利用会聚交流电场生产O/W型均匀尺寸液滴

Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting Pub Date : 1993-10-02 DOI:10.1109/IAS.1993.299062

M. Sato, S. Kato, M. Saito

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引用次数: 17

摘要

作者提出了一种在非混相液体介质(蒸馏水)中通过使用交流或脉冲电压产生的外加会聚电场产生均匀大小的绝缘液滴(如煤油或塑料单体)的方法。利用视频图像和静态照片对液相柱的崩解机理进行了精确观察。使用直径为100 μ m的喷嘴，与施加的交流频率同步产生直径在100 ~ 250 μ m范围内基本均匀的煤油液滴。当油相液体射流周围共流液体的流量增加时，同步频率变高，并且由于液体射流的延伸而产生的液滴尺寸减小。解体机制很可能是由于施加电压的每一个周期变化所引起的液体射流的强迫振荡。通过改变交流频率、喷嘴直径、液体流速和油相与共流水之间的速度比，可以广泛地控制液滴的大小。

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Production of O/W type uniformly sized droplets using a convergent AC electric field

The authors propose a method for producing insulating liquid droplets (such as kerosene or plastic monomer) of uniform size in immiscible liquid media (distilled water) by means of an applied convergent electric field generated using AC or pulsed voltage. The disintegration mechanism of the liquid column was observed precisely using video images and still photographs. Kerosene droplets with an essentially uniform diameter ranging from 100 to 250 mu m were produced synchronously with the applied AC frequency using a nozzle diameter of 100 mu m. When the flow rate of the coflowing liquid surrounding the oil-phase liquid jet was increased, the synchronous frequency became higher and the size of the resulting droplets was decreased due to the elongation of the liquid jet. The disintegration mechanism is most likely the forced oscillation of the liquid jet stimulated by each cycle change of the applied voltage. The droplet size can be widely controlled by varying the AC frequency, nozzle diameter, liquid flow rate, and velocity ratio between the oil-phase and coflowing water.<>

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Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting

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