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老寇说

老寇说

好记性不如烂笔头
老寇说
搅拌器转速与扬程关系-小结

文章分类:水处理  发布时间:2024-09-04

对于离心泵而言,离心泵的扬程与转速是一个二次方的关系,转速越高,扬程越高,其原理是因为离心泵内部是一个密闭结构

当然,当离心泵的扬程需求很高时 需要进行多级设置 


在我思考搅拌器的过程中,也认为搅拌器的搅拌范围应该和转速有关,这个搅拌范围的来源在于一个很深的池体中,需要搅拌器能够搅拌到池底

所以最开始我以为是通过增加转速的方式提高搅拌范围

但是随着很多案例的仿真,发现了一个现象:

搅拌器的搅拌范围基本上由搅拌器的几何尺寸决定,转速影响的是对应范围内的介质流速,如下图:

这是10转/分钟的流态分布情况


这是100转/分钟的流态分布情况

可以发现 二者搅拌范围基本一致,不同点在于流速不同

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后续会对这个小结进行验证,目前看这个结论如果为真 则很重要,决定了我们的工程设计思路


9/4/2024 10:22:13 AM

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