Automobile exhaust particulate matter adsorption device

Abstract

The invention relates to the field of automobile exhaust treatment, and discloses an automobile exhaust particulate matter adsorption device, which comprises a particle collector, a plurality of first vent holes are arranged in the particle collector, and discharge wires which are not in contact with the inner walls of the first vent holes penetrate through the vent holes; the outer portions of the two end faces of the particle collector are each provided with a discharge wire fixing plate for fixing the ends of the discharge wires; gaps are reserved between the end face of the particle collector and the discharge wire fixing plates; the discharge wire fixing plates are of a frame structure, and the discharge wires a re fixedly connected to the discharge wire fixing plates; and the particle collector and the discharge wire fixing plates are respectively connected with positive and negative electrodes of a power supply through wires. According to the automobile exhaust particulate matter adsorption device provided by the invention, the exhaust back pressure of an engine is not increased while the high automobile exhaust particulate matter removal efficiency is guaranteed, and the influence on the performance of the engine is reduced.

Description

technical field [0001] The invention relates to the field of automobile exhaust gas treatment, in particular to an adsorption device for automobile exhaust particulate matter. Background technique [0002] With the continuous development of the economy, society and the automobile industry, the number of car ownership and use is increasing year by year, the environmental pollution caused by the use of cars is becoming more and more serious, and the regulations of relevant national departments and industries on car emissions are becoming increasingly stringent. [0003] Among them, fine particulate matter is one of the important pollutants in automobile exhaust, and it is also one of the important detection items required by current regulations. In order to reduce the content of fine particulate matter in automobile exhaust, major OEMs have adopted various methods, and the common ones on the market are diesel particulate filter (DPF) and gasoline engine particulate filter (GPF...

AI Technical Summary

Problems solved by technology

However, this system only has an electrode wire as the discharge electrode at the central axis, which has poor discharge uniformity and limited particle removal efficiency; and the distance between the discharge electrode and the dust collection electrode is too large, requiring ultra-high voltage to achieve corona discharge. The use of ultra-high pressure may bring certain safety risks. At the same time, wet regeneration requires water tanks and water pumps, which not only increases the cost, but also occupies the very compact layout space of the chassis; it will also affect the weight control of the vehicle. It is not conducive to the lightweight development of the whole vehicle; a large amount of water vapor will be generated during the wet regeneration process, which will intensify the cavitation of the dust collector and reduce the service life of the equipment; the compatibility and safety of the wet regeneration method with ultra-high pressure is also poor

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