轴向旋流式微气泡发生器的结构设计与数值模拟

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丁国栋^1,3，陈家庆^1,3*，王春升²，尚超²，刘美丽^1,3，蔡小垒^1,3，姬宜朋^1,3

1. 北京石油化工学院机械工程学院，北京 102617 2. 中海油研究总院技术研发中心，北京 100027 3. 深水油气管线关键技术与装备北京市重点实验室，北京 102617

收稿日期:2017-12-07修回日期:2018-02-24出版日期:2018-10-22发布日期:2018-10-12
通讯作者:陈家庆

基金资助:北京市属高等学校“长城****”培养计划资助项目;“十三五”国家科技重大专项子课题“高效原油脱水处理技术研究”

Structural design and numerical simulation of axial-swirling type micro-bubble generator

Guodong DING^1,3, Jiaqing CHEN^1,3*, Chunsheng WANG², Chao SHANG², Meili LIU^1,3, Xiaolei CAI^1,3, Yipeng JI^1,3

1. School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
2. CNOOC Research Center, Beijing 100027, China
3. Beijing Key Laboratory of Pipeline Critical Technology and Equipment for Deep Water Oil & Gas Development, Beijing 102617, China

Received:2017-12-07Revised:2018-02-24Online:2018-10-22Published:2018-10-12
Contact:CHEN Jia-qing

摘要/Abstract

摘要： 设计了一种旋流式微气泡发生器，由环形注气机构和新型气泡破碎机构两部分组成，前者采用中心圆环+微孔板结构，后者由静止起旋元件和文丘里管组成，采用ANSYS FLUENT软件对新型气泡破碎机构的流道进行数值模拟，并与常规文丘里流道对比. 结果表明，新型气泡破碎机构流道内的水流速度、径向速度梯度、湍动能和湍能耗散率均大于常规文丘里流道，常规文丘里流道出口处产生的微气泡直径为新型气泡破碎机构的2倍. 采用响应曲面法优化静止起旋元件结构，优化后的叶片出口角度为35?，中心圆柱体直径为12.3 mm，叶片长度为10 mm，优化后的气泡破碎机构产生的微气泡直径为优化前的75%.

引用本文

丁国栋陈家庆王春升尚超刘美丽蔡小垒姬宜朋. 轴向旋流式微气泡发生器的结构设计与数值模拟[J]. 过程工程学报, 2018, 18(5): 934-941.
Guodong DING Jiaqing CHEN Chunsheng WANG Chao SHANG Meili LIU Xiaolei CAI Yipeng JI. Structural design and numerical simulation of axial-swirling type micro-bubble generator[J]. Chin. J. Process Eng., 2018, 18(5): 934-941.

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