CN105675732A - Device and method for calibrating on-line chromatographic instrument of transformer - Google Patents

Device and method for calibrating on-line chromatographic instrument of transformer Download PDF

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Publication number
CN105675732A
CN105675732A CN201610099634.6A CN201610099634A CN105675732A CN 105675732 A CN105675732 A CN 105675732A CN 201610099634 A CN201610099634 A CN 201610099634A CN 105675732 A CN105675732 A CN 105675732A
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oil
transformer
gas
main tank
tank
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CN201610099634.6A
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CN105675732B (en
Inventor
李艳萍
李勇
魏天学
赵利
汤振宇
田韶楠
崔斌
孙学锋
岳增伟
刘兴华
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State Grid Corp of China SGCC
State Grid Shandong Electric Power Co Ltd
Yantai Power Supply Co of State Grid Shandong Electric Power Co Ltd
Zibo Power Supply Co of State Grid Shandong Electric Power Co Ltd
State Grid of China Technology College
Original Assignee
State Grid Corp of China SGCC
State Grid Shandong Electric Power Co Ltd
Yantai Power Supply Co of State Grid Shandong Electric Power Co Ltd
Zibo Power Supply Co of State Grid Shandong Electric Power Co Ltd
State Grid of China Technology College
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Priority to CN201610099634.6A priority Critical patent/CN105675732B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N2001/2893Preparing calibration standards

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention discloses a device and method for calibrating an on-line chromatographic instrument of a transformer. As a main oil tank, an adjusting oil tank, an auxiliary oil tank and a transformer-oil determined-value sample output system are matched, transformer-oil standard samples with the large capacity and the any-characteristic gas concentration can be accurately prepared, on-line chromatographic calibrating of oil matched with the power transformer is convenient, various characteristic gas ingredients and the content in the oil are accurate and controllable, and constant-value storage can be achieved for a long time at the normal temperature. The prepared transformer oil can be subjected to continuous and constant-pressure outputting, use cost is low, and operation is safe, rapid and convenient. As the transformer oil is recycled and purified, economical and environment-friendly effects are achieved.

Description

Transformer online gc checking aparatus and method
Technical field
The present invention relates to transformer online gc checking aparatus, the present invention also relates to method and the transformer online gc verification method of the transformer oil sample using the true value concentration of dissolved gas of described device preparation.
Background technology
The oil-filled electric equipments such as transformer are in operation, and different fault states can produce different characteristic gas and (mainly comprise CH4、C2H6、C2H4、C2H2、CO、CO2、H2Deng), and be dissolved in transformer oil. Accurately analyze characteristic gas component and the content of Dissolved Gases in Insulating Oil, it can be determined that the safe state of equipment, it has been found that early stage Hidden fault, it is monitor one of oil-filled electric equipment the most effective measure of safe operation.
Transformer online gc is installed on transformer, it is possible to dynamically monitor the concentration of various characteristic gas in transformer oil continuously, for the operation steady in a long-term of Timeliness coverage Hidden fault, guarantee transformer plays a significant role.
At present, in actual production process, the main problem that transformer online gc exists is poor accuracy, it is difficult to the accurately characteristic gas content in detection transformer oil, often fails to report, flase alarm. It is therefore necessary to will regularly with enough volumes, can continuous constant pressure supply, known true value concentration of dissolved gas transformer oil sample verify, ensure the accuracy of its indicating value. Because transformer oil dissolved gas content can change along with the temperature of oil, pressure and sealed state, therefore, but the difficulty that preparation characteristic gas concentration transformer oil accurate and continuous, constant voltage output is really worth sample is very big.
Summary of the invention
The problem to be solved in the present invention be to provide transformer online gc verification device and method, it is possible to conveniently prepare the transformer oil sample of accurate feature gas concentration, and can continuously, constant voltage output, carry out transformer online gc verification.
In order to solve the problem, the device of transformer online gc provided by the present invention verification and the technical scheme of method are as follows:
The device of transformer online gc verification, comprising:
Main tank, constant voltage oil extraction device is established in inside, and for preparation and preservation definite value oil samples, main tank is connected with regulating oil tank, and when oil temperature changes, oil volume variable quantity is stored by regulating oil tank and supplements;
Regulating oil tank, is provided with exhaust-valve and fuel charging valve, it is possible to stores transformer oil, is positioned at main tank upper end, and is connected with main tank;
Auxiliary fuel tank, is connected with main tank, and outside is provided with recycle pump and vacuum pump, and is provided with atomization system, and for cleansing and recycling oil, in removing reuse oil, residual water-content and various gas dissolved impurity are to base oil;
Contaminated product pipeline, comprises the auxiliary fuel tank fuel charging valve that the contaminated product valve controlling to be connected with main tank is connected with auxiliary fuel tank with oil drain pump, control;
Decontamination cycle system, auxiliary fuel tank top is provided with spraying gun, and decontamination cycle pipeline comprises the recycle pump of auxiliary connection tank bottoms, and described recycle pump is connected with interchanger by two-way valve, and described interchanger is connected with main tank and auxiliary fuel tank by contaminated product pipeline;
Gas control equipment, comprise that standard gas gas cylinder, balance gas bottle and corresponding gas enter sample proportional valve, balance gas enters sample proportional valve, also comprise and manually enter sample batchmeter and corresponding manual sampling valve for what change gas concentration, described standard gas gas cylinder, balance gas bottle sample batchmeter is connected with inlet pipe by four-way web member with manually entering, described inlet pipe is connected with main tank;
Refiltered oil container, is connected with auxiliary fuel tank with main tank by decontamination cycle pipeline;
Transformer oil is really worth sample output system: comprise transformer online gc, and described transformer online gc one end is connected with main tank by really value transformer oil delivery valve, and the other end connects refiltered oil container.
Further, described main tank is rugby type pressure vessel, constant pressure arrangement, pressure transmitter and two-way air pump that described oil extraction device comprises the sacculus that can fully fill main tank inner chamber, controls balloon pressure, the bottom of described sacculus is connected with airtight bottom main tank, and sacculus spheroid is oil-resistant rubber material.
Further, it being provided with high oil level liquid level sensor in described regulating oil tank, main tank bottom is provided with low oil level liquid level sensor.
Further, described auxiliary fuel tank volume is the twice of main tank, and is back taper bottom described auxiliary fuel tank.
Further, described inlet pipe and main tank are provided with assist gas dissolver, described assist gas dissolver comprises the threeway sleeve pipe connecting inlet pipe, in-line, outlet line respectively, described inlet pipe is provided with sifter, described sifter is spongy structure, described sifter micropore size is 10~20 microns, it is possible to will treat that molten gas is refined into microbubble, is dissolved into rapidly in transformer oil completely.
The present invention provides the method that transformer online gc verifies, and concrete steps are as follows:
(1) system vacuum: the vacuum tightness being used for transformer online gc checking aparatus is maintained 550Pa~850Pa, leaves standstill 10~20 minutes.
(2) system oiling: after being filtered by refining plant by transformer oil, injects auxiliary fuel tank.
(3) reuse oil purification: the transformer oil after filtering is heated to 70~80 DEG C, pass through atomisation unit, transformer oil after heating is atomized into the drop of 0.05mm, and under negative pressure state, being dissolved in transformer oil moisture vaporization becomes water vapor, the solubleness of foreign gas reduces, all from oil, loss out, discharges auxiliary fuel tank with vacuum pump, and transformer oil falls into bottom auxiliary fuel tank, proceeding heating, atomization, deimpurity circulation, this step continues to carry out 90min~120min.
(4) gas dissolved transformer oil sample preparation really it is worth: according to default characteristic gas concentration, comprise characteristic gas concentration and balance gas concentration, calculate the various gas volumes needing to add, transformer oil in auxiliary fuel tank is injected main tank, make the transformer oil after purification main tank and contaminated product pipeline 50 DEG C, 10~20kPa when sealing and circulating.It is 25~30kPa that standard gas to be dissolved adjusts pressure after secondary pressure, then the gas to be dissolved of accurate quantification is injected oil via assist gas dissolver, aerating speed is 0.05L/min, circulation 15min, then quantitative injection balance gas, 10~90% saturation ratios can be set, circulation, oil is fully mixed with gas to be dissolved.
(5) transformer online gc verification: connection transformer oil samples exports interface and transformer online gc enters oil interface, connection transformer online gc oil out port and drain line. Also constant voltage of inflated being pressurizeed, to 130kPa, is opened the transformer oil that transformer oil delivery valve can provide continuously, constant voltage exports and is really worth sample, carry out transformer online gc verification, it may also be useful to the oil crossed drains into refiltered oil container.
Further, before that transformer online gc checking aparatus is emptying in step (1): operating transformer oil remaining in by regulating oil tank enters in main tank, by two-way air pump to sacculus pressurization and constant voltage to 130kPa, transformer oil remaining in main tank is expelled in refiltered oil container, by recycle pump, the operating transformer oil in auxiliary fuel tank is expelled in refiltered oil container.
Further, described balance gas is nitrogen.
Further, gas dissolved comprises the characteristic gas CH that need to calibrate4、C2H6、C2H4、C2H2、CO、CO2、H2In or several.
Further, described gas to be dissolved comprises CH4、C2H6、C2H4、C2H2、CO、CO2、H2In or several.
The useful effect of the present invention is: the transformer oil that can accurately produce the arbitrary characteristics gas concentration of Large Copacity, and in oil, various characteristic gas composition and content are accurately controlled, and can preserve long-time permanent value under normal temperature. The transformer oil made can continuously, constant voltage export, the verification of transformer online gc can be advantageously used in, effectively ensure the safe operation of power transformer. Operational safety, efficient and convenient, it may also be useful to cost is low. The mode that transformer oil adopts reuse purification, recycles, economic environmental protection.
Accompanying drawing illustrates:
Fig. 1 is present configuration schematic diagram;
Fig. 2 is assist gas dissolver structural representation in the present invention.
In figure: 1-vacuum pump, 2-spraying gun, 3-auxiliary fuel tank, 4-draining valve, 5-fuel charging valve, 6-recycle pump, the two-way valve of 7-, 8-interchanger, 9-auxiliary fuel tank fuel charging valve, 10-oil drain pump, the low oil level liquidometer of 11-, 12-sacculus, 13-main tank, 14-main tank mixing oil valve, 15-refining plant, 16-constant pressure arrangement, the two-way air pump of 17-, 18-refiltered oil container, 19-is really worth transformer oil delivery valve, 20-standard gas gas cylinder, 21-balances gas bottle, 22-gas enters sample proportional valve, 23-balances gas and enters sample proportional valve, 24-manually enters sample batchmeter, the manual sampling valve of 25-, 26-intake valve, 27-regulating oil tank, 28-height oil level liquidometer, 29-exhaust-valve, 30-assist gas dissolver, 31-fuel charging valve, 32-inlet pipe, 33-transformer online gc, 34-threeway sleeve pipe, 35-sifter, 36-in-line, 37-outlet line.
Embodiment
Below in conjunction with accompanying drawing and mode of specifically implementing, the present invention is further described.
Transformer online gc checking aparatus, comprising:
Regulating oil tank 27, is provided with exhaust-valve 29, fuel charging valve 31, it is possible to stores transformer oil, is positioned at main tank 13 upper end, and is connected with main tank 13;
Main tank 13, constant voltage oil extraction device is established in inside, for preparation and preservation definite value oil samples. Main tank 13 is connected with regulating oil tank 27, and when oil temperature changes, oil volume variable quantity is stored by regulating oil tank 27 and supplemented;
Auxiliary fuel tank 3, is connected with main tank 13, and outside is provided with recycle pump 6 and vacuum pump 1, and inside is provided with atomization system, and for cleansing and recycling oil, in removing reuse oil, residual water-content and various gas dissolved impurity are to base oil;
Contaminated product pipeline, comprises the auxiliary fuel tank fuel charging valve 9 that the contaminated product valve 14 controlling to be connected with main tank 13 is connected with auxiliary fuel tank with oil drain pump 10, control;
Decontamination cycle pipeline, reuse oil enters auxiliary fuel tank 3 by refining plant 15, described auxiliary fuel tank 3 top is provided with spraying gun 2, decontamination cycle pipeline comprises the recycle pump 6 bottom auxiliary connection fuel tank 3, described recycle pump is connected with interchanger 8 by two-way valve 7, and described interchanger 8 is connected with main tank 13 and auxiliary fuel tank 3 by contaminated product pipeline;
Gas control equipment, comprise that standard gas gas cylinder 20, balance gas bottle 21 and corresponding gas enter sample proportional valve 22, balance gas enters sample proportional valve 23, also comprise and manually enter sample batchmeter 24 and corresponding manual sampling valve 25 for what change gas concentration, described standard gas gas cylinder 20, balance gas bottle 21 sample batchmeter 24 is connected with inlet pipe 32 by four-way web member with manually entering, described inlet pipe 32 is connected with main tank 13;
Refiltered oil container 18, is connected with auxiliary fuel tank 3 with main tank 13 by decontamination cycle pipeline;
Transformer online gc verifies, and transformer oil is really worth sample through delivery port 19, is connected with transformer online gc to be verified, and constant voltage, continuously input transformer online gc, verify, and enters refiltered oil container 18 with the transformer oil crossed.
Further, described main tank 3 is rugby type pressure vessel, constant pressure arrangement 16, pressure transmitter and two-way air pump 17 that described oil extraction device comprises the sacculus 12 that can fully fill main tank 3 inner chamber, controls sacculus 12 pressure, the bottom of described sacculus 12 is connected with airtight bottom main tank 13, and sacculus 12 spheroid is oil-resistant rubber material.
Further, it being provided with high oil level liquid level sensor 29 in described regulating oil tank 27, main tank 13 bottom is provided with low oil level liquid level sensor 11, can accurately control oil inlet quantity.
Further, described auxiliary fuel tank 3 volume is 2 times of main tank 13, and is back taper bottom described auxiliary fuel tank 3.
Further, described inlet pipe 32 is provided with assist gas dissolver 30 with main tank 13 in-line, and described assist gas dissolver 30 comprises respectively
Connect the threeway sleeve pipe 34 of inlet pipe 32, in-line 36, outlet line 37, described inlet pipe 32 is provided with sifter 35, described sifter 35 is spongy structure, described sifter 35 micropore size is 10~20 microns, can will treat that molten gas is refined into microbubble, be dissolved into rapidly in transformer oil completely.
Further, described auxiliary fuel tank 3 inside is provided with temperature sensor, it is possible to accurately control oil temperature.
Further, described refining plant 15 comprises the metal sintering strainer removing greater particle size impurity and removes the polymer adsorption post of most of moisture and greasy filth.
When preparation transformer oil feature gas dissolved is really worth sample, if remnants have transformer oil in device, first transformer oil remaining in regulating oil tank 27 is entered in main tank 13, then by two-way air pump 17 to sacculus 12 pressurize and constant voltage to 130kPa, transformer oil is expelled in refiltered oil container 18, by recycle pump 6, transformer oil remaining in auxiliary fuel tank 3 is expelled in refiltered oil container 18;
After remaining transformer oil is emptying, discharging gas in sacculus 12 by two-way air pump 17, close sacculus air intake valve, open vacuum pump 1 and vacuumize in device, maintenance vacuum tightness is 550Pa~850Pa, leaves standstill 10~20min.
After transformer oil in refiltered oil container 18 is filtered by refining plant 15, remove most of moisture and all mechanical impuritys, inject main tank 13 and regulating oil tank 27, stop when arriving high oil level liquid level sensor 29 into oil, control two-way air pump 17 to sacculus 12 pressurize and constant voltage to 130kPa, by all transformer oil inject auxiliary fuel tank 3.
Then the transformer oil deep purifying in auxiliary fuel tank 3 is carried out, first ON cycle pump 6, vacuum pump 1, two-way pump 7 and constant temperature heating device 8, transformer oil is heated to 70~80 DEG C by constant temperature heating device 8, the spraying gun 2 arranged through auxiliary fuel tank 3 top, transformer oil is atomized into the drop of 0.1mm, in oil, all gas dissolvedes and moisture loss from oil out, discharge auxiliary fuel tank 3 with vacuum pump 1, and this step continues to carry out 90min~120min.
After the refiltered oil that foreign matter content is higher is carried out deep purifying process, detection oil dissolved gas content, investigates the purification degasifying effect of oil, and result is such as table 1, and decontamination effect improving is good.
The purification degasifying effect test of table 1 refiltered oil
Main tank 13 is injected through the transformer oil of deep purifying process by auxiliary fuel tank 3 fuel charging valve 9 by auxiliary fuel tank 3, close auxiliary fuel tank fuel charging valve 9, by oil drain pump 10 and mixing oil valve 14 50 DEG C, 10~20kPa when in contaminated product pipeline and main tank 13 sealing and circulating, it is 25~30kPa that standard gas adjusts pressure after secondary pressure, setting balance gas 50% saturation ratio, then the gas to be dissolved of accurate quantification is injected oil by inlet pipe 32 and assist gas dissolver 30, aerating speed is 0.05L/min, and described gas to be dissolved comprises CH4、C2H6、C2H4、C2H2、CO、CO2、H2In or several, circulation, make oil fully mix with gas to be dissolved. Sacculus 12 is inflated pressurization and constant voltage to 130kPa, open really value transformer oil delivery valve 19 and gather the oily sample prepared, with the concentration value having detected transformer oil dissolved gas by the laboratory Agilent chromatographic instrument of measurement verification as standard value. Connection transformer online gc import and really value transformer oil delivery valve 19, it is achieved continuous, constant voltage output transformer oil is really worth sample, carries out transformer online gc verification.
Detect the transformer oil sample prepared, contrast pre-set value, investigate both identical degree. Test-results is as good in the identical degree of table 2, compound concentration and actual concentrations.
The identical degree test of table 2 compound concentration and actual concentrations
By sacculus 12 inflated with nitrogen constant voltage and volumetric expansion, will prepare definite value oil sample malleation discharge, discharge oil volume fill by airbag inflation, therefore between whole transformer oil period of output, transformer oil is in strict seal state, is single liquid phase, producing without cavity, oil dissolved gas value is stablized.
Detect in this device transformer oil storage 0h(original amount), 24h, 96h, each gas dissolved component value, investigates each gas dissolved component stability. Test-results, such as table 3, has good stability.
The stability test of oil samples in table 3 main tank
Transformer online gc detection indicating value and the same sample detection result of laboratory Agilent chromatographic instrument after contrast verification, investigate the rear transformer online gc detection accuracy of verification, comparative test result is such as table 4, and both detected results coincide degree well, and online gc indicating value is accurate.
Table 4 transformer online gc and laboratory gas chromatograph detection comparative test result
After this device has been researched and developed, for the verification of power transformer online gc.Having completed the oily online gc verification of 3 districts and cities' 31 transformers, after verification, the Detection accuracy of oil online gc is all up to standard, flase alarm does not occur, fails to report police.

Claims (10)

1. the device of transformer online gc verification, comprising:
Main tank, constant voltage oil extraction device is established in inside, for preparation and preservation definite value oil samples;
Regulating oil tank, is provided with exhaust-valve and fuel charging valve, it is possible to stores transformer oil, is positioned at main tank upper end, and is connected with main tank;
Auxiliary fuel tank, is connected with main tank, and outside is provided with recycle pump and vacuum pump, and is provided with atomization system, and for cleansing and recycling oil, in removing reuse oil, residual water-content and various gas dissolved impurity are to base oil;
Contaminated product pipeline, comprises the auxiliary fuel tank fuel charging valve that the contaminated product valve controlling to be connected with main tank is connected with auxiliary fuel tank with oil drain pump, control;
Decontamination cycle system, auxiliary fuel tank top is provided with spraying gun, and decontamination cycle pipeline comprises the recycle pump of auxiliary connection tank bottoms, and described recycle pump is connected with interchanger by two-way valve, and described interchanger is connected with main tank and auxiliary fuel tank by contaminated product pipeline;
Gas control equipment, comprise that standard gas gas cylinder, balance gas bottle and corresponding gas enter sample proportional valve, balance gas enters sample proportional valve, also comprise and manually enter sample batchmeter and corresponding manual sampling valve for what change gas concentration, described standard gas gas cylinder, balance gas bottle sample batchmeter is connected with inlet pipe by four-way web member with manually entering, described inlet pipe is connected with main tank;
Refiltered oil container, is connected with auxiliary fuel tank with main tank by decontamination cycle pipeline;
Transformer oil is really worth sample output system, comprises the transformer online gc that need to verify, and described transformer online gc one end is connected with main tank by really value transformer oil delivery valve, and the other end connects refiltered oil container.
2. the device of transformer online gc verification according to claim 1, it is characterized in that, described main tank is rugby type pressure vessel, constant pressure arrangement, pressure transmitter and two-way air pump that described oil extraction device comprises the sacculus that can fully fill main tank inner chamber, controls balloon pressure, being tightly connected bottom the bottom of described sacculus and main tank, sacculus spheroid is oil-resistant rubber material.
3. the device of transformer online gc verification according to claim 1, it is characterised in that, it is provided with high oil level liquid level sensor in described regulating oil tank, main tank bottom is provided with low oil level liquid level sensor.
4. the device of transformer online gc verification according to claim 1, it is characterised in that, described auxiliary fuel tank volume is the twice of main tank, and is back taper bottom described auxiliary fuel tank.
5. the device of transformer online gc verification according to claim 1, it is characterized in that, described inlet pipe and main tank are provided with assist gas dissolver, described assist gas dissolver comprises the threeway sleeve pipe connecting inlet pipe, in-line, outlet line respectively, described inlet pipe is provided with sifter, and described sifter is spongy structure, and described sifter micropore size is 10~20 microns, can will treat that molten gas is refined into microbubble, be dissolved into rapidly in transformer oil completely.
6., by the method for the device school inspection transformer online gc of the verification of transformer online gc described in claim 1, concrete steps are as follows:
(1) system vacuum: system vacuumizes, maintains 550Pa~850Pa by the vacuum tightness of transformer online gc checking aparatus, leaves standstill 10~20 minutes;(2) system oiling: after being filtered by refining plant by transformer oil, injects auxiliary fuel tank;
(3) reuse oil purification: the transformer oil after filtering is heated to 70~80 DEG C, pass through atomisation unit, transformer oil after heating is atomized into the drop of 0.05mm, and under negative pressure state, being dissolved in transformer oil moisture vaporization becomes water vapor, the solubleness of foreign gas reduces, all from oil, loss out, discharges auxiliary fuel tank with vacuum pump, and transformer oil falls into bottom auxiliary fuel tank, proceeding heating, atomization, deimpurity circulation, this step continues to carry out 90min~120min;
(4) gas dissolved transformer oil sample preparation really it is worth: according to default characteristic gas concentration, comprise characteristic gas concentration and balance gas concentration, calculate the various gas volumes needing to add, transformer oil in auxiliary fuel tank is injected main tank, make the transformer oil after purification in main tank and contaminated product pipeline, at 50 DEG C, sealing and circulating when 10~20kPa, it is 25~30kPa that standard gas to be dissolved adjusts pressure after secondary pressure, then the gas to be dissolved of accurate quantification is injected oil via assist gas dissolver, aerating speed is 0.05L/min, circulation 15min, then quantitative injection balance gas, 10~90% saturation ratios can be set, circulation, oil is fully mixed with gas to be dissolved,
Transformer online gc verifies: connection transformer oil samples exports interface and transformer online gc enters oil interface, connection transformer online gc oil out port and drain line.
7. the pressurization of pair inflated constant voltage are to 130kPa, carry out transformer online gc verification, it may also be useful to the oil crossed drains into refiltered oil container.
8. transformer online gc verification method according to claim 6, it is characterized in that, before that transformer online gc checking aparatus is emptying in step (1): operating transformer oil remaining in by regulating oil tank enters in main tank, by two-way air pump to sacculus pressurization and constant voltage to 130kPa, transformer oil remaining in main tank is expelled in refiltered oil container, by recycle pump, the operating transformer oil in auxiliary fuel tank is expelled in refiltered oil container.
9. transformer online gc verification method according to claim 6, it is characterised in that, described balance gas is nitrogen.
10. transformer online gc verification method according to claim 6, it is characterised in that, gas dissolved comprises the characteristic gas CH that need to calibrate4、C2H6、C2H4、C2H2、CO、CO2、H2In or several; Described gas to be dissolved comprises CH4、C2H6、C2H4、C2H2、CO、CO2、H2In or several.
CN201610099634.6A 2016-02-24 2016-02-24 Transformer online gc calibration equipment and method Expired - Fee Related CN105675732B (en)

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CN107957362A (en) * 2017-12-28 2018-04-24 国网安徽省电力公司电力科学研究院 Gas-liquid mixed distributing device with filtering function
CN108014665A (en) * 2017-12-28 2018-05-11 国网安徽省电力公司电力科学研究院 Gas-liquid mixed distributing device
CN109270188A (en) * 2018-11-05 2019-01-25 国网河北省电力有限公司电力科学研究院 The device for formulating and method of standard oil sample of dissolved gas in transformer oil
CN111453217A (en) * 2019-09-04 2020-07-28 国网四川省电力公司电力科学研究院 On-site inspection or calibration oil storage device and method for oil chromatography on-line monitoring device in high-altitude area
CN112461706A (en) * 2020-11-13 2021-03-09 广西电网有限责任公司电力科学研究院 Insulating oil gas content tester calibration device applied to vacuum differential pressure method principle
CN113654837A (en) * 2021-06-18 2021-11-16 国网山东省电力公司淄博供电公司 Oil gas simulation sampling device of transformer
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CN114858946A (en) * 2022-06-04 2022-08-05 山东五岳电器有限公司 Online monitoring device and calibration method for gas in transformer oil
CN115236227A (en) * 2022-07-15 2022-10-25 华北电力科学研究院有限责任公司 Online chromatography network access detection method and system
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