CN104047686A - Metal type diesel vehicle tail gas catalytic cleaner - Google Patents
Metal type diesel vehicle tail gas catalytic cleaner Download PDFInfo
- Publication number
- CN104047686A CN104047686A CN201410224709.XA CN201410224709A CN104047686A CN 104047686 A CN104047686 A CN 104047686A CN 201410224709 A CN201410224709 A CN 201410224709A CN 104047686 A CN104047686 A CN 104047686A
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- China
- Prior art keywords
- carrier
- grade carrier
- diesel vehicle
- exhaust gas
- metal mold
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- 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
Abstract
The invention discloses a metal type diesel vehicle tail gas catalytic cleaner. The metal type diesel vehicle tail gas catalytic cleaner comprises a shell and a carrier arranged in the shell, wherein the carrier comprises a front-grade carrier located at the front part of the shell and a back-grade carrier located at the back part of the shell; the front-grade carrier is coated with a diesel oxidized form catalyst coating; the back-grade carrier is coated with a particle oxidized form catalytic cleaning agent coating. The front-grade carrier is coated with the diesel oxidized form catalyst coating to process CO and HC in diesel engine tail gas; the back-grade carrier is coated with the particle oxidized form catalytic cleaning agent coating to process PM (Particulate Matters) in the diesel engine tail gas; the front-grade carrier and the back-grade carrier are arranged in one barrel; the structure is simple, a processing process is simple and the cost is saved.
Description
Technical field
The present invention relates to a kind of metal mold exhaust gas from diesel vehicle catalytic cleaner.
Background technique
In recent years, diesel engine has been subject to paying attention to widely because having good power performance and the economy performance gradually.Heavy goods vehicle, city big bus, industrial machinery etc. are nearly all taking diesel engine as power source.Since China's entry into the WTO, in Global Auto recoverable amount propagation process, gasoline car increasing degree is only 22%, and diesel-oil vehicle increasing degree is up to 58%, day by day clue of global power train in vehicle application " diesel oil " trend.Although diesel engine has obvious power advantage, its pollution emission is very important equally.
The exhaust pollutant of diesel engine mainly contains CO, HC, NO
xand PM.Wherein CO is toxic gas.HC and NO
xbe the main component that forms photochemical smog, also can form acid rain simultaneously.PM is particulate matter, mainly by charcoal cigarette, and the formation such as dissolved organic matter and a small amount of sulphate.The especially micron-sized PM of PM, almost all can be inhaled in human body, very large to health and Atomspheric Environmental.The combustion characteristic of diesel engine has determined that it is for oxygen-enriched atmosphere, and therefore the discharge amount of CO and HC is relatively little.But particulate matter PM and NO that diesel engine is higher
xdischarge, has caused great pressure to the mankind's living environment.
For improving atmosphere environment, ensure the mankind's health, strict regulation has all been made to motor vehicle exhaust emission in countries in the world.On January 10th, 2012, national environmental protection portion gives out information, and has announced the Schedule of implementing national fourth stage C.I. Engines of Automobile and auto emission standard." automobile-used compression-ignited, gaseous fuel spark-ignition engine and automobile exhaust pollutant discharge limit value and method of measurement China III, IV, V stage " GB17691-2005 fourth stage emission limit is called " state's four standards " in the following text and will be implemented step by step.From 1 day July in 2013, the C.I. Engines of Automobile of all production, import, sale and registration and automobile all must meet the requirement of state's four standards.This shows, from 1 day July in 2013, its exhaust emissions of the diesel engine of all new productions must meet state's four emission standards.Equally, must to original only meet state-two or state's three emission standards carrying out upgrading with car, make its requirement that meets state's four Abgasgesetzs, otherwise the control effect that automotive emission is polluted will be had a greatly reduced quality.
Increasingly serious environment situation and increasingly strict exhaust gas from diesel vehicle Abgasgesetz are called more efficient, exhaust gas from diesel vehicle processing method more targetedly.Still can not be replaced completely at current traditional petroleum resources, under the huge social background of Chinese vehicle guaranteeding organic quantity, catalytic conversion technique is to process at present the most effectively mode of automobile exhaust pollution.
Summary of the invention
Problem to be solved by this invention is to provide a kind of metal mold exhaust gas from diesel vehicle catalytic cleaner, can process CO, HC and PM in diesel engine vent gas, significantly improve activity and the efficiency of catalytic cleaner, reduce the accumulation of particulate matter in catalytic cleaner, purification efficiency is high, and purifying effect is obvious.
In order to solve the problems of the technologies described above, the present invention adopts following technological scheme: a kind of metal mold exhaust gas from diesel vehicle catalytic cleaner, comprise housing and be built in the carrier in housing, described carrier comprises the front grade carrier that is positioned at housing front portion and the rear grade carrier that is positioned at housing rear portion, on described front grade carrier, be coated with diesel oil oxidation type catalyst coat, on described rear grade carrier, be coated with particulate oxidation type catalytic purification agent coating.On front grade carrier, be coated with diesel oil oxidation type catalyst coat to process CO and the HC in diesel engine vent gas, on rear grade carrier, be coated with particulate oxidation type catalytic purification agent coating to process the PM in diesel engine vent gas, front grade carrier and rear grade carrier are placed in to a cylindrical shell, simple in structure, processing technology is simple, cost-saving.
Improved, described rear grade carrier is the helix structure that two corrugated sheets one are superimposed, reel and form, and the ripple on arranged in a crossed manner and two corrugated sheets one of ripple when described rear grade carrier launches tiling on two corrugated sheets one and the angle between corrugated sheet one width direction are 30～60 °.The ripple intercross arrangement of two corrugated sheets one has increased the area of contact of tail gas and carrier, angle between ripple on corrugated sheet one and corrugated sheet one width direction is 30～60 ° of times of contact that extended tail gas and rear grade carrier, make the more abundant of catalytic reaction generation, activity and the efficiency of catalytic cleaner are significantly improved, the effectively particulate matter PM in cleaning of off-gas, the accumulation of particulate matter PM on grade carrier after reducing, purification efficiency is high, and purifying effect is obvious.
Improved, described front grade carrier is the helix structure that corrugated sheet two and one flat board is superimposed, reel and form, and ripple when described front grade carrier launches tiling on corrugated sheet two and the angle between corrugated sheet two width directions are 30～60 °.Angle between ripple on corrugated sheet two and corrugated sheet two width directions is 30～60 ° of times of contact that extended tail gas and front grade carrier, make the more abundant of catalytic reaction generation, activity and the efficiency of catalytic cleaner are significantly improved, effectively CO and the HC in cleaning of off-gas.
Improved, the ripple spacing on described corrugated sheet one and corrugated sheet two is 2～8mm, and the ripple height on described corrugated sheet one and corrugated sheet two is 1～2mm.Corrugated sheet has rational air-flow duct after reeling, and ensures that tail gas fully contacts with carrier, makes the more abundant of catalytic reaction generation.
Improved, between described front grade carrier and rear grade carrier, leave the spacing of 10～30mm.The length that reasonably distance makes cylindrical shell can be not long and take too much space, and the tail gas of being simultaneously convenient to after premenstrual grade carrier purifies can evenly flow in rear class carrier, and then make on rear grade carrier catalytic reaction more abundant.
Improved, described housing comprises the suction tude of arranging successively along discharge directions, the air inlet end cap that is connected in suction tude outlet side, the cylindrical shell that is connected in air inlet end cap outlet side, be connected in the end cap and be connected in the steam outlet pipe of the end cap outlet side of giving vent to anger of giving vent to anger of cylindrical shell outlet side, and the inlet end of described suction tude and the outlet side of steam outlet pipe are equipped with flange.
Improved, described carrier is built in cylindrical shell, and the front end of described cylindrical shell exceeds the front end setting of front grade carrier, and the rear end that described cylinder back-end exceeds rear grade carrier arranges.Be convenient to that air-flow is uniformly distributed and being connected of cylindrical shell and air inlet end cap, the end cap of giving vent to anger.
Improved, described barrel front end is 5～15mm to the distance of front grade carrier front end, and described cylinder back-end is 5～15mm to the distance of rear grade carrier rear end.The length that reasonably distance makes cylindrical shell can be not long and take too much space, ensures that air-flow is uniformly distributed simultaneously.
Improved, described air inlet end cap and the end cap of giving vent to anger are cone table shape, and the tapering of described air inlet end cap and the end cap of giving vent to anger is 60 °.Be conducive to tail gas reasonable layout in purifier, make tail gas clean-up effect more even.
Improved, described carrier and cylindrical shell are by the fixing welding of cross pin or vacuum brazing.Easy to connect and firm.
Beneficial effect:
Adopt after technique scheme, a kind of metal mold exhaust gas from diesel vehicle of this invention catalytic cleaner, front grade carrier and rear grade carrier are placed in to a cylindrical shell, simple in structure, processing technology is simple, and can process the CO in diesel engine vent gas simultaneously, HC and PM, the ripple intercross arrangement of two corrugated sheets one has increased the area of contact of tail gas and carrier again, extend the time of contact of tail gas and rear grade carrier, make the more abundant of catalytic reaction generation, activity and the efficiency of catalytic cleaner are significantly improved, reduce the accumulation of particulate matter in catalytic cleaner, purification efficiency is high, purifying effect is obvious.
Brief description of the drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
Fig. 1 is the structural representation of a kind of metal mold exhaust gas from diesel vehicle of the present invention catalytic cleaner;
Fig. 2 is the structural representation of rear class carrier reeling condition;
Fig. 3 is the structural representation that rear grade carrier launches its flat presentation;
Fig. 4 is the structural representation of prime carrier reeling condition.
Embodiment
As shown in Figure 1, a kind of metal mold exhaust gas from diesel vehicle catalytic cleaner, comprise housing 1 and be built in the carrier 2 in housing, described housing comprises the suction tude 11 of arranging successively along discharge directions, be connected in the air inlet end cap 12 of suction tude outlet side, be connected in the cylindrical shell 13 of air inlet end cap outlet side, be connected in give vent to anger end cap 14 and the steam outlet pipe 15 that is connected in the end cap outlet side of giving vent to anger of cylindrical shell outlet side, described air inlet end cap and the end cap of giving vent to anger are cone table shape, the tapering of described air inlet end cap and the end cap of giving vent to anger is 60 °, the inlet end of described suction tude and the outlet side of steam outlet pipe are equipped with flange 3, described carrier is connected in cylindrical shell by the fixing welding of cross pin or vacuum brazing, described carrier comprises the front grade carrier 21 that is positioned at cylindrical shell front portion and the rear grade carrier 22 that is positioned at housing rear portion, on described front grade carrier, be coated with diesel oil oxidation type catalyst coat, on described rear grade carrier, be coated with particulate oxidation type catalytic purification agent coating, front end setting and described barrel front end that the front end of described cylindrical shell exceeds front grade carrier are 5～15mm to the distance of front grade carrier front end, rear end setting and described cylinder back-end that described cylinder back-end exceeds rear grade carrier are 5～15mm to the distance of rear grade carrier rear end, between described front grade carrier and rear grade carrier, leave the spacing of 10～30mm.
As shown in Figures 2 and 3, described rear grade carrier is the helix structure that two corrugated sheets 1 are superimposed, reel and form, ripple on arranged in a crossed manner and two corrugated sheets one of ripple when described rear grade carrier launches tiling on two corrugated sheets one and the angle between corrugated sheet one width direction are 30～60 °, described corrugated sheet one is pressed ripple moulding by wire gaze, the ripple spacing of described corrugated sheet one is 2～8mm, the ripple height of described corrugated sheet one is 1～2mm, the order number of described wire gaze is 80～120 orders, and the string diameter of described wire gaze is 0.05～0.15mm.
As shown in Figure 4, described front grade carrier is the helix structure that a corrugated sheet 2 211 and a flat board 212 are superimposed, reel and form, ripple when described front grade carrier launches tiling on corrugated sheet two and the angle between corrugated sheet two width directions are 30～60 °, described corrugated sheet two is pressed ripple moulding by stainless steel flat plate, the ripple spacing of described corrugated sheet two is 2～8mm, the ripple height of described corrugated sheet two is 1～2mm, described flat board is stainless steel flat plate, and the thickness of described stainless steel flat plate is 0.02～0.06mm.
In the present embodiment, ripple when described rear grade carrier launches tiling on corrugated sheet two and the angle between corrugated sheet two width directions are 45 °, on described corrugated sheet two, ripple spacing is 4mm, the ripple height of described corrugated sheet two is 1.5mm, the order number of described wire gaze is 80 orders, the string diameter 0.1mm of described wire gaze, the width 100mm of described wire gaze; Ripple when described front grade carrier launches tiling on corrugated sheet one and the angle between corrugated sheet one width direction are 45 °, on described corrugated sheet one, ripple spacing is 3mm, the ripple height of described corrugated sheet one is 1.5mm, the thickness of described stainless steel flat plate is 0.04mm, and described front grade carrier has 240 orders.
A kind of metal mold exhaust gas from diesel vehicle catalytic cleaner making under above-mentioned precondition is arranged on the diesel engine engineering truck of 7.8L discharge capacity, purifying effect as shown in Table 1:
| Pollutant | Before purification | After purification | Purification efficiency |
| CO(g/Km) | 4.36 | 0.51 | 88.30％ |
| HC(g/Km) | 0.73 | 0.10 | 86.30％ |
| PM2.5(mg/m 3) | 16127 | 3760 | 76.69％ |
| NO x(g/Km) | 0.36 | 0.34 | —— |
Table one: a kind of metal mold exhaust gas from diesel vehicle catalytic cleaner purifying effect data
Except above preferred embodiment, the present invention also has other mode of execution, and those skilled in the art can make according to the present invention various changes and distortion, only otherwise depart from spirit of the present invention, all should belong to the defined scope of claims of the present invention.
Claims (10)
1. a metal mold exhaust gas from diesel vehicle catalytic cleaner, comprise housing (1) and be built in the carrier (2) in housing, it is characterized in that: described carrier comprises the front grade carrier (21) that is positioned at housing front portion and the rear grade carrier (22) that is positioned at housing rear portion, on described front grade carrier, be coated with diesel oil oxidation type catalyst coat, on described rear grade carrier, be coated with particulate oxidation type catalytic purification agent coating.
2. a kind of metal mold exhaust gas from diesel vehicle catalytic cleaner according to claim 1, it is characterized in that: described rear grade carrier is the helix structure that two corrugated sheets one (221) are superimposed, reel and form, the ripple on arranged in a crossed manner and two corrugated sheets one of ripple when described rear grade carrier launches tiling on two corrugated sheets one and the angle between corrugated sheet one width direction are 30～60 °.
3. a kind of metal mold exhaust gas from diesel vehicle catalytic cleaner according to claim 2, it is characterized in that: described front grade carrier is the helix structure that corrugated sheet two (211) and one flat board (212) is superimposed, reel and form, and ripple when described front grade carrier launches tiling on corrugated sheet two and the angle between corrugated sheet two width directions are 30～60 °.
4. a kind of metal mold exhaust gas from diesel vehicle catalytic cleaner according to claim 3, is characterized in that: the ripple spacing on described corrugated sheet one and corrugated sheet two is 2～8mm, and the ripple height on described corrugated sheet one and corrugated sheet two is 1～2mm.
5. according to the arbitrary described a kind of metal mold exhaust gas from diesel vehicle catalytic cleaner of claim 1 to 4, it is characterized in that: the spacing that leaves 10～30mm between described front grade carrier and rear grade carrier.
6. according to the arbitrary described a kind of metal mold exhaust gas from diesel vehicle catalytic cleaner of claim 1 to 4, it is characterized in that: described housing comprises the suction tude (11) of arranging successively along discharge directions, the air inlet end cap (12) that is connected in suction tude outlet side, the cylindrical shell (13) that is connected in air inlet end cap outlet side, the end cap of giving vent to anger (14) that is connected in cylindrical shell outlet side and the steam outlet pipe (15) that is connected in the end cap outlet side of giving vent to anger, and the inlet end of described suction tude and the outlet side of steam outlet pipe are equipped with flange (3).
7. a kind of metal mold exhaust gas from diesel vehicle catalytic cleaner according to claim 6, is characterized in that: described carrier is built in cylindrical shell, and the front end of described cylindrical shell exceeds the front end setting of front grade carrier, and the rear end that described cylinder back-end exceeds rear grade carrier arranges.
8. a kind of metal mold exhaust gas from diesel vehicle catalytic cleaner according to claim 7, is characterized in that: described barrel front end is 5～15mm to the distance of front grade carrier front end, and described cylinder back-end is 5～15mm to the distance of rear grade carrier rear end.
9. a kind of metal mold exhaust gas from diesel vehicle catalytic cleaner according to claim 6, is characterized in that: described air inlet end cap and the end cap of giving vent to anger are cone table shape, and the tapering of described air inlet end cap and the end cap of giving vent to anger is 60 °.
10. a kind of metal mold exhaust gas from diesel vehicle catalytic cleaner according to claim 6, is characterized in that: described carrier and cylindrical shell are by the fixing welding of cross pin or vacuum brazing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410224709.XA CN104047686A (en) | 2014-05-23 | 2014-05-23 | Metal type diesel vehicle tail gas catalytic cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410224709.XA CN104047686A (en) | 2014-05-23 | 2014-05-23 | Metal type diesel vehicle tail gas catalytic cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104047686A true CN104047686A (en) | 2014-09-17 |
Family
ID=51501021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410224709.XA Pending CN104047686A (en) | 2014-05-23 | 2014-05-23 | Metal type diesel vehicle tail gas catalytic cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104047686A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038138A (en) * | 1988-05-28 | 1989-12-20 | Basf公司 | The colouring method of natural or synthesizing polyamides |
| US20050096218A1 (en) * | 2002-04-18 | 2005-05-05 | Emitec Gesellschaft Fur Emissionstechnologie Mbh | Calibrated catalyst carrier body with corrugated casing and method for manufacturing the same |
| CN101646844A (en) * | 2007-04-03 | 2010-02-10 | 洋马株式会社 | Black exhaust purification apparatus for diesel engine |
| CN201546792U (en) * | 2008-10-13 | 2010-08-11 | 福特环球技术公司 | Combined exhaust-air purification system |
| CN203822429U (en) * | 2014-05-23 | 2014-09-10 | 浙江达峰汽车技术有限公司 | Metal type diesel vehicle tail gas catalytic cleaner |
-
2014
- 2014-05-23 CN CN201410224709.XA patent/CN104047686A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038138A (en) * | 1988-05-28 | 1989-12-20 | Basf公司 | The colouring method of natural or synthesizing polyamides |
| US20050096218A1 (en) * | 2002-04-18 | 2005-05-05 | Emitec Gesellschaft Fur Emissionstechnologie Mbh | Calibrated catalyst carrier body with corrugated casing and method for manufacturing the same |
| CN101646844A (en) * | 2007-04-03 | 2010-02-10 | 洋马株式会社 | Black exhaust purification apparatus for diesel engine |
| CN201546792U (en) * | 2008-10-13 | 2010-08-11 | 福特环球技术公司 | Combined exhaust-air purification system |
| CN203822429U (en) * | 2014-05-23 | 2014-09-10 | 浙江达峰汽车技术有限公司 | Metal type diesel vehicle tail gas catalytic cleaner |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140917 |
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| RJ01 | Rejection of invention patent application after publication |