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Computational fluid dynamics analysis on orifice structure inside valve core of pilot-control angle globe valve

Jin, Zhi Jiang; Gao, Zhi Xin; Zhang, Ming; Liu, Bu Zhan and Qian, Jin Yuan LU (2018) In Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 232(13). p.2419-2429
Abstract

A novel pilot-control angle globe valve is proposed, and it has an obvious advantage of energy conservation during its opening and closing process. In pilot-control angle globe valve, the opening and closing forces are related to the orifice located inside the valve core. In this paper, the effects of orifice diameter are thoroughly studied under different working conditions such as valve core displacements and inlet velocities. To begin with, the numerical model is validated by comparing similar angle valves, and then the flow and loss coefficients under different orifice diameters are discussed. It is found that the effects of orifice diameter on force acting on valve core depend on valve core displacement and inlet velocity. Thus... (More)

A novel pilot-control angle globe valve is proposed, and it has an obvious advantage of energy conservation during its opening and closing process. In pilot-control angle globe valve, the opening and closing forces are related to the orifice located inside the valve core. In this paper, the effects of orifice diameter are thoroughly studied under different working conditions such as valve core displacements and inlet velocities. To begin with, the numerical model is validated by comparing similar angle valves, and then the flow and loss coefficients under different orifice diameters are discussed. It is found that the effects of orifice diameter on force acting on valve core depend on valve core displacement and inlet velocity. Thus different valve core displacements and inlet velocities combined with different orifice diameters are further studied. It is also found that when the orifice diameter is larger than 12 mm, pilot-control angle globe valve cannot be used under small inlet velocity or large valve core displacement. In addition, formulas to calculate forces on valve core are proposed for further orifice design. This work can be referred in process industries especially in a piping system with orifice plates or globe valves.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Computational fluid dynamics, inlet velocity, loss coefficient, orifice, pilot-control angle globe valve, valve core displacement
in
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
volume
232
issue
13
pages
2419 - 2429
publisher
Professional Engineering Publishing
external identifiers
  • scopus:85045438940
ISSN
0954-4062
DOI
10.1177/0954406217721257
language
English
LU publication?
yes
id
32955a51-9b41-4a3a-a1f0-21489594e676
date added to LUP
2018-04-23 15:06:52
date last changed
2019-03-19 03:53:33
@article{32955a51-9b41-4a3a-a1f0-21489594e676,
  abstract     = {<p>A novel pilot-control angle globe valve is proposed, and it has an obvious advantage of energy conservation during its opening and closing process. In pilot-control angle globe valve, the opening and closing forces are related to the orifice located inside the valve core. In this paper, the effects of orifice diameter are thoroughly studied under different working conditions such as valve core displacements and inlet velocities. To begin with, the numerical model is validated by comparing similar angle valves, and then the flow and loss coefficients under different orifice diameters are discussed. It is found that the effects of orifice diameter on force acting on valve core depend on valve core displacement and inlet velocity. Thus different valve core displacements and inlet velocities combined with different orifice diameters are further studied. It is also found that when the orifice diameter is larger than 12 mm, pilot-control angle globe valve cannot be used under small inlet velocity or large valve core displacement. In addition, formulas to calculate forces on valve core are proposed for further orifice design. This work can be referred in process industries especially in a piping system with orifice plates or globe valves.</p>},
  author       = {Jin, Zhi Jiang and Gao, Zhi Xin and Zhang, Ming and Liu, Bu Zhan and Qian, Jin Yuan},
  issn         = {0954-4062},
  keyword      = {Computational fluid dynamics,inlet velocity,loss coefficient,orifice,pilot-control angle globe valve,valve core displacement},
  language     = {eng},
  number       = {13},
  pages        = {2419--2429},
  publisher    = {Professional Engineering Publishing},
  series       = {Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science},
  title        = {Computational fluid dynamics analysis on orifice structure inside valve core of pilot-control angle globe valve},
  url          = {http://dx.doi.org/10.1177/0954406217721257},
  volume       = {232},
  year         = {2018},
}