CN102879481A - Centralized online monitoring of high oil resistant color spectrum - Google Patents
Centralized online monitoring of high oil resistant color spectrum Download PDFInfo
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- CN102879481A CN102879481A CN2012103920815A CN201210392081A CN102879481A CN 102879481 A CN102879481 A CN 102879481A CN 2012103920815 A CN2012103920815 A CN 2012103920815A CN 201210392081 A CN201210392081 A CN 201210392081A CN 102879481 A CN102879481 A CN 102879481A
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Abstract
The invention relates to a transformer oil detection device, which is centralized online monitoring of a high oil resistant color spectrum, which comprises a master control computer and a transformer oil pipeline circulating and controlling system. A plurality of transformers share one oil color spectrum online monitor through the transformer oil pipeline circulating and controlling system. Conventional one-to-one online analyzing system is broken through, and the technology that a plurality of high voltage parallel reactor sets share one oil color spectrum online real time analyzer is adopted so as to put forward a novel control theory, so that the analyzing and monitoring system is more perfect, therefore, the analyzing accuracy and reliability of the transformer oil are ensured, and meanwhile, a lot of fund is saved. As the fund is saved, more transformer substations are provided with online oil color spectrum monitoring devices so as to further ensure safe and stable operation of the device, and the generated benefit is huger.
Description
Technical field
The present invention relates to a kind of transformer oil pick-up unit, namely the high resistance oil chromatography is concentrated on-line monitoring.
Background technology
In the prior art, the air content of high resistance oil (transformer oil, insulating oil) is an important index of oil quality supervision, has stipulated the detailed technology standard among the power industry standard DL/T 703-1999 of the People's Republic of China (PRC) " Gas Chromatographic Determination of gas content in insulating oil ".
At present, transformer is implemented the defective that on-line chromatographic analysis can find in time that transformer exists, and guarantees the good safe and stable operation of transformer.Realize equipment state overhauling, Accident prevention occurs, and improves the economic and social benefits.Improved the power supply reliability of equipment.The Chromatographic Analysis of Transformer oil system all popularizes (power plant and transformer station) in electric system, belongs to the mature technology device.Implement the oil filled electric power equipment fault diagnosis, be very important for the reliability that improves whole safe operation of power system.When oil-filled equipment existed local overheating or shelf depreciation, the insulating oil of trouble location or solid insulator will decomposite small molecule hydrocarbon class gas (such as CH
4, C
2H
6, C
2H
4, C
2H
2Deng) and other gases (such as H
2, CO etc.).Above-mentioned every kind of gas in oil concentration and oil in the total concentration (TCG) of inflammable gas all can be used as the index of transformer equipment diagnosing interior faults.Present oil chromatography analysis monitoring technology has all adopted single mode to list, namely has several transformers just to need several oil chromatography on-line monitoring instrument (chromatograph).The price of analyser from 250,000 to 300,000 does not wait, so the quantity of transformer is more, it is more that the oil chromatography on-line monitoring instrument of corresponding every transformer is equipped with, and enterprise's infusion of financial resources is larger.
Summary of the invention
The objective of the invention is provides a kind of high resistance oil chromatography that reduces equipment investment to concentrate on-line monitoring for above-mentioned deficiency.
Technical solution of the present invention is: the high resistance oil chromatography concentrates on-line monitoring to comprise main control computer, transformer oil pipeline cyclic control system, and many transformers share an oil chromatography on-line monitoring instrument by transformer oil pipeline cyclic control system.
Industrial field bus control technology, the sequential control of high precision electro magnet valve, piston valve, flow valve control etc. have been adopted in the system.In sampling circuit, realize the microcirculation control of flow, valve, circulation etc., guarantee the reliable Measurement accuracy of analyser, guaranteed the accuracy of in-line analyzer.Realization analysis, control, monitoring, printing, form, teletransmission one, motion flow picture, slave computer control, Long-distance Control.
Transformer oil chromatographic on-line monitoring instrument is in the constantly experiment and perfect of traditional colour spectral analysis technology basis process, combines international chromatographic technique, is the fairly perfect online monitoring system of a cover, can detect simultaneously H
2, CO, CH
4, C
2H
6, C
2H
4, C
2H
2Deng six kinds of fault characteristic gases.By the analyzing and diagnosing to fault characteristic gas, can in time capture transformer fault information, scientific guidance equipment operating maintenance.
Advantage of the present invention is: 1, broken through traditional man-to-man on-line analysis system (oily on-line analysis instrument of every corresponding use of the anti-device of high-voltage parallel), adopt many anti-device groups of high-voltage parallel to share the technology of an oil chromatography on line real time instrument, then be to have proposed new control theory, make the analysis monitoring system more perfect, namely guarantee accurate, reliability that transformer oil is analyzed, saved simultaneously substantial contribution.2, owing to having saved investment, can make more transformer station configure online oil chromatography monitoring device, further guarantee the safe and stable operation of equipment, the benefit of generation is huger.
Below in conjunction with accompanying drawing embodiments of the present invention are described in further detail.
Description of drawings
Fig. 1 is pipeline cyclic control system structure diagram of the present invention.
Embodiment
Referring to Fig. 1, the parts label is: oil chromatography on-line monitoring instrument 1, three transformers (#1, #2, #3 transformer) oil-in solenoid valve 2,3,4(represent three transformers), entrance electrical ball valve 5, ebullator 6, outlet electrical ball valve 7, the transformer oil outlet solenoid valve 8,9,10 of three parallel connections, transformer come oily 11, transformer return line 12, PLC controller 13.
The high resistance oil chromatography is concentrated on-line monitoring, comprises main control computer, transformer oil pipeline cyclic control system, and many transformers share an oil chromatography on-line monitoring instrument 1 by transformer oil pipeline cyclic control system.
Described transformer oil pipeline cyclic control system comprises transformer oil entrance solenoid valve 2,3,4, entrance electrical ball valve 5, ebullator 6, oil chromatography on-line monitoring instrument 1, outlet electrical ball valve 7, the transformer oil outlet solenoid valve 8,9,10 of a plurality of parallel connections, the transformer return line 12 of a plurality of parallel connections that connect in turn.
At first oil chromatography on-line monitoring instrument 1 is powered on 1 normal operation of oil chromatography on-line monitoring instrument.PLC powers on and automatically enters recurrent state.At first start # 1 transformer oil entrance solenoid valve 4, open afterwards #1 outlet solenoid valve 10, carry out the analysis of First transformer oil, according to the detection time of oil chromatography on-line monitoring instrument 1 setting, set the switching time of solenoid valve, when oil chromatography on-line monitoring instrument 1 carries out the next one in the time of measuring period, close # 1 transformer oil entrance solenoid valve 4, open # 2 transformer oil entrance solenoid valve 3, behind the time-delay certain hour, close # 1 transformer outlet solenoid valve 10, open # 2 outlet solenoid valve 9, #3 transformer oil, always so circulation afterwards circulate after the one-period.Delay time is to calculate out according to the length of pipeline and flow velocity, if the time-delay purpose be when the #1 conduit running complete, there is not this time-delay, #2 outlet solenoid valve 9 one will occur so and open, the oil that has just begun to flow into the #2 transformer will not be the #2 transformer, but the #1 transformer is stayed the oil in the pipeline, if like this, the oil of transformer will mix, and in order to address this problem, has designed this time-delay.
Experimental example: 500kV transformer station implements.500kV high-voltage shunt reactor group (one group four) include within the monitoring range, only purchase a cover oil chromatography on-line monitoring instrument 1, can will save out 3 oil chromatography on-line monitoring instrument 1, the value of oil chromatography on-line monitoring instrument 1 can be saved 780,000 yuan of equipment funds by 260,000 yuan of calculating.If after all electric substations were all by this arrangements, the economic benefit of generation was considerable.
Claims (2)
1. a high resistance oil chromatography is concentrated on-line monitoring, comprises main control computer, it is characterized in that comprising transformer oil pipeline cyclic control system, and many transformers share an oil chromatography on-line monitoring instrument (1) by transformer oil pipeline cyclic control system.
2. concentrate on-line monitoring according to high resistance oil chromatography claimed in claim 1, it is characterized in that transformer oil pipeline cyclic control system comprises transformer oil entrance solenoid valve (2,3,4), entrance electrical ball valve (5), ebullator (6), oil chromatography on-line monitoring instrument (1), outlet electrical ball valve (7), the transformer oil outlet solenoid valve (8,9,10) of a plurality of parallel connections, the transformer return line (12) of a plurality of parallel connections that connect in turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103920815A CN102879481A (en) | 2012-10-16 | 2012-10-16 | Centralized online monitoring of high oil resistant color spectrum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103920815A CN102879481A (en) | 2012-10-16 | 2012-10-16 | Centralized online monitoring of high oil resistant color spectrum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102879481A true CN102879481A (en) | 2013-01-16 |
Family
ID=47480883
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103920815A Pending CN102879481A (en) | 2012-10-16 | 2012-10-16 | Centralized online monitoring of high oil resistant color spectrum |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382964A (en) * | 2015-08-05 | 2017-02-08 | 特变电工股份有限公司 | Oil metering system |
| CN110579654A (en) * | 2018-06-08 | 2019-12-17 | 上海漕泾热电有限责任公司 | Main transformer oil chromatogram on-line monitoring system |
| CN112326823A (en) * | 2020-10-28 | 2021-02-05 | 国电南京自动化股份有限公司 | Online monitoring device and method for gas in oil of monitoring transformer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2788169Y (en) * | 2005-04-25 | 2006-06-14 | 淄博惠工仪器有限公司 | Transformer oil sample multi-passage sampling device |
| CN202870043U (en) * | 2012-10-16 | 2013-04-10 | 吉林省电力有限公司通化供电公司 | High oil proof concentrated chromatogram online monitor |
-
2012
- 2012-10-16 CN CN2012103920815A patent/CN102879481A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2788169Y (en) * | 2005-04-25 | 2006-06-14 | 淄博惠工仪器有限公司 | Transformer oil sample multi-passage sampling device |
| CN202870043U (en) * | 2012-10-16 | 2013-04-10 | 吉林省电力有限公司通化供电公司 | High oil proof concentrated chromatogram online monitor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382964A (en) * | 2015-08-05 | 2017-02-08 | 特变电工股份有限公司 | Oil metering system |
| CN106382964B (en) * | 2015-08-05 | 2019-08-20 | 特变电工股份有限公司 | A kind of oil-metering system |
| CN110579654A (en) * | 2018-06-08 | 2019-12-17 | 上海漕泾热电有限责任公司 | Main transformer oil chromatogram on-line monitoring system |
| CN112326823A (en) * | 2020-10-28 | 2021-02-05 | 国电南京自动化股份有限公司 | Online monitoring device and method for gas in oil of monitoring transformer |
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Application publication date: 20130116 |