CN108119760A - A kind of localization method and system of underground gas pipeline leakage region - Google Patents
A kind of localization method and system of underground gas pipeline leakage region Download PDFInfo
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- CN108119760A CN108119760A CN201711280902.5A CN201711280902A CN108119760A CN 108119760 A CN108119760 A CN 108119760A CN 201711280902 A CN201711280902 A CN 201711280902A CN 108119760 A CN108119760 A CN 108119760A
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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
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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
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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Abstract
The present invention provides a kind of localization method and system of underground gas pipeline leakage region, the described method includes：S1, the real-time monitoring result according to the combustible gas monitor arranged in the adjacent underground space of underground gas pipeline, the gas concentration for determining fuel gas are more than the combustible gas monitor position of predetermined threshold value；S2, corresponded to based on the combustible gas monitor position and the combustible gas monitor monitoring fuel gas gas concentration value, traced to the source algorithm using default combustion gas, estimate the underground gas pipeline scope leaked.The localization method and system of underground gas pipeline leakage region provided by the invention, by arranging combustible gas monitor in the adjacent underground space of underground gas pipeline, so as to monitor combustable gas concentration in real time, further according to concentration and combustible gas monitor location determination gas leakage region, monitoring gas safe and quick lock in leakage region in real time are realized, has ensured urban safety.
Description
Technical field
The present invention relates to monitoring pipeline safety field, more particularly, to a kind of determining for underground gas pipeline leakage region
Position method and system.
Background technology
In recent years, situation occurred frequently is presented in underground gas ductwork security incident.According to incompletely statistics, in 2011-2014 years
Between, for national gas accidents per annual at 800 or more, these accidents cause great casualties and economic loss, by
To the extensive concern of public opinion.
The leakage monitoring of city gas pipeline in a manner of manual inspection based on, by technical staff carry imflammable gas monitoring
The monitoring instruments such as instrument, laser methane monitor carry out leak detection and location to pipeline.
The manual inspection mode that the prior art uses needs to waste substantial amounts of human resources to the progress of each pipeline one by one
Investigation, and is unable to real-time monitoring tubular road situation, when gas leakage occurs can not quick lock in leakage region, to urban safety
Bring very big hidden danger.
The content of the invention
The present invention provides a kind of a kind of underground gas pipe for overcoming the above problem or solving the above problems at least partly
The localization method and system of road leakage region, the described method includes：
S1, the real-time monitoring knot according to the combustible gas monitor arranged in the adjacent underground space of underground gas pipeline
Fruit, the gas concentration for determining fuel gas are more than the combustible gas monitor position of predetermined threshold value；
S2, the fuel gas that monitoring is corresponded to based on the combustible gas monitor position and the combustible gas monitor
Gas concentration value, traced to the source algorithm using default combustion gas, estimate the underground gas pipeline scope leaked.
Wherein, the adjacent underground space of the underground gas pipeline includes combustion gas well, electricity well, bilge well and telecommunications well
One or more.
Wherein, step S1 is specifically included：
Obtain the real-time prison that the combustible gas monitor arranged in the adjacent underground space of all underground gas pipelines is sent
Survey result；
If the monitoring result of any of which combustible gas monitor at any one time is more than predetermined threshold value, alarm letter is generated
Breath, the warning information include combustible gas monitor position, alarm moment and the alarm moment corresponding fuel gas
Gas concentration value.
Wherein, the method further includes：
After the warning information is generated, the real-time monitoring frequency of the combustible gas monitor is improved.
Wherein, the combustible gas monitor is connected into Internet of Things.
Wherein, step S2 includes：
S21, the underground space residing for based on the combustible gas monitor position in the warning information determine at this time
Gas leakage mode；
S22, based on the gas leakage mode, determine to state the corresponding combustion gas diffusion model of gas leakage mode；
S23, the gas concentration value based on definite the combustion gas diffusion model and the fuel gas, using the combustion gas
The corresponding combustion gas of diffusion model is traced to the source algorithm, estimates the underground gas pipeline scope leaked.
Wherein, step S21 is specifically included：
If the underground space residing for combustible gas monitor position in the warning information is in the combustion gas well,
Then determine at this time gas leakage mode for burnt gas valve leak or
If the underground space residing for combustible gas monitor position in the warning information for the bilge well or
In the electricity well, it is determined that gas leakage mode leaks for steel gas pipe underground at this time.
Wherein, step S23 is specifically included：
When the gas leakage mode leaks for the steel gas pipe underground, based on the combustible gas in the warning information
The gas concentration value of body determines the radius of tracing to the source of the corresponding combustion gas diffusion model of the gas leakage mode；
Using the combustible gas monitor position in the warning information as the center of circle, the radius of tracing to the source determines to leak for radius
Underground gas pipeline scope.
Wherein, the gas concentration value of the fuel gas based in the warning information, determines the gas leakage side
The radius of tracing to the source of the corresponding combustion gas diffusion model of formula, specifically includes：
Based on the gas concentration of the fuel gas in the warning information, the road of the combustible gas monitor position is judged
Face overwrite media；
Correspondence based on road surface overwrite media Yu the radius of tracing to the source determines the corresponding combustion of the gas leakage mode
The radius of tracing to the source of gas diffusion model.
According to the second aspect of the invention, a kind of alignment system of underground gas pipeline leakage region is provided, including：
Real-time monitoring modular, for according to the combustible gas monitor arranged in the adjacent underground space of underground gas pipeline
Real-time monitoring result, determine fuel gas gas concentration be more than predetermined threshold value the combustible gas monitor position；
Zone location module corresponds to for being based on the combustible gas monitor position and the combustible gas monitor
The gas concentration value of the fuel gas of monitoring estimates the underground gas pipeline scope leaked.
The localization method and system of underground gas pipeline leakage region provided by the invention, by underground gas pipeline phase
Combustible gas monitor is arranged in the adjacent underground space, so as to monitor combustable gas concentration in real time, further according to concentration and combustible gas
Body monitor location determination gas leakage region realizes monitoring gas safe and quick lock in leakage region in real time, ensures
Urban safety.
Description of the drawings
Fig. 1 is a kind of localization method flow chart of underground gas pipeline leakage region provided in an embodiment of the present invention；
Fig. 2 is that different road surfaces overwrite media provided in an embodiment of the present invention is traced to the source scope schematic diagram；
Fig. 3 is a kind of positioning system structure figure of underground gas pipeline leakage region provided in an embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
Fig. 1 is a kind of localization method flow chart of underground gas pipeline leakage region provided in an embodiment of the present invention, such as Fig. 1
It is shown, the described method includes：
S1, the real-time monitoring knot according to the combustible gas monitor arranged in the adjacent underground space of underground gas pipeline
Fruit, the gas concentration for determining fuel gas are more than the combustible gas monitor position of predetermined threshold value；
S2, the fuel gas that monitoring is corresponded to based on the combustible gas monitor position and the combustible gas monitor
Gas concentration value, traced to the source algorithm using default combustion gas, estimate the underground gas pipeline scope leaked.
In the prior art, for the leakage monitoring of city gas pipeline, personal monitoring's stage, i.e. technology people are still rested on
Member carries the monitoring instruments such as imflammable gas monitor, laser methane monitor and carries out leak detection and location to pipeline.
But when gas leakage occurs, it can not be occurred using the method for personal monitoring in first time quick lock in
The position and region of gas leakage until combustion gas diffusion is handled again to a certain extent, make urban environment and safety
Into influencing, so now need a kind of localization method of underground gas pipeline leakage region fast and accurately determine combustion gas
The region of leakage, so as to ensure urban safety.
The localization method and system of underground gas pipeline leakage region provided in an embodiment of the present invention, by underground gas
Arrange combustible gas monitor in the adjacent underground space of pipeline, so as to monitoring combustable gas concentration in real time, further according to concentration and
Combustible gas monitor location determination gas leakage region realizes monitoring gas safe and quick lock in leakage region in real time.
Specifically, in S1, the combustible gas monitor is i.e. to single or many combustible gases concentration-response detector.
Common combustible gas monitor has catalytic type, infrared optics type two types, it is to be understood that the embodiment of the present invention provides
Combustible gas monitor the fuel gas type that needs monitor can be set, and it is real-time in space to obtain fuel gas in real time
Gas concentration.
In S1, it is to be understood that the fuel gas prison is disposed in the adjacent underground space of underground gas pipeline
Instrument is surveyed, generally, there are one the combustible gas monitorings for corresponding arrangement in the adjacent underground space of a underground gas pipeline
Instrument in special circumstances, such as in the case of the underground space situation complexity, can be disposed with multiple combustible gas monitors.
Preferably, in order to save resource, for the position of combustible gas monitor, easy generation is arranged in as far as possible
In the adjacent underground space of the underground gas pipeline of leakage, the easy underground gas pipeline leaked for example more than 20 years with
On pipeline, the neighbouring pipeline in pipeline or the loose section of geology etc. of subway.
In S2, it is to be understood that each combustible gas monitor can be by the gas for the fuel gas that itself is measured
Concentration value reports, and then according to combustible gas monitor position and concentration, corresponds to what is provided using the embodiment of the present invention
Scope determines rule, estimates the underground gas pipeline scope leaked.
Further, the default combustion gas is traced to the source, and to be the embodiment of the present invention propose not algorithm for different leakage situations
With the algorithm for the underground gas pipeline scope for calculating leakage, by the way that combustible gas monitor position and the fuel gas are supervised
The gas concentration value for surveying the fuel gas that instrument corresponds to monitoring inputs the algorithm, and the underground gas pipeline scope of leakage can be carried out
One is substantially estimated.
On the basis of above-described embodiment, the adjacent underground space of the underground gas pipeline include combustion gas well, electricity well,
The one or more of bilge well and telecommunications well.
It should be noted that the combustion gas well of above-mentioned offer, electricity well, bilge well and telecommunications well be all directly or indirectly with
The underground space of gas pipeline contact, this kind of underground space are usually to carry out opening and closing the operation of part pipe network
Or it is convenient during upkeep operation, a hole shape structure of similar cubicle is just set, the switching devices such as valve are arranged in underground
Space, enables to operating personnel to inspect periodically, clean and dredging pipeline.
On the basis of above-described embodiment, step S1 is specifically included：
Obtain the real-time prison that the combustible gas monitor arranged in the adjacent underground space of all underground gas pipelines is sent
Survey result；
If the monitoring result of any of which combustible gas monitor at any one time is more than predetermined threshold value, alarm letter is generated
Breath, the warning information include combustible gas monitor position, alarm moment and the alarm moment corresponding fuel gas
Gas concentration value.
Specifically, an embodiment of the present invention provides data upload and storage systems, sent to obtain combustible gas monitor
Real time data, data upload and acquisition system system mainly by front end monitoring network, special metro transport network, data acquisition
Platform, data storage server are formed.It is connection distribution to realize data remote transmission, acquisition, storage and remote control function
The bridge of formula front end sensory perceptual system and background analysis processing platform, is important support safeguards system.
Further, network transmission provided in an embodiment of the present invention needs to take into full account the data of front end sensing equipment output
The factors such as amount, signal type, frequency and live distance, network environment, it is ensured that the safe and stable and real-time biography of data transmission
It is defeated, and the scattered internet of things sensors laid is transmitted using GPRS or NB-IOT wireless modes, to reduce network O＆M cost.
When data upload and storage system in the real time data that records have any combustible gas monitor at any one time
When monitoring result is more than predetermined threshold value, warning information is automatically generated, the warning information includes combustible gas monitor position, accuses
Alert moment and the gas concentration value of the alarm moment corresponding fuel gas, combustion gas can be calculated based on warning information
The region of leakage.
On the basis of above-described embodiment, the method further includes：
After the warning information is generated, the real-time monitoring frequency of the combustible gas monitor is improved.
It is understood that when a certain moment monitors that the data of wherein some combustible gas monitor monitoring have been more than pre-
If threshold value, in order to obtain more reliable and more stable duration data, the embodiment of the present invention will improve the real-time of combustible gas monitor
Monitoring frequency.
On the basis of above-described embodiment, the combustible gas monitor is connected into Internet of Things.
It should be noted that with Internet of Things, the development of big data technology, the application of internet of things sensors is progressively replaced
The manual inspection of generation routine, internet of things sensors is since good advantage that is accurate, efficient, stablizing is in the monitoring of underground gas pipeline
Field has increasingly consequence.
Combustible gas monitor provided in an embodiment of the present invention is connected into Internet of Things, specifically using internet of things sensors.
Preferably, internet of things sensors provided in an embodiment of the present invention uses laser sensor, and gas employing mode uses
Air suction type gathers, resolution ratio 0.01%vol.
Further, the waterproof type of internet of things sensors provided in an embodiment of the present invention uses：Running into ponding can be automatic
Alarm, 0.5 meter and 1 meter of depth of water impregnate be more than 168 it is small when after can work normally, when 1.5 meters of depth of waters impregnate small more than 48 after energy
Normal work.
Internet of things sensors provided in an embodiment of the present invention uses the housing of hydrogen sulfide corrosion-resistant, and is prevented using special process
Corruption processing.
Internet of things sensors provided in an embodiment of the present invention is explosion-proof using intrinsic safety type, and the intrinsic safety type is essential safe type
Referred to as, i.e., all circuits inside it are all the electrical equipments of intrinsicallysafecircuit.
On the basis of above-described embodiment, step S2 includes：
S21, the underground space residing for based on the combustible gas monitor position in the warning information determine at this time
Gas leakage mode；
S22, based on the gas leakage mode, determine to state the corresponding combustion gas diffusion model of gas leakage mode；
S23, the gas concentration value based on definite the combustion gas diffusion model and the fuel gas, using the combustion gas
The corresponding combustion gas of diffusion model is traced to the source algorithm, estimates the underground gas pipeline scope leaked.
Fig. 2 is that different road surfaces overwrite media provided in an embodiment of the present invention is traced to the source scope schematic diagram, as seen from Figure 2, combustion
Distance and road surface overwrite media are maximally diffused after gas leakage larger association.Coating is the preferable shape of friable soil in general
Under condition, gas leakage is earthward spread in the soil in a funnel shaped, and the ground that can directly emerge is without cement or mixed
The road surface of solidifying soil covering.When surface is covered with cement or concrete, since the porosity of cement and concrete is much smaller than soil
Porosity, the gas quantity spread out by unit area concrete road surface are reduced, when one timing of combustion gas total amount of diffusion, diffusion
Scope increases, so when surface covering cement or concrete, range of scatter will be enlarged by.R1, R2, R3 in Fig. 2 are corresponded to respectively to be situated between
Matter is three kinds of situations of greenbelt, pavement brick and cement, its radius of tracing to the source of different medium is different.
Step S21 is specifically included：
If the underground space residing for combustible gas monitor position in the warning information is in the combustion gas well,
Then determine at this time gas leakage mode for burnt gas valve leak or
If the underground space residing for combustible gas monitor position in the warning information for the bilge well or
In the electricity well, it is determined that gas leakage mode leaks for steel gas pipe underground at this time.
The gas leakage mode is a variety of situations that the gas leakage summed up according to historical experience occurs.According to history
Summary of experience obtains, and natural gas is diffused with two ways after leakage, and when burnt gas valve leaks, main diffusion zone is
Valve well；When steel gas pipe underground leaks, neighbouring rain sewage conduct or cable tube are on the one hand diffused to by soil
In ditch (electricity row), on the other hand when gas pipeline with rain sewage conduct and cable pipe trench when space intersections when the gas that spreads it is direct
Into in rain sewage conduct and cable pipe trench, downstream diffusion is continued up further along pipeline.
So corresponding, by way of leakage, an embodiment of the present invention provides different corresponding combustion gas diffusion models.
On the basis of above-described embodiment, step S22 is specifically included：
When the gas leakage mode for the steel gas pipe underground through soil diffusion leakage when, based on the warning information
In fuel gas gas concentration value, determine the radius of tracing to the source of the corresponding combustion gas diffusion model of the gas leakage mode；
Using the combustible gas monitor position in the warning information as the center of circle, the radius of tracing to the source determines to leak for radius
Underground gas pipeline scope.
The gas concentration value of the fuel gas based in the warning information determines that the gas leakage mode corresponds to
Combustion gas diffusion model radius of tracing to the source, specifically include：
Based on the gas concentration of the fuel gas in the warning information, the road of the combustible gas monitor position is judged
Face overwrite media；
Correspondence based on road surface overwrite media Yu the radius of tracing to the source determines the corresponding combustion of the gas leakage mode
The radius of tracing to the source of gas diffusion model.
If the underground space residing for combustible gas monitor position in the warning information is the sewage
In well or the electricity well, it is determined that gas leakage mode specifically includes for steel gas pipe underground leakage at this time：
If the underground space residing for combustible gas monitor position in the warning information for the bilge well or
In the electricity well, and the warning information is not generated in the upstream and downstream well of the combustible gas monitor position, it is determined that this
When gas leakage mode be steel gas pipe underground through soil diffusion leakage；Or
If the underground space residing for combustible gas monitor position in the warning information for the bilge well or
In the electricity well, and the warning information is also generated in the upstream and downstream well of the combustible gas monitor position, it is determined that this
When gas leakage mode be steel gas pipe underground pipeline internal leakage.
Specifically, the mode of three kinds of gas leakages is provided in above-described embodiment, then the corresponding embodiment of the present invention carries
The corresponding combustion gas diffusion model of three kinds of difference gas leakage modes has been supplied, further, according to different combustion gas diffusion models, has been made
The underground gas pipeline range computation leaked with different algorithms.
When being to monitor fuel gas at the first time in burnt gas valve well, then the underground gas pipeline of leakage can determine
It is leaked for burnt gas valve.
When bilge well or electricity well monitor fuel gas at the first time, and do not monitored in the upstream and downstream well of monitoring point can
Combustion gas body, it may be determined that diffuse to monitoring point by soil for periphery fuel gas pipeline leakage, then the underground gas of gas leakage
Pipeline scope be using monitoring point as the center of circle, radius be trace to the source radius circle in all pipelines included, wherein, specifically
It is leak position with the position that gas pipeline intersects.
Such as：Certain inspection shaft A nearby has gas pipeline, when gas leakage occurs, since its periphery overwrite media is cement,
Then using A as the center of circle, R3 draws circle for radius, and it is the gas pipeline that can be leaked to find all gas pipelines in the region.
When bilge well or electricity well monitor fuel gas at the first time, and also monitored in the upstream and downstream well of monitoring point can
Combustion gas body, it may be determined that the gas spread for gas pipeline and rain sewage pipeline and cable pipe trench when space intersections is directly entered
In rain sewage pipeline and cable pipe trench, downstream diffusion is continued up further along pipeline.So the embodiment of the present invention will be with Gas Pipe
Road is drawn with the space intersections such as rain sewage pipeline and cable pipe trench position with radius of tracing to the source to be justified, and is with the position that gas pipeline intersects
Leak position.
Above-mentioned monitoring point is combustible gas monitor position provided in an embodiment of the present invention, and has generated alarm letter at this time
Breath.
By algorithm provided in an embodiment of the present invention of tracing to the source, the underground gas pipeline model leaked can be quickly estimated
It encloses, so as to inform that related personnel is handled immediately, improves security.
Fig. 3 is a kind of positioning system structure figure of underground gas pipeline leakage region provided in an embodiment of the present invention, such as Fig. 3
It is shown, a kind of alignment system of underground gas pipeline leakage region, including：Real-time monitoring modular 1 and zone location module 2,
Wherein：
Real-time monitoring modular 1 is used for according to the combustible gas monitor arranged in the adjacent underground space of underground gas pipeline
Real-time monitoring result, determine fuel gas gas concentration be more than predetermined threshold value the combustible gas monitor position；
Zone location module 2 is used to correspond to based on the combustible gas monitor position and the combustible gas monitor
The gas concentration value of the fuel gas of monitoring is traced to the source algorithm using default combustion gas, estimates the underground gas pipeline leaked
Scope.
Specifically, the embodiment of the present invention essentially provides a kind of alignment system of underground gas pipeline leakage region, bag
Internet of things sensors monitoring subsystem is included, i.e., real-time monitoring modular 1, data upload and storage system and leakage point trace to the source and be
System, i.e. zone location module 2.
It can monitor the combustable gas concentration of underground gas pipeline in real time by real-time monitoring modular 1, then by fuel gas
Concentration carries out real time data interaction and storage by data upload and storage system, is preset when monitoring that combustable gas concentration exceeds
During threshold value, zone location module 2 provided in an embodiment of the present invention can alarm rapidly and automatic adjustment height front end internet of things sensors
Monitoring frequency, it may be determined that nearby burning line is source of leaks for the monitoring point of alarm at the first time, and then system combines natural
Gas leakage is traced to the source model, and meter level positioning is carried out to burning line leak position.
The alignment system of underground gas pipeline leakage region provided by the invention, by the adjacent ground of underground gas pipeline
Combustible gas monitor is arranged in down space, so as to monitor combustable gas concentration in real time, further according to concentration and combustible gas monitoring
Instrument location determination gas leakage region realizes monitoring gas safe and quick lock in leakage region in real time, has ensured city peace
Entirely.
Finally, the present processes are only preferable embodiment, are not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modifications, equivalent replacements and improvements are made should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a kind of localization method of underground gas pipeline leakage region, which is characterized in that including：
S1, the real-time monitoring result according to the combustible gas monitor arranged in the adjacent underground space of underground gas pipeline, really
The gas concentration for determining fuel gas is more than the combustible gas monitor position of predetermined threshold value；
S2, the gas that the fuel gas monitored is corresponded to based on the combustible gas monitor position and the combustible gas monitor
Bulk concentration value is traced to the source algorithm using default combustion gas, estimates the underground gas pipeline scope leaked.
2. according to the method described in claim 1, it is characterized in that, the adjacent underground space of the underground gas pipeline includes combustion
Gas well, electricity well, the one or more of bilge well and telecommunications well.
3. according to the method described in claim 2, it is characterized in that, step S1 is specifically included：
Obtain the real-time monitoring knot that the combustible gas monitor arranged in the adjacent underground space of all underground gas pipelines is sent
Fruit；
If the monitoring result of any of which combustible gas monitor at any one time is more than predetermined threshold value, warning information is generated,
The warning information includes the gas of combustible gas monitor position, alarm moment and the alarm moment corresponding fuel gas
Bulk concentration value.
4. according to the method described in claim 3, it is characterized in that, the method further includes：
After the warning information is generated, the real-time monitoring frequency of the combustible gas monitor is improved.
5. according to the method described in claim 3, it is characterized in that, the combustible gas monitor is connected into Internet of Things.
6. according to the method described in claim 3, it is characterized in that, step S2 includes：
S21, the underground space residing for based on the combustible gas monitor position in the warning information determine combustion gas at this time
Leakage way；
S22, based on the gas leakage mode, determine to state the corresponding combustion gas diffusion model of gas leakage mode；
S23, the gas concentration value based on definite the combustion gas diffusion model and the fuel gas are spread using the combustion gas
The corresponding combustion gas of model is traced to the source algorithm, estimates the underground gas pipeline scope leaked.
7. according to the method described in claim 6, it is characterized in that, step S21 is specifically included：
If the underground space residing for combustible gas monitor position in the warning information is in the combustion gas well, really
Fixed gas leakage mode at this time leaked for burnt gas valve or
If the underground space residing for combustible gas monitor position in the warning information is the bilge well or described
In electricity well, it is determined that gas leakage mode leaks for steel gas pipe underground at this time.
8. the method according to the description of claim 7 is characterized in that step S23 is specifically included：
When the gas leakage mode leaks for the steel gas pipe underground, based on the fuel gas in the warning information
Gas concentration value determines the radius of tracing to the source of the corresponding combustion gas diffusion model of the gas leakage mode；
Using the combustible gas monitor position in the warning information as the center of circle, the radius of tracing to the source determines the ground of leakage for radius
Lower gas pipeline scope.
9. the according to the method described in claim 8, it is characterized in that, gas of the fuel gas based in the warning information
Bulk concentration value determines the radius of tracing to the source of the corresponding combustion gas diffusion model of the gas leakage mode, specifically includes：
Based on the gas concentration of the fuel gas in the warning information, judge that the road surface of the combustible gas monitor position is covered
Lid medium；
Correspondence based on road surface overwrite media Yu the radius of tracing to the source determines that the corresponding combustion gas of the gas leakage mode is expanded
Dissipate the radius of tracing to the source of model.
10. a kind of alignment system of underground gas pipeline leakage region, which is characterized in that including：
Real-time monitoring modular, for the reality according to the combustible gas monitor arranged in the adjacent underground space of underground gas pipeline
When monitoring result, determine fuel gas gas concentration be more than predetermined threshold value the combustible gas monitor position；
Zone location module corresponds to monitoring for being based on the combustible gas monitor position and the combustible gas monitor
Fuel gas gas concentration value, traced to the source algorithm using default combustion gas, estimate the underground gas pipeline scope leaked.
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| CN110043806A (en) * | 2019-05-16 | 2019-07-23 | 哈尔滨工业大学 | It is traced to the source based on two o'clock optimizing the method for positioning combustion gas direct-burried pipeline leakage point |
| CN110107815A (en) * | 2018-11-08 | 2019-08-09 | 清华大学合肥公共安全研究院 | The leakage detection method and device of gas pipeline |
| CN110134054A (en) * | 2019-05-24 | 2019-08-16 | 北京航星网讯技术股份有限公司 | Flammable air valve chamber measure and control device |
| CN110440143A (en) * | 2019-08-12 | 2019-11-12 | 北京航星网讯技术股份有限公司 | Monitoring and warning system based on laser gas detecting devices |
| WO2020015354A1 (en) * | 2018-07-17 | 2020-01-23 | 北京讯腾智慧科技股份有限公司 | Method and system for repairing gas pipeline based on beidou differential positioning |
| WO2020052146A1 (en) * | 2018-09-11 | 2020-03-19 | 清华大学合肥公共安全研究院 | Method and apparatus for determining gas leak, and electronic device |
| CN112197176A (en) * | 2020-09-28 | 2021-01-08 | 广州东部发展燃气有限公司 | Gas leakage detection system |
| CN112413409A (en) * | 2019-08-23 | 2021-02-26 | 中国石油天然气股份有限公司 | Petroleum pipeline alarm system and petroleum pipeline monitoring alarm method |
| CN113218601A (en) * | 2021-04-29 | 2021-08-06 | 深圳市利拓光电有限公司 | Combustible gas leakage detection method, device and equipment based on laser sensor |
| CN113217822A (en) * | 2021-05-07 | 2021-08-06 | 宝武清洁能源有限公司 | Gas safety shield system of hydrogenation station |
| CN113435727A (en) * | 2021-06-22 | 2021-09-24 | 安徽泽众安全科技有限公司 | Method for acquiring gas diffusion range under single-point alarm of communication pipeline |
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