The Electrochemical Noise Study of TA10 Heat Exchanger Tubes in the Tri-effect Continuous Evaporation and Crystallization Device

摘要

According to the tube process conditions of a TA10 heat exchanger, which is working in a chemical plant, the paper analyzes the possible factors of corrosion, identify the main influencing factors of the corrosion failure of heat exchanger were temperature, pH value, and the concentration of Aluminum Chloride Hexahydrate. Using the orthogonal test and electrochemical noise measurement technique to study the influence of three factors on TA10 alloy. The results show that the TA10 alloy has no obvious corrosion in the range of experimental study. The result of the range analysis determines the temperature and pH value are the main factors influencing the noise resistance R_n, the value of the noise resistance R_n increases with the rise of the temperature. When the temperature is 90□, the pH value is 2, the noise resistance R_n of the TA10 alloy specimen is largest.