摘要
针对国内某330MW燃煤机组两台引风机,建立了一套基于数值计算和实验测试方法的烟气循环烟道设计体系。首先,根据引风机运行的安全性和经济性选取设计循环风量;然后,提出了9种烟气循环烟道设计方案,运用数值方法对9种方案进行比选,综合考虑确定采用设计方案5(φ=1.2m);最后,烟气循环烟道改造完成后,在300MW锅炉正常燃烧工况进行了现场热态性能实验。实验测试结果表明,设置烟气循环烟道后,循环烟道的循环风量、引风机运行安全性和经济性均能达到设计预期。
A flue gas circulation duct design system based on numerical calculation and experimental test is established for two induced draft fans of a 330MW coal-fired unit in China. Firstly, according to the safe and economic operation of the induced draft fan, the design of circulating air volume is selected. Then, 9 design schemes of flue gas circulation duct are put forward, 9 schemes are compared and selected by numerical method, and design scheme 5 (φ=1.2m) is selected with overall considerations. Lastly, when the flue gas circulation duct reformation is completed, the field thermal performance experiment is carried out in the 300MW condition with normal combustion of the boiler. The experimental results demonstrate that with the flue gas circulation duct,the circulating air volume of the circulation duct, the safety reliability and working efficiency of the induced draft fans can reach the design expectations.
作者
李乐乐
陈得胜
石清鑫
郑金
董康田
Le-le Li;De-sheng Chen;Qing-xin Shi;Jin Zheng;Kang-tian Dong(Yangcheng International Power Generation Co.,Ltd.;Xi’an Thermal Power Research Institute Co.,Ltd.)
出处
《风机技术》
2019年第3期83-88,共6页
Chinese Journal of Turbomachinery
基金
中国华能集团总部科技项目(HNKJ12-H03)
关键词
引风机
烟气循环烟道
数值计算
试验测试
设计体系
Induced Draft Fan
Flue Gas Circulation Duct
Numerical Calculation
Experimental Test
Design System
