光学玻璃电熔窑流液洞的数值模拟分析

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (1): 271-279.

所属专题：玻璃

光学玻璃电熔窑流液洞的数值模拟分析

郭富强^1,2, 何光^1,2, 潘再勇^1,2, 陈筱丽^1,2, 王乃帅^1,2

1.成都光明光电股份有限公司,成都 610100;
2.成都光明光电有限责任公司,成都 610100

收稿日期:2020-05-18 修回日期:2020-06-03 出版日期:2021-01-15 发布日期:2021-02-07
通讯作者: 何光,工程师。E-mail:heg@cdgmgd.com
作者简介:郭富强(1983—),男,高工。主要从事玻璃窑炉结构、生产工艺方面的研究。E-mail:459945586@qq.com

Numerical Simulation of Throat in Optical Glass Electric Melting Furnace

GUO Fuqiang^1,2, HE Guang^1,2, PAN Zaiyong^1,2, CHEN Xiaoli^1,2, WANG Naishuai^1,2

1. CDGM Glass Co.,Ltd.,Chengdu 610100,China;
2. CDGM Glass Limited Liability Company,Chengdu 610100,China

Received:2020-05-18 Revised:2020-06-03 Online:2021-01-15 Published:2021-02-07

摘要/Abstract

摘要： 采用ANSYS 19.0软件对光学玻璃全电熔窑流液洞进行了数值模拟分析研究,运用流场分布、温场分布、局部循环分布对流液洞设计进行了评价,分析了玻璃液在流液洞中的最大回流位置以及流液洞和上升道区域存在的局部循环数量。研究结果表明:在流液洞及上升道区域形成了多个局部循环,流液洞内的回流循环导致玻璃液正方向(z方向)流动的横截面减小而流速增大,同时导致高温区集中在流液洞顶部盖板砖附近位置,该现象加速了盖板砖侵蚀。通过降低流液洞宽度或降低流液洞高度均有利于缩小流液洞的回流循环范围,改善局部区域玻璃液的温度均匀性。曲线拟合近似计算出固定高度为150 mm、宽度为108.14 mm时或固定宽度为250 mm、高度为77.57 mm时流液洞盖板砖覆盖范围内玻璃液无回流产生。

关键词: 电熔窑, 流液洞, 上升道, 玻璃回流, 数值模似

Abstract: The numerical simulation and analysis of throat in optical glass electric melting furnace was carried out by ANSYS 19.0 software.The flow distribution,temperature distribution and local backflow circulation were studied on different sizes of furnace throat design.The maximum backflow position of glass in the throat was analyzed,and then the number of local circulation loops in the throat and riser was described.The results indicate that multiple local circulation loops are found in the throat and riser,and the throat backflow circulation loops result in decreasing of glass forward flowing cross section and increasing glass velocity in z direction.Meanwhile,the backflow circulation loops also have a bad effect on the local temperature distribution of the throat,so that high temperature areas always close to the throat roof,which accelerate the erosion of roof.By reducing the width or height of throat,the recirculation ranges in the throat are reduced and the temperature uniformity of local glass have been improved.According to the curve fitting,there is no backflow circulation loops observed within the throat roof coverage area when the fixed height is 150 mm and the width is 108.14 mm or when the fixed width is 250 mm and the height is 77.57 mm.

Key words: electric melting furnace, throat, riser, glass backflow, numerical simulation

中图分类号:

TQ171

郭富强, 何光, 潘再勇, 陈筱丽, 王乃帅. 光学玻璃电熔窑流液洞的数值模拟分析[J]. 硅酸盐通报, 2021, 40(1): 271-279.

GUO Fuqiang, HE Guang, PAN Zaiyong, CHEN Xiaoli, WANG Naishuai. Numerical Simulation of Throat in Optical Glass Electric Melting Furnace[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(1): 271-279.

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光学玻璃电熔窑流液洞的数值模拟分析

Numerical Simulation of Throat in Optical Glass Electric Melting Furnace

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