CN105758672A - Preparing and collecting device and preparing and collecting method for oil sample of analogue transformer - Google Patents
Preparing and collecting device and preparing and collecting method for oil sample of analogue transformer Download PDFInfo
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- CN105758672A CN105758672A CN201610099636.5A CN201610099636A CN105758672A CN 105758672 A CN105758672 A CN 105758672A CN 201610099636 A CN201610099636 A CN 201610099636A CN 105758672 A CN105758672 A CN 105758672A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1445—Overpressure, pressurisation at sampling point
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Abstract
The invention relates to a preparing and collecting device and a preparing and collecting method for an oil sample of an analogue transformer. By manually matching a main oil tank, an adjusting oil tank and an auxiliary oil tank, transformer oil of multiple typical transformers in a failure state can be accurately produced; various characteristic gas components and contents in oil can be accurately controlled and can be preserved at normal temperature at a constant value. The device provides multiple parallel stations, can completely simulate actual collecting process of the oil sample of the transformer, and can be safely and conveniently used for works such as skill training, examination, technological competition and the like of professional practitioners for oil chemical examination, electrical test/examination and the like; the device is low in application cost, safe in operation, high in integrating degree with field operation, convenient and quick; transformer oil adopts a mode of reutilization and purifying, and recycling, so economy and environmental protection are realized.
Description
Technical field
The present invention relates to a kind of dry run transformer oil sample preparation, harvester and method, the method that the invention also relates to prepare with described device, gather analogue transformer oil samples.
Background technology
The oil-filled electric equipments such as transformator are in operation, and different malfunctions can produce different characteristic gas and (mainly include CH4、C2H6、C2H4、C2H2、CO、CO2、H2Deng), and be dissolved in insulating oil.The characteristic gas component of accurate analysis Dissolved Gases in Insulating Oil and content, it can be determined that the safe condition of equipment, it has been found that early stage Hidden fault, be monitor one of maximally effective measure of oil-filled electric equipment safe operation；
Because Oil Dissolved Gases Concentration can change along with the temperature of oil, pressure and sealing state, therefore the overall process gathering oil samples from the oil-filled electric equipments such as transformator must carry out when totally-enclosed, malleation, forbid oil samples and air contact, forbid sampling below atmospheric pressure.
From the transformator run, the correct oil samples that gathers is subsequent dissolution gas composition analysis and the basis of fault diagnosis work, is again the basic vocational skills of oil business laboratory personnel, is also the important content of practitioner's operation training and examination.But the security reason based on high voltage alive equipments such as transformators, the practical operation training and assessment of charging equipment cannot be realized, be difficult to remove various impurity in oil under normal pressure, the oil samples of preparation cannot accurately simulate various failure gas composition and content, and also long-time constant preserves.Lack the apparatus and method of various fault oil samples energy analogue transformer oil samples acquisition operations in a kind of energy complete matching transformator actual motion at present.
Summary of the invention
The problem to be solved in the present invention is to provide the preparation of a kind of dry run transformer oil sample, harvester and method and the method for the preparation of analogue transformer oil samples, collection.
Technical scheme in order to solve the preparation of the problems referred to above a kind of dry run transformer oil sample provided by the present invention, harvester and method is as follows:
The preparation of a kind of analogue transformer oil samples, harvester, including:
Main fuel tank, inside sets constant voltage discharge equipment, is used for preparing and preserve definite value oil samples, and main fuel tank connects with regulating oil tank, and during oil temperature change, oil volume variable quantity is stored by regulating oil tank and supplements；
Regulating oil tank, is provided with exhaust-valve and inlet valve, it is possible to stores transformer oil, is positioned at main fuel tank upper end, and connects with main fuel tank；
Auxiliary fuel tank, connects with main fuel tank, is provided externally with circulating pump and vacuum pump, and is provided with atomization system, for cleansing and recycling oil, removes in reuse oil residual moisture and various dissolving gaseous impurity to base oil；
Contaminated product pipeline, the auxiliary fuel tank inlet valve that the contaminated product valve connected with main fuel tank including control and oil drain pump, control connect with auxiliary fuel tank；
Decontamination cycle system, auxiliary fuel tank top is provided with nebulizer, and decontamination cycle pipeline includes the circulating pump of auxiliary connection tank bottoms, and described circulating pump is connected with heat exchanger by two-way valve, and described heat exchanger is connected with main fuel tank and auxiliary fuel tank by contaminated product pipeline；
Gas control equipment, including calibrating gas gas cylinder, Balance Air gas cylinder and corresponding Standard Gases sample introduction proportional valve, Balance Air sample introduction proportional valve, also include the hand sampling batcher for changing gas concentration and corresponding hand sampling valve, described calibrating gas gas cylinder, Balance Air gas cylinder are connected with air inlet pipe by four-way connector with hand sampling batcher, and described air inlet pipe connects with main fuel tank；
Recovered oil container, is connected with main fuel tank by reuse oil pipe line, is connected with auxiliary fuel tank by decontamination cycle pipeline；
Sampling apparatus, multiple parallel transformer oil sampling valves, for gathering the analogue transformer oil samples of finished product.
Further, described main fuel tank is Fructus Canarii albi ball-type pressure vessel, described discharge equipment includes to be sufficient filling with the sacculus of main fuel tank inner chamber, controlling the constant voltage equipment of balloon pressure, pressure transducer and two-way air pump, the bottom of described sacculus is connected with main fuel tank sealed bottom, and sacculus spheroid is oil-resistant rubber material.
Further, being provided with high oil level liquid level sensor in described regulating oil tank, main fuel tank bottom is provided with low oil level liquid level sensor.
Further, described auxiliary fuel tank volume is the twice of main fuel tank, and is inverted cone bottom described auxiliary fuel tank.
Further, described air inlet pipe and main fuel tank are provided with assist gas dissolver, described assist gas dissolver includes the tee-joint sleeve connecting air inlet pipe, in-line, outlet line respectively, described air inlet pipe is provided with sifter, described sifter is spongiosis, described sifter micropore size is 10～20 microns, it is possible to will treat that molten gas is refined into microbubble, and quickly and completely be dissolved in transformer oil.
The present invention provides the preparation of analogue transformer oil samples, the method gathered, and specifically comprises the following steps that
(1) system vacuum: the vacuum of the preparation of analogue transformer oil samples, harvester maintains 550Pa～1050Pa, stands 10～20 minutes.
(2) system oiling: after being filtered by purifier by transformer oil, is injected in auxiliary fuel tank.
(3) reuse oil purification: the transformer oil after filtering is heated to 70～80 DEG C, pass through atomising device, transformer oil after heating is atomized into the drop of 0.1mm, under negative pressure state, being dissolved in transformer oil moisture vaporization becomes water vapour, after oil temperature rising, the dissolubility of oil dissolved gas reduces, steam and dissolve gas all loss is out from oil, auxiliary fuel tank is discharged with vacuum pump, transformer oil falls into bottom auxiliary fuel tank, proceeding heating, atomization, deimpurity circulation, this step is performed continuously over 90min～120min.
(4) oil samples preparation is run: set failure gas concentration according to institute's simulated failure, including characteristic gas concentration and Balance Air concentration, calculate the various gas volumes needing to add, transformer oil in auxiliary fuel tank is injected in main fuel tank, make the transformer oil after purification in main fuel tank and contaminated product pipeline, 50 DEG C, 20kPa～50kPa when sealing and circulating, calibrating gas gas cylinder secondary pressure is 60kPa～80kPa, then the gas to be dissolved of accurate quantification is injected in main fuel tank via assist gas dissolver, aerating speed is 0.05L/min, circulates 15min.Setting 10%～90% saturation as required, then quantitative injection balance gas, fully circulates, makes gas oily and to be dissolved be sufficiently mixed uniformly.
(5) oil samples collection: inflated pressurization also constant voltage, to 130kPa, is opened transformer oil sampling valve and can be realized operating transformer oil sample malleation collection.
Further, before step (1), transformer oil is carried out emptying process: operating transformer oil remaining in by regulating oil tank enters in main fuel tank, by two-way air pump to sacculus pressurization also constant voltage to 130kPa, operating transformer oil in main fuel tank is expelled in recycling bin, by circulating pump, the operating transformer oil in auxiliary fuel tank is expelled in recovered oil container.
Further, described Balance Air is nitrogen.
Further, dissolve gas and include transformator CH of generation under normal and malfunction4、C2H6、C2H4、C2H2、CO、CO2、H2In one or more.
Further, described gas to be dissolved includes CH4、C2H6、C2H4、C2H2、CO、CO2、H2In one or more.
The invention have the benefit that the transformer oil can accurately produced under multiple typical transformer malfunction, in oil, various characteristic gas compositions and content are accurately controlled, and can preserve by long-time constant under room temperature；This device provides multiple parallel stations, real transformer oil samples gatherer process can be simulated completely, can conveniently, safely for work such as the skills training of practitioner of specialty, examination, technology tourney such as oil business chemical examination, electrical test/chemical examinations, use cost is low, operation safety, high with execute-in-place compatible degree, efficient and convenient；Transformer oil adopts the mode that reuse purifies, recycles, economic and environment-friendly.
Accompanying drawing illustrates:
Fig. 1 is present configuration schematic diagram；
Fig. 2 is assist gas dissolver structural representation in the present invention.
nullIn figure: 1-vacuum pump，2-nebulizer，3-auxiliary fuel tank，4-draining valve，5-inlet valve，6-circulating pump，7-two-way valve，8-heat exchanger，9-auxiliary fuel tank inlet valve，10-oil drain pump，11-low oil level liquidometer，12-sacculus，13-main fuel tank，14-main fuel tank mixing fuel tap，15-purifier，16-constant voltage equipment，The two-way air pump of 17-，18-recovered oil container，19-transformer oil sampling valve，20-calibrating gas gas cylinder，21-Balance Air gas cylinder，22-Standard Gases sample introduction proportional valve，23-Balance Air sample introduction proportional valve，24-hand sampling batcher，25-hand sampling valve，26-intake valve，27-regulating oil tank，28-height oil level liquidometer，29-exhaust-valve，30-assist gas dissolver，31-inlet valve，32-air inlet pipe，33-outlet line，34-tee-joint sleeve，35-sifter，36-in-line.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
The preparation of a kind of analogue transformer oil samples, harvester, including:
Main fuel tank 13, inside sets constant voltage discharge equipment, is used for preparing and presets and preserve definite value oil samples.Main fuel tank 13 connects with regulating oil tank 27, and during oil temperature change, oil volume variable quantity is stored by regulating oil tank 27 and supplemented；
Regulating oil tank 27, is provided with exhaust-valve 29, inlet valve 31, it is possible to stores transformer oil, is positioned at main fuel tank 13 upper end, and connects with main fuel tank 13；
Auxiliary fuel tank 3, connects with main fuel tank 13, is provided externally with circulating pump 6 and vacuum pump 1, and inside is provided with atomization system, for cleansing and recycling oil, removal residual moisture and various dissolving gaseous impurity to base oil；
The auxiliary fuel tank inlet valve 9 that contaminated product pipeline, the contaminated product valve 14 connected with main fuel tank 13 including control and oil drain pump 10, control connect with auxiliary fuel tank；
Decontamination cycle pipeline, reuse oil enters auxiliary fuel tank 3 by purifier 15, described auxiliary fuel tank 3 top is provided with nebulizer 2, decontamination cycle pipeline includes the circulating pump 6 bottom auxiliary connection fuel tank 3, described circulating pump is connected with heat exchanger 8 by two-way valve 7, and described heat exchanger 8 is connected with main fuel tank 13 and auxiliary fuel tank 3 by contaminated product pipeline；
Gas control equipment, including calibrating gas gas cylinder 20, Balance Air gas cylinder 21 and corresponding Standard Gases sample introduction proportional valve 22, Balance Air sample introduction proportional valve 23, also include the hand sampling batcher 24 for changing gas concentration and corresponding hand sampling valve 25, described calibrating gas gas cylinder 20, balance gas cylinder 21 are connected with air inlet pipe 32 by four-way connector with hand sampling batcher 24, and described air inlet pipe 32 connects with main fuel tank 13；
Recovered oil container 18, is connected with main fuel tank 13 and auxiliary fuel tank 3 by decontamination cycle pipeline；
Transformer oil sampling apparatus 19, multiple parallel transformer oil sampling valves, for gathering the analogue transformer oil samples of finished product.
Further, described main fuel tank 3 is Fructus Canarii albi ball-type, described discharge equipment includes to be sufficient filling with the sacculus 12 of main fuel tank inner chamber, controlling the constant voltage equipment 16 of sacculus 12 pressure, pressure transducer and two-way air pump 17, the bottom of described sacculus 12 is connected with main fuel tank 13 sealed bottom, and sacculus 12 spheroid is oil-resistant rubber material.
Further, being provided with high oil level liquid level sensor 28 in described regulating oil tank 27, main fuel 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 fuel tank 13, and is inverted cone bottom described auxiliary fuel tank 3.
Further, described air inlet pipe 32 is provided with assist gas dissolver 30 with main fuel tank 13, described air inlet pipe 32 is provided with assist gas dissolver 30 with main fuel tank 13, described assist gas dissolver 30 includes the tee-joint sleeve 34 connecting air inlet pipe 32, in-line 36, outlet line 33 respectively, described air inlet pipe 32 is provided with sifter 35, described sifter 35 is spongiosis, described sifter 35 micropore size is 10～20 microns, can, by treating that molten gas is refined into microbubble, quickly and completely be dissolved in transformer oil.
Further, described auxiliary fuel tank 3 is internal is provided with temperature sensor, Precise Control of Oil Temperature.
Further, described purifier 15 includes the metal sintered filter removing greater particle size impurity and the polymer adsorption post removing most of moisture and greasy filth.
During preparation analogue transformer oil, if remaining transformer oil when having last operation in device, first remaining operating transformer oil in regulating oil tank 27 is entered in main fuel tank 13, by two-way air pump 17 to sacculus 12 pressurization also constant voltage to 130kPa, transformer oil is expelled in recovered oil container 18, by circulating pump 6, transformer oil remaining in auxiliary fuel tank 3 is expelled in recovered oil container 18；
After remaining transformer oil emptying, discharging gas in sacculus 12 by two-way air pump 17, close sacculus air intake valve, open vacuum pump 1 by evacuation in device, maintenance vacuum is 550Pa～1050Pa, stands 10～20 minutes.
After transformer oil in recovered oil container 18 is filtered by purifier 15, remove most of moisture and all mechanical admixtures, inject in main fuel tank 13 and regulating oil tank 27, oil-feed is stopped when arriving high oil level liquid level sensor 29, control two-way air pump 17 to sacculus 12 pressurization also constant voltage to 130kPa, all transformer oil are injected in auxiliary fuel tank 3.
Then by the transformer oil deep purifying in auxiliary fuel tank 3, first turn on circulating 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, through the nebulizer 2 that auxiliary fuel tank 3 top is arranged, transformer oil is atomized into the drop of 0.1mm, in oil, the loss from oil of all of dissolving gas and moisture out, discharges auxiliary fuel tank 3 with vacuum pump 1, and this step is performed continuously over 90min～120min.
After recovered oil is carried out double purification process, detecting Oil Dissolved Gases Concentration, investigate the purification degasifying effect of oil, result is table 1 such as, and clean-up effect is good.
The purification degasifying effect test of table 1 recovered oil
After gas to be dissolved and moisture are completely exhausted out from transformer oil, transformer oil in auxiliary fuel tank 3 is injected in main fuel tank 13 by auxiliary fuel tank inlet valve 9, close auxiliary fuel tank inlet valve 9, by oil drain pump 10 and mixing fuel tap 14 50 DEG C, 20kPa～50kPa when in contaminated product pipeline and main fuel tank 13 sealing and circulating, then just the gas to be dissolved of accurate quantification injects in main fuel tank by air inlet pipe 32 and assist gas dissolver 30, aerating speed is 0.05L/min, and described gas to be dissolved includes CH4、C2H6、C2H4、C2H2、CO、CO2、H2In one or more, regulate the admission pressure after external calibrating gas bottle secondary pressure to 60～80kPa, set Balance Air 50% saturation, circulation, make gas oily and to be dissolved be sufficiently mixed.By sacculus 12 inflating pressure constant voltage to 130kPa, open transformer oil sampling valve 19 and can realize operating transformer oil sample malleation collection.Gather the oil sample prepared, detect the concentration value of Gases Dissolved in Transformer Oil as standard value with the laboratory Agilent chromatograph already by measurement verification.Contrast pre-set value, investigates both goodnesses of fit.Result of the test is table 2 such as, and compound concentration is good with the goodness of fit of actual concentrations.
The goodness of fit of table 2 compound concentration and actual concentrations is tested
By sacculus 12 inflated with nitrogen constant voltage volumetric expansion, the definite value oil sample malleation prepared being discharged, the volume discharging oil is filled by airbag inflation, therefore during whole oil recovery, oil sample is in strict seal state, for single liquid phase, producing without cavity, oil dissolved gas value is stable.
Detect in this device transformer oil storage 0h(original amount), 24h, 96h, each dissolve gas group component value, investigate each dissolving gas component stability.Result of the test is table 3 such as, have good stability.
The stability test of oil samples in table 3 main fuel tank
After this device has been researched and developed, teaching for power industry electrical test/chemical examination post staffs training, examination and electric power college students, run 15 months, complete vocational training for the workers and staff 4036 people/time, amounted to for 13680 class hours, complete student instruction real training 720 class hour, transformer oil full dose reuse, zero-emission.Run consumptive material (electricity, gas) cost about 1200 yuan, average 0.083 yuan/class hour.Ginseng training employee's repercussion is good, and training and teaching effect is notable, and economic benefit, social benefit are notable.
Claims (10)
1. dry run transformer oil sample preparation, harvester, including:
Main fuel tank (13), inside sets constant voltage discharge equipment, is used for preparing and preserve definite value oil samples；
Regulating oil tank (27), is provided with exhaust-valve (29), inlet valve (31), it is possible to stores transformer oil, is positioned at main fuel tank (13) upper end, and connects with main fuel tank (13)；
Auxiliary fuel tank (3), connects with main fuel tank (13), and described auxiliary fuel tank (3) is internal is provided with temperature sensor, it is provided externally with circulating pump (6) and vacuum pump (1), and it is provided with atomization system, for cleansing and recycling oil, removal residual moisture and various dissolving gaseous impurity to base oil；
The auxiliary fuel tank inlet valve (9) that contaminated product pipeline, the contaminated product valve (14) connected with main fuel tank (13) including control and oil drain pump (10), control connect with auxiliary fuel tank (3)；
Decontamination cycle pipeline, described decontamination cycle pipeline is sequentially provided with draining valve (4), two-way valve (7), circulating pump (6), inlet valve (5) and purifier (15), heat exchanger (8), auxiliary connection fuel tank (3) between described circulating pump (6), inlet valve (5) is connected between described draining valve (4) and two-way valve (7)；
Gas control equipment, including calibrating gas gas cylinder (20), Balance Air gas cylinder (21) and corresponding gas sample introduction proportional valve (22), Balance Air sample introduction proportional valve (23), also include the hand sampling batcher (24) for changing gas concentration and corresponding hand sampling valve (25), described calibrating gas gas cylinder (20), Balance Air gas cylinder (21) are connected with air inlet pipe (32) by four-way connector with hand sampling batcher (24), and described air inlet pipe (32) connects with main fuel tank (13)；
Recovered oil container (18), is connected with main fuel tank (13) and auxiliary fuel tank (3) by decontamination cycle pipeline；
Atomization system, including being positioned on the nebulizer (2) at auxiliary fuel tank (3) top and decontamination cycle pipeline and the circulating pump (6) of auxiliary connection tank bottoms, described circulating pump (6) is connected with heat exchanger (8) by two-way valve (7), and described heat exchanger (8) is connected with main fuel tank (13) and auxiliary fuel tank (3) by contaminated product pipeline；
Sampling apparatus (19), multiple parallel transformer oil sampling valves, for gathering the analogue transformer oil samples of finished product.
2. dry run transformer oil sample preparation according to claim 1, harvester, it is characterized in that, described main fuel tank (3) is Fructus Canarii albi ball-type pressure vessel, described discharge equipment includes to be sufficient filling with the sacculus (12) of main fuel tank inner chamber, controlling the constant voltage equipment (16) of sacculus (12) pressure, pressure transducer and two-way air pump (17), the bottom of described sacculus (12) is airtight with main fuel tank (13) bottom to be connected, and sacculus (12) spheroid is oil-resistant rubber material.
3. dry run transformer oil sample preparation according to claim 1, harvester, it is characterised in that described purifier (15) includes the metal sintered filter removing greater particle size impurity and the polymer adsorption post removing most of moisture and greasy filth.
4. dry run transformer oil sample preparation according to claim 1, harvester, it is characterised in that described auxiliary fuel tank (3) volume is the twice of main fuel tank (13), and be inverted cone bottom described auxiliary fuel tank (3).
5. dry run transformer oil sample preparation according to claim 1, harvester, it is characterized in that, being provided with high oil level liquid level sensor (29) in described regulating oil tank (27), main fuel tank (13) bottom is provided with low oil level liquid level sensor (11), can accurately control oil inlet quantity.
6. a kind of dry run transformer oil sample preparation according to claim 1, harvester, it is characterized in that, described air inlet pipe (32) and main fuel tank (13) are provided with assist gas dissolver (30), described assist gas dissolver (30) includes the tee-joint sleeve (34) connecting air inlet pipeline (32), in-line (36), outlet line (33) respectively, described air inlet pipeline (32) is provided with sifter (35), described sifter (35) is spongiosis, and described sifter (35) micropore size is 10～20 microns.
7., by an equipment for the preparation of analogue transformer oil samples, collection described in claim 1, preparation, the method gathering analogue transformer oil samples, specifically comprise the following steps that
(1) system vacuum: the vacuum of the preparation of dry run transformer oil sample, harvester and method is maintained 550Pa～1050Pa, stands 10～20 minutes；
(2) system oiling: after being filtered by purifier by transformer oil, is injected in auxiliary fuel tank；
(3) reuse oil purification: the transformer oil after filtering is heated to 70～80 DEG C, pass through atomising device, transformer oil after heating is atomized into the drop of 0.1mm, loss is out from oil to make dissolving gas and moisture, auxiliary fuel tank is discharged with vacuum pump, transformer oil falls into bottom auxiliary fuel tank, proceeds to heat, be atomized, go out the circulation of impurity, and this step is performed continuously over 90min～120min；
(4) oil samples preparation is run: injected by transformer oil in auxiliary fuel tank in main fuel tank, by transformer oil main fuel tank and contaminated product pipeline 50 DEG C, 20kPa～50kPa when sealing and circulating, then gas to be dissolved injects in main fuel tank, aerating speed is 0.05L/min, calibrating gas gas cylinder secondary pressure is 60～80kPa, then quantitative injection balance gas, sets 10～90% saturations as required, makes gas oily and to be dissolved be sufficiently mixed uniformly；
(5) oil samples collection: inflated pressurization also constant voltage, to 130kPa, is opened transformer oil sampling valve and can be realized operating transformer oil sample malleation collection.
8. the method for the preparation of analogue transformer oil samples, collection according to claim 7, it is characterized in that, before step (1), transformer oil is carried out emptying process: operating transformer oil remaining in by regulating oil tank enters in main fuel tank, by two-way air pump to sacculus pressurization also constant voltage to 130kPa, operating transformer oil is expelled in recycling bin, by circulating pump, the operating transformer oil in auxiliary fuel tank is expelled in recovered oil container.
9. the method for the preparation of analogue transformer oil samples, collection according to claim 7, it is characterised in that described Balance Air is nitrogen.
10. the method for the preparation of analogue transformer oil samples, collection according to claim 7, it is characterised in that dissolve gas and include transformator CH of generation under normal and malfunction4、C2H6、C2H4、C2H2、CO、CO2、H2In one or more；
Described gas to be dissolved includes CH4、C2H6、C2H4、C2H2、CO、CO2、H2In one or more.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106442813A (en) * | 2016-11-03 | 2017-02-22 | 广东电网有限责任公司电力科学研究院 | Omniseal headspace sampling technology used for measuring dissolved contents in transformer oil |
| CN109254233A (en) * | 2018-10-24 | 2019-01-22 | 国网山东省电力公司电力科学研究院 | A kind of transformer electric fault gas simulator |
| CN111569682A (en) * | 2020-04-02 | 2020-08-25 | 南方电网科学研究院有限责任公司 | Transformer insulating oil gas dissolving system and method |
| CN111879563A (en) * | 2020-07-30 | 2020-11-03 | 国家电网有限公司 | Extra-high voltage transformer substation transformer and high-resistance automatic oil taking robot |
| CN112015165A (en) * | 2020-08-27 | 2020-12-01 | 余姚市工易仪表有限公司 | Temperature controller self-checking method, system and storage medium thereof |
| CN110108962B (en) * | 2019-05-20 | 2021-01-05 | 保定天威保变电气股份有限公司 | Transformer gas collection test device and test method |
| CN112729457A (en) * | 2020-12-30 | 2021-04-30 | 苏州博思得电气有限公司 | Method and system for determining gas quantity of air bag of oil tank and oil filling method |
| 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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| CN106442813A (en) * | 2016-11-03 | 2017-02-22 | 广东电网有限责任公司电力科学研究院 | Omniseal headspace sampling technology used for measuring dissolved contents in transformer oil |
| CN106442813B (en) * | 2016-11-03 | 2019-03-01 | 广东电网有限责任公司电力科学研究院 | A kind of headspace sampling method |
| CN109254233A (en) * | 2018-10-24 | 2019-01-22 | 国网山东省电力公司电力科学研究院 | A kind of transformer electric fault gas simulator |
| CN110108962B (en) * | 2019-05-20 | 2021-01-05 | 保定天威保变电气股份有限公司 | Transformer gas collection test device and test method |
| CN111569682A (en) * | 2020-04-02 | 2020-08-25 | 南方电网科学研究院有限责任公司 | Transformer insulating oil gas dissolving system and method |
| CN111879563A (en) * | 2020-07-30 | 2020-11-03 | 国家电网有限公司 | Extra-high voltage transformer substation transformer and high-resistance automatic oil taking robot |
| CN112015165A (en) * | 2020-08-27 | 2020-12-01 | 余姚市工易仪表有限公司 | Temperature controller self-checking method, system and storage medium thereof |
| CN112729457A (en) * | 2020-12-30 | 2021-04-30 | 苏州博思得电气有限公司 | Method and system for determining gas quantity of air bag of oil tank and oil filling method |
| CN112729457B (en) * | 2020-12-30 | 2024-01-05 | 苏州博思得电气有限公司 | Method, system and oil filling method for determining gas quantity of oil tank airbag |
| 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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