A vehicle exhaust purification system

Abstract

The invention provides an efficient automobile exhaust purification system. The system comprises an exhaust inlet tube, an exhaust outlet tube, a three-way catalytic converter and a DEP purification treatment unit. The DEP purification treatment unit comprises a DEP purification circuit board of a layered structure, DEP purification electrode plates comprise supporting frames, first wire groups are arranged in parallel or roughly in parallel in the first direction on the supporting frames, and second wire groups are arranged in parallel or roughly in parallel in the second direction on the supporting frames. Insulating layers are arranged outside the wires in the first wire groups and the wires in the second wire groups, the first direction and the second direction are not in parallel, the wires in the first wire groups and the wires in the second wire groups are interlaced, one part of the wires in the first wire groups and one part of the wires in the second wire groups are connected with a power source positive electrode, and the other part of the wires in the first wire groups and the other parts of the wires in the second wire groups are connected with a power source negative electrode. The three-way catalytic converter can carry out purification treatment on NOx, HC and CO, and the DEP purification treatment unit can filter out particulate matter in automobile exhaust and especially can effectively filter out particulate matter which can enter the lungs.

Description

technical field [0001] The invention relates to the technical field of automobile exhaust purification treatment, in particular to an automobile exhaust purification system. Background technique [0002] With the development of social economy, on the one hand, the consumption of fossil energy and the discharge of pollutants are constantly increasing. On the other hand, in order to live a more comfortable and healthy life, people have higher and higher requirements for environmental cleanliness. In order to deal with the environmental problems caused by high pollution, the country has put forward more and more strict requirements on the emission of automobile exhaust. In order to achieve a lower concentration of exhaust emissions, there are currently two ways of organic internal purification and external purification. The internal purification is to reduce the generation of harmful gases. Before the exhaust gas is discharged into the atmosphere, the catalytic conversion devic...

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Problems solved by technology

However, these methods are all for the purification of NOx, HC, and CO. At present, there is no collection device for PM (particulate matter) in automobile exhaust.

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