CN105651896B - A kind of PID chromatographic analysis devices of packed column mode - Google Patents
A kind of PID chromatographic analysis devices of packed column mode Download PDFInfo
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- CN105651896B CN105651896B CN201610134305.0A CN201610134305A CN105651896B CN 105651896 B CN105651896 B CN 105651896B CN 201610134305 A CN201610134305 A CN 201610134305A CN 105651896 B CN105651896 B CN 105651896B
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- interfaces
- way valve
- sample gas
- pid
- velocity
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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
Abstract
The invention discloses a kind of PID chromatographic analysis devices of packed column mode, the device includes sample gas inlet, pressure plunger pump, clean air entrance, waste gas outlet, PID detector, filling splitter, velocity of sound metering hole, quantity tube, six-way valve, sampling pump, No.1 film filter, No. two film filters, thermal regeneration adsorption tanks and sample gas floss hole；The six-way valve includes No.1 interface, No. two interfaces, No. three interfaces, No. four interfaces, No. five interfaces and No. six interfaces, the sample gas inlet is connected on No. two film filters, the No.1 interface of No. two film filters and six-way valve connects, No. two interfaces of six-way valve and one end of quantity tube connect, the other end of quantity tube is connected on No. three interfaces of six-way valve, one end of sampling pump and six-way valve No. four interfaces are connected, and the other end of sampling pump is connected with sample gas floss hole.The present invention is based on photoionization technology, using velocity of sound current-limiting mode, gives a kind of new flow control method and detector configurations.
Description
Technical field
The present invention relates to gas detection technology field, specifically a kind of PID chromatographic analysis devices of packed column mode, it is applicable
In the detection of volatile organic matter.
Background technology
Modern society is more and more extensive to the detection demand of volatile organic matter, various chromatographic column and chromatogram detections
Method is largely developed and is applied to various occasions and environment.Alternative kind of carrier is more, fixer, adsorbent kind
Class is also a lot, advantageously accounts for the separation problem analysis of various component, is also the one of component separation using packed column mode
Individual big direction.
In the detection application of reality, demand side more and more proposes the requirement of on-line continuous detection；And examining
The convenient aspect of survey, miniaturization, portability to detecting instrument propose more requirements.Chromatographic process due to its to separation,
Detection, temperature control, the requirement of stream control are higher, are leading substantially using test in laboratory.Requirement pole of the chromatographic isolation to flow control
Height, it greatly limit miniaturization, the portability of system.
The content of the invention
The problem of existing for prior art, the present invention provide a kind of PID chromatographic analysis devices of packed column mode.
The technical scheme that the present invention solves the technical problem is to design a kind of PID chromatography dress of packed column mode
Put, it is characterised in that the device include sample gas inlet, pressure plunger pump, clean air entrance, waste gas outlet, PID detector,
Fill splitter, velocity of sound metering hole, quantity tube, six-way valve, sampling pump, No.1 film filter, No. two film filters, thermal regenerations
Adsorption tanks and sample gas floss hole；The six-way valve includes No.1 interface, No. two interfaces, No. three interfaces, No. four interfaces, No. five interfaces
With No. six interfaces, the sample gas inlet is connected on No. two film filters, and the No.1 interface of No. two film filters and six-way valve connects
Connecing, No. two interfaces of six-way valve and one end of quantity tube are connected, and the other end of quantity tube is connected on No. three interfaces of six-way valve,
One end of sampling pump and six-way valve No. four interfaces are connected, and the other end of sampling pump is connected with sample gas floss hole.
One end of the pressure plunger pump is connected with clean air entrance, and its other end is connected with thermal regeneration adsorption tanks,
Separately there is interface to be connected with No.1 film filter on thermal regeneration adsorption tanks, No. five interfaces of No.1 film filter and six-way valve connect
Connect, No. six interfaces of six-way valve are connected with velocity of sound metering hole, and the one end for filling splitter is connected with velocity of sound metering hole, its other end
It is connected on PID detector, PID detector is connected with waste gas outlet.
Compared with prior art, its advantage is the present invention：
(1) high pressure carrier gas is produced using live air filtration absorption and high pressure pump mode, it is not necessary to gas cylinder；
(2) using high pressure carrier gas caused by scene, using velocity of sound current-limiting method, there is provided extremely simple aspect reliably flows
Prosecutor method；
(3) adsorbent is by thermal regeneration, and ultraviolet caused ozone can be used to clean minute surface；Structure letter
It is single, it is reasonable in design.
Brief description of the drawings
Air flow direction signal when Fig. 1 is the structure and sampling, cleaning and reproduced state of a kind of embodiment of apparatus of the present invention
Figure.
Air flow direction schematic diagram when Fig. 2 is a kind of structure of embodiment of apparatus of the present invention and analyzes state.
In above figure：1 sample gas inlet, 2 pressure plunger pumps, 3 clean air entrances, 4 waste gas outlets, 5PID detectors, 6
Fill splitter, 7 velocity of sound metering holes, 8 quantity tubes, 9 six-way valves, 10 sampling pumps, 11 film filters, 12 film filters, 13 heating
Regenerative adsorption tank, 14 sample gas floss holes.
Embodiment
Below with reference to accompanying drawing, the present invention is described further, but the protection model of the present invention should not be limited with this
Enclose.
For convenience of explanation with understand technical scheme, involved term position below, such as up and down, left and right,
It is defined by the orientation shown by accompanying drawing.
The present invention provides a kind of PID chromatographic analysis devices of packed column mode (referring to Fig. 1-2, abbreviation device), its feature
It is, the device includes sample gas inlet 1, pressure plunger pump 2, clean air entrance 3, waste gas outlet 4, PID detector 5, filling
Splitter 6, velocity of sound metering hole 7, quantity tube 8, six-way valve 9, sampling pump 10,11, No. two film filters 12 of No.1 film filter, plus
Hot recycling adsorption tanks 13 and sample gas floss hole 14；The six-way valve 9 include No.1 interface, No. two interfaces, No. three interfaces, No. four
Interface, No. five interfaces and No. six interfaces, the sample gas inlet 1 are connected on No. two film filters 12, No. two film filters 12 with
The No.1 interface connection of six-way valve 9, No. two interfaces of six-way valve 9 are connected with one end of quantity tube 8, and the other end of quantity tube 8 connects
Be connected on No. three interfaces of six-way valve 9, one end of sampling pump 10 is connected with No. four interfaces of six-way valve 9, sampling pump 10 it is another
End is connected with sample gas floss hole 14；
One end of the pressure plunger pump 2 is connected with clean air entrance 3, and its other end connects with thermal regeneration adsorption tanks 13
Connect, separately there is interface to be connected with No.1 film filter 11 on thermal regeneration adsorption tanks 13, No.1 film filter 11 and the five of six-way valve 9
The connection of number interface, No. six interfaces of six-way valve 9 are connected with velocity of sound metering hole 7, fill one end and the velocity of sound metering hole 7 of splitter 6
Connection, its other end are connected on PID detector 5, and PID detector 5 is connected with waste gas outlet 4.
Apparatus of the present invention have three kinds of working conditions：
(1) sample and clean state
As shown in figure 1, stream is divided into two-way, pass through sample gas inlet 1, film filter 12, six-way valve 9, fixed all the way for sample gas
Buret 8, sampling pump 10, sample gas exhaust outlet 14 are sent out, and the sample gas of equivalent is rested on quantity tube by this stream each run；Another stream
Road is purgative gas stream, and pure air passes through clean air entrance 3, pressure plunger pump 2, thermal regeneration adsorption tanks 13, membrane filtration
Device 11, six-way valve 9, velocity of sound metering hole 7, filling splitter 6, PID detector 5, waste gas outlet 4 are discharged, and are passed through in cleaning state
The air that thermal regeneration adsorption tanks 13 purify, cleaning measurement stream, while PID detector 5 is using caused by uviol lamp therein
Ozone, clean window and ionisation chamber.
(2) sampling and reproduced state
As shown in figure 1, stream is divided into two-way, pass through sample gas inlet 1, film filter 12, six-way valve 9, fixed all the way for sample gas
Buret 8, sampling pump 10, sample gas exhaust outlet 14 are sent out, and the sample gas of equivalent is rested on quantity tube by this stream each run；Another stream
Road is purgative gas stream, and pure air passes through clean air entrance 3, pressure plunger pump 2, thermal regeneration adsorption tanks 13, membrane filtration
Device 11, six-way valve 9, velocity of sound metering hole 7, filling splitter 6, PID detector 5, waste gas outlet 4 are discharged, in reproduced state, heating
Regenerative adsorption tank, make the adsorbent reactivation in thermal regeneration adsorption tanks 13.
(3) state is analyzed
As shown in Fig. 2 stream is divided into two-way, all the way for sample gas by sample gas inlet 1, film filter 12, six-way valve 9, adopt
Sample pump 10, sample gas exhaust outlet 14 are sent out；Another stream is purgative gas stream, and pure air passes through clean air entrance 3, pressured column
Fill in pump 2, thermal regeneration adsorption tanks 13, film filter 11, six-way valve 9, quantity tube 8, velocity of sound metering hole 7, filling splitter 6, PID
Detector 5, waste gas outlet 4 are discharged, and quantitative gas is detected by PID detector in this process quantity tube 8.
The present invention is based on photoionization technology, using velocity of sound current-limiting mode, gives a kind of new flow control method and detection
Device constructs, and can be easy to miniaturization and on-line checking with the stream control structure of greatly simplified system.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and changed.Therefore, the invention is not limited in embodiment disclosed and described above, to the present invention's
Some modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although used in this specification
Some specific terms, but these terms are merely for convenience of description, do not form any restrictions to the present invention.
The present invention does not address part and is applied to prior art.
Claims (1)
1. a kind of PID chromatographic analysis devices of packed column mode, it is characterised in that the device includes sample gas inlet, pressure plunger
Pump, clean air entrance, waste gas outlet, PID detector, filling splitter, velocity of sound metering hole, quantity tube, six-way valve, sampling
Pump, No.1 film filter, No. two film filters, thermal regeneration adsorption tanks and sample gas floss hole；The six-way valve connects comprising No.1
Mouth, No. two interfaces, No. three interfaces, No. four interfaces, No. five interfaces and No. six interfaces, the sample gas inlet are connected to No. two membrane filtrations
On device, the No.1 interface connection of No. two film filters and six-way valve, No. two interfaces of six-way valve and one end of quantity tube connect, fixed
The other end of buret is connected on No. three interfaces of six-way valve, and one end of sampling pump and six-way valve No. four interfaces connect, sampling
The other end of pump is connected with sample gas floss hole；
One end of the pressure plunger pump is connected with clean air entrance, and its other end is connected with thermal regeneration adsorption tanks, heating
Separately there is interface to be connected with No.1 film filter on regenerative adsorption tank, No. five interfaces connection of No.1 film filter and six-way valve, six
No. six interfaces of port valve are connected with velocity of sound metering hole, and the one end for filling splitter is connected with velocity of sound metering hole, the connection of its other end
Onto PID detector, PID detector is connected with waste gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610134305.0A CN105651896B (en) | 2016-03-10 | 2016-03-10 | A kind of PID chromatographic analysis devices of packed column mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610134305.0A CN105651896B (en) | 2016-03-10 | 2016-03-10 | A kind of PID chromatographic analysis devices of packed column mode |
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| Publication Number | Publication Date |
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| CN105651896A CN105651896A (en) | 2016-06-08 |
| CN105651896B true CN105651896B (en) | 2018-04-03 |
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| CN201610134305.0A Expired - Fee Related CN105651896B (en) | 2016-03-10 | 2016-03-10 | A kind of PID chromatographic analysis devices of packed column mode |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442823A (en) * | 2016-09-14 | 2017-02-22 | 钢研纳克检测技术有限公司 | VOC (volatile organic compound) analyzer with carrier gas regeneration function |
| CN108195979A (en) * | 2018-02-26 | 2018-06-22 | 汉威科技集团股份有限公司 | Air VOCs on-line preconcentrations sampling device and method |
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| RU2207563C2 (en) * | 2001-08-03 | 2003-06-27 | Конструкторско-технологический институт геофизического и экологического приборостроения СО РАН | Filter for gas cleaning |
| CN1456882A (en) * | 2003-05-19 | 2003-11-19 | 北京清科园环境科技有限公司 | Photoionization gas analyzer (gas chromatograph) |
| WO2005074584A2 (en) * | 2004-02-02 | 2005-08-18 | Sionex Corporation | Compact sample analysis systems and related methods using combined chromatography and mobility spectrometry techniques |
| CN2881629Y (en) * | 2006-04-03 | 2007-03-21 | 北京东西分析仪器有限公司 | Optical ionization detector |
| CN102103094A (en) * | 2010-12-31 | 2011-06-22 | 聚光科技(杭州)股份有限公司 | Monitoring system for element in gas in pipeline and operation method thereof |
| CN203870078U (en) * | 2014-04-30 | 2014-10-08 | 北京北分瑞利分析仪器(集团)有限责任公司 | Gas chromatography separating system |
| CN204228670U (en) * | 2014-11-26 | 2015-03-25 | 湖北索瑞电气有限公司 | A kind of surrounding air makes the Gas in Oil of Transformer on-line monitoring system of carrier gas |
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2016
- 2016-03-10 CN CN201610134305.0A patent/CN105651896B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2207563C2 (en) * | 2001-08-03 | 2003-06-27 | Конструкторско-технологический институт геофизического и экологического приборостроения СО РАН | Filter for gas cleaning |
| CN1456882A (en) * | 2003-05-19 | 2003-11-19 | 北京清科园环境科技有限公司 | Photoionization gas analyzer (gas chromatograph) |
| WO2005074584A2 (en) * | 2004-02-02 | 2005-08-18 | Sionex Corporation | Compact sample analysis systems and related methods using combined chromatography and mobility spectrometry techniques |
| CN2881629Y (en) * | 2006-04-03 | 2007-03-21 | 北京东西分析仪器有限公司 | Optical ionization detector |
| CN102103094A (en) * | 2010-12-31 | 2011-06-22 | 聚光科技(杭州)股份有限公司 | Monitoring system for element in gas in pipeline and operation method thereof |
| CN203870078U (en) * | 2014-04-30 | 2014-10-08 | 北京北分瑞利分析仪器(集团)有限责任公司 | Gas chromatography separating system |
| CN204228670U (en) * | 2014-11-26 | 2015-03-25 | 湖北索瑞电气有限公司 | A kind of surrounding air makes the Gas in Oil of Transformer on-line monitoring system of carrier gas |
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| CN105651896A (en) | 2016-06-08 |
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