CN103925048A - Automobile exhaust suction filter with suction filtrate recycling function and work method thereof - Google Patents
Automobile exhaust suction filter with suction filtrate recycling function and work method thereof Download PDFInfo
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- CN103925048A CN103925048A CN201410172130.3A CN201410172130A CN103925048A CN 103925048 A CN103925048 A CN 103925048A CN 201410172130 A CN201410172130 A CN 201410172130A CN 103925048 A CN103925048 A CN 103925048A
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Abstract
The invention discloses an automobile exhaust suction filter with the suction filtrate recycling function. The automobile exhaust suction filter comprises a first-level suction filter component and a second-level suction filter component which are hollow. One end of the first-level suction filter component is fixed to the position of an exhaust port on the periphery of an exhaust pipe of an automobile through a fixing device and the other end of the first-level suction filter component is connected to the second-level suction filter component through a suction filter connecting piece. A recyclable exhaust suction device is arranged in the first-level suction filter component and an exhaust filter device is arranged in the second-level suction filter component. The suction rate of acidic materials such as sulfur dioxide, nitrogen oxides and hydrogen sulfide, which are sucked by the exhaust suction filter, in exhaust is over 95%, the content of acidic materials, solid particulate matter (PM2.5) and the like in emitted exhaust is remarkably lower than the national emission standard, and the disposal effect is remarkable.
Description
Technical field
The invention belongs to vehicle exhaust process field, be specifically related to vehicle exhaust absorption filter cleaner and method of work thereof that a kind of suction strainer liquid recycles, the circulation absorbing and filtering device that the solid particles such as PM2.5 are filtered.
Background technique
When motor car engine work, can give off a large amount of harmful gases and particulate matter, as oxynitrides, oxygen sulfur compound, PM2.5 particle etc., according to Shanghai Environment Monitoring Center's monitored data first quarter in 2014, " from Shanghai; PM2.5 mainly pollutes and remains industry, because it has comprised 15% industrial technology discharge, 10% industrial boiler and 7% power plant.In traffic, Motor Vehicle adds that the pollution of boats and ships, aircraft accounts for 25% ".These harmful gases and suspending particulate matter are directly discharged in atmosphere, are one of major reasons that current " haze " weather is more and more, haze degree is more and more serious, and the health to people and physical environment all bring great harm.How to control sulfur dioxide in vehicle exhaust, oxynitrides, the discharge amount of the solid particulate matters such as hydrogen sulfide and PM2.5, for reducing pollution of atmosphere, especially urban atmospheric pollution has great importance.
At present China's rapid development of economy, relative has ignored the protection to environment.And the technical merit of China's automobile tail gas cleaning treatment device is uneven, especially for low and middle-grade automobiles, owing to lacking qualified technical personnel, fund input wretched insufficiency, occur that defective, a considerable amount of automobile with small output volume of Vehicular exhaust environmental protecting inspection of recently purchasing and the used car tail gas of growing service life detect defective.Simple process before vehicle annual test, can not ensure the long-term qualified discharge of the tail gas of vehicle, is the important sources of atmospheric pollutant.The treatment device of existing vehicle exhaust is arranged in outlet pipe substantially, maintenance trouble, and replacement cost is high.Present exhaust gas treating method uses catalyzer mostly, and the condition that course of reaction requires is high temperature, high pressure substantially, has increased so undoubtedly cost of production, and in technique, usability is poor.What need now by contrast, is succinct, efficient, relatively less, the simple automobile exhaust gas purifying installation of working service of investment.
Summary of the invention
Object of the present invention is exactly in order to address the above problem, provide the vehicle exhaust that a kind of suction strainer liquid recycles to absorb filter cleaner and method of work thereof, it has the acidic materials such as sulfur dioxide in absorbing automobile exhaust, oxynitrides, hydrogen sulfide, filters in motor vehicle emission tail gas the advantages such as solid particulate matter.
To achieve these goals, the present invention adopts following technological scheme:
The vehicle exhaust that suction strainer liquid recycles absorbs a filter cleaner, comprises one-level suction filter parts and the secondary suction filter parts of hollow.
One end of described one-level suction filter parts is fixed to the position of the relief opening of vehicle-exhaust exhaust pipe periphery by fixing device, other one end of described one-level suction filter parts is connected on secondary suction filter parts by suction filter link.
In described one-level suction filter parts, be provided with the device for absorbing tail gas that can recycle, in described secondary suction filter parts, be provided with tail gas filter.
Described device for absorbing tail gas comprises that suction strainer liquid collection deposits tank, described suction strainer liquid collection is deposited tank and is connected with suction strainer liquid pump by inhaling filtrate pipe, described suction strainer liquid pump is connected with several annular suction strainer liquid nozzle pipes, described annular suction strainer liquid nozzle inner tube wall is provided with several nozzle bores, described suction strainer liquid collection is deposited tank and is connected with the suction strainer liquid sump that fills suction strainer liquid, and described suction strainer liquid sump is arranged on the bottom of secondary suction filter parts.
Described suction strainer liquid collection is deposited tank inside and is provided with filter screen.
Described nozzle bore is needle-like nozzle bore.
Described fixing device is reducing clip, between described one-level suction filter parts and automobile exhaust pipe, is provided with seal ring.
Described tail gas filter comprises several cloud filter screens, and the edge of described cloud filter screen is fixed on the inwall of secondary suction filter parts.Described cloud filter screen is the filter screen of nylon or Stainless Steel Cloth.
Described suction strainer liquid pump is fixed on the outside of one-level suction filter parts, and suction strainer liquid delivery side of pump is by connection by metal hose on nozzle pipe, and suction strainer liquid pump connects taillight power supply, directly controls the work of suction strainer liquid pump by vehicle switch.
Described one-level suction filter parts and secondary suction filter parts are stainless steel material.
The vehicle exhaust that suction strainer liquid recycles absorbs a method of work for filter cleaner, comprises the steps:
Step (1): automobile starting, suction strainer liquid pump is started working, the suction strainer liquid being stored in suction strainer liquid sump is drawn by suction strainer liquid pump, first the collection of depositing tank through suction strainer liquid collection is deposited and is filtered, then by the built-in some suction strainer liquid nozzle pipes of one-level suction filter parts, drench vaporific ejection suction strainer liquid finally by nozzle bore, described suction strainer liquid and vehicle exhaust counter current contacting, fully absorb the acidic materials in tail gas;
Step (2): several cloud filter screens that secondary suction filter parts are built-in, the salt compounds generating during filtration absorption one-level suction filter components interior alkali lye reacts with the acidic materials in tail gas, the suction strainer liquid of tail gas solid particulate matter and interception atomization;
Step (3): the suction strainer liquid that is blocked atomization is collected by suction strainer liquid sump again, crystal salt compounds in suction strainer liquid and PM2.5 solid particulate matter enter suction strainer liquid collection and deposit tank, the filter screen that suction strainer liquid collection is deposited in tank filters described crystal salt compounds and PM2.5 solid particulate matter, ensure the normal operation of suction strainer liquid pump, alkali lye in suction strainer liquid sump after filtering is under the effect of suction strainer liquid pump, again spray from suction strainer liquid nozzle pipe with vaporific through inhaling filtrate pipe, continue circulation and absorb the acidic materials in tail gas.
Suction strainer liquid in described step (1) is that concentration is 5~10% NaOH aqueous slkali; In described suction strainer liquid sump, place phenolphthalein as indicator, according to the change in color of phenolphthalein, judge whether suction strainer liquid sump will change suction strainer liquid.
Beneficial effect of the present invention
1. this tail gas absorbs filter cleaner, the sulfur dioxide in tail gas, and oxynitrides, the acidic materials such as hydrogen sulfide absorb through atomization suction strainer liquid, and absorptivity reaches more than 95%; Solid particulate matter in tail gas is removed clean substantially from tail gas through multilayer cloud strainer filtering, the acidic materials in emission and solid particulate matter (PM2.5) etc. are significantly lower than discharging standards, obvious processing effect.
2. this tail gas absorbs filter cleaner, and integrity is placed on automobile exhaust pipe afterbody, has obvious structural advantage than being built in outlet pipe, and quick access device makes designs simplification.
3. the suction strainer liquid collection of this device is deposited in tank and is provided with filter screen, can avoid the obstruction of suction strainer liquid pump, ensures the smooth absorption of tail gas.
4. the circulating line that is provided with nozzle bore of the present invention is several, can fully absorb the acidic materials in tail gas.
Cloud filter screen of the present invention is some layers, can fully filter the particulate matter in tail gas.
6. suction strainer liquid of the present invention can recycle, and avoids waste, and has also avoided some reactants to be sprayed onto befouling environment in air.
7. this tail gas absorbs filter cleaner, and fabricating cost is low, and operating cost is low, and economic benefit is obvious, and it is convenient to install, safeguard, change.
8. the invention provides a kind of various model automobiles and diesel-oil vehicle of being applicable to, the tail gas that is similar to " mouth mask " is set outside outlet pipe and absorbs filter cleaner, can provide a kind of succinct, efficient, investment is relatively less, working service and remove and install automobile exhaust gas purifying installation easily.
9. reducing clip described in, by outlet pipe, transfers to cleaning system outside outlet pipe, gas leakage part is sealed with seal ring, absorbs like this filter cleaner and makes " mouth mask " to automobile tail gas pipe and process.Adopt this form of reducing clip, can be applicable to automobile and the diesel-oil vehicle of different model, easy accessibility, is convenient to absorb cleaning and the maintenance of filter cleaner.
10. phenolphthalein indicator: monitoring shows the variation of the concentration of suction strainer liquid using phenolphthalein as indicator, and the phenolphthalein of trace is shown in red in alkali lye, in the time that redness is not obvious or become blue, needs to change alkali lye, can inject at this moment clear water wash cycles.
11. integrities.Absorb filter cleaner, be connected on soon exhaust pipe by reducing clip, make to process entirety and be connected on soon outside outlet pipe, do not change existing exhaust pipe structure, easy to install and use.
12. cyclicity.Suction strainer liquid pump provides power for suction strainer liquid nozzle pipe sprays alkali lye, absorb the sulfur dioxide in tail gas, oxynitrides, the acidic materials such as hydrogen sulfide, tail gas continues by cloud filter screen, and some salt compounds that generate enter into suction strainer liquid sump with the alkali lye that spray does not absorb acidic materials, salt compounds is filtered, and continues absorption acidic materials after alkali lye spray.
13. phenolphthalein color instructions.Sulfur dioxide in tail gas, hydrogen sulfide, NO and NO
2deng oxynitrides acidic materials, the alkali liquor absorptions such as available NaOH.Spray Alkali liquid compounding is that concentration is 5~10% NaOH aqueous slkali.In absorption plant, use phenolphthalein to carry out spike instruction, phenolphthalein is shown in red in alkali lye, in the time that redness is not obvious, i.e. and replaceable alkali lye.
14. self-cleaning properties.Suction strainer liquid is collected by suction strainer liquid sump, outlet suction strainer liquid sump is at lower bottom part, the solid particulate matter such as crystal salt compounds and PM2.5 in suction strainer liquid can enter collection and deposit tank, collection is deposited filter screen in tank and can be filtered the solid particulate matters such as these salt compounds crystallizations and PM2.5, ensures that suction strainer liquid pump runs well.
Brief description of the drawings
Fig. 1: tail gas absorbs structure and the schematic flow sheet of filter cleaner.
Fig. 2 (a): nozzle bore distributed architecture schematic diagram.
Fig. 2 (b): suction strainer liquid nozzle pipe and nozzle bore schematic diagram.
Fig. 2 (c): circular suction strainer liquid nozzle tubular construction schematic diagram.
Wherein: 1, vehicle-exhaust exhaust pipe, 2, reducing clip, 3, suction strainer liquid nozzle pipe, 4, one-level suction filter parts, 5, suction filter link, 6, secondary suction filter parts, 7, cloud filter screen, 8, suction strainer liquid pump, 9, inhale filtrate pipe, 10, suction strainer liquid collection is deposited tank, and 11, suction strainer liquid sump, 12, nozzle bore.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, a kind of vehicle exhaust absorbs filter, is 1. connected to vehicle-exhaust exhaust pipe 1 with reducing clip 2, and in joint, sealing prevents gas leakage with seal ring; 2. in absorption portion, suction strainer liquid pump 8 draws the alkali lye in suction strainer liquid sump 11, by the two or more annular suction strainer liquid nozzle pipe 3 of one-level suction filter parts 4 interior settings, through the vaporific ejection alkali lye of nozzle bore 12, absorb sulfur dioxide, oxynitrides in tail gas, the acidic materials such as hydrogen sulfide; 3. interior two or more cloud filter screens 7, the suction strainer liquid of the salt compounds generating in filtration absorption reaction, tail gas solid particulate matter and interception atomization of arranging of secondary suction filter parts 6; 4. suction strainer liquid is collected by suction strainer liquid sump 11, suction strainer liquid sump 11 is at the lower bottom part of secondary suction filter parts 6, the solid particulate matter such as crystal salt compounds and PM2.5 in suction strainer liquid can enter suction strainer liquid collection and deposit tank 10, suction strainer liquid collection is deposited cloud filter screen 7 in tank 10 can filter the solid particulate matters such as these salt compounds crystallizations and PM2.5, ensures that suction strainer liquid pump 8 runs well.
Device for absorbing tail gas, by the fixing suction strainer liquid pump 8 filter cleaner outside that absorbs, suction strainer liquid pump 8 exports by connection by metal hose on suction strainer liquid nozzle pipe 3, suction strainer liquid pump 8 connects taillight power supply, directly controlled the work of suction strainer liquid pump 8 by vehicle switch, for suction strainer liquid pump 8 provides power, draw by inhaling filtrate pipe 9 alkali lye being stored in suction strainer liquid sump 11 after filtering, spray from suction strainer liquid nozzle pipe 3 with vaporific through inhaling filtrate pipe 9, with vehicle exhaust counter current contacting.Two or more annular suction strainer liquid nozzle pipe 3 in absorption plant arranges, atomization suction strainer liquid sulfur dioxide absorption, oxynitrides, the acidic materials such as hydrogen sulfide.The salt compounds and the suction strainer liquid that generate enter into suction strainer liquid sump 11, and the strainer filtering that the salt compounds of crystallization is deposited in tank 10 by suction strainer liquid collection falls, and the suction strainer liquid after filtration is pumped again by suction strainer liquid pump 8, continue circulation and absorb acidic materials.
Described tail gas filter, in secondary suction filter parts 6, arranges two-layer or multistorey strainer mesh, can carry out twice or multiple times of filtration and interception the suction strainer liquid of tail gas particulate matter and atomization.
The alkali lye that described suction strainer liquid sump 11 stores, for sulfur dioxide and hydrogen sulfide acidic materials, available NaOH alkali liquor absorption; For oxynitrides, NO is neither basic oxide, neither acidic oxide, and be salify oxide not, but NO and NO in tail gas
2there is available NaOH alkali liquor absorption Deng oxynitrides simultaneously.Therefore, spray Alkali liquid compounding is that concentration is 5~10% NaOH aqueous slkali.The interior placement phenolphthalein of suction strainer liquid sump 11, as indicator, according to the change in color of phenolphthalein, judges whether suction strainer liquid sump 11 will change suction strainer liquid.
Described two or more annular suction strainer liquid nozzle pipe 3 is uniformly distributed needle-like nozzle bore 12 on suction strainer liquid nozzle pipe 3 inner sides, and the suction strainer liquid of atomizing spray makes it fully to contact with acidic materials.
Described cloud filter screen 7, chooses the tail gas filtering net of nylon or Stainless Steel Cloth material, high ventilative property, low pressure loss, filter for the suction strainer liquid that filters tail gas solid particulate matter and interception atomization, the structure of multistorey strainer mesh improves filtering effect, and reduces filtration resistance as far as possible.
Tail gas absorbs filter cleaner and adopts stainless steel prepared material to make, and adopts corrosion-resistant sealing to prevent suction strainer corrosion.
Tail gas absorbs the installation of filter cleaner: use reducing clip 2, such diameter-changeable device is as quick access device, applicable to the exhaust emission tube of different-diameter.
Tail gas absorbs the operation of filter cleaner: when automobile starting, suction strainer liquid pump 8 is started working immediately, absorption power is provided, make to be stored in the alkali lye in suction strainer liquid sump 11, depositing tank 10 collection through suction strainer liquid collection deposits and filters, spray vaporific suction strainer liquid by suction strainer liquid nozzle pipe 3, to the abundant blended absorbent of acidic materials adverse current in the tail gas of discharging.Cloud filter screen 7 filters the suction strainer liquid of the salt compounds, tail gas solid particulate matter and the interception atomization that generate in absorption reaction.The salt compounds generating and the alkali lye that does not absorb acidic materials enter into suction strainer liquid sump 11, and the strainer filtering that the salt compounds of crystallization is deposited in tank 10 by suction strainer liquid collection falls, and the suction strainer liquid after filtration is pumped by suction strainer liquid pump 8, continues to recycle.
Tail gas absorbs the operation of filter cleaner: when automobile starting, suction strainer liquid pump 8 is started working immediately, absorption power is provided, make to be stored in the alkali lye in suction strainer liquid sump 11, depositing tank 10 collection through suction strainer liquid collection deposits and filters, spray vaporific suction strainer liquid by suction strainer liquid nozzle pipe 3, to the abundant blended absorbent of acidic materials adverse current in the tail gas of discharging.Cloud filter screen 7 filters the suction strainer liquid of the salt compounds, tail gas solid particulate matter and the interception atomization that generate in absorption reaction.The salt compounds generating and the alkali lye that does not absorb acidic materials enter into suction strainer liquid sump 11, and the strainer filtering that the salt compounds of crystallization is deposited in tank 10 by suction strainer liquid collection falls, and the suction strainer liquid after filtration is pumped by suction strainer liquid pump 8, continues to recycle.
Tail gas absorbs the maintenance of filter cleaner:
(1) cloud filter screen 7: unload absorption filter cleaner from outlet pipe, open bolt, take out cloud filter screen 7 and clean or change.
(2) suction strainer liquid sump 11 and suction strainer liquid collection are deposited tank 10: regularly inject that tap water soaks and wash cycles.
(3) phenolphthalein indicator: monitoring shows the variation of the concentration of suction strainer liquid using phenolphthalein as indicator, and the phenolphthalein of trace is shown in red in alkali lye, in the time that redness is not obvious or become blue, needs to change alkali lye, can inject at this moment clear water wash cycles.
(4) suction strainer fluid exchange: change suction strainer liquid and need deposit tank 10 upper openings injections from suction strainer liquid sump 11 and suction strainer liquid collection.Suction strainer liquid integrates the salt compounds of depositing in tank 11 solid particulate matter piled up and crystallization as dirt, deposits tank 10 belows discharge from suction strainer liquid collection.
(5) preparation of suction strainer liquid: the NaOH aqueous slkali that suction strainer liquid compound concentration is 5~10%, adds micro-defoamer and micro-phenolphthalein reagent.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technological scheme of the present invention, those skilled in the art do not need to pay various amendments that creative work can make or distortion still in protection scope of the present invention.
Claims (10)
1. the vehicle exhaust that suction strainer liquid recycles absorbs a filter cleaner, it is characterized in that, comprises one-level suction filter parts and the secondary suction filter parts of hollow; One end of described one-level suction filter parts is fixed to the position of the relief opening of automobile exhaust pipe periphery by fixing device, other one end of described one-level suction filter parts is connected on secondary suction filter parts by suction filter link; In described one-level suction filter parts, be provided with the device for absorbing tail gas that can recycle, in described secondary suction filter parts, be provided with tail gas filter.
2. the vehicle exhaust that a kind of suction strainer liquid as claimed in claim 1 recycles absorbs filter cleaner, it is characterized in that, described device for absorbing tail gas comprises that suction strainer liquid collection deposits tank, described suction strainer liquid collection is deposited tank and is connected with suction strainer liquid pump by inhaling filtrate pipe, described suction strainer liquid pump is connected with several annular suction strainer liquid nozzle pipes, described annular suction strainer liquid nozzle inner tube wall is provided with several nozzle bores, described suction strainer liquid collection is deposited tank and is connected with the suction strainer liquid sump that fills suction strainer liquid, and described suction strainer liquid sump is arranged on the bottom of secondary suction filter parts.
3. the vehicle exhaust that a kind of suction strainer liquid as claimed in claim 2 recycles absorbs filter cleaner, it is characterized in that, described suction strainer liquid collection is deposited tank inside and is provided with filter screen.
4. the vehicle exhaust that a kind of suction strainer liquid as claimed in claim 2 recycles absorbs filter cleaner, it is characterized in that, described nozzle bore is needle-like nozzle bore.
5. the vehicle exhaust that a kind of suction strainer liquid as claimed in claim 1 recycles absorbs filter cleaner, it is characterized in that, described fixing device is reducing clip, between described one-level suction filter parts and automobile exhaust pipe, is provided with seal ring.
6. the vehicle exhaust that a kind of suction strainer liquid as claimed in claim 1 recycles absorbs filter cleaner, it is characterized in that, described tail gas filter comprises several cloud filter screens, and the edge of described cloud filter screen is fixed on the inwall of secondary suction filter parts; Described cloud filter screen is the filter screen of nylon or Stainless Steel Cloth.
7. the vehicle exhaust that a kind of suction strainer liquid as claimed in claim 2 recycles absorbs filter cleaner, it is characterized in that, described suction strainer liquid pump is fixed on the outside of one-level suction filter parts, suction strainer liquid delivery side of pump by connection by metal hose on nozzle pipe, suction strainer liquid pump connects taillight power supply, directly controls the work of suction strainer liquid pump by vehicle switch.
8. the vehicle exhaust that a kind of suction strainer liquid as claimed in claim 1 recycles absorbs filter cleaner, it is characterized in that, described one-level suction filter parts and secondary suction filter parts are stainless steel material.
9. the vehicle exhaust that a kind of suction strainer liquid as described in above-mentioned arbitrary claim recycles absorbs the method for work of filter cleaner, it is characterized in that, comprises the steps:
Step (1): automobile starting, suction strainer liquid pump is started working, the suction strainer liquid being stored in suction strainer liquid sump is drawn by suction strainer liquid pump, first the collection of depositing tank through suction strainer liquid collection is deposited and is filtered, then by the built-in some suction strainer liquid nozzle pipes of one-level suction filter parts, drench vaporific ejection suction strainer liquid finally by nozzle bore, described suction strainer liquid and vehicle exhaust counter current contacting, fully absorb the acidic materials in tail gas;
Step (2): several cloud filter screens that secondary suction filter parts are built-in, the salt compounds generating during filtration absorption one-level suction filter components interior alkali lye reacts with the acidic materials in tail gas, the suction strainer liquid of tail gas solid particulate matter and interception atomization;
Step (3): the suction strainer liquid that is blocked atomization is collected by suction strainer liquid sump again, crystal salt compounds in suction strainer liquid and PM2.5 solid particulate matter enter suction strainer liquid collection and deposit tank, the filter screen that suction strainer liquid collection is deposited in tank filters described crystal salt compounds and PM2.5 solid particulate matter, ensure the normal operation of suction strainer liquid pump, alkali lye in suction strainer liquid sump after filtering is under the effect of suction strainer liquid pump, again spray from suction strainer liquid nozzle pipe with vaporific through inhaling filtrate pipe, continue circulation and absorb the acidic materials in tail gas.
10. method as claimed in claim 9, is characterized in that, the suction strainer liquid in described step (1) is that concentration is 5~10% NaOH aqueous slkali; In described suction strainer liquid sump, place phenolphthalein as indicator, according to the change in color of phenolphthalein, judge whether suction strainer liquid sump will change suction strainer liquid.
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CN201410172130.3A CN103925048A (en) | 2014-04-28 | 2014-04-28 | Automobile exhaust suction filter with suction filtrate recycling function and work method thereof |
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CN201410172130.3A CN103925048A (en) | 2014-04-28 | 2014-04-28 | Automobile exhaust suction filter with suction filtrate recycling function and work method thereof |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107246304A (en) * | 2017-05-16 | 2017-10-13 | 李泽邦 | Automobile exhaust gas processing apparatus and processing method |
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CN101543723A (en) * | 2009-05-08 | 2009-09-30 | 大连汪洋环境工程有限公司 | Device and process for processing nitrogen-oxide waste gas containing acidic gas |
JP2011132949A (en) * | 2009-12-23 | 2011-07-07 | Ford Global Technologies Llc | Method and device for exhaust emission control |
CN202039924U (en) * | 2011-03-04 | 2011-11-16 | 林平 | Waste gas purification device of diesel internal combustion engine |
CN203891971U (en) * | 2014-04-22 | 2014-10-22 | 济南大学 | Automobile tail gas absorbing filter capable of recycling suction filtrate |
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Patent Citations (5)
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JP4196573B2 (en) * | 2002-03-20 | 2008-12-17 | トヨタ自動車株式会社 | Exhaust gas purification method and purification device for internal combustion engine |
CN101543723A (en) * | 2009-05-08 | 2009-09-30 | 大连汪洋环境工程有限公司 | Device and process for processing nitrogen-oxide waste gas containing acidic gas |
JP2011132949A (en) * | 2009-12-23 | 2011-07-07 | Ford Global Technologies Llc | Method and device for exhaust emission control |
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Application publication date: 20140716 |