富集硼酸在核电厂一回路冷却剂中的应用研究  

Study on Application of Enriched Boric in Primary Coolant of Nuclear Power Plants

作　　者：刘金华[1,2] 温菊花[2] 龚宾[2] 夏晓娇 姜峨[2] 赵永福[2] 周之入[2] 

机构地区：[1]四川大学原子核科学技术研究所,成都610064 [2]中国核动力研究设计院,成都610041

出　　处：《核动力工程》2015年第3期110-113,共4页Nuclear Power Engineering

基　　金：国家重大科技专项经费资助(2011ZX06004-017)

摘　　要：随着压水堆核电厂逐渐向长周期燃料循环转变,堆芯功率密度不断提高,燃耗不断加深,一回路冷却剂水化学控制也变得更为复杂和困难。对核电厂一回路富集硼水化学进行计算分析,结果表明富集硼酸的使用,可降低冷却剂硼浓度,提高p H值;10B富集度在40%以上的富集硼酸能维持堆芯运行于p H值7.2~7.4。Nuclear power plants gradually adopt the long-term fuel cycle, the power density of the reactors is increasing and the level of burnup is higher. It is more complex and difficult to control the primary coolant chemistry. The water chemistry of enriched boric acid in primary coolant was calculated. Results show that the use of EBA for 40% enrichment can reduce the initial concentration of boron and improve the pH value of primary coolant, enabling the core of reactor to operate at pH300℃ 7.2 to 7.4.

关 键 词：反应堆冷却剂 富集硼酸 硼同位素 一回路水化学 腐蚀 协调控制 

分 类 号：TL343[核科学技术—核技术及应用]