摘要
某机组在基建调试阶段首次启动过程中,中速暖机1200r/min工况下振动缓慢爬升,15分钟后振动急剧增长,被迫打闸停机。通过试验分析,明确诊断出机组振动故障原因是活动式密封油挡发生碰磨所致。去掉活动式密封油挡后,再次启动完全消除了该机组的振动故障,使机组试运工作得以顺利进行。
The vibration climbed slowly with speed of 2100r/min during warming up while a unit began to debug in the first period of construction, but the unit had to be tripped when the vibration gone up rapidly after 15 minutes. By testing and analyzing, it was confirmed that the vibration was caused by the rubbing of movable sealed oil blocking. After sealed oil blocking was removed later, the vibration trouble was completely disappeared,the unit was coming to operation smoothly when restarted again.
出处
《热力透平》
2005年第4期238-241,共4页
Thermal Turbine
关键词
振动
活动式密封油挡
碰磨
vibration
active-type sealed oil blocking
contact
