CN206235602U - A kind of detecting system of oxygenatedchemicals - Google Patents
A kind of detecting system of oxygenatedchemicals Download PDFInfo
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- CN206235602U CN206235602U CN201621091737.XU CN201621091737U CN206235602U CN 206235602 U CN206235602 U CN 206235602U CN 201621091737 U CN201621091737 U CN 201621091737U CN 206235602 U CN206235602 U CN 206235602U
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- perforate
- way valve
- oxygenatedchemicals
- detector
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Abstract
The utility model belongs to gas-chromatography field,Specifically related to a kind of detecting system of oxygenatedchemicals,Including sampling device,Six-way valve A,Six-way valve B,Carrier gas channel,Discharge duct,Micro-packed column,Chromatographic column and detector,Six-way valve A and six-way valve B includes first state and the second state,First six-way valve is provided with the first perforate,Second perforate,3rd perforate,4th perforate,5th perforate and the 6th perforate,Second six-way valve is provided with the 7th perforate,8th perforate,9th perforate,Tenth perforate,11st perforate,12nd perforate,Sampling device connects the first perforate,A left side for micro-packed column,Right two ends connect the 6th perforate and the 3rd perforate respectively,Chromatographic column it is upper,Lower two ends connect the 7th perforate and the tenth perforate respectively,The utility model can will have noisy lightweight class hydrocarbon discharge in chemical industry light oil,Make the oxygenatedchemicals comparison of ingredients for entering detector pure,Improve Detection accuracy,Increase the service life of detector.
Description
Technical field
The utility model belongs to gas-chromatography field, more particularly to a kind of detecting system of oxygenatedchemicals.
Background technology
At present, the assay method of oxygenatedchemicals uses U.S. material with experiment association substantially in chemical industry light oil（ASTM）
D4815 standard method of analyses, the method first uses micro-packed column that hydro carbons is separated to eliminate interference from oxygenatedchemicals, so that
Oxygenatedchemicals in chemical industry light oil and heavy hydrocarbons are separated into capillary column, because the heavy hydrocarbons component in sample is in color
The residence time is more long in spectrum post, and analysis time is more very long, easily disturbs the analysis of next sample, existing more time-consuming
Be to realize blowback effect using the switching state twice of ten-way valve, but heavy hydrocarbons component needs to flow through fid detector, heavy hydrocarbons
Component flows through the phenomenon that fid detector has incomplete combustion for a long time, and so as to cause combustion head to block, certain is oxygen-containing for single detection
Needed during compound wait the long period, be unfavorable for analysis promptness, therefore, the detecting system of existing oxygenatedchemicals and
Detection method can not meet requirements of one's work.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art to provide a kind of detecting system of oxygenatedchemicals.
What the utility model was realized in：A kind of detecting system of oxygenatedchemicals, including sampling device, the one or six lead to
Valve, the second six-way valve, carrier gas channel, discharge duct, micro-packed column, chromatographic column and detector, it is characterised in that：Described first
Six-way valve and the second six-way valve include first state and the second state, the first six-way valve be provided with the first perforate, the second perforate,
3rd perforate, the 4th perforate, the 5th perforate and the 6th perforate, the second six-way valve are provided with the 7th perforate, the 8th perforate, the 9th open
Hole, the tenth perforate, the 11st perforate, the 12nd perforate, sampling device connect the first perforate, the left and right two ends point of micro-packed column
Not Lian Jie the 6th perforate and the 3rd perforate, the upper/lower terminal of chromatographic column connects the 7th perforate and the tenth perforate respectively, and detector connects
The 12nd perforate is connect, the 5th perforate is connected with the 11st perforate, and carrier gas channel connects the 4th perforate, and discharge duct connection the 9th is opened
Hole.
Can mutually switch between described first state and the second state.
Described detector is fid detector.
The utility model can have dry by the first six-way valve of switching and the state of the second six-way valve in chemical industry light oil
The lightweight class hydrocarbon discharge disturbed, reduces experiment interference, the oxygenatedchemicals and heavy for making to be detected in sample by blowback
Hydrocarbon component is discharged without entering fid detector, makes the oxygenatedchemicals comparison of ingredients for entering detector pure, be increased
The service life of fid detector, shortens detection time, so that the collection of illustrative plates of chromatogram monitoring picture appearance is simpler directly perceived,
With stronger identification, be conducive to operator's operation.
Brief description of the drawings
Fig. 1 is the system schematic of the detecting system first step of oxygenatedchemicals.
Fig. 2 is the system schematic of the detecting system second step of oxygenatedchemicals.
Fig. 3 is the system schematic of the detecting system third step of oxygenatedchemicals.
1st, sampling device 2, detector 3, chromatographic column 4, the second six-way valve 5, micro-packed column the 6, the 1st lead to
Valve 7, carrier gas channel 8, discharge duct 101, the first perforate 102, the second perforate 103, the 3rd perforate 104,
Four perforates 105, the 5th perforate 106, the 6th perforate 201, the 7th perforate 202, the 8th perforate 203, the 9th perforate
204th, the tenth perforate 205, the 11st perforate 206, the 12nd perforate.
Specific embodiment
Embodiment 1, a kind of detecting system of oxygenatedchemicals, including sampling device 1, the first six-way valve 6, the second six-way valve
4th, carrier gas channel 7, discharge duct 8, micro-packed column 5, chromatographic column 3 and detector 2, detector 2 are fid detector, sampling device 1
Sample gas and carrier gas can be provided for detecting system, the first six-way valve 6 and the second six-way valve 4 include first state and the second shape
State, can mutually switch between first state and the second state, and the first six-way valve 6 is provided with the first perforate 101, the second perforate
102nd, the 3rd perforate 103, the 4th perforate 104, the 5th perforate 105 and the 6th perforate 106, the second six-way valve 4 are provided with the 7th and open
Hole 201, the 8th perforate 202, the 9th perforate 203, the tenth perforate 204, the 11st perforate 205, the 12nd perforate 206, sample introduction dress
1 the first perforate of connection is put, the left and right two ends of micro-packed column 5 connect the 6th perforate 106 and the 3rd perforate 103, filled out according to micro- respectively
Fill whether the light hydrocarbons that the change of spectral color on post 5 may determine that in oxygenatedchemicals are vented, upper and lower the two of chromatographic column 3
End connects the 7th perforate 201 and the tenth perforate 204 respectively, and detector 2 connects the 12nd perforate 206, and the 5th perforate 105 is connected with
11st perforate 205, carrier gas channel 7 connects the 4th perforate 104, and carrier gas channel 7 provides carrier gas when detecting system works, and is vented
Pipeline 8 connects the 9th perforate 203.
During utility model works, the detection process of oxygenatedchemicals is divided into three steps.
First step, the first six-way valve 6 and the second six-way valve 4 are in first state, in this case, the first perforate
101 the 6th perforates 106 of connection, the 3rd perforate 103 connects the second perforate 102, and the second perforate 102 connects the 8th perforate 202, the 8th
Perforate 202 connects the 9th perforate 203；4th perforate 104 connects the 5th perforate 105, and the 5th perforate 105 connects the 11st perforate
205, the 11st perforate 205 connects the tenth perforate 204, and the 7th perforate 201 connects the 12nd perforate 206.Sample in sampling device 1
Product gas and carrier gas enter micro-packed column 5 through the first perforate 101 and the 6th perforate 106 successively, micro-packed column 5 centrifugation and
Under pre-reservation effect, oxygen-containing oxide and heavy hydrocarbon in sample gas are retained by micro-packed column 5, and the light hydrocarbons in sample exist
After the 3rd perforate 103, the second perforate 102, the 8th perforate 202 and the 9th perforate 203 are sequentially passed through under the drive of carrier gas, through deflating
Pipeline 8 is vented.
Second step, after the lightweight class hydrocarbon in sample gas is vented, is immediately switched to the first six-way valve 6 to the second shape
State, now, the first six-way valve 6 is the second state, and the second six-way valve 4 is first state, and in this case, the first perforate 101 connects
The second perforate 102 is connect, the second perforate 102 connects the 7th perforate 202, and the second perforate 202 connects the 9th perforate 203；4th perforate
104 the 3rd perforates 103 of connection, the 6th perforate 106 connects the 5th perforate 105, and the 5th perforate 105 connects the 11st perforate 205, the
11 perforate 205 connects the tenth perforate 204, and the 7th perforate 201 connects the 12nd perforate 206.In the case, sampling device 1
Interior sample and carrier gas is sequentially passed through 203 behind the first perforate 101, the second perforate 102, the 8th perforate 202 and the 9th hole, through deflating
Pipeline 8 is discharged, and the carrier gas in carrier gas channel 7 reaches micro-packed column 5 and to micro- filling through the 4th perforate 104 and the 3rd perforate 103
Post 5 carries out blowback, and the oxygenatedchemicals and heavy hydrocarbon retained in subsequent micro-packed column 5 are opened through the 6th perforate the 106, the 5th successively
Hole 105, the 11st perforate 205, the tenth perforate 204, chromatographic column 3, the 7th perforate the 201 and the 12nd are opened 206 holes and enter detector
2。
Third step, when required oxygenatedchemicals is by after the detection of detector 2, being immediately switched to the second six-way valve 4
Second state, the first six-way valve 6 and the second six-way valve 4 are in the second state, in this case, the connection of the first perforate 101 the
Two perforates 102, the second perforate 102 connects the 8th perforate 202, and the 8th perforate 202 connects the 7th perforate 201, and the tenth perforate 204 connects
Connect the 9th perforate 203；4th perforate 104 connects the 3rd perforate 103, and the 6th perforate 106 connects the 5th perforate 105, the 5th perforate
105 the 11st perforates 205 of connection, the 11st perforate 205 connects the 12nd perforate 206.Sample in sampling device 1 is successively through
One perforate 101, the second perforate 102, the 8th perforate 202, the 7th perforate 201 carry out blowback into chromatographic column 3 and to chromatographic column 3,
The oxygenatedchemicals and heavy hydrocarbon that need not be detected under the drive of sample gas and carrier gas, in chromatographic column 3 sequentially pass through
After ten perforates 204 and the 9th perforate 203, discharged through exhausting pipeline 8；Meanwhile, the flow velocity of carrier gas is improved, contain carrier gas channel 7
Gas is successively through the 4th perforate 104, the 3rd perforate 103, micro-packed column 5, the 6th perforate 106, the 5th perforate 105, the 11st perforate
205 and the 12nd perforate 206 enters detector, accelerates analysis of experiments process, shortens analysis time.
After the completion of the detection of oxygenatedchemicals, the state of the first six-way valve 6 of switching and the second six-way valve 4 makes the one or six
The six-way valve 4 of port valve 6 and second is in first state.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, for this area
Technical staff for, the utility model can have a various modifications and variations, all within spirit of the present utility model and principle,
Any modification, equivalent substitution and improvements made etc., should be included within protection domain of the present utility model.
Claims (3)
1. a kind of detecting system of oxygenatedchemicals, including sampling device, six-way valve A, six-way valve B, carrier gas channel, bleeder pipe
Road, micro-packed column, chromatographic column and detector, it is characterised in that：Described six-way valve A and six-way valve B include first state and
Second state, six-way valve A is provided with the first perforate, the second perforate, the 3rd perforate, the 4th perforate, the 5th perforate and the 6th perforate,
Six-way valve B is provided with the 7th perforate, the 8th perforate, the 9th perforate, the tenth perforate, the 11st perforate, the 12nd perforate, sample introduction dress
The first perforate of connection is put, the left and right two ends of micro-packed column connect the 6th perforate and the 3rd perforate, upper and lower the two of chromatographic column respectively
End connects the 7th perforate and the tenth perforate respectively, and detector connects the 12nd perforate, and the 5th perforate is connected with the 11st perforate, carries
Feed channel connects the 4th perforate, and atmospheric pipe connects the 9th perforate.
2. the detecting system of a kind of oxygenatedchemicals according to claim 1, it is characterised in that：Described first state and
Can mutually switch between second state.
3. the detecting system of a kind of oxygenatedchemicals according to claim 1, it is characterised in that：Described detector is
Fid detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621091737.XU CN206235602U (en) | 2016-09-29 | 2016-09-29 | A kind of detecting system of oxygenatedchemicals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621091737.XU CN206235602U (en) | 2016-09-29 | 2016-09-29 | A kind of detecting system of oxygenatedchemicals |
Publications (1)
| Publication Number | Publication Date |
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| CN206235602U true CN206235602U (en) | 2017-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621091737.XU Active CN206235602U (en) | 2016-09-29 | 2016-09-29 | A kind of detecting system of oxygenatedchemicals |
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| CN (1) | CN206235602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107146A (en) * | 2017-12-29 | 2018-06-01 | 大连福佳·大化石油化工有限公司 | Oxide content assay method in improved naphtha |
-
2016
- 2016-09-29 CN CN201621091737.XU patent/CN206235602U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107146A (en) * | 2017-12-29 | 2018-06-01 | 大连福佳·大化石油化工有限公司 | Oxide content assay method in improved naphtha |
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