在线监测大型汽轮机组相对胀差的探  

Approach of Monitoring Differential Expansion between Rotor and Cylinder for Large Steam Turbine

作　　者：张光[1] 张保衡[1] 

机构地区：[1]华北电力大学动力系

出　　处：《华北电力学院学报》1996年第4期55-58,共4页

基　　金：国家攀登计划资助

摘　　要：提出一种计算汽轮机转子轴向热膨胀的二维数学模型，利用ＧＡＬＥＲＫＩＮ有限元法计算转子瞬态温度场之后，再计算出转子轴向热膨胀。A two-dimensional calculation model of the axial thermal expansion for large steam turbine rotor is proposed. The temperature fields of the rotor in transient codition are calculated using GALERKIN finit element method in order to estimate the axial thermal expamsion. This paper also explores The on-line monitoring method of the differential expansion between rotor and cylinder in large steam turbine units.

关 键 词：转子 相对胀差 计算 蒸汽透平 

分 类 号：TK263.61[动力工程及工程热物理—动力机械及工程]