Erosion investigation of liquid-solid flows in narrow rectangular channel

doi:10.16085/j.issn.1000-6613.2022-1289

Abstract

Abstract:

Extensive research on the liquid-solid two-phase erosion in round tubes and jet flow conditions has been conducted, but the liquid-solid two-phase erosion investigation in narrow rectangular channels, such as in plate heat exchanger, is rarely reported. The technique for computational fluid dynamics-discrete phase method-erosion model was developed in the framework of secondary development of Fluent software. The characteristics of liquid-solid two-phase flow and wall erosion in a narrow rectangular channel with cylinder were studied, and the interaction mechanism between the wall and solid particles was explored. Simulation results showed that the presence of cylinder significantly changed the erosion rate of the wall. The erosion rate increased with the increase of liquid-solid velocity and wall roughness, and low inlet flow rates and wall roughness were critical to extend equipment life. The erosion rate increased first and then decreased with the increase of particle size, and reached the maximum value at about 60μm. Shape factor of non-spherical particles had little effect on wall erosion behavior. By means of a dimensionless particle size, the reason that the particles were trapped within the liquid viscous sublayer was explained. Compared with the smooth wall condition, the particles impacted the rough wall with higher energy and high frequency, resulting in faster erosion of the wall. The liquid-solid two-phase impinged on the wall at a lower angle and velocity, and the wall material removal mechanism was mainly micro-cutting.

Key words: liquid-solid, erosion, narrow rectangular channel

摘要：

液固两相磨蚀研究主要集中于圆管弯头和射流工况，板式换热器等狭窄矩形通道内液固两相磨蚀特性的研究鲜见报道。在Fluent软件及其二次开发框架内构建了描述稀疏颗粒液固两相磨蚀特性的CFD-DPM-磨蚀耦合数学模型框架，研究了存在圆柱体阻挡物的狭窄矩形通道内两相流动特性和壁面磨蚀特性，揭示了壁面和固体颗粒的相互作用机制。研究结果表明：阻挡物的存在显著改变了狭窄矩形通道壁面的磨蚀行为；磨蚀速率随液固流速和壁面粗糙度的增加而增加，因此，保证设备较低的入口流速和壁面粗糙度对延长设备寿命至关重要；磨蚀速率随颗粒粒径的增加先增加后降低，在60μm左右时达到极大值；球形度系数对磨蚀行为影响较小。引入量纲为1颗粒尺寸，阐述了液相边界层束缚颗粒运动的作用机制；与光滑壁面工况相比，颗粒以较大能量高频撞击粗糙壁面，导致了壁面磨蚀较快。液固两相以较低的角度和速度撞击壁面，壁面材料去除机理以微切削为主。

关键词: 液固, 磨蚀, 狭窄矩形通道

CLC Number:

TK121

REN Libo, HE Hailan, ZHANG Manli, LU Hao. Erosion investigation of liquid-solid flows in narrow rectangular channel[J]. Chemical Industry and Engineering Progress, 2022, 41(S1): 81-90.

任立波, 何海澜, 张曼丽, 卢浩. 狭窄矩形通道内液固两相磨蚀特性[J]. 化工进展, 2022, 41(S1): 81-90.

Figures/Tables 13

References 28

1	DESALE G R, GANDHI B K, JAIN S C. Particle size effects on the slurry erosion of aluminium alloy (AA 6063)[J]. Wear, 2009, 266: 1066-1071.
2	NGUYEN V B, NGUYEN Q B, ZHANG Y W, et al. Effect of particle size on erosion characteristics[J]. Wear, 2016, 348-349: 126-137.
3	STACHOWIAK G B. The effects of particle characteristics on three-body abrasive wear[J]. Wear, 2001, 249: 201-207.
4	WALKER C I, HAMBE M. Influence of particle shape on slurry wear of white iron[J].Wear, 2015: 1021-1027.
5	ARABNEJAD H, SHIRAZI S A, MCLAURY B S, et al. The effect of erodent particle hardness on the erosion of stainless steel[J]. Wear, 2015, 332/333: 1098-1103.
6	DESALE G R, GANDHI B K, JAIN S C. Slurry erosion of ductile materials under normal impact condition[J]. Wear, 2008, 264: 322-330.
7	ABD-ELRHMAN, ABOUEL-KASEM A, EMARA K M, et al. Effect of impact angle on slurry erosion behavior and mechanisms of carburized AISI 5117 steel[J]. Journal of Tribology, 2014, 136: 011106.
8	ISLAM M A, FARHAT Z N. Effect of impact angle and velocity on erosion of API X42 pipeline steel under high abrasive feed rate[J]. Wear, 2014, 311: 180-190.
9	OKA Y I, OKAMURA K, YOSHIDA T. Practical estimation of erosion damage caused by solid particle impact part I: Effects of impact parameters on a predictive equation[J]. Wear, 2005, 259: 95-101.
10	SHIMIZU K, XINBA Y A. Solid particle erosion and mechanical properties of stainless steels at elevated temperature[J]. Wear, 2011, 271: 1357-1364.
11	LI X, DING H, HUANG Z, et al. Solid particle erosion-wear behavior of SiC-Si₃N₄ composite ceramic at elevated temperature[J]. Ceramics International, 2014, 40: 16201-16207.
12	BEN-AMI Y, UZI A, LEVY A. Modelling the particles impingement angle to produce maximum erosion[J]. Powder Technology, 2016, 301: 1032-1043.
13	UZI A, LEVY A. On the relationship between erosion, energy dissipation and particle size[J]. Wear, 2019, 428-429: 404-416.
14	WANG Z T. Erosion model for brittle materials under low-speed impacts [J]. Journal of Tribology, 2020, 142: 074501.
15	ADEDEJI O E, DUARTE C A R. Prediction of thickness loss in a standard 90° elbow using erosion-coupled dynamic mesh[J]. Wear, 2020, 460-461: 203400.
16	YU W C, FEDE P, CLIMENT E, et al. Multi-fluid approach for the numerical prediction of wall erosion in an elbow[J]. Powder Technology, 2019, 354: 561-581.
17	ARABNEJAD H, SHIRAZI S A, MCLAURY B S, et al. The effect of erodent particle hardness on the erosion of stainless steel[J]. Wear, 2015, 332-333: 1098-1103.
18	任立波, 赵新强, 张少峰. 水平窄矩形通道内液固两相的流动特性[J]. 化工进展, 2018, 37(6): 2092-2100.
	REN Libo, ZHAO Xinqiang, ZHANG Shaofeng. Hydrodynamic investigation of liquid-solid flows in horizontal narrow rectangular channel[J]. Chemical Industry and Engineering Progress, 2018, 37(6): 2092-2100.
19	REN LB, ZHAO X Q, ZHANG S F. Hydrodynamic investigation of slurry flows in horizontal narrow rectangular channels[J]. International Journal of Heat and Technology, 2017, 35(4): 730-736.
20	MESSA G V, MALIN M, MALAVASI S. Numerical prediction of fully-suspended slurry flow in horizontal pipes [J]. Powder Technology, 2014, 256: 61-70.
21	胡仁涛, 任立波, 王德武, 等. 竖直窄通道充分发展段液固流动特性的数值模拟[J]. 化工学报, 2018, 69(8): 3408-3417.
	HU Rentao, REN Libo, WANG Dewu, et al. Numerical simulation of fully developed liquid-solid flow in vertical narrow Channel[J]. CIESC Journal, 2018, 69(8): 3408-3417.
22	OKA Y I, OHNOGI H, HOSOKAWA T, et al. The impact angle dependence of erosion damage caused by solid impact[J]. Wear, 1997, 203-204: 573-579.
23	ZHANG Y, REUTERFORS E P, MCLAURY B S. Comparison of computed and measured particle velocities and erosion in water and air flows[J]. Wear, 2007, 263: 330-338.
24	NGUYEN Q B, LIM C Y H, NGUYEN V B, et al. Slurry erosion characteristics and erosion mechanisms of stainless steel[J]. Tribology International. 2014, 79: 1-7.
25	NGUYEN V B, NGUYEN Q B, LIU Z G, et al. A combined numerical-experimental study on the effect of surface evolution on the water-sand multiphase flow characteristics and the material erosion behavior[J]. Wear, 2014, 319: 96-109.
26	WILSON K C, SANDERS R S, GILLIES R G, et al. Verification of the near-wall model for slurry flow[J]. Powder Technology, 2010, 197(3): 247-253.
27	HAIDER A, LEVENSPIEL O. Drag coefficient and terminal velocity of spherical and non-spherical particles[J]. Powder Technology, 1989, 58: 63-70.
28	JAVAHERI V, PORTER D, KUOKKALA V T. Slurry erosion of steel-Review of tests, mechanisms and materials[J]. Wear, 2018, 408/409: 248-273.

[1]	WANG Shuo, ZHANG Yaxin, ZHU Botao. Prediction of erosion life of coal water slurry pipeline based on grey prediction model [J]. Chemical Industry and Engineering Progress, 2023, 42(7): 3431-3442.
[2]	HOU Wan, CHEN Huilong, CHENG Qian, CHEN Yingjian, WEI Zepeng, ZHAO Binjuan. Numerical calculation and analysis of vapor-liquid-solid flow characteristics of high temperature sealing lubricating film [J]. Chemical Industry and Engineering Progress, 2023, 42(2): 699-710.
[3]	QIAO Yuan, QIU Chang, QIAN Jinyuan, GAN Ruibin, XU Chunming, JIN Zhijiang. Analysis of erosion and cavitation wear in the cage-typed control valve [J]. Chemical Industry and Engineering Progress, 2023, 42(10): 5111-5120.
[4]	WANG Zhijie, ZHAO Yanlin, YAO Jun. Numerical simulation of flow field characteristics and particle motion behavior in Rushton turbine stirred tank [J]. Chemical Industry and Engineering Progress, 2021, 40(12): 6479-6489.
[5]	YE Fuxiang, YAO Jun, LIU Yufa, ZHAO Yanlin, DONG Shigang. Erosion corrosion characteristics of X80 pipeline steel in two-phase flow under the influence of multiple factors [J]. Chemical Industry and Engineering Progress, 2021, 40(12): 6450-6459.
[6]	Gaofeng LIANG, Xueqing CHEN, Dewu WANG, Shaofeng ZHANG, Yan LIU, Jijun ZHANG. Analysis of crystal settling velocity and purification law in the elutriation process of aluminum chloride hexahydrate [J]. Chemical Industry and Engineering Progress, 2021, 40(1): 386-393.
[7]	Shaoqi CHEN, Yuanyuan SHAO, Keying MA, Ying ZHENG, Jingxu ZHU. Development and applications of liquid-solid circulating fluidized beds—Process integration and intensification [J]. Chemical Industry and Engineering Progress, 2019, 38(01): 122-137.
[8]	ZHOU Hui, ZHENG Jun, HU Dawei, ZHANG Chuanqing, LU Jingjing, GAO Yang. Effect of CO₂ erosion on the pore structure of cement-based materials in water soaking and moist environment [J]. Chemical Industry and Engineering Progress, 2018, 37(12): 4791-4798.
[9]	WU Haizhen, WEI Cong, YU Zhe, WEI Jingyue, WU Chaofei, WEI Chaohai. Oxygen dissolution and gas liquid mass transfer in aerobic biological wastewater treatment: theory and practice [J]. Chemical Industry and Engineering Progress, 2018, 37(10): 4033-4043.
[10]	REN Libo, ZHAO Xinqiang, ZHANG Shaofeng. Hydrodynamic investigation of liquid-solid flows in horizontal narrow rectangular channel [J]. Chemical Industry and Engineering Progress, 2018, 37(06): 2092-2100.
[11]	LIU Yan, ZHANG Yingdi, PEI Chenglin, WANG Zhi, ZHANG Wei. Evaluation on heat transfer performance of horizontal liquid-solid circulating fluidized bed heat exchanger [J]. Chemical Industry and Engineering Progress, 2016, 35(11): 3421-3425.
[12]	LI Shaohua1，MA Wen’e2，WANG Hu1. Numerical simulation for effect of nozzle angle on flow resistance in CFB-FGD [J]. Chemical Industry and Engineering Progree, 2014, 33(03): 590-594.
[13]	LIU Yan1，LI Hongbin1，2，WANG Jingang1，ZHANG Shaofeng1. Researches on pressure drop of horizontal liquid-solids two-phase fluidized bed heat exchang tube with Kenics static mixer [J]. Chemical Industry and Engineering Progree, 2013, 32(11): 2579-2582.
[14]	ZHENG Jie1，LIU Mingyan 1，2，MA Yue1. Particle attrition behavior in a fluidized bed evaporator with vapor-liquid-solid circulating flows [J]. Chemical Industry and Engineering Progree, 2013, 32(06): 1219-1223.
[15]	SUN Baoquan1，XIA Ji1，Lü Wenjie 2，YANG Qiang 2. Liquid-solid micro hydrocyclone separation technology in removing catalyst particle from water [J]. Chemical Industry and Engineering Progree, 2011, 30(10): 2173-.