摘要
M310技术的吸收奠定了我国目前商用核电站设计的技术基础,随着我国核电技术的发展,引进技术不能完全满足新型核电厂的设计。安全壳空气净化系统用于保证安全壳内安全的工作条件,新堆型核电厂的设计与在运电站相比变化较大,必须重新计算系统的容量,但是对于安全壳内放射性物质的过滤计算,我国尚无相对成熟的计算方法,本文选用行业内不同领域的相关计算方法进行推算分析,以期找到有关系统容量计算的合适方法。结果表明:全面通风、活度平衡计算方法可定性分析本系统容量和运行时间,类比计算只能简单确定系统风量,洁净室计算方法不适用于本系统,气载放射性浓度与时间相关的微分方程还需进一步研究;在参考时间段内,有害物散发量不变的情况下,系统风量与自由容积成比例,在固定风量情况下,净化时间与自由容积成比例。
The absorption of M310 technology has laid the technical foundation for the current commercial nuclear power plant design in China,with the continuous development of nuclear power technology in China,the imported technology no longer meets the design of new nuclear power plants.Containment air cleaning system is used to ensure working conditions in containment.The design of the new type project has a great change in comparison with the power station in operation,The capacity of the system needs to be recalculated,for the calculation of radioactive material filtering in containment,because there is no special formula in china,In this paper,the relevant calculation formulas of different fields in the industry are selected for trial calculation,in order to find a suitable method for calculating the capacity of the system.The results show,the calculation method of comprehensive ventilation and activity balance can qualitatively analyze the system capacity and operation time,analog calculation can only determine the system air volume simply,the calculation method of the clean room is not applicable to this system,the differential equation of time-dependent airborne radioactive concentration needs further study,in the reference period,if there is no change in the amount of noxious substance emission,the system air volume is proportional to free volume,in the case of fixed air volume,the purification time is proportion to free volume.
作者
陆松
胡北
赵磊
LU Song;HU Bei;ZHAO Lei(China Nuclear Power Engineering Co.,Ltd.,Beijing,100840,China)
出处
《核科学与工程》
CAS
CSCD
北大核心
2018年第5期804-811,共8页
Nuclear Science and Engineering
关键词
安全壳
空气净化
放射性
Containment
Air cleaning
Radioactivity
