秦山第二核电厂升/降负荷时硼化稀释量计算

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Forecast Dilution or Boration Value during Power Changing Process in Qinshan Project Ⅱ

Nuclear Power Qinshan Joint Venture Company Limited, Haiyan, Zhejiang, 314300, China

摘要: 为控制反应堆堆芯轴向功率分布形状和补偿反应性的变化,核电厂在升/降负荷过程中除了需要调节控制棒插入深度,同时还需要调节慢化剂中的硼浓度。为了快速准确地计算升/降负荷过程中的稀释硼化量,本文利用MATLAB程序中的SIMULINK模块,建立了一个反应堆在升/降负荷情况下的硼化稀释计算模型。并与实际生产中的稀释硼化数据进行了比对,采用所建立模型的预测结果与实测数据偏差较小,最大相对误差为5.21%。
- 核电厂 /
- 硼化 /
- 稀释 /
- 硼浓度
Abstract: During the power changing process in the nuclear power plant,in order to control the power distribution along the axial direction and to compensate the dynamic reactivity,the boron concentration has to be adjusted,besides the adjustment of the control rods.This paper established a dilution and boration model by using SIMULINK to forecast the speed and the amount of dilution or boronation during power changing process.It also compared the forecast value with the actual value in Qinshan phase II and maximum relative error is percent 5.2.
- Nuclear power plant /
- Boronation /
- Dilution /
- Boron concentration