CN108732080A - Particle size separator - Google Patents
Particle size separator Download PDFInfo
- Publication number
- CN108732080A CN108732080A CN201810374162.XA CN201810374162A CN108732080A CN 108732080 A CN108732080 A CN 108732080A CN 201810374162 A CN201810374162 A CN 201810374162A CN 108732080 A CN108732080 A CN 108732080A
- Authority
- CN
- China
- Prior art keywords
- mouth
- particle size
- separation voltage
- ventilative
- external tapping
- Prior art date
- 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.)
- Granted
Links
- 239000002245 particle Substances 0.000 title claims abstract description 54
- 238000000926 separation method Methods 0.000 claims abstract description 48
- 230000006837 decompression Effects 0.000 claims abstract description 15
- 238000010894 electron beam technology Methods 0.000 claims abstract description 9
- 238000010079 rubber tapping Methods 0.000 claims description 37
- 239000007789 gas Substances 0.000 claims description 23
- 238000005070 sampling Methods 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000001307 helium Substances 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000013618 particulate matter Substances 0.000 abstract description 19
- 230000005684 electric field Effects 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N2015/1028—Sorting particles
Landscapes
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The invention discloses a kind of particle size separators, including circular orbit chamber and the electron beam generator being installed on circular orbit chamber, separation voltage mouth, ventilative decompression mouth and sampler, the separation voltage mouth setting is multiple, and separation voltage mouth is connect by conducting wire with power-supply controller of electric.The present invention is carried out separation and the statistics of different sized particles by electric field action after being charged using particulate matter, it can ensure that particle is totally separated and counts using circular orbit chamber, testing result accuracy is high, and the inventive structure is reasonable, it is easy to operate, it can be used for the separation statistics of various gas fine particulates.
Description
Technical field
Varying particle size separation of particles may be implemented the invention belongs to particulate separation field, especially one kind and counts
Particle size separator.
Background technology
Attention with people to atmosphere pollution, vehicle exhaust standard is continuously improved, for the main limitation of vehicle exhaust
Parameter is nitrogen oxides and particulate matter, and for diesel engine, the emission control and detection of particulate matter are even more important.
It is tens microns of carbonaceous particles for arriving several micron-scales of zero that particulate matter, which is mainly size, in vehicle exhaust, at this stage
Particle detection method includes mainly filter type smokemeter and opacity smoke meter, both test methods are both for all rulers
The gross mass of very little particulate matter measures, and the ratio shared by different sized particles objects cannot be distinguished.And in vehicle exhaust
Particle for, the generation processes of different sized particles objects and mechanism of production are different, if it is possible to measure under different operating modes, each ruler
Ratio shared by very little particle can deeper into the analysis vehicle main process that flue gas generates under each operating mode and mechanism, favorably
The reduction and control of particulate matter in vehicle exhaust.
Invention content
The technical problem to be solved in the invention is to provide that a kind of delicate structure, manipulation is easy, it is small different to can be achieved
The particle size separator that particle size is detached and counted.
To solve the above problems, the technical solution used in the present invention is：
A kind of particle size separator, including circular orbit chamber and the electron beam that is installed on circular orbit chamber occur
Device, separation voltage mouth, ventilative decompression mouth and sampler, the separation voltage mouth setting is multiple, separation voltage mouth by conducting wire with
Power-supply controller of electric connects.
Further, the circular orbit chamber is hollow loop configuration, is provided on cavity lateral wall and is passed through work
The air inlet of gas, the installing port for installing electron beam generator and installation separation voltage mouth and the multiple external of decompression mouth of breathing freely
Mouthful, sampler connector is set on the tube wall of air inlet, and the air inlet, installing port, external tapping are in the direction of the clock successively
Setting.
Further, the external tapping setting quantity is 4-7, and all external tapping spacing are uniformly arranged, outside
Interface and circular orbit chamber cavity lateral wall are in a certain angle, and the opening direction of angle is counterclockwise；The air inlet with
Circular orbit chamber cavity lateral wall is in a certain angle, and the opening direction of angle is counterclockwise；The separation voltage mouth and thoroughly
Gas is depressured mouth and is mounted on the external tapping of circular orbit chamber in the direction of the clock respectively.
Further, the separation voltage mouth is made of connecting tube and anode connection sheet, and anode connection sheet is connected by screw thread
It is connected to connecting tube one end, the connecting tube other end is threadingly attached on the external tapping of circular passage.
Further, for the ventilative decompression mouth by connecting tube of breathing freely, breathable films and hollow tabletting composition, hollow tabletting are logical
It crosses threaded connection and breathable films is pressed on ventilative connecting tube one end, the ventilative connecting tube other end is threadingly attached to circular passage
External tapping on.
Further, the sampler is made of sebific duct and sampling head, is connected by sampling head and sampler connector activity
It connects.
The working gas is the smaller helium or nitrogen of polarity.
It is using advantageous effect caused by above-mentioned technical proposal：
The present invention is carried out separation and the statistics of different sized particles by electric field action after being charged using particulate matter, using annular
Rail cavity can ensure that particle is totally separated and is counted, and testing result accuracy is high, and the inventive structure is reasonable, easy to operate,
It can be used for the separation statistics of various gas fine particulates.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2A, Fig. 2 B are section view, the side structure schematic view of circular orbit chamber of the present invention respectively；
Fig. 3 A, Fig. 3 B are section view, the side structure schematic view of separation voltage mouth of the present invention respectively；
Fig. 4 A, Fig. 4 B are section view, the side structure schematic view of the ventilative decompression mouth of the present invention respectively；
Fig. 5 is sampler structure schematic diagram of the present invention；
Wherein：1, electron beam generator, 2, circular orbit chamber, 3, separation voltage mouth, 4, ventilative decompression mouth, 5, power supply control
Device, 6, sampler, 2-1, installing port, 2-2, loop configuration, 2-3, external tapping, 2-4, air inlet, 2-5, sampler connector, 3-
1, connecting tube, 3-2, anode connection sheet, 4-1, ventilative connecting tube, 4-2, breathable films, 4-3, hollow tabletting, 6-1, sebific duct, 6-
2, sampling head.
Specific implementation mode
Invention is described in further detail below in conjunction with the accompanying drawings：
The present invention is used for the detection of particulate matter in vehicle exhaust, and the present invention is based on the suction-operateds of electronics, make vehicle exhaust
In particulate matter electrification, since large-size particulate matter quality is also larger, the electric field action that can be subject to by charged particle thing
The difference of power realizes the separation of different sized particles objects and counted, for deeper into analysis vehicle under each operating mode cigarette
The main process and mechanism that gas generates provide foundation.The present invention may be used also in addition to it can be detected to the particulate matter of vehicle exhaust
Other gases containing particulate matter are carried out with the separation statistic mixed-state of particulate matter.
As shown in Figure 1, the present invention include circular orbit chamber 2 and the electron beam generator being installed on circular orbit chamber 1,
Separation voltage mouth 3, ventilative decompression mouth 4 and sampler 6, the separation voltage mouth setting is multiple, separation voltage mouth by conducting wire with
Power-supply controller of electric 5 connects.
As shown in Figure 2 A and 2B, the circular orbit chamber 2 is hollow loop configuration 2-2, is arranged on cavity lateral wall
Have and is passed through the air inlet 2-4 of working gas, the installing port 2-1 for installing electron beam generator and installation separation voltage mouth and breathes freely
Multiple external tapping 2-3 of mouth are depressured, sampler connector 2-5, the air inlet, installation are set on the tube wall of air inlet 2-4
Mouth, external tapping are set gradually in the direction of the clock；The external tapping 2-3 settings quantity is 4-7, and between all external tappings
Away from being uniformly arranged, external tapping and circular orbit chamber cavity lateral wall are in a certain angle, and the opening direction of angle is counterclockwise；
The air inlet and circular orbit chamber cavity lateral wall are in a certain angle, and the opening direction of angle is counterclockwise；Described point
Ionization voltage mouth and ventilative decompression mouth are mounted on the external tapping of circular orbit chamber in the direction of the clock respectively.
As shown in figs.3 a and 3b, the separation voltage mouth is made of connecting tube 3-1 and anode connection sheet 3-2, anode connection
Piece 3-2 is threadingly attached to connecting tube one end, and the connecting tube other end is threadingly attached on the external tapping of circular passage.
As illustrated in figures 4 a and 4b, the ventilative decompression mouth is by ventilative connecting tube 4-1, breathable films 4-2 and hollow tabletting 4-3
Composition, hollow tabletting is connected through a screw thread is pressed on ventilative connecting tube one end by breathable films, and the ventilative connecting tube other end passes through spiral shell
Line is connected on the external tapping of circular passage.
As shown in figure 5, the sampler is made of sebific duct 6-1 and sampling head 6-2, pass through sampling head and sampler connector
Flexible connection.
Workflow
The present invention is contained by sampler absorption first when being detected to the gas for containing particulate matter (Nano grade)
The gas of particulate matter, and mounted on circular orbit chamber sampler connector on, then pass to working gas, in order to reduce to
The influence of grain quality testing measured data, using the smaller working gas of polarity, such as helium, nitrogen.
In the case where being passed through working gas, the sebific duct of sampler is pressed so that the gas containing particulate matter passes through sampling
Head enters circular passage, and under working gas effect, particulate matter is as gas is along channel clockwise movement, in the fortune of particulate matter
On dynamic path, electronic generator launching electronics.The particle of Nano grade has stronger polarity, understands adhered electrons on particulate matter,
To form charged particle.A large amount of charged particles and electronics pass through separation successively together along circular passage clockwise movement
Voltage mouth.
The anode connection sheet of separation voltage mouth is conductive sheet, and power-supply controller of electric, power-supply controller of electric pair are connected to by conducting wire
The voltage that each separation voltage mouth applies is different, as shown in Figure 1, one embodiment of the present of invention includes 6 external tappings, by up time
Needle direction be named as successively primary external tapping, two level external tapping, three-level external tapping, level Four external tapping, Pyatyi external tapping, six grades it is outer
Interface, primary external tapping to Pyatyi external tapping correspond to 5 separation voltage mouths of installation, the voltage of 5 separation voltage mouths (up time successively
Needle) it increases.The separation voltage mouth (primary external tapping) of low-voltage is first passed around containing granular gas, mainly quality is most in the position
Small electronics measures gained electric current by electric field action, into separation voltage mouth and by power-supply controller of electric, and charged particle is due to matter
Measure larger, the separation voltage mouth electric field force connected at primary external tapping is not enough to capture big quality charged particle, band point particle warp
When crossing two level external tapping, the smaller charged particle of size can be collected by electric field and measure charged particle by power-supply controller of electric and be formed
Electric current, particle after each separation voltage mouth, detached successively according to granular mass size, and passes through each separation electricity
Current calculation on pressure mouth obtains the amounts of particles of separation voltage mouth collection.The particle not echoed by electronics is in working gas
Under drive, enter cycle from new by ventilative decompression mouth (being installed on six grades of external tappings).
The effect of ventilative decompression mouth is the air pressure reduced in circulating line, and working gas is after ventilative decompression mouth, gas
It is discharged by breathable films, new working gas enters from air inlet and moved along circulating line with particle.
By continuous cyclic process, when each two level external tapping to Pyatyi external tapping is not having particle deposition, that is,
Corresponding separation voltage mouth there is no when electric current, complete, and difference can be obtained according to each separation voltage mouth total current by particle separation
Sized particles quantity.
Operation principle
Particulate samples are mainly blown into circular orbit chamber by the present invention using working gas, and then use electron beam generator
Launching electronics, electrons combine from different sized particles and form charged particle.Charged particle is moved along circular orbit path, by
In having sequentially added gradual increased voltage value on separation voltage mouth.Since the size of charged particle determines the big of inertia
Small, small size charged particle accumulates on relatively low separation voltage mouth, and remaining larger mass particle can be successively in big separation electricity
It is accumulated on pressure mouth, after charged particle contacts anode connection sheet, electric current can be formed along circuit, pass through the measurement of electric current, Ke Yitong
It counts different separation voltage mouths and collects numbers of particles, to which different sized particles are detached and be counted.
Claims (9)
1. a kind of particle size separator, it is characterised in that：Including circular orbit chamber (2) and it is installed on circular orbit chamber
(2) electron beam generator (1), separation voltage mouth (3), ventilative decompression mouth (4) on and sampler (6), the separation voltage mouth
(3) setting is multiple, and separation voltage mouth (3) is connect by conducting wire with power-supply controller of electric (5).
2. particle size separator according to claim 1, it is characterised in that：The circular orbit chamber is hollow ring
Shape structure (2-2) is provided on cavity lateral wall and is passed through the air inlet (2-4) of working gas, installs electron beam generator
Multiple external tappings (2-3) of installing port (2-1) and installation separation voltage mouth (3) and ventilative decompression mouth (4), in air inlet (2-
4) sampler connector (2-5) is set on tube wall, and the air inlet (2-4), installing port (2-1), external tapping (2-3) press up time
Needle direction is set gradually.
3. particle size separator according to claim 2, it is characterised in that：Quantity is arranged in the external tapping (2-3)
It it is 4-7, and all external tapping (2-3) spacing are uniformly arranged, external tapping (2-3) is in circular orbit chamber cavity lateral wall
The opening direction of certain angle, angle is counterclockwise.
4. particle size separator according to claim 3, it is characterised in that：The air inlet (2-4) and circular rails
Road chamber cavity lateral wall is in a certain angle, and the opening direction of angle is counterclockwise.
5. particle size separator according to claim 4, it is characterised in that：The separation voltage mouth (3) and ventilative
Mouth (4) is depressured to be mounted on the external tapping (2-3) of circular orbit chamber in the direction of the clock respectively.
6. according to claim 1-5 any one of them particle size separators, it is characterised in that：The separation voltage mouth by
Connecting tube (3-1) and anode connection sheet (3-2) composition, anode connection sheet (3-2) are threadingly attached to connecting tube (3-1) one
End, connecting tube (3-1) other end are threadingly attached on the external tapping (2-3) of circular passage.
7. particle size separator according to claim 6, it is characterised in that：The ventilative decompression mouth is by ventilative connection
It manages (4-1), breathable films (4-2) and hollow tabletting (4-3) composition, hollow tabletting (4-3) are connected through a screw thread breathable films
(4-2) is pressed on the one end ventilative connecting tube (4-1), and the ventilative connecting tube other end is threadingly attached to the external tapping of circular passage
On (2-3).
8. particle size separator according to claim 7, it is characterised in that：The sampler by sebific duct (6-1) and
Sampling head (6-2) forms, and is flexibly connected with sampler connector (2-5) by sampling head (6-2).
9. according to claim 2-5 any one of them particle size separators, it is characterised in that：The working gas is pole
Property smaller helium or nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374162.XA CN108732080B (en) | 2018-04-24 | 2018-04-24 | Particle size separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374162.XA CN108732080B (en) | 2018-04-24 | 2018-04-24 | Particle size separation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108732080A true CN108732080A (en) | 2018-11-02 |
| CN108732080B CN108732080B (en) | 2020-12-18 |
Family
ID=63939248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810374162.XA Expired - Fee Related CN108732080B (en) | 2018-04-24 | 2018-04-24 | Particle size separation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108732080B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051195A (en) * | 2020-09-11 | 2020-12-08 | 韩山师范学院 | Smoke intensity measuring structure, smoke intensity measuring equipment and smoke intensity measuring method |
| WO2021120939A1 (en) * | 2019-12-20 | 2021-06-24 | 瑞芯智造(深圳)科技有限公司 | Micro-nano particle detection device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109423A (en) * | 2011-01-18 | 2011-06-29 | 北京大学 | Electrostatic field-based air sampler and sampling method thereof |
| CN102749273A (en) * | 2011-04-20 | 2012-10-24 | 北京汇丰隆经济技术开发有限公司 | Aerosol particle size classification detection system |
| CN103900860A (en) * | 2014-03-12 | 2014-07-02 | 吉林大学 | Sectional sampling system of particles with various particle sizes in engine exhaust gas |
| KR20160097620A (en) * | 2015-02-09 | 2016-08-18 | 한양대학교 산학협력단 | Apparatus for classifying particle by electrically mobility |
| WO2017083621A1 (en) * | 2015-11-13 | 2017-05-18 | Daren Chen | Curved classifiers and classification methods |
-
2018
- 2018-04-24 CN CN201810374162.XA patent/CN108732080B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109423A (en) * | 2011-01-18 | 2011-06-29 | 北京大学 | Electrostatic field-based air sampler and sampling method thereof |
| CN102749273A (en) * | 2011-04-20 | 2012-10-24 | 北京汇丰隆经济技术开发有限公司 | Aerosol particle size classification detection system |
| CN103900860A (en) * | 2014-03-12 | 2014-07-02 | 吉林大学 | Sectional sampling system of particles with various particle sizes in engine exhaust gas |
| KR20160097620A (en) * | 2015-02-09 | 2016-08-18 | 한양대학교 산학협력단 | Apparatus for classifying particle by electrically mobility |
| WO2017083621A1 (en) * | 2015-11-13 | 2017-05-18 | Daren Chen | Curved classifiers and classification methods |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021120939A1 (en) * | 2019-12-20 | 2021-06-24 | 瑞芯智造(深圳)科技有限公司 | Micro-nano particle detection device and method |
| GB2606884A (en) * | 2019-12-20 | 2022-11-23 | Resun Shenzhen Tech Co Ltd | Micro-nano particle detection device and method |
| CN112051195A (en) * | 2020-09-11 | 2020-12-08 | 韩山师范学院 | Smoke intensity measuring structure, smoke intensity measuring equipment and smoke intensity measuring method |
| CN112051195B (en) * | 2020-09-11 | 2024-05-14 | 韩山师范学院 | Smoke intensity measuring structure, smoke intensity measuring equipment and smoke intensity measuring method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108732080B (en) | 2020-12-18 |
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