【摘要】 为了改善大扩张角电袋复合除尘器入口流场速度分布,提高除尘器效率,采用不同开孔率多孔板的组合方案,对电袋复合除尘器进行了模拟试验。结果表明:入口截面相对速度偏差由84%降至21%,除尘器内各测量截面速度分布均达到标准要求;可以采用非均匀开孔率的多孔板组合方案来调节电厂电袋复合除尘器内部流场速度分布,从而增加电袋复合除尘器使用寿命,降低电袋复合除尘器维修成本,提高电袋复合除尘器效率。更多还原

【Abstract】 To improve the dust removal efficiency and internal flow field distribution of wide-angle electrostatic-bag precipitators, simulation tests were conducted on the combination mode of perforated plates with different porosities. Results show that the relative velocity of inlet cross section was reduced from 84% to 21%, while the relative velocity deviation of measured cross-section met relevant standard requirements; the flow field distribution in an electrostatic-bag precipitator could be adjusted by adopting the combination of different non-uniformly perforated plates, thus to elongate the service life of the bag filter, reduce the maintenance cost and improve the dust removal efficiency of the composite precipitator.更多还原