CN205607806U - Environmental chamber system of black carbon aerosol inhomogeneous reaction of simulation - Google Patents
Environmental chamber system of black carbon aerosol inhomogeneous reaction of simulation Download PDFInfo
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- CN205607806U CN205607806U CN201620160579.2U CN201620160579U CN205607806U CN 205607806 U CN205607806 U CN 205607806U CN 201620160579 U CN201620160579 U CN 201620160579U CN 205607806 U CN205607806 U CN 205607806U
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Abstract
The utility model provides an environmental chamber system of black carbon aerosol inhomogeneous reaction of simulation, including deceiving carbon aerosol inhomogeneous reaction system, should hold the black carbon aerosol emergence system that is connected with, reaction gas to take place system and clean air emergence system by black carbon aerosol inhomogeneous reaction system entrance, a monitoring system is connected to the exit end. Can simulate the atmosphere actual conditions as far as possible really through this environmental chamber system, build simply, area is little, has better repeatability.
Description
Technical field
This utility model relates to environmental studies method field, is specifically related to one and is available in laboratory simulation atmospheric environment black
The environmental chamber system of carbon aerosol inhomogeneous reaction.
Background technology
Black carbon aerosols refers to the particulate matter that the carbonaceous material imperfect combustion such as fossil or biomass fuel generates.Black carbon is
The representative substances of traffic source air pollution and PM2.5Important component, in an atmosphere concentration typically several to ten several μ g/
m3Left and right, all has appreciable impact to climate change and health.
Under different combustion cases, the organic and DIC composition of black soot particulate matter, particle diameter be distributed all can great changes have taken place, this
Black carbon aerosols chemical property in an atmosphere can be produced significant impact.The black carbon of new discharge typically can be through a series of air
Course of reaction so that the physicochemical properties of itself change, changes its feature such as hygroscopicity, toxicity to some extent,
Thus affect its weather and health effect.Inhomogeneous reaction is the important channel that black carbon aerosols is aging, smelly in environment
The oxidisability gaseous materials such as oxygen, this process is all played impact in various degree by the environmental condition such as illumination, humidity.
For aerocolloidal laboratory research, environmental chamber is a kind of reactor that can preferably simulate Real Atmosphere environment.
And lot of domestic and foreign is paid close attention in the research of laboratory simulation black carbon aerosols atmospheric reaction process, the overwhelming majority uses flow duct to make
For reactor (black soot particulate matter is in stacking states), truly simulated by environmental chamber that (black soot particulate matter is in suspended dispersed shape
State) still occupy the minority.
The environmental chamber system of the black carbon aerosols atmospheric reaction process simulation used in existing domestic and international research, its big portion
Divide area occupied big, form complex, instrument and equipment is required higher, and can not accomplish control black carbon aerosols simultaneously
Burning formation condition (particle diameter, concentration such as black carbon granule control) and monitoring participate in the process of reactant gas inhomogeneous reaction
(as reaction rate, particulate count concentration change, physicochemical characteristic change) and probe into influence factor (as ultraviolet lighting, burning bar
Part, humidity) to the mechanism of action (such as the dependency of the mechanism of action, physicochemical characteristic and course of reaction) reacted.Thus one to the greatest extent may be used
Can be smaller, simpler, reproducible and can pay close attention to simultaneously and control the environmental chamber system of multiple course of reaction factor of influence
Set up, researcher can be helped preferably to explore the atmospheric reaction process of black carbon aerosols.
Utility model content
For overcoming above-mentioned deficiency, this utility model provides the environment nacelle of a kind of simulating black carbon aerosol inhomogeneous reaction
System, it is possible to simulated atmosphere practical situation the most truly, builds simple, and floor space is little, has preferable repeatability.
For solving above-mentioned technical problem, this utility model be the technical scheme is that
The environmental chamber system of a kind of simulating black carbon aerosol inhomogeneous reaction, including black carbon aerosols inhomogeneous reaction system
System, this black carbon aerosols inhomogeneous reaction system entry end connects black carbon aerosols generation system, reacting gas generation system
With clean air generation system, the port of export connects a monitoring system.
Further, described black carbon aerosols generation system includes a black carbon aerosols generator, and this black carbon aerosols is sent out
The arrival end of raw device connects gas bomb, and connecting in the exit of this gas bomb has mass flow controller；This black carbon gas
The port of export of colloidal sol generator connects a three-way valve, and three-way valve one outlet connects a particulate matter filter device, and another outlet is successively
Connect two grades of diluters, electrostatic charge neutralization and exhaust gas cleaner.
Further, described two grades of diluters are also connected with a particulate matter filter device, in described two grades of diluters and electrostatic
Connector interface is jointly connected out with device.
Further, described exhaust gas cleaner includes an air denuder, and it is by the anemostat of four band stainless (steel) wires
It is composed in series.
Further, described reacting gas generation system includes a generator, and the arrival end of generator connects gas steel
Bottle, the exit of this gas bomb connects a mass flow controller；The port of export of generator connects a three-way valve, three-way valve one
Outlet connects an emission-control equipment.
Further, described emission-control equipment includes a Drexel bottle, fills the liquid of absorbable waste gas in bottle.
Further, described clean air generation system includes an air cleaner, the arrival end of air cleaner
Connecting an air compressor, the port of export connects a three-way valve, and three-way valve one outlet connects a spinner flowmeter, and another outlet is successively
Connect Drexel bottle and a spinner flowmeter of two series connection.
Further, described air cleaner includes four anemostats connected and a high-efficiency particulate filter,
Grain thing defecator is connected to the port of export of the 4th anemostat.
Further, described black carbon aerosols inhomogeneous reaction system includes environmental chamber and environmental chamber casing, and environmental chamber can
It is detachably connected with in environmental chamber box house；Environmental chamber casing is provided with and adds thermoelectric plate, windowpane, humiture sensing and control
Device and heat emission fan, with scale on described windowpane, described humiture sensing and control device respectively with heat emission fan and environment
Cabin connects；Be provided with multiple fast joint interface and multiple fluorescent tube in environmental chamber casing both sides, described fast joint interface is with environmental chamber even
Connecing, it is 365 nanometers or 254 nanometers that described fluorescent tube sends the wavelength of light.
Further, described black carbon aerosols generation system, reacting gas generation system and clean air generation system
End is respectively connected with fast joint.
The beneficial effects of the utility model are, can be by changing burning condition, as controlled air and burning gases (such as third
Alkane) ratio, control the composition (organic carbon and the accounting of DIC) of black soot particulate matter and the particle size range (10-200 generated
Nanometer)；Can more accurately control to participate in oxidation or the concentration level of reproducibility gas (such as ozone, formaldehyde) of inhomogeneous reaction；
Also can control intensity of illumination and time, temperature, humidity one class can affect the environmental condition of black carbon aerosols inhomogeneous reaction process.
The combustion tail gas containing black carbon aerosols entering environmental chamber, also by using air denuder, is processed, keeps away by this system
Exempt from the entrance environmental chambers such as ozone therein, nitrogen oxides, volatile organic matter affect course of reaction；It addition, by air pressure
The supply of pure air during the use guarantee experimental simulation of contracting machine and cleaning system etc.；Environmental chamber is devised lucifuge simultaneously
The casing of stainless steel, can effectively maintain temperature and the illumination condition of environmental chamber subenvironment, windowpane with a scale on it
Design can judge that environmental chamber filled volume is to keep experimental repeatability simply.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of the environmental chamber system of a kind of simulating black carbon aerosol inhomogeneous reaction.
Fig. 2 is the structural representation of black carbon aerosols generation system.
Fig. 3 is the structural representation of ozone generation system.
Fig. 4 is the structural representation of formaldehyde generation system.
Fig. 5 is the structural representation of clean air generation system.
Fig. 6 is the structural representation of exhaust gas cleaner
Fig. 7 is the structural representation of air cleaner.
Fig. 8 is the right flank schematic diagram of black carbon aerosols inhomogeneous reaction system.
Sign flag illustrates:
1～black carbon aerosols generation system；2～reacting gas generation system；
3～clean air generation system；4～black carbon aerosols inhomogeneous reaction system；
5～monitoring system；6,61,62～gas bomb；
7,71,72～mass flow controller；8～black carbon aerosols generator；
9,91～particulate matter filter device；10,101,102,103～the import of three-way valve；
11,111,112,113～three-way valve outlet one；12,121,122,123～the outlet two of three-way valve；
13～two grades of diluters；14,30～fast joint interface；
15～electrostatic charge neutralization；16～exhaust gas cleaner；
17,171,172,173,174～fast joint；18～small ultraviolet lamp ozonator；
19,191,192～Drexel bottle；20～water-bath；
21～formaldehyde generation container；22,221,222～spinner flowmeter；
23～air compressor；24～air cleaner；
25～air denuder；26～the anemostat of band stainless (steel) wire；
27～anemostat；28～high-efficiency particulate filter；
29～windowpane；31～heat emission fan；
32～pulley；33～environmental chamber；
34～humiture sensing and control device；35～politef pipeline；
36～fluorescent tube；37～environmental chamber casing；
38～add thermoelectric plate.
Detailed description of the invention
For making features described above of the present utility model and advantage to become apparent, special embodiment below, and coordinate appended
Figure is described in detail below.
The present embodiment provide a kind of simulating black carbon aerosol inhomogeneous reaction environmental chamber system, as it is shown in figure 1, with black carbon
It is heterogeneous that aerosol generation system 1, reacting gas generation system 2 and clean air generation system 3 together connect black carbon aerosols
Response system 4, then reconnects monitoring system 5, so constitutes this system.
The composition of black carbon aerosols generation system 1 as in figure 2 it is shown, three gas bombs 6 store respectively clean compressed air,
99.99% propane flammable gas and high pure nitrogen, common connection one black carbon aerosols generator 8, the matter being provided with is exported by gas bomb 6
Amount flow controller 7 controls gas flow, connects a three-way valve, three-way valve outlet two in the downstream of black carbon aerosols generator 8
12 are sequentially connected with two grades of diluters 13, electrostatic charge neutralization 15 and exhaust gas cleaner 16, and tail end connects a fast joint 17 and (connects caliber
The pipeline of 6 millimeters, lower same), (can connect fast it addition, two grades of diluters 13 and electrostatic charge neutralization 15 are also connected with a fast joint interface 14
Joint, caliber 6 millimeters, it is closed when disconnecting, lower same), three-way valve outlet 1 connection one particulate matters filter dress
Putting 9, one end of two grades of diluters 13 is also connected with a particulate matter filter device 91.
The concrete application example such as ozone generation system of reacting gas generation system 2 and formaldehyde generation system.Wherein, ozone is sent out
The composition of raw system, as it is shown on figure 3, gas bomb 61 stores high purity oxygen gas, is sequentially connected with mass flow controller 71 and small-sized purple
Outer lamp ozonator 18, then it is divided into two-way by three-way valve, three-way valve outlet 1 connection Drexel bottle 19, bottle is built with sulfur
Sodium thiosulfate solution, uses as exhaust gas absorption device, three-way valve outlet 2 121 connection one fast joint 171.
As shown in Figure 4, gas bomb 62 stores high pure nitrogen to the composition of formaldehyde generation system, is sequentially connected with mass flow control
Device 72 processed and formaldehyde generation container 21, this formaldehyde generation container 21 is immersed in water-bath 20, then it is divided into two-way by three-way valve,
Three-way valve outlet 1 connection one Drexel bottle 191, bottle, built with pure water, uses as exhaust gas absorption device, three-way valve outlet two
122 are sequentially connected with spinner flowmeter 22 and fast joint 172.
Clean air generation system 3 as it is shown in figure 5, air compressor 23 is connected with air cleaner 24, air cleaning
The outlet of device 24 connects a three-way valve and air-flow is divided into two-way, three-way valve outlet 1 are sequentially connected with a spinner flowmeter 221
With fast joint 173, the Drexel bottle 192 of three-way valve outlet 2 123 two series connection of connection, wherein it is respectively arranged with pure water, humidifies for air-flow,
Drexel bottle 193 outlet is sequentially connected with a spinner flowmeter 222 and fast joint 174.
Exhaust gas cleaner 16 as shown in Figure 6, mainly includes an air denuder 25, and it is by four cylinder shape belt rustless steels
The anemostat 26 of stainless (steel) wire is composed in series, and has pipeline that stainless (steel) wire constitutes with by particulate matter in pipe central authorities, from left to right
It is separately filled with granular acticarbon, ozone adsorbent, absorbent for carbon monooxide and silica gel absorber, gas flow circuitry
With direction as shown in FIG..
Air cleaning system 24, as it is shown in fig. 7, mainly include four anemostats connected 27, is filled out respectively and is filled with graininess
Acticarbon, ozone adsorbent, absorbent for carbon monooxide and silica gel absorber, the outlet of the 4th anemostat connects one
High-efficiency particulate filter 28.
Fig. 8 is the right flank schematic diagram of black carbon aerosols inhomogeneous reaction system, including: add thermoelectric plate 38；Windowpane 29,
Carry light tight push pedal and scale, the filled volume in cabin can be judged according to scale；Fast joint interface 30, can connect fast joint, caliber 6 milli
Rice, is closed when disconnecting；Fluorescent tube 36, wavelength is 365 nanometers, 254 nanometers, and it is branched that left and right sides all mixes placement；
Heat emission fan 31；Pulley 32；Environmental chamber 33, it is bag-shaped, and in pillow-type after gassy, volume 400 liters, four limit sealed suspensions are in case
In, detachably；Humiture sensing and control device 34, be connected with heat emission fan 31, can programme-control；Politef pipeline 35,
Caliber 4 millimeters, connects humiture sensing and controls the induction apparatus in device 34 and environmental chamber 33；Environmental chamber casing 37, material is
Rustless steel.
Environmental chamber 33 can be first carried out before starting by simulation experiment.By the fast joint 174 of clean air generation system 3 even
The fast joint interface 30 of T-Ring border compartment-box body 37 (in three fast joint interfaces 30 above left surface in preferably Fig. 8).
The three-way valve of clean air generation system 3 is exported 1 and opens (three-way valve outlet 2 123 closedown), open air compressor
23, environmental chamber 33 can open other any one fast joint interfaces 30 on environmental chamber casing 37 after being full of dried and clean air, outward
Connect the gas bleeding of a minipump (not illustrating in the drawings), by repetitious inflation/deflation, reach clean environment cabin 33
Internal effect, can introduce ozone if desired the most simultaneously or humid air is carried out.In testing end and discharging cabin after gas,
Taking the same manner to be carried out, the most detachable lower environmental chamber 33 carries out exterior washings.
Before simulation experiment starts, first it is continuing with above-mentioned connected mode, in environmental chamber 33, is filled with 200 liters of dried and clean skies
Gas, stops and disconnecting the external connection of all casings.By black carbon aerosols generation system 1 by the fast joint 17 in its system with
Fast joint interface 30 is connected (preferably connecting in Fig. 8 one in three fast joint interfaces 30 above left surface).Now by threeway
Valve outlet port 1 is opened, and opens power supply and the gas bomb 6 of black carbon aerosols generator 8 successively, by mass flow control
Device 7 adjusts and controls each gas flow rate, by regulating the granule on each gas different in flow rate ratio and black carbon aerosols generator 8 panel
The knobs such as particle diameter (are not illustrated in the drawings), and in the black carbon aerosols that scalable occurs, the difference of black wood charcoal granule forms when particle
Footpath size.174 union joints of clean air generation system 3 are connected with the fast joint interface 30 of environmental chamber casing 37 simultaneously.Treat
After being adjusted to required condition, and the black carbon aerosols generator 8 stable burning black carbon of generation, three-way valve outlet 2 12 is opened (three
Logical valve outlet port 1 is closed), the regulation air compressor 23 of rapid clean air generation system 3 reaches specified outlet pressure, and
Starting timing, the purest black carbon aerosols enters environmental chamber 33.It is passed through the time by aerosol and flow velocity can calculate in cabin
The concentration of black soot particulate matter.After reaching time rating, three-way valve outlet 1 is opened (three-way valve outlet 2 12 closedown), successively
Close gas bomb 6, air compressor 23, black carbon aerosols generator 8, and be each turned off black carbon aerosols generation system 1 with
Environmental chamber casing 37, the connection of clean air generation system 3.Said process, as calculated, needs measure flow velocity in advance and use prison
Black soot particulate matter concentration etc. under the measurement equipment free burning condition of test, the operation of this utility model does not illustrate this process.
After stopping being filled with black carbon aerosols, can go again and be filled with to environmental chamber 33 clean empty by clean air generation system 3
Gas mixes, and carrys out volume of gas in computing environment cabin 33 according to actually required concentration in advance, is observed by windowpane 29 and sentences
After disconnected environmental chamber 33 both sides reach the corresponding scale on windowpane 29, close and disconnect clean air generation system 3.
During the inhomogeneous reaction of simulating black carbon aerosol, can proceed as follows according to demand:
One, black carbon aerosols and dry reaction gas (with ozone and formaldehyde as example) react.If using ozone conduct
Reacting gas, as it is shown on figure 3, the three-way valve of ozone generation system is exported 1 open (three-way valve outlet 2 121 closedown),
Open gas bomb 61, mass flow controller 71, ozonator 18 successively, control gas by mass flow controller 71
Flow velocity, controls ozone concentration by ozonator 18 panel.After instrument preheating and occurring to stablize, by fast joint 171
It is connected with fast joint interface 30 (being preferably connected in Fig. 7 one in three fast joint interfaces 30 above left surface), regulation pass
Close three-way valve outlet 1, open three-way valve outlet 2 121, be passed through concentration known ozone timing to environmental chamber 33.Equally,
By being calculated ozone concentration in cabin.After end, disconnect ozone generation system and the connection of environmental chamber casing 33.If use first
Aldehyde is as reacting gas, and as shown in Figure 4, formaldehyde generation system is taked to operate more than similar, except for the difference that, and need to be first by water-bath
20 are heated to rated temperature, then open the operations such as gas cylinder 62 successively.If needing successively to use ozone and formaldehyde to react, with
Aforesaid operations followed by sample.
Two, the change of environmental condition (humidity, temperature, illumination).When needing to change cabin humidity, pure air can be passed through
Time be air wetting, concrete operations are: the three-way valve of clean air generation system 3 exported and 2 123 open, export one 113 passes
Closing, fast joint 173 connects with the fast joint interface 30 of environmental chamber casing 37, and other operations are with the generation of above-mentioned dried and clean air
Operation.When needing to change temperature, can be sensed and control device 34 by humiture and arrange, its heating backing plate 38 controlled and heat radiation
Fan 31 can be according to the discrepancy adjustment duty of actual temperature and design temperature；In environmental chamber 33, temperature, humidity all can be by temperature
Humidity inductive and control device 34 read.When needing to change illumination, open 365 nanometers according to the actual requirements or 254 nanometers are different
The fluorescent tube 36 of number, intensity of illumination need to use irradiatometer to measure in advance, not be described in this utility model.
Three, complex conditions.When black carbon aerosols changes composition or particle diameter, also can change reacting gas situation and ring simultaneously
Border condition, only needs according to demand and priority described above carries out different operations.
More than being discussed in detail for this utility model, this utility model design system is many, can carry out black carbon gas the most comprehensively
The research of colloidal sol inhomogeneous reaction difference demand, it can be applicable to multiple association areas of black carbon aerosols inhomogeneous reaction, as
Before and after black carbon aerosols air inhomogeneous reaction physico-chemical property change, climatic effect (cloud condensation nucl effect) change, toxicity and
Health hazard changes etc., prepare the black carbon aerosols after inhomogeneous reaction and for other follow-up studies also by native system,
Can make full use of and expand the effect of this utility model by the different choice of follow-up monitoring instrument.
Claims (10)
1. the environmental chamber system of a simulating black carbon aerosol inhomogeneous reaction, it is characterised in that include that black carbon aerosols is non-all
Phase reaction system, this black carbon aerosols inhomogeneous reaction system entry end connects black carbon aerosols generation system, reacting gas
Generation system and clean air generation system, the port of export connects a monitoring system.
The environmental chamber system of simulating black carbon aerosol inhomogeneous reaction the most according to claim 1, it is characterised in that described
Black carbon aerosols generation system includes a black carbon aerosols generator, and the arrival end of this black carbon aerosols generator connects gas
Steel cylinder, connects in the exit of this gas bomb and has mass flow controller；The port of export of this black carbon aerosols generator connects
One three-way valve, three-way valve one outlet connects a particulate matter filter device, and another outlet is sequentially connected with two grades of diluters, electrostatic neutralizes
Device and exhaust gas cleaner.
The environmental chamber system of simulating black carbon aerosol inhomogeneous reaction the most according to claim 2, it is characterised in that described
Two grades of diluters are also connected with a particulate matter filter device, and described two grades of diluters and electrostatic charge neutralization jointly connect out joint and connect
Mouthful.
The environmental chamber system of simulating black carbon aerosol inhomogeneous reaction the most according to claim 2, it is characterised in that described
Exhaust gas cleaner includes an air denuder, and it is composed in series by the anemostat of four band stainless (steel) wires.
The environmental chamber system of simulating black carbon aerosol inhomogeneous reaction the most according to claim 1, it is characterised in that described
Reacting gas generation system includes a generator, and the arrival end of generator connects gas bomb, the exit of this gas bomb
Connect a mass flow controller；The port of export of generator connects a three-way valve, and three-way valve one outlet connects an exhaust-gas treatment dress
Put.
The environmental chamber system of simulating black carbon aerosol inhomogeneous reaction the most according to claim 5, it is characterised in that described
Emission-control equipment includes a Drexel bottle, fills the liquid of absorbable waste gas in bottle.
The environmental chamber system of simulating black carbon aerosol inhomogeneous reaction the most according to claim 1, it is characterised in that described
Clean air generation system includes an air cleaner, and the arrival end of air cleaner connects an air compressor, outlet
End connects a three-way valve, and three-way valve one outlet connects a spinner flowmeter, and another outlet is sequentially connected with the Drexel bottle of two series connection
With a spinner flowmeter.
The environmental chamber system of simulating black carbon aerosol inhomogeneous reaction the most according to claim 7, it is characterised in that described
Air cleaner includes four anemostats connected and a high-efficiency particulate filter, and particulate matter filter device is connected to the 4th
The port of export of individual anemostat.
The environmental chamber system of simulating black carbon aerosol inhomogeneous reaction the most according to claim 1, it is characterised in that described
Black carbon aerosols inhomogeneous reaction system includes environmental chamber and environmental chamber casing, and environmental chamber is detachable is connected to environmental chamber casing
Internal；Environmental chamber casing is provided with and adds thermoelectric plate, windowpane, humiture sensing and control device and heat emission fan, described glass
With scale on window, the sensing of described humiture and control device are connected with heat emission fan and environmental chamber respectively；At environmental chamber casing two
Side is provided with multiple fast joint interface and multiple fluorescent tube, and described fast joint interface is connected with environmental chamber, and described fluorescent tube sends the ripple of light
A length of 365 nanometers or 254 nanometers.
10. according to the environmental chamber of the simulating black carbon aerosol inhomogeneous reaction described in claim 1,2,5 or 7 any claim
System, it is characterised in that described black carbon aerosols generation system, reacting gas generation system and the end of clean air generation system
End is respectively connected with fast joint.
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| CN201620160579.2U CN205607806U (en) | 2016-03-02 | 2016-03-02 | Environmental chamber system of black carbon aerosol inhomogeneous reaction of simulation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769699A (en) * | 2017-01-05 | 2017-05-31 | 北京大学 | A kind of measurement apparatus and measuring method of atmospheric black soot particulate matter phase |
| CN109596468A (en) * | 2018-12-25 | 2019-04-09 | 复旦大学 | A kind of atmospheric aerosol smog system of simulation biomass open burning and measurable particulate count concentration |
-
2016
- 2016-03-02 CN CN201620160579.2U patent/CN205607806U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769699A (en) * | 2017-01-05 | 2017-05-31 | 北京大学 | A kind of measurement apparatus and measuring method of atmospheric black soot particulate matter phase |
| CN106769699B (en) * | 2017-01-05 | 2023-10-17 | 北京大学 | Device and method for measuring atmospheric black carbon particulate matter phase state |
| CN109596468A (en) * | 2018-12-25 | 2019-04-09 | 复旦大学 | A kind of atmospheric aerosol smog system of simulation biomass open burning and measurable particulate count concentration |
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