旋叶汽-水分离器空气-水冷态试验研究

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Experimental Study on A Swirl-vane Steam Separator with Air-Water

1. School of Nuclear Science and Engineering, Shanghai Jiaotong University, Shanghai, 200240, China;
2. Shanghai Nuclear Engineering Research & Design Institute, Shanghai, 200233, China

摘要: 采用可视化的实验方法研究旋叶汽-水分离器的空气-水分离过程和分离性能。试验表明:旋转通道上方形成均匀稳定且厚度适中的液膜有利于气-液两相的分离。水流量较小时,液滴形态的水比例较高,难以分离;而水流量较大时形成液膜较厚,中心空气流通截面变小导致空气夹带水加剧。分离效率的定量测量结果与可视化结果一致。分离效率主要受到水流量的影响,随着水流量的增大逐渐上升,当水流量增大到0.3m³/h后增加趋势逐渐减缓进而呈下降的趋势。
- 旋叶汽-水分离器 /
- 分离效率 /
- 冷态试验
Abstract: Small scale swirl-vane steam separator is experimentally studied by high speed camera,using air-water modeling fluid.The experimental result shows that the thickness of the water film on the inner tube is vital to the separation.The separation efficiency is mainly influenced by the water flow rate.It rises gradually due to the increase of the water film thickness and the reduction of the water droplets with the increasing of water flow rate.The incensement declines when the water flow rate is larger than 0.3m³/h,and furthermore it decreases.The reason is that the water film is distorted to be droplets by the high speed air due to reducing flow area for air.
- Swirl-vane steam separator /
- Separation efficiency /
- Water-air test