CN103557911A - On-line detection method, system and device of natural gas trade metering equipment - Google Patents
On-line detection method, system and device of natural gas trade metering equipment Download PDFInfo
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Abstract
The invention provides an on-line detection method, system and device of natural gas trade metering equipment. The method comprises a data acqusition step, a comparison step and an alarm step, wherein required data of a flow meter and a chromatographic analyzer is read from a field flow computer by using an I/O (Input/Output) server through an internal network and is stored in a real-time database in the data acqusition step; the flow speed, the sound speed, the gain and the signal-noise ratio of each sound channel of the flow meter are read from the real-time database, a response coefficient of the chromatographic analyzer is read, and the factors are compared with a preset flow speed alarm value, a preset sound speed alarm value, a preset gain alarm value, a preset signal-noise ratio alarm value and a preset response coefficient alarm value respectively in the comparison step; alarm information is displayed when the read random data exceeds the corresponding threshold alarm value in the alarm step. The important data is read from the field flow computer by using the I/O server through the internal network, the information of all natural gas trade transition equipment can be intuitively seen, and the working condition of the equipment can be judged.
Description
Technical field
The present invention relates to rock gas trading, relate in particular to a kind of rock gas Trade Measures equipment on-line detection method, system and device.
Background technology
Along with building up of transfering natural gas from the west to the east one lineman's journey, the construction of domestic natural gas line has formally entered the great development stage, nationwide pipe network has built up a western line in succession, western two wires, gold two wires, Shan, gas east, river is sent etc., each province has also built the provincial pipe network that spreads all over this province simultaneously, rock gas trade transaction equipment comprises Ultrasonic Wave Flowmeter and chromatograph, simultaneously, along with the construction of a large amount of Gao Long-distance Transmission Pipelines comes into operation in a large number, user passes through SCADA system (Supervisory Control And Data Acquisition data acquisition and supervisor control) collection result for the trade transaction equipment coming into operation in natural gas line at present, and cannot grasp in real time for the operation conditions of these trade transaction equipment, but, the situation of reality is that these trade transaction equipment are sole criterions of settling accounts between natural gas line upstream and downstream, once these equipment break down and cannot on-call maintenance, probably can cause the trade settlement between upstream and downstream to go wrong, thereby cause trade dispute.
Due to current Gao Long-distance Transmission Pipeline distance, have a very wide distribution, corresponding trade transaction equipment also can present the problem such as have a very wide distribution, and because rock gas trade transaction equipment belongs to high-precision equipment, the operations staff of general local station cannot keep in repair or fault diagnosis it, this just causes regular the hurrying back and forth in each station of expert engineer's needs of each natural gas companies, and maintenance can not complete in time.
Take Zhejiang Province's gas distributing system as example, the pipeline that Zhejiang Province's gas distributing system has built up at present has 560 kilometers, plan has 464 kilometers by the pipeline of building, the rock gas trade transaction equipment having put into operation comprises that Ultrasonic Wave Flowmeter and chromatograph surpass 100, and spreads all over whole Zhejiang Province scope.Traditional way is, when certain equipment breaks down while causing trade transaction data to have relatively large deviation, battlefield operations staff can be reflected to company by problem, company sends corresponding expert engineer to drive to rush for scene, due to expert engineer's knowledge of result deviation before going to scene, do not know other any information, so most of situation is to go on-the-spot functional failure judgement reason for the first time or spare part that need to change etc., the company of need to getting back to goes to scene just can deal with problems for the second time after doing corresponding preparation again, wherein there are several problems in this, first, when equipment only occurs result and has obvious deviation, user just can pinpoint the problems, and at this time the ripe difference of trade of reality has produced, easily cause trade dispute, the second, expert engineer need to repeatedly rush towards scene when handling failure, and scene often needs to drive up to a hundred kilometers, can produce larger expense, can not deal with problems rapidly simultaneously.
Summary of the invention
Technical matters to be solved by this invention is: the operation conditions for trade transaction equipment in prior art cannot be grasped in real time, causes the problems such as fault handling difficulty.
Solve the problems of the technologies described above, the invention provides a kind of rock gas Trade Measures equipment on-line detection method, comprise the following steps,
Data acquisition step: utilize I/O server to read from on-the-spot flow computer the data that required flow is taken into account chromatograph by internal network, and be kept in real-time data base;
Comparison step: flow velocity, the velocity of sound, the gain of reading each sound channel of described flowmeter from described real-time data base, and signal to noise ratio (S/N ratio), read the response coefficient of described chromatograph, and compare respectively with preset flow rate warning value, preset velocity of sound warning value, preset gain warning value, preset signal to noise ratio (S/N ratio) warning value and preset response coefficient warning value;
Alarm step: when the described arbitrary data reading exceeds threshold value warning value corresponding thereto, display alarm information.
As a kind of, give an example, described threshold value velocity of sound warning value adopts the integrated theoretical velocity of sound of No. 10 reports of American AGA to calculate, described in the velocity of sound of the flowmeter that reads exceed the velocity of sound of flowmeter that described preset velocity of sound warning value reads described in referring to the difference of described preset velocity of sound warning value over 2/1000ths.
As a kind of, give an example, also comprise a trend step display, the flow velocity of each sound channel of flowmeter reading described in showing by patterned form, the velocity of sound, gain, signal to noise ratio (S/N ratio), the response coefficient of chromatograph, while is with the flow velocity of described each sound channel of flowmeter, the velocity of sound, gain, the trend contrast of the historical data of signal to noise ratio (S/N ratio), trend contrast with the historical data of the response coefficient of described chromatograph, flow velocity when described each sound channel of flowmeter reading, the velocity of sound, gain, signal to noise ratio (S/N ratio), while there is difference in the trend of the response coefficient of chromatograph and the trend of each self-corresponding historical data, display alarm information.
Solve the problems of the technologies described above, the present invention also provides a kind of rock gas Trade Measures equipment on-line detection system, comprise with lower module,
Data acquisition module: for utilizing I/O server to read from on-the-spot flow computer the data that required flow is taken into account chromatograph by internal network, and be kept in real-time data base;
Comparison module: for read flow velocity, the velocity of sound, the gain of each sound channel of described flowmeter from described real-time data base, and signal to noise ratio (S/N ratio), read the response coefficient of described chromatograph, and compare respectively with preset flow rate warning value, preset velocity of sound warning value, preset gain warning value, preset signal to noise ratio (S/N ratio) warning value and preset response coefficient warning value;
Alarm module: for when described in the arbitrary data that reads while exceeding threshold value warning value corresponding thereto, display alarm information.
As a kind of, give an example, described threshold value velocity of sound warning value adopts the integrated theoretical velocity of sound of No. 10 reports of American AGA to calculate, described in the velocity of sound of the flowmeter that reads exceed the velocity of sound of flowmeter that described preset velocity of sound warning value reads described in referring to the difference of described preset velocity of sound warning value over 2/1000ths.
As a kind of, give an example, also comprise a trend display module, flow velocity for each sound channel of flowmeter with reading described in patterned form demonstration, the velocity of sound, gain, signal to noise ratio (S/N ratio), the response coefficient of chromatograph, while is with the flow velocity of described each sound channel of flowmeter, the velocity of sound, gain, the trend contrast of the historical data of signal to noise ratio (S/N ratio), trend contrast with the historical data of the response coefficient of described chromatograph, flow velocity when described each sound channel of flowmeter reading, the velocity of sound, gain, signal to noise ratio (S/N ratio), while there is difference in the trend of the response coefficient of chromatograph and the trend of each self-corresponding historical data, display alarm information.
Solve the problems of the technologies described above, the present invention also provides a kind of rock gas Trade Measures equipment on-line pick-up unit, comprises
Real-time data base and I/O server: for reading field data and saving scene data and historical data;
Server: for described real-time data base and I/O server are installed, be arranged on the system service end software of line monitoring system simultaneously, can configure independent or special-purpose network according to actual conditions;
Terminal computer: for installing analysis software to show historical data and warning information.
Good effect of the present invention is: utilize I/O server from on-the-spot flow computer, to read the significant data that required flow is taken into account chromatograph by internal network, and the data that read threshold value warning value is corresponding thereto compared, Yi corporate HQ sees the information of all rock gas trade transaction equipment, the working condition of judgment device intuitively.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of preferred embodiment of the present invention rock gas Trade Measures equipment on-line detection method
Embodiment
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail.
With reference to Fig. 1, show the method flow diagram of preferred embodiment of the present invention rock gas Trade Measures equipment on-line detection method.Comprise the following steps data acquisition step S101: utilize I/O server from on-the-spot flow computer, to read the data that required flow is taken into account chromatograph by internal network, and be kept in real-time data base; Comparison step S102: flow velocity, the velocity of sound, the gain of reading each sound channel of described flowmeter from described real-time data base, and signal to noise ratio (S/N ratio), read the response coefficient of described chromatograph, and compare respectively with preset flow rate warning value, preset velocity of sound warning value, preset gain warning value, preset signal to noise ratio (S/N ratio) warning value and preset response coefficient warning value; Alarm step S103: when the described arbitrary data reading exceeds threshold value warning value corresponding thereto, display alarm information.
In this preferred embodiment, preset flow rate warning value, preset velocity of sound warning value, preset gain warning value, preset signal to noise ratio (S/N ratio) warning value and preset response coefficient warning value are that the experience of keeping in repair summary according to expert engineer arranges.
As other giving an example, in originally illustrating, preset flow rate warning value, preset velocity of sound warning value, preset gain warning value, preset signal to noise ratio (S/N ratio) warning value and preset response coefficient warning value can also be according to user's requirements set.
As other giving an example, in originally illustrating, described threshold value velocity of sound warning value adopts the integrated theoretical velocity of sound of No. 10 reports of American AGA to calculate, described in the velocity of sound of the flowmeter that reads exceed the velocity of sound of flowmeter that described preset velocity of sound warning value reads described in referring to the difference of described preset velocity of sound warning value over 2/1000ths.
The velocity of sound of flowmeter sound channel is flowmeter produced simultaneously data in calculated flow rate data, this data correctness can directly react the correctness of flowmeter data on flows, theoretical sound velocimeter is at last according to the standard in No. 10 reports of American AGA, according to gas composition, pressure and temperature computation go out the theoretical velocity that sound wave is propagated in gas, utilize the theoretical velocity of sound to compare the real velocity of sound of flowmeter sound channel, whether the velocity of sound that can judge flowmeter sound channel is correct, thereby whether reflection flowmeter data on flows, this determination methods has write domestic JJG standard, it is the current domestic Main Means that carries out velocity of sound demarcation for Ultrasonic Wave Flowmeter.According to the velocity of sound of flowmeter sound channel with according to the difference between the theoretical velocity of sound of No. 10 reporting standards calculating of American AGA, set warning value, make alarm more accurate, malfunction elimination is more accurate.
As a kind of, give an example, after the method step shown in Fig. 1, also comprise a trend step display, the flow velocity of each sound channel of flowmeter reading described in showing by patterned form, the velocity of sound, gain, signal to noise ratio (S/N ratio), the response coefficient of chromatograph, while is with the flow velocity of described each sound channel of flowmeter, the velocity of sound, gain, the trend contrast of the historical data of signal to noise ratio (S/N ratio), trend contrast with the historical data of the response coefficient of described chromatograph, flow velocity when described each sound channel of flowmeter reading, the velocity of sound, gain, signal to noise ratio (S/N ratio), while there is difference in the trend of the response coefficient of chromatograph and the trend of each self-corresponding historical data, display alarm information.
User or expert engineer can be by analysis software the Various types of data of graphical demonstration real time inspection rock gas Trade Measures equipment to judge that whether rock gas Trade Measures equipment is in health status, expert engineer is the regular warning message of checking when company, can when fault just produces, find, and this time the deviation of actual result not obvious often; Expert engineer by the judgement to device history trend, can estimate the state variation of equipment in advance, can carry out emphasis inspection or parts replacement when the overhaul of the equipments, thereby greatly reduce the failure rate of equipment to problematic equipment; When equipment breaks down, expert engineer fully understands the failure message of equipment by native system, can before going site disposal fault, carry out corresponding preparation, the spare part that speciality tool or needs are changed etc., general like this can disposablely dealing with problems, saves a large amount of travel expensess and time.
Preferred embodiment of the present invention rock gas Trade Measures equipment on-line pick-up unit comprises:
Real-time data base and I/O server: for reading field data and saving scene data and historical data;
Server: for described real-time data base and I/O server are installed, be arranged on the system service end software of line monitoring system simultaneously, can configure independent or special-purpose network according to actual conditions;
Terminal computer: for installing analysis software to show historical data and warning information.
The whole fiber optic network that the device of this preferred embodiment utilizes user originally to lay along with pipeline network construction, build special-purpose rock gas trade transaction device-specific net, by gateway, original industry control network is kept apart, avoid causing the impact on industry control network because of a variety of causes; Then in natural gas companies general headquarters, set up server I/O driving and real-time data base are installed, the required device data of system is sent to real-time data base and is preserved by dedicated network, analysis software is reading out data from database, adopt patterned interface display, can make user's duty of discovering device intuitively.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection domain being not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a rock gas Trade Measures equipment on-line detection method, is characterized in that, comprise the following steps,
Data acquisition step: utilize I/O server to read from on-the-spot flow computer the data that required flow is taken into account chromatograph by internal network, and be kept in real-time data base;
Comparison step: flow velocity, the velocity of sound, the gain of reading each sound channel of described flowmeter from described real-time data base, and signal to noise ratio (S/N ratio), read the response coefficient of described chromatograph, and compare respectively with preset flow rate warning value, preset velocity of sound warning value, preset gain warning value, preset signal to noise ratio (S/N ratio) warning value and preset response coefficient warning value;
Alarm step: when the described arbitrary data reading exceeds threshold value warning value corresponding thereto, display alarm information.
2. rock gas Trade Measures equipment on-line detection method according to claim 1, it is characterized in that, described threshold value velocity of sound warning value adopts the integrated theoretical velocity of sound of No. 10 reports of American AGA to calculate, described in the velocity of sound of the flowmeter that reads exceed the velocity of sound of flowmeter that described preset velocity of sound warning value reads described in referring to the difference of described preset velocity of sound warning value over 2/1000ths.
3. according to the rock gas Trade Measures equipment on-line detection method described in right 1 or 2, it is characterized in that,
Also comprise a trend step display, the flow velocity of each sound channel of flowmeter reading described in showing by patterned form, the velocity of sound, gain, signal to noise ratio (S/N ratio), the response coefficient of chromatograph, while is with the flow velocity of described each sound channel of flowmeter, the velocity of sound, gain, the trend contrast of the historical data of signal to noise ratio (S/N ratio), trend contrast with the historical data of the response coefficient of described chromatograph, flow velocity when described each sound channel of flowmeter reading, the velocity of sound, gain, signal to noise ratio (S/N ratio), while there is difference in the trend of the response coefficient of chromatograph and the trend of each self-corresponding historical data, display alarm information.
4. a rock gas Trade Measures equipment on-line detection system, is characterized in that, comprise with lower module,
Data acquisition module: for utilizing I/O server to read from on-the-spot flow computer the data that required flow is taken into account chromatograph by internal network, and be kept in real-time data base;
Comparison module: for read flow velocity, the velocity of sound, the gain of each sound channel of described flowmeter from described real-time data base, and signal to noise ratio (S/N ratio), read the response coefficient of described chromatograph, and compare respectively with preset flow rate warning value, preset velocity of sound warning value, preset gain warning value, preset signal to noise ratio (S/N ratio) warning value and preset response coefficient warning value;
Alarm module: for when described in the arbitrary data that reads while exceeding threshold value warning value corresponding thereto, display alarm information.
5. rock gas Trade Measures equipment on-line detection system according to claim 4, it is characterized in that, described threshold value velocity of sound warning value adopts the integrated theoretical velocity of sound of No. 10 reports of American AGA to calculate, described in the velocity of sound of the flowmeter that reads exceed the velocity of sound of flowmeter that described preset velocity of sound warning value reads described in referring to the difference of described preset velocity of sound warning value over 2/1000ths.
6. according to the rock gas Trade Measures equipment on-line detection system described in right 4 or 5, it is characterized in that, also comprise a trend display module, flow velocity for each sound channel of flowmeter with reading described in patterned form demonstration, the velocity of sound, gain, signal to noise ratio (S/N ratio), the response coefficient of chromatograph, while is with the flow velocity of described each sound channel of flowmeter, the velocity of sound, gain, the trend contrast of the historical data of signal to noise ratio (S/N ratio), trend contrast with the historical data of the response coefficient of described chromatograph, flow velocity when described each sound channel of flowmeter reading, the velocity of sound, gain, signal to noise ratio (S/N ratio), while there is difference in the trend of the response coefficient of chromatograph and the trend of each self-corresponding historical data, display alarm information.
7. a rock gas Trade Measures equipment on-line pick-up unit, is characterized in that, comprises
Real-time data base and I/O server: for reading field data and saving scene data and historical data;
Server: for described real-time data base and I/O server are installed, be arranged on the system service end software of line monitoring system simultaneously, can configure independent or special-purpose network according to actual conditions;
Terminal computer: for installing analysis software to show historical data and warning information.
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| CN110851065A (en) * | 2019-10-21 | 2020-02-28 | 北京京能电力股份有限公司 | Online calculation device and method for generator hydrogen leakage test |
| CN112946167A (en) * | 2021-02-04 | 2021-06-11 | 成都秦川物联网科技股份有限公司 | Energy metering perception control method and system based on chromatography and ultrasonic waves |
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