双进双出粗粉分离器流场数值模拟与优化技术研究  

Numerical simulation and optimization technology of dual inlet and outlet coarse powder separator

作　　者：苗莉莉 MIAO Lili(Department of Mechanical Engineering,Xinzhou Vocational and Technical College,Xinzhou 034100,China)

机构地区：[1]忻州职业技术学院机械工程系,山西忻州034100

出　　处：《黑龙江电力》2018年第4期353-357,共5页Heilongjiang Electric Power

摘　　要：针对双进双出分离器分离效率低的问题,开展了数值分析、理论计算、机构优化和工程性分析等研究过程,从而建立了仿真动力学模型,获取了双进双出分离器内的流场分布、压降特性和颗粒运动形态,对分离器的结构进行了优化。研究结果表明,双进双出粗粉分离器经过结构优化改进后,分离器压降阻力大幅度降低,明显提高了制粉系统的出力、分离效率、分级效果、细度分离效果和均匀性指数。Aiming at the low separation efficiency of dual inlet and outlet separator,the research process of numerical analysis,theoretical calculation,mechanism optimization and engineering analysis is carried out. The simulation kinetic model is established to obtain the flow field distribution,pressure drop characteristics and particle motion patterns in the dual inlet and outlet separator,and the structure of the separator was optimized. The results show that the optimized structure of double in double out thick powder separator after the improvement,separator greatly reduce the pressure drop resistance,improve the output of pulverizing system and the fineness degree of the separation efficiency,the effects of grading,separation effect and the evenness index.

关 键 词：粗粉分离器 数值模拟 优化 

分 类 号：TK233.25[动力工程及工程热物理—动力机械及工程]