摘要
对低压蒸发器流动加速腐蚀后泄漏的原因进行详细分析,并提出流动加速腐蚀后泄漏的处理对策。结果表明,4台余热锅炉低压蒸发器换管后,未再发生低压蒸发器出口集箱处弯头异常泄漏的事件;同时,对更换后的低压蒸发器管子进行壁厚测量检查,也未再发现管子壁厚减薄的现象,说明处理措施取得了较好的效果。
The causes of leakage after flow accelerated corrosion of low-pressure evaporator are analyzed in detail,and the treatment countermeasures of leakage after flow accelerated corrosion are put forward. The results show that after the tubes of the low-pressure evaporators of the four waste heat boilers were changed, the abnormal leakage of the elbow at the outlet header of the low-pressure evaporator never occurred again;At the same time, the wall thickness of the replaced low-pressure evaporator pipe was measured and checked, and the phenomenon of pipe wall thickness thinning was not found again, and good results were achieved.
作者
陈金国
CHEN Jinguo(China Shipping Fujian Gas Power Generation Co.,Ltd.,Putian Fujian 351100)
出处
《河南科技》
2021年第29期39-41,共3页
Henan Science and Technology
关键词
立式余热锅炉
低压蒸发器
流动加速腐蚀
vertical waste heat boiler
low pressure evaporator
flow accelerated corrosion
