CN105485524B - A kind of suction wave line leakage system and method - Google Patents
A kind of suction wave line leakage system and method Download PDFInfo
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- CN105485524B CN105485524B CN201510844277.7A CN201510844277A CN105485524B CN 105485524 B CN105485524 B CN 105485524B CN 201510844277 A CN201510844277 A CN 201510844277A CN 105485524 B CN105485524 B CN 105485524B
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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
Abstract
The invention provides a kind of suction wave line leakage system and method, are related to petroleum pipeline leakage monitoring field.The present invention carries out accurate time synchronized by being realized located at pipeline each website pressure sensor, GPS unit and data synchronizing unit to pressure data；The pressure data after time synchronized is transmitted to SCADA servers by PLC collecting units, all website pressure datas are collected by SCADA servers and remote access interface is provided, data are uploaded to by leakage monitoring server by access interface, it ensure that the stability of data transfer, the transmission that pressure data reads failure phenomenon is avoided, ensures the reliability and accuracy of pressure data；Finally complete to judge pressure data, match and leak to position by leakage monitoring server, realize the leakage monitoring of multi-site pipeline enclosure and improve the accuracy of final calculation result.
Description
Technical field
The present invention relates to petroleum pipeline leakage monitoring field, more particularly to a kind of suction wave line leakage system and side
Method.
Background technology
The extensive investment construction of oil-gas pipeline brought with China's rapid economic development, gas oil pipe leakage, blocking, lack
Problem getting worse is fallen into, oil field at home long distance oil pipeline is mostly fitted without Leakage Detection system at present, mainly by
Manually maked an inspection tour along pipeline, pipeline performance data are manually read, and safe operation of the such case to pipeline is very unfavorable.According to estimating
Meter, monitoring leak from oil gas pipe, the output value of detecting system light product in itself just will be close to 1,00,000,000,000.Over the long term, pipe leakage
Monitoring industry ensures the real-time of leakage monitoring, accurate except needing more reliable, more effective technique means, product in itself
Property, validity, and high position precision and low rate of false alarm etc., more also need to long-term high-quality Local Service and expert point
Analysis.
In view of the foregoing, develop one kind can on-line checking, Realtime Alerts, simple to operate, deployment it is convenient and with compared with
High position precision and the line leakage method, system and method for low rate of false alarm are current urgent problems to be solved.
The content of the invention
Present invention aims to overcome that the shortcomings of the prior art, so as to provide a kind of suction wave line leakage system
System and method.
In a first aspect, the invention provides a kind of suction wave line leakage system.The system includes being located at pipeline
Each website pressure sensor, GPS unit, data synchronizing unit and PLC collecting units, and the SCADA clothes in Central Control Room
Be engaged in device, leakage monitoring server and client terminal, the pressure sensor and GPS unit respectively with the data synchronizing unit phase
Even, for respective collection pipeline real-time pressure data and gps signal to be uploaded into the data synchronizing unit, the gps signal bag
Include calibration pulse signal and standard time information；The data synchronizing unit is connected with the PLC collecting units, for receiving GPS
Signal and pressure data, and after pressure data is filtered and nursed one's health according to calibration pulse signal and standard time information to place
Pressure data after reason carries out time synchronized；The PLC collecting units are connected with the SCADA servers, for by the time it is same
Pressure data after step is sent into SCADA servers；The SCADA servers are connected with the leakage monitoring server, for connecing
Receive the pressure data of each website PLC collecting units and transmit to the leakage monitoring server；The leakage monitoring server with
The client machines are connected, for receiving and analyzing and processing the pressure data of each website, to draw the leak condition of pipeline and let out
Leak source；And the client terminal, for asking various data to the leakage monitoring server and being shown.
Further, the SCADA servers include PLC-Server communication modules and OPCClient proxy modules,
The PLC-Server communication modules match with the PLC collecting units, single for collecting each website PLC collections
The pressure data and offer OPC remote data access interfaces of member；
The pressure data collected is transferred to institute by the OPCClient proxy modules by OPC remote data access interface
State leakage monitoring server.
Further, the leakage monitoring server includes determining whether module, matching module and leak point positioning module,
Determination module is connected with matching module, for receiving the pressure data of each website with setpoint frequency and being stood with corresponding
The preset minimum monitoring threshold value of point is compared；It is less than minimum monitoring thresholding corresponding to it when monitoring some website pressure data
Value, then export leakage alarm information, and the leakage alarm information includes site name and leakage monitoring moment t1；
Matching module is connected with leak point positioning module, is exported for being searched from leakage alarm history library with determination module
Leakage alarm information match leakage alarm information, the leakage alarm information to match includes site name and leakage monitoring
Moment t2, the leakage alarm information to match and the leakage alarm information of determination module output occur in same pipeline section, and both
Time difference be less than the time threshold of pipeline section, time threshold air line distance between two websites passes than upper suction wave along pipeline
Broadcast speed；
Leak point positioning module, according to the matching of composition to air line distance, time difference and suction wave between website along pipeline
Spread speed positions to leakage point.
Further, the leak point positioning module uses ranging formula X=[L-v (t1-t2)]/2, wherein, L t1
Air line distance between website and t2 websites, V are leakage anchor point relative to t2 websites along pipe transmmision speed, X for suction wave
Distance.
Further, the PLC collecting units use the series Programmable logic Controller (PLC) of Siemens 1500.
Further, the system also includes interchanger, and the PLC collecting units of itself and each website pass through RJ-45 netting twine phases
Connection so that the pressure data of PLC collecting units collection is imported into LAN and reaches SCADA servers.
In second aspect, the invention provides a kind of monitoring side carried out using above-mentioned suction wave line leakage system
Method.This method comprises the following steps：
A, it will each gather pipeline real-time pressure data respectively by pressure sensor and GPS unit and gps signal uploads
To data synchronizing unit, the gps signal includes calibration pulse signal and standard time information；
B, pressure data and gps signal are received by data synchronizing unit, and root after pressure data is filtered and nursed one's health
Time synchronized is carried out to the pressure data after processing according to calibration pulse signal and standard time information；
C, the pressure data after time synchronized is sent into by SCADA servers by PLC collecting units；
D, the pressure data of each website PLC collecting units is received by SCADA servers and transmitted to leakage monitoring service
Device；
E, the pressure data of each website is received and analyzed and processed by leakage monitoring server, to draw the leakage shape of pipeline
State and leakage point；And
F, client terminal display leakage and location information and pressure sensor status information are passed through.
Further, the step d specifically includes following steps：
G, the pressure data of each website PLC collecting units is collected by the PLC-Server communication modules in SCADA servers
With offer OPC remote data access interfaces；
H, the pressure that will be collected by OPC remote data access interface by the OPCClient proxy modules in SCADA servers
Force data is transferred to leakage monitoring server.
Further, the step e specifically includes following steps：
I, receiving the pressure data of each website and judgement by the determination module in leakage monitoring server with setpoint frequency is
The no minimum monitoring threshold value preset less than its corresponding website；If some website pressure data is preset most less than its corresponding website
Low monitoring threshold value, then leakage alarm information is exported, the leakage alarm information includes site name and leakage monitoring moment t1, so
Step j is performed afterwards；If it is not, then perform step i；
J, searched by the matching module in leakage monitoring server from leakage alarm history library whether have with it is defeated in step i
The leakage alarm information of the leakage alarm information match gone out, the leakage alarm information to match includes site name and leakage is supervised
Moment t2 is surveyed, the leakage alarm information to match occurs in same pipeline section with the leakage alarm information exported in step i, and both
Time difference be less than the time threshold of pipeline section, time threshold air line distance between two websites passes than upper suction wave along pipeline
Broadcast speed；If so, then exporting the leakage alarm information to match, step k is then performed；If nothing, by leakage alarm in step i
Information is stored in alarm history storehouse, then performs step i；
K, by the leak point positioning module in leakage monitoring server according to the matching formed to air line distance between website,
Time difference and suction wave position along pipe transmmision speed to leakage point.
Further, the step k realizes the positioning of leakage point using ranging formula X=[L-v (t1-t2)]/2,
Wherein, air line distances of the L between t1 websites and t2 websites, V are that suction wave is fixed for leakage along pipe transmmision speed, X
Site relative to t2 websites distance.
The beneficial effects of the invention are as follows：By located at pipeline each website pressure sensor, GPS unit and data synchronizing unit
Realize and accurate time synchronized is carried out to pressure data；By PLC collecting units by the pressure data after time synchronized transmit to
SCADA servers, all website pressure datas are collected by SCADA servers and remote access interface is provided, pass through access interface
Data are uploaded to leakage monitoring server, it is ensured that the stability of data transfer, avoid pressure data and read failure phenomenon
Transmission, ensure the reliability and accuracy of pressure data；Finally by leakage monitoring server complete to pressure data judge,
Match somebody with somebody and leak positioning, realize the leakage monitoring of multi-site pipeline enclosure and improve the accuracy of final calculation result.
Brief description of the drawings
Fig. 1 is the suction wave line leakage system architecture diagram of the embodiment of the present invention；
Fig. 2 is that the suction wave line leakage system signal of the embodiment of the present invention transmits schematic diagram；And
Fig. 3 is the method flow diagram being monitored using suction wave line leakage system of the embodiment of the present invention.
Embodiment
In order that those skilled in the art are better understood from the technical scheme in the embodiment of the present invention, and make of the invention real
Apply the above-mentioned purpose of example, feature and advantage can be more obvious understandable, below by drawings and examples, to the technology of the present invention
Scheme is described in further detail.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work under the premise of all other embodiment for being obtained, belong to the scope of protection of the invention.
Fig. 1 is the suction wave line leakage system architecture diagram of the embodiment of the present invention.
As shown in figure 1, in the embodiment of the present invention suction wave line leakage system include pressure sensor, GPS unit,
Data synchronizing unit, PLC collecting units, interchanger, SCADA servers, leakage monitoring server and client terminal.SCADA is serviced
Device includes PLC-Server communication modules and OPCClient proxy modules.Leakage monitoring server includes determining whether module, matching mould
Block and leak point positioning module.
Pressure sensor and GPS unit are connected with data synchronizing unit respectively, and the pipeline for being mainly responsible for each gathering is real-time
Pressure data and gps signal are uploaded to data synchronizing unit.The gps signal includes calibration pulse signal and standard time information.
Data synchronizing unit is connected with PLC collecting units, is mainly used to receive gps signal and pressure data, and to number pressure
It is same according to the time is carried out to the pressure data after processing according to calibration pulse signal and standard time information after being filtered and nursing one's health
Step.Then the pressure data after time synchronized is transmitted by digital interface (including RS232, RS422, RS485, MODBUS etc.)
To PLC collecting units.
PLC collecting units are connected by RJ-45 netting twines with interchanger, are mainly used to receive and are sent pressure data best friend
Change planes, the pressure data for gathering PLC collecting units by interchanger is imported into LAN and reaches SCADA servers.This implementation
PLC collecting units in example can use the series Programmable logic Controller (PLC) of Siemens 1500.
SCADA servers are connected with leakage monitoring server, the main sampling and transmission for being responsible for completing data, and the time is same
Pressure data is transmitted to leakage monitoring server after step processing.SCADA servers may include PLC-Server communication modules and
OPCClient proxy modules, PLC-Server communication modules match with PLC collecting units, and it is single can to collect each website PLC collections
Pressure data and offer OPC remote data access interfaces after first synchronization process；OPCClient proxy modules are long-range by OPC
The pressure data collected is transferred to leakage monitoring server by data access interface.
Leakage monitoring server is connected with client machines, main to be responsible for receiving and analyzing and processing SCADA server transport mistakes
The pressure data come, to draw the leak condition of pipeline and leakage point.Leakage monitoring server can be with certain reading frequency (such as
The reading of pressure data 10HZ) is carried out from each website PLC collecting units, each website plc data block can all set a minimum prison
Threshold value K is surveyed, when some data (pressure value) is less than K in the plc data block (10 groups are 1 piece) for monitoring certain each website, now
System can send leakage alarm, and export this data leak monitoring moment.Then by this leakage information and alarm history storehouse
In leakage information matched, composition best match carries out the positioning of leakage point again to after.
Leakage monitoring server may include determination module, matching module and leak point positioning module.Determination module is with matching
Module is connected, for receiving the pressure data of each website and the minimum monitoring threshold value preset with corresponding website with setpoint frequency
It is compared；When monitoring some website pressure data minimum monitoring threshold value corresponding less than it, then leakage alarm information is exported,
The leakage alarm information includes site name and leakage monitoring moment t1；Matching module is connected with leak point positioning module, is used for
The leakage alarm information with the leakage alarm information match of determination module output is searched from leakage alarm history library, is matched
Leakage alarm information include site name and leakage monitoring moment t2, the leakage alarm information to match exports with determination module
Leakage alarm information occur in same pipeline section, and both time differences are less than the time threshold of pipeline section, and the time threshold is
Between two websites air line distance than upper suction wave along pipe transmmision speed.Leak point positioning module, according to the matching of composition to station
Air line distance, time difference and suction wave position along pipe transmmision speed to leakage point between point.Leakage in the present embodiment
Point location module uses ranging formula X=[L-v (t1-t2)]/2, wherein, air line distances of the L between t1 websites and t2 websites, V
Be suction wave along pipe transmmision speed, X is distance of the leakage anchor point relative to t2 websites.
Client terminal is used to ask various data to leakage monitoring server and shown.Such as show that leakage is believed with positioning
Breath and pressure sensor status information.
It should be noted that leakage monitoring server can remotely be read by OPC interface from PLC-Server communication modules
Required pressure data without OPCClient proxy modules transfer, but OPC (OPC be technical grade remote data visit
The general standard interface agreement asked) such a problem be present in interface, and remote access (striding equipment) needs to configure DCOM, Er Qiewen
It is qualitative inadequate, usually occur accessing link disconnection or data remote access unusable state.OPCClient proxy modules can
To solve the above problems, OPCClient proxy modules embed OPC data access component, by PLC-Server communication modules and
OPCClient proxy modules are operated in same equipment, then OPC data, which accesses, belongs to local data access, so does not
Need to configure DCOM, and stability is higher, is substantially not in the phenomenon of digital independent failure, and ensure pressure data can
By property and accuracy.OPCClient proxy modules possess adjustment digital independent frequency functionality, and system default setting frequency is
10Hz, i.e., per second from 10 groups of data of PLC-Server communication modules reading, (each PLC collecting units are consistent, and each PLC collections are single
First 10 groups of data) and transfer data to leakage monitoring server.OPCClient proxy modules are also equipped with monitoring certain road PLC numbers
It is whether abnormal (send communication mark to PLC-Server modules and whether judgement symbol connects exception) according to reading.
Fig. 2 is that the suction wave line leakage system signal of the embodiment of the present invention transmits schematic diagram.
As shown in Fig. 2 in the embodiment of the present invention, in each website of pipeline (1 to N websites, N are the positive integer more than 1)
Pressure sensor, GPS unit and PLC collecting units are set respectively, the interchanger set in Central Control Room, SCADA servers, let out
Leak monitoring server and client terminal.Pressure sensor and GPS unit on each website are respectively by the pipeline pressure of collection
The data synchronizing unit that data and gps signal are sent on its website, wherein gps signal include calibration pulse signal and the standard time believes
Breath.Gps signal and pressure data are received by data synchronizing unit, and according to standard arteries and veins after pressure data is filtered and nursed one's health
Rush signal and standard time information and time synchronized is carried out to the pressure data after processing.Then by the pressure data after time synchronized
Transmitted by digital interface (including RS232, RS422, RS485, MODBUS etc.) to PLC collecting units.PLC collecting units will press
Force data is transmitted to SCADA servers after transferring interchanger.Pressure after all Site synch processing is collected by SCADA servers
Transmit after data to leakage monitoring server, the pressure data of reception is analyzed and processed to draw by leakage monitoring server
The leakage point of pipeline.
Leakage monitoring server is to the processing procedure of pressure data：When the collection for monitoring certain website PLC collecting units
Pressure data when presetting minimum threshold values less than its corresponding website, then export a leakage alarm information, and go through from leakage alarm
The leakage information with this leakage alarm information match is searched in Shi Ku, so-called matching leakage information refers to two leakage informations
Occur in same pipeline section, and both time difference be less than pipeline section time threshold KT (length of pipe section/pressure waveform passes along pipeline
Broadcast speed), and best match is selected to (for example pipeline has 1,2,3,4 websites, and No. 2 and No. 3 websites are leaked, let out in theory
Leakage monitoring server can all monitor leakage alarm information, it may be possible to 1 and the composition matching pair of 2,2 and 3,3 and 4, but pass through
Can determine that No. 2 websites after matching screening conditions and No. 3 websites be best match to), pass through best match pair and public using positioning
Formula can calculate leakage anchor point, then again be put in storage the leakage alarm information received.If without matching in alarm history storehouse
Leakage information, then the leakage alarm information that PLC collecting units export can be stored in alarm history storehouse, to be let out as next
Reference data when leakage warning message is matched.
In the present embodiment, leakage monitoring server first carries out matching leakage information, Ran Houzai to the pressure data received
The position of leakage point is calculated according to leakage point calculation formula, can not only solve waveform when pipeline leaks using the method
Need from pipe transmmision certain time could by effective detection to the problem of, the quick effect for catching leakage and positioning in real time can be reached
Fruit；Can also will leak out and be separated with positioning, than if any user only need export leakage information；Pipeline can also be solved with more
During website, the problem of position of leakage point can not be accurately positioned.
Fig. 3 is the method flow diagram being monitored using suction wave line leakage system of the embodiment of the present invention.
As shown in figure 3, the method flow being monitored using suction wave line leakage system of the embodiment of the present invention
Figure comprises the following steps：
In step 301, will each be gathered respectively by pressure sensor and GPS unit pipeline real-time pressure data and
Gps signal is uploaded to data synchronizing unit, and the gps signal includes calibration pulse signal and standard time information..
In step 302, by the gps signal and pressure data in data synchronizing unit receiving step 301, and to number pressure
It is same according to the time is carried out to the pressure data after processing according to calibration pulse signal and standard time information after being filtered and nursing one's health
Step, then transmits the pressure data after time synchronized to PLC collecting units.
In step 303, it is concurrent by the pressure data after time synchronizing in PLC collecting units receiving step 302
Deliver to SCADA servers.
In step 304, by each website PLC in the PLC-Server communication modules compilation steps 303 in SCADA servers
The pressure data and offer OPC remote data access interfaces of collecting unit.
In step 305, OPC remote data access interfaces are passed through by the OPCClient proxy modules in SCADA servers
The pressure data collected in step 304 is transferred to leakage monitoring server.
Within step 306, by the determination module in leakage monitoring server with each website in setpoint frequency receiving step 305
Pressure data and determine whether the minimum monitoring threshold value preset less than its corresponding website.If so, then perform step 307；If
It is no, then perform step 306.
In step 307, if some website pressure data corresponds to the preset minimum monitoring door of website less than it in step 306
Limit value, then export leakage alarm information, and the leakage alarm information includes site name and leakage monitoring moment t1, then performs step
Rapid 308.
In step 308, whether searched by the matching module in leakage monitoring server from leakage alarm history library has
With the leakage alarm information of the leakage alarm information match exported in step 307, the leakage alarm information to match includes station
Point title and leakage monitoring moment t2, the leakage alarm information to match occur with the leakage alarm information exported in step 307
In same pipeline section, and both time differences are less than the time threshold of pipeline section, time threshold air line distance between two websites
Than upper suction wave along pipe transmmision speed.If searching, step 309 is performed；If it is not, then perform step 310.
In a step 309, if searching the leakage alarm information of the leakage alarm information match exported with step 307,
The leakage alarm information to match is then exported, then performs step 311.
In the step 310, if the leakage alarm for not searching the leakage alarm information match exported with step 307 is believed
Leakage alarm information in step 307, then be stored in alarm history storehouse by breath, then performs step 306.
In step 311, by the leak point positioning module in leakage monitoring server according to the matching formed to website it
Between air line distance, time difference and suction wave leakage point is positioned along pipe transmmision speed.Use ranging formula X=[L-v
(t1-t2) positioning of leakage point]/2 is realized, wherein, air line distances of the L between t1 websites and t2 websites, V is suction wave along pipeline
Spread speed, X are distance of the leakage anchor point relative to t2 websites.
In step 312, client terminal display leakage and location information and sensor status information are passed through.
In summary, the advantage of the invention is that the waste of unnecessary manpower and materials can be reduced, resource is saved, and
Can on-line checking, Realtime Alerts, simple to operate, deployment is convenient, positioning precision is high low with rate of false alarm.By located at each station of pipeline
Pressing force snesor, GPS unit, data synchronizing unit and PLC collecting units realizes that to carry out accurate time to pressure data same
Step；All website pressure datas are collected by SCADA servers and remote access interface is provided, are uploaded data by access interface
To leakage monitoring server, it is ensured that the stability of data transfer, avoid the transmission that pressure data reads failure phenomenon, ensure
The reliability and accuracy of pressure data；Finally complete to judge pressure data, match and leak to determine by leakage monitoring server
Position, realizes the leakage monitoring of multi-site pipeline enclosure and improves the accuracy of final calculation result.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (9)
- A kind of 1. suction wave line leakage system, it is characterised in that including located at each website pressure sensor of pipeline, GPS unit, data synchronizing unit and PLC collecting units, and SCADA servers, leakage monitoring server in Central Control Room And client terminal,The pressure sensor and GPS unit are connected with the data synchronizing unit respectively, are pressed in real time for will each gather pipeline Force data and gps signal are uploaded to the data synchronizing unit, and the gps signal includes calibration pulse signal and the standard time believes Breath；The data synchronizing unit is connected with the PLC collecting units, for receiving gps signal and pressure data, and to number pressure It is same according to the time is carried out to the pressure data after processing according to calibration pulse signal and standard time information after being filtered and nursing one's health Step；The PLC collecting units are connected with the SCADA servers, for the pressure data after time synchronized to be sent into SCADA Server；The SCADA servers are connected with the leakage monitoring server, for receiving the number pressure of each website PLC collecting units According to and transmit to the leakage monitoring server；The leakage monitoring server is connected with the client terminal, for receiving and analyzing and processing the pressure data of each website, To draw the leak condition of pipeline and leakage point, the leakage monitoring server includes determining whether module, matching module and leakage point Locating module,Determination module is connected with matching module, for receiving the pressure data of each website and pre- with corresponding website with setpoint frequency The minimum monitoring threshold value put is compared；It is less than minimum monitoring threshold value corresponding to it when monitoring some website pressure data, Leakage alarm information is then exported, the leakage alarm information includes site name and leakage monitoring moment t1；Matching module is connected with leak point positioning module, is let out for being searched from leakage alarm history library with what determination module exported The leakage alarm information of alert information match is failed to report, the leakage alarm information to match includes site name and leakage monitoring moment T2, the leakage alarm information of the leakage alarm information to match and determination module output occur in same pipeline section, and both when Between difference be less than the time threshold of pipeline section, time threshold air line distance for two websites between is faster along pipe transmmision than upper suction wave Degree；Leak point positioning module, according to the matching of composition to air line distance, time difference and suction wave between website along pipe transmmision Speed positions to leakage point；The client terminal, for asking various data to the leakage monitoring server and being shown.
- 2. suction wave line leakage system according to claim 1, it is characterised in that the SCADA servers bag PLC-Server communication modules and OPCClient proxy modules are included,The PLC-Server communication modules match with the PLC collecting units, for collecting each website PLC collecting units Pressure data and offer OPC remote data access interfaces；The pressure data collected is transferred to described let out by the OPCClient proxy modules by OPC remote data access interface Leak monitoring server.
- 3. suction wave line leakage system according to claim 1, it is characterised in that the leak point positioning module Using ranging formula X=[L-V (t1-t2)]/2, wherein, air line distances of the L between t1 websites and t2 websites, V is suction wave edge Pipe transmmision speed, X are distance of the leakage anchor point relative to t2 websites.
- 4. suction wave line leakage system according to claim 1, it is characterised in that the PLC collecting units are adopted With the series Programmable logic Controller (PLC) of Siemens 1500.
- 5. the suction wave line leakage system according to one of Claims 1-4, in addition to interchanger, itself and each station The PLC collecting units of point are connected by RJ-45 netting twines so that the pressure data of PLC collecting units collection is imported into LAN Reach SCADA servers.
- A kind of 6. monitoring method that suction wave line leakage system using described in claim 1 is carried out, it is characterised in that Comprise the following steps：A, respective collection pipeline real-time pressure data and gps signal are uploaded to by number by pressure sensor and GPS unit respectively According to synchronizer, the gps signal includes calibration pulse signal and standard time information；B, pressure data and gps signal are received by data synchronizing unit, and according to mark after pressure data is filtered and nursed one's health Quasi- pulse signal and standard time information carry out time synchronized to the pressure data after processing；C, the pressure data after time synchronized is sent into by SCADA servers by PLC collecting units；D, the pressure data of each website PLC collecting units is received by SCADA servers and transmitted to leakage monitoring server；E, receive and analyze and process the pressure data of each website by leakage monitoring server, with draw the leak condition of pipeline and Leakage point；AndF, client terminal display leakage and location information and pressure sensor status information are passed through.
- 7. monitoring method according to claim 6, it is characterised in that the step d specifically includes following steps：G, the pressure data of each website PLC collecting units is collected by the PLC-Server communication modules in SCADA servers and carried For OPC remote data access interfaces；H, the number pressure that will be collected by OPC remote data access interface by the OPCClient proxy modules in SCADA servers According to being transferred to leakage monitoring server.
- 8. monitoring method according to claim 6, it is characterised in that the step e specifically includes following steps：I, the pressure data of each website is received with setpoint frequency by the determination module in leakage monitoring server and determined whether low In the preset minimum monitoring threshold value of its corresponding website；If some website pressure data minimum prison preset less than its corresponding website Threshold value is surveyed, then exports leakage alarm information, the leakage alarm information includes site name and leakage monitoring moment t1, then held Row step j；If it is not, then perform step i；Whether j, searched by the matching module in leakage monitoring server from leakage alarm history library has and is exported in step i The leakage alarm information of leakage alarm information match, when the leakage alarm information to match includes site name and leakage monitoring Carve t2, the leakage alarm information exported in the leakage alarm information to match and step i occurs in same pipeline section, and both when Between difference be less than the time threshold of pipeline section, time threshold air line distance for two websites between is faster along pipe transmmision than upper suction wave Degree；If so, then exporting the leakage alarm information to match, step k is then performed；If nothing, by leakage alarm information in step i It is stored in alarm history storehouse, then performs step i；K, by the leak point positioning module in leakage monitoring server according to the matching formed to air line distance, time between website Difference and suction wave position along pipe transmmision speed to leakage point.
- 9. monitoring method according to claim 8, it is characterised in that the step k uses ranging formula X=[L-V (t1- T2 the positioning of leakage point)]/2 is realized,Wherein, air line distances of the L between t1 websites and t2 websites, V be suction wave along pipe transmmision speed, X is leakage anchor point Relative to the distance of t2 websites.
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| CN106125661A (en) * | 2016-07-15 | 2016-11-16 | 上海海事大学 | Assembly shop fuel transfer system pipeline PLC monitoring system |
| CN107084313A (en) * | 2017-05-16 | 2017-08-22 | 云南大红山管道有限公司 | Ore slurry pipeline leaks positioning alarm system and method |
| CN108980631B (en) * | 2018-06-28 | 2020-05-15 | 北京鼎新世纪软件技术有限公司 | Negative pressure wave method pipeline leakage detection system based on online simulation |
| CN109780454B (en) * | 2019-03-26 | 2021-01-05 | 三川智慧科技股份有限公司 | Method and device for selecting water supply pipeline leakage point positioning equipment set |
| CN110630910A (en) * | 2019-07-02 | 2019-12-31 | 安徽理工大学 | Urban underground gas pipeline monitoring system |
| CN110469782B (en) * | 2019-07-31 | 2020-07-17 | 中国科学院声学研究所 | Pipeline leakage positioning device based on self-adaptive filter |
| CN111853552B (en) * | 2020-07-29 | 2021-03-12 | 北京市劳动保护科学研究所 | Heat supply pipeline leakage online detection positioning method |
| CN113090960A (en) * | 2021-04-21 | 2021-07-09 | 北京科技大学 | Filling slurry pipeline leakage monitoring system and method |
| CN114414164A (en) * | 2021-12-21 | 2022-04-29 | 山东科技大学 | Pipeline leakage monitoring method and system |
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| US5398542A (en) * | 1992-10-16 | 1995-03-21 | Nkk Corporation | Method for determining direction of travel of a wave front and apparatus therefor |
| CN2542909Y (en) * | 2002-05-10 | 2003-04-02 | 李振家 | Pipeline leak monitoring alarm |
| CN201502870U (en) * | 2009-08-05 | 2010-06-09 | 哈尔滨理工大学 | Oil delivery pipeline leakage detecting and positioning device based on GPRS |
| CN102927449B (en) * | 2012-10-25 | 2015-05-13 | 黄腾飞 | Method and system for detecting small leakage defects of pipe network based on analog simulation technology |
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