CN108930914B - Gas leakage source tracing method and device - Google Patents
Gas leakage source tracing method and device Download PDFInfo
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- CN108930914B CN108930914B CN201810482649.XA CN201810482649A CN108930914B CN 108930914 B CN108930914 B CN 108930914B CN 201810482649 A CN201810482649 A CN 201810482649A CN 108930914 B CN108930914 B CN 108930914B
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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
-
- 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
Abstract
The embodiment of the present invention provides a kind of gas leakage source tracing method and device, this method comprises: if judgement knows that gas leakage occurs for gas ductwork, the then combustion gas diffusion property in the adjacent underground space based on gas ductwork, the location information of the gas concentration value and the adjacent underground space in the adjacent underground space obtained according to detection predicts the target burning line that gas leakage occurs in gas ductwork.Method and device provided in an embodiment of the present invention can be predicted to obtain the target burning line that gas leakage occurs due to need to only detect the gas concentration value in the adjacent underground space of gas ductwork, and gas leakage is traced to the source high-efficient.At the same time, widely applicable, old pipeline can be suitable for, and at low cost.
Description
Technical field
The present embodiments relate to detection technique fields, more particularly, to a kind of gas leakage source tracing method and device.
Background technique
Due to many artificial and natural causes, there are a degree of security risks for burning line.Gas pipeline leakage
The explosive incident of initiation brings massive losses to the safety of life and property of the people.Therefore, in the feelings for detecting gas leakage
Under condition, the target burning line leaked is navigated to accurately and in time, maintenance department is repaired in time, reduces accident damage
Lose important in inhibiting.In the related technology, punching detection method or optical fiber detecting method are generallyd use to position target fuel gas conduit
Line.Wherein, that there are accuracy is low for punching detection method, implements slow-footed defect, and optical fiber detecting method is needed along fuel gas conduit
Line is laid with sensor fibre, haves the defects that at high cost and is not suitable for old burning line.
Summary of the invention
To solve the above-mentioned problems, the embodiment of the present invention provides one kind and overcomes the above problem or at least be partially solved
State the gas leakage source tracing method and device of problem.
According to a first aspect of the embodiments of the present invention, a kind of gas leakage source tracing method is provided, this method comprises:
If judgement knows that gas leakage occurs for gas ductwork, the combustion gas in the adjacent underground space based on gas ductwork is expanded
Characteristic is dissipated, the location information of the gas concentration value and the adjacent underground space in the adjacent underground space obtained according to detection, in advance
It surveys in gas ductwork and the target burning line of gas leakage occurs.
Method provided in an embodiment of the present invention knows that gas leakage occurs for gas ductwork by judgement, is then based on fuel gas conduit
Combustion gas diffusion property in the adjacent underground space of net, according in the obtained adjacent underground space of detection gas concentration value and
The location information of the adjacent underground space predicts the target burning line that gas leakage occurs in gas ductwork.Due to only needing to detect
Gas concentration value in the adjacent underground space of gas ductwork can be predicted to obtain the target burning line that gas leakage occurs, combustion
Gas leakage is traced to the source high-efficient.At the same time, widely applicable, old pipeline can be suitable for, and at low cost.
Second aspect according to embodiments of the present invention, provides a kind of gas leakage and traces to the source device, which includes:
Prediction module, if for judging to know that gas leakage occurs for gas ductwork, under being adjacent to based on gas ductwork
Combustion gas diffusion property in space, the gas concentration value and the adjacent underground space in the adjacent underground space obtained according to detection
Location information, predict gas ductwork in occur gas leakage target burning line.
According to a third aspect of the embodiments of the present invention, it provides a kind of gas leakage to trace to the source equipment, which includes:
At least one processor；And
At least one processor being connect with processor communication, in which:
Memory is stored with the program instruction that can be executed by processor, and the instruction of processor caller is able to carry out first party
Gas leakage source tracing method provided by any possible implementation in the various possible implementations in face.
According to a fourth aspect of the embodiments of the present invention, a kind of non-transient computer readable storage medium is provided, it is non-transient
Computer-readable recording medium storage computer instruction, computer instruction make the various possible realities of computer execution first aspect
Gas leakage source tracing method provided by any possible implementation in existing mode.
It should be understood that above general description and following detailed description be it is exemplary and explanatory, can not
Limit the embodiment of the present invention.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.It should be evident that the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these figures.
Fig. 1 is a kind of flow diagram of gas leakage source tracing method of the embodiment of the present invention；
Fig. 2 is the target burning line schematic diagram of the separate space of the embodiment of the present invention；
Fig. 3 is the target burning line schematic diagram of the connected space of the embodiment of the present invention；
Fig. 4 is the range of scatter schematic diagram of the different medium type of the embodiment of the present invention；
Fig. 5 is that a kind of gas leakage of the embodiment of the present invention is traced to the source the structural schematic diagram of equipment.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
Urban Buried Pipeline Network usually has multiple functions, such as information transmitting, energy delivery, water drainage mitigation and waste row
It puts.Therefore, the gas ductwork in city usually intersects with underground spaces such as Storm Sewer Network, sewage network and market place builet below the grounds or phase
It is adjacent.It is adjacent that above-mentioned adjacent with gas ductwork or all kinds of pipe networks, facility, equipment or space for being connected etc. are referred to alternatively as gas ductwork
The underground space.When gas ductwork leaks, combustion gas is in addition to it is adjacent also to diffuse to gas ductwork in gas ductwork internal leakage
The underground space.Based on the above principles, the embodiment of the present invention provides a kind of gas leakage source tracing method, comprising: if combustion is known in judgement
Gas leakage occurs for gas pipe network, then the combustion gas diffusion property in the adjacent underground space based on gas ductwork, obtains according to detection
The adjacent underground space in gas concentration value and the adjacent underground space location information, predict gas ductwork in combustion gas occurs
The target burning line of leakage.
Specifically, judge whether gas ductwork occurs leakage and can use various ways, such as set on gas ductwork periphery
Gas sensor is set, if gas sensor detects certain density combustion gas, can confirm that gas leakage occurs for gas ductwork, this
The mode whether inventive embodiments occur gas leakage to detection gas ductwork is not construed as limiting.Due to burning line dense distribution in
The underground space in city, and when gas leakage occurs for gas ductwork, one section be generally only in burning line leaks, will
This pipeline section leaked in burning line is known as target burning line.
Since combustion gas can diffuse to the adjacent underground space from target burning line, and the diffusion of combustion gas is spread based on combustion gas
Characteristic, therefore, the gas concentration value for finally diffusing to the adjacent underground space is by combustion gas diffusion property and to be adjacent to lower sky
Between relative positional relationship between target gas ductwork determine.Above-mentioned combustion gas diffusion property can by include temperature, distance and
The various aspects parameter such as gas type is determining, for example, if other conditions are the same, the closer phase of distance objective burning line
The adjacent underground space, gas concentration value are bigger.In another example if other conditions are the same, the temperature of the adjacent underground space is got over
Height, combustion gas are spread faster.Therefore, it in the case where obtaining adjacent underground space internal combustion gas diffusion property, can be based on adjacent
The location information of gas concentration value and the adjacent underground space in the underground space, traces back to target burning line.
Method provided in an embodiment of the present invention knows that gas leakage occurs for gas ductwork by judgement, is then based on fuel gas conduit
Combustion gas diffusion property in the adjacent underground space of net, according in the obtained adjacent underground space of detection gas concentration value and
The location information of the adjacent underground space predicts the target burning line that gas leakage occurs in gas ductwork.Due to only needing to detect
Gas concentration value in the adjacent underground space of gas ductwork can be predicted to obtain the target burning line that gas leakage occurs, combustion
Gas leakage is traced to the source high-efficient.At the same time, widely applicable, old pipeline can be suitable for, and at low cost.
The adjacent underground space can be divided into connected space and separate space according to connectivity.Wherein, connected space and others
Space is connected, and combustion gas can diffuse to other spaces from the current adjacent underground space, and connected space includes Storm Sewer Network, dirt
Pipe network etc..Separate space only includes a space, and separate space is not connected with other spaces, and combustion gas only can be in separate space
Interior diffusion, separate space include inspection shaft etc..Due to connected space with the combustion gas diffusion property in separate space be it is different, because
This, for the target burning line in Accurate Prediction gas ductwork, content based on the above embodiment, combustion gas diffusion property is by phase
The connectivity of the adjacent underground space determines, as a kind of alternative embodiment, provides under a kind of being adjacent to based on the gas ductwork
Combustion gas diffusion property in space, according to gas concentration value in the obtained adjacent underground space of detection and described adjacent
The location information of the underground space, the method for predicting that the target burning line of gas leakage occurs in the gas ductwork, including but
It is not limited to:
If judging the connectivity for knowing the adjacent underground space not to be connected to, the combustion gas diffusion property based on separate space,
According to the location information of gas concentration value and the adjacent underground space in the adjacent underground space, the generation in gas ductwork is predicted
The target burning line of gas leakage.Specifically, if the adjacent underground space is separate space, the combustion gas based on separate space is expanded
Scattered characteristic can know that the combustion gas in the adjacent underground space is inevitable from the combustion gas diffusion that target gas ductwork leaks.
If judge to know the connectivity of the adjacent underground space as connection, the combustion gas diffusion property based on connected space, root
According to the location information of gas concentration value a certain range of in connected space locating for the adjacent underground space and the adjacent underground space,
Predict the target burning line that gas leakage occurs in gas ductwork.Specifically, it if the adjacent underground space is connected space, is based on
The diffusion property of connected space can know, the combustion gas that the adjacent underground space detects may be spread by other connected spaces and
Come, or from directly being spread by target gas ductwork.The case where accordingly, with respect to separate space, needs to expand lookup target
The range of burning line, to need to predict target burning line according to a certain range of gas concentration value of connected space.
Method provided in an embodiment of the present invention, by determining combustion gas diffusion property based on the connectivity of the adjacent underground space,
Target burning line is predicted based on combustion gas diffusion property again.Since the connectivity based on the adjacent underground space is carried out target respectively
The prediction of burning line, it is contemplated that combustion gas improves the standard of prediction in the diffusion property of the adjacent underground space of different connectivity
Exactness.
Connectivity for the adjacent underground space is disconnected situation, content based on the above embodiment, as one kind
Alternative embodiment provides a kind of combustion gas diffusion property based on separate space, dense according to the combustion gas in the adjacent underground space
The location information of angle value and the adjacent underground space predicts the target combustion gas of the generation gas leakage in the gas ductwork
The method of pipeline, including but not limited to: first object area is obtained according to the location information of the adjacent underground space and gas concentration value
Domain will be located at the burning line in first object region as target burning line；Wherein, first object region includes with adjacent
The location point of the underground space as the center of circle, using the first combustion gas diffusion length as the border circular areas of radius, the first combustion gas diffusion away from
It is determined from by gas concentration value.
Referring to fig. 2, when the adjacent underground space is separate space, such as when inspection shaft (i.e. alarm inspection shaft in Fig. 2).Based on only
The combustion gas diffusion property in vertical space is justified using the location point for inspection shaft of alarming as the center of circle by radius work of the first combustion gas diffusion length R,
Obtain first object region.Above-mentioned first combustion gas diffusion length is combustion gas diffusion maximum distance, and the first combustion gas diffusion length R can
Determine that in the same conditions, concentration value is higher by the gas concentration value in separate space, the first combustion gas diffusion length is got over
It is small.After obtaining first object region, all burning line L in first object region are foundi, i=1,2,3 ... n1, n1It is positive
Integer, the union of all burning lines are the target burning line that possible leak.
The case where connectivity for the adjacent underground space is connection, content based on the above embodiment, can as one kind
Embodiment is selected, a kind of combustion gas diffusion property based on connected space is provided, according to the sky of connection locating for the adjacent underground space
The location information of interior a certain range of gas concentration value and the adjacent underground space, predicts to occur in the gas ductwork
The method of the target burning line of gas leakage, including but not limited to: according in the adjacent underground space location information and connection
A certain range of gas concentration value obtains the second target area in space, will be located at the burning line in the second target area and makees
For target burning line；Wherein, the second target area includes half-circle area and rectangular area, the diameter side of half-circle area and rectangle
First side in region is overlapped；The center of circle of half-circle area is to trace to the source a little, and tracing to the source a little is the connected space locating for the adjacent underground space
The location point that distance of tracing to the source is set apart from the adjacent underground space, tracing to the source a little includes trace to the source starting point and/or terminal of tracing to the source；Half-circle area
Radius be the second combustion gas diffusion length, the second combustion gas diffusion length determines by the gas concentration value traced to the source a little；Rectangular area
It is distance of tracing to the source with the first length in second connect, rectangular area is phase with the first midpoint in opposite third
The location point of the adjacent underground space.
Referring to Fig. 3, when the adjacent underground space is connected space, such as in Fig. 3, the adjacent underground space is alarm inspection shaft A,
And A be connected well when.Due to the connectivity of connected well, the combustion gas in adjacent underground space A may be by the other positions of connected well
Into A's.Therefore, B and C point, B are obtained with distance (such as 30m) of tracing to the source before and after distance A of the inspection shaft A on connected space that alarm
It is to trace to the source a little with C, it, can be using B as starting point of tracing to the source, using C as terminal of tracing to the source, the present invention according to the flow direction in connected well
Embodiment is not construed as limiting this.Then it can detect the gas concentration value of B point and C point, and farthest expand determined according to gas concentration value
Dissipate distance, the as radius of half-circle area.After above-mentioned half-circle area determines, can there is following two mode to determine rectangular area:
The first, the length on the first side of rectangular area is the diameter of half-circle area, and the length on third side can be by the combustion gas of alarm inspection shaft A
Concentration value determines；By connect the diameter of half-circle area while vertex and endpoint when third, available rectangular area.Second
Kind, the center of circle (i.e. B point) of half-circle area is moved to C point along the pipeline of connected well, wherein the area of all experience in moving process
Domain is as the second target area.After obtaining the second target area, all burning line L in the second target area are foundi, i
=1,2,3 ... n2, n2For positive integer, the union of all burning lines is the target burning line that possible leak.
When combustion gas is spread in the adjacent underground space, other than being spread to periphery, it can also spread upwards.Under being adjacent to
When space is covered with different types of medium, the range that combustion gas can be spread is different.Based on the above principles and above-mentioned reality
The content of example is applied, the first combustion gas diffusion length is determined by the media type of gas concentration value and the adjacent underground space, and medium is to cover
Cover the medium of the adjacent underground space.Second combustion gas diffusion length by trace to the source gas concentration value and the adjacent underground space a little medium
Type determines that medium is the medium for covering the adjacent underground space.
Specifically, referring to fig. 4, when media type is soil or meadow, the medium of covering is the ideal shape of friable soil
It under condition, and is covered on soil or meadow without cement, pitch or concrete, then the combustion gas leaked is in an infundibulate in the soil
Shape is spread to the ground, and the ground that can directly emerge, so that range of scatter is smaller.In this case, combustion gas range of scatter
For R1.When media type is pavement brick: since the porosity of pavement brick is less than porosity of soil, greater than cement or concrete
Porosity, range of scatter R2, R2>R1.When media type is cement, pitch or concrete: since its porosity is much smaller than
Porosity of soil is reduced, range of scatter R3, R by the gas quantity that unit area concrete road surface is spread out3>R2>R1。
Therefore, the first combustion gas diffusion length and the second combustion gas diffusion length are in addition to related to the gas concentration value in the adjacent underground space
Outside, also related with the media type of the adjacent underground space.
Content based on the above embodiment provides a kind of judgement and knows gas ductwork as a kind of alternative embodiment
The method of gas leakage, including but not limited to: the gas concentration value in the adjacent underground space of gas ductwork is detected, if combustion gas is dense
Angle value is greater than concentration threshold, then confirms that gas leakage occurs for gas ductwork.Specifically, it is adjacent to since gas leakage can diffuse to
Down space, therefore can determine whether gas ductwork itself occurs combustion gas and let out by the gas concentration value in the adjacent underground space
Leakage.
Content based on the above embodiment, traces to the source device the embodiment of the invention provides a kind of gas leakage, which lets out
Leakage traces to the source device for executing the gas leakage source tracing method in above method embodiment.The device includes: prediction module, is used for
If judgement knows gas ductwork and occurs gas leakage, the combustion gas diffusion property in the adjacent underground space based on gas ductwork,
The location information of the gas concentration value and the adjacent underground space in the adjacent underground space obtained according to detection, predicts fuel gas conduit
The target burning line of gas leakage occurs in net.
Specifically, prediction module judges whether gas ductwork occurs leakage and can use various ways, such as in fuel gas conduit
Gas sensor, which is arranged, in net week side can confirm that gas ductwork fires if gas sensor detects certain density combustion gas
Gas leakage, the mode whether embodiment of the present invention occurs gas leakage to detection gas ductwork are not construed as limiting.Due to burning line
Dense distribution is in the underground space in city, and when gas leakage occurs for gas ductwork, be generally only in burning line one section
It leaks, this pipeline section leaked in burning line is known as target burning line.
Since combustion gas can diffuse to the adjacent underground space from target burning line, and the diffusion of combustion gas is spread based on combustion gas
Characteristic, therefore, the gas concentration value for finally diffusing to the adjacent underground space is by combustion gas diffusion property and to be adjacent to lower sky
Between relative positional relationship between target gas ductwork determine.Above-mentioned combustion gas diffusion property can by include temperature, distance and
The various aspects parameter such as gas type is determining, for example, if other conditions are the same, the closer phase of distance objective burning line
The adjacent underground space, gas concentration value are bigger.In another example if other conditions are the same, the temperature of the adjacent underground space is got over
Height, combustion gas are spread faster.Therefore, prediction module is in the case where obtaining adjacent underground space internal combustion gas diffusion property, can be with
Based on the location information of gas concentration value and the adjacent underground space in the adjacent underground space, target burning line is traced back to.
Device provided in an embodiment of the present invention is known that gas leakage occurs for gas ductwork by prediction module judgement, is based on
Combustion gas diffusion property in the adjacent underground space of gas ductwork, the gas concentration in the adjacent underground space obtained according to detection
The location information of value and the adjacent underground space predicts the target burning line that gas leakage occurs in gas ductwork.Due to only
The gas concentration value in the adjacent underground space of gas ductwork, which need to be detected, can predict to obtain the target combustion gas that gas leakage occurs
Pipeline, gas leakage are traced to the source high-efficient.At the same time, widely applicable, old pipeline can be suitable for, and at low cost.
As a kind of alternative embodiment, combustion gas diffusion property is determined by the connectivity of the adjacent underground space；Correspondingly, it predicts
Module, comprising:
First predicting unit, if for judging the connectivity for knowing the adjacent underground space not to be connected to, based on independent empty
Between combustion gas diffusion property, according to the location information of gas concentration value and the adjacent underground space in the adjacent underground space, in advance
Survey the target burning line of the generation gas leakage in gas ductwork；
Second predicting unit, if for judging that the connectivity for knowing the adjacent underground space to be connected to, is based on connected space
Combustion gas diffusion property, according to gas concentration value a certain range of in connected space locating for the adjacent underground space and be adjacent to
The location information of down space predicts the target burning line that gas leakage occurs in gas ductwork.
As a kind of alternative embodiment, the first predicting unit is specifically used for: according to the location information of the adjacent underground space and
Gas concentration value obtains first object region, will be located at the burning line in first object region as target burning line；Its
In, first object region includes using the location point of the adjacent underground space as the center of circle, using the first combustion gas diffusion length as radius
Border circular areas, the first combustion gas diffusion length determines by gas concentration value.
As a kind of alternative embodiment, the first combustion gas diffusion length is by gas concentration value and the medium class of the adjacent underground space
Type determines that medium is the medium for covering the adjacent underground space.
As a kind of alternative embodiment, the second predicting unit is specifically used for: according to the location information in the adjacent underground space
And a certain range of gas concentration value obtains the second target area in connected space, will be located at the combustion gas in the second target area
Pipeline is as target burning line；Wherein, the second target area includes half-circle area and rectangular area, the diameter side of half-circle area
It is overlapped with the first side of rectangular area；The center of circle of half-circle area is to trace to the source a little, and tracing to the source a little is the company locating for the adjacent underground space
Logical space, the location point of distance of tracing to the source apart from the setting of the adjacent underground space, tracing to the source a little includes trace to the source starting point and/or terminal of tracing to the source；
The radius of half-circle area is the second combustion gas diffusion length, and the second combustion gas diffusion length is determined by the gas concentration value traced to the source a little；Square
Shape region is to trace to the source distance with the first length in second connect, rectangular area with first in opposite third
Midpoint is the location point of the adjacent underground space.
As a kind of alternative embodiment, the second combustion gas diffusion length is by the gas concentration value and the adjacent underground space traced to the source a little
Media type determine, medium is the medium for covering the adjacent underground space.
As a kind of alternative embodiment, prediction module includes: confirmation unit, sky under being adjacent to for detecting gas ductwork
Interior gas concentration value confirms that gas leakage occurs for gas ductwork if gas concentration value is greater than concentration threshold.
It traces to the source equipment the embodiment of the invention provides a kind of gas leakage, as shown in figure 5, the equipment includes: processor
(processor) 501, memory (memory) 502 and bus 503；
Wherein, processor 501 and memory 502 complete mutual communication by bus 503 respectively；Processor 501 is used
In calling the program instruction in memory 502, to execute gas leakage source tracing method provided by above-described embodiment, such as wrap
Include: if judgement knows that gas leakage occurs for gas ductwork, the combustion gas in the adjacent underground space based on gas ductwork is spread special
Property, the location information of the gas concentration value and the adjacent underground space in the adjacent underground space obtained according to detection, prediction combustion
The target burning line of gas leakage occurs in gas pipe network.
The embodiment of the present invention also provides a kind of non-transient computer readable storage medium, the non-transient computer readable storage
Medium storing computer instruction, the computer instruction make computer execute the gas leakage side of tracing to the source provided by corresponding embodiment
Method, for example, if judgement knows that gas leakage, the combustion in the adjacent underground space based on gas ductwork occur for gas ductwork
Believe the position of gas diffusion property, the gas concentration value and the adjacent underground space in the adjacent underground space obtained according to detection
Breath predicts the target burning line that gas leakage occurs in gas ductwork.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
Gas leakage described above embodiments such as equipment of tracing to the source are only schematical, wherein saying as separation unit
Bright unit may or may not be physically separated, and component shown as a unit can be or can not also
It is physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to actual need
Some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying
Out in the case where creative labor, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Certain Part Methods of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. a kind of gas leakage source tracing method characterized by comprising
If judgement knows that gas leakage occurs for gas ductwork, the combustion gas in the adjacent underground space based on the gas ductwork is expanded
Characteristic is dissipated, the position of the gas concentration value and the adjacent underground space in the adjacent underground space obtained according to detection
Information predicts the target burning line that gas leakage occurs in the gas ductwork；
Wherein, the combustion gas diffusion property is determined by the connectivity of the adjacent underground space；
Correspondingly, the combustion gas diffusion property in the adjacent underground space based on the gas ductwork is obtained according to detection
The location information of gas concentration value and the adjacent underground space in the adjacent underground space, predicts the gas ductwork
The middle target burning line that gas leakage occurs, comprising:
If judge the connectivity for knowing the adjacent underground space not to be connected to, the combustion gas diffusion property based on separate space,
According to the location information of gas concentration value and the adjacent underground space in the adjacent underground space, the combustion gas is predicted
The target burning line of generation gas leakage in pipe network；
If judge to know the connectivity of the adjacent underground space as connection, the combustion gas diffusion property based on connected space, root
According to a certain range of gas concentration value in connected space locating for the adjacent underground space and the adjacent underground space
Location information predicts the target burning line that gas leakage occurs in the gas ductwork；
Wherein, the combustion gas diffusion property based on separate space, according to the gas concentration value in the adjacent underground space with
And the location information of the adjacent underground space, predict the target burning line of the generation gas leakage in the gas ductwork,
Include:
First object region is obtained according to the location information of the adjacent underground space and the gas concentration value, will be located at described
Burning line in first object region is as the target burning line；Wherein, the first object region includes with described
The location point of the adjacent underground space is as the center of circle, using the first combustion gas diffusion length as the border circular areas of radius, first combustion
Gas diffusion length is determined by the gas concentration value.
2. the method according to claim 1, wherein the first combustion gas diffusion length is by the gas concentration value
And the media type of the adjacent underground space determines that the medium is the medium for covering the adjacent underground space.
3. the method according to claim 1, wherein the combustion gas diffusion property based on connected space, according to
The position of a certain range of gas concentration value and the adjacent underground space in connected space locating for the adjacent underground space
Confidence breath predicts the target burning line that gas leakage occurs in the gas ductwork, comprising:
It is obtained according to a certain range of gas concentration value in the location information and the connected space in the adjacent underground space
The second target area is obtained, the burning line in second target area will be located at as the target burning line；Wherein, institute
Stating the second target area includes half-circle area and rectangular area, the diameter side of the half-circle area and the first of the rectangular area
Side is overlapped；The center of circle of the half-circle area is to trace to the source a little, described to trace to the source a little as the sky of the connection locating for the adjacent underground space
Between, the location point of distance of tracing to the source apart from the adjacent underground space setting, described trace to the source a little starting point and/or trace to the source end including tracing to the source
Point；The radius of the half-circle area is the second combustion gas diffusion length, and the second combustion gas diffusion length is by the combustion traced to the source a little
Gas concentration value determines；The rectangular area is the distance of tracing to the source with the described first length in second connect, described
Rectangular area is the location point of the adjacent underground space with the described first midpoint in opposite third.
4. according to the method described in claim 3, it is characterized in that, the second combustion gas diffusion length is by the combustion traced to the source a little
The media type of gas concentration value and the adjacent underground space determines that the medium is Jie for covering the adjacent underground space
Matter.
5. the method according to claim 1, wherein the judgement knows that gas leakage, packet occur for gas ductwork
It includes:
The gas concentration value in the adjacent underground space of the gas ductwork is detected, if the gas concentration value is greater than concentration threshold
Value then confirms that gas leakage occurs for the gas ductwork.
The device 6. a kind of gas leakage is traced to the source characterized by comprising
Prediction module, if for judging to know that gas leakage occurs for gas ductwork, under being adjacent to based on the gas ductwork
Combustion gas diffusion property in space, according to gas concentration value in the obtained adjacent underground space of detection and described adjacent
The location information of the underground space predicts the target burning line that gas leakage occurs in the gas ductwork；
Combustion gas diffusion property is determined by the connectivity of the adjacent underground space；Correspondingly, prediction module, comprising:
First predicting unit, if for judging the connectivity for knowing the adjacent underground space not to be connected to, based on separate space
Combustion gas diffusion property, according to the location information of gas concentration value and the adjacent underground space in the adjacent underground space, prediction combustion
The target burning line of generation gas leakage in gas pipe network；
Second predicting unit, if for judge to know the connectivity of the adjacent underground space as connection, the combustion based on connected space
Gas diffusion property according to gas concentration value a certain range of in connected space locating for the adjacent underground space and is adjacent to lower sky
Between location information, predict gas ductwork in occur gas leakage target burning line；
Wherein, the first predicting unit is specifically used for: obtaining first according to the location information of the adjacent underground space and gas concentration value
Target area will be located at the burning line in first object region as target burning line；Wherein, first object region includes
Using the location point of the adjacent underground space as the center of circle, using the first combustion gas diffusion length as the border circular areas of radius, the first combustion gas
Diffusion length is determined by gas concentration value.
The equipment 7. a kind of gas leakage is traced to the source characterized by comprising
At least one processor；
And at least one processor being connect with the processor communication, in which:
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to instruct energy
Enough execute method as claimed in claim 1 to 5.
8. a kind of non-transient computer readable storage medium, which is characterized in that the non-transient computer readable storage medium is deposited
Computer instruction is stored up, the computer instruction makes the computer execute method as claimed in claim 1 to 5.
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| CN112664839B (en) * | 2020-11-27 | 2021-12-24 | 合肥泽众城市智能科技有限公司 | Method and system for predicting and tracing combustible gas diffusion of communication pipeline |
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