CN2760541Y - Aerosol particle separation sampler - Google Patents
Aerosol particle separation sampler Download PDFInfo
- Publication number
- CN2760541Y CN2760541Y CN 200420054360 CN200420054360U CN2760541Y CN 2760541 Y CN2760541 Y CN 2760541Y CN 200420054360 CN200420054360 CN 200420054360 CN 200420054360 U CN200420054360 U CN 200420054360U CN 2760541 Y CN2760541 Y CN 2760541Y
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- utility
- particulate
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- collecting pipes
- semiconductor laser
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Abstract
The utility model relates to an aerosol particle separation sampler. The utility model is characterized in that the right sides of three tapered collecting pipes of the aerosol particle separation sampler are respectively provided with a small semiconductor laser device; the rear parts of the tapered collecting pipes are respectively provided with a photomultiplier which is corresponding to ellipsoidal mirrors on the tapered collecting pipes. A horizontal position on the upper end of the aerosol particle separation sampler is an air inlet communicated with atmosphere. A lower end opening is connected with a miniature sampling pump and is provided with three levels of nozzles. One level of tapered collecting pipes are arranged under every nozzle. Bodies of the collecting pipes are provided with a light inlet which just faces the small semiconductor laser device, and a light outlet is corresponding to the light inlet. The collecting pipes are provided with sampling filter paper inside, and the bottom of the utility model is provided with a movable bottom plate. The utility model can sample aerosol particles acquired by the sampling filter paper, can monitor the average concentration of aerosol particles and can monitor the change of the concentration of various aerosol particles with different sizes at all times. Simultaneously, the utility model is simple and has convenient operation.
Description
Technical field
The utility model relates to a kind of sampling thief, exactly is a kind of particulate discrete sampling device.
Background technology
Gasoloid is to be suspended in airborne particulate matter, can be solid-state, also can be liquid.Particle size range is 10
-3~ 10
2Um. the mankind have life and activity in production that gasoloid is just arranged, and also do not have volcanic explosion, the outer particle cloud of star and various biological spontaneous phenomenon generation " natural " gasoloid even there is activity in production.Aerocolloidal exist favourable harmful.Because the gasoloid that human immoderate activity in production produces has made human living space be subjected to severe contamination.According to the study, the human beings'health situation is directly related with gasoloid, and all kinds of respiratory diseases, angiocardiopathy and asthma, lung failure, lung cancer or the like have caused adult premature dead.Contaminated air is bigger to children's influence and harm.In various productions place, particularly be engaged in the workplace that various poisonous, objectionable impuritiess are produced, the generation of various occupational illness is directly related with aerocolloidal concentration of occupational and granularity.
Existing radial inflow size-grade distribution sampling thief separate earlier gather that PM10 is above, the particulate of PM2.5 ~ PM10 and PM1.0 ~ PM2.5, determine the concentration of particulate after gathering by the weight of a weighing sampling filter paper, carrying out constituent analysis with other method then.But this method can only be measured the mean concentration of the particulate in a period of time, and the mean concentration that the sampling time wants long enough to obtain could be near actual concentration.
The utility model content
The purpose of this utility model is to provide a kind of to people not only can gather particulate with sampling filter paper, and the mean concentration of monitoring particulate can also be monitored the particulate discrete sampling device that various big or small aerosol particle concentration changes constantly.
Particulate discrete sampling device, it is characterized in that: three conical collecting pipe right sides of particulate discrete sampling device are equipped with a small semiconductor laser respectively, and the rear portion is equipped with a photomultiplier respectively, and are relative with ellipsoidal mirror on the conical collecting pipe; The air intake opening of particulate discrete sampling device upper end horizontal level for communicating with atmosphere, lower port connects a miniature sampling pump, in establish three grades of nozzles, the one-level conical collecting pipe is arranged under each nozzle, collect on the body light inlet over against small semiconductor laser is arranged, with its opposite position one light-emitting window is arranged, collection tube is built-in with sampling filter paper, and a removable bottom is arranged at the bottom.
It is that pumping speed is 1-18L/ minute continuous adjustable miniature sampling pump that miniature sampling pump adopts pumping speed.
During work, send the continuous light irradiation by small semiconductor laser, utilize ellipsoidal mirror to collect and scatter light to photomultiplier, signal is through amplifying, and A/D conversion back arrives computing machine and handles, and laser beam penetrates from the opposite side light-emitting window.The variation of various particle concentrations can cause the variation of scattered light intensity, and scattered light is stronger when particle concentration is big, and the signal that obtains is bigger.When particle concentration reduced, scattered light weakened, and the signal that obtains diminishes.Air is entered by behind the first order jet nozzle by thief hatch, the particulate of diameter more than PM10 enters the one-level conical collecting pipe in the air, the continuous light beam of horizontal direction is vertical with the particulate heading, the generation scattering of meeting of particle and light beam, with the light beam direction vertical with particle heading plane on be ellipsoidal mirror, scattered light is focused on the photomultiplier.Particulate flies downwards and arrives on the sampling filter paper; And less than the particulate of PM10 with the air flow secondary nozzle, enter the secondary conical collecting pipe through the particulate of PM2.5 ~ PM10 behind the secondary nozzle; Obtain the concentration of the particulate of PM2.5 ~ PM10 by the scattered light of collecting the scattered light collection window, and the filter paper of sampling collects the particulate of PM2.5 ~ PM10.And less than the particulate of PM2.5 with three grades of nozzles of air flow, behind three grades of nozzles, the particulate of PM1.0 ~ PM2.5 enters three grades of conical collecting pipes; Obtain the concentration of the particulate of PM1.0 ~ PM2.5 by the scattered light of collecting the scattered light collection window, and sampling filter paper 12 collects the particulate of PM1.0 ~ PM2.5.Other particle is taken away by the adjustable miniature sampling pump of lower end pumping speed by bleeding point with airflow.Be the conical collector base plate, sampling filter paper is changed in detachable back, and middle band aperture passes through proper amount of gas, is convenient to particle collection.
Effect of the present utility model:
The utility model not only can be gathered particulate with sampling filter paper, and the mean concentration of monitoring particulate can also be monitored various big or small aerosol particle concentration constantly and be changed.This sampling thief is simple simultaneously, and is easy to operate.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the conical collecting pipe synoptic diagram.
Embodiment
Embodiment 1:
Referring to Fig. 1,2, three conical collecting pipe 4 right sides of the utility model particulate discrete sampling device 1 are equipped with 532nm small semiconductor laser 2 respectively, and the rear portion is equipped with a photomultiplier 3 respectively, and are relative with ellipsoidal mirror 5 on the conical collecting pipe.The air intake opening 6 of sampling thief 1 upper end horizontal level for communicating with atmosphere, it is 1-18L/ minute continuous adjustable miniature sampling pump 7 that lower port connects a pumping speed, in establish three grades of nozzles 8, the one-level conical collecting pipe is arranged under each nozzle, collect on the body light inlet 9 over against small semiconductor laser is arranged, with its opposite position one light-emitting window 10 is arranged, collection tube is built-in with sampling filter paper 11, and a removable bottom 12 is arranged at the bottom.
Claims (2)
1, particulate discrete sampling device is characterized in that: three conical collecting pipe right sides of particulate discrete sampling device are equipped with a small semiconductor laser respectively, and the rear portion is equipped with a photomultiplier respectively, and are relative with ellipsoidal mirror on the conical collecting pipe; The air intake opening of particulate discrete sampling device upper end horizontal level for communicating with atmosphere, lower port connects a miniature sampling pump, in establish three grades of nozzles, the one-level conical collecting pipe is arranged under each nozzle, collect on the body light inlet over against small semiconductor laser is arranged, with its opposite position one light-emitting window is arranged, collection tube is built-in with sampling filter paper, and a removable bottom is arranged at the bottom.
2, particulate discrete sampling device according to claim 2 is characterized in that: it is that pumping speed is 1-18L/ minute continuous adjustable miniature sampling pump that described miniature sampling pump adopts pumping speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054360 CN2760541Y (en) | 2004-12-08 | 2004-12-08 | Aerosol particle separation sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054360 CN2760541Y (en) | 2004-12-08 | 2004-12-08 | Aerosol particle separation sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2760541Y true CN2760541Y (en) | 2006-02-22 |
Family
ID=36082744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420054360 Expired - Fee Related CN2760541Y (en) | 2004-12-08 | 2004-12-08 | Aerosol particle separation sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2760541Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324490B (en) * | 2008-07-25 | 2010-08-04 | 北京汇***生物科技发展有限公司 | High flow rate aerosol sampling apparatus |
| CN101231220B (en) * | 2007-11-20 | 2010-09-15 | 中国科学院上海应用物理研究所 | Passive atmospheric aerosol individual sampler |
| CN102914491A (en) * | 2012-10-19 | 2013-02-06 | 东莞市汇海环保科技有限公司 | Collector with real-time monitoring function |
| TWI467149B (en) * | 2011-08-10 | 2015-01-01 | Univ Nat Chiao Tung | Multi-filter pm 10-pm 2.5 sampler |
| CN105203352A (en) * | 2014-06-18 | 2015-12-30 | 中国科学院大连化学物理研究所 | Non-contact suction-type sampling device |
| US9709541B2 (en) | 2011-10-26 | 2017-07-18 | Research Triangle Institute | Gas processing device with noise dampening |
| CN109632398A (en) * | 2018-11-23 | 2019-04-16 | 北京大学深圳研究生院 | Big flow can the multistage PM2.5 isokinetic sampling's head assembled |
| CN109870329A (en) * | 2019-03-25 | 2019-06-11 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | A kind of artificial radioactive aerosol and the efficient partial size separating and sampling unit of naturally radioactive aerosol |
-
2004
- 2004-12-08 CN CN 200420054360 patent/CN2760541Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101231220B (en) * | 2007-11-20 | 2010-09-15 | 中国科学院上海应用物理研究所 | Passive atmospheric aerosol individual sampler |
| CN101324490B (en) * | 2008-07-25 | 2010-08-04 | 北京汇***生物科技发展有限公司 | High flow rate aerosol sampling apparatus |
| TWI467149B (en) * | 2011-08-10 | 2015-01-01 | Univ Nat Chiao Tung | Multi-filter pm 10-pm 2.5 sampler |
| US9709541B2 (en) | 2011-10-26 | 2017-07-18 | Research Triangle Institute | Gas processing device with noise dampening |
| CN102914491A (en) * | 2012-10-19 | 2013-02-06 | 东莞市汇海环保科技有限公司 | Collector with real-time monitoring function |
| CN105203352A (en) * | 2014-06-18 | 2015-12-30 | 中国科学院大连化学物理研究所 | Non-contact suction-type sampling device |
| CN109632398A (en) * | 2018-11-23 | 2019-04-16 | 北京大学深圳研究生院 | Big flow can the multistage PM2.5 isokinetic sampling's head assembled |
| CN109870329A (en) * | 2019-03-25 | 2019-06-11 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | A kind of artificial radioactive aerosol and the efficient partial size separating and sampling unit of naturally radioactive aerosol |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |