旋风除尘器的运作总结
普通旋风除尘器的入口型式,可大致分为两类:进气方向大致与除尘器轴线垂直,与简体表面相切者称为切向进入式,进气方向与除尘器轴线平行者称为轴向进入式,切向进入式又分为直入式和蜗壳式,前者是入口管外壁与除尘器筒体相切,而后者是入口管内壁与除尘器简体相切、入口管外壁采用渐开线形式。直人式设计与制造方便,且性能稳定,蜗壳式既缩短了尘粒向筒壁的沉降距离,又可减少人口气流与内旋流间的相互干扰,能提高除尘性能,但增大除尘器体积,切向进人式除尘器的压力损失约为,轴向进入式是利用固定的导流叶片使气流旋转的,其叶片有各种形状.与切向式相比,在同一压力损失下,能处理约3倍的气体量,压力损失约为400- 500Pa,但除尘效率较低。
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