俄制核电末级叶片围带磨损原因分析及间隙修复  

Analysis of Wear Reasons and Gap Repair of the Last Stage Blade Shroudsin Russian Made Nuclear Power Plants

作　　者：马义良[1] 刘永生[2] 张福海 张勇[2] 严巍峰 蒋华 MA Yi-liang;LIU Yong-sheng;ZHANG Fu-hai;ZHANG Yong;YAN Wei-feng;JIANG Hua(Harbin Turbine Company Limited,Harbin 150046,China;Jiangsu Nuclear Power Co.,Ltd.,Lianyungang 222000,China;Nuclear Power Operation Research(Shanghai)Co.,Ltd.,Shanghai 200000,China;Zhongdian Shentou Power Generation Co.,Ltd.,Shuozhou 036800,China)

机构地区：[1]哈尔滨汽轮机厂有限责任公司,哈尔滨150046 [2]江苏核电有限公司,连云港222000 [3]核电运行研究(上海)有限公司,上海200000 [4]中电神头发电有限责任公司,朔州036800

出　　处：《汽轮机技术》2024年第5期363-367,378,共6页Turbine Technology

摘　　要：采用试验手段和有限元方法对某核电汽轮机末级叶片围带磨损原因进行了分析,并基于叶片围带在不同间隙下的安全性和经济性分析,确定了叶片安全运行时的围带间隙范围,给出了叶片围带间隙的修复方法和实施工艺流程,为后续末级叶片检修提供了重要的理论依据。In this paper,both experimental and FE methods are used to analyze the factors which lead to the wear and tear of the last stage blade shrouds of a nuclear power turbine.Based on the safety and economic consideration of shrouds under different clearances,the range of shrouds clearance during safe operation is determined.Further,the repairation method and implementation process of the shrouds clearance are given,which will provide an important theoretical basis for the last stage blade maintenance.

关 键 词：核电汽轮机 末级叶片 围带磨损 间隙修复 

分 类 号：TM623[电气工程—电力系统及自动化]