CN108776189A - The concentrating instrument of auto-activation continuous sampling - Google Patents
The concentrating instrument of auto-activation continuous sampling Download PDFInfo
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- CN108776189A CN108776189A CN201810314026.1A CN201810314026A CN108776189A CN 108776189 A CN108776189 A CN 108776189A CN 201810314026 A CN201810314026 A CN 201810314026A CN 108776189 A CN108776189 A CN 108776189A
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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
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
- G01N30/08—Preparation using an enricher
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
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Abstract
The present invention provides the concentrating instrument of auto-activation continuous sampling, is realized by following technological means：Cold-trap No.1（1）Upper end inlet line is threadedly coupled a six logical valves（2）No.1 valve port, cold-trap No.1（1）Lower end outlet line is threadedly coupled a six logical valves（2）No. four valve ports, a six logical valves（2）No. two valve ports be threadedly coupled heat traced pipeline（3）Left end, heat traced pipeline（3）Right end is threadedly coupled chromatographic column all the way by threeway（5）Left end, chromatographic column（5）Right end connecting detection device, heat traced pipeline（3）Right end is threadedly coupled shunting meter by threeway another way（4）Left end.Advantageous effect of the present invention：Target substance in air is carried out enrichment concentration, is detected after parsing, to reduce the detection limit of target substance, this device can detect the target substance of super low concentration；Enrichment concentration has reduction detection error and super low concentration detection function, advantage small, easy to control.
Description
Technical field
The present invention relates to the technical field of atmospheric monitoring and fixed source emission detection, especially auto-activation continuous samplings
Concentrating instrument.
Background technology
Existing equipment is unable to on-line continuous use, and single injected sampling is needed to readjust again, and cannot be continuously enriched with, greatly
Gas monitors and the technology of fixed source emission detection needs to improve, and is now designed as three layers of cooling piece refrigeration and nonstorage calorifier and sets
There is touch screen, has the advantages that small, easy to control.
Invention content
The purpose of the present invention is to provide using the auto-activation continuous sampling for being enriched with increase cold-trap device and blowing function
Concentrating instrument.The present invention is realized by following technological means：Cold-trap No.1 upper end inlet line is threadedly coupled a six logical valves
No.1 valve port, cold-trap No.1 lower end outlet line is threadedly coupled No. four valve ports of a six logical valves, No. two valve ports of a six logical valves
It is threadedly coupled heat traced pipeline left end, heat traced pipeline right end is threadedly coupled chromatographic column left end, chromatography by threeway all the way
The right end connecting detection device of column, heat traced pipeline right end are threadedly coupled shunting meter left end by threeway another way, and shunting meter right end connects
Blow-down pipe is connect, No. three valve port pipelines of a six logical valves are threadedly coupled No. two valve ports of six logical two valves, No. five valves of a six logical valves
By threeway, pipeline is threadedly coupled two valve upper end of threeway to mouth all the way, and another way pipeline is threadedly coupled two valve left end of two-way, threeway two
Valve middle-end is threadedly coupled sampling pump left end by sample streams gauge pipeline, and sampling pump right end connects blow-down pipe, under two valve of threeway
By threeway, pipeline is threadedly coupled six No. five valve ports for leading to two valves all the way at end, and two valve of threeway passes through threeway another way and connects two-way four
Valve left end, four valve right end of two-way connect two valve right end of two-way by threeway all the way, and four valve right end of two-way passes through threeway another way pipe
Line is threadedly coupled suspended body flowmeter upper end, and by threeway, pipeline is threadedly coupled the carrier gas flux meter right side all the way for suspended body flowmeter lower end
End, carrier gas flux meter left end pipeline are threadedly coupled six and lead to No. two three valves of valve, and suspended body flowmeter lower end is passed through by threeway another way
Pressure-regulating valve pipeline is threadedly coupled nitrogen gas tank, and by threeway, pipeline is threadedly coupled two-way one to six valve ports of six logical No.1 valves all the way
Valve right end, one valve left end of two-way connect blow-down pipe, and six valves of six logical No.1 valves is held to connect one valve of threeway by threeway another way
Upper end, one valve middle-end hose of threeway connect pneumatic filter right end, and pneumatic filter left end connects sample introduction pipeline, under one valve of threeway
By threeway, pipeline is threadedly coupled three valve right end of two-way all the way at end, and three valve left end of two-way connects blow-down pipe, one valve lower end of threeway
Six six valve ports for leading to No. two valves are threadedly coupled by threeway another way pipeline, it is No. two logical that No. two upper end pipelines of cold-trap are threadedly coupled six
One valve port of valve, No. two lower end pipelines of cold-trap are threadedly coupled six four valve ports for leading to No. two valves；Six logical No.1 valve grafting drive electromagnetism
The valve body of one valve left end, drive magnetic valve is controlled equipped with gas circuit, and No. two grafting of cold-trap drive two valve left end of electromagnetism, drive electromagnetism
The valve body of two valves is controlled equipped with gas circuit.
Six step of technological process：The first step initializes, and opens the initialization of power supply instrument, at this time valve body, post case, FID detections
Device, heat traced pipeline are begun to warm up, and cold-trap No.1 starts to cool down, and cold-trap two is waited for；Second step cold-trap No.1 concentrates
Concentration Sampling, one valve of threeway and two valve of threeway are communicated with cold-trap No.1, and sampling pump is opened, and sample is concentrated richness in cold-trap No.1
Collection, while cold-trap two starts to be pre-chilled；Third step parsing, enrichment method is completed after 30 minutes, passes through one valve of threeway and threeway
Two Vavle switchings are communicated to No. two with cold-trap, and cold-trap two starts to sample, and cold-trap No.1 begins to warm up parsing two minutes, and concentration is rich
The sample collected in cold-trap No.1 releases at high temperature；4th stepping sample is rotated by one valve of compressed air-driven electromagnetism
Six logical No.1 valves, the sample parsed from cold-trap No.1 under the drive of carrier gas by heat traced pipeline enter chromatograph into
Row detection；5th step blowback activates, and six logical No.1 valves are reduced to original state after sampling, at this time one valve of two-way and two-way two
Valve is opened, and activates purging cold-trap No.1 with carrier gas at high operating temperatures, remaining sample is purged out completely from one valve of two-way,
One valve of two-way and two valve of two-way are closed after the completion of activation；6th step is pre-chilled, and starts to cool down after the completion of the activation of cold-trap No.1, for next time
Enrichment method prepare；7th step recycles, and cold-trap No.1 starts the cycle from flow two to six after the completion of six step flows, cold
During trap No.1 recycles, cold-trap two also repeats the above flow, to realize the process of continuous concentration sampling.
Advantageous effect of the present invention：Target substance in air is carried out enrichment concentration, is detected after parsing, to reduce
The detection limit of target substance, the present invention can detect the target substance of super low concentration；Enrichment concentration has reduction detection error
And super low concentration detection function, advantage small, easy to control.
Description of the drawings
Fig. 1 is the flow diagram of the present invention.
Specific implementation mode
As shown in Figure 1, the concentrating instrument of auto-activation continuous sampling, mainly by cold-trap No.1 1, six logical No.1 valves 2, heat tracing
Pipeline 3, shunting meter 4, chromatographic column 5, one valve 6 of driving electromagnetism, one valve 7 of two-way, two valve 8 of two-way, sample streams gauge 9, sampling
Pump 10, one valve 11 of threeway, two valve 12 of threeway, pneumatic filter 13, three valve 14 of two-way, four valve 15 of two-way, driving electromagnetism two valve 16,
Suspended body flowmeter 17, cold-trap No. two 18, six lead to No. two valves 19, carrier gas flux meter 20, pressure-regulating valve 21 and nitrogen gas tank 22 and constitute.
1 upper end inlet line of cold-trap No.1 is threadedly coupled the No.1 valve port of a six logical valves 2, and 1 lower end outlet line screw thread of cold-trap No.1 connects
No. four valve ports of a six logical valves 2 are connect, No. two valve ports of a six logical valves 2 are threadedly coupled 3 left end of heat traced pipeline, 3 right end of heat traced pipeline
It is threadedly coupled 5 left end of chromatographic column, the right end connecting detection device of chromatographic column 5,3 right end of heat traced pipeline all the way by threeway
Shunting 4 left ends of meter are threadedly coupled by threeway another way, shunting 4 right ends of meter connect blow-down pipe, No. three valve ports of a six logical valves 2
Pipeline is threadedly coupled No. two valve ports of six logical two valves 19, and by threeway, pipeline is threadedly coupled No. five valve ports of a six logical valves 2 all the way
Two valve of threeway, 12 upper end, another way pipeline are threadedly coupled two valve of two-way, 8 left end, and two valve of threeway, 12 middle-end passes through sample streams gauge 9
Pipeline is threadedly coupled 10 left end of sampling pump, and sampling pump right end connects blow-down pipe, and two valve of threeway, 12 lower end is managed all the way by threeway
Line is threadedly coupled No. five valve ports of six logical two valves 19, and two valve 12 of threeway connects four valve of two-way, 15 left end by threeway another way, and two
Logical four valves, 15 right end connects two valve of two-way, 8 right end by threeway all the way, and four valve of two-way, 15 right end passes through threeway another way pipeline spiral shell
Line connects 17 upper end of suspended body flowmeter, and by threeway, pipeline is threadedly coupled 20 right side of carrier gas flux meter to 17 lower end of suspended body flowmeter all the way
End, 20 left end pipeline of carrier gas flux meter are threadedly coupled six and lead to No. two 19 3 valves of valve, and 17 lower end of suspended body flowmeter is another by threeway
Road is threadedly coupled nitrogen gas tank 22 by 21 pipeline of pressure-regulating valve, and six valve ports of six logical No.1 valves 2 pass through threeway pipeline spiral shell all the way
Line connects one valve of two-way, 7 right end, and one valve of two-way, 7 left end connects blow-down pipe, holds six valves of six logical No.1 valves 2 another by threeway
Road connects one valve of threeway, 11 upper end, and one valve of threeway, 11 middle-end hose connects 13 right end of pneumatic filter, 13 left end of pneumatic filter
Sample introduction pipeline is connected, pipeline is threadedly coupled three valve of two-way, 14 right end, three valve 14 of two-way all the way by threeway for one valve of threeway, 11 lower end
Left end connects blow-down pipe, and one valve of threeway, 11 lower end is threadedly coupled six six valves for leading to No. two valves 19 by threeway another way pipeline
Mouthful, No. two 18 upper end pipelines of cold-trap are threadedly coupled six valve ports for leading to No. two valves 19, and No. two 18 lower end pipelines of cold-trap are threadedly coupled
Six lead to four valve ports of No. two valves 19；Six one valves of logical 2 grafting of No.1 valve driving electromagnetism, 6 left end, the valve body of drive magnetic valve 6 are equipped with
Gas circuit controls, and No. two 18 grafting driving electromagnetism, two valve, 16 left ends of cold-trap drive the valve body of two valve 16 of electromagnetism to be controlled equipped with gas circuit.
Embodiment 1：
Operate six steps：The first step initializes, and opens the initialization of power supply instrument, at this time valve body, post case, fid detector, heat tracing pipe
Line 3 is begun to warm up, and cold-trap No.1 1 starts to cool down, and cold-trap is waited for for No. two 18；1 enrichment method of second step cold-trap No.1
Sampling, one valve 11 of threeway and two valve 12 of threeway are communicated with cold-trap No.1 1, and sampling pump 10 is opened, and sample is dense in cold-trap No.1 1
Contracting enrichment, while cold-trap starts to be pre-chilled for No. two 18；Third step parsing, enrichment method is completed after 30 minutes, passes through one valve of threeway
11 and two valve 12 of threeway be switched to cold-trap No. two 18 and communicate, cold-trap starts to sample for No. two 18, and cold-trap No.1 1 begins to warm up parsing
Two minutes, sample of the enrichment method in cold-trap No.1 1 is released at high temperature；4th stepping sample, passes through compressed air
One valve 6 of electromagnetism is driven to rotate six logical No.1 valves 2, the sample parsed from cold-trap No.1 1 passes through heat tracing under the drive of carrier gas
Pipeline 3 is detected into chromatograph；5th step blowback activates, and six logical No.1 valves 2 are reduced to initial shape after sampling
State, one valve 7 of two-way and two valve 8 of two-way opening, activate purging cold-trap No.1 1, remaining with carrier gas at high operating temperatures at this time
Sample purges out completely from one valve 7 of two-way, and one valve 7 of two-way and two valve 8 of two-way are closed after the completion of activation；6th step is pre-chilled, cold
Start to cool down after the completion of the activation of trap No.1 1, the enrichment method for next time is prepared；7th step recycles, cold after the completion of six step flows
Trap No.1 1 starts the cycle from flow two to six, and during cold-trap No.1 1 recycles, cold-trap also repeats for No. two 18 above
Flow, to realize the process of continuous concentration sampling.
The features of the present invention：Original instrument uses direct injected, since the target substance concentration in air is too low, instrument
It can not detect, now using the method for enrichment, the target substance in air be carried out enrichment concentration, is detected after parsing,
To reduce the detection limit of target substance, this device can detect the target substance of super low concentration.Cold-trap device is increased, it is main
It to be made of three-level diode cooling piece, radiator fan, U-shaped aluminium block and enrichment pipe.Cold-trap device ensure that bioaccumulation efficiency, increase
Blowing function, ensure that the accuracy of detection, reduces error, realize the detection of low concentration substance, can only originally detect
To ppm ranks, the detection of ppb ranks now can reach.
Claims (2)
1. the concentrating instrument of auto-activation continuous sampling, it is characterised in that：Cold-trap No.1（1）It is logical that upper end inlet line is threadedly coupled six
One valve（2）No.1 valve port, cold-trap No.1（1）Lower end outlet line is threadedly coupled a six logical valves（2）No. four valve ports, six logical one
Valve（2）No. two valve ports be threadedly coupled heat traced pipeline（3）Left end, heat traced pipeline（3）Right end is threadedly coupled color all the way by threeway
Spectrum analysis column（5）Left end, chromatographic column（5）Right end connecting detection device, heat traced pipeline（3）Right end passes through threeway another way spiral shell
Line connection shunting meter（4）Left end, shunting meter（4）Right end connects blow-down pipe, a six logical valves（2）No. three valve port pipeline screw threads connect
Connect six logical two valves（19）No. two valve ports, a six logical valves（2）No. five valve ports pass through threeway all the way pipeline be threadedly coupled threeway two
Valve（12）Upper end, another way pipeline are threadedly coupled two valve of two-way（8）Left end, two valve of threeway（12）Middle-end passes through sample streams gauge
（9）Pipeline is threadedly coupled sampling pump（10）Left end, sampling pump right end connect blow-down pipe, two valve of threeway（12）Lower end passes through threeway
Pipeline is threadedly coupled six logical two valves all the way（19）No. five valve ports, two valve of threeway（12）Four valve of two-way is connected by threeway another way
（15）Left end, four valve of two-way（15）Right end connects two valve of two-way by threeway all the way（8）Right end, four valve of two-way（15）Right end passes through
Threeway another way pipeline is threadedly coupled suspended body flowmeter（17）Upper end, suspended body flowmeter（17）Lower end passes through threeway pipeline spiral shell all the way
Line connects carrier gas flux meter（20）Right end, carrier gas flux meter（20）Left end pipeline is threadedly coupled six and leads to No. two valves（19）Three valves float
Subflow gauge（17）Lower end passes through pressure-regulating valve by threeway another way（21）Pipeline is threadedly coupled nitrogen gas tank（22）, six logical one
Number valve（2）Six valve ports by threeway all the way pipeline be threadedly coupled one valve of two-way（7）Right end, one valve of two-way（7）Left end connection is put
Blank pipe line holds six logical No.1 valves（2）Six valves pass through threeway another way connect one valve of threeway（11）Upper end, one valve of threeway（11）In
Hose is held to connect pneumatic filter（13）Right end, pneumatic filter（13）Left end connects sample introduction pipeline, one valve of threeway（11）Lower end
By threeway, pipeline is threadedly coupled three valve of two-way all the way（14）Right end, three valve of two-way（14）Left end connects blow-down pipe, threeway one
Valve（11）Lower end is threadedly coupled six by threeway another way pipeline and leads to No. two valves（19）Six valve ports, cold-trap two（18）Upper pipes
Line is threadedly coupled six and leads to No. two valves（19）A valve port, cold-trap two（18）Lower end pipeline is threadedly coupled six and leads to No. two valves（19）'s
Four valve ports；Six logical No.1 valves（2）Grafting drives one valve of electromagnetism（6）Left end, drive magnetic valve（6）Valve body be equipped with gas circuit control
System, cold-trap two（18）Grafting drives two valve of electromagnetism（16）Left end drives two valve of electromagnetism（16）Valve body equipped with gas circuit control.
2. the concentrating instrument of auto-activation continuous sampling according to claim 1, it is characterised in that：Six step of technological process：
The first step initializes, and opens the initialization of power supply instrument, at this time valve body, post case, fid detector, heat traced pipeline（3）It begins to warm up,
Cold-trap No.1（1）Start to cool down, cold-trap two（18）It is waited for；Second step cold-trap No.1（1）Enrichment method samples, and three
A logical valve（11）With two valve of threeway（12）With cold-trap No.1（1）It communicates, sampling pump（10）It opens, sample is in cold-trap No.1（1）In
It is concentrated enrichment, while cold-trap two（18）Start to be pre-chilled；Third step parsing, enrichment method is completed after 30 minutes, passes through three
A logical valve（11）With two valve of threeway（12）It is switched to and cold-trap two（18）It communicates, cold-trap two（18）Start to sample, cold-trap one
Number（1）Parsing two minutes is begun to warm up, enrichment method in cold-trap No.1（1）On sample release at high temperature；4th
Stepping sample passes through one valve of compressed air-driven electromagnetism（6）Rotate six logical No.1 valves（2）, from cold-trap No.1（1）The sample parsed
Product pass through heat traced pipeline under the drive of carrier gas（3）It is detected into chromatograph；5th step blowback activates, and sampling terminates
Six logical No.1 valve afterwards（2）It is reduced to original state, at this time one valve of two-way（7）With two valve of two-way（8）It opens, uses at high operating temperatures
Carrier gas activation purging cold-trap No.1（1）, remaining sample from one valve of two-way（7）It purges out completely, two-way after the completion of activation
One valve（7）With two valve of two-way（8）It closes；6th step is pre-chilled, cold-trap No.1（1）Start to cool down after the completion of activation, is the dense of next time
Contracting enrichment is prepared；7th step recycles, cold-trap No.1 after the completion of six step flows（1）Start the cycle from flow two to six, cold
Trap No.1（1）During cycle, cold-trap two（18）Also the above flow is repeated, to realize the mistake of continuous concentration sampling
Journey.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810314026.1A CN108776189A (en) | 2018-04-10 | 2018-04-10 | The concentrating instrument of auto-activation continuous sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810314026.1A CN108776189A (en) | 2018-04-10 | 2018-04-10 | The concentrating instrument of auto-activation continuous sampling |
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| CN108776189A true CN108776189A (en) | 2018-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810314026.1A Pending CN108776189A (en) | 2018-04-10 | 2018-04-10 | The concentrating instrument of auto-activation continuous sampling |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406692A (en) * | 2018-12-28 | 2019-03-01 | 苏州天蓝分析仪器有限公司 | Continuous quadratic enrichment resolver that is a kind of multistage and running in turn |
| CN112730640A (en) * | 2020-12-01 | 2021-04-30 | 中国人民解放军军事科学院军事医学研究院 | Portable gas chromatography analysis device and analysis method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06167482A (en) * | 1991-12-27 | 1994-06-14 | G L Sci Kk | Volatile hydrocarbon continuously automatic analyzer |
| JPH0755780A (en) * | 1993-08-06 | 1995-03-03 | Yanako Bunseki Kogyo Kk | High sensitivity measuring apparatus for ultra-trace ingredient in various gas by gas chromatograph |
| US20170122920A1 (en) * | 2015-10-31 | 2017-05-04 | Prism Analytical Technologies, Inc. | Coupled Analytical Instruments for Dual Mode FTIR/GC-FTIR |
| CN206460004U (en) * | 2016-10-25 | 2017-09-01 | 广州市建筑设备安装工程质量检测站 | A kind of Full-automatic gas analysis system |
| CN107328637A (en) * | 2017-08-14 | 2017-11-07 | 山东海慧环境科技有限公司 | Online air pre-concentration device |
| CN208383817U (en) * | 2018-04-10 | 2019-01-15 | 山东海慧环境科技有限公司 | The concentrating instrument of auto-activation continuous sampling |
-
2018
- 2018-04-10 CN CN201810314026.1A patent/CN108776189A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06167482A (en) * | 1991-12-27 | 1994-06-14 | G L Sci Kk | Volatile hydrocarbon continuously automatic analyzer |
| JPH0755780A (en) * | 1993-08-06 | 1995-03-03 | Yanako Bunseki Kogyo Kk | High sensitivity measuring apparatus for ultra-trace ingredient in various gas by gas chromatograph |
| US20170122920A1 (en) * | 2015-10-31 | 2017-05-04 | Prism Analytical Technologies, Inc. | Coupled Analytical Instruments for Dual Mode FTIR/GC-FTIR |
| CN206460004U (en) * | 2016-10-25 | 2017-09-01 | 广州市建筑设备安装工程质量检测站 | A kind of Full-automatic gas analysis system |
| CN107328637A (en) * | 2017-08-14 | 2017-11-07 | 山东海慧环境科技有限公司 | Online air pre-concentration device |
| CN208383817U (en) * | 2018-04-10 | 2019-01-15 | 山东海慧环境科技有限公司 | The concentrating instrument of auto-activation continuous sampling |
Non-Patent Citations (1)
| Title |
|---|
| 刘兴隆;曾立民;陆思华;于雪娜;: "大气中挥发性有机物在线监测系统", 环境科学学报, no. 12 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406692A (en) * | 2018-12-28 | 2019-03-01 | 苏州天蓝分析仪器有限公司 | Continuous quadratic enrichment resolver that is a kind of multistage and running in turn |
| CN112730640A (en) * | 2020-12-01 | 2021-04-30 | 中国人民解放军军事科学院军事医学研究院 | Portable gas chromatography analysis device and analysis method |
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