CN106383075A - Condensation nucleus particle growth device - Google Patents
Condensation nucleus particle growth device Download PDFInfo
- Publication number
- CN106383075A CN106383075A CN201610963882.0A CN201610963882A CN106383075A CN 106383075 A CN106383075 A CN 106383075A CN 201610963882 A CN201610963882 A CN 201610963882A CN 106383075 A CN106383075 A CN 106383075A
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- CN
- China
- Prior art keywords
- cabin
- refrigeration
- core
- saturation chamber
- particle growth
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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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Classifications
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- 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
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/065—Investigating concentration of particle suspensions using condensation nuclei counters
-
- 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
- G01N15/14—Electro-optical investigation, e.g. flow cytometers
-
- 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
- G01N15/14—Electro-optical investigation, e.g. flow cytometers
- G01N2015/1486—Counting the particles
Abstract
The invention relates to a condensation nucleus particle growth device, which comprises a saturation cabin and a refrigeration cabin, wherein the refrigeration cabin comprises a refrigeration outer cabin and an refrigeration inner cabin connected into the refrigeration outer cabin in a sealed way; a gas passage is arranged in the refrigeration inner cabin; the inside of the saturation cabin is hollow; one end of the saturation cabin is fixedly connected with the refrigeration outer cabin; the other end of the saturation cabin is provided with an alcohol core in a pluggable manner; a gas passage is arranged in the alcohol core; a semiconductor refrigeration block with a center through hole is tightly pressed between the saturation cabin and the refrigeration inner cabin; the cold end of the semiconductor refrigeration block is tightly attached onto the refrigeration inner cabin through a first heat conduction sheet; the heat end of the semiconductor refrigeration block is tightly attached to the saturation cabin through a second heat conduction sheet; the gas passage formed in the alcohol core communicates with the air passage arranged in the refrigeration inner cabin through the semiconductor refrigeration block.
Description
Technical field
The present invention relates to a kind of particle growth device, more particularly to a kind of nuclei of condensation particle growth device.
Background technology
Current gasoloid technology, the most frequently used when carrying out population measurement is exactly laser particle counter.But swash
The minimum grain size that light particle enumerator can measure is probably in 100nm, and needs to count particle diameter in a lot of special dimensions and be less than
The granule of 100nm, in this case, laser particle counter cannot meet use demand.And condensation nucleus counter overcomes
This difficult problem, its operation principle is：Particulate matter can be sufficiently mixed with alcohol steam when the alcohol steam of high temperature saturation, so
Afterwards by the condenser of low temperature, alcohol steam is changed into hypersaturated state at low temperature, thus condensing out droplet, droplet is with thin
Small particle is grown into the large-size particles thing for being detected by laser particle counter for the nuclei of condensation.Particulate matter enters
Behind light sensitive area, scattering can be produced to the laser being radiated on particulate matter, collect this some scattered light and carry out opto-electronic conversion meeting
Obtain a pulse signal, the number calculating pulse signal can obtain the number of particle.
But existing nuclei of condensation grain growth device, typically adopts alcohol trough as ethanol volatilization device, carries out in bottom land
Heating, it is uneven that this structure easily causes that alcohol steam mixed with particulate matter, connects between condensing units and detection means meanwhile
Adapter passes by length, easily occurs breaking with tiny particles content for the large-size particles thing impact tube trackside wall condensing nucleus growth formation completely
Situation about splitting, the growth efficiency of impact particulate matter.It is additionally, since the split design of heating, condensation, alcohol trough, cause particle to give birth to
Growth device volume is big, and power consumption is big.For solving the above problems, need badly and develop a kind of particle growth rate height, small volume, low in energy consumption new
Type nuclei of condensation particle growth device.
Content of the invention
For the problems referred to above, it is an object of the invention to provide a kind of particle growth rate is high, low in energy consumption, the small volume nuclei of condensation
Particle growth device.
For achieving the above object, the present invention employs the following technical solutions：A kind of nuclei of condensation particle growth device, its feature exists
In：It includes saturation chamber and refrigeration cabin；Described refrigeration cabin includes freezing outer cabin and is sealedly connected on the described system freezed in outer cabin
Cold interior cabin, arranges gas passage in cabin in described refrigeration；The inner hollow of described saturation chamber, described saturation chamber one end and described system
Cold outer cabin is fixedly connected, and the other end is provided with ethanol core pluggablely, and described ethanol in-core is provided with gas passage；Described saturation
In cabin and described refrigeration, between cabin, compression has the semiconductor refrigerating block with central through hole, and the cold end of described semiconductor refrigerating block is led to
Cross the first conducting strip and be close to cabin in described refrigeration, described saturation is close to by the second conducting strip in the hot junction of described semiconductor refrigerating block
Cabin；Gas passage in described ethanol core is passed through described semiconductor refrigerating block and is connected with the gas passage in cabin in described refrigeration.
Described ethanol core is in notch cuttype tubular structure, including end and core；The described end of described ethanol core with described
The free end of saturation chamber is fixedly connected, and described core axial direction along described saturation chamber in described saturation chamber connects.
It is provided with gas circuit clamping ring, the gas circuit in described gas circuit clamping ring in the central through hole of described semiconductor refrigerating block
Passage is connected with the gas passage in cabin in the gas passage in described ethanol core, refrigeration respectively.
It is equipped with cavity in cabin, in described refrigeration, cabin is arranged on the outer cabin of described refrigeration in the outer cabin of described refrigeration and described refrigeration
Cavity in, in described refrigeration, the cavity in cabin is gas passage, is provided with O in described refrigeration between the outer cabin of cabin and described refrigeration
Type circle and sealing gasket.
The outer cabin of described refrigeration and the setting of described saturation chamber connection end are fluted, correspondingly, in described saturation chamber towards described
The one end in the outer cabin of refrigeration is provided with boss structure, and described semiconductor refrigerating block is arranged on described groove and the cooperation of described boss structure
In the cavity being formed.
Described first conducting strip and the second conducting strip all using alumina ceramic plate, its area and described semiconductor refrigerating block
Face area identical.
It is provided with O-ring between described semiconductor refrigerating block and described saturation chamber, in described semiconductor refrigerating block and institute
State and in refrigeration, between cabin, be provided with O-ring.
Described ethanol core adopts polythene material, and the volatile liquid of described ethanol in-core adopts isopropanol.
In described saturation chamber and described refrigeration, cabin is all using aluminum alloy material, in described saturation chamber and the outer cabin of described refrigeration
Outer wrap has insulation material.
In described refrigeration, cabin connects air pump, and the sampling flow of described air pump is 0.2-0.4L/min.
Due to taking above technical scheme, it has advantages below to the present invention：1st, the present invention is by pluggable in saturation chamber
Ground setting ethanol core, is capable of alcohol steam and is sufficiently mixed with particulate matter, improve the growth efficiency condensing nuclear particle.2nd, this
Bright a semiconductor refrigerating block, and the small power consumption of semiconductor refrigerating block are shared by saturation chamber and refrigeration cabin, using the teaching of the invention it is possible to provide a kind of
The high particle growth device of low-power consumption, small volume, rate of growth.3rd, the present invention is carried out using gas circuit clamping ring, O-ring and sealing gasket
Sealing, improves the sealing of whole device.
Brief description
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the overall structure exploded perspective view of the present invention；
Fig. 3 is the structural representation of ethanol core of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is described in detail.
As shown in Figure 1 and Figure 2, the present invention includes saturation chamber 1 and refrigeration cabin.Refrigeration cabin includes freezing outer cabin 2 and is tightly connected
Cabin 3 in the refrigeration in outer cabin 2 of freezing, setting gas passage in cabin 3 in refrigeration.The inner hollow of saturation chamber 1, saturation chamber 1 one
End is fixedly connected with outer cabin 2 of freezing, and the other end is provided with ethanol core 4 pluggablely.It is provided with gas passage (such as in ethanol core 4
Shown in Fig. 3).In saturation chamber 1 and refrigeration, between cabin 3, compression has the semiconductor refrigerating block 5 with central through hole, semiconductor refrigerating block
5 cold end is close to, by conducting strip 6, interior cabin 3 of freezing, and saturation chamber 1 is close to by conducting strip 7 in the hot junction of semiconductor refrigerating block 5.Wine
Gas passage in smart core 4 is passed through semiconductor refrigerating block 5 and is connected with the gas passage in cabin 3 in refrigeration.
In above-described embodiment, ethanol core 4 is in notch cuttype tubular structure, including end 14 and core 15, the end of ethanol core 4
14 are fixedly connected with the free end of saturation chamber 1, and its core 15 axial direction along saturation chamber in saturation chamber 1 connects.
In above-described embodiment, the central through hole of semiconductor refrigerating block 5 is provided with gas circuit clamping ring 8, gas circuit clamping ring 8
In gas channels connect with the gas passage in cabin 3 in the gas passage in ethanol core 4, refrigeration respectively.Gas circuit clamping ring 8
Setting can better ensure that the sealing of gas passage.
In above-described embodiment, in the outer cabin of refrigeration 2 and refrigeration, in cabin 3, it is equipped with cavity, in refrigeration, cabin 2 is arranged on the outer cabin of refrigeration
In 3 cavity, in refrigeration, the cavity in cabin 3 is gas passage, is provided with O-ring 9,10 in refrigeration between cabin 3 and the outer cabin 2 of refrigeration
With sealing gasket 11.
In above-described embodiment, freeze outer cabin 2 and saturation chamber 1 connection end setting fluted, correspondingly, saturation chamber 1 towards
The one end in the outer cabin 2 of refrigeration is provided with boss structure, and semiconductor refrigerating block 5 is arranged on the cavity that groove and boss structure cooperatively form
Interior.
In above-described embodiment, saturation chamber 1 is fixedly connected by flange between outer cabin 2 with freezing.
In above-described embodiment, conducting strip 6 and conducting strip 7 all using alumina ceramic plate, its area and semiconductor refrigerating block 5
Face area identical, there is good heat transmission characteristic.
In above-described embodiment, semiconductor refrigerating block 5 and saturation chamber 1 are provided with O-ring 12, semiconductor refrigerating block 5 with
It is provided with O-ring 13 between cabin 2 in refrigeration.
In above-described embodiment, ethanol core 4 adopts polythene material, and the volatile liquid in ethanol core 4 adopts isopropanol.
In above-described embodiment, in saturation chamber 1 and refrigeration, cabin 3 all adopts aluminum alloy material, in saturation chamber 1 and the outer cabin 2 of refrigeration
Outside can be enclosed with insulation material.
In above-described embodiment, flow to cabin 3 in refrigeration in order to realize gas from saturation chamber 1, in refrigeration, cabin 3 connects air pump
(not shown), the sampling flow of air pump is 0.2-0.4L/min, preferably 0.35L/min.
The work process of the present invention is as follows：Through the pumping of air pump, the gas comprising small particle enters saturation chamber 1,
The inside of the ethanol core 4 in saturation chamber 1, ethanol is sufficiently mixed with the small particle in gas by thermal evaporation, subsequently enters system
Cold interior cabin 3, temperature drop in cabin 3 in refrigeration, alcohol steam is condensed into droplet, is attached to for the nuclei of condensation with small particle
Face, makes small particle be grown to bulky grain thing.In above process, semiconductor refrigerating block 5 after being powered up, near its cold end
Produce electron-hole pair, interior energy reduces, temperature reduces, and outwardly absorbs heat；Hot junction is combined because of electron-hole pair, and interior energy increases,
Temperature raises, and to environment heat release.After energising, the heat transfer of cold end to hot junction, is allowed to produce necessarily by semiconductor refrigerating block 5
The temperature difference, and transfer heat in cabin 3 in saturation chamber 1 and refrigeration, make the temperature difference in saturation chamber and refrigeration cabin control 15 DEG C with
Interior, this temperature difference ensures particle Fast Growth, and particle growth rate reaches 75%.For producing a desired effect, semiconductor refrigerating block 5
Power setting be 0.75A × 5V.
The present invention is only illustrated with above-described embodiment, and the structure of each part, set location and its connection are all to have
Changed.On the basis of technical solution of the present invention, all improvement or equivalent individual part being carried out according to the principle of the invention
Conversion, all should not exclude outside protection scope of the present invention.
Claims (10)
1. a kind of nuclei of condensation particle growth device it is characterised in that：It includes saturation chamber and refrigeration cabin；Described refrigeration cabin includes making
Cold outer cabin and cabin in the refrigeration being sealedly connected in the outer cabin of described refrigeration, arrange gas passage in cabin in described refrigeration；Described full
With the inner hollow in cabin, described saturation chamber one end with described refrigeration outer cabin be fixedly connected, the other end is provided with ethanol pluggablely
Core, described ethanol in-core is provided with gas passage；Compressing between cabin in described saturation chamber and described refrigeration has with central through hole
Semiconductor refrigerating block, the cold end of described semiconductor refrigerating block is close to cabin in described refrigeration by the first conducting strip, described partly leads
Described saturation chamber is close to by the second conducting strip in the hot junction of body cold-making block；Gas passage in described ethanol core is partly led by described
Body cold-making block is connected with the gas passage in cabin in described refrigeration.
2. as claimed in claim 1 a kind of nuclei of condensation particle growth device it is characterised in that：Described ethanol core is in ladder type tube
Shape structure, including end and core；The described end of described ethanol core is fixedly connected with the free end of described saturation chamber, described core
Portion's axial direction along described saturation chamber in described saturation chamber connects.
3. as claimed in claim 1 a kind of nuclei of condensation particle growth device it is characterised in that：In described semiconductor refrigerating block
Be provided with gas circuit clamping ring in central through hole, the gas channels in described gas circuit clamping ring respectively with described ethanol core in gas
Gas passage connection in cabin in passage, refrigeration.
4. as claimed in claim 1 a kind of nuclei of condensation particle growth device it is characterised in that：The outer cabin of described refrigeration and described system
It is equipped with cavity, in described refrigeration, cabin is arranged in the cavity in described outer cabin of freezing, the cavity in cabin in described refrigeration in cold interior cabin
For gas passage, in described refrigeration, it is provided with O-ring and sealing gasket between cabin and the outer cabin of described refrigeration.
5. as claimed in claim 1 a kind of nuclei of condensation particle growth device it is characterised in that：The outer cabin of described refrigeration is full with described
Fluted with the setting of cabin connection end, correspondingly, in described saturation chamber, described one end freezing outer cabin is provided with boss structure,
Described semiconductor refrigerating block is arranged in the cavity that described groove and described boss structure cooperatively form.
6. as claimed in claim 1 a kind of nuclei of condensation particle growth device it is characterised in that：Described first conducting strip and second
, all using alumina ceramic plate, its area is identical with the face area of described semiconductor refrigerating block for conducting strip.
7. as claimed in claim 1 a kind of nuclei of condensation particle growth device it is characterised in that：Described semiconductor refrigerating block with
It is provided with O-ring between described saturation chamber, between cabin in described semiconductor refrigerating block and described refrigeration, be provided with O-ring.
8. as claimed in claim 1 or 2 a kind of nuclei of condensation particle growth device it is characterised in that：Described ethanol core is using poly-
Vinyl material, the volatile liquid of described ethanol in-core adopts isopropanol.
9. as claimed in claim 1 a kind of nuclei of condensation particle growth device it is characterised in that：Described saturation chamber and described refrigeration
All using aluminum alloy material, there is insulation material in interior cabin in the outer wrap of described saturation chamber and the outer cabin of described refrigeration.
10. as claimed in claim 1 a kind of nuclei of condensation particle growth device it is characterised in that：In described refrigeration, cabin connects and takes out
Air pump, the sampling flow of described air pump is 0.2-0.4L/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610963882.0A CN106383075B (en) | 2016-11-04 | 2016-11-04 | Condensation nucleus particle growth device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610963882.0A CN106383075B (en) | 2016-11-04 | 2016-11-04 | Condensation nucleus particle growth device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106383075A true CN106383075A (en) | 2017-02-08 |
| CN106383075B CN106383075B (en) | 2023-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610963882.0A Active CN106383075B (en) | 2016-11-04 | 2016-11-04 | Condensation nucleus particle growth device |
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| CN (1) | CN106383075B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535168A (en) * | 2018-03-12 | 2018-09-14 | 清华大学 | A kind of small particle object condensation growth counter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080047373A1 (en) * | 2006-07-12 | 2008-02-28 | Ahn Kang H | Particle measuring system and method |
| US20080186489A1 (en) * | 2007-02-02 | 2008-08-07 | Kang Ho Ahn | Condensation particle counter |
| CN101725166A (en) * | 2009-11-05 | 2010-06-09 | 张逸林 | Liquefying method for compression cloud chamber |
| JP2014002035A (en) * | 2012-06-18 | 2014-01-09 | National Institute Of Advanced Industrial & Technology | Partial suction type condensed particle counter |
| CN105013609A (en) * | 2015-07-21 | 2015-11-04 | 李森 | Ultrasonic atomization and water molecule phase change active capture electrostatic precipitating method and device |
| DE102015108312A1 (en) * | 2014-05-27 | 2015-12-03 | Avl List Gmbh | Condensation particle counter and method of controlling the condensation particle counter |
| JP2016003879A (en) * | 2014-06-13 | 2016-01-12 | 東京エレクトロン株式会社 | Condensation nucleus counter and condensation nucleus growing method |
-
2016
- 2016-11-04 CN CN201610963882.0A patent/CN106383075B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080047373A1 (en) * | 2006-07-12 | 2008-02-28 | Ahn Kang H | Particle measuring system and method |
| US20080186489A1 (en) * | 2007-02-02 | 2008-08-07 | Kang Ho Ahn | Condensation particle counter |
| CN101725166A (en) * | 2009-11-05 | 2010-06-09 | 张逸林 | Liquefying method for compression cloud chamber |
| JP2014002035A (en) * | 2012-06-18 | 2014-01-09 | National Institute Of Advanced Industrial & Technology | Partial suction type condensed particle counter |
| DE102015108312A1 (en) * | 2014-05-27 | 2015-12-03 | Avl List Gmbh | Condensation particle counter and method of controlling the condensation particle counter |
| JP2016003879A (en) * | 2014-06-13 | 2016-01-12 | 東京エレクトロン株式会社 | Condensation nucleus counter and condensation nucleus growing method |
| CN105013609A (en) * | 2015-07-21 | 2015-11-04 | 李森 | Ultrasonic atomization and water molecule phase change active capture electrostatic precipitating method and device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535168A (en) * | 2018-03-12 | 2018-09-14 | 清华大学 | A kind of small particle object condensation growth counter |
| CN108535168B (en) * | 2018-03-12 | 2023-11-28 | 清华大学 | Small particle condensation growth counter |
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| Publication number | Publication date |
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| CN106383075B (en) | 2023-08-15 |
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Address after: 100071 No. 20 East Main Street, Beijing, Fengtai District Applicant after: Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, PR China Applicant after: Qingdao Zhongrui Intelligent Instrument Co.,Ltd. Address before: 100071 No. 20 East Main Street, Beijing, Fengtai District Applicant before: Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, PR China Applicant before: QINGDAO ZHONGRUI INTELLIGENT INSTRUMENT Co.,Ltd. |
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