摘要
AP1000堆型作为典型的第三代核电站,在堆外核测系统的信号侧设计上相比国内典型二代堆M310堆型的设计做了较大改进。本文将针对AP1000核电站核仪表系统(NIS)从探测器到前置放大器之间的部分,分为源量程、中间量程和功率量程具体介绍相对于M310堆型在探测器本体、信号放大器等方面所做的改进,以及这些改进对探测器灵敏度及信号强度的增强原理及效果,并提出对这些改进在机组安装、调试、运行和大修期间对维修策略造成的影响和应对对策。
As a standard 3rd generation plant,AP1000 nuclear power plant has several significant improvements in NIS （Nuclear Instrumentation System） system comparing M310 NPPs which are standard 2nd generation nuclear power plants.This paper will present the improvements between and include detectors and preamplifiers of Source Range,Intermediate Range and Power Range of NIS system,and the principles about how they improve the detector＇s sensitivity and the amplitude,the results these improvements would achieve,and how this improvements will impact on maintenance strategies when the plant is in installation,testing,operating and outage.
出处
《仪器仪表用户》
2014年第5期51-54,共4页
Instrumentation
