部件材料损耗在线监测新技术

• 作 者: 米浩林
• 出 处: 热力发电
• 发表日期: 1989年06期
• 关键词: 表面材料 金属损耗 损耗量 在线监测方法 静叶片 监测试验 放射性核素 直接测量 合作单位 表面层

大火电厂中,因固体颗粒的冲蚀、腐蚀及磨损,使锅炉炉管、汽轮机动静叶片、轴承、闸门及其它部件的寿命受到了很大的影响。采用在线监测方法直接测量关键部件的金属损耗量,可使电站在故障发生之前更换磨损部件或采取适当的措施。但是,截至目前可用于监测关键部件表面材料损耗的方法不多,并且没有一种方法可精确地测定部件的在线运行状况。

Large thermal power plant, due to erosion of solid particles, corrosion and wear, so that boiler tubes, steam turbine blades, bearings, gates and other parts of the life expectancy has been greatly affected. Using online monitoring methods to directly measure the amount of metal loss in critical components allows the plant to replace worn components or take appropriate action prior to the failure. However, few methods have been available so far to monitor material loss on critical component surfaces and there is no way to accurately determine the on-line operation of components.