CN207081699U - A kind of gas chromatograph detected for C2H2 in insulating oil and SF6 - Google Patents
A kind of gas chromatograph detected for C2H2 in insulating oil and SF6 Download PDFInfo
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- CN207081699U CN207081699U CN201720149228.6U CN201720149228U CN207081699U CN 207081699 U CN207081699 U CN 207081699U CN 201720149228 U CN201720149228 U CN 201720149228U CN 207081699 U CN207081699 U CN 207081699U
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- chromatographic column
- flame ionization
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Abstract
The utility model discloses a kind of gas chromatograph detected for C2H2 in insulating oil and SF6, its process of gas path are as follows：Carrier gas N2 sources connect with the inlet end of injection port, and the port of export of injection port connects the first flame ionization ditector by the first chromatographic column；The port of export of injection port also connects the inlet end of three-way magnetic valve, and the outlet side connection air of three-way magnetic valve, its another outlet side is sequentially connected the second chromatographic column, thermal conductivity detector (TCD), nickel accelerant catalyst converter and the second flame ionization ditector；Carrier gas N2 sources are also connected by the 3rd chromatographic column with thermal conductivity detector (TCD), and hydrogen source and air-source are connected with the first and second flame ionization ditectors.The utility model effectively prevent the damage to nickel accelerant catalyst converter when C2H2 is analyzed in SF6, can not only be carried out Dissolved Gases in Insulating Oil analysis, C2H2 in SF6 can also be analyzed by the air inlet in injection port connection three-way magnetic valve.
Description
Technical field
It the utility model is related to gas chromatograph, and in particular to a kind of gas phase detected for C2H2 in insulating oil and SF6
Chromatograph.
Background technology
SF6 gases have good electrical insulation properties and excellent arc extinction performance, and its electric strength is under same pressure
2.5 times of nitrogen, breakdown voltage are 2.5 times of air, and arc extinguishing ability is 100 times of air, are that one kind is better than air and oil
Between super-pressure insulating dielectric materials of new generation.Power industry is used using its very high dielectric strength and good arc performance of going out
Make the insulating materials of primary cut-out, high-power transformer, high-tension cable and gas.Application of the SF6 gases on electrical equipment
It is more and more extensive.According to right《DC voltage divider failure point in Burner zone-Shanghai ± 800KV extra-high voltage direct-current transmission engineerings
Analysis》Research, occur overvoltage disturbance divider gas analysis result contain a certain amount of acetylene.Therefore, analyze
C2H2 gas contents are the effective means for judging divider failure in SF6 gas componants in divider.
Power industry is typically provided with C2H2 gases in gas chromatograph detection insulating oil at present, but due to SF6 gases
Nickel accelerant catalyst converter can be made to be poisoned, so C2H2 gases in SF6 gases can not be detected directly
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of gas chromatograph detected for C2H2 in insulating oil and SF6,
Both dissolved in insulating oil gas chromatographic analysis can be carried out, C2H2 gas contents in SF6 gases can be tested and analyzed again, a machine
It is multi-purpose, reduce analysis cost.
To achieve these goals, the utility model adopts the technical scheme that：
A kind of gas chromatograph detected for C2H2 in insulating oil and SF6, its process of gas path include the first chromatographic column, the
One flame ionization ditector, three-way magnetic valve, the second chromatographic column, the 3rd chromatographic column, thermal conductivity detector (TCD), nickel accelerant catalysis
Device, the second flame ionization ditector and carrier gas N2 sources, and hydrogen source and air-source, wherein：
The carrier gas N2 sources connect with the inlet end of injection port, and the port of export of injection port connects first by the first chromatographic column
Flame ionization ditector；
The port of export of the injection port also connects the inlet end of three-way magnetic valve, and the outlet side connection of three-way magnetic valve is big
Gas, its another outlet side are sequentially connected the second chromatographic column, thermal conductivity detector (TCD), nickel accelerant catalyst converter and the second hydrogen flameionization inspection
Survey device；
The carrier gas N2 sources are also connected by the 3rd chromatographic column with thermal conductivity detector (TCD), and the hydrogen source and air-source are with
One flame ionization ditector and the connection of the second flame ionization ditector.
The sample size of the injection port is 1ml.
The carrier of the first described chromatographic column is TDX-502, and the carrier of the second chromatographic column is GDX-101 and TDX-502,
The carrier of 3rd chromatographic column is quartz sand.
The first described chromatographic column is used to separate C1-C2 components, is detected by the first flame ionization ditector, institute
The second chromatographic column stated is used to separate H2, CO, CO2, and H2 is detected by thermal conductivity detector (TCD), and CO, CO2 are through nickel accelerant converter
Detected after being converted into CH4 by the second flame ionization ditector.
Compared with prior art, the beneficial effects of the utility model are：
The utility model utilizes electricity and power-off on three-way magnetic valve by the air inlet in injection port connection three-way magnetic valve
Sense channels different Shi Liantong, the damage to nickel accelerant catalyst converter when C2H2 is analyzed in SF6 is effectively prevent, can not only be entered
Row Dissolved Gases in Insulating Oil is analyzed, and C2H2 in SF6 can also be analyzed；Optimize C2H2 gas chromatographs in SF6 gases
Analysis process, also Dissolved Gases in Insulating Oil chromatography flow is optimized.
Brief description of the drawings
Fig. 1 is a kind of process of gas path of the gas chromatograph detected for C2H2 in insulating oil and SF6 of the utility model
Structural representation；
CH4, C2H4, C2H6, C2H2's goes out when Fig. 2 is used for Dissolved Gases in Insulating Oil detection and analysis for the utility model
Peak spectrogram；
Fig. 3 is the appearance spectrogram that the utility model is used for CO, CO2 when Dissolved Gases in Insulating Oil tests and analyzes；
Fig. 4 is the appearance spectrogram that the utility model is used for H2 when Dissolved Gases in Insulating Oil tests and analyzes；
Fig. 5 is appearance spectrogram when the utility model is used for C2H2 detection and analysis in SF6.
Description of reference numerals：1st, injection port；2nd, the first chromatographic column；3rd, the first flame ionization ditector；4th, three it is powered
Magnet valve；5th, the second chromatographic column；6th, the 3rd chromatographic column；7th, thermal conductivity detector (TCD)；8th, nickel accelerant catalyst converter；9th, the second hydrogen flameionization
Detector.
Embodiment
The utility model is further described with reference to embodiment.
It refer to shown in Fig. 1, a kind of gas chromatograph detected for C2H2 in insulating oil and SF6, its process of gas path bag
Include the first chromatographic column 2, the first flame ionization ditector 3, three-way magnetic valve 4, the second chromatographic column 5, the 3rd chromatographic column 6, heat
Lead detector 7, nickel accelerant catalyst converter 8, the second flame ionization ditector 9 and carrier gas N2Source, and hydrogen source and air-source,
Wherein：
The carrier gas N2Source is connected with the inlet end of injection port 1, and the port of export of injection port 1 is connected by the first chromatographic column 2
First flame ionization ditector 3；The port of export of the injection port 1 also connects the inlet end of three-way magnetic valve 4, and three are powered
The outlet side connection air of magnet valve 4, its another outlet side is sequentially connected the second chromatographic column 5, thermal conductivity detector (TCD) 7, nickel accelerant and urged
Change the flame ionization ditector 9 of device 8 and second；The carrier gas N2Source is also connected by the 3rd chromatographic column 6 with thermal conductivity detector (TCD) 7
It is logical,
And it is nitrogen that the utility model, which is used for carrier gas used in the multifunctional gas chromatograph of C2H2 detections in insulating oil and SF6,
Gas, auxiliary gas used is hydrogen, air.The hydrogen source and air-source with the first flame ionization ditector 3 and second
Flame ionization ditector 9 connects.
As the presently preferred embodiments, the sample size of the injection port 1 is 1ml, and the carrier of the first described chromatographic column is TDX-
502, the carrier of the second chromatographic column is GDX-101 and TDX-502, and the carrier of the 3rd chromatographic column is quartz sand.
The first described chromatographic column is used to separate C1-C2 components, is detected by the first flame ionization ditector, institute
The second chromatographic column stated is used to separate H2, CO, CO2, and H2 is detected by thermal conductivity detector (TCD), and CO, CO2 are through nickel accelerant converter
Detected after being converted into CH4 by the second flame ionization ditector.
Specific process of gas path is analyzed as follows：Carrier gas N2Source is through 1 latter point of two-way of injection port, all the way after the first chromatographic column 2
To the first flame ionization ditector 3, the first chromatographic column be used to insulate oil analysis when the separation of C1-C2 components and SF6 in C2H2
Separation, the first flame ionization ditector are used for the detection of C1-C2 components；
Another way is diverted to three-way magnetic valve 4, when for insulate oil analysis when, three-way magnetic valve 4 powers off, another after shunting
All the way to the second chromatographic column 5 after three-way magnetic valve 4, and successively by the measuring arm of thermal conductivity detector (TCD) 7, nickel accelerant catalyst converter 8, the
Two flame ionization ditectors 9, wherein the second chromatographic column be used for insulate oil analysis when H2, CO, CO2 separation, separate
H2 detected by thermal conductivity detector (TCD) 7, CO, the CO2 separated through nickel accelerant catalyst converter 8 be catalytically conveted to CH4 by the second hydrogen fire
Flame ionization detector 9 detects；When for carrying out C2H2 analyses in SF6, electricity, injection port 1 and air on three-way magnetic valve 4
Connection, the another way after shunting are drained after three-way magnetic valve 4.
A kind of operation principle of the gas chromatograph detected for C2H2 in insulating oil and SF6 of the utility model is as follows：
When being analyzed for Dissolved Gases in Insulating Oil, shunted after the sample introduction of injection port 1, first chromatographic column 2 of route is right
CH4, C2H4, C2H6, C2H2 are separated, and CH4, C2H4, C2H6, the C2H2 separated is examined by the first hydrogen flameionization
Device 3 is surveyed to be detected；Now, three-way magnetic valve 4 is in off-position, and the chromatographic column 5 of injection port 1 and second passes through three-way magnetic valve
4 connections, the another way distributed after the sample introduction of injection port 1 is separated by the second chromatographic column 5 to H2, CO, CO2, wherein separating
H2 out is detected by thermal conductivity detector (TCD) 7, and CO, the CO2 separated is converted into after CH4 by by nickel accelerant catalyst converter 8
Two flame ionization ditectors 9 are detected.Appearance spectrogram such as Fig. 2-4 institutes when Dissolved Gases in Insulating Oil tests and analyzes
Show.
When C2H2 is detected in for SF6, shunted after the sample introduction of injection port 1, first chromatographic column 2 of route is to C2H2 in SF6
Separated, the C2H2 separated is detected by the first flame ionization ditector 3；Now, on three-way magnetic valve 4
Electricity, the another way distributed after the sample introduction of injection port 1 are communicated with air by three-way magnetic valve 4, are drained.C2H2 in SF6
Appearance spectrogram during detection and analysis is as shown in Figure 5.
Above-listed detailed description is illustrating for the utility model possible embodiments, and the embodiment simultaneously is not used to limit
The scope of the claims of the present utility model, all equivalence enforcements or change without departing from carried out by the utility model, it is intended to be limited solely by this case
In the scope of the claims.
Claims (2)
1. a kind of gas chromatograph detected for C2H2 in insulating oil and SF6, it is characterised in that its process of gas path includes first
Chromatographic column (2), the first flame ionization ditector (3), three-way magnetic valve (4), the second chromatographic column (5), the 3rd chromatographic column
(6), thermal conductivity detector (TCD) (7), nickel accelerant catalyst converter (8), the second flame ionization ditector (9) and carrier gas N2Source, Yi Jiqing
Source of the gas and air-source, wherein：
The carrier gas N2Source is connected with the inlet end of injection port (1), and the port of export of injection port (1) is connected by the first chromatographic column (2)
First flame ionization ditector (3)；
The port of export of the injection port (1) also connects the inlet end of three-way magnetic valve (4), an outlet side of three-way magnetic valve (4)
Air is connected, its another outlet side is sequentially connected the second chromatographic column (5), thermal conductivity detector (TCD) (7), nickel accelerant catalyst converter (8) and the
Two flame ionization ditectors (9)；
The carrier gas N2Source is also connected by the 3rd chromatographic column (6) with thermal conductivity detector (TCD) (7), the hydrogen source and air-source with
First flame ionization ditector (3) connects, the hydrogen source and air-source also with the second flame ionization ditector
(9) connect.
2. the gas chromatograph according to claim 1 detected for C2H2 in insulating oil and SF6, it is characterised in that institute
The sample size for stating injection port (1) is 1ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720149228.6U CN207081699U (en) | 2017-02-20 | 2017-02-20 | A kind of gas chromatograph detected for C2H2 in insulating oil and SF6 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720149228.6U CN207081699U (en) | 2017-02-20 | 2017-02-20 | A kind of gas chromatograph detected for C2H2 in insulating oil and SF6 |
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| CN207081699U true CN207081699U (en) | 2018-03-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850013A (en) * | 2019-11-13 | 2020-02-28 | 国网福建省电力有限公司 | Chromatograph column case and thermal conductivity detector integration module |
| CN112595790A (en) * | 2020-12-24 | 2021-04-02 | 中国科学院上海微系统与信息技术研究所 | Gas chromatography device based on six-way diaphragm valve automatic sample injection and detection method |
-
2017
- 2017-02-20 CN CN201720149228.6U patent/CN207081699U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850013A (en) * | 2019-11-13 | 2020-02-28 | 国网福建省电力有限公司 | Chromatograph column case and thermal conductivity detector integration module |
| CN110850013B (en) * | 2019-11-13 | 2022-03-08 | 国网福建省电力有限公司 | Chromatograph column case and thermal conductivity detector integration module |
| CN112595790A (en) * | 2020-12-24 | 2021-04-02 | 中国科学院上海微系统与信息技术研究所 | Gas chromatography device based on six-way diaphragm valve automatic sample injection and detection method |
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