Analysis of Double Seat Seal of Ultra High Pressure Flat Gate Valve

Wei Junhui; Zhang Chuan; Jing Hongtao; Wang Wei; Tu Zhixiong; She Xiaomei; Zou Yan

doi:doi:10.11648/j.aas.20210604.16

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Analysis of Double Seat Seal of Ultra High Pressure Flat Gate Valve

Wei Junhui, Zhang Chuan, Jing Hongtao, Wang Wei, Tu Zhixiong, She Xiaomei, Zou Yan

Published in Advances in Applied Sciences (Volume 6, Issue 4)

Received: 12 February 2021 Accepted: 23 February 2021 Published: 11 November 2021

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Abstract

As an important part of the Christmas tree, the sealing performance of the flat gate valve is very important, and the O-ring seal is the most commonly used seal in the flat gate valve. Therefore, the research on O-rings is particularly important. For the flat gate valve with a single gate, its structure has gradually developed from a single seat seal to a double seat seal. This article mainly analyzes the sealing principle of the double seat in the ultra-high pressure flat gate valve and the influence of the pre-tightening force of the sealing ring on the sealing effect. Using finite element analysis software, a two-dimensional axisymmetric model of the double valve seat sealing structure was established to study the non-metallic sealing performance of the valve seat. The Mises stress, the maximum contact stress of the sealing surface, and the contact area of the sealing surface of the O-ring seal under different compression ratios are analyzed. The results show that when only the sealing performance and pre-tightening force requirements are considered, an O-ring with a larger wire diameter should be selected as much as possible. When considering the service life of the O-ring seal, the compression rate of the seal ring should not exceed 20%. Therefore, the selected seal ring wire diameter is 3.75mm within the recommended seal ring compression rate range.

Published in	Advances in Applied Sciences (Volume 6, Issue 4)
DOI	10.11648/j.aas.20210604.16
Page(s)	110-115
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), 2021. Published by Science Publishing Group

Keywords

Flat Gate Valve, Double Seat, O-ring, Sealing Performance

References

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[10]	Fan Zhimin, Li Long, Wang Qilin. Sealing performance analysis of O-ring seal under deep sea high pressure environment [J]. Mechanical and Electrical Engineering, 2019, 36 (02): 131-135.
[11]	Zhang Chengfu. Calculation method of compression rate of O-ring seal and example verification [J]. China Petroleum and Chemical Standards and Quality, 2018, 38 (19): 175-180.
[12]	R. Faruk Yükseler. Local and nonlocal buckling of Mooney-Rivlin rods [J]. European Journal of Mechanics-A/Solids, 2019 (78): 103816
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[14]	Zhang Zhenxing, Zhang Jiangtao, Gong Maotao, Xia Yijie. Finite element nonlinear analysis of O-ring seal of feedwater pump oil seal device [J]. Hydraulics and Pneumatics, 2019 (05): 98-103.
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APA Style

Wei Junhui, Zhang Chuan, Jing Hongtao, Wang Wei, Tu Zhixiong, et al. (2021). Analysis of Double Seat Seal of Ultra High Pressure Flat Gate Valve. Advances in Applied Sciences, 6(4), 110-115. https://doi.org/10.11648/j.aas.20210604.16

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ACS Style

Wei Junhui; Zhang Chuan; Jing Hongtao; Wang Wei; Tu Zhixiong, et al. Analysis of Double Seat Seal of Ultra High Pressure Flat Gate Valve. Adv. Appl. Sci. 2021, 6(4), 110-115. doi: 10.11648/j.aas.20210604.16

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AMA Style

Wei Junhui, Zhang Chuan, Jing Hongtao, Wang Wei, Tu Zhixiong, et al. Analysis of Double Seat Seal of Ultra High Pressure Flat Gate Valve. Adv Appl Sci. 2021;6(4):110-115. doi: 10.11648/j.aas.20210604.16

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@article{10.11648/j.aas.20210604.16,
  author = {Wei Junhui and Zhang Chuan and Jing Hongtao and Wang Wei and Tu Zhixiong and She Xiaomei and Zou Yan},
  title = {Analysis of Double Seat Seal of Ultra High Pressure Flat Gate Valve},
  journal = {Advances in Applied Sciences},
  volume = {6},
  number = {4},
  pages = {110-115},
  doi = {10.11648/j.aas.20210604.16},
  url = {https://doi.org/10.11648/j.aas.20210604.16},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.aas.20210604.16},
  abstract = {As an important part of the Christmas tree, the sealing performance of the flat gate valve is very important, and the O-ring seal is the most commonly used seal in the flat gate valve. Therefore, the research on O-rings is particularly important. For the flat gate valve with a single gate, its structure has gradually developed from a single seat seal to a double seat seal. This article mainly analyzes the sealing principle of the double seat in the ultra-high pressure flat gate valve and the influence of the pre-tightening force of the sealing ring on the sealing effect. Using finite element analysis software, a two-dimensional axisymmetric model of the double valve seat sealing structure was established to study the non-metallic sealing performance of the valve seat. The Mises stress, the maximum contact stress of the sealing surface, and the contact area of the sealing surface of the O-ring seal under different compression ratios are analyzed. The results show that when only the sealing performance and pre-tightening force requirements are considered, an O-ring with a larger wire diameter should be selected as much as possible. When considering the service life of the O-ring seal, the compression rate of the seal ring should not exceed 20%. Therefore, the selected seal ring wire diameter is 3.75mm within the recommended seal ring compression rate range.},
 year = {2021}
}

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TY  - JOUR
T1  - Analysis of Double Seat Seal of Ultra High Pressure Flat Gate Valve
AU  - Wei Junhui
AU  - Zhang Chuan
AU  - Jing Hongtao
AU  - Wang Wei
AU  - Tu Zhixiong
AU  - She Xiaomei
AU  - Zou Yan
Y1  - 2021/11/11
PY  - 2021
N1  - https://doi.org/10.11648/j.aas.20210604.16
DO  - 10.11648/j.aas.20210604.16
T2  - Advances in Applied Sciences
JF  - Advances in Applied Sciences
JO  - Advances in Applied Sciences
SP  - 110
EP  - 115
PB  - Science Publishing Group
SN  - 2575-1514
UR  - https://doi.org/10.11648/j.aas.20210604.16
AB  - As an important part of the Christmas tree, the sealing performance of the flat gate valve is very important, and the O-ring seal is the most commonly used seal in the flat gate valve. Therefore, the research on O-rings is particularly important. For the flat gate valve with a single gate, its structure has gradually developed from a single seat seal to a double seat seal. This article mainly analyzes the sealing principle of the double seat in the ultra-high pressure flat gate valve and the influence of the pre-tightening force of the sealing ring on the sealing effect. Using finite element analysis software, a two-dimensional axisymmetric model of the double valve seat sealing structure was established to study the non-metallic sealing performance of the valve seat. The Mises stress, the maximum contact stress of the sealing surface, and the contact area of the sealing surface of the O-ring seal under different compression ratios are analyzed. The results show that when only the sealing performance and pre-tightening force requirements are considered, an O-ring with a larger wire diameter should be selected as much as possible. When considering the service life of the O-ring seal, the compression rate of the seal ring should not exceed 20%. Therefore, the selected seal ring wire diameter is 3.75mm within the recommended seal ring compression rate range.
VL  - 6
IS  - 4
ER  -

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Author Information

Wei Junhui

Oil and Gas Engineering Research Institute of China Petroleum Tarim Oilfield Company, Korla, China
Zhang Chuan

CNPC BOMCO Drilling & Production Equipment Co., Ltd. Deyang, China
Jing Hongtao

Oil and Gas Engineering Research Institute of China Petroleum Tarim Oilfield Company, Korla, China
Wang Wei

CNPC BOMCO Drilling & Production Equipment Co., Ltd. Deyang, China
Tu Zhixiong

Oil and Gas Engineering Research Institute of China Petroleum Tarim Oilfield Company, Korla, China
She Xiaomei

CNPC BOMCO Drilling & Production Equipment Co., Ltd. Deyang, China
Zou Yan

CNPC BOMCO Drilling & Production Equipment Co., Ltd. Deyang, China

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Plain Text BibTeX RIS

APA Style

Wei Junhui, Zhang Chuan, Jing Hongtao, Wang Wei, Tu Zhixiong, et al. (2021). Analysis of Double Seat Seal of Ultra High Pressure Flat Gate Valve. Advances in Applied Sciences, 6(4), 110-115. https://doi.org/10.11648/j.aas.20210604.16

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ACS Style

Wei Junhui; Zhang Chuan; Jing Hongtao; Wang Wei; Tu Zhixiong, et al. Analysis of Double Seat Seal of Ultra High Pressure Flat Gate Valve. Adv. Appl. Sci. 2021, 6(4), 110-115. doi: 10.11648/j.aas.20210604.16

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AMA Style

Wei Junhui, Zhang Chuan, Jing Hongtao, Wang Wei, Tu Zhixiong, et al. Analysis of Double Seat Seal of Ultra High Pressure Flat Gate Valve. Adv Appl Sci. 2021;6(4):110-115. doi: 10.11648/j.aas.20210604.16

Copy | Download

@article{10.11648/j.aas.20210604.16,
  author = {Wei Junhui and Zhang Chuan and Jing Hongtao and Wang Wei and Tu Zhixiong and She Xiaomei and Zou Yan},
  title = {Analysis of Double Seat Seal of Ultra High Pressure Flat Gate Valve},
  journal = {Advances in Applied Sciences},
  volume = {6},
  number = {4},
  pages = {110-115},
  doi = {10.11648/j.aas.20210604.16},
  url = {https://doi.org/10.11648/j.aas.20210604.16},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.aas.20210604.16},
  abstract = {As an important part of the Christmas tree, the sealing performance of the flat gate valve is very important, and the O-ring seal is the most commonly used seal in the flat gate valve. Therefore, the research on O-rings is particularly important. For the flat gate valve with a single gate, its structure has gradually developed from a single seat seal to a double seat seal. This article mainly analyzes the sealing principle of the double seat in the ultra-high pressure flat gate valve and the influence of the pre-tightening force of the sealing ring on the sealing effect. Using finite element analysis software, a two-dimensional axisymmetric model of the double valve seat sealing structure was established to study the non-metallic sealing performance of the valve seat. The Mises stress, the maximum contact stress of the sealing surface, and the contact area of the sealing surface of the O-ring seal under different compression ratios are analyzed. The results show that when only the sealing performance and pre-tightening force requirements are considered, an O-ring with a larger wire diameter should be selected as much as possible. When considering the service life of the O-ring seal, the compression rate of the seal ring should not exceed 20%. Therefore, the selected seal ring wire diameter is 3.75mm within the recommended seal ring compression rate range.},
 year = {2021}
}

Copy | Download

TY  - JOUR
T1  - Analysis of Double Seat Seal of Ultra High Pressure Flat Gate Valve
AU  - Wei Junhui
AU  - Zhang Chuan
AU  - Jing Hongtao
AU  - Wang Wei
AU  - Tu Zhixiong
AU  - She Xiaomei
AU  - Zou Yan
Y1  - 2021/11/11
PY  - 2021
N1  - https://doi.org/10.11648/j.aas.20210604.16
DO  - 10.11648/j.aas.20210604.16
T2  - Advances in Applied Sciences
JF  - Advances in Applied Sciences
JO  - Advances in Applied Sciences
SP  - 110
EP  - 115
PB  - Science Publishing Group
SN  - 2575-1514
UR  - https://doi.org/10.11648/j.aas.20210604.16
AB  - As an important part of the Christmas tree, the sealing performance of the flat gate valve is very important, and the O-ring seal is the most commonly used seal in the flat gate valve. Therefore, the research on O-rings is particularly important. For the flat gate valve with a single gate, its structure has gradually developed from a single seat seal to a double seat seal. This article mainly analyzes the sealing principle of the double seat in the ultra-high pressure flat gate valve and the influence of the pre-tightening force of the sealing ring on the sealing effect. Using finite element analysis software, a two-dimensional axisymmetric model of the double valve seat sealing structure was established to study the non-metallic sealing performance of the valve seat. The Mises stress, the maximum contact stress of the sealing surface, and the contact area of the sealing surface of the O-ring seal under different compression ratios are analyzed. The results show that when only the sealing performance and pre-tightening force requirements are considered, an O-ring with a larger wire diameter should be selected as much as possible. When considering the service life of the O-ring seal, the compression rate of the seal ring should not exceed 20%. Therefore, the selected seal ring wire diameter is 3.75mm within the recommended seal ring compression rate range.
VL  - 6
IS  - 4
ER  -

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