期刊论文

Compatibility of Condensate Polishing Resin with Dodecylamine in Nuclear Power Plant

Zhu, Z.

中文

原子能科学技术

1000-6931

2018

52

9

1569-1575

10.7538/yzk.2017.youxian.0814

(2013GK2006):湖南省科技计划重点项目资助 (CX2016B415):湖南省研究生科研创新项目资助

本校为第一且通讯机构

压水堆核电站二回路乙醇胺(ETA)工况下加入十二胺(DDA)的复合加胺工况,可大幅减少蒸汽发生器(SG)中的淤渣沉积量,是一种前景广阔的二回路水质调节方式。但DDA可能会污染凝结水精处理树脂。为此,本文选用3种树脂,在25、40、55 ℃下进行DDA和ETA+DDA的系列污染试验,并在25 ℃下进行ETA+DDA的循环污染试验。结果表明:阳离子交换树脂更容易受到DDA污染,随着DDA浓度的增加,树脂污染加重,工作交换容量下降。ETA的加入会加重树脂污染,ETA+DDA对树脂的污染具有协同效应。DDA对树脂的污染主要表现为树脂孔隙堵塞及范德华力吸附共同作用的结果。被DDA污染的树脂再生困难,需要探讨新型复苏工艺。从树脂耐污...

In pressurized water reactors, utilizing dodecylamine (DDA) can reduce the deposition of corrosion significantly in steam generator, and ethanolamine (ETA)+DDA is a promising water condition in secondary circuit, but DDA might contaminate the condensate polishing resin. Three kinds of resins were chosen to carry out series of pollution experiments under different concentrations of DDA/ETA+DDA at 25, 40 and 55 ℃, and circulation pollution and recover experiments were made under ETA+DDA condition at 25 ℃. The experimental results show that the ...