CN202582505U - Pipeline optical fiber grating remote automatic early warning device - Google Patents
Pipeline optical fiber grating remote automatic early warning device Download PDFInfo
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- CN202582505U CN202582505U CN 201220255961 CN201220255961U CN202582505U CN 202582505 U CN202582505 U CN 202582505U CN 201220255961 CN201220255961 CN 201220255961 CN 201220255961 U CN201220255961 U CN 201220255961U CN 202582505 U CN202582505 U CN 202582505U
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Abstract
The present utility model provides a pipeline optical fiber grating remote automatic early warning device. The device comprises a remote monitoring server and more than one monitoring units arranged on the monitoring site; the remote monitoring server is connected with each monitoring unit through a communication network; each monitoring unit comprises a communication module, an optical fiber gating demodulation instrument and more than one optical fiber gating strain gauges fixed on the outer surface of a long oil and gas pipeline; each optical fiber gating strain gauge is connected with the optical fiber gating demodulation instrument through an optical cable, and the optical fiber gating demodulation instrument is connected with a communication module. Thus, pipeline deformation data can be accurately collected, transmitted and analyzed, pipe segment with concentrated stress can be rapidly detected, early warning or alarm information can be given out, and monitoring early warning of a pipeline can be realized; Moreover, changing conditions of the geological environment where the pipe segment lies can be judged according to monitoring data generated by the pipeline body, and technical basis can be provided for risk control of geological disasters.
Description
Technical field
The utility model relates to the safety monitoring technology field, is specifically related to a kind of pipeline fiber grating remote auto prior-warning device.
Background technology
Pipe technology has special advantages in conveyings such as oil, rock gas; Along with the exploitation of western hydrocarbon resources and a large amount of buyings of the energy overseas; Like existing Sino-Russian and Sino-Kazakhstan pipeline, pipeline transportation will occupy more and more important position in Chinese national economy.
The running environment of long oil and gas pipeline generally possesses following characteristics: (one) belongs to the medium-pressure or high pressure pipeline, and pumped (conveying) medium is all inflammable and explosive dangerous goods, therefore, pipeline is had strict demand because of the caused distortion of inside and outside load change.(2) be typical long-distance line property engineering; Easily hundreds of thousands of and even up to ten thousand kilometers; And the pipeline route generally all is chosen in meagrely-populated areas such as mountain and hill for the purpose of safety, and therefore, pipeline place environment lacks power supply; Even not having a mobile phone signal, the thunderstorm weather in flood season and extreme high low temperature are comparatively common.(3) pipeline need be embedded in undergroundly, and therefore, pipeline geographical environment of living in is complicated, and especially when geologic hazard takes place, can be to the bigger threat of long oil and gas pipeline generation.
Therefore, the ess-strain of long oil and gas pipeline is carried out monitoring accurately and timely, the deformation extent that makes long oil and gas pipeline in allowed limits, thereby it is significant to prevent that long oil and gas pipeline from leaking.In addition, the pipeline geologic hazard be with geologic hazard and other unfavorable geology environment be cause the calamity body, be a kind of disaster process of hazard-affected body with pipeline body and affiliated facility thereof, can abbreviate pipeline body and affiliated facility thereof as pipeline.Cause the destruction of calamity body to hazard-affected body, generally show as the cumulative function of ess-strain: promptly excessive drawing stress will cause the pipeline drawing crack, and excessive compression stress then causes the flexing of pipeline.The mechanics of materials and structural mechanics are to the variation and the existing clear and definite computing formula of the relation between the pipeline geologic hazard of pipe stress strain; Therefore; Through the situation of change of accurate monitoring pipeline ess-strain, can also effectively predict the geological disaster risk degree of pipeline geographical environment of living in.
But; In the prior art, the long oil and gas pipeline ess-strain of monitoring commonly used is to use resistance strain plate or vibrating string extensometer, still; These two kinds of monitoring technology are often because of reasons such as electric arc, thunderstorm or corrosion fuse, the situation of short circuit and corrosion; Thereby have a strong impact on continuity and stability that the virgin stress strain data is gathered, thereby reduced the monitoring effectiveness of monitoring device, cause the distortion situation that promptly and accurately to know pipeline.
The utility model content
Defective to the prior art existence; The utility model provides a kind of pipeline fiber grating remote auto prior-warning device; Can carry out exact acquisition, transmission and analysis to the pipe deforming data; Fast detecting goes out the pipeline section that stress is concentrated, and sends early warning or warning message, has realized the monitoring and warning to pipeline; And, to the Monitoring Data that pipeline body produces, also can be used to judge the situation of change of this pipeline section geologic media of living in, preventing and treating for the risk of geologic hazard provides technical basis.
The technical scheme that the utility model adopts is following:
The utility model provides a kind of pipeline fiber grating remote auto prior-warning device, comprises the above monitoring means that the remote monitoring server is on-the-spot with being installed in monitoring; Said remote monitoring server is connected with each said monitoring means through communication network; Each said monitoring means includes communication module, fiber Bragg grating (FBG) demodulator and is fixedly mounted on the fiber grating strain meter of long oil and gas pipeline outside surface more than one; Each said fiber grating strain meter is connected with said fiber Bragg grating (FBG) demodulator through optical cable, and said fiber Bragg grating (FBG) demodulator also is connected with said communication module.
Preferably, also comprise: warning device; Said warning device is connected with said remote monitoring server.
Preferably, said warning device is audible alarm unit and/or light warning device.
Preferably, said communication module is wire communication module and/or wireless communication module.
Preferably, said wireless communication module is one or more in GPRS communication module, WCDMA communication module, gsm communication module, the WiFi communication module.
Preferably, said fiber grating strain meter is fixedly connected through the mode that welding and/or magnetic attach with said long oil and gas pipeline outside surface.
Preferably, 5-30 said fiber grating strain meter of said fiber Bragg grating (FBG) demodulator passage serial connection.
Preferably, 16 said fiber grating strain meters of said fiber Bragg grating (FBG) demodulator passage serial connection.
Preferably, also comprise: sealing and fixing is installed in the isolation shell of said long oil and gas pipeline outside surface; Said fiber grating strain meter is arranged on the inside of said isolation shell.
The beneficial effect of the utility model is following:
(1) through the fiber grating strain meter pipe stress strain data is gathered, had the strong advantage of antijamming capability, therefore, the stress-strain data that collects is accurate;
(2) networking of fiber grating strain meter serial connection is realized that multiple spot measures simultaneously, simplified the laying that fiber grating strain is taken into account extension line, avoided the inconvenience of point-to-point measurement in the past;
(3) the remote monitoring server can carry out collective analysis to overall targets such as pipeline axial strain and bending strain variations, judges the safe condition of pipeline, in time issues forecasting and warning;
(4) remote monitoring server and each monitoring means especially can pass through wireless communication through network service, have the simple advantage of wiring, also have data transmission security advantage reliable and with low cost;
(5) fiber Bragg grating (FBG) demodulator passage is connected in series a plurality of fiber grating strain meters, has dwindled the volume of fiber Bragg grating (FBG) demodulator, is convenient to on-the-spot the layout.
Description of drawings
The structural representation of the pipeline fiber grating remote auto prior-warning device that Fig. 1 provides for the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated:
As shown in Figure 1, the utility model provides a kind of pipeline fiber grating remote auto prior-warning device, comprises the above monitoring means that the remote monitoring server is on-the-spot with being installed in monitoring; Said remote monitoring server is connected with each said monitoring means through communication network; Each said monitoring means includes communication module, fiber Bragg grating (FBG) demodulator and is fixedly mounted on the fiber grating strain meter of long oil and gas pipeline outside surface more than one; Each said fiber grating strain meter is electrically connected with said fiber Bragg grating (FBG) demodulator through optical cable, and said fiber Bragg grating (FBG) demodulator also is electrically connected with said communication module.Wherein, the fiber grating strain meter can be fixedly connected through the mode that welding and/or magnetic attach with long oil and gas pipeline outside surface.A passage of fiber Bragg grating (FBG) demodulator can be connected in series 5-30 said fiber grating strain meter, for example: 16.Wherein, the quantity of the fiber grating strain meter of fiber Bragg grating (FBG) demodulator series connection is confirmed according to the length of optical cable and the number of the unfavorable geological condition that passes through.Through this arrangement, can dwindle the volume of fiber Bragg grating (FBG) demodulator, be convenient to on-the-spot the layout.
Because the fiber grating strain meter need be installed in below ground, so, not influenced by soil body extruding for guaranteeing highly sensitive fiber grating strain meter, fiber grating strain meter outside need installs the isolation shell additional.This isolation body seal is fixedly mounted on long oil and gas pipeline outside surface, and has certain rigid, does not move with pipeline external surface and keeps certain distance with the fiber grating strain meter, avoids directly to fiber grating strain meter conduction soil pressure.In the practical application, isolate shell and can adopt stainless steel to improve antiseptic property.
In the utility model, each monitoring means is communicated by letter through communication module with the remote monitoring server, and communication module can be wire communication module and/or wireless communication module.Wherein, wireless communication module is one or more in GPRS communication module, WCDMA communication module, gsm communication module, the WiFi communication module.Because the remote monitoring server operated by rotary motion of long oil and gas pipeline is near the big city of pressing close to the oil gas user; And pipeline laying is outside thousands of kilometers; Therefore adopt wireless communications mode to realize the remote transmission of fiber Bragg grating (FBG) demodulator collection and demodulated data, have with low cost, safe and reliable and the simple advantage that connects up.
The course of work of the pipeline fiber grating remote auto prior-warning device that the utility model provides is:
(1) the fiber Bragg grating (FBG) demodulator internal light source sends continuous broadband light, is transferred to the on-the-spot fiber grating strain meter of laying of monitoring through optical cable;
Use the fiber grating strain meter to carry out the pipeline strain monitoring, compare with the strainometer of other types, the collection of grating wavelength signal can not receive the cloudy current affects of protecting of pipe surface, is beneficial to and uses optical cable to carry out the long range signals transmission; Even if take into full account problem of signal attenuation simultaneously, under the situation that does not adopt signal gain amplifier facility, the distance of using optical cable to carry out the signal transmission also will be several times as much as other data lines of metal material, can reach tens of kilometers.
(2) the inner measurement sensitive element of fiber grating strain meter---fiber grating turns back to the inner detector of fiber Bragg grating (FBG) demodulator to this broadband light corresponding narrow band light of reflected back selectively through same transmission cable; Go out the centre wavelength of the different narrow band light that each fiber grating strain meter returned through measurement detector, thereby parse the stress-strain data of each monitoring point.
Because grating is one section process special processed optical fibers, can reflect particular range, nano level wavelength.When pipeline body generation strain, change attached to the wavelength that grating reflected on the pipeline body thereupon; Therefore, the wavelength data that returns through detection of reflected, and after carrying out analytical calculation, can obtain maximum tensile stress, maximal compressed stress and the maximum stress in bend equal stress index of attachment area.
(3) the fiber Bragg grating (FBG) demodulator above-mentioned stress-strain data that will obtain is transferred to communication module;
(4) communication module is transferred to the remote monitoring server with above-mentioned stress-strain data again;
(5) the remote monitoring server carries out analysis-by-synthesis to the stress-strain data that receives.
In the utility model, the remote monitoring server adopts the two-way communication mode with the on-the-spot fiber grating strain meter of monitoring: promptly: the remote monitoring server can receive the Monitoring Data that field optical fibers grating strain meter is uploaded, and realizes the effect of remote collection; Herewith, the remote monitoring server also can send relevant observing and controlling instruction to on-site data gathering equipment.
Particularly, be example with the communication module for the GPRS module: the COM1 of GPRS module and fiber Bragg grating (FBG) demodulator adopts standard RS-232 communication mode, the communication between realizing mutually with the AT instruction.On-the-spot fiber Bragg grating (FBG) demodulator is in silent status at ordinary times, and the data that only read the fiber grating strain meter in the time period of appointment are with saves energy; When the remote monitoring server had data demand to a certain fiber Bragg grating (FBG) demodulator, unlatching GPRS set up wireless connections and can obtain the data that fiber Bragg grating (FBG) demodulator records.
The built-in dedicated analysis early warning of remote monitoring server software resolution data is analyzed through the Monitoring Data that fiber Bragg grating (FBG) demodulator is uploaded, and generates overall targets such as pipeline axial strain and bending strain variation.According to based on stress or based on the assay means of strain, judge the safe condition of pipeline, in time issue forecasting and warning.Wherein, dedicated analysis early warning software is the full compatible software of the Windows of Microsoft, can be with multitask mode at running background; Can directly move and adopt the SQL mode to realize the global function management at multiple wide area/LAN; Have complete open interface so that third party software connects, and can directly connect general commercial data and graphics software carries out data edition, form and figure online treatment.Dedicated analysis early warning software is described the ess-strain size of pipeline continuously by the time sequence automatically to the Monitoring Data that receives and is distributed; Measured value and preset standard value to receiving compare; Over stress or the concentrated fast pipeline section of stress are issued early warning information automatically, particularly be applicable to the monitoring and warning of this long-distance line property engineering of long oil and gas pipeline; Simultaneously, to the Monitoring Data that pipeline body produces, also can be used to judge the situation of change of this pipeline section geologic media of living in, preventing and treating for the risk of geologic hazard provides technical basis.In the utility model, the type of alarm of employing can also can adopt audible alarm unit and/or light warning device to report to the police for directly pushing warning message to display interface.Certainly, also can send alarming short message to clients such as the mobile phone of appointment or computers through way of short messages.
In sum, the pipeline fiber grating remote auto prior-warning device that provides of the utility model has the following advantages:
(1) through the fiber grating strain meter pipe stress strain data is gathered, had the strong advantage of antijamming capability, therefore, the stress-strain data that collects is accurate;
(2) networking of fiber grating strain meter serial connection is realized that multiple spot measures simultaneously, simplified the laying that fiber grating strain is taken into account extension line, avoided the inconvenience of point-to-point measurement in the past;
(3) the remote monitoring server can carry out collective analysis to overall targets such as pipeline axial strain and bending strain variations, judges the safe condition of pipeline, in time issues forecasting and warning;
(4) remote monitoring server and each monitoring means especially can pass through wireless communication through network service, have the simple advantage of wiring, also have data transmission security advantage reliable and with low cost;
(5) fiber Bragg grating (FBG) demodulator passage is connected in series a plurality of fiber grating strain meters, has dwindled the volume of fiber Bragg grating (FBG) demodulator, is convenient to on-the-spot the layout.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be looked the protection domain of the utility model.
Claims (9)
1. a pipeline fiber grating remote auto prior-warning device is characterized in that, comprises the above monitoring means that the remote monitoring server is on-the-spot with being installed in monitoring; Said remote monitoring server is connected with each said monitoring means through communication network; Each said monitoring means includes communication module, fiber Bragg grating (FBG) demodulator and is fixedly mounted on the fiber grating strain meter of long oil and gas pipeline outside surface more than one; Each said fiber grating strain meter is connected with said fiber Bragg grating (FBG) demodulator through optical cable, and said fiber Bragg grating (FBG) demodulator also is connected with said communication module.
2. pipeline fiber grating remote auto prior-warning device according to claim 1 is characterized in that, also comprises: warning device; Said warning device is connected with said remote monitoring server.
3. pipeline fiber grating remote auto prior-warning device according to claim 2 is characterized in that said warning device is audible alarm unit and/or light warning device.
4. pipeline fiber grating remote auto prior-warning device according to claim 1 is characterized in that said communication module is wire communication module and/or wireless communication module.
5. pipeline fiber grating remote auto prior-warning device according to claim 4 is characterized in that said wireless communication module is one or more in GPRS communication module, WCDMA communication module, gsm communication module, the WiFi communication module.
6. pipeline fiber grating remote auto prior-warning device according to claim 1 is characterized in that, said fiber grating strain meter is fixedly connected through the mode that welding and/or magnetic attach with said long oil and gas pipeline outside surface.
7. pipeline fiber grating remote auto prior-warning device according to claim 1 is characterized in that, 5-30 said fiber grating strain meter of a passage serial connection of said fiber Bragg grating (FBG) demodulator.
8. pipeline fiber grating remote auto prior-warning device according to claim 7 is characterized in that, 16 said fiber grating strain meters of a passage serial connection of said fiber Bragg grating (FBG) demodulator.
9. pipeline fiber grating remote auto prior-warning device according to claim 1 is characterized in that also comprise: sealing and fixing is installed in the isolation shell of said long oil and gas pipeline outside surface; Said fiber grating strain meter is arranged on the inside of said isolation shell.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255961 CN202582505U (en) | 2012-06-01 | 2012-06-01 | Pipeline optical fiber grating remote automatic early warning device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220255961 CN202582505U (en) | 2012-06-01 | 2012-06-01 | Pipeline optical fiber grating remote automatic early warning device |
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| CN202582505U true CN202582505U (en) | 2012-12-05 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103453844A (en) * | 2013-09-25 | 2013-12-18 | 天津亿利科能源科技发展股份有限公司 | Flexible pipeline deformation online monitoring method based on fiber bragg grating |
| CN103927834A (en) * | 2014-05-04 | 2014-07-16 | 李素贞 | Underground pipeline perimeter intrusion early warning system |
| CN104613318A (en) * | 2013-11-05 | 2015-05-13 | 中国石油化工股份有限公司 | Online monitoring method for tunnel internal pipeline |
| CN104613885A (en) * | 2013-11-05 | 2015-05-13 | 中国石油化工股份有限公司 | Tunnel pipeline monitoring and early warning system |
| CN106705854A (en) * | 2017-03-08 | 2017-05-24 | 武汉理工大学 | Pipeline longitudinal crack detection device and method based on fiber grating sensing |
| CN108007370A (en) * | 2017-10-24 | 2018-05-08 | 重庆建工第三建设有限责任公司 | A kind of fiber Bragg grating strain sensor installs monitoring system |
| CN111765386A (en) * | 2020-07-09 | 2020-10-13 | 观云(山东)智能科技有限公司 | Distributed real-time health monitoring system and method for pipeline structure |
| CN113008146A (en) * | 2021-02-26 | 2021-06-22 | 深圳大学 | Optical fiber sensing device, pipeline corrosion monitoring system and method |
| CN113865498A (en) * | 2021-09-07 | 2021-12-31 | 天津大学 | Deep water pipeline damage monitoring method based on fiber bragg grating sensing |
-
2012
- 2012-06-01 CN CN 201220255961 patent/CN202582505U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453844A (en) * | 2013-09-25 | 2013-12-18 | 天津亿利科能源科技发展股份有限公司 | Flexible pipeline deformation online monitoring method based on fiber bragg grating |
| CN104613885B (en) * | 2013-11-05 | 2018-06-15 | 中国石油化工股份有限公司 | A kind of tunnel interior conduit monitoring and warning system |
| CN104613318A (en) * | 2013-11-05 | 2015-05-13 | 中国石油化工股份有限公司 | Online monitoring method for tunnel internal pipeline |
| CN104613885A (en) * | 2013-11-05 | 2015-05-13 | 中国石油化工股份有限公司 | Tunnel pipeline monitoring and early warning system |
| CN103927834A (en) * | 2014-05-04 | 2014-07-16 | 李素贞 | Underground pipeline perimeter intrusion early warning system |
| CN106705854A (en) * | 2017-03-08 | 2017-05-24 | 武汉理工大学 | Pipeline longitudinal crack detection device and method based on fiber grating sensing |
| CN106705854B (en) * | 2017-03-08 | 2019-04-30 | 武汉理工大学 | A kind of pipeline longitudinal crack detection device and method based on optical fiber grating sensing |
| CN108007370A (en) * | 2017-10-24 | 2018-05-08 | 重庆建工第三建设有限责任公司 | A kind of fiber Bragg grating strain sensor installs monitoring system |
| CN111765386A (en) * | 2020-07-09 | 2020-10-13 | 观云(山东)智能科技有限公司 | Distributed real-time health monitoring system and method for pipeline structure |
| CN111765386B (en) * | 2020-07-09 | 2022-08-26 | 观云(山东)智能科技有限公司 | Distributed real-time health monitoring system and method for pipeline structure |
| CN113008146A (en) * | 2021-02-26 | 2021-06-22 | 深圳大学 | Optical fiber sensing device, pipeline corrosion monitoring system and method |
| CN113865498A (en) * | 2021-09-07 | 2021-12-31 | 天津大学 | Deep water pipeline damage monitoring method based on fiber bragg grating sensing |
| CN113865498B (en) * | 2021-09-07 | 2023-09-05 | 天津大学 | Deepwater pipeline damage monitoring method based on fiber bragg grating sensing |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pipeline optical fiber grating remote automatic early warning device Effective date of registration: 20181019 Granted publication date: 20121205 Pledgee: Beijing good faith financing Company limited by guarantee Pledgor: Ke Li Huaan, Beijing monitoring technology for geological hazards company limited Registration number: 2018990000982 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200922 Granted publication date: 20121205 Pledgee: Beijing good faith financing Company limited by guarantee Pledgor: BEIJING KELI HUA'AN GEOLOGICAL DISASTER MONITORING TECHNOLOGY Co.,Ltd. Registration number: 2018990000982 |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |