超临界水冷堆CSR1000恒压启动特性研究
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摘要
以中国超临界水堆(CSR1000)为研究对象,参考日本超临界轻水堆恒压启动系统和超临界锅炉机组启动方式,编制了CSR1000超临界水堆恒压启动分析程序。计算结果表明,CSR1000采用恒压启动,高压补水箱质量流量先增大后减小,主给水泵流量先减小后增大;第一流程包壳温度高于第二流程包壳温度,两个流程的包壳最高温度都低于安全限值1 260℃;第一流程、第二流程冷却剂通道和慢化剂通道线功率密度在堆芯功率达到50%后都趋于稳定。CSR1000采用恒压启动方式不仅能够满足超临界水堆机组启动快速灵活,而且还可以高效平稳地达到安全运行要求。
The supercritical water-cooled reactor of China(CSR1000)is studied in this paper. The constant pressure startup analysis program of the supercritical water reactor,which is based on the supercritical boiler startup method and the supercritical light water reactor constant-pressure startup system of Japan,has been developed. The results showed that CSR1000 adopts constant-pressure startup. The mass flow of the high-pressure makeup tank increases at first and then decreases,while that of the main feed pump is on the contrary in the process of constant-pressure startup. The 2 nd maximum cladding surface temperatures(MCST)are higher than the 1 st MCST,and both not exceeding 1 260 ℃. The 1 st and 2 nd linear power rate of both coolant channels and the moderator channel went stable after the power of CSR1000 reaches 50%. The constant pressure startup mode can not only meet the rapid and flexible characteristics,but also achieve the safe operation requirements efficiently and smoothly.
The supercritical water-cooled reactor of China(CSR1000)is studied in this paper. The constant pressure startup analysis program of the supercritical water reactor,which is based on the supercritical boiler startup method and the supercritical light water reactor constant-pressure startup system of Japan,has been developed. The results showed that CSR1000 adopts constant-pressure startup. The mass flow of the high-pressure makeup tank increases at first and then decreases,while that of the main feed pump is on the contrary in the process of constant-pressure startup. The 2 nd maximum cladding surface temperatures(MCST)are higher than the 1 st MCST,and both not exceeding 1 260 ℃. The 1 st and 2 nd linear power rate of both coolant channels and the moderator channel went stable after the power of CSR1000 reaches 50%. The constant pressure startup mode can not only meet the rapid and flexible characteristics,but also achieve the safe operation requirements efficiently and smoothly.
引文
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[2]李翔,李庆,夏榜样,等.中国超临界水冷堆CSR1000总体设计研究[J].核动力工程,2013,34(01):5-8.
[3]Y Oka,S Koshizuka,Y Ishiwatari,et al.Super Light Water Reactors and Super Fast Reactors[M].Springer New York Dordrecht Heidelberg London,2010.
[4]许海,孙继红.600 MW超临界机组启动系统及其控制系统的特点[J].吉林电力,2001,04:13-17+21.
[5]王擎,朴哲龙,李彦龙,等.超临界发电机组的发展及启动特性[J].热电技术,2005(1):4-7.
[6]马昕霞,袁益超,刘聿拯,等.超临界机组启动系统的研究[J].锅炉技术,2008,39(5):1-4.
[7]Pan Wua,Junli Gou,Jianqiang Shan,et al.Preliminary safety evaluation for CSR1000 with passive safety system[J].Annals of Nuclear Energy.2014,65:390-401
[8]Tin Tin YI,Yuki ISHIWATARI,Seiichi KOSHIZUKA et al.Startup Thermal Analysis of a High-Temperature Supercritical-Pressure Light Water Reactor[J].Journal of Nuclear Science and Technology.2014:41(8):790-801.
[9]单建强.压水堆核电厂调试与运行[M].中国电力出版社,北京,2008.
[10]刘亮,周涛,陈杰,等.超临界水堆典型事故分析[J].核动力工程,2016(2):151-155.
[11]刘亮.超临界水堆瞬态及事故研究[D].北京:华北电力大学(北京),2017.
[12]顾军杨,陈连发.先进沸水堆核电厂[M].北京:中国电力出版社,2007.
[13]Ishiwatari Y,Oka Y,Koshizuka S,et al.Safety of Super LWR,(Ⅱ)Safety Analysis at Supercritical Pressure[J].Journal of Nuclear Science&Technology,2005,42(11):935-948.