新型防磨装置对省煤器磨损减轻的模拟分析  

Effect of a New Anti-abrasion Device on Wear Reduction of the Economizer

作　　者：裴彬[1] 杨东伟[1] 郁鸿凌[1] 金晶[1] PEI Bin YANG Dongwei YU Hongling JIN Jing(School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, Chin)

机构地区：[1]上海理工大学能源与动力工程学院,上海200093

出　　处：《动力工程学报》2017年第10期842-847,共6页Journal of Chinese Society of Power Engineering

摘　　要：利用Ansys Fluent软件研究了省煤器内烟气流场的变化情况,确定了局部烟气流速过高区域,烟气流速过高会对省煤器管束造成极大的磨损,为此提出了一种新型防磨装置,并通过数值软件模拟了该防磨装置对省煤器管束磨损的减缓效果.结果表明:在省煤器加装该防磨装置后,局部烟气流速过高处的烟气流速减至8m/s,省煤器管束的局部磨损问题得到了明显的改善.Ansys Fluent software was used to study the changes of flue gas flow field in an economizer,so as to determine the local area where the tube bundles had been worn by too high velocity of flue gas,following which,a new anti-abrasion device was proposed and its effectiveness was simulated by numerical method.Results show that after the anti-abrasion device is installed,the maximum flue gas velocity has been reduced to 8m/s,resulting in obvious reduction of local abrasion in the tube bundles.

关 键 词：省煤器 新型防磨装置 烟气流速 管束磨损 

分 类 号：TK224[动力工程及工程热物理—动力机械及工程]