| 摩擦和传热联合作用下等截面喷枪内气体的流动特性——(Ⅰ)基本方程及计算程式 |
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| 引用本文： | 魏季和,向顺华,樊养颐,郁能文,马金昌,杨森龙.摩擦和传热联合作用下等截面喷枪内气体的流动特性——(Ⅰ)基本方程及计算程式[J].上海大学学报(自然科学版),1998(4). |
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| 作者姓名： | 魏季和 向顺华 樊养颐 郁能文 马金昌 杨森龙 |
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| 作者单位： | 上海市钢铁冶金新技术开发应用重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目(59474016) |
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| 摘 要： | 基于可压缩流体动力学和热力学及传热原理,导出了表征摩擦和热源联合作用下管式和套管式等截面喷枪内气体流动特性的基本方程和计算公式;对18t AOD炉用套管式喷枪内的气体流动,较合理地确定了喷枪内壁温度和气体滞止温度沿管长的分布,以及吹炼过程中喷枪的摩擦系数;给出了不同流态下喷枪内气体流动特性的计算程式.
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| 关 键 词： | 气体浸没式喷吹 AOD过程 等截面喷枪 气体流动特性 加热和摩擦效应 |
Gas Flow Properties in Constant-area Lanceunder Action of Heat Source - ( I ) Basic Equations and Calculation Procedure |
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| Wei Jihe,Xiang Shunhua,Fan YangyiYu Nengwen,Ma Jinchang,Yang Senlong.Gas Flow Properties in Constant-area Lanceunder Action of Heat Source - ( I ) Basic Equations and Calculation Procedure[J].Journal of Shanghai University(Natural Science),1998(4). |
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| Authors: | Wei Jihe Xiang Shunhua Fan YangyiYu Nengwen Ma Jinchang Yang Senlong |
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| Abstract: | Based upon the fundamentals of the dynamics and thermodynamics of compressible fluid flow as well as heat transfer, the basic equations and calculation formulas characterizing the flow properties of the gas in the tubular and annular type lances with constant cross-sectional area (tuyeres) under the action of heat source have been derived. For the gas flow in an annular type tuyere used for an AOD vessel of 18 t capacity, the distributions of both the inner wall temperatures of the tuyere and the gas stagnation temperatures along its length, as well as its friction coefficients during injection refining have been determined. The calculation procedure for the gas flow properties in an annular type tuyere under the different flow patterns have been given. |
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| Keywords: | submerged injection of gas AOD process constant-area lance flow properties of gas heating and friction effects |
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