超超临界机组可倾瓦低速碾瓦现象的分析处理.doc
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超超临界机组可倾瓦低速碾瓦现象的分析处理,摘要：针对东汽生产的超超临界n660-25/600/600汽轮机在启动或停机过程中，汽轮机#1、#2轴瓦出现低速碾瓦事故，对汽轮机顶轴系统和润滑油系统、汽轮机启动运行方式、可倾瓦轴承结构进行研究，对可能导致轴瓦低速碾瓦的原因进行分析，采取了相应的技术措施，重新增加了#1、#2轴承顶轴油系统；加大了#1、#2轴瓦进油节流...
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摘要：
针对东汽生产的超超临界N660-25/600/600汽轮机在启动或停机过程中，汽轮机#1、#2轴瓦出现低速碾瓦事故，对汽轮机顶轴系统和润滑油系统、汽轮机启动运行方式、可倾瓦轴承结构进行研究，对可能导致轴瓦低速碾瓦的原因进行分析，采取了相应的技术措施，重新增加了#1、#2轴承顶轴油系统；加大了#1、#2轴瓦进油节流孔直径；增大了该轴瓦的曲率半径；更改了机组运行方式等。通过以上的技术改造，取得了非常明显效果。通过长时间的运行，彻底解决了东汽相同机组低速碾瓦的事故。
关键词：倾瓦轴承、顶轴油、超温
Abstract:
In view of the east steam production ultra supercritical N660-25/600/600 steam turbine in the start or the engine off process, steam turbine #1, the #2 axle bush appears the low speed to grind the tile accident, to the steamship roof axis system and the lubricating oil system, the steam turbine starts the movement way, may lean the tile bearing structure to conduct the research, to possibly causes the axle bush low speed to grind the tile the reason to carry on the analysis, has taken the corresponding technical measure, increased #1, the #2 bearing has gone against the axle oil system; Enlarged #1, the #2 axle bush has entered the oil throttle diameter; Has increased this axle bush radius of curvature; Changed the unit movement way and so on.Through above technological transformations, has obtained the extremely tangible effect.Through the long time movement, the thorough settlement east vapor phase has ground the tile with the unit low speed the accident..
Key word: Leans the tile bearing, goes against the axle oil ultra, warm
针对东汽生产的超超临界N660-25/600/600汽轮机在启动或停机过程中，汽轮机#1、#2轴瓦出现低速碾瓦事故，对汽轮机顶轴系统和润滑油系统、汽轮机启动运行方式、可倾瓦轴承结构进行研究，对可能导致轴瓦低速碾瓦的原因进行分析，采取了相应的技术措施，重新增加了#1、#2轴承顶轴油系统；加大了#1、#2轴瓦进油节流孔直径；增大了该轴瓦的曲率半径；更改了机组运行方式等。通过以上的技术改造，取得了非常明显效果。通过长时间的运行，彻底解决了东汽相同机组低速碾瓦的事故。
关键词：倾瓦轴承、顶轴油、超温
Abstract:
In view of the east steam production ultra supercritical N660-25/600/600 steam turbine in the start or the engine off process, steam turbine #1, the #2 axle bush appears the low speed to grind the tile accident, to the steamship roof axis system and the lubricating oil system, the steam turbine starts the movement way, may lean the tile bearing structure to conduct the research, to possibly causes the axle bush low speed to grind the tile the reason to carry on the analysis, has taken the corresponding technical measure, increased #1, the #2 bearing has gone against the axle oil system; Enlarged #1, the #2 axle bush has entered the oil throttle diameter; Has increased this axle bush radius of curvature; Changed the unit movement way and so on.Through above technological transformations, has obtained the extremely tangible effect.Through the long time movement, the thorough settlement east vapor phase has ground the tile with the unit low speed the accident..
Key word: Leans the tile bearing, goes against the axle oil ultra, warm
