烧结机漏风率测点布局方案研究

Plan Research of Sintering Machine Air Leakage Rate Testing Point Arrangement

在烧结机漏风率测试研究中,为获得准确高效的测试方案,利用多孔介质模型、SIMPLE算法和标准两方程湍流模型,运用CFD/FLUENT对烧结机台车-风箱-支管段进行数值仿真,根据实际生产状况改变料层温度值和出口压力值,得出相应的压力场、温度场和速度场。结果给烧结机漏风率测量的测点布局提供理论依据,从而得出合理的漏风率测点布局方案。结果表明:通过数值模拟的方法能得出烧结机漏风率测点布局方案,改进方案能对烧结机漏风率参数进行准确高效地测量。

In order to obtain accurate and efficient plan in the study of sintering machine air leakage testing, a sintering machine trolley-bellows-tube was numerically simulated by using CFD/FLUENT based on porous medium model, SIMPLE algorithm and standard 2 equations turbulence model. Then corresponding pressure fields, the tem- perature fields and velocity fields were obtained by changing bed temperature and outlet pressure according to actual production status. These results supply theory foundation for sintering machine air leakage rate testing point arrangement, thereby reasonable plan of which was obtained. The results show that the plan of air leakage rate testing point arrangement can be obtained by numerical simulation, which can test sintering machine air leakage rate accurately and efficiently.