CN104162390B - A kind of dust aerosol generating device - Google Patents
A kind of dust aerosol generating device Download PDFInfo
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- CN104162390B CN104162390B CN201410313192.1A CN201410313192A CN104162390B CN 104162390 B CN104162390 B CN 104162390B CN 201410313192 A CN201410313192 A CN 201410313192A CN 104162390 B CN104162390 B CN 104162390B
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Abstract
The invention discloses a kind of dust aerosol generating device, comprise compressed air generator, separate pressure valve, dehumidifier, filter, proportioning valve, three-way connection, the first magnetic valve, the second magnetic valve, control circuit board, computer, dust box, convection cavity; The whole flow process of the present invention is airtight, can not introduce the impurity in air, also dust can not be introduced air and pollute; Meanwhile, high seal has widened the environment for use of device, reduces the requirement to environment for use; Dust directly enters cavity under airflow function, and the physical area of dust contact has tapered to only has a convection cavity, improves the isolation between different dusts, decreases the pollution sources of experimental subjects, improve the unicity of experiment; This device only needs periodic cleaning convection cavity in addition, changes filter.
Description
Technical field
The present invention relates to a kind of dust aerosol generating device; be applied to the fine particulates such as nano material and dust aerosol, carry out detecting in powder science, industrial production, quality control, demarcate or carry out having a wide range of applications in granule density demarcation, toxicity on inhalation experimental study etc. in the field such as medical science, labour health, environmental protection.
Background technology
Chinese invention patent application 201010101408.X discloses a kind of dust aerosol generating device, the composition of this device includes computer-controlled stirring motor and drives the pectination brush uniform rotation of flowing in storehouse, dust-like material in storehouse is transported in collection powder groove, and is transported on conveyer belt by the small opening of bottom; By the uniform rotation of computer-controlled driven by motor driving wheel, conveyer belt is also remained a constant speed motion.By the control that computer controls conveyer belt rotating speed and then is achieved the concentration that dust aerosol occurs; Computer-controlled negative pressure generator can make negative pressure powder inlet pipe attract the dust on conveyer belt flow to special dust molten in chamber, form dust aerosol after be transported in aerosol test experience cabin by atomizer again, carry out aerosol particle and detect and demarcate or the scientific research such as toxicological experiment.
There is following shortcoming in above-mentioned dust aerosol generating device: 1, the workflow of whole device does not exist seal, is unfavorable for the generation of pure dust aerosol; And high requirement is proposed to working environment, be unfavorable for that the occasion that tested object and generation environment attribute differ greatly uses; 2, the flow process that produces of dust is longer, and the physical area of contact is large, adds device itself and is unfavorable for cleaning and causes device can not produce higher isolation to dust of different nature, be equivalent to the pollution sources adding experimental subjects.
Summary of the invention
For the technical problem of above-mentioned existence, the object of the invention is: propose a kind of dust aerosol generating device, can the generation flow process of specification dust aerosol, flow process will be there is completely airtight, whole generation flow process and the external world are kept apart; There is the physical contact area in flow process in reduction, increases the isolation between different dusts, decreasing pollution source.
Technical solution of the present invention is achieved in that a kind of dust aerosol generating device, comprises compressed air generator, separates pressure valve, dehumidifier, filter, proportioning valve, three-way connection, the first magnetic valve, the second magnetic valve, control circuit board, computer, dust box, convection cavity; Described compressed air generator is connected with the air inlet separating pressure valve by tracheae; The gas outlet of described solution pressure valve is connected with the air inlet of dehumidifier by tracheae; The gas outlet of described dehumidifier is connected with the air inlet of filter by tracheae; The gas outlet of described filter is connected with the air inlet of proportioning valve by tracheae; First gas outlet of described proportioning valve connects mouth by tracheae with first of three-way connection and is connected; Second gas outlet of described proportioning valve communicates with air; Second of described three-way connection is connect mouth and is connected by the air inlet of tracheae with the first magnetic valve; The 3rd of described three-way connection is connect mouth and is connected by the air inlet of tracheae with the second magnetic valve; The gas outlet of described first magnetic valve is connected with dust box air inlet; The gas outlet of described dust box is connected with the upper inlet port of convection cavity by tracheae; The gas outlet of described second magnetic valve is connected with the bottom air inlet of convection cavity by tracheae; Described computer is connected with control circuit board by data wire; Described control circuit board is connected with proportioning valve, the first magnetic valve, the second magnetic valve by control line; Described compressed air generator makes compressed air enter solution pressure valve under pressure, separates pressure valve and reduces air pressure to setting value, then by the moisture in dehumidifier removing air-flow, air-flow is kept dry; Particle in described filter removing dry gas stream, makes air-flow keep pure; Dust concentration signal is passed to control circuit board by described computer; The signal that described control circuit board provides according to computer is reacted, and sends control signal; Described proportioning valve by-pass valve control angle under control signal instruction controls the throughput sending into convection cavity, and all the other air-flows then flow in air; Described first magnetic valve controls the intake of air-flow under control signal instruction; The inner dust of described dust box enters in convection cavity under the effect passing into air-flow; Described second magnetic valve controls the intake of mixing air under the effect of control signal; Described convection cavity produces even convective under the first magnetic valve and the second magnetic valve pass into the effect of air-flow, is evenly spread by dust, falls, and obtains uniform dust aerosol from the dust outlet of convection cavity.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
A kind of dust aerosol generating device of the present invention, comprises compressed air generator, separates pressure valve, dehumidifier, filter, proportioning valve, three-way connection, the first magnetic valve, the second magnetic valve, control circuit board, computer, dust box, convection cavity; The whole flow process of the present invention is airtight, can not introduce the impurity in air, also dust can not be introduced air and pollute; Meanwhile, high seal has widened the environment for use of device, reduces the requirement to environment for use; Dust directly enters cavity under airflow function, and the physical area of dust contact has tapered to only has a convection cavity, improves the isolation between different dusts, decreases the pollution sources of experimental subjects, improve the unicity of experiment; This device only needs periodic cleaning convection cavity in addition, changes filter.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Accompanying drawing 1 is the structural representation of a kind of dust aerosol generating device of the present invention;
Wherein: 1, compressed air generator; 2, pressure valve is separated; 3, dehumidifier; 4, filter; 5, proportioning valve; 6, three-way connection; 7, the first magnetic valve; 8, the second magnetic valve; 9, control circuit board; 10, computer; 11, dust box; 12, convection cavity.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described.
Be a kind of dust aerosol generating device of the present invention as shown in Figure 1, comprise compressed air generator 1, separate pressure valve 2, dehumidifier 3, filter 4, proportioning valve 5, three-way connection 6, first magnetic valve 7, second magnetic valve 8, control circuit board 9, computer 10, dust box 11, convection cavity 12.Described compressed air generator 1 is connected with the air inlet separating pressure valve 2 by tracheae; The gas outlet of described solution pressure valve 2 is connected by the air inlet of tracheae with dehumidifier 3; The gas outlet of described dehumidifier 3 is connected by the air inlet of tracheae with filter 4; The gas outlet of described filter 4 is connected by the air inlet of tracheae with proportioning valve 5; First gas outlet of described proportioning valve 5 connects mouth by tracheae with first of three-way connection 6 and is connected; Second gas outlet of described proportioning valve 5 communicates with air; Second of described three-way connection 6 is connect mouth and is connected by the air inlet of tracheae with the first magnetic valve 7; The 3rd of described three-way connection 6 is connect mouth and is connected by the air inlet of tracheae with the second magnetic valve 8; The gas outlet of described first magnetic valve 7 is connected with dust box 11 air inlet; The gas outlet of described dust box 11 is connected by the upper inlet port of tracheae with convection cavity 12; The gas outlet of described second magnetic valve 8 is connected with the bottom air inlet of convection cavity 12 by tracheae; Described computer 10 is connected with control circuit board 9 by data wire; Described control circuit board 9 is connected with proportioning valve 5, first magnetic valve 7, second magnetic valve 8 by control line.
Described compressed air generator 1 makes compressed air enter under pressure and separates pressure valve 2, separates pressure valve 2 and reduces air pressure to setting value, then remove the moisture in air-flow by dehumidifier 3, air-flow is kept dry; Described filter 4 removes the particle in dry gas stream, makes air-flow keep pure; Dust concentration signal is passed to control circuit board 9 by described computer 10; The signal that described control circuit board 9 provides according to computer 10 is reacted, and sends control signal; Described proportioning valve 5 by-pass valve control angle under control signal instruction controls the throughput sending into convection current, and all the other air-flows then flow in air; Described first magnetic valve 7 controls the intake of air-flow under control signal instruction; On described dust box 11, inner dust enters in convection cavity under the effect passing into air-flow; Described second magnetic valve 8 controls the intake of mixing air under the effect of control signal; Passing ratio valve 5 controls aerocolloidal time of origin, and passing ratio valve 5, first electromagnetism 7, second magnetic valve 8 controls the concentration that aerosol occurs; Dust enters convection cavity 12 under air-flow differential; Described convection cavity 12 produces even convective under the effect of the first magnetic valve 7 and the second magnetic valve 8, is evenly spread by dust, falls, obtain uniform dust aerosol from the dust outlet of convection cavity 12.
The present invention by compressed air generator 1, separate pressure valve 2, dehumidifier 3, filter 4, proportioning valve 5, three-way connection 6, first magnetic valve 7, second magnetic valve 8, control circuit board 9, computer 10, dust box 11, convection cavity 12 with the use of, make the whole flow process of device airtight, the impurity in air can not be introduced, also dust can not be introduced air and pollute; Meanwhile, high seal has widened the environment for use of device, reduces the requirement to environment for use; Dust directly enters cavity under airflow function, and the physical area of dust contact has tapered to only has a convection cavity, improves the isolation between different dusts, decreases the pollution sources of experimental subjects, improve the unicity of experiment; This device only needs periodic cleaning convection cavity 12 in addition, changes filter.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (1)
1. a dust aerosol generating device, is characterized in that: comprise compressed air generator, separate pressure valve, dehumidifier, filter, proportioning valve, three-way connection, the first magnetic valve, the second magnetic valve, control circuit board, computer, dust box, convection cavity; Described compressed air generator is connected with the air inlet separating pressure valve by tracheae; The gas outlet of described solution pressure valve is connected with the air inlet of dehumidifier by tracheae; The gas outlet of described dehumidifier is connected with the air inlet of filter by tracheae; The gas outlet of described filter is connected with the air inlet of proportioning valve by tracheae; First gas outlet of described proportioning valve connects mouth by tracheae with first of three-way connection and is connected; Second gas outlet of described proportioning valve communicates with air; Second of described three-way connection is connect mouth and is connected by the air inlet of tracheae with the first magnetic valve; The 3rd of described three-way connection is connect mouth and is connected by the air inlet of tracheae with the second magnetic valve; The gas outlet of described first magnetic valve is connected with dust box air inlet; The gas outlet of described dust box is connected with the upper inlet port of convection cavity by tracheae; The gas outlet of described second magnetic valve is connected with the bottom air inlet of convection cavity by tracheae; Described computer is connected with control circuit board by data wire; Described control circuit board is connected with proportioning valve, the first magnetic valve, the second magnetic valve by control line; Described compressed air generator makes compressed air enter solution pressure valve under pressure, separates pressure valve and reduces air pressure to setting value, then by the moisture in dehumidifier removing air-flow, air-flow is kept dry; Particle in described filter removing dry gas stream, makes air-flow keep pure; Dust concentration signal is passed to control circuit board by described computer; The signal that described control circuit board provides according to computer is reacted, and sends control signal; Described proportioning valve by-pass valve control angle under control signal instruction controls the throughput sending into convection cavity, and all the other air-flows then flow in air; Described first magnetic valve controls the intake of air-flow under control signal instruction; The inner dust of described dust box enters in convection cavity under the effect passing into air-flow; Described second magnetic valve controls the intake of mixing air under the effect of control signal; Described convection cavity produces even convective under the first magnetic valve and the second magnetic valve pass into the effect of air-flow, is evenly spread by dust, falls, and obtains uniform dust aerosol from the dust outlet of convection cavity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410313192.1A CN104162390B (en) | 2014-07-03 | 2014-07-03 | A kind of dust aerosol generating device |
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| CN201410313192.1A CN104162390B (en) | 2014-07-03 | 2014-07-03 | A kind of dust aerosol generating device |
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| CN104162390A CN104162390A (en) | 2014-11-26 |
| CN104162390B true CN104162390B (en) | 2016-01-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105944632B (en) * | 2016-07-11 | 2017-09-26 | 中国环境科学研究院 | A kind of Powder aerosol generator for preventing lazy flow medicine from luming |
| CN108187514B (en) * | 2018-01-30 | 2021-03-23 | 中国科学院过程工程研究所 | Dust generation system and processing method thereof |
| CN110044784A (en) * | 2019-04-01 | 2019-07-23 | 赵卓慧 | A kind of standard particle mist generating device system for PM2.5 pick up calibration |
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| JPH09122466A (en) * | 1995-10-13 | 1997-05-13 | Boehringer Ingelheim Pharmaceut Inc | Method and apparatus for homogenizing aerosol preparation |
| CN2882774Y (en) * | 2005-09-30 | 2007-03-28 | 清华大学 | Solid particle aerosol producer |
| CN201063032Y (en) * | 2007-07-27 | 2008-05-21 | 中国建筑科学研究院 | Large grain diameter aerosol generator for testing efficiency of aerofilter |
| CN201283287Y (en) * | 2008-09-18 | 2009-08-05 | 中国建筑科学研究院 | Monodisperse aerosol generator |
| CN102773031A (en) * | 2012-07-30 | 2012-11-14 | 天津开发区合普工贸有限公司 | Ultra-micro small-particle size aerosol generating equipment capable of accurately controlling concentration |
| CN202606105U (en) * | 2012-04-20 | 2012-12-19 | 哈尔滨工程大学 | Dual-barrel multi-stage fluidization circular type aerosol generation device |
| DE102012203011A1 (en) * | 2012-02-28 | 2013-08-29 | Topas Gmbh | Device for producing aerosol by cold fumigation, has atomizing unit operated with carrier gas and stands under pressure for solution or suspension, where atomizing unit is connected upstream of cooling unit for cooling carrier gas |
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2014
- 2014-07-03 CN CN201410313192.1A patent/CN104162390B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09122466A (en) * | 1995-10-13 | 1997-05-13 | Boehringer Ingelheim Pharmaceut Inc | Method and apparatus for homogenizing aerosol preparation |
| CN2882774Y (en) * | 2005-09-30 | 2007-03-28 | 清华大学 | Solid particle aerosol producer |
| CN201063032Y (en) * | 2007-07-27 | 2008-05-21 | 中国建筑科学研究院 | Large grain diameter aerosol generator for testing efficiency of aerofilter |
| CN201283287Y (en) * | 2008-09-18 | 2009-08-05 | 中国建筑科学研究院 | Monodisperse aerosol generator |
| DE102012203011A1 (en) * | 2012-02-28 | 2013-08-29 | Topas Gmbh | Device for producing aerosol by cold fumigation, has atomizing unit operated with carrier gas and stands under pressure for solution or suspension, where atomizing unit is connected upstream of cooling unit for cooling carrier gas |
| CN202606105U (en) * | 2012-04-20 | 2012-12-19 | 哈尔滨工程大学 | Dual-barrel multi-stage fluidization circular type aerosol generation device |
| CN102773031A (en) * | 2012-07-30 | 2012-11-14 | 天津开发区合普工贸有限公司 | Ultra-micro small-particle size aerosol generating equipment capable of accurately controlling concentration |
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