摘要
笔者对辖区内的电站锅炉范围内管道进行了检验检测,发现大部分母管制电站锅炉主蒸汽管道与母管前并汽门的上下对接焊缝存在较长裂纹。本文主要以某化工自备电厂3炉2机母管制主蒸汽管道检验检测为例,分析了母管前并汽门对接焊缝裂纹产生的原因,并提出了几点建议和预防措施,以期引起使用单位和检验人员的重视,及时发现并消除隐患,避免主蒸汽管道事故的发生。
The utility boiler external piping had been carried on the inspection and detection in the jurisdiction of the author.There are long cracks were founded in the upper and lower butt welds of the main steam pipeline with the Parallel steam valve.This paper mainly takes the inspection and detection of the main steam pipeline of 3 boilers and 2 turbines of a chemical self-owned power plant as an example,the causes of the cracks in butt welds of the front parallel valve of the pipe-main were analyzed,and some suggestions and preventive measures were put forward,in order to attract the attention of the users and inspectors,discover and eliminate the hidden dangers in time,and avoid the occurrence of the main steam pipe accidents.
作者
李建
张剑
陈昕
张永春
宋高峰
Li Jian;Zhang Jian;Chen Xin;Zhang Yongchun;Song Gaofeng(Special Equipment Safety Supervision Inspection Institute of Jiangsu Province,Nanjing 210036;Technology Innovation Center of Safty,Energy-saving and Environmental protection for Boiler for Jiangsu Province Market Regulation,Nanjing 210036)
出处
《中国特种设备安全》
2024年第11期84-87,93,共5页
China Special Equipment Safety
基金
江苏省特检院科技计划项目[KJ(Y)2023011、KJ(Y)202410]。
关键词
母管制电站锅炉
主蒸汽管道
并汽门
焊缝
裂纹
Pipe-main scheme utility boiler
Main steam pipeline
Parallel steam valve
Weld
Crack
