大尺度试验体表面液膜物理特性的综合测量

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Comprehensive Measurement of Physical Properties of Floating Liquid Film on Large Surface in Test Facility

State Nuclear Power Technology Research and Development Centre, Beijing, 100190, China

摘要: 测量对象为CAP1400非能动安全壳冷却系统水分配试验台架,其表面积超过200 m²。在水分配试验的测量系统中采用高精度电容探针的方式来测量试验体表面的液膜的厚度;通过设置多个收集水槽,以收集水槽的液位变化来表征局部区域的表面流量;采用工业电荷耦合元件(CCD)相机,通过拍摄试验体表面的图像,再以机器视觉处理的方式,计算得到大空间中试验体表面的液膜覆盖率。采用以上的方式,可以比较清楚全面地了解试验体表面的液膜的相关分布特性。
- 测量 /
- 电容探针 /
- 机器视觉 /
- 流动液膜
Abstract: The object to be measured is the facility for water distribution experiments for CAP1400 which surface area is more than 200m².The high-accuracy capacitance spacing probes are used to get the thickness of the film.Many tanks are located under the facility to measure the levels of these tanks which show the rate of flow along the surface.CCD（Charge-coupled Device） industrial cameras is used to take image of the surface of the test object,and the video is treated by the especial software of machine vision.The coverage rate is obtained by calculating the whole proportion of wet area and dry area.By these new measurement methods,the law of floating liquid film in large space can be understood.
- Measurement /
- Capacitance probe /
- Machine vision /
- Floating liquid film