摘要
以某超超临界机组的高压模块的平衡盘作为研究对象,利用ABAQUS软件建立高压模块的轴对称模型,并根据电厂实际运行工况的蒸汽温度压力数据计算加载边界条件,分析了实际启动和满负荷运行工况下高压平衡盘及前后密封区域的温度、应力和位移的变化及密封处径向间隙变化规律。研究表明:运行过程中服役工况下温度和应力产生了波动,在启动阶段最为剧烈,稳态运行时波动幅度较小;启动阶段径向间隙会明显减小。
With the high-pressure module balance disc of an ultra-supercritical steam turbine as the research object,ABAQUS is used to establish an axisymmetric model of a high-pressure module,and the loading boundary conditions are calculated based on the steam temperature pressure data of the actual operating conditions of the power plant.In this paper,the changes of temperature,stress and displacement of the high-pressure balance disc and the front and rear sealing areas,and the variation of radial clearance at the seal are analyzed under the actual starting and full-load operating conditions.The results show that the temperature and stress In addition,the radial clearance during the start state is significantly reduced.
作者
赵文辰
吴仕芳
王炜哲
ZHAO Wen-chen;WU Shi-fang;WANG Wei-zhe(Key Laboratory for Power Machinery and Engineering of Ministry of Education,School of Turbine Research Institute,Shanghai Jiaotong University,Shanghai,China,200240;Shanghai Turbine Plant,Shanghai Electric Power Generation Equipment Co.,Ltd.,Shanghai,China,200240;Gas Turbine Research Institute,Shanghai Jiaotong University,Shanghai,China,200240)
出处
《热能动力工程》
CAS
CSCD
北大核心
2020年第2期56-62,共7页
Journal of Engineering for Thermal Energy and Power
关键词
高压模块
平衡盘
服役工况
波动
径向间隙
high pressure module
balance disc
actual working condition
radial clearance fluctuate under service operation conditions
especially during the start state
while they have small fluctuations under the steady state operation
作者简介
赵文辰(1994-),男,江苏无锡人,上海交通大学硕士研究生,E-mail:owenzhao@sjtu.edu.cn;通讯作者:王炜哲(1977-),男,河南三门峡人,上海交通大学副研究员,E-mail:wangwz0214@sjtu.edu.cn.
