摘要
以国内某钢铁厂常用的全氢炉为例,使用计算机仿真技术对全氢炉炉台氢气进口角度改变后内罩内各处氢气流量的变化进行了仿真研究,研究结果表明氢气入口速度矢量的轴向夹角与切向夹角的变化会主要会引起顶部流通通道、第一、第二层对流板处氢气流量的变化,第三、第四层对流板处氢气流量随着氢气入口速度矢量变化范围不大,且存在"均匀轴向夹角"和"均匀切向夹角",当氢气入口速度矢量的轴向夹角和切向夹角分布在此范围时,顶部流通通道和第一、第二层对流板处氢气流通通道的氢气流量较为均匀,此时有助于内罩内各个钢卷与四周环境的换热。
The full-hydrogen annealing furnace used in a domestic steel mill was taken as an example in this research.Studied the volume distribution of the hydrogen in the inner bell through numerical simulation method when changed the axial angle and the tangential angle of the velocity of the hydrogen flowing into the inner bell and didn’t change the speed of the hydrogen.The result shows that the change of the axial angle and the tangential angle of the hydrogen will cause the change of the hydrogen flow of the first and the second convection board channel and the top flow channel,and the hydrogen flow of the third and the fourth convection board channel will have little change.There exists a＂uniform tangential angle＂ and a＂uniform axial angle＂,while the tangential and axial angle of the hydrogen speed distributes in this range,the hydrogen flow of the first and the second convection board channel and the top flow channel are relatively uniform.It is good for the heat transfer of the coils.
出处
《工业加热》
CAS
2013年第1期28-32,共5页
Industrial Heating
关键词
全氢炉
炉台
角度
数值模拟
full-hydrogen annealing furnace
furnace platform
the angle of the velocity of the hydrogen
numerical simulation
