核电汽轮机轴系胀差动态监控技术改进与应用  

Improvement and Application of Nuclear Steam Turbine Shafting Differential Expansion Dynamic Monitoring Technology

作　　者：高伟 李庆华 孙振平 

机构地区：[1]中广核工程有限公司,深圳518124

出　　处：《汽轮机技术》2016年第4期294-296,304,共4页Turbine Technology

摘　　要：针对国内某核电项目半速汽轮机在调试、运行期间多次发生转子轴向位移和胀差超标问题,直接影响机组安全、稳定运行。通过对该型式汽轮机转子轴向位移、胀差、绝对膨胀与"零"值关系分析和研究,依据相关设计运行程序文件,结合现场汽轮机转子轴系实际安装、调试过程监控数据,确定了汽轮机转子胀差、轴向位移及绝对膨胀变化分析和控制方法。解决了该型式核电汽轮机转子胀差、轴向位移、绝对膨胀及定"零"位等问题,实现了对机组的可靠监视和保护。As the problem of the nuclear half-speed steam turbine axial displacement and shafting differential expansion excessive during commissioning and operation period happened several times in a nuclear power plant project, it directly affects the safe and stable operation of the unit. Based on the analysis and research on the relationship between axial displacement, shafting differential expansion, absolute expansion and ＂zero＂ value of the rotor of this type nuclear steam turbine, according to the relevant design document about the unit operation program, combined with the actual installation and commissioning process monitoring data of the turbine shafting, the analysis and control method of the steam turbine shafting differential expansion, axial displacement and absolute expansion are determined. Solved the problem of the shafting differential expansion, axial displacement, absolute expansion and ＂zero＂ position of this type nuclear steam turbine, realized the reliable monitoring and protection of the unit.

关 键 词：核电半速汽轮机 轴向位移 动态监控 胀差 

分 类 号：TK264.2[动力工程及工程热物理—动力机械及工程]