盛程^1,2,王韵婷³
SHENG Cheng^1,2, WANG Yunting³

• 1:上海发电设备成套设计研究院有限责任公司，上海 200240
• 2:华北电力大学核热工安全与标准化研究所，北京 102206
• 3:上海电气燃气轮机有限公司，上海 200240

摘要(Abstract)：

临界热流密度对反应堆安全起着至关重要的作用，通过对温升速率进行观察可以有效判断临界热流密度的发生。应用Haar小波函数对自然循环条件下窄通道内的临界热流密度实验温升数据进行分析，通过对温度信号的分解及重构，认为小波分析的结论与通过试验获得的温升数据结果符合性较好，能够准确判断临界热流密度的发生位置和时刻。
Critical heat flux(CHF) plays an important role in reactor safety, and observing temperature rising rate can effectively judge the occurrence of CHF. Haar Wavelet function is used to analyze the temperature rise curve data of CHF experiment in natural circulation narrow channel. Through the decomposition and reconstruction of the temperature signal, it is found that the conclusion of wavelet analysis is in good agreement with the analysis results of temperature rise data obtained by the experiment, and the location and time of CHF can be accurately judged.

关键词(KeyWords)： 自然循环;临界热流密度;小波分析;窄通道
natural circulation;critical heat flux;wavelet analysis;narrow channel

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目“窄矩形通道内自然循环ONB点发生机理研究”（50976033）

作者(Author): 盛程^1,2,王韵婷³
SHENG Cheng^1,2, WANG Yunting³

DOI: 10.19929/j.cnki.nmgdljs.2022.0018

参考文献(References)：

• [1] 赵剑波, 王蕾."十四五" 构建以新能源为主体的新型电力系统[J].中国能源, 2021, 43(5):17-21. ZHAO Jianbo, WANG Lei. Research on the new power system during the 14th five-year plan[J]. Energy of China, 2021, 43(5):17-21.
  [2] 陆道纲, 靳愚, 王汉, 等.自然循环流量对倾斜向下弧形加热表面CHF值影响的实验研究[J].核科学与工程, 2021, 41(2):386-394. LU Daogang, JIN Yu, WANG Han, et al. Experimental study on the effect of natural circulation flow on the CHF value of inclined downward curved heating surface[J]. Nuclear Science and Engineering, 2021, 41(2):386-394.
  [3] 王亚成.并联小通道流动沸腾干涸特性研究[D].吉林:东北电力大学, 2020.
  [4] 蒋波涛, 黄新波.基于高斯过程回归的临界热流密度预测[J].核动力工程, 2019, 40(5):46-50. JIANG Botao, HUANG Xinbo. Prediction of critical heat flux based on gaussian process regression[J]. Nu-clear Power Engineering, 2019, 40(5):46-50.
  [5] 马栋梁, 周涛, 黄彦平.基于机器学习的超临界水传热恶化判定研究[J].核动力工程, 2021, 42(4):91-95. MA Dongliang, ZHOU Tao, HUANG Yanping. Research on judgment of supercritical water heat transfer deterioration based on machine learning[J]. Nuclear Power Engineering, 2021, 42(4):91-95.
  [6] 马浩, 马有福, 吕俊复.垂直上升管内盐水流动沸腾传热恶化数值研究[J].锅炉技术, 2021, 52(4):1-7. MA Hao, MA Youfu, LYU Junfu. Numerical simulation research on heat transfer crisis of upward flow boiling in a vertical tube with salty water[J]. Boiler Technology, 2021, 52(4):1-7.
  [7] 尚智, 贾斗南, 杨瑞昌.信号奇异性的边缘检测小波对CHF和最小膜态沸腾起始点的检测[J].化工学报, 2003, 54(6):749-753. SHANG Zhi, JIA Dounan, YANG Ruichang. Detection of CHF and start point of minimum film boiling with wavelet for boundary detection of signal singularity[J]. CIESC Journal, 2003, 54(6):749-753.
  [8] 张曼, 王明泉, 杨顺民, 等.基于小波分析的锂电池空耦超声信号降噪研究[J].测试技术学报, 2020, 34(4):304-310. ZHANG Man, WANG Mingquan, YANG Shunmin, et al. Research on noise reduction of air-coupled ultrasonic signal of lithium battery based on wavelet analysis[J]. Journal of Test and Measurement Technology, 2020, 34(4):304-310.
  [9] 豆震泽.基于小波分析的模拟电路故障诊断探讨[J].中国新通信, 2020, 22(14):157-158. DOU Zhenze. Discussion on analog circuit fault diagnosis based on wavelet analysis[J]. China New Telecom-munications, 2020, 22(14):157-158.
  [10] 高迎东, 王宏力, 由四海, 等.基于小波基函数选取与改进阈值函数的脉冲星信号去噪算法研究[J].电光与控制, 2020, 27(4):15-19. GAO Yingdong, WANG Hongli, YOU Sihai, et al. A pulsar signal denoising algorithm based on wavelet basis function selection and improved threshold function[J]. Electronics Optics & Control, 2020, 27(4):15-19.
  [11] 杨福生.小波变换的工程分析与应用[M].北京:科学出版社, 2000.