CN203879580U

CN203879580U - Automobile tail gas purifier

Info

Publication number: CN203879580U
Application number: CN201420165827.3U
Authority: CN
Inventors: 伍劲刚; 黄艳敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-08
Filing date: 2014-04-08
Publication date: 2014-10-15
Anticipated expiration: 2024-04-08

Abstract

The utility model discloses and provides an automobile tail gas purifier which is low in discharge of toxic substances, good in purifying effect, long in service life and high in safety performance. The automobile tail gas purifier comprises an exhaust pipe, a high-voltage static device, a ternary catalytic unit, an atomic oxygen generating device and a high-voltage power source, wherein the high-voltage static device, the ternary catalytic unit and the atomic oxygen generating device are arranged in the exhaust pipe from front to back in sequence, the high-voltage power source is electrically connected with the high-voltage static device and the atomic oxygen generating device, the side wall, located between the ternary catalytic unit and the atomic oxygen generating device, of the exhaust pipe is provided with an air inlet pipeline, and the opening of the air inlet pipeline faces a headstock. The automobile tail gas purifier can be widely applied to the automobile field.

Description

Automobile exhaust purifier

Technical field

The utility model relates to a kind of automobile exhaust purifier.

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 Europe III and Europe IV standard in 2007, along with developing rapidly and the increase of society need of 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 the 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.In the time that 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, but, 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, when serious obstruction, not only can make catalytic converter work time, produce a large amount of estimating one's own ability, the temperature of oxidation is also higher, in the time that temperature exceedes 1000 DEG C, its internally coated catalyzer will sintering necrosis, cause three-way catalyst to be scrapped, when serious, also very easily there is vehicle incidents of spontaneous combustion.

Model utility content

Technical problem to be solved in the utility model 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 the high automobile exhaust purifier of Safety performance.

The technological scheme that a kind of automobile exhaust purifier of the utility model adopts is: the utility model comprises outlet pipe and is 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 with 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 the overturn cover for sealing 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 be positioned at least one air-flow path of described conductive metal pipe and be positioned at least one cross electrical hachure of described air-flow path, described conductive metal pipe is electrically connected with 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 multiple 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, described cathode metal tip is electrically connected with the positive pole of the described high-voltage power of periphery, 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 beneficial effects of the utility model are: because the utility model comprises outlet pipe and is 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 with 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, when 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, complete the purification work of vehicle exhaust by above-mentioned three aspects:, far be more than European Union's standard, so the utility model toxic substance discharge amount is few, good purification, long service life and Safety performance are high.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of the utility model high voltage electrostatic device;

Fig. 3 is the structural representation of the utility model three-way catalytic apparatus;

Fig. 4 is the structural representation of the utility model elemental oxygen generating means.

Embodiment

As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, the utility model comprises outlet pipe 1 and is 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 with 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 the overturn cover for sealing 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 the oil smoke described high voltage electrostatic device 2 being adsorbed by described removing window 7 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 be positioned at least one air-flow path 21 of described conductive metal pipe 23 and be positioned at least one cross electrical hachure 22 of 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 with the positive pole of the described high-voltage power 6 of periphery, described cross electrical hachure 22 is connected with the negative electricity of described high-voltage power 6, described three-way catalytic apparatus 3 comprises micropore ceramic tube 30, be sprayed on the metal catalyst layer 32 in multiple 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 ensureing in described micropore ceramic tube 30 to reach 700 to 1000 DEG C, 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 with 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 utility model is: when 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 brought 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 bring 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, ionized by moment in air wherein, 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 utility model can be widely used in automotive field.

Claims

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 with 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 be positioned at least one air-flow path (21) of described conductive metal pipe (23) and be positioned at least one cross electrical hachure (22) of described air-flow path (21), described conductive metal pipe (23) is electrically connected with 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 the overturn cover (10) for sealing 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 multiple 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 tip (42) is electrically connected with 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 tip (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.