中子温度测量组件使用寿命及更换策略探讨

Research and Development of Service Life and Replacement Strategy for Neutron-temperature Measurement Channel

田湾核电站堆芯核测系统(ICIS)在国内核电站中首次使用堆内线功率密度和偏离泡核沸腾比(DNBR)参与反应堆停堆保护。作为ICIS的核心探测器,中子温度测量组件(NTMC)的性能对机组的运行可靠性起着至关重要的作用。本研究结合田湾核电站的相关经验,对NTMC的使用寿命及更换策略进行探讨。

The ICIS at Tianwan Nuclear Power Station is the only first in China to successfully realize reactor protection functions by linear power density and DNBR. As the kernel detectors of ICIS, NTMC plays an extremely important role. And the performance of the detector is very important to the system＇s reliability. Based on the experience of TNPS, this study gives an research and development of the service life and replacement strategy for the detector.