某660MW超临界W型火焰锅炉水冷壁拉裂数值模拟研究  

Numerical Simulation Study on Water Wall Cracking of 660 MW Supercritical W-shaped Flame Boiler

作　　者：郑刚 刘友利 赵义 冉燊铭 俸锦兴 马定波 莫春鸿 李小荣 秦荣江 李铁 ZHENG Gang;LIU Youli;ZHAO Yi;RAN Shenming;FENG Jinxing;MA Dingbo;MO Chunhong;LI Xiaorong;QIN Rongjiang;LI Tie(Dongfang Boiler Group Co.,Ltd.,611731,Chengdu,China;Guoneng Zhijin Power Generation Co.,Ltd.,552106,Bijie,Guizhou,China)

机构地区：[1]东方电气集团东方锅炉股份有限公司,四川自贡643001 [2]国能织金发电有限公司,贵州毕节552106

出　　处：《东方电气评论》2024年第2期42-49,共8页Dongfang Electric Review

摘　　要：本文通过对某660 MW超临界W型火焰锅炉水冷壁拉裂问题进行分析,采用数值模拟和应力分析对水冷壁应力进行比较,分析了影响水冷壁拉裂的主要因素和原因,发现了水冷壁膨胀受阻导致水冷壁热应力急骤上升是造成水冷壁开裂的根本原因,从而为后续水冷壁拉裂治理奠定了理论基础。This article analyzed the problem of water wall cracking in 660 MW supercritical W-shaped flame boiler.The stresses of the water wall were compared by numerical simulation and stress analysis techniques,and the main factors and causes that affect water wall cracking were analyzed.It was found that the rapid increase in thermal stress caused by the blockage of water wall expansion was the fundamental reason for water wall cracking,which established the theoretical foundation for the subsequent treatment of water wall cracking.

关 键 词：W型火焰锅炉 水冷壁拉裂 应力分析 

分 类 号：TM621.2[电气工程—电力系统及自动化]