CN203868703U - Pipeline monitoring system based on meshed optical fiber sensor - Google Patents
Pipeline monitoring system based on meshed optical fiber sensor Download PDFInfo
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- CN203868703U CN203868703U CN201420270741.7U CN201420270741U CN203868703U CN 203868703 U CN203868703 U CN 203868703U CN 201420270741 U CN201420270741 U CN 201420270741U CN 203868703 U CN203868703 U CN 203868703U
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- optical fiber
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- coupler
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Abstract
The utility model discloses an underground pipeline leakage monitoring system based on a meshed optical fiber sensor. The pipeline monitoring system comprises an underground pipeline, a sensing optical fiber, an optical pulse generator, a coupler and an optical spectrum analysis instrument, wherein the sensing optical fiber is sleeved with isolation sleeves in a sectioned mode, the sensing optical fiber in the isolation sleeves is an isolation optical fiber, the sensing monitoring function of the isolation optical fiber is shielded by the isolation sleeves, and the portion, between every two adjacent isolation sleeves, of the sensing optical fiber is an effective sensing optical fiber which can monitor the underground pipeline in real time. The sensing optical fiber undergoes meshed processing, so that whole-line monitoring of the distributed optical fiber is changed into meshed optical fiber sensor monitoring, set point monitoring and selected point monitoring are achieved, the probability of misinformation is reduced to a certain extent, the fault range can be divided according to monitoring data, interference of external environment to sensing optical fiber detection pipeline information is reduced and monitoring quality of the sensing optical fiber is improved.
Description
Technical field
The utility model relates to a kind of pepe monitoring system, particularly relates to a kind of pepe monitoring system based on gridding optical fiber transducer, for to underground pipe leakage situation real time on-line monitoring, realizes accurate automatic early-warning.
Background technique
Along with the raising of social economy and living standards of the people, various buildings are more and more, the under ground pipings such as pipeline, electric wire and communication optical cable such as the water supporting with it, electricity, warm, combustion gas extend everywhere underground, therefore, the Security of under ground piping is pith very important in urban construction.
The leakage that existing various buried pipeline causes because of a variety of causes and booster all can be realized intelligent online monitoring by the distribution type fiber-optic of burying underground at Near Pipelines, the signal that it can measure any point at sensor fibre place, can carry out continuously, monitor completely the peripheral information of its paving location.But, distribution type fiber-optic is applied in underground utility safety guarantee automatic monitoring system and exists certain defect, that is: because distribution type fiber-optic can be monitored completely, be that each point can carry out sensing, crossing over area extensively, in the application that the indefinite underground utility of construction environment are monitored, the too responsive characteristic of distribution type fiber-optic is easy to cause the generation of the situation of reporting by mistake, different paving locations, the data variation that different underground environments all can cause distributing optical fiber sensing to go out is unstable, not only cannot determine whether generation accident, and cannot locate exactly place where the accident occurred point.
Model utility content
The utility model overcomes the deficiency that prior art exists, technical problem to be solved is for providing a kind of pepe monitoring system based on gridding optical fiber transducer, by sensor fibre is carried out to gridding processing, reduce external environment detects underground pipeline information interference to sensor fibre, improve the monitoring quality of sensor fibre.
To achieve these goals, the utility model adopts following technological scheme:
Based on a pepe monitoring system for gridding optical fiber transducer, comprise under ground piping
And sensor fibre, described sensor fibre is used for described under ground piping Real-Time Monitoring, and described pepe monitoring system also comprises optical pulse generator, Coupler and optical spectrum analyzers; The output terminal of optical pulse generator is connected with the input end of Coupler, and the output terminal of Coupler is connected with optical spectrum analyzers, and another output terminal of Coupler is connected with sensor fibre simultaneously; Described optical pulse generator provides light source for sensor fibre, and described optical spectrum analyzers receives the induction spectrum of sensor fibre, and analyzes; In described sensor fibre outside, the sheathed disrance sleeve of segmentation, the sensor fibre that is positioned at described disrance sleeve is isolation optical fiber, its sensor monitoring function is shielded by described disrance sleeve, sensor fibre between adjacent described disrance sleeve is effective sensor fibre, can Real-Time Monitoring under ground piping.
As further improvement of the utility model, described sensor fibre and under ground piping are buried underground with ditch.
As further improvement of the utility model, described pepe monitoring system also comprises isolator, and the output terminal of described optical pulse generator is connected with the input end of described isolator, and the output terminal of described isolator is connected with the input end of described Coupler.
As further improvement of the utility model, described pepe monitoring system also comprises remote monitoring and alarm terminal, and described optical spectrum analyzers is connected with alarm terminal with described remote monitoring by wired or wireless mode.
Adopt the pepe monitoring system based on gridding optical fiber transducer of the present utility model, by sensor fibre is carried out to gridding processing, make all fronts monitoring of distribution type fiber-optic become the monitoring of gridding optical fiber transducer, set point monitoring, Chosen Point monitoring are realized, not only reduce to a certain extent the probability of wrong report, can also delimit fault coverage by monitored data, reduce the interference of external environment to sensor fibre detection duct size information, improve the monitoring quality of sensor fibre.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated:
Fig. 1 is the structural relation schematic diagram between the utility model under ground piping, sensor fibre, disrance sleeve.
Fig. 2 is the electrical block diagram of the utility model pepe monitoring system.
In figure: 1: under ground piping; 2: sensor fibre; 21: isolation optical fiber; 22: effectively sensor fibre; 3: disrance sleeve; 4: optical pulse generator; 5: isolator; 6: Coupler; 7: optical spectrum analyzers; 8: remote monitoring and alarm terminal.
Embodiment
below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
?as shown in Figure 1, a kind of pepe monitoring system based on gridding optical fiber transducer, the sensor fibre 2 that comprises under ground piping 1 and bury underground with ditch with under ground piping 1, the sensed parameter of sensor fibre 2 and installation position can need to select according to practical application, and the present embodiment is not restricted this.For example, in the time that under ground piping 1 is oil transport pipeline, can below oil transport pipeline, walk abreast and lay one or more sensor fibre 2, sensor fibre 2 can be warming optical fiber or pressure sensing optical fiber or vibrating sensing optical fiber etc., utilize sensor fibre 2 as sensor, the information such as the temperature of detection oil transport pipeline; In the time that under ground piping 1 is gas pipeline, sensor fibre 2 can be also gas sensing optical fiber, is laid in the top of gas pipeline.
At the input end of under ground piping 1, optical pulse generator 4, isolator 5, Coupler 6 and optical spectrum analyzers 7 are set.The output terminal of optical pulse generator 4 is connected with the input end of isolator 5, the output terminal of isolator 5 is connected with the input end of Coupler 6, the output terminal of Coupler 6 is connected with optical spectrum analyzers 7, another output terminal of Coupler 6 is connected with sensor fibre 2 simultaneously, and optical spectrum analyzers 7 is connected with alarm terminal 8 with remote monitoring by wired or wireless mode.Described optical pulse generator 4 provides light source for sensor fibre 2, and described optical spectrum analyzers 7 receives the induction spectrum of sensor fibre 2, and analyzes.
The difference of the utility model and prior art is, the sheathed disrance sleeve 3 at a certain distance in sensor fibre 2 outsides, the sensor fibre 2 that is positioned at disrance sleeve 3 cannot sense the relevant informations such as the temperature of under ground piping 1, and we are referred to as to isolate optical fiber 21; Sensor fibre between adjacent disrance sleeve 3 still can sense the relevant informations such as the temperature of under ground piping 1, thereby realizes Real-Time Monitoring, and we are referred to as effective sensor fibre 22.By the mode of this overcoat disrance sleeve 3, because the length of disrance sleeve 3 can be set, the length of the effective sensor fibre 22 between adjacent disrance sleeve 3 also can be set with actual demand, so just make all fronts monitoring of distribution type fiber-optic become the monitoring of gridding optical fiber transducer, set point monitoring, Chosen Point monitoring are realized, reduce external environment detects underground pipeline information interference to sensor fibre, not only reduce to a certain extent the probability of wrong report, can also delimit fault coverage by monitored data.
The material of disrance sleeve 3 should be according to the information of the concrete induction of sensor fibre 2 and respective settings.For example, when sensor fibre 2 is warming optical fiber, when detecting the temperature information of under ground piping 1, the material of disrance sleeve 3 should have good thermal insulation effect.
Claims (4)
1. the pepe monitoring system based on gridding optical fiber transducer, comprises under ground piping
And sensor fibre (2), described sensor fibre (2) is for to described under ground piping (1) Real-Time Monitoring, and described pepe monitoring system also comprises optical pulse generator (4), Coupler (6) and optical spectrum analyzers (7); The output terminal of optical pulse generator (4) is connected with the input end of Coupler (6), and the output terminal of Coupler (6) is connected with optical spectrum analyzers (7), and another output terminal of Coupler (6) is connected with sensor fibre (2) simultaneously; Described optical pulse generator (4) provides light source for sensor fibre (2), and described optical spectrum analyzers (7) receives the induction spectrum of sensor fibre (2), and analyzes;
It is characterized in that: in described sensor fibre (2) outside, the sheathed disrance sleeve of segmentation (3), the sensor fibre (2) that is positioned at described disrance sleeve (3) is isolation optical fiber (21), its sensor monitoring function is shielded by described disrance sleeve (3), sensor fibre (2) between adjacent described disrance sleeve (3) is effective sensor fibre (22), can Real-Time Monitoring under ground piping (1).
2. the monitoring of the pipeline based on gridding optical fiber transducer according to claim 1 is
System, is characterized in that: described sensor fibre (2) is buried underground with ditch with under ground piping (1).
3. the monitoring of the pipeline based on gridding optical fiber transducer according to claim 1 is
System, is characterized in that: also comprise isolator (5), the output terminal of described optical pulse generator (4) is connected with the input end of described isolator (5), and the output terminal of described isolator (5) is connected with the input end of described Coupler (6).
4. the monitoring of the pipeline based on gridding optical fiber transducer according to claim 1 is
System, is characterized in that: also comprise remote monitoring and alarm terminal (8), described optical spectrum analyzers (7) is connected with alarm terminal (8) with described remote monitoring by wired or wireless mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270741.7U CN203868703U (en) | 2014-05-26 | 2014-05-26 | Pipeline monitoring system based on meshed optical fiber sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270741.7U CN203868703U (en) | 2014-05-26 | 2014-05-26 | Pipeline monitoring system based on meshed optical fiber sensor |
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| CN203868703U true CN203868703U (en) | 2014-10-08 |
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| CN201420270741.7U Expired - Fee Related CN203868703U (en) | 2014-05-26 | 2014-05-26 | Pipeline monitoring system based on meshed optical fiber sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968257A (en) * | 2014-05-26 | 2014-08-06 | 青岛厚科化学有限公司 | Pipeline monitoring system based on meshing optical fiber sensor and method of pipeline monitoring system |
| CN113781749A (en) * | 2021-09-09 | 2021-12-10 | 太原理工大学 | Underground pipe gallery internal pipeline leakage positioning and early warning device, system and method |
| CN114234055A (en) * | 2021-12-28 | 2022-03-25 | 国家石油天然气管网集团有限公司 | Oil and gas pipeline optical fiber vibration alarm signal rechecking method and system |
-
2014
- 2014-05-26 CN CN201420270741.7U patent/CN203868703U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968257A (en) * | 2014-05-26 | 2014-08-06 | 青岛厚科化学有限公司 | Pipeline monitoring system based on meshing optical fiber sensor and method of pipeline monitoring system |
| CN103968257B (en) * | 2014-05-26 | 2017-02-15 | 青岛厚科化学有限公司 | Pipeline monitoring system based on meshing optical fiber sensor and method of pipeline monitoring system |
| CN113781749A (en) * | 2021-09-09 | 2021-12-10 | 太原理工大学 | Underground pipe gallery internal pipeline leakage positioning and early warning device, system and method |
| CN114234055A (en) * | 2021-12-28 | 2022-03-25 | 国家石油天然气管网集团有限公司 | Oil and gas pipeline optical fiber vibration alarm signal rechecking method and system |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20141008 Termination date: 20210526 |
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| CF01 | Termination of patent right due to non-payment of annual fee |