锅炉尾部烟道减阻优化典型设计与仿真分析  

Typical Design and Simulation Analysis of Drag Reduction Optimization of Boiler Tail Flue

作　　者：马鹏飞 张恒远 贾瑞龙 王立新[1] 张选[1] 闫金山[2] 尚庆[2] MA Pengfei;ZHANG Hengyuan;JIA Ruilong;WANG Lixin;ZHANG Xuan;YAN Jinshan;SHANG Qing(Zhungeer Energy Co.,Ltd.of Shenhua Group,Ordos 010399,Inner Mongolia,China;China Academy of Aerospace Aerodynamics,Beijing 100074,China)

机构地区：[1]神华准格尔能源有限责任公司,内蒙古鄂尔多斯010399 [2]中国航天空气动力技术研究院,北京100074

出　　处：《能源与节能》2020年第6期62-65,共4页Energy and Energy Conservation

摘　　要：烟道系统是火电厂的重要部件,是电厂重要的运行能耗之一。在前期电厂设计的过程中,由于未充分考虑尾部烟道系统阻力,尾部烟道布置一般采用横平竖直的矩形结构设计,因此,尾部烟道结构出现烟道急弯多,矩形烟道内部支撑多,烟道内烟气流动漩涡太多的情况,导致烟道系统阻力较大,使得生产能耗指标高。结合现场实际,以神华准能矸石发电公司330 MW机组锅炉和国电常州发电有限公司600 MW机组锅炉的尾部烟道为对象,提出了倾斜爬坡与圆形2种不同的典型烟道优化设计,并用CFD进行了数值模拟分析,实现了尾部烟道阻力的大幅度降低。The flue system is an important part of thermal power plant and one of the important energy consumption of power plant.In the process of power plant design in the early stage,because the resistance of the tail flue system is not fully considered,the layout of the tail flue generally adopts the rectangular structure of horizontal and vertical.Therefore,there are many sharp bends in the tail flue structure,many internal supports in the rectangular flue,and too many swirls in the flue gas flow,resulting in a large resistance of the flue system,making the production energy consumption index high.Combined with the field practice,taking the 330 MW unit boiler of Zhungeer Energy Gangue Power Generation Co.,Ltd.of Shenhua Group and the tail flue of 600 MW unit boiler of State Grid Changzhou Power Generation Co.,Ltd.as the objects,this paper put forward two kinds of typical flue optimization designs,the inclined climbing type and the circular,and carried out the numerical simulation analysis with CFD to realize the significant reduction of the tail flue resistance.

关 键 词：尾部烟道 倾斜爬坡 圆形 数值模拟 

分 类 号：TM621[电气工程—电力系统及自动化]