CARR二回路冷卻系統(tǒng)碳鋼管道的腐蝕與防護
發(fā)布時間:2018-08-26 07:38
【摘要】:針對中國先進研究堆(CARR)的特殊性,以靜態(tài)掛片實驗與動態(tài)模擬實驗相結(jié)合,采用掛片失重的方法計算腐蝕速率,著重從Cl-、SO2-4、Mg2+和Ca2+濃縮比,pH值,緩蝕阻垢劑濃度等方面開展了碳鋼腐蝕影響因素的分析與研究。結(jié)果表明,在CARR二回路中,Cl-、SO2-4、Mg2+和Ca2+的濃縮比為2~3,pH值為8.0~8.5,緩釋阻垢劑LJ-301的濃度為0.12g/L左右的水質(zhì)為最佳狀態(tài),經(jīng)24h浸泡或循環(huán)水沖擊下,20#碳鋼的防腐效果明顯。
[Abstract]:In view of the particularity of (CARR) of China Advanced Research reactor, the corrosion rate is calculated by using the method of weightlessness of hanging sheet combined with static hanging sheet experiment and dynamic simulation experiment, especially from the pH value of Cl-,SO2-4,Mg2 and Ca2 concentration ratio. The factors affecting corrosion of carbon steel were analyzed and studied in the aspects of corrosion and scale inhibitor concentration. The results show that in the secondary loop of CARR, the concentration ratio of Cl-so _ 2-SO _ 4H _ 2mg _ 2 and Ca2 is 2 ~ (3) O ~ (3) pH = 8.0 ~ 8.5, and the best condition is that the concentration of LJ-301 is about 0.12g/L. The anticorrosive effect of 20 # carbon steel is obvious after 24 h immersion or circulatory water impact.
【作者單位】: 中國原子能科學研究院反應堆工程研究設計所;
【分類號】:TL411;TG174
本文編號:2204180
[Abstract]:In view of the particularity of (CARR) of China Advanced Research reactor, the corrosion rate is calculated by using the method of weightlessness of hanging sheet combined with static hanging sheet experiment and dynamic simulation experiment, especially from the pH value of Cl-,SO2-4,Mg2 and Ca2 concentration ratio. The factors affecting corrosion of carbon steel were analyzed and studied in the aspects of corrosion and scale inhibitor concentration. The results show that in the secondary loop of CARR, the concentration ratio of Cl-so _ 2-SO _ 4H _ 2mg _ 2 and Ca2 is 2 ~ (3) O ~ (3) pH = 8.0 ~ 8.5, and the best condition is that the concentration of LJ-301 is about 0.12g/L. The anticorrosive effect of 20 # carbon steel is obvious after 24 h immersion or circulatory water impact.
【作者單位】: 中國原子能科學研究院反應堆工程研究設計所;
【分類號】:TL411;TG174
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