CN202745971U - Square-box type small carrier catalytic muffler - Google Patents
Square-box type small carrier catalytic muffler Download PDFInfo
- Publication number
- CN202745971U CN202745971U CN201220437443.3U CN201220437443U CN202745971U CN 202745971 U CN202745971 U CN 202745971U CN 201220437443 U CN201220437443 U CN 201220437443U CN 202745971 U CN202745971 U CN 202745971U
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- China
- Prior art keywords
- expansion chamber
- vectorette
- catalytic
- end cover
- cylindrical shell
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- 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 - Lifetime
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Abstract
The utility model discloses a square-box type small carrier catalytic muffler, which comprises a barrel, a front end cover and a rear end cover, wherein the front end cover and the rear end cover are packaged at two ends of the barrel. A first baffle plate and a second baffle plate are arranged in the barrel, a first expansion chamber is formed between the first baffle plate and the front end cover, and a second expansion chamber is formed between the second baffle plate and the rear end cover. A through hole is formed in the second baffle plate and is used for communicating the second expansion chamber with a third expansion chamber. An air inlet pipe is arranged in the first expansion chamber, and an air inlet hole is formed in the air inlet pipe. Multiple groups of small carrier catalytic components are packaged in the second expansion chamber in parallel, and the first expansion chamber is communicated with the second expansion chamber through the small carrier catalytic components. An air outlet pipe penetrates through the third expansion chamber. The catalytic muffler adopts multiple-group small carrier parallel packaging and has the advantages of low cost, good packaging process and good catalyzing and muffling performances.
Description
Technical field
The utility model relates to a kind of exhaust gas muffler device, relates in particular to a kind of square chest type vectorette catalytic muffler for selective catalytic conversion system of diesel engine (SCR, Selective Catalyst Reduction).
Background technique
Along with the increasingly stringent of Abgasgesetz, control techniques has begun to seem unable to do what one wishes in the diesel engine, must rely on the diesel emission post-processing technology to reduce the discharging of NOx and PM.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 photochemical smog type (being the motor-vehicle tail-gas type) pollution of atmosphere.Therefore, the research of Diesel Emission Control Technologies: and important and extremely urgent.
Selective catalytic reduction system operating SCR(Selective Catalyst Reduction) is a processing system to downstream working medium, its principle is exactly to spray into ammonia in containing the tail gas of NOx, urea or other nitrogen-containing compound, make NOx wherein be reduced into N2 and water, be used at present in the diesel engine vent gas processing procedure.
Catalytic muffler is parts very crucial in the SCR system, an its all-in-one-piece catalysis and silencer, be contained in the stainless steel casing of a sealing, have catalysis and noise elimination function, package structure from the market square chest type catalytic muffler, all adopt the encapsulation scheme of import larger vector, caused packaging cost high.
The model utility content
The purpose of this utility model is to provide a kind of square chest type vectorette catalytic muffler, and it has, and cost is low, packaging technology good and catalysis and the good characteristics of acoustic attenuation performance, to solve the problem that catalytic muffler exists in the prior art.
For reaching this purpose, the utility model by the following technical solutions:
A kind of square chest type vectorette catalytic muffler, it comprise cylindrical shell and be encapsulated in the cylindrical shell two ends before, rear end cover, wherein, be provided with the first dividing plate and second partition in the described cylindrical shell, form the first expansion chamber between described the first dividing plate and the front cover, form the second expansion chamber between described second partition and the first dividing plate, form the 3rd expansion chamber between described second partition and the rear end cover, offering through hole on the described second partition is connected the second expansion chamber and the 3rd expansion chamber, be provided with suction tude in described the first expansion chamber, offer inlet hole on the described suction tude, be packaged with side by side many group vectorette catalytic modules in described the second expansion chamber from top to bottom, described the first expansion chamber and the second expansion chamber are connected by the vectorette catalytic module, steam outlet pipe passes the 3rd expansion chamber, the one end stretches in the second expansion chamber and sets out pore, and the other end stretches out outside the rear end cover.
Especially, described vectorette catalytic module comprises the catalysis cylindrical shell and is arranged at catalyst converter in the catalysis cylindrical shell, and between described catalysis cylindrical shell and the catalyst converter liner is set, described the first expansion chamber and the second expansion chamber are connected by the pore between the catalyst converter.
Especially, described steam outlet pipe stretches out temperature transducer fitting seat and the NOx sensor installation seat that is provided for mounting temperature sensor and NOx sensor on the part of rear end cover.
Especially, described vectorette catalytic module and the first dividing plate and second partition are welded to connect.
Especially, adopt undercut or welding to encapsulate between described cylindrical shell and the forward and backward end cap.
Especially, described catalyst converter is metal or the ceramic monolith that scribbles catalyzer.
Especially, described suction tude blowing angle is 180-245 °, has to eliminate the noise and diffusion.
The beneficial effects of the utility model are, compared with prior art described square chest type vectorette catalytic muffler can make air current flow good, so that low the back of pressure, the air inlet diffusion design makes the catalytic performance excellence, substitutes traditional larger vectors with arranged side by side encapsulation of many group vectorettes, be catalysis noise elimination integrated design, realizing equal catalysis soundproof effect and in the situation that do not change original catalytic muffler boundary dimension, greatly reducing packaging cost, packaging technology is good.
Description of drawings
Fig. 1 is the structural representation of the square chest type vectorette catalytic muffler that provides of the utility model embodiment 1.
Embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.
See also shown in Figure 1ly, Fig. 1 is the structural representation of the square chest type vectorette catalytic muffler that provides of the utility model embodiment 1.
In the present embodiment, a kind of square chest type vectorette catalytic muffler comprises cylindrical shell 1, the two ends welding of described cylindrical shell 1 is packaged with front cover 2 and rear end cover 3, be provided with the first dividing plate 4 and second partition 5 in the described cylindrical shell 1, form the first expansion chamber 6 between described the first dividing plate 4 and the front cover 2, form the second expansion chamber 7 between described second partition 5 and the first dividing plate 4, form the 3rd expansion chamber 8 between described second partition 5 and the rear end cover 3, offering through hole on the described second partition 5 is connected the second expansion chamber 7 and the 3rd expansion chamber 8, be provided with suction tude 9 in described the first expansion chamber 6, offer inlet hole 10 on the described suction tude 9, the blowing angle of described suction tude 9 is 180-245 °, have and eliminate the noise and diffusion, be packaged with side by side many group vectorette catalytic modules in described the second expansion chamber 7 from top to bottom, described vectorette catalytic module and the first dividing plate 4 and second partition 5 are welded to connect, described vectorette catalytic module comprises catalysis cylindrical shell 11 and is arranged at catalyst converter 12 in the catalysis cylindrical shell 11, between described catalysis cylindrical shell 11 and the catalyst converter 12 liner 13 is set, described the first expansion chamber 6 and the second expansion chamber 7 are connected by the pore between the catalyst converter 12, described catalyst converter 12 is for scribbling the ceramic monolith of catalyzer, steam outlet pipe 14 passes the 3rd expansion chamber 8, the one end stretches in the second expansion chamber 7 and sets out pore 15, and the other end stretches out outside the rear end cover 3.
Described steam outlet pipe 14 stretches out temperature transducer fitting seat 17 and the NOx sensor installation seat 16 that is provided for mounting temperature sensor and NOx sensor on the part of rear end cover 3.
During work, gas is entered by suction tude 9, by the mixed gas diffusion of inlet hole 10 with gas and ammonia, gas expands in the first expansion chamber 6, then be evenly distributed on the catalyst converter 12, the catalyzer that fully contacts the inside during aperture by catalyst converter 12 intermediate elongated reacts Nox is descended, gas flows out and to enter the second expansion chamber 7 behind the catalyst converter 12 and expand, enter the 3rd expansion chamber 8 through the hole of beating on the second partition 5 and expand, finally by air outlet hole 15 by steam outlet pipe 14 discharges.
Above-mentioned square chest type vectorette catalytic muffler adopts many group vectorettes to encapsulate side by side, is realizing equal catalysis soundproof effect and in the situation that do not change original catalytic muffler boundary dimension, is greatly reducing packaging cost, and packaging technology is good.
Above embodiment has just set forth basic principle of the present utility model and characteristic; the utility model is not limited by above-mentioned example; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various variations and change, and these variations and change all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. square chest type vectorette catalytic muffler, it comprise cylindrical shell and be encapsulated in the cylindrical shell two ends before, rear end cover, it is characterized in that, be provided with the first dividing plate and second partition in the described cylindrical shell, form the first expansion chamber between described the first dividing plate and the front cover, form the second expansion chamber between described second partition and the first dividing plate, form the 3rd expansion chamber between described second partition and the rear end cover, offering through hole on the described second partition is connected the second expansion chamber and the 3rd expansion chamber, be provided with suction tude in described the first expansion chamber, offer inlet hole on the described suction tude, be packaged with side by side many group vectorette catalytic modules in described the second expansion chamber from top to bottom, described the first expansion chamber and the second expansion chamber are connected by the vectorette catalytic module, steam outlet pipe passes the 3rd expansion chamber, the one end stretches in the second expansion chamber and sets out pore, and the other end stretches out outside the rear end cover.
2. square chest type vectorette catalytic muffler according to claim 1, it is characterized in that, described vectorette catalytic module comprises the catalysis cylindrical shell and is arranged at the interior catalyst converter of catalysis cylindrical shell, between described catalysis cylindrical shell and the catalyst converter liner is set, described the first expansion chamber and the second expansion chamber are connected by the pore between the catalyst converter.
3. square chest type vectorette catalytic muffler according to claim 1 is characterized in that, described steam outlet pipe stretches out temperature transducer fitting seat and the NOx sensor installation seat that is provided for mounting temperature sensor and NOx sensor on the part of rear end cover.
4. each described square chest type vectorette catalytic muffler according to claim 1 and 2 is characterized in that, described vectorette catalytic module and the first dividing plate and second partition are welded to connect.
5. square chest type vectorette catalytic muffler according to claim 1 is characterized in that, adopts undercut or welding to encapsulate between described cylindrical shell and the forward and backward end cap.
6. square chest type vectorette catalytic muffler according to claim 2 is characterized in that, described catalyst converter is metal or the ceramic monolith that scribbles catalyzer.
7. square chest type vectorette catalytic muffler according to claim 1 is characterized in that, described suction tude blowing angle is 180-245 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220437443.3U CN202745971U (en) | 2012-08-30 | 2012-08-30 | Square-box type small carrier catalytic muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220437443.3U CN202745971U (en) | 2012-08-30 | 2012-08-30 | Square-box type small carrier catalytic muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745971U true CN202745971U (en) | 2013-02-20 |
Family
ID=47705383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220437443.3U Expired - Lifetime CN202745971U (en) | 2012-08-30 | 2012-08-30 | Square-box type small carrier catalytic muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745971U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109069997A (en) * | 2015-09-30 | 2018-12-21 | 罗伯特·博世有限公司 | Vortex mixed exhaust aftertreatment case and system |
-
2012
- 2012-08-30 CN CN201220437443.3U patent/CN202745971U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109069997A (en) * | 2015-09-30 | 2018-12-21 | 罗伯特·博世有限公司 | Vortex mixed exhaust aftertreatment case and system |
| CN109069997B (en) * | 2015-09-30 | 2021-04-23 | 罗伯特·博世有限公司 | Rotational flow mixed type tail gas post-treatment box and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 214000 Jiangsu city in Wuxi Province Economic Development Zone Huishan District Wuxi Tangqiao temple bridge supporting money Kailong Automobile Equipment Manufacturing Co Ltd Patentee after: KAILONG HIGH TECHNOLOGY Co.,Ltd. Address before: 214000 Jiangsu city in Wuxi Province Economic Development Zone Huishan District Wuxi Tangqiao temple bridge supporting money Kailong Automobile Equipment Manufacturing Co Ltd Patentee before: WUXI KAILONG BUS EQUIPMENT MANUFACTURING Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |