华龙一号反应堆本体屏蔽设计
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摘要
华龙一号(HPR1000)在设计过程中,为了满足通风和安全要求,在反应堆周围增设了贯穿件,另外,为了辐射防护优化的需求,相对于二代核电厂对部分位置辐射分区进行了更为严栺的调整。为应对上述改进,HPR1000反应堆本体屏蔽设计引入了先进屏蔽计算方法,开展了堆腔漏束和深穿透屏蔽计算分析,提出了先进屏蔽结构设计方案。通过采取针对性的屏蔽设计,HPR1000反应堆本体屏蔽各项指标均达到了工程设计要求,能够保护工作人员的安全健康和仪器设备的正常工作。
In order to satisfy the ventilation and safety requirements during the design of HPR1000, a lot of penetration assemblies were added near the reactor cavity, and for the need of radiation protection optimization, the radiation zoning of some area was much more rigid than that in the second generation nuclear power plants. Therefore, the advanced calculation method for air radiation was used in the calculation of the reactor cavity streaming and deep penetration problem. Some new radiation protection structures were added in the primary shield to meet the special needs of HPR1000. Through the effective shield design, the primary shield achieved all the design target of HPR1000, which can protect the health of the working staff and the normal operation of the equipment.
In order to satisfy the ventilation and safety requirements during the design of HPR1000, a lot of penetration assemblies were added near the reactor cavity, and for the need of radiation protection optimization, the radiation zoning of some area was much more rigid than that in the second generation nuclear power plants. Therefore, the advanced calculation method for air radiation was used in the calculation of the reactor cavity streaming and deep penetration problem. Some new radiation protection structures were added in the primary shield to meet the special needs of HPR1000. Through the effective shield design, the primary shield achieved all the design target of HPR1000, which can protect the health of the working staff and the normal operation of the equipment.
引文
[1]邢继.“华龙一号”:能动与非能动相结合的先进压水堆核电厂[M].北京:原子能出版社,2016.
[2]刘昌文,李庆,李兰,等.“华龙一号”反应堆及一回路系统研发与设计[J].中国核电, 2017, 4:442-447.
[3]叶文川,何忠良.反照蒙特卡罗方法在堆腔辐射漏束计算中的应用[J].核动力工程, 1981, 2(5):55-58.
[4]何忠良,赵纾.反应堆堆腔漏束中子辐射场计算程序系统[J].核动力工程,1986, 7(5):21-27.
[5]黎辉,何忠良.压水堆堆腔辐射漏束计算研究[J].核电工程与技术,2007, 1:19-22.
[6]钟兆鹏.用MCNP程序计算水平辐照孔道屏蔽[J].清华大学学报(自然科学版), 2001, 41(12):16-18.
[7]肖锋,应栋川,章春伟,等.离散纵标与蒙特卡罗耦合方法在反应堆屏蔽计算中的应用[J].核动力工程,2014, 35(5):9-12.
[8]郑征,王梦琪,黎辉,等.三维离散纵标蒙特卡罗耦合方法在核电厂堆腔漏束计算中的应用[J].计算物理,2016, 33(5):599-604.
[2]刘昌文,李庆,李兰,等.“华龙一号”反应堆及一回路系统研发与设计[J].中国核电, 2017, 4:442-447.
[3]叶文川,何忠良.反照蒙特卡罗方法在堆腔辐射漏束计算中的应用[J].核动力工程, 1981, 2(5):55-58.
[4]何忠良,赵纾.反应堆堆腔漏束中子辐射场计算程序系统[J].核动力工程,1986, 7(5):21-27.
[5]黎辉,何忠良.压水堆堆腔辐射漏束计算研究[J].核电工程与技术,2007, 1:19-22.
[6]钟兆鹏.用MCNP程序计算水平辐照孔道屏蔽[J].清华大学学报(自然科学版), 2001, 41(12):16-18.
[7]肖锋,应栋川,章春伟,等.离散纵标与蒙特卡罗耦合方法在反应堆屏蔽计算中的应用[J].核动力工程,2014, 35(5):9-12.
[8]郑征,王梦琪,黎辉,等.三维离散纵标蒙特卡罗耦合方法在核电厂堆腔漏束计算中的应用[J].计算物理,2016, 33(5):599-604.