CN101666256B - Diesel SCR catalytic muffler - Google Patents
Diesel SCR catalytic muffler Download PDFInfo
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- CN101666256B CN101666256B CN200910182887XA CN200910182887A CN101666256B CN 101666256 B CN101666256 B CN 101666256B CN 200910182887X A CN200910182887X A CN 200910182887XA CN 200910182887 A CN200910182887 A CN 200910182887A CN 101666256 B CN101666256 B CN 101666256B
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- staving
- barrel body
- outlet pipe
- scr catalytic
- catalytic muffler
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- Exhaust Gas After Treatment (AREA)
Abstract
The invention relates to an exhaust gas muffler device, in particular to a diesel SCR catalytic muffler. According to the technical scheme provided by the invention, the diesel SCR catalytic muffler comprises an air inlet pipe, an air outlet pipe, a middle barrel body and a catalytic converter arranged in the middle barrel body, wherein the catalytic converter is arranged in the middle barrel body through a gasket, a front barrel body and a rear barrel body are arranged on both ends of the middle barrel body which is mutually connected with the front barrel body and the rear barrel body through anchor ears, one end of the air inlet pipe is arranged in the front barrel body, and the other end of the air inlet pipe is fixedly connected with the front barrel body; a partition panel is arranged in the rear barrel body, one end of the air outlet pipe penetrates through the rear barrel body and then is fixedly connected with the partition panel, the air outlet pipe is fixedly connected with the rear barrel body, and the partition panel is provided with a plurality of holes. The invention has the advantages of low cost, convenience in installation and maintenance, and favorable performance in catalysis and muffling.
Description
Technical field
The present invention relates to a kind of exhaust gas muffler device, especially a kind of diesel SCR (selective catalytic conversion system) catalytic muffler.
Background technique
At present, follow the fast development of Motor Vehicle, produced serious pollution of atmosphere, and present region composite type characteristics.Many metropolitan pollution of atmosphere turn to coal smoke and automotive composite type to pollute by coal-smoke pollution, and the minority megalopolis has obviously shown the pollution of atmosphere of photochemical smog type (being the motor-vehicle tail-gas type).Therefore, to the research of exhaust gas from diesel vehicle exhaust emission control technique and important, and extremely urgent.
From the development of commercial car, diesel engine is its major impetus.The general supercharging technology diesel-oil vehicle that adopts can satisfy the emission request in I stage, and the II stage has been adopted charge inter cooling, and the III stage has been introduced the electronic fuel injection technology, and the IV stage need be carried out reprocessing to exhaust on above-mentioned technical foundation.
Exhaust after treatment system in IV stage emission control mainly contains two technology paths: (1) selects catalytic reduction reaction to reduce the NOx discharging by optimizing motor (the emission controls by improving combustion technology is optimized oil spout, optimized combustion etc.) reduction PM (solid particle) discharging+SCR (selective catalytic reduction effect).(2) adopt EGR (exhaust gas recycling system) waste gas to reduce NOx discharging+employing particulate trap and reduce the PM discharging at circulating technology.Be more prone to use first kind of scheme at present.
Catalytic muffler is parts very crucial in the SCR system.At present, the catalytic muffler of domestic design is shortage relatively, and the catalytic muffler cost height of use is installed and the maintenance inconvenience.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of diesel SCR catalytic muffler is provided, it is with low cost, and installation and maintenance are convenient, and catalysis and acoustic attenuation performance are good.
According to technological scheme provided by the invention, a kind of diesel SCR catalytic muffler comprises suction tude and steam outlet pipe, middle staving and be arranged in the catalyst converter of staving; Described catalyst converter utilizes liner to be installed in the middle staving, staving and back staving before the two ends of staving are provided with in described, staving and preceding staving and back staving utilize anchor ear to interconnect in described, one end of suction tude is positioned at preceding staving, the other end is fixedlyed connected with preceding staving, is provided with dividing plate in the staving of described back, and an end of described steam outlet pipe passes the back staving and fixedlys connected with dividing plate, described steam outlet pipe is fixedlyed connected with the back staving, and described dividing plate is provided with some through holes.
The outer wall of staving was provided with inlet hole before described suction tude was positioned at.The outer wall that described steam outlet pipe is positioned at the back staving is provided with air outlet hole.Staving is provided with front cover corresponding to the other end that is connected with middle staving before described.The end face of described back staving is provided with rear end cover.Described steam outlet pipe is provided with block temperature sensor and NO
xSensor holder.Described catalyst converter is that the surface scribbles NO
xThe metal or the ceramic body of SCR catalyzer.
Advantage of the present invention: the present invention is simple and reasonable, and is with low cost, and finishing and convenient disassembly have catalysis preferably and acoustic attenuation performance.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in Figure 1: the present invention includes front cover 1, preceding staving 2, suction tude 3, anchor ear 4, middle staving 5, catalyst converter 6, liner 7, dividing plate 8, back staving 9, steam outlet pipe 10, rear end cover 11, block temperature sensor 12 and NO
x Sensor holder 13 is formed.
Staving 2 and back staving 9 before the two ends of staving 5 are provided with in described, preceding staving 2 and back staving 9 utilize anchor ear 4 and middle staving 5 to interconnect.Staving 2 is provided with front cover 1 corresponding to the other end that is connected with middle staving 5 before described, and an end of suction tude 3 is positioned at preceding staving 2, and described suction tude 3 is fixedlyed connected with preceding staving 2.The outer wall of staving 2 was provided with inlet hole 17 before described suction tude 3 was positioned at.Described catalyst converter 6 utilizes liner 7 to be installed in the middle staving 5.Described catalyst converter 6 scribbles the metal or the ceramic monolith of catalyzer for the surface.Catalyzer is used for catalyzing N O
xChemical reaction.6 of described front cover 1 and catalyst converters form first expansion chamber 14.
Be provided with dividing plate 8 in the staving 9 of described back, an end of described steam outlet pipe 10 passes back staving 9 and fixedlys connected with dividing plate 8, and described steam outlet pipe 10 is fixedlyed connected with back staving 9.On the described dividing plate 8 except that with part that steam outlet pipe 10 is connected be provided with air outlet hole.The outer wall that described steam outlet pipe 10 is positioned at back staving 9 is provided with some through holes 18.Described steam outlet pipe 10 is provided with block temperature sensor 12 and NO
xSensor holder 13.8 on described catalyst converter 6 and dividing plate form second expansion chamber 15, and 11 of described dividing plate 8 and rear end covers form the 3rd expansion chamber 16.Described first expansion chamber 14 is communicated with the pore of second expansion chamber 15 by 6 of catalyst converters, and described second expansion chamber 15 is communicated with by the through hole on the dividing plate 8 with the 3rd expansion chamber 16.Described block temperature sensor 12 and NO
x Sensor holder 13 is used for mounting temperature sensor and NO
xSensor.
During use, gas is entered by suction tude 3, and in the staving 2, gas is evenly distributed on the catalyst converter 6 after expanding in first expansion chamber 14 before entering by inlet hole 17.Fully contact the catalyzer of the inside during the aperture of gas by catalyst converter 6 intermediate elongated, gas reacts under the effect of catalyzer, makes NO in the gas
xContent descend.Gas enters second expansion chamber 15 after by catalyst converter 6, and gas enters the 3rd expansion chamber 16 in second expansion chamber 15 back of expanding by the through hole on the dividing plate 8, and after expanding the 3rd expansion chamber 16 in, gas is in air outlet hole 18 enters steam outlet pipe 10, through steam outlet pipe 10 discharges.
Claims (7)
1. diesel SCR catalytic muffler, comprise suction tude (3), steam outlet pipe (10), middle staving (5) and be arranged in the catalyst converter (6) of staving (5), it is characterized in that: described catalyst converter (6) utilizes liner (7) to be installed in the middle staving (5), and the two ends of described middle staving (5) are provided with preceding staving (2) and back staving (9); Staving (5) utilizes anchor ear (4) to interconnect with preceding staving (2) and back staving (9) in described; One end of suction tude (3) is positioned at preceding staving (2), and the other end is fixedlyed connected with preceding staving (2); Be provided with dividing plate (8) in the described back staving (9), an end of described steam outlet pipe (10) passes back staving (9) and fixedlys connected with dividing plate (8), and described steam outlet pipe (10) is fixedlyed connected with back staving (9), and described dividing plate (8) is provided with some through holes.
2. diesel SCR catalytic muffler according to claim 1 is characterized in that: the outer wall that described suction tude (3) is positioned at preceding staving (2) is provided with inlet hole (17).
3. diesel SCR catalytic muffler according to claim 1 is characterized in that: the outer wall that described steam outlet pipe (10) is positioned at back staving (9) is provided with air outlet hole (18).
4. diesel SCR catalytic muffler according to claim 1 is characterized in that: staving (2) is provided with front cover (1) corresponding to the other end that is connected with middle staving (5) before described.
5. diesel SCR catalytic muffler according to claim 1 is characterized in that: the end face of described back staving (9) is provided with rear end cover (11).
6. diesel SCR catalytic muffler according to claim 1 is characterized in that: described steam outlet pipe (10) is provided with block temperature sensor (12) and NO
xSensor holder (13).
7. diesel SCR catalytic muffler according to claim 1 is characterized in that: described catalyst converter (6) scribbles NO for the surface
xThe metal or the ceramic body of SCR catalyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910182887XA CN101666256B (en) | 2009-09-09 | 2009-09-09 | Diesel SCR catalytic muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910182887XA CN101666256B (en) | 2009-09-09 | 2009-09-09 | Diesel SCR catalytic muffler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101666256A CN101666256A (en) | 2010-03-10 |
| CN101666256B true CN101666256B (en) | 2011-11-30 |
Family
ID=41803016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910182887XA Active CN101666256B (en) | 2009-09-09 | 2009-09-09 | Diesel SCR catalytic muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101666256B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278180A (en) * | 2011-05-19 | 2011-12-14 | 刘光文 | Exhaust gas catalytic purification silencer of engine |
| CN102392725A (en) * | 2011-11-14 | 2012-03-28 | 潍柴动力股份有限公司 | Connection device and diesel engine |
| CN102410069A (en) * | 2011-11-24 | 2012-04-11 | 杭州银轮科技有限公司 | SCR (Selective Catalytic Reduction) catalytic conversion muffler |
| CN102817680A (en) * | 2012-08-30 | 2012-12-12 | 无锡市凯龙汽车设备制造有限公司 | Square box type small-carrier catalysis silencer |
-
2009
- 2009-09-09 CN CN200910182887XA patent/CN101666256B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101666256A (en) | 2010-03-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: KAILONG HIGH TECHNOLOGY CO., LTD. Free format text: FORMER NAME: KAILONG AUTOMOBILE EQUIPMENT MANUFACTURING CO., LTD., WUXI CITY |
|
| CP03 | Change of name, title or address |
Address after: 214000 Jiangsu city in Wuxi Province Economic Development Zone Huishan Qianqiao Temple Tangqiao supporting area Patentee after: Kailong High Technology Co., Ltd. Address before: Weifu Industrial Park of Huishan District of Huishan Economic Development Zone 214174 Jiangsu city of Wuxi province Wuxi Kailong Automobile Equipment Manufacturing Co Ltd Patentee before: Wuxi Kailong Bus Equipment Manufacturing Co., Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Diesel engine SCR catalytic muffler Effective date of registration: 20210727 Granted publication date: 20111130 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi Xishan branch Pledgor: KAILONG HIGH TECHNOLOGY Co.,Ltd. Registration number: Y2021320010276 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |