CN103953419A - Device and method for purifying tail gas of automobile - Google Patents
Device and method for purifying tail gas of automobile Download PDFInfo
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- CN103953419A CN103953419A CN201410137496.7A CN201410137496A CN103953419A CN 103953419 A CN103953419 A CN 103953419A CN 201410137496 A CN201410137496 A CN 201410137496A CN 103953419 A CN103953419 A CN 103953419A
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- automobile
- elemental oxygen
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- outlet pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses and provides a device and a method for purifying tail gas of an automobile, which have the advantages that the discharge value of toxic substances is low, the purification effect is good, the service life is long and the safety performance is high. The device for purifying the tail gas of the automobile comprises an exhaust pipe, a high-voltage static device, a ternary catalytic device, an elemental oxygen generation device and a high-voltage power supply, wherein the high-voltage static device, the ternary catalytic device and the elemental oxygen generation device are sequentially arranged in the exhaust pipe from front to back, the high-voltage power supply is respectively and electrically connected with the high-voltage static device and the elemental oxygen generation device, the side wall, which is arranged between the ternary catalytic device and the elemental oxygen generation device, of the exhaust pipe is provided with an air charging pipeline, and an opening of the air charging pipeline faces the head of the automobile. The method for purifying the tail gas of the automobile comprises the following steps that the high-voltage static device clears away fume of the tail gas of the automobile; the ternary catalytic device is used for carrying out ternary catalysis to clear away hydrocarbon compounds, nitric oxides and a part of carbon monoxide in the tail gas of the automobile; the elemental oxygen generation device is used for providing elemental oxygen to oxidize with the surplus carbon monoxide to generate carbon dioxide. The device and the method for purifying the tail gas of the automobile can be widely applied to the field of automobiles.
Description
Technical field
The present invention relates to a kind of automobile exhaust purifier and purification method.
Background technique
In today of modern civilization, automobile has become the transport facility that the mankind are indispensable.Automobile brings great convenience to people's live and work.But we also see, along with automobile industry high speed development, automobile uses simultaneously increasing, and automobile exhaust pollution also becomes global problem day by day.Vehicle exhaust is one of them big factors of air-polluting.Especially endanger urban environment, cause respiratory disease, cause earth's surface air off gas too high levels, increase the weight of the serious consequences such as urban heat land effect, especially the haze weather that China recent years is day by day serious, these three of hydrocarbon, nitrogen oxide and carbon monoxide are haze chief components, and the major criminal in haze is exactly the tail gas that uses the automobile of various fuel oils to discharge, vehicle exhaust mainly comprise imperfect combustion fuel oil, carbon monoxide, hydrocarbon and nitrogen oxide.In order to improve urban air-quality, reduce tail gas pollution, European Union has worked out a series of strict motor vehicle exhaust emission European norm, from Europe superscript I to Europe superscript V and Europe superscript VI.For the emission standard of Europe superscript VI, a lot of countries and Automobile Enterprises all have objection, and the one, high demarcated standard is difficult to realize; The 2nd, cost of production is too high, and business and consumer is difficult to bear.China national Environmental Protection Administration has announced the motor vehicle exhaust emission Chinese Industrial Standards (CIS) that is equivalent to IIIHe Europe, Europe IV standard in 2007, the increase with society need that develops rapidly along with China's economic, the recoverable amount of automobile will increase substantially, vehicle exhaust will become the first pollution sources of big and medium-sized cities air-polluting, reduce as can be seen here the urgency of motor vehicle exhaust emission.Administer vehicle exhaust and mainly contain three approach: the first, the power of change automobile, as exploitation electric vehicle and substitute fuel automobile; The second, improve existing automotive powerplant and fuel oil quality; The 3rd, being applicable to of extensively adopting is at present to adopt the waste gas that outside some advanced machines, exhaust gas cleaner produces automobile to purify to reduce pollution at the purification technics that uses car and new car in a large number.This exhaust gas cleaner refers to the ternary catalyzing unit being arranged in automobile exhaust system, the harmful gases such as carbon monoxide, hydrocarbon and nitrogen oxide that it can be discharged vehicle exhaust change harmless carbon dioxide, water and nitrogen into by oxidation and reduction, because can mainly containing harmful substances by three kinds in waste gas simultaneously, this catalyst converter is converted into innoxious substance, therefore claim ternary.When the vehicle exhaust of high temperature passes through purification plant, purifying agent in ternary catalyzing unit will strengthen CO, the activity of HC and tri-kinds of gases of NOx, impel it to carry out certain oxidation-reduction chemical reaction, wherein CO is at high temperature oxidized into colourless, nontoxic carbon dioxide, HC compound is at high temperature oxidized to water (H20) and carbon dioxide, NOx is reduced into nitrogen and oxygen, three kinds of harmful gases become innocuous gas, vehicle exhaust is purified, yet, above-mentioned known exhaust gas cleaner can only be removed the toxic substance of part, only to reduce these effulents, especially limited to the purifying effect of carbon monoxide, importantly, the gaseous fuel that other are imperfect combustion and other effulents of failing catalysis can be attached to the surface of ternary catalyzing unit, cause catalytic converter purifying effect to reduce, and, during serious obstruction, in the time of not only can making catalytic converter work, produce a large amount of estimating one's own ability, the temperature of oxidation is also higher, when temperature surpasses 1000 ℃, its internally coated catalyzer is will sintering downright bad, cause three-way catalyst to be scrapped, when serious, also very easily there is vehicle incidents of spontaneous combustion.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, provides that a kind of toxic substance discharge amount is few, good purification, long service life and high automobile exhaust purifier and the purification method of Safety performance.
The technological scheme that a kind of automobile exhaust purifier of the present invention adopts is: the present invention includes outlet pipe and be successively set on from front to back high voltage electrostatic device, three-way catalytic apparatus, the elemental oxygen generating means in described outlet pipe and the high-voltage power being electrically connected to described high voltage electrostatic device and described elemental oxygen generating means respectively, on described outlet pipe, on the sidewall between described three-way catalytic apparatus and elemental oxygen generating means, be provided with admission line, the opening of described admission line is towards headstock direction.
Further, on described outlet pipe, the position corresponding with described high voltage electrostatic device is provided with and removes window and be rotationally connected for sealing the overturn cover of described removing window with described outlet pipe, and position corresponding with described removing window on described high-pressure resistant ceramic pipe and described conductive metal pipe is provided with through hole.
Further, described high voltage electrostatic device comprises high-pressure resistant ceramic pipe, be arranged on conductive metal pipe in described high-pressure resistant ceramic pipe, along described outlet pipe cross setting and at least one cross electrical hachure being positioned at least one air-flow path of described conductive metal pipe and being positioned at described air-flow path, described conductive metal pipe is electrically connected to the positive pole of the described high-voltage power of periphery, and described cross electrical hachure is connected with the negative electricity of described high-voltage power.
Further, described three-way catalytic apparatus comprises micropore ceramic tube and is sprayed on the metal catalyst layer in a plurality of catalyst chamber of described micropore ceramic tube.
Further, described three-way catalytic apparatus also comprises the insulation material layer being arranged between described micropore ceramic tube and described outlet pipe.
Further, described metal catalyst layer comprises metal platinum, rhodium, palladium.
Further, described elemental oxygen generating means comprises by two boards material setting up and down or that left and right arranges, on described two boards material, be respectively arranged with cathode metal tip and negative pole metal tip, the positive pole of the described high-voltage power that described cathode metal is most advanced and sophisticated with peripheral is electrically connected to, described negative pole metal tip is connected with the negative electricity of peripheral described high-voltage power, between relative described cathode metal tip and described negative pole metal tip under the effect of described high-voltage power discharge generation elemental oxygen.
Further, described automobile exhaust purifier also comprises and is arranged on the air inlet Taper Pipe that is positioned at described three-way catalytic apparatus front end in described outlet pipe and the air outlet taper pipe that is positioned at described three-way catalytic apparatus rear end.
Further, the voltage of described high-voltage power is 8000～40000 volts.
The technological scheme that the purification method of a kind of vehicle exhaust of the present invention adopts is: this purification method comprises the following steps:
(1) primary purification: remove the oil smoke in vehicle exhaust by high voltage electrostatic device;
(2) double purification: the vehicle exhaust after primary purification is carried out to three-element catalytic by three-way catalytic apparatus, remove the carbon monoxide of hydrocarbon, nitrogen oxide and part in vehicle exhaust;
Purify for (3) three times, the vehicle exhaust after double purification and the elemental oxygen providing by elemental oxygen generating means are carried out to chemical reaction and produce carbon dioxide.
The invention has the beneficial effects as follows: owing to the present invention includes outlet pipe and being successively set on from front to back the high voltage electrostatic device in described outlet pipe, three-way catalytic apparatus, elemental oxygen generating means and the high-voltage power being electrically connected to described high voltage electrostatic device and described elemental oxygen generating means respectively, on described outlet pipe, on the sidewall between described three-way catalytic apparatus and elemental oxygen generating means, be provided with admission line, the opening of described admission line is towards headstock direction, during use, described high voltage electrostatic device is removed imperfect combustion oil smoke in high-temperature tail gas, when carrying out first step purification, prevent that oil smoke is adsorbed onto in described three-way catalytic apparatus, affect normal use and the working life of described three-way catalytic apparatus, can avoid the vehicle incidents of spontaneous combustion that sintering of catalyst is downright bad and cause, described three-way catalytic apparatus is removed hydrocarbon under good environment, the carbon monoxide of nitrogen oxide and part, and provide acting on of fresh air at described admission line, described elemental oxygen generating means can be realized Arc Discharge and produce elemental oxygen, the carbon monoxide of described elemental oxygen and other parts carries out forming carbon dioxide after chemical reaction, by above-mentioned three aspects:, complete the purification work of vehicle exhaust, far be more than European Union's standard, so toxic substance discharge amount of the present invention is few, good purification, long service life and Safety performance are high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of high voltage electrostatic device of the present invention;
Fig. 3 is the structural representation of three-way catalytic apparatus of the present invention;
Fig. 4 is the structural representation of elemental oxygen generating means of the present invention.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, the present invention includes outlet pipe 1 and be successively set on from front to back the high voltage electrostatic device 2 in described outlet pipe 1, air inlet Taper Pipe 8, three-way catalytic apparatus 3, air outlet taper pipe 9, elemental oxygen generating means 4 and the high-voltage power 5 being electrically connected to described high voltage electrostatic device 2 and described elemental oxygen generating means 4 respectively, the voltage of described high-voltage power 5 is 8000～40000 volts, on described outlet pipe 1, on the sidewall between described three-way catalytic apparatus 3 and elemental oxygen generating means 4, be provided with admission line 6, the opening of described admission line 6 is towards headstock direction, described admission line 6 Main Functions are to provide the oxygen in fresh air for described elemental oxygen generating means 4, on described outlet pipe 1, the position corresponding with described high voltage electrostatic device 2 is provided with and removes window 7 and be rotationally connected for sealing the overturn cover 10 of described removing window 7 with described outlet pipe 1, position corresponding with described removing window 7 on described high-pressure resistant ceramic pipe 20 and described conductive metal pipe 23 is provided with through hole, the dust of the formation such as oil smoke of adsorbing by 7 pairs of described high voltage electrostatic devices 2 of described removing window is removed, wherein, described high voltage electrostatic device 2 comprises high-pressure resistant ceramic pipe 20, be arranged on the conductive metal pipe 23 in described high-pressure resistant ceramic pipe 20, along described outlet pipe 1 cross setting and at least one cross electrical hachure 22 being positioned at least one air-flow path 21 of described conductive metal pipe 23 and being positioned at described air-flow path 21, described cross electrical hachure 22 is positioned at the center of described conductive metal pipe 23, and itself and described outlet pipe 1 laterally be arranged in parallel, the interior two ends of described conductive metal pipe 23 can arrange support and fix described cross electrical hachure 22, described conductive metal pipe 23 is electrically connected to the positive pole of the described high-voltage power 5 of periphery, described cross electrical hachure 22 is connected with the negative electricity of described high-voltage power 5, described three-way catalytic apparatus 3 comprises micropore ceramic tube 30, be sprayed on the metal catalyst layer 32 in a plurality of catalyst chamber 33 of described micropore ceramic tube 30 and be arranged on the insulation material layer 31 between described micropore ceramic tube 30 and described outlet pipe 1, described insulation material layer 31 can effectively be avoided described outlet pipe 1 excess Temperature, and can coordinate with described air inlet Taper Pipe 8 and described air outlet taper pipe 9 temperature guaranteeing in described micropore ceramic tube 30 to reach 700 to 1000 ℃, to meet the temperature requirement of catalysis, described metal catalyst layer 32 comprises metal platinum, rhodium, three kinds of palladiums, mainly that the high-temperature tail gas through described catalyst chamber 33 is carried out to catalysis, described elemental oxygen generating means 4 comprises by two boards material 41 setting up and down or that left and right arranges, on described two boards material 41, be respectively arranged with cathode metal most advanced and sophisticated 42 and negative pole metal tip 43, described cathode metal most advanced and sophisticated 42 is electrically connected to the positive pole of the described high-voltage power 5 of periphery, described negative pole metal tip 43 is connected with the negative electricity of the described high-voltage power 5 of periphery, between relative described cathode metal most advanced and sophisticated 42 and described negative pole metal tip 43 under the effect of described high-voltage power 5 discharge generation elemental oxygen.
Working principle of the present invention is: during automobile starting, vent systems enters high-temperature tail gas in described outlet pipe 1, under the effect of described high-voltage power 5, between the electrical network that described conductive metal pipe 23 and described cross electrical hachure 22 form, form the high voltage direct current of 0.8 ten thousand volts～6.0 ten thousand volts, in the present embodiment, high voltage direct current is controlled to 0.8 ten thousand volts～4.0 ten thousand volts, described cross electrical hachure 32 also can be with high pressure negative electricity, like this, tip at described cross electrical hachure 22 produces corona phenomenon, thereby make through vehicle exhaust in oil smoke just can be with upper negative electricity, form charged oil smoke, thereby can be adsorbed on described conductive metal pipe 23 by described micropore 24, and other harmful matters in vehicle exhaust continue the direction motion to air outlet, after described air inlet Taper Pipe 8, enter in described micropore ceramic tube 30, described metal catalyst layer 32 tail gas with high temperature under carry out three-element catalytic, remove hydrocarbon, the carbon monoxide of nitrogen oxide and part, remaining part carbon monoxide continues motion backward, cathode metal most advanced and sophisticated 42 and described in several under effect of negative pole metal tip 43 Arc Discharges described in several, in air wherein, by moment, ionized, produce elemental oxygen, elemental oxygen has strong oxidizing property, thereby the carbon monoxide of process is oxidized, thereby realize the purification of vehicle exhaust.
The present invention can be widely used in automotive field.
Claims (10)
1. an automobile exhaust purifier, it is characterized in that: described automobile tail gas exhaust device comprises outlet pipe (1) and is successively set on from front to back the high voltage electrostatic device (2) in described outlet pipe (1), three-way catalytic apparatus (3), elemental oxygen generating means (4) and the high-voltage power (5) being electrically connected to described high voltage electrostatic device (2) and described elemental oxygen generating means (4) respectively, on described outlet pipe (1), be positioned on the sidewall between described three-way catalytic apparatus (3) and elemental oxygen generating means (4) and be provided with admission line (6), the opening of described admission line (6) is towards headstock direction.
2. automobile exhaust purifier according to claim 1, it is characterized in that: described high voltage electrostatic device (2) comprises high-pressure resistant ceramic pipe (20), be arranged on the conductive metal pipe (23) in described high-pressure resistant ceramic pipe (20), along described outlet pipe (1) cross setting and at least one cross electrical hachure (22) that be positioned at least one air-flow path (21) of described conductive metal pipe (23) and be positioned at described air-flow path (21), described conductive metal pipe (23) is electrically connected to the positive pole of the described high-voltage power (5) of periphery, described cross electrical hachure (22) is connected with the negative electricity of described high-voltage power (5).
3. automobile exhaust purifier according to claim 2, it is characterized in that: the upper position corresponding with described high voltage electrostatic device (2) of described outlet pipe (1) is provided with removes window (7) and is rotationally connected for sealing the overturn cover (10) of described removing window (7) with described outlet pipe (1), and the upper position corresponding with described removing window (7) of described high-pressure resistant ceramic pipe (20) and described conductive metal pipe (23) is provided with through hole.
4. automobile exhaust purifier according to claim 1, is characterized in that: described three-way catalytic apparatus (3) comprises micropore ceramic tube (30) and is sprayed on the interior metal catalyst layer (32) of a plurality of catalyst chamber (33) of described micropore ceramic tube (30).
5. automobile exhaust purifier according to claim 4, is characterized in that: described three-way catalytic apparatus (3) also comprises the insulation material layer (31) being arranged between described micropore ceramic tube (30) and described outlet pipe (1).
6. automobile exhaust purifier according to claim 4, is characterized in that: described metal catalyst layer (32) comprises metal platinum, rhodium, palladium.
7. automobile exhaust purifier according to claim 1, it is characterized in that: described elemental oxygen generating means (4) comprises by two boards material (41) setting up and down or that left and right arranges, on described two boards material (41), be respectively arranged with cathode metal tip (42) and negative pole metal tip (43), described cathode metal most advanced and sophisticated (42) is electrically connected to the positive pole of the described high-voltage power (5) of periphery, described negative pole metal tip (43) is connected with the negative electricity of the described high-voltage power (5) of periphery, between relative described cathode metal most advanced and sophisticated (42) and described negative pole metal tip (43) under the effect of described high-voltage power (5) discharge generation elemental oxygen.
8. automobile exhaust purifier according to claim 1, is characterized in that: described automobile exhaust purifier also comprises and is arranged on the air outlet taper pipe (9) that is positioned at the air inlet Taper Pipe (8) of described three-way catalytic apparatus (3) front end in described outlet pipe (1) and is positioned at described three-way catalytic apparatus (3) rear end.
9. automobile exhaust purifier according to claim 1, is characterized in that: the voltage of described high-voltage power (5) is 8000～40000 volts.
10. a purification method for vehicle exhaust, is characterized in that: this purification method comprises the following steps:
(1) primary purification: remove the oil smoke in vehicle exhaust by high voltage electrostatic device;
(2) double purification: the vehicle exhaust after primary purification is carried out to three-element catalytic by three-way catalytic apparatus, remove the carbon monoxide of hydrocarbon, nitrogen oxide and part in vehicle exhaust;
Purify for (3) three times, the vehicle exhaust after double purification and the elemental oxygen providing by elemental oxygen generating means (4) are carried out to chemical reaction and produce carbon dioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410137496.7A CN103953419A (en) | 2014-04-08 | 2014-04-08 | Device and method for purifying tail gas of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410137496.7A CN103953419A (en) | 2014-04-08 | 2014-04-08 | Device and method for purifying tail gas of automobile |
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| Publication Number | Publication Date |
|---|---|
| CN103953419A true CN103953419A (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410137496.7A Pending CN103953419A (en) | 2014-04-08 | 2014-04-08 | Device and method for purifying tail gas of automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080857A (en) * | 2019-05-22 | 2019-08-02 | 朱红 | A kind of vehicle exhaust dust-extraction unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2428576Y (en) * | 2000-07-05 | 2001-05-02 | 夏高鹏 | Electronic purifier for tail-gas of gasoline and diesel locomotive |
| CN2654875Y (en) * | 2003-11-10 | 2004-11-10 | 于向东 | Electronic smoke-filtering three-component catalytic converter for diesel engine |
| US20090193796A1 (en) * | 2008-02-05 | 2009-08-06 | Basf Catalysts Llc | Gasoline engine emissions treatment systems having particulate traps |
| CN102588050A (en) * | 2012-02-23 | 2012-07-18 | 庄建中 | Automobile exhaust purifier |
| CN203879580U (en) * | 2014-04-08 | 2014-10-15 | 伍劲刚 | Automobile tail gas purifier |
-
2014
- 2014-04-08 CN CN201410137496.7A patent/CN103953419A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2428576Y (en) * | 2000-07-05 | 2001-05-02 | 夏高鹏 | Electronic purifier for tail-gas of gasoline and diesel locomotive |
| CN2654875Y (en) * | 2003-11-10 | 2004-11-10 | 于向东 | Electronic smoke-filtering three-component catalytic converter for diesel engine |
| US20090193796A1 (en) * | 2008-02-05 | 2009-08-06 | Basf Catalysts Llc | Gasoline engine emissions treatment systems having particulate traps |
| CN102588050A (en) * | 2012-02-23 | 2012-07-18 | 庄建中 | Automobile exhaust purifier |
| CN203879580U (en) * | 2014-04-08 | 2014-10-15 | 伍劲刚 | Automobile tail gas purifier |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080857A (en) * | 2019-05-22 | 2019-08-02 | 朱红 | A kind of vehicle exhaust dust-extraction unit |
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Application publication date: 20140730 |
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