锅炉水冷却管爆裂原因分析  

Bursting Reason Analysis for Water Cooling Tube of Boiler

作　　者：陈现景[1] 张守鹏 唐孔科[1] 杨晓洁[1] 滕彦[1] 杨森[1] 宋甲芳[1] 

机构地区：[1]山东省产品质量监督检验研究院,济南250100 [2]中国重汽集团济南动力有限公司,济南250220

出　　处：《理化检验（物理分册）》2010年第5期337-339,共3页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：通过宏观检查、金相检验、化学成分及能谱分析等方法对锅炉水冷却管爆裂原因进行了分析。结果表明:爆裂处管子局部受热,导致显微组织发生变化,使钢管金属材料的力学性能下降,受热面变形,管子慢慢胀粗导致管壁减薄,引起管子鼓包、穿孔直至开裂,造成爆管。By means of macro inspection,metallographic examination,chemical composition analysis and EDS analysis,the bursting reasons of the water cooling tube of boiler were analyzed.The results showed that the tube where was bursting had been local heating,the microstructure had changed,the mechanical properties of metal materials of the tube decreased,thermal deformation happened on the heating surface,causing the pipeline wall thinning,the bulge deformation and perforation,tube bursting.

关 键 词：锅炉水冷却管 局部受热 爆裂 超温运行 

分 类 号：TK229.5[动力工程及工程热物理—动力机械及工程]