600 MW亚临界机组锅炉炉墙振动原因分析及治理  

Analysis and treatment of boiler wall vibration of 600 MW subcritical unit

作　　者：王荣 韩建衡 贾志军 王耀 WANG Rong;HAN Jianheng;JIA Zhijun;WANG Yao(Inner Mongolia Jinglong Power Generation Co.,Ltd.,Fengzhen,012100,China;Inner Mongolia Vocational College of Mechanical and Electrical Engineering,Hohhot 010070,China;Emergency Rescue Center of Xinjiang Oilfield Company,Karamay 834000,China)

机构地区：[1]内蒙古京隆发电有限责任公司,内蒙古丰镇012100 [2]内蒙古机电职业技术学院,呼和浩特010070 [3]新疆油田公司应急抢险救援中心,新疆克拉玛依834000

出　　处：《黑龙江电力》2024年第1期88-94,共7页Heilongjiang Electric Power

摘　　要：针对京隆发电2号机组投产以来锅炉左侧炉墙一直存在较大振动的状况,采用锅炉内部结构全尺寸1:1建模对炉内流场进行分析。通过热态测试、冷态检查、计算流体动力学(CFD)流场分析、模态分析等方法,得出炉墙振动的主要原因是锅炉内部存在不稳定烟气流。根据振动原因对锅炉内、外部结构进行了优化,炉墙振动烈度较治理前下降77%~88%,提高了锅炉运行的安全性。Since the Jinglong No.2 power generation unit was put into operation,there has been a large vibration on the left side of the boiler wall,and the flow field in the furnace was analyzed by using the full-size 1:1 modeling of the boiler internal structure.Through the hot state test,cold state check,CFD(computational fluid dynamics)flow field analysis,modal analysis and other methods,the main reason for the vibration of the furnace wall was the existence of unstable smoke airflow in the boiler.According to the causes of vibration,the internal and external structure of the boiler is optimized,and the vibration intensity of the furnace wall is reduced by 77%~88%,which further improves the safety of the boiler operation.

关 键 词：锅炉 炉墙振动 流场优化 建模 结构优化 

分 类 号：TK224[动力工程及工程热物理—动力机械及工程]