Tail gas purification treatment device having initiative regeneration function and diesel vehicle

Abstract

The invention relates to a tail gas purification treatment device having an initiative regeneration function. The tail gas purification treatment device having the initiative regeneration function comprises an ECU control unit and a purification shell. The inner portion of the purification shell is sequentially divided into a first tail gas diffusion cavity, a second tail gas purification cavity, a third carrier regeneration cavity, a fourth tail gas purification cavity and a fifth purification collecting containing cavity in the tail gas exhausting direction. A tail gas intake opening communicates with the first tail gas diffusion cavity. A tail gas exhaust opening communicates with the fifth purification collecting containing cavity. The second tail gas purification cavity is provided with a DOC carrier filter element purifying tail gas. The third carrier regeneration cavity is provided with a regeneration heater. The fourth tail gas purification cavity is provided with a DPF element purifying tail gas particulates. When the second tail gas purification cavity and the fourth tail gas purification cavity are blocked and the adsorption capacity of the second tail gas purification cavity and the fourth tail gas purification cavity are lowered, the ECU control unit controls the regeneration heater to conduct heating and raise temperature, the DOC carrier filter element and the DPF element are heated and regenerated to work, the tail gas particles are combusted into tiny dust at a high temperature, and then the tiny dust is discharged.

Description

technical field [0001] The invention relates to the field of tail gas treatment, in particular to an actively regenerable tail gas purification treatment device and a diesel vehicle. Background technique [0002] When a diesel vehicle is running on the road, a large amount of black smoke will be produced due to insufficient combustion during the load operation process. The main components of the black smoke are black smoke particles PM, hydrocarbons HC, carbon monoxide CO, nitrogen oxides NOx, sulfur Among them, the accumulation of a large amount of soot particulate matter (PM) not only pollutes the environment, but also can be inhaled by the human body (mainly PM10), and even enter the human lungs (mainly PM2.5), affecting the health of workers . [0003] The purification products for these polluting components can be used in series or freely combined to achieve the purpose of purifying various pollutants at the same time. The filters on the market are roughly divided into...

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Problems solved by technology

[0004] Although the above-mentioned filters have their own characteristics, they all lack regenerative self-cleaning function. If the filter is used for a long time, it will be prone to clogging due to the accumulation of soot particles, reducing the purification efficiency, and the user needs to replace it with a new one. filter, which increases the cost of use

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