A study on gas flow in spiral inlet cyclone separator

被引：0

作者：

Xu, Wei-Wei ^{[1
]}

Jin, You-Hai ^{[2
]}

Wang, Jian-Jun ^{[2
]}

Wang, Le-Qin ^{[1
]}

机构：

[1] Institute of Chemical Machinery, Zhejiang University, Hangzhou 310027, China

[2] Department of Mechanical and Electronic Engineering, China University of Petroleum, Dongying 257061, China

来源：

Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | 2010年 / 31卷 / SUPPL.期

关键词：

Computational fluid dynamics - Reynolds number - Laminar flow - Flow fields - Flow of gases - Gases;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this study, computational simulation and experimental measurement is used to predict and evaluate the flow field inside two types of cyclones with tangential inlet and spiral inlet, respectively. The simulation results, based on the Reynolds stress model, are in good agreement with the measured results probed by the five orifice pilot tube in both cyclone separators. Comparisons of gas flows features in the annular space, the separation space in both types of cyclone separators are made. The data show that gas flow filed is asymmetric in both the tangential inlet and spiral inlet separators, but the asymmetry in the tangential inlet separator is worse. The results show that the tangential velocity in cyclone profiles has a typical Rankine-voetex structure in both types of cyclone separators, but the tangential velocity has a greater magnitude in the spiral inlet separator than in the tangential separator. The laminar flow in the upper annular space of the spiral inlet separator is smaller than that in the tangential inlet separator; the thickness of laminar in the upper space of spiral inlet separator and the tangential inlet separator is 4 mm and 10 mm respectively. The tangential velocity in vortex finder of spiral inlet separator is bigger, which results in high pressure-drop.

引用

页码：213 / 216