风机吸风口相对距离对管道流场与阻力的影响分析  

Influence of Relative Distance Between Air Inlet Ducts on the Resistance of Ducts

作　　者：刘秋兵 桂文杰[1] 贾燕 仇晓龙 胡国明[1] 

机构地区：[1]武汉大学,湖北武汉430071 [2]中南电力设计院有限公司,湖北武汉430072

出　　处：《流体机械》2016年第10期32-36,69,共6页Fluid Machinery

摘　　要：风机在工程中有广泛的应用,风机吸风口的位置布置对其管道阻力有重要影响。现以某1000MW火电机组管道中相对布置的两台风机为对象,采用计算流体动力学的数值模拟方法对吸风口相对布置造成的气流干扰情况和其管道系统阻力进行数值计算和分析。通过分析数值模拟计算结果,得到相对距离大小与管道阻力大小的关系,给出了吸风口相对距离的合理区间。The application of air fan is used widely in engineering, the layout of the inlet ducts of air fan affects its system resist-ance a lot. Based on the two relative arranged air fans of 1000MW power plant construction projects, the numerical simulation method of the computational fluid dynamics is used to calculate and analyze the air flow disturbance and the resistance of the ducts system caused by the relative arrangement. Comparing and analyzing simulation results of several groups can show the rela-tion between system resistance and relative arranged distance of inlet ducts,and then give the reasonable range of the relative dis-tance between the air inlet ducts.

关 键 词：吸风口 相对布置 阻力 数值模拟 

分 类 号：TH44[机械工程—机械制造及自动化] TK83[动力工程及工程热物理—流体机械及工程]