CN204142699U - A kind of device for bioaerosol test - Google Patents
A kind of device for bioaerosol test Download PDFInfo
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- CN204142699U CN204142699U CN201420502146.1U CN201420502146U CN204142699U CN 204142699 U CN204142699 U CN 204142699U CN 201420502146 U CN201420502146 U CN 201420502146U CN 204142699 U CN204142699 U CN 204142699U
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Abstract
The utility model belongs to bio-safety experimental provision, relates to a kind of device for bioaerosol test.This device comprises physical environment analog module, gasoloid generation module, experimental cabin, particulate monitoring modular, data acquisition and control module.Physical environment analog module comprises wind powered generating devices, temperature generating arrangement, humidity generation device and radiation intensity generation device four parts, can produce the environmental parameter close with physical environment.The utility model can obtain strong pathogenic microorganism air (gasoloid) background biological characteristics and the propagation law basic data in physical environment safely and efficiently, form partial data chain, system under illustrating natural conditions strong pathogenic microorganism in atmosphere with temperature, humidity, wind speed, radiation intensity survival with decline rule, pathogenicity and propagation law, and can apply, for China's public safety provides powerful early warning to support in important units such as national scientific research, disease controls.
Description
Technical field
The utility model belongs to bio-safety experimental provision, relates to a kind of device for bioaerosol test, specifically refers to the aerosol transmission test unit of a kind of simulating natural environment wind-force, temperature, humidity and radiation intensity.
Background technology
Aerosol transmission is judgement infectious disease whether one of core index being classified as magnitude outburst public health incident, is many great, new important routes of transmission sending out burst infectious disease such as SARS, bird flu (H5N1, H7N9).At present, show great attention in the world, especially the U.S. to aerosolology research, gasoloid project be classified as " state key project ", correlation technique and equipment platform are comparatively perfect.Study the strict blockade of core technology implementation and technology management and control to such in the world, break up monopoly, demonstration also independent research meets the aerosol transmission risk assessment equipment of bio-safety requirement, is the active demand of China's pathogenic microorganism aerosolology research.
The device carrying out gasoloid evaluation study is at present a lot, but mostly simpler and easy, can only study aerosol transmission rule under single condition, and being difficult to reach can the actual requirement of simulating natural environment.This research is combined at Life Sci-Tech, prevention and control of diseases demand and instrument and equipment manufacture method, under bio-safety framework, build integrate environmental wind tunnel (environmental simulation) design, the pathogenic microorganism air (gasoloid) of automated information collection and verification experimental verification propagates risk assessment equipment.Judge that can the strong pathogenic microorganism such as SARS, highly pathogenic bird flu (H5N1, H7N9) be propagated in atmosphere early from the angle of early warning, people can be propagated into across kind, and even the great basic problem in science of human-to-human transmission, break foreign technology monopolization to block, for China's deadly infectious disease assessment evaluation, early warning and alert provide important basic research equipment.
The design concept of the utility model combining environmental wind-tunnel, airtight environment is formed with environmental wind tunnel and experimental cabin, aerosol generating device and monitoring device combine with experimental cabin well, achieve the artificial environment of Simulated gas colloidal sol circulation way of high simulation, high security, high controllability.This device can obtain strong pathogenic microorganism air (gasoloid) background biological characteristics and the propagation law basic data in physical environment safely and efficiently, form partial data chain, system under illustrating natural conditions strong pathogenic microorganism in atmosphere with temperature, humidity, wind speed, radiation intensity survival with decline rule, pathogenicity and propagation law, and can apply, for China's public safety provides powerful early warning to support in important units such as national scientific research, disease controls.
Utility model content
The utility model is for the deficiencies in the prior art, provide a kind of device for bioaerosol test, be a kind of can the very practical test unit of aerosol transmission rule under simulating natural environment condition, solve that existing apparatus simulated conditions are single, complex structure and other problems, having marketing potentiality well, is also pathogenic microorganism aerosol transmission rule and set up good platform across kind of a transmission capacity evaluation.
The technical scheme that the utility model technical solution problem adopts is as follows:
This aerosol transmission test unit comprises wind powered generating devices, experimental cabin, aerosol generator, particulate monitoring device and data acquisition and control module, primarily of power section, wind-force source, first diffuser, first turning, flow deflector, humidity controlling unit, aerofoil profile flow deflector, electrothermal tube, second diffuser, stable section, honeycomb, damping screen, contraction section, aerosol generator, high efficiency particulate air filter, experimental cabin, guidance panel, uviol lamp, long-sleeve glove, automatic sampling apparatus, pass-through box, sensor, 3rd diffuser, particulate monitoring device, second turning, the parts such as data collecting card and industrial computer form.
Wind powered generating devices: form wind powered generating devices by power section, wind-force source, the first diffuser, the first turning, the second diffuser, stable section, contraction section, the 3rd diffuser and the second turning, the two ends of wind powered generating devices are connected to the two ends of experimental cabin, the closed-loop path of air-flow is formed together with experimental cabin, the wind-force of 0 ~ 5m/s can be produced, be namely not more than three grades, nature with leeward; Set temperature generation device in first diffuser of wind powered generating devices, is made up of several electric heating tube groups, and optimum configurations is 0 ~ 40 DEG C (the common life temperature of nature), and each electric heating tube group comprises 8 aerofoil profile flow deflector and electrothermal tubes.In order to not affect the flow quality in whole flow field, be packaged in by electrothermal tube in aerofoil profile flow deflector, it is streamlined can reduce turbulence level to the full extent.
Second diffuser of wind powered generating devices arranges humidity generation device, is made up of humidifier and dehumidifier two parts, and the humidity parameter of setting is 10 ~ 90% (the common humidity ranges of nature).The adjustment of experimental cabin humidity is realized in airflow circulating process.
Radiation intensity generation device is set in experimental cabin, uniform 9 uviol lamps at experimental cabin top, and by the quantity of lamp that controls to turn on to regulate radiation intensity size, optimum configurations is 0 ~ 300mW/m
2(nature ultraviolet index less than 12 covers the ultraviolet irradiation intensity of most area on the earth) (during 9 lamp standard-sized sheets, experimental cabin bottom surface radiation intensity reaches maximal value 300mW/m
2.From I=W/St=P/S, the power of every uviol lamp is: P=nIS/ η=9 × 300mW/m
2× 4 π × 1.2m
2/ 75%=64W.Wherein, η is the efficiency that ultraviolet light passes organic glass).
Experimental cabin: experimental cabin comprises main cabin body, guidance panel, long-sleeve glove, pass-through box, automatic sampling apparatus, sensor.Experimental cabin operating surface is transparent material, can integral demounting, can carry out the aerosol transmission evaluation of 3.5m distance.Perforate on guidance panel, arranges long-sleeve glove and pass-through box.Automatic sampling apparatus accepts outside data acquisition and control module order and moves to target location with vertical direction in the horizontal direction, gathers the particulate of different spatial; The sensor that experimental cabin inside is arranged is used for Real-Time Monitoring temperature, humidity, wind-force and radiation intensity.
Aerosol generator: aerosol generator is connected with experimental cabin by closed conduct, the gasoloid that generation flow velocity is 1-4.2L/min, particle size is 0.5-20 μm, spray pattern can adopt the various ways such as instantaneous point source, continuous point source, continuously line source.
Particulate monitoring device: particulate monitoring device is connected to the automatic sampling apparatus in experimental cabin by closed conduct, the parameter index such as aerocolloidal particle diameter, concentration, dispersion degree in Real-Time Monitoring experimental cabin, the particulate physical parameter that real-time analysis collects.
Data acquisition and control module: data acquisition and control module comprise industrial computer and data collecting card, data collecting card is connected with the sensor in Laboratory Module.Industrial computer module can realize data and store and data processing, obtains data message by data collecting card, and automatically gather and store the environmental parameter simulated with process experimental cabin, pass to industrial computer, real-time analysis also adjusts.
The utility model realizes the simulation of physical environment in experimental cabin by control four environmental factors (wind-force, temperature, humidity, radiation intensity).Use for reference the design concept of environmental wind tunnel, adopt the form of closed backflow to produce stable laminar air flow.Axial fan drives air flowing, enters the first turning (90 °), realize the even variation of air-flow through the first diffuser (spread angle <5 °); Corner is provided with flow deflector, prevents airflow direction flip-flop from causing producing turbulent flow; By the second diffuser, air-flow enters stable section after even variation again; Stable section, built with honeycomb and damping screen, carries out even partition to air-flow, reduces turbulence level; Realize compression shaping (shrinkage ratio is 1:1.44) after entering contraction section, promote flow quality, obtain stably stratified flow wind (stream turbulence controls 0.2%); Laminar air flow, through HEPA high efficiency particulate air filter, to reduce the background concentration of biomone, improves air-flow cleanliness factor; After enter experimental cabin, equally HEPA high efficiency particulate air filter is set in experimental cabin exit, prevents the particulate in experimental cabin from overflowing; Air-flow through the 3rd diffuser and the second turning, realizes closed-loop path again.
A kind of device for bioaerosol test of the present utility model, can simulating natural environment well.The contraction section of cabin prime forms stably stratified flow air-flow, natural wind simulating by experiment; Heating pipe line and humidity controlling unit regulate air themperature and humidity; The high efficiency particulate air filter closed before and after return-flow structure and Laboratory Module ensure that bio-safety; Real-time online acquisition control device and particulate monitoring device can realize the real-time monitoring to aerosol state in Laboratory Module; Temperature, humidity, wind speed and radiation intensity sensor can factor of natural environment in monitoring experiment cabin in real time; Pass-through box (can independently sterilize) solves the safe transfer problem of required article in feed in animal feeding process, the pollution-free interpolation problem of drinking-water and experimentation;
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is experimental cabin schematic enlarged-scale view of the present utility model.
Embodiment
Specific embodiment of the utility model is described in detail below in conjunction with technical scheme and accompanying drawing.
As shown in Figure 1, this device comprises diffuser 3, first turning 5, wind-force source 2, first, flow deflector 6, humidity controlling unit 7, aerofoil profile flow deflector 8, electrothermal tube 9, second diffuser 10, stable section 11, honeycomb 12, damping screen 13, contraction section 14, aerosol generator 15, high efficiency particulate air filter 16, experimental cabin 17, guidance panel 18, uviol lamp 19, long-sleeve glove 20, automatic sampling apparatus 21, pass-through box 22, sensor 23, the 3rd diffuser 24, particulate monitoring device 25, second turning 26, data collecting card 27 and industrial computer 1.
Diffuser 3, first turning 5, wind-force source 2, first, flow deflector 6, second diffuser 10, stable section 11, honeycomb 12, damping screen 13 and contraction section 14 are formed jointly.
Aerofoil profile flow deflector 8 and electrothermal tube 9 form temperature generating arrangement jointly,
Experimental cabin comprises main cabin body, guidance panel 18, uviol lamp 19, long-sleeve glove 20, automatic sampling apparatus 21, pass-through box 22 and sensor 23.
Stable section comprises honeycomb 12 and damping screen 13.
During work, first opening blower fan, by regulating rotation speed of fan to control wind-force size, being stablized, uniform laminar air flow field; Open electrothermal tube, humidity controlling unit, uviol lamp again, regulate parameters to the required size of experiment.Open temp, humidity, wind-force, radiation intensity sensor, real-time monitoring environment parameter; Animal used as test is positioned in experimental cabin, normally feeds; Open aerosol generator, produce gasoloid; Carry out aerosol transmission experiment, open particulate monitoring device simultaneously, automatically gather aerosol sample and record data; Gather animal sample by experimental cabin operating surface, reached in Laboratory biosafety cabinet by pass-through box and carry out subsequent experimental.
Claims (1)
1. the device for bioaerosol test, this aerosol transmission test unit comprises wind powered generating devices, experimental cabin, aerosol generator, particulate monitoring device and data acquisition and control module, primarily of wind-force source, first diffuser, first turning, flow deflector, humidity controlling unit, aerofoil profile flow deflector, electrothermal tube, second diffuser, stable section, contraction section, aerosol generator, experimental cabin, guidance panel, uviol lamp, long-sleeve glove, automatic sampling apparatus, pass-through box, sensor, 3rd diffuser, particulate monitoring device, second turning, data collecting card and industrial computer composition, it is characterized in that,
Wind powered generating devices: form wind powered generating devices by wind-force source, the first diffuser, the first turning, the second diffuser, stable section, contraction section, the 3rd diffuser and the second turning, the two ends of wind powered generating devices are connected to the two ends of experimental cabin, form the closed-loop path of air-flow together with experimental cabin, the wind-force of 0 ~ 5m/s can be produced; Set temperature generation device in first diffuser of wind powered generating devices, is made up of several electric heating tube groups, and optimum configurations is 0 ~ 40 DEG C, and each electric heating tube group comprises 8 aerofoil profile flow deflector and electrothermal tubes; Second diffuser of wind powered generating devices arranges humidity generation device, is made up of humidifier and dehumidifier two parts, and the humidity parameter of setting is 10 ~ 90%;
Experimental cabin: radiation intensity generation device is set in experimental cabin, uniform 9 uviol lamps at experimental cabin top, and by the quantity of lamp that controls to turn on to regulate radiation intensity size, optimum configurations is 0 ~ 300mW/m
2; Experimental cabin comprises main cabin body, guidance panel, long-sleeve glove, pass-through box, automatic sampling apparatus, sensor; Experimental cabin operating surface is transparent material, can integral demounting, can carry out the aerosol transmission evaluation of 3.5m distance; Perforate on guidance panel, arranges long-sleeve glove and pass-through box; Automatic sampling apparatus accepts outside data acquisition and control module order and moves to target location with vertical direction in the horizontal direction, gathers the particulate of different spatial; The sensor that experimental cabin inside is arranged is used for Real-Time Monitoring temperature, humidity, wind-force and radiation intensity;
Aerosol generator: aerosol generator is connected with experimental cabin by closed conduct, the gasoloid that generation flow velocity is 1-4.2L/min, particle size is 0.5-20 μm, spray pattern can adopt instantaneous point source, continuous point source, continuously line source various ways;
Particulate monitoring device: particulate monitoring device is connected to the automatic sampling apparatus in experimental cabin by closed conduct, aerocolloidal particle diameter, concentration, dispersion parameter index in Real-Time Monitoring experimental cabin, the particulate physical parameter that real-time analysis collects;
Data acquisition and control module: data acquisition and control module comprise industrial computer and data collecting card, data collecting card is connected with the sensor in Laboratory Module; Industrial computer module can realize data and store and data processing, obtains data message by data collecting card, and automatically gather and store the environmental parameter simulated with process experimental cabin, pass to industrial computer, real-time analysis also adjusts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420502146.1U CN204142699U (en) | 2014-09-02 | 2014-09-02 | A kind of device for bioaerosol test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420502146.1U CN204142699U (en) | 2014-09-02 | 2014-09-02 | A kind of device for bioaerosol test |
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| Publication Number | Publication Date |
|---|---|
| CN204142699U true CN204142699U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420502146.1U Withdrawn - After Issue CN204142699U (en) | 2014-09-02 | 2014-09-02 | A kind of device for bioaerosol test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769811A (en) * | 2017-01-16 | 2017-05-31 | 北京大学 | A kind of air microbe tests consersion unit and application |
| CN106840577A (en) * | 2017-04-07 | 2017-06-13 | 中国环境科学研究院 | Wind-tunnel is demarcated in a kind of environmental simulation |
-
2014
- 2014-09-02 CN CN201420502146.1U patent/CN204142699U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769811A (en) * | 2017-01-16 | 2017-05-31 | 北京大学 | A kind of air microbe tests consersion unit and application |
| CN106840577A (en) * | 2017-04-07 | 2017-06-13 | 中国环境科学研究院 | Wind-tunnel is demarcated in a kind of environmental simulation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150204 Effective date of abandoning: 20170525 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150204 Effective date of abandoning: 20170525 |