The numerical simulation research on structure optimizing of two-stage cyclone moisture separator

被引：0
|
作者：
Liu Y. [1 ,2 ]
Yang X. [2 ]
Ke B. [1 ]
Wang X. [1 ,2 ]
Tian R. [1 ]
机构：
[1] Power and Nuclear Engineering College, Harbin Engineering University, Harbin
[2] Research Institute of Nuclear Power Operation, Wuhan
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2018年 / 39卷 / 08期
关键词：
Cyclone separator; Moisture; Numerical simulation; Separation characteristics; Steam generator; Structural optimization;
D O I：
10.11990/jheu.201705099
中图分类号：
学科分类号：
摘要：
To investigate the influence of the structural parameters of a two-stage cyclone separator on its performance, a two-stage cyclone separator was studied by numerical method. Physical and geometrical models of a two-stage cyclone separator were designed, and numerical analyses were performed using unstructured grid technology, RNG k-ε model, and droplet-phase DPM model. A gas-water separation visualization test bench was built to verify the numerical algorithm. On the basis of verification, the influence of structure parameters-such as the height of the arm, the width of the arm exit, the distance between the top of the arm and the top of the return tube, the diameter of the primary exit, the number and height of secondary guide vanes, the height of the demister, and the secondary exit-on the separation characteristics and resistance characteristics of two-stage cyclones were studied by numerical simulation. Based on the analysis results, specific optimization suggestions were given. After calculation and analysis, the optimized moisture separation model was compared with the initial model. The primary outlet humidity was reduced by 45%, the secondary outlet humidity was reduced by 68%, and the resistance pressure drop was reduced by 48%. © 2018, Editorial Department of Journal of HEU. All right reserved.
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页码：1308 / 1313
页数：5
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