摘要
汽轮机差胀反映出汽轮机动静部分的间隙变化,是保护汽轮机安全运行的重要参数之一。了解差胀的概念、测量原理及变化趋势,就可以在机组启动及运行期间,通过监视差胀的参数变化,结合绝对膨胀、轴向位移等汽轮机滑销系统参数的变化情况,判断汽轮机动静部分的状态。在参数异常时采取相应的调整措施,避免发生动静部分的摩擦。
The difference expansion of the steam turbine reflects the gap change between the dynamic and static parts of the turbine, which is one of the important parameters to protect its safe operation. Understanding the ideal of the difference expansion, measuring principles and change trend can judge the status of turbine dynamic and static parts according to the monitored change of difference expansion parameters, combined change of absolute expansion, axial displacement and other parameters of the turbine anchorage system during start-up and operation of the turbine. The corresponding regulating measures should be taken for abnormal parameters to avoid friction between dynamic and static parts.
出处
《电力建设》
2006年第11期47-50,共4页
Electric Power Construction
关键词
汽轮机
差胀
测量
滑销系统
steam turbine
difference expansion
measurement
anchorage system
