CN109781627A - Wall-mount transformer oil dissolved gas on-Line Monitor Device based on laser detection - Google Patents
Wall-mount transformer oil dissolved gas on-Line Monitor Device based on laser detection Download PDFInfo
- Publication number
- CN109781627A CN109781627A CN201910202829.2A CN201910202829A CN109781627A CN 109781627 A CN109781627 A CN 109781627A CN 201910202829 A CN201910202829 A CN 201910202829A CN 109781627 A CN109781627 A CN 109781627A
- Authority
- CN
- China
- Prior art keywords
- solenoid valve
- gas
- cylinder
- gas chamber
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims abstract description 6
- 238000005070 sampling Methods 0.000 claims abstract description 6
- 238000005194 fractionation Methods 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 61
- 239000012528 membrane Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000931526 Acer campestre Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The present invention discloses a kind of wall-mount transformer oil dissolved gas on-Line Monitor Device based on laser detection that measurement efficiency and accuracy can be improved; there is gas chamber and is placed in the indoor gas fractionation unit of gas; laser sensor and the protective cover on gas fractionation unit are equipped in gas chamber; the gas chamber passes sequentially through concatenated first solenoid valve all the way and second solenoid valve is communicated with atmosphere, and another way is communicated by third solenoid valve with atmosphere；Equipped with cylinder and the piston being placed in cylinder, the volume ratio at least 15:1 of the cylinder and gas chamber, cylinder one end connects with the junction of the first solenoid valve and second solenoid valve, and piston is driven by stepper motor；Equipped with controller, the controller controls stepper motor and is connected by driving and sampling module with laser sensor, and first solenoid valve, second solenoid valve and third solenoid valve are controlled by controller.
Description
Technical field
The present invention relates to a kind of Gases Dissolved in Transformer Oil on-Line Monitor Device, measurement efficiency is can be improved in especially one kind
And the wall-mount transformer oil dissolved gas on-Line Monitor Device based on laser detection of accuracy.
Background technique
Gases Dissolved in Transformer Oil on-Line Monitor Device is the dress to the real time measures such as transformation Oil Dissolved Gases Concentrations
It sets, it is therefore an objective to avoid the failures such as transformer oil overheat, electric discharge from occurring, be one of the means for ensureing power grid security and effectively running.Mesh
Before, for wall-mount transformer dissolved gas in oil on-Line Monitor Device using relatively broad, this device is typically mounted at the special of transformer
With on flange, separating the gas dissolved in transformer oil under normal pressure by gas and oil separating plants such as permeable membranes and be filled with gas chamber,
And by the mixed number of the indoor multiple gases of sensor measurement gas of electrochemical principle, by oil dissolved gas total concentration and
The corresponding relationship of gas concentration calculates the concentration of oil dissolved gas in gas chamber.There are the following problems:
1. the process of Oil-gas Separation is slow, a few hours is generally needed to can be only achieved stable state to 24 hours；
2. electrochemical sensor can consume tested gas when measuring, cause accuracy of measurement low, measured only gas mixing
Value, is not capable of measuring each component content in mixed gas；
3. not only service life is low (being as short as some months) for electrochemical sensor, but also required gas chamber is larger, directly increases online prison
Survey device volume.
Summary of the invention
The present invention be in order to solve above-mentioned technical problem present in the prior art, provide one kind can be improved measurement efficiency and
The wall-mount transformer oil dissolved gas on-Line Monitor Device based on laser detection of accuracy.
The technical solution of the invention is as follows: a kind of wall-mount transformer oil dissolved gas based on laser detection is online
Monitoring device has gas chamber and is placed in the indoor gas fractionation unit of gas, laser sensor is equipped in gas chamber and positioned at gas point
From the protective cover on device, the gas chamber passes sequentially through concatenated first solenoid valve all the way and second solenoid valve is communicated with atmosphere,
Another way is communicated by third solenoid valve with atmosphere；Equipped with cylinder and the piston being placed in cylinder, the body of the cylinder and gas chamber
Product ratio at least 15:1, cylinder front end connect with the junction of the first solenoid valve and second solenoid valve, and piston is by being located at cylinder rear end
Stepper motor driving；Equipped with controller, the controller controls stepper motor and by driving and sampling module and laser
Sensor connects, and first solenoid valve, second solenoid valve and third solenoid valve are controlled by controller.
The present invention can control set solenoid valve by controller and realize negative pressure gas collection, greatly shorten the Oil-gas Separation time
(be no more than 20 minutes), while using laser sensor avoids because accuracy of measurement is low etc. caused by consuming tested gas
Problem, broad quantum and accuracy are high；Each component content in mixed gas can be carried out by modulation optical maser wavelength simultaneously quasi-
Really detection.Used laser sensor also has many advantages, such as that long service life, required gas chamber are small compared to electrochemical sensor, directly
It connects and extends the service life of monitoring device, reduces device volume, reduce manufacture and use cost.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the embodiment of the present invention.
Fig. 2 is schematic block circuit diagram of the embodiment of the present invention.
Specific embodiment
Wall-mount transformer oil dissolved gas on-Line Monitor Device institute as shown in Figure 1, Figure 2 based on laser detection of the invention
Show there is shell 13 as the prior art, has gas chamber 1 in shell 13 and the gas fractionation units such as the permeable membrane that is placed in gas chamber 1
2, it is fixed with except that being sealed in gas chamber 1 for the laser sensor 3 of detection gas and positioned at gas with the prior art
The materials such as wire mesh can be used in protective cover 4 on separator 2, protective cover 4, damage under negative pressure state to avoid permeable membrane
It is bad.1 one tunnel of gas chamber passes sequentially through concatenated first solenoid valve 5 and second solenoid valve 6 is communicated with atmosphere, and another way passes through third electricity
Magnet valve 7 is communicated with atmosphere；Equipped with cylinder 8 and the piston being placed in cylinder 9, the volume ratio at least 15:1 of cylinder and gas chamber, cylinder 8
Front end connects with the junction of the first solenoid valve 5 and second solenoid valve 6, and settable threeway has connected cylinder 8, the first solenoid valve 5
With second solenoid valve 6, piston 9 is driven by the stepper motor 10 for being located at 8 rear end of cylinder；Equipped with controller 11, single-chip microcontroller can be used
Deng, controller 11 controls stepper motor 10 and is connected by driving and sampling module 12 with laser sensor 3, the first solenoid valve 5,
Second solenoid valve 6 and third solenoid valve 7 are controlled by controller 11.
The course of work:
Prepare: controller 11 controls second solenoid valve 6 and opens, and the first solenoid valve 5 and third solenoid valve 7 are closed, control stepping electricity
Machine 10 makes piston 9 run to rear end from 8 front end of cylinder, draws air into cylinder 8；It controls second solenoid valve 6 to close, opens first
Air in cylinder 8 before driving stepper motor 10 runs to piston 9 from afterwards, is passed through the by solenoid valve 5 and third solenoid valve 7
The path of one solenoid valve 5- gas chamber 1- third solenoid valve 7 enters atmosphere, and the remaining gas purging in gas chamber 1 is clean simultaneously
It is replaced with air, later, closes the first solenoid valve 5 and third solenoid valve 7.
Degassing: the first solenoid valve 5 of control is opened, after driving stepper motor 10 runs to piston 9 from the front end of cylinder 8
The first solenoid valve 5 is closed at end；It opens second solenoid valve 6 and closes second before driving stepper motor 11 runs to piston 9 from afterwards
Solenoid valve 6；The air in gas chamber 1 is extracted out twice repeatedly, causes the indoor negative pressure of gas, makes oil dissolved gas quickly through gas point
Enter gas chamber from device 2 and protective cover 4, is kept for 5 minutes, oil-gas is made to reach equilibrium state.
Gas collection: it opens the first solenoid valve 5 and closes the first solenoid valve after driving stepper motor 10 runs to 9 the past of piston
5, it is kept for 5 minutes, oil-gas is made to reach equilibrium state；The first solenoid valve 5 is opened, driving stepper motor 10 makes piston 9 from rear operation
Before arriving, the first solenoid valve 5 is closed.
Measurement: controller 11 is controlled laser sensor 3 and acted and modulate laser frequency by driving and sampling module 12 is
The corresponding frequency of each gas, then the detection signal of laser sensor 3 is sent to controller, gained by driving and sampling module 12
Data are the gas component content in gas chamber 1.The pass of gas chamber 1 and oil dissolved gas when controller 11 is balanced according to oil-gas
It is model, calculates the content value of oil dissolved gas.
Claims (1)
1. a kind of wall-mount transformer oil dissolved gas on-Line Monitor Device based on laser detection, has gas chamber (1) and is placed in
Gas fractionation unit (2) in gas chamber (1), it is characterised in that: be equipped with laser sensor (3) in gas chamber (1) and be located at gas
Protective cover (4) on separator (2), the gas chamber (1) pass sequentially through concatenated first solenoid valve (5) and the second electromagnetism all the way
Valve (6) is communicated with atmosphere, and another way is communicated by third solenoid valve (7) with atmosphere；Equipped with work cylinder (8) and be placed in cylinder
It fills in (9), the volume ratio at least 15:1 of the cylinder (8) and gas chamber (1), cylinder (8) front end and the first solenoid valve (5) and the second electricity
The junction of magnet valve (6) connects, and piston (9) is driven by the stepper motor (10) for being located at cylinder (8) rear end；Equipped with controller
(11), the controller (11) controls stepper motor (10) and by driving and sampling module (12) and laser sensor (3) phase
It connects, first solenoid valve (5), second solenoid valve (6) and third solenoid valve (7) are controlled by controller (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202829.2A CN109781627A (en) | 2019-03-18 | 2019-03-18 | Wall-mount transformer oil dissolved gas on-Line Monitor Device based on laser detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202829.2A CN109781627A (en) | 2019-03-18 | 2019-03-18 | Wall-mount transformer oil dissolved gas on-Line Monitor Device based on laser detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109781627A true CN109781627A (en) | 2019-05-21 |
Family
ID=66488261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910202829.2A Withdrawn CN109781627A (en) | 2019-03-18 | 2019-03-18 | Wall-mount transformer oil dissolved gas on-Line Monitor Device based on laser detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109781627A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115753626A (en) * | 2022-11-22 | 2023-03-07 | 国家电投集团贵州金元威宁能源股份有限公司 | Photoacoustic spectroscopy technology-based online monitoring system for dissolved gas in transformer oil |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419330A (en) * | 2011-12-07 | 2012-04-18 | 重庆市电力公司电力科学研究院 | Gas content detection device for hydrogen fluoride HF, and method for the same |
| CN103411920A (en) * | 2013-07-03 | 2013-11-27 | 安徽建筑大学 | Portable multi-component online monitor of gas dissolved in transformer oil |
| CN104165880A (en) * | 2014-08-20 | 2014-11-26 | 国家电网公司 | Online detecting method of dissolved gas in transformer oil |
| CN104623930A (en) * | 2015-01-29 | 2015-05-20 | 国家电网公司 | Degasser applied to analysis of dissolved gas in oil by photoacoustic spectroscopy principle |
| CN107247108A (en) * | 2017-07-04 | 2017-10-13 | 四方特变电工智能电气有限公司 | Transformer oil monitors highly enriched vacuum gas and oil separating plant and method on-line |
| CN108333279A (en) * | 2018-01-25 | 2018-07-27 | 河南中分仪器股份有限公司 | Dissolved gases in insulating oil on-Line Monitor Device and gases dissolved in insulation oil escape method |
| CN209673628U (en) * | 2019-03-18 | 2019-11-22 | 大连世有电力科技有限公司 | Wall-mount transformer oil dissolved gas on-Line Monitor Device based on laser detection |
-
2019
- 2019-03-18 CN CN201910202829.2A patent/CN109781627A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419330A (en) * | 2011-12-07 | 2012-04-18 | 重庆市电力公司电力科学研究院 | Gas content detection device for hydrogen fluoride HF, and method for the same |
| CN103411920A (en) * | 2013-07-03 | 2013-11-27 | 安徽建筑大学 | Portable multi-component online monitor of gas dissolved in transformer oil |
| CN104165880A (en) * | 2014-08-20 | 2014-11-26 | 国家电网公司 | Online detecting method of dissolved gas in transformer oil |
| CN104623930A (en) * | 2015-01-29 | 2015-05-20 | 国家电网公司 | Degasser applied to analysis of dissolved gas in oil by photoacoustic spectroscopy principle |
| CN107247108A (en) * | 2017-07-04 | 2017-10-13 | 四方特变电工智能电气有限公司 | Transformer oil monitors highly enriched vacuum gas and oil separating plant and method on-line |
| CN108333279A (en) * | 2018-01-25 | 2018-07-27 | 河南中分仪器股份有限公司 | Dissolved gases in insulating oil on-Line Monitor Device and gases dissolved in insulation oil escape method |
| CN209673628U (en) * | 2019-03-18 | 2019-11-22 | 大连世有电力科技有限公司 | Wall-mount transformer oil dissolved gas on-Line Monitor Device based on laser detection |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115753626A (en) * | 2022-11-22 | 2023-03-07 | 国家电投集团贵州金元威宁能源股份有限公司 | Photoacoustic spectroscopy technology-based online monitoring system for dissolved gas in transformer oil |
| CN115753626B (en) * | 2022-11-22 | 2024-02-02 | 国家电投集团贵州金元威宁能源股份有限公司 | Online monitoring system for dissolved gas of transformer oil based on photoacoustic spectroscopy technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104198393B (en) | SF 6decomposed gas component on-line monitoring system and method in electrical equipment | |
| CN101546646B (en) | On-line monitoring oil-gas separation device for transformer | |
| CN209673628U (en) | Wall-mount transformer oil dissolved gas on-Line Monitor Device based on laser detection | |
| CN111175232B (en) | Photoacoustic spectroscopy device for detecting dissolved gas in transformer oil | |
| CN106872613B (en) | Transformer standard oil sample preparation device and operation method thereof | |
| CN204008434U (en) | Gas decomposition product device in optoacoustic spectroscopy on-line monitoring SF6 electrical equipment | |
| CN209910920U (en) | Device for detecting battery leakage | |
| CN104165880A (en) | Online detecting method of dissolved gas in transformer oil | |
| CN109781627A (en) | Wall-mount transformer oil dissolved gas on-Line Monitor Device based on laser detection | |
| CN102527094B (en) | Oil-gas separation device for transformer insulation oil | |
| CN109916568A (en) | Electric machine controller sealing propertytest system, device and method | |
| CN203405324U (en) | automatic open and close valve pressure test apparatus for cell safety valve | |
| CN112067557A (en) | Oil-gas detection device of oil-immersed equipment | |
| CN217277828U (en) | Gas detection device | |
| CN203054187U (en) | Intrinsic safety spark test device | |
| CN112213277A (en) | Oil-immersed equipment oil way control method and device | |
| CN110314486A (en) | A kind of Portable sulphur hexafluoride tail gas recycle and purification device | |
| CN108760464A (en) | A kind of method and device for realizing the control of fuel tank positive/negative pressure alternation | |
| CN112067556B (en) | Oil-gas detection method and device for oil-immersed equipment | |
| CN103900980A (en) | Full-automatic calibration control system for long-optical distance DOAS (Differential Optical Absorption Spectroscopy) gas analyzer and calibration method thereof | |
| CN112179983A (en) | Oil-immersed equipment alarm device | |
| CN104330355A (en) | Dual-optical-path oxynitride analyzer | |
| CN204347007U (en) | A kind of gas controlling device | |
| CN207488258U (en) | A kind of SF6Decomposition product detector calibration equipment | |
| CN108287216A (en) | Highly sensitive hydrogen-sulfide gas detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190521 |
|
| WW01 | Invention patent application withdrawn after publication |