CN108404657A - A kind of electric discharge basic unit, catalytic converter and waste gas cleaning system - Google Patents
A kind of electric discharge basic unit, catalytic converter and waste gas cleaning system Download PDFInfo
- Publication number
- CN108404657A CN108404657A CN201810446591.3A CN201810446591A CN108404657A CN 108404657 A CN108404657 A CN 108404657A CN 201810446591 A CN201810446591 A CN 201810446591A CN 108404657 A CN108404657 A CN 108404657A
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- electrode
- shell
- basic unit
- electric discharge
- catalytic converter
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- 230000003197 catalytic effect Effects 0.000 title claims abstract description 32
- 239000002912 waste gas Substances 0.000 title claims abstract description 20
- 238000004140 cleaning Methods 0.000 title claims abstract description 13
- 239000003054 catalyst Substances 0.000 claims abstract description 16
- 238000000746 purification Methods 0.000 claims abstract description 11
- 238000000429 assembly Methods 0.000 claims abstract description 7
- 230000000712 assembly Effects 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 66
- 238000001179 sorption measurement Methods 0.000 claims description 31
- 239000003463 adsorbent Substances 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 229910000428 cobalt oxide Inorganic materials 0.000 claims description 5
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- 229910052684 Cerium Inorganic materials 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims 2
- 241000790917 Dioxys <bee> Species 0.000 claims 1
- 229910003978 SiClx Inorganic materials 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 abstract description 5
- 239000011149 active material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 2
- 239000012717 electrostatic precipitator Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- -1 compound aluminium oxide Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
-
- 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
- B01D2259/804—UV light
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The present invention relates to a kind of electric discharge basic unit, catalytic converter and waste gas cleaning systems, wherein electric discharge basic unit has at least two electrode assemblies；The electric machine assembly includes being connected with the electrode of conducting wire, and the light-transmitting plate of one side or both sides is covered with the shape or whole of electrode；The electrode is porous metallic plate or metal film；The surface of the light-transmitting plate is coated with catalyst layer；Gap between neighbouring electrode modules forms discharge space.Basic unit of discharging in the present invention utilizes light-transmitting plate and euphotic electrode, efficiently uses the ultraviolet light that single discharge space generates, and reinforces the generation of neighbouring discharge spaces plasma and so that its purification efficiency is greatly improved to substantially increase the density of active material.Using the catalytic converter and waste gas cleaning system of above-mentioned electric discharge basic unit, purification efficiency and clean-up effect are substantially increased.
Description
Technical field
The present invention relates to waste gas purification field, more particularly to a kind of electric discharge basic unit, catalytic converter and waste gas purification
System.
Background technology
As five gas of China controls the development of Environment Protection Policy altogether, Air Pollutant Emission requires to be increasingly stringenter, big portion
The technological transformation requirement for dividing original exhaust gas treatment method to be faced with update.Current exhaust gas treatment method is based primarily upon burning skill
Art, catalytic combustion technology, biotechnology, adsorption technology, these technologies require very high, required equipment to the residence time of exhaust gas
Size is very big, need when device build it is extensive change pipeline trend, be not suitable for the technological transformation item that site area is restricted
Mesh.Therefore, it is necessary to a kind of pipeline original position waste gas processing method, can in the case where not changing pipeline and moving towards directly to exhaust gas into
Row purified treatment achievees the purpose that the minimally invasive technological transformation of pipeline.
Lower temperature plasma technology can generate ultraviolet light, free radical, excited state molecule isoreactivity substance, especially suitable for
The exhaust gas of low concentration, Wind Volume.However, current lower temperature plasma technology integration degree is low, for having for waste gas pollution control and treatment
Efficiency amount efficiency is relatively low, this is also resulted in, and equipment size is bigger than normal, exhaust-gas treatment is ineffective.Therefore, it is necessary to a kind of integrated journeys
It spends high, can make full use of the lower temperature plasma technology of active material.
Invention content
The first purpose of the invention is to provide a kind of active material density height, and discharge space size is small, and purification efficiency is high
Electric discharge basic unit.
Realizing the technical solution of first purpose of the invention is：Basic unit of discharging in the present invention has at least two electrodes
Component；The electrode assembly include be connected with the electrode of conducting wire, and with electrode shape or all covering one side or
The light-transmitting plate of both sides；The electrode is porous metallic plate or metal film, in order to light transmission；The surface of the light-transmitting plate is coated with
There is catalyst layer；Gap between neighbouring electrode modules forms discharge space.
As an optimization, there are three electrode assemblies for electric discharge basic unit tool in the present invention.
As an optimization, above-mentioned each electrode is mutually parallel.
As an optimization, above-mentioned each electrode is in tabular or sleeve-shaped.
As an optimization, the gap of above-mentioned discharge space is 0.1~20mm.
The thickness of electrode is 0.05~1mm；Aperture on electrode is 0.1~10mm.
The material of above-mentioned electrode is one or more composite materials of gold, silver, copper, iron, stainless steel, aluminum metal.
The thickness of catalyst layer is 0.1~5 μm；The material of catalyst layer be gold, silver, platinum, calcium, potassium, aluminium, zirconium, copper, iron,
One or more composite materials or gold, silver, platinum, calcium, potassium, aluminium, zirconium, copper, iron, titanium, manganese, cerium, cobalt in titanium, manganese, cerium, cobalt
One or more composite materials in oxide.
The material of the light-transmitting plate is organic glass or glass or quartz or crystal.
Second object of the present invention, which is to provide, provided a kind of purification efficiency height, the small catalytic converter of size.
Realizing the technical solution of second purpose of the invention is：There is the present invention shell, shell to be equipped with air inlet and go out
Gas port；Discharge reactor is equipped in shell；The discharge reactor includes one or more above-mentioned electric discharge basic units；Respectively put
It is connect with high-voltage pulse or AC power by its conducting wire after electric basic unit parallel connection.The inlet end of discharge space and shell into
Gas port is connected to, and the gas outlet of discharge space is connected to the gas outlet of shell.
The volume ratio of discharge reactor and shell is 0.3~0.9；The shell is along off-gas flows direction length in 0.3m
~1m.
Air inlet pipe is equipped at the air inlet of above-mentioned shell；The sectional area of shell and be 1 with the ratio of the sectional area of air inlet pipe
~20.
It is equipped with sensor at the air inlet of above-mentioned shell and gas outlet；The sensor includes ozone sensor, air-flow
It is one or more in flow sensor, gas flow sensor, differential manometer, thermocouple.
The combination of the above-mentioned high-voltage pulse or output voltage of AC power, frequency or voltage and frequency can be by adjusting manually
Section, the signal of sensor is adjusted or the combination of aforementioned the two regulative mode is adjusted.
Third object of the present invention is to provide a kind of waste gas purification effect is good, the small waste gas cleaning system of floor space.
Realizing the technical solution of third purpose of the present invention is：The present invention is equipped with pretreatment system by off-gas flows direction successively
System, above-mentioned catalytic converter and after-treatment system；It is characterized in that：The pretreatment system is set successively along off-gas flows direction
There are demister and dust-extraction unit；The air inlet that the gas outlet of dust-extraction unit passes through the first exhaust piping and the shell of catalytic converter
Mouth connection；The gas outlet of the shell of catalytic converter and the air inlet of after-treatment system connect；The after-treatment system includes inhaling
Adsorption device and/or absorption plant.
Above-mentioned adsorbent equipment have manganese oxide adsorption layer, cerium oxide adsorption layer, cobalt oxide adsorption layer, activated carbon adsorption layer,
One or more of alumina adsorption layer, kieselguhr adsorption layer and silica adsorption layer combine；The absorption plant includes
Cylinder, cylinder is interior to be equipped with adsorption liquid；The adsorption liquid is lye of the pH value 7~14.
Above-mentioned demister be bubbler, wet type packed tower, dry filler tower, condensing tower and one kind in activated carbon tower or
Multiple combinations；The dust-extraction unit is in bag-type dust collector, electrostatic precipitator, filtering drum dust removing device and cyclone dust collector
One or more combinations.
The ratio of the perimeter of section of the shell of above-mentioned catalytic converter and the perimeter of section of shell upper air pipeline is 1.5~
0.5。
The present invention has the effect of positive：(1) basic unit of discharging in the present invention has using light-transmitting plate and euphotic electrode
The ultraviolet light that effect is generated using single discharge space, reinforces the generation of neighbouring discharge spaces plasma, therefore greatly improves work
The density of property substance；
(2) ultraviolet light that the plasma of electric discharge basic unit generates in the present invention can also be fully utilized in catalyst
Activation further generates advantageous effect so that purification process energy efficiency greatly improves, and reduces discharge space to waste gas purification
Size.
(3) gap size of discharge space is the optimal result obtained after many experiments in the present invention, and purification efficiency is most
It is high；
(4) first electrode, second electrode, the thickness of third electrode and aperture in the present invention, can improve its light transmittance, into
One step reinforces the generation of neighbouring discharge spaces plasma；
(5) perimeter of section of shell perimeter of section and the first exhaust piping ratio in the present invention is optimal selection, in this range
Interior, clean-up effect is best；
(6) original place exhaust-gas treatment may be implemented in waste gas cleaning system in the present invention, is reached not changing the case where pipeline moves towards
To the requirement of exhaust-gas treatment, place space and technological transformation cost are saved.
Description of the drawings
In order that the present invention can be more clearly and readily understood, right below according to specific embodiment and in conjunction with attached drawing
The present invention is described in further detail, wherein
Fig. 1 is a kind of structural schematic diagram of electric discharge basic unit of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram that a basic unit is put in the embodiment of the present invention two；
Fig. 3 is the structural schematic diagram of electric discharge base board unit in the embodiment of the present invention three；
Fig. 4 is the structural schematic diagram of electric discharge basic unit in the embodiment of the present invention four；
Fig. 5 is a kind of structural schematic diagram of discharge reactor of the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of discharge reactor in the embodiment of the present invention three；
Fig. 7 is the structural schematic diagram of catalytic converter in the present invention；
Fig. 8 is the structural schematic diagram of waste gas cleaning system in the present invention.
Specific implementation mode
(embodiment one)
See Fig. 1, there are three electrode assemblies 1 for basic unit of discharging in present invention tool；The electrode assembly 1 includes being connected with to lead
The electrode 11 of line, and all cover with the shape of electrode 11 light-transmitting plate 12 of its upper surface；Each electrode 11 is in tabular, and
For copper mesh plate, in order to light transmission；Each electrode 11 is mutually parallel；Each light-transmitting plate 12 is the glass of 8mm, and the surface of light-transmitting plate 12 is equal
Catalyst layer coated with 5 μ m-thicks；The material of catalyst layer is aluminium oxide catalyst；Gap shape between neighbouring electrode modules 1
At discharge space.
The gap of discharge space is 20mm.
The thickness of electrode 11 is 1mm；Aperture on electrode 11 is 10mm.
See Fig. 5 and Fig. 7, there is catalytic converter in the present invention shell 2, shell 2 to be equipped with air inlet and gas outlet；Outside
Discharge reactor 3 is equipped in shell 2；The discharge reactor 3 includes multiple above-mentioned electric discharge basic units；Each electric discharge basic unit
It is connect with high-voltage pulse or AC power 4 by its conducting wire after parallel connection.
Discharge reactor 3 and the volume ratio of shell 2 are 0.9；The shell 2 is along off-gas flows direction length in 1m.
Air inlet pipe is equipped at the air inlet of the shell 2；The ratio 20 of the sectional area of shell 2 and the sectional area of air inlet pipe:
1。
Sensor 7 is equipped at the air inlet of the shell 2 and gas outlet；The sensor 7 includes ozone sensor, gas
Flow/flow-rate sensor, gas flow sensor, differential manometer, thermocouple.
The combination of the high-voltage pulse or output voltage of AC power 4, frequency or voltage and frequency can be by manual
It adjusts, the signal of sensor 7 is adjusted or the combination of aforementioned the two regulative mode is adjusted.
See Fig. 8, waste gas cleaning system in the present invention, by off-gas flows direction successively equipped with pretreatment system 5, such as above-mentioned
Catalytic converter and after-treatment system 6；The pretreatment system 5 is equipped with demister 51 and dedusting successively along off-gas flows direction
Device 52；The gas outlet of dust-extraction unit 51 is connect by the first exhaust piping 53 with the air inlet pipe of the shell 2 of catalytic converter；It is useless
The gas outlet of the shell 2 of gas purifier is connect with the air inlet of after-treatment system 6；The after-treatment system 6 includes adsorbent equipment
61。
The demister 51 is dry filler tower；The dust-extraction unit 52 is electrostatic precipitator.
The adsorbent equipment 61 has the manganese oxide adsorption layer being superimposed and cerium oxide adsorption layer.
The ratio of the perimeter of section of the perimeter of section of the shell 2 of the catalytic converter and the first exhaust piping 53 is 1.5.
(embodiment two)
See Fig. 2, there are three electrode assemblies 1 for electric discharge basic unit tool in the present invention in the present invention；The electrode assembly 1 includes
It is connected with the electrode 11 of conducting wire, and its light-transmitting plate 12 upper and lower surfaces of is all covered with the shape of electrode 11；Each electrode 11 is equal
In tabular, and it is porous metal film, in order to light transmission；Each electrode 11 is mutually parallel；Each light-transmitting plate 12 is the glass of 8mm
Glass, the surface of light-transmitting plate 12 are coated with the catalyst layer of 0.1 μ m-thick；The material of catalyst layer is calcium；Neighbouring electrode modules 1 it
Between gap formed discharge space.
The gap of discharge space is 1mm.
The thickness of electrode 11 is 0.1mm；Aperture on electrode 11 is 0.1mm.
See Fig. 7, there is catalytic converter in the present invention shell 2, shell 2 to be equipped with air inlet and gas outlet；In shell 2
Equipped with discharge reactor 3；The discharge reactor 3 includes multiple above-mentioned electric discharge basic units；Each electric discharge basic unit is in parallel
It is connect afterwards with high-voltage pulse or AC power 4 by its conducting wire.
Discharge reactor 3 and the volume ratio of shell 2 are 0.3；The shell 2 is along off-gas flows direction length in 0.3m.
Air inlet pipe is equipped at the air inlet of the shell 2；The ratio 1 of the sectional area of shell 2 and the sectional area of air inlet pipe:1.
Sensor 7 is equipped at the air inlet of the shell 2 and gas outlet；The sensor 7 includes ozone sensor, gas
Flow/flow-rate sensor, gas flow sensor.
The combination of the high-voltage pulse or output voltage of AC power 4, frequency or voltage and frequency can be by manual
It adjusts, the signal of sensor 7 is adjusted or the combination of aforementioned the two regulative mode is adjusted.
See Fig. 8, waste gas cleaning system in the present invention, by off-gas flows direction successively equipped with pretreatment system 5, such as above-mentioned
Catalytic converter and after-treatment system 5；The pretreatment system 5 is equipped with demister 51 and dedusting successively along off-gas flows direction
Device 52；The gas outlet of dust-extraction unit 51 is connect by the first exhaust piping 53 with the air inlet of the shell 2 of catalytic converter；It is useless
The gas outlet of the shell 2 of gas purifier is connect with the air inlet of after-treatment system 6；The after-treatment system 6 includes adsorbent equipment
61 and absorption plant 62.
The demister 51 is wet type packed tower；The dust-extraction unit 52 is bag-type dust collector.
The adsorbent equipment 61 has the activated carbon adsorption layer being superimposed and alumina adsorption layer；The absorption plant
62 include cylinder, and adsorption liquid is equipped in cylinder；The adsorption liquid is lye of the pH value 7~14.
The ratio of the perimeter of section of the perimeter of section of the shell 2 of the catalytic converter and the first exhaust piping 53 is 0.5.
(embodiment three)
See Fig. 3, there are three electrode assemblies 1 for basic unit of discharging in present invention tool；The electrode assembly 1 includes being connected with to lead
The electrode 11 of line, and all cover with the shape of electrode 11 light-transmitting plate 12 of its upper surface；Each electrode 11 is in sleeve-shaped, and
For copper mesh plate, in order to light transmission；Each electrode 11 is mutually parallel；Each light-transmitting plate 12 is organic glass, and the surface of light-transmitting plate 12 is equal
Catalyst layer coated with 3 μ m-thicks；The material of catalyst layer is compound aluminium oxide and cobalt oxide；Between neighbouring electrode modules 1
Gap formed discharge space.
The gap of discharge space is 10mm.
The thickness of electrode 11 is 0.5mm；Aperture on electrode 11 is 6mm.
See Fig. 6 and Fig. 7, there is catalytic converter in the present invention shell 2, shell 2 to be equipped with air inlet and gas outlet；Outside
Discharge reactor 3 is equipped in shell 2；The discharge reactor 3 includes multiple above-mentioned electric discharge basic units；Each electric discharge basic unit
It is connect with high-voltage pulse or AC power 4 by its conducting wire after parallel connection.
Discharge reactor 3 and the volume ratio of shell 2 are 0.7；The shell 2 is along off-gas flows direction length in 0.6m.
Air inlet pipe is equipped at the air inlet of the shell 2；The ratio 15 of the sectional area of shell 2 and the sectional area of air inlet pipe:
1。
Sensor 7 is equipped at the air inlet of the shell 2 and gas outlet；The sensor 7 includes ozone sensor, gas
Flow/flow-rate sensor, gas flow sensor, differential manometer.
The combination of the high-voltage pulse or output voltage of AC power 4, frequency or voltage and frequency can be by manual
It adjusts, the signal of sensor 7 is adjusted or the combination of aforementioned the two regulative mode is adjusted.
See Fig. 8, waste gas cleaning system in the present invention, by off-gas flows direction successively equipped with pretreatment system 5, such as above-mentioned
Catalytic converter and after-treatment system 6；The pretreatment system 5 is equipped with demister 51 and dedusting successively along off-gas flows direction
Device 52；The gas outlet of dust-extraction unit 51 is connect by the first exhaust piping 53 with the air inlet of the shell 2 of catalytic converter；It is useless
The gas outlet of the shell 2 of gas purifier is connect with the air inlet of after-treatment system 6；The after-treatment system 6 includes adsorbent equipment
61。
The adsorbent equipment 61 has the kieselguhr adsorption layer being superimposed and silica adsorption layer.
The ratio of the perimeter of section of the perimeter of section of the shell 2 of the catalytic converter and the first exhaust piping 53 is
1.5.,
(example IV)
See Fig. 4, there are three electrode assemblies 1 for electric discharge basic unit tool in the present invention in the present invention；The electrode assembly 1 includes
It is connected with the electrode 11 of conducting wire, and all covers the light-transmitting plate 12 of its upper surface with the shape of electrode 11；Each electrode 11 is in
Sleeve-shaped, and be stainless steel web plate；Each electrode 11 is mutually parallel；Each light-transmitting plate 12 is quartz, and the surface of light-transmitting plate 12 applies
It is covered with the catalyst layer of 3 μ m-thicks；The material of catalyst layer is cobalt oxide；It is empty that gap between neighbouring electrode modules 1 forms electric discharge
Between.
The gap of discharge space is 10mm.
The thickness of electrode 11 is 1mm；Aperture on electrode 11 is 0.5mm.
See Fig. 7, there is catalytic converter in the present invention shell 2, shell 2 to be equipped with air inlet and gas outlet；In shell 2
Equipped with discharge reactor 3；The discharge reactor 3 includes multiple above-mentioned electric discharge basic units；Each electric discharge basic unit is in parallel
It is connect afterwards with high-voltage pulse or AC power 4 by its conducting wire.
Discharge reactor 3 and the volume ratio of shell 2 are 0.6；The shell 2 is along off-gas flows direction length in 0.5m.
Air inlet pipe is equipped at the air inlet of the shell 2；The ratio 5 of the sectional area of shell 2 and the sectional area of air inlet pipe:1.
Sensor 7 is equipped at the air inlet of the shell 2 and gas outlet；The sensor 7 includes ozone sensor, gas
Flow/flow-rate sensor, gas flow sensor, differential manometer, thermocouple.
The combination of the high-voltage pulse or output voltage of AC power 4, frequency or voltage and frequency can be by manual
It adjusts, the signal of sensor 7 is adjusted or the combination of aforementioned the two regulative mode is adjusted.
See Fig. 8, waste gas cleaning system in the present invention, by off-gas flows direction successively equipped with pretreatment system 5, such as above-mentioned
Catalytic converter and after-treatment system 6；The pretreatment system 5 is equipped with demister 51 and dedusting successively along off-gas flows direction
Device 52；The gas outlet of dust-extraction unit 51 is connect by the first exhaust piping 53 with the air inlet of the shell 2 of catalytic converter；It is useless
The gas outlet of the shell 2 of gas purifier is connect with the air inlet of after-treatment system 6；The after-treatment system 6 includes adsorbent equipment
61 and absorption plant 62.
The adsorbent equipment 61 has the activated carbon adsorption layer being superimposed and alumina adsorption layer；The absorption plant
62 include cylinder, and adsorption liquid is equipped in cylinder；The adsorption liquid is lye of the pH value 12.
The ratio of the perimeter of section of the perimeter of section of the shell 2 of the catalytic converter and the first exhaust piping 53 is 1.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the present invention
Within the scope of shield.
Claims (10)
1. a kind of electric discharge basic unit, it is characterised in that：With at least two electrode assemblies (1)；The electrode assembly (1) includes
It is connected with the electrode (11) of conducting wire, and with the shape of electrode (11) or the light-transmitting plate of whole covering one side or both sides
(12)；The electrode (11) is porous metallic plate or metal film；The surface of the light-transmitting plate (12) is coated with catalyst layer；
Gap between neighbouring electrode modules (1) forms discharge space.
2. electric discharge basic unit according to claim 1, it is characterised in that：The electrode (11) of each electrode assembly (1) is mutual
Parallel, each electrode (11) is in tabular or sleeve-shaped.
3. electric discharge basic unit according to claim 1, it is characterised in that：The gap of discharge space is 0.1~20mm.
4. electric discharge basic unit according to claim 1, it is characterised in that：The thickness of electrode (11) is 0.05~1mm；Electricity
Aperture on pole (11) is 0.1~10mm.
5. electric discharge basic unit according to claim 1, it is characterised in that：The thickness of catalyst layer is 0.1~5 μm；It urges
The material of agent layer is one or more composite materials in gold, silver, platinum, calcium, potassium, aluminium, zirconium, copper, iron, titanium, manganese, cerium, cobalt, or
Gold, silver, platinum, calcium, potassium, aluminium, zirconium, copper, iron, titanium, manganese, cerium, cobalt oxide in one or more composite materials.
6. there is a kind of catalytic converter shell (2), shell (2) to be equipped with air inlet and gas outlet；It is equipped with and puts in shell (2)
Electric reactor (3)；It is characterized in that：The discharge reactor (3) includes one or more such as one of claim 1 to 5
The electric discharge basic unit；It is connect with high-voltage pulse or AC power (4) by its conducting wire after each electric discharge basic unit parallel connection.
7. catalytic converter according to claim 6, it is characterised in that：The volume ratio of discharge reactor (3) and shell (2)
Example is 0.3~0.9；The shell (2) is along off-gas flows direction length in 0.3m~1m.
8. catalytic converter according to claim 7, it is characterised in that：Air inlet is equipped at the air inlet of the shell (2)
Pipe；The sectional area of shell (2) and be 1~20 with the ratio of the sectional area of air inlet pipe.
9. a kind of waste gas cleaning system, it is equipped with pretreatment system (5), as claimed in claim 8 successively by off-gas flows direction
Catalytic converter and after-treatment system (6)；It is characterized in that：The pretreatment system (5) is equipped with successively along off-gas flows direction
Demister (51) and dust-extraction unit (52)；The gas outlet of dust-extraction unit (51) passes through the first exhaust piping (53) and waste gas purification
The air inlet of the shell (2) of device connects；The gas outlet of the shell (2) of catalytic converter connects with the air inlet of after-treatment system (6)
It connects；The after-treatment system (6) includes adsorbent equipment (61) and/or absorption plant (62).
10. the waste gas cleaning system for being according to claim 9, it is characterised in that：The adsorbent equipment (61) has manganese oxide
Adsorption layer, cerium oxide adsorption layer, cobalt oxide adsorption layer, activated carbon adsorption layer, alumina adsorption layer, kieselguhr adsorption layer and dioxy
One or more of SiClx adsorption layer combines；The absorption plant (62) includes cylinder, and adsorption liquid is equipped in cylinder；The suction
Attached liquid is lye of the pH value 7~14.
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| CN201810446591.3A CN108404657A (en) | 2018-05-11 | 2018-05-11 | A kind of electric discharge basic unit, catalytic converter and waste gas cleaning system |
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| CN201810446591.3A CN108404657A (en) | 2018-05-11 | 2018-05-11 | A kind of electric discharge basic unit, catalytic converter and waste gas cleaning system |
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