CN106841483A - A kind of sample introduction separator of ping-pong structure - Google Patents
A kind of sample introduction separator of ping-pong structure Download PDFInfo
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- CN106841483A CN106841483A CN201710103938.XA CN201710103938A CN106841483A CN 106841483 A CN106841483 A CN 106841483A CN 201710103938 A CN201710103938 A CN 201710103938A CN 106841483 A CN106841483 A CN 106841483A
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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
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Abstract
A kind of sample introduction separator of ping-pong structure, including：Eight ways valve, for switching gas circuit trend, with eight connectors, respectively the first connector, the second connector, the 3rd connector, the 4th connector, the 5th connector, the 6th connector, the 7th connector and the 8th connector；Ten-way valve, for switching gas circuit trend, including ten connection ends, respectively the first connection end, the second connection end, the 3rd connection end, the 4th connection end, the 5th connection end, the 6th connection end, the 7th connection end, the 8th connection end, the 9th connection end and the tenth connection end；First quantitative loop；Second quantitative loop；First chromatographic column；Second chromatographic column and detector.
Description
Technical field
It is a kind of sample introduction separator of ping-pong structure specifically the present invention relates to sampling device.
Background technology
Gas-chromatography instrument is to separate biased sample and determined the device of each component information, mainly includes gas circuit system
System, sampling system, column system, detecting system, temperature control system and data handling system etc..During Instrumental Analysis, carrier gas will
Need the sample gas of measurement to be transferred to chromatographic column by sampling system, each component in sample gas is separated, the component elder generation after separation
After be transferred to detecting system, data handling system determines component in sample gas according to the retention time and peak area information of chromatographic data
Species and content information.
Existing gas-chromatography instrument coordinates multiple chromatographic columns when being analyzed to material using six-way valve and ten-way valve,
Often chromatographic column is not cleaned, or pause analysis process carries out the cleaning of a certain chromatographic column.There is following asking in this method
Topic：
1. measuring speed is slow；
2. constituent part residual causes chromatographic column to be contaminated in the chromatography column, shortens the service life of chromatographic column；
3. the degree of accuracy of residue influence measurement next time in chromatographic column.
The content of the invention
In order to solve the deficiency in above-mentioned prior art, the invention provides a kind of chromatography column feed materials of ping-pong structure point
From device, blowback cleaning can be carried out to chromatographic column while sample introduction is tested, extend the service life of chromatographic column, and lifted
Analysis efficiency.
The present invention is achieved through the following technical solutions：
A kind of chromatography column feed materials separator of ping-pong structure, described device includes：Eight ways valve, ten-way valve, the first quantitative loop, second
Quantitative loop, the first chromatographic column, the second chromatographic column and detector.
The eight ways valve includes eight connectors, respectively the first connector, the second connector, the 3rd connector, the 4th
Connector, the 5th connector, the 6th connector, the 7th connector and the 8th connector.The eight ways valve has two kinds of connected modes, side
First connector is connected with the second connector during formula one, the 3rd connector is connected with the 4th connector, the 5th connector and the 6th
Connector is connected, the 7th connector is connected with the 8th connector；During mode two second connector be connected with the 3rd connector, the 4th
Connector is connected with the 5th connector, the 6th connector is connected with the 7th connector, the 8th connector is connected with the first connector.
First connector of the eight ways valve is carrier gas air inlet, and the 3rd connector is sample gas air inlet, the 7th connector
It is atmospheric vent, the second connector and the 6th connector are connected with the first quantitative loop two ends, and the 4th connector is connected with the 8th
Mouth is connected with the second quantitative loop two ends.
The ten-way valve includes ten connection ends, respectively the first connection end, the second connection end, the 3rd connection end, the 4th
Connection end, the 5th connection end, the 6th connection end, the 7th connection end, the 8th connection end, the 9th linkage section and the tenth connection end.Should
Ten-way valve has two kinds of connected modes, and second connection end is connected with the 3rd connection end during mode one, the 4th connection end is connected with the 5th
End is connected, the 6th connection end is connected with the 7th connection end, the 8th connection end is connected with the 9th connection end, the tenth connection end and first
Connection end is connected；First connection end is connected with the second connection end during mode two, the 3rd connection end is connected with the 4th connection end, the 5th
Connection end is connected with the 6th connection end, the 7th connection end is connected with the 8th connection end, the 9th linkage section is connected with the tenth connection end.
First connection end of the ten-way valve is connected with the 5th connector of the eight ways valve, and the second connection end and the 5th connects
Connect end to be connected with the second chromatographic column two ends, the 3rd connection end is atmospheric vent, the 4th connection end and the 8th with the 9th connection end
Connection end is carrier gas air inlet, and the 6th connection end is connected with detector, the 7th connection end and the tenth connection end and the first chromatographic column
Two ends are connected.
First chromatographic column and second chromatographic column include two states, measuring state and blowback cleaning state.
What first quantitative loop and second quantitative loop were used to depositing fixed volume treats test sample gas；
Preferably, two connected modes of eight ways valve can switch mutually, and switching mode is manual switching or automatic switchover；
Preferably, two connected modes of ten-way valve can switch mutually, and switching mode is manual switching or automatic switchover；
Preferably, according to the eight ways valve and the difference of ten-way valve connected mode, first chromatographic column and second chromatogram
Post can switch between two states.
Compared with prior art, the advantageous effect of present invention is that：
1. all chromatographic columns can be circulated with blowback cleaning, extend the life-span of chromatographic column, and lift the degree of accuracy of measurement；
2. analysis process and blowback cleaning process can synchronously carry out, improve measurement efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the state one of present pre-ferred embodiments.
Fig. 2 is the structural representation of the state two of present pre-ferred embodiments.
Specific embodiment
F1 ten-way valves in figure, F2 eight ways valves, 1 first connection end, 2 second connection ends, 3 the 3rd connection ends,
4 the 4th connection ends, 5 the 5th connection ends, 6 the 6th connection ends, 7 the 7th connection ends, 8 the 8th connection ends, 9 the 9th linkage sections,
10 the tenth connection ends, 11 first connectors, 12 second connectors, 13 the 3rd connectors, 14 the 4th connectors, 15 the 5th connections
Mouthful, 16 the 6th connectors, 17 the 7th connectors, 18 the 8th connectors, 19 first quantitative loops, 20 second quantitative loops, 21 first colors
Spectrum post, 22 second chromatographic columns, 23 detectors
Specific embodiment of the invention is given below in conjunction with the accompanying drawings, and present invention work is further specifically retouched by embodiment
State.Be necessary it is pointed out here that, following implementation method be only intended to preferably to illustrate operation principle of the invention and its it is actual should
With, be used for the present invention in the various facilities in its field by the technical staff in order to other fields, and according to various special-purposes
Imagination be improved.Although the present invention discloses its preferred embodiment by word, by reading these technology words
Illustrate to can be appreciated that optimization property therein and alterability, and be improved on without departing from scope and spirit of the present invention,
But such improvement should still fall within the protection domain of the claims in the present invention.
Fig. 1 is the structural representation of state one of present pre-ferred embodiments.The first chromatographic column 21 is in detection under the state
State, the second chromatographic column 22 is in cleaning state.To coordinate the use demand of the first chromatographic column 21 and the second chromatographic column 22, ten lead to
Valve F1 and eight ways valve F2 are respectively at connected mode one, wherein, ten-way valve F1 includes the first to the tenth connection end, eight ways valve F2 bags
The first to the 8th connector is included, as shown in Figure 1.
Carrier gas enters eight ways valve F2 by first connector 11 of eight ways valve F2, fixed into first through the second connector 12
Amount ring 19, by the sample gas in the first quantitative loop 19 successively through the 6th connector 16, the 5th connector 15, ten-way valve F1 first company
Connect in end 1, incoming first chromatographic column 21 in the tenth connection end 10, after being separated through the first chromatographic column 21, test substance connects by the 7th
Connect end 7, the 6th connection end 6 and enter detector 23, obtain chromatographic data, complete analysis process；Carrier gas pass through ten-way valve F1 the
Four connection end 4 enters ten-way valve F1, and the second chromatographic column 22 is entered through the 5th connection end 5, starts blowback and cleans the second chromatographic column 22,
Gas is emptied by the second connection end 2, the 3rd connection end 3 after cleaning；Sample gas is connected through the 3rd connector the 13, the 4th of eight ways valve F2
Mouth 14 flows into the second quantitative loops 20, stores for the fixed volume sample gas needed for detection next time, and residual gas is through the 8th connector
18th, the 7th connector 17 is emptied；Carrier gas is directly emptied through the 8th connection end 8 of ten-way valve F1, the 9th connection end 9.
Fig. 2 is the structural representation of state two of present pre-ferred embodiments.The first chromatographic column 21 is in blowback under the state
Cleaning state, the second chromatographic column 22 is in detection state.To coordinate the use demand of the first chromatographic column 21 and the second chromatographic column 22,
Ten-way valve F1 and eight ways valve F2 are respectively at connected mode two, wherein, ten-way valve F1 includes the first to the tenth connection end, eight ways valve
F2 includes the first to the 8th connector, as shown in Figure 2.
Carrier gas enters eight ways valve F2 by the first connector 11, and the second quantitative loop 20 is entered through the 8th connector 18, by the
Sample gas in two quantitative loops 20 is connected through first connection end 1, second of the 4th connector 14, the 5th connector 15, ten-way valve F1
2 incoming second chromatographic columns 22 are held, after being separated through the second chromatographic column 22, test substance passes through the 5th connection end 5, the 6th connection end 6
Into detector 23, chromatographic data is obtained, complete analysis process；Carrier gas enters ten and leads to by the 8th connection end 8 of ten-way valve F1
Valve F1, the first chromatographic column 21 is entered through the 7th connection end 7, is started blowback and is cleaned the first chromatographic column 21, and gas is by the tenth after cleaning
Connection end 10, the 9th connection end 9 empty；Sample gas flows into first through the 3rd connector 13 of eight ways valve F2, the second connector 12 to be determined
Amount ring 19, stores for the fixed volume sample gas needed for detection next time, and residual gas is through the 6th connector 16, the 7th connector 17
Emptying；Carrier gas is directly emptied through the 4th connection end 4 of ten-way valve F1, the 3rd connection end 3.
As described in above-mentioned process, the present invention ensure that two chromatographic columns in device, and one is in detection state, one
In cleaning state simultaneously, it is ensured that measurement is carried out with cleaning, the efficiency of analysis test is improved.Additionally, by from different
Chromatographic column, it is possible to achieve detected while to two kinds of materials.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (12)
1. the sample introduction separator of a kind of ping-pong structure, including：Eight ways valve, for switching gas circuit trend, with eight connectors,
Respectively the first connector, the second connector, the 3rd connector, the 4th connector, the 5th connector, the 6th connector, the 7th
Connector and the 8th connector；Ten-way valve, for switching gas circuit trend, including ten connection ends, respectively the first connection end, the
Two connection ends, the 3rd connection end, the 4th connection end, the 5th connection end, the 6th connection end, the 7th connection end, the 8th connection end,
Nine connection ends and the tenth connection end；First quantitative loop；Second quantitative loop；First chromatographic column；Second chromatographic column and detector.
2. sample introduction separator according to claim 1, the eight ways valve has two kinds of connected modes, and first connects during mode one
Interface is connected with the second connector, the 3rd connector is connected with the 4th connector, the 5th connector is connected with the 6th connector,
Seven connectors are connected with the 8th connector；During mode two second connector be connected with the 3rd connector, the 4th connector and the 5th
Connector is connected, the 6th connector is connected with the 7th connector, the 8th connector is connected with the first connector.
3. sample introduction separator according to claim 1, the ten-way valve has two kinds of connected modes, and second connects during mode one
Connect that end is connected with the 3rd connection end, the 4th connection end is connected with the 5th connection end, the 6th connection end is connected with the 7th connection end, the
Eight connection ends are connected with the 9th connection end, the tenth connection end is connected with the first connection end；First connection end and second during mode two
Connection end be connected, the 3rd connection end is connected with the 4th connection end, the 5th connection end is connected with the 6th connection end, the 7th connection end and
8th connection end is connected, the 9th linkage section is connected with the tenth connection end.
4. sample introduction separator according to claim 1, the first connector of the eight ways valve is connected with the second connector,
3rd connector is connected with the 4th connector, the 5th connector is connected with the 6th connector, the 7th connector and the 8th connector
It is connected；Second connection end of the ten-way valve is connected with the 3rd connection end, the 4th connection end is connected with the 5th connection end, the 6th connects
Connect end be connected with the 7th connection end, the 8th connection end is connected with the 9th connection end, the tenth connection end is connected with the first connection end.
5. sample introduction separator according to claim 1, the second connector of the eight ways valve is connected with the 3rd connector,
4th connector is connected with the 5th connector, the 6th connector is connected with the 7th connector, the 8th connector and the first connector
It is connected；First connection end of the ten-way valve is connected with the second connection end, the 3rd connection end is connected with the 4th connection end, the 5th connects
Connect end be connected with the 6th connection end, the 7th connection end is connected with the 8th connection end, the 9th linkage section is connected with the tenth connection end.
6. the sample introduction separator according to claim any one of 1-5, the first connector of the eight ways valve enters for carrier gas
Gas port, the 3rd connector is sample gas air inlet, and the 7th connector is atmospheric vent, the second connector and the 6th connector and the
A certain amount of ring two ends are connected, and the 4th connector is connected with the 8th connector with the second quantitative loop two ends.
7. the sample introduction separator according to claim any one of 1-5, the first connection end of the ten-way valve and described eight
5th connector of port valve is connected, and the second connection end and the 5th connection end are connected with the second chromatographic column two ends, the 3rd connection end and
9th connection end is atmospheric vent, and the 4th connection end is carrier gas air inlet, the 6th connection end and detector with the 8th connection end
It is connected, the 7th connection end and the tenth connection end are connected with the first chromatographic column two ends.
8. sample introduction separator according to claim 1, first chromatographic column and second chromatographic column include two
Individual state, measuring state and blowback cleaning state.
9. sample introduction separator according to claim 8, first chromatographic column and second chromatographic column are with for the moment
Carve, have and only one of which is in measuring state, another is necessarily in blowback cleaning state.
10. sample introduction separator according to claim 1, first quantitative loop and second quantitative loop are used to deposit
Fixed volume treats test sample gas.
The 11. sample introduction separator according to claim any one of 1-5, first quantitative loop and second quantitative loop
In synchronization, have and only one of which is passed through carrier gas, for by gas feeding detector in quantitative loop, another to be necessarily passed through
Sample gas, is that measurement next time is prepared full of the quantitative loop.
Two connected modes of 12. sample introduction separators according to claim 8, eight ways valve and/or ten-way valve can be mutual
Switching, switching mode is manual switching or automatic switchover, according to the eight ways valve and the difference of ten-way valve connected mode, described the
One chromatographic column and second chromatographic column can switch between two states.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710103938.XA CN106841483B (en) | 2017-02-24 | 2017-02-24 | A kind of sample introduction separator of ping-pong structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710103938.XA CN106841483B (en) | 2017-02-24 | 2017-02-24 | A kind of sample introduction separator of ping-pong structure |
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| CN106841483A true CN106841483A (en) | 2017-06-13 |
| CN106841483B CN106841483B (en) | 2018-11-27 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856302A (en) * | 2018-01-17 | 2019-06-07 | 中国环境科学研究院 | A kind of gas-detecting device and its operating method for benzene homologues |
| CN110470616A (en) * | 2018-05-10 | 2019-11-19 | 北京清测科技有限公司 | Sampling device, mercury analysis system and mercury analysis method |
| CN113917054A (en) * | 2021-09-29 | 2022-01-11 | 苏州天蓝分析仪器有限公司 | Device for automatically measuring atmosphere trace-level VOC (volatile organic compound) components |
| CN115326967A (en) * | 2022-08-16 | 2022-11-11 | 成都蓝湖科技有限公司 | Sample pretreatment system for on-line chromatographic analyzer for measuring natural gas components |
| CN115561349A (en) * | 2022-09-21 | 2023-01-03 | 中国地质科学院矿产资源研究所 | N-type zeolite 2 Device and method for testing nitrogen and trioxygen isotopes of O gas and cracked gas of O gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856302A (en) * | 2018-01-17 | 2019-06-07 | 中国环境科学研究院 | A kind of gas-detecting device and its operating method for benzene homologues |
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| CN110470616A (en) * | 2018-05-10 | 2019-11-19 | 北京清测科技有限公司 | Sampling device, mercury analysis system and mercury analysis method |
| CN113917054A (en) * | 2021-09-29 | 2022-01-11 | 苏州天蓝分析仪器有限公司 | Device for automatically measuring atmosphere trace-level VOC (volatile organic compound) components |
| CN115326967A (en) * | 2022-08-16 | 2022-11-11 | 成都蓝湖科技有限公司 | Sample pretreatment system for on-line chromatographic analyzer for measuring natural gas components |
| CN115561349A (en) * | 2022-09-21 | 2023-01-03 | 中国地质科学院矿产资源研究所 | N-type zeolite 2 Device and method for testing nitrogen and trioxygen isotopes of O gas and cracked gas of O gas |
| CN115561349B (en) * | 2022-09-21 | 2023-08-18 | 中国地质科学院矿产资源研究所 | N (N) 2 Device and method for testing nitrogen and trioxyisotope of O gas and pyrolysis gas thereof |
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|---|---|
| CN106841483B (en) | 2018-11-27 |
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