Erosion of an Arrow-Type Check Valve Duo to Liquid–Solid Flow Based on Computational Fluid Dynamics

Zhang, Xiaodong; Chen, Yongsen; Yang, Wenwu

doi:10.1007/s11668-019-00632-y

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…Many researchers used computational fluid dynamics (CFD) software to simulate the flow field of a spool valve. 1–6 Wang 7 performed a dynamic simulation for the internal flow field of the butterfly valve, and obtained the dynamic water moment of the valve. Song and Luo 8 used the STRA-CCM+ to numerically simulate the internal viscous flow in a pneumatic valve of a steam turbine.…”

Section: Introductionmentioning

confidence: 99%

Numerical study on sealing performance after wear of plug valve during opening–closing process

Lu,

Zhu,

2023

Proceedings of the Institution of Mechanical Engineers, Part J:

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The failure of the plug valve seal may result in dangerous accidents in the production and transportation process of petroleum and chemical products. In the paper at hand, the operating life of the plug valve is studied in the opening–closing process. The adhesion wear between the sealing surface of the plug valve is numerically studied in micro-scale, and the contact force between the sealing surface is balanced with the internal flow field of the plug valve and the deformation force between the set screw and the spool. The internal flow field of the plug valve in opening–closing process is calculated by finite element method. The deformation coupling model between the set screw and the spool is built to analyze the structure and the mechanics of the plug valve. Then, a leakage identification algorithm based on auto-correlation function is implemented for analyzing contact stress of the plug valve's sealing surfaces after wear. Finally, taking plug valve F-2 ISO-STANDARD as an example, the force of turbulent flow field on the spool is calculated during the closing process. Results show, that while the maximum contact stress increases, the pressure decreases, and the displacement trajectory of spool increases. The operating life decreases by increasing the roughness of the spool sealing surface. The model proposed provides a new practical method to evaluate the operating life of the plug valve, which is a good guidance for the design of the valve.

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Section: Introductionmentioning

confidence: 99%

Numerical study on sealing performance after wear of plug valve during opening–closing process

Lu,

Zhu,

2023

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…The relevant erosion equations built by fitting the data were used to obtain the erosion distribution in a CFD-based simulation. Further, on the basis of Harsha's angle function, a case of the check valve was discussed in detail [11], giving the erosion rates at different flow velocities, particle sizes, valve openings and particle mass rates. However, these valves functioned by fluid throttling rather than jets.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Erosion Wear in the Hydraulic Amplifier of the Deflector Jet Servo Valve

Yan

Cai³

et al. 2020

Applied Sciences

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Although possessing a remarkable anti-contamination capacity, the deflector jet valve is still confronted with erosion wear brought by solid particles in hydraulic oil. To describe the erosion wear mechanism in the hydraulic amplifier of servo valves, a RANS-based CFD simulation is conducted to obtain its internal wear distribution following the Oka erosion model, which shows the erosion wear in servo valves can be divided into four levels and the major wear happens on the shunt wedge, characterized by a regular and fluctuant distribution. Further, there exist multiple relative maximums of erosion rates, whose locations deviate from the jet center. On this basis, the correlation between the contamination level of hydraulic oil and the degree of erosion wear is established. Moreover, according to the working mechanism of the hydraulic amplifier, a new failure criterion of the deflector jet valve is proposed to carry out valve lifespan analyses. Then, a lifespan prediction formula is obtained, and calculations show that hydraulic oil must have a contamination level superior to NAS 5 if a lifespan of over 20,000 h is expected.

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Research on the Erosion Performance of a New Normally Open Arrow-Type Check Valve Spool

et al. 2022

J Fail. Anal. and Preven.

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Erosion of an Arrow-Type Check Valve Duo to Liquid–Solid Flow Based on Computational Fluid Dynamics

Cited by 3 publications

References 9 publications

Numerical study on sealing performance after wear of plug valve during opening–closing process

Numerical study on sealing performance after wear of plug valve during opening–closing process

Numerical Investigation of Erosion Wear in the Hydraulic Amplifier of the Deflector Jet Servo Valve

Research on the Erosion Performance of a New Normally Open Arrow-Type Check Valve Spool

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