CN104265419A - Environment-friendly exhaust filter - Google Patents
Environment-friendly exhaust filter Download PDFInfo
- Publication number
- CN104265419A CN104265419A CN201410433790.2A CN201410433790A CN104265419A CN 104265419 A CN104265419 A CN 104265419A CN 201410433790 A CN201410433790 A CN 201410433790A CN 104265419 A CN104265419 A CN 104265419A
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- CN
- China
- Prior art keywords
- exhaust gas
- environment protection
- filter screen
- protection type
- next door
- 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)
Abstract
The invention relates to an environment-friendly exhaust filter comprising a filtering box (1). The filtering box (1) is provided with a first filtering net (2), a ceramic honeycomb carrier (3) and a second filtering net (7). By means of double filter of the filtering nets and the ceramic honeycomb carrier, the main exhaust ingredients of CO, HC and NOx react and form CO2, H2O, N2 and O2, black smoke particles of the exhaust can be filtered effectively through pores of a partition and burnt under the effect of catalyst coatings, and the exhaust purification effect is further improved.
Description
Technical field
The present invention relates to a kind of environment protection type exhaust gas filter, for purifying vehicle exhaust.Belong to automobile equipment technical field.
Background technique
At present, common automobile exhaust filter, is all much directly discharge without filtration, otherwise is exactly that filtrating equipment is improper, be easy to lead put atmospheric pollution and noise pollution; Especially, be equipped with the automobile of diesel engine, owing to containing black smoke particle in the tail gas of diesel engine, existing exhaust gas filter can not effectively filter black smoke particle, can cause environmental pollution like this.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency; provide a kind of environment protection type exhaust gas filter; this exhaust gas filter also can filter black smoke particle while filtering CO, HC, NOx harmful gas in vehicle exhaust, and at high temperature black smoke particle can progressively burn and be oxidized.
The object of the present invention is achieved like this:
A kind of environment protection type exhaust gas filter, comprise Rose Box, it is characterized in that: in described Rose Box, be disposed with the first filter screen along airflow direction, ceramic honeycomb carrier and the second filter screen, the cross section of described Rose Box comprises the first arc-shaped edges, second arc-shaped edges, first hypotenuse and the second hypotenuse, described first arc-shaped edges, second hypotenuse, second arc-shaped edges and the first hypotenuse join end to end successively, connecting place adopts round-corner transition, described ceramic honeycomb carrier is densely covered with pore in the axial direction, one end of described pore is opening, the other end is provided with shutoff face, described shutoff face and open space are arranged, described adjacent two pores are provided with next door, next door have in cellular micropore, next door is coated with catalyst coat.
A kind of environment protection type exhaust gas filter of the present invention, the hole count of its pore is 600 holes/square inch.
A kind of environment protection type exhaust gas filter of the present invention, the thickness in its next door is 0.13 ~ 0.14mm.
A kind of environment protection type exhaust gas filter of the present invention, its first filter screen adopts copper monoxide material to make.
A kind of environment protection type exhaust gas filter of the present invention, its special second filter screen adopts absorbent charcoal material to make.
Compared with prior art, the invention has the beneficial effects as follows:
A kind of environment protection type exhaust gas filter of the present invention, under the first filter screen, ceramic honeycomb carrier and the second three-stage filtration filtered, is the tail gas of CO, HC, NOx by main component, is reacted into CO
2, H
2o, N
2and O
2, the micropore simultaneously on next door can black smoke particle effectively in filtering exhaust, and under the effect of catalyst coat black smoke particle can burned fall, further increase tail gas clean-up effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of environment protection type exhaust gas filter of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the schematic cross-section of ceramic honeycomb carrier of the present invention.
Fig. 4 is the partial axial section figure of ceramic honeycomb carrier of the present invention.
Fig. 5 is the structural representation in the next door of 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 filter screen 2,
Ceramic honeycomb carrier 3,
Pore 3.1,
Shutoff 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 filter screen 7.
Embodiment
See Fig. 1-5, the present invention relates to a kind of environment protection type exhaust gas filter, it comprises Rose Box 1, first filter screen 2, ceramic honeycomb carrier 3 and the second filter screen 7, the left end of Rose Box 1 is inlet exhaust gas 4, right-hand member is offgas outlet 5, described first filter screen 2, ceramic honeycomb carrier 3 and the second filter screen 7 are arranged in Rose Box 1, first filter screen 2 is near inlet exhaust gas 4 place, second filter screen 7 is near offgas outlet place, described Rose Box 1 comprises the first arc-shaped edges 1.1, second arc-shaped edges 1.2, first hypotenuse 1.3 and the second hypotenuse 1.4, described first arc-shaped edges 1.1, second hypotenuse 1.4, second arc-shaped edges 1.2 and the first hypotenuse 1.3 join end to end successively, connecting place adopts round-corner transition, the shape of described ceramic honeycomb carrier 3 is corresponding with Rose Box 1, and ceramic honeycomb carrier 3 is densely covered with pore 3.1 in the axial direction, one end of described pore 3.1 is opening 3.6, the other end is provided with shutoff face 3.2, described shutoff face 3.2 and opening 3.6 interval are arranged, described adjacent two pores 3.1 are provided with next door 3.3, next door 3.3 have in cellular micropore 3.4, next door 3.3 is coated with catalyst coat 3.5.
Wherein, the hole count of pore 3.1 is 600 holes/square inch, and the thickness in next door 3.3 is 0.13 ~ 0.14mm.
Described first filter screen 2 adopts copper monoxide material to make, and the second filter screen 7 adopts absorbent charcoal material to make.Because copper monoxide has very strong oxidability, so the oxidation of moment will be carried out in time running into the carbon monoxide with reducibility to it, produce the carbon dioxide of not atmosphere pollution, whole process is exactly a redox process, the second filter screen 7 for adsorbing the first filter screen 2 and the untreated CO (carbon monoxide converter) gas of ceramic honeycomb carrier 3 with the filter screen of active carbon.
Working principle: the present invention adopts cordierite to be made into honeycomb ceramic carrier, and be built in exhaust purifier of diesel engine, the waste gas inlet exhaust gas 4 with black smoke particle that diesel engine is discharged enters, through the single filter of the first filter screen 2, then enter ceramic honeycomb carrier 3 and carry out cascade filtration, tail gas enters from the opening 3.6 of pore 3.1, because pore 3.1 is at one end opening 3.6, then shutoff face 3.2 at the other end, therefore waste gas can by the next door 3.3 with micropore 3.4, then discharge from the opening 3.6 of adjacent air holes 3.1, due to the diameter of black smoke particle, comparatively micropore 3.4 is large, therefore the black smoke particle in waste gas will be filtered and catch on next door 3.3, air-flow then passes from micropore 3.4, enter the second filter screen 7 from the waste gas of ceramic honeycomb carrier 3 discharge and carry out three-stage filtration, residual carbon monoxide is adsorbed.
The active rare earth of described catalyst coat 3.5 containing precious metal, Main Ingredients and Appearance has Pt, Pd, Rh, Al
2o
3, Ce, La, Zr, Cu, Mn, when the waste gas (being mainly the harmful gases such as CO, HC, NOx) of diesel combustion is through micropore 3.4, the catalyst coat 3.5 be coated on next door 3.3 will strengthen CO, HC, NO
xthe activity of three kinds of gases, impel it to carry out certain oxidationreduction chemical reaction, wherein CO is at high temperature oxidized to colourless nontoxic carbon dioxide, and HC compound at high temperature resolves into water (H
2o) and carbon dioxide, NO
xbe reduced into nitrogen and oxygen.
When diesel exhaust gas temperature reaches 375 degrees Celsius; under the effect of catalyst coat 3.5; black smoke particle on next door 3.3 can progressively burn and be oxidized; the purification ratio of black smoke particle about reaches more than 85%; catalyzer and black smoke particle reaction when reaction temperature reaches 500 degrees Celsius thus perfect combustion are fallen (catalytic combustion), and now the purification ratio of black smoke particle can reach more than 90%.
Claims (5)
1. an environment protection type exhaust gas filter, comprise Rose Box (1), it is characterized in that: in described Rose Box (1), be disposed with the first filter screen (2) along airflow direction, ceramic honeycomb carrier (3) and the second filter screen (7), the cross section of described Rose Box (1) comprises the first arc-shaped edges (1.1), second arc-shaped edges (1.2), first hypotenuse (1.3) and the second hypotenuse (1.4), described first arc-shaped edges (1.1), second hypotenuse (1.4), second arc-shaped edges (1.2) and the first hypotenuse (1.3) join end to end successively, connecting place adopts round-corner transition, described ceramic honeycomb carrier (3) is densely covered with pore (3.1) in the axial direction, one end of described pore (3.1) is opening (3.6), the other end is provided with shutoff face (3.2), described shutoff face (3.2) and opening (3.6) interval are arranged, described adjacent two pores (3.1) are provided with next door (3.3), next door (3.3) has in cellular micropore (3.4), next door (3.3) is coated with catalyst coat (3.5).
2. a kind of environment protection type exhaust gas filter according to claim 1, is characterized in that: the hole count of described pore (3.1) is 600 holes/square inch.
3. a kind of environment protection type exhaust gas filter according to claim 1 and 2, is characterized in that: the thickness of described next door (3.3) is 0.13 ~ 0.14mm.
4. a kind of environment protection type exhaust gas filter according to claim 1, is characterized in that: described first filter screen (2) adopts copper monoxide material to make.
5. a kind of environment protection type exhaust gas filter according to claim 1, is characterized in that: described second filter screen (7) adopts absorbent charcoal material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410433790.2A CN104265419A (en) | 2014-08-29 | 2014-08-29 | Environment-friendly exhaust filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410433790.2A CN104265419A (en) | 2014-08-29 | 2014-08-29 | Environment-friendly exhaust filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104265419A true CN104265419A (en) | 2015-01-07 |
Family
ID=52156977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410433790.2A Pending CN104265419A (en) | 2014-08-29 | 2014-08-29 | Environment-friendly exhaust filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104265419A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763495A (en) * | 2015-04-25 | 2015-07-08 | 杜志刚 | Automobile tail gas filtering device |
-
2014
- 2014-08-29 CN CN201410433790.2A patent/CN104265419A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763495A (en) * | 2015-04-25 | 2015-07-08 | 杜志刚 | Automobile tail gas filtering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |
|
| WD01 | Invention patent application deemed withdrawn after publication |