CN104317844B - A kind of emergency processing method based on pipeline network of fuel gas in city topological analysis - Google Patents
A kind of emergency processing method based on pipeline network of fuel gas in city topological analysis Download PDFInfo
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- CN104317844B CN104317844B CN201410535566.4A CN201410535566A CN104317844B CN 104317844 B CN104317844 B CN 104317844B CN 201410535566 A CN201410535566 A CN 201410535566A CN 104317844 B CN104317844 B CN 104317844B
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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
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Pipeline Systems (AREA)
Abstract
A kind of emergency processing method based on pipeline network of fuel gas in city topological analysis, greatly improve operating efficiency and be precisely controlled the zone of influence of stopping the supple of gas or steam, it is characterized in that, establish pipeline network of fuel gas in city topological relation figure, the topological relation figure includes several key nodes and several described key nodes is connected into the connection line of network structure, the key node refers to that source of the gas, middle pressure lock well, Zhong Ya voltage regulating stations case, low pressure lock well or low pressure voltage regulating station case, the connection line refer to the combustion gas gas flow in pipeline and pipeline；When gas leakage occurs, leakage point position coordinates and leakage line position coordinates are determined by GIS, adjacent and related key node and the simulation pass valve operation in the topological relation figure are determined to leakage line position coordinates according to leakage point position coordinates；The key node for determining to be affected by it is operated by simulation pass valve and all impacted key nodes are marked.
Description
Technical field
The present invention relates to the urgent technique of pipeline network of fuel gas in city, particularly a kind of gas based on topological analysis
Pipe network emergency processing method, be advantageous to emergency preplan that is quick, accurately and efficiently forming pipeline network of fuel gas in city, greatly improve work
Make efficiency and be precisely controlled the zone of influence of stopping the supple of gas or steam.
Background technology
Pipeline network of fuel gas in city is a kind of typical underground pipeline system, has the characteristics that disguised, systematicness and dynamic,
Its crisscross network system is largely embedded in urban underground space, and spatial positional information and attribute information obtain difficulty,
Spatial relationship between pipeline is complicated.Leakage during pipeline network of fuel gas in city operation etc accident be usually it is unavoidable, once thing
Therefore must just carry out closing valve processing when occurring, to avoid the sprawling of accident and organize the rescue work in time.Due to many reasons, mesh
It is preceding to gas pipe network accidents when close valving scheme determine research never obtain good progress.Method main at present
That valve-turnoff analysis is realized under GIS platform, first obtain accident point where pipeline section rise, not-go-end point, then respectively with rise, not-go-end
Centered on point, the pipeline section being attached thereto by certain search radius (often very little) search is traveled through, and finally gives correlation
Valve.This method is relatively easy realization, results contrast image, but its analytical conclusions is unreliable, additionally, due to by search half
Footpath and the influence in combustion gas stream direction, the conclusion that this method is drawn may cause pass valve scope excessive.Described two methods simultaneously
Be merely resting in the aspect of valve-turnoff analysis, not further on close valve after caused by influence to analyze.And because cities and towns are fired
Gas pipe network has had begun to laying in the situation that computer is not carried out generally, and many data messages are imperfect, and this is also resulted in
GIS data information it is incomplete.
The content of the invention
For defect present in prior art or deficiency, the present invention provides a kind of gas pipe based on topological analysis
Net emergency processing method, be advantageous to emergency preplan that is quick, accurately and efficiently forming pipeline network of fuel gas in city, greatly improve work
Efficiency and it is precisely controlled the zone of influence of stopping the supple of gas or steam.
Technical scheme is as follows：
A kind of pipeline network of fuel gas in city emergency processing method based on topological analysis, it is characterised in that establish gas pipe
Net topology graph of a relation, the topological relation figure include several key nodes and several described key nodes are connected into network
The connection line of structure, the key node refer to source of the gas, middle pressure lock well, Zhong Ya voltage regulating stations case, low pressure lock well or low pressure pressure regulation
Stand case, the connection line refers to the combustion gas gas flow in pipeline and pipeline；When gas leakage occurs, determined by GIS
Leakage point position coordinates and leakage line position coordinates, determined according to leakage point position coordinates and leakage line position coordinates adjacent
And related key node and the simulation pass valve operation in the topological relation figure；Valve operation is closed by the simulation to determine by it
Simultaneously all impacted key nodes are marked for the key node of influence.
The statistics of specific impacted gas-fired equipment is drawn in all impacted key nodes.
Affected user number is determined by impacted key node.
Described adjacent and related key node refers to the key node nearest apart from the leakage point.
Following simulated operation is carried out for the key node nearest apart from the leakage point：If the key node is unidirectional
Directed connection, then the valve of the key node is directly closed, the valve is defined as closing valve object；If the key node is two-way
Connection, then find out the upper level or upstream key node of the key node, carried out valve shutoff operation, be defined as closing
Valve object.
All impacted key nodes are determined using breadth first traversal method and finally determine affected user.
The breadth first traversal method includes, to close valve object as basic point, searching for all not accessed neighbours downwards
Key node is connect, then from adjacent key node, the adjoining key node that they are not accessed is accessed successively, until all
The key node for having directed connection with basic point is all accessed, and the topology of the basic point terminates, and determines impacted key node.
By impacted key node, key node information is read, this leakage accident is counted and closes Valve Event institute shadow
Loud number of users.
The technique effect of the present invention is as follows：A kind of pipeline network of fuel gas in city emergency processing side based on topological analysis of the present invention
Method, on the basis of gas ductwork GIS data is not complete, the topological analysis figure of gas ductwork is built, and applied to gas ductwork
In emergency preplan, by the consideration to pipe network figure, in the method for topological analysis, the closing valving scheme optimized, and calculate
The key node influenceed and the number of users of influence are obtained, user is presented in graph form, reduces the dependence to linear data, greatly
It is big to improve operating efficiency and be precisely controlled the zone of influence of stopping the supple of gas or steam.
Brief description of the drawings
Fig. 1 is emergency preplan method and step figure.
Fig. 2 is the pipe network topological diagram for certain source of the gas that structure is completed.
Fig. 3 is topological analysis flow chart.
Fig. 4 is that emergency preplan closes valve operation demonstration graph.Shown in Fig. 4, the lock well shown in the figure confirms as the upper of leak point
Node is swum, after having carried out pass valve operation, the voltage adjusting device shown in black shade is impacted pass valve object, shares and is pressed in 2
Voltage adjusting device, 4 low pressure voltage adjusting devices, the voltage adjusting device influenceed is bigger, while reads this 6 voltage adjusting devices, counts
Impacted civilian family is 2344 families, and it is 234 families that public affairs, which take family,.Wherein described civilian family is ordinarily resident user, and public affairs take family
For public service user.
Reference lists as follows in figure：S1~S3- steps 1 are to step 3；1- sources of the gas；Lock well is pressed in 2- first；3- second
Middle pressure lock well；Lock well is pressed in 4- the 3rd；Lock well is pressed in 5- the 4th；The Zhong Ya voltage regulating stations of 6- the 6th/case；The Zhong Ya voltage regulating stations of 7- the 5th/
Case；8- low pressure voltage regulating station/case；The Zhong Ya voltage regulating stations of 9- the 4th/case；The Zhong Ya voltage regulating stations of 10- the 3rd/case；Pressure regulation is pressed in 11- second
Stand/case；The first Zhong Ya of 12- voltage regulating stations/case；13- the first low pressure lock wells；14- the second low pressure lock wells；The low pressure lock wells of 15- the 3rd；
The low pressure lock wells of 16- the 4th；The low pressure lock wells of 17- the 5th.
Embodiment
Below in conjunction with the accompanying drawings (Fig. 1-Fig. 4) the present invention will be described.
Fig. 1 is emergency preplan method and step figure.As shown in figure 1, step S1：With the station in pipeline network of fuel gas in city, at different levels
Voltage regulating station (case), lock well are as key node.Key node Basic Information Table and key node are had by core of key node
Relation information table, wherein key node essential information include the coordinate on GIS pipe network maps, flow to type, key node state
Deng.Key node relation includes the fields such as higher level's key node, subordinate's key node, weight.Wherein described key node is
Station, Zhong Ya voltage regulating stations (case), low pressure voltage regulating station (case), middle pressure lock well in pipeline network of fuel gas in city, low pressure lock well.
Step S2：Link relation of the combustion gas gas flow between key point between two neighboring key point.Adjacent two
Link relation of the combustion gas gas flow between key point between individual key point.Key point and key in pipeline network of fuel gas in city
Link relation between point constitutes pipeline network of fuel gas in city UNICOM network topology figure, as shown in Figure 2.
Step S3：Topological analysis calculating is carried out, valve operation is closed in simulation.
Step S3-1：Determine leakage line position.When gas leakage occurs, the position coordinates where leakage point is determined,
Determine the pipeline position where the leakage point.
Step S3-2：It is determined that close valve object.According to the pipeline position of leakage, the nearest crucial section of the chosen distance leakage point
Point, judge that the key node is bi-directionally connected or unidirectional directed connection.If unidirectional directed connection, then the pass is directly closed
The valve of key node, the valve are defined as closing valve object；If being bi-directionally connected, then the upper level for finding out the key node is crucial
Node, valve shutoff operation is carried out, be defined as closing valve object.
Step S3-3：It is determined that closing valve influences object.Using the pass valve object as basic point, it is excellent that oriented range is done to the basic point
First search for, search all next stage key nodes under the key node, then all key nodes under the key node are then
This leakage accident closes the key node object that Valve Event is influenceed.Wherein BFS, it is determined that influenceing crucial section
The flow of point is as shown in Figure 3：Using key node as basic point, all not accessed adjoining key nodes are searched for downwards, then
From adjacent key node, access the adjoining key node that they are not accessed successively, until it is all have with basic point it is oriented
The key node of connection is all accessed, and the topology of the basic point terminates, it is determined that influenceing key node.
Step S3-4：By the impacted key node object of determination, this information of reading key node, count this time and let out
The number of users that leakage emergency closure Valve Event is influenceed.As shown in figure 4, the lock well shown in the figure confirms as the upstream section of leak point
Point, after having carried out pass valve operation, the voltage adjusting device shown in black shade is impacted pass valve object, shares in 2 and presses pressure regulation
Equipment, 4 low pressure voltage adjusting devices, the voltage adjusting device influenceed is bigger, while reads this 6 voltage adjusting devices, counts by shadow
Loud civilian family is 2344 families, and it is 234 families that public affairs, which take family,.Wherein described civilian family is ordinarily resident user, and public affairs take family as public affairs
Service user altogether.
Station, voltage regulating station at different levels (case), lock well in pipeline network of fuel gas in city as key node, two neighboring key point it
Between link relation of the combustion gas gas flow between key point.The connection between key point and key point in pipeline network of fuel gas in city
Clearance system constitutes pipeline network of fuel gas in city UNICOM network topology figure.In pipeline network of fuel gas in city UNICOM network topology figure
On the basis of, topological analysis calculating is carried out, is on the one hand upstream to find as leakage pipe supply most centered on leakage point
Near valve, then the valve is closed；On the other hand impacted key node is determined using breadth first traversal method, most
Affected user is determined eventually.The valve is the control unit in fuel gas transmission system, have cut-off, regulation, water conservancy diversion, prevent it is non-return
The functions such as stream, voltage stabilizing, shunting or overflow pressure relief.
The breadth first traversal method is a kind of traversal strategies of connected graph, and its thought is opened from a summit V0
Begin, radial ground first traversal region wider around it.Its basic thought is：1st, some summit V0 from figure, and
Access this summit；2nd, from V0, V0 each abutment points W1, W2 ..., Wk not accessed is accessed；Then, successively from W1,
W2 ..., Wk, which sets out, accesses each not accessed abutment points；3rd, repeat step 2, untill all accessed until whole summits.
Emergency processing method based on pipeline network of fuel gas in city topological analysis, it is characterised in that comprise the following steps：Step
S1：Key node is used as using the station in pipeline network of fuel gas in city, voltage regulating station at different levels (case), lock well；Step S2：Two neighboring key
Link relation of the combustion gas gas flow between key point between node；Step S3：Topological analysis calculating is carried out, valve is closed in simulation
Operation.The technique effect of the present invention is as follows：On the basis of gas ductwork GIS data is not complete, the topology point of gas ductwork is built
Analysis figure, and applied in the emergency preplan of gas ductwork, by the consideration to pipe network figure, in the method for topological analysis, obtain excellent
The closing valving scheme of change, and calculate and obtain the key node influenceed and the number of users of influence, user is presented in graph form,
The dependence to linear data is reduced, operating efficiency is greatly improved and is precisely controlled the zone of influence of stopping the supple of gas or steam.
A kind of pipeline network of fuel gas in city emergency processing method based on topological analysis, establishes pipeline network of fuel gas in city topological relation
Figure, the topological relation figure is (as shown in Figure 2) (such as the source of the gas 1 in Fig. 2 or Fig. 3, to press in first including several key nodes
Lock well 2.Lock well 3 is pressed in second, lock well 4 is pressed in the 3rd, presses lock well 5 in the 4th, the 6th Zhong Ya voltage regulating stations/case 6, presses in the 5th and adjusts
Station/case 7 is pressed, low pressure voltage regulating station/case 8, the 4th Zhong Ya voltage regulating stations/case 9, the 3rd Zhong Ya voltage regulating stations/case 10, presses pressure regulation in second
Stand/case 11, the first Zhong Ya voltage regulating stations/case 12, the first low pressure lock well 13, the second low pressure lock well 14, the 3rd low pressure lock well 15, the 4th
Low pressure lock well 16, the 5th low pressure lock well 17) and by several described key nodes connect into network structure connection line (such as
Arrow line in Fig. 2 and Fig. 3), the key node refers to source of the gas, middle pressure lock well, Zhong Ya voltage regulating stations case, low pressure lock well or low pressure
Voltage regulating station case, the connection line refer to combustion gas gas flow (the i.e. connecting line upward arrow in Fig. 2 and Fig. 3 in pipeline and pipeline
Direction)；When gas leakage occurs, leakage point position coordinates and leakage line position coordinates are determined by GIS, according to letting out
Leak source position coordinates determines adjacent and related key node and the mould in the topological relation figure to leakage line position coordinates
Intend closing valve operation；The key node for determining to be affected by it is operated by simulation pass valve and all impacted key nodes are entered
Line flag (such as the 4th in Fig. 4 in press the 6th Zhong Ya voltage regulating stations/case 6 that lock well 5 is influenceed after closing, the 5th Zhong Ya voltage regulating stations/
Case 7, and 4 low pressure voltage regulating station/casees 8).The statistics of specific impacted gas-fired equipment is drawn in all impacted key nodes
Data.Affected user number is determined by impacted key node.Described adjacent and related key node refers to described in distance
The nearest key node of leakage point.Following simulated operation is carried out for the key node nearest apart from the leakage point：If should
Key node is unidirectional directed connection, then directly closes the valve of the key node, and the valve is defined as closing valve object；If should
Key node is to be bi-directionally connected, then finds out the upper level or upstream key node of the key node, is carried out valve and closes behaviour
Make, be defined as closing valve object.All impacted key nodes are determined simultaneously using breadth first traversal method (as shown in Figure 3)
It is final to determine affected user.The breadth first traversal method includes (pressing in the 4th in such as Fig. 4 as basic point to close valve object
Lock well 5), all not accessed adjoining key nodes are searched for downwards, then from adjacent key node, access them successively
The adjoining key node not being accessed, until all and basic point has, the key nodes of directed connection are all accessed, the basic point
Topology terminates, and determines impacted key node.By impacted key node, key node information is read, counts this leakage
The number of users that emergency closure Valve Event is influenceed.
It is hereby stated that described above contribute to skilled artisan understands that the invention, but not limit the present invention
The protection domain of creation.It is any that equivalent substitution described above, modification are improved without departing from the invention substantive content
And/or the implementation deleted numerous conform to the principle of simplicity and carried out, each fall within the protection domain of the invention.
Claims (6)
1. a kind of emergency processing method based on pipeline network of fuel gas in city topological analysis, it is characterised in that establish pipeline network of fuel gas in city
Topological relation figure, the topological relation figure include several key nodes and several described key nodes are connected into network knot
The connection line of structure, the key node refer to source of the gas, middle pressure lock well, Zhong Ya voltage regulating stations case, low pressure lock well or low pressure voltage regulating station
Case, the connection line refer to the combustion gas gas flow in pipeline and pipeline；When gas leakage occurs, determine to let out by GIS
Leak source position coordinates and leakage line position coordinates, according to leakage point position coordinates and leakage line position coordinates determine it is adjacent and
Related key node and the simulation pass valve operation in the topological relation figure；Valve operation is closed by the simulation to determine by its shadow
Simultaneously all impacted key nodes are marked for loud key node；
Described adjacent and related key node refers to the key node nearest apart from the leakage point；For apart from the leakage
The nearest key node of point carries out following simulated operation：If the key node is unidirectional directed connection, the pass is directly closed
The valve of key node, the valve are defined as closing valve object；If the key node is to be bi-directionally connected, the key node is found out
Upper level or upstream key node, are carried out valve shutoff operation, are defined as closing valve object.
2. the emergency processing method according to claim 1 based on pipeline network of fuel gas in city topological analysis, it is characterised in that
The statistics of specific impacted gas-fired equipment is drawn in all impacted key nodes.
3. the emergency processing method according to claim 1 based on pipeline network of fuel gas in city topological analysis, it is characterised in that logical
Cross impacted key node and determine affected user number.
4. the emergency processing method according to claim 1 based on pipeline network of fuel gas in city topological analysis, it is characterised in that adopt
All impacted key nodes are determined with breadth first traversal method and finally determine affected user.
5. the emergency processing method according to claim 4 based on pipeline network of fuel gas in city topological analysis, it is characterised in that institute
Stating breadth first traversal method includes, to close valve object as basic point, searching for all not accessed adjacent crucial sections downwards
Point, then from adjacent key node, access the adjoining key node that they are not accessed successively, have until all with basic point
The key node of directed connection is all accessed, and the topology of the basic point terminates, and determines impacted key node.
6. the emergency processing method according to claim 5 based on pipeline network of fuel gas in city topological analysis, it is characterised in that logical
Impacted key node is crossed, reads key node information, this leakage accident is counted and closes the number of users that Valve Event is influenceed.
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| CN105225603A (en) * | 2015-10-23 | 2016-01-06 | 浪潮软件集团有限公司 | Method and device for linear marking of pipeline data |
| CN107274081B (en) * | 2017-06-07 | 2020-06-05 | 中国石油大学(北京) | Performance evaluation method and device for natural gas pipe network |
| CN107420743B (en) * | 2017-06-09 | 2023-06-13 | 中国计量大学 | Intelligent urban gas PE pipe network measurement and control system and measurement and control method |
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| CN111623237B (en) * | 2019-02-27 | 2022-05-06 | 深圳电蚂蚁数据技术有限公司 | Method, device and system for confirming topological relation of regional gas utilization network |
| CN111999692B (en) * | 2019-05-27 | 2023-03-14 | 深圳电蚂蚁数据技术有限公司 | Multi-table error calibration method and device |
| CN110500512B (en) * | 2019-08-19 | 2022-05-24 | 北京讯腾智慧科技股份有限公司 | Gas pipe burst analysis method and device |
| CN111383152B (en) * | 2020-03-06 | 2024-02-27 | 上海天麦能源科技有限公司 | Safety state analysis method and system for urban gas pipe network |
| CN112214648A (en) * | 2020-10-13 | 2021-01-12 | 合肥小龟快跑信息科技有限公司 | Method for realizing tube burst analysis logic according to abnormal information fed back by acquisition points |
| CN113483270B (en) * | 2021-07-09 | 2023-05-02 | 中国人民解放军63796部队 | Online detection method for closed cavity of low-temperature liquid pipe network |
| CN116321010A (en) * | 2023-05-18 | 2023-06-23 | 西安航天自动化股份有限公司 | Water cut-off notification method and system based on pipe network topology |
| CN116756895B (en) * | 2023-08-15 | 2023-11-10 | 西南石油大学 | GIS-based urban complex multi-source pipe network pipe explosion analysis method and system |
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| CN117688775A (en) * | 2023-12-21 | 2024-03-12 | 上海叁零肆零科技有限公司 | Method, device, equipment and storage medium for generating leakage data of gas pipe network |
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Address after: 100029 Fourth Floor of Claw House, 23 Huixin East Street, Chaoyang District, Beijing Patentee after: Beijing techlink intelligent Polytron Technologies Inc Address before: 100029 Fourth Floor of Claw House, 23 Huixin East Street, Chaoyang District, Beijing Patentee before: Digital technology (Beijing) Co., Ltd. |