越南某超临界W火焰锅炉水冷壁防拉裂研究  

The Study of Water Wall Anti-Cracking of Supercritical W-Flame Boiler in Vietnam

作　　者：徐金苗 奉林 XU Jinmiao;FENG Lin(China Energy Engineering Group Guangdong Electric Power Design Institute Co., Ltd.,Guangzhou 510663, China;Vinh Tan 1 Power Company Limited, Phan Rang 800000, Vietnam)

机构地区：[1]中国能源建设集团广东省电力设计研究院有限公司,广东广州510663 [2]越南永新一期电力有限公司,越南平顺800000

出　　处：《锅炉技术》2020年第3期64-69,共6页Boiler Technology

摘　　要：通过对中国和越南两国600 MW超临界W火焰锅炉的订货及运行业绩的介绍,调研了已投运电厂的水冷壁拉裂情况。根据现场实际运行情况,分析了水冷壁拉裂的原因,其根本原因是炉膛内水平方向上热负荷的偏差。结合越南该项目,从设计、安装、调试运行3个方面介绍了设置水冷壁中间完全混合集箱等防止水冷壁拉裂的相关措施及效果。This paper introduces the order and operation performance of 600 MW supercritical W-flame boiler in China and Vietnam.The investigation and survey results about 600 mw supercritical W-flame boiler water wall cracking are indicated.The reason of water wall cracking is analyzed according to the boiler operation and the main reason is the furnace thermal deviation in horizontal direction.The paper indicated the performance and some measures to prevent the water wall cracking from design,installation and commissioning&operation in Vietnam power plant.The fully mixing header is provided on the transitional section of the water wall,which is the most useful method to prevent the water wall cracking.

关 键 词：超临界 W火焰 水冷壁 拉裂 

分 类 号：TK229.2[动力工程及工程热物理—动力机械及工程]