CN106481389A - The exhaust gas filter of good purification - Google Patents
The exhaust gas filter of good purification Download PDFInfo
- Publication number
- CN106481389A CN106481389A CN201510551079.1A CN201510551079A CN106481389A CN 106481389 A CN106481389 A CN 106481389A CN 201510551079 A CN201510551079 A CN 201510551079A CN 106481389 A CN106481389 A CN 106481389A
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- CN
- China
- Prior art keywords
- ceramic honeycomb
- honeycomb carrier
- exhaust gas
- screen pack
- rose box
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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)
Abstract
The present invention relates to a kind of exhaust gas filter of good purification.It includes Rose Box（1）, the Rose Box（1）Interior the first screen pack is disposed with along airflow direction（2）, the first ceramic honeycomb carrier（3）, the second ceramic honeycomb carrier（7）With the second screen pack（8）, Rose Box（1）Hush pipe is inside provided with（9）, hush pipe（9）On be provided with arm with holes on wall（10）.A kind of exhaust gas filter of good purification of the present invention, under the first screen pack, the first ceramic honeycomb carrier, the second ceramic honeycomb carrier and the second screen pack level Four are filtered, main component is the tail gas of 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；While this filter good muffling effect.
Description
Technical field
The present invention relates to a kind of exhaust gas filter of good purification, 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 filtration, otherwise is exactly that filter is not proper, it is easy to lead and put air pollution and noise pollution；Particularly, the automobile of Diesel engine is equipped with, and due to containing black smoke particle in the tail gas of Diesel engine, existing exhaust gas filter can not effectively filter black smoke particle, can so cause environmental pollution；Existing tail gas noise reduction is realized by arranging bloop, but the easy loose or dislocation of bloop, it is difficult to play preferable erasure effect.
Content of the invention
It is an object of the invention to overcoming above-mentioned deficiency; there is provided a kind of exhaust gas filter of good purification; black smoke particle can also be filtered while CO, HC, NOx pernicious gas of this exhaust gas filter in vehicle exhaust is filtered, and black smoke particle can progressively burn and aoxidize at high temperature；While good muffling effect.
The object of the present invention is achieved like this：
A kind of exhaust gas filter of good purification, including Rose Box, is characterized in：The Rose Box is in cylinder, the first screen pack is disposed with along airflow direction in Rose Box, first ceramic honeycomb carrier, second ceramic honeycomb carrier and the second screen pack, first ceramic honeycomb carrier is identical with the second ceramic honeycomb carrier structure, and shape is corresponding with Rose Box, first ceramic honeycomb carrier is densely covered with pore in the axial direction, one end of the pore is opening, the other end is provided with closure face, the closure face and open space arrangement, the two neighboring pore is provided with next door, have on next door in cellular micropore, catalyst coat is coated with next door, hush pipe is provided between the front end of the Rose Box and the import of ceramic honeycomb carrier, the outlet of hush pipe is connected with the import of ceramic honeycomb carrier, the entrance of hush pipe is provided with arm with holes on wall.
A kind of exhaust gas filter of good purification of the present invention, the hole count of its pore is 600 holes/square inch.
A kind of exhaust gas filter of good purification of the present invention, the thickness in its next door is 0.13 ~ 0.14mm.
A kind of environment-friendly type exhaust gas filter of the present invention, its first screen pack are made using copper monoxide material.
A kind of environment-friendly type exhaust gas filter of the present invention, its special second screen pack are made using absorbent charcoal material.
Compared with prior art, the invention has the beneficial effects as follows：
A kind of exhaust gas filter of good purification of the present invention, under the first screen pack, the first ceramic honeycomb carrier, the second ceramic honeycomb carrier and the second screen pack level Four are filtered, main component is the tail gas of CO, HC, NOx, reacts into CO2、H2O、N2And O2While 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; hush pipe is provided with Rose Box, arm is set on hush pipe, increases the contact area of tail gas and hush pipe; contribute to air-flow is guided, play sound deadening.
Description of the drawings
Fig. 1 is a kind of structural representation of the exhaust gas filter of good purification of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the schematic cross-section of first ceramic honeycomb carrier of the present invention.
Fig. 4 is the partial axial section figure of first ceramic honeycomb carrier of the present invention.
Fig. 5 is the structural representation in the next door of first ceramic honeycomb carrier of the present invention.
In figure：
Rose Box 1,
First screen pack 2,
First ceramic honeycomb carrier 3,
Pore 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,
Hush pipe 9,
Arm 10.
Specific embodiment
Referring to Fig. 1-5，The present invention relates to a kind of exhaust gas filter of good purification，It includes Rose Box 1、First screen pack 2、First ceramic honeycomb carrier 3、Second ceramic honeycomb carrier 7 and the second screen pack 8，The left end of Rose Box 1 is inlet exhaust gas 4，Right-hand member is offgas outlet 5，First screen pack 2、First ceramic honeycomb carrier 3、Second ceramic honeycomb carrier 7 and the second screen pack 8 are arranged in Rose Box 1，First screen pack 2 is at inlet exhaust gas 4，Second screen pack 8 is at offgas outlet 5，The Rose Box 1 is in cylinder，First ceramic honeycomb carrier 3 is identical with the structure of the second honeycomb substrate 7，And shape is corresponding with filtering case 1 is crossed，First ceramic honeycomb carrier 3 is densely covered with pore 3.1 in the axial direction，One end of the pore 3.1 is opening 3.6，The other end is provided with closure face 3.2，The closure face 3.2 and 3.6 arranged for interval of opening，The two neighboring pore 3.1 is provided with next door 3.3，Have on next door 3.3 in cellular micropore 3.4，Catalyst coat 3.5 is coated with next door 3.3.
Hush pipe 9 is provided between the import of the front end of the Rose Box 1 and the first ceramic honeycomb carrier 3, the outlet of hush pipe 9 is connected with the import of the first ceramic honeycomb carrier 3, the entrance of hush pipe 9 is provided with arm 10 with holes on two walls.
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.
First screen pack 2 is made using copper monoxide material, and the second screen pack 8 is made using absorbent charcoal material.As copper monoxide has very strong oxidisability, so the oxidation of moment will be carried out when the carbon monoxide with reproducibility is run into which, produce the carbon dioxide of not atmosphere pollution, whole process is exactly a redox process, and the second screen pack 8 is that screen pack with activated carbon can adsorb to the first screen pack 2 and 7 untreated CO gas of the second ceramic honeycomb carrier.
Operation principle：The present invention is fabricated to honeycomb ceramic carrier using cordierite，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 are entered，Single filter through the first screen pack 2，Cascade filtration is carried out subsequently into the first ceramic honeycomb carrier 3，Enter from the opening 3.6 of pore 3.1，As pore 3.1 is opening 3.6 at one end，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 discharge from the opening 3.6 of adjacent air holes 3.1，As the diameter of black smoke particle is big compared with micropore 3.4，Therefore the black smoke particle in waste gas will be caught on next door 3.3 by filtering，Air-flow is then passed through from micropore 3.4，The waste gas that discharges from the first ceramic honeycomb carrier 3 enters the second ceramic honeycomb carrier 7，Carry out three-stage filtration，The same cascade filtration of work principle of filter，The waste gas that discharges from the second ceramic honeycomb carrier 7 enters the second screen pack 8 and carries out level Four filtration，Carbon monoxide to remaining adsorbs.
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, coat the catalyst coat 3.5 on next door 3.3 and will strengthen CO, HC, NOxThe activity of three kinds of gases, promotes which to carry out certain oxidationreduction chemical reaction, and wherein CO is oxidized to colourless nontoxic carbon dioxide at high temperature, and HC compound resolves 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, the black smoke particle on next door 3.3 can progressively burn and aoxidize, and the purifying rate of black smoke particle about reaches more than 85%, when reaction temperature reaches 500
Degree Celsius when catalyst and black smoke particle reaction so as to burn completely（Catalysis burning）, now the purifying rate of black smoke particle is up to more than 90%.
Claims (5)
1. a kind of exhaust gas filter of good purification, including Rose Box（1）, it is characterised in that：The Rose Box（1）In cylinder, Rose Box（1）Interior the first screen pack is disposed with along airflow direction（2）, the first ceramic honeycomb carrier（3）, the second ceramic honeycomb carrier（7）With the second screen pack（8）, first ceramic honeycomb carrier（3）With the second ceramic honeycomb carrier（7）Structure is identical, and shape and Rose Box（1）Corresponding, the first ceramic honeycomb carrier（3）Pore is densely covered with the axial direction（3.1）, the pore（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 pore（3.1）It is provided with next door（3.3）, next door（3.3）On have in cellular micropore（3.4）, next door（3.3）On be coated with catalyst coat（3.5）, the Rose Box（1）Front end and the first ceramic honeycomb carrier（3）Import between be provided with hush pipe（9）, hush pipe（9）Outlet and the first ceramic honeycomb carrier（3）Import be connected, hush pipe（9）Entrance be provided with arm with holes on wall（10）.
2. the exhaust gas filter of a kind of good purification according to claim 1, it is characterised in that：The pore（3.1）Hole count be 600 holes/square inch.
3. the exhaust gas filter of a kind of good purification according to claim 1 and 2, it is characterised in that：The next door（3.3）Thickness be 0.13 ~ 0.14mm.
4. a kind of environment-friendly type exhaust gas filter according to claim 1, it is characterised in that：First screen pack（2）Made using copper monoxide material.
5. a kind of environment-friendly type exhaust gas filter according to claim 1, it is characterised in that：Second screen pack（8）Made using absorbent charcoal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510551079.1A CN106481389A (en) | 2015-09-02 | 2015-09-02 | The exhaust gas filter of good purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510551079.1A CN106481389A (en) | 2015-09-02 | 2015-09-02 | The exhaust gas filter of good purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106481389A true CN106481389A (en) | 2017-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510551079.1A Pending CN106481389A (en) | 2015-09-02 | 2015-09-02 | The exhaust gas filter of good purification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106481389A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060958A (en) * | 2017-06-16 | 2017-08-18 | 福州明旭环保科技有限公司 | A kind of eco-friendly car exhaust gas cleaner |
-
2015
- 2015-09-02 CN CN201510551079.1A patent/CN106481389A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060958A (en) * | 2017-06-16 | 2017-08-18 | 福州明旭环保科技有限公司 | A kind of eco-friendly car exhaust gas cleaner |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170308 |