The Flow Field Analysis and Structure Optimization of Large Diameter Butterfly Valve

Wang Yuhao; He Qingzhong

doi:doi:10.11648/j.ajmie.20200504.12

| Peer-Reviewed

The Flow Field Analysis and Structure Optimization of Large Diameter Butterfly Valve

Wang Yuhao, He Qingzhong

Published in American Journal of Mechanical and Industrial Engineering (Volume 5, Issue 4)

Received: 24 August 2020 Accepted: 11 September 2020 Published: 21 September 2020

Views: Downloads:

Download PDF

Share This Article

Twitter
Linked In
Facebook

Abstract

The large diameter butterfly valve used in Qinghai Naqu hydropower station was subjected to strong vibration when the opening was small. In view of the phenomenon of strong vibration and damage of the valve, the fluid theory analysis is carried out and the appropriate mathematical model of fluid analysis is selected. This paper established the flow model of butterfly valve for different opening degrees with the 2D drawings and simulated the flow field by using CFX software. Through numerical simulation, the flow field characteristics of the valve under different opening degrees are obtained, and it is found that the valve failure is caused by vortex street effect. The results of numerical analysis show that the vortex are the most strong in the range of 5% to 30% and The vortex street phenomenon is the strongest at 5% opening. When the opening is greater than 30%, the vortex street effect decreases gradually. Meanwhile, the reason of vortex street effect is that the structure of butterfly plate is complex, and an improved structure was given and the results of numerical analysis show that the vortex effect decreased significantly for the new one. This new structure can effectively prevent the vortex resonance and give an example for the new design of a large butterfly valve.

Published in	American Journal of Mechanical and Industrial Engineering (Volume 5, Issue 4)
DOI	10.11648/j.ajmie.20200504.12
Page(s)	59-63
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

Butterfly Valve, CFX Software, Vortex Resonance, Structure Optimization

References

[1]	TONG Chengbiao. Optimization design and flow field research of butterfly valve. Changsha, School of mechanical and transport engineering, Hunan University, 2010.
[2]	LIli, SHI Zhihui, ZAHO Jinglong. Numerical simulation of flow field around vortex street and vortex flowmeter. Journal of Dalian Jiaotong University, 2014, 35 (6): 32-35.
[3]	DENG Jian, LI Jinghu, ZHU Ayuan. Research on Karman vortex street effect of UAV with skid. Aircraft design, 2014, 34 (3): 1-3.
[4]	Min Qiangli. Numerical simulation of Karman vortex street with low Reynolds number. Journal of Sichuan military engineering, 2009, 30 (11): 81-83.
[5]	Pang Lijun, LV Guiping, Zhong Su. Vortex street simulation and vibration analysis of turbine fixed guide vane. Journal of mechanical engineering, 2011, 47 (22): 159-166.
[6]	Shi Yiping, Zhou Yurong. ABAQUS finite element analysis example details. Beijing: China Machine Press, 2006: 126.
[7]	Zhang Qinzhao, Liu Fusheng, Wang Hong. Study on flow field and resistance characteristics of triple eccentric butterfly valve. Fluid machinery, 2013, 41 (11): 1-5.
[8]	Ding Yuan, Wu Jihua. ANSYS CFX 14.0 from introduction to mastery. Beijing: Tsinghua University Press, 2013.
[9]	Jia Rumin, Zhang Weizheng. CFD numerical simulation and flow path optimization of control valve. Chemical machinery, 2009, 36 (2): 131-134.
[10]	Li Jianwei, Xiao Liangyu. Research on vibration characteristics of butterfly valve disc of Francis turbine. Valve, 2013, 6: 15-17.
[11]	Wang Dong, Zhang Siqing and Zhang Yunlong. Dynamic analysis and dovetail modification of turbine fixed guide vane vortex street. China electric power, 2014, 0 (11): 5-9.
[12]	Li Tong, Zhou Jianjia, Yuan Shouqi. Static analysis of spiral centrifugal pump impeller based on flow field calculation. Fluid machinery, 2013, 41 (12): 22-26.

Cite This Article

Plain Text BibTeX RIS

APA Style

Wang Yuhao, He Qingzhong. (2020). The Flow Field Analysis and Structure Optimization of Large Diameter Butterfly Valve. American Journal of Mechanical and Industrial Engineering, 5(4), 59-63. https://doi.org/10.11648/j.ajmie.20200504.12

Copy | Download

ACS Style

Wang Yuhao; He Qingzhong. The Flow Field Analysis and Structure Optimization of Large Diameter Butterfly Valve. Am. J. Mech. Ind. Eng. 2020, 5(4), 59-63. doi: 10.11648/j.ajmie.20200504.12

Copy | Download

AMA Style

Wang Yuhao, He Qingzhong. The Flow Field Analysis and Structure Optimization of Large Diameter Butterfly Valve. Am J Mech Ind Eng. 2020;5(4):59-63. doi: 10.11648/j.ajmie.20200504.12

Copy | Download

@article{10.11648/j.ajmie.20200504.12,
  author = {Wang Yuhao and He Qingzhong},
  title = {The Flow Field Analysis and Structure Optimization of Large Diameter Butterfly Valve},
  journal = {American Journal of Mechanical and Industrial Engineering},
  volume = {5},
  number = {4},
  pages = {59-63},
  doi = {10.11648/j.ajmie.20200504.12},
  url = {https://doi.org/10.11648/j.ajmie.20200504.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajmie.20200504.12},
  abstract = {The large diameter butterfly valve used in Qinghai Naqu hydropower station was subjected to strong vibration when the opening was small. In view of the phenomenon of strong vibration and damage of the valve, the fluid theory analysis is carried out and the appropriate mathematical model of fluid analysis is selected. This paper established the flow model of butterfly valve for different opening degrees with the 2D drawings and simulated the flow field by using CFX software. Through numerical simulation, the flow field characteristics of the valve under different opening degrees are obtained, and it is found that the valve failure is caused by vortex street effect. The results of numerical analysis show that the vortex are the most strong in the range of 5% to 30% and The vortex street phenomenon is the strongest at 5% opening. When the opening is greater than 30%, the vortex street effect decreases gradually. Meanwhile, the reason of vortex street effect is that the structure of butterfly plate is complex, and an improved structure was given and the results of numerical analysis show that the vortex effect decreased significantly for the new one. This new structure can effectively prevent the vortex resonance and give an example for the new design of a large butterfly valve.},
 year = {2020}
}

Copy | Download

TY  - JOUR
T1  - The Flow Field Analysis and Structure Optimization of Large Diameter Butterfly Valve
AU  - Wang Yuhao
AU  - He Qingzhong
Y1  - 2020/09/21
PY  - 2020
N1  - https://doi.org/10.11648/j.ajmie.20200504.12
DO  - 10.11648/j.ajmie.20200504.12
T2  - American Journal of Mechanical and Industrial Engineering
JF  - American Journal of Mechanical and Industrial Engineering
JO  - American Journal of Mechanical and Industrial Engineering
SP  - 59
EP  - 63
PB  - Science Publishing Group
SN  - 2575-6060
UR  - https://doi.org/10.11648/j.ajmie.20200504.12
AB  - The large diameter butterfly valve used in Qinghai Naqu hydropower station was subjected to strong vibration when the opening was small. In view of the phenomenon of strong vibration and damage of the valve, the fluid theory analysis is carried out and the appropriate mathematical model of fluid analysis is selected. This paper established the flow model of butterfly valve for different opening degrees with the 2D drawings and simulated the flow field by using CFX software. Through numerical simulation, the flow field characteristics of the valve under different opening degrees are obtained, and it is found that the valve failure is caused by vortex street effect. The results of numerical analysis show that the vortex are the most strong in the range of 5% to 30% and The vortex street phenomenon is the strongest at 5% opening. When the opening is greater than 30%, the vortex street effect decreases gradually. Meanwhile, the reason of vortex street effect is that the structure of butterfly plate is complex, and an improved structure was given and the results of numerical analysis show that the vortex effect decreased significantly for the new one. This new structure can effectively prevent the vortex resonance and give an example for the new design of a large butterfly valve.
VL  - 5
IS  - 4
ER  -

Copy | Download

Author Information

Wang Yuhao

Aerospace Science and Technology Microsystem Technology Co., Ltd, Nanjing, China
He Qingzhong

College of Mechanical Engineering, Sichuan University of Science and Engineering, Zigong, China

Download PDF

Sections

Plain Text BibTeX RIS

APA Style

Wang Yuhao, He Qingzhong. (2020). The Flow Field Analysis and Structure Optimization of Large Diameter Butterfly Valve. American Journal of Mechanical and Industrial Engineering, 5(4), 59-63. https://doi.org/10.11648/j.ajmie.20200504.12

Copy | Download

ACS Style

Wang Yuhao; He Qingzhong. The Flow Field Analysis and Structure Optimization of Large Diameter Butterfly Valve. Am. J. Mech. Ind. Eng. 2020, 5(4), 59-63. doi: 10.11648/j.ajmie.20200504.12

Copy | Download

AMA Style

Wang Yuhao, He Qingzhong. The Flow Field Analysis and Structure Optimization of Large Diameter Butterfly Valve. Am J Mech Ind Eng. 2020;5(4):59-63. doi: 10.11648/j.ajmie.20200504.12

Copy | Download

@article{10.11648/j.ajmie.20200504.12,
  author = {Wang Yuhao and He Qingzhong},
  title = {The Flow Field Analysis and Structure Optimization of Large Diameter Butterfly Valve},
  journal = {American Journal of Mechanical and Industrial Engineering},
  volume = {5},
  number = {4},
  pages = {59-63},
  doi = {10.11648/j.ajmie.20200504.12},
  url = {https://doi.org/10.11648/j.ajmie.20200504.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajmie.20200504.12},
  abstract = {The large diameter butterfly valve used in Qinghai Naqu hydropower station was subjected to strong vibration when the opening was small. In view of the phenomenon of strong vibration and damage of the valve, the fluid theory analysis is carried out and the appropriate mathematical model of fluid analysis is selected. This paper established the flow model of butterfly valve for different opening degrees with the 2D drawings and simulated the flow field by using CFX software. Through numerical simulation, the flow field characteristics of the valve under different opening degrees are obtained, and it is found that the valve failure is caused by vortex street effect. The results of numerical analysis show that the vortex are the most strong in the range of 5% to 30% and The vortex street phenomenon is the strongest at 5% opening. When the opening is greater than 30%, the vortex street effect decreases gradually. Meanwhile, the reason of vortex street effect is that the structure of butterfly plate is complex, and an improved structure was given and the results of numerical analysis show that the vortex effect decreased significantly for the new one. This new structure can effectively prevent the vortex resonance and give an example for the new design of a large butterfly valve.},
 year = {2020}
}

Copy | Download

TY  - JOUR
T1  - The Flow Field Analysis and Structure Optimization of Large Diameter Butterfly Valve
AU  - Wang Yuhao
AU  - He Qingzhong
Y1  - 2020/09/21
PY  - 2020
N1  - https://doi.org/10.11648/j.ajmie.20200504.12
DO  - 10.11648/j.ajmie.20200504.12
T2  - American Journal of Mechanical and Industrial Engineering
JF  - American Journal of Mechanical and Industrial Engineering
JO  - American Journal of Mechanical and Industrial Engineering
SP  - 59
EP  - 63
PB  - Science Publishing Group
SN  - 2575-6060
UR  - https://doi.org/10.11648/j.ajmie.20200504.12
AB  - The large diameter butterfly valve used in Qinghai Naqu hydropower station was subjected to strong vibration when the opening was small. In view of the phenomenon of strong vibration and damage of the valve, the fluid theory analysis is carried out and the appropriate mathematical model of fluid analysis is selected. This paper established the flow model of butterfly valve for different opening degrees with the 2D drawings and simulated the flow field by using CFX software. Through numerical simulation, the flow field characteristics of the valve under different opening degrees are obtained, and it is found that the valve failure is caused by vortex street effect. The results of numerical analysis show that the vortex are the most strong in the range of 5% to 30% and The vortex street phenomenon is the strongest at 5% opening. When the opening is greater than 30%, the vortex street effect decreases gradually. Meanwhile, the reason of vortex street effect is that the structure of butterfly plate is complex, and an improved structure was given and the results of numerical analysis show that the vortex effect decreased significantly for the new one. This new structure can effectively prevent the vortex resonance and give an example for the new design of a large butterfly valve.
VL  - 5
IS  - 4
ER  -

Copy | Download