秦山核电厂320MWe机组汽轮发电机组增容改造的堆机电匹配研究  

Study on Reactor-Mechanical-Electricity for Capacity Expansion and Retrofitting of 320MWe Steam Turbine Generator Unit in Qinshan Nuclear Power Plant

作　　者：李儒鹏 叶成 齐涟 都立国 黄家运 Li Rupeng;Ye Cheng;Qi Lian;Du Liguo;Huang Jiayun(East China Electric Power Design Institute of China Power Engineering Consulting Group,Shanghai,200063,China;Shanghai Nuclear Engineering Research&Design Institute Co.LTD,Shanghai,200233,200233,China;CNNP Nuclear Power Operations Management Co.,Ltd.,Haiyan,Zhejiang,314300,China)

机构地区：[1]中国电力工程顾问集团华东电力设计院有限公司,上海200063 [2]上海核工程研究设计院有限公司,上海200233 [3]中核核电运行管理有限公司,浙江海盐314300

出　　处：《核动力工程》2022年第S01期75-79,共5页Nuclear Power Engineering

摘　　要：在初步分析秦山核电厂320 MWe机组堆机电匹配的条件、传统方法和特点基础上,应用当前先进和高效的热工水力计算、管道阻力计算和热平衡计算软件,以机组增容改造的要求功率为目标,在确保核岛堆功率不超过加强工况功率的前提下,根据蒸汽发生器(SG)出口主蒸汽的不同压力、不同流量,按照一定的步长,同时考虑不同的给水温度、合理的主蒸汽管道阻力、优化的冷端参数,结合当前汽轮发电机组的设计、制造先进技术,进行热工水力和热平衡迭代计算,形成了优化的汽轮机进口主蒸汽参数及机组发电功率,在满足实现功率目标的同时,机组效率也得到一定提升。机组增容改造后,堆机电的参数及性能能够得到更好地匹配,机组的运行也更为安全、稳定和经济。On the basis of preliminary analysis on the conditions,traditional methods and characteristics of the reactor-mechanical-electricity matching of 320 MWe unit in Qinshan Nuclear Power Plant,with the application of the current advanced and efficient thermal hydraulic calculation,pipe resistance calculation and heat balance calculation software,taking the required power of the unit capacity expansion and retrofitting as the goal,on the premise of ensuring that the nuclear island reactor power does not exceed the enhanced working condition power,for different pressures and flows of main steam at the outlet of steam generator(SG),according to a certain step length,and considering different feed water temperature,reasonable main steam pipe resistance,optimized cold end parameters,combined with the current advanced design and manufacturing technology of steam turbine generator unit,the thermal hydraulic calculation and thermal balance iterative calculation have been carried out to form the optimized inlet main steam parameters of steam turbine and generating power of unit.While meeting the power target,the efficiency of the unit has also been improved.After the unit capacity expansion and retrofitting,the parameters and performance of the reactor-mechanical-electricity equipment can be better matched,and the operation of the unit is more safe,stable and economical.

关 键 词：核电厂(NPP) 压水堆(PWR) 核岛(NI) 常规岛(CI) 汽轮发电机组 蒸汽发生器(SG) 加强工况 

分 类 号：TL334[核科学技术—核技术及应用]