CN107727779A - VOCs promotes resolver and method - Google Patents
VOCs promotes resolver and method Download PDFInfo
- Publication number
- CN107727779A CN107727779A CN201610655458.XA CN201610655458A CN107727779A CN 107727779 A CN107727779 A CN 107727779A CN 201610655458 A CN201610655458 A CN 201610655458A CN 107727779 A CN107727779 A CN 107727779A
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- China
- Prior art keywords
- vocs
- module
- carrier gas
- grabbers
- gas
- Prior art date
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- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000012159 carrier gas Substances 0.000 claims abstract description 36
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 16
- 239000001307 helium Substances 0.000 claims abstract description 8
- 229910052734 helium Inorganic materials 0.000 claims abstract description 8
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical group [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 239000012141 concentrate Substances 0.000 claims description 4
- 230000008676 import Effects 0.000 claims 1
- 238000010792 warming Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004094 preconcentration Methods 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- G01N2030/022—Column chromatography characterised by the kind of separation mechanism
- G01N2030/025—Gas chromatography
Landscapes
- 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
VOCs of the present invention promotes resolver and method, including carrier gas to open and close module, electron pressure control module, flow control module, the startup of flow velocity moment and closedown module composition, is to be inputted by two-way gas, gas exports all the way；It is the carrier gas from GC gas chromatographs or the output of GC MS GC-MSs all the way in input gas, another way is helium or nitrogen from steel cylinder.Export gas access VOCs grabbers, the output gas access chromatographic column of VOCs grabbers.It is to complete the opening and closing motion of carrier gas that the carrier gas, which opens and closes module, the electron pressure control module is the pressure adjustable for completing helium or nitrogen and stable output, the flow control module is stable output after the regulation as needed for completing helium or nitrogen gas flow velocity size, and it is to complete to promote opening and the closing of air-flow that the flow velocity moment, which starts with closedown module,.The present invention is to be separated the VOCs parsed in VOCs grabbers the injection chromatographic columns concentrated rather than disperseed.
Description
Technical field
The present invention relates to VOCs on-line analyses field, more particularly to VOCs in-line analyzers and air pre-concentration instrument, it is
VOCs in VOCs grabbers can be concentrated to a kind of unique apparatus parsed.
Background technology
Current VOCs in-line analyzers, it is that VOCs is captured in normal temperature and electronic cooling freezing using adsorbent, then
Chromatogram post separation is blown into carrier gas after being parsed by the method being rapidly heated, because the initial stage in heating is often more slow, then
Plus absorbent interior resistance so that the entrance chromatographic column that the VOCs between C2-C6 can not be concentrated, so as to cause C2-C6's
VOCs separating effects are bad, and occurring lying prone peak or even point be unable to do without, so as to influence the qualitative and quantitative of the VOCs between C2-C6.
The content of the invention
In view of the above-mentioned problems, the present invention, which provides a VOCs, promotes resolver, its purpose is sought to VOCs grabbers
（5）In VOCs by heating parse after concentrate injection chromatographic column（7）Separation, its method is to work as VOCs grabbers（5）It is complete
After paired VOCs capture, first pass through carrier gas and open and close module（1）Carrier gas is closed, then heat up VOCs grabbers（5）
So that VOCs is all parsed and is free in VOCs grabbers（5）It is interior, then started by flow velocity moment and closedown module（4）Moment
One larger air-flow is exported, by VOCs grabbers（5）In dissociate VOCs concentrate release VOCs grabbers（5）After close,
Module is opened and closed again by carrier gas（1）Carrier gas is opened, the VOCs of release is injected into chromatographic column using carrier gas（7）.This
Sample may be such that the VOCs between C2-C6 can also be separated well.
To reach above-mentioned purpose, the present invention is in GC gas chromatographs or GC-MS GC-MSs（6）The carrier gas of output,
Flow through VOCs grabbers（5）Into chromatographic column（7）Gas circuit on installed additional carrier gas open and close module（1）, electron pressure control
Molding block（2）, flow velocity adjustment module（3）, flow velocity moment start and closedown module（4）The promotion resolver of composition.Wherein institute
State carrier gas and open and close module（1）It is closing and the breakdown action for completing carrier gas；The electron pressure control module（2）It has been
Into the pressure adjustable of helium or nitrogen and stable output；The flow velocity adjustment module（3）It is that completion helium or nitrogen flow rate are adjustable
And stable output；The flow velocity moment starts and closedown module（4）It is the moment open and close action for completing air-flow.
Beneficial effect
There is VOCs to promote resolver, it is possible to realize and complete freezing using electronic cooling, because electronic cooling minimum temperature
- 60 degree can only be reached, want all to capture all VOCs in this temperature section, then it must just be adsorbed using adsorbent,
And speed influence and internal drag of the adsorbent in parsing due to heating, so that VOCs can not concentrate release, then
By chromatographic column（7）Just occur that C2-C6 peak type is unable to reach preferable effect during separation.There is VOCs to promote resolver
Solution this problem that afterwards can be easy, thus can by electronic cooling technology be applied to VOCs in-line analyzers and
On air pre-concentration instrument, the situation for needing liquid nitrogen as refrigerant is thoroughly broken away from.
Brief description of the drawings
Referring to the drawings, the present invention is just easier to understand, and these accompanying drawings are merely for illustration the technology of the present invention
Scheme, and be not intended to and protection scope of the present invention is construed as limiting.
Fig. 1 is the structure diagram of the present invention.
Embodiment
The explanation of following examples, the optional implementation of the present invention is described to instruct how those skilled in the art implement
It is of the invention with reproducing.In order to instruct technical scheme, simplify or eliminate some conventional aspects.People in the art
Member it should be understood that from these implementations modification and replacement will within the scope of the invention, thus the invention is not limited in
Following implementations.
Embodiment：
As shown in figure 1, VOCs promotes resolver, including carrier gas to open and close module（1）, electron pressure control module（2）、
Flow velocity adjustment module（3）, flow velocity moment start and closedown module（4）Composition；
The carrier gas opens and closes module（1）It is the closing and unlatching for completing carrier gas, its inlet end is and GC gas chromatographs
Or GC-MS GC-MSs（6）The carrier gas of output is connected, and output end is and the startup of flow velocity moment and closedown module（4）Output
VOCs grabbers are accessed after end is in parallel（5）；
The electron pressure control module（2）It is that gas pressure is stable in setting value, its input is and steel cylinder helium or steel
Bottle nitrogen is connected, and its output end is and flow velocity adjustment module（3）Input be connected；
The flow velocity adjustment module（3）Flow speed value of the flow speed stability in setting for completing helium or nitrogen, its output end be with
Flow velocity moment starts and closedown module（4）Input be connected；
The flow velocity moment starts and closedown module（4）It is to complete to close after the flow speed value moment of setting is opened, its output end
It is to open and close module with carrier gas（1）Output end parallel connection after access VOCs grabbers（5）；
Above-mentioned VOCs promotes the action process of resolver as follows：
State when not working is：Carrier gas opens and closes module（1）It is to be in opening, flow velocity moment starts with closing mould
Block（4）It is to be closed；
Only when VOCs grabbers（5）VOCs captures are finished, started working when will parse, its job step is：It will first carry
Gas opens and closes module（1）It is closed, then waits heating VOCs grabbers（5）During to set temperature value, flow velocity
Moment starts and closedown module（4）Moment closing again after moment opens, now one larger air-flow enters VOCs grabbers
（5）, VOCs grabbers will be free in（5）In the release VOCs grabbers concentrated under the promotion of one airflow of VOCs
（5）, now carrier gas open and close module（1）Opening immediately is in again, the VOCs of release is injected into chromatogram using carrier gas
Post（7）Separation.It so may be such that the entrance chromatographic column that all VOCs can be concentrated（7）, so as to obtain good separating effect.
By above-described embodiment, the present invention should be understood that：The purpose to be reached to invention, technical scheme and beneficial
Effect has carried out further details of explanation, these are only embodiments of the invention, is not intended to limit the present invention, every
Within the spiritual principles of the present invention, any modification, equivalent substitution and improvements made etc., the guarantor of the present invention should be included in
Within the scope of shield.
Claims (7)
1. a kind of VOCs promotes resolver and method, including carrier gas to open and close module（1）, electron pressure control module
（2）, flow control module（3）, flow velocity moment start and closedown module（4）Composition；Wherein carrier gas opens and closes module（1）'s
Import is and GC gas chromatographs or GC-MS GC-MSs（6）The carrier gas of output is connected, and carrier gas opens and closes module（1）
Outlet be and flow velocity moment start and closedown module（4）Outlet parallel connection after with VOCs grabbers（5）One end be connected, electronics
Pressure control module（2）Input be to be connected with steel cylinder helium or steel cylinder nitrogen, electron pressure control module（2）Output end
It is and flow control module（3）Input be connected, flow control module（3）Output end be and flow velocity moment start and close
Module（4）Input be connected, VOCs grabbers（5）The other end be and chromatographic column（7）One end be connected, its method of work is
When VOCs grabbers（5）After completing to VOCs capture, first pass through carrier gas and open and close module（1）Carrier gas is closed, then
Heat up VOCs grabbers（5）When reaching setting value, flow velocity moment is started and closedown module（4）Open, moment export one compared with
Big air-flow, by VOCs grabbers（5）In dissociate VOCs concentrate release VOCs grabbers（5）After close, again by load
Gas opens and closes module（1）Carrier gas is opened, the VOCs of release is injected into chromatographic column using carrier gas（7）.
2. VOCs according to claim 1 promotes resolver and method, it is characterised in that：In GC gas chromatographs or
GC-MS GC-MSs（6）The carrier gas of output, flow through VOCs grabbers（5）Into chromatographic column（7）Gas circuit on installed carrier gas additional
Open and close module（1）, electron pressure control module（2）, flow control module（3）, flow velocity moment start and closedown module
（4）The VOCs of composition promotes resolver.
3. VOCs according to claim 2 promotes resolver, it is characterised in that：The carrier gas opens and closes module
（1）It is the open and close for completing carrier gas.
4. VOCs according to claim 2 promotes resolver, it is characterised in that：The flow velocity moment starts with closing mould
Block（4）It is the moment for completing air-flow to start and close.
5. VOCs according to claim 2 promotes resolver, it is characterised in that：The flow control module（3）It has been
Stable output after into the regulation of gas flow rate size.
6. VOCs according to claim 1 promotes resolver and method, it opens and closes module to carrier gas（1）Work
Making method description is：In VOCs grabbers（5）When need not parse, all the time in opening, only in VOCs grabbers（5）It is complete
Closed before parsing is will heat up after VOCs capture in pairs, then in the startup of flow velocity moment and closedown module（4）After moment starts
Carrier gas opens and closes module when immediately closing again（1）Open.
7. VOCs according to claim 1 promotes resolver and method, flow velocity moment is started for it and closedown module（4）
Method of work description be：Flow velocity moment starts and closedown module（4）All the time it is closed, only in VOCs grabbers
（5）After completing to VOCs capture, when being warming up to the set temperature value of parsing, flow velocity moment starts and closedown module（4）Ability wink
Between start after immediately close again, exporting one during startup is more than 100 milliliters of air-flows per minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610655458.XA CN107727779A (en) | 2016-08-11 | 2016-08-11 | VOCs promotes resolver and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610655458.XA CN107727779A (en) | 2016-08-11 | 2016-08-11 | VOCs promotes resolver and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107727779A true CN107727779A (en) | 2018-02-23 |
Family
ID=61200331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610655458.XA Pending CN107727779A (en) | 2016-08-11 | 2016-08-11 | VOCs promotes resolver and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107727779A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006145295A (en) * | 2004-11-17 | 2006-06-08 | Varian Inc | Trace-amount gas detection by real-time gas chromatography mass spectrometry |
| CN101614713A (en) * | 2008-06-25 | 2009-12-30 | 中国石油天然气股份有限公司 | Online gas chromatography sampling device |
| CN103115989A (en) * | 2012-12-31 | 2013-05-22 | 聚光科技(杭州)股份有限公司 | Color spectrum sampling device and method |
| CN203241391U (en) * | 2013-05-09 | 2013-10-16 | 四川大学 | Device for rapidly detecting on-line enrichment gas chromatography of expiratory gas |
| CN105372365A (en) * | 2015-10-30 | 2016-03-02 | 中国烟草总公司郑州烟草研究院 | Method for online detection of ethylene oxide and propylene oxide in smoke of cigarettes |
| CN205404512U (en) * | 2016-01-22 | 2016-07-27 | 李勘 | Freezing continuous on line analyzer of VOC that collects of electron refrigeration second grade |
| CN206057265U (en) * | 2016-08-11 | 2017-03-29 | 李勘 | VOCs promotes resolver |
-
2016
- 2016-08-11 CN CN201610655458.XA patent/CN107727779A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006145295A (en) * | 2004-11-17 | 2006-06-08 | Varian Inc | Trace-amount gas detection by real-time gas chromatography mass spectrometry |
| CN101614713A (en) * | 2008-06-25 | 2009-12-30 | 中国石油天然气股份有限公司 | Online gas chromatography sampling device |
| CN103115989A (en) * | 2012-12-31 | 2013-05-22 | 聚光科技(杭州)股份有限公司 | Color spectrum sampling device and method |
| CN203241391U (en) * | 2013-05-09 | 2013-10-16 | 四川大学 | Device for rapidly detecting on-line enrichment gas chromatography of expiratory gas |
| CN105372365A (en) * | 2015-10-30 | 2016-03-02 | 中国烟草总公司郑州烟草研究院 | Method for online detection of ethylene oxide and propylene oxide in smoke of cigarettes |
| CN205404512U (en) * | 2016-01-22 | 2016-07-27 | 李勘 | Freezing continuous on line analyzer of VOC that collects of electron refrigeration second grade |
| CN206057265U (en) * | 2016-08-11 | 2017-03-29 | 李勘 | VOCs promotes resolver |
Non-Patent Citations (2)
| Title |
|---|
| 彭虹 等: "在线测量大气挥发性有机物的冷阱浓缩/热解析仪的研制", 分析化学, vol. 39, no. 10, pages 1482 - 1486 * |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20210730 Address after: 2 / F, Longxing Road, Dayawan West District, Huizhou, Guangdong 516000 Applicant after: Guangdong Antaike Technology Co.,Ltd. Address before: 518055 21 303 of West Li tea village, Shenzhen, Guangdong Applicant before: Li Kan |