喷嘴布局对圆坯冷却的研究  

Research on the Nozzle Layout for Cooling Round Billets

作　　者：连天龙 王文学[1] 曾晶[1] 杨拉道[1] 王伦 庞伟林 

机构地区：[1]中国重型机械研究院股份公司,陕西 西安 [2]广西柳钢中金不锈钢有限公司,广西 玉林

出　　处：《冶金工程》2024年第4期185-196,共12页Metallurgical Engineering

摘　　要：针对圆坯连铸二次冷却过程,本文建立了喷嘴球面水量分布数学模型,通过该模型可计算不同位置不同面积内的喷淋水量。本文同时建立了铸坯柱面网格水量分布数学模型,通过该模型可计算出铸坯柱面水流密度数据。通过J. Wendelstorf研究出的公式计算出铸坯柱面每一个节点的喷淋换热系数,为精细化圆坯三维温度场数学模型提供边界条件基础。Regarding the secondary cooling process of round billet continuous casting, this paper establishes a mathematical model for water distribution on the spherical surface of the nozzle. This model enables the calculation of spray water volume at various positions and areas. Additionally, a mathematical model for water distribution in the cylindrical grid of the casting blank is established, allowing for the calculation of water flow density data on the cylindrical surface of the casting blank. Using the formula developed by J. Wendelstorf, the spray heat transfer coefficient at each node on the cylindrical surface of the cast billet is calculated, providing a fundamental boundary condition for refining the three-dimensional temperature field mathematical model of the round billet.

关 键 词：圆坯 二次冷却 喷嘴 水流密度 温度场 换热系数 

分 类 号：TG2[金属学及工艺—铸造]