核电厂辅助蒸汽系统汽源优化分析  

Analysis On Steam Source Optimization of Auxiliary Steam System for Nuclear Power Unit

作　　者：苗壮 李明 张武武 罗俊杰 MIAO Zhuang;LI Ming;ZHANG Wu-wu;LUO Jun-jie(Shandong Nuclear Power Company Ltd.,Yantai 265116,China;China Research Institute of Nuclear Operation,Wuhan 610041,China)

机构地区：[1]山东核电有限公司,烟台265116 [2]核动力运行研究所,武汉610041

出　　处：《汽轮机技术》2023年第4期297-300,共4页Turbine Technology

摘　　要：M310核电机组使用蒸汽转换系统提供辅助蒸汽。三代压水堆核电机组选择主蒸汽减压后的蒸汽作为辅助蒸汽系统的汽源,但会造成蒸汽品位的降低。在核能综合利用的大背景下,为了提升机组二回路效率,从高压缸排汽作为辅助蒸汽汽源的角度,进行了经济性、反应堆衰变热影响和运行方式调整的分析,确定高压缸排汽作为辅助蒸汽汽源的经济性和可行性,为后续核电机组效率提升改造或设计提供参考或方案。The auxiliary steam of M310 is provided by steam converter.Generation III nuclear power(APWR)used the decompressed main steam as auxiliary steam.In this way,the efficiency will be decreased.Under the background of comprehensive utilization of nuclear energy,In order to improve the unit efficiency,the exhaust steam of high pressure cylinder as auxiliary steam source is analyzed from the economics.In addition,the influence of reactor decay heat and operation mode adjustment are also added in this paper.The economy and feasibility of the exhaust steam of high pressure cylinder as auxiliary steam source are proved.This paper provides reference and scheme for the follow up efficiency improvement of nuclear power units.

关 键 词：辅助蒸汽 高压缸排汽 主蒸汽 反应堆衰变热 轴封蒸汽 

分 类 号：TM623[电气工程—电力系统及自动化]