CN109027705A - A kind of submarine pipeline infrasound leakage monitoring system - Google Patents

A kind of submarine pipeline infrasound leakage monitoring system Download PDF

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Publication number
CN109027705A
CN109027705A CN201810849448.9A CN201810849448A CN109027705A CN 109027705 A CN109027705 A CN 109027705A CN 201810849448 A CN201810849448 A CN 201810849448A CN 109027705 A CN109027705 A CN 109027705A
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CN
China
Prior art keywords
pipeline
infrasound
land
signal
module
Prior art date
Application number
CN201810849448.9A
Other languages
Chinese (zh)
Inventor
蒋晓斌
闫化云
刘汝国
刘海超
庄传晶
张晓灵
张福娟
于海涛
熊长玲
Original Assignee
中海油能源发展股份有限公司
中海油(天津)管道工程技术有限公司
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Application filed by 中海油能源发展股份有限公司, 中海油(天津)管道工程技术有限公司 filed Critical 中海油能源发展股份有限公司
Priority to CN201810849448.9A priority Critical patent/CN109027705A/en
Publication of CN109027705A publication Critical patent/CN109027705A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00Protection or supervision of installations
    • F17D5/02Preventing, monitoring, or locating loss
    • F17D5/06Preventing, monitoring, or locating loss using electric or acoustic means

Abstract

The invention discloses a kind of submarine pipeline infrasound leakage monitoring systems, including infrasonic sensor, on-site data gathering processor, processing terminal, GPS/ Beidou receiver;Infrasonic sensor is respectively arranged at the platform end and land end of pipeline;On-site data gathering processor is respectively arranged at the platform end and land end of pipeline, connect respectively with the infrasonic sensor at place end;GPS/ Beidou receiver is respectively arranged at the platform end and land end of pipeline, connect respectively with the on-site data gathering processor at place end;Processing terminal is set to the land end of pipeline, connect with the on-site data gathering processor at land end.The features such as present invention has the response time short, and rate of false alarm is low, accurate positioning, submarine pipeline strong applicability.

Description

A kind of submarine pipeline infrasound leakage monitoring system
Technical field
The present invention relates to submarine pipeline leakage monitoring fields, and more specifically, it relates to a kind of submarine pipeline infrasounds to let out Leak monitoring system.
Background technique
Submarine pipeline is responsible for the conveying task of Crude oil from CNOOC, condensate, natural gas and water, is a kind of safe and efficient Means of transportation.
During submarine pipeline operation is on active service, due to damage from third-party, corrosion etc., submarine pipeline is caused to leak thing Therefore.Submarine pipeline once leaks, and such as fails to discover and take corresponding measure in time, is bound to cause huge economic loss, It also will cause serious environmental pollution.It is therefore desirable to carry out leakage real-time monitoring to submarine pipeline, leakage early warning is carried out in time And positioning.
But line leakage technology is ideal in terrestrial pipeline application effect at present, implements on submarine pipeline It is still immature.The deficiency that the interior monitoring technology of calculating class is long there are the response time, rate of false alarm is high, can not even position;Increase and passes The external monitor technique influence submarine pipeline installation of sensor, difficult in maintenance, sensor is once impaired, the disadvantages such as maintenance cost is high End.
Summary of the invention
Purpose of the invention is to overcome the shortcomings in the prior art, provides a kind of steady submarine pipeline infrasound and lets out The features such as leakage monitoring system, has the response time short, and rate of false alarm is low, accurate positioning, submarine pipeline strong applicability.
The purpose of the present invention is what is be achieved through the following technical solutions.
Submarine pipeline infrasound leakage monitoring system of the invention, including the processing of infrasonic sensor, on-site data gathering Device, processing terminal, GPS/ Beidou receiver,
The infrasonic sensor is respectively arranged at the platform end and land end of pipeline, when for receiving submarine pipeline leakage The infrasound signal of generation, and the infrasound signal received is converted into electric signal;
The on-site data gathering processor is respectively arranged at the platform end and land end of pipeline, secondary with place end respectively Sonic sensor connection, is converted into digital signal for the electric signal of infrasonic sensor;
The GPS/ Beidou receiver is respectively arranged at the platform end and land end of pipeline, respectively with the live number at place end It is connected according to Acquisition Processor, arrives separately at platform for infrasound signal when capturing submarine pipeline leakage together with processing terminal The time at end and land end infrasonic sensor;
The processing terminal is set to the land end of pipeline, connect with the on-site data gathering processor at land end, receives The digital signal of the on-site data gathering processor of land end peace end, while according between the infrasonic sensor at both ends The infrasonic sensor at distance and both ends receives the time of infrasound signal, after analysis processing judgement, calculates leakage The position of point, alarms when being judged to leaking.
The infrasonic sensor is arranged four in total, and two of them are set to the platform end of pipeline, and another two is set to The land end of pipeline;Each infrasonic sensor is integrated with preamplifier and low-pass filter, it is described integrate it is preposition Amplifier is used to amplify the signal of output filtering processing, and the low-pass filter was used for by the way that cutoff frequency is arranged The sound wave for being higher than cutoff frequency in pipeline is filtered, the extraction of infrasound signal is facilitated.
The on-site data gathering processor is arranged two in total, one of them is set to the platform end of pipeline, another It is set to the land end of pipeline;Each on-site data gathering processor is converted by processor, analog signal to digital signal Device, frequency acquisition trigger, data acquisition module, network communication module, memory, external memory card composition.
Communication connection between the on-site data gathering processor at the platform end and the processing terminal at land end, which uses, to be defended Star communication or wireless telecommunications.
The processing terminal uses computer, is integrated with data analyzing and processing software system in the computer, the software System includes main interface control module, data acquisition and preserving module, data-signal read module, data processing module, communication Module, pattern recognition module, alarm module, automatic positioning module.
Compared with prior art, the beneficial effects brought by the technical solution of the present invention are as follows:
(1) submarine pipeline once leaks, and when pressurized fluid medium is sprayed from leakage place, generates the infrasonic sound of certain frequency Wave, for infrasound towards propagation is reversed in pipeline medium, infrasonic sensor carries out the reception of infrasound signal;Multiple infrasonic sounds Wave sensor installation helps to reduce system rate of false alarm by mode identification method.
(2) processing terminal receives the digital signal of the on-site data gathering processor of land end peace end, while basis The distance between the infrasonic sensor at both ends and the infrasonic sensor at both ends receive the time of infrasound signal, through dividing After analysis processing judgement, the position of leakage point is calculated, is alarmed when being judged to leaking.
(3) infrasound leakage monitoring system only installs sensor and on-site data gathering processor in pipe ends, Submarine pipeline, which creates, will not damage it in process of deployment.It meanwhile for in-service submarine pipeline, can also be transformed, protect Hinder its safe operation.
Detailed description of the invention
Fig. 1 is submarine pipeline infrasound leakage monitoring system schematic layout pattern of the present invention;
Fig. 2 is the schematic diagram of on-site data gathering processor in the present invention;
Fig. 3 is the schematic diagram of processing terminal in the present invention.
Appended drawing reference: 1 infrasonic sensor, 2 on-site data gathering processors,
3 GPS/ Beidou receivers, 4 processing terminals.
Specific embodiment
The invention will be further described with reference to the accompanying drawing.
As shown in Figure 1, submarine pipeline infrasound leakage monitoring system of the invention, including infrasonic sensor 1, live number According to Acquisition Processor 2, GPS/ Beidou receiver 3, processing terminal 4.
The infrasonic sensor 1 is respectively arranged at the platform end of pipeline and land end, submarine pipeline once leak, When pressurized fluid medium is sprayed from leakage place, generate the infrasound of certain frequency, infrasound in pipeline medium towards reversely into Row is propagated, and infrasonic sensor 1 carries out the reception of infrasound signal, and the infrasound signal received is converted to electric signal.
The infrasonic sensor 1 is arranged four in total, and two of them are set to the platform end of pipeline, and another two is set to The land end of pipeline.Multiple installations of infrasonic sensor 1 help to reduce system rate of false alarm by mode identification method.Each institute It states infrasonic sensor 1 and is integrated with preamplifier and low-pass filter, the integrated preamplifier is used for output Signal amplifies filtering processing.The low-pass filter, by setting cutoff frequency in zone of reasonableness, for filtering out pipeline In be higher than cutoff frequency sound wave, effectively avoid the interference of pipeline high frequency sound wave, facilitate the extraction of infrasound signal.
The on-site data gathering processor 2 is respectively arranged at the platform end and land end of pipeline, respectively with place end Infrasonic sensor 1 connects, and the electric signal of infrasonic sensor 1 is converted into digital signal.
The on-site data gathering processor 2 is arranged two in total, one of them is set to the platform end of pipeline, another It is set to the land end of pipeline.As shown in Fig. 2, each on-site data gathering processor 2 is mainly by processor, analog signal To digital signal converter, frequency acquisition trigger, data acquisition module, network communication module, memory, external memory card group At.The processor respectively with analog signal to digital signal converter, frequency acquisition trigger, data acquisition module, memory, External memory card connection, the analog signal to digital signal converter are connect with network communication module, the frequency acquisition touching Hair device is connect with data acquisition module.
The processor is single chip microcontroller, the main whole control for realizing on-site data gathering processor 2.It is described to adopt Collect the setting that frequency trigger passes through particular acquisition frequency, periodically provides instruction to data acquisition module.The data acquisition module Electric signal of the block according to the frequency timing acquiring infrasonic sensor 1 of frequency acquisition trigger, and analog signal is transferred to number Word signal adapter.Acoustic signals are converted to manageable digital signal to digital signal converter by the analog signal, And processing terminal 4 is transferred to by network communication module.The network communication module is by agreement, by digital data transmission to place Reason terminal is analyzed.Synchronous dynamic random access memory is saved as in described, is used to temporary storage of data, is avoided because power failure causes Loss of data.The external memory card is used for the storage and backup of data.
The GPS/ Beidou receiver 3 is respectively arranged at the platform end and land end of pipeline, respectively with the scene at place end Data collection processor 2 connects, and arrives separately at for infrasound signal when capturing submarine pipeline leakage together with processing terminal 4 The time at platform end and land end infrasonic sensor 1, to combine spread speed of the infrasound signal in pumped (conveying) medium, meter It calculates leakage and position occurs.By calculate between the infrasound signal speed of service in the medium, both ends infrasonic sensor away from From the time difference data that, infrasound is transmitted to infrasonic sensor, leakage automatic positioning can be carried out.The position of leakage point S can It is calculated and is determined by following formula:
Wherein: S is distance of the leak position to the first infrasonic sensor for receiving infrasound signal in land end, m; D For first the distance between the infrasonic sensor for receiving infrasound signal in both ends, m;V be infrasound signal in the medium Spread speed, m/s;t1、t2Respectively land end, the first infrasonic sensor for receiving infrasound signal in platform end receives time The time of acoustic signals, s.
The processing terminal 4 is set to the land end of pipeline, connect with the on-site data gathering processor at land end, receives The digital signal of the on-site data gathering processor 2 of land end peace end, while according between the infrasonic sensor at both ends 1 Distance and the infrasonic sensor 1 at both ends receive time of infrasound signal, after analysis processing judgement, calculate and let out The position of leak source, alarms when being judged to leaking.The on-site data gathering processor 2 at the platform end and the processing at land end Communication connection between terminal 4 uses satellite communication or wireless telecommunications.
The processing terminal 4 uses computer, is integrated with data analyzing and processing software system in the computer, the software System includes main interface control module, data acquisition and preserving module, data-signal read module, data processing module, communication Module, pattern recognition module, alarm module, automatic positioning module.The data flow of each functional module is as shown in Figure 3.The main boundary Face control module is the core of the software systems, it is possible to provide visualized operation interface calls other function module to realize number According to the allomeric function of interpretation software.The data acquisition and preserving module mainly complete the biography of on-site data gathering processor 2 The extraction and storage of the defeated digital signal to come, and data call is carried out for data-signal read module.The data-signal is read Modulus block provides data to main interface control module, and carries out data call for data processing module and pattern recognition module. The communication module is established and safeguards the communication channel between each data transmission, for different communication modes and agreement, exploitation Corresponding correction monitor eventually becomes the communication module with unified interface.The data processing module using Fourier transformation, The signal processing methods such as wavelet analysis, main to complete data processing and the realization of data alarming logic, warning message is to main boundary Face control module is sent.The pattern recognition module is based on the basis of data processing module, and further progress mode is known It does not analyze, reduces system rate of false alarm.The alarm module mainly according to type of alarm, is realized based on pipeline GIS electronically The alarm of figure animation.When leakage alarm occurs for pipeline, platform end sends corresponding the automatic positioning module according to the signal received Data, land end to the data received analysis after provide corresponding leak position warning note.
Although function and the course of work of the invention are described above in conjunction with attached drawing, the invention is not limited to Above-mentioned concrete function and the course of work, the above mentioned embodiment is only schematical, rather than restrictive, ability The those of ordinary skill in domain under the inspiration of the present invention, is not departing from present inventive concept and scope of the claimed protection situation Under, many forms can also be made, all of these belong to the protection of the present invention.

Claims (5)

1. a kind of submarine pipeline infrasound leakage monitoring system, which is characterized in that including infrasonic sensor, on-site data gathering Processor, processing terminal, GPS/ Beidou receiver,
The infrasonic sensor is respectively arranged at the platform end and land end of pipeline, generation when for receiving submarine pipeline leakage Infrasound signal, and the infrasound signal received is converted into electric signal;
The on-site data gathering processor is respectively arranged at the platform end and land end of pipeline, respectively with the infrasound at place end Sensor connection, is converted into digital signal for the electric signal of infrasonic sensor;
The GPS/ Beidou receiver is respectively arranged at the platform end and land end of pipeline, and the field data with place end is adopted respectively Set processor connection, for captured together with processing terminal submarine pipeline leakage when infrasound signal arrive separately at platform end and The time of land end infrasonic sensor;
The processing terminal is set to the land end of pipeline, connect with the on-site data gathering processor at land end, receives land The digital signal of the on-site data gathering processor of peaceful end is held, while according to the distance between the infrasonic sensor at both ends And the infrasonic sensor at both ends receives the time of infrasound signal, after analysis processing judgement, calculates leakage point Position is alarmed when being judged to leaking.
2. submarine pipeline infrasound leakage monitoring system according to claim 1, which is characterized in that the infrasound sensing Device is arranged four in total, and two of them are set to the platform end of pipeline, and another two is set to the land end of pipeline;Each described time Sonic sensor is integrated with preamplifier and low-pass filter, the integrated preamplifier be used for the signal of output into Row amplification filtering processing, the low-pass filter, by the way that cutoff frequency is arranged, for filtering out in pipeline higher than cutoff frequency Sound wave facilitates the extraction of infrasound signal.
3. submarine pipeline infrasound leakage monitoring system according to claim 1, which is characterized in that the field data is adopted Set processor is arranged two in total, one of them is set to the platform end of pipeline, another is set to the land end of pipeline;Each The on-site data gathering processor is adopted by processor, analog signal to digital signal converter, frequency acquisition trigger, data Collect module, network communication module, memory, external memory card composition.
4. submarine pipeline infrasound leakage monitoring system according to claim 1, which is characterized in that the platform end shows Communication connection between field data Acquisition Processor and the processing terminal at land end uses satellite communication or wireless telecommunications.
5. submarine pipeline infrasound leakage monitoring system according to claim 1, which is characterized in that the processing terminal is adopted With computer, be integrated with data analyzing and processing software system in the computer, the software systems include main interface control module, Data acquisition and preserving module, data-signal read module, data processing module, communication module, pattern recognition module, alarm mould Block, automatic positioning module.
CN201810849448.9A 2018-07-28 2018-07-28 A kind of submarine pipeline infrasound leakage monitoring system CN109027705A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001349829A (en) * 2000-06-06 2001-12-21 Hochiki Corp Gas monitoring device
CN102563364A (en) * 2012-03-07 2012-07-11 张钧 Monitoring and positioning device for leakage of gas delivery pipe
CN203147291U (en) * 2013-03-27 2013-08-21 黄鹏 System capable of monitoring pipeline leakage by means of infrasonic waves, flow balance and negative pressure waves
CN105156905A (en) * 2015-07-09 2015-12-16 南京声宏毅霆网络科技有限公司 Leakage monitoring system, method and device for pipeline and server
CN106151887A (en) * 2016-07-01 2016-11-23 北京华科合创科技发展有限公司 A kind of gas oil pipe leakage comprehensive monitor system
CN106352243A (en) * 2016-10-20 2017-01-25 山东科技大学 Gas transmission pipeline leakage detection system based on acoustic method
CN106597377A (en) * 2016-12-15 2017-04-26 北京科创三思科技发展有限公司 Infrasonic wave in-pipe robot quick positioning system and infrasonic wave in-pipe robot quick positioning method
CN107606494A (en) * 2017-09-30 2018-01-19 上海邦芯物联网科技有限公司 A kind of line leakage and system of defense and method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001349829A (en) * 2000-06-06 2001-12-21 Hochiki Corp Gas monitoring device
CN102563364A (en) * 2012-03-07 2012-07-11 张钧 Monitoring and positioning device for leakage of gas delivery pipe
CN203147291U (en) * 2013-03-27 2013-08-21 黄鹏 System capable of monitoring pipeline leakage by means of infrasonic waves, flow balance and negative pressure waves
CN105156905A (en) * 2015-07-09 2015-12-16 南京声宏毅霆网络科技有限公司 Leakage monitoring system, method and device for pipeline and server
CN106151887A (en) * 2016-07-01 2016-11-23 北京华科合创科技发展有限公司 A kind of gas oil pipe leakage comprehensive monitor system
CN106352243A (en) * 2016-10-20 2017-01-25 山东科技大学 Gas transmission pipeline leakage detection system based on acoustic method
CN106597377A (en) * 2016-12-15 2017-04-26 北京科创三思科技发展有限公司 Infrasonic wave in-pipe robot quick positioning system and infrasonic wave in-pipe robot quick positioning method
CN107606494A (en) * 2017-09-30 2018-01-19 上海邦芯物联网科技有限公司 A kind of line leakage and system of defense and method

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