CN103016122A - Cylindrical post processor assembly - Google Patents
Cylindrical post processor assembly Download PDFInfo
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- CN103016122A CN103016122A CN2012105840961A CN201210584096A CN103016122A CN 103016122 A CN103016122 A CN 103016122A CN 2012105840961 A CN2012105840961 A CN 2012105840961A CN 201210584096 A CN201210584096 A CN 201210584096A CN 103016122 A CN103016122 A CN 103016122A
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- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention relates to a cylindrical post processor assembly which is particularly suitable for being assembled on a vehicle to be beneficial for spatial arrangement. In the assembly, the traditional silencer and a post processor are integrated together, so that exhaust gas pollutants and exhaust noises of an engine can be simultaneously reduced. According to the invention, the cylindrical post processor assembly comprises a mixing unit assembly, a post processing unit assembly and a noise reducing unit assembly, wherein the mixing unit assembly (A), a post processing unit assembly (6) and a noise reducing unit assembly (B) are independent assemblies and fixedly packaged in a housing (17) in sequence through a front-and-back end cover (2); and a heat insulating plate (16) is sleeved outside the housing (17). The cylindrical post processor assembly provided by the invention can be suitable for four different post processing lines and has the advantages of excellent noise reducing performance, high exhaust gas pollutant converting efficiency, low back pressure, high reliability and so on; moreover, as the assembly is cylindrical and can be suspended under a frame, side space of the frame is saved, simple production process, high efficiency, low cost and very strong market competitiveness are obtained.
Description
Technical field
The present invention relates to a kind of cartridge type post-processor assembly, be particularly useful for being beneficial to a kind of cartridge type post-processor assembly that assembling is arranged in the space at car load.
Background technique
The limit value of exhaust contaminant is compared with the national Ⅲ emission rules in the Abgasgesetz of state's IV, state V, and the limit value of exhausted pollutant of diesel engine (mainly being particle and oxynitrides) reduces a lot.In the motor machine, be difficult to reduce simultaneously the requirement that above-mentioned two kinds of exhaust contaminants reach state's IV, state V Abgasgesetz, for satisfying the Abgasgesetz of state's IV, state V, can only in the motor machine, take corresponding measure to reduce the discharging of a kind of exhaust contaminant in particle and the oxynitrides, adopt again exhaust gas post-treatment device to reduce the discharging of another exhaust contaminant, make two kinds of exhaust contaminants of motor all satisfy the emission regulation demands of state's IV, state V.
The exhaust gas post-treatment device of state's IV, state V mainly contains four classes: selective catalysis reduction preprocessor (SCR), the penetrating type granule capturing preprocessor (POC) with catalyst coat, diesel oil oxidation catalysis preprocessor (DOC), diesel particulate filtration post-processor (DPF).
Satisfy the structural design of post-processor assembly of the Abgasgesetz of state's IV, state V, the carrier that needs to adapt to above four kinds of reprocessing routes is arranged, and consider arrangement space and noise reduction requirement, and to reduce simultaneously manufacturing process difficulty and assembly cost, improve the competitiveness of product in market.
Summary of the invention
The technical problem to be solved in the present invention is that traditional silencing apparatus and preprocessor are integrated, and a kind of can realize simultaneously reducing discharging and engine noise are provided, and reduces a kind of cartridge type post-processor assembly of manufacturing process difficulty and assembly cost.
Above-mentioned technical problem of the present invention is solved by the following technical programs, and accompanying drawings is as follows:
A kind of cartridge type post-processor assembly, formed by mixed cell assembly, post-processing unit assembly and noise reduction unit assembly, described mixed cell assembly A is comprised of suction tude 4, the mixed plate 5 that is fixed on the end cap 2 of suction tude 4 front portions and is fixed on suction tude 4 rear ends, is furnished with air-flow path on described suction tude 4 and the mixed plate 5; Described post-processing unit assembly 6 is for being packaged with the tubular structure of carrier; Described noise reduction unit assembly B is comprised of the absorbing duct 8 that is provided with air-flow path, dividing plate, the outlet pipe 13 that is contained in the hush tube 10 on the absorbing duct 8 and is contained in absorbing duct 8 rear ends, described mixed cell assembly A, post-processing unit assembly 6 and noise reduction unit assembly B are independent assembly, fixedly be encapsulated in successively the inside of shell 17 by front and rear cover 2, shell 17 outer cover are equipped with warming plate 16.
Suction tude 4 front ends among the described mixed cell assembly A are fixed with flange 1, on the suction tude 4 between flange 1 and the end cap 2 temperature transducer 3 are housed.
Dividing plate among the described noise reduction unit assembly B by the dividing plate a7 that is fixed on absorbing duct 8 front ends, be fixed on dividing plate b11 on the absorbing duct 8, the dividing plate c9 and the dividing plate d12 that are fixed in the absorbing duct 8 form, and are fixed with hush tube 10 on the dividing plate b11.
Described outlet pipe 13 outlet end are equipped with tailpipe 15, and nitrogen oxide sensor 14 is housed on the outlet pipe 13.
Between described thermal baffle 16 and shell 17, be filled with sound absorption, thermal insulating material, be provided with the sound absorption hole at shell 17.
Described processing unit assembly 6 selective catalysis reduction preprocessor SCR, with penetrating type granule capturing preprocessor POC, diesel oil oxidation catalysis preprocessor DOC or the diesel particulate filtration post-processor DPF of catalyst coat.
The present invention is made of the mixed cell of cartridge type preprocessor suction tude 4, mixed plate 5, shell 17, end cap 2, atomizing and hydrolysis generated ammonia after spraying urea liquid was mapped in the engine exhaust, with enter post-processor assembly after engine exhaust mixes, through mixed cell, stream with uniform distribution is processing unit later, under the effect of selective catalysis reducing catalyst, finishes corresponding chemical reaction, exhaust after the purification flows into noise reduction unit, by the noise-cancelling theory reduction exhaust sound of impedance complex.
The method of the pore size and distribution of reasonable Arrangement suction tude, mixed plate overdraught passage is adopted in the design of mixed cell, makes exhaust be evenly distributed to the carrier end face, has improved the utilization ratio of catalyst coat, thereby has improved transformation efficiency.Require under certain prerequisite at the transformation efficiency of after-treatment system to catalytic converter, the mixed cell of excellent in design can reduce carrier bulk, thereby reduces the cost of assembly.
Traditional impedance complex formula noise-cancelling theory is adopted in the design of noise reduction unit.Take full advantage of limited space, arranged the noise elimination structures such as expansion cavity, resonant cavity; Adopt the acupuncture glass fibre as sound-absorbing material, be coated on the shell outside of assembly, and designed the sound absorption hole at the shell of muffling unit part, take full advantage of sound-absorbing material, when effectively reducing the radiated noise of assembly, also reduced the tail pipe noise of high frequency.
Good effect of the present invention is that traditional silencing apparatus and preprocessor are integrated, provide a kind of can the realization simultaneously to reduce discharging and engine noise device, go for four kinds of different reprocessing routes, save the arrangement space of car load vehicle frame side, production technology is simple, and cost is low.
Description of drawings
Fig. 1 is cartridge type preprocessor outline drawing;
Fig. 2 is the structural representation of cartridge type preprocessor;
Fig. 3 is the exploded view of cartridge type preprocessor;
Fig. 4 is the sub-assembly structural representation of cartridge type preprocessor.
Among the figure: 1. flange, 2. end cap, 3. temperature transducer, 4. suction tude, 5. mixed plate, 6. post-processing unit assembly, 7. dividing plate a, 8. absorbing duct, 9. dividing plate c, 10. hush tube, 11. dividing plate b, 12. dividing plate d, 13. outlet pipes, 14. nitrogen oxide sensors, 15. tailpipes, 16. warming plates, 17. shells.
A. mixed cell assembly, B. noise reduction unit assembly
Embodiment
Also the present invention will be further described in detail by reference to the accompanying drawings below by concrete mode of execution.
The device of realizing reducing engine exhaust pollutant and exhaust sound of the present invention comprises mixed cell, post-processing unit and noise reduction unit.
The below describes structural design and the manufacture process of assembly in detail take selective catalysis reduction preprocessor as example.
A kind of cartridge type post-processor assembly, by flange 1, end cap 2, temperature transducer 3, suction tude 4, mixed plate 5, post-processing unit assembly 6, dividing plate a7, dividing plate c9, dividing plate b11, dividing plate d12, absorbing duct 8, hush tube 10, outlet pipe 13, nitrogen oxide sensor 14, tailpipe 15, warming plate 16, shell 17 form; Flange 1, end cap 2, temperature transducer 3, suction tude 4, mixed plate 5 welding form the mixed cell assembly; Described post-processing unit assembly 6 is positioned at mixed cell assembly back; Dividing plate a7, dividing plate c9, dividing plate b11, dividing plate d12, absorbing duct 8, hush tube 10, outlet pipe 13 welding form the noise reduction unit assembly, are positioned at post-processing unit assembly 6 back; Mixed cell assembly, post-processing unit assembly, noise reduction unit assembly are weldingly fixed on the shell 17, are in the inside of shell 17.
The profile of cartridge type post-processor assembly is cartridge type.
Described post-processing unit assembly 6 can selective catalysis reduction preprocessor SCR, the penetrating type granule capturing preprocessor POC with catalyst coat, four kinds of different preprocessor routes of diesel oil oxidation catalysis preprocessor DOC, diesel particulate filtration post-processor DPF.
The cartridge type post-processor assembly is suspended under the vehicle frame.
Mixed cell assembly, muffling unit assembly are independent welding assembly.
At thermal baffle 16 interior adding sound absorptions, thermal insulating material, be coated on shell 17 outsides, be provided with the sound absorption hole at muffling unit shell 17 partly.
Air-flow enters exocoel by the aperture on the absorbing duct before the dividing plate after getting on the dividing plate c9, and the aperture by the absorbing duct behind the dividing plate flows back to inner chamber again, discharges again.
Consult shown in Figure 1, the device of realizing reducing engine exhaust pollutant and exhaust sound of the present invention, profile is core structure, the suction port Placement is flange, and be furnished with temperature transducer mouth seat, the tail pipe place is furnished with temperature transducer and nitrogen oxide sensor mouth seat, can be arranged under the vehicle frame, saves the arrangement space of car load vehicle frame side.
Consult shown in Figure 2ly, the device of realizing reducing engine exhaust pollutant and exhaust sound of the present invention comprises mixed cell, post-processing unit and noise reduction unit.Different functions is realized in each unit, and mixed cell and post-processing unit also can play the function of noise reduction simultaneously.
Consult shown in Fig. 3,4, the device of realizing reducing engine exhaust pollutant and exhaust sound of the present invention, flange 1, end cap 2, temperature transducer 3, suction tude 4, mixed plate 5 are formed the mixed cell assembly according to the structure welding of Fig. 4, carrier package is formed the post-processing unit assembly in stainless steel casing, 4 dividing plates, absorbing duct 8, hush tube 10, outlet pipe 13 welding are formed the noise reduction unit assembly.
Then the post-processing unit assembly is pressed into the specified position of shell 17, and welds, be fixed on the shell 17; Again the mixed cell assembly is pressed into the specified position of shell 17, and welds, be fixed on the shell 17; Again the noise reduction unit assembly is pressed into the specified position of shell 17, and welds, be fixed on the shell 17; With thermal baffle 16 interior adding sound absorptions, thermal insulating material, wrap on the preprocessor shell 17 at last, welding forms the cartridge type post-processor assembly.
Because the assembly profile is cylindrical, mixed cell, muffling unit are independent welding assembly, and it is comparatively easy to be pressed into shell, and is easy to guarantee welded gaps.Whole manufacture process is simple, sub-assembly is reasonable in design, and manufacturing efficiency is high, and the assembly cost is lower.
The device of realizing reducing discharging and engine noise of the present invention goes for four kinds of different reprocessing routes, and profile is cartridge type, can be suspended under the vehicle frame, save the frame sides space of planes, production technology is simple, efficient is high, cost is low, has the very strong market competitiveness.
Claims (6)
1. a cartridge type post-processor assembly is comprised of mixed cell assembly, post-processing unit assembly and noise reduction unit assembly, it is characterized in that:
Described mixed cell assembly (A) is comprised of suction tude (4), the mixed plate (5) that is fixed on the anterior end cap (2) of suction tude (4) and is fixed on suction tude (4) rear end, is furnished with air-flow path on described suction tude (4) and the mixed plate (5); Described post-processing unit assembly (6) is for being packaged with the tubular structure of carrier; Described noise reduction unit assembly (B) is comprised of the absorbing duct that is provided with air-flow path (8), dividing plate, the outlet pipe (13) that is contained in the hush tube (10) on the absorbing duct (8) and is contained in absorbing duct (8) rear end, described mixed cell assembly (A), post-processing unit assembly (6) and noise reduction unit assembly (B) are independent assembly, fixedly be encapsulated in successively the inside of shell (17) by front and rear cover (2), shell (17) outer cover is equipped with warming plate (16).
2. a kind of cartridge type post-processor assembly according to claim 1 is characterized in that:
Suction tude (4) front end in the described mixed cell assembly (A) is fixed with flange (1), on the suction tude (4) between flange (1) and the end cap (2) temperature transducer (3) is housed.
3. it is characterized in that according to claim 1 or 3 described a kind of cartridge type post-processor assemblies:
Dividing plate in the described noise reduction unit assembly (B) by the dividing plate a (7) that is fixed on absorbing duct (8) front end, be fixed on dividing plate b (11) on the absorbing duct (8), the dividing plate c (9) and the dividing plate d (12) that are fixed in the absorbing duct (8) form, and is fixed with hush tube (10) on the dividing plate b (11).
4. a kind of cartridge type post-processor assembly according to claim 1 is characterized in that:
Described outlet pipe (13) outlet end is equipped with tailpipe (15), and nitrogen oxide sensor (14) is housed on the outlet pipe (13).
5. a kind of cartridge type post-processor assembly according to claim 1 is characterized in that:
Between described thermal baffle (16) and shell (17), be filled with sound absorption, thermal insulating material, be provided with the sound absorption hole at shell (17).
6. a kind of cartridge type post-processor assembly according to claim 1 is characterized in that:
Described processing unit assembly (6) selective catalysis reduction preprocessor SCR, with penetrating type granule capturing preprocessor POC, diesel oil oxidation catalysis preprocessor DOC or the diesel particulate filtration post-processor DPF of catalyst coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105840961A CN103016122A (en) | 2012-12-28 | 2012-12-28 | Cylindrical post processor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105840961A CN103016122A (en) | 2012-12-28 | 2012-12-28 | Cylindrical post processor assembly |
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| Publication Number | Publication Date |
|---|---|
| CN103016122A true CN103016122A (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105840961A Pending CN103016122A (en) | 2012-12-28 | 2012-12-28 | Cylindrical post processor assembly |
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| CN (1) | CN103016122A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593591A (en) * | 2016-12-23 | 2017-04-26 | 中国第汽车股份有限公司 | Coaxially arranged integrated postprocessor device |
| CN108894859A (en) * | 2018-07-25 | 2018-11-27 | 汽解放汽车有限公司 | A kind of cylinder type integrates the post-processor assembly of detachable urea nozzle |
| WO2021097635A1 (en) * | 2019-11-19 | 2021-05-27 | 潍柴动力股份有限公司 | Bucket post processor and diesel engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4203807A1 (en) * | 1990-11-29 | 1993-08-12 | Man Nutzfahrzeuge Ag | Catalytic nitrogen oxide(s) redn. appts. for vehicles - comprises flow mixer urea evaporator hydrolysis catalyst, for exhaust gas treatment |
| CN2731113Y (en) * | 2004-08-10 | 2005-10-05 | 浙江万丰车业有限公司 | Ternary catalyzing purifying muffler for vehicle |
| CN101922342A (en) * | 2010-09-21 | 2010-12-22 | 中国第一汽车集团公司 | Straight-through particle filtration post-processor assembly |
| CN201714465U (en) * | 2010-07-14 | 2011-01-19 | 陈庆东 | Reduction catalyst |
| CN203098009U (en) * | 2012-12-28 | 2013-07-31 | 中国第一汽车股份有限公司 | Barrel-type postprocessor assembly |
-
2012
- 2012-12-28 CN CN2012105840961A patent/CN103016122A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4203807A1 (en) * | 1990-11-29 | 1993-08-12 | Man Nutzfahrzeuge Ag | Catalytic nitrogen oxide(s) redn. appts. for vehicles - comprises flow mixer urea evaporator hydrolysis catalyst, for exhaust gas treatment |
| CN2731113Y (en) * | 2004-08-10 | 2005-10-05 | 浙江万丰车业有限公司 | Ternary catalyzing purifying muffler for vehicle |
| CN201714465U (en) * | 2010-07-14 | 2011-01-19 | 陈庆东 | Reduction catalyst |
| CN101922342A (en) * | 2010-09-21 | 2010-12-22 | 中国第一汽车集团公司 | Straight-through particle filtration post-processor assembly |
| CN203098009U (en) * | 2012-12-28 | 2013-07-31 | 中国第一汽车股份有限公司 | Barrel-type postprocessor assembly |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593591A (en) * | 2016-12-23 | 2017-04-26 | 中国第汽车股份有限公司 | Coaxially arranged integrated postprocessor device |
| CN108894859A (en) * | 2018-07-25 | 2018-11-27 | 汽解放汽车有限公司 | A kind of cylinder type integrates the post-processor assembly of detachable urea nozzle |
| CN108894859B (en) * | 2018-07-25 | 2023-10-24 | 一汽解放汽车有限公司 | Post-processor assembly of cylindrical integrated detachable urea nozzle |
| WO2021097635A1 (en) * | 2019-11-19 | 2021-05-27 | 潍柴动力股份有限公司 | Bucket post processor and diesel engine |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |