A vehicle exhaust purification device capable of performing secondary purification

Abstract

The invention discloses an automobile tail gas purifying device capable of secondary purification, which comprises a main body, a three-way catalytic converter is arranged inside the main body, an air outlet is arranged on the upper side of the three-way catalytic converter, and the lower side of the three-way catalytic converter is The side is provided with a steering chamber that communicates with the three-way catalytic converter through a primary communication pipe, and a steering assembly is provided in the steering chamber, and an air inlet is connected to the lower side of the steering chamber, and the left end wall of the air inlet is fixed A temperature sensor is installed, the right side of the steering chamber is connected with a filter chamber, and a filter assembly is arranged in the filter chamber, and the right side of the filter chamber is connected with a purification chamber through a filter plate. Situation and temperature control Steering component rotation selection to perform only one purification or secondary purification. During the secondary purification, the large particles of impurities are first filtered through the filter plate, and then purified by activated carbon. After the purification is completed, the exhaust gas is purified by the three-way catalytic converter to prevent combustion. Sufficient exhaust gas is fully purified.

Description

technical field [0001] The invention relates to the technical field of automobile exhaust purification, in particular to an automobile exhaust purification device capable of secondary purification. Background technique [0002] Purification of automobile exhaust is a technical measure to reduce the impact of pollution, including internal and external purification of the engine. The former is to burn part of the exhaust gas again to reduce harmful substances in the exhaust gas; the latter is to install an exhaust catalytic converter, and the exhaust gas such as carbon monoxide, hydrocarbons and nitrogen oxides discharged from the internal combustion engine is converted into carbon dioxide and nitrogen through the catalytic converter. and water. The most effective exhaust gas purifier at this stage is the three-way catalytic converter, which is installed in the most important external purification device in the automobile exhaust system. The carrier part is a piece of porous ...

AI Technical Summary

Problems solved by technology

HC and CO are toxic gases, excessive inhalation will cause death, and NOX will directly lead to the occurrence of photochemical smog

However, when the car is running at a low speed or stopped but the engine is not turned off, the gasoline is not completely burned, and the exhaust gas is more difficult to purify than when the car is running normally, and it is easy to be incompletely purified.

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