CN106334468A - Vortex scattering diluter and exposure apparatus - Google Patents
Vortex scattering diluter and exposure apparatus Download PDFInfo
- Publication number
- CN106334468A CN106334468A CN201510415587.7A CN201510415587A CN106334468A CN 106334468 A CN106334468 A CN 106334468A CN 201510415587 A CN201510415587 A CN 201510415587A CN 106334468 A CN106334468 A CN 106334468A
- Authority
- CN
- China
- Prior art keywords
- gas passage
- diluter
- vortex scattering
- scattering
- vortex
- 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.)
- Withdrawn
Links
- 239000000443 aerosol Substances 0.000 claims abstract description 33
- 241001465754 Metazoa Species 0.000 claims description 10
- 238000002474 experimental method Methods 0.000 claims description 6
- 238000010790 dilution Methods 0.000 description 16
- 239000012895 dilution Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 4
- 239000003085 diluting agent Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 230000009885 systemic effect Effects 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000007059 acute toxicity Effects 0.000 description 1
- 231100000403 acute toxicity Toxicity 0.000 description 1
- 238000010171 animal model Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 231100000727 exposure assessment Toxicity 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- -1 that is Substances 0.000 description 1
Landscapes
- Nozzles (AREA)
Abstract
The invention discloses a vortex scattering diluter and an exposure apparatus. The vortex scattering diluter comprises a diluter body. The diluter body is provided with a first gas channel and a second gas channel, wherein the first gas channel has a circular cross section and comprises an air inlet section, a middle section and an air outlet section; the area of the cross section of the second gas channel is less than the area of the cross section of the middle section of the first gas channel; and the second gas channel is in vertical and tangent communication with the middle section of the first gas channel. Moreover, the invention discloses the exposure apparatus. According to the vortex scattering diluter, since the second gas channel is in vertical and tangent communication with the middle section of the first gas channel, high-speed air enters the first gas channel along the circumferential wall of the first gas channel for vertical and tangent mixing with aerosol and spirally flows towards the outlet of the vortex scattering diluter along the circumferential wall of the first gas channel so as to allow mixing between air and aerosol to be more uniform; and diluted aerosol has consistent and stable concentration.
Description
Technical field
The invention belongs to material mixing dilution technology field, more particularly, to a kind of vortex scattering diluter and exposure device.Can be used for sucking toxicity Drug safety assessment, pesticide acute toxicity sucks experimentation, build the various disease model of animal copd and its curative effect of medication experimentation, atmosphere pollution to research of animal breath systematic influence etc..
Background technology
At present, it is to suck in the related various scientific researches of toxicity, more particularly to human health nuisance Quality Research, such as pm2.5 etc., due to can not directly or can not first the mankind be tested, so often laboratory animal to be used carries out suction Exposure Assessment.Therefore, animal exposing device has a wide range of applications in industry, agricultural, medical science, environmental pollution and military science research.China's animal of the prior art exposing device is mainly by systemic exposure and two kinds of head exposure device.In mouth and nose exposure unit, in current home products, be all first the high concentration aerosol dilution that apparatus for aerosol creation generates is become the aerosol of preset concentration after, for mouth and nose expose experiment.However, after existing diluent facilities are diluted to aerosol, inventor finds that the aerocolloidal concentration after dilution is unstable, and aerosol is uneven with the mixing of high-speed air.Additionally, existing diluent facilities volume ratio is larger.
Content of the invention
This bright purpose is intended to overcome at least one defect of existing diluent facilities, a kind of novel vortex scattering diluter and exposure device are provided, stable to making aerocolloidal concentration after aerosol dilution, that is, aerosol is mixed homogeneously with high-speed air, and the small volume of this vortex scattering diluter.
For this reason, the invention provides a kind of vortex scattering diluter, it includes diluter body.Offer on described diluter body: first gas passage, its cross section is circle, and has air inlet section, interlude and air outlet section；With second gas passage, the area of its cross section is less than the area of the cross section of interlude of described first gas passage, and tangent connection vertical with the interlude of described first gas passage, so that the gas in described second gas passage enters described first gas passage along the perisporium of described first gas passage.
Further, the cross-sectional area of the air outlet section of described first gas passage gradually expands from the inlet end of described first gas passage towards the outlet side of described first gas passage.
Further, the 1/7 to 1/4 of the interlude diameter of a diameter of described first gas passage of described second gas passage.
Further, the axis of described first gas passage is straight line；The cross-sectional profiles of described second gas passage are circular or rectangle.
Further, the 1/16 to 1/10 of the middle segment length of a diameter of described first gas passage of described second gas passage.
Further, the air outlet section of described first gas passage is along arc-type path flaring.
Further, described arc-type path is 1/4 circular arc line.
Further, described diluter body is cylindrical body；And described first gas passage extends along the axis of described diluter body, it is provided with female thread in the air inlet pipe of described first gas passage, to install the exterior line joint connecting with described first gas passage；Stepped hole is offered, to install the exterior line joint with described second gas channel connection on the perisporium of described diluter body；The perisporium bottom of described diluter body offers annular mounting recess.
Present invention also offers a kind of exposure device exposing experiment for animal, including the housing, aerosol generating device and the air compressor that define exposure chamber in it, especially, this exposure device also includes any of the above-described kind of vortex scattering diluter, and the air inlet of the first gas passage of described vortex scattering diluter is via the aerosol outlet of pipeline connection to described aerosol generating device；The gas outlet of first gas passage of described vortex scattering diluter is connected with described exposure chamber；The air inlet of the second gas passage of described vortex scattering diluter is via the compressed gas outlet of pipeline connection to described air compressor.
Further, described exposure chamber is cylindricality；And described vortex scattering diluter is installed on the upper end cover of institute's housing.
At least there is following technique effect in the present invention:
1) because the tangent connection vertical with first gas passage of second gas passage in the vortex scattering diluter of the present invention, second gas (high-speed air) can be made along the perisporium entrance first gas passage of first gas passage, tangent mixing vertical with first gas (aerosol), and along first gas passage perisporium spirally to the output flow of vortex scattering diluter, flow path is long, so that the incorporation time of first gas and second gas is long, make mixing more uniform, the aerocolloidal concentration after dilution is consistent, more stable.
2) due to second gas in first gas passage along first gas passage perisporium spirally to the output flow of vortex scattering diluter, compact conformation, the small volume of vortex scattering diluter in the case of equal length mixed path, can be made.
3) spirally flow along the perisporium of first gas passage because of the aerosol after dilution in the vortex scattering diluter of the present invention, in the gas outlet end of first gas passage, the aerosol after dilution can be made to throw away to surrounding without loss.Meanwhile, the divergent type structure of first gas passage air outlet section, can make the aerosol after dilution quickly and evenly disperse to the surrounding of the gas outlet of first gas passage and front, may be particularly useful for cylindricality and expose cavity.With respect to existing diluent facilities, the vortex scattering diluter of the present invention does not need with longer taper surface guiding in longer cavity so that the aerosol dispersion after dilution is to exposure chamber.
Brief description
Describe some specific embodiments of the present invention hereinafter with reference to the accompanying drawings by way of example, and not by way of limitation in detail.In accompanying drawing, identical reference denotes same or similar part or part.It should be appreciated by those skilled in the art that what these accompanying drawings were not necessarily drawn to scale.In accompanying drawing:
Fig. 1 is the schematic elevational view of the vortex scattering diluter according to one embodiment of the invention；
Fig. 2 is the schematic cross sectional views of the vortex scattering diluter according to one embodiment of the invention；
Fig. 3 is the schematic cross sectional views in the a-a face along along Fig. 1；
Fig. 4 is the schematic diagram of the exposure device according to one embodiment of the invention；
Fig. 5 is the schematic diagram of existing exposure device.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with accompanying drawing, specific embodiment are described in detail.
Fig. 1 is the schematic elevational view of the vortex scattering diluter according to one embodiment of the invention, as shown in Figure 1 and referring to figs. 2 and 3 embodiments providing vortex scattering diluter, it may include diluter body 200.First gas passage 210 and second gas passage 220 are offered on diluter body 200.Especially, the cross section of first gas passage 210 is circle, and has air inlet section 211, interlude 212 and air outlet section 213, first gas relatively low for being passed through speed, the such as aerosol of high concentration.The area of its cross section of second gas passage 220 is less than the area of the cross section of interlude 212 of first gas passage 210.And, second gas passage 220 tangent connection vertical with the interlude 212 of first gas passage 210, so that the gas in second gas passage 220 is along the perisporium entrance first gas passage 210 of first gas passage 210.Second gas passage 220 is used for being passed through the higher second gas of flow velocity, such as compressed air.The vortex scattering diluter of the present invention is particularly well-suited to aerosol is diluted, because second gas passage 220 tangent connection vertical with first gas passage 210, second gas (high-speed air) can be made along the perisporium entrance first gas passage 210 of first gas passage 210, tangent mixing vertical with first gas (aerosol), and along first gas passage 210 perisporium spirally to the output flow of vortex scattering diluter, flow path is long, so that the incorporation time of first gas and second gas is long, make mixing more uniform, aerocolloidal concentration after dilution is consistent, more stable.
In some embodiments of the invention, diluter body 200 is cylindrical body；And the axis of first gas passage 210 is straight line, the axis of second gas passage 220 is also straight line, and the cross-sectional profiles of second gas passage 220 are circular or rectangle.Specifically, first gas passage 210 extends along the axis of diluter body, is provided with female thread in the air inlet pipe of first gas passage 210, to install the exterior line joint connecting with first gas passage 210.Stepped hole is offered, to install the exterior line joint connecting with second gas passage 220 on the perisporium of diluter body.The perisporium bottom of diluter body 200 offers annular mounting recess 240, in order to vortex scattering diluter.The diameter of second gas passage 220 can be the 1/7 to 1/4 of interlude 212 diameter of first gas passage 210.The diameter of second gas passage 220 can be the 1/16 to 1/10 of interlude 212 length of first gas passage 210.
In order to enable the aerosol after dilution rapidly to be spread, the cross-sectional area of the air outlet section 213 of first gas passage 210 gradually expands from the inlet end of first gas passage 210 towards the outlet side of first gas passage 210, the aerosol after dilution can be made to throw away to surrounding without loss, even if the aerosol after dilution quickly and evenly disperses to surrounding, may be particularly useful for cylindricality and expose chamber 310 body.Preferably, the air outlet section 213 of first gas passage 210 is along arc-type path flaring.Arc-type path is 1/4 circular arc line.
Fig. 4 is the schematic diagram of the exposure device according to one embodiment of the invention, the flow path of in figure helix and expression air-flow, and solid arrow represents the dispersal direction of air-flow.The embodiment of the present invention additionally provides a kind of exposure device exposing experiment for animal, including the vortex scattering diluter defining in it in housing 300 exposing chamber 310, aerosol generating device and air compressor and any of the above-described embodiment, and the air inlet of the first gas passage 210 of vortex scattering diluter is via the aerosol outlet of pipeline connection to aerosol generating device；The gas outlet of first gas passage 210 of vortex scattering diluter connects with exposing chamber 310；The air inlet of the second gas passage 220 of vortex scattering diluter exports via the compressed gas of pipeline connection to air compressor.Exposing chamber 310 can be cylindricality.Vortex scattering diluter is installed on the upper end cover of institute's housing 300, and specifically, the installation groove 240 of vortex scattering diluter is installed on the upper end cover of housing 300.This exposure device can be used for the experiment of animal systemic exposure or animal mouth and nose suck and expose experiment.
Fig. 5 is the schematic diagram of existing exposure device, and in figure arrow represents flow path and the dispersal direction of air-flow.The top of the exposure chamber 300' of existing exposure device is taper, to guide the diffusion of the air-flow flowing out from the mixed diluting passage 210' of existing aerosol dilution equipment 200', obviously, the diffusion effect of the vortex scattering diluter of the embodiment of the present invention and exposure device is better than traditional aerosol dilution equipment.The volume of the vortex scattering diluter of the embodiment of the present invention and exposure device is far smaller than traditional aerosol dilution equipment 200' and exposure device.
The above be only the preferred embodiment of the present invention it is noted that for those skilled in the art, under the premise without departing from the principles of the invention, any improvements and modifications made also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of vortex scattering diluter, including diluter body it is characterised in that offering on described diluter body:
First gas passage, its cross section is circle, and has air inlet section, interlude and air outlet section；With
Second gas passage, the area of its cross section is less than the area of the cross section of interlude of described first gas passage, and tangent connection vertical with the interlude of described first gas passage, so that the gas in described second gas passage enters described first gas passage along the perisporium of described first gas passage.
2. vortex scattering diluter according to claim 1 it is characterised in that
The cross-sectional area of the air outlet section of described first gas passage gradually expands from the inlet end of described first gas passage towards the outlet side of described first gas passage.
3. vortex scattering diluter according to claim 1 it is characterised in that
The 1/7 to 1/4 of the interlude diameter of a diameter of described first gas passage of described second gas passage.
4. vortex scattering diluter according to claim 1 it is characterised in that
The axis of described first gas passage is straight line；
The cross-sectional profiles of described second gas passage are circular or rectangle.
5. vortex scattering diluter according to claim 1 it is characterised in that
The 1/16 to 1/10 of the middle segment length of a diameter of described first gas passage of described second gas passage.
6. vortex scattering diluter according to claim 2 it is characterised in that
The air outlet section of described first gas passage is along arc-type path flaring.
7. vortex scattering diluter according to claim 6 it is characterised in that
Described arc-type path is 1/4 circular arc line.
8. vortex scattering diluter according to claim 1 it is characterised in that
Described diluter body is cylindrical body；And
Described first gas passage extends along the axis of described diluter body, is provided with female thread in the air inlet pipe of described first gas passage, to install the exterior line joint connecting with described first gas passage；
Stepped hole is offered, to install the exterior line joint with described second gas channel connection on the perisporium of described diluter body；
The perisporium bottom of described diluter body offers annular mounting recess.
9. a kind of exposure device exposing experiment for animal, exposes the housing in chamber, aerosol generating device and air compressor it is characterised in that also including the vortex scattering diluter any one of claim 1 to 8 including defining in it, and
The air inlet of the first gas passage of described vortex scattering diluter is via the aerosol outlet of pipeline connection to described aerosol generating device；
The gas outlet of first gas passage of described vortex scattering diluter is connected with described exposure chamber；
The air inlet of the second gas passage of described vortex scattering diluter is via the compressed gas outlet of pipeline connection to described air compressor.
10. exposure device according to claim 9 it is characterised in that
Described exposure chamber is cylindricality；And
Described vortex scattering diluter is installed on the upper end cover of institute's housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510415587.7A CN106334468A (en) | 2015-07-16 | 2015-07-16 | Vortex scattering diluter and exposure apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510415587.7A CN106334468A (en) | 2015-07-16 | 2015-07-16 | Vortex scattering diluter and exposure apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106334468A true CN106334468A (en) | 2017-01-18 |
Family
ID=57827151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510415587.7A Withdrawn CN106334468A (en) | 2015-07-16 | 2015-07-16 | Vortex scattering diluter and exposure apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106334468A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1546063A (en) * | 1976-05-10 | 1979-05-16 | British American Tobacco Co | Aerosol-diluting apparatus |
| CN1405443A (en) * | 2001-06-05 | 2003-03-26 | 奥尔塞特工程有限公司 | Mixing of fluid flow |
| WO2007106686A2 (en) * | 2006-03-10 | 2007-09-20 | Novo Nordisk A/S | Medical apparatus and method for homogenous aerosol creation |
| CN204996345U (en) * | 2015-07-16 | 2016-01-27 | 北京慧荣和科技有限公司 | Vortex scattering diluter and expose equipment |
-
2015
- 2015-07-16 CN CN201510415587.7A patent/CN106334468A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1546063A (en) * | 1976-05-10 | 1979-05-16 | British American Tobacco Co | Aerosol-diluting apparatus |
| CN1405443A (en) * | 2001-06-05 | 2003-03-26 | 奥尔塞特工程有限公司 | Mixing of fluid flow |
| WO2007106686A2 (en) * | 2006-03-10 | 2007-09-20 | Novo Nordisk A/S | Medical apparatus and method for homogenous aerosol creation |
| CN204996345U (en) * | 2015-07-16 | 2016-01-27 | 北京慧荣和科技有限公司 | Vortex scattering diluter and expose equipment |
Non-Patent Citations (1)
| Title |
|---|
| 环境保护部化学品登记中心《化学品测试方法》编委会: "《化学品测试方法健康效应卷（第二版》", 中国环境出版社, pages: 403 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20120037096A (en) | Cage type apparatus for testing inhalation toxicity of aerosol paticles | |
| CN204996345U (en) | Vortex scattering diluter and expose equipment | |
| EP1844690A3 (en) | Foam soap generator | |
| KR102028821B1 (en) | Device and method for detecting airborne microorganism | |
| CN107753144A (en) | Hand-held liquid aerosol lung delivery apparatus | |
| CN203749643U (en) | Exposure equipment for smoke inhaled by mouth and nose of animal | |
| JP2015514976A (en) | Device for collecting exhaust gas samples of internal combustion engines | |
| CN203988482U (en) | Many concentration of combination type animal mouth and nose suck exposure system | |
| CN106334468A (en) | Vortex scattering diluter and exposure apparatus | |
| CN203432980U (en) | Multi-concentration animal oral-nasal inhalation dynamic exposure unit | |
| CN104368250B (en) | Gas or aerosol mixing or dilution device | |
| RU2700982C2 (en) | System for exposure to allergens, comprising chamber for mixing air and allergens, which is separated from exposure room, in which patients are placed | |
| CN203425730U (en) | Gas or aerosol mixing or diluting device | |
| JPS5716333A (en) | Sampling device for solid-gas mixture phase fluid | |
| CN104374928A (en) | Multi-concentration animal oral-nasal inhalation dynamic exposure equipment | |
| JP2000329661A (en) | Exhaust gas dilution apparatus | |
| CN207036509U (en) | A kind of particle on-line period dilution tube | |
| CN105092786A (en) | Oppositely-impacting quantitative atomization drug delivery apparatus | |
| CN104374929B (en) | Many dynamic exposure units of concentration animal mouth and nose suction | |
| CN201173888Y (en) | Detection system for cigarette flue gas aerosol | |
| CN104492295B (en) | Detection premix disperse system | |
| CN206027482U (en) | Powder vortex dispersion devices | |
| CN208406890U (en) | Fixed proportion diluter | |
| CN203635091U (en) | Gas or aerosol mixing or diluting device | |
| CN201203567Y (en) | System for detecting cigarette gas aerosol |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170118 |