CN107990928A - Detection method, system and the device of the physical efficiencies of flcating germ sampling head sampling - Google Patents
Detection method, system and the device of the physical efficiencies of flcating germ sampling head sampling Download PDFInfo
- Publication number
- CN107990928A CN107990928A CN201711172046.1A CN201711172046A CN107990928A CN 107990928 A CN107990928 A CN 107990928A CN 201711172046 A CN201711172046 A CN 201711172046A CN 107990928 A CN107990928 A CN 107990928A
- Authority
- CN
- China
- Prior art keywords
- sampling head
- particle
- sampling
- particulate matter
- aerosol
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
Abstract
The invention discloses a kind of detection method of the physical efficiencies of flcating germ sampling head sampling, including：Foundation monodisperse particles thing aerosol generating device, produces the particulate matter standard particle of specified particle diameter；Blank sampling head valve is opened, closes tested sampling head valve, measures the first particle concentration of the particulate matter standard particle in the aerosol test chamber after the collection of blank sampling head；The tested sampling head valve is opened, closes the blank sampling head valve, measures the second particle concentration of the particulate matter standard particle in the aerosol test chamber after being tested sampling head collection；First particle concentration and second particle concentration are passed into default physical efficiencies calculation formula, obtain the physical efficiencies of tested sampling head sampling.Above-mentioned method, avoids culture bacterium, sampling period length, detection environmental condition is harsh, and humiture requires the problem of high.
Description
Technical field
The present invention relates to bio-safety detection technique field, more particularly to the inspection of the physical efficiencies of flcating germ sampling head sampling
Survey method, system and device.
Background technology
Air microorganism sampler is used exclusively for the sampling instrument of collection microbes in air, it is sampled based on Anderson
Principle, air is extracted by certain flow, makes the microorganism particle accelerating impact in air-flow to nutrient agar culture dish surface, through training
Support and form macroscopic bacterium colony, count clump count and microbes in air concentration is calculated according to sampling volume.Air microbe
Sampler can be used for monitoring microbiological indicator in normal air environment and pure air environment.Normal air environment is monitored to use
Air microorganism sampler generally use six grades of Andersen samplers；The air that microorganism uses in monitoring pure air environment
Microorganism sampler generally uses level V Andersen sampler, such domestic air microorganism sampler is commonly referred to as flcating germ
Air sampler.
The sampling physical efficiencies of borne bacteria sampler are the most important indexs of the instrument, and the index is on the one hand by sampling flow shadow
Ring, on the one hand influenced by sampling head aperture size.The calibrating standard of existing air microorganism sampler, bacterium living is doped to
In monodisperse particles thing, bacterium specific absorption on particulate matter is allowed, then be utilized respectively membrane filtration sampler and tested microorganism is adopted
Sample device is acquired particulate matter aerosol, by the way that the bacterium for collecting particulate matter is cultivated and counted, so as to extrapolate
The sampling physical efficiencies of sampling head.Since this method needs to cultivate bacterium, sampling period length, has harm, carefully to environment and human body
The degree of viability of bacterium and the adsorptivity on particulate matter, can influence testing result accuracy, and in order to ensure as far as possible bacterium into
Living, detection environmental condition is harsh, and humiture requires high.
The content of the invention
In view of this, detection method, system and the device of the physical efficiencies sampled the present invention provides flcating germ sampling head,
Need to cultivate bacterium to solve existing physical efficiencies detection method, sampling period length, has harm to environment and human body, bacterium
Degree of viability and the adsorptivity on particulate matter, can influence testing result accuracy, and in order to ensure surviving for bacterium as far as possible, examine
It is harsh to survey environmental condition, humiture requires the problem of high.Concrete scheme is as follows：
A kind of detection method of the physical efficiencies of flcating germ sampling head sampling, including：
Foundation monodisperse particles thing aerosol generating device, produces the particulate matter standard particle of specified particle diameter；
Blank sampling head valve is opened, closes tested sampling head valve, the gas measured after the collection of blank sampling head is molten
First particle concentration of the particulate matter standard particle in glue test chamber；
The tested sampling head valve is opened, closes the blank sampling head valve, measurement is gathered by tested sampling head
Second particle concentration of the particulate matter standard particle in aerosol test chamber afterwards；
First particle concentration and second particle concentration are passed into default physical efficiencies calculation formula,
Obtain the physical efficiencies of tested sampling head sampling.
Above-mentioned method, it is preferred that specified particle diameter is one kind in 0.9 μm, 1.3 μm, 2 μm, 5 μm and 13 μm.
Above-mentioned method, it is preferred that the method for producing the particulate matter standard grain of specified particle diameter can be pre-synthesis method, vibration
One kind in hole monodisperse aerosol genetic method and condensation nuclear particle genetic method.
Above-mentioned method, it is preferred that further include：
The culture dish of oiling culture medium is placed below blank sampling head.
Above-mentioned method, it is preferred that further include：
It is default nominal operation flow to adjust sampling flow according to flow controller.
Above-mentioned method, it is preferred that further include：
Foundation particle diameter spectrometer, detects the particle diameter of the particulate matter standard particle；
Record the correspondence of the particle diameter and the tested sampling head physical efficiencies.
Above-mentioned method, it is preferred that further include：
Particulate matter detector probe is installed in the aerosol test chamber, detects the aerosol test chamber endoparticle thing
Concentration.
A kind of detecting system of flcating germ sampling head sampling physical efficiencies, including：
Generation module, for according to monodisperse particles thing aerosol generating device, producing the particulate matter standard of specified particle diameter
Particle；
First measurement module, for opening blank sampling head valve, closes tested sampling head valve, measures and adopted by blank
First particle concentration of the particulate matter standard particle in aerosol test chamber after the collection of sample head；
Second measurement module, for opening the tested sampling head valve, closes the blank sampling head valve, measurement warp
Cross the second particle concentration of the particulate matter standard particle in the aerosol test chamber after tested sampling head collection；
Computing module, for first particle concentration and second particle concentration to be passed to default physics
Efficiency calculation formula, obtains the physical efficiencies of tested sampling head sampling.
A kind of detection device of flcating germ sampling head sampling physical efficiencies, including：Unimolecule aerosol generating device, it is dry
Pipe, aerosol test chamber, blank sampling head, is tested sampling head, the first valve, the second valve, particle diameter spectrometer, filter membrane, flow control
Device and sampling pump processed, wherein,
The unimolecule aerosol generating device, for producing the particulate matter standard particle of specified particle diameter；
The drying tube, for the particulate matter standard grain of the specified particle diameter produced to the unimolecule aerosol generating device
Son is dried；
The aerosol test chamber, for storing the particulate matter standard particle to be detected；
The blank sampling head, for gathering passage corresponding with the blank sampling head in the aerosol test chamber
Concentration；
The tested sampling head, gathers the dense of passage corresponding with the tested sampling head in the aerosol test chamber
Degree；
First valve, for controlling opening and the closing of the blank sampling head；
Second valve, for controlling opening and the closing of the tested sampling head；
The particle diameter spectrometer, for measuring the particle diameter of the particulate matter standard particle in the aerosol test chamber；
The filter membrane, for filtering the particulate matter standard particle；
The flow controller, for controlling the flow velocity of the aerosol detection intracavity gas；
The sampling pump, for controlling sampling flow.
Above-mentioned device, it is preferred that further include：
Dust instrument, for detecting the dust concentration in the aerosol test chamber.
Compared with prior art, the present invention includes advantages below：
The invention discloses the detection method of the physical efficiencies of flcating germ sampling head sampling, including：According to monodisperse particles
Thing aerosol generating device, produces the particulate matter standard particle of specified particle diameter；Blank sampling head valve is opened, closes tested sampling
Head valve door, measures the first particulate matter of the particulate matter standard particle in the aerosol test chamber after the collection of blank sampling head
Concentration；The tested sampling head valve is opened, closes the blank sampling head valve, is measured after tested sampling head collection
Second particle concentration of the particulate matter standard particle in aerosol test chamber；By first particle concentration and described
Two particle concentrations pass to default physical efficiencies calculation formula, obtain the physical efficiencies of tested sampling head sampling.Above-mentioned
Method, avoids culture bacterium, sampling period length, detection environmental condition is harsh, and humiture requires the problem of high.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of detection method flow of the physical efficiencies of flcating germ sampling head sampling disclosed by the embodiments of the present invention
Figure；
Fig. 2 is the detecting system structural frames that a kind of flcating germ sampling head disclosed by the embodiments of the present invention samples physical efficiencies
Figure；
Fig. 3 is the structure of the detecting device frame that a kind of flcating germ sampling head disclosed by the embodiments of the present invention samples physical efficiencies
Figure.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
The present invention provides a kind of detection method of the physical efficiencies of flcating germ sampling head sampling, the flcating germ
(airborne microbe) refers to the aerial viable microbial particle of collection suspension, by special culture medium, suitable
Visible clump count is arrived in breeding under growth conditions.The detection method is applied to the detection of flcating germ sampling head sampling physical efficiencies
During, the executive agent of the detection method can be that borne bacteria sampler sampling head samples physics efficiency detection device.Institute
The flow chart of detection method is stated, as shown in Figure 1, including step：
S101 foundation monodisperse particles thing aerosol generating devices, produce the particulate matter standard particle of specified particle diameter；
In the embodiment of the present invention, the particle diameter of the particulate matter standard particle can be 0.9 μm, 1.3 μm, 2 μm, 5 μm and 13 μ
One kind in m.
S102, open blank sampling head valve, closes tested sampling head valve, measures after the collection of blank sampling head
First particle concentration of the particulate matter standard particle in aerosol test chamber；
In the embodiment of the present invention, further include, the culture dish for scribbling culture medium is placed below blank sampling head.
S103, open the tested sampling head valve, closes the blank sampling head valve, measurement is by tested sampling head
Second particle concentration of the particulate matter standard particle in aerosol test chamber after collection；
S104, pass to default physical efficiencies by first particle concentration and second particle concentration and calculate
Formula, obtains the physical efficiencies of tested sampling head sampling.
The default calculation formula is：
Wherein, the physical efficiencies of P-tested sampling head sampling
C1- the first particle concentration
C2- the second particle concentration
The invention discloses a kind of detection method of the physical efficiencies of flcating germ sampling head sampling, including：According to single dispersing
Particulate matter aerosol generating device, produces the particulate matter standard particle of specified particle diameter；Blank sampling head valve is opened, is closed tested
Sampling head valve, measures in the aerosol test chamber after the collection of blank sampling head first of the particulate matter standard particle
Grain thing concentration；The tested sampling head valve is opened, closes the blank sampling head valve, measurement is gathered by tested sampling head
Second particle concentration of the particulate matter standard particle in aerosol test chamber afterwards；By first particle concentration and institute
State the second particle concentration and pass to default physical efficiencies calculation formula, obtain the physical efficiencies of tested sampling head sampling.On
The method stated, avoids culture bacterium, sampling period length, detection environmental condition is harsh, and humiture requires the problem of high.
The detection method of the physical efficiencies of flcating germ sampling head sampling provided by the invention, by monitoring different-grain diameter particle
The change of particle concentration after sampling head, obtains physics collecting efficiency of the sampling head to different-grain diameter particle, so as to judge
Whether sampling head meets the requirements.
The principle of detection method of the present invention is：Nominal operation of the first adjusting apparatus sampler flow to borne bacteria sampler
Flow, the specification of the basis of design borne bacteria sampler of the nominal operation flow, preferred 100L/ in the embodiment of the present invention
Min, recycles monodisperse particles thing aerosol generating device, produces 0.9 μm of particle diameter, 1.3 μm, 2 μm, 5 μm, 13 μm of single dispersing
Standard particle, the change feelings of different particles particle concentration before and after by borne bacteria sampler sampling head are checked using particle diameter spectrometer
Condition, calculates the sampling physical efficiencies of instrument.
In the embodiment of the present invention, stent is installed below sampling head, the culture for scribbling culture medium is placed on the stent
Ware, for being trapped to impinging upon particles above thing.
In the embodiment of the present invention, borne bacteria sampler sampling head samples the detection method of physical efficiencies, includes the following steps：
(1) monodisperse particles thing aerosol generating device, produces the monodisperse particles thing aerosol that predetermined size is, then passes through
Cross after diffusion drying tube is dried, and the further mixed diluting of dry diluent gas, into particulate matter aerosol test chamber.Production
Raw particle concentration is not less than 300L/min in 105CFU/mL or so, the gas flow into detection storehouse.
(2) blank sampling head lower valve is opened, and tested sampling head lower valve is closed.Adjust sampling pump so that adopt
Sample flow is metered flow.Detection enters the particle concentration of physical efficiencies detection device, record particle size range covering the at this time
One passage, records its concentration value, continuous to measure 3 times, is averaged and is denoted as C1.
(3) blank sampling lower valve is closed, and inspection sampling head lower valve is opened.Adjust sampling pump so that sampling
Flow is metered flow.Detection enters the particle concentration of physical efficiencies detection device, record particle size range covering second at this time
Passage, record its concentration value, continuous measurement 3 times, is denoted as C2.Wherein described first passage and the second channel are same logical
Road.
(4) according to formula (1), continuously measurement three times, takes the average value of P values three times, as last inspection result.If
50%≤P≤90%, illustrates that the sampling physical efficiencies of sampling head are qualified.
One particle monitoring instrument probe can be installed in step (3) and step (4), in aerosol test chamber, for supervising
Survey the change of test chamber endoparticle thing concentration in step 3 and step 4, it is desirable to which particle concentration change is no more than ± 5%.
In step (3) and step (4), by other openings in aerosol test chamber, go out outdoor by filter membrane heel row；Profit
Keep test chamber identical with external pressure with the opening, avoid intracavitary from producing positive pressure or negative pressure appearance and testing result is produced
Influence.
In above-mentioned detection method, in aerosol test chamber, the particulate matter direction of motion from top to bottom, aerosol movement velocity
No more than 0.4m/s.Accumulated in two Sampling Interfaces below a pipeline, inside have one sampling pipe, its other end with
Particle diameter spectrometer connects.
The detection method of borne bacteria sampler sampling head sampling physical efficiencies according to the present invention, passes through sampling head sample contents
The detecting system of efficiency is managed, using by before and after sampling head, the change of particulate matter standard particle concentration, realizes sampling head to not
With the detection of particle sampling physical efficiencies, it is of great significance to the sampling physical efficiencies for evaluating borne bacteria sampler.
Using monodisperse particles thing aerosol generating device, it is 0.9 μm, 1.3 μm, 2 μm, 5 μm, 13 μm to produce particle diameter respectively
Standard particle, the particle for measuring different-grain diameter respectively measures concentration C 1 in blank sampling head, and after tested cutting head
Concentration C 2, obtains sampling physical efficiencies P and is shown in Table 1.
| Particle diameter (μm) | 0.9 | 1.3 | 2 | 5 | 13 |
| C1(CFU/mL) | 48562 | 47886 | 49252 | 45879 | 47215 |
| C2CFU/mL | 31915 | 20872 | 18348 | 8668 | 5535 |
| P (%) | 34.3 | 56.4 | 62.7 | 81.1 | 88.3 |
The standard particle physical efficiencies table of comparisons of 1 different-grain diameter of table
Compared with existing bacterial strain method of counting, borne bacteria sampler sampling head sampling physical efficiencies provided by the invention
The advantages of detection method and its detecting system, is：
It is not related to the culture, sampling and technology of bacterial strain, avoids interference of the bacterium to environment and to testing staff's human body
Harm.
By detection of the particle diameter spectrometer to particle concentration, avoid and adsorbed by bacterial strain on particulate matter, then pass through culture
Clump count come the anti-arresting efficiency for calculating particulate matter and sample physical efficiencies, simplify testing process.
In existing method, air microorganism sampler sampling efficiency calibration storehouse is required it is high, in storehouse temperature be maintained at (22 ±
2) DEG C, relative humidity is maintained at (50 ± 10) %, and particulate matter aerosol test chamber is not strict with humiture.
Existing method is related to the culture of bacterial strain, and detection cycle needs the time of several days；And this method is not related to strain culturing,
The detection same day can go out as a result, improving detection efficiency.
Existing method is not related to the influence of the survival rate and adsorption rate of bacterial strain to testing result, is directly examined using particle diameter spectrometer
The change of particle concentration, improves testing result accuracy before and after survey sampling head.
Corresponding with above-mentioned detection method, present invention also offers a kind of inspection of flcating germ sampling head sampling physical efficiencies
Examining system.The structure diagram of the system as indicated with 2, including：
Generation module 201, the first measurement module 202, the second measurement module 203 and computing module 204.
Wherein,
The generation module 201, for according to monodisperse particles thing aerosol generating device, producing the particle of specified particle diameter
Thing standard particle；
First measurement module 202, for opening blank sampling head valve, closes tested sampling head valve, measurement warp
Cross the first particle concentration of the particulate matter standard particle in the aerosol test chamber after the collection of blank sampling head；
Second measurement module 203, for opening the tested sampling head valve, closes the blank sampling head valve
Door, the second particulate matter for measuring the particulate matter standard particle in the aerosol test chamber after being tested sampling head collection are dense
Degree；
The computing module 204, it is pre- for first particle concentration and second particle concentration to be passed to
If physical efficiencies calculation formula, obtain the physical efficiencies of tested sampling head sampling.
The invention discloses a kind of detecting system of flcating germ sampling head sampling physical efficiencies, including：According to single dispersing
Grain thing aerosol generating device, produces the particulate matter standard particle of specified particle diameter；Blank sampling head valve is opened, closes tested adopt
Sample head valve door, measures the first particle of the particulate matter standard particle in the aerosol test chamber after the collection of blank sampling head
Thing concentration；The tested sampling head valve is opened, closes the blank sampling head valve, is measured after tested sampling head collection
Aerosol test chamber in the particulate matter standard particle the second particle concentration；By first particle concentration and described
Second particle concentration passes to default physical efficiencies calculation formula, obtains the physical efficiencies of tested sampling head sampling.It is above-mentioned
System, avoid culture bacterium, sampling period length, detection environmental condition is harsh, and humiture requires the problem of high.
Present invention also offers the detection device of flcating germ sampling head sampling physical efficiencies, including：Unimolecule aerosol is sent out
Generating apparatus, drying tube, aerosol test chamber, blank sampling head, tested sampling head, the first valve, the second valve, particle diameter spectrometer,
Filter membrane, flow controller and sampling pump, the structure diagram of described device are as shown in Figure 3.
The unimolecule aerosol generating device, for producing the particulate matter standard particle of specified particle diameter；
The drying tube, for the particulate matter standard grain of the specified particle diameter produced to the unimolecule aerosol generating device
Son is dried；
The aerosol test chamber, for storing the particulate matter standard particle to be detected；
The blank sampling head, for gathering passage corresponding with the blank sampling head in the aerosol test chamber
Concentration；
The tested sampling head, gathers the dense of passage corresponding with the tested sampling head in the aerosol test chamber
Degree；
First valve, for controlling opening and the closing of the blank sampling head；
Second valve, for controlling opening and the closing of the tested sampling head；
The particle diameter spectrometer, for measuring the particle diameter of the particulate matter standard particle in the aerosol test chamber；
The filter membrane, for filtering the particulate matter standard particle；
The flow controller, for controlling the flow velocity of the aerosol detection intracavity gas；
The sampling pump, for controlling sampling flow.
Above-mentioned device, it is preferred that further include：
Dust instrument, for detecting the dust concentration in the aerosol test chamber.
It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment weight
Point explanation is all difference with other embodiment, between each embodiment identical similar part mutually referring to.
For device class embodiment, since it is substantially similar to embodiment of the method, so description is fairly simple, related part ginseng
See the part explanation of embodiment of the method.
Finally, it is to be noted that, in the present invention, relational terms such as first and second and the like are used merely to
Distinguish one entity or operation from another entity or operation, without necessarily requiring or implying these entities or behaviour
There are any actual relationship or order between work.Moreover, term " comprising ", "comprising" or its any other variant
Non-exclusive inclusion is intended to, so that process, method, article or equipment including a series of elements not only include
Those key elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic key element of person's equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", not
Also there are other identical element in the process, method, article or apparatus that includes the element for exclusion.
The foregoing description of the disclosed embodiments, enables those skilled in the art to realize or use the present invention.To this
A variety of modifications of a little embodiments will be apparent for a person skilled in the art, and the general principles defined herein can
Without departing from the spirit or scope of the present invention, to realize in other embodiments.Therefore, the present invention will not be limited
The embodiments shown herein is formed on, and is to fit to consistent with the principles and novel features disclosed herein most wide
Scope.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
- A kind of 1. detection method of the physical efficiencies of flcating germ sampling head sampling, it is characterised in that including：Foundation monodisperse particles thing aerosol generating device, produces the particulate matter standard particle of specified particle diameter；Blank sampling head valve is opened, closes tested sampling head valve, measures the aerosol inspection after the collection of blank sampling head Survey the first particle concentration of particulate matter standard particle described in intracavitary；The tested sampling head valve is opened, closes the blank sampling head valve, is measured after tested sampling head collection Second particle concentration of the particulate matter standard particle in aerosol test chamber；First particle concentration and second particle concentration are passed into default physical efficiencies calculation formula, obtained The physical efficiencies of tested sampling head sampling.
- 2. according to the method described in claim 1, it is characterized in that, specified particle diameter is 0.9 μm, 1.3 μm, 2 μm, 5 μm and 13 μm In one kind.
- 3. according to the method described in claim 1, it is characterized in that, the method for producing the particulate matter standard grain of specified particle diameter can be with For pre-synthesis method, vibration hole monodisperse aerosol genetic method and condense one kind in nuclear particle genetic method.
- 4. according to the method described in claim 1, it is characterized in that, further include：The culture dish of oiling culture medium is placed below blank sampling head.
- 5. according to the method described in claim 1, it is characterized in that, further include：It is default nominal operation flow to adjust sampling flow according to flow controller.
- 6. according to the method described in claim 1, it is characterized in that, further include：Foundation particle diameter spectrometer, detects the particle diameter of the particulate matter standard particle；Record the correspondence of the particle diameter and the tested sampling head physical efficiencies.
- 7. according to the method described in claim 1, it is characterized in that, further include：Particulate matter detector probe is installed in the aerosol test chamber, it is dense to detect the aerosol test chamber endoparticle thing Degree.
- A kind of 8. detecting system of flcating germ sampling head sampling physical efficiencies, it is characterised in that including：Generation module, for according to monodisperse particles thing aerosol generating device, producing the particulate matter standard particle of specified particle diameter；First measurement module, for opening blank sampling head valve, closes tested sampling head valve, blank sampling head is passed through in measurement First particle concentration of the particulate matter standard particle in aerosol test chamber after collection；Second measurement module, for opening the tested sampling head valve, closes the blank sampling head valve, quilt is passed through in measurement Survey the second particle concentration of the particulate matter standard particle in the molten test chamber of gas after sampling head collection；Computing module, for first particle concentration and second particle concentration to be passed to default physical efficiencies Calculation formula, obtains the physical efficiencies of tested sampling head sampling.
- A kind of 9. detection device of flcating germ sampling head sampling physical efficiencies, it is characterised in that including：Unimolecule aerosol occurs Device, drying tube, aerosol test chamber, blank sampling head, is tested sampling head, the first valve, the second valve, particle diameter spectrometer, filter Film, flow controller and sampling pump, wherein,The unimolecule aerosol generating device, for producing the particulate matter standard particle of specified particle diameter；The drying tube, for the particulate matter standard particle of specified particle diameter that is produced to the unimolecule aerosol generating device into Row drying；The aerosol test chamber, for storing the particulate matter standard particle to be detected；The blank sampling head, for gathering the dense of passage corresponding with the blank sampling head in the aerosol test chamber Degree；The tested sampling head, gathers the concentration of passage corresponding with the tested sampling head in the aerosol test chamber；First valve, for controlling opening and the closing of the blank sampling head；Second valve, for controlling opening and the closing of the tested sampling head；The particle diameter spectrometer, for measuring the particle diameter of the particulate matter standard particle in the aerosol test chamber；The filter membrane, for filtering the particulate matter standard particle；The flow controller, for controlling the flow velocity of the aerosol detection intracavity gas；The sampling pump, for controlling sampling flow.
- 10. device according to claim 9, it is characterised in that further include：Dust instrument, for detecting the dust concentration in the aerosol test chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711172046.1A CN107990928A (en) | 2017-11-22 | 2017-11-22 | Detection method, system and the device of the physical efficiencies of flcating germ sampling head sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711172046.1A CN107990928A (en) | 2017-11-22 | 2017-11-22 | Detection method, system and the device of the physical efficiencies of flcating germ sampling head sampling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107990928A true CN107990928A (en) | 2018-05-04 |
Family
ID=62032567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711172046.1A Pending CN107990928A (en) | 2017-11-22 | 2017-11-22 | Detection method, system and the device of the physical efficiencies of flcating germ sampling head sampling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107990928A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991133A (en) * | 2019-05-17 | 2019-07-09 | 中国科学院化学研究所 | A kind of nanoparticles chemical constituent detection system and detection method |
| CN113959780A (en) * | 2021-09-14 | 2022-01-21 | 中国人民解放军军事科学院军事医学研究院 | Method for evaluating gas-to-liquid sampling efficiency of aerosol sampler |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101466437A (en) * | 2006-04-12 | 2009-06-24 | Cl.Com有限公司 | Evaluation methodology of the protection characteristics of personal protective equipments against biological agents |
| CN104748994A (en) * | 2015-03-31 | 2015-07-01 | 中国科学院合肥物质科学研究院 | PM2.5 cutter cutting efficiency detection device and detection method thereof |
| CN105115870A (en) * | 2015-09-17 | 2015-12-02 | 清华大学 | System and method for calibrating micron-grade aerosol measuring instrument |
| CN205420414U (en) * | 2015-12-22 | 2016-08-03 | 广东环凯微生物科技有限公司 | Plankton sample thief |
| CN205506642U (en) * | 2015-12-15 | 2016-08-24 | 南京先进激光技术研究院 | Performance detection device of real -time airborne viable particles calculating instrument |
| CN106370451A (en) * | 2016-11-08 | 2017-02-01 | 张家港朗亿机电设备有限公司 | Dust cutter calibration system and calibration method therefor |
| CN106769729A (en) * | 2016-12-28 | 2017-05-31 | 中国计量科学研究院 | PM2.5 cutter cuts characteristic detection device and method |
| CN206489036U (en) * | 2016-12-28 | 2017-09-12 | 中国计量科学研究院 | PM2.5 quality and concentration monitor calibrating installations |
-
2017
- 2017-11-22 CN CN201711172046.1A patent/CN107990928A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101466437A (en) * | 2006-04-12 | 2009-06-24 | Cl.Com有限公司 | Evaluation methodology of the protection characteristics of personal protective equipments against biological agents |
| US20090246823A1 (en) * | 2006-04-12 | 2009-10-01 | Cl.Com S.R.L. | Evaluation methodology of the protection characteristics of personal protective equipments against biological agents |
| CN104748994A (en) * | 2015-03-31 | 2015-07-01 | 中国科学院合肥物质科学研究院 | PM2.5 cutter cutting efficiency detection device and detection method thereof |
| CN105115870A (en) * | 2015-09-17 | 2015-12-02 | 清华大学 | System and method for calibrating micron-grade aerosol measuring instrument |
| CN205506642U (en) * | 2015-12-15 | 2016-08-24 | 南京先进激光技术研究院 | Performance detection device of real -time airborne viable particles calculating instrument |
| CN205420414U (en) * | 2015-12-22 | 2016-08-03 | 广东环凯微生物科技有限公司 | Plankton sample thief |
| CN106370451A (en) * | 2016-11-08 | 2017-02-01 | 张家港朗亿机电设备有限公司 | Dust cutter calibration system and calibration method therefor |
| CN106769729A (en) * | 2016-12-28 | 2017-05-31 | 中国计量科学研究院 | PM2.5 cutter cuts characteristic detection device and method |
| CN206489036U (en) * | 2016-12-28 | 2017-09-12 | 中国计量科学研究院 | PM2.5 quality and concentration monitor calibrating installations |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991133A (en) * | 2019-05-17 | 2019-07-09 | 中国科学院化学研究所 | A kind of nanoparticles chemical constituent detection system and detection method |
| CN113959780A (en) * | 2021-09-14 | 2022-01-21 | 中国人民解放军军事科学院军事医学研究院 | Method for evaluating gas-to-liquid sampling efficiency of aerosol sampler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lindsley et al. | Sampling and characterization of bioaerosols | |
| Mandal et al. | Bioaerosols in indoor environment-a review with special reference to residential and occupational locations | |
| Scheff et al. | Indoor air quality in a middle school, Part II: Development of emission factors for particulate matter and bioaerosols | |
| CN103196775B (en) | The sampling of atmospheric particulate matter concentration by gravimetric on-line monitoring, meausring apparatus and method | |
| US6514721B2 (en) | Air sampler for pathogens and psychrometrics | |
| CN104569068B (en) | A kind of haze pollutant toxicity assessment method | |
| CN105353396B (en) | The method of closed loop partial integration rapid survey precipitation rate of radon | |
| CN104634717B (en) | A kind of microbial aerosol filtering material detection means and its application method | |
| CN109632022B (en) | Method for testing and estimating 24-hour average ventilation quantity of residential room | |
| CN107990928A (en) | Detection method, system and the device of the physical efficiencies of flcating germ sampling head sampling | |
| Griffiths et al. | The development of sampling methods for the assessment of indoor bioaerosols | |
| Abbasi et al. | The effect of incubation temperature and growth media on index microbial fungi of indoor air in a hospital building in Shiraz, Iran | |
| Hernandez | A combined fluorochrome method for quantitation of metabolically active and inactive airborne bacteria | |
| CN110320141A (en) | Device and method for detecting air supply quantity and purification performance of electric mask | |
| CN207516208U (en) | Gas-detecting device | |
| CN112608827A (en) | Air microorganism sampler sampling physical efficiency calibration bin, calibration system and method | |
| CN102866091A (en) | Particulate matter differential concentration measuring system based on beta ray method | |
| JP2007298469A (en) | Monitoring method for gaseous contaminant in air | |
| CN204999906U (en) | Air microorganism sampler | |
| Solomon | A simplified application of the Andersen sampler to the study of airborne fungus particles | |
| CN105176793B (en) | Aerosol bacterium rejection tests device and test method | |
| CN206960173U (en) | A kind of airborne particulate harvester | |
| Pogner et al. | A novel laminar-flow-based bioaerosol test system to determine biological sampling efficiencies of bioaerosol samplers | |
| CN110274800A (en) | A kind of soil incubation device and soil incubation and gas production method based on the device | |
| CN202793983U (en) | Particulate matter difference concentration measuring system based on oscillation balance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180504 |
|
| RJ01 | Rejection of invention patent application after publication |