Anti-blocking structure of three-way catalytic converter

Abstract

The invention belongs to the technical field of automobile exhaust emission, and particularly relates to an anti-blocking structure of a three-way catalytic converter, which comprises a shell and a ceramic carrier;. the shell comprises a metal shell; a heat insulation interlayer is arranged on the inner side wall of the metal shell; an anti-corrosion coating is arranged on the inner side wall of the heat insulation interlayer; air inlet is arranged at the left side of the shell; a front pressure sensor and a front temperature sensor are arranged at the top and the bottom of the air inlet respectively; an exhaust port is arranged at the right side of the shell; a rear pressure sensor and a rear temperature sensor are arranged at the top and the bottom of the exhaust port respectively; an air flow rate sensor is arranged on the front surface of the exhaust port; a vibration motor is arranged on the front surface of the shell; and a transmission rod is arranged on the side wall of an inner cavity of the shell. The structure is reasonable, in the using process, the air inlet temperature and pressure and the exhaust temperature and pressure can be conveniently monitored, meanwhile, the air flow speed of the exhaust port can be detected, and blocking is prevented.

Description

technical field [0001] The invention relates to the technical field of automobile exhaust emission, in particular to an anti-clogging structure of a three-way catalytic converter. Background technique [0002] Catalytic converter (Catalytic Converter), also known as catalytic converter. The device is installed in the exhaust system of the car, and its function is to reduce most of the exhaust pollutants emitted by the engine. The three-way catalytic converter consists of a metal shell, a mesh base and a catalytic layer (containing precious metals such as platinum and rhodium), which can remove HC (hydrocarbons), CO (carbon monoxide) and NOx (nitrogen oxides) three 90% of the three main pollutants (the so-called ternary refers to the chemical reaction that occurs when these three compounds are removed). When the exhaust gas passes through the purifier, the platinum catalyst will promote the oxidation of HC and CO to generate water vapor and carbon dioxide; the rhodium catal...

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Problems solved by technology

[0003] The existing three-way catalytic converter has some shortcomings in the process of use, such as easy to block during use, which affects the service life. Therefore, we propose a new three-way catalytic converter anti-clogging structure to solve the above problems

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