CN107288712A - Adjust the exhaust gas filter of the good purification of tail gas resistance - Google Patents

Adjust the exhaust gas filter of the good purification of tail gas resistance Download PDF

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Publication number
CN107288712A
CN107288712A CN201610199729.5A CN201610199729A CN107288712A CN 107288712 A CN107288712 A CN 107288712A CN 201610199729 A CN201610199729 A CN 201610199729A CN 107288712 A CN107288712 A CN 107288712A
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CN
China
Prior art keywords
exhaust gas
ceramic honeycomb
rose box
screen pack
carrier
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
CN201610199729.5A
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Chinese (zh)
Inventor
华玉娣
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610199729.5A priority Critical patent/CN107288712A/en
Publication of CN107288712A publication Critical patent/CN107288712A/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
    • 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
    • F01N3/022—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
    • F01N3/0222—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 the structure being monolithic, 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
    • 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
    • F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
    • 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
    • F01N3/031—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 having means for by-passing filters, e.g. when clogged or during cold engine start
    • 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
    • F01N3/0821—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
    • F01N3/0857—Carbon oxides
    • 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
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/10—Carbon or carbon oxides
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/12—Hydrocarbons
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14—Nitrogen oxides

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

The present invention relates to a kind of exhaust gas filter for the good purification for adjusting tail gas resistance.It includes Rose Box（1）, standby carrier（9）, cover plate（10）, supporting plate（11）, stage clip（12）And axle（13）, Rose Box（1）It is interior to be disposed with the first screen pack along airflow direction（2）, the first ceramic honeycomb carrier（3）, the second ceramic honeycomb carrier（7）With the second screen pack（8）.A kind of exhaust gas filter for the good purification for adjusting tail gas resistance of the present invention, under the filtering of the first screen pack, the first ceramic honeycomb carrier, the second ceramic honeycomb carrier and the second screen pack level Four, CO is reacted into by tail gas2、H2O、N2And O2, while the micropore on next door can effectively filter the black smoke particle in waste gas, and black smoke particle can be burned off in the presence of catalyst coat, and the pressure in Rose Box can be adjusted at any time, it is ensured that the stable operation of engine.

Description

Adjust the exhaust gas filter of the good purification of tail gas resistance
Technical field
The present invention relates to a kind of exhaust gas filter for the good purification for adjusting tail gas resistance, for purifying vehicle exhaust. Belong to automobile equipment technical field.
Background technology
At present, common car tail-gas filter, is all much to be expelled directly out without filtering, otherwise be exactly filter It is improper, it is easy to lead and put air pollution and noise pollution；Particularly, the automobile of Diesel engine is equipped with, due to diesel engine Contain black smoke particle in the tail gas of machine, existing exhaust gas filter can not effectively filter black smoke particle, can so cause environment dirty Dye.
Exhaust gas filter could be discharged after being handled, after long-time use, have some non-renewable impurity to adhere to On the inwall of filtration supports, increase the resistance of exhaust emissions, can so cause the power drop of engine, there is potential safety hazard.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of tail gas for the good purification for adjusting tail gas resistance Filter, this exhaust gas filter can also filter black smoke particle while CO, HC, NOx pernicious gas in filtering vehicle exhaust, And black smoke particle can progressively burn and aoxidize at high temperature；Pressure in Rose Box can be adjusted at any time so that exhaust emissions leads to Freely, the power of engine is not interfered with.
The object of the present invention is achieved like this：
A kind of exhaust gas filter for the good purification for adjusting tail gas resistance, including Rose Box, are characterized in：The Rose Box is in The first screen pack, the first ceramic honeycomb carrier, the second ceramic honeycomb are disposed with cylinder, Rose Box along airflow direction to carry Body and the second screen pack, first ceramic honeycomb carrier are identical with the second ceramic honeycomb carrier structure, and shape and Rose Box Correspondence, the first ceramic honeycomb carrier is densely covered with stomata in the axial direction, and one end of the stomata is opening, and the other end is provided with envelope Stifled face, the closure face and open space arrangement, the two neighboring stomata are provided with next door, next door and are provided with cellular Be coated with catalyst coat on micropore, next door, the exhaust gas filter also include standby carrier, cover plate, supporting plate, stage clip and Axle, standby carrier is arranged side by side with ceramic honeycomb carrier, and one end of axle is offseted by supporting plate with Rose Box, the other end of axle with Cover plate is connected, and the offgas outlet end of cover plate and standby carrier coordinates, and stage clip is set on axle, and its one end offsets with cover plate, another The inwall with Rose Box is held to offset.
A kind of exhaust gas filter for the good purification for adjusting tail gas resistance of the present invention, the hole count of its stomata is 600 holes/flat Square inch.
A kind of exhaust gas filter for the good purification for adjusting tail gas resistance of the present invention, the thickness in its next door for 0.13 ~ 0.14mm。
A kind of exhaust gas filter for the good purification for adjusting tail gas resistance of the present invention, its first screen pack is using an oxidation Copper product is made.
A kind of exhaust gas filter for the good purification for adjusting tail gas resistance of the present invention, its special second screen pack is using activity Carbon Materials are made.
Compared with prior art, the beneficial effects of the invention are as follows：
A kind of exhaust gas filter for the good purification for adjusting tail gas resistance of the present invention, in the first screen pack, the first ceramic honeycomb Under carrier, the second ceramic honeycomb carrier and the filtering of the second screen pack level Four, by the tail gas that main component is CO, HC, NOx, reaction Into CO2、H2O、N2And O2, while the micropore on next door can effectively filter the black smoke particle in waste gas, and in the work of catalyst coat It can be burned off with lower black smoke particle, further increase tail gas clean-up effect；When the pressure in Rose Box exceedes permissible value, This pressure can push up plate of uncapping, and tail gas is discharged from standby carrier, so as to solve the problem of exhaust emissions resistance is big so that engine Stable operation.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the exhaust gas filter for the good purification for adjusting tail gas resistance of the present invention.
Fig. 2 is Fig. 1 left view.
Fig. 3 is the schematic cross-section of the first ceramic honeycomb carrier of the present invention.
Fig. 4 is the partial axial section figure of the first ceramic honeycomb carrier of the present invention.
Fig. 5 is the structural representation in the next door of the first ceramic honeycomb carrier of the present invention.
The enlarged drawing that Fig. 6 is A in Fig. 1.
In figure：
Rose Box 1,
First screen pack 2,
First ceramic honeycomb carrier 3,
Stomata 3.1,
Closure face 3.2,
Next door 3.3,
Micropore 3.4,
Catalyst coat 3.5
Opening 3.6,
Inlet exhaust gas 4,
Offgas outlet 5,
Tail gas 6,
Second ceramic honeycomb carrier 7,
Second screen pack 8,
Standby carrier 9,
Cover plate 10,
Supporting plate 11,
Stage clip 12,
Axle 13.
Embodiment
Referring to Fig. 1-6, the present invention relates to a kind of exhaust gas filter for the good purification for adjusting tail gas resistance, it included Filter box 1, the first screen pack 2, the first ceramic honeycomb carrier 3, the second ceramic honeycomb carrier 7 and the second screen pack 8, Rose Box 1 Left end is inlet exhaust gas 4, and right-hand member is offgas outlet 5, first screen pack 2, first the 3, second ceramic honeybee of ceramic honeycomb carrier The screen pack 8 of nest carrier 7 and second is arranged in Rose Box 1, and the first screen pack 2 is at inlet exhaust gas 4, and the second screen pack 8 is leaned on At nearly offgas outlet 5, the Rose Box 1 is in cylinder, the structure of the honeycomb substrate 7 of the first ceramic honeycomb carrier 3 and second It is identical, and shape is corresponding with crossing filtering case 1, the first ceramic honeycomb carrier 3 is densely covered with stomata 3.1, the stomata in the axial direction 3.1 one end is opening 3.6, and the other end is provided with closure face 3.2, the closure face 3.2 and the arranged for interval of opening 3.6, described Two neighboring stomata 3.1, which is provided with next door 3.3, next door 3.3, to be provided with cellular micropore 3.4, is coated with and is urged on next door 3.3 Agent coating 3.5.
Wherein, the hole count of stomata 3.1 is 600 holes/square inch, and the thickness in next door 3.3 is 0.13 ~ 0.14mm.
First screen pack 2 is made of copper monoxide material, and the second screen pack 8 is made of absorbent charcoal material.By There is very strong oxidisability in copper monoxide, so when the carbon monoxide with reproducibility is run into moment will be carried out to it Oxidation, produce and do not pollute the carbon dioxide of air, whole process is exactly a redox process, the second screen pack 8 Can be to the first screen pack 2 and the untreated CO gas of the second ceramic honeycomb carrier 7 for the screen pack with activated carbon Adsorbed.
The filter also includes standby carrier 9, cover plate 10, supporting plate 11, stage clip 12 and axle 13, standby carrier 9 and pottery Porcelain honeycomb substrate 3 is arranged side by side, and one end of axle 13 is offseted by supporting plate 11 with Rose Box 1, the other end and the cover plate 10 of axle 13 Connection, the offgas outlet of cover plate 10 and standby carrier 9 coordinates, and stage clip 12 is set on axle 13, and its one end offsets with cover plate 10, separately One end and the inwall of Rose Box 1 offset.
Under normal circumstances, cover plate 10 seals the offgas outlet of standby carrier 9, when the pressure in Rose Box 1 exceedes permissible value When, this pressure can push up plate 10 of uncapping, and tail gas is discharged from standby carrier 9, so as to solve the problem of exhaust emissions resistance is big so that Engine stabilizer is run.
Operation principle：The present invention is fabricated to honeycomb ceramic carrier using cordierite, and is built in diesel engine vent gas purification In device, the waste gas inlet exhaust gas 4 with black smoke particle of Diesel engine discharge enters, by the one-level mistake of the first screen pack 2 Filter, carries out secondary filtration subsequently into the first ceramic honeycomb carrier 3, enters from the opening 3.6 of stomata 3.1, because stomata 3.1 exists One end is opening 3.6, and is then closure face 3.2 in the other end, therefore waste gas can be by the next door 3.3 with micropore 3.4, then Discharged from the opening 3.6 of adjacent air holes 3.1, because the diameter of black smoke particle is big compared with micropore 3.4, therefore the black smoke particle in waste gas It will be caught by filtering on next door 3.3, air-flow is then passed through from micropore 3.4, the waste gas discharged from the first ceramic honeycomb carrier 3 enters Second ceramic honeycomb carrier 7, carries out three-stage filtration, the same secondary filtration of work principle of filter, from giving up that the second ceramic honeycomb carrier 7 is discharged Gas enters the second screen pack 8 and carries out level Four filtering, and the carbon monoxide of residual is adsorbed.
Active rare earth of the catalyst coat 3.5 containing noble metal, Main Ingredients and Appearance has Pt, Pd, Rh, Al2O3、Ce、La、 Zr, Cu, Mn, the waste gas of diesel combustion（The predominantly pernicious gas such as CO, HC, NOx）During through micropore 3.4, next door is coated Catalyst coat 3.5 on 3.3 will strengthen CO, HC, NOxThe activity of three kinds of gas, promotes it to carry out certain oxidationreduction Reaction is learned, wherein CO is oxidized to colourless nontoxic carbon dioxide at high temperature, and HC compounds resolve into water at high temperature （H2O）And carbon dioxide, NOxIt is reduced into nitrogen and oxygen.
When diesel exhaust gas temperature reaches 375 degrees Celsius, in the presence of catalyst coat 3.5, on next door 3.3 Black smoke particle can progressively burn and aoxidize, and the purifying rate of black smoke particle about reaches more than 85%, when reaction temperature reaches that 500 take the photograph Catalyst and black smoke particle reaction so as to burn completely when family name spends（Catalysis burning）, now the purifying rate of black smoke particle is reachable More than 90%.

Claims (5)

1. a kind of exhaust gas filter for the good purification for adjusting tail gas resistance, including Rose Box（1）, it is characterised in that：It is described Rose Box（1）In cylinder, Rose Box（1）It is interior to be disposed with the first screen pack along airflow direction（2）, the first ceramic honeycomb carry Body（3）, the second ceramic honeycomb carrier（7）With the second screen pack（8）, first ceramic honeycomb carrier（3）With the second ceramic honeybee Nest carrier（7）Structure is identical, and shape and Rose Box（1）Correspondence, the first ceramic honeycomb carrier（3）Gas is densely covered with the axial direction Hole（3.1）, the stomata（3.1）One end be opening（3.6）, the other end is provided with closure face（3.2）, the closure face （3.2）And opening（3.6）Arranged for interval, the two neighboring stomata（3.1）It is provided with next door（3.3）, next door（3.3）On be provided with In cellular micropore（3.4）, next door（3.3）On be coated with catalyst coat（3.5）, the exhaust gas filter also includes standby Carrier（9）, cover plate（10）, supporting plate（11）, stage clip（12）And axle（13）, standby carrier（9）With ceramic honeycomb carrier（3）Side by side Arrangement, axle（13）One end pass through supporting plate（11）With Rose Box（1）Offset, axle（13）The other end and cover plate（10）Connection, Cover plate（10）With standby carrier（9）Offgas outlet end coordinate, stage clip（12）It is set in axle（13）On, its one end and cover plate（10） Offset, the other end and Rose Box（1）Inwall offset.
2. a kind of exhaust gas filter of good purification for adjusting tail gas resistance according to claim 1, it is characterised in that： The stomata（3.1）Hole count be 600 holes/square inch.
3. a kind of exhaust gas filter of good purification for adjusting tail gas resistance according to claim 1 or 2, its feature exists In：The next door（3.3）Thickness be 0.13 ~ 0.14mm.
4. a kind of exhaust gas filter of good purification for adjusting tail gas resistance according to claim 1, it is characterised in that： First screen pack（2）It is made of copper monoxide material.
5. a kind of exhaust gas filter of good purification for adjusting tail gas resistance according to claim 1, it is characterised in that： Second screen pack（8）It is made of absorbent charcoal material.
CN201610199729.5A 2016-04-05 2016-04-05 Adjust the exhaust gas filter of the good purification of tail gas resistance Pending CN107288712A (en)

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CN201610199729.5A CN107288712A (en) 2016-04-05 2016-04-05 Adjust the exhaust gas filter of the good purification of tail gas resistance

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CN201610199729.5A CN107288712A (en) 2016-04-05 2016-04-05 Adjust the exhaust gas filter of the good purification of tail gas resistance

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Publication Number Publication Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110307065A (en) * 2018-03-20 2019-10-08 富尔西亚排气系统公司 For the heating purifying part of cleaning of off-gas and the purification device with this purifying part
CN114320551A (en) * 2021-11-10 2022-04-12 枣庄科技职业学院 Automobile exhaust muffler device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110307065A (en) * 2018-03-20 2019-10-08 富尔西亚排气系统公司 For the heating purifying part of cleaning of off-gas and the purification device with this purifying part
CN114320551A (en) * 2021-11-10 2022-04-12 枣庄科技职业学院 Automobile exhaust muffler device

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