基于RSM的呼吸性粉尘旋风分离器分离效能数值模拟研究

发布时间：2018-07-05 15:43

本文选题：呼吸性粉尘 + 旋风分离器　；参考：《煤炭学报》2015年07期

【摘要】：为研究满足BMRC曲线的呼吸性粉尘旋风分离器,利用流体力学软件Fluent 6.3对不同结构尺寸旋风分离器内部流场进行数值模拟,并基于响应曲面法、利用统计软件Design-Expert得到了呼吸性粉尘旋风分离器分离效能二次多项式预测模型。通过方差分析及回归方程系数显著性检验可知呼吸性粉尘旋风分离器筒体高度、排气管直径及插入深度对其分离效能有显著影响。根据预测模型加工旋风分离器样件并作实测验证,发现样件分离效能与BMRC曲线标准差为3.16%,小于5%。使用响应曲面法研究呼吸性粉尘旋风分离器分离效能可提高设计效率,保证计算模型可靠性,同时为满足EN481,PM10及PM2.5分离器的设计提供参考。
[Abstract]:In order to study the respiratory dust cyclone with BMRC curve, the fluid dynamics software fluent 6.3 was used to simulate the internal flow field of the cyclone separator with different sizes and based on the response surface method. Using the statistical software Design-Expert, the quadratic polynomial prediction model of the separation efficiency of the respirable dust cyclone separator is obtained. By means of variance analysis and regression equation coefficient significance test, it can be seen that the height of the cylinder, the diameter of exhaust pipe and the depth of insertion have significant effects on the separation efficiency of respiratory dust cyclone separator. According to the prediction model, the sample of cyclone separator is processed and tested. It is found that the standard deviation of sample separation efficiency and BMRC curve is 3.16, less than 5. Using response surface method to study the separation efficiency of respirable dust cyclone separator can improve the design efficiency and ensure the reliability of the calculation model. It also provides a reference for the design of EN481 / PM10 and PM2.5 separators.
【作者单位】：中煤科工集团重庆研究院有限公司;瓦斯灾害监控与应急技术国家重点实验室;
【基金】：国家自然科学基金资助项目(U1261205) 重庆市自然科学基金资助项目(cstc2012jj A40023)
【分类号】：TD714.4

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