大型核电汽轮机组高中压模块降负荷冷却过程安全性分析  

Safety Analysis of Load Reduction Cooling for Large Nuclear Power Turbine HIP Structure

作　　者：章艳[1] 段增辉[1] 陈贝贝[1] 刘伟鹏 杨世香 ZHANG Yan;DUAN Zenghui;CHEN Beibei;LIU Weipeng;YANG Shixiang(Dongfang Turbine Co.Ltd.,618000 Deyang Sichuan China)

机构地区：[1]东方电气集团东方汽轮机有限公司,四川德阳618000

出　　处：《东方电气评论》2025年第1期18-21,共4页Dongfang Electric Review

摘　　要：大型核电汽轮机组高中压合缸结构具有热容量大,停机后冷却较慢的特点。文章介绍了一种加快高中压缸停机冷却速度的降负荷冷却方案。结合电厂实际运行数据对整个高中压模块在降负荷冷却过程中温度、应力及间隙变化进行了详细的定量分析。在保证机组安全性的前提下,加快机组的冷却,缩短检修停机时间,有非常迫切的现实意义与经济价值。The HIP combined cylinder structure of large nuclear power turbine units has the characteristics of large thermal capacity and slow cooling after shutdown.The article introduces various load reduction cooling schemes for HIP cylinder.A detailed quantitative analysis was conducted on the temperature stress and gap changes of the entire HIP module during the load reduction cooling process based on actual operating data of the power plant.Accelerating the cooling of the unit and shortening maintenance downtime while ensuring its safety has urgent practical significance and economic value.

关 键 词：核电汽轮机 降负荷 快速冷却 安全性 

分 类 号：TM623[电气工程—电力系统及自动化]