[摘要]压水堆核电站二回路中流动加速腐蚀(FAC)是导致管道失效的主要原因之一,其水化学工况直接关乎核电机组的安全性与经济性。水化学处理中采用的无机胺碱化剂逐渐被有机胺所替代,使用单一有机胺及复合碱化剂的水化学工况可显著降低FAC的速率,提高结构材料的运行寿命。本文针对国内外单一有机胺及复合碱化剂的研究现状指出:复合碱化剂性能优于单一有机胺,且运行成本低;针对复合碱化剂热稳定性问题,提出采用N,N-二乙基羟胺(DEHA)等新型除氧剂代替联胺,可实现复合碱化剂与除氧剂的协同发展。
来源:《热力发电》 作者:郭亭山 赵永福 梁志远 赵钦新
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