基于丝网传感器的5×5棒束通道空泡分布测量研究

王颖龙; 谢浩; 熊进标; 杨宜昂; 程旭

doi:10.13832/j.jnpe.2022.01.0084

基于丝网传感器的5×5棒束通道空泡分布测量研究

doi: 10.13832/j.jnpe.2022.01.0084

上海交通大学核科学与工程学院，上海，200240

基金项目: 国家自然科学基金面上项目（52076132）

详细信息

作者简介:
王颖龙（1995—），男，硕士研究生，现主要从事两相测量方面的研究，E-mail: Eilon22@qq.com

通讯作者:
熊进标，E-mail: xiongjinbiao@sjtu.edu.cn

中图分类号: TL334
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- 被引次数: 0
出版历程
- 收稿日期: 2020-11-30
- 修回日期: 2021-01-26
- 刊出日期: 2022-02-01

Research on Void Distribution Measurement of 5×5 Rod Bundle Channel Based on Wire Mesh Sensor

School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China

摘要

摘要: 为研究压水反应堆燃料组件棒束通道内的两相分布规律，设计并制造了适用于棒束通道的丝网传感器模块，开展了5×5棒束通道内空气-水泡状流的空泡分布测量实验，分析了棒束通道内空泡份额的分布规律及气泡尺寸对空泡分布的影响。实验结果表明，发生横升力方向反转的小气泡在壁面附近聚集、大尺寸气泡则聚集在子通道中心；常温常压下发生横升力方向反转的临界气泡直径在4~6 mm之间，证明了横升力模型在棒束通道中的适用性。
- 棒束通道 /
- 丝网传感器 /
- 空泡分布 /
- 升力模型
Abstract: In order to study the two-phase distribution in the rod bundle channel, a wire mesh sensor module suitable for the rod bundle channel was designed and fabricated, and the experiment of measuring the void distribution of air-bubble flow in a 5×5 rod bundle channel was carried out. The distribution law of void fraction in rod bundle channel and the effect of bubble size on void distribution are analyzed. The experimental results show that the small bubbles with reversal of transverse lift direction gather near the wall, and the large bubbles gather in the center of the subchannel; The critical bubble diameter of transverse lift direction reversal at room temperature and pressure is between 4~6 mm, which proves the applicability of transverse lift model in rod bundle channel.
- Rod bundle channel /
- Wire mesh sensor /
- Void distribution /
- Lift force model

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图 1 实验回路

Figure 1. Experiment Loop

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图 2 棒束试验段测量截面

Figure 2. Measuring Cross-section of Rod Bundle Test Section

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图 3 丝网传感器

Figure 3. Wire Mesh Sensor

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图 4 传感器连接体

Figure 4. Sensor Connector

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图 5 气泡发生器

Figure 5. Bubble Generator

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图 6 时均空泡份额分布

Figure 6. Time-averaged Void Fraction Distribution

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图 7 测量截面划分示意图

Figure 7. Schematic Diagram of Division of Measuring Cross-section

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图 8 气流量重构示意图

Figure 8. Schematic Diagram of Reconstruction of Air Flow

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图 9 气泡尺寸分布和空泡份额分布曲线

Figure 9. Bubble Size Distribution and Void Fraction Distribution Curve

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图 10 分群后的空泡份额分布

Figure 10. Void Fraction Distribution after Grouping

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图 11 分群后的空泡分布曲线

Figure 11. Void Fraction Distribution Curve After Grouping

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表 1 时均截面空泡份额

Table 1. Time-averaged Cross-section Void Fraction

J_G/(m·s⁻¹) 空泡份额/%
J_S=0.531 m/s J_S=0.884 m/s J_S=1.238 m/s

0.008 0.48 0.47 0.44
0.020 1.08 1.05 1.01
0.039 1.92 1.89 1.89

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