600 MW机组凝汽器严重结垢原因分析

Jinxiang LIU,Xinmin YUAN,Jinchen MA,Fanglin ZHA, Lei SHI

Hunan Electric Power(2017)

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Abstract
某600 MW亚临界汽包炉1号机在大修中发现凝汽器不锈钢管严重结垢的问题.对垢样的外观,垢量和成分进行了分析.从原水水质、 运行控制、 胶球清洗投运情况和阻垢缓蚀剂质量等方面调查了事故原因.调查结果表明,不锈钢管结垢严重是由原水水质易结垢且阻垢缓蚀剂加药控制存在偏差,胶球清洗投运不正常等多重因素共同造成的.
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