CN102890026B - Intake contamination sample feeding system for medically forced atomizing - Google Patents
Intake contamination sample feeding system for medically forced atomizing Download PDFInfo
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- CN102890026B CN102890026B CN201210418128.0A CN201210418128A CN102890026B CN 102890026 B CN102890026 B CN 102890026B CN 201210418128 A CN201210418128 A CN 201210418128A CN 102890026 B CN102890026 B CN 102890026B
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- atomizing
- venturi nozzle
- cyclone separator
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- centrifugal separator
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Abstract
The invention relates to an intake contamination sample feeding system for medically forced atomizing. The system comprises a venturi nozzle, a centrifugal separator, an atomizing cone and a cyclone separator, wherein one end of the venturi nozzle is provided with a tested object inlet and a high-pressure air inlet, the other end of the venturi nozzle is inserted in the centrifugal separator, the centrifugal separator is connected with the cyclone separator through a connection pipe, and the cyclone separator is connected with a contamination cavity through an aerial fog outlet connection pipe. Compared with the prior art, combined atomization is realized through the venturi nozzle and an impact atomizing cone, secondary liquid drop separation is carried out through high-speed centrifugal and cyclone separators, the effective utilization rate of a tested object entering the contamination cavity is improved, and the lower limit of fogdrop size can be reduced effectively.
Description
Technical field
The present invention relates to a kind of Inhalation sampling system, especially relate to a kind of Inhalation sampling system of mechanical forced atomization.
Background technology
Toxicity on inhalation test is that evaluate can inhalation test sample, as volatile matter, gasoloid or particle could absorb and toxicity size through respiratory tract, so that test specimen is carried out to toxicity grading and sign.Inhalation sampling system is the key component that is applied to this test Inhalation equipment.
Conventionally particle diameter is called to PM10 at the particle below 10 microns, be called again pellet.The diameter of particle is less, and the position that enters respiratory tract is darker.More tiny particle is larger to harm, particle diameter can be by vibrissa occlusion over the particle of 10 microns, also can discharge human body by cough, and particle diameter is less than the pellet of 10 microns and can, with people's breathing deposition lung, even can enters alveolar, blood.The particle of 10 micron diameters is deposited on the upper respiratory tract conventionally, the deep of the entered respiratory tract of 5 micron diameters, and 2 microns following can 100% be deep into bronchus and alveolar.Pulmonary deposition ratio the highest be that particle diameter is the particle of 1 micron of left and right.Under these particles deposit on alveolar, damage alveolar and mucous membrane, cause lung tissue pathology and other toxic effects.So, Inhalation test, primary goal, is also how to the most important thing is that by the atomization of tested material particle diameter, to needed size, desirable tested material particle size range is 1-4 micron simultaneously.
The atomization system of current Inhalation equipment is disposable high-pressure atomization technology or utilizes venturi principle, and atomizing effect is not very desirable, and after atomization, mist droplet particle size major part can not reach 10 microns, does not more say and has reached the desirable particle size range of 1-4 micron.If the mist droplet particle size major part after atomization 10 microns and more than, tested material rests on the upper respiratory tract all the time so, can not be deep into bronchus and the alveolar of the lower respiratory tract of animal used as test, cause the validity of Inhalation test findings to be had a greatly reduced quality, accuracy is deeply influenced.
Summary of the invention
Object of the present invention is exactly to provide a kind of volume little in order to overcome the defect of above-mentioned prior art existence, is convenient to safeguard the Inhalation sampling system of easy cleaned mechanical forced atomization.
Object of the present invention can be achieved through the following technical solutions: a kind of Inhalation sampling system of mechanical forced atomization, it is characterized in that, comprise Venturi nozzle, centrifugal separator, atomizer (atomizing) cone, cyclone separator, described Venturi nozzle one end is provided with tested material import and pressure-air import, the other end inserts in centrifugal separator, described atomizer (atomizing) cone is arranged in centrifugal separator, centrifugal separator connects cyclone separator by connecting pipe, and cyclone separator connects contamination chamber by aerosol outlet connecting pipe;
After tested material enters, under the effect of pressure-air, through venturi nozzle ejection, enter centrifugal separator, carry out atomization first, the droplet going out through venturi nozzle ejection impinges upon on the atomizer (atomizing) cone of High Rotation Speed, carries out secondary-atomizing, droplet after secondary-atomizing, under the effect of pressure-air, through connecting pipe, enter cyclone separator, through the isolated droplet of cyclone separator, through aerosol outlet connecting pipe, enter contamination chamber.
Described centrifugal separator bottom is provided with first separating liquid outlet.
Described atomizer (atomizing) cone connects drive motor, and drive motor drives atomizer (atomizing) cone High Rotation Speed.
Described cyclone separator bottom is provided with secondary separation liquid outlet.
The present invention is mainly used in the nebulization sampling of liquid toxicity on inhalation test, improves nebulization efficiency, reduces the particle diameter of droplet, improves validity and the accuracy of test findings.Characteristic of the present invention is by Venturi nozzle and impacting type atomizer (atomizing) cone, realize composite atomizing, and carry out secondary drop separation by high speed centrifugation and whirlwind separator, and improved the tested material effective rate of utilization that enters contamination cavity, effectively reduce the lower limit of mist droplet particle size.
Compared with prior art, the present invention has the following advantages:
1, impacting type atomizer (atomizing) cone and centrifugal separator position integrated structure design, volume is little, is convenient to safeguard, is easy to clean;
2, one-level atomization utilizes Venturi nozzle, and secondary atomization utilizes impacting type atomizer (atomizing) cone;
3, tested material is through secondary drop separation;
4, improve the tested material effective rate of utilization that enters contamination cavity, effectively reduced the lower limit of mist droplet particle size.
Accompanying drawing explanation
Fig. 1 is the structural representation of system of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1:
As shown in Figure 1, a kind of Inhalation sampling system of mechanical forced atomization, comprise Venturi nozzle 1, centrifugal separator 2, atomizer (atomizing) cone 3, cyclone separator 4, described Venturi nozzle 1 one end is provided with tested material import 5 and pressure-air import 6, and the other end inserts in centrifugal separator 2, and described atomizer (atomizing) cone 3 is arranged in centrifugal separator 2, atomizer (atomizing) cone 3 connects drive motor 7, and drive motor 7 drives atomizer (atomizing) cone 3 High Rotation Speeds.Centrifugal separator 2 tops are provided with aerosol outlet, and bottom is provided with first separating liquid outlet 8, and the aerosol outlet at centrifugal separator 2 tops connects cyclone separator 4 by connecting pipe 9, and cyclone separator 4 connects contamination chamber 11 by aerosol outlet connecting pipe 10; Cyclone separator 4 bottoms are provided with secondary separation liquid outlet 12.
The process that use said apparatus carries out sample introduction is as follows:
(1) tested material enters after Venturi nozzle 1 by tested material import 5, under the effect of the pressure-air of inputting in pressure-air import 6, through Venturi nozzle 1, spurts into centrifugal separator 2, completes atomization first;
(2) droplet ejecting through Venturi nozzle 1 impinges upon on the atomizer (atomizing) cone 3 of High Rotation Speed, completes secondary-atomizing;
(3) tested material of 2 li of depositions of centrifugal separator, can discharge by primary separation liquid outlet 8;
(4) droplet after secondary-atomizing, under the effect of pressure-air, enters cyclone separator 4 through connecting pipe 9;
(5) tested material of 4 li of depositions of cyclone separator, can discharge by secondary separation liquid outlet 12;
(6) through the isolated droplet of cyclone separator 4, through aerosol outlet connecting pipe 10, enter contamination chamber 11.
Claims (4)
1. the Inhalation sampling system of a mechanical forced atomization, it is characterized in that, comprise Venturi nozzle, centrifugal separator, atomizer (atomizing) cone, cyclone separator, described Venturi nozzle one end is provided with tested material import and pressure-air import, and the other end inserts in centrifugal separator, and described atomizer (atomizing) cone is arranged in centrifugal separator, centrifugal separator connects cyclone separator by connecting pipe, and cyclone separator connects contamination chamber by aerosol outlet connecting pipe;
After tested material enters, under the effect of pressure-air, through venturi nozzle ejection, enter centrifugal separator, carry out atomization first, the droplet going out through venturi nozzle ejection impinges upon on the atomizer (atomizing) cone of High Rotation Speed, carries out secondary-atomizing, droplet after secondary-atomizing, under the effect of pressure-air, through connecting pipe, enter cyclone separator, through the isolated droplet of cyclone separator, through aerosol outlet connecting pipe, enter contamination chamber.
2. the Inhalation sampling system of a kind of mechanical forced atomization according to claim 1, is characterized in that, described centrifugal separator bottom is provided with first separating liquid outlet.
3. the Inhalation sampling system of a kind of mechanical forced atomization according to claim 1, is characterized in that, described atomizer (atomizing) cone connects drive motor, and drive motor drives atomizer (atomizing) cone High Rotation Speed.
4. the Inhalation sampling system of a kind of mechanical forced atomization according to claim 1, is characterized in that, described cyclone separator bottom is provided with secondary separation liquid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210418128.0A CN102890026B (en) | 2012-10-26 | 2012-10-26 | Intake contamination sample feeding system for medically forced atomizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210418128.0A CN102890026B (en) | 2012-10-26 | 2012-10-26 | Intake contamination sample feeding system for medically forced atomizing |
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| CN102890026A CN102890026A (en) | 2013-01-23 |
| CN102890026B true CN102890026B (en) | 2014-11-05 |
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| CN201210418128.0A Active CN102890026B (en) | 2012-10-26 | 2012-10-26 | Intake contamination sample feeding system for medically forced atomizing |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179216B (en) * | 2017-06-13 | 2019-04-23 | 西南科技大学 | A kind of mineral grain separating and sampling unit |
| CN107593676B (en) * | 2017-10-20 | 2023-05-12 | 北京泊易行咨询有限公司 | Atomization mite removing device |
| CN110215309B (en) * | 2019-05-31 | 2022-03-18 | 上海化工研究院有限公司 | Lifting type particle size selection atomization drug delivery device |
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| CN102528035A (en) * | 2011-12-31 | 2012-07-04 | 西北工业大学 | System and method for forming disk part by performing two-stage atomizing and spraying |
| CN202290381U (en) * | 2011-11-02 | 2012-07-04 | 核工业理化工程研究院 | Combined atomizer |
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| RU2102720C1 (en) * | 1996-05-28 | 1998-01-20 | Государственный научно-исследовательский институт органической химии и технологии | Absorption device for evaluation of ecological purity of air |
| JP2004344866A (en) * | 2003-05-23 | 2004-12-09 | Yasunobu Yoshida | Method of removing volatile organic compound or the like, and apparatus therefor |
| CN1803307A (en) * | 2006-01-24 | 2006-07-19 | 广东省职业病防治院 | Liquid atomising device and its uses as drug addict device |
| CN2899734Y (en) * | 2006-01-27 | 2007-05-16 | 广东省职业病防治院 | Movable contamination test device realtime controlled by photoelectric detection |
| CN101093218A (en) * | 2007-07-27 | 2007-12-26 | 中国建筑科学研究院 | Large-particle-size aerosol generating method and device for air filter efficiency test |
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| CN102890026A (en) | 2013-01-23 |
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Address after: 200062 room 2004-C, Wuning Road, Shanghai, Putuo District, 509 Co-patentee after: Shanghai Chemical Research Institute Co., Ltd. Patentee after: Shanghai Tianke Chemical Detection Co., Ltd. Address before: 200062 room 2004-C, Wuning Road, Shanghai, Putuo District, 509 Co-patentee before: Shanghai Research Institute of Chemical Industry Patentee before: Shanghai Tianke Chemical Detection Co., Ltd. |
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Address after: 200062 6th Floor, 252 Building, 345 Yunling East Road, Putuo District, Shanghai Co-patentee after: Shanghai Chemical Research Institute Co., Ltd. Patentee after: Shanghai Chemical Institute Testing Co., Ltd. Address before: 200062 2004-C room, No. 509, Wuning Road, Shanghai, Putuo District Co-patentee before: Shanghai Chemical Research Institute Co., Ltd. Patentee before: Shanghai Tianke Chemical Detection Co., Ltd. |