摘要
以某厂114 kA预焙阳极铝电解槽为研究对象,以ANSYS为计算平台,对阴极短路母线电热平衡时的电-热特性进行模拟计算。通过现场测试和数值模拟相结合的方法,导出母线表面换热系数修正公式,研究母线电流、换热系数以及环境温度对母线电热平衡时最高温度与电压降的影响。研究结果表明:随着母线电流的增大和换热系数的减小,母线温度和电压降均明显增大,而环境温度的影响较小。研究结果可为母线熔断过程分析提供理论依据。
Taking 114 kA aluminum reduction cells with baked anodes as research subject,the electric and thermal characteristic of cathode short circuit busbar was simulated by ANSYS computational platform under the thermo-electric balance condition.The coefficient of heat transfer of the cathode busbar was inferred by combining the measurement and the numerical simulation.The influence of the current,coefficient of heat transfer and environment temperature on the highest temperature and voltage drop of the cathode busbar was researched.The results show that the temperature and voltage drop obviously increase with the increase of electric intensity and the decrease of heat transfer coefficient.However,the influence of environment temperature is small.The results can be used in analyzing the melted and broken process for cathode busbar.
出处
《中南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2010年第4期1609-1615,共7页
Journal of Central South University:Science and Technology
基金
湖南省科技计划项目(2009GK2009)
关键词
铝电解槽
短路母线
电热平衡
数值模拟
aluminum reduction cells
short circuit busbar
thermo-electric balance
numerical simulation
