CN208383817U - The concentrating instrument of auto-activation continuous sampling - Google Patents

Abstract

The concentrating instrument of the utility model offer auto-activation continuous sampling, be to be realized by following technological means: cold-trap No.1 (1) upper end inlet line is threadedly coupled the No.1 valve port of six logical a valve (2), cold-trap No.1 (1) lower end outlet line is threadedly coupled No. four valve ports of six logical a valve (2), No. two valve ports of six logical a valve (2) are threadedly coupled heat traced pipeline (3) left end, heat traced pipeline (3) right end is threadedly coupled chromatographic column (5) left end by threeway all the way, the right end connecting detection device of chromatographic column (5), heat traced pipeline (3) right end is threadedly coupled by threeway another way shunts meter (4) left end.The utility model is detected, to reduce the detection limit of target substance, this device can detecte the target substance of super low concentration after parsing the utility model has the advantages that the target substance in air is carried out enrichment concentration；Enrichment concentration has reduction detection error and super low concentration detection function, advantage small in size, easy to control.

Description

The concentrating instrument of auto-activation continuous sampling

Technical field

The utility model relates to the technical field of atmospheric monitoring and fixed source emission detection, especially auto-activation is continuously adopted The concentrating instrument of sample.

Background technique

Existing equipment is unable to on-line continuous use, and single injected sampling needs to readjust again, and cannot continuously be enriched with, greatly The technology of gas monitoring and 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 in size, easy to control.

Summary of the invention

The purpose of this utility model is to provide continuous using the auto-activation for increasing cold-trap device and blowing function is enriched with The concentrating instrument of sampling.The utility model is realized by following technological means: cold-trap No.1 upper end inlet line is threadedly coupled The No.1 valve port of six logical No.1 valves, cold-trap No.1 lower end outlet line are threadedly coupled No. four valve ports of six logical No.1 valves, and six lead to one No. two valve ports of number valve are threadedly coupled heat traced pipeline left end, and heat traced pipeline right end is threadedly coupled chromatographic column by threeway all the way Left end, the right end connecting detection device of chromatographic column, heat traced pipeline right end is threadedly coupled by threeway another way shunts meter left end, It shunting meter right end and connects blow-down pipe, No. three valve port pipelines of six logical No.1 valves are threadedly coupled No. two valve ports of six logical No. two valves, By threeway, pipeline is threadedly coupled two valve upper end of threeway to No. five valve ports of six logical No.1 valves all the way, and another way pipeline is threadedly coupled two Logical two valve left ends, two valve middle-end of threeway are threadedly coupled sampling pump left end by sample streams meter pipeline, and the connection of sampling pump right end is put Blank pipe line, by threeway, pipeline is threadedly coupled six No. five valve ports for leading to No. two valves to two valve lower end of threeway all the way, and two valve of threeway passes through Threeway another way connects four valve left end of two-way, and four valve right end of two-way connects two valve right end of two-way, four valve of two-way by threeway all the way Right end is threadedly coupled suspended body flowmeter upper end by threeway another way pipeline, and suspended body flowmeter lower end passes through threeway pipeline spiral shell all the way Line connects carrier gas flux meter right end, and carrier gas flux meter left end pipeline is threadedly coupled six and leads to No. two three valves of valve, suspended body flowmeter lower end Nitrogen gas tank is threadedly coupled by pressure-regulating valve pipeline by threeway another way, six valve ports of six logical No.1 valves pass through threeway all the way Pipeline is threadedly coupled one valve right end of two-way, and one valve left end of two-way connects blow-down pipe, and six valves of six logical No.1 valves of end pass through threeway Another way connects one valve upper end of threeway, and one valve middle-end hose of threeway connects pneumatic filter right end, the connection of pneumatic filter left end Sample introduction pipeline, by threeway, pipeline is threadedly coupled three valve right end of two-way to one valve lower end of threeway all the way, and the connection of three valve left end of two-way is put Blank pipe line, one valve lower end of threeway are threadedly coupled six valve ports of six logical No. two valves, No. two upper ends of cold-trap by threeway another way pipeline Pipeline is threadedly coupled a valve port of six logical No. two valves, and No. two lower end pipelines of cold-trap are threadedly coupled four valve ports of six logical No. two valves；Six Logical No.1 valve grafting drives one valve left end of electromagnetism, and the valve body of drive magnetic valve is controlled equipped with gas circuit, No. two grafting drivings of cold-trap Two valve left end of electromagnetism drives the valve body of two valve of electromagnetism to control equipped with gas circuit.

Six step of process flow: the initialization of power supply instrument is opened in first step initialization, at this time valve body, post case, FID detection Device, heat traced pipeline are begun to warm up, and cold-trap No.1 starts to cool down, and cold-trap two are waited for；The concentration of second step cold-trap No.1 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 start to be pre-chilled；Third step parsing, three enrichment method completions ten minutes later, passes through one valve of threeway and threeway Two Vavle switchings are communicated to cold-trap two, and cold-trap two start 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 activation, 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；The pre-cooling of 6th step 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 circulation from process two to six after the completion of six step processes, cold During trap No.1 recycles, cold-trap two also repeat the above process, to realize the process of continuous concentration sampling.

The utility model is detected after parsing the utility model has the advantages that the target substance in air is carried out enrichment concentration, thus The detection limit of target substance is reduced, the present invention can detecte the target substance of super low concentration；Enrichment concentration, which has to reduce, to be detected Error and super low concentration detection function, advantage small in size, easy to control.

Detailed description of the invention

Fig. 1 is the flow diagram of the utility model.

Specific embodiment

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 shunts meter 4, chromatographic column 5, driving one valve 6 of electromagnetism, one valve 7 of two-way, two valve 8 of two-way, sample streams meter 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 two valve 16 of electromagnetism, Suspended body flowmeter 17, cold-trap No. two 18, six logical No. two valves 19, carrier gas flux meter 20, pressure-regulating valve 21 and nitrogen gas tank 22 are constituted. 1 upper end inlet line of cold-trap No.1 is threadedly coupled the No.1 valve port of six logical No.1 valves 2,1 lower end outlet line screw thread of cold-trap No.1 No. four valve ports of six logical No.1 valves 2 are connected, No. two valve ports of six logical No.1 valves 2 are threadedly coupled 3 left end of heat traced pipeline, heat traced pipeline 3 right ends are threadedly coupled 5 left end of chromatographic column, the right end connecting detection device of chromatographic column 5, heat traced pipeline by threeway all the way 3 right ends are threadedly coupled by threeway another way shunts 4 left ends of meter, shunts 4 right ends of meter and connects blow-down pipe, six logical No.1 valves 2 No. three valve port pipelines are threadedly coupled No. two valve ports of six logical No. two valves 19, and No. five valve ports of six logical No.1 valves 2 pass through threeway all the way Pipeline is threadedly coupled two valve of threeway, 12 upper end, and another way pipeline is threadedly coupled two valve of two-way, 8 left end, and two valve of threeway, 12 middle-end passes through 9 pipeline of sample streams meter 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 passes through Pipeline is threadedly coupled six No. five valve ports for leading to No. two valves 19 all the way for threeway, and two valve 12 of threeway connects two-way four by threeway another way 15 left end of valve, four valve of two-way, 15 right end connect two valve of two-way, 8 right end by threeway all the way, and four valve of two-way, 15 right end is another by threeway Pipeline is threadedly coupled 17 upper end of suspended body flowmeter all the way, and by threeway, pipeline is threadedly coupled carrier gas to 17 lower end of suspended body flowmeter all the way 20 right end of flowmeter, 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 logical It crosses threeway another way and nitrogen gas tank 22 is threadedly coupled by 21 pipeline of pressure-regulating valve, six valve ports of six logical No.1 valves 2 pass through threeway Pipeline is threadedly coupled one valve of two-way, 7 right end all the way, and one valve of two-way, 7 left end connects blow-down pipe, and six valves of six logical No.1 valves 2 of end are logical Threeway another way connection one valve of threeway, 11 upper end is crossed, one valve of threeway, 11 middle-end hose connects 13 right end of pneumatic filter, gas mistake 13 left end of filter connects sample introduction pipeline, and by threeway, pipeline is threadedly coupled three valve of two-way, 14 right end all the way for one valve of threeway, 11 lower end, Three valve of two-way, 14 left end connects blow-down pipe, and one valve of threeway, 11 lower end is threadedly coupled six by threeway another way pipeline and leads to No. two valves 19 six valve ports, No. two 18 upper end pipelines of cold-trap are threadedly coupled a valve port of six logical No. two valves 19, No. two 18 lower end pipelines of cold-trap It is threadedly coupled four valve ports of six logical No. two valves 19；Six logical 2 grafting of No.1 valve drive one valve of electromagnetism, 6 left end, the valve of drive magnetic valve 6 Body is controlled equipped with gas circuit, and No. two 18 grafting of cold-trap drive two valve of electromagnetism, 16 left end, and the valve body of driving two valve 16 of electromagnetism is equipped with Gas circuit control.

Operating process

Operate six steps: first step initialization opens the initialization of power supply instrument, at this time valve body, post case, fid detector, companion Hot pipeline 3 is begun to warm up, and cold-trap No.1 1 starts to cool down, and cold-trap No. two 18 are waited for；Second step cold-trap No.1 1 is concentrated Concentration 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 in cold-trap No.1 1 It is concentrated enrichment, while cold-trap No. two 18 start to be pre-chilled；Third step parsing, three enrichment method completions ten minutes later, passes through threeway One valve 11 and two valve 12 of threeway are switched to and communicate with cold-trap No. two 18, and cold-trap No. two 18 start to sample, and cold-trap No.1 1 is begun to warm up Parsing two minutes, at high temperature releases sample of the enrichment method in cold-trap No.1 1；4th stepping sample passes through compression Air drives one valve 6 of electromagnetism to rotate six logical No.1 valves 2, and the sample parsed from cold-trap No.1 1 passes through under the drive of carrier gas Heat traced pipeline 3 is detected into chromatograph；5th step blowback activation, six logical No.1 valves 2 are reduced to just after sampling Beginning state, one valve 7 of two-way and two valve 8 of two-way are opened at this time, purging cold-trap No.1 1 are activated with carrier gas at high operating temperatures, residual The sample stayed 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- It is cold, start to cool down after the completion of the activation of cold-trap No.1 1, the enrichment method for next time is prepared；7th step circulation, six step processes are completed Cold-trap No.1 1 starts the circulation from process two to six afterwards, and during cold-trap No.1 1 recycles, cold-trap No. two 18 are also repeated The above process, to realize the process of continuous concentration sampling.

Claims (1)

1. the concentrating instrument of auto-activation continuous sampling, it is characterised in that: it is logical that cold-trap No.1 (1) upper end inlet line is threadedly coupled six The No.1 valve port of No.1 valve (2), No. four valve ports of cold-trap No.1 (1) lower end outlet line six logical No.1 valves (2) of threaded connection, six No. two valve ports of logical No.1 valve (2) are threadedly coupled heat traced pipeline (3) left end, and heat traced pipeline (3) right end passes through threeway screw thread all the way Chromatographic column (5) left end is connected, the right end connecting detection device of chromatographic column (5), it is another that heat traced pipeline (3) right end passes through threeway It is threadedly coupled all the way and shunts meter (4) left end, shunt meter (4) right end and connect blow-down pipe, No. three valve port pipes of six logical No.1 valves (2) Line is threadedly coupled No. two valve ports of six logical No. two valves (19), and No. five valve ports of six logical No.1 valves (2) pass through threeway pipeline spiral shell all the way Line connects two valve of threeway (12) upper end, and another way pipeline is threadedly coupled two valve of two-way (8) left end, and two valve of threeway (12) middle-end passes through Sample streams meter (9) pipeline is threadedly coupled sampling pump (10) left end, and sampling pump right end connects blow-down pipe, under two valve of threeway (12) By threeway, pipeline is threadedly coupled six No. five valve ports for leading to No. two valves (19) all the way at end, and two valve of threeway (12) passes through threeway another way Four valve of two-way (15) left end is connected, two-way four valves (15) right end connects two valve of two-way (8) right end, four valve of two-way by threeway all the way (15) right end is threadedly coupled suspended body flowmeter (17) upper end by threeway another way pipeline, and suspended body flowmeter (17) lower end passes through three Logical pipeline all the way is threadedly coupled carrier gas flux meter (20) right end, and carrier gas flux meter (20) left end pipeline is threadedly coupled six and leads to No. two valves (19) three valves, suspended body flowmeter (17) lower end are threadedly coupled nitrogen gas tank by pressure-regulating valve (21) pipeline by threeway another way (22), by threeway, pipeline is threadedly coupled one valve of two-way (7) right end, one valve of two-way (7) to six valve ports of six logical No.1 valves (2) all the way Left end connects blow-down pipe, and six valves of six logical No.1 valves (2) of end connect one valve of threeway (11) upper end, threeway by threeway another way One valve (11) middle-end hose connects pneumatic filter (13) right end, and pneumatic filter (13) left end connects sample introduction pipeline, threeway one By threeway, pipeline is threadedly coupled three valve of two-way (14) right end all the way for valve (11) lower end, and three valve of two-way (14) left end connects blow-down pipe Line, one valve of threeway (11) lower end are threadedly coupled six valve ports of six logical No. two valves (19) by threeway another way pipeline, and cold-trap two (18) upper end pipeline is threadedly coupled a valve port of six logical No. two valves (19), and cold-trap two (18) lower end pipelines are threadedly coupled six logical two Four valve ports of number valve (19)；Six logical No.1 valve (2) grafting drive one valve of electromagnetism (6) left end, on the valve body for driving one valve of electromagnetism (6) It is controlled equipped with gas circuit, No. two (18) grafting of cold-trap drive two valve of electromagnetism (16) left end, drive and set on the valve body of two valve of electromagnetism (16) There is gas circuit control.