CN204330703U - On-Line Monitor Device of Gas in Oil of Transformer - Google Patents
On-Line Monitor Device of Gas in Oil of Transformer Download PDFInfo
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- CN204330703U CN204330703U CN201420830517.9U CN201420830517U CN204330703U CN 204330703 U CN204330703 U CN 204330703U CN 201420830517 U CN201420830517 U CN 201420830517U CN 204330703 U CN204330703 U CN 204330703U
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- 239000007789 gas Substances 0.000 claims abstract description 106
- 239000012159 carrier gas Substances 0.000 claims abstract description 46
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000001764 infiltration Methods 0.000 claims abstract description 12
- 230000008595 infiltration Effects 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 28
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 9
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 8
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 5
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 109
- 238000000034 method Methods 0.000 description 14
- 238000012360 testing method Methods 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000000926 separation method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000004587 chromatography analysis Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 125000000219 ethylidene group Chemical group [H]C(=[*])C([H])([H])[H] 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013375 chromatographic separation Methods 0.000 description 1
- 239000010724 circulating oil Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Abstract
A kind of On-Line Monitor Device of Gas in Oil of Transformer, comprises oil circuit device, vacuum outgas film pipe, gas path device and electric control gear, the oil-feed oil pump connection transformer casing of described oil circuit device, and oil-feed oil pump exports and connects vacuum outgas film pipe; In described vacuum outgas film pipe, vacuum infiltration film is installed; The sample gas detection branch that described gas path device comprises six-way valve 1, six-way valve 3, quantity tube, chromatographic column, sensor connect and compose successively and the carrier gas that carrier gas bottle, carrier gas valve, pressure maintaining valve 1, pressure maintaining valve 0, six-way valve 4, six-way valve 5, six-way valve 1 connect and compose successively promote branch road; The gas-in-oil concentrations voltage signal that sensor exports connects CPU through analog to digital conversion circuit, and CPU exports the complex automatic system on connection data storehouse memorizer, on-the-spot display and backstage.The running status of the utility model online real-time continuous monitoring transformer, gets rid of early stage hidden danger in time, ensures the safe and reliable operation of power equipment.
Description
Technical field
The utility model belongs to intelligent grid electrical equipment technical field, is specifically related to a kind of On-Line Monitor Device of Gas in Oil of Transformer.
Background technology
In July, 2009, State Grid Corporation of China clearly proposed, and will popularize facilities and equipments repair based on condition of component in an all-round way from 2010, General Promotion device intelligence level, applies smart machine and technology, realized power grid security on-line early warning and device intelligenceization monitoring.Therefore, the intelligent online monitoring of transformer is imperative.
Transformer is before putting into operation, national rule explicitly calls for and must carry out chromatography test, but traditional method under lab carries out chromatogram test, and the cycle is long, not easily find fast development fault, the error of each test is larger, require very high to testing crew, need during test to have a power failure, impact normally runs, decrease the pot life of equipment, truly can not reflect the real-time operating conditions of transformer.And test period is concentrated, workload is large, makes human and material resources cause larger waste.
Summary of the invention
Technical problem to be solved in the utility model is: solve above-mentioned prior art Problems existing, and a kind of On-Line Monitor Device of Gas in Oil of Transformer is provided, can online, in real time, gas concentration and variation tendency in Transformer Oil Analysis continuously, to judge the running status of filling transformer, the early stage hidden danger of the oily transformer of timely eliminating, for the safe and reliable operation of power equipment provides safeguard.
The technical solution adopted in the utility model is:
A kind of On-Line Monitor Device of Gas in Oil of Transformer, comprise oil circuit device, vacuum outgas film pipe, gas path device and electric control gear, described oil circuit device comprises oil-feed oil pump, inlet oil filter, fuel-displaced oil pump and goes out oil strainer, in-line on oil-feed oil pump and inlet oil filter connection transformer box flange thereof, oil-feed oil pump exports and connects vacuum outgas film pipe, and the oil return of vacuum outgas film pipe exports by fuel-displaced oil pump and goes out oil strainer and be connected to oil tank of transformer; In described vacuum outgas film pipe, vacuum infiltration film is installed; Described gas path device comprises six-way valve, quantity tube, chromatographic column, sensor, pressure maintaining valve, carrier gas bottle, carrier gas valve and tensimeter; The isolated oil dissolved gas of vacuum outgas film pipe exports and enters six-way valve 1, and six-way valve 1, six-way valve 3, quantity tube, chromatographic column, sensor connect successively, forms sample gas detection branch; Carrier gas bottle, carrier gas valve, pressure maintaining valve 1, pressure maintaining valve 0, six-way valve 4, six-way valve 5, six-way valve 1 connect successively, form carrier gas and promote branch road; After sensor detects, residual gas exports and is connected to the outlet of degassed sample gas by pressure maintaining valve, six-way valve, degassed sample air filter, enters air; The gas-in-oil concentrations voltage analog signal that sensor exports connects analog to digital conversion circuit, analog to digital conversion circuit exports and connects CPU, CPU carries out analytical calculation, CPU exports connection data storehouse memorizer and on-the-spot display, and archival memory is also connected to the complex automatic system on backstage by communication network.
In technique scheme, described six-way valve 3, six-way valve 4, six-way valve 5 are by electric control gear programmed control.
In technique scheme, described sensor is combustible gas sensor and carbon dioxide sensor, and described combustible gas sensor comprises hydrogen, carbon monoxide, methane, ethene, acetylene and ethane sensor.
In technique scheme, be the nitrogen of 99.9% in described carrier gas bottle.
In technique scheme, described communication network adopts wire communication RS485/232/ Ethernet or wireless communication GPRS/CDMA.
In technique scheme, the E that described vacuum outgas film pipe can adopt GE company to produce ?cell ?the vacuum ventilated membrane pipe of ED model; The model DB that described chromatographic column can adopt Agilent company of the U.S. to produce ?the chromatographic column of 17MS; The Valco valve that described six-way valve and pressure maintaining valve can adopt VICI company of the U.S. to produce; The model 4p that described gas sensor can adopt CT company of Britain to produce ?90 gas sensor; The vacuum infiltration film of the model GP100 that described vacuum infiltration film can adopt Canadian MorganSchaffer company to produce.
Gas in Oil of Transformer on-line monitoring method of the present utility model and device are developed according to the relevant regulations of national standard " GB/T7252 ?A1 Gases Dissolved in Transformer Oil analyze and judge directive/guide ", can analyze component and the content of oil dissolved gas.Can continuously, in real time, online, the content of gas and rate of growth in Transformer Oil Analysis automatically, by fault diagnosis expert system, automatic diagnosis is carried out to transformer fault.Device manufactures production process and is rigid in checking up, and guarantees that quality is really up to the mark.On-Line Monitor Device of Gas in Oil of Transformer is reliable and non-maintaining, is the intelligent transformer equipment of serving intelligent grid.
On-Line Monitor Device of Gas in Oil of Transformer of the present utility model comprises the stainless steel rack of on-the-spot on-Line Monitor Device, background computer system and management software, transformer interface flange etc.
Measuring object is comprehensive, the parameters such as in H2, CO, CO2, CH4, C2H4, C2H6, C2H2, oil micro-water, oil temperature and water is active in online, continuous coverage transformer oil.
Gas-oil separation technical security, reliable.
Critical component equal selecting and purchasing industry highest ranking product.Key link parts all adopt imported with original packaging as electronic six-way valve, circulating oil pump, solenoid valve etc. and have the product of field operation experiences for many years, ensure that whole on-Line Monitor Device reliability of operation and stability, make on-Line Monitor Device non-maintaining as far as possible in operational process or to safeguard less at the scene.
In-site installation is convenient, need not have a power failure, and the turnover oil pipe of field device is arranged on transformer valve by customization flange, and in installation process, transformer is without the need to having a power failure.Whole installation process can complete within half a day.
Comprehensive self-checking function, can find device body fault at any time
Multiple communication modes, easily realizes the networking of multiple stage on-Line Monitor Device and data remote, can adopt wire communication or the GPRS/CDMA wireless communication techniques such as RS485/232/ Ethernet, realize in the data communication of various field working conditions and networking.
Field device novel in structural design, possesses lightning protection, the function such as rainproof, moistureproof.Field device adopts double-deck rack, and built-in temperature and humidity regulation module, the various severe running environment requirements such as outdoor High aititude, high and cold, height is warm can be met; There is excellent EMC Design simultaneously, the various electromagnetic field of transformer station, radio wave interference can be resisted.Product is by the electromagnetic compatibility detection experiment of national laboratory.
Technical parameter is as follows:
Cleaning Principle: gas chromatography principle
Gas-oil separation: one-time detection flow process can be completed in 1 hour
Measure kind: H
2, CO, CH
4, C
2h
4, C
2h
6, C
2h
2, CO is measured in apolegamy
2, micro-water, oil temperature and water are active in oil
Specific targets are as follows:
| Sequence number | Detected object | Minimum detectable concentration | Sensing range | Accuracy of detection |
| 1 | H2 | 1uL/L | 1～4000uL/L | ± 10% or lowest detection limit value |
| 2 | CO | 1uL/L | 1～6000uL/L | ± 10% or lowest detection limit value |
| 3 | CO2 | 10uL/L | 10～10000uL/L | ± 10% or lowest detection limit value |
| 4 | CH4 | 0.1uL/L | 0.1～4000uL/L | ± 10% or lowest detection limit value |
| 5 | C2H4 | 0.1uL/L | 0.1～4000uL/L | ± 10% or lowest detection limit value |
| 6 | C2H2 | 0.1uL/L | 0.1～1000uL/L | ± 10% or lowest detection limit value |
| 7 | C2H6 | 0.1uL/L | 0.1～4000uL/L | ± 10% or lowest detection limit value |
| 8 | Total hydrocarbon | 0.5uL/L | 0.5～8000uL/L | ± 10% or lowest detection limit value |
| 9 | Micro-water | 1uL/L | 1～200uL/L | ± 10% or lowest detection limit value |
| 10 | Water is active | 0.01 | 0～100％ | ±0.02 |
| 11 | Oil temperature | / | －40～+180℃ | ±0.1℃ |
Report to the police and export:
On-the-spot rack pilot lamp is reported to the police, mobile phone short message is reported to the police, communication alert, and field device exports hard contact and reports to the police
Data communication:
Wire communication or the GPRS/CDMA wireless communication techniques such as RS485/232/ Ethernet, adopt standard MODBUS stipulations or user to specify stipulations
Environmental baseline:
Operating ambient temperature :-50 DEG C ~+70 DEG C
Storage temperature :-50 DEG C ~+80 DEG C
Withstand voltage: 0 ~ 0.4MPa
Relative humidity: 5% ~ 95%, frozen-free
Working power:
Voltage: 220VAC ± 15%
Frequency: 50HZ
Electric current: maximum 4A
Shell: stainless steel, more than IP55
Plant bulk: about 700 (length) × 520 (wide) × 1250 (height) mm
Installation weight: 100KG
Mounting means: in-site installation, adopts the flange of customization to dock with the existing valve of transformer, customization flange is provided with stainless steel oil pipe transformer oil is introduced on-Line Monitor Device.
Installation site: strong suggestion transformer provides two valves for on-Line Monitor Device, and two valves can be position, both sides or upper-lower position, respectively as oil-in and the oil-out of oil circulation.If a valve in particular cases can only be provided, also two oil pipes can be installed on this valve.
Preliminary work before installing: user need select mounting flange, and provides flange drawing, so that the flange of my company's process units
Cable: device work need provide AC220V, 4A power supply; Telecommunication cable is one 2 core shielding communication cable or optical fiber, for the communication connection between field device to background computer.
Principle of work:
First, after one-time detection flow startup, the gas and oil separating plant in rack is introduced in transformer oil circulation by the Imported High-performance oil pump be arranged in on-the-spot rack, and high-efficiency oil-gas separating device is separated Gases Dissolved in Transformer Oil automatically
Then, the gas separated enters chromatographic separation device, makes the multiple gases mixed enter gas-detecting device one by one according to specific order, is configured with highly sensitive detector, realizes the detection to gas signal in pick-up unit
Data acquisition and calculation element calculate the concentration value of various gas automatically according to the electric signal that detector exports, then judge whether transformer exists the kind of fault and fault according to the result of fault diagnosis system, be convenient to the service work that transformer carries out next step
4) data at every turn detected can directly be sent to on-line monitoring daemon software or complex automatic system by field device.
Advantageous effect:
Before transformer puts into operation, national rule explicitly calls for and must carry out chromatography test.Traditional method, the cycle is long, not easily finds fast development fault; The error of each test is larger; Require very high to testing crew.Need during test to have a power failure, impact normally runs, and the pot life decreasing equipment truly can not reflect the operation conditions of equipment.Test period is concentrated, and workload is large, causes huge waste to human and material resources.Serial transformer oil dissolved gas on-Line Monitor Device of the present utility model solves traditional problem, gas-in-oil concentrations and variation tendency can be analyzed online, continuously, to judge oil-filled electric equipment running status, the early stage hidden danger of timely eliminating oil-filled electric equipment, for power industry device security, reliability service provide safeguard.
Accompanying drawing explanation
Fig. 1 is the utility model theory diagram;
Fig. 2 is the utility model apparatus structure schematic diagram.
In Fig. 2,1 ?chromatographic column, 2 ?electric control gear and oil, gas path device, 3 ?carrier gas bottle, 4 ?oil inlet and outlet, 5 ?oil inlet pipe, 6 ?flowline, 7 ?power lead, 8 ?communication cable line.
Embodiment
A kind of On-Line Monitor Device of Gas in Oil of Transformer, comprise oil circuit device, vacuum outgas film pipe, gas path device and electric control gear, described oil circuit device comprises oil-feed oil pump, inlet oil filter, fuel-displaced oil pump and goes out oil strainer, in-line on oil-feed oil pump and inlet oil filter connection transformer box flange thereof, oil-feed oil pump exports and connects vacuum outgas film pipe, and the oil return of vacuum outgas film pipe exports by fuel-displaced oil pump and goes out oil strainer and be connected to oil tank of transformer; In described vacuum outgas film pipe, vacuum infiltration film is installed; Described gas path device comprises six-way valve, quantity tube, chromatographic column, sensor, pressure maintaining valve, carrier gas bottle, carrier gas valve and tensimeter; The isolated oil dissolved gas of vacuum outgas film pipe exports and enters six-way valve 1, and six-way valve 1, six-way valve 3, quantity tube, chromatographic column, sensor connect successively, forms sample gas detection branch; Carrier gas bottle, carrier gas valve, pressure maintaining valve 1, pressure maintaining valve 0, six-way valve 4, six-way valve 5, six-way valve 1 connect successively, form carrier gas and promote branch road; After sensor detects, residual gas exports and is connected to the outlet of degassed sample gas by pressure maintaining valve, six-way valve, degassed sample air filter, enters air; The gas-in-oil concentrations voltage analog signal that sensor exports connects analog to digital conversion circuit, analog to digital conversion circuit exports connection CPU and carries out analytical calculation, CPU exports connection data storehouse memorizer and on-the-spot display, and archival memory is also connected to the complex automatic system on backstage by communication network.
Above-mentioned six-way valve 3, six-way valve 4, six-way valve 5 are by electric control gear programmed control.
The sensor is combustible gas sensor and carbon dioxide sensor, and inflammable gas comprises hydrogen, carbon monoxide, methane, ethene, acetylene and ethane.
Be the nitrogen of 99.9% in above-mentioned carrier gas bottle.
Above-mentioned communication network adopts wire communication RS485/232/ Ethernet or wireless communication GPRS/CDMA.
Adopt the Gas in Oil of Transformer on-line monitoring method of the utility model On-Line Monitor Device of Gas in Oil of Transformer, oil-feed oil pump is pumped from oil tank of transformer by in-line, oil enters in vacuum outgas film pipe through inlet oil filter, oil gas is separated by physical action by the vacuum infiltration film in vacuum outgas film pipe, the gas separated enters six-way valve 1, six-way valve 3 branch road, meanwhile, from carrier gas bottle, carrier gas is out by entering six-way valve 4 after the adjustment of pressure maintaining valve, six-way valve 5 branch road, six-way valve 4 under program, six-way valve 5, six-way valve 1 conducting connects, carrier gas is entered successively, promotion advance into oil dissolved gas in six-way valve 1 by six-way valve 3, quantity tube enters chromatographic column, filler in chromatographic column is according to different to the compatibility of often kind of gas, often kind of gas in mixed gas one section one section is separated, then carrier gas promotes each section of gas and enters gas sensor, corresponding gas sensor changes the concentration of often kind of gas into voltage signal, unnecessary gas is then discharged in air, analog voltage signal is converted to digital signal through A/D chip by the voltage signal be transformed into by gas concentration, digital signal carries out analytical calculation by CPU, the analysis result of CPU exports and enters database purchase and on-the-spot display, the complex automatic system on backstage is also uploaded to by communication network.
Above-mentioned communication network adopts wire communication RS485/232/ Ethernet or wireless communication GPRS/CDMA.
Above-mentioned gas sensor comprises combustible gas sensor and carbon dioxide sensor, and described inflammable gas comprises hydrogen, carbon monoxide, methane, ethene, acetylene and ethane.
Above-mentioned carrier gas is the nitrogen of 99.9%.
Above-mentioned six-way valve is by electric control gear programmed control.
The concrete enforcement of technical solutions of the utility model is further illustrated below for accompanying drawing:
Figure 1 shows that On-Line Monitor Device of Gas in Oil of Transformer theory diagram of the present utility model, import oil pump in device is by the oil-feed oil line pipe of the flange on connection transformer casing, pump from oil tank of transformer, oil is through inlet oil filter, enter vacuum infiltration film, oil gas is separated by physical action by vacuum infiltration film, the oil separated is through fuel-displaced oil pump and enter fuel-displaced oil pipe through going out oil strainer, flange on fuel-displaced oil pipe connection transformer fuel tank, the transformer oil like this through gas-oil separation is got back in oil tank of transformer again.The sample gas separated enters six-way valve 1, simultaneously from carrier gas bottle, carrier gas out enters six-way valve 4 by the adjustment of pressure maintaining valve, programmed control six-way valve 4 is with 5 conductings, carrier gas enters six-way valve 5, program controls again six-way valve 5 with six-way valve 1 conducting, its sample fate promoting to enter early stage is moved, when six-way valve 1 is with 3 conducting, carrier gas promotes sample gas and enters quantity tube, when quantity tube reaches quota, sample gas is not in input, carrier gas enters six-way valve, carrier gas continues the sample gas promoted in quantity tube and enters chromatographic column, filler in chromatographic column is according to different to the compatibility of often kind of gas, by mixed gas as hydrogen, carbon monoxide, methane, ethene, acetylene, ethane and carbon dioxide in the chromatography column one section one section separate, carrier gas promotes each section of gas and enters combustible gas sensor and carbon dioxide sensor, corresponding sensor changes the concentration of often kind of gas into voltage signal.Unnecessary gas is then discharged in air by six-way valve 6 and 2.The voltage signal that concentration is transformed into is input in A/D chip, A/D chip changes analog voltage signal into digital signal, digital signal is by the analytical calculation of device CPU, the running status of transformer can be got information about according to the analysis of transformer oil, device oneself can show and report to the police, and also can pass data to backstage by various communications protocol, show in real time on backstage, safer monitoring transformer, eliminates the worry of Site Detection transformer oil at set intervals.
Figure 2 shows that the layout of the utility model On-Line Monitor Device of Gas in Oil of Transformer critical piece, it comprises electric cabinet and oil circuit, gas path device, carrier gas device and chromatograph box.
Electric cabinet and oil, the gas circuit separation detecting device of our design comprise constant temperature and humidity instrument, import oil pump, vacuum infiltration film and the pressure maintaining valve that package unit normally works, constant temperature and humidity instrument mainly guarantees that whole device works under stable temperature and humidity environment, when temperature drift normal range or humidity are not suitable for, constant temperature and humidity instrument will be repaired ambient temperature and humidity, guarantees that whole environment is within the scope adapted to most.Import oil pump is then be extracted in device by the transformer oil in transformer by flange, and transformer oil after treatment, is turning back in transformer by transformer oil, is the Important Components realizing gas-oil separation.Vacuum infiltration film is the element really realizing gas-oil separation, oil pump is pumped through the transformer oil come, after vacuum infiltration film, physical reactions occurs, entering voltage stabilizing valve oil according to the gas in the different transformer oil of characteristic of the gentle material of oil then turns back in transformer through oil pump, the gas separated from oil we be referred to as sample gas.Pressure maintaining valve is the key element of whole gas circuit safe and stable operation, and it guarantees that whole gas enters in the middle of other elements, as the tracheae in post case, chromatographic column etc. with correct pressure.
Carrier gas device is made up of carrier gas bottle, gas circuit, tensimeter and pressure maintaining valve, carrier gas bottle is the nitrogen of 99.9%, is to store carrier gas, and when plant running, the carrier gas valve must first turned on carrier gas bottle discharges carrier gas, carrier gas mainly contains two effects, and one cleans the gas circuit of whole device; It two is that to promote that sample fate moves be the power resources of sample gas.Gas circuit is that the place that whole gas runs has pressure maintaining valve automatic control and adjustment.Pressure indicator has carrier gas bottle indicator and gas circuit indicator, the content of carrier gas bottle indicator instruction carrier gas bottle carrier gas; Gas circuit indicator indicates the running status of whole gas circuit.
Chromatograph box is the core of whole device, comprises electronic six-way valve, quantity tube, chromatographic column and sensor; Components and parts require harsh.Electronic six-way valve, as the term suggests there are six passages, by programmed control, can conducting between two, be control the element that gas enters quantity tube and chromatographic column.The effect of quantity tube takes quantitative sample gas to prepare for entering chromatographic column.Chromatographic column is different by the characteristic of chromatographic column packing material to often kind of gas, the sample gas segmentation entered is separated, detects respectively to enter sensor.Sensor its act as and change the concentration signal of gas into voltage signal, sampling precision is high.
The external cabling of the utility model On-Line Monitor Device of Gas in Oil of Transformer, comprises RS485 connection and power lead; RS485 connection is shielded cable, and 2 cores are respectively A with just lower negative on B, and line cross section is greater than 1 square millimeter, and the data of device and information are delivered to the various states of backstage real-time displaying device under daemon software by it! Power lead is the electric wire that 2 core cross sections are greater than 1.5 square millimeters, and access power supply is the working power of AC220V, 4A and 50HZ, and scope range of the fluctuation of voltage is ± 15%.In order to ensure the normal work of connection and power lead by outside excessive interference, special design and installation signal lighting protection and a lightning protection device for electric power! Guarantee normally to run in harsh working environment.
Claims (4)
1. an On-Line Monitor Device of Gas in Oil of Transformer, it is characterized in that, comprise oil circuit device, vacuum outgas film pipe, gas path device and electric control gear, described oil circuit device comprises oil-feed oil pump, inlet oil filter, fuel-displaced oil pump and goes out oil strainer, in-line on oil-feed oil pump and inlet oil filter connection transformer box flange thereof, oil-feed oil pump exports and connects vacuum outgas film pipe, and the oil return of vacuum outgas film pipe exports by fuel-displaced oil pump and goes out oil strainer and be connected to oil tank of transformer; In described vacuum outgas film pipe, vacuum infiltration film is installed; Described gas path device comprises six-way valve, quantity tube, chromatographic column, sensor, pressure maintaining valve, carrier gas bottle, carrier gas valve and tensimeter; The isolated oil dissolved gas of vacuum outgas film pipe exports and enters six-way valve 1, and six-way valve 1, six-way valve 3, quantity tube, chromatographic column, sensor connect successively, forms sample gas detection branch; Carrier gas bottle, carrier gas valve, pressure maintaining valve 1, pressure maintaining valve 0, six-way valve 4, six-way valve 5, six-way valve 1 connect successively, form carrier gas and promote branch road; After sensor detects, residual gas exports and is connected to the outlet of degassed sample gas by pressure maintaining valve, six-way valve, degassed sample air filter, enters air; The gas-in-oil concentrations voltage analog signal that sensor exports connects analog to digital conversion circuit, analog to digital conversion circuit exports and connects CPU, CPU carries out analytical calculation, CPU exports connection data storehouse memorizer and on-the-spot display, and archival memory is also connected to the complex automatic system on backstage by communication network.
2. On-Line Monitor Device of Gas in Oil of Transformer according to claim 1, is characterized in that, described six-way valve 3, six-way valve 4, six-way valve 5 are by electric control gear programmed control.
3. On-Line Monitor Device of Gas in Oil of Transformer according to claim 1, it is characterized in that, described sensor is combustible gas sensor and carbon dioxide sensor, and described combustible gas sensor comprises hydrogen, carbon monoxide, methane, ethene, acetylene and ethane sensor.
4. On-Line Monitor Device of Gas in Oil of Transformer according to claim 1, is characterized in that, described communication network adopts wire communication RS485/232/ Ethernet or wireless communication GPRS/CDMA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420830517.9U CN204330703U (en) | 2014-12-24 | 2014-12-24 | On-Line Monitor Device of Gas in Oil of Transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420830517.9U CN204330703U (en) | 2014-12-24 | 2014-12-24 | On-Line Monitor Device of Gas in Oil of Transformer |
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| CN204330703U true CN204330703U (en) | 2015-05-13 |
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| CN201420830517.9U Expired - Fee Related CN204330703U (en) | 2014-12-24 | 2014-12-24 | On-Line Monitor Device of Gas in Oil of Transformer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569258A (en) * | 2014-12-24 | 2015-04-29 | 特变电工湖南智能电气有限公司 | Online monitoring method and device for gases in transformer oil |
| CN109900644A (en) * | 2019-04-11 | 2019-06-18 | 南京无书化工有限公司 | A kind of component transformer oil gas on-Line Monitor Device and method less |
| CN110879268A (en) * | 2019-12-03 | 2020-03-13 | 河北英博认证有限公司河南分公司 | Safety detection equipment for transformer oil of power grid |
-
2014
- 2014-12-24 CN CN201420830517.9U patent/CN204330703U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569258A (en) * | 2014-12-24 | 2015-04-29 | 特变电工湖南智能电气有限公司 | Online monitoring method and device for gases in transformer oil |
| CN109900644A (en) * | 2019-04-11 | 2019-06-18 | 南京无书化工有限公司 | A kind of component transformer oil gas on-Line Monitor Device and method less |
| CN109900644B (en) * | 2019-04-11 | 2024-04-16 | 南京无书化工有限公司 | Device and method for on-line monitoring of oil gas of low-component transformer |
| CN110879268A (en) * | 2019-12-03 | 2020-03-13 | 河北英博认证有限公司河南分公司 | Safety detection equipment for transformer oil of power grid |
| CN110879268B (en) * | 2019-12-03 | 2021-08-24 | 河北英博认证有限公司河南分公司 | Safety detection equipment for transformer oil of power grid |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210512 Address after: 421133 block tbdg, Songjiang town, Yunji Town, Hengnan County, Hengyang City, Hunan Province Patentee after: TBEA Yunji Electric Co.,Ltd. Address before: 421007 No.1 transformer village, Baishazhou TBEA, Yanfeng District, Hengyang City, Hunan Province Patentee before: TBEA HUNAN INTELLIGENCE ELECTRIC Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 |