Open AccessResearch on Nuclear Post-accident Liquid Level Detection Signal Deviation in Nuclear Power Plant Reactor Building
Author(s) -
Jian Fu,
Jianjun Jiang,
Yan Meng,
Guo Chen,
Lei Tang,
Yang Han
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2005/1/012068
Subject(s) - nuclear power plant , containment (computer programming) , coolant , nuclear engineering , nuclear power , environmental science , loss of coolant accident , calibration , range (aeronautics) , metre , computer science , reliability engineering , automotive engineering , engineering , mechanical engineering , nuclear physics , statistics , physics , mathematics , astronomy , programming language , aerospace engineering
The level meter in the containment of nuclear power plant adopts the principle of static pressure measurement, and the pressure guiding medium is silicon oil, which is used to continuously measure the level of circulating coolant in the containment under the nuclear accident status and post-accident, aimed at the problem of serious deviations in measurement results caused by large changes in the density and volume of silicone oil affected by temperature changes, a detailed analysis of the root cause of the problem occurred, and the serious consequences that may arise will be described, proposed three solutions, analysed and demonstrated the feasibility of the three options and whether they meet the requirements of operating personnel to monitor the circulating cooling liquid level under the nuclear accident status and post-accident, after comprehensive analysis and comparison, the solution was finally determined. The results show that, according to the requirements of the measurement environment temperature range, selecting 85 degrees as the environment temperature for instrument calibration can minimize the measurement error, which is beneficial for the operators to monitor the circulating coolant level in the containment under the nuclear accident status and post-accident, meet the application requirements.