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开口型挡板在复合除尘器的数值模拟及优化

Release time:2021-03-15 Hits:

Key Words:复合除尘器;;开口型挡板;;上升气速;;气流分布均匀性

Abstract:运用Fluent软件对复合除尘器进行模拟分析,发现由于内旋流的作用造成滤筒间隙上升气速过大导致除尘清灰效率降低的问题,通过运用加装开口型挡板的方式对其进行优化。模拟分析显示,挡板的长度对气流分布有较大影响,挡板过长会造成局部强旋流,过短会造成上升气速过大的问题;优化结果显示,开口型挡板能够有效降低气速,提高气流分布的均匀性,其中提出的三排开孔挡板模型和原模型相比,平均上升气速降低35%,气流分布均匀性提高39%。

Volume:v.46;No.353

Issue:07

Translation or Not:no

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