摘要
针对哈汽1 000 MW汽轮机在现场屡屡出现低压缸的动静碰摩问题,通过对现场振动数据分析,结合低压缸的结构特点,得出故障原因是由于轴颈在轴承中的大幅浮起和低压内缸严重驼背变形所致。据此提出,现场可通过采用抬高低压内缸、增大右上方通流间隙、精细动平衡等措施,来消除该型机组低压缸的动静碰摩故障。这些措施已成功应用于工程实践。
With a view to solving the LP cylinder rubbing vibration of 1 000 MW units designed by Harbin Turbine Company Limited （HTC）, the on-site vibration data and the structure characteristics of LP cylinder are studied. It is found that the fault is due to the journal rise significantly in bearings and the severe hunchback deformation of LP inner cylinder. The rubbing faults can be eliminated effectively by raising the LP inner cylinder on site, enlarging the flow passage clearance in upper right, conducting precision dynamic balance etc. These methods have be applied to engineering practice successfully.
出处
《热力透平》
2013年第1期58-61,共4页
Thermal Turbine
