Automobile catalyst hydrothermal aging test equipment and method and inspection method

Abstract

The invention discloses automobile catalyst hydrothermal aging test equipment and method and an inspection method. The test equipment comprises an aging furnace, a gas supply device, a liquid supply device and a liquid evaporation device, wherein the gas supply device is communicated with the aging furnace, the liquid evaporation device comprises an evaporator, the liquid supply device is communicated with the inlet of the evaporator, the outlet of the evaporator is communicated with the aging furnace, the gas supply device comprises a gas pressure reducing valve, a gas electromagnetic valve,a gas flow meter and a gas regulating valve, the liquid supply device comprises a liquid storage tank, a liquid electromagnetic valve, a liquid flow meter and a liquid regulating valve, the liquid evaporation device further comprises a first three-way valve, the first port of the first three-way valve is communicated with the evaporator, the second port of the first three-way valve is communicatedwith the third regulating valve, and the third port is a detection port. According to the automobile catalyst hydrothermal aging test equipment provided by the invention, the problem that the processof an automobile catalyst hydrothermal aging test is tedious is solved, and the test repeatability, the test process consistency and the test reliability are ensured.

Description

technical field [0001] The invention relates to the field of hydrothermal aging test equipment for automobile exhaust treatment catalysts, in particular to a hydrothermal aging test equipment, testing method and inspection method for automobile catalysts. Background technique [0002] Auto catalysts generally consist of a cordierite honeycomb ceramic carrier and a catalytic coating, in which the catalytic coating mainly includes active components, noble metals and other catalytic components, carrier materials, etc. Among them, γ-Al2O3 has a strong adsorption capacity and a large specific surface area, so it is often used as a coating material. However, the coating material is unstable at high temperature, for example, γ-Al2O3 is easy to phase change into α-Al2O3 at 1000°C, thereby reducing the catalytic activity. In order to prevent the coating material from deteriorating at high temperature and reduce the amount of precious metals used, it is usually necessary to add rare ...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problems existing in the prior art, the present invention provides a highly repeatable and highly controllable auto catalyst hydrothermal aging testing equipment and testing method to solve the tedious problem of the auto catalyst hydrothermal aging testing process. Described technical scheme is as follows:

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