“华龙一号”加氢钝化工艺实施期间一回路水化学控制

摘要/Abstract

摘要： 简述了某“华龙一号”反应堆为满足热态功能试验(HFT)期间一回路加氢钝化工艺实施的水化学要求而在化学平台、热停平台、一回路升温与降温等阶段所采取的水质控制方法,并对水化学控制的实施结果进行了分析。控制结果显示,该机组加氢钝化实施过程各水质指标均被控制在预期范围。

关键词: 华龙一号, 加氢钝化, 水化学控制

Abstract: In order to meet the hydrochemical control requirements of primary circuit hydrogenation passivation process during HFT, the water quality control methods adopted in chemical platform, thermal shutdown platform and primary heating and cooling stages of HPR1000 unit are briefly described, and the implementation results are analyzed. The control results show that the water quality indexes of the HPR1000 unit are controlled within the expected range during the implementation of hydrogenation passivation.

Key words: HPR1000, hydrogenation passivation, hydrochemical control

中图分类号:

TL75+2

叶伟, 闵春, 邓毅, 郑德超, 刘晓军, 赵红杰, 马来山. “华龙一号”加氢钝化工艺实施期间一回路水化学控制[J]. 辐射防护, 2024, 44(5): 510-517.

YE Wei, MIN Chun, DENG Yi, ZHENG Dechao, LIU Xiaojun, ZHAO Hongjie, MA Laishan. Hydrochemical control of primary circuit during the implementation of hydrogenation passivation process for HPR1000[J]. RADIATION PROTECTION, 2024, 44(5): 510-517.

参考文献

[1] 汲大朋, 张烨亮. 压水堆核电厂一回路首次钝化工艺研究[J]. 核动力工程, 2020, 41(2): 84-88.
JI Dapeng, ZHANG Yeliang. Study on initial passivation process of primary loop of PWR nuclear power plants[J]. Nuclear Power Engineering, 2020, 41(2): 84-88.
[2] 于淼, 顾钰, 曾晓敏, 等. 核电厂一回路钝化研究[J]. 核动力工程, 2023, 44(5): 163-168.
[3] Lopez H F. Oxidation products in inconel alloys 600 and 690 under hydrogenated steam environments and their role in stress corrosion cracking[J]. MRS Online Proceedings Library, 2011, 1276(1): 1-9.
[4] Betova I, Bojinov M, Saario T. Start-up and shut-down water chemistries in pressurized water reactors: VTT-R-00699-12[R]. Finland: VTT Technical Research Centre, 2012: 81.
[5] 姚远, 乔利杰, 孙冬柏, 等. 氢对不锈钢钝化膜纳米力学性能的影响[J]. 北京科技大学学报, 2003, 25(6): 537-541.
YAO Yuan, QIAO Lijie, SUN Dongbo, et al. Effect of hydrogen on the nanomechanical properties of passive films formed on stainless steel[J]. Journal of University of Science and Technology Beijing, 2003, 25(6): 537-541.
[6] Garbett K, Cubitt M, Lancaster G A, et al. Corrosion product, radiation field and personnel dose development at the Sizewell B[C]//International Seminar on Primary and Secondary Side Water Chemistry of Nuclear Power Plants. Budapest: U.S. Department of Energy, 2005: 652.
[7] 王柱, 刘子涛, 葛智伟, 等. EPR机组热试期间一回路水化学控制[C]//中国核学会2019年学术年会论文集第3册(核能动力分卷). 北京:中国原子能出版社, 2019: 360-367.
[8] 国家能源局. 核电厂一回路钝化技术导则: NB/T 20535—2018[S]. 北京: 原子能出版社, 2018.
[9] Arancha T, Nathalie E, Durel M, et al. Flamanville 3-EPR commissioning: Chemistry and radiochemistry roles and interfaces[R].Proceedings of the International Conference Nuclear Plant Chemistry, Brighton, 2016.
[10] WANG Z, GE Z W, LIU Z T. Water chemistry management for the primary circuit of the first EPR unit during hot functional testing[J]. The Journal of All Power Plant Chemistry Areas, 2020, 22(1): 20-29.
[11] 彭青娇, 张志明, 王俭求, 等. 溶解氢对316 L不锈钢在模拟压水堆一回路水中氧化行为的影响[J]. 中国腐蚀与防护学报, 2012, 32(3): 217-222.
PENG Qingjiao, ZHANG Zhiming, WANG Jianqiu, et al. Influence of dissolved hydrogen on oxidation of stainless steel 316 L in simulated PWR primary water[J]. Journal of Chinese Society for Corrosion and Protection, 2012, 32(3): 217-222.
[12] 程伟, 金成毅, 汲大朋, 等. 压水堆核电厂一回路水化学条件下304 L不锈钢表面钝化研究[J]. 核动力工程, 2023, 44(6): 254-259.
CHENG Wei, JIN Chengyi, JI Dapeng. et al. Research of oxide films grown on 304 L stainless steel surface in simulated pressurized water reactor primary water environment[J]. Nuclear Power Engineering, 2023, 44(6), 254-259.
[13] 高惠斌, 张乐福, 方军. 停堆氧化运行中主回路活化腐蚀产物的迁移与控制[J]. 核动力工程, 2009, 30(2): 78-81.
GAO Huibin, ZHANG Lefu, FANG Jun. Migration and control of activated corrosion products in primary coolant loop during reactor shutdown oxygenation operation[J]. Nuclear Power Engineering, 2009, 30(2): 78-81.
[14] 方岚, 徐春艳, 刘新华, 等. 压水堆核电站一回路活化腐蚀产物源项控制措施探讨[J]. 辐射防护, 2012, 32(1): 8-14+20.
FANG Lan, XU Chunyan, LIU Xinhua, et al. Source term control measures for activation/corrosion products in PWR primary system[J]. Radiation Protection, 2012, 32(1): 8-14+20.
[15] 王柱, 周佳, 楚建伟, 等. 某三代压水堆机组停堆水化学控制工艺改进与应用[J]. 核动力工程, 2022, 43(3): 190-195.
WANG Zhu, ZHOU Jia, CHU Jianwei, et al. Optimization and application of shutdown chemistry during outage of one 3rd generation PWR unit[J]. Nuclear Power Engineering, 2022, 43(3): 190-195.
[16] 张勇. 核电站氧化运行及效果分析[J]. 辐射防护, 2003, 23(1): 55-59.
ZHANG Yong. Analysis of the oxygenation operation effects in Qinshan nuclear power plant[J]. Radiation Protection, 2003, 23(1): 55-59.
[17] 曲冰, 赵延鹏, 谢文明, 等. 核电站一回路管道中腐蚀产物在不同过氧化氢工况下沉积特性的实验研究[J]. 节能技术, 2022, 40(5): 463-469.
QU Bing, ZHAO Yanpeng, XIE Wenming, et al. Experimental study on the deposition characteristics of corrosion products in the primary pipeline of nuclear power plants with different hydrogen peroxide conditions[J]. Energy Conservation Technology, 2022, 40(5): 463-469.
[18] 孙超, 魏君安, 王鸡换, 等. 核电厂大修氧化运行分析与改进[J]. 科技视界, 2018(4): 5-8.
SUN Chao, WEI Junan, WANG Jihuan, et al. Analysis and improvement of Qinshan nuclear power plant overhaul oxidation operation[J]. Science & Technology Vision, 2018(4): 5-8.
[19] 韩啸, 巫小明. 核电厂停堆过程中活化腐蚀产物的迁移与控制[J]. 设备管理与维修, 2020(19): 128-130.
[20] 陆伟. 压水堆核电厂一回路化学除氧分析[J]. 产业与科技论坛, 2020, 19(11): 50-52.
[21] 陈旭, 尹锐佳. 三代核电机组一回路钝化加氢工艺问题研究及改进应用[J]. 核科学与工程, 2022, 42(2): 359-364.
CHEN Xu, YIN Ruijia. The study and improvement for the passivation hydrogenation in the primary circuit of generation Ⅲ NPP[J]. Nuclear Science and Engineering, 2022, 42(2): 359-364.