化工学报2024，Vol.75Issue(z1)：223-234,12.DOI:10.11949/0438-1157.20240676
微气泡旋流气浮装置内流动分析与结构优化
Flow analysis and structure optimization of micro-bubble swirling air flotation device
摘要
Abstract
Based on the Euler-Euler multiphase flow model,the oil-water separation multiphase flow process in a micro-bubble swirling air flotation device was numerically calculated.In the actual production process,the oil droplet in the device will collide with the injected swirling gas and adhere to form an oil drop-bubble adhesive.Therefore,the three-phase flow process of oil-gas-water in the micro-bubble swirling gas flotation device was simplified into a two-phase flow process of oil-gas mixed phase and water phase.The mixed phase density of oil and gas was determined by comparing the actual separation efficiency with the calculated results.Then,through the analysis of the calculation results,the influence law of the width and inclination angle of the diversion tube on the swirl strength and separation efficiency of the micro-bubble swirl air flotation device was obtained.The numerical calculations results show that the separation efficiency and the oil content of the outlet of the device increase first and then decrease with the increase of the width of the diversion pipe,and the separation efficiency of the device reached the best when the diversion pipe width was around 53 mm.The separation efficiency of the device and the oil concentration at the top outlet first increase and then decrease with the increase of the diversion tube inclination angle.The separation efficiency of the device reaches the optimum when the diversion pipes inclination angle was around 9°.关键词
旋流气浮/分离效率/导流结构/数值模拟/微气泡Key words
swirling air flotation/separation efficiency/diversion structure/numerical simulation/micro-bubbles分类
数理科学引用本文复制引用
李匡奚,于佩潜,王江云,魏浩然,郑志刚,冯留海..微气泡旋流气浮装置内流动分析与结构优化[J].化工学报,2024,75(z1):223-234,12.基金项目
国家自然科学基金项目(21106181,52104053) （21106181,52104053）
