Effects of different inlet structures on the flow field of cyclone separators

被引：59

作者：

Gao, Zhuwei ^{[1
,2
,3
]}

Wang, Juan ^{[3
,4
]}

Liu, Zhongxin ^{[1
,2
]}

Wei, Yaodong ^{[3
,4
]}

Wang, Jiangyun ^{[5
]}

Mao, Yu ^{[5
]}

机构：

[1] Hainan Univ, Key Lab Adv Mat Trop Isl Resources, Minist Educ, Haikou 570228, Hainan, Peoples R China

[2] Hainan Univ, Sch Chem Engn & Technol, Haikou 570228, Hainan, Peoples R China

[3] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China

[4] Beijing Key Lab Proc Fluid Filtrat & Separat, Beijing 102249, Peoples R China

[5] China Univ Petr, Sch Machinery & Storage Engn, Beijing 102249, Peoples R China

来源：

POWDER TECHNOLOGY | 2020年 / 372卷

关键词：

Cyclone separator; Inlet structure; Q criterion; Vortex structure; Iso-vortex surface; COMPUTATIONAL FLUID-DYNAMICS; FINE-PARTICLE CLASSIFICATION; TURBULENT SHEAR FLOWS; APEX CONE SHAPE; NUMERICAL-SIMULATION; HIGH-EFFICIENCY; PRESSURE-DROP; ENTROPY PRODUCTION; CFD SIMULATION; GAS;

D O I：

10.1016/j.powtec.2020.06.014

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this reported study, a new Q criterion was proposed to analyze the vortex in three cyclones that had various inlet structures. The Reynolds stress model (RSM) was used to simulate the gas flow, and the Phase Doppler Particle Analyzer (PDPA) was used to measure the fluid velocity. The results showed that the vortex structure was intuitive according to the new isovortex surface that was obtained using the Q criterion. The isovortex surface was found to be distorted and not distributed around the center axis. With the development of flow, the equivalent diameter of the isovortex surface gradually decreased. The magnitude of the vorticity and the vortex lines of axisymmetrical volute inlet (AVI) structure were more uniform and symmetrical than those found into the single tangential inlet (STI) structure and the single volute inlet (SVI) structure. (C) 2020 Published by Elsevier B.V.

引用

页码：519 / 531

页数：13

共 59 条

[1]

[Anonymous], 2000, Gas Flow Field and Collection Efficiency of Cyclone Separators

[2] A CFD study of the effect of cyclone size on its performance parameters [J].

Azadi, Mehdi ;

Azadi, Mohsen ;

Mohebbi, Ali .

JOURNAL OF HAZARDOUS MATERIALS, 2010, 182 (1-3) :835-841

[3] Experimental research on the dynamics of airflow parameters in a six-channel cyclone-separator [J].

Baltrenas, Pranas ;

Chlebnikovas, Aleksandras .

POWDER TECHNOLOGY, 2015, 283 :328-333

[4] Vortex erosion in a shallow water model of the polar vortex [J].

Beaumont, Robin ;

Kwasniok, Frank ;

Thuburn, John .

DYNAMICS OF ATMOSPHERES AND OCEANS, 2017, 78 :137-151

[5] 3-D computational fluid dynamics for gas and gas-particle flows in a cyclone with different inlet section angles [J].

Bernado, S ;

Mori, M ;

Peres, AP ;

Dionísio, RP .

POWDER TECHNOLOGY, 2006, 162 (03) :190-200

[6]

BOYSAN F, 1982, T I CHEM ENG-LOND, V60, P222

[7] Effect of Vortex Finder Diameter on Flow Field and Collection Efficiency of Cyclone Separators [J].

Brar, L. S. ;

Sharma, R. P. ;

Dwivedi, R. .

PARTICULATE SCIENCE AND TECHNOLOGY, 2015, 33 (01) :34-40

[8] The effect of the cyclone length on the performance of Stairmand high-efficiency cyclone [J].

Brar, Lakhbir Singh ;

Sharma, R. P. ;

Elsayed, Khairy .

POWDER TECHNOLOGY, 2015, 286 :668-677

[9] A CFD study of the effect of cone dimensions on sampling aerocyclones performance and hydrodynamics [J].

Chuah, TG ;

Gimbun, J ;

Choong, TSY .

POWDER TECHNOLOGY, 2006, 162 (02) :126-132

[10] Modeling the gas and particle flow inside cyclone separators [J].

Cortes, Cristobal ;

Gil, Antonia .

PROGRESS IN ENERGY AND COMBUSTION SCIENCE, 2007, 33 (05) :409-452

← 1 2 3 4 5 6 →