摘要
核电站的蒸汽发生器(SG)在运行期间,管板表面、传热管表面、支撑板表面以及传热管和支撑板的间隙处均发现积污问题。SG中的积污不仅会加剧SG腐蚀损伤,而且会引起SG蒸汽出口压力降低等问题,影响核电站的安全经济高效运行。本文基于文献阐述了SG中积污(管垢和泥渣)的形成机制、影响因素和危害,并概述了积污的检测、清洗和控制方法。
During the operation of nuclear power plants, fouling occurs on tube sheets, heat transfer tubes, support plates and crevices between tubes and tube support plates in steam generator. The fouling in steam generator not only aggravates the corrosion of the steam generator itself, but also leads to a steam outlet pressure decrease, which then affects the safe, economic and highly efficient operation of nuclear power plants. The fouling problem of steam generators was reviewed in terms of the relevant formation mechanisms and key influencing factors, as well as the detrimental effect of the fouling（including scale and sludge） on the steam generator. Finally, detection methods, cleaning-and control-measures for the fouling were also introduced.
作者
梅金娜
韩姚磊
储平平
薛飞
彭群家
MEI Jinna;HAN Yaolei;CHU Pingping;XUE Fei;PENG Qunjia(Suzhou Nuclear Power Research Institute,Suzhou 215004,China)
出处
《腐蚀科学与防护技术》
CAS
CSCD
北大核心
2018年第4期435-440,共6页
Corrosion Science and Protection Technology
基金
中国广核集团尖峰计划项目(CGNPC-T-2016-003)~~
关键词
蒸汽发生器
积污
管垢
泥渣
形成机制
steam generator
fouling
tube scale
sludge
formation mechanism
