| 程千驹， 贺四清， 胡泓.锂电池烘箱匀流特性分析及结构优化[J].轻工机械,2019,37(2):89-93 |
| 锂电池烘箱匀流特性分析及结构优化 |
| Uniform Flow Characteristics Analysis and Structural Optimization on Lithium Battery Oven |
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| DOI：10.3969/j.issn.1005 2895.2019.02.017 |
| 中文关键词: 锂电池涂布机 烘箱 FLUENT软件 导流板 k ε湍流方程 |
| 英文关键词:lithium battery coating machine oven FLUENT software deflector plate k ε turbulence equation |
| 基金项目:深圳市技术创新计划技术攻关项目(JSGG20170411095522440)。 |
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| 中文摘要: |
| 烘箱热风射流速度的均匀性对锂电池极片材料的一致性具有重要影响，为了提高射流速度的均匀性：建立了烘箱静压风室
的三维模型；利用FLUENT流体仿真软件，基于k ε湍流方程完成了装有导流板的静压风室热风流场的数值仿真计算;通过提取分析射流风嘴的射流速度分布
情况，对静压风室导流板安装尺寸进行了优化，流场仿真分析结果表明：经过优化后的风嘴射流速度均匀性得到了改善，热风射流速度沿风嘴长度方向波动由
1.87%下降到了0.73%，各风嘴射流速度波动由5.06%下降到了2.69%。改进后的射流速度能够满足锂电池极片烘干的一致性要求。 |
| 英文摘要: |
| Uniformity of jet velocity in oven has an important influence on the consistency of the lithium battery pole piece. A three dimensional model of the
oven static pressure chamber was established to improve the uniformity of the jet velocity. FLUENT simulation software and k ε turbulence equation model were used for numerical
simulation calculation of the hot air flow field in static pressure chamber with deflector. By analyzing the jet velocity distribution of the nozzle, the installation size optimization of the
hydrostatic chamber deflector was carried out. The flow field simulation analysis shows that the uniformity of the jet velocity is improved after optimization. The hot air jet velocity fluctuates
along the jet length from 1.87% to 0.73%, the velocity fluctuation of each nozzle decreased from 5.06% to 2.69%. The optimized jet velocity can meet the consistency requirement of lithium
battery pole drying. |
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