Data acquisition and control system for lead-bismuth loop KYLIN-II-M

Among different heavy liquid metals （HLMs）, lead-bismuth eutectic （LBE） is considered at present as a po- tential candidate for the coolant of new generation fast reactors （critical and subcritical） and for liquid spallation neutron sources and accelerator driven systems （ADS）. A high temperature liquid LBE loop, KYLIN-II-M, has been built to study the characteristics of corrosion and fluidity of LBE at the Institute of Nuclear Energy Safety Technology. However, due to the sensors and execution components of the loop work at high temper- atures and in severely corrosive environments, the reliability and security of the data acquisition and control system （DACS） of KYLIN-II-M face challenges during the loop operation. In order to meet the urgent needs for KYLIN-II-M＇s long-term stable operation, a virtualization and redundancy control system has been developed. The onsite operation result shows that the DACS is stable and reliable. In this paper, the experimental results are described in detail.