Pilot-control globe valve (PCGV) can use the pressure drop caused by fluid flowing through the orifice located at valve core bottom to open or close the main valve using a small pilot valve. In this paper, computational fluid dynamics (CFD) method is adopted to analyze the pressure drop before and after valve core of PCGV and minor loss of orifice under different structural parameters and inlet velocities, and the simulation results show a good agreement with the experimental results. It turns out that the valve diameters, orifice diameters, and pilot pipe diameters have great influences on the pressure drop and the loss coefficient. Moreover, an expression is proposed which can be used to calculate minor loss coefficient, then to estimate the pressure drop and driving force of a PCGV within limited conditions. This paper can be referenced as guidance for deciding the dimension of structural parameters and spring stiffness during design process of a PCGV.

References

References
1.
Qian
,
J.
,
Wei
,
L.
,
Jin
,
Z.
,
Wang
,
J.
,
Zhang
,
H.
, and
Lu
,
A.
,
2014
, “
CFD Analysis on the Dynamic Flow Characteristics of the Pilot-Control Globe Valve
,”
Energy Convers. Manage.
,
87
, pp.
220
226
.
2.
Qian
,
J. Y.
,
Zhang
,
H.
,
Wang
,
J. K.
,
Lu
,
A. L.
, and
Jin
,
Z. J.
,
2013
, “
Research on the Optimal Design of a Pilot Valve Controlling Cut-Off Valve
,”
Appl. Mech. Mater.
,
331
, pp.
65
69
.
3.
Alimonti
,
C
.,
2014
, “
Experimental Characterization of Globe and Gate Valves in Vertical Gas–Liquid Flows
,”
Exp. Therm. Fluid Sci.
,
54
, pp.
259
266
.
4.
Pietrzak
,
M.
, and
Witczak
,
S.
,
2015
, “
Experimental Study of Air–Oil–Water Flow in a Balancing Valve
,”
J. Pet. Sci. Eng.
,
133
, pp.
12
17
.
5.
Sibilla
,
S.
, and
Gallati
,
M.
,
2008
, “
Hydrodynamic Characterization of a Nozzle Check Valve by Numerical Simulation
,”
ASME J. Fluids Eng.
,
130
(
12
), p.
121101
.
6.
Wu
,
D.
,
Li
,
S.
, and
Wu
,
P.
,
2015
, “
CFD Simulation of Flow-Pressure Characteristics of a Pressure Control Valve for Automotive Fuel Supply System
,”
Energy Convers. Manage.
,
101
, pp.
658
665
.
7.
Lin
,
Z.
,
Wang
,
H.
,
Shang
,
Z.
,
Cui
,
B.
,
Zhu
,
C.
, and
Zhu
,
Z.
,
2015
, “
Effect of Cone Angle on the Hydraulic Characteristics of Globe Control Valve
,”
Chin. J. Mech. Eng.
,
28
(
3
), pp.
641
648
.
8.
Saha
,
B. K.
,
Gangopadhyay
,
T.
, and
Sanyal
,
D.
,
2016
, “
Pilot-Dynamics Coupled Finite-Volume Analysis of Main Flow Transients Through a Pneumatic Pressure-Regulating Valve
,”
ASME J. Dyn. Syst. Meas. Control
,
138
(
2
), p.
021008
.
9.
Ye
,
Y.
,
Yin
,
C.-B.
,
Li
,
X.-D.
,
Zhou
,
W.
, and
Yuan
,
F.
,
2014
, “
Effects of Groove Shape of Notch on the Flow Characteristics of Spool Valve
,”
Energy Convers. Manage.
,
86
, pp.
1091
1101
.
10.
Edvardsen
,
S.
,
Dorao
,
C. A.
, and
Nydal
,
O. J.
,
2015
, “
Experimental and Numerical Study of Single-Phase Pressure Drop in Downhole Shut-In Valve
,”
J. Nat. Gas Sci. Eng.
,
22
, pp.
214
226
.
11.
Davis
,
J. A.
, and
Stewart
,
M.
,
2002
, “
Predicting Globe Control Valve Performance—Part I: CFD Modeling
,”
ASME J. Fluids Eng.
,
124
(
3
), pp.
772
777
.
12.
Lee
,
G. S.
,
Sung
,
H. J.
, and
Kim
,
H. C.
,
2013
, “
Multiphysics Analysis of a Linear Control Solenoid Valve
,”
ASME J. Fluids Eng.
,
135
(
1
), p.
011104
.
13.
Frosina
,
E.
,
Senatore
,
A.
,
Buono
,
D.
, and
Stelson
,
K. A.
,
2016
, “
A Mathematical Model to Analyze the Torque Caused by Fluid–Solid Interaction on a Hydraulic Valve
,”
ASME J. Fluids Eng.
,
138
(
6
), p.
061103
.
14.
Lisowski
,
E.
,
Czyżycki
,
W.
, and
Rajda
,
J.
,
2013
, “
Three Dimensional CFD Analysis and Experimental Test of Flow Force Acting on the Spool of Solenoid Operated Directional Control Valve
,”
Energy Convers. Manage.
,
70
, pp.
220
229
.
15.
Qian
,
J.
,
Liu
,
B.
,
Jin
,
Z.
,
Wang
,
J.
,
Zhang
,
H.
, and
Lu
,
A.
,
2016
, “
Numerical Analysis of Flow and Cavitation Characteristics in a Pilot-Control Globe Valve With Different Valve Core Displacements
,”
J. Zhejiang Univ., Sci. A
,
17
(
1
), pp.
54
64
.
16.
Amirante
,
R.
,
Distaso
,
E.
, and
Tamburrano
,
P.
,
2014
, “
Experimental and Numerical Analysis of Cavitation in Hydraulic Proportional Directional Valves
,”
Energy Convers. Manage.
,
87
, pp.
208
219
.
17.
Kang
,
S.
,
Kim
,
D.-E.
,
Kim
,
K.-K.
, and
Kim
,
J.-O.
,
2014
, “
Effect Analysis of Design Variables on the Disc in a Double-Eccentric Butterfly Valve
,”
Sci. World J.
,
2014
, p.
305085
.
18.
Jin
,
Z.
,
Wei
,
L.
,
Chen
,
L.
,
Qian
,
J.
, and
Zhang
,
M.
,
2013
, “
Numerical Simulation and Structure Improvement of Double Throttling in a High Parameter Pressure Reducing Valve
,”
J. Zhejiang Univ., Sci. A
,
14
(
2
), pp.
137
146
.
19.
Simic
,
M.
, and
Herakovic
,
N.
,
2015
, “
Reduction of the Flow Forces in a Small Hydraulic Seat Valve as Alternative Approach to Improve the Valve Characteristics
,”
Energy Convers. Manage.
,
89
, pp.
708
718
.
20.
Long
,
C.
, and
Guan
,
J.
,
2011
, “
A Method for Determining Valve Coefficient and Resistance Coefficient for Predicting Gas Flowrate
,”
Exp. Therm. Fluid Sci.
,
35
(
6
), pp.
1162
1168
.
21.
Chern
,
M.-J.
, and
Wang
,
C.-C.
,
2004
, “
Control of Volumetric Flow-Rate of Ball Valve Using V-Port
,”
ASME J. Fluids Eng.
,
126
(
3
), pp.
471
481
.
22.
Tabrizi
,
A. S.
,
Asadi
,
M.
,
Xie
,
G.
,
Lorenzini
,
G.
, and
Biserni
,
C.
,
2014
, “
Computational Fluid-Dynamics-Based Analysis of a Ball Valve Performance in the Presence of Cavitation
,”
J. Eng. Thermophys.
,
23
(
1
), pp.
27
38
.
23.
Del Toro
,
A.
,
Johnson
,
M. C.
, and
Spall
,
R. E.
,
2015
, “
Computational Fluid Dynamics Investigation of Butterfly Valve Performance Factors
,”
J. Am. Water Works Assoc.
,
107
(
5
), pp.
E243
E254
.
24.
Launder
,
B. E.
, and
Spalding
,
D. B.
,
1972
,
Lectures in Mathematical Models of Turbulence
,
Academic Press
,
London
.
25.
Yakhot
,
V.
, and
Orszag
,
S. A.
,
1986
, “
Renormalization Group Analysis of Turbulence—I: Basic Theory
,”
J. Sci. Comput.
,
1
(
1
), pp.
3
51
.
26.
Choudhury
,
D.
,
1993
, “
Introduction to the Renormalization Group Method and Turbulence Modeling
,” Fluent Inc., Lebanon, NH, Technical Report No. TM-107.
27.
Wang
,
L.
,
Cui
,
J.
, and
Yao
,
K.
,
2008
, “
Numerical Simulation and Analysis of Gas Flow Field in Serrated Valve Column
,”
Chin. J. Chem. Eng.
,
16
(
4
), pp.
541
546
.
28.
Launder
,
B. E.
, and
Spalding
,
D. B.
,
1974
, “
The Numerical Computation of Turbulent Flows
,”
Comput. Methods Appl. Mech. Eng.
,
3
(
2
), pp.
269
289
.
29.
Munson
,
B. R.
,
Okiishi
,
T. H.
,
Huebsch
,
W. W.
, and
Rothmayer
,
A. P.
,
2013
,
Fundamentals of Fluid Mechanics
,
7th ed.
,
Wiley
,
New York
, Chap. 8.
You do not currently have access to this content.