CN104697823B - Rare earth modified nano coating glass plate self-cleaning gas collecting device - Google Patents
Rare earth modified nano coating glass plate self-cleaning gas collecting device Download PDFInfo
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- CN104697823B CN104697823B CN201510080851.6A CN201510080851A CN104697823B CN 104697823 B CN104697823 B CN 104697823B CN 201510080851 A CN201510080851 A CN 201510080851A CN 104697823 B CN104697823 B CN 104697823B
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Abstract
The invention discloses a rare earth modified nano coating glass plate self-cleaning gas collecting device, and belongs to the fields of atmospheric sciences and environmental sciences. The gas collecting device comprises a gas inlet pipe, a gas collector, a gas outlet pipe, a peristaltic pump, a gathered liquid tank, a feeding pipe, a liquid inlet peristaltic pump, a collected liquid tank, a discharging pipe and a liquid outlet peristaltic pump, wherein the gas inlet pipe is connected with a gas inlet of the gas collector; the gas outlet pipe is connected with a gas outlet of the gas collector; the peristaltic pump is connected with the gas outlet pipe; the gathered liquid tank is connected with a gathered liquid pipeline on the gas collector by virtue of the feeding pipe; and the collected liquid tank is connected with a collected liquid pipeline on the gas collector by virtue of the discharging pipe. The rare earth modified nano coating glass plate self-cleaning gas collecting device disclosed by the invention has the characteristics of being easy to operate, high in gas collection efficiency and the like, and the gas colleting device can be widely applied to the fields of monitoring and research of gaseous pollutants in weather and environment industries as well as occasions in which gaseous pollutants are required to be effectively and rapidly separated from particle components.
Description
Technical field
The present invention relates to atmospheric science and environmental science, more particularly to a kind of rare earth modified nano coated glass plate is certainly
Clean gas collection device, the device have the advantages such as semicontinuous, self-cleaning property in collection and confinement of gases.
Background technology
Atmosphere pollution existence in an atmosphere, is determined by itself physicochemical properties and its forming process,
Meteorological condition also produces certain impact to which.Pollutant in air can substantially be divided to gaseous state and aerosol two big class, both
It is mixed in atmospheric environment.In order to be able to accurately analyze both pollutant characteristics, gaseous contaminant and aerosolized need to be polluted
The component and concentration of thing is effectively separated.As the diffusion rate of gaseous contaminant and aerosolized pollutant differs greatly,
Therefore, many researcheres separate gas-solid pollutant technology using diffusion principle, are applied to the sampling process of Atmospheric Trace pollutant
In, the anemostat of current URG companies production is using wider separation gas-solid pollutant equipment.
This anemostat is to analyze gas-solid pollutant based on adsorption method, and concrete grammar is coated not in diffusion inside pipe wall
Same polarity coating, is typically coated with sodium carbonate and Fructus Citri Limoniae is acid coated, absorbs the sour gas in air-flow respectively（Mainly include SO2
With gaseous state HNO3）With alkaline gas（Predominantly NH3）.The diffusion adsorbed gas ideal state of this dry type is 100% by gas to be measured
Body component is captured on tube wall, waits subsequent analysis.But due to trap time it is longer, it is impossible to realize on-line period analyze.Therefore
A kind of wet denuder is developed now, for gathering Gaseous Pollutants.Typical case's invention has, United States Patent (USP) US6890372,
Which adopts one layer of semipermeable membrane, and side is gas circuit, and opposite side is fluid path.Gaseous contaminant diffusion is through semipermeable membrane by liquid absorption.
The invention solves the problems, such as above-mentioned on-line period, but semipermeable membrane has inhibition, reduces absorbance, and if semipermeable membrane deformation will
Interference gas circuit.Therefore the people once stood in Peking University and Dong Huabin has invented " a kind of Wet type parallel plate gas diffusion collecting pipe "（Application
Number CN102269664）.The invention solves the problems referred to above, although the invention has hydrophilic coating, but exists following not enough：1、
As plate spacing is less, gaseous contaminant can be adhered on parallel-plate, can pollute subsequent sampling and cleaning is inconvenient.2nd, adopt
Sample process does not have automatic collecting device, it is difficult to meet 24 hours observation requirementses of Meteorological Field.
The content of the invention
Present invention solves the technical problem that：For above-mentioned deficiency, the defect of prior art is overcome, it is an object of the invention to provide
A kind of rare earth modified nano coated glass plate automatically cleaning gas collector, the device in collection and confinement of gases have it is semicontinuous, from
The advantages such as spatter property.
Technical scheme：A kind of rare earth modified nano coated glass plate automatically cleaning gas collector, including entering
Trachea, gas collector, escape pipe, peristaltic pump, collection flow container, feed pipe, liquid feedstock peristaltic pump, collection flow container, discharge nozzle
With liquid discharging peristaltic pump；
Wherein, gas collector is made up of the sealing frame between two parallel-plates and two parallel-plates, in two blocks of parallel-plates
Upper level is provided with symmetrical collection liquid pipeline, is provided with symmetrical collection liquid pipeline in two pieces of parallel-plate lower horizontals, in collection
Between liquid pipe road and collection liquid pipeline, liquid distribution device, rare earth modified nano coated glass plate and liquid are provided with from top to bottom
Collection device；Sealing frame is located at two pieces of parallel-plate avris, and upper center is provided with opening, is gas outlet, and correspondence is provided with the middle part of lower end
Air inlet；
Wherein, air inlet pipe is connected with the air inlet of gas collector, and escape pipe is connected with the gas outlet of gas collector, compacted
Dynamic pump is connected with escape pipe；
Collection flow container be connected with the collection liquid pipeline on gas collector by feed pipe, liquid feedstock peristaltic pump be located at into
On expects pipe；Collect flow container to be connected with the collection liquid pipeline on gas collector by discharge nozzle, liquid discharging peristaltic pump is located at
On discharge nozzle；
Wherein, rare earth modified nano coated glass plate is to deposit or coat one layer on the glass substrate containing rare earth element
Immersion coating, wherein, rare earth element includes lutecium, europium, samarium and lanthanum.
Preferably, aerosol collection device is provided between gas collector and peristaltic pump, atmospheric aerosol is carried out
Collect.
Preferably, the liquid in the collection flow container is hydrogen peroxide, concentration is 0.1-5 mM/l.
Preferably, the rare earth modified nano coated glass plate middle rare earth coating is the titanium deoxid film of lutecium doping.
More preferably, the thickness of the titanium deoxid film of the lutecium doping is 30-500nm.
Beneficial effect：The rare earth modified nano coated glass plate automatically cleaning gas collector that the present invention is provided, is to utilize
The hydrophilic and self-cleaning property of rare earth modified nano coating, in gatherer process, enables to liquid along parallel-plate uniform flow
It is dynamic, water membrane is produced, so as to the gaseous contaminant in sample stream is absorbed using diffusion；There is the coating catalysis to make simultaneously
With the gaseous contaminant for enabling to macromole is quickly dissolved in collection liquid, while can be by gas SO2Quick catalysis are aoxidized
Into SO3, so as to be dissolved in rapidly collection liquid, reach quick and complete collection or separate the effect of gaseous contaminant.
Meanwhile, by controlling collection gas sample stream flow and absorbing fluid flow, with semicontinuous, the spy such as precise control
Point.
Therefore, the rare earth modified nano coated glass plate automatically cleaning gas collector that the present invention is provided has operation letter
The features such as single, collection and confinement of gases efficiency high, meteorological and environmental industry is can be widely applied to the monitoring of gaseous contaminant and research neck
Domain, and need efficiently to be rapidly separated the occasion of gaseous contaminant and particulate matter component.
Description of the drawings
Fig. 1 is the structural representation of rare earth modified nano coated glass plate automatically cleaning gas collector of the present invention.
In figure：1st, air inlet pipe；2nd, gas collector；3rd, escape pipe；4th, peristaltic pump；5th, gather flow container；6th, feed pipe；7th, liquid
Body feeds peristaltic pump；8th, collect flow container；9th, discharge nozzle；10th, liquid discharging peristaltic pump.
Fig. 2 is gas collector in a kind of rare earth modified nano coated glass plate automatically cleaning gas collector of the invention
Structural representation.
In figure：21st, parallel-plate；22nd, sealing frame；23rd, collection liquid pipeline；24th, collection liquid pipeline；25th, liquid distribution device；
26th, rare earth modified nano coated glass plate.
Fig. 3 is parallel-plate structure schematic diagram in gas collector.
In figure：21st, parallel-plate；22nd, sealing frame；23rd, collection liquid pipeline；24th, collection liquid pipeline；25th, liquid distribution dress
Put；26th, rare earth modified nano coated glass plate；27th, fluid collection device；28th, gas outlet；29th, air inlet.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, but
It should be appreciated that these descriptions are simply to further illustrate the features and advantages of the present invention, rather than to the claims in the present invention
Limit.
Embodiment 1：
A kind of rare earth modified nano coated glass plate automatically cleaning gas collector, as shown in figure 1, device includes air inlet pipe
1st, gas collector 2, escape pipe 3, peristaltic pump 4, collection flow container 5, feed pipe 6, liquid feedstock peristaltic pump 7, collect flow container 8, go out
Expects pipe 9 and liquid discharging peristaltic pump 10；
Wherein, gas collector 2 is made up of the sealing frame 22 between two parallel-plates 21 and two parallel-plates, flat at two pieces
21 upper level of andante is provided with symmetrical collection liquid pipeline 23, is provided with symmetrical collection liquid pipe in two pieces of 21 lower horizontals of parallel-plate
Road 24, between collection liquid pipeline 23 and collection liquid pipeline 24, is provided with liquid distribution device 25, rare earth modified nano from top to bottom
Coated glass plate 26 and fluid collection device 27；Sealing frame 22 is located at two pieces of 21 avris of parallel-plate, and upper center is provided with opening, is
Gas outlet 28, is provided with corresponding air inlet 29 in the middle part of lower end；
Air inlet pipe 1 is connected with the air inlet 29 of gas collector 2,28 phase of gas outlet of escape pipe 3 and gas collector 2
Even, peristaltic pump 4 is connected with escape pipe 3；
Collection flow container 5 is connected with the collection liquid pipeline 23 on gas collector 2 by feed pipe 6, liquid feedstock peristaltic pump 7
On feed pipe 6；Collect flow container 8 to be connected with the collection liquid pipeline 24 on gas collector 2 by discharge nozzle 9, liquid discharge
Material peristaltic pump 1- is on discharge nozzle 9；
Wherein, liquid distribution device 25 is equal zigzag, and collection liquid can be caused uniformly to overflow dispersion；In collection flow container 5
Hydrogen peroxide concentration is 0.5 mM/l；
Wherein, the preparation of rare earth modified nano coated glass plate 26, is first to use hydrofluoric acid clean glass substrate, in chemical gas
In phase cvd reactive chamber, noble gases or nitrogen cleaning are passed through, N is then used2It is loaded into the titanium tetrachloride and chelate of heating（Lu
(TMHD)3）Into reative cell, lead to oxygen, and heat so that rare earth modified coating is deposited in glass matrix, cooling taking-up is
Can, the titania-doped film of nano-scale rare earth lutecium is obtained in that, film thickness is 30-500 nanometers, is 200nm in the present embodiment.
When using this device, gas sample stream flow is adjusted by peristaltic pump 4, when peristaltic pump 4 is opened, gaseous sample is from entering
Trachea 1 is entered in gas collector 2 by the air inlet 29 of gas collector 2,
Liquid feedstock peristaltic pump 7 is opened, and the liquid in collection tank 5 is pumped in gas collector 2, by gas collector
Collection liquid pipeline 23 in 2 is flowed into liquid distribution device 25, collection liquid is uniformly overflowed by liquid distribution device 25 and divides
Dissipate, one layer of liquid film is formed on rare earth modified nano coated glass plate 26, as gaseous contaminant diffusion velocity is very fast, is easily arrived
Up to liquid film, and it is dissolved in liquid film, so as to realize the separation of gaseous contaminant；Part macromole organic gas pollutant, into liquid
Film is due to being attached on glass with certain viscosity, because rare earth modified coating has catalytic, can be by these residues
Oxidation, so as to reach the effect of self-cleaning glass piece.The liquid for collecting gaseous contaminant is come together in liquid by action of gravity
Collection device 27, in the present embodiment, fluid collection device 27 is flat funnel-shaped structure, is connected with collection liquid pipeline 24, by liquid
Body discharging peristaltic pump 10, collection liquid is pumped in collection flow container 8, for subsequent analysis.
The rare earth modified nano coated glass plate automatically cleaning gas collector provided using the present invention carries out gas collecting,
Separation gas-solid pollutant equipment with common coating determines GAS ABSORPTION rate, as a result as shown in table 1 as matched group：
Table 1 contrasts different coating GAS ABSORPTION rate
It follows that the more existing skill of rare earth modified nano coated glass plate automatically cleaning gas collector that the present invention is provided
Art has ideal GAS ABSORPTION rate, wherein when gas flow is 5L/min, reaching 100% to the absorbance of gas, being one
Plant ideal gas collecting device.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
Claims (5)
1. a kind of rare earth modified nano coated glass plate automatically cleaning gas collector, it is characterised in that including air inlet pipe（1）、
Gas collector（2）, escape pipe（3）, peristaltic pump（4）, collection flow container（5）, feed pipe（6）, liquid feedstock peristaltic pump（7）, receive
Liquid collecting tank（8）, discharge nozzle（9）With liquid discharging peristaltic pump（10）；
Wherein, gas collector（2）By two parallel-plates（21）And the sealing frame between two parallel-plates（22）Constitute, at two pieces
Parallel-plate（21）Upper level is provided with symmetrical collection liquid pipeline（23）, in two blocks of parallel-plates（21）Lower horizontal is provided with symmetrical
Collection liquid pipeline（24）, in collection liquid pipeline（23）With collection liquid pipeline（24）Between, liquid distribution device is provided with from top to bottom
（25）, rare earth modified nano coated glass plate（26）And fluid collection device（27）；Sealing frame（22）Positioned at two blocks of parallel-plates
（21）Avris, upper center are provided with opening, are gas outlet（28）, in the middle part of lower end, it is provided with corresponding air inlet（29）；
Wherein, air inlet pipe（1）With gas collector（2）Air inlet（29）It is connected, escape pipe（3）With gas collector（2）'s
Gas outlet（28）It is connected, peristaltic pump（4）With escape pipe（3）It is connected；
Collection flow container（5）By feed pipe（6）With gas collector（2）On collection liquid pipeline（23）It is connected, liquid feedstock is compacted
Dynamic pump（7）Located at feed pipe（6）On；Collect flow container（8）By discharge nozzle（9）With gas collector（2）On collection liquid pipe
Road（24）It is connected, liquid discharging peristaltic pump（10）Located at discharge nozzle（9）On；
Wherein, rare earth modified nano coated glass plate（26）It is to deposit or coat one layer on the glass substrate containing rare earth element
Immersion coating, wherein, rare earth element is lutecium, europium, samarium or lanthanum.
2. rare earth modified nano coated glass plate automatically cleaning gas collector according to claim 1, it is characterised in that：
In gas collector（2）And peristaltic pump（4）Between be provided with aerosol collection device, carry out the collection of atmospheric aerosol.
3. rare earth modified nano coated glass plate automatically cleaning gas collector according to claim 1, it is characterised in that：
The collection flow container（5）Interior liquid is hydrogen peroxide, and concentration is 0.1-5 mM/l.
4. rare earth modified nano coated glass plate automatically cleaning gas collector according to claim 1, it is characterised in that：
The rare earth modified nano coated glass plate（26）Middle rare earth modified Nano coating is the titanium deoxid film of lutecium doping.
5. rare earth modified nano coated glass plate automatically cleaning gas collector according to claim 4, it is characterised in that：
The thickness of the titanium deoxid film of the lutecium doping is 30-500nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510080851.6A CN104697823B (en) | 2015-02-15 | 2015-02-15 | Rare earth modified nano coating glass plate self-cleaning gas collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510080851.6A CN104697823B (en) | 2015-02-15 | 2015-02-15 | Rare earth modified nano coating glass plate self-cleaning gas collecting device |
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| Publication Number | Publication Date |
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| CN104697823A CN104697823A (en) | 2015-06-10 |
| CN104697823B true CN104697823B (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510080851.6A Active CN104697823B (en) | 2015-02-15 | 2015-02-15 | Rare earth modified nano coating glass plate self-cleaning gas collecting device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388034B (en) * | 2015-12-30 | 2018-06-08 | 东旭科技集团有限公司 | The sampler of substrate particulate matter and the sampling method of glass substrate particulate matter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5783756A (en) * | 1995-12-08 | 1998-07-21 | New York University | Portable sampler for volatile aerosols |
| CN1818610A (en) * | 2005-02-03 | 2006-08-16 | 气体产品与化学公司 | System and method for measurement and/or analysis of particles in gas stream |
| CN102269664A (en) * | 2011-06-14 | 2011-12-07 | 北京大学 | Wet type parallel plate gas diffusion and collection pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6890372B2 (en) * | 2003-08-27 | 2005-05-10 | Dionex Corporation | Denuder assembly for collection and removal of soluble atmospheric gases |
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2015
- 2015-02-15 CN CN201510080851.6A patent/CN104697823B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5783756A (en) * | 1995-12-08 | 1998-07-21 | New York University | Portable sampler for volatile aerosols |
| CN1818610A (en) * | 2005-02-03 | 2006-08-16 | 气体产品与化学公司 | System and method for measurement and/or analysis of particles in gas stream |
| CN102269664A (en) * | 2011-06-14 | 2011-12-07 | 北京大学 | Wet type parallel plate gas diffusion and collection pipe |
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