化工进展2016，Vol.35Issue(3)：733-740,8.DOI:10.16085/j.issn.1000-6613.2016.03.013
大处理量紧凑型气浮装置的数值模拟
Numerical simulation of flow field and structural and operational parameters in a large capacity compact flotation unit(CFU)
摘要
Abstract
There were few reports about the structure design of large capacity floating device at present. The pace for domestication of flotation units was slow. In this paper,the self-developed compact flotation unit(CFU) with 120m3/h capacity was chosen as a simulation model. 3D flow fields were analyzed using Eulerian model and RNGk-εturbulence model. The structural parameters such as inner cylinder height,radial clearance,inlet tube diameter were examined,as well as the influences of operational parameters including oil wastewater treatment capacity and inlet oil content,in order to investigate and optimize de-oiling performance of the unit. Results of structural parameters analysis showed that the inner cylinder height has less influence on separation efficiency. As radial clearance decreases,oil-water separation efficiency raises then declines. As the inlet tube diameter decreases, de-oil efficiency decreases first then increases. Results of operational parameters simulations indicated that CFU has a relatively large operational flexibility and good adaptability to a certain degree of fluctuations on water quality and quantity.关键词
紧凑型气浮装置/含油污水/分离效率/数值模拟/工程放大Key words
compact flotation unit/oily water/separation efficiency/numerical simulation/engineering scale-up分类
资源环境引用本文复制引用
孔祥功,陈家庆,姬宜朋,王春升,张明,尚超,蔡小垒,刘美丽..大处理量紧凑型气浮装置的数值模拟[J].化工进展,2016,35(3):733-740,8.基金项目
国家自然科学基金（51079006）及北京市属高等学校“长城学者”培养计划（CIT&TCD20150317）项目。 （）
