能源工程2024，Vol.44Issue(4)：45-50,6.DOI:10.16189/j.nygc.2024.04.008
燃煤机组冷却器入口烟道流场优化数值模拟研究
Numerical simulation on flow field optimization of cooler inlet flue duct in coal-fired units
蒋楠1
作者信息
- 1. 浙江浙能科技环保集团股份有限公司,浙江 杭州 311100
- 折叠
摘要
Abstract
In coal-fired units,three flue ducts in parallel are configured at the rear end of the air preheater outlet.Serious ash accumulation at the rear end of smoke cooler was found in maintenance.The unevenness of flow distribution in three flue ducts is inferred as the possible cause.In order to improve the uniformity of flow field,it is necessary to optimize the flue structure and layout of smoke cooler.In this paper,CFD numerical simulation was used to optimize the flow field of inlet flue duct in a coal-fired power plant,and the varying pattern of flue flow drag and flow distribution under three different optimization schemes are analyzed.The results show that changing the layout of cooler and the diameter of flue duct have no obvious influence on improving the uniformity of flow distribution.By changing the layout of cooler and setting up a baffle,the flow distribution of three flue ducts can be improved,and ash accumulation problem can be alleviated.关键词
冷却器/烟道优化/数值模拟/流场/导流板Key words
cooler/flue optimization/numerical simulation/flow field/baffle分类
资源环境引用本文复制引用
蒋楠..燃煤机组冷却器入口烟道流场优化数值模拟研究[J].能源工程,2024,44(4):45-50,6.
