CN202762284U - Low-temperature plasma reaction tube for harmful gas purification - Google Patents
Low-temperature plasma reaction tube for harmful gas purification Download PDFInfo
- Publication number
- CN202762284U CN202762284U CN 201220460220 CN201220460220U CN202762284U CN 202762284 U CN202762284 U CN 202762284U CN 201220460220 CN201220460220 CN 201220460220 CN 201220460220 U CN201220460220 U CN 201220460220U CN 202762284 U CN202762284 U CN 202762284U
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- low
- earthenware
- temperature plasma
- harmful gas
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 19
- 238000000746 purification Methods 0.000 title abstract description 8
- 238000012856 packing Methods 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000919 ceramic Substances 0.000 claims abstract description 8
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 229910052571 earthenware Inorganic materials 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 5
- 229920005479 Lucite® Polymers 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 abstract 2
- 239000011941 photocatalyst Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 32
- 230000000505 pernicious effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- TXVHTIQJNYSSKO-UHFFFAOYSA-N benzo[e]pyrene Chemical class C1=CC=C2C3=CC=CC=C3C3=CC=CC4=CC=C1C2=C34 TXVHTIQJNYSSKO-UHFFFAOYSA-N 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- -1 comprise housing Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006452 multicomponent reaction Methods 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical class [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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Abstract
The utility model discloses a low-temperature plasma reaction tube for harmful gas purification. The reaction tube comprises a casing (2), an air inlet (1), an air outlet (4) and a packing area (8), wherein the air inlet (1) is arranged at one end of the casing (2); the air outlet (4) is arranged at the other end of the casing (2); the packing area (8) is arranged in the middle of the casing (2); the casing (2) is in a two-layer sleeved pipe structure, the outer layer is a polymethyl methacrylate (PMMA) tube, and the inner layer is a ceramic layer; the packing of the packing area (8) inside the ceramic tube is ceramic Raschig rings after coating treatment by a photocatalyst, and a copper wire gauze (9) is coated on the outer surface of the ceramic tube; and a corona wire (6) penetrates through the center of the ceramic tube, and an earthing pole (3) is connected with the copper wire gauze (9). The reaction tube has the advantages of being high in purification efficiency, low in energy consumption, high in adaptability, free of secondary pollution, convenient to use and maintain and suitable for management of low-concentration harmful gas in production places of industrial enterprises.
Description
Technical field
The utility model relates to a kind of purifier of pernicious gas, and specifically it relates to a kind of device of plasma purification pernicious gas, is applicable to low concentration level (≤1000mg/m
3) VOCs, H
2The processing of the pernicious gases such as S.
Background technology
The pernicious gas that produces in the production process of the industries such as petrochemical industry, sewage disposal, garbage disposal, printing and weaving not only pollutes workshop condition, also can cause great injury to post staff healthy.This class pernicious gas mainly comprises the materials such as hydro carbons, alcohols, ketone, aldehydes, ethers, acids, amine and sulfide, except hydrogen sulfide and ammonia, mostly be greatly volatile organic matter (VOCs), wherein, the polycyclic aromatic hydrocarbons such as benzene class and benzopyrenes are strong carcinogens.
The country such as American-European, Japanese, Chinese has formulated such strict gas discharging standard, rational treatment measures have been taked for the high concentration abatement of noxious gases of concentrating discharging, mostly adopt absorption method, firing method or bioanalysis to administer, but the pernicious gas to general Workshop Production post, the characteristics such as concentration is low because it has, the tolerance fluctuation is larger, take said method to administer, have the problems such as cost is high, treatment effeciency is unstable.This pollutant if take direct venting practice, can cause again outdoor environment to affect problem.Therefore, at present, to the improvement of indoor low concentration environmental odors, be still one of hot issue of Air Pollution Control research.
Compare with the multiple purification techniques of studying at present, these two kinds of methods of low temperature plasma method and photocatalytic oxidation all have strong adaptability, and energy consumption is low, clean-up effect is remarkable, the characteristics of non-secondary pollution, in the improvement field of low concentration gas, application prospect is extensive.
Summary of the invention
The purpose of this utility model is exactly the problems referred to above that exist for prior art, and a kind of high efficiency, low energy consumption, non-secondary pollution is provided and can purifies multi-component reaction of low temperature plasma pipe for cleaning harmful gas.
For achieving the above object, the reaction of low temperature plasma pipe that the utility model is used for cleaning harmful gas by the following technical solutions:
The utility model is used for the reaction of low temperature plasma pipe of cleaning harmful gas, comprise housing, air inlet, gas outlet, filler, air inlet is positioned at an end of housing, the gas outlet is positioned at the other end of housing, filler is positioned at the middle part of housing, it is characterized in that: described housing is inside and outside two-layer sleeve structure, and skin is lucite tube, internal layer is earthenware, and lucite tube plays the external support effect; The filler in the inner stuffing district of earthenware makes filling surface adhere to one deck photochemical catalyst for the ceramic raschig rings through the photochemical catalyst coating film treatment, and such as Nano titanium dioxide etc., uniform filling is arranged; The earthenware outer surface is enclosed with copper mesh; Corona wire passes the center of earthenware, and earthing pole connects copper mesh.
For just pernicious gas is evenly by reaction tube, installation is used for the porous plate that air-flow distributes in earthenware.
Under normal pressure, the main discharge mode that produces low temperature plasma is corona discharge and dielectric barrier discharge.Compare with corona discharge, dielectric barrier discharge is more even, stable, and capacity usage ratio is higher, uses more extensive aspect the Purge gas pollutant.
The operation principle that the utility model is used for the reaction of low temperature plasma pipe of cleaning harmful gas is: the corona wire that is connected with high-voltage ac power is as the discharge electrode of gas discharge, in earthenware, carry out dielectric barrier discharge, low temperature plasma by the electrion acquisition, contain O, OH isoreactivity particle that the excitation of a large amount of high energy electrons and high energy electron produces, the pernicious gas pollutant can be oxidized to CO
2, CO, H
2Other harmless object such as O or low poisonous substance.
When photochemical catalyst cooperating with low-temperature plasma treatment pernicious gas is arranged, because the existence of high energy electron and active particle can make catalyst play catalytic effect under lower temperature even normal temperature, greatly reduce catalyst activation temperature.In plasma reactor, introduce catalyst, also can change the discharge condition of plasma, improve oxidation, purification efficient.
In actual use, the low temp plasma purifier of packing into after the parallel connection of one group of reaction of low temperature plasma pipe can be consisted of multitube parallel formula low temp plasma purifier.
The utility model has the following advantages after being used for the reaction of low temperature plasma pipe employing technique scheme of cleaning harmful gas:
(1) effectively combines two kinds of methods of plasma and photocatalysis: when dielectric barrier discharge produces plasma purification pernicious gas pollutant one's share of expenses for a joint undertaking, dielectric space is covered with fine electric pulse and corona light, and this corona light provides light source for photochemical catalytic oxidation.And photocatalytic process oxidized part pollutant has not only changed the discharge condition of low temperature plasma simultaneously, has improved the purification efficiency of pernicious gas.
(2) this reaction tube energy consumption is low, dielectric barrier discharge applied voltage higher (power supply is high-voltage ac power, and response voltage is between 16kV-23kV), but the electric current of dielectric barrier discharge only shows as a large amount of micro discharges that exist in the discharge space, be the conducted state of current filament, discharge power is low.
(3) this reaction tube purifying contaminated thing is thorough, non-secondary pollution.
(4) this reaction tube strong adaptability can purify the pernicious gas that contains various ingredients.
Description of drawings
Fig. 1 is the reaction of low temperature plasma tubular construction schematic diagram that the utility model is used for cleaning harmful gas.
Reference numeral is: the 1-air inlet; The 2-housing; The 3-earthing pole; The 4-gas outlet; The 5-flange; 6
Corona wire; The 7-porous plate; The 8-packing area; 9 copper mesh.
The specific embodiment
For further describing the utility model, below in conjunction with accompanying drawing the reaction of low temperature plasma pipe that the utility model is used for cleaning harmful gas is described in more detail.
The reaction of low temperature plasma tubular construction schematic diagram that is used for cleaning harmful gas by the utility model shown in Figure 1 is found out, it comprises housing 2, air inlet 1, gas outlet 4, packing area 8, air inlet 1 is positioned at an end of housing 2, gas outlet 4 is positioned at the other end of housing 2, packing area 8 is positioned at the middle part of housing 2, described housing 2 is inside and outside two-layer sleeve structure, and skin is lucite tube, and internal layer is earthenware; The filler in the inner stuffing district 8 of earthenware is the ceramic raschig rings through the photochemical catalyst coating film treatment, and the earthenware outer surface is enclosed with copper mesh 9; Corona wire 6 passes the center of earthenware, and earthing pole 3 connects copper mesh 9.In earthenware, install and be used for the porous plate 7 that air-flow distributes.For ease of installing, be provided with flange 5 in the outlet side of housing 2, gas outlet 4 is positioned at the centre of flange 5.
Claims (2)
1. reaction of low temperature plasma pipe that is used for cleaning harmful gas, comprise housing (2), air inlet (1), gas outlet (4), packing area (8), air inlet (1) is positioned at an end of housing (2), gas outlet (4) is positioned at the other end of housing (2), packing area (8) is positioned at the middle part of housing (2), it is characterized in that: described housing (2) is inside and outside two-layer sleeve structure, and skin is lucite tube, and internal layer is earthenware; The filler in the inner stuffing district (8) of earthenware is the ceramic raschig rings through the photochemical catalyst coating film treatment, and the earthenware outer surface is enclosed with copper mesh (9); Corona wire (6) passes the center of earthenware, and earthing pole (3) connects copper mesh (9).
2. the reaction of low temperature plasma pipe for cleaning harmful gas as claimed in claim 1 is characterized in that: the porous plate (7) that is used for the air-flow distribution is installed in earthenware.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220460220 CN202762284U (en) | 2012-09-11 | 2012-09-11 | Low-temperature plasma reaction tube for harmful gas purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220460220 CN202762284U (en) | 2012-09-11 | 2012-09-11 | Low-temperature plasma reaction tube for harmful gas purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202762284U true CN202762284U (en) | 2013-03-06 |
Family
ID=47768888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220460220 Expired - Fee Related CN202762284U (en) | 2012-09-11 | 2012-09-11 | Low-temperature plasma reaction tube for harmful gas purification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202762284U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104492249A (en) * | 2014-12-29 | 2015-04-08 | 中国科学院广州能源研究所 | Plasma dry-type flue gas desulfurization method |
| CN105642108A (en) * | 2016-01-06 | 2016-06-08 | 中国科学院力学研究所 | Method and system for recycling and treating CO in metallurgical industry |
| CN106268209A (en) * | 2016-08-29 | 2017-01-04 | 四川环翔科技有限责任公司 | Low temperature plasma synchronizes catalysis gas cleaning plant |
| CN106975329A (en) * | 2017-04-13 | 2017-07-25 | 上海大学 | Vacuum plasma stacked tubular air purifier |
| CN109718644A (en) * | 2019-01-14 | 2019-05-07 | 江苏河海新能源股份有限公司 | A kind of plasma desulfuration apparatus and method |
| CN110578149A (en) * | 2018-06-10 | 2019-12-17 | 江苏君睿智能制造有限公司 | Pickling unit before rolling of cold-rolled strip steel |
| CN111715066A (en) * | 2020-05-19 | 2020-09-29 | 中国石油天然气股份有限公司 | Device and method for degrading toluene through gas discharge photocatalysis in oil field pump room |
-
2012
- 2012-09-11 CN CN 201220460220 patent/CN202762284U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104492249A (en) * | 2014-12-29 | 2015-04-08 | 中国科学院广州能源研究所 | Plasma dry-type flue gas desulfurization method |
| CN104492249B (en) * | 2014-12-29 | 2016-04-20 | 中国科学院广州能源研究所 | A kind of plasma dry fume desulphurization method |
| CN105642108A (en) * | 2016-01-06 | 2016-06-08 | 中国科学院力学研究所 | Method and system for recycling and treating CO in metallurgical industry |
| CN106268209A (en) * | 2016-08-29 | 2017-01-04 | 四川环翔科技有限责任公司 | Low temperature plasma synchronizes catalysis gas cleaning plant |
| CN106975329A (en) * | 2017-04-13 | 2017-07-25 | 上海大学 | Vacuum plasma stacked tubular air purifier |
| CN106975329B (en) * | 2017-04-13 | 2019-11-15 | 上海大学 | Vacuum plasma stacked tubular air purification device |
| CN110578149A (en) * | 2018-06-10 | 2019-12-17 | 江苏君睿智能制造有限公司 | Pickling unit before rolling of cold-rolled strip steel |
| CN109718644A (en) * | 2019-01-14 | 2019-05-07 | 江苏河海新能源股份有限公司 | A kind of plasma desulfuration apparatus and method |
| CN111715066A (en) * | 2020-05-19 | 2020-09-29 | 中国石油天然气股份有限公司 | Device and method for degrading toluene through gas discharge photocatalysis in oil field pump room |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20160911 |