CN201574805U - Composite ternary catalyst - Google Patents
Composite ternary catalyst Download PDFInfo
- Publication number
- CN201574805U CN201574805U CN2009201328446U CN200920132844U CN201574805U CN 201574805 U CN201574805 U CN 201574805U CN 2009201328446 U CN2009201328446 U CN 2009201328446U CN 200920132844 U CN200920132844 U CN 200920132844U CN 201574805 U CN201574805 U CN 201574805U
- Authority
- CN
- China
- Prior art keywords
- carrier
- ceramic
- catalyzing unit
- ternary catalyzing
- 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
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 12
- 239000002131 composite material Substances 0.000 title abstract 3
- 239000000919 ceramic Substances 0.000 claims abstract description 35
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 11
- 239000010935 stainless steel Substances 0.000 claims abstract description 11
- 229910052878 cordierite Inorganic materials 0.000 claims abstract description 4
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical group [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract 6
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000013016 damping Methods 0.000 abstract 1
- 230000000977 initiatory effect Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
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)
Abstract
The utility model provides a composite ternary catalyst which comprises a shell body, a vibration damping gasket and a carrier with a catalyst coating. The carrier is selected from a ceramic carrier or a metal carrier. The composite ternary catalyst is characterized in that the ceramic carrier is wrapped by the metal carrier and is then encapsulated with the shell body. The metal carrier is directly welded with the shell body to prevent movement, and a baffle is respectively welded in the front and at the rear to prevent the movement of the ceramic carrier. The ceramic carrier is a cordierite one. The shell body is made of stainless steel. The ceramic carrier is wrapped by the metal carrier and is then encapsulated with a stainless steel shell. As the heat absorbing capability of the metal carrier is strong, the combustion initiating time of the catalyst when in cold start can be shortened and the pollutant emission in cold start can be reduced at the same time; moreover, due to low back pressure, the metal carrier can prevent blastation. The time for the ternary catalyst to reach normal working temperature is shortened, and the pollutant emission of automobiles is reduced.
Description
Technical field
The utility model relates to a kind of engine exhaust pollution control device, relates to a kind of compound ternary catalyzing unit particularly.
Background technique
Ternary catalyzing unit is to adopt catalyzer to come the device of the harmful components such as CO, HC, NOx in the cleaning internal combustion engines exhaust gases.Generally, catalyst converter is made up of the carrier of housing, cushion packing and band catalyst coat, and carrier generally is ceramic monolith or metallic carrier, and perhaps metallic carrier and ceramic monolith are placed before and after being.
Chinese patent CN200520010393.0 discloses a kind of motor car engine ternary catalyzing unit, include housing, ternary catalyzing unit core and liner, the housing middle part is the single thin layer wall construction, at the two ends of housing is the place ahead and rear loudspeaker part with dissection of ternary catalyzing unit core, and the loudspeaker part is by skin, insulation layer and internal layer constitutes, insulation layer adopts and resolves hot material to keep delivery temperature.
Chinese patent CN200620102672.4 discloses a kind of improvement of petrol engine ternary catalyzing unit structure, comprise the stainless steel front and rear cover, stainless steel cylinder, ceramic monolith, the ceramic seal liner, lambda sensor, stainless exhaust manifold, ceramic monolith is wrapped up by the ceramic seal liner in the stainless steel cylinder, the stainless steel cylinder rear and front end is by the capping of stainless steel front and rear cover, stainless exhaust manifold is picked out by the cylinder head of motor, lambda sensor is arranged on the front and rear cover sphere, it is characterized in that: described stainless exhaust manifold inserts in first spherical front cover of cylindrical shell asymmetricly.
Along with the raising of discharging standards, more and more stricter to the requirement of motor vehicle exhaust emission.And in the motor vehicle exhaust emission process, the pollutant emission when cold machine starts is the stage occurred frequently.Because this moment, ternary catalyzing unit did not have ignition, most of pollutant does not directly enter atmosphere through purified treatment.Light-off time is exactly a key point that solves the motor vehicle exhaust emission problem when therefore, how to shorten the ternary catalyzing unit cold start-up.At present, not only there is the installation difficulty, and increases the drawback of exhaust back pressure with the resistance wire heating.
Summary of the invention
The purpose of this utility model provides a kind of compound ternary catalyzing unit, solves the slow problem of ceramic monolith ternary catalyzing unit cold start-up ignition, quickens ternary catalyzing unit and enters normal working temperature.Shorten ternary catalyzing unit and enter the normal working temperature time, reduce the discharging of auto-pollution thing.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of compound ternary catalyzing unit, comprise that the carrier of housing, cushion packing and band catalyst coat is formed, and described carrier is selected from ceramic monolith or metallic carrier; It is characterized in that: described ceramic monolith is wrapped up by metallic carrier, encapsulates upper shell again.
Metallic carrier directly welds with housing and prevents from its play from respectively to weld a baffle plate again in front and back, prevents the ceramic monolith play.
Described ceramic monolith is the cordierite ceramic carrier.Described housing is a Stainless Steel Shell.
Good effect of the present utility model: ceramic monolith is wrapped up by metallic carrier, and stainless steel casing is gone up in encapsulation again, and pottery, metallic carrier are to design with the position.The metallic carrier heat absorbing property is stronger, the light-off time of catalyst converter in the time of can shortening cold starting, and the pollutant emission when reducing cold starting, the back pressure of metallic carrier is lower, can also prevent by deflation.Shorten ternary catalyzing unit and enter the normal working temperature time, reduce the discharging of auto-pollution thing.
If all adopt metallic carrier, can also shorten light-off time, back pressure is also lower, but cost is 5～8 times of ceramic monolith; The ignition speed of ceramic monolith is slow, back pressure is higher, but cost is very low; The catalytic converter assembly that the mode that adopts metallic carrier to wrap up ceramic monolith is made, ignition speed is lower than ceramic monolith than ceramic monolith shortening, back pressure, can also save the cost of liner, and the cost of this mode is more much lower than adopting metallic carrier.The comprehensive good cost performance of this kind mode.
Below with reference to drawings and Examples, the utility model is carried out comparatively detailed explanation.
Description of drawings
Fig. 1 is compound ternary catalyzing unit structure cutaway view.
Fig. 2 is the transverse sectional view of Fig. 1.Illustrate compound ternary catalyzing unit internal structure.
Among the figure: 1. housing, 2. metallic carrier, 3. ceramic monolith, 4. baffle plate.
Embodiment
Embodiment, as shown in Figure 1, 2, a kind of compound ternary catalyzing unit comprises that the carrier of housing 1, cushion packing and band catalyst coat is formed, described carrier is selected from ceramic monolith 3 or metallic carrier 2.Described ceramic monolith 3 is wrapped up by metallic carrier 2, encapsulates upper shell 1 again.Metallic carrier 2 directly welds with housing 1 and prevents from its play from respectively to weld one three fork-shaped baffle plate 4 again in front and back, prevents the ceramic monolith play.
Described ceramic monolith is the cordierite ceramic carrier.Described housing is a Stainless Steel Shell.
The ratio of described metallic carrier and ceramic monolith is 1: 2--2.5.At this moment cost performance is the highest.
Claims (5)
1. a compound ternary catalyzing unit comprises that the carrier of housing, cushion packing and band catalyst coat is formed, and described carrier is selected from ceramic monolith or metallic carrier; It is characterized in that: described ceramic monolith is wrapped up by metallic carrier, encapsulates upper shell again.
2. compound ternary catalyzing unit according to claim 1 is characterized in that: the direct and housing welding of described metallic carrier, before and after carrier, respectively weld a baffle plate again.
3. compound ternary catalyzing unit according to claim 2 is characterized in that: described baffle plate is three fork-shapeds.
4. compound ternary catalyzing unit according to claim 1 and 2 is characterized in that: described ceramic monolith is the cordierite ceramic carrier, and described housing is a Stainless Steel Shell.
5. compound ternary catalyzing unit according to claim 1 is characterized in that: the ratio of described metallic carrier and ceramic monolith is 1: 2--2.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201328446U CN201574805U (en) | 2009-06-12 | 2009-06-12 | Composite ternary catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201328446U CN201574805U (en) | 2009-06-12 | 2009-06-12 | Composite ternary catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201574805U true CN201574805U (en) | 2010-09-08 |
Family
ID=42694681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201328446U Expired - Fee Related CN201574805U (en) | 2009-06-12 | 2009-06-12 | Composite ternary catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201574805U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103429866A (en) * | 2010-12-06 | 2013-12-04 | 格林环境有限公司 | System and method for improving fuel efficiency |
| CN108798837A (en) * | 2018-06-11 | 2018-11-13 | 刁川川 | A kind of device improving automobile engine using new energy resources effects of energy saving and emission reduction |
| CN111206978A (en) * | 2020-02-09 | 2020-05-29 | 太仓丹妮尔模塑汽配有限公司 | Automobile exhaust pipe with high purification efficiency and low air resistance |
-
2009
- 2009-06-12 CN CN2009201328446U patent/CN201574805U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103429866A (en) * | 2010-12-06 | 2013-12-04 | 格林环境有限公司 | System and method for improving fuel efficiency |
| CN103429866B (en) * | 2010-12-06 | 2018-04-24 | 格林环境有限公司 | For improving the system and method for fuel efficiency |
| CN108798837A (en) * | 2018-06-11 | 2018-11-13 | 刁川川 | A kind of device improving automobile engine using new energy resources effects of energy saving and emission reduction |
| CN111206978A (en) * | 2020-02-09 | 2020-05-29 | 太仓丹妮尔模塑汽配有限公司 | Automobile exhaust pipe with high purification efficiency and low air resistance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20130612 |