田湾核电站主泵轴承汽蚀磨损CFD研究

Nuclear Power Engineering(2016)

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Abstract
田湾核电站采用水润滑轴承,在核电厂运行中轴承释热率一直偏高,轴瓦存在较严重的磨损.针对主泵轴承的出现的问题,采用计算流体动力学(CFD)方法分析主泵轴承动静轴瓦之间微小空间内流体的流动特性和压力分析.分析表明:主泵轴承释热率偏高和频繁磨损的根本原因是轴承室空化汽蚀;空化汽蚀的发生是由局部区域的流动加速效应引起的.
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Key words
cavitation abrasion,main pump
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