CN206177905U - Online gas chromatograph - Google Patents
Online gas chromatograph Download PDFInfo
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- CN206177905U CN206177905U CN201621220105.9U CN201621220105U CN206177905U CN 206177905 U CN206177905 U CN 206177905U CN 201621220105 U CN201621220105 U CN 201621220105U CN 206177905 U CN206177905 U CN 206177905U
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- chromatographic column
- module
- control module
- temperature control
- detector
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- 238000001514 detection method Methods 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 238000001228 spectrum Methods 0.000 claims description 10
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000000969 carrier Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 claims 1
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 2
- 229930195733 hydrocarbon Natural products 0.000 abstract description 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 2
- 125000001997 phenyl group Chemical class [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 37
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 27
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000005457 optimization Methods 0.000 description 5
- 239000012159 carrier gas Substances 0.000 description 4
- 239000003570 air Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000834 fixative Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- VGQXTTSVLMQFHM-UHFFFAOYSA-N peroxyacetyl nitrate Chemical compound CC(=O)OO[N+]([O-])=O VGQXTTSVLMQFHM-UHFFFAOYSA-N 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The utility model relates to a gas composition detection area especially relates to an online gas chromatograph, including gas flow path module, chromatographic column module and detection module, the gas flow path module includes multi -ported valve group and gas flow control system, the chromatographic column module includes chromatographic column group and temp. Control module group, and chromatographic column group organizes including a temp. Control module and the 2nd temp. Control module including first chromatographic column, second chromatographic column and third chromatogram post, temp. Control module, and detection module includes first detector and second detector, adopt the technical scheme of the utility model, can simultaneous determination non -methane total hydrocarbon and benzene series thing, improve the availability factor, reduce and maintain interference factor.
Description
Technical field
This utility model is related to field of gas detection, more particularly, it relates to a kind of online gas chromatograph.
Background technology
NMHC can generate the quilts such as ozone, Peroxyacetyl nitrate and aldehydes with nitrogen oxides in the presence of sunlight
The referred to as material of photochemical fog, its toxicity and hazardness have become pollution environmental form of greatest concern.
Benzene homologues are the colourless volatile organic matters for having a special aromatic odor, are widely used in paint, pesticide, medicine, have
In the industries such as machine chemical industry.Benzene homologues are compounds common in waste gas of pollutant and surrounding air, to ambient air quality and people
Body health is toxic, there is carcinogenesis, is the pollutant of China's environment measuring priority acccess control.
Therefore, many stationary sources and environment measuring website are required for detecting NMHC and benzene homologues simultaneously.One
As detected there are various problems in practical application respectively using two sets of instruments, using two sets of instruments, non-methane is analyzed respectively
Total hydrocarbon and benzene homologues, need supporting relevant device to increase, high cost.
The content of the invention
This utility model is in order to solve above-mentioned technical problem, there is provided a kind of online gas chromatograph, can solve the problem that existing
With the presence of the problem of online gas chromatogram.
The online gas chromatograph that this utility model is provided, including gas flow path module, chromatographic column module and detection
Module, gas flow path module includes multiple-way valve group and gas Flowrate Control System；Chromatographic column module includes chromatographic column group and temperature control
Module group, chromatographic column group includes the first chromatographic column, the second chromatographic column and tertiary color spectrum post, and temperature control module group includes the first temperature control
Module and the second temperature control module, wherein, the first temperature control module is the temperature control module of the first chromatographic column, and the second temperature control module is second
Chromatographic column and tertiary color compose the common temperature control module of post, and the first temperature control module and the second temperature control module can be by temperature controls in room
Temperature（With environmental change）To between 200 degrees Celsius.Detection module includes the first detector and the second detector.
Used as further optimization of the present utility model, the first chromatographic column is rustless steel inertia pipe；The second chromatographic column material
Matter is rustless steel, column length 2m, the mm of internal diameter 4, GDX-502 or GDX-104 carriers；Tertiary color composes post material for rustless steel, fixative
Position Polyethylene Glycol（PEG-20M）, column length 25m, 0.20~0.32mm of internal diameter, 0.2~1.00 μm of thickness or equivalent capillary column.
Used as further optimization of the present utility model, chromatographic column module also includes the 4th chromatographic column.
Used as further optimization of the present utility model, the 4th chromatographic column material is rustless steel, fixed liquid level Polyethylene Glycol
（PEG-20M）, column length 5m, 0.20~0.32mm of internal diameter, 0.2~1.00 μm of thickness or equivalent capillary column.
Used as further optimization of the present utility model, multiple-way valve group includes two ten-way valves and a six-way valve.
Used as further optimization of the present utility model, the first detector and the second detector are hydrogen flameionization detection
Device.
In detection process, under test gas are divided into two-way, and gas flow path module is respectively delivered to first via under test gas
First chromatographic column and the second chromatographic column, the first detector is entered Jing after the first chromatographic column and the second chromatograph post separation；Gas flow path
Second tunnel under test gas are delivered to tertiary color spectrum post by module, and under test gas are Jing after tertiary color spectrum post separation into the second detection
Device.
Online gas chromatograph in this utility model can simultaneously detect NMHC and benzene homologues, in sampling rank
Section, sample gas enters the first quantitative loop, the second quantitative loop and the 3rd quantitative loop by sampling pump, switch valve, subsequently into row
Gas is exported.In the sample introduction stage, the first carrier gas source of the gas can drive the sample in first quantitative loop, by the first chromatographic column,
Into the detection of the first detector.Second carrier gas source of the gas can drive the sample in second quantitative loop, by the second chromatographic column,
Into the detection of the first detector.3rd carrier gas source of the gas can drive the sample in second quantitative loop, and by tertiary color post is composed,
Into the detection of the second detector.When detector is in the blowback stage, carrier gas enters air exit, blowback to the second chromatographic column blowback
Effect be that sample introduction stage sample gas is gone out into the second chromatographic column in the second chromatographic column with the NMHC blowback of methane separation.Carry
Gas enters air exit to the 4th chromatographic column blowback, and the effect of blowback is that sample gas is detached with benzene homologues in the 4th chromatographic column
The compound blowback higher than benzene homologues boiling point goes out the 4th chromatographic column, extends the service life that tertiary color composes post.
Methane in this utility model and NMHC detection method of content, can simultaneously determine NMHC and benzene
Be thing, it is also possible to individually determine NMHC or individually determine benzene homologues, improve service efficiency, reduce safeguarding interference because
Element.
Description of the drawings
Fig. 1 is each module logic relation schematic diagram of the online gas chromatograph of this utility model；
Fig. 2 is the online gas chromatographic device gas circuit connection diagram of this utility model.
Specific embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with the accompanying drawings and tool
The utility model is described in further detail for body embodiment.
Fig. 1 and Fig. 2 illustrate this utility model methane with the gas chromatogram used in NMHC detection method of content
Instrument gas circuit schematic diagram.As shown in Figures 1 and 2, the online gas chromatograph that this utility model is provided, including gas flow path module
10th, chromatographic column module and detection module 30, gas flow path module 10 includes two ten-way valves and a six-way valve；Chromatographic column mould
Block includes chromatographic column group and temperature control module group, and chromatographic column group includes the first chromatographic column 1, the second chromatographic column 2 and tertiary color spectrum post
3, temperature control module group includes the first temperature control module and the second temperature control module 20, wherein, the first temperature control module is the first chromatographic column 1
Temperature control module, the second temperature control module 20 is the common temperature control module that the second chromatographic column 2 and tertiary color compose post 3.Detection module 30 is wrapped
Include the first detector 5 and the second detector 6.
In detection process, under test gas are divided into two-way, and gas flow path module 10 respectively conveys first via under test gas
To the first chromatographic column 1 and the second chromatographic column 2, Jing after the first chromatographic column 1 and the second chromatographic column 2 are separated the first detector 5 is entered；Gas
Second tunnel under test gas are delivered to tertiary color spectrum post 3 by body stream module 10, and under test gas are entered Jing after tertiary color spectrum post 3 is separated
Second detector 6.
In the present embodiment, the first chromatographic column 1 is rustless steel inertia pipe；The material of second chromatographic column 2 be rustless steel, column length
2m, internal diameter 4mm, GDX-502 or GDX-104 carriers；Tertiary color spectrum post 3 material is rustless steel, fixed liquid level Polyethylene Glycol（PEG-
20M）, column length 25m, 0.20~0.32mm of internal diameter, 0.2~1.00 μm of thickness or equivalent capillary column.
In the present embodiment, chromatographic column module also includes the 4th chromatographic column 4.
In the present embodiment, the material of the 4th chromatographic column 4 is rustless steel, fixed liquid level Polyethylene Glycol（PEG-20M）, column length
5m, 0.20~0.32mm of internal diameter, 0.2~1.00 μm of thickness or equivalent capillary column.
In the present embodiment, the first detector and the second detector are flame ionization ditector.
Above example is only preferred implementation of the present utility model, it is noted that above-mentioned preferred implementation
It is not construed as to restriction of the present utility model, protection domain of the present utility model should be with claim limited range
It is accurate.For those skilled in the art, in without departing from spirit and scope of the present utility model, can also do
Go out some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (8)
1. a kind of online gas chromatograph, including gas flow path module, chromatographic column module and detection module, its feature exists
In：
The gas flow path module includes multiple-way valve group and gas Flowrate Control System；
The chromatographic column module includes chromatographic column group and temperature control module group, and chromatographic column group includes the first chromatographic column, the second chromatographic column
And tertiary color spectrum post, temperature control module group includes the first temperature control module and the second temperature control module, wherein, the first temperature control module is the
The temperature control module of one chromatographic column, the second temperature control module is the common temperature control module that the second chromatographic column and tertiary color compose post；
The detection module includes the first detector and the second detector；
In detection process, under test gas are divided into two-way, and first via under test gas are delivered to respectively first by gas flow path module
Chromatographic column and the second chromatographic column, the first detector is entered Jing after the first chromatographic column and the second chromatograph post separation；Gas flow path module
Second tunnel under test gas are delivered to into tertiary color spectrum post, under test gas enter the second detector Jing after tertiary color spectrum post separation.
2. online gas chromatograph according to claim 1, it is characterised in that first chromatographic column is that rustless steel is lazy
Property pipe；The second chromatographic column material be rustless steel, column length 2m, internal diameter 4mm, GDX-502 or GDX-104 carriers；Tertiary color is composed
Post material is rustless steel, fixed liquid level Polyethylene Glycol（PEG-20M）, column length 25m, 0.20~0.32mm of internal diameter, thickness 0.2~
1.00 μm or equivalent capillary column.
3. online gas chromatograph according to claim 1, it is characterised in that first detector and the second detection
Device is flame ionization ditector.
4. online gas chromatograph according to claim 1, it is characterised in that the multiple-way valve group is logical including two ten
Valve and a six-way valve.
5. online gas chromatograph according to claim 1, it is characterised in that the chromatographic column module also includes the 4th
Chromatographic column.
6. online gas chromatograph according to claim 5, it is characterised in that the 4th chromatographic column material is stainless
Steel, fixed liquid level Polyethylene Glycol（PEG-20M）, column length 5m, 0.20~0.32mm of internal diameter, 0.2~1.00 μm of thickness or equivalent hair
Capillary column.
7. online gas chromatograph according to claim 5, it is characterised in that first detector and the second detection
Device is flame ionization ditector.
8. online gas chromatograph according to claim 5, it is characterised in that the multiple-way valve group is logical including two ten
Valve and a six-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220105.9U CN206177905U (en) | 2016-11-14 | 2016-11-14 | Online gas chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220105.9U CN206177905U (en) | 2016-11-14 | 2016-11-14 | Online gas chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206177905U true CN206177905U (en) | 2017-05-17 |
Family
ID=58684436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621220105.9U Active CN206177905U (en) | 2016-11-14 | 2016-11-14 | Online gas chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206177905U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645461A (en) * | 2016-11-14 | 2017-05-10 | 苏州冷杉精密仪器有限公司 | Online detector for non-methane hydrocarbon and benzene compounds |
| CN110297058A (en) * | 2018-03-23 | 2019-10-01 | 常志兴 | A kind of multi-field gas chromatograph detector and gas chromatography |
| CN110646545A (en) * | 2019-10-10 | 2020-01-03 | 南京九岚纹仪器科技有限公司 | Valve-modulated full-two-dimensional gas chromatograph |
-
2016
- 2016-11-14 CN CN201621220105.9U patent/CN206177905U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645461A (en) * | 2016-11-14 | 2017-05-10 | 苏州冷杉精密仪器有限公司 | Online detector for non-methane hydrocarbon and benzene compounds |
| CN110297058A (en) * | 2018-03-23 | 2019-10-01 | 常志兴 | A kind of multi-field gas chromatograph detector and gas chromatography |
| CN110646545A (en) * | 2019-10-10 | 2020-01-03 | 南京九岚纹仪器科技有限公司 | Valve-modulated full-two-dimensional gas chromatograph |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240322 Address after: 518000, 10th Floor, Building F, Bantian International Center, No. 5 Huancheng South Road, Ma'antang Community, Bantian Street, Longgang District, Shenzhen City, Guangdong Province, 1008 Patentee after: Shenzhen Nenghuan Technology Co.,Ltd. Country or region after: China Address before: Room 401, Building 2, Science and Technology Innovation Park, No. 18 Suzhou River Road, Wujiang District, Suzhou City, Jiangsu Province, 215200 Patentee before: SUZHOU ABIES PRECISION INSTRUMENTS CO.,LTD. Country or region before: China |
|
| TR01 | Transfer of patent right |