CN1648425A - Integrated low temperature plasma catalytic reactor for exhaust gas purification - Google Patents
Integrated low temperature plasma catalytic reactor for exhaust gas purification Download PDFInfo
- Publication number
- CN1648425A CN1648425A CN200410065415.3A CN200410065415A CN1648425A CN 1648425 A CN1648425 A CN 1648425A CN 200410065415 A CN200410065415 A CN 200410065415A CN 1648425 A CN1648425 A CN 1648425A
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- Prior art keywords
- low temperature
- discharge
- temperature plasma
- negative pole
- tail gas
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- 230000003197 catalytic effect Effects 0.000 title claims abstract description 22
- 238000000746 purification Methods 0.000 title abstract description 16
- 239000003054 catalyst Substances 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims description 29
- 229910001220 stainless steel Inorganic materials 0.000 claims description 18
- 239000010935 stainless steel Substances 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 239000011889 copper foil Substances 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000000919 ceramic Substances 0.000 claims description 9
- 239000010453 quartz Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 230000001413 cellular effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 24
- 230000000977 initiatory effect Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000013543 active substance Substances 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Exhaust Gas After Treatment (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The present invention utilizes the synergistic effect of low temperature plasma purification and catalytic purification, and utilizes the low temperature plasma generating high energy active matter to raise the reaction activity of catalyst, lower the igniting temperature of catalyst, expand the operation window of catalyst and raise the conversion rate. One integral low temperature plasma catalyzing reactor for tail gas purification is designed, and the reactor includes casing, honeycomb carrier catalyst and low temperature plasma generator and features the honeycomb carrier catalyst installed in the gas outlet of the casing and the low temperature plasma generator comprising mainly pulse generator with positive pole connected to positive pole rod and negative pole connected to negative pole rod, and discharge assembly installed in the gas inlet of the casing.
Description
Technical field
The present invention relates to a kind of harmful gas purifier, especially a kind of integrated low temperature plasma catalytic reactor that is used for tail gas clean-up.
Background technique
As everyone knows, vehicle exhaust has become the main source of urban air pollution, and for this reason, strict regulations have all been made to the discharging of Vehicular exhaust in countries in the world, and therefore, how can make the motor-vehicle tail-gas qualified discharge is present research focus.Motor vehicle emission tail gas is unavoidable, and best bet was done corresponding processing to it exactly before tail gas enters atmosphere, reduces oxious component, protects environment to greatest extent.The main means of handling for vehicle exhaust are to utilize catalyzer that the tail gas of discharging is handled at present, make it qualified discharge.The catalyst converter that adopts on the automobile is mainly three-way catalytic converter, that uses on the motorcycle is mainly oxidizing catalytic converter, all there is following shortcoming in they: (1) cold starting performance is poor, because also do not reach initiation temperature, cleaning of off-gas effectively at the catalyzer of engine cold-start during the stage; (2) changing effect is subjected to excess air coefficient (the required theoretical air quality of air quality/perfect combustion 1kg fuel of burning 1kg fuel institute effective supply) influence big, catalyzer only when the operation of very narrow window (excess air coefficient is at 1 annex) can be simultaneously effective catalytic purification tail gas, mixed gas is crossed the purification that rare or overrich all is unfavorable for tail gas.This also just we the main cause that tail gas is big, penetrating odor is heavier, discharging is not up to standard during common car engine; to this; existing catalyst converter class exhaust gas processing device all can't be solved; therefore, solving the tail gas problem that exceeds standard in vehicle cold start-up stage is the task of top priority that solves tail gas pollution protection environment with enlarging catalyst purification run window.
Summary of the invention
The objective of the invention is to utilize the synergistic purification function between low temperature plasma purification and the catalyzer purification, the high energy active substance that utilizes low temperature plasma to produce improves the reactivity of catalyzer, reduce the initiation temperature of catalyzer, widen the action pane of catalyzer, improve the principle of conversion ratio and a kind of integrated low temperature plasma catalytic reactor that is used for tail gas clean-up of designing.
Technological scheme of the present invention is:
A kind of integrated low temperature plasma catalytic reactor that is used for tail gas clean-up, comprise housing, honeycomb substrate catalyzer, low temperature plasma generating means, it is characterized in that the honeycomb substrate catalyzer is installed in the outlet side of housing, the low temperature plasma generating means mainly is made up of pulse oscillator and discharge assembly, wherein discharge assembly is installed in the inlet end of housing, the positive pole of pulse oscillator links to each other with anodal bar, the negative pole of pulse oscillator links to each other with discharge negative pole in the discharge assembly, and anodal bar links to each other with discharge lever in the discharge assembly.
The present invention has also taked following technical measures:
Described honeycomb substrate catalyzer or be ceramic honeycomb carrier catalyzer or for metallic honeycomb substrate catalyst, the axis of its cellular through hole and the axis of housing are in the same way.
Described discharge assembly mainly is made up of discharge lever, discharge lever support ring, insulation tube, discharge negative pole, be coated with catalyzer on the discharge lever, insulation tube is installed in the housing inner chamber, the discharge negative pole is installed between housing internal chamber wall and the insulation tube outer wall, the discharge lever support ring is installed in the insulation tube, two end bearings of discharge lever are on discharge lever support ring separately, and discharge lever stretches out the outer end of insulation tube and links to each other with the positive pole of pulse oscillator, and the discharge negative pole links to each other with the negative pole of pulse oscillator.
Described discharge lever stretches out on the outer end of insulation tube spring sheet is installed, spring sheet contacts with an end of anodal bar, anodal bar is nested in the insulated column, and insulated column passes shell body wall and is fixed on the shell body wall, and the other end of anodal bar links to each other with the positive pole of pulse oscillator.
Described insulated column is the ceramic insulation post.
Described discharge negative pole is made up of paper tinsel shape metal outer, internal layer and the corrugated wire netting between paper tinsel shape metal outer, internal layer.Paper tinsel shape metal outer contacts with the inwall of housing, and paper tinsel shape metal internal layer contacts with the outside of insulation tube.
Described paper tinsel shape metal outer, internal layer are Copper Foil internal layer, Copper Foil skin.
Described insulation tube is a quartz tube, and the discharge lever support ring is a quartz ring.
The negative pole of described pulse oscillator links to each other with an end of negative pole bar, and the other end of negative pole bar is fixed on the outer surface of housing, and the discharge negative pole links to each other with the negative pole bar by housing.。
Described housing is a Stainless Steel Shell, and discharge lever is the stainless steel discharge bar that is coated with catalyzer.
Beneficial effect of the present invention:
The present invention has given full play to the synergistic purification function between low temperature plasma purification and the catalyzer purification, by with both organic combinations, the high energy active substance that utilizes the low temperature plasma generating means to produce improves the reactivity of catalyzer, reduced the initiation temperature of catalyzer, widen the action pane of catalyzer, improved conversion ratio.Integrated low temperature plasma catalytic reactor can be widely used in fields, aspect such as motor vehicle tail-gas purifying, gas cleaning, organic waste-gas purification, has advantage simple in structure, easily manufactured simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structure and the mounting point schematic representation of discharge negative pole of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As shown in Figure 1, 2.
A kind of integrated low temperature plasma catalytic reactor that is used for purifying vehicle exhaust, comprise Stainless Steel Shell 1, metallic honeycomb substrate catalyst 2, the low temperature plasma generating means, metal honeycomb catalyst 2 is installed among the outlet side B of Stainless Steel Shell 1, the low temperature plasma generating means is mainly by homemade pulse oscillator 3 (discharge voltage 12kV, discharge frequency 20kHz, power 30W) and the discharge assembly that is installed among the inlet end A of Stainless Steel Shell 1 form, discharge assembly is mainly by stainless steel discharge bar 4, the quartzy support ring 5 of discharge lever, 6, quartzy insulation tube 7, discharge negative pole 8 is formed, and is coated with catalyzer on the stainless steel discharge bar 4; Quartzy insulation tube 7 is installed in the inner chamber of Stainless Steel Shell 1, discharge negative pole 8 is installed between the outer wall of the internal chamber wall of housing 1 and quartzy insulation tube 7, the quartzy support ring 5,6 of discharge lever is installed in two ends of quartzy insulation tube 7, two end bearings of stainless steel discharge bar 4 are on the quartzy support ring 5,6 of discharge lever separately, stainless steel discharge bar 4 stretches out on quartzy insulation tube 7 end outward spring sheet 9 is installed, spring sheet 9 contacts with an end of anodal bar 10, and spring sheet 9 is welded on the stainless steel discharge bar 4; Anodal bar 10 is by clamping leaf spring 9, thereby circuit is connected, and does advantage like this and is between the two it is to flexibly connect, and can avoid vibrating or to push the circuit that causes not smooth; Anodal in addition bar 10 is nested in the ceramic insulation post 11, ceramic insulation post 11 passes the shell wall of housing 1 and is fixed on the shell wall, the other end of anodal bar 10 links to each other with the positive pole of pulse oscillator 3, the negative pole of pulse oscillator 3 links to each other with negative pole bar 12, and negative pole bar 12 is fixed on the outer surface of Stainless Steel Shell 1.
Also useful ceramics honeycomb substrate catalyzer replacement of metallic honeycomb substrate catalyst 2 during concrete enforcement, no matter be metallic honeycomb substrate catalyst 1 or ceramic honeycomb carrier catalyzer, the axis of the axis of its cellular through hole and housing 1 is (parallel) in the same way, if adopt metallic honeycomb substrate catalyst then it can be welded on Stainless Steel Shell 1 outlet side inner and with an end of quartzy insulation tube 7 join to, if adopt the ceramic honeycomb carrier catalyzer then can by inflated insert be fixed in the outlet side of Stainless Steel Shell 1 inner and with an end of quartzy insulation tube 7 join to.
The discharge negative pole 8 of present embodiment is made up of Copper Foil skin 13, internal layer 14 and the corrugated wire netting 15 between Copper Foil skin, internal layer 13,14.Copper Foil outer 13 contacts with the inwall of Stainless Steel Shell 1, and Copper Foil internal layer 14 contacts with the outside of quartzy insulation tube 7.The outer surface of Copper Foil skin 13 of further saying so contacts with the inwall of Stainless Steel Shell 1, the internal surface of Copper Foil internal layer 14 contacts with the outside of quartzy insulation tube 7, and corrugated wire netting 15 contacts with the internal surface of Copper Foil skin 13 and the outer surface of Copper Foil internal layer 14 respectively.
The employed catalyzer of present embodiment can be the vent gas treatment conventional catalyst.
Working procedure of the present invention is:
During automobile starting; pulse oscillator 3 is promptly started working; in low-temperature plasma generator, produce a large amount of free radicals and quasimolecule; as OH; O; NO etc.; their chemical property is very active; be easy to tail gas in pollution components such as CO; HC and NOx react; make the rapid ignition of catalyzer; thereby reach the purpose that reduces the catalyzer initiation temperature; simultaneously because the free radicals that low-temperature plasma generator produces can promote the catalytic reaction process of catalyzer; reduce the catalytic reaction condition requirement of simple dependence catalyzer, enlarged the action pane of catalyzer, can significantly improve the effect of tail gas catalytic purification.This device not only can be used to handle motor-vehicle tail-gas, but also smoke treatment and other organic exhaust gas have superior environmental-protecting performance, purification efficiency height, low, the no secondary pollution of energy consumption.
Claims (10)
1, a kind of integrated low temperature plasma catalytic reactor that is used for tail gas clean-up, comprise housing, honeycomb substrate catalyzer, low temperature plasma generating means, it is characterized in that honeycombed catalyst is installed in the outlet side of housing, the low temperature plasma generating means mainly is made up of pulse oscillator and discharge assembly, wherein discharge assembly is installed in the inlet end of housing, the positive pole of pulse oscillator links to each other with anodal bar, the negative pole of pulse oscillator links to each other with discharge negative pole in the discharge assembly, and anodal bar links to each other with discharge lever in the discharge assembly.
2, the integrated low temperature plasma catalytic reactor that is used for tail gas clean-up according to claim 1, it is characterized in that described honeycomb substrate catalyzer or for the ceramic honeycomb carrier catalyzer or for metallic honeycomb substrate catalyst, the axis of its cellular through hole and the axis of housing are in the same way.
3, the integrated low temperature plasma catalytic reactor that is used for tail gas clean-up according to claim 1, it is characterized in that described discharge assembly is mainly by discharge lever, the discharge lever support ring, insulation tube, the discharge negative pole is formed, be coated with catalyzer on the discharge lever, insulation tube is installed in the housing inner chamber, the discharge negative pole is installed between housing internal chamber wall and the insulation tube outer wall, the discharge lever support ring is installed in the insulation tube, two end bearings of discharge lever are on discharge lever support ring separately, discharge lever stretches out the outer end of insulation tube and links to each other with the positive pole of pulse oscillator, and the discharge negative pole links to each other with the negative pole of pulse oscillator.
4, the integrated low temperature plasma catalytic reactor that is used for tail gas clean-up according to claim 3, it is characterized in that discharge lever stretches out on the outer end of insulation tube is equipped with spring sheet, spring sheet contacts with an end of anodal bar, anodal bar is nested in the insulated column, insulated column passes shell body wall and is fixed on the shell body wall, and the other end of anodal bar links to each other with the positive pole of pulse oscillator.
5, the integrated low temperature plasma catalytic reactor that is used for tail gas clean-up according to claim 3 is characterized in that described insulated column is the ceramic insulation post.
6, the integrated low temperature plasma catalytic reactor that is used for tail gas clean-up according to claim 3, it is characterized in that described discharge negative pole is made up of paper tinsel shape metal outer, internal layer and the corrugated wire netting between paper tinsel shape metal outer, internal layer, paper tinsel shape metal outer contacts with the inwall of housing, and paper tinsel shape metal internal layer contacts with the outside of insulation tube.
7, the integrated low temperature plasma catalytic reactor that is used for tail gas clean-up according to claim 6 is characterized in that described paper tinsel shape metal outer, internal layer are Copper Foil internal layer, Copper Foil skin.
8, the integrated low temperature plasma catalytic reactor that is used for tail gas clean-up according to claim 3 is characterized in that described insulation tube is a quartz tube, and the discharge lever support ring is a quartz ring.
9, the integrated low temperature plasma catalytic reactor that is used for tail gas clean-up according to claim 1 is characterized in that the negative pole of pulse oscillator links to each other with the negative pole bar, and the negative pole bar is fixed on the outer surface of housing, and the discharge negative pole links to each other with the negative pole bar by housing.
10, the integrated low temperature plasma catalytic reactor that is used for tail gas clean-up according to claim 1 is characterized in that described housing is a Stainless Steel Shell, and discharge lever is the stainless steel discharge bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100654153A CN1328486C (en) | 2004-12-02 | 2004-12-02 | Integrated low temperature plasma catalytic reactor for exhaust gas purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100654153A CN1328486C (en) | 2004-12-02 | 2004-12-02 | Integrated low temperature plasma catalytic reactor for exhaust gas purification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1648425A true CN1648425A (en) | 2005-08-03 |
| CN1328486C CN1328486C (en) | 2007-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100654153A Expired - Fee Related CN1328486C (en) | 2004-12-02 | 2004-12-02 | Integrated low temperature plasma catalytic reactor for exhaust gas purification |
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| Country | Link |
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| CN (1) | CN1328486C (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344026B (en) * | 2008-08-21 | 2010-07-21 | 上海交通大学 | System for low temperature plasma pre-oxidizing NOx of auxiliary NH3-SCR fine purification diesel engine |
| CN102359422A (en) * | 2011-09-20 | 2012-02-22 | 尹协谦 | Method for improving tail gas cleanup by utilizing plasma jet as engine intake |
| CN103362602A (en) * | 2012-03-30 | 2013-10-23 | 蔡诗敏 | Automobile exhaust purification device |
| CN104062154A (en) * | 2014-06-20 | 2014-09-24 | 江苏大学 | Sampling device of collaborative particulates of low-temperature plasma generator and sampling method |
| CN105134340A (en) * | 2015-09-24 | 2015-12-09 | 重庆市科学技术研究院 | Titanium pipe electric purification device for automobile exhaust gas |
| WO2016034153A3 (en) * | 2014-09-04 | 2016-05-12 | 苏州鼎德电环保科技有限公司 | Waste gas processing apparatus using plasma |
| CN106050367A (en) * | 2016-07-19 | 2016-10-26 | 华北电力大学（保定） | Three-section type automotive exhaust treatment device |
| CN107081057A (en) * | 2017-05-03 | 2017-08-22 | 江苏天楹环保能源成套设备有限公司 | Cold plasma arrangement for catalytic purification for handling medical wastes incineration tail gas |
| CN107288718A (en) * | 2016-04-13 | 2017-10-24 | 东北林业大学 | Automobile exhaust purifier |
| CN107486017A (en) * | 2017-08-30 | 2017-12-19 | 大连民族大学 | A kind of plasma enhancing Ag/Al2O3The method of catalyst removal nitrogen oxides |
| CN107587917A (en) * | 2016-07-08 | 2018-01-16 | 上海尤顺汽车部件有限公司 | A kind of device and automobile for handling vehicle exhaust |
| CN107725151A (en) * | 2017-08-30 | 2018-02-23 | 昆明理工大学 | A kind of automobile exhaust gas purifying installation |
| CN107869374A (en) * | 2016-09-27 | 2018-04-03 | 上海尤顺汽车部件有限公司 | A kind of device and engine for handling motor exhaust |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995019494A1 (en) * | 1994-01-17 | 1995-07-20 | Joint-Stock Commercial Bank 'petrovsky' | Device for removing solid particles from exhaust gases, design of a unit for neutralising harmful waste gases and a method of manufacturing said unit |
| CN2259316Y (en) * | 1996-04-19 | 1997-08-13 | 桂林利凯特环保实业有限公司 | Exhaust catalytic purifying apparatus for vehicle |
| GB0030749D0 (en) * | 2000-12-15 | 2001-01-31 | Aea Technology Plc | Plasma reactor gas processing |
| JP2004181418A (en) * | 2002-12-05 | 2004-07-02 | Toyota Central Res & Dev Lab Inc | PLASMA ASSISTING CATALYTIC APPARATUS FOR REMOVING NOx AND EXHAUST GAS CLEANING METHOD |
| JP4189337B2 (en) * | 2003-03-07 | 2008-12-03 | 本田技研工業株式会社 | Exhaust gas purification system |
-
2004
- 2004-12-02 CN CNB2004100654153A patent/CN1328486C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344026B (en) * | 2008-08-21 | 2010-07-21 | 上海交通大学 | System for low temperature plasma pre-oxidizing NOx of auxiliary NH3-SCR fine purification diesel engine |
| CN102359422A (en) * | 2011-09-20 | 2012-02-22 | 尹协谦 | Method for improving tail gas cleanup by utilizing plasma jet as engine intake |
| CN103362602A (en) * | 2012-03-30 | 2013-10-23 | 蔡诗敏 | Automobile exhaust purification device |
| CN103362602B (en) * | 2012-03-30 | 2016-01-20 | 蔡诗敏 | Automobile exhaust gas purifying installation |
| CN104062154A (en) * | 2014-06-20 | 2014-09-24 | 江苏大学 | Sampling device of collaborative particulates of low-temperature plasma generator and sampling method |
| WO2016034153A3 (en) * | 2014-09-04 | 2016-05-12 | 苏州鼎德电环保科技有限公司 | Waste gas processing apparatus using plasma |
| CN105134340A (en) * | 2015-09-24 | 2015-12-09 | 重庆市科学技术研究院 | Titanium pipe electric purification device for automobile exhaust gas |
| CN107288718A (en) * | 2016-04-13 | 2017-10-24 | 东北林业大学 | Automobile exhaust purifier |
| CN107587917A (en) * | 2016-07-08 | 2018-01-16 | 上海尤顺汽车部件有限公司 | A kind of device and automobile for handling vehicle exhaust |
| CN106050367A (en) * | 2016-07-19 | 2016-10-26 | 华北电力大学（保定） | Three-section type automotive exhaust treatment device |
| CN107869374A (en) * | 2016-09-27 | 2018-04-03 | 上海尤顺汽车部件有限公司 | A kind of device and engine for handling motor exhaust |
| CN107081057A (en) * | 2017-05-03 | 2017-08-22 | 江苏天楹环保能源成套设备有限公司 | Cold plasma arrangement for catalytic purification for handling medical wastes incineration tail gas |
| CN107081057B (en) * | 2017-05-03 | 2019-11-12 | 江苏天楹环保能源成套设备有限公司 | For handling the cold plasma arrangement for catalytic purification of medical wastes incineration tail gas |
| CN107725151A (en) * | 2017-08-30 | 2018-02-23 | 昆明理工大学 | A kind of automobile exhaust gas purifying installation |
| CN107486017A (en) * | 2017-08-30 | 2017-12-19 | 大连民族大学 | A kind of plasma enhancing Ag/Al2O3The method of catalyst removal nitrogen oxides |
| CN108031287A (en) * | 2017-08-30 | 2018-05-15 | 大连民族大学 | A kind of plasma enhancing Ag/Al2O3The method of catalyst removal nitrogen oxides |
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| CN1328486C (en) | 2007-07-25 |
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