CN206460005U - The auto power on device of transformer oil gas chromatographic detection instrument - Google Patents
The auto power on device of transformer oil gas chromatographic detection instrument Download PDFInfo
- Publication number
- CN206460005U CN206460005U CN201720047479.3U CN201720047479U CN206460005U CN 206460005 U CN206460005 U CN 206460005U CN 201720047479 U CN201720047479 U CN 201720047479U CN 206460005 U CN206460005 U CN 206460005U
- Authority
- CN
- China
- Prior art keywords
- gas
- pressure
- bomb
- valve
- carrier
- 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.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 239000007789 gas Substances 0.000 claims abstract description 220
- 239000012159 carrier gas Substances 0.000 claims abstract description 60
- 239000002737 fuel gas Substances 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 230000004907 flux Effects 0.000 claims description 10
- 239000000567 combustion gas Substances 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 8
- 239000001257 hydrogen Substances 0.000 description 18
- 229910052739 hydrogen Inorganic materials 0.000 description 18
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 150000002431 hydrogen Chemical class 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000001569 carbon dioxide Substances 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 4
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 4
- 238000004587 chromatography analysis Methods 0.000 description 3
- 230000003862 health status Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910001872 inorganic gas Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model is related to a kind of auto power on device of transformer oil gas chromatographic detection instrument, including gas chromatographic detection instrument, controller, alarm, high pressure carrier gas gas bomb, high-pressure gas gas bomb, the combustion-supporting gas gas bomb of high pressure, injection port is provided with gas chromatographic detection instrument, carrier gas air inlet, gas inlet, help gas inlet, high pressure carrier gas gas bomb is connected through gas-carrier pipeline with carrier gas air inlet, high-pressure gas gas bomb is connected through fuel gas pipeline with gas inlet, the combustion-supporting gas gas bomb of high pressure is through combustion-supporting air pipe with helping gas inlet to be connected, high pressure carrier gas gas bomb, high-pressure gas gas bomb, gas bomb main valve is provided with the gas outlet of the combustion-supporting gas gas bomb of high pressure, pressure-reducing valve, gas chromatographic detection instrument, alarm is electrically connected with controller, the utility model is avoided that infringement and the test error for being conventionally used to that transformer oil detection gas chromatograph start is likely to result in, ensure gas chromatograph safe handling and test data it is accurate.
Description
Technical field
The utility model is related to a kind of auto power on device of transformer oil gas chromatographic detection instrument.
Background technology
In power system power high voltage Transformer, when occurring overheat and discharge fault inside power transformer,
The heat that failure is produced can thermally decompose transformer oil around trouble point and produce a variety of low molecular hydrocarbon gases and hydrogen with
And a variety of inorganic gas such as carbon monoxide, carbon dioxide, nitrogen, oxygen, it is therein：Methane, ethane, ethene, acetylene, hydrogen,
This 7 kinds of characteristic gas such as carbon monoxide, carbon dioxide, which can reflect, occurs overheat and the situation of discharge fault inside power transformer,
Therefore detect the content and proportion of composing that dissolve 7 kinds of characteristic gas of the above in operating transformer oil with regard to energy by gas chromatograph
The indirect health status for understanding power transformer, so as to take measures in advance, to ensure the safe operation of power transformer.With
In detection Gases Dissolved in Transformer Oil gas chromatograph start heater interior element before, it is necessary to first open work in order
Source of the gas, and air-flow need to be controlled in a suitable range of flow, in addition it is also necessary to it could open gas chromatograph after certain stabilization time
Power supply.The gas chromatograph for being used to detect Gases Dissolved in Transformer Oil now used is without the automatic protection before chromatograph start
Open source of the gas after, then Auto Power On device, this, which is likely to result in not go into operation, makees source of the gas and first drives chromatograph, causes chromatograph thermal conductivity
Detector thermal conductivity silk blow or cause it is chromatographic it is other damage, or even the major accident that burns is caused, if opened out of order
Open work source of the gas, then can cause the result of test data severe deviations, for example, first open hydrogen, after hold carrier gas and can be caused by hydrogen
First it is trapped in the dead angle of injector, when starting sample introduction, sample gas can enter thermal conductivity detector (TCD) together with hydrogen, so as to make
Into the error of the serious superelevation of sample hydrogen content.
The content of the invention
There is provided a kind of transformer oil gas chromatographic detection instrument for above weak point for the purpose of this utility model
Auto power on device.
The utility model solves the scheme that is used of technical problem：A kind of transformer oil gas chromatographic detection instrument it is automatic
Opening device, including gas chromatographic detection instrument, controller, alarm, high pressure carrier gas gas bomb, high-pressure gas gas bomb, high pressure
Injection port, carrier gas air inlet, gas inlet, combustion-supporting gas are provided with combustion-supporting gas gas bomb, the gas chromatographic detection instrument to enter
Gas port, the high pressure carrier gas gas bomb is connected through gas-carrier pipeline with carrier gas air inlet, and high-pressure gas gas bomb is through fuel gas pipeline
Be connected with gas inlet, the combustion-supporting gas gas bomb of high pressure through combustion-supporting air pipe with helping gas inlet to be connected, the high pressure
Gas bomb main valve is disposed with the gas outlet of the combustion-supporting gas gas bomb of carrier gas gas bomb, high-pressure gas gas bomb, high pressure, subtracted
Pressure valve, the gas chromatographic detection instrument, alarm are electrically connected with controller.
Further, pressure-reducing valve, carrier gas magnetic valve, carrier gas safety valve, electric contact are disposed with the gas-carrier pipeline
Carrier gas flux meter, carrier gas magnetic valve is connected with pressure-reducing valve low-pressure side, pressure-reducing valve high-pressure side connection gas bomb main valve, fuel gas pipeline
On be disposed with pressure-reducing valve, gas electromagnetic valve, safety valves for gas, electric contact gas meter, gas electromagnetic valve and pressure-reducing valve
Low-pressure side is connected, pressure-reducing valve high-pressure side connection gas bomb main valve, and pressure-reducing valve, combustion-supporting pneumoelectric are disposed with combustion-supporting air pipe
Magnet valve, safety valves for gas, electric contact combustion air current gauge are helped, help gas electromagnetic valve to be connected with pressure-reducing valve low-pressure side, pressure-reducing valve
High-pressure side connects gas bomb main valve, the carrier gas magnetic valve, electric contact carrier gas flux meter, carrier gas safety valve, gas electromagnetic valve, electricity
Contact gas meter, safety valves for gas, help gas electromagnetic valve, electric contact combustion air current gauge, help safety valves for gas with control
Device processed is electrically connected with.
Further, the controller is PLC.
Further, the gas chromatographic detection instrument, controller, alarm are set on the table.
Compared with prior art, the utility model has following beneficial effect：It can effectively prevent from now widely using without automatic
The transformer oil gas chromatographic detection instrument of opening device in use, due to staff's error, is carrying out transformer oil gas phase
In chromatography test, do not go into operation first and make source of the gas and directly open gas chromatograph and cause chromatograph thermal conductivity detector thermal conductivity silk to burn
It is disconnected or cause it is chromatographic it is other damage, or even cause the major accident that burns, also prevent due to staff's error, do not have
Open work source of the gas in order, cause the result of test data severe deviations, for example, first open hydrogen, after hold carrier gas and can be caused by
Hydrogen is first trapped in the dead angle of injector, when starting sample introduction, and sample gas can enter thermal conductivity detector (TCD) together with hydrogen, from
And the error of the serious superelevation of sample hydrogen content is caused, the utility model can avoid the above to be conventionally used to transformer oil detection gas completely
The chromatography infringement that is likely to result in of start and test error, the safe handling of powerful guarantee gas chromatograph and test data
Truly, accuracy.
Brief description of the drawings
The utility model patent is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the real structural representation of the utility model；
Fig. 2 is to open carrier gas schematic flow sheet；
Fig. 3 is carrier gas, combustion-supporting gas, combustion gas unlatching schematic flow sheet；
Fig. 4 is to automatically control operation principle block diagram.
In figure：
1- gas chromatographic detection instrument；2- injection ports；3- controllers；4- high pressure carrier gas gas bombs；5- gas bomb main valves；6- subtracts
Pressure valve；7- carrier gas magnetic valves；8- carrier gas safety valves；9- electric contact carrier gas flux meters；10- gas-carrier pipelines；11- carrier gas air inlets；
12- high-pressure gas gas bombs；13- gas electromagnetic valves；14- safety valves for gas；15- electric contact gas meters；16- Gas Pipes
Road；17- gas inlets；The combustion-supporting gas gas bomb of 18- high pressures；19- helps gas electromagnetic valve；20- helps safety valves for gas；21- electricity connects
Point combustion air current gauge；The combustion-supporting air pipes of 22-；23- helps gas inlet；24- alarms；25- workbench.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and detailed description.
As Figure 1-4, a kind of auto power on device of transformer oil gas chromatographic detection instrument, including gas chromatographic detection
The combustion-supporting gas gas bomb of instrument, controller, alarm, high pressure carrier gas gas bomb, high-pressure gas gas bomb, high pressure, gas chromatographic detection
Instrument is used to analyze this 7 kinds of the hydrogen dissolved in transformer oil, methane, ethane, ethene, acetylene, carbon monoxide, carbon dioxide etc.
Characteristic gas, to judge the health status or the quality of transformer oil of power transformer in operation, the gas-chromatography inspection
Survey and injection port, carrier gas air inlet are provided with instrument, gas inlet, gas inlet is helped, the high pressure carrier gas gas bomb is through carrying
Air pipe is connected with carrier gas air inlet, and high-pressure gas gas bomb is connected through fuel gas pipeline with gas inlet, and high pressure is combustion-supporting
Gas gas bomb through combustion-supporting air pipe with helping gas inlet to be connected, the high pressure carrier gas gas bomb, high-pressure gas gas bomb, height
Gas bomb main valve, pressure-reducing valve, the gas chromatographic detection instrument, alarm are disposed with the gas outlet for pressing combustion-supporting gas gas bomb
Device is electrically connected with controller.
In the present embodiment, gas chromatographic detection instrument includes injector, chromatographic column, detector, data processor, electrical heating
Device, detector include thermal conductivity detector (TCD) and hydrogen flame detector both, thermal conductivity detector (TCD) detection hydrogen component, hydrogen flame detection
Device gas component, air such as detection methane, ethane, ethene, acetylene, carbon monoxide, carbon dioxide after hydrogen flame igniting is normal
The hydrogen in hydrogen flame detector is helped sufficiently to burn as combustion-supporting gas, in chromatogram detector start thermal-stable, each work
As element reach setting heating-up temperature and working condition after, by through deviate from transformer oil in dissolved hydrogen, methane, ethane,
The mixing gas sample of the characteristic gas such as ethene, acetylene, carbon monoxide, carbon dioxide, adds chromatographic column, in chromatographic column through injector
Promote the characteristic gas of the above to isolate in the chromatography column respectively by the carrier gas entered in addition, and successively enter inspection by separation sequence
Survey device and detected that the result of detection is analyzed by data processor, with the oil sample analyzed tested by judging it is whether qualified,
Whether transformer station high-voltage side bus is normal, whether health status is good etc., should in time be taken measures Ru unqualified, prevent power high voltage transformation
Device failure continues to develop, and especially prevents transformer from may occur the serious pernicious failure of blast etc..
In the present embodiment, pressure-reducing valve, carrier gas magnetic valve, carrier gas safety valve, electricity are disposed with the gas-carrier pipeline
Contact carrier gas flux meter, carrier gas magnetic valve is connected with pressure-reducing valve low-pressure side, pressure-reducing valve high-pressure side connection gas bomb main valve, combustion gas
Pressure-reducing valve, gas electromagnetic valve, safety valves for gas, electric contact gas meter are disposed with pipeline, gas electromagnetic valve is with subtracting
Pressure valve low-pressure side is connected, pressure-reducing valve high-pressure side connection gas bomb main valve, is disposed with pressure-reducing valve on combustion-supporting air pipe, combustion-supporting
Pneumoelectric magnet valve, safety valves for gas, electric contact combustion air current gauge are helped, help gas electromagnetic valve to be connected with pressure-reducing valve low-pressure side, subtract
Pressure valve high-pressure side connects gas bomb main valve, the carrier gas magnetic valve, electric contact carrier gas flux meter, carrier gas safety valve, combustion gas electromagnetism
Valve, electric contact gas meter, safety valves for gas, help gas electromagnetic valve, electric contact combustion air current gauge, help safety valves for gas equal
It is electrically connected with controller.
In the present embodiment, the controller is PLC, can also make other microprocessors, controller can be controlled respectively
Each air-channel system and gas-chromatography detector are by safe and reliable Auto Power On the step of regulation, the output end difference of controller
The power on switch of gas chromatographic detection instrument is electrically connected at, carrier gas magnetic valve, gas electromagnetic valve, combustion-supporting gas is electrically connected at
The input of magnetic valve, is electrically connected at electric contact carrier gas flux meter, electric contact gas meter, electric contact combustion air current gauge
Input, and be electrically connected at the input of alarm.
In the present embodiment, the gas chromatographic detection instrument, controller, alarm are set on the table.
Step of starting shooting is as follows：
1）Programming Auto Power On program is set in the controller in advance；
2）It is normally open to keep each high-pressure gas cylinder main valve and each pressure-reducing valve, adjusts each pressure-reducing valve low-pressure side
Pressure to suitable output pressure；
3）Controller first turns on carrier gas magnetic valve, opens electric contact carrier gas flux meter and is carried by the flow circulation of setting
Gas；
4）Controller, which is opened, helps gas electromagnetic valve, opens electric contact combustion air current gauge and combustion-supporting by the flow circulation of setting
Gas；
5）Controller opens gas electromagnetic valve, opens electric contact gas meter and by the flow circulation combustion gas of setting；
6）After above step is fully completed, controller opens chromatogram detector after 5 minutes；
7）Alarm buzzing is indicated after the start of chromatogram detector, reminds staff's chromatogram detector start work to complete；
8）When each pressure exceedes carrier gas safety valve, safety valves for gas, helps the safe pressure setting value of safety valves for gas, carry
Gas safety valve, safety valves for gas, safety valves for gas is helped to automatically turn on pressure release, when pressure is reduced to below safe pressure setting value
When, carrier gas safety valve, safety valves for gas, help safety valves for gas to close automatically, stop pressure release, to ensure the safe work of air-channel system
Make.
It is pre-designed and programs first to open carrier gas magnetic valve, opens and adjust automatically electric contact carrier gas flux meter is to suitable
Measure at interflow；Open successively again and help gas electromagnetic valve, open and adjust automatically electric contact combustion air current gauge is to suitable flow；Open
Gas electromagnetic valve, is opened and adjust automatically electric contact gas meter is to suitable flow；After 5 minutes, chromatograph is finally opened, together
Alarm device buzzing prompting start is completed.
In summary, the utility model provide a kind of transformer oil gas chromatographic detection instrument auto power on device and open
Machine method, by being pre-designed the self-con-tained unit of programming and design and installation, can avoid the above to be conventionally used to transformer oil inspection completely
Survey infringement and test error that gas chromatograph start is likely to result in, the safe handling of powerful guarantee gas chromatograph and experiment number
According to true, accuracy.
Above-listed preferred embodiment, the purpose of this utility model, technical scheme and advantage are further described,
It should be understood that and the foregoing is only preferred embodiment of the present utility model, it is all not to limit the utility model
Within spirit of the present utility model and principle, any modification, equivalent substitution and improvements made etc. should be included in this practicality
Within new protection domain.
Claims (4)
1. a kind of auto power on device of transformer oil gas chromatographic detection instrument, it is characterised in that：Including gas chromatographic detection instrument,
The combustion-supporting gas gas bomb of controller, alarm, high pressure carrier gas gas bomb, high-pressure gas gas bomb, high pressure, the gas chromatographic detection
Injection port, carrier gas air inlet are provided with instrument, gas inlet, gas inlet is helped, the high pressure carrier gas gas bomb is through carrier gas
Pipeline is connected with carrier gas air inlet, and high-pressure gas gas bomb is connected through fuel gas pipeline with gas inlet, the combustion-supporting gas of high pressure
Gas bomb through combustion-supporting air pipe with helping gas inlet to be connected, the high pressure carrier gas gas bomb, high-pressure gas gas bomb, high pressure
Gas bomb main valve, pressure-reducing valve, the gas chromatographic detection instrument, alarm are disposed with the gas outlet of combustion-supporting gas gas bomb
It is electrically connected with controller.
2. the auto power on device of transformer oil gas chromatographic detection instrument according to claim 1, it is characterised in that：It is described
Pressure-reducing valve, carrier gas magnetic valve, carrier gas safety valve, electric contact carrier gas flux meter, carrier gas magnetic valve are disposed with gas-carrier pipeline
It is connected with pressure-reducing valve low-pressure side, pressure-reducing valve high-pressure side, which is connected, is disposed with pressure-reducing valve, combustion on gas bomb main valve, fuel gas pipeline
Pneumoelectric magnet valve, safety valves for gas, electric contact gas meter, gas electromagnetic valve are connected with pressure-reducing valve low-pressure side, and pressure-reducing valve is high
Press and be disposed with pressure-reducing valve on side connection gas bomb main valve, combustion-supporting air pipe, help gas electromagnetic valve, help safety valves for gas, electricity
Contact combustion air current gauge, helps gas electromagnetic valve to be connected with pressure-reducing valve low-pressure side, pressure-reducing valve high-pressure side connection gas bomb main valve,
The carrier gas magnetic valve, electric contact carrier gas flux meter, carrier gas safety valve, gas electromagnetic valve, electric contact gas meter, combustion gas peace
Full valve, help gas electromagnetic valve, electric contact combustion air current gauge, help safety valves for gas with controller be electrically connected with.
3. the auto power on device of transformer oil gas chromatographic detection instrument according to claim 2, it is characterised in that：It is described
Controller is PLC.
4. the auto power on device of transformer oil gas chromatographic detection instrument according to claim 3, it is characterised in that：It is described
Gas chromatographic detection instrument, controller, alarm are set on the table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720047479.3U CN206460005U (en) | 2017-01-16 | 2017-01-16 | The auto power on device of transformer oil gas chromatographic detection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720047479.3U CN206460005U (en) | 2017-01-16 | 2017-01-16 | The auto power on device of transformer oil gas chromatographic detection instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206460005U true CN206460005U (en) | 2017-09-01 |
Family
ID=59696146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720047479.3U Active CN206460005U (en) | 2017-01-16 | 2017-01-16 | The auto power on device of transformer oil gas chromatographic detection instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206460005U (en) |
-
2017
- 2017-01-16 CN CN201720047479.3U patent/CN206460005U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106645498A (en) | Automatic starting device and method for gas chromatographic detector for transformer oil | |
| CN204832085U (en) | Height warm purgation combustible gas explosion characteristic testing experiment device | |
| CN104749217B (en) | Flammable gas explosion minimum ignition energy tests system and method under ultralow temperature | |
| CN101975717B (en) | Combustible gas explosion limit test system in non-standard state | |
| CN107449728A (en) | A kind of HTHP supercritical carbon dioxide homogeneous corrosion pilot system | |
| CN102937604A (en) | Explosion limit determining device and determining method | |
| CN109991029A (en) | Mineral electrical apparatus explosion insulation performance test macro | |
| CN111811894A (en) | Gas on-line detection method and device in power transformer gas relay | |
| CN201837624U (en) | Combustible gas explosion limit testing system under non-standard states | |
| CN103439422A (en) | Detection method for field oil-gas online monitoring system | |
| Ning et al. | Explosion characteristics of coal gas under various initial temperatures and pressures | |
| CN112415052A (en) | Experimental simulation device and method for high-temperature oxidation characteristic and ignition/explosion gas of coal | |
| CN110779966A (en) | Light gas alarm characteristic gas detection method and device | |
| CN206460005U (en) | The auto power on device of transformer oil gas chromatographic detection instrument | |
| CN104634898B (en) | Test method and the device of transformer oil aerogenesis trend is evaluated under electric heating mixing field | |
| CN104931529A (en) | Test method of safe critical partial pressure of vinyl acetylene gas | |
| CN209182323U (en) | Flammable gas explosion simulation and the datonation-inhibition experiment porch of water mist under a kind of high/low temperature | |
| CN103672904A (en) | Gas line of combustor | |
| CN111175434A (en) | Experimental device for combustible gas combustion characteristic integrated test | |
| CN203881698U (en) | Device for detecting burning resistance and explosion resistance of flame arrester | |
| CN210604532U (en) | Chromatographic detection device | |
| CN201965108U (en) | Ignition effect tester for dangerous liquid articles under closed condition | |
| CN207457110U (en) | A kind of quick thermal fatigue test apparatus of engine cylinder cap | |
| CN210125179U (en) | Pulse type cyclohexane gas heat generator for detecting leakage rate of iodine adsorber | |
| CN104931672B (en) | The method of testing of allylene gas safety critical partial pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |