CN107542542A - Without the anti-oxidant exhaust gas filter of black smoke - Google Patents
Without the anti-oxidant exhaust gas filter of black smoke Download PDFInfo
- Publication number
- CN107542542A CN107542542A CN201610489267.0A CN201610489267A CN107542542A CN 107542542 A CN107542542 A CN 107542542A CN 201610489267 A CN201610489267 A CN 201610489267A CN 107542542 A CN107542542 A CN 107542542A
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- CN
- China
- Prior art keywords
- black smoke
- exhaust gas
- screen pack
- next door
- ceramic honeycomb
- 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.)
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
The present invention relates to one kind without the anti-oxidant exhaust gas filter of black smoke.It includes Rose Box（1）, the Rose Box（1）Inside it is provided with screen pack（2）And ceramic honeycomb carrier（3）, screen pack（2）On be provided with oblique backfin（2.1）With the belling of longitudinal direction（2.2）, ceramic honeycomb carrier surface is coated with antioxidant coating.Of the invention a kind of without the anti-oxidant exhaust gas filter of black smoke, ceramic honeycomb carrier energy is anti-oxidant, under screen pack and ceramic honeycomb carrier double-filtration, by the tail gas that main component is CO, HC, NOx, reacts 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 one kind without the anti-oxidant exhaust gas filter of black smoke, 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 by simple filtering, and is equipped with diesel oil hair
The automobile of motivation, contain black smoke particle in its tail gas, existing exhaust gas filter can not effectively filter black smoke particle, can so make
Into environmental pollution, 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 one kind is without the anti-oxidant exhaust gas filter of black smoke, 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：
One kind is characterized in without the anti-oxidant exhaust gas filter of black smoke, including Rose Box：Be provided with the Rose Box screen pack and
Ceramic honeycomb carrier, is provided with the belling of oblique backfin and longitudinal direction on screen pack, and 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.
For one kind of the invention without the anti-oxidant exhaust gas filter of black smoke, the hole count of its stomata is 600 holes/square inch.
For one kind of the invention without the anti-oxidant exhaust gas filter of black smoke, the thickness in its next door is 0.13 ~ 0.14mm.
Compared with prior art, the beneficial effects of the invention are as follows：
It is of the invention a kind of without the anti-oxidant exhaust gas filter of black smoke, will be main under screen pack and ceramic honeycomb carrier double-filtration
Composition is CO, HC, NOx tail gas, reacts into CO2、H2O、N2And O2, while the micropore on next door can be filtered effectively in waste gas
Black smoke particle, and black smoke particle can be burned off in the presence of catalyst coat, further increase tail gas clean-up effect；Pottery
Porcelain honeycomb substrate 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 no anti-oxidant exhaust gas filter of black smoke 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.
Fig. 6 is the structural representation of the screen pack of the present invention.
Fig. 7 is the expanded view of the screen pack of the present invention.
Fig. 8 is the enlarged drawing of A in Fig. 6.
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,
Screen pack 2,
Backfin 2.1,
Belling 2.2,
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,
Gas channel 7.
Embodiment
Referring to Fig. 1-8, the present invention relates to one kind without the anti-oxidant exhaust gas filter of black smoke, it includes Rose Box 1, screen pack 2
With ceramic honeycomb carrier 3, the left end of Rose Box 1 is inlet exhaust gas 4, and right-hand member is offgas outlet 5, the screen pack 2 and ceramic honeybee
Nest carrier 3 is arranged in Rose Box 1, and screen pack 2 is positioned close at inlet exhaust gas 4.
The screen pack 2 is made of stainless steel material, and the pressure of oblique backfin 2.1 and longitudinal direction is provided with screen pack 2
Convex 2.2, Fig. 7 is the expanded view of screen pack 2, and axial direction when laterally being rolled in way for screen pack 2, longitudinal direction is rolled for screen pack 2
Radial direction when coming, in use, being arranged on after screen pack 2 is wound in Rose Box 1, backfin 2.1 and the body of screen pack 2 form air-flow
Passage 7, the intersection of gas channel 7 form multiple rhombus expansion slots, and every a segment distance by belling 2.2 formed one every
Disconnected, when motor exhaust blows to gas channel 7, a part shunts along gas channel 7, and a part passes through the body mistake of screen pack 2
Filter, along the partial tail gas that gas channel 7 shunts by different degrees of turbulent flow can be produced when expansion slot and cut-off, formed multiple
The shunting in direction, the black smoke particle in tail gas is set fully to be captured on the body of screen pack 2, when black smoke granule capturing is to necessarily
During amount, it can burn to form CO at a high temperature of engine exhaust2, so as to realize the function of filter regeneration.
The Rose Box 1 includes the first arc-shaped edges 1.1, the second arc-shaped edges 1.2, the first hypotenuse 1.3 and the second hypotenuse 1.4,
First arc-shaped edges 1.1, the second hypotenuse 1.4, the second arc-shaped edges 1.2 and the first hypotenuse 1.3 are joined end to end successively, and connecting place is adopted
With round-corner transition, the shape of the ceramic honeycomb carrier 3 is corresponding with Rose Box 1, and ceramic honeycomb carrier 3 gathers in the axial direction
There is a stomata 3.1, 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 is opened
3.6 arranged for interval of mouth, the two neighboring stomata 3.1 are provided with next door 3.3, are provided with next door 3.3 in cellular micropore
3.4, 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.
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 by-pass filtration of screen pack 2, so
Enter ceramic honeycomb carrier 3 afterwards and carry out secondary filtration, enter from the opening 3.6 of stomata 3.1, because stomata 3.1 is opened at one end
Mouth 3.6, and be 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 from adjacent gas
The opening 3.6 in hole 3.1 is discharged, and because the diameter of black smoke particle is big compared with micropore 3.4, therefore the black smoke particle in waste gas will be filtered
Catch on next door 3.3, air-flow then passes through from micropore 3.4.
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 (3)
1. one kind is without the anti-oxidant exhaust gas filter of black smoke, including Rose Box（1）, it is characterised in that：The Rose Box（1）Interior setting
There is screen pack（2）And ceramic honeycomb carrier（3）, screen pack（2）On be provided with oblique backfin（2.1）With the belling of longitudinal direction
（2.2）, the Rose Box（1）Including the first arc-shaped edges（1.1）, the second arc-shaped edges（1.2）, the first hypotenuse（1.3）It is oblique with second
Side（1.4）, first arc-shaped edges（1.1）, the second hypotenuse（1.4）, the second arc-shaped edges（1.2）With the first hypotenuse（1.3）Successively
Join end to end, connecting place uses round-corner transition, the ceramic honeycomb carrier（3）Stomata is densely covered with the axial direction（3.1）, it is described
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 cellular micropore
（3.4）, next door（3.3）It is upper to be coated with catalyst coat（3.5）, the ceramic honey comb surface is coated with antioxidant coating, described
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, the nickel of 0.10-0.20wt% zirconium and surplus.
2. one kind according to claim 1 is without the anti-oxidant exhaust gas filter of black smoke, it is characterised in that：The stomata（3.1）
Hole count be 600 holes/square inch.
3. one kind according to claim 1 or 2 is without the anti-oxidant exhaust gas filter of black smoke, it is characterised in that：The next door
（3.3）Thickness be 0.13 ~ 0.14mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610489267.0A CN107542542A (en) | 2016-06-29 | 2016-06-29 | Without the anti-oxidant exhaust gas filter of black smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610489267.0A CN107542542A (en) | 2016-06-29 | 2016-06-29 | Without the anti-oxidant exhaust gas filter of black smoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107542542A true CN107542542A (en) | 2018-01-05 |
Family
ID=60962808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610489267.0A Pending CN107542542A (en) | 2016-06-29 | 2016-06-29 | Without the anti-oxidant exhaust gas filter of black smoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107542542A (en) |
-
2016
- 2016-06-29 CN CN201610489267.0A patent/CN107542542A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180105 |