小型压水堆螺旋管直流蒸汽发生器参数不确定性量化研究

Quantitative Research on Parameter Uncertainty of Helical Coil Once-Through Tube Steam Generator on the Small Pressurized Water Reactor

为研究螺旋管直流蒸汽发生器(HCOTSG)参数不确定性对小型压水堆运行的影响,在建立堆芯功率控制系统、蒸汽发生器给水控制系统及稳压器压力和液位控制系统的基础上,开发小型压水堆HCOTSG参数不确定性量化平台。以螺旋管内外径不确定性量化为例,开展平台的应用研究。结果表明,开发的HCOTSG参数不确定性量化平台可以用于开展螺旋管内外径不确定性量化分析。

To study the influence of parameter uncertainties of helical coil once-through tube steam generator(HCOTSG)on the operation of small pressurized water reactor,based on the establishment of the core power control system,the feed water control system of steam generator and the pressure and water level control system of pressurizer a quantitative platform for parameter uncertainties of HCOTSG on the small pressurized water reactor was developed.Taking the uncertainty quantification of inner and outer diameters of helical pipes as an example,the application research of the platform is carried out.The results show that the developed platform can well quantify the uncertainty of the primary system of small pressurized water reactor.