汽轮机汽封磨损及防止磨损的措施

摘要

在汽轮机启动和停机过程中，由于诸多因素的影响使得动静间隙发生变化，汽轮机采用的原传统结构汽封常常和转子发生磨擦，影响汽轮机的安全性和经济性。新型“可调式汽封”的使用，使在运机组的安全性和经济性得到良好改善。%In the process of start up and shutdown of a steam turbine, manyfactors can influence the clearance variation between the rotating and stationary components. The traditional seal rings in a steam turbine often cause rubbing problems with the rotator. This will decrease the safety and efficiency of the steam turbine. The application of “new type retractable seal rings” can greatly increase the safety and efficiency of the steam turbine.