Fast ash accumulation device for gasoline engine particulate filter as well as application method thereof

Abstract

The invention relates to a fast ash accumulation device for a gasoline engine particulate filter as well as an application method thereof. The fast ash accumulation device comprises a burner, a burnercontrol system, a differential pressure sensor, a temperature sensor, a data acquisition system, a gasoline engine particulate filter and a weighing system. The burner is connected with the gasolineengine particulate filter by virtue of a pipeline, the differential pressure sensor is arranged on the gasoline engine particulate filter, the temperature sensor is arranged at an air inlet end of thegasoline engine particulate filter, a flowmeter is arranged at the air inlet end of the gasoline engine particulate filter, the burner is connected with the burner control system, and the burner control system can control burning working condition of the burner. During test, burning of the burner is controlled, an ash component is dispersed in exhaust airflow of the burner, the ash in the exhaustairflow is filtered by the gasoline engine particulate filter when flowing through the gasoline engine particulate filter, and then an ash accumulation process is completed. The fast ash accumulationdevice provided by the invention is simple in method, steps are easy to operate, ash accumulation rate is high, and process controllability is strong.

Description

technical field [0001] The invention relates to a quick ash accumulation device of a gasoline engine particulate filter and a method for using the same, belonging to the technical field of automobile tail gas treatment devices. Background technique [0002] Gasoline particulate filter (GPF) is a post-processing device widely used in the exhaust system of gasoline engines at the National VI stage. The vehicle exhaust particle number (PN) and particle mass (PM) emissions meet the requirements of the National VI stage. [0003] In actual use, due to the use of engine oil additives, the ash substances containing Ca, P, S, Zn and other components produced by the combustion will be captured by the GPF and accumulated in it, and the ash substances cannot be actively regenerated from the GPF. remove. Therefore, for vehicles equipped with GPF, it is necessary to consider the influence of ash accumulation on the GPF back pressure and particle capture rate, and then formulate a reaso...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a fast ash accumulation device and its use method in order to solve the shortcomings of the existing gasoline engine particle filter ash accumulation method, such as long time consumption and high equipment damage rate. The ash accumulation rate of the present invention is high and easy to operate The process is simple and highly controllable

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