CN109521129A - A kind of gas-chromatography carrier gas switching application method - Google Patents
A kind of gas-chromatography carrier gas switching application method Download PDFInfo
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- CN109521129A CN109521129A CN201811501669.3A CN201811501669A CN109521129A CN 109521129 A CN109521129 A CN 109521129A CN 201811501669 A CN201811501669 A CN 201811501669A CN 109521129 A CN109521129 A CN 109521129A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
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- G01N30/28—Control of physical parameters of the fluid carrier
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Abstract
The present invention relates to vapor detection technical field, specifically a kind of gas-chromatography carrier gas switches application method, carries out gas circuit transformation, single gas path analysis gas with various is realized using carrier gases switching technique, by the switching to valve, to realize the switching to carrier gas, when with N2, it can be achieved that H when gas is carrier gas2Detection, when with H2, it can be achieved that O when gas is carrier gas2(AR)、N2、CH4, CO detection, switch relative to gas source, it is high in chromatography air inlet switching efficiency, it is easily transformed and flexibility is stronger, TCD detector is most popular detector, and handoff technique has biggish spreading range, and carrier gas is switched to N2, H2 switching, heated filament is not damaged, therefore not having to closing detector current can directly be switched over 1 valve 2 of valve, and the analysis method that parameter is arranged according to different carrier gas is recalled after switching, simple and fast, it is easy to use, save cost.
Description
Technical field
The present invention relates to vapor detection technical field, specifically a kind of gas-chromatography carrier gas switches application method.
Background technique
Gas-chromatography is widely applied in chemical industry, and separate unit chromatography single-flow-path uses single carrier gas control mode to match to be conventional
It sets.The effect of carrier gas is to enter chromatographic column together with certain flow velocity carrier band gaseous sample or the sample gas after gasifying to carry out
Separation, then each component after being separated are loaded into detector and detect.N2, H2, AR are three kinds of carrier gas being often used, gas phase
Chromatography is widely used in various industries but as in analysis.
According to market survey, the double gas circuits of separate unit, configure double six direction changeover valves, two 13-X chromatographic column cities at double TCD detectors
Field price is average between ten thousand yuans of 30-60, and price is relatively expensive for opposite other instruments, and the present invention is to save
Gas circuit transformation is carried out for the purpose of cost.
It is respectively carrier gas with 13-X column using N2, N2 using list gas path analysis gas with various can be achieved after carrier gases switching technique
Illustrate correctional effect for separation H2, O2 (AR), N2, CH4, CO.
207601029 U of Chinese patent CN discloses a kind of gas chromatograph carrier gas device, including high pressure bottle body, high pressure
Bottle body upper and lower ends are equipped with opening；Opening is equipped with air valve, and opening inner side is equipped with wall extension, is equipped with card slot, air valve in wall extension
It is connected in card slot；Air valve includes valve chamber, valve body, valve rod, valve wheel, valve plate, is equipped with stomata below valve chamber, valve plate is covered in stomata
Lower section, opening are surrounded by slot, are equipped with spring in slot and are connected with valve plate；Valve rod includes the first valve rod and the second valve rod and is total to
With being placed in valve chamber, it is connected above the first valve rod with valve wheel, the first valve rod lower section is fixedly connected with pushing block, and pushing block is resisted against the
Above two valve rods, the second valve rod lower end is fixedly connected with valve plate, and valve chamber side wall is equipped with gas outlet；When the gas in high-pressure cylinder makes
Again when filling other gases after being finished, first gas washing behaviour will can be carried out to the gas in high-pressure cylinder to qi of chong channel ascending adversely body
Make, from an opening air inlet again from another outlet that is open, the carrier gas of last available high-purity.
Invention carrier gas switching is inconvenient, and switching efficiency is low, inflexible.
Summary of the invention
The purpose of the present invention is to provide a kind of gas-chromatography carrier gas to switch application method, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the invention provides the following technical scheme:
A kind of gas-chromatography carrier gas switching application method, carries out gas circuit transformation, realizes single gas circuit using carrier gases switching technique
Gas with various is analyzed, by the switching to valve, to realize the switching to carrier gas, when with N2, it can be achieved that H when gas is carrier gas2Inspection
It surveys, when with H2, it can be achieved that O when gas is carrier gas2(AR)、N2、CH4, CO detection.
As a further solution of the present invention: when detection, chromatographic column post case temperature is 60~65 DEG C.
As a further solution of the present invention: when detection, detector temperature is 150~165 DEG C.
As a further solution of the present invention: when detection, 80~85mA of detector current.
As further scheme of the invention: the detector is TCD detector, and the chromatographic column is 13-X chromatography
Column.
Compared with prior art, the beneficial effects of the present invention are:
Switch relative to gas source, it is high in chromatography air inlet switching efficiency, it is easily transformed and flexibility is stronger, TCD detector is
Most popular detector, handoff technique have biggish spreading range, and carrier gas is switched to N2, H2 switching, does not have to heated filament
Damage, therefore can directly be switched over 1 valve 2 of valve without closing detector current, it recalls after switching and is arranged according to different carrier gas
The analysis method of parameter, it is simple and fast, it is easy to use, save cost.
Detailed description of the invention
Fig. 1 is the schematic diagram of gas circuit of the present invention transformation；
Fig. 2 is that H2 detects spectrogram；
Fig. 3 is O2 (AR), N2, CH4, CO detect spectrogram.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment 1:
Please refer to Fig. 1-3, a kind of gas-chromatography carrier gas switching application method, which is characterized in that carry out gas circuit transformation, use
Carrier gases switching technique realizes single gas path analysis gas with various, by the switching to valve, to realize the switching to carrier gas, when with N2
, it can be achieved that H when gas is carrier gas2Detection, when with H2, it can be achieved that O when gas is carrier gas2(AR)、N2、CH4, CO detection.
Detector used is TCD detector, and chromatographic column used is 13-X chromatographic column, and chromatographic column post case temperature is 62 DEG C, inspection
Surveying device temperature is 155 DEG C, detector current 84mA.
Embodiment 2:
Please refer to Fig. 1-3, a kind of gas-chromatography carrier gas switching application method, which is characterized in that carry out gas circuit transformation, use
Carrier gases switching technique realizes single gas path analysis gas with various, by the switching to valve, to realize the switching to carrier gas, when with N2
, it can be achieved that H when gas is carrier gas2Detection, when with H2, it can be achieved that O when gas is carrier gas2(AR)、N2、CH4, CO detection.
Detector used is TCD detector, and chromatographic column used is 13-X chromatographic column, and chromatographic column post case temperature is 60 DEG C, inspection
Surveying device temperature is 165 DEG C, detector current 85mA.
Embodiment 3:
Please refer to Fig. 1-3, a kind of gas-chromatography carrier gas switching application method, which is characterized in that carry out gas circuit transformation, use
Carrier gases switching technique realizes single gas path analysis gas with various, by the switching to valve, to realize the switching to carrier gas, when with N2
, it can be achieved that H when gas is carrier gas2Detection, when with H2, it can be achieved that O when gas is carrier gas2(AR)、N2、CH4, CO detection.
Detector used is TCD detector, and chromatographic column used is 13-X chromatographic column, and chromatographic column post case temperature is 60 DEG C, inspection
Surveying device temperature is 155 DEG C, detector current 82mA.
Embodiment 4:
Please refer to Fig. 1-3, a kind of gas-chromatography carrier gas switching application method, which is characterized in that carry out gas circuit transformation, use
Carrier gases switching technique realizes single gas path analysis gas with various, by the switching to valve, to realize the switching to carrier gas, when with N2
, it can be achieved that H when gas is carrier gas2Detection, when with H2, it can be achieved that O when gas is carrier gas2(AR)、N2、CH4, CO detection.
Detector used is TCD detector, and chromatographic column used is 13-X chromatographic column, and chromatographic column post case temperature is 60 DEG C, inspection
Surveying device temperature is 165 DEG C, detector current 80mA.
Embodiment 5:
Please refer to Fig. 1-3, a kind of gas-chromatography carrier gas switching application method, which is characterized in that carry out gas circuit transformation, use
Carrier gases switching technique realizes single gas path analysis gas with various, by the switching to valve, to realize the switching to carrier gas, when with N2
, it can be achieved that H when gas is carrier gas2Detection, when with H2, it can be achieved that O when gas is carrier gas2(AR)、N2、CH4, CO detection.
Detector used is TCD detector, and chromatographic column used is 13-X chromatographic column, and chromatographic column post case temperature is 65 DEG C, inspection
Surveying device temperature is 150 DEG C, detector current 85mA.
Embodiment 6:
Please refer to Fig. 1-3, a kind of gas-chromatography carrier gas switching application method, which is characterized in that carry out gas circuit transformation, use
Carrier gases switching technique realizes single gas path analysis gas with various, by the switching to valve, to realize the switching to carrier gas, when with N2
, it can be achieved that H when gas is carrier gas2Detection, when with H2, it can be achieved that O when gas is carrier gas2(AR)、N2、CH4, CO detection.
Detector used is TCD detector, and chromatographic column used is 13-X chromatographic column, and chromatographic column post case temperature is 60 DEG C, inspection
Surveying device temperature is 150 DEG C, detector current 80mA.
Embodiment 7:
Please refer to Fig. 1-3, a kind of gas-chromatography carrier gas switching application method, which is characterized in that carry out gas circuit transformation, use
Carrier gases switching technique realizes single gas path analysis gas with various, by the switching to valve, to realize the switching to carrier gas, when with N2
, it can be achieved that H when gas is carrier gas2Detection, when with H2, it can be achieved that O when gas is carrier gas2(AR)、N2、CH4, CO detection.
Detector used is TCD detector, and chromatographic column used is 13-X chromatographic column, and chromatographic column post case temperature is 61 DEG C, inspection
Surveying device temperature is 152 DEG C, detector current 84mA.
Embodiment 8:
Please refer to Fig. 1-3, a kind of gas-chromatography carrier gas switching application method, which is characterized in that carry out gas circuit transformation, use
Carrier gases switching technique realizes single gas path analysis gas with various, by the switching to valve, to realize the switching to carrier gas, when with N2
, it can be achieved that H when gas is carrier gas2Detection, when with H2, it can be achieved that O when gas is carrier gas2(AR)、N2、CH4, CO detection.
Detector used is TCD detector, and chromatographic column used is 13-X chromatographic column, and chromatographic column post case temperature is 65 DEG C, inspection
Surveying device temperature is 151 DEG C, detector current 85mA.
Embodiment 9:
Please refer to Fig. 1-3, a kind of gas-chromatography carrier gas switching application method, which is characterized in that carry out gas circuit transformation, use
Carrier gases switching technique realizes single gas path analysis gas with various, by the switching to valve, to realize the switching to carrier gas, when with N2
, it can be achieved that H when gas is carrier gas2Detection, when with H2, it can be achieved that O when gas is carrier gas2(AR)、N2、CH4, CO detection.
Detector used is TCD detector, and chromatographic column used is 13-X chromatographic column, and chromatographic column post case temperature is 65 DEG C, inspection
Surveying device temperature is 156 DEG C, detector current 81mA.
Embodiment 10:
Please refer to Fig. 1-3, a kind of gas-chromatography carrier gas switching application method, which is characterized in that carry out gas circuit transformation, use
Carrier gases switching technique realizes single gas path analysis gas with various, by the switching to valve, to realize the switching to carrier gas, when with N2
, it can be achieved that H when gas is carrier gas2Detection, when with H2, it can be achieved that O when gas is carrier gas2(AR)、N2、CH4, CO detection.
Detector used is TCD detector, and chromatographic column used is 13-X chromatographic column, and chromatographic column post case temperature is 63 DEG C, inspection
Surveying device temperature is 162 DEG C, detector current 85mA.
Embodiment 11:
Please refer to Fig. 1-3, a kind of gas-chromatography carrier gas switching application method, which is characterized in that carry out gas circuit transformation, use
Carrier gases switching technique realizes single gas path analysis gas with various, by the switching to valve, to realize the switching to carrier gas, when with N2
, it can be achieved that H when gas is carrier gas2Detection, when with H2, it can be achieved that O when gas is carrier gas2(AR)、N2、CH4, CO detection.
Detector used is TCD detector, and chromatographic column used is 13-X chromatographic column, and chromatographic column post case temperature is 60 DEG C, inspection
Surveying device temperature is 160 DEG C, detector current 82mA.
The working principle of the invention is:
Shimadzu gas-chromatography 1 is furnished with TCD detector；13-X chromatographic column；Various concentration H2、O2(AR)、N2、CH4, CO mark
Totally 4 bottles of gas；1/16 carrier gas access tube line number root；1/16 two-way valve 3 opens valve 1 and valve 3 using N2 gas as carrier gas after processing,
Close valve 2, it can be achieved that H2 detection；Using H2 gas as carrier gas, valve 2 and valve 3 are opened, close valve, it can be achieved that O2(AR)、N2、CH4、
The detection of CO, carrier gas are switched to N2、H2Switching, does not damage heated filament, therefore can directly use valve 1 without closing detector current
Valve 2 switches over, and the analysis method that parameter is arranged according to different carrier gas is recalled after switching.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (5)
1. a kind of gas-chromatography carrier gas switches application method, which is characterized in that gas circuit transformation is carried out, using carrier gases switching technique reality
Now single gas path analysis gas with various, by the switching to valve, to realize the switching to carrier gas, when with N2It, can when gas is carrier gas
Realize H2Detection, when with H2, it can be achieved that O when gas is carrier gas2(AR)、N2、CH4, CO detection.
2. gas-chromatography carrier gas according to claim 1 switches application method, which is characterized in that when detection, chromatographic column column
Box temperature degree is 60~65 DEG C.
3. gas-chromatography carrier gas according to claim 1 switches application method, which is characterized in that when detection, detector temperature
Degree is 150~165 DEG C.
4. gas-chromatography carrier gas according to claim 1 switches application method, which is characterized in that when detection, detector electricity
Flow 80~85mA.
5. gas-chromatography carrier gas according to claim 1 switches application method, which is characterized in that the detector is TCD
Detector, the chromatographic column are 13-X chromatographic column.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811501669.3A CN109521129A (en) | 2018-12-10 | 2018-12-10 | A kind of gas-chromatography carrier gas switching application method |
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|---|---|---|---|
| CN201811501669.3A CN109521129A (en) | 2018-12-10 | 2018-12-10 | A kind of gas-chromatography carrier gas switching application method |
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| CN109521129A true CN109521129A (en) | 2019-03-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1885031A (en) * | 2005-06-22 | 2006-12-27 | 中国石油化工股份有限公司 | Analyzer for mixed gas containing O2, N2 and H2 |
| CN202433347U (en) * | 2012-01-29 | 2012-09-12 | 济南鲍德气体有限公司 | Chromatograph carrier gas switching device |
| CN202452118U (en) * | 2012-02-23 | 2012-09-26 | 河南龙宇煤化工有限公司 | Gas-carrying uninterrupted switching device |
| CN102706988A (en) * | 2012-07-05 | 2012-10-03 | 大连世有电力科技有限公司 | Carrier gas cylinder automatic switching device for transformer oil gas on-line monitoring system |
| CN104198629A (en) * | 2014-09-12 | 2014-12-10 | 广西电网公司电力科学研究院 | Automatic carrier gas switching device for transformer oil chromatography monitoring system |
| CN204116297U (en) * | 2014-09-12 | 2015-01-21 | 广西电网公司电力科学研究院 | Gas in Oil of Transformer on-line monitoring system carrier gas device for intelligently switching |
| CN105548418A (en) * | 2016-01-15 | 2016-05-04 | 国家电网公司 | Movable carrier gas supply system |
| CN105572281A (en) * | 2015-12-15 | 2016-05-11 | 武汉钢铁(集团)公司 | Gas chromatography analytical device and gas chromatography analytical method for high-purity oxygen |
| CN205562486U (en) * | 2016-04-04 | 2016-09-07 | 鞍钢股份有限公司 | Disturbance auto -change over device is not had in carrier gas of chromatography appearance |
| CN205861630U (en) * | 2016-07-04 | 2017-01-04 | 吴江梅塞尔工业气体有限公司 | A kind of DID gas chromatograph carrier gas system |
| CN207601029U (en) * | 2017-10-12 | 2018-07-10 | 福建省气柜设备安装有限公司 | A kind of gas chromatograph carrier gas device |
-
2018
- 2018-12-10 CN CN201811501669.3A patent/CN109521129A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1885031A (en) * | 2005-06-22 | 2006-12-27 | 中国石油化工股份有限公司 | Analyzer for mixed gas containing O2, N2 and H2 |
| CN202433347U (en) * | 2012-01-29 | 2012-09-12 | 济南鲍德气体有限公司 | Chromatograph carrier gas switching device |
| CN202452118U (en) * | 2012-02-23 | 2012-09-26 | 河南龙宇煤化工有限公司 | Gas-carrying uninterrupted switching device |
| CN102706988A (en) * | 2012-07-05 | 2012-10-03 | 大连世有电力科技有限公司 | Carrier gas cylinder automatic switching device for transformer oil gas on-line monitoring system |
| CN104198629A (en) * | 2014-09-12 | 2014-12-10 | 广西电网公司电力科学研究院 | Automatic carrier gas switching device for transformer oil chromatography monitoring system |
| CN204116297U (en) * | 2014-09-12 | 2015-01-21 | 广西电网公司电力科学研究院 | Gas in Oil of Transformer on-line monitoring system carrier gas device for intelligently switching |
| CN105572281A (en) * | 2015-12-15 | 2016-05-11 | 武汉钢铁(集团)公司 | Gas chromatography analytical device and gas chromatography analytical method for high-purity oxygen |
| CN105548418A (en) * | 2016-01-15 | 2016-05-04 | 国家电网公司 | Movable carrier gas supply system |
| CN205562486U (en) * | 2016-04-04 | 2016-09-07 | 鞍钢股份有限公司 | Disturbance auto -change over device is not had in carrier gas of chromatography appearance |
| CN205861630U (en) * | 2016-07-04 | 2017-01-04 | 吴江梅塞尔工业气体有限公司 | A kind of DID gas chromatograph carrier gas system |
| CN207601029U (en) * | 2017-10-12 | 2018-07-10 | 福建省气柜设备安装有限公司 | A kind of gas chromatograph carrier gas device |
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Application publication date: 20190326 |