高炉环缝洗涤器流场和阻力特性数值模拟

为预测高炉环缝洗涤器（Annular Gap Scrubber，AGS）内部流场和阻力特性，采用CFD仿真方法建立AGS的二维轴对称CAE仿真模型．实测数据检验表明该模型的仿真偏差在10％以内，可以满足工程应用需求．对高炉AGS的多工况仿真结果表明，喷水引起的压力损失增加约占总压差的40％～70％；水滴撞击环缝内锥壁面且撞击区域集中，易造成内锥磨损．CAE仿真得到的阻力特性已成功应用于国内首套自主研发的高炉AGS．

Numerical simulation on flow field and resistance characteristics of blast furnace annular gap scrubber

To predict the flow field and resistance characteristics inside Annular Gap Scrubbers(AGS) of blast furnaces,a 2D axisymmetric CAE simulation model is established by CFD simulation method.Compared with the experimental data,the simulation deviation of the model is within 10%,which is good enough for engineering application.The simulation with multi-conditions show that the pressure loss caused by water spray accounts for 40%~70% of total pressure loss approximately,and water droplets impact concentrates on a certain region of AGS inner cone surface,which can lead to wear of AGS inner cone.The resistance characteristics obtained by CAE simulation have been successfully applied to the first self-developed blast furnace AGS in China.