CN107940246A - A kind of fluid line source of leaks monitoring and positioning system and method - Google Patents
A kind of fluid line source of leaks monitoring and positioning system and method Download PDFInfo
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- CN107940246A CN107940246A CN201711115000.6A CN201711115000A CN107940246A CN 107940246 A CN107940246 A CN 107940246A CN 201711115000 A CN201711115000 A CN 201711115000A CN 107940246 A CN107940246 A CN 107940246A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
Abstract
The present invention discloses a kind of fluid line source of leaks monitoring and positioning system and method, is related to pipeline inspection technology field, solves the problems, such as that the leak position result that the fixed algorithm combination specific operation environmental parameter of use in the prior art is calculated is inaccurate.The system includes main station unit and n substation unit, main station unit includes sound wave grade measure module and location Calculation module, the input terminal of sound wave grade measure module is interconnected with each substation unit respectively, and the output terminal of sound wave grade measure module is connected with location Calculation module；Substation unit is used to detect source of leaks acoustic signals, gathers the fluid information in pipeline ontology information and corresponding pipeline, composition data set；Sound wave grade measure module is used to close measure source of leaks sound wave grade Lnoise according to the group data set being initially received；Location Calculation module is used to position leakage source position according to source of leaks sound wave rating calculation.Fluid line source of leaks monitoring and positioning system provided by the invention is used for the detection in pipe leakage source.
Description
Technical field
The present invention relates to pipeline inspection technology field, more particularly to a kind of fluid line source of leaks monitoring and positioning system and side
Method.
Background technology
In recent years, catastrophic failure takes place frequently caused by gas oil pipe leakage, and the safe operation and maintenance of pipeline receive
Threaten and challenge.Therefore need to establish pipe safety pre-alarm system using advanced scientific method, pass through effective technology hand
Section monitors fluids within pipes leakage accident in real time, leakage alarm and fast positioning is accurately sent, in order to production unit
Start corresponding emergency preplan, reduce the generation of similar security incident.
At present, can to fluids within pipes leak monitoring method have it is a variety of, for example, pressure spot analytic approach, negative pressure wave method,
Difference in flow monitoring method, fiber optic cable monitor method etc., but these methods are only applicable to the monitoring positioning of liquid leakage source position, and
It is larger by above method positioning result deviation.And it is common can have two kinds to the positioning mode of gas leakage source position, first
Kind is sonic method, by detecting the time of infrasound signal arrival detector caused by gas in pipelines leakage, is multiplied by gas
The spread speed of interior infrasound ripple, you can locating gas leak position, but in actual use, since infrasound signal is by temperature
Degree, pressure, the fluctuation of flow velocity and Effects of Density are larger, therefore the positioning knot of this method is used under same pipeline difference work condition environment
Fruit deviation is larger；Second is transient model method, by the theoretical pressure at Simulation Prediction pipe inspection point, with reality
Measurement pressure is compared, and thinks that pipeline is leaked when difference between the two meets or exceeds some threshold value,
Then leakage point is positioned by ranging formula, although this method is current most widely used localization method,
The detection sensitivity of the localization method is poor, i.e., when Small leak occurs for pipeline there may be can't detect, there is a phenomenon where fail to report.
The content of the invention
It is an object of the invention to provide a kind of fluid line source of leaks monitoring and positioning system and method, solves existing skill
The problem of leak position result being calculated in art using fixed algorithm combination specific operation environmental parameter is inaccurate.
To achieve these goals, an aspect of of the present present invention provides a kind of fluid line source of leaks monitoring and positioning system, bag
Main station unit and n substation unit are included, the n substation units are sequentially distributed along fluid line direction, each substation unit
Connected respectively with the fluid line, n >=2；Wherein, the main station unit includes sound wave grade measure module and location Calculation mould
Block, the input terminal of the sound wave grade measure module are interconnected with each substation unit respectively, the sound wave grade measure
The output terminal of module is connected with the location Calculation module；
The substation unit is used to detect source of leaks acoustic signals, gathers the stream in pipeline ontology information and corresponding pipeline
Body information, composition data set；
The sound wave grade measure module is used for the data acquisition system measure source of leaks sound according to one group be initially received
Ripple grade Lnoise；
The location Calculation module is used to position the leakage source position according to the source of leaks sound wave rating calculation.
Preferably, the substation unit includes the infrasonic sensor equipped with GPS module, pressure transmitter, flow detection
Device and digitizer, the infrasonic sensor are connected by sensor ball valve with the fluid line, the pressure inverting
Device is connected by pressure transmitter ball valve with the fluid line, and the flow detector is located on the fluid line, described
One end of digitizer is connected with the infrasonic sensor, the pressure transmitter and the flow detector respectively, described
The other end of digitizer is connected with sound wave grade measure module；
The infrasonic sensor is used to detect the source of leaks acoustic signals, the pressure transmitter and flow inspection
Survey device to be used to detect the fluid information in pipeline, the fluid information includes pipeline instantaneous pressure value p and pipeline instantaneous delivery value
Q；
The digitizer be used for controlled respectively according to control signal the infrasonic sensor, the pressure transmitter and
The on off state of the flow detector, and the collection pipeline body information, it is thick that the pipeline body information includes pipeline
Infrasonic sound velocity of wave propagation C in rugosity ε, pipe diameter d, fluidW, pipeline material density pW, pipe thickness s, transmission medium in pipeline
Density pFAnd absolute temperature T.
Further, the main station unit further includes the main control module being connected with sound wave grade measure module, described
Main control module is used to receive the source of leaks sound wave grade Lnoise, and discharges gain control signal；
The infrasonic sensor is additionally operable to according to the gain control signal, gain amplifier Z.
Preferably, the location Calculation module include algorithms selection submodule and respectively with the algorithms selection submodule
Infrasound method submodule, transient model method submodule, the infrasound-transient model method submodule of connection；
The algorithms selection submodule is used to preset Low threshold LLWith high threshold LH, as source of leaks sound wave grade Lnoise ＜
Low threshold LLWhen, select infrasound method module to position the leakage source position, when source of leaks sound wave grade Lnoise ＞ high thresholds
Value LHWhen, select transient model method module to position the leakage source position, as Low threshold LLWhen≤source of leaks sound wave grade
Lnoise≤high threshold LH, select infrasound-transient model method module to position the leakage source position；
The infrasound method module using infrasound method monitor and calculate source of leaks to recently the substation unit away from
From Sc；
The transient model method module is monitored using transient model method and calculates source of leaks to the nearest substation unit
Distance Ss；
The infrasound-transient model submodule is monitored using noise normalization method and calculates source of leaks to the nearest substation
Distance Sz, the Sz=Gc*Sc+Gs*Ss of unit, wherein,
Preferably, the gain amplifier Z=5*Lnoise, the Low threshold LL=400, the high threshold LH=600.
Compared with prior art, fluid line source of leaks monitoring and positioning system provided by the invention has following
Beneficial effect：
In fluid line source of leaks monitoring and positioning system provided by the invention, it is made of main station unit and n substation unit,
Main station unit includes grade measure module and the location Calculation module being attached thereto, and grade measure module is single with n substation respectively
Member interactive connection, and each substation unit is sequentially distributed along fluid line direction；The present invention is distributed by using on fluid line
Arrange the mode of substation unit so that each substation unit monitors the fluid line of corresponding segment in real time, so that in office a bit of
When fluid line leaks, source of leaks acoustic signals can be detected by the substation unit at its nearest neighbours, then passed through
Main station unit locks fluid line position residing for the substation unit, can Primary Location source of leaks approximate location.
In addition, substation unit can also gather the fluid information in pipeline ontology information and corresponding pipeline so that sound wave
Grade measures module according to the fluid information measure current leak source sound in source of leaks acoustic signals, pipeline body information and pipeline
Ripple grade Lnoise (noise grade), when source of leaks sound wave grade Lnoise is only applicable in the design conditions of infrasound method, is then adopted
Source of leaks is calculated to the distance of nearest virgin station unit with infrasound method, when source of leaks sound wave grade Lnoise is only applicable in wink
During the design conditions of states model method, then source of leaks is calculated to the distance of nearest virgin station unit using transient model method, and
When source of leaks sound wave grade Lnoise is applicable in the design conditions of infrasound method, and is applicable in the design conditions of transient model method,
Source of leaks is then calculated to the distance of nearest virgin station unit using infrasound-transient model method of accuracy higher.
As it can be seen that be compared in the prior art only with infrasound legal position leakage source position for, it is provided by the invention
Fluid line source of leaks monitoring and positioning system can automatically select conjunction according to source of leaks sound wave grade Lnoise under different operating modes
Source of leaks is calculated to the distance of nearest virgin station unit in suitable algorithm, in conjunction with fluid line position residing for the unit of nearest virgin station
Put, and then accurately source of leaks is positioned.
Another aspect of the present invention provides a kind of fluid line source of leaks monitoring and positioning method, applied to above-mentioned technical proposal
In the fluid line leak position system, the described method includes：
Source of leaks acoustic signals are detected, gather the fluid information in pipeline ontology information and corresponding pipeline, composition data
Set；
The data acquisition system measure source of leaks sound wave grade Lnoise according to one group be initially received；
The leakage source position is positioned according to the source of leaks sound wave rating calculation.
Preferably, after measure obtains source of leaks sound wave grade Lnoise, main control module release gain control letter is utilized
Number so that infrasonic sensor is according to gain control signal, gain amplifier Z.
Preferably, the method that the group data set that the basis is initially received closes measure source of leaks sound wave grade Lnoise
Including：
Wherein, A is correction factor, ε is pipe roughness, R is noise reduction coefficient, d is pipe diameter, B is temperature production
Raw noise correction coefficient, △ E are data correction coefficient.
Further, the computational methods of the noise reduction coefficient R are：
The computational methods for the noise correction coefficient B that the temperature produces are：
The computational methods of the data correction coefficient △ E are：
Wherein, p represents that pipeline instantaneous pressure value, Q represent pipeline instantaneous delivery value, CWRepresent that infrasound propagates speed in fluid
Degree, ρWRepresent that pipeline material density, s represent pipe thickness, ρFRepresent that the density of transmission medium in pipeline, T represent absolute temperature, V
Represent fluid flow rate.
Preferably, the location Calculation module includes algorithms selection submodule, infrasound method submodule, transient model method
Module and infrasound-transient model method submodule, it is described according to source of leaks sound wave grade, corresponding selection infrasound method, transient state mould
The method of any of type method, infrasound-transient model method positioning leakage source position includes：
Low threshold L is preset using algorithms selection submoduleLWith high threshold LH；
Judge the source of leaks sound wave grade Lnoise and the Low threshold LLWith the high threshold LHRelation；
As source of leaks sound wave grade Lnoise ＜ Low thresholds LLWhen, select infrasound method module to be monitored using infrasound method
And source of leaks is calculated to the distance Sc of the nearest substation unit；
As source of leaks sound wave grade Lnoise ＞ high thresholds LHWhen, select transient model method module to use transient model method
Monitor and calculate source of leaks to the distance Ss of the nearest substation unit；
As Low threshold LLWhen≤source of leaks sound wave grade Lnoise≤high threshold LH, select infrasound-transient model submodule
Monitored using noise normalization method and calculate source of leaks to distance Sz, the Sz=Gc*Sc+Gs*Ss of the nearest substation list, wherein,
Gs=1-Gc,
Compared with prior art, the beneficial effect of fluid line source of leaks monitoring and positioning method provided by the invention with it is above-mentioned
The beneficial effect for the fluid line source of leaks monitoring and positioning system that technical solution provides is identical, and this will not be repeated here.
Brief description of the drawings
Attached drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structure diagram of fluid line source of leaks monitoring and positioning system in the embodiment of the present invention one；
Fig. 2 is the structure diagram of fluid line source of leaks monitoring and positioning system in the embodiment of the present invention one；
Fig. 3 is the flow diagram of fluid line source of leaks monitoring and positioning method in the embodiment of the present invention two.
Reference numeral：
1- substations unit, 2- main station units；
11- infrasonic sensors, 12- pressure transmitters；
13- sensor ball valves, 14- pressure transmitter ball valves；
15- flow detectors, 16- digitizers；
21- sound waves grade measures module, 221- infrasound method submodules；
222- transient model method submodules, 223- infrasounds-transient model method submodule；
224- algorithms selection submodules, 23- main control modules.
Embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, implement below in conjunction with the present invention
Attached drawing in example, is clearly and completely described the technical solution in the embodiment of the present invention.Obviously, described embodiment
Only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this area
All other embodiment that art personnel are obtained on the premise of creative work is not made, belongs to the model that the present invention protects
Enclose.
Embodiment one
Please refer to Fig.1 and Fig. 2, the present embodiment provides a kind of fluid line source of leaks monitoring and positioning system, including main website list
Member 2 and n substation unit 1, n substation unit 1 be sequentially distributed along fluid line direction, each substation unit 1 respectively with fluid hose
Road connects, n >=2；Wherein, main station unit 2 includes sound wave grade measure module 21 and location Calculation module, sound wave grade measure mould
The input terminal of block 21 is interconnected with each substation unit 1 respectively, the output terminal and location Calculation mould of sound wave grade measure module 21
Block connects；Substation unit 1 is used to detect source of leaks acoustic signals, gathers the fluid letter in pipeline ontology information and corresponding pipeline
Breath, composition data set；Sound wave grade measure module 21 is used to close measure source of leaks according to the group data set being initially received
Sound wave grade Lnoise；Location Calculation module is used to position leakage source position according to source of leaks sound wave rating calculation.
When it is implemented, the principle that spread speed according to sound wave under same operating environment is identical, when adjacent substations unit 1
Between there are during source of leaks, detect source of leaks acoustic signals at first from the substation unit 1 of source of leaks most nearby, and detect at this time
Source of leaks acoustic signals quality it is optimal, then, using sound wave grade measure module 21 according to source of leaks acoustic signals, pipeline
The data acquisition system measure source of leaks sound wave grade Lnoise of fluid information composition in ontology information, pipeline, passes through source of leaks sound
Ripple grade Lnoise judges to whether there is source of leaks on fluid line, and in the case where having monitored source of leaks, utilizes positioning
Computing module positions the specific location of source of leaks according to source of leaks sound wave rating calculation.
By above-mentioned specific implementation process, in fluid line source of leaks monitoring and positioning system provided in this embodiment,
It is made of main station unit 2 and n substation unit 1, main station unit 2 includes sound wave grade measure module 21 and the positioning being attached thereto
Computing module, sound wave grade measure module 21 is interconnected with n substation unit 1 respectively, and each substation unit 1 is along fluid line
Direction is sequentially distributed；The present embodiment is by using the mode that arrangement substation unit 1 is distributed on fluid line so that each substation is single
The fluid line of the corresponding segment of the monitoring in real time of member 1, so that when a bit of fluid line in office leaks, can be by from it
Substation unit 1 most nearby detects source of leaks acoustic signals, then locks the residing stream of the substation unit 1 by main station unit 2
Body pipeline location, can Primary Location source of leaks approximate location.
In addition, substation unit 1 can also gather the fluid information in pipeline ontology information and corresponding pipeline so that sound wave
Grade measures module 21 according to the fluid information measure current leak source in source of leaks acoustic signals, pipeline body information and pipeline
Sound wave grade Lnoise (noise grade), when source of leaks sound wave grade Lnoise is only applicable in the design conditions of infrasound method, then
Source of leaks is calculated to the distance of nearest virgin station unit 1 using infrasound method, when source of leaks sound wave grade Lnoise is only suitable
During with the design conditions of transient model method, then using transient model method be calculated source of leaks to nearest virgin stand unit 1 away from
From, and it is the design conditions for being applicable in infrasound method to work as source of leaks sound wave grade Lnoise, and it is applicable in the calculating bar of transient model method
During part, then using infrasound-transient model method of accuracy higher be calculated source of leaks to nearest virgin stand unit 1 away from
From.
As it can be seen that be compared in the prior art only with infrasound legal position leakage source position for, the present embodiment provides
Fluid line source of leaks monitoring and positioning system can be automatically selected according to source of leaks sound wave grade Lnoise under different operating modes
Source of leaks is calculated to the distance of nearest virgin station unit 1 in appropriate algorithm, in conjunction with fluid hose residing for the unit 1 of nearest virgin station
Road position, and then accurately source of leaks is positioned.
Specifically, please continue to refer to Fig. 1 and 2, the substation unit 1 in above-described embodiment includes the infrasonic sound equipped with GPS module
Wave sensor 11, pressure transmitter 12, flow detector 15 and digitizer 16, infrasonic sensor 11 pass through sensor ball
Valve 13 is connected with fluid line, and pressure transmitter 12 is connected by pressure transmitter ball valve 12 with fluid line, flow detector
15 are located on fluid line, one end of digitizer 16 respectively with infrasonic sensor 11, pressure transmitter 12 and flow detection
Device 15 connects, and the other end of digitizer 16 is connected with sound wave grade measure module 21；Infrasonic sensor 11 is let out for detection
Drain-source acoustic signals, pressure transmitter 12 and flow detector 15 are used to detect the fluid information in pipeline, and fluid information includes
Pipeline instantaneous pressure value and pipeline instantaneous delivery value；Digitizer 16 is used to control infrasonic sensor respectively according to control signal
11st, the on off state of pressure transmitter 12 and flow detector 15, and collection pipeline ontology information, pipeline body information include
Infrasonic sound velocity of wave propagation in pipe roughness, pipe diameter, fluid, pipeline material density, pipe thickness, transmission medium in pipeline
Density and absolute temperature.
When it is implemented, measured according to the fluid information in above-mentioned source of leaks acoustic signals, pipeline body information and pipeline
The method of source of leaks sound wave grade Lnoise is as follows：
Wherein, A is correction factor, ε is pipe roughness, R is noise reduction coefficient, d is pipe diameter, B is temperature production
Raw noise correction coefficient, △ E are data correction coefficient.
Further, the computational methods of noise reduction coefficient R are：
The computational methods of noise correction coefficient B that temperature produces are：
The computational methods of data correction coefficient △ E are：
It should be noted that p represents that pipeline instantaneous pressure value, Q represent pipeline instantaneous delivery value, CWRepresent infrasonic sound in fluid
Velocity of wave propagation, ρWRepresent that pipeline material density, s represent pipe thickness, ρFRepresent that the density of transmission medium in pipeline, T represent exhausted
Fluid flow rate is represented to temperature, V.
By above-mentioned specific implementation process, source of leaks sound is detected using the infrasonic sensor 11 equipped with GPS module
Ripple signal, adds time and positioning label in source of leaks acoustic signals, for excluding network link delay caused by positioning
Influence, work as preceding pipeline in addition, can accurately be measured using high-precision pressure transmitter 12 and high-precision flow detector 15
Interior fluid information, and pipeline ontology information is gathered by digitizer 16 so that the data acquisition system of above-mentioned data composition is accurate
Reflect the actual condition of current circulation duct, and then the data acquisition system is forwarded to by sound wave grade by digitizer 16 and measures mould
Block 21 remotely measures source of leaks sound wave grade Lnoise.
Referring to Fig. 2, in order to improve the sensitivity that infrasonic sensor 11 detects source of leaks acoustic signals, in above-mentioned implementation
Main station unit 2 further include with the main control module 23 that be connected of sound wave grade measure module 21, main control module 23 in reception for letting out
After drain-source sound wave grade Lnoise, gain control signal is discharged；Infrasonic sensor 11 is used for according to gain control signal, amplification
Gain Z.Preferably, gain amplifier Z=5*Lnoise, can so make the gain amplifier reach the maximum of infrasonic sensor 11
Journey, so as to improve detectivity.
It is understood that the quantity that substation unit 1 is set can freely be set according to the length of fluid line, in fluid hose
Under conditions of road total length is certain, 1 quantity of substation unit of setting is more, then the spacing distance of adjacent substations unit 1 is nearer, leads to
Cross substation unit 1 detect fluid leakage signal accuracy it is also higher, and then position leakage source position it is more accurate.Therefore,
The quantity that this implementation is not set substation unit 1 is defined, and those skilled in the art can be according to the actual conditions of fluid line
Unrestricted choice.
Further, please continue to refer to Fig. 2, the location Calculation module in above-described embodiment includes algorithms selection submodule
224 and the infrasound method module 221, transient model method module 222, secondary that is connected respectively with algorithms selection submodule 224
Sound wave-transient model method module 222；Algorithms selection submodule 224 is used to preset Low threshold LLWith high threshold LH, work as source of leaks
Sound wave grade Lnoise ＜ Low thresholds LLWhen, select infrasound method module 221 to position leakage source position, when source of leaks sound wave etc.
Level Lnoise ＞ high thresholds LHWhen, select transient model method module 222 to position leakage source position, as Low threshold LLWhen≤leakage
Source sound wave grade Lnoise≤high threshold LH, select the infrasound-positioning leakage of transient model method module 223 source position；Infrasonic sound
Ripple method module 221 is monitored using infrasound method and is calculated source of leaks to the distance Sc of nearest substation unit 1；Transient model method
Module 222 is monitored using transient model method and is calculated source of leaks to the distance Ss of nearest substation unit 1；Infrasound-transient model
Submodule 223 is monitored using noise normalization method and is calculated source of leaks to the distance Sz, Sz=Gc*Sc+Gs* of nearest substation unit 1
Ss, wherein,
Gs=1-Gc,Exemplary, Low threshold LL=400, high threshold LH=
600。
It is when it is implemented, as follows using the specific method of the legal position leakage source position of infrasound：Source of leaks is in adjacent
Between (n-1)th substation unit 1 and the n-th substation unit 1, and source of leaks is closest to the (n-1)th substation unit 1, measures (n-1)th
The distance between 1 to the n-th substation unit 1 of substation unit is Δ d, then records the n-th substation unit 1 and the (n-1)th substation unit 1 is visited
The time difference Δ t of same source of leaks acoustic signals is measured, and gathers source of leaks under current working environment and sends infrasonic propagation
Speed v1, source of leaks is tried to achieve to the distance of the (n-1)th substation unit 1And then combine the (n-1)th substation unit 1
The position of residing fluid line, realizes and source of leaks is accurately positioned.
Specific method using the legal position leakage source position of transient model is as follows：Draw leakage and preceding pipeline all fronts pressure occurs
Distribution curve, obtains fluid normal discharge Q, draws the boundary condition after leakage occurs in the (n-1)th substation unit 1 and emulates
Line pressure distribution curve, it is Q+ Δs Q to obtain the flow before leakage point1, draw after leakage occurs on the side of the n-th substation unit 1
The line pressure distribution curve that boundary's condition emulates, it is Q- Δs Q to obtain the flow after leakage point2, and obtain the (n-1)th substation
The distance between the substation of unit 1 to the n-th unit 1 is Δ d, is then derived from using the Bernoulli equation of appendix steady flow
For leakage point to the distance Ss of the (n-1)th substation unit 1, calculation formula is as follows：
And then realize and source of leaks is positioned.
Specific method using the legal position leakage source position of infrasound-transient model is as follows：Monitored by noise normalization method
And source of leaks is calculated to distance Sz, the Sz=Gc*Sc+Gs*Ss of the nearest substation unit 1, wherein, Gs=1-Gc,And then realize and source of leaks is positioned.
By above-mentioned specific implementation process, when source of leaks sound wave grade Lnoise is the calculating suitable for infrasound method
Condition, but suitable for transient model method design conditions when, at this moment system select infrasound-transient model submodule according to currently
Source of leaks sound wave grade Lnoise under work condition environment, what the distance Sc and transient model method measured respectively to infrasound method was measured
Distance Ss carries out weight segmentation and calculates to obtain leakage point to the accurate distance of the (n-1)th substation unit 1, and it is positioned, and compares
For positioning result is calculated using fixed algorithm combination specific operation environmental parameter in the prior art, the present embodiment knot
Source of leaks sound wave grade Lnoise has been closed, make use of noise normalization method to carry out measuring and calculating analysis to source of leaks, therefore obtained positioning
As a result it is more accurate.
Embodiment two
3 are referred to, an embodiment of the present invention provides a kind of fluid line source of leaks monitoring and positioning method, including：
Source of leaks acoustic signals are detected, gather the fluid information in pipeline ontology information and corresponding pipeline, composition data
Set；
The data acquisition system measure source of leaks sound wave grade Lnoise according to one group be initially received；
The leakage source position is positioned according to the source of leaks sound wave rating calculation.
Preferably, after measure obtains source of leaks sound wave grade Lnoise, gain control is discharged using main control module 23
Signal so that infrasonic sensor 11 is according to gain control signal, gain amplifier Z.
Preferably, the method that the group data set that the basis is initially received closes measure source of leaks sound wave grade Lnoise
Including：
Wherein, A is correction factor, ε is pipe roughness, R is noise reduction coefficient, d is pipe diameter, B is temperature production
Raw noise correction coefficient, △ E are data correction coefficient.
Further, the computational methods of the noise reduction coefficient R are：
The computational methods for the noise correction coefficient B that the temperature produces are：
The computational methods of the data correction coefficient △ E are：
Wherein, p represents that pipeline instantaneous pressure value, Q represent pipeline instantaneous delivery value, CWRepresent that infrasound propagates speed in fluid
Degree, ρWRepresent that pipeline material density, s represent pipe thickness, ρFRepresent that the density of transmission medium in pipeline, T represent absolute temperature, V
Represent fluid flow rate.
Preferably, it is described according to source of leaks sound wave grade, corresponding selection infrasound method, transient model method, infrasound-transient state
The method of any of modelling positioning leakage source position includes：
Low threshold L is preset using algorithms selection submodule 224LWith high threshold LH；
Judge the source of leaks sound wave grade Lnoise and the Low threshold LLWith the high threshold LHRelation；
As source of leaks sound wave grade Lnoise ＜ Low thresholds LLWhen, select infrasound method module 221 to use infrasound method
Monitor and calculate source of leaks to the distance Sc of the nearest substation unit 1；
As source of leaks sound wave grade Lnoise ＞ high thresholds LHWhen, select transient model method module 222 to use transient state mould
Type method monitors and calculates source of leaks to the distance Ss of the nearest substation unit 1；
As Low threshold LLWhen≤source of leaks sound wave grade Lnoise≤high threshold LH, select infrasound-transient model submodule
223 using noise normalization methods monitor and calculate source of leaks to recently the substation unit 1 distance Sz, Sz=Gc*Sc+Gs*Ss,
Wherein, Gs=1-Gc,
Compared with prior art, the beneficial effect of fluid line source of leaks monitoring and positioning method provided in an embodiment of the present invention
Identical with the beneficial effect for the fluid line leak position system that above-described embodiment one provides, this will not be repeated here.
Can be with it will appreciated by the skilled person that realizing that all or part of step in above-described embodiment method is
Instruct relevant hardware to complete by program, program can be stored in computer read/write memory medium, the program
Upon execution, each step of above-described embodiment method is included, and the storage medium can be：ROM/RAM, magnetic disc, CD,
Storage card etc..
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of fluid line source of leaks monitoring and positioning system, it is characterised in that a including main station unit and n substation unit, n
The substation unit is sequentially distributed along fluid line direction, and each substation unit is connected with the fluid line respectively, n >=2；
Wherein, the main station unit includes sound wave grade measure module and location Calculation module, and the sound wave grade measures the defeated of module
Enter end to interconnect with each substation unit respectively, the output terminal and the location Calculation mould of the sound wave grade measure module
Block connects；
The substation unit is used to detect source of leaks acoustic signals, gathers the fluid letter in pipeline ontology information and corresponding pipeline
Breath, composition data set；
The sound wave grade measure module is used for data acquisition system measure source of leaks sound wave etc. according to one group be initially received
Level Lnoise；
The location Calculation module is used to position the leakage source position according to the source of leaks sound wave rating calculation.
2. a kind of fluid line source of leaks monitoring and positioning system according to claim 1, it is characterised in that the substation is single
Member includes infrasonic sensor, pressure transmitter, flow detector and digitizer equipped with GPS module, the infrasound
Sensor is connected by sensor ball valve with the fluid line, the pressure transmitter by pressure transmitter ball valve with it is described
Fluid line connects, and the flow detector is located on the fluid line, one end of the digitizer respectively with described time
Sonic sensor, the pressure transmitter are connected with the flow detector, the other end of the digitizer and the sound wave
Grade measure module connection；
The infrasonic sensor is used to detect the source of leaks acoustic signals, the pressure transmitter and the flow detector
For detecting the fluid information in pipeline, the fluid information includes pipeline instantaneous pressure value p and pipeline instantaneous delivery value Q；
The digitizer is used to control the infrasonic sensor, the pressure transmitter and described respectively according to control signal
The on off state of flow detector, and the collection pipeline body information, the pipeline body information include pipe roughness
Infrasonic sound velocity of wave propagation C in ε, pipe diameter d, fluidW, pipeline material density pW, pipe thickness s, transmission medium is close in pipeline
Spend ρFAnd absolute temperature T.
A kind of 3. fluid line source of leaks monitoring and positioning system according to claim 1, it is characterised in that the main website list
Member further includes the main control module being connected with sound wave grade measure module, and the main control module is used to receive the source of leaks sound
Ripple grade Lnoise, and discharge gain control signal；
The infrasonic sensor is additionally operable to according to the gain control signal, gain amplifier Z.
A kind of 4. fluid line leak position system according to claim 1 or 3, it is characterised in that the positioning meter
Calculating module includes algorithms selection submodule and the infrasound method submodule being connected respectively with the algorithms selection submodule, transient state
Modelling submodule, infrasound-transient model method submodule；
The algorithms selection submodule is used to preset Low threshold LLWith high threshold LH, when the low thresholds of source of leaks sound wave grade Lnoise ＜
Value LLWhen, select infrasound method module to position the leakage source position, as source of leaks sound wave grade Lnoise ＞ high thresholds LH
When, select transient model method module to position the leakage source position, as Low threshold LLWhen≤source of leaks sound wave grade Lnoise
≤ high threshold LH, select infrasound-transient model method module to position the leakage source position；
The infrasound method module is monitored using infrasound method and calculates source of leaks to the distance Sc of the nearest substation unit；
The transient model method module using transient model method monitor and calculate source of leaks to recently the substation unit away from
From Ss；
The infrasound-transient model submodule is monitored using noise normalization method and calculates source of leaks to the nearest substation unit
Distance Sz, Sz=Gc*Sc+Gs*Ss, wherein,
Gs=1-Gc,
A kind of 5. fluid line leak position system according to claim 4, it is characterised in that the gain amplifier Z
=5*Lnoise, the Low threshold LL=400, the high threshold LH=600.
6. a kind of fluid line source of leaks monitoring and positioning method, it is characterised in that applied to the fluid line described in claim 1
In leak position system, the described method includes：
Source of leaks acoustic signals are detected, gather the fluid information in pipeline ontology information and corresponding pipeline, composition data set；
The data acquisition system measure source of leaks sound wave grade Lnoise according to one group be initially received；
The leakage source position is positioned according to the source of leaks sound wave rating calculation.
7. fluid line source of leaks monitoring and positioning method according to claim 6, it is characterised in that leaked in measure
After the sound wave grade Lnoise of source, gain control signal is discharged using main control module so that infrasonic sensor is according to gain control
Signal processed, gain amplifier Z.
8. the fluid line source of leaks monitoring and positioning method according to claim 6 or 7, it is characterised in that the basis is most
The method that the group data set first received closes measure source of leaks sound wave grade Lnoise includes：
<mrow>
<msub>
<mi>L</mi>
<mrow>
<mi>n</mi>
<mi>o</mi>
<mi>i</mi>
<mi>s</mi>
<mi>e</mi>
</mrow>
</msub>
<mo>=</mo>
<mfrac>
<mrow>
<mi>A</mi>
<mo>&times;</mo>
<mi>&epsiv;</mi>
</mrow>
<mrow>
<mi>R</mi>
<mo>-</mo>
<mfrac>
<mn>2</mn>
<mrow>
<mn>5</mn>
<mo>&times;</mo>
<mi>d</mi>
</mrow>
</mfrac>
<mo>-</mo>
<mfrac>
<mrow>
<mi>sinh</mi>
<mrow>
<mo>(</mo>
<mi>B</mi>
<mo>)</mo>
</mrow>
</mrow>
<mi>B</mi>
</mfrac>
<mo>+</mo>
<mi>&Delta;</mi>
<mi>E</mi>
</mrow>
</mfrac>
</mrow>
Wherein, A is correction factor, ε is pipe roughness, R is noise reduction coefficient, d is pipe diameter, B is what temperature produced
Noise correction coefficient, △ E are data correction coefficient.
9. fluid line source of leaks monitoring and positioning method according to claim 8, it is characterised in that the noise attentuation system
Number R computational methods be：
<mrow>
<mi>R</mi>
<mo>=</mo>
<mn>9.85</mn>
<mo>+</mo>
<mfrac>
<mrow>
<msub>
<mi>c</mi>
<mi>w</mi>
</msub>
<mo>&times;</mo>
<msub>
<mi>&rho;</mi>
<mi>w</mi>
</msub>
<mo>&times;</mo>
<mi>s</mi>
</mrow>
<mrow>
<msub>
<mi>c</mi>
<mi>F</mi>
</msub>
<mo>&times;</mo>
<msub>
<mi>&rho;</mi>
<mi>F</mi>
</msub>
<mo>&times;</mo>
<mi>d</mi>
</mrow>
</mfrac>
<mo>,</mo>
</mrow>
<mrow>
<msub>
<mi>c</mi>
<mi>F</mi>
</msub>
<mo>=</mo>
<msqrt>
<mfrac>
<mrow>
<mn>1.4</mn>
<mo>&times;</mo>
<mi>p</mi>
<mo>&times;</mo>
<msup>
<mn>10</mn>
<mn>5</mn>
</msup>
</mrow>
<msub>
<mi>&rho;</mi>
<mi>F</mi>
</msub>
</mfrac>
</msqrt>
<mo>,</mo>
</mrow>
The computational methods for the noise correction coefficient B that the temperature produces are：
<mrow>
<mi>B</mi>
<mo>=</mo>
<mfrac>
<mn>1</mn>
<mi>d</mi>
</mfrac>
<mo>&times;</mo>
<mfrac>
<mrow>
<mn>2</mn>
<mo>&times;</mo>
<msup>
<mn>10</mn>
<mrow>
<mo>-</mo>
<mn>0.1</mn>
<mo>&times;</mo>
<mi>R</mi>
</mrow>
</msup>
<mo>+</mo>
<mi>&alpha;</mi>
<mo>&times;</mo>
<mi>d</mi>
</mrow>
<mn>8.69</mn>
</mfrac>
<mo>,</mo>
</mrow>
<mrow>
<mi>&alpha;</mi>
<mo>=</mo>
<mfrac>
<mrow>
<mn>4.9</mn>
<mo>&times;</mo>
<msup>
<mn>10</mn>
<mrow>
<mo>-</mo>
<mn>4</mn>
</mrow>
</msup>
</mrow>
<mi>d</mi>
</mfrac>
<mo>&times;</mo>
<msqrt>
<msup>
<mi>p</mi>
<mrow>
<mo>-</mo>
<mn>1</mn>
</mrow>
</msup>
</msqrt>
<msup>
<mrow>
<mo>&lsqb;</mo>
<mfrac>
<mi>T</mi>
<mn>296</mn>
</mfrac>
<mo>&rsqb;</mo>
</mrow>
<mn>0.25</mn>
</msup>
<mo>&times;</mo>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>+</mo>
<mn>11</mn>
<mo>&times;</mo>
<mfrac>
<mi>v</mi>
<msub>
<mi>c</mi>
<mi>F</mi>
</msub>
</mfrac>
<mo>)</mo>
</mrow>
<mo>,</mo>
</mrow>
The computational methods of the data correction coefficient △ E are：
<mrow>
<mi>&Delta;</mi>
<mi>E</mi>
<mo>=</mo>
<mfrac>
<mn>8.69</mn>
<mi>d</mi>
</mfrac>
<mo>&times;</mo>
<msup>
<mn>10</mn>
<mrow>
<mo>-</mo>
<mn>0.1</mn>
<mo>&times;</mo>
<mi>R</mi>
</mrow>
</msup>
<mo>+</mo>
<mi>&alpha;</mi>
<mo>,</mo>
</mrow>
<mrow>
<mi>v</mi>
<mo>=</mo>
<mfrac>
<mrow>
<mn>4</mn>
<mo>&times;</mo>
<mi>Q</mi>
</mrow>
<mrow>
<mi>&pi;</mi>
<mo>&times;</mo>
<msup>
<mi>d</mi>
<mn>2</mn>
</msup>
</mrow>
</mfrac>
<mo>;</mo>
</mrow>
Wherein, p represents that pipeline instantaneous pressure value, Q represent pipeline instantaneous delivery value, CWRepresent infrasonic sound velocity of wave propagation, ρ in fluidW
Represent that pipeline material density, s represent pipe thickness, ρFRepresent that the density of transmission medium in pipeline, T represent that absolute temperature, V represent
Fluid flow rate.
10. fluid line source of leaks monitoring and positioning method according to claim 6, it is characterised in that the location Calculation
Module includes algorithms selection submodule, infrasound method submodule, transient model method submodule and infrasound-transient model method submodule
Block, described according to source of leaks sound wave grade, appointing in corresponding selection infrasound method, transient model method, infrasound-transient model method
A kind of method for positioning leakage source position includes：
Low threshold L is preset using algorithms selection submoduleLWith high threshold LH；
Judge the source of leaks sound wave grade Lnoise and the Low threshold LLWith the high threshold LHRelation；
As source of leaks sound wave grade Lnoise ＜ Low thresholds LLWhen, select infrasound method module to monitor and count using infrasound method
Source of leaks is calculated to the distance Sc of the nearest substation unit；
As source of leaks sound wave grade Lnoise ＞ high thresholds LHWhen, select transient model method module to be monitored using transient model method
And source of leaks is calculated to the distance Ss of the nearest substation unit；
As Low threshold LLWhen≤source of leaks sound wave grade Lnoise≤high threshold LH, select infrasound-transient model submodule to use
Noise normalization method monitors and calculates source of leaks to distance Sz, the Sz=Gc*Sc+Gs*Ss of the nearest substation list, wherein, Gs=
1-Gc,
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| CN108506740A (en) * | 2018-04-26 | 2018-09-07 | 南京缔尔达智能科技有限公司 | A kind of fluid pipeline leakage region based on current meter determines method and system |
| CN109737317A (en) * | 2018-11-20 | 2019-05-10 | 吉林省百瑞生科技发展有限公司 | The infrasound positioning system and method for fluid line 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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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1090106A (en) * | 1996-09-19 | 1998-04-10 | Fuji Tecomu Kk | Leakage-searching apparatus |
| CN102032447A (en) * | 2009-09-30 | 2011-04-27 | 罗仁泽 | System for monitoring urban gas pipeline in real time and using method thereof |
| CN104595729A (en) * | 2015-01-15 | 2015-05-06 | 中国石油大学(华东) | Oil and gas pipeline leakage positioning method based on sound wave amplitude |
| CN105840987A (en) * | 2016-04-25 | 2016-08-10 | 北京宏信环科科技发展有限公司 | Pipeline leakage weighted positioning method and device based on pressure waves and sound waves |
| CN106369289A (en) * | 2016-11-21 | 2017-02-01 | 吉林省百瑞生科技发展有限公司 | Fluid leaking on-line monitoring and positioning system |
| CN106813109A (en) * | 2017-03-15 | 2017-06-09 | 吉林省百瑞生科技发展有限公司 | A kind of fluid leakage on-line monitoring and alignment system and method |
-
2017
- 2017-03-15 CN CN201710151879.3A patent/CN106813109A/en active Pending
- 2017-11-13 CN CN201711115000.6A patent/CN107940246B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1090106A (en) * | 1996-09-19 | 1998-04-10 | Fuji Tecomu Kk | Leakage-searching apparatus |
| CN102032447A (en) * | 2009-09-30 | 2011-04-27 | 罗仁泽 | System for monitoring urban gas pipeline in real time and using method thereof |
| CN104595729A (en) * | 2015-01-15 | 2015-05-06 | 中国石油大学(华东) | Oil and gas pipeline leakage positioning method based on sound wave amplitude |
| CN105840987A (en) * | 2016-04-25 | 2016-08-10 | 北京宏信环科科技发展有限公司 | Pipeline leakage weighted positioning method and device based on pressure waves and sound waves |
| CN106369289A (en) * | 2016-11-21 | 2017-02-01 | 吉林省百瑞生科技发展有限公司 | Fluid leaking on-line monitoring and positioning system |
| CN106813109A (en) * | 2017-03-15 | 2017-06-09 | 吉林省百瑞生科技发展有限公司 | A kind of fluid leakage on-line monitoring and alignment system and method |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506740A (en) * | 2018-04-26 | 2018-09-07 | 南京缔尔达智能科技有限公司 | A kind of fluid pipeline leakage region based on current meter determines method and system |
| CN109737317A (en) * | 2018-11-20 | 2019-05-10 | 吉林省百瑞生科技发展有限公司 | The infrasound positioning system and method for fluid line leakage |
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| 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 |
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| CN111220710B (en) * | 2019-11-07 | 2023-09-08 | 中国石油天然气集团公司管材研究所 | Pipeline stripping monitoring system and monitoring method |
| CN114508704A (en) * | 2020-11-16 | 2022-05-17 | 中国石油天然气股份有限公司 | Pipeline leakage detection method and device and storage medium |
| CN114508704B (en) * | 2020-11-16 | 2024-04-30 | 中国石油天然气股份有限公司 | Pipeline leakage detection method and device and storage medium |
| CN112524497A (en) * | 2020-11-25 | 2021-03-19 | 重庆中节能悦来能源管理有限公司 | Energy pipeline leakage monitoring 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 |
| CN115388343A (en) * | 2022-10-12 | 2022-11-25 | 广东海洋大学 | Efficient method and system for detecting and positioning leakage of marine oil and gas pipeline |
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| CN107940246B (en) | 2019-02-26 |
| CN106813109A (en) | 2017-06-09 |
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Application publication date: 20180420 Assignee: Beijing Aisuo in energy saving and Environmental Protection Technology Co. Ltd. Assignor: Berry Health Technology Co., Ltd. Contract record no.: X2019220000001 Denomination of invention: Fluid pipeline leakage source monitoring and positioning system and method Granted publication date: 20190226 License type: Common License Record date: 20190918 |