|
|
|
| Research on alarm threshold of damage monitoring channel for fuel element in PWR nuclear power plant |
| JIA Jingxuan1, WU Rongjun1, WANG Yiyuan1, LI Wenzhi2, NIE Lingxiao1, XU Jingjing1 |
1. Wuhan Secondary Institute of Ships, Wuhan 4300642 China;
2. Dalian Institute of Measurement and Control Technology |
|
|
|
|
Abstract Objective The calculation method of the fuel element cladding damage monitoring channel measurement value in PWR (Rressurized Water Rector) nuclear power plant under different operating conditions is established.The dose rate of the channel was calculated under the condition of three primary coolant concentrations. Guide the setting of alarm threshold for the monitoring channel.Methods This article analyzed the radioactive nuclides in the primary coolant under different operating conditions of PWR nuclear power plant.According to the actual design of the fuel element damage monitoring channel, the calculation model is established by MCAM modeling software. The model can be used for MCNP software calculation. The measured values of the fuel element damage monitoring channel are calculated in three different operating conditions.Results Under three operating conditions, the calculated value of the monitoring channel are 8.0×10-6Gy/h、5.3×10-4Gy/h、1.6×10-3Gy/h.Conclusion It is suggested that 5.3×10-4Gy/h and 1.6×10-3Gy/h are set to two alarm thresholds. The setting of the alarm threshold is equivalent to the operating threshold of the active power station.
|
|
Received: 22 January 2018
|
|
|
|
|
|
[1] 朱继洲,单建强,张斌.压水堆核电厂的运行[M].北京:原子能出版社,2008:1-41.
[2] 凌球,郭兰英,李冬馀.核电站辐射测量技术[M].北京:原子能出版社,2001:94-168.
[3] 孙力平,孙鸣.核电站保护屏障的监护神-核电站国辐射监测系统(Rius)概述[J].核电安全, 2008,1(3):252-257.
[4] 贾靖轩,袁育龙,孙国庆,等.核电站辐射监测系统报警阈值设置方法[J].舰船科学技术,2011,33(8):134-137.
[5] 廖红彪.辐射监测系统KRT培训教材[M].广东:岭澳核电站保健物理处, 2001:3-16.
[6] 岭东核电有限公司.岭澳核电站三、四号机组初步安全分析报告[M].深圳:岭东核电有限公司,2004:1895-2147. |
|
|
|
