Testing apparatus capable of simulating high-temperature corrosion

Abstract

The invention relates to a testing apparatus capable of simulating high-temperature corrosion. The testing apparatus comprises a high-temperature corrosion system, a gas supply system, an electronic control system and an exhaust gas treatment system, wherein the high-temperature corrosion system comprises a heating furnace and a weighing device; the surface of a sample can be selectively coated with a variety of corrosive salt layers; the gas supply system can selectively input various corrosive gases into the heating furnace; the electronic control system comprising a weight recording unit and a displaying unit; the weight recording unit can record the real-time weight of the sample and calculate the weight gain of sample; the display unit can display an obtained kinetic curve of high-temperature corrosion; and the exhaust gas treatment system can recover the corrosive gases from the heating furnace. The testing apparatus of the invention is highly intelligent and automatic, and can display real-time kinetic curves of corrosion during simulated corrosion testing, so the system is well guaranteed in convenient study of the high-temperature corrosion behaviors and corrosion mechanisms of metal materials in environments with coexisting high-temperature gases, high-temperature salts and various corrosive media.

Description

technical field [0001] The invention relates to the technical field of corrosion simulation, in particular to a test device for simulating high-temperature corrosion. Background technique [0002] With the progress of human civilization, the continuous growth of population, and the continuous improvement of human living standards, urbanization levels, and industrial levels, various types of waste such as domestic waste, urban waste, and industrial waste are also increasing day by day, and the disposal of these wastes also increasingly severe. Waste incineration treatment is an effective means to realize the harmlessness, reduction and recycling of solid waste. It has good social and economic benefits and has been paid more and more attention by people. However, HCl, Cl 2 , SO 2 , CO and other corrosive gases and NaCl, KCl, Na 2 SO 4 、K 2 SO 4 Metal deposits such as salt cause serious high-temperature corrosion to the superheater and water wall of the incineration equi...

AI Technical Summary

Problems solved by technology

[0004] However, the existing continuous weighing simulation device is limited to high-temperature gas corrosion research of materials, and there is no continuous measurement test device that can simulate the coexistence of high-temperature gas corrosion and high-temperature salt corrosion.

At the same time, the existing continuous weighing simulation test device has a low degree of intelligence and automation, and cannot display the results of the corrosion kinetic curve during the simulated corrosion test in real time, and cannot quickly and intuitively understand the high-temperature corrosion behavior of metal materials, and thus cannot systematically and conveniently Studying the high-temperature corrosion behavior and corrosion mechanism of metal materials in the environment where high-temperature gas, high-temperature salt and various corrosive media coexist cannot provide timely reference for equipment material selection and corrosion protection

Images