CN203595689U - Simulation system for chromatographic on-line detection of transformer oil gas - Google Patents
Simulation system for chromatographic on-line detection of transformer oil gas Download PDFInfo
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- CN203595689U CN203595689U CN201320585970.3U CN201320585970U CN203595689U CN 203595689 U CN203595689 U CN 203595689U CN 201320585970 U CN201320585970 U CN 201320585970U CN 203595689 U CN203595689 U CN 203595689U
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Abstract
A simulation system for chromatographic on-line detection of a transformer oil gas is characterized by comprising an oil sample configuration unit and an on-line test unit; the oil sample configuration unit comprises a vacuum pump, a shaking table and a high-purity gas, and is used for completing degassing and preparing on an oil sample; the on-line test unit comprises a circulating oil path, a circulating pump, a blowing air pump, an oil tank and an oil path temperature control device; connectors connected with an oil gas on-line monitoring device are arranged on the oil tank and the circulating oil path, a sampling opening is formed in the oil tank, the circulating pump drives the oil sample to circulate in the circulating oil path and the oil tank, the oil path temperature control device is arranged on the circulating oil path and used for controlling the temperature of the oil sample in the on-line test unit, and the blowing air pump provides carrier gas.
Description
Technical field
The utility model relates to transformer detection technique, particularly relates to transformer oil complexion and composes online detection simulation system and method.
Background technology
Power transformer, high-voltage shunt reactor are as one of visual plant of electric system, and its operational reliability directly affects the safe operation of electric system.Dissolved gas analysis (Dissolved Gases Analysis is called for short DGA) is the main method of diagnosing oil-filled electric equipment built-in electrical insulation fault in current electric system.
In oil, gas on-line monitoring method mainly contains infra-red sepectrometry, the photocaustic spectroscopy etc. that chromatography, array-type sensor method and Abroad in Recent Years are researched and developed at present, gas monitoring instrument in oil at present, all use specific process that gas is separated from oil, using network that field data is transferred to monitoring center automatically, in real time focuses on: and the detection method to gas and the detection index that can reach are each has something to recommend him.
Oil dissolved gas on-line monitoring is the important foundation that realizes Condition Maintenance Method of Transformer.Utilize the oil dissolved gas on-line monitoring equipment of chromatographic principles comparatively ripe, the experience of existing successful operation for many years.The structure of chromatogram monitoring and testing laboratory's chromatographic work station is very different, and gordian technique difference is also very large, and the performance of product is very different.
Utility model content
For the defect existing in prior art, the utility model provides a kind of transformer oil complexion spectrum analogue system:
A kind of transformer oil complexion is composed online detection simulation system, it is characterized in that: comprise oil sample dispensing unit and on-line testing unit;
Oil sample dispensing unit, comprises vacuum pump, shaking table, and high-purity gas, completes the degassed and sample to oil sample;
Wherein, on-line testing unit comprises circulating oil path, ebullator, air-blowing pump, fuel tank, with oil circuit temperature control equipment, and: on fuel tank and circulating oil path, be provided with oil in the joint of gas on-line monitoring equipment connection, on fuel tank, be provided with sample tap, ebullator promotes oil sample and circulates in circulating oil path and fuel tank, is provided with oil circuit temperature control equipment on circulating oil path, for controlling the temperature of oil sample in online test cell, air-blowing pump provides carrier gas.
Further: described on-line monitoring equipment is TransFix transformer oil on-line monitoring system.
The beneficial effects of the utility model are: guarantee into the on-line monitoring equipment performance of network operation reliable, the reliability of the characteristic of check/checking on-line monitoring equipment.
Accompanying drawing explanation
Fig. 1 is on-line testing simulation unit structural representation;
Fig. 2 is working-flow figure.
Embodiment
Below in conjunction with accompanying drawing, further set forth the utility model.Should be understood that these embodiment are only not used in restriction scope of the present utility model for the utility model is described.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after having read the content of the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
As shown in Figure 1-2.
Described in construction transformer, the key of on-line monitoring equipment Inspection analogue system is to build temperature, the controlled controllable oil sample dispensing unit of the constant volume transformer oil circulation system, each gas composition concentration of pressure.Use on-line monitoring equipment and off-line chromatograph to detect compare of analysis to the oil sample in recycle oil system, the performance of checking on-line monitoring equipment.
Transformer oil complexion of the present utility model is composed online detection simulation system, comprises oil sample dispensing unit, on-line testing unit and comparative analysis unit; Oil sample dispensing unit.
1, oil sample dispensing unit
Oil sample dispensing unit, comprises vacuum pump, shaking table, high-purity gas etc., adopts the principle of concentration and dilution to prepare the circulation oil sample that contains certain concentration gas.Complete oil sample configuration by following steps:
1) degassed: the transformer oil of certain volume to be carried out to degassed operation with vacuum pump, to facilitate the dissolving of gas to be measured.
2) calculate: the volume that calculates the specific high-purity gas needing according to the densimeter of the volume of whole on-line testing unit and the specific gas that will reach.
3) mix: according to the high-purity gas volume calculating and specific gas, the saturation solubility in oil calculates the volume of the degassed oil sample needing, and the high-purity gas of above-mentioned volume is joined in the degassed oil sample of designated volume.
4) dissolve: the degassed oil sample that has added high-purity gas is fixed on shaking table high-purity gas is dissolved in degassed oil sample completely.
2, on-line testing unit
On-line testing unit comprises circulating oil path, ebullator, air-blowing pump, fuel tank, oil circuit temperature control equipment etc., on fuel tank and circulating oil path, be provided with oil in the joint of gas on-line monitoring equipment connection, on fuel tank, be provided with sample tap, for the sampling of off-line sample, carry out off-line test.Ebullator promotes oil sample and circulates in circulating oil path and fuel tank, is provided with oil circuit temperature control equipment, for controlling the temperature of oil sample in online test cell on circulating oil path.Air-blowing pump provides carrier gas, and under the promotion of carrier gas strength, characteristic gas is sent to the monitoring mouth of on-line monitoring equipment.On-line monitoring equipment can use existing transformer oil complexion spectrometer, as TransFix transformer oil on-line monitoring system.Complete oil sample on-line testing by following steps.
1) install: described on-line monitoring equipment is arranged on the corresponding interface in on-line testing unit in suitable mode.
2) environment setting: the temperature conditioning unit that online test cell is set according to test objective and conditional request is suitable value, and starts to carry out the temperature control of on-line testing unit.
3) dilution: cut off being connected of described on-line monitoring equipment and on-line testing unit, high concentration oil sample after concentrated is joined in on-line testing unit with peristaltic pump, under the effect of circulating oil pump, allow high concentration oil sample be diluted to uniformly to obtain in on-line testing unit the gas that contains certain concentration and the concentration oil sample that circulates uniformly.
4) detect: open being connected of described on-line monitoring equipment and on-line testing unit, allow described on-line monitoring equipment can touch the circulation oil sample that contains certain concentration gas, and detect.
5) record: according to the characteristic of the described on-line monitoring equipment of difference, record the data that described on-line monitoring equipment provides after special time.
3, comparative analysis unit
By adopting the principle of laboratory stratographic analysis to determine the concentration of circulation oil sample, and by comparing with the result of on-line testing unit the Measurement results that provides described on-line monitoring equipment.Comprise analysis of measurement errors, cross-sensitivity check, minimal detection period check, measuring repeatability check, data transmission check and data analysis function inspection.
Analysis of measurement errors, measuring error=(on-line monitoring device measuring data-laboratory gas chromatograph measurement data)/laboratory gas chromatograph measurement data × 100%.
Measuring repeatability check, for same oil sample, carries out the analysis of 5 on-line monitoring equipment gas composition in oils continuously, relatively 5 measurement results.
Minimal detection period check, device should be able to be according to the minimal detection period work setting, and the time that completes each detection is consistent with setting-up time, and each testing result is answered the requirement of coincidence measurement error criterion value.
Cross-sensitivity checks, cross-sensitivity is the size impact that the measurement of a certain gas content should not be subject to other gas componant, in oil sample, be filled with a certain amount of hydrogen or hydrocarbon gas as interference gas, carry out the analysis of on-line monitoring equipment gas composition in oil, result meets error requirements.
Data transmission check, is connected with monitoring device to be measured computing machine by USB or other communication modes, should be able to carry out data in situ derivation and preservation.
Data analysis, can be provided concentration, absolute gas production rate, relative gas production rate several data index by checking device, and adopts the multiple display modes such as reimbursement, trend map, real time data histogram, single component show, many components show simultaneously.
Claims (2)
1. transformer oil complexion is composed an online detection simulation system, it is characterized in that: comprise oil sample dispensing unit and on-line testing unit;
Oil sample dispensing unit, comprises vacuum pump, shaking table, and high-purity gas, completes the degassed and sample to oil sample;
Wherein, on-line testing unit comprises circulating oil path, ebullator, air-blowing pump, fuel tank, with oil circuit temperature control equipment, and: on fuel tank and circulating oil path, be provided with oil in the joint of gas on-line monitoring equipment connection, on fuel tank, be provided with sample tap, ebullator promotes oil sample and circulates in circulating oil path and fuel tank, is provided with oil circuit temperature control equipment on circulating oil path, for controlling the temperature of oil sample in online test cell, air-blowing pump provides carrier gas.
2. transformer oil complexion according to claim 1 is composed online detection simulation system, it is characterized in that: described on-line monitoring equipment is TransFix transformer oil on-line monitoring system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585970.3U CN203595689U (en) | 2013-09-23 | 2013-09-23 | Simulation system for chromatographic on-line detection of transformer oil gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320585970.3U CN203595689U (en) | 2013-09-23 | 2013-09-23 | Simulation system for chromatographic on-line detection of transformer oil gas |
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| CN203595689U true CN203595689U (en) | 2014-05-14 |
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| CN201320585970.3U Expired - Lifetime CN203595689U (en) | 2013-09-23 | 2013-09-23 | Simulation system for chromatographic on-line detection of transformer oil gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257068A (en) * | 2019-10-22 | 2020-06-09 | 许昌许继软件技术有限公司 | Method and device for replacing dissolved gas in transformer oil |
| CN114324697A (en) * | 2021-12-28 | 2022-04-12 | 国网黑龙江省电力有限公司电力科学研究院 | Methanol sampling detection device in transformer oil |
-
2013
- 2013-09-23 CN CN201320585970.3U patent/CN203595689U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257068A (en) * | 2019-10-22 | 2020-06-09 | 许昌许继软件技术有限公司 | Method and device for replacing dissolved gas in transformer oil |
| CN111257068B (en) * | 2019-10-22 | 2024-02-06 | 许昌许继软件技术有限公司 | Method and device for replacing dissolved gas in transformer oil |
| CN114324697A (en) * | 2021-12-28 | 2022-04-12 | 国网黑龙江省电力有限公司电力科学研究院 | Methanol sampling detection device in transformer oil |
| CN114324697B (en) * | 2021-12-28 | 2023-10-03 | 国网黑龙江省电力有限公司电力科学研究院 | Sampling and detecting device for methanol in transformer oil |
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Granted publication date: 20140514 |
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| CX01 | Expiry of patent term |