小形サイクロン分離器の性能に関する研究(第1報) : 小型マルチクロン型単一サイクロンの実験

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This paper presents the experimental results on a small multiclone-type unit cyclone with a dia. of 30 mm, which is connected to the suction side of high speed motor fan, in order to investigate the characteristics of small cyclone separator using to measure the dust content of flow-gas. From the test results, we assumed that, the entering stream in the annular space above the bottom of the exit pipe flows down forming a forced voltex flow, and below the bottom of the exit pipe, its flow changes to a double eddy type flow consisting of an outer downward free voltex and an inner upward combined voltex such as Rankine's flow. The tangential velocity distribution of gas flow above and below the bottom of the exit pipe may be given by the following expression. v_i=c/r^n The value of n determined in the present experiment is 0.5〜-1. The test cyclone has shown that the separating eff. exceeds 99% for nealy all kinds of industrial dust particles with a dia. of between 0.7〜1.0 micron, and slightly more increases than with no an enlarged dust hopper. We compared the partial separating capacity at various points in cyclone with the total separating eff. by injecting known quantities of dust at these points and determined the equal partial eff. distribution curve.
一般社団法人日本機械学会の論文
1952-08-20