The Production of Sprays and Mists of Uniform Drop Size by Means of Spinning Disc Type Sprayers
The Production of Sprays and Mists of Uniform Drop Size by Means of Spinning Disc Type Sprayers
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DOI：
10.1088/0370-1301/62/6/301
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发表时间：
1949-06
期刊：
影响因子：
--
通讯作者：
W. H. Walton;W. Prewett
中科院分区：
文献类型：
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作者：
W. H. Walton;W. Prewett
当液体在适当的条件下被喂到旋转圆盘的中心并从边缘离心时，可以形成几乎均匀的液滴大小的喷雾。这种喷雾方法已经在广泛的变量范围内进行了研究，并在3毫米至15 μ直径的液滴大小范围内产生了均匀的云。喷雾液滴的大小近似由方程d=3.8 （T/ ρ）½/ω给出，其中d=液滴直径，d=圆盘直径，ω=圆盘角速度，T=液体表面张力，ρ=液体密度。这样形成的喷雾也包含了一部分细小的卫星液滴，但它们离圆盘的投影距离较小，当它们不受欢迎时，就可以从云中移除。通过简单的电动马达驱动的圆盘容易产生相对粗糙的喷雾。更细的喷雾尺寸要求转子速度高达每秒数千转，高速空气驱动的“顶部”已用于此目的。介绍了适当的装置设计。
Spray of almost uniform drop size is formed when liquid is fed under suitable conditions on to the centre of a rotating disc and centrifuged off the edge. This method of spraying has been studied over a wide range of variables and homogeneous clouds have been produced in the drop-size range from 3 mm. to 15 μ diameter. The size of the spray drops is given approximately by the equation d=3.8 (T/Dρ)½/ω where d=drop diameter, D=disc diameter, ω=angular velocity of disc, T=surface tension of liquid, ρ=density of liquid. The spray thus formed also contains a proportion of fine satellite drops, but their smaller distance of projection from the disc enables them to be removed from the cloud when their presence is undesirable. Relatively coarse sprays are easily produced by means of a simple electric motor-driven disc. The finer spray sizes require rotor speeds up to several thousands of revolutions per second and high speed air driven "tops" have been used for this purpose. Suitable designs of apparatus are described.