原子能科学技术2016，Vol.50Issue(12)：2200-2205,6.DOI:10.7538/yzk.2016.50.12.2200
水滴粒径对旋叶式汽水分离器性能的影响
Effect of Droplet Size on Swirl Vane Separator Performance
杨雪龙 1王永 2冯靖 1王伟 2王先元1
作者信息
- 1. 核动力运行研究所，湖北武汉 430074
- 2. 中核武汉核电运行技术股份有限公司，湖北武汉 430223
- 折叠
摘要
Abstract
The computational fluid dynamics technique was adopted to calculate and ana‐lyze the influence of droplet size on the swirl vane separator performance and internal flow details .The Euler two‐fluid model with the mean particle size method was utilized to calculate the two‐phase flow in the separator ,with the particle size in the range of 0.1‐150 μm .By analyzing the flow field details ,the internal relations were revealed between the particle size and the separation performance .The results show that the pressure loss declines after the first rise with the increase of particle size ,while the sep‐aration efficiency has an “S” type increasing trend .The particle size having impact on the separation efficiency is in the range of 5‐150 μm ,w hile that of the pressure loss is in the range of greater than 5 μm .Compared with the experimental results ,the calculated pressure loss has a relative deviation within 4.8% ,and the appropriate choice of the particle size contributes to a more accurate separation efficiency and outlet humidity , and the calculation method is proved to be reliable .The steam flow distribution ratio and water reflux ratio decrease with the increase of particle size ,while the ratio of the reflux water accounting for the total amount of water is high ,up to 48 % ,and therefore it must be considered in the calculation ,and the peripheral space is proposed to be con‐sidered in the computational domain .关键词
汽水分离器/水滴/多相流/水滴粒径/蒸汽发生器Key words
separator/droplet/multiphase flow/droplet size/steam generator分类
能源科技引用本文复制引用
杨雪龙,王永,冯靖,王伟,王先元..水滴粒径对旋叶式汽水分离器性能的影响[J].原子能科学技术,2016,50(12):2200-2205,6.
