红沿河核电站凝结水精处理系统的启动与运行

doi:10.11930/j.issn.1004-9649.2017.04.123.07

中国电力 ›› 2017, Vol. 50 ›› Issue (4): 123-129.DOI: 10.11930/j.issn.1004-9649.2017.04.123.07

红沿河核电站凝结水精处理系统的启动与运行

周广吉¹, 徐岩^{1, 2}, 张兰河³

1. 辽宁东科电力有限公司,辽宁沈阳 110006；
2. 辽宁电力科学研究院,辽宁沈阳 110006；
3. 东北电力大学化学工程学院,吉林吉林 132012

收稿日期:2017-01-14 出版日期:2017-04-20 发布日期:2017-04-13
作者简介:周广吉（1987-）,男,吉林农安人,助理工程师,从事电厂水处理技术研究。E-mail: zhouguangji@126.com

The Starting up and Operation of Condensate Polishing Treatment System for Hongyanhe Nuclear Power Plant

ZHOU Guangji¹, XU Yan^{1, 2}, ZHANG Lanhe³

1. Liaoning Dongke Electric Power Co., Ltd., Shenyang 110006, China;
2. Liaoning Electric Power Science Research Institute, Shenyang 110006, China;
3. School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China

Received:2017-01-14 Online:2017-04-20 Published:2017-04-13

摘要/Abstract

摘要： 凝结水精处理系统（ATE）及其良好运行状态对核电站安全运行至关重要。以红沿河核电站3、4号机组ATE系统为例,对比机组首次启动和正常启动2种工况下ATE出水水质和制水量;介绍混床树脂完全分离的方法,给出树脂再生的重要控制点;对调试期间所遇问题进行分析,给出防范措施。经调试,红沿河核电站3、4号机组ATE运行良好,出水氢电导率、Na⁺质量浓度和SiO₂质量浓度分别为0.08 μS/cm、0.10 μg/L和1.91 μg/L,阳床和混床制水量分别为1.2×10⁵ t和4.4×10⁵ t ;树脂分离和再生的效果良好,阴树脂在阳树脂层内的体积分数小于0.08%,阳树脂在阴树脂层内的体积分数小于0.07%;ATE运行期间,蒸汽发生器排污水中Na⁺、Cl^-和SO₄^2-的浓度符合水化学规范。

关键词: 核电站, 凝结水, 精处理系统, 树脂分离, 树脂再生, 调试

Abstract: The condensate polishing treatment system(ATE) and its good operating condition are vital to the operation security of nuclear power plants. Take the ATE system of the Unit 3 and 4 of Hongyanhe Nuclear Power Plant as the study case, the authors compare the ATE effluent concentration and water production under the scenario of the first-time start-up versus the normal start-up, then present the complete separation method using mixed bed resin, and put forward the major control processes of resin regeneration. Problems which occurred during commissioning are also analyzed and corresponding preventative measures are provided. After commissioning, the ATE systems of Hongyanhe Nuclear Power Plant Units 3 and 4 have been maintained in good operating condition. The ATE effluent hydrogen conductivity, Na⁺ mass concentration and SiO₂ mass concentration are respectively 0.08 μs/cm, 0.10 μg/L and 1.91 μg/L. And the water volume of cation bed and mixed bed are 1.2×10⁵ tons and 4.4×10⁵ tons respectively. The resin separation and regeneration performance is satisfactory with the volume fraction of the anion resin in the cation resin layer less than 0.08% and the volume fraction of the cationic resin in the anion resin layer less than 0.07%. During the operation process of ATE system, the concentrations of Na⁺, Cl^- and SO₄^2- in the steam generator sewage water have all met the requirements in the water chemistry specifications.

Key words: nuclear power plant, condensate, polishing treatment, resin separating, resin regeneration, commissioning

中图分类号:

TM623.7

周广吉, 徐岩, 张兰河. 红沿河核电站凝结水精处理系统的启动与运行[J]. 中国电力, 2017, 50(4): 123-129.

ZHOU Guangji, XU Yan, ZHANG Lanhe. The Starting up and Operation of Condensate Polishing Treatment System for Hongyanhe Nuclear Power Plant[J]. Electric Power, 2017, 50(4): 123-129.

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红沿河核电站凝结水精处理系统的启动与运行

The Starting up and Operation of Condensate Polishing Treatment System for Hongyanhe Nuclear Power Plant

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