes：
Tight tube fiber；
The enhancement layer being coated on outside tight tube fiber；
The sub- cable sheath being coated on outside enhancement layer；
Wherein, the tight tube fiber includes the cated fibre core of at least one tool and is coated on tight outside the cated fibre core of tool
Packet material layers.
3. sensed communication composite cable according to claim 1 or 2, which is characterized in that further include and be arranged on the communication
Optical fiber periphery and interval are placed in multiple gasket for packings between neighboring sensor optical fiber.
4. sensed communication composite cable according to claim 1, which is characterized in that the telecommunication optical fiber includes：
Beam tube；
It is placed in the multiple fibre cores being distributed in beam tube and circumferentially；
The fiber paste being filled between beam tube and multiple fibre cores；
Wherein, the beam tube is the beam tube made of stainless steel material.
5. sensed communication composite cable according to claim 1, which is characterized in that the sheath includes：
It is coated on the waterstop of cable cream periphery；
It is coated on the glass yarn layer of waterstop periphery；
It is coated on the steel band of glass yarn layer outer wall；
It is coated on the oversheath of steel band outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721427651.4U CN207424326U (en) | 2017-10-31 | 2017-10-31 | For the sensed communication composite cable of underground utilities security protection and communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721427651.4U CN207424326U (en) | 2017-10-31 | 2017-10-31 | For the sensed communication composite cable of underground utilities security protection and communication |
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| Publication Number | Publication Date |
|---|---|
| CN207424326U true CN207424326U (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721427651.4U Active CN207424326U (en) | 2017-10-31 | 2017-10-31 | For the sensed communication composite cable of underground utilities security protection and communication |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124322A (en) * | 2019-12-31 | 2021-07-16 | 北京裕荣众联科技有限公司 | Natural gas pipeline ice blockage positioning method and system |
| EP4024106A1 (en) | 2020-12-31 | 2022-07-06 | Prysmian S.p.A. | Multisensing optical fiber cable |
| CN116661079A (en) * | 2023-07-26 | 2023-08-29 | 江苏中天科技股份有限公司 | Sensing optical cable |
-
2017
- 2017-10-31 CN CN201721427651.4U patent/CN207424326U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124322A (en) * | 2019-12-31 | 2021-07-16 | 北京裕荣众联科技有限公司 | Natural gas pipeline ice blockage positioning method and system |
| CN113124322B (en) * | 2019-12-31 | 2022-07-12 | 北京裕荣众联科技有限公司 | Natural gas pipeline ice blockage positioning method and system |
| EP4024106A1 (en) | 2020-12-31 | 2022-07-06 | Prysmian S.p.A. | Multisensing optical fiber cable |
| US11714245B2 (en) | 2020-12-31 | 2023-08-01 | Prysmian S.P.A. | Multisensing optical fiber cable |
| CN116661079A (en) * | 2023-07-26 | 2023-08-29 | 江苏中天科技股份有限公司 | Sensing optical cable |
| CN116661079B (en) * | 2023-07-26 | 2023-10-31 | 江苏中天科技股份有限公司 | Sensing optical cable |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 100101 Beijing city Chaoyang District Datun Road No. 9 Patentee after: National Pipe Network Group Beijing Pipeline Co.,Ltd. Patentee after: BEIJING YURONGZHONGLIAN TECHNOLOGY Co.,Ltd. Address before: 100101 9 Datun Road, Chaoyang District, Beijing Patentee before: PETROCHINA BEIJING GAS PIPELINE Co.,Ltd. Patentee before: BEIJING YURONGZHONGLIAN TECHNOLOGY Co.,Ltd. |