Journal of Jilin University(Engineering and Technology Edition) ›› 2024, Vol. 54 ›› Issue (9): 2495-2501.doi: 10.13229/j.cnki.jdxbgxb.20230458

Previous Articles    

Numerical simulation of erosion characteristics of H-type finned elliptical tubes

Jin-xing WU(),Yu-xiang MA,Jia-bang XIAO,Yao XU,Song-ge LI   

  1. School of Mechanical and Power Engineering，Zhengzhou University，Zhengzhou 450001，China
  • Received:2023-05-10 Online:2024-09-01 Published:2024-10-28

RICH HTML

 0   

PDF (PC)

59

Abstract:

To determine the repair cycle of H-shaped finned elliptical tubes， a discrete phase model DPM was used to conduct three-dimensional numerical simulation of smoke erosion of H-shaped finned elliptical tubes and obtain the wear characteristics of the wall. And the wear law of the main pipe wall and the fin wall surface due to the ratio of long to short axis， fin thickness， and fin pitch was studied. The results show that the wear rate of the main pipe wall and fins increases with the ratio of the long and short axes， and the fin pitch increases， showing a continuous decreasing trend in wear rate. As the thickness of the fins increases， the wear rate of the fin wall surface continuously increases. By changing the fin spacing， the wear rate of the base tube wall can be reduced by 46%. By changing the thickness of the fins， the wear rate of the fin wall can be increased by 212%.

Key words: flue gas waste heat utilization, H-type finned tube, elliptical tube bundle, numerical simulation

CLC Number: 

  • TK172

Fig.1

H-type finned tube elliptical tube bundle structure size and schematic diagram"

Fig.2

Schematic diagram of speed and angle"

Fig.3

Boundary condition schematic"

Fig.4

Grid division and irrelevance test"

Fig.5

Schematic diagram of elliptical base tube H-type finned elliptical tube"

Table 1

Structural parameters of elliptical tube bundles with different lengths and short axes"

d1/d211.11.21.31.41.51.61.7
d1/221.0021.9922.8623.6324.3324.9625.5226.01
d2/221.0019.9919.0518.1817.3816.6415.9515.30

Fig.6

Simulation diagram of smoke passing through H-shaped fins"

Fig.7

H-type fins and elliptical tube surface erosion rate with the long and short axis variation law"

Fig.8

Erosion contour of elliptical base tube wall surface with the ratio of long and short axis"

Fig.9

H-type fins and elliptical tube surface erosion rate with the fin pitch change law"

Fig.10

H-type fins and elliptical tube surface erosion rate with the fin thickness change law"

Fig.11

Degree of influence of d1/d2， Fp， Ft， on the erosion of fin wall surface and base tube wall surface"

1 黄丹,曾小义,杨建军,等. 超临界W火焰锅炉水冷壁管频繁拉裂泄漏事故原因分析[J]. 热加工工艺,2022,51(15):150-154, 158.
Huang Dan, Zeng Xiao-yi, Yang Jian-jun, et al. Analysis on causes of frequent rupture and leakage of water wall pipe of supercritical W Flame Boiler[J]. Hot Working Technology, 2022, 51(15): 150-154, 158.
2 张晓东,唐丽丽,翟璇,等. 燃煤发电机组烟气余热回收系统优化与经济性分析[J]. 锅炉技术,2022,53(4):74-78.
Zhang Xiao-dong, Tang Li-li, Zhai Xuan, et al. Optimization and economic analysis of flue gas wasteheat recovery system of coalfired power plants[J]. Boiler Technology, 2022, 53(4): 74-78.
3 徐承美,谢英柏,弓学敏. 燃煤锅炉烟气余热利用途径分析[J]. 热能动力工程,2020,35(8):151-157.
Xu Cheng-mei, Xie Ying-bai, Gong Xue-min. Analysis on waste heat utilization way of flue gas in coal-fired boiler[J]. Joumal of Engineering for Thermal Energy and Power, 2020, 35(8): 151-157.
4 李增亮,杜明超,董祥伟,等.固体颗粒冲蚀磨损模型的建立及有限元分析[J].计算机仿真,2018,35(6):275-281.
Li Zeng-liang, Du Ming-chao, Dong Xiang-wei, et al. Modeling and analysis of solid particle erosion process based on finite element method[J]. Computer Simulation, 2018, 35(6): 275-281.
5 叶侠丰,丁红蕾,潘卫国,等. 带拓展面椭圆管束的换热、积灰及磨损特性研究[J]. 中国电力,2018,51(6):26-32.
Ye Xia-feng, Ding Hong-lei, Pan Wei-guo, et al. Numerical study on the heat transfer, fouling and erosion characteristics of the elliptical tube bundle with different extended heating surfaces[J]. Electric Power, 2018, 51(6): 26-32.
6 叶侠丰,丁红蕾,潘卫国,等. 圆管束与椭圆管束换热、磨损及积灰特性的数值研究[J]. 中国电机工程学报,2018,38(11):3289-3294.
Ye Xia-feng, Ding Hong-lei, Pan Wei-guo, et al. Numerical study on heat transfer, wear and fouling performance of circular tube bundle and elliptical tube bundle[J]. Proceedings of the CSEE, 2018, 38(11): 3289-3294.
7 凌冬冬,李永光,马昕霞,等. 开缝宽度对H型椭圆翅片管束换热及流动的影响[J]. 上海电力学院学报, 2018,34(2): 106-110.
Ling Dong-dong, Li Yong-guang, Ma Xin-xia, et al. Influence of slot width on heat transfer and flow of h type elliptical finned tubes[J]. Journal of Shanghai University of Electric Power, 2018, 34(2): 106-110.
8 蒋涛.火力发电厂锅炉屏式过热器弯管泄漏失效原因分析及预防措施[J].铸造技术,2022,43(3):224-228.
Jiang Tao. Analysis and prevention of platen superheater elbow leakage of supercritical boiler in a coal-fired power plant[J]. Foundry Technology, 2022, 43(3): 224-228.
9 谌康,蔡文河,杜双明,等.电站锅炉水冷壁管的泄漏原因及应对措施[J].腐蚀与防护,2022,43(2):62-67.
Shen Kang, Cai Wen-he, Du Shuang-ming, et al. Cause analysis and treatment measures of water cooling wall pipe leakage ina power station boiler[J]. Corrosion & Protection, 2022, 43(2): 62-67.
10 闫廷庆,支卫峰. 对冲燃烧锅炉侧墙水冷壁高温腐蚀原因的空气动力研究[J]. 锅炉技术,2022,53(1):22-25, 31.
Yan Ting-qing, Zhi Wei-feng. Flow-field investigation of high-temperature corrosionon side waterwall of opposed firing boilers[J]. Boiler Technology, 2022, 53(1): 22-25, 31.
11 杨子江,袁益超,杨雨峤,等. 椭圆管H型翅片的翅片效率计算[J]. 锅炉技术,2019,50(3):18-23.
Yang Zi-jiang, Yuan Yi-chao, Yang Yu-giao,et al. Calculation for fin efficiency of H-type finned elliptical tube[J]. Boiler Technology, 2019, 50(3): 18-23.
12 Om P, Arvind K, Basant S S. CFD modeling of slurry flow erosion wear rate through mitre pipe bend[J]. Proceedings of the Institution of Mechanical Engineers Part C-Journal of Mechanical Engineering Science, 2022, 236(5): 2256-2267.
13 汪洋,郑志敏,张银森,等. 椭圆型管束的积灰特性数值研究[J]. 工程热物理学报,2022,43(3):720-728.
Wang Yang, Zheng Zhi-min Zhang Yin-sen, et al. Numerical study on ash deposition of the elliptical tube bundles[J]. Journal of Engineering Thermophysics, 2022, 43(3): 720-728.
[1] Hua-fei HE,Zhao-ping LI,Rui-an FU,Shao-lin MA,Ming-li HUANG. Experiment on seismic performance of prefabricated sidewall joints considering strata restraint effect [J]. Journal of Jilin University(Engineering and Technology Edition), 2024, 54(6): 1601-1611.
[2] Shu-mei LOU,Yi-ming LI,Xin LI,Peng CHEN,Xue-feng BAI,Bao-jia CHENG. Thermal deformation behavior of graphene nanosheets reinforced 7075Al based on BP neural network and Arrhenius constitutive equation [J]. Journal of Jilin University(Engineering and Technology Edition), 2024, 54(5): 1237-1245.
[3] Qiu ZHAO,Peng CHEN,Yu-wei ZHAO,Ao YU. Overall mechanical performance of jointless bridges with arch structure behind abutment [J]. Journal of Jilin University(Engineering and Technology Edition), 2024, 54(4): 1016-1027.
[4] Yi-gang WANG,Yu-peng WANG,Hao ZHANG,Si-an ZHAO. Identification and analysis of aerodynamic noise sources in the bogie area of high⁃speed trains [J]. Journal of Jilin University(Engineering and Technology Edition), 2024, 54(2): 346-355.
[5] Wei-hua ZHANG,Jia-ming LIU,Li-peng XIE,Heng DING. Lane⁃changing model of autonomous vehicle in weaving area of expressway in intelligent and connected mixed environment [J]. Journal of Jilin University(Engineering and Technology Edition), 2024, 54(2): 469-477.
[6] Xing WEI,Ya-jie GAO,Zhi-rui KANG,Yu-chen LIU,Jun-ming ZHAO,Lin XIAO. Numerical simulation of residual stress field of stud girth weld in low temperature environment [J]. Journal of Jilin University(Engineering and Technology Edition), 2024, 54(1): 198-208.
[7] Zhi ZHENG,Pei YUAN,Xuan-hui JIN,Si-si WEI,Bo GENG. Experimental on composite flexible anti⁃collision fender of bridge pier [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(9): 2581-2590.
[8] Feng WANG,Shuang-rui LIU,Jia-ying WANG,Jia-ling SONG,Jun WANG,Jiu-peng ZHANG,Xiao-ming HUANG. Size and shape effects of wind drag coefficients for porous structures [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(6): 1677-1685.
[9] Chun-li WU,Shi-ming HUANG,Kui LI,Zheng-wei GU,Xiao-ming HUANG,Bing-tao ZHANG,Run-chao YANG. Analysis of pier action effect under flood based on numerical simulation and statistical analysis [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(6): 1612-1620.
[10] Zheng-wei GU,Pan ZHANG,Dong-ye LYU,Chun-li WU,Zhong YANG,Guo-jin TAN,Xiao-ming HUANG. Earthquake⁃induced residual displacement analysis of simply supported beam bridge based on numerical simulation [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(6): 1711-1718.
[11] Hai-bin WEI,Shuan-ye HAN,Hai-peng BI,Qiong-hui LIU,Zi-peng MA. Intelligent sensing road active ice and snow removal system and experimental technology [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(5): 1411-1417.
[12] Jing-fu JIN,Xin-ju DONG,Zhi-cheng JIA,Kang WANG,Lian-bin HE,Meng ZOU,Ying-chun QI. Optimization of the tread plate-spring structure of flexible metal wheel with plate-spring [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(4): 964-972.
[13] Zhuang-zhuang LIU,You-wei ZHANG,Peng-yu JI,Abshir Ismail Yusuf,Lin LI,Ya-zhen HAO. Study on heat transfer characteristics of electric heating snow melting asphalt pavement [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(2): 523-530.
[14] Fang-xi XIE,Shi-jie ZHAO,Zi-sen WANG,Shuang LIU,Xiao-ping LI,Cheng ZHANG. Simulation analysis of influencing factors of flash boiling spray collapse of porous injector [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(12): 3314-3325.
[15] Li-zhao DAI,Liang ZHOU,Xiao-wen YANG,Lei WANG. Meso-scale numerical simulation of interfacial bond behavior of corroded RC beams based on connector element [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(10): 2886-2896.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Engineering and Technology Edition), All Rights Reserved.
Tel: +86-431-85095297　Fax: +86-431-85094074　E-mail: xbgxb@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd