CN106644883A - Mask sealing degree tester - Google Patents
Mask sealing degree tester Download PDFInfo
- Publication number
- CN106644883A CN106644883A CN201611107478.XA CN201611107478A CN106644883A CN 106644883 A CN106644883 A CN 106644883A CN 201611107478 A CN201611107478 A CN 201611107478A CN 106644883 A CN106644883 A CN 106644883A
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- Prior art keywords
- mouth mask
- particle
- unit
- adaptation
- fixedly connected
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- 238000007789 sealing Methods 0.000 title claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 143
- 238000001514 detection method Methods 0.000 claims abstract description 32
- 238000012360 testing method Methods 0.000 claims abstract description 15
- 230000006978 adaptation Effects 0.000 claims description 44
- 238000005070 sampling Methods 0.000 claims description 40
- 239000000523 sample Substances 0.000 claims description 35
- 238000005259 measurement Methods 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 125000003158 alcohol group Chemical group 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims 1
- 230000001681 protective effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 244000000010 microbial pathogen Species 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 208000006941 Laboratory Infection Diseases 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000010971 suitability test Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/084—Testing filters
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a mask sealing degree tester. The mask sealing degree tester is characterized by comprising a mask puncture assembly, a flow divider, a particle growth unit, a particle detection unit, an air extracting pump and a control unit, wherein the mask puncture assembly is fixedly connected with an inlet of a two-position and three-way solenoid valve and the other inlet of the two-position and three-way solenoid valve is communicated with the atmosphere; an outlet of the two-position and three-way solenoid valve is fixedly connected with the inlet at the bottom of the flow divider; the outlet at the top of the flow divider is fixedly connected with the inlet of the particle growth unit; the outlet of the particle growth unit is fixedly connected with the inlet of the particle detection unit for calculating particle number concentration; the outlet of the particle detection unit is fixedly connected with the inlet of a tee joint; the other outlet at the bottom of the flow divider is fixedly connected with the other inlet of the tee joint; the other outlet at the bottom of the flow divider is fixedly connected with the other inlet of the tee joint through an efficient filter; the outlet of the tee joint is fixedly connected with the air extracting pump through a flow meter; and the control unit is electrically connected with the two-position and three-way solenoid valve, the particle growth unit, the particle detection unit and the flow meter respectively and is used for calculating the mask sealing degree through the obtained particle number concentration. The mask sealing degree tester can be widely applied to testing on mask sealing degree.
Description
Technical field
The present invention is, with regard to a kind of mouth mask adaptation tester, to belong to various mouth masks (including medical protective mask and biology
Protective mask) testing permeability field.
Background technology
Lab assistant or medical personnel's infection are the mankind have a contest with pathogenic microorganism in eternal presence contradiction, root
Show according to the research of the laboratory infection to unknown cause, most of researchers are considered the infectivity that pathogenic microorganism is formed
Aerosol spreads in air, the selection of the indoor staff's protective gear of experiment and it is proper use of be to avoid lab assistant from infecting
Effective way.
Aeration resistance and load capacity are to weigh the important indicator of respiratory protection equipment wearing comfort and service life,
And really reflect its barrier propterty is face type adaptation, WHO, USA and EU require the reality for carrying out pathogenic microorganism operation
Test room personnel wear respiratory protection equip when, it is necessary to carry out adaptation test, according to adaptation test result, select be adapted to
In the product of experimenter oneself model.China's GB《The selection of protective respirator, operation and maintenance》In clearly propose "
When every time using protective respirator, should carry out first wearing airtight test using the personnel of adaptation mask, it has been determined that make
With air-tightness good between personnel's face and mask ",《Laboratory biosafety General Requirement》Regulation is anti-using individual breathing
Shield equipment, should do individual suitability test,《Medical protective mask technical requirements》The face type of clear stipulaties medical protective mask is fitted
The right factor is more than 100, and defines detailed quantitative determination method.Require despite the presence of above-mentioned detection, but using existing
Quantitative detecting method, take time and effort and testing result be inaccurate, and still close without special mouth mask in currently available technology
Right tester is accurately tested mouth mask adaptation.
The content of the invention
For the problems referred to above, it is an object of the invention to provide a kind of accurate and time saving and energy saving mouth mask adaptation test of measurement
Instrument.
For achieving the above object, the present invention takes technical scheme below：A kind of mouth mask adaptation tester, its feature exists
In the tester includes：One is used to gather the mouth mask piercing assembly of gas in mouth mask to be measured；One or two position-3-way solenoid valve, it is described
One air inlet of two-bit triplet magnetic valve is fixedly connected the mouth mask piercing assembly, another air inlet of the two-bit triplet magnetic valve
Mouth connection air；One current divider, the air inlet of the shunt base one connects the gas outlet of the two-bit triplet magnetic valve；One uses
In the particle growth unit that the small particle in gas is grown to bulky grain thing, the bottom inlet of the particle growth unit is consolidated
Surely the splitter overhead outlet is connected；One is dense for calculating gas particle Particle density or surrounding air population in mouth mask to be measured
The detection of particles unit of degree, the bottom inlet of the detection of particles unit is fixedly connected the particle growth unit by nozzle
Top exit；One threeway a, import of the threeway is fixedly connected the top exit of the detection of particles unit, the threeway
Another import is fixedly connected another gas outlet of the shunt base；One aspiration pump, the aspiration pump is fixedly connected the threeway
Outlet；And, a control unit, described control unit be electrically connected the two-bit triplet magnetic valve, particle growth unit,
Detection of particles unit and flowmeter.
Preferably, the mouth mask piercing assembly includes the first puncture component, the second puncture component, probe and sampling probe component,
Wherein, the sampling probe component includes sampling probe and sampling sealing ring；Described first puncture component the inner is detachably connected institute
Probe is stated, the probe is fixed and wears the sampling probe, and described second puncture component the inner is fixedly connected the sampling sealing ring,
The sampling probe also connects an air inlet of the two-bit triplet magnetic valve, when using, the probe by the sampling pipe
Pass mouth mask to be measured and insert second puncture component and be fixed.
Preferably, a high efficiency particulate air filter is fixedly installed between the current divider and the threeway.
Preferably, the current divider adopts inverted T-shaped structure.
Preferably, flow meters are set between the aspiration pump and threeway outlet.
Preferably, the particle growth unit is divided into cold end and hot junction, and the cold end is located on the particle growth unit
Side, the hot junction is located at particle growth unit lower section, and the hot junction is provided with the alcohol core for being saturated with alcohol.
Preferably, laser instrument, concave mirror and photoelectric sensor are provided with the detection of particles unit；The detection of particles
Unit inwall is fixedly installed the laser instrument, and the laser of laser instrument transmitting and the moving line of particle in 90 ° of angles, laser
It is transmitted into the scattered light produced on particle to collect by the concave mirror and be irradiated on the photoelectric sensor, the photoelectric transfer
Sensor be used for according to the frequency of scattered light calculate in mouth mask to be measured by the detection of particles unit gas particle Particle density or
Surrounding air Particle number concentration, and send it to described control unit.
Preferably, described control unit includes mode switch module, temperature control modules, adaptation computing module and flow
Measurement module；The mode switch module is used to switch in the mouth mask of the two-bit triplet magnetic valve to adopt outside sampling configuration and mouth mask
Original mold formula；The temperature control modules are used to control the temperature difference of hot junction and cold end in the particle growth unit, and then control
Particle growth rate in the particle growth unit；The adaptation computing module is used to obtain what the photoelectric sensor was calculated
Gas particle Particle density and the adaptation of mouth mask to be measured is calculated in surrounding air Particle number concentration and mouth mask to be measured；The flow is surveyed
Amount module is used to measure the total flow of the aspiration pump sampling by the flowmeter.
Preferably, the adaptation computing module calculates the adaptation of mouth mask to be measured according to formula (1)：
C=A/B (1)
Wherein, A is the Particle number concentration in surrounding air, and B is the Particle number concentration in mouth mask to be measured；And according to formula
(2) total adaptation of mouth mask to be measured is calculated：
Wherein, n is testing time, CiIt is the adaptation according to different standard testings.
Due to taking above technical scheme, it has advantages below to the present invention：1st, the present invention by current divider due to being screened
Go out the less small particle of particle diameter, by particle growth unit and detection of particles unit by nuclei of condensation particle growth and laser particle
Counting combines, and small particle is grown into bulky grain thing and Particle number concentration is calculated, and then obtains mouth mask by control unit
Adaptation, simple structure and measurement are accurately.2nd, the present invention can pass through the nodding up and down of tester, a right left side and shake the head and bend over etc. dynamic
Work carries out repeatedly test to adaptation makes measurement result more accurate, easy to operate and time saving and energy saving, can be widely applied to mouth
In the test of cover adaptation.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the use schematic diagram of mouth mask piercing assembly of the present invention.
Specific embodiment
Detailed description is carried out to the present invention below in conjunction with accompanying drawing.It should be appreciated, however, that accompanying drawing has been provided only more
Understand the present invention well, they should not be interpreted as limitation of the present invention.
As shown in Fig. 1～2, the mouth mask adaptation tester of the present invention includes mouth mask piercing assembly 1, two-bit triplet magnetic valve
2nd, gas circuit connecting pipe 3, current divider 4, particle growth unit 5, detection of particles unit 6, threeway 7, high efficiency particulate air filter 8, flowmeter 9,
Aspiration pump 10 and control unit.
Mouth mask piercing assembly 1 is used to gather gas in mouth mask to be measured, and mouth mask piercing assembly 1 is fixedly connected two by sampling pipe
One air inlet of position-3-way solenoid valve 2, another air inlet connection air of two-bit triplet magnetic valve 2, two-bit triplet magnetic valve 2
Gas outlet is fixedly connected the air inlet of the bottom end of inverted T-shaped current divider 4 by gas circuit connecting pipe 3；The top of inverted T-shaped current divider 4
Gas outlet is fixedly connected the bottom inlet of particle growth unit 5, and particle growth unit 5 is used to grow the small particle in gas
For bulky grain thing, the top of particle growth unit 5 is used to make particle be fixedly connected detection of particles into the nozzle that queue is sprayed by one
The import of unit 6, detection of particles unit 6 is used to calculate gas particle Particle density or ring in the mouth mask to be measured 15 by the detector unit
Border air particles Particle density, the outlet of detection of particles unit 6 is fixedly connected an import of threeway 7 by gas circuit connecting pipe 3；Inverted T-shaped
The gas outlet of the bottom other end of current divider 4 is fixedly connected the another of threeway 7 by being used to filter the high efficiency particulate air filter 8 of unclean thing
Import, the outlet of threeway 7 is fixedly connected aspiration pump 10 by flowmeter 9, and aspiration pump 10 is used to provide power for sampling.Control is single
Unit is electrically connected two-bit triplet magnetic valve 2, particle growth unit 5, detection of particles unit 6 and flowmeter 9, by treating for obtaining
Survey gas particle Particle density and surrounding air Particle number concentration in mouth mask 15 and calculate mouth mask adaptation.
In a preferred embodiment, mouth mask piercing assembly 1 includes the first puncture component 11, the second puncture component 12, probe
13 and sampling probe component 14, wherein, sampling probe component 14 includes sampling probe 141 and sampling sealing ring 142, and first punctures
The inner of part 11 is detachably connected probe 13, and probe 13 is fixed and wears sampling probe 141, and the inner of the second puncture component 12 is fixedly connected adopts
Sample sealing ring 142, one end of sampling probe 141 also connects an air inlet of two-bit triplet magnetic valve 2 by sampling pipe, uses
When, probe 13 passes mouth mask to be measured 15 and inserts the second puncture component 12 and is fixed, and now sampling probe 141 is fixedly installed on and treats
Survey the breath-sensitive region of mouth mask 15.
In a preferred embodiment, current divider 4 can be in the way of adoption rate shunting, into particle growth unit 5
Gas flow be 0.1500.45L/min, into high efficiency particulate air filter 8 gas flow be 0.501.5L/min, wherein, particle diameter
Bulky grain thing more than 100nm is directly entered in aspiration pump 10 because inertia is larger by high efficiency particulate air filter 8, and particle diameter is less than
The small particle following sampling gas of 100nm enters particle growth unit 5.
In a preferred embodiment, particle growth unit 5 adopts nuclei of condensation particle growth principle, particle diameter to be less than
The small particle growth rate of 100nm can be to more than 75%.5 points of particle growth unit is cold end and hot junction, and cold end is given birth to positioned at particle
The top of long unit 5, hot junction is located at the lower section of particle growth unit 5, and hot junction is provided with the alcohol core for being saturated with alcohol, for by alcohol
Alcohol in core is heated and volatilizees and be attached to after condensing around small particle, makes small particle be grown to bulky grain thing.
In a preferred embodiment, detection of particles unit 6 adopts laser particle counter principle, detection of particles unit 6
Inside it is provided with laser instrument 61, concave mirror and photoelectric sensor；The inwall of detection of particles unit 6 is fixedly installed laser instrument 61, and laser
The laser of the transmitting of device 61 is in 90 ° of angles with the moving line of particle, and the scattered light produced in Laser emission to particle passes through concave mirror
Collect and be irradiated on photoelectric sensor, photoelectric sensor is used to be calculated by detection of particles unit 6 according to the frequency of scattered light
Mouth mask to be measured 15 in gas particle Particle density or surrounding air Particle number concentration, and send it to control unit.
In a preferred embodiment, control unit includes that mode switch module, temperature control modules, adaptation are calculated
Module and flow measurement module；Mode switch module is used to switch sampling configuration and mouth mask in the mouth mask of two-bit triplet magnetic valve 2
Outer sampling configuration.Temperature control modules are used to control the temperature difference of hot junction and cold end in particle growth unit 5, and then control particle
Particle growth rate in growing element 5.Adaptation computing module is used to obtain the surrounding air population of photoelectric sensor calculating
Gas particle Particle density and the adaptation of mouth mask to be measured is calculated in concentration and mouth mask to be measured 15.Flow measurement module is used for by stream
The total flow of the measurement sampling of aspiration pump 10 of gauge 9, wherein, control unit can adopt the side of chip, single-chip microcomputer or control circuit
Formula.
Describe the test process of the mouth mask adaptation tester of the present invention in detail below by specific embodiment：
1) tester wears mouth mask to be measured 15, and by probe 13 mouth mask to be measured 15 is punctured, and sampling probe 141 is fixedly installed
In the breath-sensitive region of mouth mask to be measured 15, and the connection of each part is completed.
2) control unit passes through mode switch module and switches in the mouth mask of two-bit triplet magnetic valve 2 outside sampling configuration and mouth mask
Gas or surrounding air are entered inside tester in sampling configuration, and then control mouth mask 15 to be measured, in the presence of aspiration pump 10,
Gas or surrounding air enter tester by two-bit triplet magnetic valve 2 in mouth mask to be measured 15, and Jing current dividers 4 are divided into sample gas
And bypass gas, particle diameter follows bypass gas to be filtered into high efficiency particulate air filter 8 more than the bulky grain thing of 100nm, and particle diameter is little
Particle growth unit 5 is entered in the small particle following sampling gas of 100nm.
3) control unit controls the temperature difference of hot junction and cold end in particle growth unit 5, particle diameter by temperature control modules
Small particle less than 100nm is fully mixed when hot junction with the alcohol steam of volatilization of being heated, and sample gas continue up stream
Condense and be attached to around small particle through cold end, alcohol steam during dynamic, be grown to the less small particle of particle diameter
The larger bulky grain thing that can be detected by follow-up detection of particles unit 6 of particle diameter.
4) bulky grain thing is entered in detection of particles unit 6 into queue form by nozzle and calculates particle by photoelectric sensor
Particle density, the Particle number concentration A when two-bit triplet magnetic valve 2 switches to mouth mask sampling configuration outward in computing environment air, when
Two-bit triplet magnetic valve 2 calculates the Particle number concentration B in mouth mask to be measured 15 in gas when switching to sampling configuration in mouth mask.
5) control unit calculates the adaptation of mouth mask to be measured by adaptation computing module according to formula (1)：
C=A/B (1)
Tester is set to be nodded up and down according to different standards, a right left side is shaken the head and bend over etc. action, each action is right
An adaptation C should be measuredi, and total adaptation C of mouth mask to be measured 15 is calculated according to formula (2)n：
6) sample gas and process in the presence of aspiration pump 10, Jing after particle growth unit 5 and detection of particles unit 6
Bypass gas after high efficiency particulate air filter 8 is filtered can pass through flowmeter 9 into aspiration pump 10 and finally discharge Jing threeway 7 with after.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each part, connected mode and manufacture craft etc. are all
Can be what is be varied from, every equivalents carried out on the basis of technical solution of the present invention and improvement should not be excluded
Outside protection scope of the present invention.
Claims (9)
1. a kind of mouth mask adaptation tester, it is characterised in that the tester includes：
One is used to gather the mouth mask piercing assembly of gas in mouth mask to be measured；
One or two position-3-way solenoid valve a, air inlet of the two-bit triplet magnetic valve is fixedly connected the mouth mask piercing assembly, institute
State another air inlet connection air of two-bit triplet magnetic valve；
One current divider, the air inlet of the shunt base one connects the gas outlet of the two-bit triplet magnetic valve；
One is used to that the small particle in gas to be grown to the particle growth unit of bulky grain thing, the bottom of the particle growth unit
Portion's import is fixedly connected the splitter overhead outlet；
One is used to calculate the detection of particles unit of gas particle Particle density or surrounding air Particle number concentration in mouth mask to be measured, described
The bottom inlet of detection of particles unit is fixedly connected the top exit of the particle growth unit by nozzle；
One threeway a, import of the threeway is fixedly connected the top exit of the detection of particles unit, the threeway it is another
Import is fixedly connected another gas outlet of the shunt base；
One aspiration pump, the aspiration pump is fixedly connected the outlet of the threeway；And,
One control unit, described control unit is electrically connected the two-bit triplet magnetic valve, particle growth unit, detection of particles
Unit and flowmeter.
2. a kind of mouth mask adaptation tester as claimed in claim 1, it is characterised in that the mouth mask piercing assembly includes the
One puncture component, the second puncture component, probe and sampling probe component, wherein, the sampling probe component includes sampling probe and adopts
Sample sealing ring；
Described first puncture component the inner is detachably connected the probe, and the probe is fixed and wears the sampling probe, and described the
Two puncture component the inners are fixedly connected the sampling sealing ring, and the sampling probe also connects described two three by the sampling pipe
One air inlet of three-way electromagnetic valve, when using, the probe passes mouth mask to be measured and inserts second puncture component and is fixed.
3. a kind of mouth mask adaptation tester as claimed in claim 1, it is characterised in that the current divider and the threeway it
Between a high efficiency particulate air filter is fixedly installed.
4. a kind of mouth mask adaptation tester as claimed in claim 3, it is characterised in that the current divider is tied using inverted T-shaped
Structure.
5. a kind of mouth mask adaptation tester as claimed in claim 1, it is characterised in that the aspiration pump and three pass-out
Flow meters are set between mouthful.
6. a kind of mouth mask adaptation tester as described in Claims 1 to 5, it is characterised in that the particle growth unit point
For cold end and hot junction, positioned at particle growth unit top, the hot junction is under the particle growth unit for the cold end
Side, and the hot junction is provided with the alcohol core for being saturated with alcohol.
7. a kind of mouth mask adaptation tester as described in any one of Claims 1 to 5, it is characterised in that the detection of particles
Laser instrument, concave mirror and photoelectric sensor are provided with unit；The detection of particles unit inwall is fixedly installed the laser instrument,
And the laser of laser instrument transmitting and the moving line of particle are in 90 ° of angles, the scattered light produced in Laser emission to particle is led to
Cross the concave mirror to collect and be irradiated on the photoelectric sensor, the photoelectric sensor is used for the frequency meter according to scattered light
Calculate by gas particle Particle density or surrounding air Particle number concentration in the mouth mask to be measured of the detection of particles unit, and by its
It is sent to described control unit.
8. a kind of mouth mask adaptation tester as claimed in claim 6, it is characterised in that described control unit is cut including pattern
Mold changing block, temperature control modules, adaptation computing module and flow measurement module；The mode switch module is described for switching
Sampling configuration and the outer sampling configuration of mouth mask in the mouth mask of two-bit triplet magnetic valve；The temperature control modules are used to control the grain
The temperature difference of hot junction and cold end in sub- growing element, and then control the particle growth rate in the particle growth unit；It is described close
Right computing module is for gas grain in the surrounding air Particle number concentration and mouth mask to be measured that obtain the photoelectric sensor calculating
Subnumber concentration simultaneously calculates the adaptation of mouth mask to be measured；The flow measurement module is used to measure the pumping by the flowmeter
The total flow of pump sampling.
9. a kind of mouth mask adaptation tester as claimed in claim 8, it is characterised in that the adaptation computing module according to
Formula (1) calculates the adaptation of mouth mask to be measured：
C=A/B (1)
Wherein, A is the Particle number concentration in surrounding air, and B is the Particle number concentration in mouth mask to be measured；And counted according to formula (2)
Calculate total adaptation of mouth mask to be measured：
Wherein, n is testing time, CiIt is the adaptation according to different standard testings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611107478.XA CN106644883B (en) | 2016-12-06 | 2016-12-06 | Mask tightness tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611107478.XA CN106644883B (en) | 2016-12-06 | 2016-12-06 | Mask tightness tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106644883A true CN106644883A (en) | 2017-05-10 |
| CN106644883B CN106644883B (en) | 2023-09-22 |
Family
ID=58819735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611107478.XA Active CN106644883B (en) | 2016-12-06 | 2016-12-06 | Mask tightness tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106644883B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982424A (en) * | 2020-08-21 | 2020-11-24 | 浙江大学 | Sneeze leakage prevention detection device and method for mask breather valve |
| CN113551848A (en) * | 2021-06-07 | 2021-10-26 | 中国船舶重工集团公司第七一八研究所 | Device and method for testing leakage amount of oxygen mask for airplane |
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|---|---|---|---|---|
| JP2978930B1 (en) * | 1998-12-10 | 1999-11-15 | 核燃料サイクル開発機構 | Maskman test device Dew condensation prevention device in sampling hose |
| JP2013190246A (en) * | 2012-03-13 | 2013-09-26 | Shimadzu Corp | Aerosol fine particle measuring device |
| JP2014002035A (en) * | 2012-06-18 | 2014-01-09 | National Institute Of Advanced Industrial & Technology | Partial suction type condensed particle counter |
| CN204165874U (en) * | 2014-11-19 | 2015-02-18 | 国家电网公司 | A kind of mouth mask proving installation |
| CN204346871U (en) * | 2015-01-15 | 2015-05-20 | 湖北省超能超高压电力科技开发有限公司 | Rate performance test easy device crossed by filter-type respirator |
| CN106018235A (en) * | 2016-05-20 | 2016-10-12 | 广州纤维产品检测研究院 | Protection effect test chamber of mask and test method |
-
2016
- 2016-12-06 CN CN201611107478.XA patent/CN106644883B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2978930B1 (en) * | 1998-12-10 | 1999-11-15 | 核燃料サイクル開発機構 | Maskman test device Dew condensation prevention device in sampling hose |
| JP2013190246A (en) * | 2012-03-13 | 2013-09-26 | Shimadzu Corp | Aerosol fine particle measuring device |
| JP2014002035A (en) * | 2012-06-18 | 2014-01-09 | National Institute Of Advanced Industrial & Technology | Partial suction type condensed particle counter |
| CN204165874U (en) * | 2014-11-19 | 2015-02-18 | 国家电网公司 | A kind of mouth mask proving installation |
| CN204346871U (en) * | 2015-01-15 | 2015-05-20 | 湖北省超能超高压电力科技开发有限公司 | Rate performance test easy device crossed by filter-type respirator |
| CN106018235A (en) * | 2016-05-20 | 2016-10-12 | 广州纤维产品检测研究院 | Protection effect test chamber of mask and test method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982424A (en) * | 2020-08-21 | 2020-11-24 | 浙江大学 | Sneeze leakage prevention detection device and method for mask breather valve |
| CN111982424B (en) * | 2020-08-21 | 2021-05-07 | 浙江大学 | Sneeze leakage prevention detection device and method for mask breather valve |
| CN113551848A (en) * | 2021-06-07 | 2021-10-26 | 中国船舶重工集团公司第七一八研究所 | Device and method for testing leakage amount of oxygen mask for airplane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106644883B (en) | 2023-09-22 |
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