Water hydraulics relief valves are essential components of hydraulic systems. These valves maintain the desired pressure and thereby prevent other components from being damaged. During operation of the relief valve, the water flow often cavitates in the valve port owing to the rapid decline in pressure, affecting the stability and safety of the hydraulic system. To improve relief valve performance, an optimal design of the valve was determined. Using a computational fluid dynamics approach, the effects of the valve core design and the nonsmooth groove structure of the valve seat on the jet flow structure were modeled and tested. The anti-cavitation structure was optimized parametrically, and the ideal valve port structure was determined. Tests were conducted to compare cavitation in the water hydraulics relief valve with and without the anti-cavitation structures. Results of these tests showed evident enhancement of cavitation performance.

References

References
1.
Xu
,
F.
, and
Zhang
,
L.
,
2012
, “
The Retrospects and Prospects of Pure Water Hydraulic Technology
,”
Appl. Mech. Mater.
,
201–202
, pp.
979
982
.
2.
He
,
X.
,
Zhao
,
D.
,
Sun
,
X.
, and
Zhu
,
B.
,
2017
, “
Theoretical and Experimental Research on a Three-Way Water Hydraulic Pressure Reducing Valve
,”
ASME J. Pressure Vessel Technol.
,
139
(
4
), p.
041601
.
3.
Han
,
M.
,
Liu
,
Y.
,
Wu
,
D.
,
Zhao
,
X.
, and
Tan
,
H.
,
2017
, “
A Numerical Investigation in Characteristics of Flow Force Under Cavitation State Inside the Water Hydraulic Poppet Valves
,”
Int. J. Heat Mass Transfer
,
111
, pp.
1
16
.
4.
Frunzaverde
,
D.
,
Ciubotariu
,
C. R.
,
Secosan
,
E. R.
,
Campian
,
C. V.
, and
Fanica
,
C.
,
2016
, “
Study on the Use of Elastomeric Coatings for Protection of Hydraulic Turbine Components Against Cavitation Erosion
,”
Mater. Plast.
,
53
(
3
), pp.
557
560
.http://www.revmaterialeplastice.ro/pdf/FRUNZAVERDED%203%2016.pdf
5.
Zhang
,
F.
,
Liu
,
H.
,
Xu
,
J.
, and
Tang
,
C.
,
2013
, “
Experimental Investigation on Noise of Cavitation Nozzle and Its Chaotic Behaviour
,”
Chin. J. Mech. Eng.
,
26
(
4
), pp.
758
762
.
6.
Kang
,
D.
, and
Yokota
,
K.
,
2014
, “
Analytical Study of Cavitation Surge in a Hydraulic System
,”
ASME J. Fluids Eng.
,
136
(
10
), p.
101103
.
7.
Shi
,
W.
,
Cao
,
S.
,
Luo
,
X.
,
Zhang
,
Z.
, and
Zhu
,
Y.
,
2017
, “
Experimental Research on the Cavitation Suppression in the Water Hydraulic Throttle Valve
,”
ASME J. Pressure Vessel Technol.
,
139
(
5
), p.
051302
.
8.
Luo
,
X.
,
Wei
,
W.
,
Ji
,
B.
,
Pan
,
Z.
,
Zhou
,
W.
, and
Xu
,
H.
,
2013
, “
Comparison of Cavitation Prediction for a Centrifugal Pump With or Without Volute Casing
,”
J. Mech. Sci. Technol.
,
27
(
6
), pp.
1643
1648
.
9.
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
.
10.
Shen
,
W.
,
Zhang
,
J.
,
Sun
,
Y.
,
Zhang
,
D.-J.
, and
Jiang
,
J.-h.
,
2016
, “
Effect of Cavitation Bubble Collapse on Hydraulic Oil Temperature
,”
J. Central South Univ.
,
23
(
7
), pp.
1657
1668.
11.
Jablonska
,
J.
,
Kozubkova
,
M.
,
Himr
,
D.
, and
Weisz
,
M.
,
2016
, “
Methods of Experimental Investigation of Cavitation in a Convergent—Divergent Nozzle of Rectangular Cross Section
,”
Meas. Sci. Rev.
,
16
(
4
), pp.
197
204.
12.
Yi
,
D.
,
Lu
,
L.
,
Zou
,
J.
, and
Fu
,
X.
,
2015
, “
Interactions Between Poppet Vibration and Cavitation in Relief Valve
,”
Proc. Inst. Mech. Eng. Part C
,
229
(
8
), pp.
1447
1461
.
13.
Zhao
,
G.
,
Zhao
,
H.
,
Shu
,
H.
, and
Zhao
,
D.
,
2010
, “
Simulation Study of Bionic Jetting Direction Influence on Drag Reduction Effect
,”
Adv. Nat. Sci.
,
3
(
2
), pp.
17
26
.
14.
Han
,
Z.
,
Yin
,
W.
,
Zhang
,
J.
,
Jiang
,
J.
,
Niu
,
S.
, and
Ren
,
L.
,
2013
, “
Erosion-Resistant Surfaces Inspired by Tamarisk
,”
J. Bionic Eng.
,
10
(
4
), pp.
479
487
.
15.
Knopp
,
T.
,
Alrutz
,
T.
, and
Schwamborn
,
D.
,
2006
, “
A Grid and Flow Adaptive Wall-Function Method for Rans Turbulence Modelling
,”
J. Comput. Phys.
,
220
(
1
), pp.
19
40
.
16.
Xue
,
X.
,
Yu
,
Y.
, and
Zhang
,
Q.
,
2014
, “
Study on the Effect of Distance Between the Two Nozzle Holes on Interaction of High Pressure Combustion-Gas Jets With Liquid
,”
Energy Convers. Manage.
,
85
, pp.
675
686
.
You do not currently have access to this content.