CN106925085B - Compact low-concentration organic waste gas treatment device - Google Patents
Compact low-concentration organic waste gas treatment device Download PDFInfo
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- CN106925085B CN106925085B CN201710212587.6A CN201710212587A CN106925085B CN 106925085 B CN106925085 B CN 106925085B CN 201710212587 A CN201710212587 A CN 201710212587A CN 106925085 B CN106925085 B CN 106925085B
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- 239000007789 gas Substances 0.000 title abstract description 65
- 239000010815 organic waste Substances 0.000 title abstract 2
- 239000002184 metal Substances 0.000 claims abstract description 56
- 239000007787 solid Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- 230000004888 barrier function Effects 0.000 claims description 8
- 150000003254 radicals Chemical class 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000003672 processing method Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 230000005281 excited state Effects 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000011149 active material Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 230000003993 interaction Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000007689 inspection Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000005684 electric field Effects 0.000 abstract description 2
- 208000028659 discharge Diseases 0.000 description 35
- 230000005611 electricity Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000002912 waste gas Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 238000010494 dissociation reaction Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
- B01D53/323—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention relates to a compact low-concentration organic waste gas treatment device, which structurally comprises a metal wire, a metal cylinder, an inner air gap, an opening, an outer air gap, an insulating medium layer, a metal net, a perforated sealing plug, a sealing plug, an air inlet, an air outlet and a pulse power supply, wherein the metal wire is arranged in the metal cylinder; the metal wire is arranged inside the metal cylinder, and the metal cylinder is arranged inside the insulating medium layer and is connected with a high-voltage end of a power supply; an inner air gap is arranged between the metal cylinder and the metal wire, an outer air gap is arranged between the metal cylinder and the insulating medium layer, and an opening is arranged at the upper right end of the metal cylinder; the metal net is tightly attached to the outside of the insulating medium layer and is connected with a low-voltage end of a power supply; the two sealing plugs are respectively embedded into the two ends of the metal cylinder and the insulating medium layer; the air inlet and the air outlet are respectively connected with an air inlet and an air outlet on the opening sealing plug. The advantages are that: (1) the size of the device is reduced, the cost is reduced, and the space utilization rate is improved; (2) the electric field intensity is enhanced, and the electric energy utilization rate is improved; (3) make things convenient for dismouting and inspection maintenance, improve factor of safety.
Description
Technical field
The present invention relates to a kind of compact low-concentration organic exhaust gas processing units, belong to technical field of waste gas treatment.
Background technique
With the continuous improvement of China's industrialized level, industrial gas emission aggravation, air pollution is serious, and environmental quality is disliked
Chemical conversion is the problem of becoming increasingly conspicuous.Wherein industrial waste gas air quantity is big, complicated components, combined pollution are to people's lives, health care belt
It seriously affects, also specifies exhaust-gas treatment related request in " the comprehensive programme of work of " 12th Five-Year Plan " energy-saving and emission-reduction ", at exhaust gas
Reason becomes the urgent task for improving environment.Traditional waste gas processing method has physisorphtion, chemical washing method, photocatalysis Decomposition
Method, biological treatment etc., however there is high running expense, equipment and operational management requirement in these traditional waste gas processing methods
It is high, take up a large area, purification efficiency is not high, easily generates the disadvantages of secondary pollution, vulnerable to pollution object concentration and temperature influence.Gas
Electronics, ion, excited state particle and the free radical being rich in body discharge low-temperature plasma space are all extremely active chemistry
Reactant makes its degradation, without secondary pollution, atmospheric non-equilibrium plasma technology with pernicious gas point collision, excitation, dissociation
It is attracted wide attention as a kind of new waste gas processing method.How a kind of plasma generation efficiency is designed from structure
Plasma exhaust-gas treatment generating device high, that apparatus structure is simple, economy is inexpensive is particularly important.
Reactor currently used for exhaust-gas treatment is there are mainly three types of structure type.The first is corona discharge structure, is passed through
Corona discharge pre-processes exhaust gas.As described in patent CN201815229U, by hexagonal honeycomb reaction chamber, corona
It is de- that the corona discharge structure of line, shell, bracket and corona line card composition carries out absorption to large particulate matter, the drop in exhaust gas
It is pre-oxidized divided by realizing.Corona discharge reactor is capable of handling the exhaust gas of big flow velocity and adsorbs larger suspended particulate substance therein
Matter, but still remain the exhaust gas of molecular level in treated exhaust gas.It is reached to further remove emission molecule in exhaust gas
To the purpose of deep purifying exhaust gas, researcher and engineer use the emission-control equipment of dielectric impedance structure, as special
Described in sharp CN203971712U, put by the way that outer plasma medium blocking is managed in the staggered realization of neighbouring discharge electrode assembly
Electricity comes into full contact with plasma and exhaust gas and carries out oxygenolysis to realize advanced treating.For bigger raising exhaust-gas treatment
Efficiency devises the segmentation structure of plural serial stage again, carries out pretreatment and advanced treating to exhaust gas by multistage-combination, obtains
Better clean-up effect.Pass through corona and the realization pair of dielectric barrier discharge two-stage series connection as described in patent CN204247045U
The pre-oxidation of exhaust gas and advanced treating greatly improve exhaust treatment efficiency, but there are occupied areas for multistage emission-control equipment
Greatly, the problem of structure is complicated, replacement cost is high, the multiple power supplys of needs drive multistage reactor simultaneously.Realize it is a kind of processing efficiently,
Apparatus structure is compact, single supply drives and the emission-control equipment of low operating cost has practical significance.
Summary of the invention
Proposed by the present invention is a kind of compact low-concentration organic exhaust gas processing unit, and its object is to solve the prior art
The problems such as middle emission-control equipment degree of purification is low, structure is complicated takes up a large area, replacement cost is high, it is tight to provide a kind of structure
It gathers, efficiently, the low emission-control equipment of operating cost can be effectively applied in industrial waste gas processing links for processing.
Technical solution of the invention: a kind of compact low-concentration organic exhaust gas processing unit, structure include metal
Line 1, metallic cylinder 2, interior air gap 3, opening 4, outer air gap 5, insulating medium layer 6, metal mesh 7, aperture sealing-plug 8, sealing-plug 9,
Air inlet 10, gas outlet 11, the pulse power 12；Wherein metal wire 1 be set to the inside of metallic cylinder 2 and with metallic cylinder 2 and insulation
Dielectric layer 6 is coaxial, and metal wire 1 connects 12 low-pressure end of the pulse power；Metallic cylinder 2 is set to 6 inside of insulating medium layer and connects arteries and veins
Rush 12 high-voltage end of power supply；It is equipped with interior air gap 3 between metallic cylinder 2 and metal wire 1, is set between metallic cylinder 2 and insulating medium layer 6
There is outer air gap 5；The upper right side of metallic cylinder 2 is equipped with opening 4；It is arranged outside the abutting insulating medium layer 6 of metal mesh 7 and electric with pulse
12 low-pressure end of source is connected；Aperture sealing-plug 8, sealing-plug 9 are respectively embedded into the both ends of metallic cylinder 2 Yu insulating medium layer 6；Air inlet
10, gas outlet 11 is connected to air inlet 8-4 and venthole 8-5 on aperture sealing-plug 8 respectively；
Its processing method, includes the following steps:
(1) pre-process: exhaust gas to be processed enters interior air gap 3, under the driving of the pulse power, interior air gap 3 through air inlet 10
Negative polarity corona discharge is generated, the small 1 surface aggregation corona layer of metal wire of discharge process mean curvature radius generates a large amount of high energy electricity
Son, and active material needed for generating with processing exhaust gas interaction removes the substances such as dust particles, drop in exhaust gas
Realize exhaust gas pretreatment, the spool formula corona discharge pre-oxidation removal being made up of metal wire 1, metallic cylinder 2, interior air gap 3 is useless
Drop, large particulate matter in gas spray into outer air gap 5 by the opening 4 of metallic cylinder 2；
(2) advanced treating: treated, and gas is made up of metallic cylinder 2, outer air gap 5, insulating medium layer 6, metal mesh 7
Dielectric barrier discharge area；Cylinder 2 does high-field electrode, and under the driving of the pulse power 12, outer air gap 5 generates dielectric impedance and puts
Electricity, the plasma generated in discharge process is containing active particle abundant, such as OH free radical, O3, in the N2 of excitation state, furthermore
Also contain a large amount of high energy electrons, so that it is thoroughly broken shape by the chemical bond of these impact with energetic electrons exhaust emission molecules
At atom or fractionlet group, atom or fractionlet group easily make exhaust gas by free radical, O3, excited state molecule redox
Middle harmful components decline to a great extent；Gas after advanced treating is discharged through gas outlet 11.
Advantages of the present invention:
(1) through compact structure under the premise of realizing segmented corona-dielectric barrier discharge treatment effect, dress is reduced
Size is set, reduces occupied area, reduces cost, the processing path of 2 times of original length is realized in fixed reactor length,
Improve space utilization rate；
(2) a metallic cylinder high-field electrode is shared, realizes a power drives corona discharge and medium using the structure
Barrier discharge, two kinds of electric discharges effectively collaboration, strengthens electric field strength and improves utilization rate of electrical；
(3) sealing-plug of easy disassembly cooperates the cramped construction to improve the safety coefficient in operational process, also facilitates
Running clearance carries out maintenance and inspection to device.
Detailed description of the invention
Attached drawing 1 is compact low-concentration organic exhaust gas processing device structure diagram.
Attached drawing 2 is compact low-concentration organic exhaust gas processing unit A-A sectional view.
Attached drawing 3 is compact low-concentration organic exhaust gas processing unit corona discharge partial structure diagram.
Attached drawing 4 is compact low-concentration organic exhaust gas processing unit dielectric barrier discharge partial structure diagram.
Attached drawing 5 is 8 structural schematic diagram of compact low-concentration organic exhaust gas processing unit aperture sealing-plug.
Attached drawing 6 is 9 structural schematic diagram of compact low-concentration organic exhaust gas processing unit sealing-plug.
1 it is wherein metal wire, 2 be metallic cylinder, 3 be interior air gap, 4 be opening, 5 be outer air gap, 6 is insulating medium layer, 7
It is metal mesh, 8 be aperture sealing-plug, 9 be sealing-plug, 10 be air inlet, 11 be gas outlet, 12 is the pulse power；8-1 is aperture
It is air inlet that the outer solid cylinder of sealing-plug, 8-2, which are that solid cylinder, 8-3 are the hollow circular hole of aperture sealing-plug, 8-4 in aperture sealing-plug,
Hole, 8-5 are ventholes；It is solid cylinder in sealing-plug, 9-3 is sealing-plug open circles that 9-1, which is the outer solid cylinder of sealing-plug, 9-2,
Hole.
Specific embodiment
As shown in attached drawing 1-2, a kind of compact low-concentration organic exhaust gas processing unit, structure includes metal wire 1, metal
Cylinder 2, interior air gap 3, opening 4, outer air gap 5, insulating medium layer 6, metal mesh 7, aperture sealing-plug 8, sealing-plug 9, air inlet 10,
Gas outlet 11, the pulse power 12；Wherein metal wire 1 is set on 2 inside of metallic cylinder and same with metallic cylinder 2 and insulating medium layer 6
Axis, metal wire 1 connect 12 low-pressure end of the pulse power；Metallic cylinder 2 is set to the inside of insulating medium layer 6 and to connect the pulse power 12 high
Pressure side；It is equipped with interior air gap 3 between metallic cylinder 2 and metal wire 1, outer air gap 5 is equipped between metallic cylinder 2 and insulating medium layer 6；
The upper right side of metallic cylinder 2 is equipped with opening 4；Metal mesh 7 be close to insulating medium layer 6 outside be arranged and with 12 low-pressure end of the pulse power
It is connected；Aperture sealing-plug 8, sealing-plug 9 are respectively embedded into the both ends of metallic cylinder 2 Yu insulating medium layer 6；Air inlet 10, gas outlet
11 are connected to air inlet 8-4 and venthole 8-5 on aperture sealing-plug 8 respectively.
This application involves compact low-concentration organic exhaust gas processing unit, corona discharge part, dielectric impedance can be divided into
Three comprising modules of discharge portion and hermetic unit.
As shown in Fig. 3, metal wire 1, metallic cylinder 2 collectively constitute the corona discharge part of emission-control equipment, wherein
1 material of metal wire is stainless steel, and length 390-430mm, diameter 2mm make low electrode.2 material of metallic cylinder is stainless
Steel, length 360-400mm, internal diameter 22mm, wall thickness 1.5-2mm do high-field electrode.Metallic cylinder 2 is coaxial with metal wire 1 and passes through
Aperture sealing-plug 8 and sealing-plug 9 are fixed；In the cylinder opening for opening a diameter 10mm away from the upper right side at the 20mm of metallic cylinder end
4, for being vented；Under the driving of the pulse power, interior air gap 3 generates negative polarity corona discharge, and discharge process mean curvature radius is small
1 surface aggregation corona layer of metal wire, generate a large amount of high energy electrons, and active material needed for generating with processing exhaust gas interaction
Removing is carried out to substances such as dust particles, drops in exhaust gas and realizes exhaust gas pretreatment, low energy consumption in treatment process.
As shown in Fig. 4, metallic cylinder 2, insulating medium layer 6, metal mesh 7 collectively constitute the medium resistance of emission-control equipment
Discharge portion is kept off, wherein the 6 material selection polytetrafluoroethylene (PTFE) of insulating medium layer or quartz glass, length 380-420mm is interior
Diameter 46mm, wall thickness 2mm, fixed by aperture sealing-plug 8 and sealing-plug 9, which inhibits electric arcs in Plasma Formation to put
Electricity, make to discharge it is uniform and stable be distributed in entire discharge space, guard electrode material is not corroded.Metal mesh 7 is because being exposed to
Air is easily contacted with water vapor in air, selects stainless steel material, length 320-360mm, tight is in insulating medium layer 6
Outer wall on, make low electrode.Cylinder 2 does high-field electrode, and under the driving of the pulse power 12, outer air gap 5 generates dielectric impedance and puts
Electricity, the plasma generated in discharge process containing active particle abundant, such as OH free radical, O3, the N2 in excitation state, this
Also contain a large amount of high energy electrons outside, is broken it thoroughly by the chemical bond of these impact with energetic electrons exhaust emission molecules
It forms atom or fractionlet group, fractionlet group or atom easily to give up by free radical, O3, excited state molecule redox
Harmful components decline to a great extent in gas, greatly improve waste gas purification effect.
As shown in figures 5-6, aperture sealing-plug 8 and sealing-plug 9 collectively constitute the hermetic unit of emission-control equipment, aperture
By diameter 46mm, the solid cylinder of high 30mm is milled out for sealing-plug 8 and sealing-plug 9, and the composition material of cylindrical body selects silicon
Rubber or polytetrafluoroethylene (PTFE)；Wherein 8-1,9-1 are the outer solid cylinder of sealing-plug, and diameter is 46mm and 6 internal diameter phase of insulating medium layer
Deng high 10mm；8-2,9-2 are solid cylinder in sealing-plug, and diameter 22mm is equal with 2 internal diameter of metallic cylinder, high 20mm, inside and outside
Solid cylinder is coaxial；8-3,9-3 are hollow circular hole and coaxial with interior solid cylinder, for fixing metal wire 1, diameter 2mm, height
30mm；8-4 is air inlet, is located in interior solid cylinder, diameter 10mm, high 30mm and hollow circular hole 8-3 are circumscribed, and and air inlet
10 connections；8-5 is that venthole is located on outer solid cylinder 8-1, and diameter 10mm, high 10mm are connect with gas outlet 11；Aperture sealing
Gas, which may be implemented, in plug 8 to be flowed out through outer air gap 5 from venthole 8-5, by entering inside metallic cylinder 2 so that air inlet is with going out
Gas cooperates compact structure to improve space utilization rate in the same end, in addition convenient for disassembly and assembly, increases in device operational process
Safety coefficient also facilitates and carries out maintenance and inspection to device in running clearance.
The processing method of compact low-concentration organic exhaust gas processing unit, includes the following steps:
(1) pre-process: exhaust gas to be processed enters interior air gap 3, under the driving of the pulse power, interior air gap 3 through air inlet 10
Negative polarity corona discharge is generated, the small 1 surface aggregation corona layer of metal wire of discharge process mean curvature radius generates a large amount of high energy electricity
Son, and active material needed for generating with processing exhaust gas interaction removes the substances such as dust particles, drop in exhaust gas
Realize exhaust gas pretreatment, the spool formula corona discharge pre-oxidation removal being made up of metal wire 1, metallic cylinder 2, interior air gap 3 is useless
Drop, large particulate matter in gas spray into outer air gap 5 by the opening 4 of metallic cylinder 2；
(2) advanced treating: treated, and gas is made up of metallic cylinder 2, outer air gap 5, insulating medium layer 6, metal mesh 7
Dielectric barrier discharge area；Cylinder 2 does high-field electrode, and under the driving of the pulse power 12, outer air gap 5 generates dielectric impedance and puts
Electricity, the plasma generated in discharge process is containing active particle abundant, such as OH free radical, O3, in the N2 of excitation state, furthermore
Also contain a large amount of high energy electrons, so that it is thoroughly broken shape by the chemical bond of these impact with energetic electrons exhaust emission molecules
At atom or fractionlet group, atom or fractionlet group easily make exhaust gas by free radical, O3, excited state molecule redox
Middle harmful components decline to a great extent；Gas after advanced treating is discharged through gas outlet 11.
Metal wire 1, metallic cylinder 2, interior air gap 3 are formed corona discharge region by the device, do high pressure in shared metallic cylinder 2
Dielectric barrier discharge area is formed with outer air gap 5, insulating medium layer 6, metal mesh 7 in the case where electrode, realizes cramped construction；?
Effectively being connect interior air gap 3 with outer air gap 5 by opening 4 under the premise of cramped construction makes region of discharge become original chamber length
2 times, extend processing path, improve space utilization rate；It can realize that corona is effectively cooperateed with dielectric impedance using the structure, improve
Utilization rate of electrical；Sealing-plug cooperates the structure to keep single unit system simple in construction, easy to disassemble and assemble, increases in device operational process
Safety coefficient, which can also carry out matrix form combination, using the structure that original corona-dielectric impedance two-part is anti-
It answers device to replace with one-part form, reduces occupied area, reduce economic cost.
Claims (6)
1. compact low-concentration organic exhaust gas processing unit, it is characterized in that including metal wire, metallic cylinder, interior air gap, opening, outside
Air gap, insulating medium layer, metal mesh, aperture sealing-plug, sealing-plug, air inlet, gas outlet, the pulse power；Wherein metal wire is set
Inside metallic cylinder and coaxial with metallic cylinder and insulating medium layer, metal wire connects pulse power low-pressure end；Metallic cylinder
Inside insulating medium layer and connect pulse power high-voltage end；Interior air gap, round metal are equipped between metallic cylinder and metal wire
Outer air gap is equipped between cylinder and insulating medium layer；The upper right side of metallic cylinder is equipped with opening；Metal mesh is close to outside insulating medium layer
Portion is arranged and is connected with pulse power low-pressure end；Aperture sealing-plug, sealing-plug are respectively embedded into metallic cylinder and insulating medium layer
Both ends；Air inlet, gas outlet are connected to respectively on the air inlet and venthole on aperture sealing-plug.
2. compact low-concentration organic exhaust gas processing unit according to claim 1, it is characterized in that the metal wire rod
Matter is stainless steel, and the length is 390-430mm, diameter 2mm；Metallic cylinder material is stainless steel, and the length is 360-
400mm, internal diameter 22mm, wall thickness 1.5-2mm；Away from the opening equipped with a diameter 10mm of the upper right side at the 20mm of metallic cylinder end
Mouthful.
3. compact low-concentration organic exhaust gas processing unit according to claim 1, it is characterized in that the dielectric
Layer material is polytetrafluoroethylene (PTFE) or quartz glass, and the length is 380-420mm, internal diameter 46mm, wall thickness 2mm；Metal mesh material is
Stainless steel, the length is 320-360mm.
4. compact low-concentration organic exhaust gas processing unit according to claim 1, it is characterized in that the aperture seals
Plug is milled out by diameter 46mm, the solid cylinder of high 30mm, and the composition material of cylindrical body selects silicon rubber or polytetrafluoroethylene (PTFE)；
Its structure includes solid cylinder outside aperture sealing-plug, solid cylinder, the hollow circular hole of aperture sealing-plug, air inlet in aperture sealing-plug
Hole, venthole；Wherein the outer solid cylinder diameter of aperture sealing-plug is equal with insulating medium layer internal diameter, high 10mm；Aperture sealing-plug
Interior solid cylinder diameter is equal with metallic cylinder internal diameter, high 20mm, and inside and outside solid cylinder is coaxial；The hollow circular hole of aperture sealing-plug
Coaxial, diameter 2mm, height 30mm with solid cylinder in aperture sealing-plug；Air inlet is located in aperture sealing-plug in solid cylinder,
Diameter 10mm, high 30mm and the hollow circular hole of aperture sealing-plug are circumscribed, and connect with air inlet；Venthole is located at aperture sealing-plug
On outer solid cylinder, diameter 10mm, high 10mm, and connect with gas outlet.
5. compact low-concentration organic exhaust gas processing unit according to claim 1, it is characterized in that the sealing-plug is logical
Diameter 46mm is crossed, the solid cylinder of high 30mm mills out, and the composition material of cylindrical body selects silicon rubber or polytetrafluoroethylene (PTFE)；It is tied
Structure includes solid cylinder outside sealing-plug, solid cylinder, the hollow circular hole of sealing-plug in sealing-plug；Wherein the outer solid cylinder of sealing-plug is straight
Diameter is equal with insulating medium layer internal diameter, high 10mm；Solid cylinder diameter is equal with metallic cylinder internal diameter in sealing-plug, high 20mm,
Inside and outside solid cylinder is coaxial；The hollow circular hole of sealing-plug and solid cylinder in sealing-plug are coaxial, diameter 2mm, height 30mm.
6. the processing method of compact low-concentration organic exhaust gas processing unit as described in claim 1, it is characterized in that this method
Include the following steps:
(1) pre-process: exhaust gas to be processed enters interior air gap through air inlet, and under the driving of the pulse power, interior air gap generates cathode
Property corona discharge, the small metal line surface of discharge process mean curvature radius assembles corona layer, generate a large amount of high energy electrons, and with place
Reason exhaust gas interaction generate needed for active material in exhaust gas dust particles and drop carry out removing realize exhaust gas pretreatment,
The drop gone in removing exhaust gas, large particle are pre-oxidized by the spool formula corona discharge of metal wire, metallic cylinder, interior air gap composition
Matter sprays into outer air gap by the opening of metallic cylinder；
(2) advanced treating: treated, and gas passes through metallic cylinder, the medium resistance of outer air gap, insulating medium layer, metal mesh composition
Keep off region of discharge；Metallic cylinder does high-field electrode, and under the driving of the pulse power, outer air gap generates dielectric barrier discharge, discharges
The plasma generated in journey contains active particle abundant, additionally contains a large amount of high energy electrons, is hit by these high energy electrons
The chemical bond for hitting exhaust emission molecule is broken it thoroughly and forms atom or fractionlet group, atom or fractionlet group pole
Easily by free radical, O3, excited state molecule redox harmful components in exhaust gas are declined to a great extent；Gas warp after advanced treating
Gas outlet discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710212587.6A CN106925085B (en) | 2017-04-01 | 2017-04-01 | Compact low-concentration organic waste gas treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710212587.6A CN106925085B (en) | 2017-04-01 | 2017-04-01 | Compact low-concentration organic waste gas treatment device |
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| CN106925085A CN106925085A (en) | 2017-07-07 |
| CN106925085B true CN106925085B (en) | 2019-08-09 |
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