CN103233829A - Pollution treatment method and related device for finally discharged gas including automobile exhaust and the like - Google Patents

Abstract

Provided are a pollution treatment method and a related device for finally discharged gas including automobile exhaust and the like. The oxygen supply amount for an automobile engine or a combustion chamber is increased to enable combustion to be complete, a strong oxidant is added on an exhaust port of the engine or the combustion chamber, and pressurization and spaying are performed to decrease carbon monoxide discharge amount so as to achieve overall emission reduction. Then, high-temperature-resisting dustproof composite fiber with an absorption function is used for directly purifying the finally discharged gas by means of a dust removing method, a photocatalytic reaction method, a high voltage static dust removing method, a high-energy ion clarification method, a plasma catalysis method and other air purification treatment methods so as to achieve harmless emission. The pollution treatment method and the related device for the finally discharged gas including automobile exhaust and the like have good effect on quick reduction of air pollution caused by the finally discharged gas including the automobile exhaust and the like, and are small in economic load, easy to implement and worthy of further improvement, popularization and use.

Description

Vehicle exhausts etc. are pollution treatment method and the relevant apparatus of last exhausting air eventually

Technical field

" pollution treatment method and the relevant apparatus of end last exhausting air such as vehicle exhaust " invention proposes at pollution of atmosphere.It mainly administers the end last gas discharging that object is emission of automobile wastes, various coal and oil gas power plant, cement plant, coal and oil gas heating boiler, chemical plant, smelter etc.

Background technique

Along with expanding economy, the particularly further quickening of process of industrialization and urbanization process, the quantity rapid growth of automobile, power station, cement plant, heating boiler, chemical plant, smelter etc. increase greatly, the quantity of the solid that contains carbon, hydrogen of its use or liquid, gaseous fuel also increases fast, make that the carbon emission amount is multiplied in the atmosphere, the most direct harm except greenhouse effect and, be exactly serious pollution of atmosphere.China is in rapid economic development, industrialization, urbanization process propelled at high velocity phase, and the pollution of atmosphere situation has arrived alarming degree.In 10 big atmospheric pollution cities, the world, China has accounted for 7.According to Economic Information Daily message, portion " the National Environmental analysis of the continuable following People's Republic of China (PRC) of the environment of marching toward " Chinese edition report by name that on January 14th, 2013 was issued a transnational seminar of being sponsored to participate in officials such as National Development and Reform Committee, Chinese Ministry of Environmental Protection, the Department of Treasury, expert by the asian development bank, Tsing-Hua University etc. proposes, although Chinese Government is using finance and administration means control atmosphere pollution energetically always, but pollute among 10 the most serious cities in the world, still have 7 to be positioned at China.In 500 large and medium-sized cities of China, only reach World Health Organization's air quality standard less than 1%.The report expression of issue such as the asian development bank, all contaminants is from industry point source emission and automotive emission.On the one hand, most of sulfur dioxide (SO2) emissions are all from thermal power plant and nonmetallic minerals production, steel-making, chemical industry manufacturing and non-ferrous metal metallurgy enterprise.These industries account for more than 85% of the total discharging of sulfur dioxide, are much higher than them to the contribution rate of total industrial output value.On the other hand, owing to comprise multiple pollutant such as PM2.5, motor-vehicle tail-gas can cause serious atmospheric pollution.And in the past few years, quantity every year of civil aircraft motor-car, the private car annual growth reached 20% especially with 15% speed increment.

The expert claims, automobile pollution is the main cause that causes grey haze.Harmful gas mainly comprises carbon monoxide (CO), hydrocarbon (HC) and oxynitrides (NO) etc. in the motor vehicle exhaust emission thing.Carbon monoxide (CO) mainly is the product of incomplete combustion.Carbon monoxide (CO) is a kind of colourless, tasteless but the gas of violent toxicity is arranged.It is difficult for reacting with other materials and becoming constituent element more stable in the atmosphere, can stop 2～3 years.After people sucked too much CO, the hemoglobin in CO and the blood had stronger affinity than oxygen, can hinder the ability of the delivering oxygen of hemoglobin.When airborne carbonomonoxide concentration surpasses when a certain amount of, toxicity symptoms such as headache, vomiting will appear in the people, when concentration is big again, but even causing death.Carbon monoxide (CO) is the gas that motor car engine is discharged concentration maximum in the harmful components, and the public hazards that it causes are called the first public hazards of motor vehicle exhaust emission; The generation of hydrocarbon HC is still that combustion process not exclusively causes.HC is a kind of mixture, and composition is very complicated.When HC concentration is higher, can make that dizziness appears in the people, toxicity symptom such as feel sick.Particularly the alkene in the HC compound is in the atmosphere sky, and nitrogen dioxide (NO2) mixes, behind strong solar radiation, play photochemical reaction and produce smoke-like materials such as high-concentrated ozone, aldehyde, eyes, respiratory apparatus (mucous membranes such as larynx, eye, nose) and skin there are strong impulse, may be carcinogenic.And it also makes ecotope be destroyed, and has a strong impact on the growth of crops, makes the agriculture underproduction, thus hydrocarbon (HC) it become second public hazards of motor vehicle exhaust emission; Oxynitrides NOx is the general name of NO and NO2, and it is motor when big load operation, and small amount of nitrogen is oxidized to nitrogen oxide such as NO, NO2 in the high-temperature high-pressure fuel gas.Wherein the binding ability of the hemoglobin in NO and the blood is also stronger than CO, people is poisoned and dead.NO2 be a kind of brown have strong toxicity gas, stimulate people's eyes and respiratory tract to cause to pant, bronchitis and pulmonary emphysema etc., NOx also is the constituent of photochemical smog simultaneously, becomes the 3rd public hazards of motor vehicle exhaust emission.

Except above-mentioned three kinds of major pollutants, automobile exhaust pollution also has materials such as SO2, free carbon (black smoke), tetraethyllead, stink, and they are all very harmful to human respiratory, the circulatory system, nervous system.Thick weather is serious to the harm of human body, and thick weather refers to that particles such as dust in air, sulfuric acid, nitric acid, organic carbon hydrogen compound make the atmosphere muddiness, and the visual field is fuzzy and cause visibility to worsen.Because discharge of automobile exhaust fumes is mainly between 0.3 meter to 2 meters, it just in time is the respiration range of human body, Health cost to human body is very serious---stimulate respiratory tract, make the immunity degradation of respiratory system, cause a series of symptoms of degradation under exposed population group's chronic bronchitis, bronchitis and the rising of the dyspneic incidence of disease, the PFT.Contained strong carcinogen---benzene class material in the tail gas can be lung cancer caused, thyroid cancer etc.

Vehicle exhaust not only produces harm to the people, and to plant also toxic effect, the secondary pollution ozone in the tail gas, peroxide ethoxycarbonyl nitric acid fat can make plant leaf blade downright bad scab and withered spot occur, and ethene can influence yielding positive results of plant.The crop production reduction that studies have shown that both sides of highway is obviously relevant with the pollution of vehicle exhaust.

From Beijing to Tianjin, from Hebei to Shandong, from Henan to Guangxi, the large-scale haze weather of China is influencing people's life.According to Xinhua News Agency before this, on Beijing-Hongkong Australia expressway Changsha-highway section, Xiang Tan, in 9 hours of 8 of mornings on January 13rd, 2013 at 5 in afternoon, recur more than 40 traffic accident; In the city various big hospitals such as Beijing, Jinan, Shijiazhuang, Nanning, the numbers of seeing and treating patients such as Respiratory Medicine, anaphylactogen test section have risen violently 7 to 8 times in only a few days.

Member of Chinese Academy of Engineering, the chief Zhong Nanshan of Guangzhou Inst. of Respiratory Diseases represented that once present China lung cancer illness rate is 4 times more than in the period of the past 30, is that thick weather causes.The constituent of haze is very complicated, comprises hundreds of Atmospheric particulates.Wherein harm humans health mainly is diameter less than 10 microns particulate, and it can directly enter and stick on the human body in the lower respiratory tract and the lobe of the lung, causes illnesss such as rhinitis, bronchitis, is in this environment for a long time and also can brings out lung cancer.Except cancer, the haze sky still is the heart killer.There are some researches show that when pollutant increased the weight of in the air, the death-rate of cardiovascular patient can increase.Particulate pollutant in the haze sky not only can cause myocardial infarction, also can cause myocardial ischemia or damage.

The pollution of vehicle exhaust also had painful memory in countries in the world.After the Los Angeles,U.S city has at first found to be subjected in atmosphere environment by HC and NOx strong solar ultraviolet irradiation, produce a kind of photochemical reaction of complexity the forties in 20 century, generates new pollutant formation photochemical smog.Every autumn and winter season, many people's eyes are slightly red and swollen, throat pain, even the flush of varying degree, maculo-papular rash etc. appear in somebody's skin; People also regular meeting produce expiratory dyspnea and tired sensation.In September nineteen fifty-five, serious vehicle exhaust adds that temperature is higher, and photochemical smog has appearred in Los Angeles again, and concentration is very high, and photochemical smog has not only influenced people's respiratory tract function, particularly damages children's PFT; Cause pectoralgia, symptom such as nauseating, tired, caused several thousand people to be injured, more than 400 old man's death of 65 years old was just arranged within two days, be grown in the vegetables in suburb all by green browning, nobody dares to eat; Fruit and crop production reduction, the jaundice of large quantities of trees fallen leaves, several ten thousand hectares forest has more than 1/4th withered and dead.After nineteen forty-three, the earliest photochemical smog event took place in the world in Los Angeles, in the North America, Japan, Australia and European some areas also priority this smog has appearred.In the photochemical smog that December nineteen fifty-two, London took place 4 days death toll throughout the year the same period approximately more 4000 people, at most dead more than 45 years old is about at ordinary times 3 times, is about at ordinary times 2 times below 1 years old.In the week that event takes place, be respectively 9.3 times, 2.4 times, 5.5 times and 2.8 times of event similar death toll the last week because of bronchitis, coronary heart disease, pulmonary tuberculosis and the person's of having a weak heart death.

In sum: the pollution that vehicle exhaust is discharged, caused serious harm to health.Have data to show, each large-and-medium size cities motor vehicle exhaust emission thing of China causes atmospheric pollution to account for about 50%.This shows, arrived instant stage for the improvement based on the atmospheric pollution sources of motor vehicle exhaust emission thing.

Reduce the prior art of automobile exhaust pollution:

The motor vehicle emission source is mainly from three aspects: exhaust emissions, fuel evaporation discharging and fuel tank ventilate.The relative first aspect of effulent that two aspects, back cause is much smaller, and back two aspect carbon monoxide, nitrogen oxide are the 1%-2% of total release usually, and hydrocarbon is about 20%.Therefore, the tail gas that mainly produces from engine combustion of motor vehicle emission.The technology that adopts for the minimizing auto-pollution mainly contains the following aspects at present:

1. using instead of vehicle fuel:

(1) adopts unleaded gas, to replace Leaded gasoline, can reduce the discharge amount of gasoline toxic exhaust material.

(2) blast blending changes propellant composition: adopt " methanol fuel ", namely adopt the roughly the same made fuel of gasoline mixing of methyl alcohol and other alcohol.Can both reduce or eliminate the pollution effects of CO, HC, NOx and lead dust to a certain extent.

(3) select appropriate lubricating additive-mechanical friction improving agent for use: in machine oil, add solid additives such as a certain amount of (ratio is 3%-5%) graphite, molybdenum disulfide, polytetrafluorethylepowder powder, join in the sump of engine, can save engine fuel about 5%.In addition, adopt above-mentioned solid lubricant that motor car engine cylinder sealability is improved greatly, cylinder pressure increases, and burning fully.In the exhaust emissions, CO and hydrocarbon content descend thereupon, can alleviate the pollution to atmosphere environment.

(4) adopt green fuel can reduce vehicle exhaust toxic gas discharge amount equally: the Ohio research institute according to the U.S. uses " soybean diesel oil ", is incorporated in the ordinary diesel oil with 3: 7 ratios, can be for the usefulness of diesel car.The sulphide that discharges when it can significantly reduce engine operation, hydrocarbon, carbon monoxide and flue dust.

(5) adopt pluralities of fuel to originate as automotive fuel: along with the extensive use of science and technology development and computer; guarantee enforcement and the conservation measures of legislations of environmental protection, can be extensive use of the storage battery etc. of natural-gas, solar energy and the ecological fuel of new prescription gasoline, electric power, compression in the automobile.

(6) energy saving, favorable environment is widelyd popularize vehicle-use alcohol gasoline: point out according to the relevant expert; exploitation ethanol gasoline replacing, namely energy saving can digest grain in storage for years again; harmful gas that automobile is discharged reduces, and is a new problem that is conducive to protect environment and resource.

2. the debugging of motor car engine inside can reduce the discharge amount of exhaust pollutant.

(1) reduces injection advance angle.Can reduce the maximum temperature (1500 degrees centigrade) of engine operation, the growing amount of NOx is reduced.

(2) improve the quality of oil sprayer, can make fuel combustion complete, thereby can reduce CO, HC and coal smoke.

(3) adjust the fuel delivery of Injection Pump, can reduce the power of motor, make the fuel of atomizing have enough oxygen to carry out perfect combustion, thereby also can reduce the generation of CO, CH and coal smoke.

3. engine interior purified treatment measure

(1) design of positive crank case vent system: the gas of scurrying into crankcase from cylinder (mainly being unburned gas) recirculation is entered intake manifold, it is burnt again, changed the past it is directly entered the pollution that atmosphere causes.

(2) exhaust gas recirculatioon design: engine exhaust port is connected with intake manifold with control valve, makes the gas of discharge through circulation again, to reduce the discharge amount of nitrogen oxide.

(3) Design of Evaporative Emission Control System: the evaporation of the gasoline in carburetor bowl vapour is introduced gas handling system, and the evaporation vapour in the fuel tank is introduced stocking system, can significantly reduce the discharging of pollutant.

4. external engine tail gas clean-up measure

Adopt catalyzer: CO is oxidized to CO2, and HC is oxidized to CO2 and H2O, and NOx is reduced into to N2 etc.The catalyzer that adopts has manganese oxide, copper monoxide; Chromium oxide, nickel monoxide, metallic oxide and white metal precious metals such as (platinum) such as copper monoxide.They can purify CO, HC.Catalytic reactor is arranged in the vent systems between the gas exhaust manifold and baffler.

5. strengthen administrative management, minimizing and elimination vehicle exhaust are to the pollution of atmosphere environment

(1) eliminates used car, take to scrap and see the New Year in.Exploitation is also adopted the new automobile of pluralities of fuel, and this is the developing direction of automobile from now on.(2) strict national quality technology standard, the control standard of fuel carried out.

The above various measures of adopting still fail to obtain very fast progress at present, such as the development of new automobile and fuel with use and also need considerable time and a large amount of the input; Raising now also needs the improvement of equipment, technology and the price of increase fuel oil with the standard of fuel oil; A large amount of used cars of eliminating use new car or on existing basis the motor car engine improvement are reduced the tail gas pollution discharging significantly all to be difficult to realize etc. at short notice.

Summary of the invention

The inventor exist fuel combustion to cause not exclusively that pollutant produce to increase at vehicle itself and eventually in the discharging of end pollutant to fail to intercept be the main source of automobile exhaust pollution, the processing method polluted for whole last exhausting air has been proposed: be that air-intake of combustion engine mouth at automobile adds with part or all of oxygen and makes fuel combustion complete, reduce the generation of pollutant and after the fuel combustion work done, spray into strong oxidizer the amounts of residual contamination do oxidation is reached the pollutant emission of whole reduction motor; Increase tail gas purifier more simultaneously behind catalytic reactor or baffler, flue dust (particularly PM2.5 material) and toxic gas that remaining whole end is discharged in the atmosphere discharge through reaching harmless substantially degree after the processing of this purification plant again.This will rapidly and effectively reduce the pollution of vehicle exhaust greatly, select to comprise that more permanent and economic solutions such as oil quality promotes, use non-polluting energy sources gain time for us.Particular content of the present invention is:

1, the pollution treatment device of vehicle exhaust is automobile exhaust purifier: purifier and warning circuit three parts are formed again to reduce disposal of pollutants part, tail gas by internal-combustion engine.

A, internal-combustion engine reduce the disposal of pollutants part:

The oxygen supply pipe is set up at intake air filter rear at internal-combustion engine, links to each other with the liquid oxygen jar that is positioned over the automobile boot.Oxygen supply pipe at the air-intake of combustion engine mouth arranges one-way cock, according to the test result of different automobile types, suitable oxygen supply ratio is provided, the fuel that enters the firing chamber can be burnt fully as far as possible, to significantly reduce the generation of CO, HC, NOx etc., also prevent tempering; Increase a strong oxidizer supplying tube on firing chamber spray bar side or at the exhaust opening of engine position, by computer control, after firing chamber fuel combustion outburst work done, reverse atomizing sprays into to the firing chamber or at the exhaust opening of engine position with compression pump with the canned strong oxidizer (as H2O2,1/3000-1/5000 liquor potassic permanganate etc.) that is arranged at headstock, under the situation of high temperature, high pressure, be conducive to the oxidation of materials such as residual CO, NOx, reduced the pollutant emission of motor on the whole.

For ensuring safety, increase oxygen safety control circuit and the electronics valve of a belt sensor (or sensor signal of introducing anti-collision air bag) at the reduction valve position of liquid oxygen jar control liquid oxygen, generation collision etc. is seriously clashed into or the electronics valve that cuts off the power supply is suddenly closed automatically, avoids oxygen leakage.The supply of oxygen and the startup of motor car engine, close synchronously; For ensureing the usefulness that adds of oxygen, add the oxygen gas mixture part at the air-intake of combustion engine mouth simultaneously, 1-2 piece of device oxygen concentration sensor, the liquid oxygen pressure signal of reduction valve and air-intake of combustion engine mouth oxygen concentration signal are introduced engine computer.Run low as oxygen, when oxygen concentration dropped to a certain degree in liquid oxygen pressure data or the suction port mixed gas, the oxygen index gauge on the instrument panel was reported to the police, and the prompting driver adds oxygen.As not doing interpolation, when oxygen concentration drops to critical value in oxygen pressure or the mixed gas, computer will be controlled motor and can not start.Must add oxygen and improve oxygen concentration in oxygen pressure or the mixed gas, motor could recover to start.

B, tail gas is purifier again:

Behind catalytic reactor or baffler, increase tail gas purifier again, be equivalent to increase an air cleaning unit that generally uses now.Partly formed by physical cleaning, electron chemistry purification etc.Physical cleaning partly is arranged at front end and the rear-most end of exhaust purifier, and modules such as apportion is dustproof, absorption can be extracted out in the horizontal direction, are convenient to cleaning or replacing; Electron chemistry purifies part and uses automobile power source, be arranged at the tail gas middle-end of purifier again, according to the automotive fuel type, select 2-3 in the purification styles such as suitable photocatalyst reaction, high-pressure electrostatic precipitation, energetic ion purification, plasma catalytic, control system partly is arranged at headstock or boot, purifies part and makes module, place the tail gas middle-end of purifier again, can extract out in the horizontal direction, easy access and replacing, itself and engine start are synchronous; This purifier purifies material and various micronic dusts such as SO2, tetraethyllead, stink simultaneously to oxidation, the catalyst action that reduced of HC, Nox, ozone etc., eliminates the discharging of micropollutants such as PM2.5 especially.

C, warning circuit:

Be vehicle exhaust again the near-end of purifier be provided with 1-2 pressure transducer, when the automobile exhaust pipe internal pressure reaches certain numerical value, when influencing exhaust emissions and engine power, pressure sensor circuit is reported to the police, show that at instrument panel prompting driver cleaning vehicle tail gas is purifier again;

The pollution treatment device of this vehicle exhaust can be listed in the standard design of automobile in the new car design;

For used car, implement this programme and can adopt motor reduction of discharging transformation to add the simple and easy tail gas method of purifier again: install the reduction of discharging that oxygen supply pipeline and strong oxidizer supplying tube system can realize internal-combustion engine additional; Simple and easy tail gas purifier again is the flask shape multilayer purifier that can be fixed in the band warning circuit that a constant volume is arranged of automobile exhaust pipe mouth.

Interior first layer is the elastic web support, made by high temperature resistant composite and/or metallic material, tool compression and elastic recoil function, this position arranges pressure transducer 1-2, when stopping up ventilating performance, the outer contaminated thing of purifier drops to a certain degree, space pressure increases when influencing exhaust emissions in the purifier, and the tutorial light that is connected with pressure transducer is reported to the police, and the prompting driver carries out cleaning to purifier;

The second layer is the dustproof layer of cloth of high temperature resistant composite fiber, is made of the discharging of the micropollutants such as micronic dust, particularly PM2.5 in the control tail gas glass fiber cloth, active carbon fiber fabrics etc.

The 3rd layer is electron chemistry purified treatment layers such as high-pressure electrostatic precipitation, energetic ion purification, plasma catalytic, by layer 2-3 fine and closely woven contain oxidation to HC, NOx, the metal grill of catalyst action of having reduced forms, its nearly outlet pipe oral area, socket is arranged and be arranged at boot, makers such as the high pressure electrostatic generator of use automobile power source, plasma are connected with control system, chemical contaminants such as HC, the NOx in the processing tail gas, ozone.

The 4th layer is high-temperature insulation composite fiber dustcloth, prevents that accident from touching the high-pressure metal grid, increases the time of contact of tail gas and air purification processing layer, also can intercept remaining a small amount of micronic dust.

But except first layer elastic mesh support extended immobilization, all the other each layers can be combined in advance, adopt the pressure elasticity net grid support, and the means of fixation of being inserted in whipping or snap-lock is installed combination layer, change when being convenient to periodic cleaning or inefficacy.This simple and easy exhaust purifier is made different configuration designs according to different automobile types: single tracheae, that twin exhaust pipes is arranged side by side, twin exhaust pipes apportion several.

This programme is applicable to that to the processing method of vehicle exhaust all application with internal combustion engines are as the tail gas pollution of the Motor Vehicle of power.

2, the end last gas exhaust emission treatment device principle of various coal and oil gas power plant, cement plant, coal and oil gas heating boiler, chemical plant, smelter etc. is identical with automobile exhaust purifier, be whole last exhausting air purifier, formed by firing chamber minimizing disposal of pollutants part, whole last gas purifier, warning circuit three parts.

The disposal of pollutants part is reduced in A, firing chamber:

Oxygen blast mouth with the band one-way valve of liquid oxygen through being installed on firing chamber proximal side or end face is blown into oxygen, makes the perfect combustion of trying one's best of fuel in the firing chamber, reduces the generation of pollutant; The mode that strong oxidizer in the storage box (H2O2,1/3000-1/5000 potassium permanganate liquid etc.) is adopted reverse spray with compression pump in firing chamber tail end and outlet pipe junction is that the residual contaminants of representative is combined and is made it innoxious with the strong oxidizer of atomizing with CO in the exhausting air of firing chamber.

B, whole last gas purifier:

Be arranged at the terminal portion branch of the horizontal prolongation of exhaust emission pipe, the simple dust guard that alternative present most of enterprises use partly is made up of physical cleaning, electron chemistry purification etc.Physical cleaning partly is arranged at front end and the rear-most end of last gas purifier eventually, and modules such as apportion is dustproof, absorption can be extracted out in the horizontal direction, are convenient to cleaning or replacing; Electron chemistry purifies part and uses industrial power, be arranged at the middle-end of last gas purifier eventually, the based on fuel type, select 2-3 in the purification styles such as suitable high-pressure electrostatic precipitation, energetic ion purification, plasma catalytic, control system partly is arranged at the firing chamber operating console, purifies part and makes module, can extract out in the horizontal direction, easy access and replacing, itself and startup combustor are synchronous; At dustproof module near-end, can increase cleaning mode dedustings such as mechanical type strikes off, reverse high pressure washing, reduce the number of times of safeguarding, changing dustproof module.Through the processing of last gas purifier eventually, will significantly reduce the discharging of sulphide, micropollutants such as hydrocarbon, particularly PM2.5.

C, warning circuit:

Near-end at whole last gas purifier arranges 1-2 pressure transducer, when the outlet pipe internal pressure reaches certain numerical value, when influence discharging and combustion chamber power, the pressure sensor circuit warning, show that at operating console prompting operation person's cleaning or replacing be the dustproof module of last gas purifier eventually.

Adopt good benefit of the present invention:

Use this method gas furnacing factory to be set the place easily in power supply, obtain liquid oxygen in liquefied air, other gases also can integrated application.Oxygen use has in the present invention improved burning usefulness and the power of motor or the power of firing chamber of fuel, in fact plays a part transformation of energy, reduces and pollute.Though wherein have the loss of energy, due to economic loss little.Car owner and enterprise reduce rapidly the atmospheric pollution of automobile exhaust pollution and discharging enterprise under the little situation of economic burden, make the harmful gas in the last exhausting air eventually innoxious, various micronic dusts, comprise that the discharging of PM2.5 significantly reduces.The input of government seldom, and whole society and economic benefit are significant.

For the automobile owner, spend hundreds of unit (can further descend with output increase expense) first the automobile that is using is carried out simple refit, and simple and easy tail gas is installed again behind the purifier, the discharging of tail gas will reach the standard of state IV, the fuel consumption of motor car engine reduces, power has lifting, major part is offset the cost that increases liquid oxygen; A lot of yellow mark cars also will increase the service life greatly, and the car owner is weighed, and economic benefit is tangible.In long-term use, take automobile-used little oxygen cylinder suitably to replenish liquid oxygen apart from increasing liquid oxygen inflation or substitute mode in gas station's outlet; Tail gas again purifier and simple and easy tail gas again each layer of purifier be detachable, cleaning and reusable, wherein physical cleaning module or composite fibre layer are shorter working life, but replacement cost is very low.Be the guarantee environment air quality, suitably the economic burden that increases is necessary, is also objectively controlling the unreasonable growth of automobile quantity.

Unique difficulty that this programme is promoted is used the same just like all environmental practices, can not lean on the conscious installation of autoist, must issue mandatory provisions by responsible departments of the government carries out, principle according to whose pollution, whose improvement, to the vehicle refitting of oneself with tail gas purifier again is installed, reaching the use that to permit this car under the situation of exhaust emission standard by autoist; The strict mobile detection of carrying out exhaust emissions in case exceed standard, gives heavy punishment at ordinary times.Reduce the pollution of atmosphere like this and be right and proper to the harm of health of masses.In the area of this measure of carrying out, will be controlled rapidly by the pollution of atmosphere that vehicle exhaust causes.

The end last gas emission treatment of large-scale blowdown enterprise, use behind the present invention since burning fully, use amount and the carbon emission of fuel have decline, the economic burden of enterprise is little, social benefit is obvious, plays good action for the lifting of environmental quality.

Description of drawings

Fig. 1: automobile exhaust purifier overall structure figure

Fig. 2: automobile exhaust purifier fractal structure figure

Fig. 3: the simple and easy tail gas of automobile is the purifier hierarchy again

Among the figure: 1, internal-combustion engine reduces the disposal of pollutants part; 1 (1), air-intake of combustion engine mouth oxygenation system; 1 (2), internal combustion engine air vent strong oxidizer spray system; 2, tail gas is purifier again; 3, warning circuit; 4, intake lines of combustion engines; 5, internal-combustion engine; 6, internal-combustion engine vent-pipe; 7, the automotive exhaust catalysis reactor; 8, baffler; 9, exhaust pipe; 10 whole last outlet pipes; 11, oxygen reduction valve, electronic valve; 12, the suction tude oxygen concentration sensor; 13, anti-collision sensor and oxygen safety control circuit; 14, air-intake of combustion engine mouth oxygen catheter; 15, the strong oxidizer compression pump; 16, the strong oxidizer delivery pipe; 17, the reverse shower nozzle of strong oxidizer; 18, tail gas is purifier physical cleaning module again; 19, tail gas is purifier electron chemistry cleaning module again; 20, the warning circuit control section; 21, the warning circuit warning light; 22, the warning circuit pressure transducer; 23, simple and easy tail gas reprocessor internal layer complex fire resistant support; 24, simple and easy tail gas reprocessor internal layer alarm sensor; 25, simple and easy tail gas reprocessor second layer complex fire resistant fiber is dustproof, dust suction cloth; 26, simple and easy tail gas reprocessor the 3rd layer multi-layer metal electron chemical cleaning method grid; 27, the 4th layer of insulated compound high-temperature resistant fiber dustcloth of simple and easy tail gas reprocessor; 28, simple and easy tail gas reprocessor cleaning system terminal;

Embodiment

The inventor is applied to the compact car of a Guangdong B05C76MZDA6WAGN2.3 discharge capacity with above Design Mode, and this car comes into operation in October, 2007.The method of test is:

1, increases oxygen hose at admission line air filter rear, can control input oxygen.Above same automobile used in the chosen in advance test section, is responsible for oiling by same oiling person on the oilling machine on the same stage of same driver, same gas station.At first fill it up with oil, under the normal state of oxygen not, the above selected highway section of travelling (for city expressway and expressway amount to 81km) service time is 1 hour 33 minutes, 5.59 liters of cumulative fuel consumptions; Same quadrat method, engine intake adds the same highway section of travelling under the situation with 5 liters/min oxygen flow always in test, and also be 1 hour 33 minutes (guarantee that travelling speed is close, the oil consumption pattern is close) service time, 5.25 liters of cumulative fuel consumptions.Oil consumption descends and to reach nearly 6%, and the adding of prompting oxygen has improved the fuel combustion of motor, has improved the power of motor, obvious minimizing the discharge amount of burning entirely not.

2, behind the vehicle exhaust input strong oxidant solution, play obvious chemical change, pointed out this strong oxidizer can reduce pollutant in the tail gas.

3, the exhausting air of automobile tail gas pipe is introduced the indoor air purifier (CTA00186 type) of inventor partner exploitation, again purified gas is detected contrast according to the mode of automobile conventional sense: the whole discharge amount of all contaminations has significantly and reduces.

The inventor is carrying out further accurately experimental test: comprise the selection of best oxygen concentration, oxygenation rear engine power ascension and the reacted resultant of situation of change, tail gas and strong oxidizer of motor vehicle exhaust emission, the microminiaturization transformation of conventional air cleaner etc., in case data are finished, will in time be replenished.

More than thick test approximately, the inventive method that has been unequivocally established is having good result aspect the pollutant that reduces motor vehicle exhaust emission, and carries out fairly simplely, is worth further improving and progressively applying.

Claims (5)

1. the pollution treatment method of last exhausting air eventually such as a vehicle exhaust is to adopt to increase oxygen in the firing chamber and supply with, and makes burning fully, increases strong oxidizer pressurization spray at exhaust outlet of combustion chamber and reduces the carbon monoxide discharge capacity and realize whole the reduction of discharging; The air purification processing methods such as composite fiber dedusting, photocatalyst reaction, high-pressure electrostatic precipitation, energetic ion purifications, plasma catalytic of selecting high temperature resistant dustproof and band adsorption function again for use directly to end last exhausting air purify and realize innoxious discharging.

2. the pollution treatment method of last exhausting air eventually such as vehicle exhaust as claimed in claim 1 is handled for vehicle exhaust, is that the car combustion engine suction port is increased the oxygen supplying pipe, and internal combustion engine air vent increases pressurization spray strong oxidizer; Outlet pipe before or after the mobile muffler transform the tail gas that has multiple air-cleaning function, can extract module out the purifier again that enlarges caliber as; Tail gas pipeline the place ahead of purifier again is provided with warning circuit, when the discharge of pipes increased pressure when influencing engine power, the warning light on the instrument panel is glittering, prompting cleaning tail gas is purifier again.

3. purifying vehicle exhaust method as claimed in claim 2 is applicable to that all are the motor vehicle of power with the internal-combustion engine, and for new car production, this exhaust purifying method can be used as the automobile conventional design and enters in the global design; For used car, can be when motor reduce discharging to be transformed, with tail gas again purifier be reduced to and increase flask shape vehicle exhaust purifier and realizing again in the whole end of outlet pipe.

4. the pollution treatment method of last exhausting air eventually such as vehicle exhaust as claimed in claim 1, the method that the end last gas exhaust emission of the power station that acts as a fuel for other fuel oil coal burning and gas burning, cement plant, heating boiler, chemical plant, smelter etc. is handled is close with the processing method of vehicle exhaust, near-end and middle part in the firing chamber increase oxygen lance, and the terminal relief opening in firing chamber increases pressurization spray strong oxidizer; The outlet pipe that prolongs in level is provided with multiple air-cleaning function, can extracts the end last gas purifier of module out; Its place ahead arranges warning circuit equally.

5. the implement device of the pollution treatment method of last exhausting air eventually such as vehicle exhaust as claimed in claim 1:

1), the pollution treatment device of vehicle exhaust is automobile exhaust purifier, by internal-combustion engine reduce disposal of pollutants part, tail gas again purifier and warning circuit three parts form:

A, internal-combustion engine reduce the disposal of pollutants part:

Set up the oxygen supply pipe of band one-way cock at the intake air filter rear of internal-combustion engine, link to each other with the liquid oxygen jar that is positioned over the automobile boot; Other or exhaust opening of engine position increases a strong oxidizer supplying tube at the firing chamber spray bar, and by computer control, reverse atomizing sprays into to the firing chamber or at the exhaust opening of engine position with compression pump with the canned strong oxidizer that is arranged at headstock; The reduction valve position of liquid oxygen jar control liquid oxygen increases control circuit and the electronics valve of a belt sensor, and seriously bump or the electronics valve that cuts off the power supply are suddenly closed automatically, the supply of oxygen and the startup of motor car engine, close synchronous; The air-intake of combustion engine mouth adds the oxygen gas mixture part, 1-2 piece of device oxygen concentration sensor, and the liquid oxygen pressure signal of reduction valve and air-intake of combustion engine mouth oxygen concentration signal are introduced engine computer; When oxygen concentration dropped to a certain degree in liquid oxygen pressure or the suction port mixed gas, the oxygen index gauge on the instrument panel was reported to the police; When oxygen concentration drops to critical value in oxygen pressure or the mixed gas, computer will be controlled motor and can not start; Improve oxygen concentration in oxygen pressure or the mixed gas, motor could recover to start;

B, tail gas is purifier again:

Behind catalytic reactor or baffler, increase tail gas purifier again, partly formed by physical cleaning, electron chemistry purification etc.; Physical cleaning partly is arranged at front end and the rear-most end of exhaust purifier, and modules such as apportion is dustproof, absorption can be extracted out in the horizontal direction; Electron chemistry purifies part and uses automobile power source, be arranged at the tail gas middle-end of purifier again, according to the automotive fuel type, select 2-3 in the purification styles such as suitable photocatalyst reaction, high-pressure electrostatic precipitation, energetic ion purification, plasma catalytic, control system partly is arranged at headstock or boot, purifies part and makes module, places the tail gas middle-end of purifier again, can extract out in the horizontal direction, itself and engine start are synchronous;

C, warning circuit:

The vehicle exhaust near-end of purifier again is provided with 1-2 pressure transducer, when the automobile exhaust pipe internal pressure reaches certain numerical value, when influencing exhaust emissions and engine power, pressure sensor circuit is reported to the police, show that at instrument panel prompting cleaning vehicle tail gas is purifier again;

The tail gas that is applicable to used car purifier again is the flask shape vehicle exhaust that can be fixed in automobile exhaust pipe mouth band warning circuit purifier again:

Innermost layer is network, made by high temperature resistant composite and/or metallic material, tool compression and elastic recoil function, this position arranges one to two piece of pressure transducer, space pressure increases when influencing exhaust emissions in the purifier, the tutorial light that is connected with pressure transducer is reported to the police, and prompting is carried out cleaning to purifier;

The second layer is the dustproof layer of cloth of high temperature resistant composite fiber, is made up of glass fiber cloth, active carbon fiber fabrics etc.;

The 3rd layer is electron chemistry purified treatment layers such as high-pressure electrostatic precipitation, energetic ion purification, plasma catalytic, by layer 2-3 fine and closely woven contain oxidation to HC, NOx, the metal grill of catalyst action of having reduced forms, its nearly outlet pipe oral area, socket is arranged and be arranged at boot, makers such as the high pressure electrostatic generator of use automobile power source, plasma are connected with control system;

The 4th layer is high-temperature insulation composite fiber dustcloth,

But except first layer net grid support extended immobilization, all the other each layers can be combined in advance, adopt the pressure elasticity support, and the means of fixation of being inserted in whipping or snap-lock is installed; This exhaust purifier is made different configuration designs according to different automobile types: single tracheae, that twin exhaust pipes is arranged side by side, twin exhaust pipes apportion several;

2), the end last gas exhaust emission treatment device principle of various coal and oil gas power plant, cement plant, heating boiler, chemical plant, smelter etc. is identical with automobile exhaust purifier, be whole last exhausting air purifier, formed by firing chamber minimizing disposal of pollutants part, whole last gas purifier, warning circuit three parts:

The disposal of pollutants part is reduced in A, firing chamber:

The oxygen lance of the band one-way valve of liquid oxygen through being installed on firing chamber proximal side or end face is blown into the firing chamber, in firing chamber tail end and outlet pipe junction with compression pump with the reverse spray of the strong oxidizer in the storage box;

B, whole last gas purifier:

Be arranged at the terminal portion branch of the horizontal prolongation of exhaust emission pipe, physical cleaning partly is arranged at front end and the rear-most end of last gas purifier eventually, and modules such as apportion is dustproof, absorption can be extracted out in the horizontal direction; Electron chemistry purifies part and uses industrial power, be arranged at the middle-end of last gas purifier eventually, the based on fuel type, select 2-3 in the purification styles such as suitable photocatalyst reaction, high-pressure electrostatic precipitation, energetic ion purification, plasma catalytic, control system partly is arranged at the firing chamber operating console, purify part and make module, can extract out in the horizontal direction, itself and startup combustor are synchronous; At dustproof module near-end, increase cleaning mode dedustings such as mechanical type strikes off, reverse high pressure washing;

C, warning circuit:

Near-end at whole last gas purifier arranges 1-2 pressure transducer, when the outlet pipe internal pressure reaches certain numerical value, when influence discharging and combustion chamber power, the pressure sensor circuit warning, show that at operating console prompting cleaning or replacing be the dustproof module of last gas purifier eventually.

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