CN207591829U - Microbial aerosol Dynamic - Google Patents
Microbial aerosol Dynamic Download PDFInfo
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- CN207591829U CN207591829U CN201721327500.1U CN201721327500U CN207591829U CN 207591829 U CN207591829 U CN 207591829U CN 201721327500 U CN201721327500 U CN 201721327500U CN 207591829 U CN207591829 U CN 207591829U
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- aerosol
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- monodisperse
- air filter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model is related to environmental quality detection technique fields, more particularly to a kind of microbial aerosol Dynamic, including intake air filter, monodisperse generator, flow controller, valve group, gas rectifying device, aerosol test storehouse, gas outlet air filter, air source and decontamination gas generator；The one end of one end of the intake air filter respectively with the monodisperse generator and flow controller is connect, the other end of monodisperse generator and flow controller is connect respectively with the valve group, the a port of valve group is connected with the gas rectifying device, gas rectifying device is connected with the top in aerosol test storehouse, it is divided into test section and standard regions two parts inside aerosol test storehouse, the bottom in the aerosol test storehouse is connect by the gas outlet air filter with the air source.It can then continue to provide the aerosol sample that concentration is stablized using dynamic method for generation, reduce the randomness of test result.
Description
Technical field
The utility model is related to environmental quality detection technique fields more particularly to a kind of microbial aerosol dynamic to fill
It puts.
Background technology
Microbial aerosol refers to the dispersion of the stabilization formed using microorganism as dispersate, gas as dispersant
System.Microbial aerosol largely exists in living environment, and people are usually by microbiological sampler by micro- life in environment
Object aerosol is fixed in liquid dispersant or is directly anchored on culture medium, and then completes to bacterial gas in a certain environment
The quantitative assessment of colloidal sol hazards identification.During the development of sampling apparatus, performance evaluation, parameter calibration etc., aerosol occurs
Device should be able to provide that type is single, is uniformly dispersed, the microbial aerosol sample that concentration is controllable.
Traditional aerosol generating device is typically that aerosol monodisperse generator is positioned in a confined space, is led to
It crosses the isostructural diffusion stirring action of built-in fans, loud speaker and completes mixing.The patent No.：201010101408.X disclose one
Kind dust aerosol generating device, which controls generation concentration by collecting the collective effect of powder tank and conveyer belt, by dust gas
Colloidal sol occurs into closed aerosol test experience storehouse.The patent No.：201510404938.4 hair can be stablized by disclosing one kind
The aerosol introducing that primary diverging is formed is equipped with by the system of raw dust aerosol, the system by the method for two-stage dilution
The aerosol stabilizing bin of loud speaker, emphatically improves the distributing homogeneity of disperse aerosol.
The shortcomings that above-mentioned several patents is：I. testing concentration of specimens in storehouse can change with test process.Original aerosol hair
Generating apparatus would generally will occur sample and inject in a closed bin room, and during the experiment, aerosol concentration of specimens can be held in storehouse
Continuous to reduce, test environment is difficult to realize be precisely controlled.
I i. concentration spaces are unevenly distributed.Even if multinomial patent discuss aerosol in generating process using secondary
The modes such as dilution, ultrasonic vibration ensure the uniformity of storehouse indoor aerosols spatial distribution, but since test fills in test process
Storehouse interior air-flow directed flow, inevitably results in the aggregation of storehouse indoor aerosols sample caused by putting.When having, multiple test devices are same
In Shi Cang during work, the concentration of each sampled point is difficult to keep consistent.
I i i. backgrounds aerosol interferes.Conventional aerosol generating means single-particle generation, Pipe transfer, mixing mistake
Cheng Zhonghui introduces environmental aerosols, even if test storehouse has self-purification function, each member inside generating system in static test environment
" hair dirt " phenomenon of device can also introduce a large amount of background aerosols.
Utility model content
The purpose of the utility model is to overcome the deficiency of above-mentioned technology, and a kind of microbial aerosol dynamic is provided and is occurred
Device, solve existing generating means the aerosol sample that is occurred, particularly microbial aerosol sample can not be carried out it is accurate
State control problem.
The utility model to achieve the above object, using following technical scheme：
A kind of microbial aerosol Dynamic, which is characterized in that sent out including intake air filter, monodisperse
Raw device, flow controller, valve group, gas rectifying device, aerosol are tested storehouse, gas outlet air filter, air source and are washed
Disappear gas generator；One end of the intake air filter respectively with the monodisperse generator and flow controller
One end connects, and the other end of the monodisperse generator and flow controller is connect respectively with the valve group, the valve group
A port connected with the gas rectifying device, the top in the gas rectifying device and the aerosol test storehouse connects
It is logical, one piece of partition board is vertically arranged in the aerosol test storehouse, aerosol is tested inside storehouse and is divided into test section and standard regions two
Part, the bottom in the aerosol test storehouse are connect by the gas outlet air filter with the air source.
Preferably, the decontamination gas generator is connect with a port of the valve group.
Preferably, the monodisperse generator choosing uses the porous generators of Co l l i son.
Preferably, the air source is adjustable fan.
Preferably, the gas rectifying device is axial flow blower.
Preferably, the decontamination gas generator is chlorine dioxide gas disinfection device.
The beneficial effects of the utility model are:(1) stability of aerosol sample is improved
Tradition occurs in test method, and test concentrations can change with test process.Then may be used using dynamic method for generation
With the aerosol sample that lasting offer concentration is stablized, the randomness of test result is reduced.
(2) master sample control is provided for test process
The present invention propose by traditional single test storehouse be divided into two can synchronously complete aerosol sample experiment
The symmetry of bin, bin and pipeline can ensure the sample state consistency in test section and standard regions, and mutually independent
Structure design can avoid the flow perturbation during synchronism detection, convenient for the development of control experiment.
(3) the true settling phase of aerosol is simulated
Microbial aerosol Dynamic should usually be arranged on low discharge working condition, it is only necessary to ensure the sample of supply
Flow is more than the sampling flow of test device, and uprush speed is smaller in the storehouse of aerosol test at this time (is more than sedimentation flow velocity 0-
1 order of magnitude), close to true aerosol deposition state.
(4) interference of background aerosol is reduced
In gas circuit occurs for aerosol dynamic, from entrance, that is, series connection high efficiency filter, prevent the aerosol in air from doing
It disturbs object and enters test environment.What is more important, since the sample in aerosol test storehouse is always in flow regime, Ke Yi great
It reduces to amplitude due to background interference caused by component hair dirt phenomenon in pipeline.
(5) the decontamination function of microbial aerosol
Biological decontamination bypass is designed in generating means, can be realized after microbial aerosol sample occurs to closing gas
The decontamination on road.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment of the present utility model is described in detail in preferred embodiment.
It should be noted that when element is referred to as " being fixedly arranged on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to the technology of the utility model
The normally understood meaning of technical staff in domain is identical.It is only in the term used in the description of the utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include
The arbitrary and all combination of one or more relevant Listed Items.The utility model is described in detail below in conjunction with the accompanying drawings
Concrete operating principle.
As shown in Figure 1, a kind of microbial aerosol Dynamic, sends out including intake air filter 1, monodisperse
Raw device 2, flow controller 3, valve group 4, gas rectifying device 5, aerosol test storehouse 8, gas outlet air filter 9, air source
10 and decontamination gas generator 11.Physical connection is carried out by airflow pipeline between each module, microbial aerosol dynamic is sent out
Generating apparatus, for constant-voltage power source, carries out suspension sample using monodisperse generator dispersion and forms monodisperse with air source 10
Aerosol sample, and pass through and adjust the control sample generation concentration of flow controller 3.The air source comes real it is preferable to use adjustable fan
It is existing, when required air flow rate is larger, air compressor and the cooperation of constant-pressure gas storage tank can also be used to realize and (be connected to gas to flow into
Mouth section).Aerosol sample sequentially through the pass segment of airflow pipeline, gas rectifying device 5 and expands under the driving of windstream
Section is dissipated, vortex turbulence rectification caused by wherein gas rectifying device 5 can will change due to pipeline structure is layer vertically downward
Stream finally forms in aerosol test storehouse 8 and stably settles sample.Microbial aerosol Dynamic is in air inlet
Mouthful and gas outlet connect respectively air filter, intake air filter 1 is used to filter out the impurity in air source, gas outlet air
Filter 9 prevents aerosol sample spilling from polluting.The junction of airflow pipeline pass segment and diffuser is provided with gas
Fairing avoids aerosol sample from forming vortex turbulence in pipeline.Aerosol test places sealing plate vertically in storehouse, by storehouse
Interior space is divided into 7 two parts of test section 6 and standard regions, can wherein be placed in test section and be evaluated equipment, such as microorganism is adopted
Sample device, dust instrument etc.；Standard device method, sedimentation, isokinetic sampling counting etc. can be used in standard regions, obtain test
Sample information is used for result reference.
After generation test terminates, to avoid occurring the cross jamming of different microorganisms generation, while sample gas is prevented
Flow tube road microbial contamination adds in biological decontamination bypass to realize to closing gas in microbial aerosol Dynamic
The decontamination on road.Biological decontamination bypass is connected with decontamination gas generator 11, after test, valve group 4 is fully open, opens
Decontamination gas generator 11 is opened, decontamination gas bleed sample gas flow, which occurs, using decontamination gas generator flows through pipeline, and realization is washed
Disappear the purpose of pipeline.
Microbial aerosol Dynamic is preferably placed in the operation room with gas laminar flow, is more preferably placed
In in high-level clean room, the personal safety of operator can be protected when biological leakage occurs during experimental test.
Intake air filter 1 and gas outlet air filter 9 in gas circuit are set as shown in Figure 1, need to meet pressure
Characteristic small, that filtering accuracy is high is lost to ensure final generation effect.It is preferable to use HEPA realizations.
Monodisperse generator 2 is it is preferable to use the porous generator realizations of Co l l i son, when generation bioaerosol grain size
When size is larger (2 microns or more), it can also be replaced using clinically common medicinal liquid atomizing device.
It is preferable to use the axial flow blowers that diameter is slightly less than tubing internal diameter for airflow commutating device 5.
Chlorine dioxide gas disinfection of the decontamination gas generator 11 disclosed in it is preferable to use patent 201110104819.9
Device.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, under the premise of the utility model principle is not departed from, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (6)
1. a kind of microbial aerosol Dynamic, which is characterized in that occur including intake air filter, monodisperse
Device, flow controller, valve group, gas rectifying device, aerosol test storehouse, gas outlet air filter, air source and decontamination
Gas generator；One end of the intake air filter respectively with the monodisperse generator and flow controller one
The other end of end connection, the monodisperse generator and flow controller is connect respectively with the valve group, the valve group
A port is connected with the gas rectifying device, and the gas rectifying device is connected with the top in aerosol test storehouse,
One piece of partition board is vertically arranged in the aerosol test storehouse, aerosol is tested inside storehouse and is divided into test section and standard regions two
Point, the bottom in the aerosol test storehouse is connect by the gas outlet air filter with the air source.
2. microbial aerosol Dynamic according to claim 1, which is characterized in that the decontamination gas occurs
Device is connect with a port of the valve group.
3. microbial aerosol Dynamic according to claim 1, which is characterized in that the monodisperse generator
Choosing uses the porous generators of Collison.
4. microbial aerosol Dynamic according to claim 1, which is characterized in that the air source is wind adjustable
Machine.
5. microbial aerosol Dynamic according to claim 1, which is characterized in that the gas rectifying device
For axial flow blower.
6. microbial aerosol Dynamic according to claim 2, which is characterized in that the decontamination gas occurs
Device is chlorine dioxide gas disinfection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721327500.1U CN207591829U (en) | 2017-10-16 | 2017-10-16 | Microbial aerosol Dynamic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721327500.1U CN207591829U (en) | 2017-10-16 | 2017-10-16 | Microbial aerosol Dynamic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207591829U true CN207591829U (en) | 2018-07-10 |
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ID=62756138
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721327500.1U Active CN207591829U (en) | 2017-10-16 | 2017-10-16 | Microbial aerosol Dynamic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207591829U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107754736A (en) * | 2017-10-16 | 2018-03-06 | 中国人民解放军军事医学科学院卫生学环境医学研究所 | Microbial aerosol Dynamic |
| CN111974321A (en) * | 2020-09-02 | 2020-11-24 | 青岛众瑞智能仪器有限公司 | Ultrasonic aerosol generator with turbulence protection gas circuit capable of generating in multiple paths |
-
2017
- 2017-10-16 CN CN201721327500.1U patent/CN207591829U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107754736A (en) * | 2017-10-16 | 2018-03-06 | 中国人民解放军军事医学科学院卫生学环境医学研究所 | Microbial aerosol Dynamic |
| CN107754736B (en) * | 2017-10-16 | 2024-06-04 | 中国人民解放军军事医学科学院卫生学环境医学研究所 | Microorganism aerosol dynamic generating device |
| CN111974321A (en) * | 2020-09-02 | 2020-11-24 | 青岛众瑞智能仪器有限公司 | Ultrasonic aerosol generator with turbulence protection gas circuit capable of generating in multiple paths |
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