摘要
蒸汽发生器二次侧水压试验需将管板加热到要求温度,并在整个试验期间监测温度保持在一定范围内,其主要目的是防止蒸汽发生器管板发生脆性破坏,并保持足够的安全余量。通过对管板的温度要求、加热方式、管板热容量等方面进行分析和估算,最终设计合理的管板加热方案,以满足蒸汽发生器二次侧水压试验对管板温度的要求。秦山核电二期1,2号机组大修,成功完成了4台蒸汽发生器二次侧水压试验,管板加热效果良好,加热温度及加热时间满足预期要求。
To prevent brittle rupture and ensure adequate safety margin of the tubesheet of steam generator,the tubesheet needs to be heated to required temperature,and the monitoring temperature needs to be kept within a certain range during the secondary side hydrostatic test of steam generator.This paper introduces analysis and estimations of temperature requirements,heating methods,heat capacity,etc.of tubesheet,and finally designs a reasonable heating scheme to satisfy temperature requirements of tubesheet during the secondary side hydrostatic test.During the major overhaul of Qinshan PhaseⅡNuclear Power Plant Unit 1 and Unit 2,the secondary side hydrostatic tests of four steam generators were completed successfully with good heating effects of tubesheet,and the heating temperature and time meet the expected requirements.
作者
吴雷
李夏书
代巍巍
王新刚
毛海谊
李文越
万川
WU Lei;LI Xiashu;DAI Weiwei;WANG Xingang;MAO Haiyi;LI Wenyue;WAN Chuan(CNNP Nuclear Power Operations Management Co.,Ltd.,Haiyan 314300,China)
出处
《压力容器》
北大核心
2021年第3期73-79,共7页
Pressure Vessel Technology
关键词
蒸汽发生器
二次侧水压试验
管板
加热
韧脆转变
steam generator
secondary side hydrostatic test
tubesheet
heating
ductile-brittle transition
