CN105927344A - Automotive exhaust purification device and purification process thereof - Google Patents

Automotive exhaust purification device and purification process thereof Download PDF

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Publication number
CN105927344A
CN105927344A CN201610460986.XA CN201610460986A CN105927344A CN 105927344 A CN105927344 A CN 105927344A CN 201610460986 A CN201610460986 A CN 201610460986A CN 105927344 A CN105927344 A CN 105927344A
Authority
CN
China
Prior art keywords
purifier
exhaustor
purification device
absorbant
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610460986.XA
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Chinese (zh)
Inventor
尤为
杨燕宗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Longying Environmental Protection Technology Co Ltd
Original Assignee
Wuxi Longying Environmental Protection Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuxi Longying Environmental Protection Technology Co Ltd filed Critical Wuxi Longying Environmental Protection Technology Co Ltd
Priority to CN201610460986.XA priority Critical patent/CN105927344A/en
Publication of CN105927344A publication Critical patent/CN105927344A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0821—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with particulate filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2370/00—Selection of materials for exhaust purification
    • F01N2370/40—Activated carbon or charcoal

Abstract

The invention discloses an automotive exhaust purification device and a purification process of the automotive exhaust purification device. The automotive exhaust purification device comprises an exhaust pipe, a first purification device, a second purification device and a silencer. The first purification device, the second purification device and the silencer are sequentially arranged on the exhaust pipe in the intake direction of the exhaust pipe. An adsorption layer and a catalyst layer are sequentially arranged in the first purification device in the intake direction of the exhaust pipe. Conduits are arranged on the position, at the front end in the second purification device, at the bottom of the exhaust pipe. Through holes are formed in the portion, at the rear end in the second purification device, of the exhaust pipe. The portion, at the front end in the second purification device, of the exhaust pipe and the portion, at the rear end in the second purification device, of the exhaust pipe are partitioned by a baffle. A feeding pipe is arranged at the upper end of the side wall of a shell of the second purification device, a discharging pipe is arranged at the lower end of the side wall of the shell of the second purification device, and each of the feeding pipe and the discharging pipe is provided with a sealing cover. According to the purification process, solid particles and harmful gas in automotive exhaust are removed through the first purification device and the second purification device. By the adoption of the automotive exhaust purification device and the purification process, harmful matter in the automotive exhaust can be removed quite thoroughly, and purification efficiency is high.

Description

A kind of automobile exhaust gas purifying installation and purification technique thereof
Technical field
The present invention relates to environmental protection technical field, be specifically related to a kind of automobile exhaust gas purifying installation and purify technique.
Background technology
Along with expanding economy and the increase of automobile pollution, vehicle exhaust becomes one of main source of urban air pollution thing.Particularly in large-and-medium size cities, car owning amount linearly ascendant trend, the discharge of vehicle exhaust causes bigger harm to the healthy of urbanite, is that the major pollutants contained in the main source vehicle exhaust of modern city air pollution have: CO, CO2、NOx、S02, benzopyrene, solid particulate matter etc..Current study show that have the exhaust emission of bigger harm to be mainly CO, S0 to the person2And NOx(include NO and NO2).China's city automobile recoverable amount is concentrated, and uses frequency high, uses the cycle long；The most in recent years, family saloon quantity sharp increase, automobile gas emission pollution was on the rise, and controlled automobile exhaust pollution extremely the most urgent.
Research to automobile exhaust pollution starts from the America and Europe in mid-term in 20th century, and China then starts from the eighties in 20th century.In terms of road traffic automobile exhaust pollution research.The most many scholars carried out substantial amounts of work.It is concentrated mainly on the following aspects: the 1. research in terms of avenue automobile exhaust pollution and health security risk evaluations；2. the research of aspect is endured in the angles of science monitoring that uses of the new technology vehicle exhaust Pacific herring flag and expansion；3. combine tail gas pollution model and urban traffic road atmospheric environment is carried out impact analysis.
Fuel-engined vehicle tail gas is substantially the tail gas eliminating a part by three-element catalytic or common drainage screen at present, and it is CO and NO discharged by vehicle exhaustxIt is changed into harmless carbon dioxide, water and nitrogen by oxidation and reduction etc. harmful gas, finally it is discharged in air, although this decreases the discharge of harmful gas, but but add the discharge capacity of GHG carbon dioxide, nor the discharge of solid particulate matter can be reduced, purification efficiency is low simultaneously, and existing marketed automobile exhaust gas purifying installation generally has the shortcomings such as structure complexity, cost height and purification efficiency are low.
Summary of the invention
For the deficiencies in the prior art, the present invention provides a kind of automobile exhaust gas purifying installation and purifies technique, and this purifier simple in construction is high to purifying efficiency of automobile exhaust.
The technical solution used in the present invention is as follows:
A kind of automobile exhaust gas purifying installation, including exhaustor, the first purifier, the second purifier and deafener, described first purifier, the second purifier, deafener are successively set on exhaustor along exhaustor airintake direction, are disposed with adsorption layer and catalyst layer along exhaustor airintake direction in described first purifier；It is provided with conduit bottom described second purifier interior forward end exhaustor, it is provided with through hole on second purifier Internal back end exhaustor, second purifier interior forward end, rear end exhaustor are separated by baffle plate, second purifier housing sidewall upper end is provided with feed pipe, lower end is provided with discharge nozzle, and feed pipe, discharge nozzle are provided with sealing lid.
Preferably, it is additionally provided with drainage screen before the described adsorption layer in the first purifier.
Preferably, described in the bottom of the first purifier that has be additionally provided with valve, be used for discharging dust bulky grain.
Preferably, described adsorption layer is activated carbon adsorption layer.
Preferably, described catalyst layer is CeO2Catalyst layer.
The purifying vehicle exhaust technique of described automobile exhaust gas purifying installation, comprises the following steps:
(1) liquid-absorbant is joined in the second purifier from feed pipe；
(2) vehicle exhaust entrance exhaustor falls big particle diameter solid particulate matter through the filter screen filtration of the first purifier, filters out small particle size solid particulate matter through adsorption layer, through catalyst layer, CO, the NO in tail gas is converted into CO2、NO2；
Tail gas after (3) first purifiers process enters the second purifier, and in conduit enters liquid-absorbant, liquid-absorbant absorbs and removes CO2、SO2、H2S、NO2After gas, tail gas enters acoustic filter from through hole, discharges from exhaustor afterbody.
Preferably, described liquid-absorbant is NHD liquid-absorbant.
Preferably, in described step (1), liquid-absorbant is less than the 1/2 of the second purifier volume.
Beneficial effect: present configuration is reasonable in design, by using the first purifier and the second purifier to remove the solid particulate matter in vehicle exhaust and harmful gas respectively, NHD liquid-absorbant the most just can preferably absorb the CO in vehicle exhaust2、SO2、H2S、NO2It is few that gas pollutant and process tail gas have the advantage that (1) absorbs the most remaining harmful gas；(2) liquid corrosion is little requires relatively low to container material；(3) the low wide geographic areas such as temperate zone, the torrid zone that adapt to of freezing point of liquid use.The present invention uses the method that solid absorption and liquid adsorption combine, can the nuisance removed in vehicle exhaust more thoroughly, purification efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of automobile exhaust gas purifying installation.
Wherein figure acceptance of the bid score not Biao Shi: 1, exhaustor；2, the first purifier；3, the second purifier；4, deafener；5, drainage screen；6, adsorption layer；7, catalyst layer；8, valve；9, conduit；10, through hole；11, baffle plate；12, feed pipe；13, discharge nozzle；14, lid is sealed.
Detailed description of the invention
Below by combining accompanying drawing specific embodiment, the present invention is further described in detail, but is not limited to this.
Embodiment 1
As shown in Figure 1, a kind of automobile exhaust gas purifying installation, including exhaustor the 1, first purifier the 2, second purifier 3 and deafener 4, described first purifier the 2, second purifier 3, deafener 4 are successively set on exhaustor 1 along exhaustor airintake direction, it is disposed with drainage screen 5, adsorption layer 6 and catalyst layer 7 along exhaustor airintake direction in described first purifier 2, described adsorption layer 6 is activated carbon adsorption layer, and described catalyst layer 7 is CeO2Catalyst layer, the bottom of the first purifier 2 is additionally provided with valve 8, is used for discharging dust bulky grain；It is provided with conduit 9 bottom described second purifier 3 interior forward end exhaustor, it is provided with through hole 10 on second purifier 3 Internal back end exhaustor, second purifier interior forward end, rear end exhaustor are separated by baffle plate 11, second purifier 3 housing sidewall upper end is provided with feed pipe 12, lower end is provided with discharge nozzle 13, and feed pipe 12, discharge nozzle 13 are provided with sealing lid 14.
The purifying vehicle exhaust technique of described automobile exhaust gas purifying installation, comprises the following steps:
(1) being joined from feed pipe 12 by NHD liquid-absorbant in the second purifier 3, NHD liquid-absorbant is the 1/2 of the second purifier volume；
(2) vehicle exhaust enters exhaustor 1 and filters out big particle diameter solid particulate matter through the drainage screen 5 of the first purifier 2, filters out small particle size solid particulate matter through adsorption layer 6, through catalyst layer 7, CO, the NO in tail gas is converted into CO2、NO2；
Tail gas after (3) first purifiers 2 process enters the second purifier 3, enters in liquid-absorbant through conduit 9, and liquid-absorbant absorbs and removes CO2、SO2、H2S、NO2After gas, tail gas enters acoustic filter 4 from through hole 10, discharges from exhaustor afterbody.
The present invention removes the solid particulate matter in vehicle exhaust by the first purifier, removes harmful gas by the second purifier, and NHD liquid-absorbant can preferably absorb the CO in vehicle exhaust2、SO2、H2S、NO2Gas pollutant, the present invention uses the method that solid absorption and liquid adsorption combine, can the nuisance removed in vehicle exhaust more thoroughly, purification efficiency is high.

Claims (8)

1. an automobile exhaust gas purifying installation, including exhaustor (1), the first purifier (2), the second purifier (3) and deafener (4), it is characterized in that described first purifier (2), the second purifier (3), deafener (4) are successively set on exhaustor (1) along exhaustor airintake direction, in described first purifier (2), be disposed with adsorption layer (6) and catalyst layer (7) along exhaustor airintake direction；It is provided with conduit (9) bottom described second purifier (3) interior forward end exhaustor, through hole (10) it is provided with on second purifier (3) Internal back end exhaustor, second purifier interior forward end, rear end exhaustor are separated by baffle plate (11), second purifier (3) housing sidewall upper end is provided with feed pipe (12), lower end is provided with discharge nozzle (13), and feed pipe (12), discharge nozzle (13) are provided with sealing lid (14).
Automobile exhaust gas purifying installation the most according to claim 1, it is characterised in that be additionally provided with drainage screen (5) before the described adsorption layer (6) in the first purifier (2).
Automobile exhaust gas purifying installation the most according to claim 1, it is characterised in that described in the bottom of the first purifier (2) that has be additionally provided with valve (8).
Automobile exhaust gas purifying installation the most according to claim 1, it is characterised in that described adsorption layer (6) is activated carbon adsorption layer.
Automobile exhaust gas purifying installation the most according to claim 1, it is characterised in that described catalyst layer (7) is CeO2Catalyst layer.
6. purifying vehicle exhaust technique based on the automobile exhaust gas purifying installation described in claim 1, it is characterised in that comprise the following steps:
(1) liquid-absorbant is joined in the second purifier (3) from feed pipe (12)；
(2) vehicle exhaust enters the exhaustor (1) drainage screen (5) through the first purifier (2) and filters out big particle diameter solid particulate matter, filter out small particle size solid particulate matter through adsorption layer (6), through catalyst layer (7), CO, the NO in tail gas is converted into CO2、NO2；
Tail gas after (3) first purifiers process enters the second purifier (3), and in conduit (9) enters liquid-absorbant, liquid-absorbant absorbs and removes CO2、SO2、H2S、NO2After gas, tail gas enters acoustic filter (4) from through hole (10), discharges from exhaustor afterbody.
Purifying vehicle exhaust technique the most according to claim 6, it is characterised in that described liquid-absorbant is NHD liquid-absorbant.
Purifying vehicle exhaust technique the most according to claim 6, it is characterised in that in described step (1), liquid-absorbant is less than the 1/2 of the second purifier volume.
CN201610460986.XA 2016-06-23 2016-06-23 Automotive exhaust purification device and purification process thereof Pending CN105927344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610460986.XA CN105927344A (en) 2016-06-23 2016-06-23 Automotive exhaust purification device and purification process thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610460986.XA CN105927344A (en) 2016-06-23 2016-06-23 Automotive exhaust purification device and purification process thereof

Publications (1)

Publication Number Publication Date
CN105927344A true CN105927344A (en) 2016-09-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108757112A (en) * 2018-08-08 2018-11-06 南京博酝化工科技有限公司 A kind of high-level cleaner and application method of adsorption vehicle tail gas

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979600A (en) * 2012-12-28 2013-03-20 长安大学 Automobile tail gas purifying device
CN204212840U (en) * 2014-11-19 2015-03-18 重庆电讯职业学院 Tail gas discharger
CN204646371U (en) * 2015-03-24 2015-09-16 河南省新清爽环保科技有限公司 A kind of automobile tail gas noise elimination purification plant
CN204729152U (en) * 2015-05-20 2015-10-28 孟如苗 A kind of high efficiency automobile exhaust gas purifying installation
CN205154316U (en) * 2015-11-21 2016-04-13 杨小玲 Can prevent dust and fall environment -friendly tail -gas clean -up ware of making an uproar
CN205805667U (en) * 2016-06-23 2016-12-14 无锡龙盈环保科技有限公司 A kind of automobile exhaust gas purifying installation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979600A (en) * 2012-12-28 2013-03-20 长安大学 Automobile tail gas purifying device
CN204212840U (en) * 2014-11-19 2015-03-18 重庆电讯职业学院 Tail gas discharger
CN204646371U (en) * 2015-03-24 2015-09-16 河南省新清爽环保科技有限公司 A kind of automobile tail gas noise elimination purification plant
CN204729152U (en) * 2015-05-20 2015-10-28 孟如苗 A kind of high efficiency automobile exhaust gas purifying installation
CN205154316U (en) * 2015-11-21 2016-04-13 杨小玲 Can prevent dust and fall environment -friendly tail -gas clean -up ware of making an uproar
CN205805667U (en) * 2016-06-23 2016-12-14 无锡龙盈环保科技有限公司 A kind of automobile exhaust gas purifying installation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108757112A (en) * 2018-08-08 2018-11-06 南京博酝化工科技有限公司 A kind of high-level cleaner and application method of adsorption vehicle tail gas

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Application publication date: 20160907