CN103196912A - Microcosmic characterization method for smoke aerosol particles in cellosilk surface accumulation process and capturing and shooting device - Google Patents
Microcosmic characterization method for smoke aerosol particles in cellosilk surface accumulation process and capturing and shooting device Download PDFInfo
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- CN103196912A CN103196912A CN2013101210021A CN201310121002A CN103196912A CN 103196912 A CN103196912 A CN 103196912A CN 2013101210021 A CN2013101210021 A CN 2013101210021A CN 201310121002 A CN201310121002 A CN 201310121002A CN 103196912 A CN103196912 A CN 103196912A
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- flue gas
- microcosmic
- aerosol particle
- cellosilk
- smoke
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Abstract
The invention discloses a microcosmic characterization method for smoke aerosol particles in a cellosilk surface accumulation process. The microcosmic characterization method is characterized in that a microscope is used for performing image acquisition on cellosilk arranged in a smoke channel in an aerosol particle capturing process and then performing image processing, so that the microcosmic process that the aerosol particles are accumulated on the surface of the cellosilk is obtained. A used capturing and shooting device comprises the smoke channel, an observation window formed on the channel, and the microscope with a charge coupled device (CCD) camera, wherein a bracket for clamping the cellosilk is arranged in the channel; and one end of the smoke channel is connected with a smoke collection port, and the other end of the smoke channel is sequentially connected with a filter, a flowmeter and a vacuum pump. By using a smoke particle cellosilk adsorption microcosmic observation device, due to the image acquisition and the image processing, the microcosmic characterization that the smoke aerosol particles are continuously accumulated on the surface of the cellosilk is realized, so that the deep learning of the cellosilk capturing is facilitated; and an evaluation measure is supplied for the novel fiber development.
Description
Technical field
The invention belongs to flue gas aerosol microexamination technical field, be specifically related to the aerosol particle thing at microcosmic characterizing method and the special-purpose capture filming apparatus thereof of filament surface accumulation.
Background technology
In daily life, people can inevitably touch various flue gas aerosols, the emission that burning produces as combustible substances such as vehicle exhaust, plant gas, culinary art flue gas, cigarette smokes.At present, the particle pollution problem is serious day by day, and wherein the PM10 particle easily is inhaled into the human respiratory tract, and the PM2.5 particle then can further enter human body, has become one of key factor that influences city dweller's health
Fiber filter is one of effective means of effectively controlling the flue gas aerosol environmental pollution, and various forms of fibre precipitators are applied in a lot of fields.Fiber absorption is the main mode of fiber medium filtration of material flue gas particles, how to improve fiber adsorption efficiency and ultimate fibre adsorbance, is effectively to improve smoke filtration efficient and improve the filtrator key in serviceable life.
There is research to point out that particle will produce considerable influence to follow-up granule capturing in enrichment process and the form of fiber surface, obtain the formed different accumulation forms of particle different phase when being captured by monofilament, these results help to understand the fiber filter process.For flue gas aerosol particle such as gasoloids such as cooking fume, cigarette smoke, because particle viscosity is stronger, it is yielding that particle is enriched in when particle interacts behind the fiber surface shape, obtain different particles constantly at the enrichment state of fiber surface, to play an important role for the microscopic mechanism of deeply understanding fiber capture flue gas aerosol particle, how to improve the fiber adsorption efficiency or the development of new fibrous material has important directive function for research, and lack effective characterizing method at present in this respect.
Summary of the invention
Purpose of the present invention just is being based on above-mentioned prior art situation and is proposing a kind of flue gas aerosol particle at the microcosmic characterizing method of filament surface accumulation.This method is by means of a cover flue gas particle fiber absorption microcosmic observation device of exploitation, utilization by image acquisition and image processing techniques, can realize that the flue gas aerosol particle characterizes at the microcosmic of the continuous accumulation in filament surface, thereby help the deep understanding to the fiber capture, the while also provides evaluation means for the exploitation of tencel.
The objective of the invention is to be achieved through the following technical solutions: a kind of flue gas aerosol particle is at the microcosmic characterizing method of filament surface accumulation, be to utilize optical microscope that the filament capture aerosol particle thing process that is arranged in the exhaust gases passes is carried out image acquisition, carry out image then and handle, thereby obtain the flue gas aerosol particle at the microprocess of filament surface accumulative total.
Described image is handled and is comprised optical filtering processing, pixels statistics and image binaryzation processing.
Be applicable to that the flue gas aerosol particle is at the capture filming apparatus of filament surface accumulation, comprise exhaust gases passes, be opened in the observation window on the exhaust gases passes and be arranged on the microscope that has ccd video camera of observation window top, in being right against the exhaust gases passes of observation window, be provided with clamping filametntary support is arranged, one end of exhaust gases passes is connected with tubaeform flue gas and collects mouth, and the other end is connected with filtrator, flowmeter and vacuum pump in turn.
Described exhaust gases passes leading portion is connected to tubaeform flue gas and collects mouth, is used for collecting flue gas aerosol.
The cross section of flue is rectangle, and rectangular configuration is conducive to channel interior and forms the laminar region, is beneficial to the stable of flue gas concentration, also is convenient to arrange in passage that fibrous framework and top arrange observation window simultaneously.
It is car coat type that clamping has filametntary support, place the back and adopt the cover glass sealing, filametntary fiber number can be changed as required, and flue gas aerosol particle concentration and airshed all can be regulated as required, studies to adapt under the different condition microprocess to trickle adsorption particle.
The invention has the advantages that: by placing filament in the smoke filtration channel interior of having set up, feed the flue gas aerosol of finite concentration, speed, the microscope that ccd video camera is disposed in utilization carries out image acquisition to fiber capture particulate fraction, carry out image binaryzation then and handle, thereby obtain flue gas aerosol attitude particle at the microprocess of filament surface accumulation.The present invention is by means of a cover flue gas particle fiber absorption microcosmic observation device of exploitation, utilization by image acquisition and image processing techniques, realized that the flue gas aerosol particle characterizes at the microcosmic of the continuous accumulation in filament surface, thereby help the deep understanding to the fiber capture, the while also provides evaluation means for the exploitation of tencel.
Description of drawings
Fig. 1 is capture filming apparatus structural representation of the present invention
Fig. 2 is enlarged drawing for the flue gas collecting terminal
Fig. 3 places filament place enlarged drawing for pipeline
Fig. 4 is filametntary support for clamping has
Label among Fig. 1-4: 1. flue gas is collected mouth; 2. exhaust gases passes; 3. filament is placed observation window; 4. filtrator; 5. flowmeter; 6. vacuum pump; 7. optical microscope; 8.CCD video camera; 9. computing machine, 10. clamping has filametntary support.
Fig. 5 monofilament captures the particle picture
Fig. 6 monofilament captures the particle optical filtering and handles picture
Fig. 7 monofilament captures the particle binary image
Fig. 8 particle is in the coverage rate and capture time relationship on different size monofilament surface
Among Fig. 5-8: t
0Be the blank picture constantly of trap particulate matter not, t
1To t
9The gained filament trap particulate matter picture of identical time of every interval of doing
Embodiment
The present invention is described further below in conjunction with accompanying drawing:
Shown in Fig. 1-4: capture filming apparatus of the present invention, the microscope that has ccd video camera of surveying window 3 and being arranged on this window top is placed in the sight that comprises exhaust gases passes 2, is opened on the exhaust gases passes, in being right against the exhaust gases passes of observation window, be provided with clamping filametntary support 10 is arranged, one end of exhaust gases passes 2 is connected with tubaeform flue gas and collects mouth 1, and the other end is connected with filtrator 4, flowmeter 5 and vacuum pump 6 in turn.
Two segment pipes that exhaust gases passes 2 adopts flange to connect, observation window is positioned at the flange rear end, is convenient to pipeline and takes the back cleaning apart.
Show among the figure that the elbow that tubaeform flue gas is collected mouthful by one 90 ° is connected with exhaust gases passes, but be not defined as 90 ° of elbows, elbow only is the convenient usefulness of arranging among the figure.
Groundwork process of the present invention is as follows:
The flue gas aerosol particle is at the microcosmic characterizing method of filament surface accumulation
The first step: obtain the picture that filament captures the flue gas aerosol particle
As shown in Figure 1, for the pipeline that connects, there is filametntary support 10 to put into passage from window clamping, opening vacuum pump 6 aspirates, bond quality flowmeter 5 is regulated suitable flow, the window 3 usefulness cover glasses that to place support then seal, adjusting microscope 7 finds the observation site on the filament, be adjusted to required enlargement ratio, collect mouthful 1 a placement flue gas aerosol sources of particles at flue gas, via ccd video camera 8 pictures taken, the picture of clapping is deposited to computing machine 9, Figure 5 shows that the picture group sheet that selected site on the filament is taken, and first in picture is the blank sample, the identical time of later every interval takes once same site, and external condition remains unchanged during shooting.
Second step: the method for employing image binaryzation characterizes the accumulation of flue gas aerosol particle
The a series of pictures of gained being advanced to filter handle, mainly is to remove the noise effect that background color produces after to image binaryzation, and the gray scale picture after the processing that so just can obtain earlier filtering is as Fig. 6; Selected by to first blank picture threshold value determined the corresponding threshold value of this a series of pictures, under selected threshold value picture carried out binary conversion treatment, obtains the flue gas aerosol particle image of accumulation on filament in time, as Fig. 7; By adding up the shared pixel of single fiber silk on the shared pixel of stain on every width of cloth picture and the picture, obtain the area that unit area filament surface particles thing covers, can quantitatively draw particle at monofilament surface coverage rate curve map (as shown in Figure 8).
Claims (6)
1. a flue gas aerosol particle is at the microcosmic characterizing method of filament surface accumulation, it is characterized in that: be to utilize optical microscope that the filament capture aerosol particle thing process that is arranged in the exhaust gases passes is carried out image acquisition, carry out image then and handle, thereby obtain the flue gas aerosol particle at the microprocess of filament surface accumulative total.
2. flue gas aerosol particle according to claim 1 is characterized in that at the microcosmic characterizing method of filament surface accumulation: described image is handled and is comprised optical filtering processing, pixels statistics and image binaryzation processing.
3. one kind is used for the flue gas aerosol particle at the capture filming apparatus of filament surface accumulation, it is characterized in that: comprise exhaust gases passes, be opened in the observation window on the exhaust gases passes and be arranged on the microscope that has ccd video camera of observation window top, in being right against the exhaust gases passes of observation window, be provided with clamping filametntary support is arranged, one end of exhaust gases passes is connected with tubaeform flue gas and collects mouth, and the other end is connected with filtrator, flowmeter and vacuum pump in turn.
4. according to claim 3 for the capture filming apparatus of flue gas aerosol particle in filament surface accumulation, it is characterized in that: the exhaust gases passes leading portion is that tubaeform flue gas is collected mouth.
5. according to claim 3 for the capture filming apparatus of flue gas aerosol particle in filament surface accumulation, it is characterized in that: the cross section of flue is rectangle.
6. according to claim 3 it is characterized in that: it is car coat type that clamping has filametntary support for the capture filming apparatus of flue gas aerosol particle in filament surface accumulation, places the back and adopts the cover glass sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013101210021A CN103196912A (en) | 2013-04-09 | 2013-04-09 | Microcosmic characterization method for smoke aerosol particles in cellosilk surface accumulation process and capturing and shooting device |
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| CN2013101210021A CN103196912A (en) | 2013-04-09 | 2013-04-09 | Microcosmic characterization method for smoke aerosol particles in cellosilk surface accumulation process and capturing and shooting device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016095297A1 (en) * | 2014-12-19 | 2016-06-23 | 昂纳自动化技术（深圳）有限公司 | Electronic cigarette smoke concentration detection system |
| CN106950159A (en) * | 2016-01-06 | 2017-07-14 | 华北电力大学（保定） | A kind of method and system for detecting mask filtration efficiency |
| CN107533011A (en) * | 2015-04-01 | 2018-01-02 | Spx流动技术丹麦有限公司 | For monitoring the method and system of the nozzle in spray drying or spray cooling chamber |
| CN110559738A (en) * | 2019-08-29 | 2019-12-13 | 华中科技大学 | Visualization device and method for particle deposition process in filter |
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| CN110559738A (en) * | 2019-08-29 | 2019-12-13 | 华中科技大学 | Visualization device and method for particle deposition process in filter |
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Application publication date: 20130710 |