小型玻璃电熔窑的数值模拟  

Numerical Simulation of Small-scale Glass Electric Melting Furnace

作　　者：何光 郭富强 陈筱丽 龚财云 粟勇 HE Guang;GUO Fuqiang;CHEN Xiaoli;GONG Caiyun;SU Yong(CDGM Glass Co., Ltd., Chengdu 610100, China)

机构地区：[1]成都光明光电股份有限公司,成都610100

出　　处：《硅酸盐通报》2020年第4期1302-1307,1313,共7页Bulletin of the Chinese Ceramic Society

摘　　要：采用ANSYS 19.0对小型硼硅酸盐玻璃电熔窑进行了数值模拟,在电熔窑玻璃液区域进行了电流密度分布、温度分布、速度分布的分析研究。电流密度全局最大值8406.45 A·m-2出现在电极表面区域附近,符合行业设计要求。温场分布研究表明,测试点的计算温度与实测温度相差不到10℃,与现场具有较高符合性。玻璃液在熔化池内受自然对流影响形成多个对流循环,并在主熔化区域的电极上方附近形成四个热点区域。通过结果比对可以看出模拟分析与生产现场具有较高的符合度,模拟分析结果可用于指导小型电熔窑设计、工艺调试。A small-scale borosilicate glass electric melting furnace was simulated and analyzed by ANSYS 19.0 software.The electric current density distribution,temperature distribution and velocity distribution were studied in the molten glass zone of the electric melting furnace.The maximum electric current density was 8406.45 A·m-2 close to the electrodes surface,which was compliance with industry standards.Temperature distribution results shows the difference between calculated temperature and measured temperature is less than 10℃at the thermocouple position,and it is in good agreement with the site.The multiple convection cycles are formed because of the molten glass natural convection in the melting furnace,and four hot spots are formed near the upper part of electrodes in the main melting zone.Comparisons shows that the simulation results are in good agreement with the production site.The simulation results can be used to guide the design and process debugging of small-scale electric melting furnace.

关 键 词：电熔窑 硼硅酸盐玻璃 自然对流 温度梯度 

分 类 号：TQ171[化学工程—玻璃工业]