CN103438359A - Oil pipeline leakage detection and positioning system - Google Patents

Oil pipeline leakage detection and positioning system Download PDF

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Publication number
CN103438359A
CN103438359A CN2013103387384A CN201310338738A CN103438359A CN 103438359 A CN103438359 A CN 103438359A CN 2013103387384 A CN2013103387384 A CN 2013103387384A CN 201310338738 A CN201310338738 A CN 201310338738A CN 103438359 A CN103438359 A CN 103438359A
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module
gsm
detects
navigation system
data acquisition
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CN2013103387384A
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毛振刚
毛芳芳
毛佳玮
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毛振刚
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Abstract

The invention discloses an oil pipeline leakage detection and positioning system, which is mainly and technically characterized in that the system comprises a data acquisition module, a signal conditioning module, a data processing and analysis module, a sound-light alarm module, a display module, a GPS (Global Positioning System) module, a GSM (Global System for Mobile Communications) module, a GPRS (General Packet Radio Service) network and a monitoring center, the data acquisition module comprises a pressure transmitter, an infrasonic wave sensor and a flowmeter, the signal conditioning module comprises a current/voltage conversion module, a counting module and an analog filter module, the data processing and analysis module comprises a controller, the data acquisition module is connected with the signal conditioning module, the signal conditioning module is connected with the data processing and analysis module, the sound-light alarm module, the display module, the GPS module and the GSM module are connected with the data processing and analysis module, and the GSM module is connected with the monitoring center through the GPRS network. The oil pipeline leakage detection and positioning system has the advantages that the leakage detection sensitivity is high, the real-time performance is strong, the positioning accuracy is high and the cable resources are greatly saved.

Description

Pipeline Leak detects and navigation system
Technical field
The invention belongs to pipe monitoring systems technology field, especially a kind of Pipeline Leak detects and navigation system.
Background technique
Pipeline transport is the important channel that crude oil in China is carried, and due to a large amount of crude oil pipelines, by meagrely-populated desert, marsh or seabed, the Pipeline Leak detection technique is the important topic of current petrochemical industry research.Due to burn into geological disaster and the factor such as artificial, the accident that often has pipe leakage occurs, and brings very large hidden danger to the safe operation of oil transport pipeline.In recent years, the Pipeline Leak accident constantly occurs, national economy has been caused to huge loss, personnel's injury and environmental pollution, set up pipeline leakage checking system, the scope of promptly and accurately report accident and degree, can reduce to greatest extent economic loss and environmental pollution, this just requires Oil Pipeline Leakage Detecting System to have following fundamental characteristics: the sensitivity of Leak testtion, real-time, the accuracy of location.
In order to detect in time the leakage situation of pipeline, reduce economic loss, hit criminal simultaneously, once studying many methods is both at home and abroad monitored, but effect is all undesirable, as direct observational method, carry detecting instrument equipment or trained animal segmentation is carried out Leak testtion and location to pipeline by experienced technician, by seeing, hear, listen or other modes have judged whether to leak and occur, these class methods have the characteristics of the rate of false alarm that setting accuracy is high and lower, but can not find in time to leak the carrying out that detection can only be interrupted; The flow equilibrium method, this is based on the law of indestructibility of matter, under normal circumstances, the entry end flow should equal the outlet end flow, when occurring to leak, rate of discharge just is less than inlet flow rate, and the method is only applicable to large flow and leaks situation, the location Calculation of leakage formula is in theory also arranged, but do not have in practice successful Application; The pressure difference method, just be based on law of conservation of energy, and under normal circumstances, the poor definite value that should be of inlet pressure and outlet pressure, if larger variation has occurred pressure difference, in the middle of the explanation, leakage has occurred, but the method can not be carried out the leak source location; Stress wave, the stress wave of propagating along tube wall caused while utilizing fluid leakage judges leakage and orientation, but due to stress wave too a little less than, detect very difficult; Probe method in pipe, survey ball and put into pipeline from an end in managing, go downstream, and utilize ultrasonic technology or electromagnetic technique etc. to gather tube wall information, from the other end, take out and carry out data analysis and process.The cost of the method is high, tight to the pipeline conditional request, can not long-time continuous detect, thereby can not find in real time situation and process in time;
Traditional detection and localization method, because precision is lower, cause the searching inefficiency of leakage point.The existing negative pressure wave method that utilizes realizes that Pipeline Leak detects and positioning device, process control machine is used in the collection of on-the-spot Operational Limits, not only expensive, safeguard inconvenience, and transmission means adopts telephone network or industrial bus, capital increases operating expenses, is not suitable for actual Pipeline Leak from far-off regions and detects.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of Pipeline Leak based on GPRS network to detect and navigation system, native system can automatic correcting time, can realize higher positioning precision, adopt wireless data communication mode, save a large amount of cable resources, and can realize detection and the location of the pipe leakage point in remote districts or even depopulated zone.
The present invention solves its technical problem and takes following technological scheme to realize:
A kind of Pipeline Leak detects and navigation system, its technical characteristics is: comprise data acquisition module, the signal condition module, the Data Management Analysis module, the acoustooptic alarm module, display modular, GPS global location module, gsm module, GPRS network and Surveillance center, described data acquisition module comprises pressure transmitter, infrasonic sensor and flowmeter, described signal condition module comprises the current/voltage conversion module, counting module, analog filter block, described Data Management Analysis module comprises controller, described data acquisition module connects the signal condition module, described signal condition module connection data Treatment Analysis module, described acoustooptic alarm module, display modular, GPS global location module and gsm module connection data Treatment Analysis module, described gsm module connects Surveillance center by GPRS network.
And described signal condition module also comprises gain adjustment module and power module.
And described controller comprises CPU and rechargeable lithium battery cell.
And, module when described GPS global location module comprises the GPS school.
And described Surveillance center comprises gsm module, PC and printer.
And described gsm module comprises GSM BBP, GSM radio-frequency module, flash memory, ZIF connector and antenna connector, and the ZIF connector connects the SIM card reader, antenna connector connection antenna.
Advantage of the present invention and good effect are:
1, the present invention utilizes the method that the correlation analysis theory is detected and locates pipe leakage in conjunction with negative pressure wave method, the method does not need to understand in detail pipe interior fluid shape, do not need to set up the mathematical model of the normal and fault state of pipeline, also without the pressure variation discontinuity that artificially from pressure history, gets on and determine end points, avoid personal error, improved greatly the positioning precision of system.
2, the suction wave location technology that the present invention adopts has very fast speed of response and higher positioning precision, can detect rapidly paroxysmal leakage, and automaticity is high, and positioning principle is simple, applicability is stronger.In native system, utilize GPS global location module that each monitoring station system be take to universal time during as basic school, to reduce each system clock cumulative error and by the time base different and system deviation brought.
3, the present invention is reasonable in design, provide a kind of Pipeline Leak based on GPRS network to detect and navigation system, native system can automatic correcting time, can realize higher positioning precision, adopt wireless data communication mode, save a large amount of cable resources, and can realize detection and the location of the pipe leakage point in remote districts or even depopulated zone.
The accompanying drawing explanation
Fig. 1 is system architecture diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is further described:
A kind of Pipeline Leak detects and navigation system, its technical characteristics is: comprise data acquisition module, the signal condition module, the Data Management Analysis module, the acoustooptic alarm module, display modular, GPS global location module, gsm module, GPRS network and Surveillance center, described data acquisition module comprises pressure transmitter, infrasonic sensor and flowmeter, described signal condition module comprises the current/voltage conversion module, counting module, analog filter block, described Data Management Analysis module comprises controller, described data acquisition module connects the signal condition module, described signal condition module connection data Treatment Analysis module, described acoustooptic alarm module, display modular, GPS global location module and gsm module connection data Treatment Analysis module, described gsm module connects Surveillance center by GPRS network.Described signal condition module also comprises gain adjustment module and power module; Described controller comprises CPU and rechargeable lithium battery cell; Module when described GPS global location module comprises the GPS school; Described Surveillance center comprises gsm module, PC and printer; Described gsm module comprises GSM BBP, GSM radio-frequency module, flash memory, ZIF connector and antenna connector, and the ZIF connector connects the SIM card reader, antenna connector connection antenna.
In conjunction with Fig. 1, set forth working principle of the present invention:
When transport pipe occurs to leak, in pipeline, oil body runs off rapidly under the effect of inside and outside differential pressure, can cause this oil body pressure decreased in pipeline.The pressure of oil body between the zone on leakage point and the both sides that are adjacent produces difference, and cause the area of low pressure at the high pressure oil direction of flow leakage point place in zone, the adjacent upstream and downstream of leakage point, from and cause and leakage point adjacent area oil body density reduces and pressure decreased, this phenomenon from leakage point along pipeline successively roam all around the would up and down to diffusion, form suction wave.Along in the suction wave of pipe transmmision, including reveal information.As long as can capture at pipe ends setting pressure transmitter the suction wave that comprises leakage information, just can detect the generation of leakage, and adopt the signal correction processing method to carry out leak judgement and leak location according to the time difference that the suction wave leak produced propagates into pipe ends.
In order to guarantee the synchronous of pipeline head and end data acquisition time, the real-time that data are processed, the positioning precision of raising Leak testtion, native system adopts the GPS technology real time correction first and last end system for computer time.
Data acquisition module is installed on surveyed oil transport pipeline wall, realizes collection and storage to Operational Limitss such as pressure, flow and temperature, according to the variation of Operational Limits, judges that whether Operational Limits is abnormal, and the data transmission of realization and Surveillance center.
Data acquisition ability, the conduit running pressure value, temperature and the flow that to obtain field instrument, provide; Signal from field instrument or sensor output is carried out to signal condition, carry out the requirement of signal analysis, processing to meet follow-up system; Carry out code book ground and process, complete performance analysis and warning work; To Surveillance center's data analysis supervisory system, provide the suction wave location the required pressure with high time precision sign, temperature and flux signal; As the industrial control equipment of long-time running, system has the characteristics of low power consumption, high reliability; Possess real-time clock and time calibration mechanism; Possesses the data backup memory function.
The signal condition module mainly comprises current/voltage conversion module, counting module, analog filter block, gain adjustment module and power module.On-the-spot primary instrument, as the DC current signal that is 4-20mA of pressure transmitter, temperature transmitter output, process conveniently for subsequent conditioning circuit, and current signal is changed into to voltage signal through the current/voltage conversion module; The flowmeter output signal is pulse signal, and native system adopts the isolation counter, utilizes serial communication output flow information.
Analog filter block, objective factor due to operating mode scene and system itself, inevitably contain a large amount of noises in signal, designed filtering system in system for this reason, comprise anti-aliasing analog filtering, the digital filtering and the extraction that combine with the A/D conversion method of sampling.
Gain adjustment module, signal, after analog device filtering, generally need to be done compensation to insertion loss, for taking full advantage of follow-up modulus switching device, has added the gain adjusting circuit consisted of amplifier in system simultaneously.For the reliability that improves system and the low merit design that realizes module whole, adopt the supply module of high efficiency switch power as system in system.
The gsm wireless module is comprised of gsm module and peripheral circuit thereof.Gsm module, be connected respectively SIM card reader and antenna by the ZIF connector with antenna connector.Gsm module mainly is comprised of GSM BBP, GSM radio-frequency module, supply module, flash memory, ZIF connector, antenna connector.
Module when GPS global location module comprises the GPS school, the pipeline leakage positioning method based on the suction wave algorithm, require pipe monitoring station processing system that identical time base is arranged, so that acquisition time is carried out to mark.In the time of in native system, base comes from the inside real-time clock of controller, and its error after 1 day may reach 1 second, and in the real work application, this may bring the positioning error of 1 km left and right, mechanism in the time of therefore should setting up school.When method during school, common strange land can adopt GPS global location module to carry out school, to eliminate the Accumulated deviation of system timing.GPS global location module, the work satellite of utilization uninterruptedly send time and ephemeris information.The user can utilize integrated receiver to receive these information, during with the local location of completion system and school.In native system, utilize GPS global location module that each monitoring station system be take to universal time during as basic school, to reduce each system clock cumulative error and by the time base different and system deviation brought.
It is emphasized that; embodiment of the present invention is illustrative; rather than determinate; therefore the present invention is not limited to the embodiment described in embodiment; every other mode of executions that drawn by those skilled in the art's technological scheme according to the present invention, belong to the scope of protection of the invention equally.

Claims (6)

1. a Pipeline Leak detects and navigation system, its technical characteristics is: comprise data acquisition module, the signal condition module, the Data Management Analysis module, the acoustooptic alarm module, display modular, GPS global location module, gsm module, GPRS network and Surveillance center, described data acquisition module comprises pressure transmitter, infrasonic sensor and flowmeter, described signal condition module comprises the current/voltage conversion module, counting module, analog filter block, described Data Management Analysis module comprises controller, described data acquisition module connects the signal condition module, described signal condition module connection data Treatment Analysis module, described acoustooptic alarm module, display modular, GPS global location module and gsm module connection data Treatment Analysis module, described gsm module connects Surveillance center by GPRS network.
2. Pipeline Leak according to claim 1 detects and navigation system, and it is characterized in that: described signal condition module also comprises gain adjustment module and power module.
3. Pipeline Leak according to claim 1 detects and navigation system, and it is characterized in that: described controller comprises CPU and rechargeable lithium battery cell.
4. Pipeline Leak according to claim 1 detects and navigation system, it is characterized in that: module when described GPS global location module comprises the GPS school.
5. Pipeline Leak according to claim 1 detects and navigation system, and it is characterized in that: described Surveillance center comprises gsm module, PC and printer.
6. Pipeline Leak according to claim 1 detects and navigation system, it is characterized in that: described gsm module comprises GSM BBP, GSM radio-frequency module, flash memory, ZIF connector and antenna connector, and the ZIF connector connects the SIM card reader, antenna connector connects antenna.
CN2013103387384A 2013-08-06 2013-08-06 Oil pipeline leakage detection and positioning system Pending CN103438359A (en)

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106054764A (en) * 2016-06-14 2016-10-26 沈阳怡森环保科技有限公司 Environment protection online data real-time collection and analysis system and use method
CN106090631A (en) * 2016-08-17 2016-11-09 渤海大学 A kind of long oil pipeline road leak detecting device and detection method
CN106123109A (en) * 2016-08-05 2016-11-16 倪晨钧 A kind of pepe monitoring system
WO2018040730A1 (en) * 2016-08-31 2018-03-08 哈尔滨圣昌科技开发有限公司 Pipe network monitoring control system and monitoring control method achieved by using this system
CN108180398A (en) * 2017-12-28 2018-06-19 北京市燃气集团有限责任公司 A kind of anti-damage from third-party detection method of gas pipeline and detecting system
CN108488638A (en) * 2018-03-28 2018-09-04 东北大学 Line leakage system and method based on sound wave suction wave hybrid monitoring
CN108980637A (en) * 2018-07-12 2018-12-11 北京目黑科技有限公司 A kind of pipe leakage monitoring system and monitoring method
CN109140239A (en) * 2018-08-31 2019-01-04 深圳市纯水号水处理科技有限公司 A kind of pipeline pressure intelligence prior-warning device
CN109357167A (en) * 2018-10-30 2019-02-19 长春市万易科技有限公司 A kind of gas pipeline device for detecting leak point and detection method
CN109708009A (en) * 2019-01-25 2019-05-03 安徽泽众安全科技有限公司 A kind of device and method for the positioning of water supply line difference water leakage
CN109780450A (en) * 2019-03-12 2019-05-21 中海石油气电集团有限责任公司 The Intelligent electric drainage device and method of pipeline monitored by infrasonic wave supplementary AC stray electrical current
CN110792928A (en) * 2019-09-24 2020-02-14 中国石油化工股份有限公司 Pipeline leakage diagnosis combined algorithm based on big data
CN111623243A (en) * 2019-02-27 2020-09-04 武汉国测数据技术有限公司 Method, device and system for confirming network topological relation of regional oil pipe network
CN111624412A (en) * 2020-04-21 2020-09-04 北京信息科技大学 Lightning connection point positioning method, system, equipment and readable storage medium
WO2021017007A1 (en) * 2019-08-01 2021-02-04 唐山哈船科技有限公司 System and method for detecting sewer clogging causing urban waterlogging
CN112483907A (en) * 2020-11-10 2021-03-12 深圳市祥为测控技术有限公司 Pipeline leakage detection system and method
CN113154269A (en) * 2021-03-18 2021-07-23 河北机电职业技术学院 Pipeline liquid leakage monitoring, alarming and positioning system and method

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106054764A (en) * 2016-06-14 2016-10-26 沈阳怡森环保科技有限公司 Environment protection online data real-time collection and analysis system and use method
CN106123109A (en) * 2016-08-05 2016-11-16 倪晨钧 A kind of pepe monitoring system
CN106123109B (en) * 2016-08-05 2022-02-15 倪晨钧 Pipeline monitoring system
CN106090631A (en) * 2016-08-17 2016-11-09 渤海大学 A kind of long oil pipeline road leak detecting device and detection method
WO2018040730A1 (en) * 2016-08-31 2018-03-08 哈尔滨圣昌科技开发有限公司 Pipe network monitoring control system and monitoring control method achieved by using this system
CN108180398A (en) * 2017-12-28 2018-06-19 北京市燃气集团有限责任公司 A kind of anti-damage from third-party detection method of gas pipeline and detecting system
CN108180398B (en) * 2017-12-28 2019-06-11 北京市燃气集团有限责任公司 A kind of anti-damage from third-party detection method of gas pipeline and detection system
CN108488638A (en) * 2018-03-28 2018-09-04 东北大学 Line leakage system and method based on sound wave suction wave hybrid monitoring
CN108980637A (en) * 2018-07-12 2018-12-11 北京目黑科技有限公司 A kind of pipe leakage monitoring system and monitoring method
CN109140239A (en) * 2018-08-31 2019-01-04 深圳市纯水号水处理科技有限公司 A kind of pipeline pressure intelligence prior-warning device
CN109357167A (en) * 2018-10-30 2019-02-19 长春市万易科技有限公司 A kind of gas pipeline device for detecting leak point and detection method
CN109708009A (en) * 2019-01-25 2019-05-03 安徽泽众安全科技有限公司 A kind of device and method for the positioning of water supply line difference water leakage
CN109708009B (en) * 2019-01-25 2020-06-26 安徽泽众安全科技有限公司 Device and method for positioning different water leakage amounts of water supply pipeline
CN111623243A (en) * 2019-02-27 2020-09-04 武汉国测数据技术有限公司 Method, device and system for confirming network topological relation of regional oil pipe network
CN111623243B (en) * 2019-02-27 2022-03-25 深圳电蚂蚁数据技术有限公司 Method, device and system for confirming network topological relation of regional oil pipe network
CN109780450A (en) * 2019-03-12 2019-05-21 中海石油气电集团有限责任公司 The Intelligent electric drainage device and method of pipeline monitored by infrasonic wave supplementary AC stray electrical current
CN109780450B (en) * 2019-03-12 2024-01-30 中海石油气电集团有限责任公司 Intelligent drainage device and method for auxiliary alternating current stray current through pipeline infrasonic wave monitoring
WO2021017007A1 (en) * 2019-08-01 2021-02-04 唐山哈船科技有限公司 System and method for detecting sewer clogging causing urban waterlogging
CN110792928A (en) * 2019-09-24 2020-02-14 中国石油化工股份有限公司 Pipeline leakage diagnosis combined algorithm based on big data
CN110792928B (en) * 2019-09-24 2021-08-10 中国石油化工股份有限公司 Pipeline leakage diagnosis method based on big data combined algorithm
CN111624412B (en) * 2020-04-21 2022-04-08 北京信息科技大学 Lightning connection point positioning method, system, equipment and readable storage medium
CN111624412A (en) * 2020-04-21 2020-09-04 北京信息科技大学 Lightning connection point positioning method, system, equipment and readable storage medium
CN112483907B (en) * 2020-11-10 2022-02-11 深圳市祥为测控技术有限公司 Pipeline leakage detection system and method
CN112483907A (en) * 2020-11-10 2021-03-12 深圳市祥为测控技术有限公司 Pipeline leakage detection system and method
CN113154269A (en) * 2021-03-18 2021-07-23 河北机电职业技术学院 Pipeline liquid leakage monitoring, alarming and positioning system and method

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Application publication date: 20131211