Transient simulation of valve core movement of pilot-control globe valve in vertical pipelines
Qian, Jinyuan LU
; Zhu, Yinfa
; Liu, Buzhan
; Lu, Anle
and Jin, Zhijiang
(2016)
In Paiguan Jixie Gongcheng Xuebao/Journal of Drainage and Irrigation Machinery Engineering
34(1).
p.51-65
- Abstract
A novel pilot-control globe valve, which can be used in vertical pipelines with a lower driving energy consumption, is proposed. A governing equation for valve core motion is obtained through a theoretical analysis of the forces applied on the valve core. A 3D simulation of valve core motion is conducted in Fluent by using User Defined Function (UDF) to involve different spring stiffness, steady state displacements, impact speeds and transient state displacements. The results show that there are different opening modes for different spring stiffness. For smaller spring stiffness, the valve is subject to a quicker response to flow to ensure it can work properly; however, this can more easily result in a higher impact speed. With the... (More)
A novel pilot-control globe valve, which can be used in vertical pipelines with a lower driving energy consumption, is proposed. A governing equation for valve core motion is obtained through a theoretical analysis of the forces applied on the valve core. A 3D simulation of valve core motion is conducted in Fluent by using User Defined Function (UDF) to involve different spring stiffness, steady state displacements, impact speeds and transient state displacements. The results show that there are different opening modes for different spring stiffness. For smaller spring stiffness, the valve is subject to a quicker response to flow to ensure it can work properly; however, this can more easily result in a higher impact speed. With the increasing of spring stiffness, the steady displacement of the core reduces especially beyond a turning point. Besides, the numerical transient displacements with 0.9 and 1.1 times the spring stiffness show good agreement with those obtained from a theoretical analysis. It is found out that the real spring design point should have 0.9 times the spring stiffness determined by the theoretical analysis. This paper provides a reference for designing and application of pilot-control globe valves or other valves with similar structures.
(Less)
- author
- Qian, Jinyuan
LU
; Zhu, Yinfa
; Liu, Buzhan
; Lu, Anle
and Jin, Zhijiang
- publishing date
- 2016-01-28
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Pilot-control globe valve, Spring stiffness, Transient simulation, Valve core movement, Vertical pipeline
- in
- Paiguan Jixie Gongcheng Xuebao/Journal of Drainage and Irrigation Machinery Engineering
- volume
- 34
- issue
- 1
- pages
- 6 pages
- publisher
- Editorial Department of Drainage and Irrigation Machinery Engineering
- external identifiers
-
- scopus:84961839185
- ISSN
- 1674-8530
- DOI
- 10.3969/j.issn.1674-8530.15.0206
- language
- English
- LU publication?
- no
- id
- 4cb17e09-de08-476f-a209-96888838bc47
- date added to LUP
- 2016-11-11 17:10:23
- date last changed
- 2022-04-11 12:39:01
@article{4cb17e09-de08-476f-a209-96888838bc47,
abstract = {{<p>A novel pilot-control globe valve, which can be used in vertical pipelines with a lower driving energy consumption, is proposed. A governing equation for valve core motion is obtained through a theoretical analysis of the forces applied on the valve core. A 3D simulation of valve core motion is conducted in Fluent by using User Defined Function (UDF) to involve different spring stiffness, steady state displacements, impact speeds and transient state displacements. The results show that there are different opening modes for different spring stiffness. For smaller spring stiffness, the valve is subject to a quicker response to flow to ensure it can work properly; however, this can more easily result in a higher impact speed. With the increasing of spring stiffness, the steady displacement of the core reduces especially beyond a turning point. Besides, the numerical transient displacements with 0.9 and 1.1 times the spring stiffness show good agreement with those obtained from a theoretical analysis. It is found out that the real spring design point should have 0.9 times the spring stiffness determined by the theoretical analysis. This paper provides a reference for designing and application of pilot-control globe valves or other valves with similar structures.</p>}},
author = {{Qian, Jinyuan and Zhu, Yinfa and Liu, Buzhan and Lu, Anle and Jin, Zhijiang}},
issn = {{1674-8530}},
keywords = {{Pilot-control globe valve; Spring stiffness; Transient simulation; Valve core movement; Vertical pipeline}},
language = {{eng}},
month = {{01}},
number = {{1}},
pages = {{51--65}},
publisher = {{Editorial Department of Drainage and Irrigation Machinery Engineering}},
series = {{Paiguan Jixie Gongcheng Xuebao/Journal of Drainage and Irrigation Machinery Engineering}},
title = {{Transient simulation of valve core movement of pilot-control globe valve in vertical pipelines}},
url = {{http://dx.doi.org/10.3969/j.issn.1674-8530.15.0206}},
doi = {{10.3969/j.issn.1674-8530.15.0206}},
volume = {{34}},
year = {{2016}},
}