CN110043348A - A kind of exhaust gas purification system and its working method of anti-vehicle exhaust diffusion - Google Patents

A kind of exhaust gas purification system and its working method of anti-vehicle exhaust diffusion Download PDF

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Publication number
CN110043348A
CN110043348A CN201910447374.0A CN201910447374A CN110043348A CN 110043348 A CN110043348 A CN 110043348A CN 201910447374 A CN201910447374 A CN 201910447374A CN 110043348 A CN110043348 A CN 110043348A
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Prior art keywords
injection spray
spray pipe
vehicle exhaust
exhaust
pipe
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CN201910447374.0A
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CN110043348B (en
Inventor
李艳菲
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Xiamen University Tan Kah Kee College
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Xiamen University Tan Kah Kee College
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/105General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
    • F01N3/108Auxiliary reduction catalysts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2570/00Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14Nitrogen oxides
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

The present invention relates to the exhaust gas purification systems and its working method of a kind of anti-vehicle exhaust diffusion, the system includes water tank, electrodynamic pump, injection spray pipe, spraying baffle, collector tube and catch box, the water tank and electrodynamic pump are mounted on vehicle frame, the water tank is connect through low pressure pipeline with electrodynamic pump, the injection spray pipe is hollow cirque structure, the annular portion of the injection spray pipe is evenly equipped with distribution pipe, collect each distribution pipe front end, rear end is respectively equipped with nozzle, the electrodynamic pump is connected to through pressure piping with the pooled portion of injection spray pipe, the injection spray pipe is set on the exhaust pipe of automobile by hollow portion, the spraying baffle is mounted on the rear lateral portion of injection spray pipe, described collector tube one end is connect with spraying baffle, the other end is connect with catch box.The system and its working method not only contribute to prevent the diffusion of vehicle exhaust, and cleaning of off-gas simultaneously reduces exhaust temperature, and structure is simple, is easily installed realization.

Description

A kind of exhaust gas purification system and its working method of anti-vehicle exhaust diffusion
Technical field
The present invention relates to automobile exhaust gas purifying installation technical fields, and in particular to a kind of tail gas of anti-vehicle exhaust diffusion is net Change system and its working method.
Background technique
It is directly discharged in air currently, the engine exhaust of nearly all fuel combustion vehicle is vented exhaust pipe by it, These tail gas contain the pernicious gases such as a large amount of sulfide, nitrogen oxides, carbon, lead and pellet, these exhaust emissions Object distributivity diffuses in air, is continuously increased the degree of pernicious gas in air, floating dust, haze, serious ground contamination The living environment of the mankind threatens the health of the mankind.
Automobile manufacture industry mainly takes emission controls by improving combustion and external purification (exhaust aftertreatment) measure, machine to the purification of exhaust gas It is inside electronic control system to be sprayed using closed loop fuel, that is, lean on lambda sensor feedback control, there are also exhaust gas to recycle (EGR Valve) system inhibits the generation of nitrogen oxides.External purification is discharge can be made useless by three unique catalytic converter (exhaust aftertreatment) Harmful components CO, HC, NO in gasxThere is certain decline.Due to factors, automobile will cause after travelling one section of mileage Lambda sensor and ternary catalyzing unit poison deactivation, ternary catalyzing unit blocking and EGR valve are deposited the failures such as object obstruction clamping stagnation, from And cause the problems such as engine emission controls by improving combustion is abnormal, tail gas is exceeded.It many times arises a problem that and is not also noticeable, Motor Maintenance also and is changed without correlated parts, causes not to be purified with disease still traveling discharge.Even if ternary catalyzing unit It does not fail, still has part pernicious gas and be discharged and spread in air, or even thick smoke is caused to have no to block.This is Because being holding idle stability without exhaust gas recirculatioon, full load during general exhaust gas recycling system warming-up and when idling With to make engine have enough dynamic property also without exhaust gas recirculatioon, inevitably still have so more when high speed The discharge of NOx can not limit.
In order to inhibit NOxDischarge, someone has developed SCR system, i.e., automobile-used selective catalytic reduction exhaust aftertreatment (SCR) system, a kind of technology reacted again with vehicle exhaust by the ammonia that urea reaction generates, but SCR is one Complicated system, there is also following deficiencies other than structure is complicated: 1, SCR installation is complicated, at high cost, must dispatch from the factory in automobile Preceding installation.2, production urea can also cause secondary pollution.3, SCR does not have effect must the pollutants such as CO, CH, particle in tail gas Other equipment must be installed additional.4, SCR requires automobile intelligent high, is easy to cause automobile that can not light a fire.5, it is assembled with SCR post-processing system Most of vehicles all cause the new fault point of vehicle after system, not high so as to cause present SCR popularity rate.Soot is used in diesel vehicle Particle purification, also only uses millipore filter.Filter work a period of time will also remove the particle accumulated on filter core in time, Otherwise it will increase exhaust resistance.Also fan is installed in exhaust ports to prevent from blocking in filter, also some with spraying again Gasoline puts the substance burn-up that torch gets lodged in filter port again.But these methods, which exist, generates new harmful components release, Bu Nengjing Change exhaust gas, cannot especially prevent Tail Gas from spreading in urban environment and pollute, and environment temperature is increased.
Summary of the invention
The purpose of the present invention is to provide the exhaust gas purification systems and its working method of a kind of anti-vehicle exhaust diffusion, this is System and its working method not only contribute to prevent the diffusion of vehicle exhaust, cleaning of off-gas and reduce exhaust temperature, and structure letter It is single, it is easily installed realization.
To achieve the above object, the technical scheme is that a kind of exhaust gas purification system of anti-vehicle exhaust diffusion, packet It includes water tank, electrodynamic pump, injection spray pipe, spraying baffle, collector tube and catch box, the water tank and electrodynamic pump and is mounted on vehicle frame On, the water tank is connect through low pressure pipeline with electrodynamic pump, and the injection spray pipe is hollow cirque structure, the injection spray pipe Annular portion is evenly equipped with distribution pipe, and each distribution pipe front end is collected, and rear end is respectively equipped with nozzle, and the electrodynamic pump is through pressure piping and spray The pooled portion of mist pipe is connected to, and the injection spray pipe is set on the exhaust pipe of automobile by hollow portion, and the spraying baffle is mounted on The rear lateral portion of injection spray pipe, described collector tube one end are connect with spraying baffle, and the other end is connect with catch box.
Further, the injection spray pipe includes inside and outside two round metal tubes, inside and outside two round metal tubes it Between annular portion be evenly equipped with several distribution pipes, each distribution pipe front end be connected to annular pooled portion, the annular pooled portion and Pressure piping connection, each distribution pipe rear end are separately installed with nozzle, to spray water mist, absorb vehicle exhaust.
Further, the setting angle of each nozzle is tilted to spraying tube hub, to spray water simultaneously when all nozzles When mist, contraction-like water mist wall is formed, blocks and absorbs vehicle exhaust.
Further, the spraying baffle includes arc-shaped door and vertical baffle, and the collector tube is arc-shaped liquid collecting Pipe, the arc-shaped door front end are mounted on the upper back of injection spray pipe, and rear end is connect with vertical baffle upper end, the vertical gear Plate lower end is connect with arc-shaped collector tube, to block the water mist sprayed, is back to catch box after collecting.
Further, the water tank is equipped with filler, and the catch box is equipped with leakage fluid dram.
The present invention also provides a kind of working methods of the exhaust gas purification system of anti-vehicle exhaust diffusion, comprising the following steps:
1) when automobile engine works, activation system, electrodynamic pump is started to work;
2) electrodynamic pump extracts aqueous out from water tank, is transported to injection spray pipe by pressure piping after pressurization;
3) injection spray pipe ejects water mist by distribution pipe thereon and nozzle, blocks vehicle exhaust, and with the powder in vehicle exhaust Dirt, exhaust gas sufficiently collide cohesion, reaction;
4) water mist of vehicle exhaust is absorbed by the blocking of spraying baffle, is converged into collector tube, is then back to catch box.
Further, which is characterized in that the setting angle set on each nozzle of injection spray pipe rear end is tilted to spraying tube hub Set angle, to form contraction-like water mist wall, sufficiently block vehicle exhaust when all nozzles spray water mist simultaneously.
Further, nitric acid tobacco inorganic agent is added in the water of the water tank.
Compared to the prior art, the beneficial effects of the present invention are: providing a kind of exhaust gas purification system and its working method, The system and its working method by the way that spraying system is arranged in the exhaust pipe rear end of automobile, by sprinkling water mist to vehicle exhaust into Row cohesion, absorbs reaction, it is therefore prevented that the diffusion of vehicle exhaust has not only purified tail gas, also reduces exhaust temperature, and will not Generate secondary pollution.The waste liquid of collection can also be further converted into liquid industrial raw material recycling, will not generate secondary pollution.This Outside, the system structure is simple, and manufacturing cost is low, and easily fabricated, installation is implemented, and has very strong practicability and wide application Prospect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the exhaust gas purification system of the embodiment of the present invention.
In figure, 1, water tank, 2, electrodynamic pump, 3, injection spray pipe, 4, spraying baffle, 5, collector tube, 6, catch box, 7, low-voltage tube Road, 8, distribution pipe, 9, nozzle, 10, pressure piping, 11, annular pooled portion, 12, hollow portion, 13, inner circular metal tube, 14, outer Round metal tube, 15, arc-shaped door, 16, vertical baffle, 17, filler, 18, leakage fluid dram.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is described in further details.
The present invention removes SCR system first, on the basis of the outer purifier ternary catalyzing unit of existing exhaust aftertreatment, The exhaust gas purification system for installing an anti-vehicle exhaust diffusion additional again on automobile exhaust pipe, (can be added using clean aqueous The tobacco inorganic agent of nitrogen oxides can be eliminated) generate the diffusion that high-pressure water mist stops vehicle exhaust, while the pernicious gas discharged Some is converted to innocuous gas after harmful components CO, HC, SO, NO etc. are absorbed by water mist, and some generation acidic liquids recycle, thus Tail gas is purified.
The exhaust gas purification system of anti-vehicle exhaust diffusion proposed by the present invention, as shown in Figure 1, including water tank 1, electrodynamic pump 2, injection spray pipe 3, spraying baffle 4, collector tube 5 and catch box 6, water tank 1 and electrodynamic pump 2 are mounted on vehicle frame, and water tank 1 is through low Pressure pipeline 7 is connect with electrodynamic pump 2, and injection spray pipe 3 is hollow cirque structure, and the annular portion of injection spray pipe 3 is evenly equipped with distribution pipe 8, Each 8 front end of distribution pipe is collected, and rear end is respectively equipped with nozzle 9, and electrodynamic pump 2 connects through the pooled portion 11 of pressure piping 10 and injection spray pipe 3 Logical, injection spray pipe 3 is set on the tailpipe of automobile by hollow portion 12, and spraying baffle 4 is mounted on the rear lateral portion of injection spray pipe 3, 5 one end of collector tube is connect with spraying baffle 4, and the other end is connect with catch box 6.Water tank 1 is equipped with filler 17, and catch box 6 is set There is leakage fluid dram 18.
Specifically, injection spray pipe 3 include inside and outside two round metal tubes 13,14, inside and outside two round metal tubes 13,14 it Between annular portion be evenly equipped with several distribution pipes 8, each 8 front end of distribution pipe be connected to annular pooled portion 11, annular pooled portion 11 and height Pressure pipeline 10 is connected to, and each 8 rear end of distribution pipe is separately installed with nozzle 9, to spray water mist, absorbs vehicle exhaust.The peace of each nozzle 9 It fills angle and tilts about 20 ° to spraying tube hub, to form contraction-like water mist wall, block when all nozzles spray water mist simultaneously And vehicle exhaust is absorbed, prevent the diffusion of tail gas flue dust.
In order to sufficiently block and collect the water mist sprayed, spraying baffle 4(includes arc-shaped door 15 and vertical baffle 16), collector tube 5 is arc-shaped collector tube, and arc-shaped 15 front end of door is mounted on the upper back of injection spray pipe 3, rear end and vertical The connection of 16 upper end of baffle, vertical 16 lower end of baffle is connect with arc-shaped collector tube 5, to block the water mist sprayed, is returned after collecting It flow to catch box 6.
The present invention also provides the working methods of above-mentioned exhaust gas purification system, comprising the following steps:
1) when automobile engine works, activation system, electrodynamic pump 2 is started to work.
2) electrodynamic pump 2 extracts aqueous out from water tank 1, is transported to injection spray pipe 3 by pressure piping 10 after pressurization.
3) injection spray pipe 3 ejects 1-100 μm of superfine spray by distribution pipe 8 thereon and high-performance nozzle 9, blocks automobile Tail gas, and with dust, the exhaust gas in vehicle exhaust sufficiently collide cohesion, react.In the present embodiment, it is set to 3 rear end of injection spray pipe Each nozzle 9 setting angle to spraying tube hub tilt about 20 °, with when all nozzles simultaneously spray water mist when, formed shrink Shape water mist wall, sufficiently blocks vehicle exhaust.
4) water mist of vehicle exhaust is absorbed by the blocking of spraying baffle 4, is converged into collector tube 5, is then back to collection Liquid case 6.
In the present invention, there are following two methods to the purification of vehicle exhaust gas, nitrogen oxides:
1, water is only added in water tank.
Water in water tank enters electrodynamic pump pressurization by low pressure pipeline, then enters injection spray pipe 3 through pressure piping, then through spraying Mouth 9 continuously sprays, since nozzle tilts 20 ° to the garden heart of jet pipe, formed capture together, reunion flue dust it is contraction-like high-effect anti- Dirt water mist wall, stops the diffusion of tail gas, and with water mist following react can occur for the nitrogen oxides in tail gas:
2NO + O2 = 2NO2
3NO2 + H2O = 2HNO3 + NO
4NO + 3O2 + 2H2O = 4HNO3
In this way, nitric oxide, nitrogen dioxide, dinitrogen pentoxide etc. can be dissolved in water.Nitrogen oxides in effluent is through water spray It can be reduced, the liquid 4HNO of generation3Being collected by catch box is used as the raw material of industry recycling, can turn waste into wealth.
2, in addition to water in water tank, then it is properly added ICN-04(nitric acid tobacco inorganic agent).
The characteristics of ICN-04 is a kind of environmental protection inorganic agent for being easy to buy, ICN-04 is:
1) ICN-04 itself is nontoxic, without secondary pollution, is suitable for various environment.
2) nitrogen oxides can be all reduced to nitrogen by ICN-04, thoroughly eliminate the pollution of nitrogen oxides of exhaust gas, nontoxic It is without secondary pollution.
3) easy to operate, a certain amount of ICN-04 is directly added into water tank in filler.
4) cost and the operating cost for adding ICN-04 are lower than other methods expense.
The above are preferred embodiments of the present invention, all any changes made according to the technical solution of the present invention, and generated function is made When with range without departing from technical solution of the present invention, all belong to the scope of protection of the present invention.

Claims (8)

1. a kind of exhaust gas purification system of anti-vehicle exhaust diffusion, which is characterized in that including water tank, electrodynamic pump, injection spray pipe, spray Mist baffle, collector tube and catch box, the water tank and electrodynamic pump are mounted on vehicle frame, and the water tank is through low pressure pipeline and electricity Dynamic pump connection, the injection spray pipe is hollow cirque structure, and the annular portion of the injection spray pipe is evenly equipped with distribution pipe, each distribution pipe Front end is collected, and rear end is respectively equipped with nozzle, and the electrodynamic pump is connected to through pressure piping with the pooled portion of injection spray pipe, the injection spray pipe It is set on the exhaust pipe of automobile by hollow portion, the spraying baffle is mounted on the rear lateral portion of injection spray pipe, the collector tube one End is connect with spraying baffle, and the other end is connect with catch box.
2. a kind of exhaust gas purification system of anti-vehicle exhaust diffusion according to claim 1, which is characterized in that described spraying Pipe includes inside and outside two round metal tubes, and the annular portion between inside and outside two round metal tubes is evenly equipped with several distribution Pipe, each distribution pipe front end are connected to annular pooled portion, and the annular pooled portion is connected to pressure piping, each distribution pipe Rear end is separately installed with nozzle, to spray water mist, absorbs vehicle exhaust.
3. a kind of exhaust gas purification system of anti-vehicle exhaust diffusion according to claim 2, which is characterized in that each spray The setting angle of mouth is tilted to spraying tube hub, to form contraction-like water mist wall, block when all nozzles spray water mist simultaneously And absorb vehicle exhaust.
4. a kind of exhaust gas purification system of anti-vehicle exhaust diffusion according to claim 1, which is characterized in that described spraying Baffle includes arc-shaped door and vertical baffle, and the collector tube is arc-shaped collector tube, the arc-shaped door front end installation In the upper back of injection spray pipe, rear end is connect with vertical baffle upper end, and the vertical baffle lower end is connect with arc-shaped collector tube, To block the water mist sprayed, catch box is back to after collecting.
5. a kind of exhaust gas purification system of anti-vehicle exhaust diffusion according to claim 1, which is characterized in that the water storage Case is equipped with filler, and the catch box is equipped with leakage fluid dram.
6. a kind of working method of the exhaust gas purification system of anti-vehicle exhaust diffusion, which comprises the following steps:
1) when automobile engine works, activation system, electrodynamic pump is started to work;
2) electrodynamic pump extracts aqueous out from water tank, is transported to injection spray pipe by pressure piping after pressurization;
3) injection spray pipe ejects water mist by distribution pipe thereon and nozzle, blocks vehicle exhaust, and with the powder in vehicle exhaust Dirt, exhaust gas sufficiently collide cohesion, reaction;
4) water mist of vehicle exhaust is absorbed by the blocking of spraying baffle, is converged into collector tube, is then back to catch box.
7. a kind of working method of the exhaust gas purification system of anti-vehicle exhaust diffusion according to claim 6, feature exist In the setting angle set on each nozzle of injection spray pipe rear end tilts set angle to spraying tube hub, to work as all nozzles simultaneously When spraying water mist, contraction-like water mist wall is formed, vehicle exhaust is sufficiently blocked.
8. a kind of working method of the exhaust gas purification system of anti-vehicle exhaust diffusion according to claim 6, feature exist In added with nitric acid tobacco inorganic agent in the water of the water tank.
CN201910447374.0A 2019-05-27 2019-05-27 Tail gas purification system capable of preventing automobile tail gas from diffusing and working method thereof Active CN110043348B (en)

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CN201910447374.0A CN110043348B (en) 2019-05-27 2019-05-27 Tail gas purification system capable of preventing automobile tail gas from diffusing and working method thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114017165A (en) * 2021-11-18 2022-02-08 王祥垒 Secondary purifier for tail gas of engine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM287868U (en) * 2005-07-06 2006-02-21 Ching-Chuan Wu Exhaust gas purification device
CN201212411Y (en) * 2008-04-01 2009-03-25 任才龙 Atomization type automobile tail gas purifier
KR20120000961A (en) * 2010-06-28 2012-01-04 현대제철 주식회사 Apparatus for removing nitrogen oxide of flue gas
CN105134339A (en) * 2015-09-25 2015-12-09 哈尔滨工业大学(威海) Automobile exhaust purifying device adopting water fog charges and plasma
CN209925064U (en) * 2019-05-27 2020-01-10 厦门大学嘉庚学院 Tail gas purification device for preventing automobile tail gas diffusion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM287868U (en) * 2005-07-06 2006-02-21 Ching-Chuan Wu Exhaust gas purification device
CN201212411Y (en) * 2008-04-01 2009-03-25 任才龙 Atomization type automobile tail gas purifier
KR20120000961A (en) * 2010-06-28 2012-01-04 현대제철 주식회사 Apparatus for removing nitrogen oxide of flue gas
CN105134339A (en) * 2015-09-25 2015-12-09 哈尔滨工业大学(威海) Automobile exhaust purifying device adopting water fog charges and plasma
CN209925064U (en) * 2019-05-27 2020-01-10 厦门大学嘉庚学院 Tail gas purification device for preventing automobile tail gas diffusion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114017165A (en) * 2021-11-18 2022-02-08 王祥垒 Secondary purifier for tail gas of engine

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