CN103349938A - Precise and quantitative-control dust gasification device with airflow-driven tunnel at bottoms of micro nests - Google Patents
Precise and quantitative-control dust gasification device with airflow-driven tunnel at bottoms of micro nests Download PDFInfo
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- CN103349938A CN103349938A CN2013103094059A CN201310309405A CN103349938A CN 103349938 A CN103349938 A CN 103349938A CN 2013103094059 A CN2013103094059 A CN 2013103094059A CN 201310309405 A CN201310309405 A CN 201310309405A CN 103349938 A CN103349938 A CN 103349938A
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Abstract
The invention provides a precise and quantitative-control dust gasification device with an airflow-driven channel at bottoms of micro nests. The precise and quantitative-control dust gasification device comprises a stirring motor and a flow bin with an umbrella-type rotary table at the bottom, wherein the stirring motor drives stirring blades to uniformly stir dust in the flow bin to enable the dust to leak to the micro nests on the umbrella-type rotary table below a leakage hole in the bottom, a scraping powder board scraps the dust to be flat, a scattering tunnel is arranged below a breathable dust prevention gate at the bottoms of the micro nests, penetrated quick airflow is used to enable the dust borne in the micro nests to be sucked from a dust pump opening and a negative pressure dust suction pipe to a dusting powder dissolution cavity to form dust aerosol through a two-way intake and a filter film, the rotating speed of a rotary table motor is adjusted by a computer, ultra fine dust can be precisely and quantitatively controlled to realize the formation of the density of the dust aerosol, and the density of the dust aerosol is input to a detection experimentation cavity for testing and experimentation. The precise and quantitative-control dust gasification device has the benefits that the dust aerosol can be continuously, precisely and quantitatively produced, and is supplied to the scientific research fields of ultra fine dust particle size detection, atmospheric particulate matter study and human respiratory disease viruses and the like for use.
Description
Technical field
Tunnel air stream drives accurate quantification is controlled the dust gasification installation at the bottom of the present invention relates to a kind of little nest.
Background technology
Relating to environment, in the scientific research in the fields such as Atmospheric particulates research and human breathing disease toxicity, often need to provide accurate quantification, the gasification of superfine particle diameter dust is carried out the air experiment and is detected, rotate the dust gasification installation that a certain amount of dust of drive enters a high velocity air with a rotating disc or hairbrush and produce dusty gas but general dust gasification installation is just simple in the prior art, because the dust that the deposition that dust has and adhesion characteristics carry out sometimes is many, sometimes the dust that carries out is few, small accurate quantification particularly, the concrete content of dust is namely inhomogeneous in the dusty gas that occurs in the superfine particle diameter dust gasification situation, can not accurate quantification, and be not easy to cleaning, easily stop up.Can not satisfy the relevant scientific research of the growing accurate quantification of present association area, superfine particle diameter dust gasification and experiment needs, hindered the deep development of correlative study, the scientific experiment condition of satisfying the demand for the dusty gas that obtains the control of accurate quantification, superfine particle diameter dust gasification accurate quantification, fundamentally solve the basic problem in the experimental design, a kind of research and development of accurate quantification control dust gasification installation have just become the inevitable and project in the urgent need to researching and developing.
Summary of the invention
For solving the problem that exists in the above-mentioned technology, the purpose of this invention is to provide tunnel air-flow actuation techniques at the bottom of the little nest of a kind of employing, realize the dust gasification installation of the generation dust aerosol of sustainable accurate quantification
For achieving the above object, tunnel air stream drives accurate quantification was controlled the dust gasification installation at the bottom of technical scheme of the present invention provided a kind of little nest, comprise a mobile storehouse, the useful computer-controlled stirring motor in top in mobile storehouse, the bottom connects a umbrella-type rotary, the stirring piece that stirring motor drives in the storehouse of flowing stirs evenly inner dust, make in the dust that stirs evenly drains to little nest hole on the following umbrella-type rotary from bottom, the storehouse small opening that flows, the upper surface that fine position device on the umbrella-type rotary can be adjusted umbrella-type rotary is close on bottom, the storehouse small opening lower surface that flows, rotary tray motor drives the umbrella-type rotary rotation and will take out of from the powder sample that bottom, the storehouse small opening that flows escapes in little nest hole on the umbrella-type rotary, through powder-wiping plate the powder sample in little nest hole is struck off again, breathe freely the diffusion tunnel arranged under the powder grid in bottom, little nest hole, by the bilateral air agreement mouth that connected by narrow air flue and filter membrane the quick flow that penetrates is drawn into the dust that carries in little nest hole to dust and moltenly forms dust aerosol in the chamber by taking out powder umbrella mouth and negative pressure powder absorbing pipe, adjust the rotating speed of rotary tray motor by computer control, can accurate quantification the powder sample of control superfine form the concentration of dust aerosol, be input to the test experience cabin again and detect and test, the Parameter storages such as the process of experiment and testing result are in computer or print laboratory report.
Its beneficial effect is: the sustainable dusty gas that obtains accurate quantification, the control of superfine particle diameter dust gasification accurate quantification of this device offers the scientific research fields such as the detection of superfine dust size, Atmospheric particulates research and human breathing disease poison and uses, fundamentally solve the basic problem in this type of scientific research and the experimental design, filled up blank.
Description of drawings
Accompanying drawing is the schematic diagram of structure of the present invention.
Among the figure:
1. stirring motor 2. data cable 3. stirring pieces 4. computers
5. 6. negative pressure generators, 7. rotary tray motors 8. in test experience cabin dust molten from the chamber
9. negative pressure powder absorbing pipe 10. little nest holes 11. umbrella-type rotaries, 12. small openings
Storehouse 14. powder-wiping plates 15. are ventilative every powder grid 16. diffusion tunnels 13. flow
17. filter membrane 18. narrow air flues 19. are taken out powder umbrella mouth 20. bilateral air agreement mouths
21. fine position device 22. powder samples 23. collection powder grooves.
The specific embodiment
Reaching by reference to the accompanying drawings embodiment is illustrated the present invention.
As shown in drawings, tunnel air stream drives accurate quantification is controlled the dust gasification installation at the bottom of the invention provides a kind of little nest, comprise a mobile storehouse 13, the stirring motor 1 of controlling with computer 4 is housed at the top in the storehouse 13 of flowing, the bottom in mobile storehouse 13 connects a umbrella-type rotary 11, the dust that stirring pieces 3 in the mobile storehouse 13 of computer control stirring motor 1 rotation drive rotate 13 inside, storehouse of will flowing stirs evenly, make in the dust that stirs evenly drains to little nest hole 10 on the following umbrella-type rotary 11 from the small opening 12 of 13 bottoms, storehouse of flowing, the upper surface of umbrella-type rotary 11 can be close on storehouse 13 bottom small openings, 12 lower surfaces that flow by the fine position device 21 of adjusting on the umbrella-type rotary 11, umbrella-type rotary 11 is one and substantially is 90 degree but not only is confined to the contour structures of the frustum of a cone of this angle, can guarantee that little nest hole 10 presents the position that makes progress and is convenient to collect powder sample 22 when 13 bottom surface portions of mobile storehouse, and when little nest hole 10 turn to present when taking out powder umbrella mouth 19 position the state of standing vertically be conducive to powder sample 22 whole clean being sent in little nest hole 10 take out powder umbrella mouth 19 and negative pressure powder absorbing pipe 9 be drawn into dust molten from the chamber 8 interior formation dusty gas, computer 4 can be controlled at the rotary tray motor 7 of installing on the center of circle of umbrella-type rotary 11 and drive umbrella-type rotary 11 rotations, the powder sample 22 that will escape to from the bottom small opening 12 in the storehouse 13 of flowing in the little nest hole 10 on the umbrella-type rotary 11 is taken out of, powder-wiping plate 14 strikes off the powder sample 22 in little nest hole 10 again, 10 bottoms, little nest hole are ventilative to have diffusion tunnel 16 for 15 times every the powder grid, by the bilateral air agreement mouth 20 that connected by narrow air flue 18 and filter membrane 17 with the quick flow that penetrates with the dust of little nest hole 10 interior carryings by take out powder umbrella mouth 19 and negative pressure powder absorbing pipe 9 be drawn into dust molten from the chamber the 8 interior dust aerosols that form, adjust the rotating speed of rotary tray motor 7 by computer 4 controls, can accurate quantification the powder sample 22 of control superfine form the concentration of dust aerosols, be input to test experience cabin 5 again and detect and test, the Parameter storages such as the process of experiment and testing result are in computer 4 or print laboratory report; Umbrella-type rotary 11 is by the outer surface of the having eliminated static umbrella disc-shape parts that are made into of lubricious material very, have the installing hole that connects rotary tray motor 7 power transmission shafts in the umbrella rotating disk center of circle, it is very smooth that the outer surface of umbrella inclined-plane one circle is made, circle on the umbrella inclined-plane has little nest hole 10 of a plurality of depressions of evenly arranging, it is ventilative every powder grid 15 that each 10 bottom, little nest hole is connected with one deck, ventilative is diffusion tunnels 16 every powder grid 15 bottoms, it connects the narrow air flue 18 of threeway shape, the other two ends of the narrow air flue 18 of threeway shape are communicated to umbrella rotating disk out-of-plane bilateral air agreement mouth 20 about in the of 11 by filter membrane 17, there is the bilateral air agreement mouth 20 of filter membrane 17 can effectively introduce good after filtration extraneous gas and enters diffusion tunnel 16 by the narrow air flue 18 of threeway shape, see through again ventilatively every powder grid 15, carry wherein powder sample 22 and go out little nest hole 10 and enter and take out powder umbrella mouth 19; Rotary tray motor 7 with computer 4 control velocities of rotation is installed on umbrella-type rotary 11 centers of circle, and the turning cylinder on umbrella-type rotary 11 centers of circle and the angled installation in 13 bottoms, mobile storehouse, the hypotenuse of this angle and umbrella-type rotary 11 is identical with the angle of turning cylinder, and the control that adds fine position device 21 can guarantee small opening 12 close contacts of umbrella-type rotary 11 and 13 bottoms, mobile storehouse and not reveal powder sample; Powder-wiping plate 14 to be a usefulness make without electrostatic material with umbrella-type rotary 11 cutting angles in an acute angle install with the thin plates of evacuating unnecessary powder sample 22 grooves, all the time closely contact with the umbrella hypotenuse with thin plate one end of the hypotenuse close contact of umbrella-type rotary 11 flexible scraping being installed, cutting angle can guarantee powder sample 22 in little nest hole on the umbrella rotating disk 11 10 in each little nest hole 10 as many, the unnecessary sample that cuts down can be evacuated along the groove of thin plate and flow in the collection powder groove 23 so that re-using; Taking out powder umbrella mouth 19 is horn-like pipes, be installed in umbrella-type rotary 11 bottoms by fine position device 21 levels, loudspeaker pipe and umbrella-type rotary 11 inclined-plane close contacts, when the little nest hole 10 on umbrella-type rotary 11 inclined-planes turns to bottom the position just in time little nest hole 10 be edge-on state, powder sample 22 in little nest hole 10 is the easiest topples over out, add by the negative pressure of negative pressure generator 6 generations and come to carry out the negative pressure suction through 9 conduction of negative pressure powder absorbing pipe, can be easy to the quantitative powder sample 22 in little nest hole 10 is drawn in the free chamber 8 of dusting, under suction function gas flow through ventilative every powder grid 15 can clarity dispose all and be trapped in little nest hole 10 interior remaining powder samples 22, the sample that assurance is carried all enters in the test experience cabin 5, has greatly improved the dust input precision of experiment.
Embodiment:
During use, at first be ready to experiment powder sample 22, put into 13 li in mobile storehouse, the fine position device 21 of adjusting on the umbrella-type rotary 11 can be close to the upper surface of umbrella-type rotary 11 on storehouse 13 bottom small openings, 12 lower surfaces that flow, and assurance umbrella-type rotary 11 is not revealed powder sample with small opening 12 close contacts of 13 bottoms, mobile storehouse; Connect the power supply of this device and computer 4, concentration according to experiment needs dust aerosol, at 4 li rotating speeds that set stirring motor 1 of computer, the negative pressure of the rotating speed of rotary tray motor 7 and negative pressure generator 6, the experiment beginning, the rotating speed that the stirring motor 1 at mobile 13 tops, storehouse sets according to computer 4 begins to rotate, the stirring piece 3 that drives in the storehouse 13 of flowing rotates, the dust of 13 inside, storehouse of flowing is stirred evenly, in the dust that stirs evenly drains to little nest hole 10 on the following umbrella-type rotary 11 from the small opening 12 of 13 bottoms, storehouse of flowing, the rotary tray motor 7 of installing on the center of circle of umbrella-type rotary 11 drives umbrella-type rotary 11 rotations under the control of computer 4, the powder sample 22 that will escape to from the bottom small opening 12 in the storehouse 13 of flowing in the little nest hole 10 on the umbrella-type rotary 11 is taken out of, powder-wiping plate 14 strikes off the powder sample 22 in little nest hole 10 again, guarantee on the umbrella rotating disk 11 powder sample 22 in little nest hole 10 in each little nest hole 10 as many, the unnecessary sample that cuts down can be evacuated along the groove of thin plate and flow in the collection powder groove 23 so that collection prevents pollution and re-using, can under the negative pressure swabbing action is come in 9 conduction of negative pressure powder absorbing pipe, effectively introduce good after filtration extraneous air with the bilateral air agreement mouth 20 of filter membrane 17 and enter diffusion 16 inside, tunnel by the narrow air flue 18 of threeway shape, see through again ventilatively every powder grid 15 with certain speed and impulsive force, carry little nest hole 10 powder sample 22 wherein and go out little nest hole 10 and enter and take out powder umbrella mouth 19; Because little nest hole 10 presents the state that stands vertically at this moment, add that 10 bottoms, little nest hole are ventilative to have extraneous air by the impact of the narrow air flue 18 of threeway shape every powder grid 15, so the negative pressure that is produced by negative pressure generator 6 that is deposited in that all powder samples 22 in little nest hole 10 can not stay comes to carry out the negative pressure suction through 9 conduction of negative pressure powder absorbing pipe, can be easy to quantitative powder sample 22 is drawn in the free chamber 8 of dusting, add computer accurately control the rotating speed of adjusting rotary tray motor 7 and powder-wiping plate 14 with an acute angle cutting angle can guarantee on the umbrella rotating disk 11 powder sample 22 in little nest hole 10 in each little nest hole 10 as many, can be with the powder sample 22 accurate quantifications control of superfine, the dusty gas that has guaranteed to be input to test experience cabin 5 is accurate quantification, superfine particle diameter dust gasifying gas, can satisfy the growing accurate quantification of present association area, scientific research and experiment that the gasification of superfine particle diameter dust is relevant need, the Parameter storages such as the process of experiment and testing result are in computer 4 or print laboratory report, and experimental result and analysis obtain needed correct conclusion.
Claims (6)
1. tunnel air stream drives accurate quantification control dust gasification installation at the bottom of the little nest, comprise a mobile storehouse (13), the stirring motor (1) of the useful computer in top (4) control in mobile storehouse (13), the bottom connects a umbrella-type rotary (11), the stirring piece (3) that stirring motor (1) drives in the storehouse (13) of flowing stirs evenly inner dust, make in the dust that stirs evenly drains to little nest hole (10) on the following umbrella-type rotary (11) from storehouse (13) the bottom small opening (12) that flows, the upper surface that fine position device (21) on the umbrella-type rotary (11) can be adjusted umbrella-type rotary (11) is close on small opening (12) lower surface of bottom, mobile storehouse (13), rotary tray motor (7) drives umbrella-type rotary (11) rotation and will take out of from the interior powder sample (22) in little nest hole (10) that storehouse (13) the bottom small opening (12) that flows escapes on the umbrella-type rotary (11), passing through powder-wiping plate (14) strikes off the powder sample (22) in little nest hole (10) again, breathe freely diffusion tunnel (16) arranged under powder grid (15) in bottom, little nest hole (10), by bilateral air agreement mouth (20) and the filter membrane (17) that is connected by narrow air flue (18) quick flow that penetrates is drawn into the molten dust aerosol that forms in (8) from the chamber that dusts with the dust that carries in little nest hole (10) by taking out powder umbrella mouth (19) and negative pressure powder absorbing pipe (9), adjust the rotating speed of rotary tray motor (7) by computer (4) control, can accurate quantification the powder sample (22) of control superfine form the concentration of dust aerosol, be input to test experience cabin (5) again and detect and test, the Parameter storages such as the process of experiment and testing result are in computer (4) or print laboratory report.
2. tunnel air stream drives accurate quantification is controlled the dust gasification installation at the bottom of a kind of little nest according to claim 1, it is characterized in that: described umbrella-type rotary (11) is by the outer surface of the having eliminated static umbrella disc-shape parts that are made into of lubricious material very, have the installing hole that connects rotary tray motor (7) power transmission shaft in the umbrella rotating disk center of circle, it is very smooth that the outer surface of umbrella inclined-plane one circle is made, circle on the umbrella inclined-plane has little nest hole (10) of a plurality of depressions of evenly arranging, it is ventilative every powder grid (15) that each bottom, little nest hole (10) is connected with one deck, ventilative is a diffusion tunnel (16) every powder grid (15) bottom, it connects a narrow air flue of threeway shape (18), the other two ends of the narrow air flue of threeway shape (18) are communicated to up and down out-of-plane bilateral air agreement mouth (20) of umbrella rotating disk (11) by filter membrane (17), there is the bilateral air agreement mouth (20) of filter membrane (17) can effectively introduce good after filtration extraneous gas and enters diffusion tunnel (16) by the narrow air flue of threeway shape (18), see through again ventilatively every powder grid (15), carry wherein powder sample (22) and go out little nest hole (10) and enter and take out powder umbrella mouth (19).
3. tunnel air stream drives accurate quantification is controlled the dust gasification installation at the bottom of a kind of little nest according to claim 1, it is characterized in that: described umbrella-type rotary (11) is one and substantially is 90 degree but not only is confined to the contour structures of the frustum of a cone of this angle, can guarantee that little nest hole (10) turns to presents upwards the position and is convenient to collect powder sample (22) when the bottom surface portions of mobile storehouse (13), and when little nest hole (10) turn to present when taking out powder umbrella mouth (19) position the state of standing vertically be conducive to the powder sample (22) little nest hole (10) in whole clean being sent to take out powder umbrella mouth (19) and negative pressure powder absorbing pipe (9) be drawn into dust molten in chamber (8) the formation dusty gas.
4. tunnel air stream drives accurate quantification is controlled the dust gasification installation at the bottom of a kind of little nest according to claim 1, it is characterized in that: the rotary tray motor (7) with computer (4) control velocity of rotation is installed on the center of circle of described umbrella-type rotary (11), and the turning cylinder on umbrella-type rotary (11) center of circle and mobile storehouse (13) angled installation in bottom, the hypotenuse of this angle and umbrella-type rotary (11) is identical with the angle of turning cylinder, and the control that adds fine position device (21) can guarantee small opening (12) close contact of umbrella-type rotary (11) and bottom, mobile storehouse (13) and not reveal powder sample.
5. tunnel air stream drives accurate quantification is controlled the dust gasification installation at the bottom of a kind of little nest according to claim 1, it is characterized in that: described powder-wiping plate (14) to be a usefulness make without electrostatic material with umbrella-type rotary (11) cutting angle in an acute angle install with the thin plate of evacuating unnecessary powder sample (22) groove, all the time closely contact with the umbrella hypotenuse with thin plate one end of the hypotenuse close contact of umbrella-type rotary (11) flexible scraping being installed, cutting angle can guarantee powder sample (22) in the upper little nest hole (10) of umbrella rotating disk (11) in each little nest hole (10) as many, the unnecessary sample that cuts down can be evacuated along the groove of thin plate and flow in the collection powder groove (23) so that re-using.
6. tunnel air stream drives accurate quantification is controlled the dust gasification installation at the bottom of a kind of little nest according to claim 1, it is characterized in that: the described powder umbrella mouth (19) of taking out is a horn-like pipe, be installed in umbrella-type rotary (11) bottom by fine position device (21) level, loudspeaker pipe and umbrella-type rotary (11) inclined-plane close contact, when the little nest hole (10) on umbrella-type rotary (11) inclined-plane turns to bottom the position just in time little nest hole (10) be edge-on state, powder sample (22) in little nest hole (10) is the easiest topples over out, add by the negative pressure of negative pressure generator (6) generation and come to carry out the negative pressure suction through negative pressure powder absorbing pipe (9) conduction, can be easy to the quantitative powder sample (22) in little nest hole (10) is drawn in the free chamber (8) of dusting, under suction function gas flow through ventilative every powder grid (15) can clarity dispose all and be trapped in remaining powder sample (22) in little nest hole (10), the sample that assurance is carried all enters in the test experience cabin (5), has greatly improved the dust input precision of experiment.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103662108A (en) * | 2013-11-20 | 2014-03-26 | 上海宇航系统工程研究所 | Test device and method for simulating dust environment of outer space |
| CN104107672A (en) * | 2014-07-22 | 2014-10-22 | 中国科学院化学研究所 | Mineral aerosol generating system for laboratory |
| CN104122860A (en) * | 2014-07-07 | 2014-10-29 | 清华大学 | System and method for preparing monodisperse particles |
| TWI575557B (en) * | 2015-10-29 | 2017-03-21 | 行政院原子能委員會核能研究所 | Penetration ionization chamber with covering protection electrode structure |
| CN106680167A (en) * | 2017-02-20 | 2017-05-17 | 常熟市顺欣仪器仪表有限公司 | Performance test device for dust detector |
| CN109436810A (en) * | 2018-11-16 | 2019-03-08 | 江苏日盈电子股份有限公司 | The manufacturing method and dust generating device of dust conveyer and dust conveyer |
| CN109436809A (en) * | 2018-11-16 | 2019-03-08 | 江苏日盈电子股份有限公司 | Dust conveyer and dust drying means and dust generating device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103662108A (en) * | 2013-11-20 | 2014-03-26 | 上海宇航系统工程研究所 | Test device and method for simulating dust environment of outer space |
| CN104122860A (en) * | 2014-07-07 | 2014-10-29 | 清华大学 | System and method for preparing monodisperse particles |
| CN104122860B (en) * | 2014-07-07 | 2017-01-11 | 清华大学 | System and method for preparing monodisperse particles |
| CN104107672A (en) * | 2014-07-22 | 2014-10-22 | 中国科学院化学研究所 | Mineral aerosol generating system for laboratory |
| CN104107672B (en) * | 2014-07-22 | 2016-04-13 | 中国科学院化学研究所 | A kind of use for laboratory mineral aerosol generation systems |
| TWI575557B (en) * | 2015-10-29 | 2017-03-21 | 行政院原子能委員會核能研究所 | Penetration ionization chamber with covering protection electrode structure |
| CN106680167A (en) * | 2017-02-20 | 2017-05-17 | 常熟市顺欣仪器仪表有限公司 | Performance test device for dust detector |
| CN106680167B (en) * | 2017-02-20 | 2023-06-16 | 常熟市顺欣仪器仪表有限公司 | Dust detector performance testing device |
| CN109436810A (en) * | 2018-11-16 | 2019-03-08 | 江苏日盈电子股份有限公司 | The manufacturing method and dust generating device of dust conveyer and dust conveyer |
| CN109436809A (en) * | 2018-11-16 | 2019-03-08 | 江苏日盈电子股份有限公司 | Dust conveyer and dust drying means and dust generating device |
| CN109436809B (en) * | 2018-11-16 | 2024-03-19 | 江苏日盈电子股份有限公司 | Dust conveyor, dust drying method and dust generating device |
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