CN208420395U - 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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Abstract
Transmission system occurs by dust pelletizing system, aerosol for a kind of bipolar charge-cyclone dust removal experimental provision of the utility model and particle size distributed detection system is constituted.A kind of bipolar charge-cyclone dust removal the experimental provision of the utility model, 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 utility model can accurately be adjusted flow, particle concentration, bipolar charge voltage, and the pressure of the multiple positions of measurement device simultaneously, the complete multiplicity of experimental provision function.
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 technique
With the rapid development of the national economy, China some areas haze takes place frequently, arch-criminal is airborne particulate pollution
Object.The aerodynamically size of diameter (da), airborne particulates can be divided into overall suspended pellet (TSPs, da <
100 μm), pellet (PM10, da < 10 μm) and lung particulate matter (.5 μm of PM2 .5, da < 2).With it is thicker
Airborne particulates are compared, and the partial 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, conveying distance in an atmosphere is remote, the influence to human 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 partial size little tradition of PM2 .5 is relatively poor
Its its removal efficiency is improved in terms of two, first is that improving traditional dedusting technology, but effect is effective；Second is that by 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 study more deeply, application prospect it is larger.Again with bipolar charge-rapids in electric coagulating technique
Stream coagulating technique most has industrial applications prospect, 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.Bipolar charge-turbulent flow coagulating technique Basic Mechanism 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 scale, coalescence, and Coulomb force is right in short distance
Particle coalescence plays facilitation.
Intergranular Coulomb force is that bipolar charge-turbulent flow coagulating technique has greater efficiency to the facilitation of turbulent flow coalescence
Key.If during cyclonic separation, there are the effects of turbulent flow coalescence, fill 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.By the inspiration of the studies above, inventor is had 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 separate, 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.
Summary of the invention
The present invention is to solve the above-mentioned state of the art and provide a kind of bipolar charge-cyclone dust removal experimental provision, 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 by air filter (1), first sampling section (4), bipolar charge section (5), cyclone separator (7),
Particulate collection tank (8), the second sampling section (10), the first frequency conversion fan (11), bag filter (12) composition；Described first
Sampling section (4) is identical with the second sampling structure of section (10), is round tube, and one end of round tube is import, the other end is outlet,
The side of round tube is provided with a thief hatch；The bipolar charge section (5) is the square tube of both ends open, is respectively equipped in its side
Positive electrode plate (5-1) made of copper and negative electrode plate (5-2), in the centre for being parallel to positive electrode plate (5-1) and negative electrode plate (5-2)
It is provided with the ground connection pole plate (5-3) of stainless steel, the above and below of the bipolar charge section is the plate of transparent organic glass；Institute
The cyclone separator (7) stated is standard cyclone, is provided with import, outlet and particulate matter outlet；The air filtration
Device (1) is connected to by pipeline with first mouth of the first threeway, and between the air filter (1) and the first threeway
The first air flow meter (2) are provided on pipeline；Second mouth of first threeway passes through pipeline and the first sampling section (4)
Inlet communication, and first threeway and first sampling section (4) between pipeline on be provided with the first vacuum table (3)；It is described
The outlet of the first sampling section (4) be connected to one end of bipolar charge section (5) by pipeline, the bipolar charge section (5) it is another
One end by the inlet communication of pipeline and cyclone separator (7), 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) is directly connected to cyclone separator (7)
In particulate matter outlet；The outlet of the cyclone separator (7) samples the inlet communication of section (10), and institute by pipeline and second
Third vacuum table (9) are provided on pipeline between the cyclone separator (7) stated and the second sampling section (10)；Described second is adopted
The outlet of sample section (10) passes through the inlet communication of pipeline and the first frequency conversion fan (11)；First frequency conversion fan (11) goes out
Mouth passes through the inlet communication of pipeline and bag filter (12)；The outlet venting straight atmosphere of the bag filter (12)；
The particle size distributed detection system 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) is a whirlwind
Separator, is equipped with inlet and outlet, and the cyclone separator can remove the particulate matter that partial size is greater than 10 microns；The dilution
Device (16) is equipped with import, outlet, carrier gas import and exhaust outlet；The low pressure ram (18) is equipped with inlet and outlet；Institute
The 5-linked air filter (20) stated is equipped with inlet and outlet, has and removes particle, demisting, water removal, oil removing and deodorization functions；It is described
The import of vacuum pump (19) pass through the outlet of pipeline and low pressure ram (18)；The low pressure ram (18) into
Mouth is connected to by pipeline with the first of third three-way switch valve (17)；Second mouth of the third three-way switch valve (17) is logical
The outlet of pipeline Yu diluter (16) is crossed, the import of the diluter (16) passes through pipeline and the second three-way switch valve
(15) first mouth connection, the carrier gas import of the diluter (16) pass through pipeline and 5-linked air filter (20)
Outlet；The outlet of the 5-linked air filter (20) passes through the outlet of pipeline and air compressor (21)；Institute
The third mouth for stating third three-way switch valve (17) is connected to by pipeline with second mouth of the second three-way switch valve (15)；It is described
The third mouth of second three-way switch valve (15) passes through the outlet of pipeline and pre-cut cutter (14)；The pre-cut cutter (14)
Outlet be connected to first mouth of the first three-way switch valve (13) by pipeline；The second of first three-way switch valve (13)
A mouth is connected to by pipeline with the first isokinetic sampling probe, and the first isokinetic sampling probe passes through the first sampling section (4)
Thief hatch setting first sampling section (4) in；The third mouth of first three-way switch valve (13) passes through pipeline and second
Isokinetic sampling, which pops one's head in, to be connected to, and the second isokinetic sampling probe is arranged by the thief hatch of the second sampling section (10) second
It samples in section (10)；
The aerosol occurs transmission system and is made of fluidized bed (23) and the second frequency conversion fan (27)；The fluidisation
The side of bed (23) is provided with pressure gauge (24) and aerosol sends mouth；The aerosol of the fluidized bed (23) sends mouth and passes through
Pipeline is connected to the third mouth of first threeway, and is set on the pipeline between the fluidized bed (23) and the first threeway
It is equipped with first butterfly valve (22)；The outlet of second frequency conversion fan (27) is connected to by pipeline with the bottom of fluidized bed (23)；
The top of the fluidized bed (23) is connected to by pipeline with first mouth of the second threeway, and the fluidized bed (23) and the
Second butterfly valve (25) are provided on pipeline between two threeways；Second mouth of second threeway is become by pipeline and second
The inlet communication of frequency blower (27)；The third mouth of second threeway is connected to one end of air inlet pipe, the air inlet pipe
The other end be communicated with the atmosphere, and the second air flow meter (26) are provided in the air inlet pipe.
As an improvement, the extension rate of the diluter (16) is 8 ~ 16 times.
It is further improved, the particulate cascade of the low pressure ram (18) is 14 grades, and the particle size range of detection is 10
Nanometer ~ 10 microns.
It improves again, the positive electrode plate (5-1) and negative electrode plate (5-2) of the bipolar charge section (5) are provided with tungsten material
The prickle of matter.
A kind of bipolar charge-cyclone dust removal experimental provision workflow of the invention is as follows:
1) under the swabbing action of the first frequency conversion fan (11), air is after air filter (1) using the first sky
The metering of air-flow meter (2), into the first threeway；Under the pump drainage effect of the second frequency conversion fan (27), in fluidized bed (23)
Particulate matter (particulate matter that talcum powder or flyash or other needs are studied) is fluidized to form aerosol, wherein most aerosol
Enter the second threeway by second butterfly valve (25)；A small amount of air also enters the second threeway after the second air flow meter (26)
(in a stable operation state, the amount of the partial air, which can automatically be equal to from aerosol, sends the air capacity that mouth is discharged, to protect
Hold the stabilization of fluidized bed (23) interior air pressure) mixed with circulation aerosol after enter back into the imports of the second frequency conversion fan (27)；Fluidisation
Bed (23) in sub-fraction aerosol by first butterfly valve (22) be discharged into after the first threeway mixes with air formed simulate gas it is molten
Glue enters the first sampling section (4)；
2) at this point, the first sampling section (4) of the first three-way switch valve (13) connection and pre-cut cutter (14), the second threeway switching
Valve (15) is connected to pre-cut cutter (14) and diluter (16), and third three-way switch valve (17) is connected to diluter (16) and low pressure is hit
Device (18), under conditions of vacuum pump (19) and air compressor (21) are opened, the small part in the first sampling section (4) simulates gas
Colloidal sol is popped one's head in into the first isokinetic sampling, then pass sequentially through the first three-way switch valve (13), pre-cut cutter (14), the second threeway are cut
Valve (15) are changed into diluter (16)；Air also enters dilute after air compressor (21), 5-linked air filter (20)
It releases device (16) and is diluted to obtain dilution aerosol to simulation aerosol, a part dilution aerosol emptying, another passes through the
Three three-way switch valves (17), low pressure ram (18) and vacuum pump (19) empty afterwards, in low pressure ram (18) in aerosol
Particulate matter carry out classification according to particle size and collection and weigh, can be calculated according to extension rate and sampling tolerance in this way
The concentration distribution and total concentration of particulate matter different-grain diameter before into bipolar charge-cyclone separator；
3) equally, when the second sampling section (10) and pre-cut cutter (14) of the first three-way switch valve (13) connection, remaining and (2)
Step can be with when identical, obtains the concentration distribution of the particulate matter different-grain diameter after bipolar charge-cyclone separator, with
And total concentration；
4) the aerosol particle object concentration sampled in section (4) and the second sampling section (10) when first is not high, micro- lower than 1000
At gram every cubic metre, the second three-way switch valve (15) is connected to third three-way switch valve (17) at this time, air compressor (21),
Grain object particle diameter distribution detection system, which does not need to be diluted sample gas, can be directly entered low pressure ram (18) progress particle
The detection of object particle diameter distribution.
5) concentration distribution by the particulate matter different-grain diameter before and after bipolar charge-cyclone separator, Yi Jizong are utilized
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 occurs for aerosol can 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 aerosol 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
Multiplicity.
Detailed description of the invention
Fig. 1 is bipolar charge of the invention-cyclone dust removal experimental provision flow diagram.
Fig. 2 is the overlooking structure diagram of bipolar charge section of the 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 fluidized 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 embodiment
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 particulate matter grain occur for a kind of bipolar charge-cyclone dust removal experimental provision
Diameter distributed detection system is constituted；Dust pelletizing system is by air filter (1), the first sampling section (4), bipolar charge section (5), whirlwind point
From device (7), particulate collection tank (8), the second sampling section (10), the first frequency conversion fan (11), bag filter (12) composition；The
One sampling section (4) is identical with the second sampling structure of section (10), is round tube, and one end of round tube is import, the other end is outlet,
A thief hatch is provided in the side of round tube；Bipolar charge section (5) is the square tube of both ends open, is respectively equipped with copper in its side
Positive electrode plate (5-1) and negative electrode plate (5-2), in the intermediate setting for being parallel to positive electrode plate (5-1) and negative electrode plate (5-2)
There is the ground connection pole plate (5-3) of stainless steel, positive electrode plate (5-1) and negative electrode plate (5-2) are provided with the prickle of tungsten material；It is bipolar
Charged section of above and below is the plate of transparent organic glass；Cyclone separator (7) be standard cyclone, be provided with import,
Outlet and particulate matter outlet；Air filter (1) is connected to by pipeline with first mouth of the first threeway, and air filter
(1) it is provided on the pipeline between the first threeway the first air flow meter (2)；Second mouth of the first threeway passes through pipeline
The inlet communication for sampling section (4) with first, and the first negative pressure is provided on the pipeline between the first threeway and the first sampling section (4)
Table (3)；The outlet of first sampling section (4) is connected to by pipeline with one end of bipolar charge section (5), bipolar charge section
(5) the other end by the inlet communication of pipeline and cyclone separator (7), and bipolar charge section (5) and cyclone separator (7) it
Between pipeline on be provided with the second vacuum table (6)；Particulate collection tank (8) is directly connected to the particulate matter of cyclone separator (7)
In outlet；The outlet of cyclone separator (7) samples the inlet communication of section (10), and cyclone separator (7) by pipeline and second
Third vacuum table (9) are provided on pipeline between the second sampling section (10)；The outlet of second sampling section (10) passes through pipeline
With the inlet communication of the first frequency conversion fan (11)；The outlet of first frequency conversion fan (11) passes through pipeline and bag filter (12)
Inlet communication；The outlet venting straight atmosphere of the bag filter (12)；
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) be a cyclone separator, be equipped with into
Mouth and outlet, cyclone separator can remove the particulate matter that partial size is greater than 10 microns；Diluter (16) is equipped with import, outlet, dilution
Gas import and exhaust outlet, the extension rate of diluter (16) are 16 times；The low pressure ram (18) is equipped with inlet and outlet,
The particulate cascade of low pressure ram (18) is 14 grades, and the particle size range of detection is 10 nanometers ~ 5 microns；5-linked air filter
(20) it is equipped with inlet and outlet, has and removes particle, demisting, water removal, oil removing and deodorization functions；The import of vacuum pump (19) passes through pipe
The outlet on road and low pressure ram (18)；The import of low pressure ram (18) passes through pipeline and third three-way switch valve (17)
First connection；Second mouth of third three-way switch valve (17) passes through the outlet of pipeline and diluter (16), dilution
The import of device (16) is connected to by pipeline with first mouth of the second three-way switch valve (15), the carrier gas import of diluter (16)
Pass through the outlet of pipeline and 5-linked air filter (20)；The outlet of 5-linked air filter (20) passes through pipeline and air
The outlet of compressor (21)；The third mouth of third three-way switch valve (17) passes through pipeline and the second three-way switch valve (15)
Second mouth connection；The third mouth of second three-way switch valve (15) passes through the outlet of pipeline and pre-cut cutter (14)；
The outlet of pre-cut cutter (14) is connected to by pipeline with first mouth of the first three-way switch valve (13)；First three-way switch valve
(13) second mouth is connected to by pipeline with the first isokinetic sampling probe, and the first isokinetic sampling probe passes through the first sampling section
(4) thief hatch setting is in the first sampling section (4)；The third mouth of first three-way switch valve (13) passes through pipeline and second etc.
Fast sampling probe connection, and the second isokinetic sampling probe samples section second by the thief hatch setting of the second sampling section (10)
(10) in；
Aerosol occurs transmission system and is made of fluidized bed (23) and the second frequency conversion fan (27)；The side of fluidized bed (23)
It is provided with pressure gauge (24) and aerosol sends mouth；The aerosol of fluidized bed (23) sends mouth and passes through pipeline and the described the 1st
Logical third mouth connection, and first butterfly valve (22) are provided on the pipeline between fluidized bed (23) and the first threeway；Second becomes
The outlet of frequency blower (27) is connected to by pipeline with the bottom of fluidized bed (23)；The top of fluidized bed (23) passes through pipeline and second
First mouth of threeway is connected to, and second butterfly valve (25) are provided on the pipeline between fluidized bed (23) and the second threeway；Second
Second mouth of threeway passes through the inlet communication of pipeline and the second frequency conversion fan (27)；The third mouth and air inlet pipe of second threeway
One end connection, the other end of air inlet pipe is communicated with the atmosphere, and the second air flow meter (26) are provided in air inlet pipe.
Embodiment 2
Except the extension rate that the particle size range of the detection of low pressure ram (18) is 100 nanometers ~ 10 microns, diluter (16)
Except 16, remaining is same as Example 1.
Embodiment 3
Except the extension rate that the particle size range of the detection of low pressure ram (18) is 100 nanometers ~ 5 microns, diluter (16)
Except 12, 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 by air filter (1), first sampling section (4), bipolar charge section (5), cyclone separator (7),
Particulate collection tank (8), the second sampling section (10), the first frequency conversion fan (11), bag filter (12) composition；Described first
Sampling section (4) is identical with the second sampling structure of section (10), is round tube, and one end of round tube is import, the other end is outlet,
The side of round tube is provided with a thief hatch；The bipolar charge section (5) is the square tube of both ends open, is respectively equipped in its side
Positive electrode plate (5-1) made of copper and negative electrode plate (5-2), in the centre for being parallel to positive electrode plate (5-1) and negative electrode plate (5-2)
It is provided with the ground connection pole plate (5-3) of stainless steel, the above and below of the bipolar charge section is the plate of transparent organic glass；
The cyclone separator (7) is standard cyclone, is provided with import, outlet and particulate matter outlet；The air mistake
Filter (1) is connected to by pipeline with first mouth of the first threeway, and between the air filter (1) and 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 the first vacuum table (3) are provided on the pipeline between first threeway and the first sampling section (4)；
The outlet of first sampling section (4) is connected to by pipeline with one end of bipolar charge section (5), the bipolar charge section
(5) the other end passes through the inlet communication of pipeline and cyclone separator (7), and the bipolar charge section (5) and cyclonic separation
The second vacuum table (6) are provided on pipeline between device (7)；The particulate collection tank (8) is directly connected to cyclonic separation
In the particulate matter outlet of device (7)；The outlet of the cyclone separator (7) is connected by the import of pipeline and the second sampling section (10)
Third vacuum table (9) are provided on pipeline between logical and described cyclone separator (7) and the second sampling section (10)；It is described
The outlet of the second sampling section (10) pass through the inlet communication of pipeline and the first frequency conversion fan (11)；First frequency conversion fan
(11) outlet passes through the inlet communication of pipeline and bag filter (12)；The outlet venting straight of the bag filter (12) 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) is a cyclonic separation
Device, is equipped with inlet and outlet, and the cyclone separator can remove the particulate matter that partial size is greater than 10 microns；The diluter
(16) import, outlet, carrier gas import and exhaust outlet are equipped with；The low pressure ram (18) is equipped with inlet and outlet；It is described
5-linked air filter (20) be equipped with inlet and outlet, have remove particle, demisting, water removal, oil removing and deodorization functions；Described
The import of vacuum pump (19) passes through the outlet of pipeline and low pressure ram (18)；The import of the low pressure ram (18)
It is connected to by pipeline with first mouth of third three-way switch valve (17)；Second mouth of the third three-way switch valve (17)
By the outlet of pipeline and diluter (16), the import of the diluter (16) passes through pipeline and the second three-way switch valve
(15) first mouth connection, the carrier gas import of the diluter (16) pass through pipeline and 5-linked air filter (20)
Outlet；The outlet of the 5-linked air filter (20) passes through the outlet of pipeline and air compressor (21)；Institute
The third mouth for the third three-way switch valve (17) stated is connected to by pipeline with second mouth of the second three-way switch valve (15)；Institute
The third mouth for the second three-way switch valve (15) stated passes through the outlet of pipeline and pre-cut cutter (14)；Described is precut
The outlet of device (14) is connected to by pipeline with first mouth of the first three-way switch valve (13)；First three-way switch valve
(13) second mouth is connected to by pipeline with the first isokinetic sampling probe, and the first isokinetic sampling probe passes through first
The thief hatch setting of section (4) is sampled in the first sampling section (4)；The third mouth of first three-way switch valve (13) passes through
Pipeline is connected to the second isokinetic sampling probe, and the thief hatch that the second isokinetic sampling probe passes through the second sampling section (10)
Setting is in the second sampling section (10)；
The aerosol occurs transmission system and is made of fluidized bed (23) and the second frequency conversion fan (27)；The fluidized bed
(23) side is provided with pressure gauge (24) and aerosol sends mouth；The aerosol of the fluidized bed (23) sends mouth and passes through pipe
Road is connected to the third mouth of first threeway, and is arranged on the pipeline between the fluidized bed (23) and the first threeway
There are first butterfly valve (22)；The outlet of second frequency conversion fan (27) is connected to by pipeline with the bottom of fluidized bed (23)；Institute
The top for the fluidized bed (23) stated is connected to by pipeline with first mouth of the second threeway, and the fluidized bed (23) and second
Second butterfly valve (25) are provided on pipeline between threeway；Second mouth of second threeway passes through pipeline and the second frequency conversion
The inlet communication of blower (27)；The third mouth of second threeway is connected to one end of air inlet pipe, the air inlet pipe
The other end is communicated with the atmosphere, and the second air flow meter (26) are provided in the air inlet pipe.
2. the apparatus according to claim 1, it is characterised in that the extension rate of the diluter (16) is 8 ~ 16 times.
3. the apparatus according to claim 1, it is characterised in that the particulate cascade of the low pressure ram (18) is 14
Grade, the particle size range of detection are 10 nanometers ~ 10 microns.
4. the apparatus according to claim 1, it is characterised in that the positive electrode plate (5-1) of the bipolar charge section (5) and
Negative electrode plate (5-2) is provided with the prickle of tungsten material.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716992A (en) * | 2018-06-18 | 2018-10-30 | 宁波工程学院 | A kind of bipolar charge-cyclone dust removal experimental provision |
| CN113786935A (en) * | 2021-08-11 | 2021-12-14 | 中国矿业大学 | System for trapping and screening large amount of nanoscale particles and generating nanoscale particles |
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2018
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716992A (en) * | 2018-06-18 | 2018-10-30 | 宁波工程学院 | A kind of bipolar charge-cyclone dust removal experimental provision |
| CN113786935A (en) * | 2021-08-11 | 2021-12-14 | 中国矿业大学 | System for trapping and screening large amount of nanoscale particles and generating nanoscale particles |
| CN113786935B (en) * | 2021-08-11 | 2022-06-17 | 中国矿业大学 | System for trapping and screening large amount of nanoscale particles and generating nanoscale particles |
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