200MW再热式汽轮机异常振动的防治  

Preventions on Abnormal Vibration of 200 MW Reheat Turbine

作　　者：魏毓华 

机构地区：[1]东北电力科学研究院有限公司,辽宁沈阳110006

出　　处：《东北电力技术》2010年第4期1-9,共9页Northeast Electric Power Technology

摘　　要：针对国产200MW机组启停运行中的异常振动,从汽轮机运行技术方面,结合试验数据和机组结构特点,阐明了运行技术方式对机组整体安全运行的影响,提出了新的启动运行技术模式和方法。现场试验表明对消除异常振动等问题效果明显,并对某些运行技术问题提出了新的认识,对大型再热式汽轮机上的一些技术设备进行改进很有必要。启停运行技术方式可供更大型再热机组参考。In view to abnormal vibration of homemade 200 MW units occurred during start-up and shutdown, the impact of operating technical method on general unit safety operation is stated in regard to turbine operating technique combining test data and unit structure features. A new start-up operating technique mode and method is proposed thereafter. Field test shows it has an obvious effect in elim- inating abnormal vibration, new ideas are put forward f,r solving some operating problems, it is necessary to make improvements on technical equipment for large-scale reheat turbine. It is a reference for larger-scale reheat unit concerning start-up and shutdown operating technique,

关 键 词：异常振动 弯轴 温控比例 电液调节系统 滑压运行 

分 类 号：TK268.1[动力工程及工程热物理—动力机械及工程]