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PWR核电站蒸汽发生器传热管损坏是影响核电站安全运行和限制寿命的主要原因。90%的传热管损坏是由腐蚀引起的,其中蒸汽发生器管板和管支撑板上的淤渣和下面管子的腐蚀尤其严重。目前,只有通过化学清洗才能有效清除所有淤渣。本工作研究内容包括:确定化学清洗剂组分、工艺条件,淤渣化学清洗动态试验,
PWR nuclear power plant steam generator heat pipe damage is the main reason for the safe operation of nuclear power plants and limit life expectancy. Damage to 90% of heat transfer tubes is caused by corrosion, where the sludge on the tubesheet and tube support plate of the steam generator and the corrosion of the tubes below are particularly severe. At present, all sludge is effectively removed by chemical cleaning. This work includes: to determine the composition of chemical cleaning agents, process conditions, sludge chemical cleaning dynamic test,