CN106226446A - A kind of gas chromatogram dilution air intake installation - Google Patents
A kind of gas chromatogram dilution air intake installation Download PDFInfo
- Publication number
- CN106226446A CN106226446A CN201610835150.3A CN201610835150A CN106226446A CN 106226446 A CN106226446 A CN 106226446A CN 201610835150 A CN201610835150 A CN 201610835150A CN 106226446 A CN106226446 A CN 106226446A
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- China
- Prior art keywords
- way valve
- valve
- gas
- carrier gas
- air tube
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/20—Injection using a sampling valve
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/20—Injection using a sampling valve
- G01N2030/201—Injection using a sampling valve multiport valves, i.e. having more than two ports
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
nullThe invention discloses a kind of gas chromatogram dilution air intake installation，It is characterized in that: it comprises: eight lead to valve (16) is sequentially connected with carrier gas interface (1)、It is diluted gas interface (2)、Sampling probe (8) and take air tube (7)，Sampling probe (8) is connected to relative interface with taking air tube (7)，Take air tube (7) to be connected with six-way valve (12)，Additionally six-way valve (12) is respectively by pipeline and water tumbler (15)、Six-way valve carrier gas inlet (10) connects with six-way valve carrier gas outlet (11)，Six-way valve carrier gas inlet (10) and six-way valve carrier gas outlet (11) are connected to two interfaces that six-way valve (12) is adjacent，Water tumbler (15) and take air tube (7) and be connected to two interfaces that six-way valve (12) is the most adjacent，The two interface connected is relative，Remain two interfaces to be connected by quantitative loop (13).
Description
Technical field
The present invention relates to a kind of gas chromatogram dilution air intake installation, belong to laboratory paraphernalia field.
Background technology
Would generally relate to carry out dilute to certain density calibrating gas when using chromatographic gaseous sample
The calibrating gas releasing to prepare variable concentrations makees calibration curve analysis, the most also can carry out the gaseous sample beyond upper limit of quantification
Analyze again after dilution, the whether accurate accuracy directly influencing ultimate analysis result of gas dilution.In the market also
There are no the gas dilution sampling device for gas chromatographic sample introduction of maturation, most laboratory mainly uses when diluent gas
The carrier gas of two glass syringe measured amounts respectively and Standard Gases or sample gas, then with a rubber tube two
The push-and-pull the most back and forth of syringe UNICOM makes gas mix, and finally the gas of mixing is injected six-way valve or injection port is analyzed,
Owing to needing to open frequently the forward end seal cap of syringe in above-mentioned dilution, therefore have a small amount of sky when preparation
Gas enters syringe, also has a small amount of gas and flows out, and the amount of input and output gas is also unable to estimate and reappears, for this in syringe
The analysis result made under this condition is often difficult to obtain accurate result.
Summary of the invention
The technical problem to be solved in the present invention is: provides a kind of gas chromatogram dilution air intake installation, solves prior art
Not enough.
The technical scheme is that a kind of gas chromatogram dilution air intake installation, it comprises: eight lead to valve is sequentially connected with carrier gas
Interface, being diluted gas interface, sampling probe and take air tube, sampling probe is connected to relative interface with taking air tube, takes air tube and clematis stem
Valve connects, and additionally six-way valve is respectively by pipeline and water tumbler, six-way valve carrier gas inlet and six-way valve carrier gas outlet, six-way valve
Carrier gas inlet and six-way valve carrier gas outlet are connected to two interfaces that six-way valve is adjacent, water tumbler and take air tube to be connected to six-way valve another
Two the most adjacent interfaces, the two interface connected is relative, remains two interfaces and is connected by quantitative loop.
Described eight lead to valve another two respectively with sampling probe and take the adjacent interface of air tube and connect stop valve D and stop valve B.
Described carrier gas interface and eight leads to and arranges stop valve A between valve；It is diluted gas interface and eight and leads to setting between valve
Shutoff valve C.
Described taking arranges stop valve E between air tube and six-way valve.
Beneficial effects of the present invention:
The standard of variable concentrations according to experimental analysis needs, can be accurately prepared in the use of the present invention under conditions of the most airtight
Gas, it is also possible to quantitatively diluting high-concentration gaseous sample reaches intended calibration range, and air mix facilities is directly connected in sampling device,
Simple to operate, save repeatability and the precision also substantially increasing experimental result while analysis time.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is that carrier gas pin of the present invention cleans schematic diagram；
Fig. 3 is gas mixing schematic diagram of the present invention；
Fig. 4 is gas schematic diagram after loading dilution.
Detailed description of the invention
A kind of gas chromatogram dilutes air intake installation, and it comprises: eight lead to valve 16 is sequentially connected with carrier gas interface 1, is diluted gas
Interface 2, sampling probe 8 and take air tube 7, sampling probe 8 is connected to relative interface with taking air tube 7, takes air tube 7 and is connected with six-way valve 12,
Additionally six-way valve 12 is connected with water tumbler 15, six-way valve carrier gas inlet 10 and six-way valve carrier gas outlet 11 by pipeline respectively, clematis stem
Valve carrier gas inlet 10 and six-way valve carrier gas outlet 11 are connected to two interfaces that six-way valve 12 is adjacent, and water tumbler 15 connects with taking air tube 7
Being connected on two interfaces that six-way valve 12 is the most adjacent, the two interface connected is relative, remains two interfaces by quantitative loop 13 even
Logical.Eight lead to valve 16 another two respectively with sampling probe 8 and take the adjacent interface of air tube 7 and connect stop valve D6 and stop valve B4.Carrier gas
Interface 1 and eight leads to and arranges stop valve A between valve 16；It is diluted gas interface 2 and eight to lead to and between valve 16, arrange shutoff valve C 5.Take gas
Stop valve E9 is set between pin 7 and six-way valve 12.Six-way valve carrier gas inlet 10 is connected with carrier gas source of the gas, and six-way valve carrier gas exports
11 are connected with the injection port of gas chromatogram, and quantitative loop 13 makes the gaseous sample of fixed volume fully enter gas chromatogram, and eight lead to valve
16 according to taking the needs of gas and mixed gas, can counterclockwise with 90 degree of rotations clockwise.
Functional realiey process:
Take air tube 7 to clean: such as Fig. 2；Carrier gas interface 1 and carrier gas UNICOM, take air tube 7 and carrier gas interface 1, stop valve A3, stop valve
B4 UNICOM, stop valve A3 opens, and stop valve B4, stop valve E9 close, and takes air tube 7 and pulls up the carrier gas that absorption is certain, then
Cut-off penalizes B4 to open, and takes air tube 7 and pushes down on discharge gas.
Take air tube 7 and take gas: taking after air tube 7 cleans and terminate, cut-off penalizes B4 to close, according to extension rate needs, take air tube 7 to
On pull and draw certain carrier gas, then stop valve A3, B4 closes.
Sampling probe 8 cleans: is diluted gas interface 2 and is diluted gas UNICOM, sampling probe 8 be diluted gas interface 2,
Shutoff valve C 5, stop valve D6 UNICOM, shutoff valve C 5 opens, and stop valve D6 closes, sampling probe 8 pull downward on draw certain dilute
Releasing sample gas, then cut-off penalizes C5 to close, and stop valve D6 opens, and sample gas upwardly discharged by sampling probe 8.
Sampling probe 8 takes gas: sampling probe 8 cleans after terminating, and cut-off penalizes D6 to close, and according to extension rate needs, sampling probe 8 pulls down
What dynamic absorption was certain is diluted gas, and then shutoff valve C 5, D6 close.
Gas mixes: such as Fig. 3, taking air tube 7 needs to measure a certain amount of carrier gas with dilute according to extension rate with sampling probe 8
After outgassing body, eight lead to valve 16 dextrorotation turn 90 degrees, carrier gas pin 7 and sampling probe 8 UNICOM, and stop valve E9 closes, then takes air tube 7
Promote the most up and down for several times with sampling probe 8 simultaneously, make carrier gas be sufficiently mixed with being diluted gas, then sampling probe
8 with take air tube 7 upwardly, make the sufficient all gas of mixing be parked in and take in air tube 7.
Load gas after dilution: such as Fig. 4, after gas mixing terminates, stop valve E9 opens, and takes air tube 7 and pushes down on, makes to mix
Closing gas and enter the quantitative loop 13 of six-way valve 12, excessive gas overflows from six-way valve gaseous sample discharger 14.
Sample introduction: mixed gas loads after terminating, and rotates six-way valve 12, makes quantitative loop 13 be in sample introduction state and complete sample introduction.
Claims (4)
1. a gas chromatogram dilution air intake installation, it is characterised in that: it comprises: eight lead to valve (16) is sequentially connected with carrier gas interface
(1), being diluted gas interface (2), sampling probe (8) and take air tube (7), sampling probe (8) is connected to relative connecing with taking air tube (7)
Mouthful, take air tube (7) and be connected with six-way valve (12), additionally six-way valve (12) is respectively by pipeline and water tumbler (15), six-way valve carrier gas
Import (10) connects with six-way valve carrier gas outlet (11), and six-way valve carrier gas inlet (10) and six-way valve carrier gas outlet (11) are connected to
Two interfaces that six-way valve (12) is adjacent, water tumbler (15) and take air tube (7) and be connected to the most adjacent two of six-way valve (12) and connect
Mouthful, the two interface connected is relative, remains two interfaces and is connected by quantitative loop (13).
A kind of gas chromatogram dilution air intake installation the most according to claim 1, it is characterised in that: eight lead to valve (16) another two
Respectively with sampling probe (8) and take the adjacent interface of air tube (7) and connect stop valve D(6) and stop valve B(4).
A kind of gas chromatogram dilution air intake installation the most according to claim 1, it is characterised in that: carrier gas interface (1) and eight
Between logical valve (16), stop valve A is set；It is diluted gas interface (2) and eight to lead to and between valve (16), arrange shutoff valve C (5).
A kind of gas chromatogram dilution air intake installation the most according to claim 1, it is characterised in that: take air tube (7) and clematis stem
Valve arranges stop valve E(9 between (12)).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610835150.3A CN106226446B (en) | 2016-09-21 | 2016-09-21 | A kind of gas-chromatography dilutes inlet duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610835150.3A CN106226446B (en) | 2016-09-21 | 2016-09-21 | A kind of gas-chromatography dilutes inlet duct |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106226446A true CN106226446A (en) | 2016-12-14 |
| CN106226446B CN106226446B (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610835150.3A Active CN106226446B (en) | 2016-09-21 | 2016-09-21 | A kind of gas-chromatography dilutes inlet duct |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367421A (en) * | 2017-09-19 | 2017-11-21 | 四川省科源工程技术测试中心 | Shale gas automatic dilution device and system |
| CN115508482A (en) * | 2022-09-19 | 2022-12-23 | 四川省科源工程技术测试中心 | Gas chromatograph gas combination device for high-sulfur-content gas |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3718224A1 (en) * | 1987-05-27 | 1988-12-15 | Gerhard Kress | Gas sample feed device |
| US5661224A (en) * | 1996-02-08 | 1997-08-26 | H2M Labs, Inc. | Method and apparatus for spiking atmospheric samples |
| WO2007141718A2 (en) * | 2006-06-09 | 2007-12-13 | Firmenich Sa | Method and apparatus for providing samples of volatiles to analysis using a multi-port valve and cryo-modulation |
| US20110192214A1 (en) * | 2010-02-08 | 2011-08-11 | Antonio Calleri | Field gas chromatograph with flame ionization |
| CN103460014A (en) * | 2011-03-11 | 2013-12-18 | 特斯托股份公司 | Handheld sample-removal head, analysis arrangement and method for characterizing an aerosol |
| CN104265952A (en) * | 2014-10-24 | 2015-01-07 | 北京佰纯润宇生物科技有限公司 | Eight-way valve and chromatographic system based on eight-way valve |
| CN104458978A (en) * | 2014-10-24 | 2015-03-25 | 北京佰纯润宇生物科技有限公司 | Five-position eight-way valve and chromatogram system based on five-position eight-way valve |
| CN204352774U (en) * | 2015-02-02 | 2015-05-27 | 南京迪天环境技术有限公司 | Calibrating gas gradient dilution device |
| CN105572250A (en) * | 2015-12-17 | 2016-05-11 | 中国原子能科学研究院 | Gas chromatographic detection system and method for analyzing hydrogen isotopes and trace impurity components in He |
| CN206020354U (en) * | 2016-09-21 | 2017-03-15 | 贵州省环境科学研究设计院 | A kind of gas chromatogram dilutes air intake installation |
-
2016
- 2016-09-21 CN CN201610835150.3A patent/CN106226446B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3718224A1 (en) * | 1987-05-27 | 1988-12-15 | Gerhard Kress | Gas sample feed device |
| US5661224A (en) * | 1996-02-08 | 1997-08-26 | H2M Labs, Inc. | Method and apparatus for spiking atmospheric samples |
| WO2007141718A2 (en) * | 2006-06-09 | 2007-12-13 | Firmenich Sa | Method and apparatus for providing samples of volatiles to analysis using a multi-port valve and cryo-modulation |
| US20110192214A1 (en) * | 2010-02-08 | 2011-08-11 | Antonio Calleri | Field gas chromatograph with flame ionization |
| CN103460014A (en) * | 2011-03-11 | 2013-12-18 | 特斯托股份公司 | Handheld sample-removal head, analysis arrangement and method for characterizing an aerosol |
| CN104265952A (en) * | 2014-10-24 | 2015-01-07 | 北京佰纯润宇生物科技有限公司 | Eight-way valve and chromatographic system based on eight-way valve |
| CN104458978A (en) * | 2014-10-24 | 2015-03-25 | 北京佰纯润宇生物科技有限公司 | Five-position eight-way valve and chromatogram system based on five-position eight-way valve |
| CN204352774U (en) * | 2015-02-02 | 2015-05-27 | 南京迪天环境技术有限公司 | Calibrating gas gradient dilution device |
| CN105572250A (en) * | 2015-12-17 | 2016-05-11 | 中国原子能科学研究院 | Gas chromatographic detection system and method for analyzing hydrogen isotopes and trace impurity components in He |
| CN206020354U (en) * | 2016-09-21 | 2017-03-15 | 贵州省环境科学研究设计院 | A kind of gas chromatogram dilutes air intake installation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367421A (en) * | 2017-09-19 | 2017-11-21 | 四川省科源工程技术测试中心 | Shale gas automatic dilution device and system |
| CN115508482A (en) * | 2022-09-19 | 2022-12-23 | 四川省科源工程技术测试中心 | Gas chromatograph gas combination device for high-sulfur-content gas |
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| Publication number | Publication date |
|---|---|
| CN106226446B (en) | 2018-01-30 |
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