CN106501150A - A kind of mouth mask strainability tester - Google Patents
A kind of mouth mask strainability tester Download PDFInfo
- Publication number
- CN106501150A CN106501150A CN201610937339.3A CN201610937339A CN106501150A CN 106501150 A CN106501150 A CN 106501150A CN 201610937339 A CN201610937339 A CN 201610937339A CN 106501150 A CN106501150 A CN 106501150A
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- China
- Prior art keywords
- flowmeter
- mouth mask
- air pump
- vacuum air
- test pipeline
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Classifications
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- 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
- 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
Abstract
The present invention relates to a kind of mouth mask strainability tester, the mouth mask strainability tester is made up of vacuum air pump, flowmeter, corpuscular counter, test pipeline, base.Adopt bore to be attached for the PVC wired hoses of 30mm between the vacuum air pump and flowmeter, the PU small hoses that bore is 12mm are respectively adopted between the test pipeline and corpuscular counter and the flowmeter and are attached.Apparatus of the present invention small volume, light weight, low cost, portable, the filter efficiency of mouth mask under variable grain thing concentration can be tested, can replace in routine testing that volume is larger, 8130 testers of expensive TSI, testing efficiency can be significantly improved, reduce testing cost.
Description
Technical field
A kind of a kind of the present invention relates to filtering material performance tester, more particularly to mouth mask strainability tester.
Background technology
In recent years, haze phenomenon is more serious, and mouth mask becomes a kind of necessary means that people protect external hazards.But,
Existing market muzzles, and species is various, and which mouth mask has preferable protective action, common into consumers in general and related scholar
With the problem of concern, mouth mask strainability test device has also obtained the attention of people.In order to study medical mask, industrial anti-dust
Mouth mask and the strainability of other filtering materials, early in 20th century, researcher just puts into filtration of material detection means one after another
Development work in, successively occur in that various types of strainability test devices both at home and abroad.The JIS detecting systems of Japan's exploitation
The characteristic of filtrate is evaluated by Binding experiment conditions such as arresting efficiency, cleaning efficiency, residual dust amounts.German PALAS companies
The MFP-3000 filtrates test device of production is widely used in some producers European and testing agency.Some medical institutions with
Scientific Research in University Laboratory often fixes mouth mask using bionical headform for the experimental study of mouth mask strainability, is then placed in sealing
Hold one's breath.At present, the whole world using most wide be the automatic media filtration efficiency test equipment of U.S.'s TSI-8130 types.
Domestic some enterprises and institute filter efficiency Cleaning Principle and technical requirements according to specified in concerned countries standard, use for reference
With reference to the operation principle and technical characteristic of the automatic filtrate testers of TSI-8130, or the particulate generator using Technical Sourcing Internation and
Detector, have developed various test devices or detection platform.These devices mostly are medical institutions and the large-scale of use for laboratory sets
Standby, volume is larger, expensive, only the testing agency of only a few and enterprise purchase use, be not particularly suited for small-size laboratory,
Fast reaction mechanism and ordinary consumer.Due to mouth mask protected from environmental larger, monitoring or indoor different spaces out of doors
During traverse measurement, quite inconvenient using main equipment, therefore, a small volume, light weight, portable is developed in market in urgent need
Mouth mask strainability test device.
Content of the invention
It is an object of the invention to provide a kind of small volume, light weight, portative mouth mask strainability tester.For reality
Existing above-mentioned purpose, the concrete technical scheme that is implemented are as follows：
A kind of mouth mask strainability tester, is made up of vacuum air pump, flowmeter, corpuscular counter, test pipeline and base.
On base, the flowmeter is located between the vacuum air pump and test pipeline the vacuum air pump, the flowmeter
It is connected with vacuum air pump and test pipeline respectively, the test pipeline is also associated with corpuscular counter.
Wherein, pass through PVC wired hose phase of the bore for 30mm between the vacuum air pump and the flowmeter
Even；PU small hoses between the flowmeter and the test pipeline by a bore for 12mm are connected, and interface selects mouth
Footpath is fastened for the quick detachable pneumatic joint of 12mm, this pneumatic joint do not need instrument can be realized as pipeline connection or
Disconnect, and ensure that the air-tightness of pipeline connection.Pass through a mouth between the test pipeline and the corpuscular counter
Footpath is connected for the PU small hoses of 12mm, and interface is fastened from the threaded metal joint in inner side.The vacuum air pump
Import and export and test pipeline fastened using pipe collar, it is ensured that its air-tightness.
The vacuum air pump selects HG-120 type vortex pumps, and rated power is 0.12KW, and maximum stream flow is 36m3/ h,
The speed of exhaust is matched with the range of flowmeter.HG type vortex pumps are a kind of air blowing or the dual-purpose Novel air pump of air-breathing, structure
Compact, anhydrous oil-free, light weight, easy to use, the equipment has the rotor of a high-speed rotation, and the blade on rotor can drive
Air high-speed motion.
Flowmeter LZT-15T suspended body flowmeters, detection range are 10-100L/min.The flow is calculated as panel type
Suspended body flowmeter, material are rigid plastics.When operation principle flows through taper hole from bottom to top for fluid, difference is produced up and down in float
Pressure, float rise under differential pressure effect, and the power and the gravity suffered by float, buoyancy and stickiness power three risen when float is made a concerted effort phase
Deng when, float in balance position.Therefore, exist between the lifting height of the flow and float that flow through flowmeter certain
Proportionate relationship, the position height of float can measuring as flow.
Portable CEM four-in-one corpuscular counter of the corpuscular counter for DT-9880M, this corpuscular counter is also
There are count mode, count mode measure 6 kinds of particle diameter passages simultaneously, minimum diameter can detect that 0.3 μm, resolution ratio is 1 μ g/
m3.In addition, it can also detect air themperature, relative humidity, 4 kinds of air parameters of dew-point temperature and wet-bulb temperature, and test
Data can be stored.
PVC of the test selection for pipeline bore for 75mm（Polyvinyl chloride）Plastic tube, the pipeline wall thickness be 2.3mm, material
Light weight and hard, it is not easy to deform.
The operation principle of above-mentioned mouth mask strainability tester is：The mouth mask strainability tester passes through flowmeter control
The speed of exhaust of vavuum pump processed, to simulate the respiratory rate of human body. in test process, mouth mask is fixed on test pipeline first
Right exit, open vacuum pump switch, adjust flowmeter to needs flow velocity, corpuscular counter is inserted in test pipeline then
On, you can test is through the particle concentration after mouth mask filtration. and subsequently, the particle concentration that re-test is filtered without mouth mask, with public affairs
Formula：η=(1-ρ 2 of ρ)/ρ 1 × 100% can be calculated the filter efficiency of mouth mask, pass judgment on the strainability of all kinds of mouth masks with this：?
In above-mentioned formula：ρ 1 is the particle concentration (μ g/m3) in gas before filtering；ρ 2 is the particle concentration (μ in gas after filtering
g/m3)；Filter efficiencies (%) of the η for mouth mask.
Compared with prior art, the invention has the beneficial effects as follows：
The device volume is little, light weight, low cost, portable, can test the filter efficiency of mouth mask under variable grain thing concentration,
Can replace in routine testing that volume is larger, expensive TSI-8130 testers, testing efficiency can be significantly improved, reduce surveying
Examination cost.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the filter effect contrast of various mouth mask samples.
Annex is marked：1- vacuum air pumps, 2- flowmeters, 3- corpuscular counters, 4- test pipeline, 5- bases.
Specific embodiment
The present invention is described in further detail below：
A kind of mouth mask strainability tester as shown in Figure 1, by vacuum air pump 1, flowmeter 2, corpuscular counter 3, test
Pipeline 4, base 5 are constituted.On base, the flowmeter is located at the vacuum air pump and testing tube to the vacuum air pump
Between road, the flowmeter is connected with vacuum air pump and test pipeline respectively, and the test pipeline is also associated with corpuscular counter.
Wherein, pass through PVC wired hose of the bore for 30mm between the vacuum air pump 1 and the flowmeter 2
It is connected；PU small hoses between the flowmeter 2 and the test pipeline 4 by a bore for 12mm are connected, and interface is selected
Fastened with the quick detachable pneumatic joint that bore is 12mm.Pass through one between the test pipeline 4 and the corpuscular counter 3
Root bore is connected for the PU small hoses of 12mm, and interface is fastened from the threaded metal joint in inner side.The vacuum is taken out
The import and export of air pump 1 and test pipeline 4 are fastened using pipe collar, it is ensured that its air-tightness.
The vacuum air pump 1 selects HG-120 type vortex pumps, and rated power is 0.12KW, and maximum stream flow is 36m3/
H, the speed of exhaust are matched with the range of flowmeter.HG type vortex pumps are the dual-purpose Novel air pumps of a kind of air blowing or air-breathing, tie
Structure is compact, anhydrous oil-free, light weight, easy to use, and the equipment has the rotor of a high-speed rotation, and the blade on rotor can band
Dynamic air high-speed motion.
The LZT-15T suspended body flowmeters of the flowmeter 2, detection range are 10-100L/min.The flow is calculated as panel type
Suspended body flowmeter, material are rigid plastics.
Portable CEM four-in-one corpuscular counter of the corpuscular counter 3 for DT-9880M, this corpuscular counter is also
There are count mode, count mode measure 6 kinds of particle diameter passages simultaneously, minimum diameter can detect that 0.3 μm, resolution ratio is 1 μ g/
m3, in addition, it can also detect air themperature, relative humidity, 4 kinds of air parameters of dew-point temperature and wet-bulb temperature, and test
Data can be stored.
The test pipeline 4 is from the PVC that bore is 75mm（Polyvinyl chloride）Plastic tube, the pipeline wall thickness be 2.3mm, material
Light weight and hard, it is not easy to deform.
14 kinds of different classes of mouth masks are chosen for testing sample, concrete sample classification is shown in Table 1.Using the technical program from
The filter efficiency of each sample of device to test processed, is contrasted with the test result of the automatic filtrate testers of TSI-8130, checking
The validity of the device.The test flow of two kinds of instruments is 85L/min, tests 3 times.After tested, the filtration effect of two kinds of instruments
Fruit is as shown in Fig. 2 the analysis of statistical results of test data is as shown in table 2.Should test result indicate that：Using the technical program from
Device processed does not have significant difference with the filter efficiency of the dynamic filtrate tester measurement mouth masks of TSI-8130, and alternative its carries out daily
The test of mouth mask strainability, so as to significantly improve testing efficiency, reduce testing cost.
Finally it should be noted that：Obviously, above-described embodiment is used for the purpose of example of the present invention is clearly described, and
The not restriction to implementing.For the those of ordinary skill in the field, can also make on the basis of the above description
The change of other multi-forms changes to realize.There is no need to all of embodiment party's formula with exhaustion, and thus
Amplified obvious change or change still in protection scope of the present invention among.
Table 1：Mouth mask sample
| Mouth mask is numbered | Mouth mask is classified | Mouth mask is numbered | Mouth mask is classified |
| 1 | Daily warming mouth mask | 8 | 3M9010N95 mouth masks |
| 2 | 16 layers of degreasing cotton face mask | 9 | 9041KN90 active carbon masks |
| 3 | Green shield mouth mask | 10 | 3M9001KN90 mouth masks |
| 4 | The general cotton face mask of Switzerland | 11 | 3M9502KN95 mouth masks |
| 5 | Dispoable medical mouth mask | 12 | Japanese three-D mouth mask |
| 6 | Active carbon mask | 13 | Green shield M95 mouth masks |
| 7 | Day raw white unit disposable breathing mask | 14 | U.S.'s Pu Weixin medical masks |
Table 2：Test data analysis of statistical results
| Equipment | Sample size/ | Mean value/% | Standard deviation/% | Minimum/% | Maximum/% |
| TSI-8130 | 14 | 69.2236 | 34.952 | 7.77 | 99.69 |
| Home-made contrivance | 14 | 69.965 | 34.103 | 11.53 | 99.12 |
Claims (5)
1. a kind of mouth mask strainability tester, it is characterised in that：Including vacuum air pump（1）, flowmeter（2）, particle counting
Device（3）, test pipeline（4）, base（5）；The vacuum air pump（1）It is arranged on base（5）On, the flowmeter（2）It is located at
The vacuum air pump（1）With test pipeline（4）Between, the flowmeter（2）Respectively with vacuum air pump（1）With test pipeline（4）
Connection, the test pipeline（4）It is also associated with corpuscular counter（3）.
2. mouth mask strainability tester according to claim 1, it is characterised in that：The vacuum air pump（1）From
HG-120 type vortex pumps, rated power are 0.12KW, and maximum stream flow is 36m3/h.
3. mouth mask strainability tester according to claim 1, it is characterised in that：The flowmeter（2）Use LZT-15T
Suspended body flowmeter, detection range are 10-100L/min, and the flow is calculated as panel type suspended body flowmeter, and material is rigid plastics.
4. mouth mask strainability tester according to claim 1, it is characterised in that：The corpuscular counter（3）For DT-
The portable CEM four-in-ones corpuscular counter of 9880M.
5. mouth mask strainability tester according to claim 1, it is characterised in that：The vacuum air pump（1）With institute
State flowmeter（2）Between PVC wired hoses by bore for 30mm be connected；The flowmeter（2）With the testing tube
Road（4）Between PU small hoses by bore for 12mm be connected, interface is connect for the quick detachable pneumatic of 12mm from bore
Head is fastened；The test pipeline（4）With the corpuscular counter（3）Between by bore for 12mm PU small hoses
It is connected, interface is fastened from the threaded metal joint in inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610937339.3A CN106501150A (en) | 2016-10-25 | 2016-10-25 | A kind of mouth mask strainability tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610937339.3A CN106501150A (en) | 2016-10-25 | 2016-10-25 | A kind of mouth mask strainability tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106501150A true CN106501150A (en) | 2017-03-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610937339.3A Pending CN106501150A (en) | 2016-10-25 | 2016-10-25 | A kind of mouth mask strainability tester |
Country Status (1)
| Country | Link |
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| CN (1) | CN106501150A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387601A (en) * | 2017-08-03 | 2019-02-26 | 裕亲有限公司 | Empty dirt test macro |
| CN109781608A (en) * | 2019-03-26 | 2019-05-21 | 华中科技大学 | A kind of mask strainability test device and method |
| CN110320141A (en) * | 2019-05-10 | 2019-10-11 | 中国建筑科学研究院有限公司 | Device and method for detecting air supply quantity and purification performance of electric mask |
| CN112033877A (en) * | 2020-09-10 | 2020-12-04 | 苏州华达仪器设备有限公司 | Gauze mask filter material integrated test equipment |
| CN112284995A (en) * | 2020-10-14 | 2021-01-29 | 南京工业大学 | Hard metal dust protective mask testing device |
| CN112924212A (en) * | 2021-01-26 | 2021-06-08 | 郭林 | Melt and spout peeling means of cloth and non-woven fabrics |
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| CN2906620Y (en) * | 2006-04-30 | 2007-05-30 | 东华大学 | Disposable mask performance tester |
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Patent Citations (4)
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| CN202837151U (en) * | 2012-09-27 | 2013-03-27 | 厦门高科防静电装备有限公司 | Automatic filter efficiency tester |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387601A (en) * | 2017-08-03 | 2019-02-26 | 裕亲有限公司 | Empty dirt test macro |
| CN109781608A (en) * | 2019-03-26 | 2019-05-21 | 华中科技大学 | A kind of mask strainability test device and method |
| CN110320141A (en) * | 2019-05-10 | 2019-10-11 | 中国建筑科学研究院有限公司 | Device and method for detecting air supply quantity and purification performance of electric mask |
| CN112033877A (en) * | 2020-09-10 | 2020-12-04 | 苏州华达仪器设备有限公司 | Gauze mask filter material integrated test equipment |
| CN112284995A (en) * | 2020-10-14 | 2021-01-29 | 南京工业大学 | Hard metal dust protective mask testing device |
| CN112924212A (en) * | 2021-01-26 | 2021-06-08 | 郭林 | Melt and spout peeling means of cloth and non-woven fabrics |
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Application publication date: 20170315 |
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