摘要
蒸汽发生器传热管是反应堆冷却剂压力边界的主要组成部分,这就意味着必须保持传热管的完整性。然而,运行经验表明,蒸汽发生器传热管会出现各种降质。这些降质可能会导致管子的泄漏或破裂,使反应堆冷却剂丧失,并提供了直接通向二回路和释放到环境中去的途径。本文将介绍几种已知的传热管降质,传热管完整性性能准则,并对蒸汽发生器传热管完整性进行评估。
Steam generator tubes are a main part of the reactor coolant pressure boundary. This means that their integrity must be maintained. However, operating experience shows various types of tube degradation to occur in the SG tubing, which may lead to SG tube leaks or ruptures and create a loss of reactor coolant through the SG, therefore providing a direct path to the secondary cooling system and the environment. In this paper, the major types of known SG tube degradation, the tube integrity performance criteria are described and SG tube integrity is evaluated.
出处
《核安全》
2009年第2期37-42,共6页
Nuclear Safety
关键词
蒸汽发生器
传热管
降质
完整性
steam generator
heat transfer tube
degradation
integrity
