化工进展2024，Vol.43Issue(6)：2977-2985,9.DOI:10.16085/j.issn.1000-6613.2023-0875
射流强化非填料式溶气设备的工作性能
Working performance of jet strengthening non-packing dissolved air equipment
摘要
Abstract
Dissolved air equipment is an important part of dissolved air release microbubble generation system.Based on the self-designed and developed jet-enhanced non-packed dissolved air equipment,this paper carried out experimental research on its working performance under different operating parameters.The WTW dissolved oxygen measurement equipment was used to measure the on-line pressure of the whole process,and the dissolved air performance was directly characterized by the change rate of dissolved oxygen concentration in water.The experimental results showed that the new dissolved air equipment still had high dissolved air performance under low energy consumption.The dissolved air performance increased with the increase of gas liquid ratio.The dissolved gas efficiency decreased with the increase of dissolved gas pressure,and increased first and then decreased with the increase of inlet water flow rate.The oxygen transfer mass transfer coefficient increased with the increase of dissolved gas pressure and inlet water flow rate.The optimal inlet flow rate range was between 0.7m3/h and 0.9m3/h.Because the new dissolved air equipment can still produce high-quality fine bubbles when using ordinary ball valves to reduce pressure and release gas to form bubbles,it occupied a smaller area than traditional equipment and was not easy to block,so it had more advantages in practical engineering applications.关键词
溶气设备/射流强化/溶气性能/溶解氧浓度/气液两相流/多相反应Key words
dissolving air equipment/jet intensification/dissolved air performance/dissolved oxygen concentration/gas-liquid flow/multiphase reaction分类
化学化工引用本文复制引用
杨磻槟,丁国栋,陈家庆,冯子夏,郑佳媛..射流强化非填料式溶气设备的工作性能[J].化工进展,2024,43(6):2977-2985,9.基金项目
国家自然科学基金面上项目(52274059) （52274059）
北京市博士后科研活动经费资助项目(2023-ZZ-070). （2023-ZZ-070）
