CN105784933B - Aerosol humidity compensating sampling device - Google Patents
Aerosol humidity compensating sampling device Download PDFInfo
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- CN105784933B CN105784933B CN201610126059.4A CN201610126059A CN105784933B CN 105784933 B CN105784933 B CN 105784933B CN 201610126059 A CN201610126059 A CN 201610126059A CN 105784933 B CN105784933 B CN 105784933B
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Abstract
The present invention relates to atmospheric environment test device, specially aerosol humidity compensating sampling device, the air inlet of air filter is connected with air compressor, and gas outlet is connected with threeway, and threeway is connected with first flow controller and second flow controller respectively again；Second flow controller is connected with the air intlet of atomizer；First flow controller is connected with the air inlet of air mixer second；The atomization gas outlet of atomizer is connected with the air inlet of air mixer first；The mixing gas outlet of air mixer is connected with the outer tube air inlet of bimetallic tube.The aerosol humidity compensating sampling device that the present invention is provided, for studying aerosol moisture absorption growth curve observational study or cloud condensation nucl observation, equipment cost is low, be easy to maintenance, high degree of automation, can be used under the different geographical and natural conditions such as city, suburb, high mountain, be particularly suited for the observational study that aerosol physicochemical properties are carried out in the temperature difference big observation station in indoor and outdoor.
Description
Technical field
The present invention relates to atmospheric environment test device, specially aerosol humidity compensating sampling device.
Background technology
In the research of haze Weatherly Reasons, the measurement to Aerosol scattering coefficient under real atmosphere environment is particularly significant.Generally
In the case of, by the synchro measure to Aerosol scattering coefficient under the conditions of dry and wet, aerosol moisture absorption enhancing curve can be obtained (wet
Aerosol scattering coefficient and Dry aerosol scattering coefficient ratio) and aerosol water content, it is further to study secondary particulate grain
The researchs such as son generation, the change of aerosol acidity and haze weather Forming Mechanism provide important foundation data.Both at home and abroad to aerosol
Observational study in terms of hygroscopicity is relatively more, and considerably less to aerosol water content observational study.Nonetheless, due to being subject to
The influence of indoor temperature residing for instrument and equipment, the corresponding relative humidity of aqueous aerosol scattering coefficient and actual environment of actual measurement
In relative humidity difference it is obvious.For obtaining relatively low envionmental humidity (being less than 80%), aerosol moisture absorption growth curve is still for this
It is acceptable, but for relative humidity higher under (be more than 80%) sucting wet curve uncertainty it is larger, for estimation aerosol
Water content is uncertain can be bigger.Therefore, obtain actual environment under the corresponding Aerosol scattering coefficient of relative humidity have it is important
Researching value.
Because to aerosol hygroscopicity, especially aqueous quantifier elimination is less at present, under actual environment relative humidities
Aerosol scattering coefficient measurement request it is not high, therefore correlation meter has no report.In view of current China city is especially
It is that high humidity city haze weather is increasingly severe, grasps a certain regional aerosol moisture absorption rising characteristic for holding haze weather and form machine
System is particularly significant.In addition, the external research for comparing forward position shows that aerosol water content has obvious for secondary aerosol species generation
Facilitation, so as to haze weather can be aggravated further.Therefore, design one kind can automatically be compensated and drawn by measuring instrument temperature change
The device of the aerosol sample humidity change for rising, aerosol moisture absorption rising characteristic and aqueous with aerosol is carried out for Humid Area high
Measure related Physiochemical mechanism research very necessary.
The content of the invention
Regarding to the issue above, it is an object of the invention to provide a kind of aerosol sampling apparatus, aerosol can automatically be compensated
Scope causes the humidity of temperature change to change.
To achieve the above object, the present invention takes following technical scheme：
Aerosol humidity compensating sampling device, including air filter, atomizer, air mixer, bimetallic tube are gentle
Colloidal sol sampling pipe；
Air filter includes three cartridge filters being sequentially connected in series, respectively the first cartridge filter, the second cartridge filter and the
Three cartridge filters, each cartridge filter top is import, and bottom is outlet, and there is stainless steel cloth and dust-proof at two ends respectively in cartridge filter
Cotton, stainless steel cloth and dust-proof cotton are wrapped in filter material, and the filter material of the first cartridge filter is silica gel, and the filter material of the second cartridge filter is molecule
Sieve, the filter material of the 3rd cartridge filter is activated carbon；The import of the first cartridge filter is air filter air inlet, the 3rd cartridge filter
Export the gas outlet for air filter.
Atomizer includes cylindrical case, there is vertical partition plate in cylindrical case, spray chamber and storage will be divided into cylindrical case
There is gap on hydroecium, vertical partition plate base with the bottom of cylindrical case；There is cone type pipeline in spray chamber, cone type pipeline
Upward, the bottom of cone type pipeline is the air intlet of atomizer to osculum；Cone type duct wrap has conical sleeve, the frustum of a cone
Space is left between type pipeline and conical sleeve；Conical sleeve top is higher than cone type pipeline osculum, and conical sleeve bottom is also equipped with
Piece is clashed into atomization, and atomization clashes into piece top for atomization gas are exported；Water supplement port is arranged at reservoir chamber top.
Air mixer includes air blender, and multiple disturbance plates staggeredly are provided with air blender；Air mixes
Bottom portion is provided with the first air inlet and the second air inlet, and top sets mixing gas outlet, and mixing has humidity sensor at gas outlet
Device.
Bimetallic tube includes perfluoro sulfonic acid membrane inner tube and outer tube, and outer tube coaxial line is enclosed within outside perfluoro sulfonic acid membrane inner tube, institute
There is outer tube gas outlet the outer tube one end stated, and the other end has outer tube air inlet；It is provided with perfluoro sulfonic acid membrane inner tube import
Second humidity sensor and exit set the 3rd humidity sensor.
Sampling of aerosol bottom of the tube is connected with the exit of the perfluoro sulfonic acid membrane inner tube of bimetallic tube；Sampling of aerosol pipe top
It is rain-proof bend, the conical platform of rain-proof bend end connection, conical entablature sets steel wire protection network.
Control system includes signal processor, has flow controller port, humidity sensor port on signal processor, leads to
Communication interface.
The air inlet of air filter is connected with air compressor, and gas outlet is connected with threeway, and threeway is again respectively with
One flow controller and second flow controller are connected；Second flow controller is connected with the air intlet of atomizer；It is first-class
Amount controller is connected with the air inlet of air mixer second；Atomization gas outlet and the air inlet of air mixer first of atomizer connect
Connect；The mixing gas outlet of air mixer is connected with the outer tube air inlet of bimetallic tube.
First flow controller and second flow controller are connected with control system flow controller port respectively；Humidity is passed
Sensor, the second humidity sensor and the 3rd humidity sensor are connected with humidity sensor port respectively.
The signal of control system real-time reception humidity sensor and flow controller simultaneously carries out signal judgement and signal feedback,
And the working condition of flow controller is adjusted in real time according to judged result.Specifically, being entered according to perfluoro sulfonic acid membrane inner tube
The psychrometric difference at mouthful and exit, mixes wet zero air purging perfluoro sulfonic acid membrane inner tube so that actual using the dry and wet of bimetallic tube
Aerosol sample relative humidity humidity in measuring instrument device procedures are got in does not change in environment, offsets due to room
The aerosol sample humidity change that interior outdoor temperature change causes, makes humidity and exit humidity at perfluoro sulfonic acid membrane inner tube import
Unanimously.When perfluoro sulfonic acid membrane inner tube outlet humidity is less than actual environment import humidity, control system sends to two flow controllers
Signal opens valve, produces wet zero air and former dry zero air to be sufficiently mixed in air mixer by atomizer so that air
The built-in humidity of blender is basically identical with perfluoro sulfonic acid membrane inner tube import humidity, and mixing zero air by dry and wet purges outer tube,
Finally so that perfluoro sulfonic acid membrane inner tube import and export humidity is consistent.When perfluoro sulfonic acid membrane inner tube outlet humidity is more than import humidity, control
System processed sends shutdown signal to connection atomizer second flow controller, while opening first flow controller so that air
Full of dry zero air in blender, by adjusting flow so that perfluoro sulfonic acid membrane inner tube import and export humidity is consistent.Complete equipment is certainly
Dynamic operation, therefore, it is possible to effectively ensure that gas is molten under pipe end observation instrument energy direct measurement environmental damp condition in perfluoro sulfonic acid membrane
Glue physicochemical properties, high degree of automation is workable.
The aerosol humidity compensating sampling device that the present invention is provided, for studying aerosol moisture absorption growth curve observational study
Or cloud condensation nucl observation, equipment cost is low, be easy to maintenance, and high degree of automation can be in city, suburb, high mountain etc. differently
Used under reason and natural conditions, be particularly suited for the sight that aerosol physicochemical properties are carried out in the temperature difference big observation station in indoor and outdoor
Survey research.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Specific embodiment
Specific embodiment of the invention is described with reference to the drawings.
As shown in figure 1, aerosol humidity compensating sampling device, including air filter 2, atomizer 3, air mixer
4th, bimetallic tube 5 and aerosol sampling pipe 6.
Air filter 2 includes three cartridge filters being sequentially connected in series, respectively the first cartridge filter 21, the second cartridge filter 22
With the 3rd cartridge filter 23, each cartridge filter top is import, and bottom is outlet, and there is stainless steel cloth 24 at two ends respectively in cartridge filter
With dust-proof cotton 25, stainless steel cloth 24 and dust-proof cotton 25 are wrapped in filter material, and the filter material of the first cartridge filter 21 is silica gel, the second filtering
The filter material of cylinder 22 is molecular sieve, and the filter material of the 3rd cartridge filter 23 is activated carbon；The import of the first cartridge filter 21 is filled for air filtration
2 air inlets are put, the outlet of the 3rd cartridge filter 23 is the gas outlet of air filter 2.
Atomizer 3 include cylindrical case, have vertical partition plate 31 in cylindrical case, will be divided into cylindrical case spray chamber and
There is gap on reservoir chamber, the base of vertical partition plate 31 with the bottom of cylindrical case；There are cone type pipeline 33, cone type in spray chamber
Upward, the bottom of cone type pipeline 33 is the air intlet 36 of atomizer 3 to the osculum of pipeline 33；The overcoat of cone type pipeline 33
There is conical sleeve 32, space is left between cone type pipeline 33 and conical sleeve 32；The top of conical sleeve 32 is higher than cone type pipeline
33 osculums, the bottom of conical sleeve 32 is also equipped with atomization and clashes into piece 34, and it is atomization gas outlet 35 that the top of piece 34 is clashed into atomization；Reservoir chamber
Water supplement port 37 is arranged at top.
Air mixer 4 includes air blender, and multiple disturbance plates 44 staggeredly are provided with air blender；Air is mixed
Mould assembling bottom is provided with the first air inlet 41 and the second air inlet 42, and top sets mixing gas outlet 43, at mixing gas outlet 43
There is humidity sensor 71.
Bimetallic tube 5 includes perfluoro sulfonic acid membrane inner tube 51 and outer tube 52, and the coaxial line of outer tube 52 is enclosed within perfluoro sulfonic acid membrane
Outside pipe 51, there is outer tube gas outlet 522 described one end of outer tube 52, and the other end has outer tube air inlet 521；Perfluoro sulfonic acid membrane
The second humidity sensor 72 is provided with the import of inner tube 51 and exit sets the 3rd humidity sensor 73.
The bottom of sampling of aerosol pipe 6 is connected with the exit of the perfluoro sulfonic acid membrane inner tube 51 of bimetallic tube 5；Sampling of aerosol pipe
6 tops are rain-proof bend, the conical platform 61 of rain-proof bend end connection, 61 mouthfuls of setting steel wire protection networks of conical platform.
Control system 9 includes signal processor 91, there is flow controller port, humidity sensor end on signal processor 91
Mouth, communication interface.
The air inlet of air filter 2 is connected with air compressor 1, and gas outlet is connected with threeway 80, and threeway 80 divides again
It is not connected with first flow controller 81 and second flow controller 82；Second flow controller 82 enters with the air of atomizer 3
Mouth 36 is connected；First flow controller 81 is connected with the air inlet 42 of air mixer 4 second；The atomization gas outlet 35 of atomizer 3
It is connected with the air inlet 41 of air mixer 4 first；The mixing gas outlet 43 of air mixer 4 and the outer tube air inlet of bimetallic tube 5
Mouth 521 is connected；
First flow controller 81 and second flow controller 82 are connected with the flow controller port of control system 9 respectively；
Humidity sensor 71, the second humidity sensor 72 and the 3rd humidity sensor 73 are connected with humidity sensor port respectively.
The application method of aerosol humidity compensating sampling device：
(1) if the 3rd humidity sensor of the second humidity sensor 72 and exit at the import of perfluoro sulfonic acid membrane inner tube 51
The humidity differences of device 73 are less than 1%, and control system 9 closes first flow controller 81 and second flow controller 82；
(2) if the humidity of the second humidity sensor 72 of perfluoro sulfonic acid membrane inner tube 51 is more than the 3rd humidity sensor 73
Humidity, control system 9 opens first flow controller 81 and second flow controller 82；Humidity according to air mixer 4 is passed
The flow of the humidity size adjustment first flow controller 81 of sensor 71 and second flow controller 82 so that the second humidity sensor
72 and exit the 3rd humidity sensor 73 humidity differences be less than 1%.
(3) if the humidity of the second humidity sensor 72 of perfluoro sulfonic acid membrane inner tube 51 is less than the 3rd humidity sensor 73
Humidity, control system 9 opens first flow controller 81, second flow controller 82 is closed, by finely tuning first flow control
The flow of device 81, that is, control the flow of the purge gass of outer tube 52 so that the 3rd of the second humidity sensor 72 and exit is wet
The humidity differences for spending sensor 73 are less than 1%.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each part, connected mode and manufacture craft etc. are all
Can be what is be varied from, every equivalents carried out on the basis of technical solution of the present invention and improvement should not be excluded
Outside protection scope of the present invention.
Claims (3)
1. aerosol humidity compensating sampling device, it is characterised in that mixed including air filter (2), atomizer (3), air
Clutch (4), bimetallic tube (5) and aerosol sampling pipe (6)；
Air mixer (4) includes air blender, and multiple disturbance plates (44) staggeredly are provided with air blender；Air is mixed
Mould assembling bottom is provided with the first air inlet (41) and the second air inlet (42), and top sets mixing gas outlet (43), mixes outlet
There is humidity sensor (71) at mouth (43) place；
Bimetallic tube (5) includes perfluoro sulfonic acid membrane inner tube (51) and outer tube (52), and outer tube (52) coaxial line is enclosed within perfluorinated sulfonic acid
Outward, there is outer tube gas outlet (522) described outer tube (52) one end to film inner tube (51), and the other end has outer tube air inlet
(521)；The second humidity sensor (72) is provided with perfluoro sulfonic acid membrane inner tube (51) import and exit sets the 3rd humidity and passes
Sensor (73)；
Sampling of aerosol pipe (6) bottom is connected with the exit of the perfluoro sulfonic acid membrane inner tube (51) of bimetallic tube (5)；Sampling of aerosol
Pipe (6) top is rain-proof bend, and the conical platform (61) of rain-proof bend end connection, conical platform (61) mouth sets steel wire protection
Net；
Control system (9) includes signal processor (91), and signal processor has flow controller port, humidity sensor on (91)
Port, communication interface；
The air inlet of air filter (2) is connected with air compressor (1), and gas outlet is connected with threeway (80), threeway (80)
It is connected with first flow controller (81) and second flow controller (82) respectively again；Second flow controller (82) and atomizer
(3) air intlet (36) connection；First flow controller (81) is connected with the air inlet (42) of air mixer (4) second；Mist
Atomization gas outlet (35) for changing device (3) are connected with the air inlet (41) of air mixer (4) first；The mixing of air mixer (4)
Gas outlet (43) is connected with the outer tube air inlet (521) of bimetallic tube (5)；
First flow controller (81) and second flow controller (82) connect with control system (9) flow controller port respectively
Connect；Humidity sensor (71), the second humidity sensor (72) and the 3rd humidity sensor (73) respectively with humidity sensor port
Connection.
2. aerosol humidity compensating sampling device according to claim 1, it is characterised in that described air filter
(2) including three cartridge filters being sequentially connected in series, respectively the first cartridge filter (21), the second cartridge filter (22) and the 3rd cartridge filter
(23), each cartridge filter top is import, and bottom is outlet, and all there is stainless steel cloth (24) and dust-proof at two ends respectively in cartridge filter
Cotton (25), stainless steel cloth (24) and dust-proof cotton (25) are wrapped in filter material, and the filter material of the first cartridge filter (21) is silica gel, the second mistake
The filter material of filter cylinder (22) is molecular sieve, and the filter material of the 3rd cartridge filter (23) is activated carbon；The import of the first cartridge filter (21) is sky
Gas filter (2) air inlet, the outlet of the 3rd cartridge filter (23) is the gas outlet of air filter (2).
3. aerosol humidity compensating sampling device according to claim 1 and 2, it is characterised in that described atomizer (3)
Have vertical partition plate (31) including cylindrical case, in cylindrical case, spray chamber and reservoir chamber will be divided into cylindrical case, vertically every
There is gap on plate (31) base with the bottom of cylindrical case；There are cone type pipeline (33), cone type pipeline (33) in spray chamber
Osculum upward, the bottom of cone type pipeline (33) is the air intlet (36) of atomizer (3)；Cone type pipeline (33) is outward
Conical sleeve (32) is cased with, space is left between cone type pipeline (33) and conical sleeve (32)；Conical sleeve (32) top is higher than circle
Frustum type pipeline (33) osculum, conical sleeve (32) bottom is also equipped with atomization and clashes into piece (34), and atomization is clashed into piece (34) top and is
Atomization gas export (35)；Water supplement port (37) is arranged at reservoir chamber top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610126059.4A CN105784933B (en) | 2016-03-04 | 2016-03-04 | Aerosol humidity compensating sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610126059.4A CN105784933B (en) | 2016-03-04 | 2016-03-04 | Aerosol humidity compensating sampling device |
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| CN105784933A CN105784933A (en) | 2016-07-20 |
| CN105784933B true CN105784933B (en) | 2017-07-07 |
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| CN201610126059.4A Expired - Fee Related CN105784933B (en) | 2016-03-04 | 2016-03-04 | Aerosol humidity compensating sampling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112619302A (en) * | 2020-12-07 | 2021-04-09 | 安徽普源分离机械制造有限公司 | Filtering device for gas detection and oxygen content detection system of centrifugal machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762407B (en) * | 2010-01-29 | 2012-11-21 | 北京华瑞核安科技有限公司 | Radiation environment high flow rate automatic aerosol sampler |
| CN201935838U (en) * | 2010-12-31 | 2011-08-17 | 中国船舶重工集团公司第七一八研究所 | Aerosol sampling device applicable to high-temperature, high-pressure and high-humidity pipeline environment |
| CN103018146A (en) * | 2012-11-29 | 2013-04-03 | 安徽蓝盾光电子股份有限公司 | PM2.5 monitor with aerosol humidity controller |
| CN103472035B (en) * | 2013-09-06 | 2015-08-19 | 河北先河环保科技股份有限公司 | A kind of atmospheric aerosol moisture-absorption characteristics and Solid angle scattering coefficient measuring instrument |
| KR101499672B1 (en) * | 2014-04-29 | 2015-03-06 | 대한민국 | A standard aerosol sampling system |
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| CN105784933A (en) | 2016-07-20 |
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