CN208427075U - More sheath Atmospheric Chemistry laminar flow reaction systems - Google Patents
More sheath Atmospheric Chemistry laminar flow reaction systems Download PDFInfo
- Publication number
- CN208427075U CN208427075U CN201820780905.9U CN201820780905U CN208427075U CN 208427075 U CN208427075 U CN 208427075U CN 201820780905 U CN201820780905 U CN 201820780905U CN 208427075 U CN208427075 U CN 208427075U
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- CN
- China
- Prior art keywords
- reaction
- quartz ampoule
- laminar flow
- reactive agent
- atmospheric chemistry
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 58
- 239000000926 atmospheric chemistry Substances 0.000 title claims abstract description 12
- 239000010453 quartz Substances 0.000 claims abstract description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000003708 ampul Substances 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 6
- 239000004575 stone Substances 0.000 claims description 2
- 239000000376 reactant Substances 0.000 abstract description 11
- 238000002474 experimental method Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- 230000006911 nucleation Effects 0.000 description 9
- 238000010899 nucleation Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000013618 particulate matter Substances 0.000 description 8
- 239000012495 reaction gas Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000035484 reaction time Effects 0.000 description 6
- 210000005239 tubule Anatomy 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical compound O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical group [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 1
- 239000005427 atmospheric aerosol Substances 0.000 description 1
- LJDFMPKBVBOTIK-UHFFFAOYSA-N azanium;hydrogen sulfate;hydrate Chemical compound N.O.OS(O)(=O)=O LJDFMPKBVBOTIK-UHFFFAOYSA-N 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008821 health effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000000633 nuclear envelope Anatomy 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model discloses a kind of more sheath Atmospheric Chemistry laminar flow reaction systems, including reactive agent and insulating tube, the reactive agent is embedding to be set in insulating tube, the reactive agent includes three-layer reaction quartz ampoule, three-layer reaction quartz ampoule one end is fixedly connected by reducer union, two layers of the inside reaction quartz ampoule one end is provided with air inlet, and the other end is provided with hexagonal spoke, and outermost reaction quartz ampoule one end is provided with gas outlet.The utility model reactant reaction residence time is short, and experiment condition can be altered as desired, and reaction tube uses quartz material, inertia is non-porous, translucency effectively reduces experiment interference well, can carry out reaction of high order simultaneously, prevent cross jamming, increase practicability, reaction tube is provided with hexagonal spoke, increases air-flow stationarity, prevents turbulent flow from generating, the utility model convenient disassembly, effectively reduces production and maintenance cost.
Description
Technical field
The utility model relates to atmospheric aerosol monitoring and controls, and in particular to a kind of more sheath Atmospheric Chemistry laminar flow reaction systems
System.
Background technique
Atmosphere pollution is mainly divided into primary pollution and secondary pollution according to source emission is carried out, and primary pollution is by arranging
Source direct emission is put, secondary pollution is that after chemical reaction secondary conversion is formed primary pollution in an atmosphere, its general poison
Property is greatly enhanced than primary pollution.It is to be nucleated to be formed newly by gas-to-particle process by gaseous precursors object that new particle, which generates event,
Particulate matter process, be the main particulate matter generation type in addition to primary emission particulate matter.Newest modeling knot
Fruit shows that new particle forms event and is significantly larger than primary emission to global particulate count concentration volume average contribution.Had by volatility
The precursors such as machine object are increasingly complex by the secondary organic aerosol composition that atmospheric oxidn is formed, since it is with stronger pole
Property, hygroscopicity and dissolubility, have bigger influence on extinction characteristic, at cloud condensation nucl ability, health effect etc..
Observe that new particle generation phenomenon is characterized in that 3-10nm or 20nm nuclear membrane state particulate count is dense in real atmosphere
Degree sharply increases, and the new particle of generation is nano level superfine particulate matter.About new particle generate event scientific theory be mainly
Classical binary nucleation theory and ternary nucleation theory, classical binary nucleation theory are mainly based upon to sulfuric acid-water nucleation process
Research, and it is widely used in observed new particle generation phenomenon；Ternary nucleation theory is from classical binary nucleation theory
Grow up in basis, in an atmosphere may in this way since the presence of Ammonia in Atmosphere will be greatly reduced sulfuric acid vapor pressure
There is Sulfuric Acid-Ammonia gas or sulfuric acid-water nucleation, i.e. ammonia-sulfuric acid-water ternary nucleation theory.Although researcher has nucleation theory
It is certain to understand, but its fundamental reaction dynamics and reaction mechanism not yet illustrate completely, establish Atmospheric particulates and are formed and increase mould
Type, it is necessary first to design the laboratory reaction simulation and control system of a set of high response time.The indoor simulation of mainstream is real at present
Test is to be completed by smog box system, but the system is not suitable for observation new particle generation phenomenon and particulate matter forms the pollution at initial stage
Object, main cause have two o'clock: first is that smog box volume is big, its general normal volume is all in 5m3More than, after reactant enters system
Reaction time is longer, causes on-line instrument that can only monitor the physicochemical property of the particulate matter grown completely, can not be obvious
Observe the initial procedure that new particle generates and increases；Second is that smog box is made of teflon material, surface has certain
The ability of particulate matter is absorbed and released, and the process is reversible.It is less problematic when reactant concentration is much higher than releaser, but
New particle, which generates simulated experiment, to be completed in relatively clean environment, and reactant and product concentration are lower and require very
Accurately, and by the smog box Surface absorption of Teflon production and the particulate matter of release experiment can be caused potentially to interfere, caused
Experimental error.
Utility model content
Purpose of utility model: the purpose of the utility model is to provide a kind of more sheath Atmospheric Chemistry laminar flow reaction systems, solve
The problem of existing reaction system reaction time is long, interferes greatly reaction process, causes experimental error, and inconvenience disassembly is cleared up.
Technical solution: more sheath Atmospheric Chemistry laminar flow reaction systems described in the utility model, including reactive agent and heat preservation
Pipe, the reactive agent is embedding to be set in insulating tube, and the reactive agent includes three-layer reaction quartz ampoule, three-layer reaction quartz
Pipe one end is fixedly connected by reducer union, and two layers of the inside reaction quartz ampoule one end is provided with air inlet, and the other end is respectively provided with
There is hexagonal spoke, outermost reaction quartz ampoule one end is provided with gas outlet.
The circulation of water is formed in order to facilitate connection constant temperature water bath apparatus, the insulating tube both ends are provided with intake-outlet.
It is connected in order to facilitate three layers of independent quartz ampoule, allows tubule can be with free extension, and reach sealing and do not leak
The purpose of gas, the reducer union are two.
It is used in order to facilitate connection instrument, the gas outlet is five.
Various pieces are linked together for convenience, guarantee sealing, easy cleaning, the reactive agent two sides are respectively provided with
There is flange.
The utility model has the advantages that the utility model reactant reaction residence time is short, experiment condition can be altered as desired, reaction tube uses
Quartz material, inertia is non-porous, and translucency effectively reduces experiment interference well, can carry out reaction of high order simultaneously, prevent from intersecting
Interference increases practicability, and reaction tube is provided with hexagonal spoke, increases air-flow stationarity, prevents turbulent flow from generating, the utility model is torn open
It unloads conveniently, effectively reduces production and maintenance cost.
Detailed description of the invention
Fig. 1 is the structural scheme of mechanism of the utility model；
Fig. 2 is quartz ring structural schematic diagram；
Fig. 3 is hexagonal spoke structure schematic diagram.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
As shown in Figure 1-3, more sheath Atmospheric Chemistry laminar flow reaction systems, including reactive agent and insulating tube 1, reactive agent is embedding
It is set in insulating tube, reactive agent includes three-layer reaction quartz ampoule 2, and 1 both ends of insulating tube are provided with intake-outlet 6, is led to
It crosses intake-outlet and forms water circulation, water bath with thermostatic control is provided, maintain temperature in reaction system constant, to guarantee reactant in reaction
It will not be influenced by temperature change, outermost insulating tube respectively has an opening in front-end and back-end, one of them is water inlet one
A is water outlet, and is connect with constant temperature water bath apparatus, achievees the purpose that circulation.During the experiment, change length, stream can be passed through
Amount, temperature and humidity, illumination change experiment condition such as volume, reaction time, flowing time, to reach experiment purpose.Three layers of quartz
Pipe is reaction tube, and wherein three-layer reaction outer tube layer is fixed, two layers of the inside movable expanding, and two layers of the inside is integrally grown by the system
1.9m, it is 130mm that outer layer, which keeps the temperature pipe outside diameter, and the internal diameter of three-layer reaction pipe is respectively 94mm, 31mm, 8.5mm.Reaction time passes through
Formula control:
Wherein r is the radius of quartzy bore, and d is pipe range, and v is reactant flow velocity, and T is reactant intraductal retention time.
Reactant flowing time in a device is controlled by changing pipe range and flow velocity, controlled range is between 0.1s-30s.
Three-layer reaction quartz ampoule one end is connect by two having a size of 1/2 inch of -35mm and 35mm-50mm variable diameter by two
First 3 connection, will get through at reducer union small size, tubule can be allowed to be inserted in big pipe, prevent gas leakage using O-ring seals sealing.?
Reactive agent two sides are respectively provided with flange 5, with easy to disassemble, and are sealed with O V-shaped ring.Reaction tube selects reaction tube selection quartz
Material is made, and inertia is non-porous, and quartz has good translucidus, can study the chemical reaction of illumination participation simultaneously.Reaction
Three layers of disturbing reaction that can be prevented between reactant are arranged in pipe, and design is connected and fixed quartz ring 9 at air inlet, and in quartz ring
It uniformly perforates on 9, guarantees that inlet air flow is uniformly and steady, be easier to reach laminar flow effect.The quartz ring of setting is not closed completely,
It is to there is a small quartz ampoule to imported into ring, then the small quartz ampoule other end exports to outside pipe, and reaction gas just enters stone outside pipe
Ying Huan, then in redisperse to reaction tube, it is by 2 reducing evacuated connectors that two layers of the inside quartz ampoule is flexible, and thick one end can
To withstand thicker pipe, thin one end is got through, and such tubule can stretch in connector, after stretching to desired length again
Connector is tightened, and ensures that seal in this way.Two layers of the inside reaction quartz ampoule one end is provided with air inlet 4, and the other end is respectively provided with
There is hexagonal spoke 7, uniform pore openings in hexagonal spoke can provide support to mobile quartz ampoule, be uniformly mixed reactant, guarantee
Laminar flow prevents turbulent flow from generating.Outermost reaction quartz ampoule one end is provided with 5 gas outlets 8, and gas outlet is for connection instrument
Device uses.The present apparatus is divided into 3 parts, front end middle-end and rear end, and since quartz is frangible, and difficulty of processing is big, so needing to divide
Open processing.Setting flange allows 3 parts to link together, and guarantees sealing, and then flange is dismountable, both can be convenient in this way
Cleaning, and may be easy to re-working or replacing for damage component.
In the reaction of practical the utility model simulated atmosphere chemistry laminar flow, three reaction gas are each led into from steel cylinder pass-out
Three-layer reaction pipe, first reaction gas are passed directly into tubule, disperse pass-out from hexagonal spoke；Second reaction gas is therefrom managed
Air inlet is passed through, and disperses pass-out from quartz ring, quartz ring and hexagonal spoke can disperse reaction gas, mix it faster
It is even.Two such reaction gas can meet and react in middle pipe, then select different length to control by stretching tubule
Reaction time processed.Third reaction gas is passed through from big pipe air inlet pipe, from quartz ring disperse pass-out, and with the first two reaction gas
Product occur second order reaction, then by stretch in pipe select different length to control the reaction time.Final reacting product
It is detected in gas outlet by instrument, excessive gas is discharged in tail gas mouth.Outermost layer keeps the temperature water inlet tube, is established using constant temperature water bath apparatus
Second constant temperature field controls reaction temperature, after open flange and vacuum adapter, device each section is dismantled and is cleaned.
Claims (5)
1. a kind of more sheath Atmospheric Chemistry laminar flow reaction systems, which is characterized in that described anti-including reactive agent and insulating tube (1)
Answer main body is embedding to be set in insulating tube (1), the reactive agent includes three-layer reaction quartz ampoule (2), three-layer reaction quartz ampoule
(2) one end is fixedly connected by reducer union (3), and two layers of the inside reaction quartz ampoule one end is provided with air inlet (4), the other end
It is provided with hexagonal spoke (7), outermost reaction quartz ampoule one end is provided with gas outlet (8), and the air inlet (4) connects stone
Ying Huan (9).
2. more sheath Atmospheric Chemistry laminar flow reaction systems according to claim 1, which is characterized in that the insulating tube both ends are equal
It is provided with intake-outlet (6).
3. more sheath Atmospheric Chemistry laminar flow reaction systems according to claim 1, which is characterized in that the reducer union (3)
It is two.
4. more sheath Atmospheric Chemistry laminar flow reaction systems according to claim 1, which is characterized in that the gas outlet (8) is
Five.
5. more sheath Atmospheric Chemistry laminar flow reaction systems according to claim 1, which is characterized in that the reactive agent two sides
It is provided with flange (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820780905.9U CN208427075U (en) | 2018-05-23 | 2018-05-23 | More sheath Atmospheric Chemistry laminar flow reaction systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820780905.9U CN208427075U (en) | 2018-05-23 | 2018-05-23 | More sheath Atmospheric Chemistry laminar flow reaction systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208427075U true CN208427075U (en) | 2019-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820780905.9U Expired - Fee Related CN208427075U (en) | 2018-05-23 | 2018-05-23 | More sheath Atmospheric Chemistry laminar flow reaction systems |
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| CN (1) | CN208427075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435269A (en) * | 2018-05-23 | 2018-08-24 | 南京信息工程大学 | More sheath Atmospheric Chemistry laminar flow reaction systems |
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2018
- 2018-05-23 CN CN201820780905.9U patent/CN208427075U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435269A (en) * | 2018-05-23 | 2018-08-24 | 南京信息工程大学 | More sheath Atmospheric Chemistry laminar flow reaction systems |
| CN108435269B (en) * | 2018-05-23 | 2023-05-26 | 南京信息工程大学 | Multi-sheath atmospheric chemical laminar flow reaction system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 210044 No. 219 Ning six road, Jiangbei new district, Nanjing, Jiangsu Patentee after: Nanjing University of Information Science and Technology Address before: 211500 Yuting square, 59 Wangqiao Road, Liuhe District, Nanjing City, Jiangsu Province Patentee before: Nanjing University of Information Science and Technology |
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| CP02 | Change in the address of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190125 |