CN104880538B - Device and method for on-site inspection of online monitor for dissolved gas in transformer oil - Google Patents
Device and method for on-site inspection of online monitor for dissolved gas in transformer oil Download PDFInfo
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- CN104880538B CN104880538B CN201510290893.2A CN201510290893A CN104880538B CN 104880538 B CN104880538 B CN 104880538B CN 201510290893 A CN201510290893 A CN 201510290893A CN 104880538 B CN104880538 B CN 104880538B
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Abstract
The invention relates to the technical field of transformer oil analysis and inspection, in particular to a device for on-site inspection of an online monitor for dissolved gas in transformer oil. The device comprises a gas bottle and oil sample tanks, the gas bottle is connected with a three-way valve through a pipeline, the three-way valve is connected to the oil sample tanks and an oil collection tank through a gas feeding pipe and an oil feeding pipe respectively, the oil sample tanks include multiple testing oil sample tanks and a new oil tank, an elastic oil-resistant airbag is arranged inside each oil sample tank, an oil sample is contained in each elastic oil-resistant airbag, a bottom outlet of each elastic oil-resistant airbag is communicated with the oil feeding pipe, a collection valve is arranged on the oil feeding pipe correspondingly to the oil collection tank which is connected with a vacuumizing device, and an inspection branched pipe is arranged on the oil feeding pipe and connected to a to-be-inspected device through an inspection valve. The device is simple and portable in structure, suitable for on-site inspection of the online monitor for the dissolved gas in the oil and high in inspection accuracy. The invention further provides a method using the device. The online monitor for the dissolved gas in the oil can be inspected quickly, and inspection accuracy is guaranteed.
Description
Technical field
The present invention relates to transformer oil technical field of analysis and detection is and in particular to a kind of Gases Dissolved in Transformer Oil is online
Monitor field test device and method.
Background technology
With pushing forward comprehensively of power transmission and transformation equipment state overhauling work, increasing Gases Dissolved in Transformer Oil is online
Monitor is used in the status monitoring of converting equipment, the safety of Gases Dissolved in Transformer Oil on-line computing model, reliability, steady
Qualitative and measurement result accuracy directly affects comprehensively effectively carrying out of repair based on condition of component work.For inspection installation and operation
Gases Dissolved in Transformer Oil on-line computing model test data accuracy, lifts on-Line Monitor Device Supervision Management Level, to it
Examined and determine and verification is very necessary, lack in prior art and Gases Dissolved in Transformer Oil on-line computing model is carried out now
The device of field detection.
Content of the invention
For solving the deficiency in above-mentioned technology, it is an object of the invention to: provide a kind of Gases Dissolved in Transformer Oil to exist
Line monitor field test device, structure is simply portable it is adaptable to the scene of Gases Dissolved in Transformer Oil on-line computing model is examined
Survey, and accuracy of detection is high, the present invention also provides a kind of Gases Dissolved in Transformer Oil on-line computing model field test device inspection
Method, can be used for quickly detecting it is ensured that accuracy of detection to Gases Dissolved in Transformer Oil on-line computing model.
For solving its technical problem, the technical solution used in the present invention is:
Described Gases Dissolved in Transformer Oil on-line computing model field test device, including gas cylinder, oil sample tank and accumulator tank,
Gas cylinder is provided with outlet, and cylinder outlet is connected to three-way valve by pipeline, three-way valve respectively pass through snorkel and send oil pipe connect to
Oil sample tank and accumulator tank, oil sample tank includes multiple test oil sample tanks and a new oil sample tank, and on snorkel, corresponding each oil sample tank divides
Not She Zhi air intake branch, air intake branch arranges air intake valve, the elastic oil resistant air bag of setting, elastic oil resistant air bag inside oil sample tank
Interior splendid attire oil sample, elastic oil resistant air bag outlet at bottom is connected with sending oil pipe with oil sample valve by sending oil inlet pipe, and it is right on oil pipe to send
Answer accumulator tank setting to collect valve, accumulator tank connects vacuum extractor, send three-way valve and the position collected between valve on oil pipe to set inspection
Survey arm, setting detection valve on detection arm, detection arm is connected to device to be detected by detecting valve.
The present invention is a kind of on-site detecting device, can be easily transferred to the place of survey, gas by floor truck
Contain noble gases, such as nitrogen in bottle, gas flow in gas cylinder is controlled by three-way valve, three-way valve can adopt manual switching
Valve can also be using the valve automatically switching, such valve belong to market and now sell product, its structure is not described in detail, if
The oil sample tank put includes containing fresh oil oil sample, namely for methane, second in multiple test oil sample tanks and a new oil sample tank, new oil sample tank
The extremely low transformer oil of the gas contents such as alkene, ethane, acetylene, contains the test oil sample of variable concentrations respectively in test oil sample tank,
In detection process, the test oil sample of variable concentrations can be selected as needed to test, fresh oil oil sample is used for cleaning detection
Later pipeline and device, prevent impurity effect accuracy of detection next time of residual in pipeline, the resistance to oil gas of the elasticity in such scheme
Capsule is made using elastomeric material, can select suitable quality of rubber materials according to the oil sample characteristic containing in oil sample tank.
Wherein, preferred version is:
Described oil-collecting pot bottom is provided with oil exit pipe, and oil exit pipe is provided with oil extraction valve, can pass through draining valve goalkeeper's oil-collecting
Fluid in tank is discharged.
Described accumulator tank is provided with check valve, and after preventing evacuation in accumulator tank, extraneous gas enters inside accumulator tank.
Described test oil sample tank is provided with 3-5, and the test oil sample that can arrange 3-5 kind concentration is used for the inspection of device to be detected
Test.
Described vacuum means are set to vacuum pump, for realizing the evacuation to accumulator tank and associated pipe.
The present invention also provides one kind to carry out using above-mentioned Gases Dissolved in Transformer Oil on-line computing model field test device
The method of inspection, comprises the following steps:
The first step, opens gas cylinder, and the connection of switching three-way valve is sent oil pipe, opened collection valve, in gas cylinder, pressed gas will send oil
Residual impurity in pipe is blown to accumulator tank；
Second step, switching three-way valve, connect snorkel, open vacuum extractor, carry out evacuation to sending oil pipe；
3rd step, closes and collects valve, opens one of test oil sample tank two ends according to the detection demand of device to be detected
Air intake valve and oil sample valve, open detection valve simultaneously, in gas cylinder gas by air intake valve enter test oil sample tank squeeze
Press its internal elastic oil resistant air bag, elastic oil resistant air bag build-in test oil sample enters device to be detected by sending oil pipe；
4th step, after detection finishes, closes the oil sample valve opened in the 3rd step and air intake valve, opens new oil sample tank two
The air intake valve at end and oil sample valve, fresh oil oil sample enters device to be detected, it is sent oil pipe and device to be detected are rinsed；
5th step, closes all valves, completes to check.
When carrying out detection next time, repeat the above steps.
Compared with prior art, the method have the advantages that
Present configuration simply portable it is adaptable to the Site Detection of oil dissolved gas on-line computing model, and accuracy of detection
Height, when device uses, can be easily transferred to the place of survey by floor truck, gas cylinder controls its gas by three-way valve
Flow direction, before inspection, first to sending oil pipe to carry out impurities removal operation, and carries out evacuation to accumulator tank, prevents impurity in pipeline gentle
Body impact detection structure, the oil sample tank of setting includes a new oil sample tank and multiple test oil sample tank, in test oil sample tank respectively
Contain the oil sample of variable concentrations, in detection process, the test oil sample of variable concentrations can be selected as needed to test, newly
Oil sample tank is used for the pipeline and device after cleaning detection, prevents impurity effect accuracy of detection next time in pipeline.
Brief description
Fig. 1 present configuration schematic diagram.
In figure: 1, gas cylinder；2nd, three-way valve；3rd, snorkel；4th, send oil pipe；5th, new oil sample tank；6th, test oil sample tank；7th, air inlet
Arm；8th, air intake valve；9th, elastic oil resistant air bag；10th, send oil inlet pipe；11st, oil sample valve；12nd, accumulator tank；13rd, collect valve；
14th, vacuum extractor；15th, detect arm；16th, detect valve；17th, device to be detected；18th, oil exit pipe；19th, oil extraction valve；20、
Check valve.
Specific embodiment
Below in conjunction with the accompanying drawings the embodiment of the present invention is described further:
Embodiment 1:
As shown in figure 1, Gases Dissolved in Transformer Oil on-line computing model field test device of the present invention, including gas cylinder
1st, oil sample tank and accumulator tank 12, gas cylinder 1 is provided with outlet, and gas cylinder 1 outlet is connected to three-way valve 2 by pipeline, and three-way valve 2 leads to respectively
Cross snorkel 3 and send oil pipe 4 to connect to oil sample tank and accumulator tank 12, oil sample tank includes multiple test oil sample tanks 6 and a fresh oil
Sample tank 5, on snorkel 3, corresponding each oil sample tank is respectively provided with air intake branch 7, and air intake branch 7 arranges air intake valve 8, oil sample tank
Internal setting elasticity oil resistant air bag 9, contains oil sample in elastic oil resistant air bag 9, elastic oil resistant air bag 9 outlet at bottom is by sending oil
Pipe 10 connects with sending oil pipe 4 with oil sample valve 11, send corresponding accumulator tank 12 setting on oil pipe 4 to collect valve 13, accumulator tank 12 connects
Vacuum extractor 14, send three-way valve 2 and the position collected between valve 13 on oil pipe 4 to set detection arm 15, detection arm 15 sets
Put detection valve 16, detection arm 15 passes through to detect that valve 16 connects to device 17 to be detected.
Wherein, accumulator tank 12 bottom is provided with oil exit pipe 18, and oil exit pipe 18 is provided with oil extraction valve 19, can pass through draining valve
Fluid in accumulator tank 12 is discharged by door 19；Accumulator tank 12 is provided with check valve 20, prevents outside after evacuation in accumulator tank 12
Gas enters inside accumulator tank 12；Test oil sample tank 6 is provided with 3-5, and the test oil sample that can arrange 3-5 kind concentration is for be checked
Survey the inspection of device 17；Vacuum extractor 14 is vacuum pump, for realizing the evacuation of accumulator tank 12 and associated pipe.
The present embodiment structure simply portable it is adaptable to the Site Detection of oil dissolved gas on-line computing model, and detect essence
Degree is high, during use, can be easily transferred to the place of survey by floor truck, contain noble gases, for example in gas cylinder 1
Nitrogen, controls gas flow in gas cylinder 1 by three-way valve 2, and three-way valve 2 can adopt the valve of manual switching can also adopt certainly
The valve of dynamic switching, such valve belongs to market and now sells product, its structure is not described in detail, and the oil sample tank of setting includes fresh oil
Sample tank 5 and multiple test oil sample tank 6, contain fresh oil oil sample in new oil sample tank 5, the gas such as namely for methane, ethylene, ethane, acetylene contains
Measure extremely low transformer oil, in test oil sample tank 6, contain the oil sample of variable concentrations respectively, in detection process, can be according to need
The test oil sample of variable concentrations to be selected is tested, and new oil sample tank 5 is used for the pipeline and device after cleaning detection, prevents from managing
Impurity effect accuracy of detection next time in road, elastic oil resistant air bag 9 is made using elastomeric material, can be according to splendid attire in oil sample tank
Oil sample characteristic selects suitable quality of rubber materials.
Embodiment 2:
The present embodiment provides one kind using Gases Dissolved in Transformer Oil on-line computing model field test dress described in embodiment 1
Put the method tested, comprise the following steps:
The first step, opens gas cylinder 1, and oil pipe 4 is sent in switching three-way valve 2 connection, opens collection valve 13, pressed gas in gas cylinder 1
It is blown to accumulator tank 12 by sending the residual impurity in oil pipe 4；
Second step, switching three-way valve 2, connect snorkel 3, open vacuum extractor 14, carry out evacuation to sending oil pipe 4；
3rd step, closes and collects valve 13, opens one of test oil sample tank 6 according to the detection demand of device 17 to be detected
The air intake valve 8 at two ends and oil sample valve 11, open detection valve 16 simultaneously, and in gas cylinder 1, gas passes through air intake valve 8 entrance survey
Its internal elastic oil resistant air bag 9 of formation testing sample tank 6 extruding, elastic oil resistant air bag 9 build-in test oil sample is to be checked by sending oil pipe 4 to enter
Survey device 17；
4th step, after detection finishes, closes the oil sample valve 11 opened in the 3rd step and air intake valve 8, opens new oil sample
The air intake valve 8 at tank 5 two ends and oil sample valve 11, fresh oil oil sample enters device 17 to be detected, and it is sent with oil pipe 4 and dress to be detected
Put 17 to be rinsed；
5th step, closes all valves, completes to check.
Oil dissolved gas on-line computing model can be used for quickly detecting for the present embodiment it is ensured that accuracy of detection, under carrying out
During secondary detection, repeat the above steps.
Claims (6)
1. a kind of Gases Dissolved in Transformer Oil on-line computing model field test device is it is characterised in that include gas cylinder (1), oil
Sample tank and accumulator tank (12), gas cylinder (1) is provided with outlet, and gas cylinder (1) outlet is connected to three-way valve (2), three-way valve (2) by pipeline
Pass through snorkel (3) respectively and send oil pipe (4) to connect to oil sample tank and accumulator tank (12), oil sample tank includes multiple test oil sample tanks
(6) and one new oil sample tank (5), the upper corresponding each oil sample tank of snorkel (3) is respectively provided with air intake branch (7), on air intake branch (7)
Setting air intake valve (8), the elastic oil resistant air bag (9) of setting inside oil sample tank, contain oil sample, elasticity in elastic oil resistant air bag (9)
Oil resistant air bag (9) outlet at bottom is connected with sending oil pipe (4) with oil sample valve (11) by sending oil inlet pipe (10), send on oil pipe (4)
Valve (13) is collected in corresponding accumulator tank (12) setting, and accumulator tank (12) connects vacuum extractor (14), send oil pipe (4) upper three-way valve
(2) position and collection valve (13) between sets detection arm (15), and the upper setting of detection arm (15) detects valve (16), detection
Pipe (15) passes through to detect that valve (16) connects to device to be detected (17).
2. Gases Dissolved in Transformer Oil on-line computing model field test device according to claim 1 it is characterised in that
Described accumulator tank (12) bottom is provided with oil exit pipe (18), and oil exit pipe (18) is provided with oil extraction valve (19).
3. Gases Dissolved in Transformer Oil on-line computing model field test device according to claim 1 and 2, its feature exists
In described accumulator tank (12) is provided with check valve (20).
4. Gases Dissolved in Transformer Oil on-line computing model field test device according to claim 1 it is characterised in that
Described test oil sample tank (6) is provided with 3-5.
5. Gases Dissolved in Transformer Oil on-line computing model field test device according to claim 1 it is characterised in that
Described vacuum extractor (14) is vacuum pump.
6. a kind of tested using the Gases Dissolved in Transformer Oil on-line computing model field test device described in claim 1
Method it is characterised in that comprising the following steps:
The first step, opens gas cylinder (1), and oil pipe (4) is sent in switching three-way valve (2) connection, opens pressure in collection valve (13), gas cylinder (1)
Strength body will send the residual impurity in oil pipe (4) to be blown to accumulator tank (12)；
Second step, switching three-way valve (2), connection snorkel (3), open vacuum extractor (14), take out very to sending oil pipe (4) to carry out
Empty；
3rd step, closes and collects valve (13), opens one of test oil sample tank according to the detection demand of device to be detected (17)
(6) air intake valve (8) at two ends and oil sample valve (11), opens detection valve (16) simultaneously, and in gas cylinder (1), gas passes through air inlet
Valve (8) enters test oil sample tank (6) and extrudes its internal elastic oil resistant air bag (9), elastic oil resistant air bag (9) build-in test oil sample
Enter device to be detected (17) by sending oil pipe (4)；
4th step, after detection finishes, closes the oil sample valve (11) opened in the 3rd step and air intake valve (8), opens new oil sample
The air intake valve (8) at tank (5) two ends and oil sample valve (11), fresh oil oil sample enters device to be detected (17), and it is sent with oil pipe (4)
And device (17) to be detected is rinsed；
5th step, closes all valves, completes to check.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510290893.2A CN104880538B (en) | 2015-05-30 | 2015-05-30 | Device and method for on-site inspection of online monitor for dissolved gas in transformer oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510290893.2A CN104880538B (en) | 2015-05-30 | 2015-05-30 | Device and method for on-site inspection of online monitor for dissolved gas in transformer oil |
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| Publication Number | Publication Date |
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| CN104880538A CN104880538A (en) | 2015-09-02 |
| CN104880538B true CN104880538B (en) | 2017-01-18 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226504B (en) * | 2016-07-19 | 2019-05-14 | 华电宁夏灵武发电有限公司 | A kind of oil sample calibration device of Gases Dissolved in Transformer Oil on-Line Monitor Device |
| CN107132105A (en) * | 2017-06-22 | 2017-09-05 | 南瑞通用电气智能监测诊断（武汉）有限公司 | A kind of standard gas preparation device |
| CN109239314A (en) * | 2018-08-20 | 2019-01-18 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | standard oil sample switching device |
| CN112033852B (en) * | 2020-09-11 | 2023-11-07 | 广东电网有限责任公司肇庆供电局 | Method for detecting gas content of oil sample |
| CN112221547A (en) * | 2020-10-12 | 2021-01-15 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Laboratory insulating oil dehydration and degassing storage device and dehydration and degassing storage method |
| CN113654837B (en) * | 2021-06-18 | 2022-12-06 | 国网山东省电力公司淄博供电公司 | Oil gas analog sampling device of transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4514535B2 (en) * | 2004-07-14 | 2010-07-28 | 三菱電機プラントエンジニアリング株式会社 | Dissolved gas monitoring equipment in oil |
| 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 |
| CN204666605U (en) * | 2015-05-30 | 2015-09-23 | 国家电网公司 | Gases Dissolved in Transformer Oil on-line computing model field test device |
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Address after: 100000 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Patentee after: State Grid Corporation of China Patentee after: ELECTRIC POWER Research Institute ANHUI ELECTRIC POWER COMPANY OF STATE GRID Address before: 100000 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Patentee before: State Grid Corporation of China Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID ANHUI ELECTRIC POWER Co. |
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Address after: 230601 No. 299, Ziyun Road, Shushan District, Hefei City, Anhui Province Patentee after: ELECTRIC POWER Research Institute ANHUI ELECTRIC POWER COMPANY OF STATE GRID Patentee after: State Grid Corporation of China Address before: 100000 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Patentee before: State Grid Corporation of China Patentee before: ELECTRIC POWER Research Institute ANHUI ELECTRIC POWER COMPANY OF STATE GRID |