CN206787984U - A kind of test system of electrostatic precipitation principle trapping submicron particles - Google Patents
A kind of test system of electrostatic precipitation principle trapping submicron particles Download PDFInfo
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- CN206787984U CN206787984U CN201621120488.2U CN201621120488U CN206787984U CN 206787984 U CN206787984 U CN 206787984U CN 201621120488 U CN201621120488 U CN 201621120488U CN 206787984 U CN206787984 U CN 206787984U
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- electrostatic precipitation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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Abstract
The utility model discloses a kind of test system applied to air purification field using electrostatic precipitation principle trapping submicron particles.Described device mainly includes aerosol generator, the averagers of Kr 85, particle diameter ram, piston type seal box, electrostatic precipitation case, exhaust fan, HEPA filters, power supply, emission of ions plate, battery lead plate, particle size spectrum tester, computer, vavuum pump, flowmeter, ambient temperature and humidity and pressure tester, various connecting pipes and valve.The utility model test system complete display, calculation and analysis methods hold water, and have the advantages that device is simple, and processing cost is cheap, and operation maintenance is easy, energy-conserving and environment-protective, have important value for design air purifier.
Description
Technical field
It the utility model is related to a kind of air pollutants test device and method, and in particular to a kind of electrostatic precipitation principle is caught
Collect the test system of submicron particles.
Background technology
With the quickening of China's industrialization and urbanization process, environmental pollution getting worse, haze in all parts of the country in recent years
Weather takes place frequently, and scope is big, the length of duration, constitutes great threat to our life and work.The mankind 68%
Disease it is relevant with air pollution；20 cities of global pollution most serious, there are 16 positioned at China.With people's environmental consciousness
Enhancing and growth in the living standard, recognize importance of the clean air to health of human body all the more.
At present in China, the pollution of aerosol particle thing is the primary pollutant of majority cities.Particulate matter (PM) is
The particle and drop being made up of acids, organic chemistry, metal and soil or dust particle.People according to the generation of particle and
Particle is divided into 3 classes by human respiratory tract's deposition position：Superfine particulate matter (particle diameter ＜=0.1 μm), submicron particles PM1
(0.1 μm of ＜=1 μm of particle diameter ＜), coarse granule (particle diameter ＞=1 μm).Submicron Particles are usual and indirect life
Into, but be transformed by nanoscale and ultrafine dust by coalescence and a series of reaction of Atmospheric Chemistries.Submicron Particles
Diffusion be not so good as ultrafine dust, gravity settling velocity is not so good as micron particles thing again.It is sub- for any dust arrester
Micron particles are all the difficult points of dedusting.The visible ray in sunshine can be absorbed due to Submicron Particles again, is to influence air
The principal element of visibility, the submicron particles of high concentration can directly result in the formation of haze weather.Therefore research sub-micron
The purification mechanism of grain, the air cleaning unit new to design are significant.
Electrostatic technique is applied in industrial dedusting very early.With the development of technology, all kinds of air have been widely used in it
In cleaning equipment.The operation principle of electrostatic precipitation is：High-voltage electrostatic field is produced with high-voltage DC power supply, forms corona discharge.It is empty
When gas passes through corona zone, charged particle caused by corona can collide with the dust granules in air, on dust granules band after electric charge
In the presence of electric field force will directed movement, final deposit be collected, so as to get rid of the dust granules in air, reach
To the effect of purification of air.Research shows that electrostatic precipitator can trap the particle that particle diameter is less than 0.1 μm, and because of its facilities air
The advantages that resistance is small, arresting efficiency is high, no material consumption, turn into the major technique that contemporary Household Air Purifier is selected.Electrostatic precipitation
During, charged and collection and the voltage between pole plate and distance of particulate matter have direct relation, study these factors and electrostatic is removed
The influence of dirt efficiency is most important, and the design to later air purifier has directive significance.
Utility model content
The purpose of this utility model is to design a kind of test system of electrostatic precipitation principle trapping submicron particles, specific skill
Art scheme is as follows：
A kind of test system of electrostatic precipitation principle trapping submicron particles, mainly including in aerosol generator, Kr-85
With device, particle diameter ram, piston type seal box, electrostatic precipitation case, exhaust fan, HEPA filters, power supply, emission of ions
Plate, battery lead plate, particle size spectrum tester, computer, vavuum pump, flowmeter, ambient temperature and humidity and pressure tester, various companies
Adapter road and valve.Vavuum pump connection flow gauge is connected to electrostatic precipitation case by valve 17, produces the flowing pressure of whole system
Power.Aerosol particle thing caused by aerosol generator, enter after first passing through particle diameter ram in Kr-85 averagers progress electric charge
Handled with change；Air-flow after processing enters piston type seal case, and exhaust fan, gas are mounted with inside the piston type seal box
Colloidal sol enters electrostatic precipitation case after mixing.Particle size composes tester can measure electrostatic precipitation by three-way valve switching
The front and rear particle size distribution of effect, measured data transfer to computer；Ambient temperature and humidity and pressure tester and piston type
Seal box connects, temperature, humidity and pressure in detection case body.
The utility model generates the aerosol particle thing of polydispersion, aerosol particle thing generation number by aerosol generator
Amount number can be controlled by aerosol generator.
Particulate count concentration range is 0~10 caused by described aerosol generator8Individual/cm3。
The fine particulates concentration range of described particle size spectrum tester measurement is 0~108Individual/cm3, measurement
Particle size scope is in 5nm~1 μm, and Size segments is more than 32.
The purpose of this utility model is achieved through the following technical solutions：1) piston type seal box is clean：It is molten to close gas
Glue generator and valve 4, valve 8,10,17 is opened, start vavuum pump, the air being externally entering passes through HEPA filter cleanings
In laggard cartonning body.Start particle size spectrum tester monitoring piston type seal box endoparticle thing Particle density, when particulate matter grain
When footpath spectrum tester monitors that Particle density is close to zero in casing, it is believed that the casing by headroom, is at this moment closed
Vavuum pump and valve 8,10,17, close particle size spectrum tester 21.
2) electrostatic precipitation efficiency test：Start aerosol generator, open valve 4,8, regulating piston formula seal box piston
Position to it is most left and meanwhile start exhaust fan and particle size spectrum tester, when find piston type seal box endoparticle thing number it is dense
Angle value reaches and stably 106Individual/cm3Aerosol generator, valve 4,8 and exhaust fan are closed during rank；Connect power supply
13rd, 15, while open valve 10,17 and start vavuum pump, regulating three-way valve door 20, make particle size compose tester detecting/monitoring
Electrostatic precipitation case exit particle concentration start recording data；Piston type seal box piston position is observed, when reaching low order end
Close particle size spectrometer.The removal efficiency η under electrostatic interaction is calculated according to formula below1。
Above in formula, c1For the initial Particle density of piston type seal box particulate matter, unit/cm3；c2For under electrostatic interaction
Electrostatic precipitation case exit particulate count concentration, unit/cm3。
Allow aerosol generator to produce the aerosol of various concentrations, or change the parameter of electrostatic precipitator, for example change
Flow of spacing, the number of battery lead plate, aerosol between the voltage or polarity, battery lead plate of change emission of ions plate etc., can be tested
Obtain the removal efficiency under various operating modes.
The beneficial effects of the utility model are：The utility model provides a kind of electrostatic precipitation principle trapping submicron particles
Test system, device is simple, and processing cost is cheap, and operation maintenance is easy, energy-conserving and environment-protective, and tester is composed by particle size
The Size of particulate matter is obtained, the aerosol Submicron Particles removal efficiency under various operating modes is calculated by effectiveness formula.This
The test system and method that utility model is provided can be used for electrostatic precipitation design and air purifier cleanliness efficiency point
Analysis.
Brief description of the drawings
Fig. 1 is test system structure schematic diagram.
1 aerosol generator, 2 particle diameter rams, 3Kr-85 averagers, 4 valve a, 5 piston type seal boxs, 6 are mixed in figure
Close fan, 7 ambient temperature and humidities and pressure tester, 8 valve b, 9HEPA filter a, 10 valve c, 11 electrostatic precipitation casees, 12 from
Sub- expelling plate, 13 power supply a, 14 battery lead plates, 15 power supply b, 16HEPA filter b, 17 valve d, 18 flowmeters, 19
Vavuum pump, 20 three-way valves, 21 particle sizes spectrum tester, 22 computers.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is further illustrated with embodiment.But this embodiment is merely illustrative,
The scope of protection of the utility model is not limited by this embodiment.
As shown in figure 1, a kind of test system of electrostatic precipitation principle trapping submicron particles mainly includes 1 aerosol and occurred
Device, 2 particle diameter rams, 3Kr-85 averagers, 4 valve a, 5 piston type seal boxs, 6 exhaust fans, 7 ambient temperature and humidities and pressure
Tester, 8 valve b, 9HEPA filter a, 10 valve c, 11 electrostatic precipitation casees, 12 emission of ions plates, 13 power supply a, 14
Battery lead plate, 15 power supply b, 16HEPA filter b, 17 valve d, 18 flowmeters, 19 vavuum pumps, 20 three-way valves, 21 particles
Thing Size tester, 22 computers.The connection flow gauge 18 of vavuum pump 19 is simultaneously connected to electrostatic precipitation case 11 by valve d17, production
The flowing pressure of raw whole system.Aerosol particle thing caused by aerosol generator 1 leads to after the selection of particle diameter ram 2
Piping enters Kr-85 averagers 3 and carries out charging neutrality processing；Air-flow after processing enters piston type seal box 5, blended
Fan 6 by valve c10 enters electrostatic precipitation case 11 after being sufficiently mixed；Aerosol is after electrostatic interaction by HEPA filters
Discharged after b16 filterings.Particle size composes tester 21 and switches that can be measured before and after electrostatic precipitation by three-way valve 20
Grain thing particle diameter distribution and particulate count concentration, measured data transfer to computer 22；Ambient temperature and humidity and pressure tester 7 access
Temperature, humidity and pressure in piston type seal box detection case body；Power supply a13, b15 are the electricity of PMW control chips control
Source.
The utility model is in test process, it is contemplated that influence of the factor to the test result degree of accuracy.Because this reality
Test tries the thought based on control variate method, so ensureing the stabilization of the porch particulate count concentration of electrostatic precipitation case 11 to closing weight
Will.Conventional test platform is that the inlet and outlet of the batch (-type) of tester 21 measurement electrostatic precipitation case 11 are composed by particle size mostly
Grain thing Particle density, because this measurement existence time is poor, often there is deviation in the purification efficiency solved.So the utility model
The storage of aerosol particle is carried out from piston type seal box 5, in the presence of vavuum pump 19, flowmeter 18 and atmospheric pressure,
Aerosol particle thing concentration can keep stable, and this analysis to experimental result provides convenience.In addition the utility model
Particle diameter ram 2 is used, its gain effect is the filter screen life-span that can extend particle size spectrum tester 21.Because particle
Thing Size tester 21 can extract sample gas in test, and particle diameter ram can filter coarse granule before it extracts sample gas, protect
Its filter screen.
Operating procedure of the present utility model is as follows：
1) piston type seal box is clean：Aerosol generator 1 and valve a4 are closed, opens valve b8, c10, d17, is started
Vavuum pump 19, the air being externally entering are purified in laggard cartonning body by HEPA filters a9.Start particle size spectrum to survey
Try instrument 21 and monitor the endoparticle thing Particle density of piston type seal box 5, when particle size spectrum tester monitors casing endoparticle thing
When Particle density is close to zero, it is believed that the casing by headroom, at this moment close vavuum pump 19 and valve b8, c10,
D17, close particle size spectrum tester 21.
2) electrostatic precipitation efficiency test：Start aerosol generator 1, open valve a4, b8, regulating piston formula seal box 5
Piston position is to most left；Start exhaust fan 6 and particle size spectrum tester 21, when the discovery endoparticle of piston type seal box 5
Thing Particle density value reaches and stably 106Individual/cm3Aerosol generator 1, valve a4, b8 and exhaust fan 6 are closed during rank；
Power supply a13, b15 are connected, while opens valve c10, d17 and starts vavuum pump 19, regulating three-way valve door 20, makes particulate matter
Size tester 21 monitors the exit particle concentration start recording data of electrostatic precipitation case 11；Observe piston type seal box 5
Piston position, particle size spectrum tester 21 is closed when reaching low order end.Calculate according to formula below and gone under electrostatic interaction
Except efficiency eta1。
Above in formula, c1For the initial Particle density of piston type seal box endoparticle thing, unit/cm3；c2For electrostatic interaction
Lower electrostatic precipitation case exit particulate count concentration, unit/cm3。
Allow aerosol generator to produce the aerosol of various concentrations, or change the parameter of electrostatic precipitator, for example change
Flow of spacing, the number of battery lead plate, aerosol between the voltage or polarity, battery lead plate of change emission of ions plate etc., can be tested
Obtain the removal efficiency under various operating modes.
Claims (2)
1. a kind of test system of electrostatic precipitation principle trapping submicron particles mainly includes aerosol generator (1), particle diameter is hit
Hit device (2), Kr-85 averagers (3), valve a (4), piston type seal box (5), exhaust fan (6), ambient temperature and humidity and pressure
Tester (7), valve b (8), HEPA filters a (9), valve c (10), electrostatic precipitation case (11), emission of ions plate (12), confession
It is power supply a (13), battery lead plate (14), power supply b (15), HEPA filters b (16), valve d (17), flowmeter (18), true
Empty pump (19), three-way valve (20), particle size spectrum tester (21), computer (22)；Vavuum pump (19) connection flow gauge
(18) electrostatic precipitation case (11) and by valve d (17) is connected to, produces the flowing pressure of whole system；Aerosol generator
(1) aerosol particle thing caused by enters Kr-85 averagers (3) after the selection of particle diameter ram (2), by pipeline and carries out electricity
The processing of lotus neutralization, the air-flow after processing enter piston type seal box (5), blended fan (6) be sufficiently mixed after by valve c
(10) electrostatic precipitation case (11) is entered；Aerosol is discharged after electrostatic interaction after HEPA filters b (16) filterings；Particulate matter
Size tester (21) by three-way valve (20) switching can measure particle size distribution before and after electrostatic precipitation and
Grain thing Particle density, measured data transfer to computer (22)；Ambient temperature and humidity and pressure tester (7) access piston type seal box
Temperature, humidity and pressure in detection case body.
2. a kind of test system of electrostatic precipitation principle trapping submicron particles according to claim 1, it is characterized in that：It is logical
Cross after the particulate matter that aerosol generator (1) generates first passes through particle diameter ram (2) selection and neutralized again by Kr-85 averagers (3),
Enter piston type seal box (5) afterwards；Power supply a (13), b (15) are the power supply of PMW control chips control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621120488.2U CN206787984U (en) | 2016-10-13 | 2016-10-13 | A kind of test system of electrostatic precipitation principle trapping submicron particles |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621120488.2U CN206787984U (en) | 2016-10-13 | 2016-10-13 | A kind of test system of electrostatic precipitation principle trapping submicron particles |
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| CN206787984U true CN206787984U (en) | 2017-12-22 |
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| CN201621120488.2U Expired - Fee Related CN206787984U (en) | 2016-10-13 | 2016-10-13 | A kind of test system of electrostatic precipitation principle trapping submicron particles |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106560688A (en) * | 2016-10-13 | 2017-04-12 | 中国计量大学 | Test system of trapping sub-micron particles by using theory of electrostatic dust collection |
| CN108716992A (en) * | 2018-06-18 | 2018-10-30 | 宁波工程学院 | A kind of bipolar charge-cyclone dust removal experimental provision |
| CN111735750A (en) * | 2020-07-31 | 2020-10-02 | 北京核信锐视安全技术有限公司 | Device and method for detecting purification efficiency of aerosol protective equipment |
-
2016
- 2016-10-13 CN CN201621120488.2U patent/CN206787984U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106560688A (en) * | 2016-10-13 | 2017-04-12 | 中国计量大学 | Test system of trapping sub-micron particles by using theory of electrostatic dust collection |
| CN108716992A (en) * | 2018-06-18 | 2018-10-30 | 宁波工程学院 | A kind of bipolar charge-cyclone dust removal experimental provision |
| CN111735750A (en) * | 2020-07-31 | 2020-10-02 | 北京核信锐视安全技术有限公司 | Device and method for detecting purification efficiency of aerosol protective equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20181013 |
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| CF01 | Termination of patent right due to non-payment of annual fee |