CN105608969B - Prepared by analogue transformer gas relay device and its sample gas, acquisition method - Google Patents
Prepared by analogue transformer gas relay device and its sample gas, acquisition method Download PDFInfo
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- CN105608969B CN105608969B CN201610099635.0A CN201610099635A CN105608969B CN 105608969 B CN105608969 B CN 105608969B CN 201610099635 A CN201610099635 A CN 201610099635A CN 105608969 B CN105608969 B CN 105608969B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000002828 fuel tank Substances 0.000 claims abstract description 115
- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims description 248
- 239000003921 oil Substances 0.000 claims description 155
- 239000007788 liquid Substances 0.000 claims description 11
- 238000005202 decontamination Methods 0.000 claims description 9
- 230000003588 decontaminative effect Effects 0.000 claims description 9
- 238000004458 analytical method Methods 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 8
- 238000004090 dissolution Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000002199 base oil Substances 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 125000001967 indiganyl group Chemical group [H][In]([H])[*] 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 240000007817 Olea europaea Species 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 239000000295 fuel oil Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 238000005286 illumination Methods 0.000 claims description 2
- 239000003595 mist Substances 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000011002 quantification Methods 0.000 claims description 2
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- 238000004064 recycling Methods 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
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- 238000009834 vaporization Methods 0.000 claims description 2
- 230000008016 vaporization Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000012795 verification Methods 0.000 abstract 1
- 238000012549 training Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 238000005070 sampling Methods 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
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- 238000012423 maintenance Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
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- 239000000470 constituent Substances 0.000 description 1
- -1 control by amount Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/182—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for components
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/188—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for motors; for generators; for power supplies; for power distribution
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- Sampling And Sample Adjustment (AREA)
Abstract
Prepared by analogue transformer gas relay device and its sample gas, acquisition method, by cooperating for main fuel tank, regulating oil tank, auxiliary fuel tank and Transformer Gas Relay device, the transformer oil standard sample of jumbo, arbitrary characteristics gas concentration can accurately be produced, the verification of the convenient oily on-line chromatograph supporting for power transformer, in oil various features gas componant and content accurately controlled, and can be preserved with long-time constant under normal temperature.The transformer oil for making can continuously, constant voltage output, use cost is low, safe operation, efficient and convenient.Transformer oil is by the way of reuse is purified, recycled, economic and environment-friendly.
Description
Technical field
The present invention relates to a kind of analogue transformer gas relay device, the invention further relates to prepared using described device many
The method for planting gaseous sample in the Transformer Gas Relay under transformer fault.
Background technology
In operation, different malfunctions can produce different characteristic gas to the oil-filled electric equipments such as transformer（Mainly
Including CH4、C2H6、C2H4、C2H2、CO、CO2、H2Deng）.Faulty factor of created gase be all closely related with the release of the energy of fault.
For energy is relatively low, gas discharges slow fault（As low temperature focus or shelf depreciation）, the most of dissolving of the gas that generated
In oil, poised state is generally speaking substantially at；Larger for energy（As iron core is overheated）Failure gas are caused to produce very fast,
Bubble is likely to form when gas production rate is more than rate of dissolution.During bubble rises, a part of gas is dissolved in oil
（And swap with the gas being dissolved in oil）, change component and the content of generated gas.Undissolved gas and
In oil, replaced gas out, eventually enters into relay and accumulates to form free gas（Device in Gas）；For there is high-energy
Arc resistance discharge fault, is quickly generated a large amount of gases, and forms bubble and rise rapidly and be gathered in relay, causes relay
Report to the police or protection act.Therefore when gas relay sends signal, except the free gas that should be taken immediately in gas relay（Watt
This gas）Carry out outside chromatography, should also take transformer oil sample simultaneously carries out dissolved gas analysis, and compare oil dissolved gas and
Free gas in relay（Device in Gas）Concentration, judge free gas using equilibrium criterion（Device in Gas）With dissolved gas
Whether poised state, and then the classification of failure judgement are in.
Comparative approach：First have to a free gas（Device in Gas）In each component concentration value using each component oersted watt
That moral coefficient kiCalculate the theoretical value of oil dissolved gas under equilibrium condition, then with the dissolved gas obtained from crude oil sample analysis
The concentration value of component is compared.
Computational methods：
Coi=ki×Cgi
In formula：CoiThe theoretical value of dissolved constituent i concentration, uL/L in oil；
CgiIn relay in free gas component i concentration value, uL/L；
kiThe ostwald coefficient of component i.
Determination methods：
（1）Non-faulting state：The measured value approximately equal of free gas theoretical value and oil dissolved gas, gas in relay
In body sample, each concentration of component is all very low, and equipment normal operation is described, relay gas is non-faulting gas.
（2）Hidden fault：In relay, the measured value approximately equal of free gas theoretical value and oil dissolved gas, molten
Solution gas concentration is slightly above theoretical value and then illustrates that equipment presence generation gas is more slow.
（3）Malfunction:Significantly more than oil dissolved gas concentration, explanation sets free gas concentration in gas relay
Standby internal presence produces gas fault faster, and release gas is more, it is necessary to process as early as possible.
Therefore, the correct in time gas componant for gathering and accurately analyzing in gas relay is to analyze, judge transformer event
Hinder one of maximally effective measure.Operation maintenance personnel must possess the operational capacity of failure gas in correct collection gas relay.
The gas relay of transformer is installed on below conservator, and transformer top, sample collection difficulty are larger.Transformer is just
Transformer oil is filled with relay when often running, without gas.Therefore, physical device does not have the condition of training on operation, no
The training on operation demand of technical staff can be met, cannot more simulate various malfunctions.
Content of the invention
The problem to be solved in the present invention is to provide a kind of analogue transformer gas relay device, and the device can simulate change
Depressor typical fault, prepares the transformer oil sample and failure gas for presetting concentration of dissolved gas, and provides sample collection method.
Prepared by analogue transformer gas relay device sample gas, acquisition method, easily can prepare under various malfunctions
Failure gas sample in transformer oil and gas relay, is fitted actual motion transformer sampling operation completely, and can
Repeated acquisition, it is adaptable to the training of practitioner and examination.
In order to solve the above problems, the present invention provides a kind of analogue transformer gas relay device, and using described
The technical scheme that device prepares the method for gaseous sample in the Transformer Gas Relay under multiple transformer states is as follows：
One kind is used for analogue transformer gas relay sample collecting apparatus, including：
Main fuel tank, inside set constant voltage discharge equipment, and for preparing and preserving transformer oil, main fuel tank is connected with regulating oil tank
Logical, when oil temperature changes, oil volume variable quantity is stored by regulating oil tank and is supplemented；
Regulating oil tank, is provided with exhaust-valve and inlet valve, can store transformer oil, positioned at main fuel tank upper end, and with master
Fuel tank is connected；
Auxiliary fuel tank, is connected with main fuel tank, and outside is provided with circulating pump and vavuum pump, and is provided with atomization system, for purifying
Reuse oil, in removing reuse oil, residual moisture and various dissolved gas impurity are to base oil；
Contaminated product pipeline, including the pair for controlling the contaminated product valve connected with main fuel tank and oil drain pump, control to connect with auxiliary fuel tank
Fuel tank inlet valve；
Decontamination cycle system, auxiliary fuel tank top are provided with atomizer, and decontamination cycle pipeline includes following for auxiliary connection tank bottoms
Ring pump, the circulating pump are connected with heat exchanger by two-way valve, and the heat exchanger is by contaminated product pipeline and main fuel tank and auxiliary fuel tank
Connection；
Gas control equipment, including preparing gas cylinders group, balance gas bottle and the corresponding simulated failure of simulated failure gas
Gas sampling proportional valve, Balance Air sample introduction proportional valve, also include the air distributing device for preparing failure gas, the simulated failure
Gas cylinders group, balance gas bottle are connected with air inlet pipe by three-way connector with air distributing device, the air inlet pipe and main fuel tank
In-line is connected；
Oil vessel is reclaimed, is connected with main fuel tank by reuse oil pipe line, is connected with auxiliary fuel tank by decontamination cycle pipeline；
Transformer Gas Relay device, according to the saturation of balanced gas in the gas production of institute's simulated failure and transformer oil
The failure gas quantitation for mixing is added in transformer oil by amount, gas control equipment through gas auxiliary dissolver, and control is each
Plant gas addition and speed is added, the transformer fault of different gas production and gas production rate can be simulated, excessive gas is certainly
Escape in transformer oil, enter gas relay and form free gas（Device in Gas）, by form it is observed that oil and fault gas
The interface of body.
Further, the main fuel tank is olive ball-type pressure vessel, and the discharge equipment includes to be sufficient filling with main oil
The sacculus of box cavity, the constant-voltage equipment of control balloon pressure, pressure sensor and two-way air pump, the bottom of the sacculus and main oil
Bottom portion is tightly connected, and sacculus spheroid is oil-resistant rubber material.
Further, high oil level liquid level sensor is provided with, main fuel tank bottom is provided with low oil level liquid level in the regulating oil tank
Sensor.
Further, the auxiliary fuel tank volume is the twice of main fuel tank, and the auxiliary fuel tank bottom is back taper.
Further, the air inlet pipe is provided with auxiliary gas dissolution apparatus, the auxiliary gas with main fuel tank in-line
Dissolver includes the tee-joint sleeve for connecting air inlet pipeline, in-line, outlet line respectively, and the air inlet pipeline is provided with sieve
Divide device, the sifter is spongelike structure, the sifter micropore size is 10～20 microns, can will treat that molten gas is refined
Become microbubble, be quickly and completely dissolved in transformer oil.
The present invention provides gaseous sample in analogue transformer gas relay device and prepares and acquisition method, and concrete steps are such as
Under：
（1）System vacuum：Loop valve is opened, vavuum pump is opened, by the vacuum of analogue transformer gas relay device
Degree maintains 700Pa～1000Pa, stands 10～20 minutes.
（2）System oiling：After transformer oil is filtered by purifier, in injection auxiliary fuel tank.
（3）Reuse oil purification：Transformer oil after filtration is heated to 70～80 DEG C, by atomising device, after heating
Transformer oil be atomized into the drop of 0.1mm, under negative pressure state, be dissolved in moisture vaporization in transformer oil and become water vapour, miscellaneous
The solubility of matter gas reduces, and loss all from oil out, discharges auxiliary fuel tank with vavuum pump, and transformer oil falls into auxiliary fuel tank bottom
Portion, proceeds to heat, is atomized, deimpurity circulation, and this step persistently carries out 90 min～120min.
（4）Gassiness quantity reset：By in transformer oil injection main fuel tank in auxiliary fuel tank, according to fault is set, transformer is set
The air content of oil is calculated the volume for adding Balance Air, by proportioning device accurate quantitative analysis, then accurately will determine 80%～110%
Via in auxiliary gas dissolution apparatus injection oil, aerating speed is 0.2 L/min～1.0L/min to the balanced gas of amount, this process
Circulation can be escaped up to liquid gas balance more than the gas of transformer oil solvability, enter transformer gas by main fuel tank top
Assemble in relay, form free gas.
（5）Failure gas are prepared：According to fault is arranged, calculate characteristic gas concentration, volume and speed is added, distribution is set
Instrument trim analysis, prepare the mixed fault gas concentration under set fault, are quantitatively adding, are circulated with proportioning device, aerating speed
Spend for 0.2 L/min～1.0L/min, can escape more than the gas of transformer oil solvability, transformation is entered by main fuel tank top
Assemble in device gas relay, free gas is formed, gathered by Transformer Gas Relay gaseous sample air hatch.Further
, in step（1）Before analogue transformer gas relay device fuel tank is emptied：By remaining operation transformation in regulating oil tank
Device oil is entered in main fuel tank, by two-way air pump is to sacculus pressurization and constant voltage is to 130kPa, by remaining transformer in main fuel tank
Oil is expelled in recovery oil vessel, the operating transformer oil in auxiliary fuel tank is expelled in recovery oil vessel by circulating pump.
Further, the Balance Air is nitrogen.
Further, dissolved gas include characteristic gas CH4、C2H6、 C2H4、 C2H2、CO、CO2、H2In one kind or several
Kind.
Further, the gas to be dissolved includes CH4、C2H6、 C2H4、 C2H2、CO、CO2、H2In one or more.
Further, Transformer Gas Relay is stainless steel structure, and four sides arranges glass vision panel and built-in LED illumination light
Source, is easy to observe the situations such as gas flow, and connects multiple Transformer Gas Relay gaseous sample air hatch being parallel to each other, permit
Many people carry out oil, gas sample collection simultaneously.
Beneficial effects of the present invention are：Species, addition can be added, add the controlled quentity controlled variables such as speed, accurately by gas
Transformer oil and gas relay under multiple typical faults such as the hyperthermia and superheating of analogue transformer operation, spark discharge, arc discharge
Gas composition in gas composition, and the transformer oil of non-faulting state and gas relay in device.Various features gas componant,
Content and gas production accurately controlled.The Transformer Gas Relay free gas for making（Device in Gas）Continuously can export, can
It is advantageously used in Transformer Gas Relay failure gas acquisition operations training and assessment.Use cost is low, safe operation, fast
Convenient.By the way of reuse is purified, recycled, the transformer oil of reuse can be purified to and be substantially free of impurity transformer oil
Base oil, economic and environment-friendly.
Description of the drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is to aid in gas dissolution apparatus structural representation in the present invention.
In figure：1- vavuum pump, 2- atomizer, 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 liquid level gauge, 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- reclaim oil vessel, and 19-1-transformer gas continue
Collector gas sample air hatch, 19-2-transformer oil sample acquisition port, 20- balance gas bottle, 21- Balance Air quantitative sample injection
Device, 22- Balance Air sample introduction proportional valve, 23- gas inlet valve, 24- fault gas intake valve, 25- fault gas batcher, 26- distribution
Instrument, 27- fault gas group, the high oil level liquid level gauge of 28-, 29- exhaust-valve, 30- regulating oil tank, 31- air inlet pipe, 32- inlet valve,
33- gas aids in dissolver, 34- Transformer Gas Relay, 35- sifter, 36- in-line, 37- outlet line, 38-
Tee-joint sleeve.
Specific embodiment
The present invention is further described with specifically embodiment below in conjunction with the accompanying drawings.
One kind is used for transformer oil online gc calibration equipment, including：
Regulating oil tank 30, is provided with exhaust-valve 29, and inlet valve 32 can store transformer oil, positioned at 13 upper end of main fuel tank, and
And connect with main fuel tank 13；
Main fuel tank 13, inside set constant voltage discharge equipment, for preparing and preserving transformer oil sample.Main fuel tank 13 and regulation
Fuel tank 30 is connected, and when oil temperature changes, oil volume variable quantity is stored and supplemented by regulating oil tank 30；
Auxiliary fuel tank 3, is connected with main fuel tank 13, and outside is provided with circulating pump 6 and vavuum pump 1, and inside is provided with atomization system, is used for
Cleansing and recycling oil, in removing reuse oil, residual moisture and various dissolved gas impurity are to base oil；
Contaminated product pipeline, including controlling the contaminated product valve 14 connected with main fuel tank 13 and oil drain pump 10, control to connect with auxiliary fuel tank
Logical auxiliary fuel tank inlet valve 9；
Decontamination cycle pipeline, reuse oil enter auxiliary fuel tank 3 by purifier 15, and 3 top of the auxiliary fuel tank is provided with atomization
Device 2, decontamination cycle pipeline include the circulating pump 6 for connecting 3 bottom of auxiliary fuel tank, and the circulating pump is connected with heat exchanger 8 by two-way valve 7
Connect, the heat exchanger 8 is connected with main fuel tank 13 and auxiliary fuel tank 3 by contaminated product pipeline；
Gas control equipment, including preparing gas cylinders group 27, balance gas bottle 20 and the corresponding simulation of simulated failure gas
Failure gas sample introduction proportional valve 25, Balance Air sample introduction proportional valve 21, also include the air distributing device 26 for preparing failure gas, institute
State simulated failure gas cylinders group 27, balance gas bottle 20 to connect with air inlet pipe 31 by three-way connector with air distributing device 26,
The air inlet pipe 31 is connected with 13 in-line of main fuel tank；
Oil vessel 18 is reclaimed, is connected with main fuel tank 13 and auxiliary fuel tank 3 by decontamination cycle pipeline；
Transformer Gas Relay device, according to the saturation of balanced gas in the gas production of institute's simulated failure and transformer oil
The failure gas quantitation for mixing is aided in dissolver 33 to add in transformer oil through gas, control by amount, gas control equipment
Gas addition and addition speed, can simulate the transformer fault of different gas production and gas production rate, and excessive gas is from change
Escape in depressor oil, enter gas relay 34 and failure gas are formed, by form it is observed that the oily decomposition with failure gas
Face.34 top of gas relay sets multiple parallel gas samplers, it is possible to achieve many people/groups are while gather.
Further, the main fuel tank 3 is ball-type pressure vessel, and the discharge equipment includes to be sufficient filling with main fuel tank 3
The sacculus 12 of inner chamber, the constant-voltage equipment 16, pressure sensor of control 12 pressure of sacculus and two-way air pump 17, the bottom of the sacculus 12
Portion and 13 bottom airtight connection of main fuel tank, 12 spheroid of sacculus are oil-resistant rubber material.
Further, high oil level liquid level sensor 29 is provided with the regulating oil tank 30,13 bottom of main fuel tank is provided with low oil
Position liquid level sensor 11, can precise control oil inlet quantity.
Further, 3 volume of the auxiliary fuel tank is 2 times of main fuel tank 13, and 3 bottom of the auxiliary fuel tank is inverted cone
Shape.
Further, gas auxiliary dissolver 33 is provided between the air inlet pipe 31 and 13 in-line of main fuel tank, described
Gas auxiliary dissolver 33 includes to connect respectively the tee-joint sleeve 38 of air inlet pipe 31, in-line 36, outlet line 37, described
Air inlet pipeline 31 is provided with sifter 35, the sifter 35 be spongelike structure, 35 micropore size of the sifter be 10～
20 microns, can will treat that molten gas is refined into microbubble, is rapidly and evenly dissolved in transformer oil.
Further, temperature sensor is provided with inside the auxiliary fuel tank 3, being capable of Precise Control of Oil Temperature.
Further, the purifier 15 includes to remove the metal sintered filter of greater particle size impurity and removes big portion
Divide the polymer adsorption post of moisture and greasy filth.
When preparation transformer oil feature dissolved gas are really worth sample, if there is the transformer oil of remnants in device, first will
In regulating oil tank 30, remaining transformer oil is entered in main fuel tank 13, then by two-way air pump 17 to the pressurization of sacculus 12 constant voltage
To 130kPa, transformer oil is expelled in recovery oil vessel 18, by circulating pump 6 by remaining transformer oil in auxiliary fuel tank 3
It is expelled in recovery oil vessel 18；
After remaining transformer oil emptying, gas in sacculus 12 is discharged by two-way air pump 17, sacculus air intake valve is closed,
Open vavuum pump 1 to vacuumize in device, maintenance vacuum is 700Pa～1000Pa, stands 10～20min.
After the transformer oil reclaimed in oil vessel 18 is filtered by purifier 15, remove most of moisture and institute is organic
Tool impurity, in injection main fuel tank 13 and regulating oil tank 30, stops oil-feed when reaching high oil level liquid level sensor 29, controls two-way gas
Pump 17 is to the pressurization of sacculus 12 and constant voltage is to 130kPa, and all transformer oil are injected in auxiliary fuel tank 3.
Then the transformer oil deep purifying in auxiliary fuel tank 3 is carried out, first turns on circulating pump 6, vavuum pump 1,7 and of two-way pump
Transformer oil is heated to 70～80 DEG C in constant temperature heating device 8 by constant temperature heating device 8, through the mist that 3 top of auxiliary fuel tank is arranged
Change device 2, transformer oil be atomized into the drop of 0.1mm, in oil all of dissolved gas and moisture from oil loss out, with true
Auxiliary fuel tank 3 discharged by empty pump 1, and this step persistently carries out 90 min～120min.
After the oil recovery higher to impurity content carries out deep purifying process, Oil Dissolved Gases Concentration is detected, investigate oil
Purification degasifying effect, as a result as table 1, clean-up effect is good.
The purification degasifying effect test of 1 oil recovery of table
Default difference running state of transformer, arranges distribution instrument parameter, and detection Gases Dissolved in Transformer Oil composition is gentle
The free gas composition formed in body relay, is contrasted with preset state, both goodnesses of fit of examination.
The transformer oil processed through deep purifying in auxiliary fuel tank 3 is injected main fuel tank 13 by 3 inlet valve 9 of auxiliary fuel tank
In, auxiliary fuel tank inlet valve 9 is closed, by oil drain pump 10 and mixing fuel tap 14, controls 50 DEG C of constant temperature, in contaminated product pipeline and main fuel tank
Sealing and circulating in 13, sets different balance gas saturations, then that the gas to be dissolved of accurate quantification is gentle by air inlet pipe 31
Body auxiliary dissolver 33 is persistently injected in oil with different aerating speed, and circulation makes oily to be sufficiently mixed with gas to be dissolved.Exceed
The gas of transformer oil solubility can be escaped, and be gathered in main fuel tank top, subsequently into gas relay, form free gas
（Device in Gas）.The solubility factor of different characteristic gas is different, forms dynamic equilibrium between the gentle phase fault gas of liquid phase transformer oil.
By 12 inflating pressure of sacculus and constant voltage is to 130kPa, sampling valve 19-1 collection gas relay gaseous sample is opened, while opening
Sampling valve 19-2 gathers transformer oil sample, can carry out transformer oil sample and failure gas sampling operation instruction according to actual demand
The trainings such as white silk, prejudgementing criteria analysis, assessment mode.The volume for discharging gas is supplemented by the oil in main fuel tank 13.
The different conditions of analogue transformer operation, detection device in Gas composition and Gases Dissolved in Transformer Oil composition, calculate
Oil dissolved gas theoretical value, is balanced prejudgementing criteria analysis.The goodness of fit under the various running state of transformers of examination simulation, test
As a result as 2～table of table 4, result of the test shows that the goodness of fit is good.
The test of the non-faulting state goodness of fit simulated by table 2
（Control condition：Balanced gas saturation degree 110%, aerating speed 0.5L/min）
Equilibrium criterion is analyzed：The theoretical value that relay gas sample is calculated is less than body crude oil sample analysis result, transformer auxiliary system
System there may be poorly sealed defect, belong to non-faulting reason gas air inlet.
The test of the Hidden fault state goodness of fit simulated by table 3
（Control condition：Balanced gas saturation degree 90%, aerating speed 0.2L/min）
Equilibrium criterion is analyzed：The theoretical value that the free gas sample of gas relay is calculated is close with body crude oil sample analysis result, becomes
Depressor there may be the Hidden fault in slow term.
The test of the severe fault condition goodness of fit simulated by table 4
（Control condition：Balanced gas saturation degree 95%, aerating speed 1.0L/min）
Equilibrium criterion is analyzed：The theoretical value that free gas sample is calculated is far longer than body crude oil sample analysis numerical value, illustrates that gas continues
The reason for electrical equipment produces gas is the failure gas that inside transformer has that sudden serious fault is produced.
Detect transformer oil storage 0h in this device（Original amount）, 24h, 96h, each dissolved gas component value, investigate
Each dissolved gas component stability.Result of the test such as table 5, has good stability.
The stability test of oil samples in 5 main fuel tank of table
After the completion of the research and development of this device, for power industry electrical test/chemical examination post staffs training, examination and electric power institute
The teaching of school student, has been run 15 months, complete 4036 people of vocational training for the workers and staff/time, 13680 class hour altogether, complete student's religion
Learn 720 class hour of real training, transformer oil full dose reuse, zero-emission.Operation consumptive material（Electricity, gas）About 536 yuan of cost, average 0.037
Unit/class hour.Ginseng training employee repercussion is good, and training and teaching effect is significant, economic benefit, social benefit are notable.
Claims (5)
1. analogue transformer gas relay device, including：
Main fuel tank, inside set constant voltage discharge equipment, for preparing and preserving transformer oil；
Regulating oil tank, is provided with exhaust-valve and inlet valve, can store transformer oil, positioned at main fuel tank upper end, and and main fuel tank
Connection；
Auxiliary fuel tank, is connected with main fuel tank, and outside is provided with circulating pump and vavuum pump, and is provided with atomizer, for cleansing and recycling oil,
In removing reuse oil, residual moisture and various dissolved gas impurity are to base oil；
Contaminated product pipeline, including the auxiliary fuel tank for controlling the contaminated product valve connected with main fuel tank and oil drain pump, control to connect with auxiliary fuel tank
Inlet valve；
Decontamination cycle pipeline, auxiliary fuel tank top are provided with atomizer, and decontamination cycle pipeline includes the circulating pump of auxiliary connection tank bottoms,
The circulating pump is connected with heat exchanger by two-way valve, and the heat exchanger is connected with main fuel tank and auxiliary fuel tank by contaminated product pipeline；
Gas control equipment, including preparing gas cylinders group, balance gas bottle and the corresponding simulated failure gas of simulated failure gas
Sample introduction proportional valve, Balance Air sample introduction proportional valve, also include the air distributing device for preparing failure gas, the simulated failure gas
Gas cylinders group, balance gas bottle are connected with air inlet pipe by three-way connector with air distributing device, the air inlet pipe and main fuel tank oil-feed
Pipeline connection, simulated failure gas cylinders group is built with the gas to be dissolved merged with transformer oil；
Oil vessel is reclaimed, is connected with main fuel tank and auxiliary fuel tank by decontamination cycle pipeline；
Transformer Gas Relay device, including Transformer Gas Relay and depressor gas relay gaseous sample air hatch,
The Transformer Gas Relay is connected with regulating oil tank respectively at main fuel tank；The main fuel tank is olive ball-type pressure vessel,
The discharge equipment includes the sacculus that can be sufficient filling with main fuel tank inner chamber, the constant-voltage equipment for controlling balloon pressure, pressure sensor
With two-way air pump, the bottom of the sacculus and main fuel tank bottom airtight connection, sacculus spheroid is oil-resistant rubber material；The regulation
High oil level liquid level sensor is provided with fuel tank, and main fuel tank bottom is provided with low oil level liquid level sensor；Based on the auxiliary fuel tank volume
The twice of fuel tank, and the auxiliary fuel tank bottom is back taper；The air inlet pipe is provided with auxiliary gas with main fuel tank in-line
Dissolver, the auxiliary gas dissolution apparatus include the threeway set for connecting air inlet pipeline, in-line, outlet line respectively
Pipe, the air inlet pipeline are provided with sifter, and the sifter is spongelike structure, and the sifter micropore size is 10～20
Micron, can will treat that molten gas is refined into microbubble, is quickly and completely dissolved in transformer oil；The transformer gas relay
Device is stainless steel structure, and four sides arranges glass vision panel and built-in LED illumination light source, and connects multiple Transformer Gas Relay gas
Body sample air hatch.
2. one kind passes through the preparation of analogue transformer gas relay device sample gas, acquisition method described in claim 1, specifically
Step is as follows：
（1）System vacuum：Loop valve is opened, vavuum pump is opened, the vacuum of analogue transformer gas relay device is tieed up
Hold in 700Pa～1000Pa, stand 10～20 minutes；
（2）System oiling：After transformer oil is filtered by purifier, in injection auxiliary fuel tank；
（3）Reuse oil purification：Transformer oil after filtration is heated to 70～80 DEG C, by atomising device, by the change after heating
The drop of depressor mist of oil chemical conversion 0.1mm, under negative pressure state, is dissolved in moisture vaporization in transformer oil and becomes water vapour, impurity gas
The solubility of body reduces, and loss all from oil out, discharges auxiliary fuel tank with vavuum pump, and transformer oil falls into auxiliary fuel tank bottom, continues
Continuous carry out heating, be atomized, deimpurity circulation, this step persistently carries out 90 min～120min；
（4）Gassiness quantity reset：By in transformer oil injection main fuel tank in auxiliary fuel tank, according to fault is set, transformer oil is set
Air content calculates the volume for adding Balance Air, by proportioning device accurate quantitative analysis, then by accurate quantification 80%～110%
Via in auxiliary gas dissolution apparatus injection oil, aerating speed is 0.2 L/min～1.0L/min to balanced gas, this process circulation
Until liquid gas balance, can escape more than the gas of transformer oil solvability, transformer gas relay is entered by main fuel tank top
Assemble in device, form free gas；
（5）Failure gas are prepared：According to fault is arranged, calculate various features gas concentration, volume and speed is added, distribution is set
The trim analysis of device, prepare the mixed fault gas concentration under set fault, are quantitatively adding, are circulated with proportioning device, plus
Gas speed is 0.2 L/min～1.0L/min, can escape more than the gas of transformer oil solvability, be entered by main fuel tank top
Assemble in Transformer Gas Relay, free gas is formed, gathered by Transformer Gas Relay gaseous sample air hatch.
3. according to claim 2 analogue transformer gas relay device sample gas prepare, acquisition method, its feature exists
In in step（1）Before analogue transformer gas relay device fuel tank is emptied：By remaining operation transformation in regulating oil tank
Device oil is entered in main fuel tank, by two-way air pump is to sacculus pressurization and constant voltage is to 130kPa, by remaining transformer in main fuel tank
Oil is expelled in recovery oil vessel, the operating transformer oil in auxiliary fuel tank is expelled in recovery oil vessel by circulating pump.
4. according to claim 2 analogue transformer gas relay device sample gas prepare, acquisition method, its feature exists
In the Balance Air is nitrogen.
5. according to claim 2 analogue transformer gas relay device sample gas prepare, acquisition method, its feature exists
In dissolved gas include characteristic gas CH4、C2H6、 C2H4、 C2H2、CO、CO2、H2In one or more, the gas to be dissolved
Body includes CH4、C2H6、 C2H4、 C2H2、CO、CO2、H2In one or more.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105738486A (en) * | 2016-04-08 | 2016-07-06 | 大连世有电力科技有限公司 | Intelligent configuring system of gas concentration in oil of transformer |
| 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 |
| CN109188213A (en) * | 2018-08-16 | 2019-01-11 | 西安西电变压器有限责任公司 | A kind of power transformer interior fault imitative experimental appliance |
| 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 |
| CN110992803B (en) * | 2019-11-19 | 2021-07-27 | 国网江苏省电力有限公司 | Oil-immersed transformer fire model and fire simulation method |
| CN112147500B (en) * | 2020-09-25 | 2023-10-31 | 国网安徽省电力有限公司电力科学研究院 | Gas relay calibration device |
| CN112461999A (en) * | 2020-11-12 | 2021-03-09 | 广西桂林金秉航科技有限公司 | Automatic detection gas collection box for transformer gas and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103383377B (en) * | 2012-05-04 | 2017-01-25 | 国网宁夏电力公司电力科学研究院 | Testing and calibrating device for gas-dissolved-in-transformer-oil online monitoring system |
| CN103149345B (en) * | 2013-02-25 | 2015-07-15 | 浙江省电力公司电力科学研究院 | Detecting method and detecting device for intelligent dissolved gas-in-oil component |
| CN104634898B (en) * | 2013-11-08 | 2016-10-12 | 中国石油天然气股份有限公司 | Test method and the device of transformer oil aerogenesis trend is evaluated under electric heating mixing field |
| CN104569652A (en) * | 2014-11-28 | 2015-04-29 | 国网河南省电力公司电力科学研究院 | Gas fixed-value checking table for simulating heavy gas fault realization of transformer and checking method |
| CN205609056U (en) * | 2016-02-24 | 2016-09-28 | 国网技术学院 | Real device of instructing of transformer buchholz relay sample collection |
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