600MW机组轴颈和轴瓦损伤事故的分析及处理  

The Analyses and Disposals of Abrasion of 600MW Unit's Axle Neck and Bearing

作　　者：文贤馗 钱进[2] 王家胜 王文强 姜延灿 

机构地区：[1]贵州电力试验研究院,贵阳550002 [2]贵州大学,贵阳550004

出　　处：《汽轮机技术》2009年第6期463-464,467,共3页Turbine Technology

摘　　要：某电厂600MW新建机组在整套试运期间发生轴颈和轴瓦损伤事故,通过对事故过程的分析、检查后发现原因是轴承箱喷砂除锈处理的喷丸没有清理干净,喷丸进入轴承后对轴颈和轴瓦造成损伤,通过对轴颈进行现场车削法减径处理后机组运行正常。Combining the inspecting and analyses to an axle neck and bearing abrasion accident happened on a new-building 600MW unit during the commissioning periods, this paper presents the accident resulted from the unit starting up with remained sandblast of the de-rusting to bearing-box entering the bearing, makes certain that the turning is an appropriate one by comparing four disposal methods. After the stretch - reducing handle, the unit starts and operates normally.

关 键 词：轴颈损伤 分析处理 喷丸 车削法 

分 类 号：TK268[动力工程及工程热物理—动力机械及工程]