管式微孔介质气泡发生器中气泡粒径分布的实验研究

发布时间：2018-01-01 10:01

本文关键词：管式微孔介质气泡发生器中气泡粒径分布的实验研究　出处：《应用基础与工程科学学报》2016年03期 　论文类型：期刊论文

【摘要】：为给高效气浮净化处理或气液传质过程的工程化设计研发提供硬件设备和基础性数据支撑,设计研发了基于微孔介质发泡机理处理量为2m3/h的微细气泡发生器,并首次在国内采用美国Microtrac公司S3500型激光粒度仪成功实现了微细气泡粒径的在线带压测量,系统讨论了液流流量、注气压差和注气比3个操作参数对管式微孔介质气泡发生器中气泡粒径分布特性的影响.实验结果表明:随着液流流量的增加,微细气泡平均粒径逐渐降低,二者之间呈现一种近似直线关系;随着注气压差的增加,微细气泡平均粒径先急剧减小后基本保持不变;随着注气比的增加,微细气泡相互聚并现象加剧导致粒径呈现指数形式增长.
[Abstract]:Provide hardware and basic data support for efficient air purification or gas-liquid mass transfer process engineering design research, design and development based on the porous foaming mechanism of the processing capacity of micro bubble generator 2m3/h, and for the first time using Microtrac S3500 laser particle size analyzer is the successful implementation of the online micro bubble size with pressure measurement in China, the system discusses the fluid flow, injection pressure difference and gas injection effect on tubular microporous media bubble generator in the bubble size distribution characteristics of more than 3 operating parameters. The experimental results show that with the increase of liquid flow, micro bubble mean diameter gradually decreased, showing a linear relationship between the two as the injection pressure difference between; the increase of the average particle size of micro bubble decreases rapidly first and then kept constant; with gas injection ratio increases, micro bubble coalescence phenomenon exacerbated by each other The particle size increases exponentially.

【作者单位】：北京石油化工学院机械工程学院;中海油研究总院技术研发中心;
【基金】：国家自然科学基金项目(51079006) 北京市属高等学校“长城学者”培养计划资助项目(CIT&TCD20150317)
【分类号】：X703.3;TU991.2
【正文快照】：

【相似文献】