CN204494093U - A kind of natural gas line cathodic protection remote monitoring device - Google Patents

A kind of natural gas line cathodic protection remote monitoring device Download PDF

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Publication number
CN204494093U
CN204494093U CN201520060536.2U CN201520060536U CN204494093U CN 204494093 U CN204494093 U CN 204494093U CN 201520060536 U CN201520060536 U CN 201520060536U CN 204494093 U CN204494093 U CN 204494093U
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China
Prior art keywords
remote monitoring
terminal
data
natural gas
gas line
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Expired - Fee Related
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CN201520060536.2U
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Chinese (zh)
Inventor
彭晓晖
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Shanghai Yuandong Science and Technology Co Ltd
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Shanghai Yuandong Science and Technology Co Ltd
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Abstract

The utility model relates to a kind of natural gas line cathodic protection remote monitoring device, comprise the data collection layer, Web communication layer and the remote monitoring layer that connect successively, described data collection layer comprises some the moon and protects Data collectien terminal and some potentiostats, described the moon is protected Data collectien terminal and is distributed in pipeline each monitoring point place along the line, and described potentiostat is located in the door station corresponding with monitoring point; Described Web communication layer comprises GPRS wireless tunnel and optical cable, and described the moon is protected Data collectien terminal and is connected with remote monitoring layer by GPRS wireless tunnel, and described potentiostat is connected with remote monitoring layer by optical cable; Described remote monitoring layer comprises Yin Bao remote monitoring main website, SCADA system database and SCADA management and running server.Compared with prior art, the utility model has the advantages such as operability is high, maintenance cost is low.

Description

A kind of natural gas line cathodic protection remote monitoring device
Technical field
The utility model relates to a kind of natural gas line monitoring device, especially relates to a kind of natural gas line cathodic protection remote monitoring device.
Background technique
Anticorrosion and the protection of rock gas underground gas transmission pipe is the significant problem being related to pipeline gas transmission running state, guaranteeing natural gas transmission safety, extend pipeline working life, is the important process content of pipeline daily management.
Traditional pipeline cathode protection detects exists following point:
(1) traditional detection mode adopts the mode of line walking, is detected along the line once by professional contingent every a period of time, and therefore data are discontinuous, not in time;
(2) cloudy data of protecting do not have corresponding computer digital animation and analysis software, and utilization ratio and the shared rate of data are not high, and to instructing, effect of daily pipeline cathode protection management is not high, limit pipeline management level and promote.
(3) owing to adopting the mode of hand data collection, therefore, the precision of data is relative with reliability poor, there is the vestige of personal error.
Summary of the invention
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and the natural gas line cathodic protection remote monitoring device that a kind of operability is high, maintenance cost is low is provided.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of natural gas line cathodic protection remote monitoring device, comprise the data collection layer, Web communication layer and the remote monitoring layer that connect successively, described data collection layer comprises some the moon and protects Data collectien terminal and some potentiostats, described the moon is protected Data collectien terminal and is distributed in pipeline each monitoring point place along the line, and described potentiostat is located in the door station corresponding with monitoring point;
Described Web communication layer comprises GPRS wireless tunnel and optical cable, and described the moon is protected Data collectien terminal and is connected with remote monitoring layer by GPRS wireless tunnel, and described potentiostat is connected with remote monitoring layer by optical cable;
Described remote monitoring layer comprises Yin Bao remote monitoring main website, SCADA system database and SCADA management and running server, described Yin Bao remote monitoring main website connects SCADA system database and SCADA management and running server respectively, and is connected with data collection layer by Web communication layer.
Described the moon is protected Data collectien terminal and is comprised stainless steel pile tube, contact unit, ground unit, acquisition terminal, test cell and antenna receiving terminal, described stainless steel pile tube is located at monitoring point place, described acquisition terminal, test cell and antenna receiving terminal are located in stainless steel pile tube, described acquisition terminal connects contact unit, ground unit and test cell respectively, and described contact unit, ground unit are located at natural gas line place.
Described contact unit comprises polarized probe and polarized probe cable, and described polarized probe is connected with acquisition terminal by polarized probe cable.
Described ground unit comprises grounding body and earth cable, and described grounding body is connected with acquisition terminal by earth cable, and described earth cable is connected with natural gas line by underground cable.
Described test cell comprises test terminal box and test cable, and described test terminal box one end is connected with acquisition terminal by test cable, and the other end is connected with antenna receiving terminal.
Described data collection layer also comprises and connects the cloudy alarm protecting Data collectien terminal and potentiostat respectively.
Described SCADA system database comprises cloudy floor data of protecting and gathers storehouse and cloudy data of protecting gathers storehouse.
Also comprise mobile terminal, this mobile terminal is protected Data collectien terminal by GPRS wireless tunnel with the moon and is connected.
Compared with prior art, the utility model has the following advantages:
(1) due to the utility model setting data acquisition layer, Web communication layer and remote monitoring layer; include cathodic protection monitoring device in natural gas pipeline SCADA system; cloudy guarantor's monitoring management and SCADA are integrated on unified platform, improve systematicness and the integrity of natural gas line dispatching management information system.
(2) due to Web communication layer resource and the operational administrative layer resource of shared SCADA system, saved system investments cost, improve the operability of system, and reduced system maintenance cost.
(3) take database as the gas transmission management and running not only omnidistance record natural gas transmission situation of core, meanwhile, also record cathodic protection operation conditions, possess the ability of the whole natural gas transmission process of true reduction; Possesses the query capability of rock gas in-service pipeline status data, for the Optimization analyses of natural gas pipeline operation and maintenance and management decision provide strong support simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is data flow figure of the present utility model;
Fig. 3 is the structural representation that the utility model the moon protects Data collectien terminal.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.The present embodiment is implemented premised on technical solutions of the utility model, give detailed mode of execution and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As Figure 1-Figure 2, the utility model embodiment provides a kind of natural gas line cathodic protection remote monitoring device, point three aspects, consistent with typical SCADA system structure, and correspondence incorporates the three-layer structure of SCADA system according to this:
(1) data collection layer, for obtaining monitoring point real-time working condition data and the constant potential real-time working condition data of pipeline, comprise some the moon and protect Data collectien terminal 1 and some potentiostats 2, described the moon is protected Data collectien terminal 1 and is distributed in pipeline each monitoring point place along the line, and described potentiostat 2 is located in the door station corresponding with monitoring point.Cloudy Data collectien terminal of protecting adopts RTU, and potentiostat adopts PLC.
(2) Web communication layer, for sending monitoring point real-time working condition data and the constant potential real-time working condition data of data collection layer acquisition.Web communication layer comprises GPRS wireless tunnel 3 and optical cable (LAN) 4, and described the moon is protected Data collectien terminal 1 and is connected with remote monitoring layer by GPRS wireless tunnel 3, and described potentiostat 2 is connected with remote monitoring layer by optical cable 4.
(3) remote monitoring layer, for carrying out cathodic protection according to the monitoring point real-time working condition data received and constant potential real-time working condition data to pipeline, and by data stored in SCADA system database.Remote monitoring layer comprises Yin Bao remote monitoring main website 5, SCADA system database 8 and SCADA management and running server 6, described Yin Bao remote monitoring main website 5 connects SCADA system database 8 and SCADA management and running server 6 respectively, and is connected with data collection layer by Web communication layer.SCADA system database comprises cloudy floor data of protecting and gathers storehouse and cloudy data of protecting gathers storehouse.Wherein, cloudy floor data of protecting gathers storehouse and is collected by data collection layer, comprise duty parameter attribute list, real time data refreshing table, floor data tracking table record, hour data statistical form, day data statistic, the moon data statistic and annual data statistical form.Cloudy guarantor's data gathers storehouse and is obtained by manual input, comprise data table collection and management data list collection, data table collection comprises pipeline foundation MSDS, trouble-shooting data table and fault treatment prediction scheme table, and management data list collection comprises measuring point management information table, maintenance enlightenment table, authority distribution management table and operator message table.
1, data capture
(1) cloudy guarantor's Data collectien terminal
In the present embodiment, cloudy Data collectien terminal 1 of protecting is integrated with wireless communication technique, Low-power Technology, achieves the automatic detection of pipe protection current potential, Data acquisition and transmit.As shown in Figure 3, cloudy Data collectien terminal 1 of protecting comprises stainless steel pile tube 101, contact unit, ground unit, acquisition terminal 102, test cell and antenna receiving terminal 111, stainless steel pile tube 101 is located at monitoring point place, acquisition terminal 102, test cell and antenna receiving terminal 111 are located in stainless steel pile tube 101, acquisition terminal 102 connects contact unit, ground unit and test cell respectively, and contact unit, ground unit are located at natural gas line 108 place.
Contact unit comprises polarized probe 103 and polarized probe cable 104, and polarized probe 103 is connected with acquisition terminal 102 by polarized probe cable 104; Ground unit comprises grounding body 105 and earth cable 106, and grounding body 105 is connected with acquisition terminal 102 by earth cable 106, and earth cable 106 is connected with natural gas line 108 by underground cable 107; Test cell comprises test terminal box 109 and test cable 110, and test terminal box 109 one end is connected with acquisition terminal 102 by test cable 110, and the other end is connected with antenna receiving terminal 111.
In technique, cloudy Data collectien terminal of protecting have employed stainless steel pile tube mode, makes acquisition instrument meet buried installation requirement.Cloudy Data collectien terminal of protecting has storage chip, and maximum support stores 12000 data, the data that the same day can not upload, and within second day, again can be transferred to service routine, ensure that the continuity of data, its major functions and features is as follows:
A) data communication method
Communication modes supports GPRS, gsm wireless communication modes and Ethernet wire communication mode.
B) automatic collection and uploading data
Can every day timing automatic carry out data capture and transmission, the data of collection comprise pipe protection current potential and AC influence voltage, data send density can be arranged on monitor supervision platform by user.
C) support to detect continuously, the convenient monitoring to keypoint part
Can set the high-density acquisition time period, sample frequency reaches 1/10 seconds, effectively can detect the disturbed condition of stray electrical current.
D) low power dissipation design, without the need to changing battery in 2 years
Adopt Low-power Technology, power at use disposable battery, every day is when gathering 1 data, 5 years service time of design, and battery is easy to change.
E) reliable and stable, allow buried use
Complete machine security level reaches IP65, and main frame can normally work buried or under water.Meanwhile, lightning protection is abundant, meets site environment requirement.
F) in-site installation is various informative, meets antitheft needs
Test pile form adopts Stainless Steel Tube test pile.
G) non-maintaining installation
In-site installation only needs connecting tube cathode line and reference electrode wire, with common test stake similar in form, easy and simple to handle.In normal using process, all automatic data collections, storage, Maintenance free.
(2) potentiostat
Potentiostat is arranged on a station, for the impressed current cathodic protection of pipeline.
Potentiostat entirety says it is a reverse feedback amplification-output system, closed-loop adjustment is formed with buried natural gas line, energising point current potential is measured by reference electrode, compare as sampled signal and control signal, realize controlling and regulating polarization current to export, energising point current potential is remained on the controlling potential of setting.Warning circuit is provided with in potentiostat.
Potentiostat fundamental technology performance:
reference potential control range :-3.000V ~+1.000V continuously adjustabe;
reference potential departure≤± 5mV;
reference electrode input resistance > 2M Ω, flows through reference electrode electric current < 1 μ A;
reference inputs anti-50Hz interference and is greater than 40V;
ripple factor≤1%;
constant current controlling precision≤± 1%;
fully loaded working efficiency (complete machine working efficiency)>=90%;
power-off test function: make-and-break time can be adjusted by user, default setting is logical 12 seconds, disconnected 3 seconds;
operational Limits self-retaining function: after power-off is out of service, after restoring electricity, instrument automatically brings into operation under former setup parameter.
(3) warning function
In another embodiment of the utility model, data collection layer also comprises and connects the cloudy alarm protecting Data collectien terminal and potentiostat respectively, realizes following warning function:
The display mode of a) reporting to the police: All Alerts all provides acoustooptic alarm, the reason of display alarm on liquid crystal screen simultaneously.
B) output current, voltage overload alarm function: output current or voltage overrate 105% time, instrument alarm.
C) current potential overrun error warning function: the upper limit that reference potential exceedes " cross undercurrent potential alarming value " or lower than under " crossing undercurrent potential alarming value " in limited time, instrument alarm.Cross, undercurrent potential alarming value is limited to presetting potential ± 50mV up and down.
D) incorrect polarity is reported to the police: potentiostat output polarity connects inverse time, instrument alarm and autostop.
2, network service
(1) cathodic protection data
It is along the line that cathodic protection monitoring point is distributed in gas pipeline, without mains-supplied, also without communication incoming end, therefore, recommends to adopt GPRS communication teletransmission data.
GPRS (General Packet Radio Service) is a kind of new Network developing out on existing gsm system basis.GPRS adopts packet-switch technology, and each user can take multiple wireless channel simultaneously, and same wireless channel can be shared by multiple user again, realizes resource and effectively utilizes, thus realize high speed data transfers.GPRS supports the application based on standard data communications agreement, can realize interconnecting with IP network, X.25 net.GPRS has full duplex running, and gap is received and dispatched, always online, the transceiving data that only has is occupying system resources, charging way with features such as volume of transmitted data are as the criterion, because the corn layer of GPRS adopts IP technology, bottom can use multiple transmission technology, and this makes it comparatively easily realize end to end.The wireless IP of wide area connects, to realize certain specific function.In the present embodiment, mobile communication system 2G/3G can be adopted to transmit, remote monitoring layer is connected with GPRS by fire-wall, internet.
(2) constant potential data
Potentiostat is arranged on control room, associated gate station, can directly access Men Zhanzhan Ore-controlling Role, then be uploaded to remote monitoring layer through long-range optical cable.
3, remote monitoring platform
(1) Yin Bao remote monitoring main website MTU
The effect of Yin Bao remote monitoring main website is the floor data that each remote terminal of reception is uploaded, carry out resolving and dump to SCADA system database, SCADA system joins interface with cloudy data of protecting remote supervision system and is located at database aspect, by exchanges data storehouse, SCADA system is automatically by the data sheet of data conversion storage to correspondence.
The user function of Yin Bao remote monitoring main website comprises that field data is patrolled and examined, monitoring continuously of fixing a point, management on duty and reporting system, cloudy contents such as running inquiry and statistics, pipeline data management, systems management of protecting.The moon for relying on, is protected monitoring and household gas heating management system is brought in management into the current SCADA dispatching and monitoring platform of Jiaxing rock gas by whole system, forms unified, complete overall system architecture.
(2) auxiliary support function
The auxiliary back-up system of area of computer aided cloudy keeping reason provides the establishment of cloudy guarantor's maintenance plan, alarm treatment command prompt, cloudy guarantor's data to browse and have access to function with historical record.And be protect expert system reserved data interface based on computer the moon of generalized information system in the future.System provides the data-interface with SCADA software and Production database.
A) cloudy guarantor's maintenance plan programmed function
Support the establishment of cloudy guarantor's maintenance plan, comprise the moon and protect monitoring terminal repair schedule, constant potential impressed current cathodic protection implementation plan etc., make operator on duty can easily obtain cloudy guarantor maintenance project, better carry out the moon and protect upkeep operation.
B) alarm treatment command prompt function
By networking flow process, alarm treatment instruction is assigned to pipe-line maintenance department, and upload cloudy record and the confirmation of protecting alarm treatment result.
C) cloudy guarantor's data is browsed and historical record function
To the data analysis in historical data base, various cloudy guarantor's data and record can be provided, as parameters such as prediction scheme, job specification and cloudy guarantor's continuous working periods.Support that the instrumentation data to directly gathering carry out alert if setting.
D) monitoring terminal is long-range arranges function
Operator can protect monitoring terminal to the moon and carry out long-range setting.
In another embodiment of the present utility model, also comprise mobile terminal 7, this mobile terminal 7 is protected Data collectien terminal 1 by GPRS wireless tunnel with the moon and is connected.
The utility model obtains test and implements in the natural gas pipeline SCADA system of Jiaxing.

Claims (8)

1. a natural gas line cathodic protection remote monitoring device, it is characterized in that, comprise the data collection layer, Web communication layer and the remote monitoring layer that connect successively, described data collection layer comprises some the moon and protects Data collectien terminal and some potentiostats, described the moon is protected Data collectien terminal and is distributed in pipeline each monitoring point place along the line, and described potentiostat is located in the door station corresponding with monitoring point;
Described Web communication layer comprises GPRS wireless tunnel and optical cable, and described the moon is protected Data collectien terminal and is connected with remote monitoring layer by GPRS wireless tunnel, and described potentiostat is connected with remote monitoring layer by optical cable;
Described remote monitoring layer comprises Yin Bao remote monitoring main website, SCADA system database and SCADA management and running server, described Yin Bao remote monitoring main website connects SCADA system database and SCADA management and running server respectively, and is connected with data collection layer by Web communication layer.
2. natural gas line cathodic protection remote monitoring device according to claim 1; it is characterized in that; described the moon is protected Data collectien terminal and is comprised stainless steel pile tube, contact unit, ground unit, acquisition terminal, test cell and antenna receiving terminal; described stainless steel pile tube is located at monitoring point place; described acquisition terminal, test cell and antenna receiving terminal are located in stainless steel pile tube; described acquisition terminal connects contact unit, ground unit and test cell respectively, and described contact unit, ground unit are located at natural gas line place.
3. natural gas line cathodic protection remote monitoring device according to claim 2, is characterized in that, described contact unit comprises polarized probe and polarized probe cable, and described polarized probe is connected with acquisition terminal by polarized probe cable.
4. natural gas line cathodic protection remote monitoring device according to claim 2; it is characterized in that; described ground unit comprises grounding body and earth cable, and described grounding body is connected with acquisition terminal by earth cable, and described earth cable is connected with natural gas line by underground cable.
5. natural gas line cathodic protection remote monitoring device according to claim 2; it is characterized in that; described test cell comprises test terminal box and test cable, and described test terminal box one end is connected with acquisition terminal by test cable, and the other end is connected with antenna receiving terminal.
6. natural gas line cathodic protection remote monitoring device according to claim 2, is characterized in that, described data collection layer also comprises and connects the cloudy alarm protecting Data collectien terminal and potentiostat respectively.
7. natural gas line cathodic protection remote monitoring device according to claim 1, is characterized in that, described SCADA system database comprises cloudy floor data of protecting and gathers storehouse and cloudy data of protecting gathers storehouse.
8. natural gas line cathodic protection remote monitoring device according to claim 1, is characterized in that, also comprise mobile terminal, and this mobile terminal is protected Data collectien terminal by GPRS wireless tunnel with the moon and is connected.
CN201520060536.2U 2015-01-28 2015-01-28 A kind of natural gas line cathodic protection remote monitoring device Expired - Fee Related CN204494093U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106119857A (en) * 2016-08-01 2016-11-16 大连天禄防腐工程有限公司 The intelligent monitor system of impressed current cathodic protection
CN106530650A (en) * 2015-09-11 2017-03-22 成都娇子意航星科技有限公司 Wireless data transmission based long distance pipeline cathode protection measurement and control method
CN107781646A (en) * 2017-11-21 2018-03-09 中煤航测遥感集团有限公司 Natural gas monitoring system
CN109357166A (en) * 2018-08-17 2019-02-19 重庆九洲星熠导航设备有限公司 LoRa type low-power consumption gas pipeline cathodic protection potential monitors system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106530650A (en) * 2015-09-11 2017-03-22 成都娇子意航星科技有限公司 Wireless data transmission based long distance pipeline cathode protection measurement and control method
CN106119857A (en) * 2016-08-01 2016-11-16 大连天禄防腐工程有限公司 The intelligent monitor system of impressed current cathodic protection
CN107781646A (en) * 2017-11-21 2018-03-09 中煤航测遥感集团有限公司 Natural gas monitoring system
CN109357166A (en) * 2018-08-17 2019-02-19 重庆九洲星熠导航设备有限公司 LoRa type low-power consumption gas pipeline cathodic protection potential monitors system

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150722

Termination date: 20220128

CF01 Termination of patent right due to non-payment of annual fee