CN111980786A - Split-flow type tail gas purification device for energy conservation and emission reduction of automobile - Google Patents

Split-flow type tail gas purification device for energy conservation and emission reduction of automobile Download PDF

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Publication number
CN111980786A
CN111980786A CN202010880558.9A CN202010880558A CN111980786A CN 111980786 A CN111980786 A CN 111980786A CN 202010880558 A CN202010880558 A CN 202010880558A CN 111980786 A CN111980786 A CN 111980786A
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Prior art keywords
purification
shell
split
energy conservation
emission reduction
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CN202010880558.9A
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Chinese (zh)
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CN111980786B (en
Inventor
宋波
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Airy Automotive Technology (Harbin) Co.,Ltd.
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Individual
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    • 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
    • F01N3/10—Exhaust 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
    • F01N3/24—Exhaust 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 characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2825—Ceramics
    • F01N3/2828—Ceramic multi-channel monoliths, e.g. honeycombs
    • 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
    • F01N13/0097—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 the purifying devices are arranged in a single housing
    • 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
    • F01N13/14—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 thermal insulation
    • 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
    • F01N3/01—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust by means of electric or electrostatic separators
    • 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
    • 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
    • F01N3/022—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • 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
    • 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
    • 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
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • 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
    • F01N3/0892—Electric or magnetic treatment, e.g. dissociation of noxious components
    • 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
    • F01N3/10—Exhaust 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
    • F01N3/24—Exhaust 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 characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/04—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an electric, e.g. electrostatic, device other than a heater
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/05—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a magnetic, e.g. electromagnetic, device other than a valve
    • 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
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
    • 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
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/12—Combinations of different methods of purification absorption or adsorption, and catalytic conversion
    • 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
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/14—Combinations of different methods of purification absorption or adsorption, and filtering
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/06—Ceramic, e.g. monoliths
    • 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
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Ceramic Engineering (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

The invention relates to a shunting type tail gas purification device for energy conservation and emission reduction of an automobile, which comprises a shell, wherein an air inlet is formed in the front end of the shell, an air outlet is formed in the rear end of the shell, a plurality of mutually independent purification modules are arranged in the shell, each purification module forms a purification flow channel, an air distribution device is arranged in the shell and used for isolating the air inlet from the interior of the shell, a plurality of air distribution units are arranged on the air distribution device, an alumina ceramic purification assembly is arranged at the rear end of each air distribution unit, the rear end of the alumina ceramic purification assembly is connected with the purification modules, at least one porous ceramic plate is arranged at the rear end of the purification module, and the porous ceramic plate is arranged at the rear end of the shell and at one end of the air outlet. The invention adopts a multi-channel purification mode, a plurality of mutually independent purification modules are arranged in the shell, each purification module forms a purification flow channel, and the purification flow channels form distributed multi-stage purification.

Description

Split-flow type tail gas purification device for energy conservation and emission reduction of automobile
Technical Field
The invention relates to the technical field of automobile exhaust treatment, in particular to a shunting exhaust purification device, and specifically relates to a shunting exhaust purification device for energy conservation and emission reduction of an automobile.
Background
With the increase of private cars in China, for example, cities with more than two lines are taken as examples, the retention capacity of basic cars reaches about 300 thousands, the car exhaust accelerates the environmental pollution, and in order to effectively treat the car exhaust, the conventional cars are all provided with three-way catalysts for treating CO and SO in the car exhaust2And the oil mist is purified and then discharged, and the technical means basically adopted is that the oil mist is absorbed by arranging an oil mist absorption sponge, and then CO and SO are absorbed by a catalyst2The reaction is carried out, in the process of catalytic reaction, equivalent aluminum oxide particles are required to be added as a catalyst, the catalytic reaction can cause a large amount of aluminum oxide suspended particles, and the particles are absorbed through ionization, so that the particles can still be discharged in the mode.
Disclosure of Invention
The invention aims to provide a split-flow type tail gas purification device for energy conservation and emission reduction of an automobile, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a split-flow type tail gas purification device for energy conservation and emission reduction of an automobile, which comprises a shell, wherein the front end of the shell is provided with a gas inlet, the rear end of the shell is provided with a gas outlet,
a plurality of mutually independent purification modules are arranged in the shell,
each purification module forms a purification flow channel,
the air distribution device is arranged in the shell and used for isolating the air inlet from the interior of the shell, a plurality of air distribution units are arranged on the air distribution device, the rear end of each air distribution unit is provided with an alumina ceramic purification component, the rear end of the alumina ceramic purification component is connected with the purification module,
the rear end of the purification module is at least provided with a porous ceramic plate,
the porous ceramic plate is arranged at the rear end of the shell and at one end of the air outlet.
Furthermore, the gas distribution device is used for uniformly distributing the automobile exhaust entering from the gas inlet,
the gas distribution device comprises a ceramic plate arranged inside the shell, the ceramic plate isolates the gas inlet from the inside of the shell, a plurality of gas distribution units are arranged on the ceramic plate, and a plurality of gas distribution holes which are uniformly arranged are formed in each gas distribution unit.
Furthermore, the alumina ceramic purification component comprises an alumina ceramic cylinder, a plurality of microporous alumina ceramic partition plates which are arranged at intervals are arranged in the alumina ceramic cylinder, and a purifying agent is sprayed on the outer surface of each microporous alumina ceramic partition plate.
Furthermore, the purification module comprises a first purification unit and a second purification unit which is in butt joint with the first purification unit.
Furthermore, the first purification unit and the second purification unit have the same structure,
including the micropore ceramic barrel, set up and outwards be the bellied oil mist of arc and filter cotton layer in the inside of micropore ceramic barrel, set up and outwards be the bellied active carbon filter screen layer of arc in the inboard cotton layer of oil mist filter, set up and outwards be the bellied POC wire mesh layer of arc in the inside of active carbon filter screen layer.
Furthermore, the oil mist filtering cotton layer comprises an inner-layer metal wire mesh support frame, an outer-layer carbon fiber mesh fastening frame and a plurality of layers of oil mist filtering cotton nets arranged between the metal wire mesh support frame and the carbon fiber mesh fastening frame.
Furthermore, a high-voltage circuit module is arranged at the second purification unit and is electrically connected with the POC metal wire mesh layer arranged in the second purification unit.
Furthermore, a plasma purifier is arranged at the connecting end of the first purifying unit and the alumina ceramic purifying assembly.
Further, a plug of honeycomb porous ceramic is arranged at the air outlet end of the second purification unit.
Further, a heat insulation interlayer is arranged between the shell and the purification module.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts a multi-channel purification mode, a plurality of mutually independent purification modules are arranged in the shell, each purification module forms a purification flow channel, and the purification flow channels form distributed multi-stage purification.
According to the invention, the alumina ceramic purification component is utilized, and comprises an alumina ceramic cylinder, a plurality of microporous alumina ceramic partition plates which are arranged at intervals are arranged in the alumina ceramic cylinder, and a purifying agent is sprayed on the outer surfaces of the microporous alumina ceramic partition plates, so that alumina in the alumina ceramic cylinder and the microporous alumina ceramic partition plates which are arranged at intervals can be used as catalysts, and a large amount of suspended particles cannot be generated in the reaction process.
The invention adopts a purification module to carry out multi-stage purification, the purification module comprises a first purification unit and a second purification unit butted with the first purification unit, the first purification unit and the second purification unit have the same structure, the main difference lies in that the number of layers of the structures arranged in the first purification unit and the second purification unit is different, and the number of layers of each layer of an oil mist filter cotton layer, an active carbon filter screen layer and a POC metal wire mesh layer arranged in the first purification unit is more than that of the layers arranged in the second purification unit, so that the purification is stepped. In the invention, the oil mist filter cotton layer, the activated carbon filter screen layer and the POC metal wire mesh layer are outwards protruded in an arc shape, so that automobile exhaust can be subjected to layer-by-layer permeation filtration by the oil mist filter cotton layer, the activated carbon filter screen layer and the POC metal wire mesh layer, the contact area and the contact time with the automobile exhaust are increased due to the outwards protruded in the arc shape, and multi-stage purification is effectively carried out.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of an alumina ceramic purification assembly according to the present invention;
FIG. 3 is a schematic structural diagram of a second purification unit according to the present invention;
FIG. 4 is a schematic structural view of the gas distribution device of the present invention;
FIG. 5 is a schematic structural view of a microporous alumina ceramic separator according to the present invention.
Detailed Description
Detailed description of the preferred embodimentsreferring to fig. 1-5.
The invention provides a split-flow type tail gas purification device for energy conservation and emission reduction of an automobile, which comprises a shell 10, wherein the front end of the shell 10 is provided with a gas inlet 1, the rear end of the shell 10 is provided with a gas outlet 14,
a plurality of mutually independent purification modules 5 are arranged in the shell 10, and a heat insulation interlayer 11 is arranged between the shell and the purification modules 5; each purification module 5 forms a purification flow channel,
the gas distribution device 2 is arranged in the shell 10 and used for isolating the gas inlet 1 from the inside of the shell 10, a plurality of gas distribution units 20 are arranged on the gas distribution device 2, the gas distribution device 2 comprises a ceramic plate arranged in the shell and used for isolating the gas inlet 1 from the inside of the shell 10, a plurality of gas distribution units 20 are arranged on the ceramic plate, each gas distribution unit 20 is provided with a plurality of uniformly arranged gas distribution holes, the gas distribution device 2 is used for uniformly distributing automobile exhaust entering from the gas inlet, and the plurality of gas distribution units form shunting gas distribution purification,
the rear end of each gas distribution unit 20 is provided with an alumina ceramic purification component 4,
the rear end of the alumina ceramic purification component with purification module 5 connect, foretell the alumina ceramic purification component includes alumina ceramic barrel 3 be provided with the micropore alumina ceramic baffle 32 that a plurality of intervals were laid in the alumina ceramic barrel 3, the surface spraying of micropore alumina ceramic baffle 32 has the purifying agent, the aluminium oxide in the micropore alumina ceramic baffle 32 that alumina ceramic barrel 3 and a plurality of intervals were laid all can regard as the catalyst for the form of catalyst has become the micropore alumina ceramic baffle 32 that a plurality of intervals were laid by traditional granule and the carrier of alumina ceramic barrel 3 formation catalyst, can not produce a large amount of suspended particles in the reaction process. The plasma purifier 4 is arranged at the rear end of the alumina ceramic purification component, and the purpose of the plasma purifier 4 is to degrade through electric breakdown in a plasma magnetic field, so that trace suspended particles generated in a catalytic reaction stage can be adsorbed by the oil mist filter cotton layer 6 at the rear end.
The invention adopts a multi-channel purification mode, a plurality of mutually independent purification modules are arranged in the shell, each purification module 5 forms a purification flow channel, and the purification flow channels form distributed multi-stage purification.
The rear end of the purification module 5 is provided with at least one porous ceramic plate 13,
the porous ceramic plate 13 is disposed at the rear end of the housing and at one end of the air outlet 14.
In the above, the purification module 5 includes a first purification unit 5 and a second purification unit 9 connected to the first purification unit 5, the first purification unit 5 and the second purification unit 9 have the same structure,
including the micropore ceramic barrel, set up and outwards be the bellied oil mist filter pulp layer 6 of arc at the inside of micropore ceramic barrel, set up and outwards be the bellied active carbon filter screen layer 7 of arc at oil mist filter pulp layer 6 inboard, set up and outwards be the bellied POC wire mesh layer 8 of arc inside active carbon filter screen layer 7.
The main difference lies in that the number of layers of the structures arranged in the first purification unit 5 and the second purification unit 9 is different, and the number of layers of the oil mist filter cotton layer 6, the active carbon filter screen layer 7 and the POC metal wire mesh layer 8 arranged in the first purification unit 5 is more than that in the second purification unit, so that the purification is stepped. In the invention, the oil mist filter cotton layer 6, the activated carbon filter screen layer 7 and the POC metal wire mesh layer 8 are outwards protruded in an arc shape, so that automobile exhaust can be subjected to layer-by-layer permeation filtration by the oil mist filter cotton layer 6, the activated carbon filter screen layer 7 and the POC metal wire mesh layer 8, the contact area and the contact time with the automobile exhaust are increased due to the outwards protruded in an arc shape, and multistage purification is effectively performed.
In the foregoing, the oil mist filters cotton layer 6 and includes the wire mesh support frame of inlayer, outer carbon fiber net fastening frame, sets up the multilayer oil mist filter cotton net between wire mesh support frame and carbon fiber net fastening frame, and it guarantees that the oil mist filters cotton layer and can not make the outside bellied structure of arc of laying impaired because of pressure.
In the above, the second purification unit 9 is provided with the high voltage circuit module 15, the high voltage circuit module 15 is electrically connected to the POC metal mesh layer arranged in the second purification unit, the high voltage circuit module passes through the POC metal mesh layer, a small amount of suspended particles generated after the activated carbon filtration pass through ionization absorption, and the suspended particles that are not absorbed are further adsorbed by the plugs 12 and 13 of the honeycomb porous ceramic when passing through the plugs 12 and 13 of the honeycomb porous ceramic.
And the air outlet end of the second purification unit 9 is provided with a plug 12 made of honeycomb porous ceramic, and hydrotalcite is sprayed in the plug of the porous ceramic, so that acidic substances can be effectively adsorbed.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.

Claims (10)

1. A split-flow type tail gas purification device for energy conservation and emission reduction of an automobile comprises a shell, wherein the front end of the shell is provided with a gas inlet, the rear end of the shell is provided with a gas outlet,
a plurality of mutually independent purification modules are arranged in the shell,
each purification module forms a purification flow channel,
the air distribution device is arranged in the shell and used for isolating the air inlet from the interior of the shell, a plurality of air distribution units are arranged on the air distribution device, the rear end of each air distribution unit is provided with an alumina ceramic purification component, the rear end of the alumina ceramic purification component is connected with the purification module,
the rear end of the purification module is at least provided with a porous ceramic plate,
the porous ceramic plate is arranged at the rear end of the shell and at one end of the air outlet.
2. The split-flow exhaust gas purification device for energy conservation and emission reduction of the automobile according to claim 1, wherein the gas distribution device is used for uniformly distributing the automobile exhaust gas entering from the gas inlet,
the gas distribution device comprises a ceramic plate arranged inside the shell, the ceramic plate isolates the gas inlet from the inside of the shell, a plurality of gas distribution units are arranged on the ceramic plate, and a plurality of gas distribution holes which are uniformly arranged are formed in each gas distribution unit.
3. The automobile energy conservation and emission reduction split-flow exhaust gas purification device according to claim 1, wherein the alumina ceramic purification assembly comprises an alumina ceramic cylinder, a plurality of microporous alumina ceramic partition plates are arranged in the alumina ceramic cylinder at intervals, and a purifying agent is sprayed on the outer surface of each microporous alumina ceramic partition plate.
4. The split-flow type tail gas purification device for energy conservation and emission reduction of the automobile according to claim 1, wherein the purification module comprises a first purification unit and a second purification unit which is in butt joint with the first purification unit.
5. The split-flow type tail gas purification device for energy conservation and emission reduction of the automobile according to claim 4, wherein the first purification unit and the second purification unit have the same structure,
including the micropore ceramic barrel, set up and outwards be the bellied oil mist of arc and filter cotton layer in the inside of micropore ceramic barrel, set up and outwards be the bellied active carbon filter screen layer of arc in the inboard cotton layer of oil mist filter, set up and outwards be the bellied POC wire mesh layer of arc in the inside of active carbon filter screen layer.
6. The split-flow type tail gas purification device for energy conservation and emission reduction of the automobile according to claim 5, wherein the oil mist filtering cotton layer comprises an inner metal wire mesh support frame, an outer carbon fiber mesh fastening frame and a plurality of layers of oil mist filtering cotton nets arranged between the metal wire mesh support frame and the carbon fiber mesh fastening frame.
7. The split-flow exhaust gas purification device for energy conservation and emission reduction of the automobile according to claim 4, wherein a high-voltage circuit module is arranged at the second purification unit and is electrically connected with the POC wire mesh layer arranged in the second purification unit.
8. The split-flow type tail gas purification device for energy conservation and emission reduction of the automobile according to claim 4, wherein a plasma purifier is arranged at the connection end of the first purification unit and the alumina ceramic purification component.
9. The split-flow exhaust gas purification device for energy conservation and emission reduction of the automobile according to claim 4, wherein a plug of honeycomb porous ceramics is arranged at the gas outlet end of the second purification unit.
10. The split-flow type tail gas purification device for energy conservation and emission reduction of the automobile according to claim 1, wherein a heat insulation interlayer is arranged between the shell and the purification module.
CN202010880558.9A 2020-08-27 2020-08-27 Split-flow type tail gas purification device for energy conservation and emission reduction of automobile Active CN111980786B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2400584Y (en) * 1999-12-24 2000-10-11 周丰亨 Vehicle exhaust purifying silencer
JP2008309160A (en) * 2003-11-25 2008-12-25 Babcock Hitachi Kk Exhaust emission purifier using particulate matter-containing exhaust emission controlling filter
CN205154304U (en) * 2015-11-17 2016-04-13 史沛丰 Novel car tail gas purifying device
CN207454071U (en) * 2017-11-03 2018-06-05 成都赛伦斯环保科技有限公司 A kind of exhaust gas cleaner using perovskite-based three-way catalyst
CN109958500A (en) * 2017-12-22 2019-07-02 天津雅之远环保科技有限公司 A kind of vehicle exhaust plasma purifier
CN209687578U (en) * 2019-03-14 2019-11-26 黄河科技学院 Automobile tail gas filtering device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2400584Y (en) * 1999-12-24 2000-10-11 周丰亨 Vehicle exhaust purifying silencer
JP2008309160A (en) * 2003-11-25 2008-12-25 Babcock Hitachi Kk Exhaust emission purifier using particulate matter-containing exhaust emission controlling filter
CN205154304U (en) * 2015-11-17 2016-04-13 史沛丰 Novel car tail gas purifying device
CN207454071U (en) * 2017-11-03 2018-06-05 成都赛伦斯环保科技有限公司 A kind of exhaust gas cleaner using perovskite-based three-way catalyst
CN109958500A (en) * 2017-12-22 2019-07-02 天津雅之远环保科技有限公司 A kind of vehicle exhaust plasma purifier
CN209687578U (en) * 2019-03-14 2019-11-26 黄河科技学院 Automobile tail gas filtering device

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