Effects of throttling windows on cavitation flow of sleeve control valve

Qian, Jin-yuan; Xu, Jia-xiang; Li, Fang; Zhao, Lei; Wu, Jiayi; Jin, Zhi-jiang

doi:10.1016/j.anucene.2023.109841

Cited by 13 publications

(2 citation statements)

References 23 publications

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“…Guan et al observed that increasing the inclination of the flow channel can improve the reduction of cavitation intensity [13]. Han et al found that different forms of throttles cause different degrees of cavitation [14,15]. Wei et al found that perforated plate valves provide effective noise reduction [16].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Valve Seat Cone Angle on Small Opening Direct-Acting Relief Valve Cavitation Noise

Qiu,

Yang,

Zhang

et al. 2024

Machines

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Direct-acting relief valves are important pressure-control components in hydraulic systems; however, noise problems are now common. This study aimed to reduce and numerically analyze the valve cavitation and noise using the Zwart–Gerber–Belamri (ZBG) model with the Ffowcs Williams and Hawkings (FW–H) model to optimize the design based on the sound field perspective. First, a direct-acting relief valve flow field model was established to determine the relationship between the seat structure and the degree of cavitation through a CFD (Computational Fluid Dynamics) simulation. Second, sound field analysis was conducted based on the cavitation and non-cavitation flow fields, respectively, and the resulting noise levels were compared. Finally, prototypes of the relief valve were manufactured, and noise levels between the original and optimized valves were compared. The results revealed that cavitation within the relief valve generated noise while optimizing the valve seat cone angle suppressed this phenomenon, thereby reducing the noise emitted by the optimized valve by 18.2 dB compared to the original valve. These findings can serve as a guide for designing and optimizing direct-acting relief valves.

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Section: Introductionmentioning

confidence: 99%

Investigation of Valve Seat Cone Angle on Small Opening Direct-Acting Relief Valve Cavitation Noise

Qiu,

Yang,

Zhang

et al. 2024

Machines

View full text Add to dashboard Cite

show abstract

“…When the local pressure underwater is less than the vapor pressure, bubbles spill out of the water and cavitation occurs [2] , [3] , [4] , [5] . According to the generalized Bernoulli principle (where the flow velocity is high, the pressure is low), in engineering practice, this phenomenon mostly occurs in areas where water flows at a high speed, such as underwater propellers [6] , [7] , ship rudders [8] , water pumps [9] , [10] , valves [11] , [12] , right-angle pipes [13] , etc. Cavitation bubbles underwater undergo the process of bubble generation, expansion, contraction, collapse, and rebound [14] .…”

Section: Introductionmentioning

confidence: 99%