CN203147291U - System capable of monitoring pipeline leakage by means of infrasonic waves, flow balance and negative pressure waves - Google Patents
System capable of monitoring pipeline leakage by means of infrasonic waves, flow balance and negative pressure waves Download PDFInfo
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- CN203147291U CN203147291U CN 201320143548 CN201320143548U CN203147291U CN 203147291 U CN203147291 U CN 203147291U CN 201320143548 CN201320143548 CN 201320143548 CN 201320143548 U CN201320143548 U CN 201320143548U CN 203147291 U CN203147291 U CN 203147291U
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Abstract
Description
Technical field
The utility model relates to the pipeline monitoring technical field, refers to utilize infrasonic wave, flow equilibrium and suction wave to carry out the system of line leakage especially.
Background technique
Crude oil pipeline is the lifeline of field produces, if pipeline is bored a hole, will cause crude oil or rock gas to produce a series of adverse consequencess such as leakage, environmental pollution.Yet line walking, stop production, speedily carry out rescue work, mending-leakage, the material resources of need employing a tremendous amount of manpower, the cost plenty of time, its economic loss is very huge.If take advanced technological means, petroleum pipeline is monitored in real time, judge the leak position rapidly accurately, accident is in time handled, make loss drop to bottom line, and the undesirable formed powerful fright and containment effect, thus having guaranteed that national wealth avoids losing the normal operation with field produces, its meaning is positive.
Existing several monitoring methods comprise at present: one, suction wave monitoring method, its basic principle is: can change because of the pressure along the line that the flowing medium ejection produces during pipe leakage, this variation is propagated to two ends centered by leakage point by pipeline and medium as a kind of wave source.The variation ripple of this wave source is called suction wave.The suction wave monitoring technology is to utilize the pipe ends measuring point that time difference and suction wave that suction wave monitors are judged the leak position in ducted velocity of propagation.But this method is not very sensitive to small seepage slowly, and undesirable to having constrictive natural gas transmission pipeline.Two, volume or mass balance monitoring method, its basic principle is: the quality of in-and-out pipe should equate under normal operating condition, compare by present advanced person's collection, the qualitative data that means of communication is gathered pipe ends in real time, just can whether leak pipeline medium very easily and judge.The advantage of this method be by contrast turnover quality volume energy accurately judge the generation of leakage, and can in time find less leakage.But the shortcoming of this method is: Location accuracy is low; Can't locate less leakage.Three, monitored by infrasonic wave method, infrasonic wave technology are a kind of novel monitoring means in domestic new introducing line leakage field, are used for the infrasonic wave that monitoring pipeline inner fluid produces when breaking through the tube wall constraint.The infrasonic wave frequency is low, wavelength is longer, performance suddenly resolute.This wave property is subjected to the influence of noise in the pipeline minimum, the constant and long transmission distance of velocity of propagation, and signal can gem-purely be delivered to the far-end receiving element and be as the criterion and determine that the position created condition.But because the start and stop of pipeline mounted pump again because the variable frequency adjustment device is frequently regulated the vibration friction in discharge capacity and oil transfer pump and the flowmeter working procedure, make the frequent noise that produces in the pipeline.This signal has rate and feature when identical with the signal that leak to produce.This signal is given the leak diagnostics of monitoring system and is eliminated false alarm and cause great difficulty.Various pipeline monitoring methods in sum all exist its advantage and deficiency.
Summary of the invention
In view of this, the utility model embodiment's main purpose is to provide utilizes infrasonic wave, flow equilibrium and suction wave to carry out the system of line leakage, can solve the existing single use of monitoring method only can the unilateral result of providing, and the not accurate enough problem of result.
For achieving the above object, the utility model embodiment's technological scheme is achieved in that
The utility model provides a kind of system that utilizes infrasonic wave, flow equilibrium and suction wave to carry out line leakage, and described system comprises: infrasonic sensor, flowmeter, suction wave sensor, data link and data analysis processor, wherein,
Described infrasonic sensor, flowmeter and suction wave sensor are installed in respectively on the pipeline of initial station and terminal, and connect data link, and the data link linking number is processor according to one's analysis.
Wherein, described infrasonic sensor, flowmeter and suction wave sensor are installed in respectively on the pipeline of initial station and terminal, wherein,
Be installed in infrasonic sensor, flowmeter and the suction wave sensor of initial station, be used for gathering infrasonic wave, flow and the negative pressure wave signal data of initial station;
Be installed in infrasonic sensor, flowmeter and the suction wave sensor of terminal, be used for gathering infrasonic wave, flow and the negative pressure wave signal data of terminal.
Wherein, described infrasonic sensor, flowmeter and suction wave sensor connect data link, are specially: the data link that infrasonic wave, flow and negative pressure wave signal data is at first stop sent to the initial station carries out pretreatment, compression and packing;
Carry out pretreatment, compression and packing with what the infrasonic wave of terminal, flow and negative pressure wave signal data sent terminal to data link.
Wherein, described data link linking number is the mode of processor according to one's analysis, comprising: wire communication mode and/or wireless communication mode and/or network communication mode.
Wherein, described data analysis processor further comprises: utilize the infrasonic wave technology that unusual leakage point is positioned, the prompting locating information was reported to the police in the default time.
Utilize infrasonic wave, flow equilibrium and suction wave that the utility model embodiment provides carry out the system of line leakage, described system comprises: infrasonic sensor, flowmeter, suction wave sensor, data link and data analysis processor, wherein, described infrasonic sensor, flowmeter and suction wave sensor, be installed in respectively on the pipeline of initial station and terminal, and the connection data link, the data link linking number is processor according to one's analysis.By said system can comprehensive three kinds of monitoring methods advantage in one, remedied mutual deficiency, make the leakage monitoring of system and the lifting that Location accuracy has had matter, greatly improved leakage monitoring report to the police reliability and the accuracy of location.
Description of drawings
Fig. 1 is that the utility model utilizes infrasonic wave, flow equilibrium and suction wave to carry out the structural representation of the system of line leakage.
Embodiment
The utility model embodiment's basic thought is: sonic method is basic skills in proper order, reports to the police, locatees in conjunction with suction wave, volumetric balance contrast multi-method comprehensive analysis, in order to realization pipeline is revealed and is monitored.
Below by drawings and the specific embodiments the utility model embodiment is described in further detail again.
The utility model embodiment provides and has utilized infrasonic wave, flow equilibrium and suction wave to carry out the system of line leakage, Fig. 1 is that the utility model utilizes infrasonic wave, flow equilibrium and suction wave to carry out the structural representation of the system of line leakage, as shown in Figure 1, described system comprises: infrasonic sensor 11, flowmeter 12, suction wave sensor 13, data link 14 and data analysis processor 15, wherein
Described infrasonic sensor 11, flowmeter 12 and suction wave sensor 13 are installed in respectively on the pipeline of initial station and terminal, and connect data link 14, and data link 14 linking numbers are processor 15 according to one's analysis.
Concrete, described infrasonic sensor 11, flowmeter 12 and suction wave sensor 13, be installed in respectively on the pipeline of initial station and terminal, wherein, be installed in infrasonic sensor 11, flowmeter 12 and the suction wave sensor 13 of initial station, be used for gathering infrasonic wave, flow and the negative pressure wave signal data of initial station; Be installed in infrasonic sensor 111, flowmeter 112 and the suction wave sensor 113 of terminal, be used for gathering infrasonic wave, flow and the negative pressure wave signal data of terminal.
Described infrasonic sensor 11, flowmeter 12 and suction wave sensor 13 connect data link 14, are specially: the data link 14 that infrasonic wave, flow and negative pressure wave signal data is at first stop sent to the initial station carries out pretreatment, compression and packing; Carry out pretreatment, compression and packing with what the infrasonic wave of terminal, flow and negative pressure wave signal data sent terminal to data link 114.
Described data link 14 linking numbers are the mode of processor 15 according to one's analysis, comprising: wire communication mode and/or wireless communication mode and/or network communication mode.
Described data analysis processor 15 further comprises: utilize the infrasonic wave technology that unusual leakage point is positioned, the prompting locating information was reported to the police in the default time.
In actual applications, described data analysis processor 15 is analyzed abnormal conditions according to infrasonic wave, flow and negative pressure wave signal, be specially: when finding the feature of leakage infrasonic wave is arranged, the flow of contrast initial station and terminal and two station negative pressure wave signals change, if the flow of terminal reduces less than flow while initial station and the terminal negative pressure wave signal of initial station, then judge abnormal conditions to occur; Leak the feature infrasonic wave if find to have, but the constant or same trend of the flow of initial station and terminal and negative pressure wave signal improves or during decline, then do not belong to abnormal conditions.The described abnormal conditions of handling when abnormal conditions take place are specially: report to the police in the default time, utilize the infrasonic wave technology that unusual leakage point is positioned, the prompting locating information.
Further, the flow of described contrast initial station and terminal and two station negative pressure wave signals change, if the flow of terminal reduces less than flow while head and the terminal negative pressure wave signal of initial station, then judge and abnormal conditions occur, be specially: the flow that utilizes flow at first stop to deduct terminal obtains difference, obtains the two station negative pressure wave signals amplitude that reduces before simultaneously, if difference and the amplitude that reduces are greater than the trueness error scope of gathering, then judge abnormal conditions to occur, otherwise do not belong to abnormal conditions.
Further, utilizing the infrasonic wave technology to position is specially: the infrasonic wave technology is a kind of novel monitoring technology in line leakage field, be used for the infrasonic wave that monitoring pipe leakage and pipeline produce when unusual, go out to leak the infrasonic wave that produces and reflect with curve form by the frequency analysis sub-argument.Facts have proved that this ripple characteristic, velocity of propagation in same medium is constant, signal can very clearly be delivered to the far-end receiving element, is as the criterion to determine that the position created condition.Therefore, the infrasonic wave technology can be to small leakage alarm and accurate location in conjunction with suction wave technology, volumetric balance correlation technique comprehensive monitor system.Calculated the particular location of leakage point by formula 1.
Formula 1:
Wherein, to be that duct length, V are that sound wave passes headed by wave velocity, the t1-t2 terminal secondary wave time of reception poor for L.
Native system has good effect through experimental test, and the optimization technique index that test draws is: monitoring length: every section less than 60Km; Monitoring accuracy: 5 ‰-1% (instantaneous displacement); Positioning error: duct length 5 ‰+(±) 100m: rate of false alarm: less than 1%.
What need further specify is, because each device of native system is installed in initial station and the terminal of pipeline respectively, and central control chamber, so accompanying drawing 1 only is the structural representation of native system.
The above; it only is preferred embodiment of the present utility model; be not for limiting protection domain of the present utility model, all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
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| CN 201320143548 CN203147291U (en) | 2013-03-27 | 2013-03-27 | System capable of monitoring pipeline leakage by means of infrasonic waves, flow balance and negative pressure waves |
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Cited By (15)
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| CN104006299A (en) * | 2014-05-16 | 2014-08-27 | 中国海洋石油总公司 | Pipeline blockage monitoring system and monitoring fusing processing method thereof |
| CN104500984A (en) * | 2014-12-30 | 2015-04-08 | 北京科创三思科技发展有限公司 | Sub-high pressure A gas pipeline leakage monitoring system |
| CN104976518A (en) * | 2015-06-08 | 2015-10-14 | 中国海洋石油总公司 | Subsea pipeline leakage monitoring system |
| CN105135216A (en) * | 2015-07-30 | 2015-12-09 | 云南大红山管道有限公司 | Method for locating leakage position of ore pulp conveying pipe |
| 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 |
| CN107869654A (en) * | 2016-09-27 | 2018-04-03 | 中国石油天然气股份有限公司 | A kind of oil-gas pipeline booster detects localization method |
| CN108006442A (en) * | 2016-11-21 | 2018-05-08 | 吉林省百瑞生科技发展有限公司 | A kind of fluid line leak position system and method |
| 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 |
| CN108571659A (en) * | 2017-03-13 | 2018-09-25 | 威派（武汉）高新技术股份有限公司 | Groundwater supply pipe network water leakage sound signal collecting and compression method |
| CN109027705A (en) * | 2018-07-28 | 2018-12-18 | 中海油能源发展股份有限公司 | A kind of submarine pipeline infrasound leakage monitoring system |
| 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 |
| CN109798451A (en) * | 2017-11-16 | 2019-05-24 | 中国石油天然气股份有限公司 | The determination method of oil-gas gathering and transferring pipeline leak position |
| CN110529746A (en) * | 2019-09-05 | 2019-12-03 | 北京化工大学 | Detection method, device and the equipment of pipe leakage |
| CN110566819A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | Dual-mode petrochemical safety sensing equipment optimization device and method based on 4G technology |
| 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 |
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| CN104006299B (en) * | 2014-05-16 | 2016-08-24 | 中国海洋石油总公司 | A kind of monitoring pipeline blocking system and monitoring method for amalgamation processing thereof |
| CN104006299A (en) * | 2014-05-16 | 2014-08-27 | 中国海洋石油总公司 | Pipeline blockage monitoring system and monitoring fusing processing method thereof |
| CN104500984A (en) * | 2014-12-30 | 2015-04-08 | 北京科创三思科技发展有限公司 | Sub-high pressure A gas pipeline leakage monitoring system |
| CN104976518B (en) * | 2015-06-08 | 2017-10-13 | 中国海洋石油总公司 | A kind of submerged pipeline leakage monitoring system |
| CN104976518A (en) * | 2015-06-08 | 2015-10-14 | 中国海洋石油总公司 | Subsea pipeline leakage monitoring system |
| CN105135216A (en) * | 2015-07-30 | 2015-12-09 | 云南大红山管道有限公司 | Method for locating leakage position of ore pulp conveying pipe |
| 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 |
| CN107869654A (en) * | 2016-09-27 | 2018-04-03 | 中国石油天然气股份有限公司 | A kind of oil-gas pipeline booster detects localization method |
| CN107869654B (en) * | 2016-09-27 | 2020-03-10 | 中国石油天然气股份有限公司 | Oil-gas pipeline pipe burst detection positioning method |
| CN108006442B (en) * | 2016-11-21 | 2019-01-29 | 吉林省百瑞生科技发展有限公司 | A kind of fluid line leak position system and method |
| CN108006442A (en) * | 2016-11-21 | 2018-05-08 | 吉林省百瑞生科技发展有限公司 | A kind of fluid line leak position system and method |
| CN108571659A (en) * | 2017-03-13 | 2018-09-25 | 威派（武汉）高新技术股份有限公司 | Groundwater supply pipe network water leakage sound signal collecting and compression method |
| CN109798451B (en) * | 2017-11-16 | 2020-09-08 | 中国石油天然气股份有限公司 | Method for determining leakage position of oil gas gathering and transportation pipeline |
| CN109798451A (en) * | 2017-11-16 | 2019-05-24 | 中国石油天然气股份有限公司 | The determination method of oil-gas gathering and transferring pipeline leak position |
| 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 |
| CN110566819A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | Dual-mode petrochemical safety sensing equipment optimization device and method based on 4G technology |
| CN109027705A (en) * | 2018-07-28 | 2018-12-18 | 中海油能源发展股份有限公司 | A kind of submarine pipeline infrasound leakage monitoring system |
| 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 |
| CN110529746A (en) * | 2019-09-05 | 2019-12-03 | 北京化工大学 | Detection method, device and the equipment of pipe leakage |
| 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 |
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