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基于变截面定常一维等熵流的基本方程，分析了宝钢电炉用超音速氧枪的气动特性，得到了主氧及后燃烧喷孔的基本气动参数，给出氧流量与滞止压力及滞止温度间的关系；由实测值获得了测压点至喷孔进口处的压力损失，给出经一次减压后氧气压力的合适的设定值；讨论了枪角度等参数对冲击深度及冲击面积（ 主氧射流） 的影响；根据理论计算，给出后燃烧氧流量设定的建议值。
Based on the basic equations of variable-section steady one-dimensional isentropic flow, the aerodynamic characteristics of supersonic oxygen lance for Baosteel electric furnace were analyzed. The basic aerodynamic parameters of main oxygen and post combustion jet were obtained. The oxygen flow rate, stagnation pressure and stagnation pressure The relationship between temperature and temperature was obtained. The pressure loss from the pressure measurement point to the entrance of the injection hole was obtained from the measured value, and the suitable setting value of the oxygen pressure after the first decompression was given. The effects of gun angle and other parameters on the impact depth and impact Area (main oxygen jet); according to the theoretical calculation, give the recommended value for post-combustion oxygen flow setting.