CN105067501A - Filtering material performance detecting device for air filter - Google Patents
Filtering material performance detecting device for air filter Download PDFInfo
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- CN105067501A CN105067501A CN201510514943.0A CN201510514943A CN105067501A CN 105067501 A CN105067501 A CN 105067501A CN 201510514943 A CN201510514943 A CN 201510514943A CN 105067501 A CN105067501 A CN 105067501A
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Abstract
The invention relates to a filtering material performance detecting device for an air filter. The filtering material performance detecting device comprises an environment chamber connected with a comparison branch and an experiment branch. The comparison branch comprises a first flowmeter, a first suction pump and a first acquisition and detection device which are sequentially connected in series. The experiment branch comprises a filtering material fixing device, a second flowmeter, a second suction pump and a second acquisition detection device which are sequentially connected in series. The top of the environment chamber is provided with one or more material taking openings, and the top of each material taking opening is provided with a sealing cover plate. The environment chamber is detachably connected with one or more bases, and an outlet of the environment chamber is connected with the first flowmeter and the filtering material fixing device in parallel. The filtering material fixing device comprises two barrel-shaped structure, openings of the two barrel-shaped structure are detachably connected, the opening of each barrel-shaped structure is provided with a limiting groove, and the bottom of each barrel-shaped structure is provided with a guide pipe. One of the guide pipes is connected with the outlet of the environment chamber, the other guide pipe is connected with the second flowmeter, and a differential pressure gauge is connected between the two guide pipes. The filtering material performance detecting device is convenient to operate, low in cost, beneficial to application and popularization and capable of accurately measuring the purification effect and resistance performance of a filtering material to be measured.
Description
Technical field
The present invention relates to air strainer Performance Detection technical field, particularly relate to a kind of device for air filter filter medium Performance Detection.
Background technology
2013 " Chinese environmental quality publications " that Environmental Protection Department is issued are pointed out, China PM
2.5average annual concentration range is 26 ~ 160 μ g/m
3, mean concentration is 72 μ g/m
3, city up to standard ratio is only 4.1%, and obviously, in the whole nation, many areas have become the luxury goods of one way of life to clean air.In order to build healthy comfortable breathing environment, air strainer and air purifier have more and more been applied to indoor air purification field.According to happy health epoch market survey company limited data statistics in Beijing, within 2014, Chinese air purifier total sales volume reaches 5,790,000, and sales volume reaches 13,600,000,000 yuan.In Beijing, happy health epoch market survey company limited estimated from 2015, the sales volume in indoor air purification domestic consumer product market is by with the speed increment of annual compound growth rate 48%, the market capacity of the coming five years whole indoor air purification domestic consumer product is tired out and will be reached the market scale exceeded 100 billion, and has become the product class that household electrical appliances market rises quickly the fastest.
Techniques for Indoor Air Purification mainly contains Electrostatic technology, primarily efficient filter technology, medium air filtration technology, high efficiency filter technology, adsorption technology, high-level oxidation technology, photocatalysis oxidation technique and plasma technique, wherein, for the PM in purifying the air of a room
2.5deng particulate form gasoloid, usual employing high efficiency filter technology, therefore, the filter material of the multiple material such as, PP (polypropylene) and PTFE (teflon) fine based on polyester, polyamide, polypropylene and non-thermoplastic structure occur fast and upgrade.Relative to occurring and the filter material kind upgraded fast, other certification of filter material filtration grade but backwardness relatively, usually European standard is adopted to divide at present: the general mensuration (EN779:2002) of ventilating air filtrator-strainability and the mensuration (EN1822-2009) of high efficiency particle air filter-strainability, but not only require high owing to adopting the checkout equipment applied during this European standard certification, complicated operation, make to be unfavorable for applying, and its test dirt source used mostly is liquid aersol, with the PM in real atmosphere
2.5particle Aerosol Properties has certain difference, makes testing result accuracy lower.
In addition, filter material filtering velocity evaluates the key parameter of filtering element purifying property and resistance, but the filter material of primary air filtrator is fold up use with V-type mostly on market, a lot of producer only marks length and width and the height of filtering element, and do not mark the folding number of plies of filter material or clean these key parameters of effective filtration area, which results in people to the error evaluation of filter material filtering velocity and understanding.When filter material with V-type fold up filter time, the clean effective filtration area of filter material, much larger than front face area, makes same filtering element, under same air quantity condition, face wind speed and filtering velocity difference very large.Due to some people, the face wind speed of takeing for is not quite understood to the concept of filtering velocity in air strainer and just equal filtering velocity, therefore cause user accurately can not learn clean-up effect and the resistance performance of filter material to be measured, be therefore unfavorable for applying of air strainer.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of device for air filter filter medium Performance Detection, not only can accurately measure clean-up effect and the resistance performance of filter material to be measured, and easy to operate, cost is low, be beneficial to and apply.
For realizing above-mentioned technical purpose, the present invention takes following technical scheme: a kind of device for air filter filter medium Performance Detection, it comprises an environmental chamber, a contrast branch road and an experiment branch road, and described contrast branch road is all connected with described environmental chamber with experiment branch road; Described contrast branch road comprise be sequentially connected in series first-class gauge, the first suction pump and the first collecting and detecting device; Described experiment branch road comprise be sequentially connected in series filter material stationary installation, second gauge, the second suction pump and the second collecting and detecting device; Described environmental chamber is the closed container of a capacity more than 600 liters, described environmental chamber top is arranged more than onely gets thing mouth, get thing mouth top described in each and one seal cover board is set, described environmental chamber removably connects more than one base for immobilized particles thing aerosol generating device, described environmental chamber also arranges an outlet, and described outlet is connected in parallel described first-class gauge and filter material stationary installation; Described filter material stationary installation comprises two barrel shaped structure, the opening part of two described barrel shaped structure removably connects, wherein the opening part of arbitrary described barrel shaped structure arranges one for placing the stopper slot of filter material to be measured, the internal diameter of barrel shaped structure described in each is all at more than 3cm, the bottom of barrel shaped structure described in each stretches out respectively and arranges the conduit of a connection barrel shaped structure inside, wherein conduit described in is connected with the outlet of described environmental chamber, conduit described in another is connected with described second gauge, connects a differential manometer described in two between conduit.
All arrange the pyramidal structure of a hollow in barrel shaped structure described in each, one end of described pyramidal structure is fixedly installed on the opening inner side of described barrel shaped structure, and the other end is communicated with described conduit.
A ceiling fan is fixedly connected with inside described seal cover board.
Described base adopts bolt arrangement, and the screw rod end opens of described bolt arrangement has the mounting groove for plugging fixing described particle aerosol generating device.
In described stopper slot, an O-ring seal is also set.
Described first collecting and detecting device and the second collecting and detecting device all adopt laser dust particle size analyzer.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention is owing to arranging environmental chamber and the contrast branch road be connected with environmental chamber removably connected with particle aerosol generating device and testing branch road, therefore when measuring clean-up effect and the resistance performance of filter material to be measured, not only can accurately measure clean-up effect and the resistance performance of filter material to be measured, and easy to operate, cost is low, be beneficial to and apply.2, the present invention owing to arranging the pyramidal structure of hollow in filter material stationary installation, therefore, it is possible to make particle gasoloid to be evenly diffused on filter material to be measured, and then effectively improves the accuracy of measurement result.3, the present invention owing to arranging ceiling fan inside the seal cover board at environmental chamber top, therefore, it is possible to make particle gasoloid be distributed in quickly and evenly in environmental chamber.4, the present invention is owing to specifically arranging the barrel shaped structure internal diameter of filter material stationary installation, and then effectively determines the effective filtration area of filter material to be measured.Project organization of the present invention is simple, easy to operate, and cost is low can be widely used in air strainer Performance Detection technical field.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the forward sight structural representation of environmental chamber of the present invention;
Fig. 3 is the backsight structural representation of environmental chamber of the present invention;
Fig. 4 is the detonation configuration schematic diagram of filter material stationary installation of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in figures 1-4, the device for air filter filter medium Performance Detection of the present invention comprises an environmental chamber 1, and contrasts branch road 2 and an experiment branch road 3, and contrast branch road 2 is all connected with environmental chamber 1 with experiment branch road 3; Contrast branch road 2 comprises first-class gauge 21, first suction pump 22 and the first collecting and detecting device 23 that are sequentially connected in series; Experiment branch road 3 comprise be sequentially connected in series filter material stationary installation 31, second gauge 32, second suction pump 33 and the second collecting and detecting device 34;
Environmental chamber 1 is the closed container of a capacity more than 600 liters, environmental chamber 1 top is arranged more than onely gets thing mouth, each is got thing mouth top and arranges a seal cover board 11, environmental chamber 1 removably connects more than one base 12 for immobilized particles thing aerosol generating device, environmental chamber 1 is also arranged an outlet 13, outlet 13 is connected in parallel first-class gauge 21 and filter material stationary installation 31 by a three-way connection (not shown);
Filter material stationary installation 31 comprises two barrel shaped structure 311, the opening part of two barrel shaped structure 311 removably connects, wherein the opening part of arbitrary barrel shaped structure 311 arranges one for placing the stopper slot (not shown) of filter material 5 to be measured, the internal diameter of each barrel shaped structure 311 all at more than 3cm, and then ensures that the effective filtration area of filter material 5 to be measured is at 25cm
2above, the bottom of each barrel shaped structure 311 stretches out respectively and arranges the conduit 312 of connection barrel shaped structure 311 inside, wherein a conduit 312 is connected with three-way connection, another conduit 312 is connected with second gauge 32, each conduit 312 is all arranged between arm 313, two arm 313 and connect differential manometer 4.
In a preferred embodiment, can evenly be diffused on filter material 5 to be measured to make particle gasoloid, the pyramidal structure 314 of one hollow is all set in each barrel shaped structure 311, one end of pyramidal structure 314 is fixedly installed on the opening inner side of barrel shaped structure 311, and the other end is communicated with conduit 312.
In a preferred embodiment, in order to make the particle gasoloid in environmental chamber 1 can be evenly distributed in environmental chamber 1, inside seal cover board 11, a ceiling fan can be fixedly connected with; Power lead for the ease of ceiling fan can be drawn from environmental chamber 1, environmental chamber 1 can also be arranged a line outlet 14.
In a preferred embodiment, base 12 is roughly the same with the bolt arrangement in the middle of prior art, its difference is: the end opens of screw rod has the mounting groove for plugging immobilized particles thing aerosol generating device, environmental chamber 1 is provided with for cooperatively interacting the screw be connected with the external thread on screw rod.
In a preferred embodiment, can also arrange an O-ring seal 315 in stopper slot, during use, filter material 5 to be measured is placed in stopper slot by O-ring seal 315.
In a preferred embodiment, environmental chamber 1 can adopt a capacity to be the square of 1000L.
In a preferred embodiment, in order to the resistance of filter material 5 to be measured under can accurately measuring different filtering velocity, differential manometer 4 can select precision to be the digital pressure difference meter of 1 ~ 2Pa.
In a preferred embodiment, the first collecting and detecting device 23 and the second collecting and detecting device 34 all can adopt laser dust particle size analyzer.
The use procedure of the device for air filter filter medium Performance Detection of the present invention is described in detail below in conjunction with specific embodiment:
If 1 runs into haze weather, can by the PM in air
2.5particulate collection is to environmental chamber 1, if do not run into haze weather, in the mounting groove cigarette of lighting can being selected to plug as particle aerosol generating device be fixed on base 12, and removably connect plugging the base 12 being fixed with the cigarette of lighting with environmental chamber 1; Open ceiling fan, make the PM that cigarette produces
2.5be evenly distributed in environmental chamber 1, and filter material 5 to be measured is placed in filter material stationary installation 31;
2, opening the first suction pump 22 and the second suction pump 33 respectively, making the filtering velocity contrasting branch road 2 and experiment branch road 3 be 5.3cm/s by adjusting first-class gauge 21 and second gauge 32; Under the effect of the first suction pump 22, the PM in environmental chamber 1
2.5particle gasoloid is by the laser particle size dust instrument collection that contrasts on branch road 2 and detect the PM before being filtered by filter material 5 to be measured
2.5concentration C
f;
Under the effect of the second suction pump 33, the PM in environmental chamber 1
2.5particle gasoloid enters in a pyramidal structure 314 of filter material stationary installation 31 by conduit 312, under the effect of this pyramidal structure 314, and the PM in environmental chamber 1
2.5particle gasoloid is evenly dispersed on filter material 5 to be measured, after PM2.5 particle gasoloid in filter material to be measured 5 pairs of environmental chambers 1 filters, remaining gas is by another pyramidal structure 314 of filter material stationary installation 31 and conduit 312, and by the laser particle size dust instrument collection on experiment branch road 3 and detect filter material 5 to be measured filter after PM
2.5concentration C
m, so far by the computing formula of a filtration efficiency, can draw the purification efficiency P of filter material 5 to be measured, wherein, the computing formula of a filtration efficiency is:
P＝(1-C
m/C
f)×100％
In formula, P represents the purification efficiency of filter material 5 to be measured; C
mrepresent the PM after filter material 5 to be measured filtration
2.5concentration; C
frepresent the PM before filter material 5 to be measured filtration
2.5concentration;
While the clean-up effect measuring filter material 5 to be measured, differential manometer 4 detects the gaseous tension that filter material 5 to be measured filters front and back in real time, therefore can be measured the resistance performance of filter material 5 to be measured in real time by differential manometer 4;
3, filtering velocity-purification efficiency curve and the filtering velocity-resistance curve of filter material can be drawn by changing filtering velocity, clearly can be shown purification efficiency and the resistance performance of filter material 5 to be measured by these the two kinds of curves drawn.
In addition, the maximum rate of filtering required when testing individual filter material strainability according to the mensuration (EN1822-2009) of high efficiency particle air filter-strainability is 8cm/s, be 13.4L/min by the flow of filter material to be measured, because the every 1min of laser particle size dust instrument reads a number, read three numbers to average, therefore the actual test duration only needs 3min, reserved 1min before and after test, therefore, even the present invention measures with maximum filtering velocity 8cm/s, one group of experiment can be completed within 5min, and when often group experiment completes, the gas volume of environmental chamber 1 internal consumption is less than 134L, relative to the capacity of environmental chamber 1000L, PM in environmental chamber 1
2.5concentration do not have too large change, namely illustrate that the initial concentration in environmental chamber 1 can be guaranteed.
Above-described embodiment is only for illustration of the present invention; wherein the structure of each parts, connected mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (7)
1. for a device for air filter filter medium Performance Detection, it is characterized in that: it comprises an environmental chamber, a contrast branch road and an experiment branch road, and described contrast branch road is all connected with described environmental chamber with experiment branch road; Described contrast branch road comprise be sequentially connected in series first-class gauge, the first suction pump and the first collecting and detecting device; Described experiment branch road comprise be sequentially connected in series filter material stationary installation, second gauge, the second suction pump and the second collecting and detecting device;
Described environmental chamber is the closed container of a capacity more than 600 liters, described environmental chamber top is arranged more than onely gets thing mouth, get thing mouth top described in each and one seal cover board is set, described environmental chamber removably connects more than one base for immobilized particles thing aerosol generating device, described environmental chamber also arranges an outlet, and described outlet is connected in parallel described first-class gauge and filter material stationary installation;
Described filter material stationary installation comprises two barrel shaped structure, the opening part of two described barrel shaped structure removably connects, wherein the opening part of arbitrary described barrel shaped structure arranges one for placing the stopper slot of filter material to be measured, the internal diameter of barrel shaped structure described in each is all at more than 3cm, the bottom of barrel shaped structure described in each stretches out respectively and arranges the conduit of a connection barrel shaped structure inside, wherein conduit described in is connected with the outlet of described environmental chamber, conduit described in another is connected with described second gauge, connects a differential manometer described in two between conduit.
2. a kind of device for air filter filter medium Performance Detection as claimed in claim 1, it is characterized in that: the pyramidal structure that a hollow is all set in barrel shaped structure described in each, one end of described pyramidal structure is fixedly installed on the opening inner side of described barrel shaped structure, and the other end is communicated with described conduit.
3. a kind of device for air filter filter medium Performance Detection as claimed in claim 1, is characterized in that: be fixedly connected with a ceiling fan inside described seal cover board.
4. a kind of device for air filter filter medium Performance Detection as claimed in claim 2, is characterized in that: be fixedly connected with a ceiling fan inside described seal cover board.
5. a kind of device for air filter filter medium Performance Detection as claimed in claim 1 or 2 or 3 or 4, it is characterized in that: described base adopts bolt arrangement, and the screw rod end opens of described bolt arrangement has the mounting groove for plugging fixing described particle aerosol generating device.
6. a kind of device for air filter filter medium Performance Detection as claimed in claim 1 or 2 or 3 or 4, is characterized in that: also arrange an O-ring seal in described stopper slot.
7. a kind of device for air filter filter medium Performance Detection as claimed in claim 1 or 2 or 3 or 4, is characterized in that: described first collecting and detecting device and the second collecting and detecting device all adopt laser dust particle size analyzer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510514943.0A CN105067501A (en) | 2015-08-20 | 2015-08-20 | Filtering material performance detecting device for air filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510514943.0A CN105067501A (en) | 2015-08-20 | 2015-08-20 | Filtering material performance detecting device for air filter |
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| CN201510514943.0A Pending CN105067501A (en) | 2015-08-20 | 2015-08-20 | Filtering material performance detecting device for air filter |
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| CN105445166A (en) * | 2015-12-27 | 2016-03-30 | 北京工业大学 | Detection method used for rejection performance of particulate matters of filter in drain hole of dam body |
| CN106680184A (en) * | 2017-02-25 | 2017-05-17 | 河北科技大学 | Air filter material filtration performance testing device and testing method |
| CN108982138A (en) * | 2018-06-11 | 2018-12-11 | 上海哈克过滤科技股份有限公司 | The device for fast detecting of cylindrical empty air filter windage |
| CN109269956A (en) * | 2018-10-17 | 2019-01-25 | 华北电力大学 | It is a kind of for testing the experimental provision of microfluid impact type filter capability |
| CN109406654A (en) * | 2018-11-06 | 2019-03-01 | 中国建材检验认证集团股份有限公司 | Material for air purification test device and air cleaning filter material purification efficiency detection method |
| CN111122406A (en) * | 2018-10-31 | 2020-05-08 | 北新集团建材股份有限公司 | Mineral wool board performance detection device and detection method |
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Application publication date: 20151118 |