某型汽轮机试车台位设计及强度分析
Design and Strength Analysis of a Type of Steam Turbine Test Station
王政凯 1张玉胜 1张桂明 1汪昶蕊 1马若晨 1刘章波 1张欣 1彭桢 1黄雁飞 1张凯1
作者信息
- 1. 东方电气集团东方汽轮机有限公司,四川 德阳
- 折叠
摘要
某型汽轮机制造需在厂内进行空负荷试车试验,用以检验机组各项性能.本文依据厂内试车要求设计试车台位,并通过数值模拟对台位进行了强度分析与振动特性分析,结果表明台位垫箱单独承载计算与整体计算结果一致,各垫箱承载后形变量较小,其应力小于材料屈服强度,表明设计垫箱强度满足机组试车承载要求;各垫箱固有频率均大于转子激励频率,且各阶振型均分布在汽缸缸处,表明台位垫箱刚度较好,满足试车使用要求.
Abstract
The empty load test is needed to test the performance of a certain type of steam turbine in the factory.In this paper,the test stand is designed according to the requirements of the factory test,and the strength analysis and vibration characteristics analysis of the stand are carried out through numerical simula tion.The results show that the single bearing calculation of the cushion box is consistent with the overall cal culation results.The deformation of each cushion box is small after bearing,and its stress is less than the yield strength of the material,which shows that the strength of the design cushion box meets the require ments.The natural frequencies of each cushion box are greater than the excitation frequency of the rotor,and the vibration modes are distributed at the cylinder,indicating that the stiffness of the cushion box is good and meets the requirements of the test run.
关键词
汽轮机/试车/Workbench/强度分析Key words
steam turbine/test/Workbench/strength analysis引用本文复制引用
出版年
2024
NETL
NSTL
万方数据