集束氧枪不同环缝间距离对集束射流射流特性的影响  

Effect of Different Ring Slot Spacing on Flow Characteristics of Coherent Jet

作　　者：程挺[1,2] 朱荣[1,2] 魏光升 唐天平[1,2] CHENG Ting;ZHU Rong;WEI Guangsheng;TANG Tianping(School of metallurgical and ecological engineering, University of Science and Technology Beijing, Beijing 100083, China;Beijing Key Laboratory of Special Melting and Preparation of High-End Metal Materials, Beijing 100083, China)

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]高端金属材料特种熔炼与制备北京市重点实验室,北京100083

出　　处：《工业加热》2017年第1期31-34,共4页Industrial Heating

基　　金："十二五"国家科技支撑计划资助项目(2015BAF03B00);国家自然科学基金重点项目资助(51474024)

摘　　要：集束氧枪的发明和应用,改变了电弧炉传统的用氧工艺。在主氧周围增加伴随流,提高了氧气射流的聚合效果。本研究利用fluent软件模拟高温条件下不同环缝间距离对集束射流特性的影响,分析了主氧射流周围的漩涡对集束氧枪聚合效果的影响。研究结果表明,燃气与主氧间的距离对集束射流速度核心区长度具有显著影响,燃气与环氧间的距离对集束射流则无显著影响。本研究为炼钢用集束氧枪提供了一定的理论参考。Invention and application of coherent oxygen lance changes traditional oxygen technology of the EAF.The polymerization of the oxygen jet is enhanced by shrouding flow.This study used fluent software to simulate the effect of different ring slot spacing on flow characteristics of coherent jet under high temperature conditions.The results show that the distance between fuel gas and main oxygen has a significant effect on potential core length of coherent jet,and the distance between fuel gas and shrouding oxygen has no significant effect on coherent jet.This study provides a theoretical reference for designing of coherent lance.

关 键 词：集束射流 数值模拟 涡量 湍动能 

分 类 号：TM743[电气工程—电力系统及自动化]