CN104594995B - Car tail gas purifier based on metal foam - Google Patents
Car tail gas purifier based on metal foam Download PDFInfo
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- CN104594995B CN104594995B CN201410691016.1A CN201410691016A CN104594995B CN 104594995 B CN104594995 B CN 104594995B CN 201410691016 A CN201410691016 A CN 201410691016A CN 104594995 B CN104594995 B CN 104594995B
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- clean unit
- red copper
- foam
- automobile exhaust
- copper foam
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- Filtering Materials (AREA)
- Exhaust Gas After Treatment (AREA)
- Treating Waste Gases (AREA)
Abstract
A car tail gas purifier based on metal foam is composed of two stages of purifying units connected in series. The inlet of the first stage of purifying unit is connected with a car tail gas exhaust end, and the first stage of purifying unit is filled with high-hole-density red copper foam processed in a surface oxidation mode. The second stage of purifying unit is filled with high-hole-density red copper foam not processed in the surface oxidation mode. The outer surfaces of the purifying units are plated with zirconia thermal insulation coatings. The change range of the hole density of the high-hole-density red copper foam is 80-130 PPI, and the change range of the porosity is 0.5-0.98. The car tail gas purifier based on the technology can be reused, and is low in manufacturing cost and suitable for wide popularization.
Description
Technical field
The present invention relates to a kind of device of metal foam applied technical field, specifically a kind of reusable based on gold
Belong to the automobile exhaust purifier of foam.
Background technology
Vehicle exhaust is the important sources of atmosphere pollution.At present, a lot of filters are not proper to vehicle maintenance service,
And soundproof effect is bad.There are dense metallic framework and the passage wriggling inside high density holes metal foam, and light weight,
Can be with filtering contaminants, abate the noise pollution, has very bright application prospect in field of Environment Protection.
Find through the retrieval to prior art, Chinese patent literature CN102159803A open (bulletin) day
2011.08.17, disclose a kind of filter for purifying vehicle exhaust to include：Casing；Front backup flange disk and rear support
Ring flange, is arranged in described casing；Filter element, is arranged between described front backup flange disk and rear backup flange disk.Institute
State front backup flange disk and rear backup flange disk is respectively perpendicular the leading section being fixed on described filter element and rearward end.Described mistake
Filter part includes having stacking shape or winds nickel alloy (containing the chromium and iron) foam filter of shape and be used for coating described foam gold
Belong to metal gasket or the sheath of filter.It is arranged on the antipriming pipe within described filter element and be formed with multiple holes.Described
Antipriming pipe includes any one of following structure structure, that is, to the less structure of the rearward end width of pipeline, to
Structure that the bigger structure of the rearward end width of pipeline, the hole of rearward end taper into, the structure in middle insertion cone or
Person is in the structure of middle insertion pyramid.But the automobile tail gas filtering device manufacture craft described in this technology is considerably complicated, not
Suitably marketization application.
Chinese patent literature CN101608565 open (bulletin) day 2009.12.23, disclose a kind of throughflow type oxidation
Type particle filtering combustor manufacture method, mainly has domestic cordierite honeycomb ceramic blended rare-earth tailing transition metal oxide
Modified for first vector, modified aluminas be Second support, with precious metals pt, Rh, Pd as active component, and with ectonexine apply
It is covered with metallic foam support, temperature inductor, carbon fiber particles burner and the outer shell phase of modified aluminas difference modified formula
Combination.But this fabrication techniques flow process is complicated, with high costs, and product is frangible, be not suitable for often in pavement conditions difference traveling
Motor vehicles use.
Content of the invention
The present invention is directed to deficiencies of the prior art, proposes a kind of purifying vehicle exhaust based on metal foam
Device, is achieved by surface oxidation and unoxidized high density holes copper foam composition.
The present invention is achieved by the following technical solutions：The present invention is made up of the clean unit of two-stage series connection, wherein：The
The entrance of first class purification unit connects motor vehicle exhaust emission end, and in this clean unit, the high density holes of wadding warp surface oxidation treatment are purple
Copper foam, second level unit then fills the high density holes red copper foam without surface oxidation treatment, described clean unit appearance
Face is all coated with zirconia barrier coatings.
Described high density holes red copper foam, the excursion of its hole density is 80PPI～130PPI, porosity change model
Enclose 0.5～0.98.
Described zirconia coating be by HTHP spray gun on the red copper housing that thermal spraying is attached to clean unit.
Described clean unit is made up of stainless steel, and its thickness is 2mm.
Described surface oxidation treatment refers to：High density holes red copper foam is positioned in Muffle furnace, starts Muffle furnace, will
In-furnace temperature rises to 200 DEG C and keeps being cooled to normal temperature under 30 minutes, air.
It is air atmosphere in described Muffle furnace.
Under described air, cooling refers to：Open the fire door of Muffle furnace, allow in-furnace temperature be gradually decrease to room temperature, strengthen purple
The degree of oxidation of copper foam.
Technique effect
Compared with prior art, high density holes copper foam reduction car tail after first order unit internal oxidition for the present invention
The toxic gas of the reproducibilities such as the carbon monoxide in gas, filters the particle in vehicle exhaust simultaneously；Red copper in the unit of the second level
Foam is heated by vehicle exhaust, its Surface Creation cupric oxide, simultaneously further by micro particle filtering in vehicle exhaust.In ultrasonic wave
The particulate in the first order and second level unit metal foam is removed in clarifier.Upper once install when, two-stage unit is installed
Order exchanges.Automobile exhaust purifier can be allowed to be reused.This patent cleverly runs into reproducibility using copper monoxide
Gas reduction is the principles of chemistry of copper, by means of the excellent strainability of high density holes red copper foam, considerably increases automobile
The access times of exhaust gas filter, reduce production cost, are suitable for large-scale promotion.
Brief description
Fig. 1 is present configuration schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings presently preferred embodiments of the present invention is described in detail, so that advantages of the present invention is more easy to by this
Skilled person understands, but protection scope of the present invention is not limited to this embodiment.
As shown in figure 1, the present embodiment includes：Clean unit 1, oxidation-treated high density holes red copper foam 2, without oxygen
Change the high density holes red copper foam 4 processing, zirconium oxide coating 5, the outlet of the entrance of first order unit and second level unit is respectively
It is connected with the air inlet 3 of automobile exhaust purifier and automobile exhaust purifier gas outlet 6.
Connected by screw thread form between two-step purification unit 1, be easily installed.
The present embodiment fills the high density holes red copper foam 2 after oxidation in first order unit, because cupric oxide has very
Strong oxidisability, having the reducibility gas such as the carbon monoxide of reproducibility in vehicle exhaust can aoxidize to it, and cupric oxide is also
Former one-tenth copper, and produce free of contamination carbon dioxide.In the unit of the second level, filling does not have oxidized red copper foam 4, in car tail
Under the hot environment of gas, gradually oxidized, Surface Creation cupric oxide.Particle in vehicle exhaust passes through the height in this two-stage unit
After hole density foamed filter, concentration can be greatly reduced.This technology reduces in the air PM2.5 and PM10 concentration, improves environment
Quality.
Claims (6)
1. a kind of automobile exhaust purifier based on metal foam is it is characterised in that be made up of the clean unit of two-stage series connection, its
In：The entrance of first order clean unit connects motor vehicle exhaust emission end, the high hole of wadding warp surface oxidation treatment in this clean unit
Density red copper foam, second level clean unit then fills the high density holes red copper foam without surface oxidation treatment, and described two
The clean unit outer surface of level series connection is all coated with zirconia barrier coatings；
Described high density holes red copper foam, the excursion of its hole density is 80PPI～130PPI, porosity change scope
0.5～0.98；
Described surface oxidation treatment refers to：
The first step, high density holes red copper foam is positioned in Muffle furnace；
Second step, startup Muffle furnace, in-furnace temperature are risen to 200 DEG C and keep being cooled to normal temperature under 30 minutes, air.
2. automobile exhaust purifier according to claim 1, is characterized in that, described zirconia barrier coatings are by high temperature
High-pressure spray gun is on the red copper housing that thermal spraying is attached to first order clean unit and second level clean unit.
3. automobile exhaust purifier according to claim 1, is characterized in that, the clean unit of described two-stage series connection is not
Rust steel is made, and its thickness is 2mm.
4. automobile exhaust purifier according to claim 1, is characterized in that, is air atmosphere in described Muffle furnace.
5. automobile exhaust purifier according to claim 1, is characterized in that, cooling under described air refers to：Open horse
The not fire door of stove, allows in-furnace temperature be gradually decrease to room temperature, strengthens the degree of oxidation of red copper foam.
6. automobile exhaust purifier according to claim 1, is characterized in that, between the described clean unit of two-stage series connection
Connected by screw thread form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410691016.1A CN104594995B (en) | 2014-11-26 | 2014-11-26 | Car tail gas purifier based on metal foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410691016.1A CN104594995B (en) | 2014-11-26 | 2014-11-26 | Car tail gas purifier based on metal foam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104594995A CN104594995A (en) | 2015-05-06 |
| CN104594995B true CN104594995B (en) | 2017-02-22 |
Family
ID=53121000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410691016.1A Active CN104594995B (en) | 2014-11-26 | 2014-11-26 | Car tail gas purifier based on metal foam |
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| Country | Link |
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| CN (1) | CN104594995B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2039412A2 (en) * | 2007-09-21 | 2009-03-25 | Wärtsilä Schweiz AG | Exhaust gas particle filter and method for manufacturing an exhaust gas particle filter |
| CN101608565A (en) * | 2009-07-16 | 2009-12-23 | 杨洪举 | Manufacture method of through flow type oxide particle filtering combustor |
| 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 |
| CN103114897A (en) * | 2013-01-30 | 2013-05-22 | 吉林省众鑫汽车装备有限公司 | Motor vehicle tail gas treater |
| CN103499096A (en) * | 2013-10-22 | 2014-01-08 | 上海交通大学 | Premixing preheating type gradient density through hole metal foam burner |
-
2014
- 2014-11-26 CN CN201410691016.1A patent/CN104594995B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2039412A2 (en) * | 2007-09-21 | 2009-03-25 | Wärtsilä Schweiz AG | Exhaust gas particle filter and method for manufacturing an exhaust gas particle filter |
| 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 |
| CN101608565A (en) * | 2009-07-16 | 2009-12-23 | 杨洪举 | Manufacture method of through flow type oxide particle filtering combustor |
| CN103114897A (en) * | 2013-01-30 | 2013-05-22 | 吉林省众鑫汽车装备有限公司 | Motor vehicle tail gas treater |
| CN103499096A (en) * | 2013-10-22 | 2014-01-08 | 上海交通大学 | Premixing preheating type gradient density through hole metal foam burner |
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| Publication number | Publication date |
|---|---|
| CN104594995A (en) | 2015-05-06 |
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