LT1350涂层线水冷辊结构仿真优化设计

李会荣; 刘跃; 李俊涛; 管小荣

doi:10.13433/j.cnki.1003-8728.20200092

LT1350涂层线水冷辊结构仿真优化设计

doi: 10.13433/j.cnki.1003-8728.20200092

李会荣^1,,
刘跃^{1, 2, ,},
李俊涛¹,
管小荣²

1.
陕西国防工业职业技术学院机械工程学院，西安　710300
2.
南京理工大学机械工程学院，南京　210094

基金项目: 国家自然科学基金项目（51575279）与陕西省教育厅专项科研计划项目（20JK0508）

详细信息

作者简介:
李会荣（1983−），副教授，硕士，研究方向为金属加工工艺研究，lhry2008@163.com

通讯作者:
刘跃，讲师，博士，lynefo@126.com

中图分类号: TG162.6; O368
计量
- 文章访问数: 157
- HTML全文浏览量: 114
- PDF下载量: 17
- 被引次数: 0
出版历程
- 收稿日期: 2019-06-17
- 刊出日期: 2021-02-02

Numerical Simulation and Optimal Design of Structure of LT1350 Coated Wire Water Cooling Roller

LI Huirong^1
,,
LIU Yue^{1, 2
, ,},
LI Juntao¹,
GUAN Xiaorong²

1.
School of Mechanical Engineering, Shaanxi Institute of Technology, Xi' an 710300, China
2.
School of Mechanical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China

摘要

摘要: 亲水铝箔在生产过程中由于冷却速度过快会产生“起皱”问题，其原因为目前LT1350涂层线水冷辊冷却速度与工艺要求不匹配。本文采用添加空气隔层减缓冷却速度来改善这一工艺难题，使用Fluent软件对不同水冷辊结构时的铝箔冷却速率进行了数值模拟，给出了流场温度分布及量化值比较，并分析了空气隔层厚度对冷却过程的影响规律。结果表明：由于设置纯水隔层，目前LT1350涂层线水冷辊冷却速率过快，在旋转45°时铝箔降温即接近于水层温度；添加空气隔层可有效改善使用纯水隔层水冷辊时铝箔温度速度下降过快的问题；随着空气隔层厚度的增加，空气隔温效果增加，温度变化梯度降低，针对LT1350涂层线水冷辊，空气隔层厚度设置为4 ~ 6 cm可满足铝箔冷却工艺要求。
- 水冷辊 /
- 结构优化 /
- 影响参数 /
- 流固耦合 /
- 计算流体力学
Abstract: Because the cooling processis too fast, the crease appears in producing hydrophilic aluminum foils due to the mismatch between cooling velocity and technical requirements when the LT1350 coated wire water cooling roller isused. To remove the crease, the air layer is employed and the Fluent software is used to numerically compare the cooling velocity of different structures of the watercoolingroller. This paper compares temperature contours and quantitative values and studies the effects of air thickness. The numerical data show that thecooling velocity of the LT1350 coated wire water cooling roller is too fast owing to the use of complete water layer and that the foil temperature falls down to the water layer when its rotating angle is 45. The air layereffectively raises the foil temperature with the increase of air thickness.The insulation effect increases while the temperature gradientdecreases. The simulation results show that the thickness of the air layer of theLT1350 coated wire water cooling roller should be 4 ~ 6 cm to satisfy the foil cooling requirements.
- water cooling roller /
- optimal design /
- cooling velocity /
- fluid-solid coupling /
- computational fluid dynamics

HTML全文

图 1 水冷辊实物图

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图 2 水冷辊截面图

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图 3 水冷辊计算模型

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图 4 局部计算网格

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图 5 完全水冷辊计算结果

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图 6 带空气隔层的水冷辊计算结果

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图 7 不同空气隔层厚度时的铝箔层温度分布

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图 8 出口处沿径向水冷辊温度分布

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表 1 不同空气层厚度时铝箔最终冷却温度及下降值

厚度/cm 0 2 4 6 7

最终值/℃ 25.04 193.17 196.74 197.85 198.18
下降值/℃ 174.96 6.83 3.26 2.15 1.82

下载: 导出CSV

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