CN206399911U - A kind of air V OCs monitors chromatograph on-line - Google Patents
A kind of air V OCs monitors chromatograph on-line Download PDFInfo
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- CN206399911U CN206399911U CN201720075199.3U CN201720075199U CN206399911U CN 206399911 U CN206399911 U CN 206399911U CN 201720075199 U CN201720075199 U CN 201720075199U CN 206399911 U CN206399911 U CN 206399911U
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- way valve
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Abstract
Chromatograph, including gas source module, sample block, detection module and ten-way valve are monitored on-line the utility model discloses a kind of air V OCs, and the gas source module includes three gas circuits：Carrier gas gas circuit, the detection module is connected by the ten-way valve；Gas circuit is purged, a pump source system is connected and then connects the ten-way valve；Gas circuit is vented, connection ten-way valve is finally emptied；The sample block connects an absorption analytic tube and then connects ten-way valve；The detection module includes a detection means, and the detection means connects a nitrogen gas circuit and an air gas circuit respectively.The utility model be it is a kind of the chromatograph that VOCs is monitored on-line in air can be carried out in working site, sample enters after system, directly detected, greatly reduces the Difficulty Index requirement to Sample storage, small volume, it is easy to repair, accuracy of detection height.
Description
Technical field
The utility model is a kind of chromatograph, more particularly to a kind of air V OCs on-line monitorings mass spectrograph.
Background technology
Gas chromatograph is the device that biased sample is carried out to separation analysis detection, and carrier gas carries desire in gas chromatograph
The sample of separation separates each component in sample, is then detected, passed through respectively through detector by the stationary phase in chromatographic column
Data collecting system collects the peak height or area of each component in sample, obtains needing the content of component by calculating.
Traditional gas chromatograph is carrying out empty parsing.Carried out after the sampling after a time now of the problem of this method
The authenticity for analyzing the sample reflected is poor, operates more complicated；If resolution speed is not fast enough simultaneously, it can influence point
Quantitative effect is analysed, while sample introduction could complete analysis to needs twice.In gas during VOCs detection, it must be inhaled at the scene with adsorption tube
It is attached, it is then more complicated by being resolved to chromatograph analysis, the process operation with pyrolysis analyzer to laboratory, to the behaviour of laboratory technician
Make level requirement higher.
Utility model content
The utility model provides a kind of air V OCs on-line monitorings chromatograph, once completes sample introduction and detection and analysis, instrument
Equipment volume is small, it is easy to repair, and has wide range of applications.
The utility model is realized by following technical scheme：
A kind of air V OCs monitors chromatograph, including gas source module, sample block, detection module and ten-way valve, institute on-line
Stating gas source module includes three gas circuits：Carrier gas gas circuit, the detection module is connected by the ten-way valve；Purge gas circuit, connection
One pump source system and then the connection ten-way valve；Gas circuit is vented, connection ten-way valve is finally emptied；The sample block connection one
Individual absorption analytic tube and then connection ten-way valve；The detection module includes a detection means, and the detection means is connected respectively
One nitrogen gas circuit and an air gas circuit；The chromatograph includes sample introduction state and sampling two kinds of pipeline connecting modes of state.
Three gas circuits and sample block of the carrier gas module include the compressed air source unit being sequentially connected, and take off hydrocarbon purification dress
Put, flow control meter.
The pump source system includes the pumping source threeway being sequentially connected, mass flowmenter and pumping source device.
Each connection takes off hydrocarbon purifier and then connects described the nitrogen gas circuit and air gas circuit of the detection module respectively
Detection means.
The chromatographic sampling state connected mode is：Sample enters de- hydrocarbon by the compressed air source unit of the sample block
Purifier, by flow control meter, by a threeway, into the 9th mouthful of ten-way valve, into the 8th mouthful of ten-way valve, into suction
Attached analytic tube, into ten-way valve first, into the tenth mouthful of ten-way valve, eventually enters into pump source system；The purging gas circuit connection
Pump source system；The carrier gas gas circuit enters second mouthful of ten-way valve, into the 3rd mouthful of ten-way valve, into second chromatographic column, enters
Enter detection means；The emptying gas circuit enters the 6th mouthful of ten-way valve, into the 7th mouthful of ten-way valve, into first chromatographic column,
Into the 4th mouthful of ten-way valve, into the 5th mouthful of ten-way valve, final emptying.
The chromatographic sample introduction state connected mode is：The carrier gas gas circuit connects second mouthful of ten-way valve, logical into ten
Valve first, meets with the sample that is entered by sample block, goes successively to adsorb analytic tube, into the 8th mouthful of ten-way valve, enters
Enter the 7th mouthful of ten-way valve, into the first chromatographic column, into the 4th mouthful of ten-way valve, into the 3rd mouthful of ten-way valve, into the second chromatogram
Post, into detection module.
The flow control meter is that EPC electronic flows control meter.
The detection means is flame ionization ditector.
First chromatographic column be EC-WAX (5m × 0.32mm × 0.25um), the second chromatographic column be EC-WAX (30m ×
0.32mm × 0,25um).
The absorption analytic tube is equipped with Tenax-TA adsorption tube.
The beneficial effects of the utility model are：
1. the utility model is can to complete the chromatograph of efficient detection in working site, it is easy to carried and maintenance.
2. being adapted to complicated working site, accuracy of detection is high.
Brief description of the drawings
Fig. 1 is the connecting line schematic diagram that the utility model air V OCs on-line monitoring mass spectrographs sample state
Fig. 2 is the connecting line schematic diagram that the utility model air V OCs monitors mass spectrograph sample introduction state on-line
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
It is the connecting line schematic diagram that the utility model air V OCs on-line monitoring mass spectrographs sample state such as Fig. 1, including
Gas source module, sample block, detection module and ten-way valve V1, gas source module include three gas circuits, carrier gas gas circuit, the carrier gas gas circuit
Including carrier gas compressed air source unit 27, carrier gas takes off hydrocarbon purifier 28, carrier gas flux control meter 29；Purging gas circuit, there is provided a kind of gas
Purge function, including source purge gas device 21, the de- hydrocarbon purifier 20 of purging, purge flow rate control meter 19；Gas circuit is vented, including
It is vented compressed air source unit 22, the de- hydrocarbon purifier 23 of emptying, emptying flow control meter 24.Carrier gas gas circuit connection detection module, detection
Module includes detection means 35, and detection means 35 connects a nitrogen gas circuit and an air gas circuit, the source nitrogen of nitrogen gas circuit
31 take off hydrocarbon purifier 32 by nitrogen enters detection means 35, and the air-source 33 of air gas circuit takes off hydrocarbon purifier by the same period
34 enter detection means 35.Purge gas circuit and connect a pump source system, pump source system includes the pumping source threeway 16 being sequentially connected, matter
Measure flowmeter 17 and pumping source device 18.Sample block includes sample compressed air source unit 11, and sample takes off hydrocarbon purifier 12, sample flow
Control meter 13, connects a sample triple valve 14 afterwards.Chromatograph of the present utility model includes sample introduction state and sampling state two
Plant pipeline connecting mode.
It is the connecting line schematic diagram that the utility model air V OCs on-line monitoring mass spectrographs sample state, sample such as Fig. 1
By sample compressed air source unit 11, sample takes off hydrocarbon purifier 12, and sample flow control counts 13, and sample triple valve 14 enters, and enters
The 9th mouthful 9 of ten-way valve, into the 8th mouthful 8 of ten-way valve, into absorption analytic tube 15, into ten-way valve first 1, into ten-way valve
Tenth mouthful 10, into pumping source threeway 16, mass flowmenter 17 and pumping source device 18.In the process, purging gas circuit provides continuous
Purging, gas is by source purge gas device 21, and the de- hydrocarbon purifier 20 of purging, purge flow rate control meter 19 enters, and connects pump
Source threeway 16.Gas is by carrier gas compressed air source unit 27, and carrier gas takes off hydrocarbon purifier 28, and carrier gas flux control meter 29 enters ten-way valve
Second mouthful 2, into the 3rd mouthful 3 of ten-way valve, into the second chromatographic column 30, into detection means 35；Gas is filled by being vented source of the gas
Put 22, the de- hydrocarbon purifier 23 of emptying, emptying flow control meter 24 enters ten-way valve the 6th mouthful 6, into the 7th mouthful 7 of ten-way valve,
Into the first chromatographic column 26, into the 4th mouthful 4 of ten-way valve, into the 5th mouthful 5 of ten-way valve, 25 are finally vented.
Such as Fig. 2, it is the connecting line schematic diagram that the utility model air V OCs monitors mass spectrograph sample introduction state on-line, works as figure
Sample in 1 enters absorption analytic tube 15 by sample block, and then enters after ten-way valve V1, by the state of ten-way valve by Fig. 1
Sampling state switch to Fig. 2 sample introduction state, now carrier gas gas circuit passes through carrier gas flux control meter 29 and enters ten-way valves second
Mouthfuls 2, into ten-way valve first 1, met with the sample that is entered by sample block, go successively to adsorb analytic tube 15, enter
The 8th mouthful 8 of ten-way valve, into the 7th mouthful 7 of ten-way valve, into the first chromatographic column 26, into the 4th mouthful 4 of ten-way valve, into ten-way valve
3rd mouthful 3, into the second chromatographic column 30, into detection module, and then complete detection.
Wherein, above-mentioned all flow control meters are that EPC electronic flows control meter.Detection means 35 is examined for hydrogen flameionization
Survey device.First chromatographic column 26 be EC-WAX (5m × 0.32mm × 0.25um), the second chromatographic column 30 be EC-WAX (30m ×
0.32mm × 0,25um).Absorption analytic tube 15 is equipped with Tenax-TA adsorption tube.
Above example is merely to illustrate the technical solution of the utility model and unrestricted, have references to preferred embodiment to this
Utility model is described in detail, it will be understood by those within the art that, can be to technical side of the present utility model
Case is modified or equivalent substitution, and without departing from the objective and scope of technical solutions of the utility model, it all should cover in this reality
Among new right.
Claims (7)
1. a kind of air V OCs monitors chromatograph, including gas source module, sample block, detection module and ten-way valve on-line, it is special
Levy and be：The gas source module includes three gas circuits：Carrier gas gas circuit, the detection module is connected by the ten-way valve；Purging
Gas circuit, connects a pump source system and then connects the ten-way valve；Gas circuit is vented, connection ten-way valve is finally emptied；The sample
Module connects an absorption analytic tube and then connects ten-way valve；The detection module includes a detection means, the detection dress
Put and connect a nitrogen gas circuit and an air gas circuit respectively；The chromatograph includes sample introduction state and sampling two kinds of pipelines of state
Connected mode；Three gas circuits and sample block of the carrier gas module include the compressed air source unit being sequentially connected, and take off hydrocarbon purification dress
Put, flow control meter；The pump source system includes the pumping source threeway being sequentially connected, mass flowmenter and pumping source device；The inspection
The nitrogen gas circuit and air gas circuit for surveying module each connect de- hydrocarbon purifier and then connect the detection means respectively.
2. air V OCs as claimed in claim 1 monitors chromatograph on-line, it is characterised in that：The chromatographic sampling state
Connected mode is：Sample enters de- hydrocarbon purifier by the compressed air source unit of the sample block, by flow control meter, passes through
One threeway, into the 9th mouthful of ten-way valve, into the 8th mouthful of ten-way valve, into absorption analytic tube, into ten-way valve first, enters
Enter the tenth mouthful of ten-way valve, eventually enter into pump source system；The purging gas circuit connection pump source system；The carrier gas gas circuit enters ten and led to
Second mouthful of valve, into the 3rd mouthful of ten-way valve, into second chromatographic column, into detection means；The emptying gas circuit enters ten
The 6th mouthful of port valve, into the 7th mouthful of ten-way valve, into first chromatographic column, into the 4th mouthful of ten-way valve, into ten-way valve
Five mouthfuls, final emptying.
3. air V OCs as claimed in claim 1 monitors chromatograph on-line, it is characterised in that：The chromatographic sample introduction state
Connected mode is：The carrier gas gas circuit connects second mouthful of ten-way valve, into ten-way valve first, with being entered by sample block
Sample meets, and goes successively to adsorb analytic tube, into the 8th mouthful of ten-way valve, into the 7th mouthful of ten-way valve, into the first chromatographic column,
Into the 4th mouthful of ten-way valve, into the 3rd mouthful of ten-way valve, into the second chromatographic column, into detection module.
4. air V OCs as claimed in claim 1 monitors chromatograph on-line, it is characterised in that：The flow control meter is EPC
Electronic flow control meter.
5. air V OCs as claimed in claim 1 monitors chromatograph on-line, it is characterised in that：The detection means is hydrogen flame
Ionization detector.
6. air V OCs as claimed in claim 2 monitors chromatograph on-line, it is characterised in that：First chromatographic column is EC-
WAX (5m × 0.32mm × 0.25um), the second chromatographic column is EC-WAX (30m × 0.32mm × 0,25um).
7. air V OCs as claimed in claim 1 monitors chromatograph on-line, it is characterised in that：The absorption analytic tube is equipped with
Tenax-TA adsorption tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720075199.3U CN206399911U (en) | 2017-01-19 | 2017-01-19 | A kind of air V OCs monitors chromatograph on-line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720075199.3U CN206399911U (en) | 2017-01-19 | 2017-01-19 | A kind of air V OCs monitors chromatograph on-line |
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| CN206399911U true CN206399911U (en) | 2017-08-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088921A (en) * | 2017-12-12 | 2018-05-29 | 优泰科技（深圳）有限公司 | VOC on-line computing models |
-
2017
- 2017-01-19 CN CN201720075199.3U patent/CN206399911U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088921A (en) * | 2017-12-12 | 2018-05-29 | 优泰科技（深圳）有限公司 | VOC on-line computing models |
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