This article discusses the use of a multi‐cyclone separator, which is a simplified form of a degassing hydrocyclone, in the separation of sweeping nitrogen bubbles and dissolved oxygen from water. The motion of the nitrogen bubbles and mass transfer of dissolved oxygen is discussed. It was observed that the Sauter mean diameter and gas volume in the swirling flow region as well as the total gas holdup increased as the volumetric ratio of gas to liquid flow increased. Almost all bubbles were found to exit through the gas outlet, indicating optimum performance of the bubble‐separation process. The multi‐cyclone separator was found to achieve good performance for the mass transfer of oxygen from water to nitrogen. This work is important in predicting the destination of bubbles and dissolved gas in swirling flow. © 2018 American Institute of Chemical Engineers AIChE J, 65: 215–223, 2019

中文翻译：

---

多旋风分离器中的气液传质和气泡尺寸分布

本文讨论了多旋风分离器的使用，该分离器是脱气水力旋流器的简化形式，用于从水中分离吹扫出的氮气气泡和溶解的氧气。讨论了氮气泡的运动和溶解氧的传质。观察到，随着气体与液体流的体积比增加，在旋流区域中的索特平均直径和气体体积以及总气体滞留率增加。发现几乎所有气泡都通过出气口排出，这表明气泡分离过程的最佳性能。人们发现，多旋风分离器在将氧气从水转移到氮气方面具有良好的性能。这项工作对于预测旋流中的气泡和溶解气体的目的地非常重要。AIChE J，65：215–223，2019