CN107542543A - The anti-oxidant exhaust gas filter of environment-friendly type - Google Patents
The anti-oxidant exhaust gas filter of environment-friendly type Download PDFInfo
- Publication number
- CN107542543A CN107542543A CN201610489286.3A CN201610489286A CN107542543A CN 107542543 A CN107542543 A CN 107542543A CN 201610489286 A CN201610489286 A CN 201610489286A CN 107542543 A CN107542543 A CN 107542543A
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- China
- Prior art keywords
- exhaust gas
- environment
- friendly type
- screen pack
- gas filter
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- 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.)
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Filtering Materials (AREA)
Abstract
The present invention relates to a kind of anti-oxidant exhaust gas filter of environment-friendly type.It includes Rose Box（1）, the Rose Box（1）Inside it is provided with the first screen pack（2）, ceramic honeycomb carrier（3）With the second screen pack（7）, ceramic honeycomb carrier surface is coated with antioxidant coating.A kind of anti-oxidant exhaust gas filter of environment-friendly type of the present invention, ceramic honeycomb carrier can be anti-oxidant, under screen pack and ceramic honeycomb carrier double-filtration, by the tail gas that main component is CO, HC, NOx, react into CO2、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, further increase tail gas clean-up effect.
Description
Technical field
The present invention relates to a kind of anti-oxidant exhaust gas filter of environment-friendly type, for purifying vehicle exhaust.Belong to automobile equipment skill
Art field.
Background technology
At present, common car tail-gas filter, it is expelled directly out without filtering, otherwise is 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.
Existing honeycomb substrate can not be effectively anti-oxidant, can not meet the needs of client.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of anti-oxidant exhaust gas filter of environment-friendly type, this tail gas
Filter can also filter black smoke particle while CO, HC, NOx pernicious gas in filtering vehicle exhaust, and black at high temperature
Smoke particle can progressively burn and aoxidize, and honeycomb substrate can be effectively anti-oxidant.
The object of the present invention is achieved like this：
A kind of anti-oxidant exhaust gas filter of environment-friendly type, including Rose Box, it is characterised in that：The Rose Box interior edge airflow direction according to
Secondary to be provided with the first screen pack, ceramic honeycomb carrier and the second screen pack, the section of the Rose Box includes the first arc-shaped edges, the
Two arc-shaped edges, the first hypotenuse and the second hypotenuse, first arc-shaped edges, the second hypotenuse, the second arc-shaped edges and the first hypotenuse are successively
Joining end to end, connecting place uses round-corner transition, and the ceramic honeycomb carrier is densely covered with stomata in the axial direction, and the one of the stomata
Hold as opening, the other end is provided with closure face, the closure face and open space arrangement, the two neighboring stomata be provided with every
Wall, it is provided with next door in cellular micropore, catalyst coat, the surface coating of the ceramic honeycomb carrier is coated with next door
Have an antioxidant coating, the antioxidant coating include 11-14wt% chromium, 11-14wt% cobalt, 7.5-9.5wt% aluminium,
0.20-0.60wt% yttrium, 0.10-0.50wt% hafnium, 0.10-0.30wt% silicon, 0.10-0.20wt% zirconium and surplus
Nickel.
A kind of anti-oxidant exhaust gas filter of environment-friendly type of the present invention, the hole count of its stomata is 600 holes/square inch.
A kind of anti-oxidant exhaust gas filter of environment-friendly type of the present invention, the thickness in its next door is 0.13 ~ 0.14mm.
A kind of anti-oxidant exhaust gas filter of environment-friendly type of the present invention, its first screen pack are made of copper monoxide material.
A kind of anti-oxidant exhaust gas filter of environment-friendly type of the present invention, its special second screen pack are made of absorbent charcoal material.
Compared with prior art, the beneficial effects of the invention are as follows：
A kind of anti-oxidant exhaust gas filter of environment-friendly type of the present invention, the three of the first screen pack, ceramic honeycomb carrier and the second filtering
Under level filtering, by the tail gas that main component is CO, HC, NOx, CO is reacted into2、H2O、N2And O2, while the micropore on next door can have
Black smoke particle in effect filtering waste gas, and black smoke particle can be burned off in the presence of catalyst coat, be further increased
Tail gas clean-up effect；Ceramic honeycomb carrier surface is coated with antioxidant coating, can effectively prevent ceramic honey comb surface to be oxidized.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the anti-oxidant exhaust gas filter of environment-friendly type of the present invention.
Fig. 2 is Fig. 1 left view.
Fig. 3 is the schematic cross-section of the ceramic honeycomb carrier of the present invention.
Fig. 4 is the partial axial section figure of the ceramic honeycomb carrier of the present invention.
Fig. 5 is the structural representation in the next door of the ceramic honeycomb carrier of the present invention.
In figure：
Rose Box 1,
First arc-shaped edges 1.1,
Second arc-shaped edges 1.2,
First hypotenuse 1.3,
Second hypotenuse 1.4,
First screen pack 2,
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 screen pack 7.
Embodiment
Referring to Fig. 1-5, the present invention relates to a kind of anti-oxidant exhaust gas filter of environment-friendly type, and it is filtered including Rose Box 1, first
Net 2, the screen pack 7 of ceramic honeycomb carrier 3 and second, the left end of Rose Box 1 is inlet exhaust gas 4, and right-hand member is offgas outlet 5, described
First screen pack 2, the screen pack 7 of ceramic honeycomb carrier 3 and second are arranged in Rose Box 1, and the first screen pack 2 is close to inlet exhaust gas
At 4, for the second screen pack 7 at offgas outlet, the Rose Box 1 includes the first arc-shaped edges 1.1, the second arc-shaped edges 1.2, first
The hypotenuse 1.4 of hypotenuse 1.3 and second, first arc-shaped edges 1.1, the second hypotenuse 1.4, the second arc-shaped edges 1.2 and the first hypotenuse 1.3
Join end to end successively, connecting place uses round-corner transition, and the shape of the ceramic honeycomb carrier 3 is corresponding with Rose Box 1, and ceramic honeybee
Nest carrier 3 is densely covered with stomata 3.1 in the axial direction, and one end of the stomata 3.1 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, the two neighboring stomata 3.1 are provided with next door 3.3, on next door 3.3
It is in cellular micropore 3.4 to be provided with, and catalyst coat 3.5 is coated with next door 3.3.
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 7 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 7
The first screen pack 2 and 3 untreated CO gas of ceramic honeycomb carrier can be carried out for the screen pack with activated carbon
Absorption.
The surface of the ceramic honeycomb carrier is coated with antioxidant coating, and the antioxidant coating includes 11-14wt%'s
Chromium, 11-14wt% cobalt, 7.5-9.5wt% aluminium, 0.20-0.60wt% yttrium, 0.10-0.50wt% hafnium, 0.10-0.30wt%
Silicon, 0.10-0.20wt% zirconium and the nickel of surplus.It can be noted that there is the aluminium reduced to contain for it from above-mentioned composition
Amount, this reduces SRZ formation in the alloy for be easily formed SRZ.
More aluminium may produce reaction zone problem in antioxidant coating, and less aluminium can not provide enough aluminium
Maintain good protection class.Less active element（Y, Hf, Si and Zr）Oxidation kinetics may be improved, and it is more active
Element may result in short-circuit oxidation.More chromium may reduce leading phase, γ phases（gamma prime）, and less chromium
Corrosion and heat resistant may be damaged.Extremely suitable composition for antioxidant coating is located exactly among above range.
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, secondary filtration is carried out subsequently into ceramic honeycomb carrier 3, tail gas 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 then passes through from micropore 3.4, and the waste gas discharged from ceramic honeycomb carrier 3 enters second
Screen pack 7 carries out three-stage filtration, and the carbon monoxide of residual is adsorbed.
Active rare earth of the catalyst coat 3.5 containing noble metal, Main Ingredients and Appearance have 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, it is promoted 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%, is taken the photograph when reaction temperature reaches 500
Catalyst and black smoke particle reaction when family name spends are so that completely burned is fallen（Catalysis burning）, now the purifying rate of black smoke particle is reachable
More than 90%.
Claims (5)
1. a kind of anti-oxidant exhaust gas filter of environment-friendly type, including Rose Box（1）, it is characterised in that：The Rose Box（1）Interior edge gas
Stream direction is disposed with the first screen pack（2）, ceramic honeycomb carrier（3）With the second screen pack（7）, the Rose Box（1）'s
Section includes the first arc-shaped edges（1.1）, the second arc-shaped edges（1.2）, the first hypotenuse（1.3）With the second hypotenuse（1.4）, described first
Arc-shaped edges（1.1）, the second hypotenuse（1.4）, the second arc-shaped edges（1.2）With the first hypotenuse（1.3）Join end to end successively, connecting place is adopted
With round-corner transition, the ceramic honeycomb carrier（3）Stomata is densely covered with the axial direction（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 is described adjacent
Two stomatas（3.1）It is provided with next door（3.3）, next door（3.3）On be provided with cellular micropore（3.4）, next door（3.3）Upper painting
It is covered with catalyst coat（3.5）, the ceramic honey comb surface is coated with antioxidant coating, and the antioxidant coating includes 11-
14wt% chromium, 11-14wt% cobalt, 7.5-9.5wt% aluminium, 0.20-0.60wt% yttrium, 0.10-0.50wt% hafnium, 0.10-
The nickel of 0.30wt% silicon, 0.10-0.20wt% zirconium and surplus.
A kind of 2. anti-oxidant exhaust gas filter of environment-friendly type according to claim 1, it is characterised in that：The stomata（3.1）
Hole count be 600 holes/square inch.
A kind of 3. anti-oxidant exhaust gas filter of environment-friendly type according to claim 1 or 2, it is characterised in that：The next door
（3.3）Thickness be 0.13 ~ 0.14mm.
A kind of 4. anti-oxidant exhaust gas filter of environment-friendly type according to claim 1, it is characterised in that：First screen pack
（2）It is made of copper monoxide material.
A kind of 5. anti-oxidant exhaust gas filter of environment-friendly type according to claim 1, it is characterised in that：Second screen pack
（7）It is made of absorbent charcoal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610489286.3A CN107542543A (en) | 2016-06-29 | 2016-06-29 | The anti-oxidant exhaust gas filter of environment-friendly type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610489286.3A CN107542543A (en) | 2016-06-29 | 2016-06-29 | The anti-oxidant exhaust gas filter of environment-friendly type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107542543A true CN107542543A (en) | 2018-01-05 |
Family
ID=60962954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610489286.3A Pending CN107542543A (en) | 2016-06-29 | 2016-06-29 | The anti-oxidant exhaust gas filter of environment-friendly type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107542543A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195637A (en) * | 2019-05-14 | 2019-09-03 | 重庆鹏锦塑料有限公司 | A kind of automobile exhaust gas purifying installation |
-
2016
- 2016-06-29 CN CN201610489286.3A patent/CN107542543A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195637A (en) * | 2019-05-14 | 2019-09-03 | 重庆鹏锦塑料有限公司 | A kind of automobile exhaust gas purifying installation |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180105 |
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| WD01 | Invention patent application deemed withdrawn after publication |