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某600MW机组凝汽器水侧硅垢的清洗

Yinhui DAI, Hangwei FU,Haichao ZHENG,Wei LIAN, Zhiwei ZHANG, Tingting JIA

Cleaning World（2018）

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Abstract
硅垢是凝汽器换热管水侧垢层的一种形式之一,由于化学性质相对稳定,传统的氨基磺酸清洗工艺对该类垢层的去除能力有限.文中考察了不同清洗工艺对内蒙古某电厂600 MW机组凝汽器水侧硅垢的清洗效果,确定先碱洗(氢氧化钠-磷酸三钠)后氨基磺酸酸洗的最优清洗工艺.此工艺工业实施后,该机组凝汽器不锈钢管内表面清洗干净,无残余硬垢,无泥垢,各项数据均达到了《火力发电厂凝汽器化学清洗及成膜导则》(DL/T 957-2017)的相关要求.
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