CN204165874U - A kind of mouth mask proving installation - Google Patents
A kind of mouth mask proving installation Download PDFInfo
- Publication number
- CN204165874U CN204165874U CN201420696709.5U CN201420696709U CN204165874U CN 204165874 U CN204165874 U CN 204165874U CN 201420696709 U CN201420696709 U CN 201420696709U CN 204165874 U CN204165874 U CN 204165874U
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- Prior art keywords
- pipe
- sampling
- mouth mask
- headform
- air sampler
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- 238000009434 installation Methods 0.000 title claims abstract description 16
- 238000005070 sampling Methods 0.000 claims abstract description 63
- 230000003189 isokinetic effect Effects 0.000 claims abstract description 25
- 238000004088 simulation Methods 0.000 claims abstract description 11
- 229910052744 lithium Inorganic materials 0.000 claims description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 230000001603 reducing effect Effects 0.000 claims description 8
- 238000001914 filtration Methods 0.000 description 15
- 238000012360 testing method Methods 0.000 description 13
- 239000010419 fine particle Substances 0.000 description 12
- 230000003434 inspiratory effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 210000003128 head Anatomy 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000001815 facial effect Effects 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model provides a kind of mouth mask proving installation, comprising: mobile handcart, headform, sampling pipe, isokinetic sampling's pipe, air sampler, corpuscular counter; Wherein, described headform, air sampler are all arranged at described mobile handcart, described sampling pipe one end connects the simulation tracheae of described headform, the other end of sampling pipe is connected with air sampler by flexible pipe, the part cover of described isokinetic sampling's pipe inserts in sampling pipe, described isokinetic sampling's pipe one end connects corpuscular counter/microbarograph, and the other end cover of isokinetic sampling's pipe is inserted to the stage casing of described sampling pipe.The utility model is convenient to mobile and operation, instead of traditional flowmeter and asepwirator pump, can meet the charging needs of outdoor long working with air sampler, and easy to operate, be easy to carry about with one and pass.
Description
Technical field
The utility model relates to measuring technology, is a kind of mouth mask proving installation concretely.
Background technology
Due to China's air quality continuous decrease in recent years, especially there is haze weather in population and more each big city of industry again and again, and air pollution problems inherent starts to cause people more and more to pay close attention to.In order to stop harmful fine particle contained in haze air, people have consciously put on various mouth mask when haze weather is gone out.
Such as prior art, adopts asepwirator pump air-breathing to make environmental aerosols enter pipeline, is aspirated and discharges, be provided with the meticulous grit monitor of microenvironment and digital micro manometer before and after filtering material respectively after filtering material filters by asepwirator pump.The heavy concentration of the particle meter filtering different grain section between 0.23 ~ 10 μm, front and back is measured, pressure drop before and after filtering with digital micro manometer measurement mouth mask filtering material with microenvironment meticulous grit monitor.Test traffic is controlled with suspended body flowmeter.The particle of 0.23 ~ 10 μm in surrounding air is divided into 13 sections, measures filtration efficiency and the resistance of mouth mask within the scope of different-grain diameter respectively.
Or prior art, tests the mass concentration of environmental aerosols before and after mouth mask or mouth mask filtrate; Adopt pressure drop before and after digital pressure test mouth mask or mouth mask filtrate, adopt suspended body flowmeter to control flow.
But mouth mask proving installation of the prior art, all do not embody how to realize isokinetic sampling, and package unit is not easy to carry, be not easy to go out to be exposed in atmospheric environment carry out outdoor actual measurement operation.
Utility model content
For testing the filtration efficiency of the fine particle in surrounding air and inspiratory resistance all kinds mouth mask on market, the utility model embodiment provides a kind of mouth mask proving installation, comprise: mobile handcart, headform, sampling pipe, isokinetic sampling's pipe, air sampler, corpuscular counter/microbarograph; Wherein,
Described headform, air sampler are all arranged at described mobile handcart, described sampling pipe one end connects the simulation tracheae of described headform, the other end of sampling pipe is connected with air sampler by flexible pipe, the part cover of described isokinetic sampling's pipe inserts in sampling pipe, described isokinetic sampling's pipe one end connects corpuscular counter/microbarograph, and the other end cover of isokinetic sampling's pipe is inserted to the stage casing of described sampling pipe.
Preferably, device of the present utility model also comprises:
Drying tower, is connected with described air sampler by flexible pipe, and the other end of described sampling pipe is connected with described drying tower by flexible pipe.
Preferably, the utility model device also comprises: charger, inverter and lithium battery, is all arranged at described mobile handcart.
Preferably, in the utility model embodiment, the two ends of sampling pipe are connected to the simulation tracheae of air sampler and headform by reducing component.
Preferably, in the utility model embodiment, mobile handcart comprises at least two-layer object-putting layer.
In addition, device of the present utility model also comprises: at least two reducings, and sampling pipe is connected with flexible pipe with the simulation tracheae of headform respectively by reducing.
Device of the present utility model is easy to carry, and is easy to operation, can be moved in atmospheric environment by equipment at any time and test.
For above and other object of the present utility model, feature and advantage can be become apparent, preferred embodiment cited below particularly, and coordinate institute's accompanying drawings, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic diagram of Fig. 1 mouth mask proving installation disclosed in the utility model;
Fig. 2 is the utility model one embodiment schematic diagram;
Fig. 3 is the schematic diagram of the utility model one embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides a kind of mouth mask proving installation, and as shown in Figure 1, this device comprises: mobile handcart 101, headform 102, sampling pipe 103, isokinetic sampling's pipe 104, air sampler 105, corpuscular counter/microbarograph 106; Headform 102, atmospheric sampling 105 are all arranged at mobile handcart 101, sampling pipe 103 one end connects the simulation tracheae 107 of headform 102, the other end of sampling pipe 103 is connected with air sampler 105 by flexible pipe 108, the part cover of isokinetic sampling's pipe 104 inserts in sampling pipe 103, isokinetic sampling's pipe 104 one end connects corpuscular counter/microbarograph 106, and the other end cover of isokinetic sampling's pipe 104 is inserted to the stage casing of sampling pipe 103.
As shown in Figure 2, device of the present utility model also comprises:
Drying tower 111, is connected with air sampler 105 by flexible pipe 112, and the other end of sampling pipe 103 is connected with drying tower 112 by flexible pipe 108.
Charger 113, inverter 114 and lithium battery 115, be all arranged at mobile handcart.
In the utility model embodiment, the two ends of sampling pipe are connected to the simulation tracheae 107 of air sampler 101 and headform 102 by reducing component.
Preferably, in the utility model embodiment, mobile handcart comprises at least two-layer object-putting layer.
The utility model device mainly comprises mobile device, sampling pipe, isokinetic sampling's pipe, headform, air sampler, mobile charging power supply, corpuscular counter and microbarograph, for testing filtration efficiency and the inspiratory resistance of mouth mask.Be illustrated in figure 3 the schematic diagram of the utility model one embodiment.The device of the present embodiment comprises: 1-human simulation head model; 2-reducing; 3-sampling pipe; 4-object-putting layer; 5-charger; 6-inverter; 7-headform storage layer; 8-lithium battery; 9-air sampler; 10-drying tower; 11-reducing; 12-article-displacing partition board; 13-corpuscular counter or microbarograph 15-isokinetic sampling pipe; 16-wheel.
The mobile device of the present embodiment is towing dolly pattern, the movement of go-cart when cart handle and wheel are convenient to outdoor work, and the brake of wheel can the placement location of good stationary carts.
Realistic model imitates human body head, face shape and nasal cavity and respiratory tract, and Head And Face adopts has flexible quality of rubber materials, can wear mouth mask, presents state during human body wearing mouth mask more realistically.
Mobile charging power supply is made up of charger, inverter and lithium battery.During outdoor work, because air sampler and corpuscular counter are all consumer products, the charge capacity of body itself is often inadequate.The mobile charging power supply of this apparatus design can be the two charging.Wherein charger can be lithium cell charging, and lithium battery is equipped with electric-quantity display device to prevent excessive discharge and recharge, and lithium battery can transfer DC voltage to alternating current 220V by inverter, meets the charging needs of air sampler and corpuscular counter at any time.
Sampling pipe two ends in the device of the present embodiment are designed to reducing, and one end connects the tracheae of human simulation head model, and one end connects the drying tower of air sampler.Isokinetic sampling's pipe straight cutting enters sampling pipe center, in specific embodiment, isokinetic sampling's pipe and sampling pipe all can adopt metal material, by isokinetic sampling's pipe box being inserted with sampling pipe, and by being welded to connect, the exit position of isokinetic sampling's light is connected with corpuscular counter or microbarograph, and thief hatch place gas flow rate can be made consistent with gas flow rate in sampling pipe.Corpuscular counter for detect wear before with wear by the fine particle quality concentration of mouth mask and number after various mouth mask, and can filtration efficiency be calculated.Microbarograph is for measuring inspiratory resistance.Headform can take off stored in go-cart by headform's storage layer, facilitates storage to receive.The article such as the minute book needed during operation, pen can be put into by object-putting layer.Article-displacing partition board is for placing corpuscular counter and microbarograph.
When mouth mask is tested, first open air sampler, first use mass concentration and the number of fine particle in corpuscular counter testing environment air at sample tap; Then cover sample is worn on headform.For merely testing filtration efficiency and the inspiratory resistance of mouth mask, prevent mouth mask from affecting mensuration because leaking gas around, first mouth mask sample surrounding plasticine or similar encapsulant are sealed, then detect mass concentration and the number of fine particle in the surrounding air after mouth mask filters at sample tap corpuscular counter, detect inspiratory resistance with microbarograph.The sealing of plane face mask is poorer, need first carry out sealing testing with facial laminating apparatus again.Face laminating apparatus can add bag high-density sponge again with after steel ring sizing, also can be undertaken sealing by the peripheral seal of similar three-dimensional mask or direct sealant tape seals.If test midway corpuscular counter and air sampler electricity exhaust, available lithium battery and inverter charge.
Computing method in embodiment are to be less than the fine particle of 2.5 micron grain sizes:
Be less than the filtration efficiency η of 2.5 micron grain size fine particles=
Wherein: ρ
1the mass concentration of 2.5 micron grain size fine particles is less than in-surrounding air
ρ
2-mouth mask is less than the mass concentration of 2.5 micron grain size fine particles after filtering
N1-for being less than the number of 2.5 micron grain size fine particles in surrounding air
N2-for being less than the number of 2.5 micron grain size fine particles after mouth mask filtration
The utility model provides a kind of analytical equipment for testing the research of mouth mask to fine particle filtration efficiency and inspiratory resistance, the suction condition of human body in surrounding air can be simulated intuitively by this device, and test filtration efficiency and the inspiratory resistance of all kinds mouth mask.By the analysis result of test, for people select oneself mouth mask applicable to make reference.
Key problem in technology of the present utility model is that proving installation design being become a set of is convenient to portable unit that is mobile and operation, not only isokinetic sampling can be realized, traditional flowmeter and asepwirator pump is instead of with air sampler, further provided with mobile charging power supply, the charging needs of outdoor long working can be met, and easy to operate, be easy to carry about with one and pass.In device, Mobile portable device, isokinetic sampling's pipe, mobile charging power supply and facial laminating apparatus are the key points of Success in Experiment.
Apply specific embodiment in the utility model to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (7)
1. a mouth mask proving installation, is characterized in that, described device comprises: mobile handcart, headform, sampling pipe, isokinetic sampling's pipe, air sampler, corpuscular counter/microbarograph; Wherein,
Described headform, air sampler are all arranged at described mobile handcart, described sampling pipe one end connects the simulation tracheae of described headform, the other end of sampling pipe is connected with air sampler by flexible pipe, the part cover of described isokinetic sampling's pipe inserts in sampling pipe, described isokinetic sampling's pipe one end connects corpuscular counter/microbarograph, and the other end cover of isokinetic sampling's pipe is inserted to the stage casing of described sampling pipe.
2. mouth mask proving installation as claimed in claim 1, it is characterized in that, described sampling pipe and isokinetic sampling's pipe are by being welded to connect.
3. mouth mask proving installation as claimed in claim 1, it is characterized in that, described device also comprises:
Drying tower, is connected with described air sampler by flexible pipe, and the other end of described sampling pipe is connected with described drying tower by flexible pipe.
4. mouth mask proving installation as claimed in claim 1, it is characterized in that, described device also comprises: charger, inverter and lithium battery, is all arranged at described mobile handcart.
5. mouth mask proving installation as claimed in claim 1, it is characterized in that, the two ends of described sampling pipe are connected to the simulation tracheae of air sampler and headform by reducing component.
6. mouth mask proving installation as claimed in claim 1, it is characterized in that, described mobile handcart comprises at least two-layer object-putting layer.
7. mouth mask proving installation as claimed in claim 1, it is characterized in that, described device comprises:
At least two reducings, described sampling pipe is connected with flexible pipe with the simulation tracheae of headform respectively by reducing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696709.5U CN204165874U (en) | 2014-11-19 | 2014-11-19 | A kind of mouth mask proving installation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696709.5U CN204165874U (en) | 2014-11-19 | 2014-11-19 | A kind of mouth mask proving installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204165874U true CN204165874U (en) | 2015-02-18 |
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| CN201420696709.5U Active CN204165874U (en) | 2014-11-19 | 2014-11-19 | A kind of mouth mask proving installation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501150A (en) * | 2016-10-25 | 2017-03-15 | 广西大学 | A kind of mouth mask strainability tester |
| CN106644883A (en) * | 2016-12-06 | 2017-05-10 | 中国人民解放军军事医学科学院微生物流行病研究所 | Mask sealing degree tester |
| 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 |
-
2014
- 2014-11-19 CN CN201420696709.5U patent/CN204165874U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501150A (en) * | 2016-10-25 | 2017-03-15 | 广西大学 | A kind of mouth mask strainability tester |
| CN106644883A (en) * | 2016-12-06 | 2017-05-10 | 中国人民解放军军事医学科学院微生物流行病研究所 | Mask sealing degree tester |
| CN106644883B (en) * | 2016-12-06 | 2023-09-22 | 中国人民解放军军事医学科学院微生物流行病研究所 | Mask tightness tester |
| 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 |
| CN109781608B (en) * | 2019-03-26 | 2021-06-15 | 华中科技大学 | Device and method for testing filtering performance of mask |
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