Nuclear Techniques ›› 2015, Vol. 38 ›› Issue (7): 70401-070401.doi: 10.11889/j.0253-3219.2015.hjs.38.070401


Design of nitrate natural circulation loop control system in TMSR

ZHANG Ning1,2 GUO Bing1,2 HAN Lixin1,2 ZHOU Dayong1,2   

  1. 1(Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China) 2(Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, Chinese Academy of Sciences, Shanghai 201800, China)
  • Received:2015-01-20 Revised:2015-04-22 Online:2015-07-10 Published:2015-07-10
  • Contact: Dayong ZHOU

Abstract: Background: Nitrate natural circulation loop (NNCL) is one of experimental platform in thorium-based molten salt reactor (TMSR), which was designed to study the heat transfer behavior and corrosion behavior of direct reactor auxiliary cooling system (DRACS). Purpose: This study aims to implement a distributed control system (DCS) with functionalities of system control, online state monitor and experimental data acquisition in NNCL. Methods: An experimental physics and industrial control system (EPICS) based distributed control system was designed for this project. An optimized support module structure was designed for I/O operation with low-level PLCs to improve the performance of input/output controller (IOC) runtime database, and a PostgreSQL database was employed for data archive by RDB ChannelArchiver. A control system studio (CSS) interface and MATLAB was implemented in operator interface (OPI) computers, for visual operation and experimental data calculation. Results: Testing for online operation and history data acquisition in OPI interface proved that the control system satisfied all requirements of NNCL control and state monitor with long-term effective. Conclusion: The system could provide efficient and reliable routine for online operation and would well support advanced study of DRACS on this NNCL platform.

Key words: NNCL, EPICS, On-line monitoring, DCS