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本文提出用“倒算法”代替“估算法”计算等园截面喷氧管的设想,是以埋入式吹氧炼钢对喷流动力学特性的要求为依据,借助于粘滞可压缩流在等园截面喷管中运动的基本方程。首先确定喷管的内径,支数和喷管出口截面上的气流参数;然后再倒算出喷管入口截面上的气流参数和供氧操作参数,使计算的喷管及其供氧参数尽可能和冶炼的需要相适应,实现快速而平稳的吹炼,取得较好的冶炼效果。
In this paper, the idea of using “inverted algorithm” instead of “estimation method” to calculate isopen section oxygen lance is based on the requirement of jet flow dynamics of embedded oxygen-treated steel, with the aid of viscous compressible flow, etc. The basic equation of the movement in the nozzle of a section of a garden First determine the inner diameter of the nozzle, the number of branches and nozzle outlet section of the airflow parameters; and then count down the nozzle inlet section of the airflow parameters and oxygen operating parameters, so that the calculated nozzle and its oxygen parameters as much as possible and Smelting needs to adapt to achieve rapid and smooth blowing, and achieve better smelting effect.