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Integrated aftertreatment equipment

A post-processing and integrated technology, applied in the direction of exhaust gas treatment, mechanical equipment, electronic control of exhaust gas treatment devices, etc., can solve the problems of pollutant treatment without diesel engines, so as to improve SCR conversion efficiency, reduce costs, reduce risk effect

Pending Publication Date: 2018-06-12
CHINA FIRST AUTOMOBILE
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] At present, there is no post-processing device that can treat the pollutants of diesel engines to meet the emission regulations of the National VI stage.

Method used

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Embodiment Construction

[0021] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0022] Fig. 1(a) and Fig. 1(b) are the overall assembly schematic diagrams of the integrated post-processing equipment provided by the embodiment of the present invention respectively; figure 2 An internal cross-sectional view of the integrated post-processing equipment provided by the embodiment of the present invention; image 3 Explosion schematic diagram of the integrated post-processing equipment provided by the embodiment of the present invention; Figure 4 The detailed exploded schematic diagram of the integrated post-processing equipment provided by the embodiment of the present invention.

[0023] like Figure 1(a) to Figure 3 As shown, the integrated post-processing equipment provided by the embodiment of the present invention includes a firs...

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Abstract

The invention provides integrated aftertreatment equipment comprising a first treatment device, a mixer and a second treatment device. The first treatment device and the second treatment device are arranged side by side and connected through the mixer. The first treatment device comprises a gas inlet device, a diesel oxidation catalysis aftertreatment device, a diesel particle filter and a first flow guiding cavity which are sequentially connected. The second treatment device comprises a second flow guiding cavity, a selective catalytic reduction aftertreatment device, an ammonia oxidation catalysis aftertreatment device and a noise reducing and exhausting device which are sequentially connected. One end of the mixer is connected with the first flow guiding cavity, and the other end of themixer is connected with the second flow guiding cavity. The DOC, the DPF, the SCR mixer integrated with a urea nozzle, an SCR, an ASC and a silencing structure are integrated, so that the purposes oflowering emission of particles and NOx (nitrogen oxides) and reducing engine noise are achieved at the same time.

Description

technical field [0001] The invention relates to an integrated post-processing device, in particular to an integrated post-processing device that can simultaneously reduce particulate matter (PM), nitrogen oxides (NOx) and exhaust noise in diesel engine exhaust pollutants, and is especially suitable for It is more difficult to arrange the exhaust system on the whole vehicle. Background technique [0002] Diesel engine pollutants include exhaust pollutants and exhaust noise. Exhaust pollutants mainly include PM and NOx. The limit value of exhaust pollutants in the national VI emission regulations is compared with the national IV and national V emission regulations, and the limit value of diesel engine nitrogen oxides is reduced by 80%. Higher requirements are placed on the mixing uniformity of the currently used urea injection. At the same time, the limit requirements for the quantity and quality of particulate matter have been increased. It is difficult to simultaneously ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/035F01N3/10F01N3/20F01N3/28F01N11/00F01N13/00
CPCF01N3/035F01N3/106F01N3/2066F01N3/28F01N3/2892F01N11/002F01N13/009F01N2560/026F01N2560/06F01N2560/08F01N2560/14F01N2570/14Y02T10/12Y02T10/40
Inventor 黄凯王科星邢喜春朱宏志戈非刘守顺朱光贞张楠陈敏阳
Owner CHINA FIRST AUTOMOBILE
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