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新型碱化剂(ETAEthanolamine-乙醇胺)具有低挥发性、强碱性、低热分解率的特性,现在世界上已有60%以上核电厂应用ETA代替NH3调节冷却水的pH,使二回路供水系统铁含量下降20%～30%,汽-水两项流区域铁含量下降50%,大大降低了SG二次侧内腐蚀产物的沉积量。对延长SG使用寿命,减少停
The new alkalizing agent (ETAEthanolamine-ethanolamine) has the characteristics of low volatility, strong alkalinity and low thermal decomposition rate. Now more than 60% nuclear power plants in the world have used ETA instead of NH3 to adjust the pH of the cooling water so that the iron of the secondary circuit water supply system The content of iron decreases by 20% -30%, and the iron content in the steam-water flow area decreases by 50%, which greatly reduces the deposition amount of internal corrosion products on the secondary side of SG. SG to extend the service life, reduce the stop