WNS锅炉回燃室管孔区开裂泄漏的事故分析  

Accident Analysis on Cracking Leaks in Pipe Hole Area of WNS Boiler Reversal Chamber

作　　者：王晓峰 洪万亿 Wang Xiaofeng;Hong Wanyi(Fujian Boiler Pressure Vessel Inspection Institute,Quanzhou Branch Quanzhou 362000)

机构地区：[1]福建省锅炉压力容器检验研究院泉州分院

出　　处：《中国特种设备安全》2019年第6期77-80,共4页China Special Equipment Safety

摘　　要：对一起WNS蒸汽锅炉回燃室管孔区泄漏的事故进行调查和分析。该锅炉回燃室管板管孔区普遍存在裂纹,裂纹均为向外辐射状且数量众多(共427条)。分析得出事故的主要原因为使用单位调高燃气输入压力,致使火焰直接加热回燃室管孔区。烟管管端过热,在交变应力下产生裂纹和开裂。Investigation and analysis of leakage in pipe hole area of WNS boiler reversal chamber are taken.There are lots of cracks in the pipe hole area of WNS boiler reversal chamber. The cracks are all radiating outward with a total of 427. The result shows that the main reason for the accident is the increase of input pressure, which causes pipe hole area directly heated by the flame in WNS boiler reversal chamber. The pipe end is overheated, cracks are generated with alternating stress.

关 键 词：锅炉 回燃室 裂纹 泄漏 

分 类 号：X933.2[环境科学与工程—安全科学]