CN108716992A - A kind of bipolar charge-cyclone dust removal experimental provision - Google Patents
A kind of bipolar charge-cyclone dust removal experimental provision Download PDFInfo
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- 239000000428 dust Substances 0.000 title claims abstract description 24
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- 239000010949 copper Substances 0.000 claims description 3
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
Abstract
Transmission system occurs by dust pelletizing system, aerosol for a kind of bipolar charge-cyclone dust removal experimental provision of the present invention and particle size distributed detection system is constituted.A kind of bipolar charge-cyclone dust removal experimental provision of the present invention, transmission system occurs for aerosol therein can control transmitted traffic, and then the particle concentration in accuracy controlling simulation aerosol by valve；Particle size distributed detection system therein can adapt to the detection that particle size is distributed in high and low concentration aerosol simultaneously, and the detection before and after bipolar charge-cyclone, easy switching are realized by three-way switch valve.The device of the invention can accurately be adjusted flow, particle concentration, bipolar charge voltage, and the pressure of the multiple positions of measurement device, experimental provision function are complete various simultaneously.
Description
Technical field
The invention belongs to waste gas dedusting technical field field more particularly to a kind of bipolar charge-cyclone dust removal experimental provisions.
Background technology
With the rapid development of the national economy, China some areas haze takes place frequently, arch-criminal is airborne particulate pollution
Object.Aerodynamically diameter（da）Size, airborne particulates can be divided into overall suspended pellet（TSPs, da<
100 μm）, pellet（PM10, da<10 μm）And lung particulate matter（PM2 .5, da<2 .5 μm）.With it is thicker
Airborne particulates are compared, and the grain size of PM2 .5 is small, are adsorbed with a large amount of poisonous and harmful substances, can be by blood and human body
Tissue resorption, and residence time length, fed distance in an atmosphere is remote, the influence to health and atmosphere quality is more
Greatly.The dust particles that the industries such as coal fired power generation, coal chemical industry, waste incineration, metallurgy, cement pass through air flue emission are airborne particulate dirts
Contaminate one of the main source of object.It is main at present since the dedusting technology removal efficiency of the grain size little tradition of PM2 .5 is relatively poor
Its its removal efficiency is improved in terms of two, first, traditional dedusting technology is improved, but effect is effective；Second is that passing through coalescence（Cohesion or
Reunite）Method by little particle coalescence at bulky grain, thus traditional dedusting technology can be used to strengthen removing PM2 .5 etc. small
Particle, later approach are the emphasis competitively developed at present.
The coalescence method of current dust particles include sound wave coalescence, coagulation simultaneously, magnetic coalescence, chemical coalescence, steam phase transforming
The technologies such as coalescence, wherein coagulation and research are more goed deep into, application prospect is larger.Again with bipolar charge-rapids in electric coagulating technique
Stream coagulating technique most has industrial applications foreground, and basic principle is referring to a kind of " bipolar charge coalescence for dust particles
Device, ZL2017100074193 ".Bipolar charge-turbulent flow coalescence device is the pipeline of one section of rectangle, which is divided into bipolar lotus
Electric section and turbulent flow coalescence section two parts.Bipolar charge section is the parallel channels of one group of positive and negative electric field action, and gas containing dust particles is logical
When crossing this section, positive and negative by its channel obtains positive charge and negative electrical charge respectively, subsequently into turbulent flow coalescence section coalescence；Turbulent flow coalescence
Setting turbulence columns or votex sheet in section, for enhancing less turbulence of the air-flow by this section when, to increase between charged particle
Collision probability, improve coalescence efficiency.The Basic Mechanism of bipolar charge-turbulent flow coagulating technique is that bipolar charge particle is made in turbulent flow
With the lower conveying and mixing for realizing space large scale, in the collision of Kolmogorov scales, coalescence, and Coulomb force is right in short distance
Particle coalescence plays facilitation.
Intergranular Coulomb force, which is bipolar charge-turbulent flow coagulating technique to the facilitation of turbulent flow coalescence, has greater efficiency
Key.If during cyclonic separation, there are the effects of turbulent flow coalescence, are filled then bipolar charge is arranged at cyclone inlet
It sets to bipolar charge distribution on particle lotus, the effect of cyclonic separation fine particle can be strengthened using the intergranular Coulomb force of bipolar charge
Rate.Some researches show that there are stronger turbulent flow coalescence effects in cyclone separator.It is inspired by the studies above, inventor has proposed
Bipolar charge technology is used before cyclone separator, is made bipolar charge distribution on fume duct fly ash lotus, is entered back into whirlwind field and coagulated
And detach, the arresting efficiency of fine particle can be strengthened, referring to " for flue gas dedusting bipolar charge-cyclone separator and
Technique, ZL 2016104375087 ".It is badly in need of proposing to be somebody's turn to do during experimental study bipolar charge-cyclonic separation particulate matter
The experiment porch of aspect research, it is therefore necessary to propose a kind of bipolar charge-cyclone dust removal experimental provision.
Invention content
The present invention provides a kind of bipolar charge-cyclone dust removal experimental provision to solve the above-mentioned state of the art, to meet
Related experiment demand.
It is a kind of bipolar charge-cyclone dust removal experiment dress that the present invention, which solves technical solution used by above-mentioned technical problem,
It sets, it is characterised in that by dust pelletizing system, aerosol transmission system and particle size distributed detection system occur for the device
It constitutes；The dust pelletizing system is by air filter（1）, first sampling section（4）, bipolar charge section（5）, cyclone separator（7）,
Particulate collection tank（8）, second sampling section（10）, the first frequency conversion fan（11）, bag filter（12）Composition；Described first
Sample section（4）With the second sampling section（10）Structure it is identical, be pipe, one end of pipe is import, the other end is outlet,
It opens there are one thief hatch the side of pipe；The bipolar charge section（5）For the square tube of both ends open, it is respectively equipped in its side
Positive electrode plate made of copper（5-1）And negative electrode plate（5-2）, it is being parallel to positive electrode plate（5-1）And negative electrode plate（5-2）Centre
It is provided with the ground connection pole plate of stainless steel（5-3）, the above and below of the bipolar charge section is the plate of transparent organic glass；Institute
The cyclone separator stated（7）For standard cyclone, it is provided with import, outlet and particulate matter outlet；The air filtration
Device（1）It is connected to first mouth of the first threeway by pipeline, and the air filter（1）Between the first threeway
The first air flow meter is provided on pipeline（2）；Second mouth of first threeway passes through pipeline and the first sampling section（4）
Inlet communication, and first threeway with first sampling section（4）Between pipeline on be provided with the first vacuum table（3）；It is described
First sampling section（4）Outlet pass through pipeline and bipolar charge section（5）One end connection, the bipolar charge section（5）It is another
One end passes through pipeline and cyclone separator（7）Inlet communication, and the bipolar charge section（5）And cyclone separator（7）It
Between pipeline on be provided with the second vacuum table（6）；The particulate collection tank（8）It is directly connected to cyclone separator（7）'s
In particulate matter outlet；The cyclone separator（7）Outlet pass through pipeline and second sampling section（10）Inlet communication, and institute
The cyclone separator stated（7）With the second sampling section（10）Between pipeline on be provided with third vacuum table（9）；Described second is adopted
Sample section（10）Outlet pass through pipeline and the first frequency conversion fan（11）Inlet communication；First frequency conversion fan（11）Go out
Mouth passes through pipeline and bag filter（12）Inlet communication；The bag filter（12）Outlet venting straight air；
The particle size distributed detection system is by pre-cut cutter（14）, diluter（16）, low pressure ram（18）, vacuum
Pump（19）, 5-linked air filter（20）And air compressor（21）Composition；The pre-cut cutter（14）For a cyclonic separation
Device, is equipped with inlet and outlet, and the cyclone separator can remove the particulate matter that grain size is more than 10 microns；The diluter
（16）Equipped with import, outlet, carrier gas import and exhaust outlet；The low pressure ram（18）Equipped with inlet and outlet；It is described
5-linked air filter（20）Equipped with inlet and outlet, has and remove particle, demisting, water removal, oil removing and deodorization functions；Described
Vacuum pump（19）Import pass through pipeline and low pressure ram（18）Outlet；The low pressure ram（18）Import
Pass through pipeline and third three-way switch valve（17）First connection；The third three-way switch valve（17）Second mouth pass through
Pipeline and diluter（16）Outlet, the diluter（16）Import pass through pipeline and the second three-way switch valve（15）
First mouth connection, the diluter（16）Carrier gas import pass through pipeline and 5-linked air filter（20）Outlet
Connection；The 5-linked air filter（20）Outlet pass through pipeline and air compressor（21）Outlet；Described
Three three-way switch valves（17）Third mouth pass through pipeline and the second three-way switch valve（15）Second mouth connection；Described second
Three-way switch valve（15）Third mouth pass through pipeline and pre-cut cutter（14）Outlet；The pre-cut cutter（14）Go out
Mouth passes through pipeline and the first three-way switch valve（13）First mouth connection；First three-way switch valve（13）Second mouth
It is connected to the first isokinetic sampling probe by pipeline, and the first isokinetic sampling probe passes through the first sampling section（4）Adopt
The setting of sample mouth samples section first（4）It is interior；First three-way switch valve（13）Third mouth pass through pipeline and the second constant speed
Sampling probe is connected to, and the second isokinetic sampling probe passes through the second sampling section（10）Thief hatch setting second sampling
Section（10）It is interior；
Transmission system occurs for the aerosol by fluid bed（23）With the second frequency conversion fan（27）Composition；The fluid bed
（23）Side be provided with pressure gauge（24）Mouth is sent with aerosol；The fluid bed（23）Aerosol send mouth pass through pipe
Road is connected to the third mouth of first threeway, and the fluid bed（23）It is arranged on pipeline between the first threeway
There is first butterfly valve（22）；Second frequency conversion fan（27）Outlet pass through pipeline and fluid bed（23）Bottom connection；Institute
The fluid bed stated（23）Top be connected to first mouth of the second threeway by pipeline, and the fluid bed（23）With second
It is provided with second butterfly valve on pipeline between threeway（25）；Second mouth of second threeway passes through pipeline and the second frequency conversion
Wind turbine（27）Inlet communication；The third mouth of second threeway is connected to one end of air inlet pipe, the air inlet pipe
The other end and atmosphere, and the second air flow meter is provided in the air inlet pipe（26）.
As an improvement, the diluter（16）Extension rate be 8 ~ 16 times.
It is further improved, the low pressure ram（18）Particulate cascade be 14 grades, the particle size range of detection is 10
Nanometer ~ 10 microns.
It improves again, the bipolar charge section（5）Positive electrode plate（5-1）And negative electrode plate（5-2）It is both provided with tungsten material
The prickle of matter.
A kind of workflow of bipolar charge-cyclone dust removal experimental provision of the present invention is as follows：
1）In the first frequency conversion fan（11）Swabbing action under, air pass through air filter（1）Afterwards using the first air stream
Gauge（2）Metering, into the first threeway；In the second frequency conversion fan（27）Pump drainage effect under, fluid bed（23）Interior particle
Object（The particulate matter that talcum powder or flyash or other needs are studied）It is fluidized to form aerosol, wherein most aerosol passes through
Second butterfly valve（25）Into the second threeway；A small amount of air passes through the second air flow meter（26）Also enter the second threeway afterwards（Steady
Determine under operating status, the amount of the partial air, which can automatically be equal to from aerosol, sends the air capacity that mouth is discharged, to keep flowing
Change bed（23）The stabilization of interior air pressure）The second frequency conversion fan is entered back into after being mixed with cycle aerosol（27）Import；Fluid bed
（23）Interior sub-fraction aerosol passes through first butterfly valve（22）It is discharged into after the first threeway is mixed with air and forms simulation aerosol
Into the first sampling section（4）；
2）At this point, the first three-way switch valve（13）Connection the first sampling section（4）With pre-cut cutter（14）, the second three-way switch valve
（15）It is connected to pre-cut cutter（14）And diluter（16）, third three-way switch valve（17）It is connected to diluter（16）With low pressure ram
（18）, in vacuum pump（19）And air compressor（21）Under conditions of unlatching, the first sampling section（4）Interior small part simulation gas is molten
Glue is popped one's head in into the first isokinetic sampling, then passes sequentially through the first three-way switch valve（13）, pre-cut cutter（14）, the second threeway switching
Valve（15）Into diluter（16）；Air passes through air compressor（21）, 5-linked air filter（20）Dilution is also entered afterwards
Device（16）Simulation aerosol is diluted to obtain dilution aerosol, part dilution aerosol emptying, another passes through third
Three-way switch valve（17）, low pressure ram（18）And vacuum pump（19）After empty, in low pressure ram（18）In middle aerosol
Particulate matter carries out classification according to particle size and collection and weighs, in this way according to extension rate and sampling tolerance can be calculated into
Enter the concentration distribution and total concentration of the particulate matter different-grain diameter before bipolar charge-cyclone separator；
3）Equally, when the first three-way switch valve（13）Connection the second sampling section（10）With pre-cut cutter（14）, remaining with（2）Step
It can be to obtain the concentration distribution of the particulate matter different-grain diameter after bipolar charge-cyclone separator, Yi Jizong when identical
Concentration；
4）When the first sampling section（4）With the second sampling section（10）Interior aerosol particle object concentration is not high, every less than 1000 micrograms
When cubic meter, the second three-way switch valve at this time（15）With third three-way switch valve（17）Connection, air compressor（21）, particulate matter
Particle diameter distribution detecting system, which need not be diluted sample gas, can be directly entered low pressure ram (18) progress particulate matter grain
Diameter distribution detection.
5）Utilize the concentration distribution by the particulate matter different-grain diameter before and after bipolar charge-cyclone separator, Yi Jizong
Concentration, can be with the total efficiency of dust collection and classified efficiency of computing device.
Compared with the prior art, the advantages of the present invention are as follows：1, transmission system, which occurs, for aerosol to be controlled by valve
Transmitted traffic, and then the particle concentration in accuracy controlling simulation aerosol；（2）Particle size distributed detection system can be same
The detection that particle size is distributed in the high and low concentration aerosols of Shi Shiying；（3）Particle size distributed detection system passes through threeway
Switching valve realizes the detection before and after bipolar charge-cyclone, easy switching；（4）The device of the invention can be to flow, particle
Object concentration, bipolar charge voltage are accurately adjusted, and the pressure of the multiple positions of measurement device, experimental provision function are complete simultaneously
It is various.
Description of the drawings
Fig. 1 is the flow diagram of bipolar charge-cyclone dust removal experimental provision of the present invention.
Fig. 2 is the overlooking structure diagram of the bipolar charge section of the present invention.
Wherein：1 is air filter, and 2 be the first air flow meter, and 3 be the first vacuum table, and 4 be the first sampling section, and 5 are
Bipolar charge section, 6 be the second vacuum table, and 7 be cyclone separator, and 8 be particulate collection tank, and 9 be third vacuum table, and 10 be second
Section is sampled, 11 be the first frequency conversion fan, and 12 be bag filter, and 13 be the first three-way switch valve, and 14 be pre-cut cutter, and 15 be the
Two three-way switch valves, 16 be diluter, 17 is third three-way switch valve, 18 is low pressure ram, 19 be vacuum pump, and 20 be 5-linked
Air filter, 21 be air compressor, and 22 be first butterfly valve, and 23 be fluid bed, and 24 be pressure gauge, and 25 be second butterfly valve, 26
It is the second frequency conversion fan for the second air flow meter, 27,5-1 is positive electrode plate, and 5-2 is negative electrode plate, and 5-3 is ground connection pole plate.
Specific implementation mode
Below in conjunction with attached drawing 1 and attached drawing 2, by embodiment, present invention is further described in detail.
Embodiment 1
By dust pelletizing system, aerosol transmission system and particle size point occur for a kind of bipolar charge-cyclone dust removal experimental provision
Cloth detecting system is constituted；Dust pelletizing system is by air filter（1）, first sampling section（4）, bipolar charge section（5）, cyclone separator
（7）, particulate collection tank（8）, second sampling section（10）, the first frequency conversion fan（11）, bag filter（12）Composition；First adopts
Sample section（4）With the second sampling section（10）Structure it is identical, be pipe, one end of pipe is import, the other end is outlet, in circle
It opens there are one thief hatch the side of pipe；Bipolar charge section（5）For the square tube of both ends open, its side be respectively equipped with it is made of copper just
Electrode plate（5-1）And negative electrode plate（5-2）, it is being parallel to positive electrode plate（5-1）And negative electrode plate（5-2）Centre be provided with not
The ground connection pole plate of rust steel（5-3）, positive electrode plate（5-1）And negative electrode plate（5-2）It is provided with the prickle of tungsten material；Bipolar charge
The above and below of section is the plate of transparent organic glass；Cyclone separator（7）For standard cyclone, it is provided with import, outlet
It is exported with particulate matter；Air filter（1）It is connected to first mouth of the first threeway by pipeline, and air filter（1）With
The first air flow meter is provided on pipeline between first threeway（2）；Second mouth of the first threeway passes through pipeline and
One sampling section（4）Inlet communication, and the first threeway with first sampling section（4）Between pipeline on be provided with the first vacuum table
（3）；The first sampling section（4）Outlet pass through pipeline and bipolar charge section（5）One end connection, bipolar charge section（5）
The other end pass through pipeline and cyclone separator（7）Inlet communication, and bipolar charge section（5）And cyclone separator（7）Between
Pipeline on be provided with the second vacuum table（6）；Particulate collection tank（8）It is directly connected to cyclone separator（7）Particulate matter go out
On mouth；Cyclone separator（7）Outlet pass through pipeline and second sampling section（10）Inlet communication, and cyclone separator（7）With
Second sampling section（10）Between pipeline on be provided with third vacuum table（9）；Second sampling section（10）Outlet by pipeline with
First frequency conversion fan（11）Inlet communication；First frequency conversion fan（11）Outlet pass through pipeline and bag filter（12）Into
Mouth connection；The bag filter（12）Outlet venting straight air；
Particle size distributed detection system is by pre-cut cutter（14）, diluter（16）, low pressure ram（18）, vacuum pump
（19）, 5-linked air filter（20）And air compressor（21）Composition；Pre-cut cutter（14）For a cyclone separator, be equipped with into
Mouth and outlet, cyclone separator can remove the particulate matter that grain size is more than 10 microns；Diluter（16）Equipped with import, outlet, dilution
Gas import and exhaust outlet, diluter（16）Extension rate be 16 times；The low pressure ram（18）Equipped with inlet and outlet,
Low pressure ram（18）Particulate cascade be 14 grades, the particle size range of detection is 10 nanometers ~ 5 microns；5-linked air filter
（20）Equipped with inlet and outlet, has and remove particle, demisting, water removal, oil removing and deodorization functions；Vacuum pump（19）Import pass through pipe
Road and low pressure ram（18）Outlet；Low pressure ram（18）Import pass through pipeline and third three-way switch valve（17）
First connection；Third three-way switch valve（17）Second mouth pass through pipeline and diluter（16）Outlet, dilution
Device（16）Import pass through pipeline and the second three-way switch valve（15）First mouth connection, diluter（16）Carrier gas import
Pass through pipeline and 5-linked air filter（20）Outlet；5-linked air filter（20）Outlet pass through pipeline and air
Compressor（21）Outlet；Third three-way switch valve（17）Third mouth pass through pipeline and the second three-way switch valve（15）
Second mouth connection；Second three-way switch valve（15）Third mouth pass through pipeline and pre-cut cutter（14）Outlet；
Pre-cut cutter（14）Outlet pass through pipeline and the first three-way switch valve（13）First mouth connection；First three-way switch valve
（13）Second mouth be connected to by pipeline and the first isokinetic sampling probe, and the first isokinetic sampling probe samples section by first
（4）Thief hatch setting first sample section（4）It is interior；First three-way switch valve（13）Third mouth pass through pipeline and second etc.
Fast sampling probe connection, and the second isokinetic sampling probe passes through the second sampling section（10）Thief hatch setting second sample section
（10）It is interior；
Transmission system occurs for aerosol by fluid bed（23）With the second frequency conversion fan（27）Composition；Fluid bed（23）Side setting
There is pressure gauge（24）Mouth is sent with aerosol；Fluid bed（23）Aerosol send mouth and pass through pipeline and first threeway
Third mouth is connected to, and fluid bed（23）It is provided with first butterfly valve on pipeline between the first threeway（22）；Second frequency conversion wind
Machine（27）Outlet pass through pipeline and fluid bed（23）Bottom connection；Fluid bed（23）Top pass through pipeline and the second threeway
The connection of first mouth, and fluid bed（23）And it is provided with second butterfly valve on the second pipeline between threeway（25）；Second threeway
Second mouth pass through pipeline and the second frequency conversion fan（27）Inlet communication；The third mouth of second threeway and the one of air inlet pipe
End connection, the other end and atmosphere of air inlet pipe, and the second air flow meter is provided in air inlet pipe（26）.
Embodiment 2
Except low pressure ram（18）Detection particle size range be 100 nanometers ~ 10 microns, diluter（16）Extension rate be 16
Except, remaining is same as Example 1.
Embodiment 3
Except low pressure ram（18）Detection particle size range be 100 nanometers ~ 5 microns, diluter（16）Extension rate be 12
Except, remaining is same as Example 1.
Claims (4)
1. a kind of bipolar charge-cyclone dust removal experimental provision, it is characterised in that the device is occurred by dust pelletizing system, aerosol
Transmission system and particle size distributed detection system are constituted；
The dust pelletizing system is by air filter（1）, first sampling section（4）, bipolar charge section（5）, cyclone separator（7）,
Particulate collection tank（8）, second sampling section（10）, the first frequency conversion fan（11）, bag filter（12）Composition；Described first
Sample section（4）With the second sampling section（10）Structure it is identical, be pipe, one end of pipe is import, the other end is outlet,
It opens there are one thief hatch the side of pipe；The bipolar charge section（5）For the square tube of both ends open, it is respectively equipped in its side
Positive electrode plate made of copper（5-1）And negative electrode plate（5-2）, it is being parallel to positive electrode plate（5-1）And negative electrode plate（5-2）Centre
It is provided with the ground connection pole plate of stainless steel（5-3）, the above and below of the bipolar charge section is the plate of transparent organic glass；
The cyclone separator（7）For standard cyclone, it is provided with import, outlet and particulate matter outlet；The air mistake
Filter（1）It is connected to first mouth of the first threeway by pipeline, and the air filter（1）Between the first threeway
Pipeline on be provided with the first air flow meter（2）；Second mouth of first threeway passes through pipeline and the first sampling section
（4）Inlet communication, and first threeway with first sampling section（4）Between pipeline on be provided with the first vacuum table（3）；
The first sampling section（4）Outlet pass through pipeline and bipolar charge section（5）One end connection, the bipolar charge section
（5）The other end pass through pipeline and cyclone separator（7）Inlet communication, and the bipolar charge section（5）And cyclonic separation
Device（7）Between pipeline on be provided with the second vacuum table（6）；The particulate collection tank（8）It is directly connected to cyclonic separation
Device（7）Particulate matter outlet on；The cyclone separator（7）Outlet pass through pipeline and second sampling section（10）Import connect
It is logical, and the cyclone separator（7）With the second sampling section（10）Between pipeline on be provided with third vacuum table（9）；It is described
Second sampling section（10）Outlet pass through pipeline and the first frequency conversion fan（11）Inlet communication；First frequency conversion fan
（11）Outlet pass through pipeline and bag filter（12）Inlet communication；The bag filter（12）Outlet venting straight it is big
Gas；
The particle size distributed detection system is by pre-cut cutter（14）, diluter（16）, low pressure ram（18）, vacuum
Pump（19）, 5-linked air filter（20）And air compressor（21）Composition；The pre-cut cutter（14）For a cyclonic separation
Device, is equipped with inlet and outlet, and the cyclone separator can remove the particulate matter that grain size is more than 10 microns；The diluter
（16）Equipped with import, outlet, carrier gas import and exhaust outlet；The low pressure ram（18）Equipped with inlet and outlet；It is described
5-linked air filter（20）Equipped with inlet and outlet, has and remove particle, demisting, water removal, oil removing and deodorization functions；Described
Vacuum pump（19）Import pass through pipeline and low pressure ram（18）Outlet；The low pressure ram（18）Import
Pass through pipeline and third three-way switch valve（17）First mouth connection；The third three-way switch valve（17）Second mouth
Pass through pipeline and diluter（16）Outlet, the diluter（16）Import pass through pipeline and the second three-way switch valve
（15）First mouth connection, the diluter（16）Carrier gas import pass through pipeline and 5-linked air filter（20）'s
Outlet；The 5-linked air filter（20）Outlet pass through pipeline and air compressor（21）Outlet；Institute
The third three-way switch valve stated（17）Third mouth pass through pipeline and the second three-way switch valve（15）Second mouth connection；Institute
The second three-way switch valve stated（15）Third mouth pass through pipeline and pre-cut cutter（14）Outlet；Described is precut
Device（14）Outlet pass through pipeline and the first three-way switch valve（13）First mouth connection；First three-way switch valve
（13）Second mouth be connected to by pipeline and the first isokinetic sampling probe, and the first isokinetic sampling probe passes through first
Sample section（4）Thief hatch setting first sample section（4）It is interior；First three-way switch valve（13）Third mouth pass through
Pipeline is connected to the second isokinetic sampling probe, and the second isokinetic sampling probe passes through the second sampling section（10）Thief hatch
Setting samples section second（10）It is interior；
Transmission system occurs for the aerosol by fluid bed（23）With the second frequency conversion fan（27）Composition；The fluid bed
（23）Side be provided with pressure gauge（24）Mouth is sent with aerosol；The fluid bed（23）Aerosol send mouth pass through pipe
Road is connected to the third mouth of first threeway, and the fluid bed（23）It is arranged on pipeline between the first threeway
There is first butterfly valve（22）；Second frequency conversion fan（27）Outlet pass through pipeline and fluid bed（23）Bottom connection；Institute
The fluid bed stated（23）Top be connected to first mouth of the second threeway by pipeline, and the fluid bed（23）With second
It is provided with second butterfly valve on pipeline between threeway（25）；Second mouth of second threeway passes through pipeline and the second frequency conversion
Wind turbine（27）Inlet communication；The third mouth of second threeway is connected to one end of air inlet pipe, the air inlet pipe
The other end and atmosphere, and the second air flow meter is provided in the air inlet pipe（26）.
2. the apparatus according to claim 1, it is characterised in that the diluter（16）Extension rate be 8 ~ 16 times.
3. the apparatus according to claim 1, it is characterised in that the low pressure ram（18）Particulate cascade be 14
The particle size range of grade, detection is 10 nanometers ~ 10 microns.
4. the apparatus according to claim 1, it is characterised in that the bipolar charge section（5）Positive electrode plate（5-1）With
Negative electrode plate（5-2）It is both provided with the prickle of tungsten material.
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Cited By (1)
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