Transient simulation and experiment validation on the opening and closing process of a ball valve

Han, Yong; Zhou, Lian; Liu, Bai; Xue, Peng; Lv, Wanning; Shi, Weidong; Huang, Gaoyang

doi:10.1016/j.net.2021.10.035

Cited by 5 publications

(1 citation statement)

References 15 publications

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“…(2010) used numerical simulation to obtain the transient start characteristics of the rapid opening of outlet valve of a centrifugal pump, the head fluctuation phenomenon under the rotor-stator interaction between the impeller and the volute is well predicted. Han et al . (2022) conducted a transient numerical simulation of the opening and closing process of a ball valve.…”

Section: Introductionmentioning

confidence: 99%

Hydraulic loss characteristics of closed-loop piping system during start-up process of mixed-flow pump

Li,

Huang,

et al. 2023

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PurposeThe purpose of this study is to explore the transient characteristics of mixed-flow pumps during startup process.Design/methodology/approachThis study uses a full-flow field transient calculation method of mixed-flow pump based on a closed-loop model.FindingsThe findings show the hydraulic losses and internal flow characteristics of the piping system during the start-up process.Research limitations/implicationsLarge computational cost.Practical implicationsImprove the accuracy of current numerical simulation results in transient process of mixed-flow pump.Originality/valueSimplify the setting of boundary conditions in the transient calculation.

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Section: Introductionmentioning

confidence: 99%

Hydraulic loss characteristics of closed-loop piping system during start-up process of mixed-flow pump

Li,

Huang,

et al. 2023

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Study on the design of ball valve based on elastic ring valve seat structure and fluid characteristics and fatigue strength

Wu²,

Chen³

et al. 2023

Flow Measurement and Instrumentation

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Damping Effect and Fluid Dynamic Analysis on Closing Process of Axial Flow Check Valve

Guan

Jin

et al. 2023

Journal of Fluids Engineering

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Axial flow check valve (AFCV) is widely used in piping systems because of its small flow resistance, low noise and good sealing performance. Its working performance directly affects the safety of the pump unit and the reliability of piping system. In the event that an accident occurs in piping systems, AFCV is closed to prevent backflow. However, rapid closing of the valve can cause the disc to exert a large impact load on the seat, which can affect the service life of the valve and the process safety of the system loop. Therefore, it is necessary to study the transient closing characteristics of AFCV with damping structure. The dynamic mesh technology is used to simulate the closing process of AFCV with different damping structures. The effects of the structures of damping devices as well as the diameter of damping holes on the dynamic motion, fluid force and damping characteristics are analyzed respectively. The results show that the damping structure with damping holes not only has better performance in slow closing and deceleration than the damping structure with annular gap but also reduces pressure fluctuation more effectively. The selection strategy of machining accuracy of damping holes is proposed. This work can provide a certain reference value for the design of AFCV in practical engineering, and it can also benefit safety and maintenance of piping system.

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Transient simulation and experiment validation on the opening and closing process of a ball valve

Cited by 5 publications

References 15 publications

Hydraulic loss characteristics of closed-loop piping system during start-up process of mixed-flow pump

Hydraulic loss characteristics of closed-loop piping system during start-up process of mixed-flow pump

Study on the design of ball valve based on elastic ring valve seat structure and fluid characteristics and fatigue strength

Damping Effect and Fluid Dynamic Analysis on Closing Process of Axial Flow Check Valve

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