椭圆水管铸铁冷却壁冷却能力和残余应力研究  

Study on Cooling Capacity and Residual Stress of Elliptical Water Pipe Cast Iron Cooling Stave

作　　者：李加林 刘迎春 沈猛 LI Jia-lin;LIU Ying-chun;SHEN Meng(The Fourth Research and Design Engineering Corporation of CNNC,Shijiazhuang 050021,Hebei,China;Hebei Tianyu High-Tech Metallurgical Casting Co.,Ltd.,Cangzhou 062350,Hebei,China)

机构地区：[1]中核第四研究设计工程有限公司,河北石家庄050021 [2]河北天宇高科冶金铸造有限公司,河北沧州062350

出　　处：《铸造》2022年第3期310-314,共5页Foundry

摘　　要：铸体冷却壁是目前最重要的高炉冷却设备,其冷却能力直接关系到高炉的长寿、安全运行。为了提高铸铁冷却壁的性能,从冷却比表面积的角度对椭圆水管的冷却能力进行了分析,并进行了试验验证,还对压制后的椭圆水管进行了残余应力检测。结果表明,在水管截面积不变的条件下,椭圆水管的冷却比表面积比圆形水管的大,并随着椭圆管的椭圆度的增加而增加;椭圆水管冷却壁的冷却能力明显高于圆形水管冷却壁;压制后的椭圆水管的残余应力不会对冷却壁的使用造成不利影响。Cast cooling stave is the most important blast furnace cooling equipment at present,and its cooling capacity is directly related to the long-life and safe operation of the blast furnace.In order to improve the performance of the cast iron cooling stave,the cooling capacity of elliptical water pipe was analyzed from the perspective of cooling specific surface area and experimentally verified,moreover,the residual stress of the pressed elliptical water pipe was detected.The results showed that the cooling specific surface area of the elliptical water pipe was larger than that of the circular water pipe under the condition of constant cross-sectional area of the water pipe,and it increased with the increase of ellipticity of the elliptical pipe.The cooling capacity of the elliptical water pipe cooling stave was significantly higher than that of the circular water pipe cooling stave.The residual stress of the pressed elliptical water pipe will not adversely affect the use of the cooling stave.

关 键 词：铸铁冷却壁 椭圆水管 冷却能力 残余应力 

分 类 号：TG251[金属学及工艺—铸造]