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采用均相流模型考察了不同浸渍管参数对RH装置内流场的影响。数值结果表明,偏心移动浸渍管时,在真空室底部、真空室及钢包钢液表面的下降管处发现较大的漩涡,但对循环流量影响较小;减小浸渍管间距,真空室左侧壁面的回流增强,循环流量减小;减小浸渍管插入深度,循环流量增大。在RH设备设计中,在不发生钢渣卷混的前提下,尽量减小浸渍管插入深度或增大浸渍管间距可提高钢液循环流量。
The homogeneous flow model was used to investigate the influence of different immersion pipe parameters on the flow field in RH device. The numerical results show that when the immersion tube is shifted eccentrically, a large vortex is found at the bottom of the vacuum chamber, the vacuum tube and the descending tube at the surface of the ladle. However, the influence on the circulation flow is small. The distance between the immersion tube and the left The backflow of the sidewall surface is enhanced, the circulation flow rate is reduced, the immersion tube insertion depth is reduced, and the circulation flow rate is increased. In the RH equipment design, under the premise of no steel slag mixing, minimize the immersion pipe insertion depth or increase the immersion pipe spacing can improve the liquid steel circulating flow.