Noise reduction type tail gas filter

Abstract

The invention relates to a noise reduction type tail gas filter. The noise reduction type tail gas filter comprises a first exhaust pipe (2) connected with an automobile engine, a gas distributing pipe (3) which is shaped like a Chinese character 'kou' and is connected with the first exhaust pipe (2), and a second exhaust pipe (4) connected with the gas distributing pipe (3). A filter body (1) is arranged in the gas distributing pipe (3). A filter screen (1.2) and a ceramic honeycomb carrier (1.3) are sequentially arranged in the filter body (1) in the airflow direction. Atomizing spray heads (9) are further arranged at the front end of the filter body (1). According to the noise reduction type tail gas filter, tail gas is divided into two paths, sodium carbonate water mist is firstly used for removing acidic components in the tail gas, then two-stage filtration is conducted, and the tail gas with main components of CO, HC and NOx is reacted into CO2, H2O, N2 and O2; and meanwhile, black smoke particles in the exhaust gas can be effectively filtered out through micropores in partition walls, the filtered tail gas enters silencing discs of the second exhaust pipe for noise reducing, and the normal life of people is ensured.

Description

technical field [0001] The invention relates to a noise-reducing exhaust gas filter, which is used for purifying the exhaust gas of automobiles. It belongs to the technical field of automobile equipment. Background technique [0002] At present, ordinary automobile noise-reducing exhaust gas filters use catalysts to interact with NO and NO in automobile exhaust. 2 react with CO to produce CO 2 and N 2 These two kinds of non-polluting gases, but the cars equipped with diesel engines, because the exhaust gas of diesel engines contains black smoke particles, the existing noise reduction type exhaust filter can not effectively filter the black smoke particles, which will cause environmental pollution; It also produces huge noise, which affects people's daily life; the further elimination of the acidic components of the existing tail gas is a new demand for people's tail gas treatment and urban environmental protection. Contents of the invention [0003] The object of the p...

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Problems solved by technology

[0002] At present, ordinary automobile noise-reducing exhaust gas filters use catalysts to interact with NO and NO in automobile exhaust. 2 react with CO to form CO 2 and N 2 These two kinds of non-polluting gases, but the automobiles equipped with diesel engines, because the exhaust gas of diesel engines contains black smoke particles, the existing noise reduction type exhaust filter can not effectively filter the black smoke particles, which will cause environmental pollution; It also produces huge noise, which affects people's daily life; the further elimination of the acidic components of the existing tail gas is a new demand for people's tail gas treatment and urban environmental protection

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