CN2374646Y - Multiple three-element catalysis automotive tail gas purifier - Google Patents
Multiple three-element catalysis automotive tail gas purifier Download PDFInfo
- Publication number
- CN2374646Y CN2374646Y CN99228168U CN99228168U CN2374646Y CN 2374646 Y CN2374646 Y CN 2374646Y CN 99228168 U CN99228168 U CN 99228168U CN 99228168 U CN99228168 U CN 99228168U CN 2374646 Y CN2374646 Y CN 2374646Y
- Authority
- CN
- China
- Prior art keywords
- housing
- shell body
- oxidation
- air
- ceramic monolith
- 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.)
- Expired - Fee Related
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Exhaust Gas After Treatment (AREA)
- Catalysts (AREA)
Abstract
The utility model belongs to an environment protecting technology, particularly a purifier used for catalyzing and converting the exhaust of tail gas pollution for automobiles, motorcycles and booster cycles The utility model comprises a shell body, a heat insulating cover, a purified air exhaust outlet, a waste gas inlet and two groups or more than two groups of ceramic carriers with passages, wherein the purified air exhaust outlet and the waste gas inlet are arranged in the shell body, and the ceramic carriers are arranged in the shell body. Each group of carriers comprises an oxidation reduction zone and an oxidation zone. An air chamber arranged between the oxidation reduction zone and the oxidation zone is communicated with passages and air supplemental openings on the shell body.
Description
The utility model relates to green technology, a concrete ground a kind of purification plant that is used for automobile, motorcycle, booster car exhaust pollutant discharging catalytic conversion of saying so.
Usually have only a redox district, an air chamber and a zoneofoxidation in the existing automobile trailer purifier shell, the product replenish air mouth that has does not have yet, this product shortcoming when our domestic use is a lot, influence owing to reasons such as production specifications and roads, be easy to make not too fastening ceramic monolith fragmentation, the developed area of redox district and zoneofoxidation is not enough, and the reasons such as oxygen deficiency of air chamber also can cause problems such as the short and purifying effect of life of product is not good.
The purpose of this utility model is in order to overcome in the prior art problems such as weak point in existing working life, purifying effect difference.Design a repeatedly three-element catalytic car tail-gas purifier.For achieving the above object, the utility model has designed a kind of like this device, it includes a housing, a thermal shield and be positioned at the purify air exhaust port and the exhaust gas inlet at housing two ends, oxidation is set in housing, the reduction zone, the ceramic monolith that has passage that two groups or more is arranged in housing, comprise a redox district and a zoneofoxidation in every group of ceramic monolith, it between redox district and zoneofoxidation air chamber, this air chamber and passage and the replenish air mouth that is installed on the housing are communicated with, described ceramic monolith is made up of sheet or cellular structure that inside has axial passage, at carrier surface coating catalyst layer.
Because the utility model is the ceramic monolith oncus, improved intensity, be difficult for being broken, but because carrier inner hole wall thickening, the quantity and the developed area of carrier inner via hole have been reduced, for making this device that enough redox and the required area of oxidation be arranged, increase redox for the second time and zoneofoxidation again and remedied the not enough of the interior developed area of carrier, add the making-up air device that has increased air chamber, with the oxygen that is consumed of supplemental, this just makes working life of this product and using effect all be greatly improved.
Fig. 1 is a structural drawing of the present utility model:
As shown in the figure: housing 1 is made of the cylindrical shell at middle part and the taper 7 at two ends, wherein the small end of taper is outside, and connect the exhaust gas inlet 12 of tubular and the exhaust port 13 that purifies air respectively at small end, be provided for flange connecting 9 in the outer end of importing and exporting 12,13, connect flat thermal shield 2 in a side of housing 1.In housing, alternately place ceramic monolith at interval, form redox district 3 and zoneofoxidation 5, in each redox district 3 and 5 of zoneofoxidations is air chamber 4, a redox district 3 and a zoneofoxidation 5 constitute one group, two groups in housing, have been placed altogether, on housing 1, replenish air mouth 6 is set corresponding to air chamber 4, uniform axial passage 11 in each ceramic monolith 10, at heat insulation 2 the four jiaos of uniform mounting holes 8 of putting, surface applied one deck catalyzer at ceramic monolith 10, its catalytic elements is a palladium, platinum, these elements are coated in the effect of playing catalysis on catalytic converter arrangement internal chiasma sheet or the cellular ceramic monolith, and wherein, there is palladium in the district in redox, three kinds of catalytic elements of platinum and rhodium, when waste gas passes through, existing oxidation reaction has reduction reaction again, nitrogen oxides Nox, three kinds of harmful gas amounts of hydrocarbon Hc and carbon monoxide CO descend, the air of storing in the air chamber pumps into from air pump, for the usefulness of oxidation reaction; In zoneofoxidation, have only this catalytic elements of platinum, can further remaining Hc and CO be carried out oxidation, but not have reduction reaction.
Claims (2)
1, three-element catalytic car tail-gas purifier repeatedly, comprise a housing (1), a thermal shield (2) and the exhaust port that purifies air (13) and exhaust gas inlet (12) that are positioned at the housing two ends, oxidation is set in housing, the reduction zone, it is characterized in that in housing, having two groups or more the ceramic monolith that has passage (11) (10), comprise a redox district (3) and a zoneofoxidation (5) in every group of ceramic monolith (10), be air chamber (4) between redox district and zoneofoxidation, this air chamber (4) and passage (11) and the replenish air mouth (6) that is installed on the housing (1) are communicated with.
2, purifier according to claim 1 is characterized in that ceramic monolith (10) is made up of sheet or cellular structure that inside has axial passage, at carrier surface coating catalyst layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99228168U CN2374646Y (en) | 1999-04-14 | 1999-04-14 | Multiple three-element catalysis automotive tail gas purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99228168U CN2374646Y (en) | 1999-04-14 | 1999-04-14 | Multiple three-element catalysis automotive tail gas purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2374646Y true CN2374646Y (en) | 2000-04-19 |
Family
ID=34017595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99228168U Expired - Fee Related CN2374646Y (en) | 1999-04-14 | 1999-04-14 | Multiple three-element catalysis automotive tail gas purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2374646Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296608C (en) * | 2002-10-30 | 2007-01-24 | 本田技研工业株式会社 | Waste discharge controlling system for engine |
| CN101629507A (en) * | 2009-04-29 | 2010-01-20 | 中国第一汽车集团公司 | Particulate oxidation catalyst postprocessor using metal carriers with two buffer gaps and preparation process thereof |
| CN110114563A (en) * | 2016-12-20 | 2019-08-09 | 康明斯排放处理公司 | V-type band radiant heat shielding case |
-
1999
- 1999-04-14 CN CN99228168U patent/CN2374646Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296608C (en) * | 2002-10-30 | 2007-01-24 | 本田技研工业株式会社 | Waste discharge controlling system for engine |
| CN101629507A (en) * | 2009-04-29 | 2010-01-20 | 中国第一汽车集团公司 | Particulate oxidation catalyst postprocessor using metal carriers with two buffer gaps and preparation process thereof |
| CN110114563A (en) * | 2016-12-20 | 2019-08-09 | 康明斯排放处理公司 | V-type band radiant heat shielding case |
| CN110114563B (en) * | 2016-12-20 | 2021-06-08 | 康明斯排放处理公司 | V-shaped hoop radiation heat shield |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |