Experimental and numerical investigation of flow forces in a seat valve using a damping sleeve with orifices

Zhang, Junhui; Wang, Di; Xu, Bing; Gan, Minyao; Pan, Min; Yang, Huayong

doi:10.1631/jzus.a1700164

Cited by 35 publications

(13 citation statements)

References 23 publications

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“…Zhang et al. 35 proposed a damping sleeve with orifices. They optimized the internal structure of the on–off valve to reduce the axial flow forces on the spool and improved the opening speed of the valve.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the modeling and dynamic characteristics of a fast-response and large-flow water hydraulic proportional cartridge valve

Han

Liu

Zheng

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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In large-power and high-pressure hydraulic systems, the maximum instantaneous flow rate is often several thousand liters per minute. Normal proportional valves are often difficult to meet their requirements for large flow rate and fast response at the same time. And the leakage of hydraulic oil will seriously pollute the environment. Therefore, a novel water hydraulic proportional valve with fast response and high flow capacity is presented for the large transient power hydraulic system in this paper. The valve utilizes a two-stage structure with two 2/2-way water hydraulic proportional valves as the pilot stage and a cartridge poppet valve as the main stage to achieve fast-response and large-flow capacity simultaneously. A detailed and precise nonlinear mathematical model of the valve considering both structural parameters and flow force is developed. A comprehensive performance optimization has been carried out, which can be mainly divided into computational fluid dynamics simulation optimization based on reducing flow force and multi-objective optimization based on genetic algorithm. The effects of double U-grooves' parameters on the flow force (flow-induced loads) have been studied in detail by numerical simulation. Through the grooves geometry optimization, the maximum flow force can be reduced by 10%. Then, the influences of structure parameters on the performance of step response have been studied, and the optimal parameters of the valve have been obtained by multi-objective optimization based on genetic algorithm. The maximum overshoot has been reduced from 15% to 6% (about 60%) and the adjusting time has been reduced from 58 ms to 48 ms. The dynamic characteristics of the valve have been improved effectively. Finally, a test apparatus which has the ability to provide transient large flow is built. The accuracy of simulation model and optimization design method is verified by test results.

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Section: Introductionmentioning

confidence: 99%

Investigation on the modeling and dynamic characteristics of a fast-response and large-flow water hydraulic proportional cartridge valve

Han

Liu

Zheng

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

show abstract

“…When the microvalve is working condition, the deformation of the membrane is closely related to the flow characteristics in the microvalve. Computational fluid dynamics and experimental methods are often adopted to analyze flow characteristics in valves [ 17 , 18 ]. Moreover, some researchers performed experimental or FSI analysis to investigate the flow characteristics and membrane behavior against fluid flow of the microvalves.…”

Section: Introductionmentioning

confidence: 99%

Fluid-Structure Interaction Analysis on Membrane Behavior of a Microfluidic Passive Valve

Lin

Jin

2020

Membranes

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In this paper, the effect of membrane features on flow characteristics in the microfluidic passive valve (MPV) and the membrane behavior against fluid flow are studied using the fluid-structure interaction (FSI) analysis. Firstly, the microvalve model with different numbers of microholes and pitches of microholes are designed to investigate the flow rate of the MPV. The result shows that the number of microholes on the membrane has a significant impact on the flow rate of the MPV, while the pitch of microholes has little effect on it. The constant flow rate maintained by the microvalve (the number of microholes n = 4) is 5.75 mL/min, and the threshold pressure to achieve the flow rate is 4 kPa. Secondly, the behavior of the membrane against the fluid flow is analyzed. The result shows that as the inlet pressure increases, the flow resistance of the MPV increases rapidly, and the deformation of the membrane gradually becomes stable. Finally, the effect of the membrane material on the flow rate and the deformation of the membrane are studied. The result shows that changes in the material properties of the membrane cause a decrease in the amount of deformation in all stages the all positions of the membrane. This work may provide valuable guidance for the optimization of microfluidic passive valve in microfluidic system.

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“…Knutson and Van De Ven [14] experimentally and numerically investigated the reed valves. Zhang et al [15] focused on the flow force acting on the valve seat. Besides, Jin et al [16] and Qian et al [17,18] applied the Tesla valve, which is a new type of check valve, in hydrogen decompression, and the valve noise and the effects of valve stage on valve performance were investigated.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Swing and Tilting Check Valves Flowing Compressible Fluids

Gao

Liu²,

Yang³

et al. 2020

Micromachines

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Although check valves have attracted a lot of attention, work has rarely been completed done when there is a compressible working fluid. In this paper, the swing check valve and the tilting check valve flowing high-temperature compressible water vapor are compared. The maximum Mach number under small valve openings, the dynamic opening time, and the hydrodynamic moment acting on the valve disc are chosen to evaluate the difference between the two types of check valves. Results show that the maximum Mach number increases with the decrease in the valve opening and the increase in the mass flow rate, and the Mach number and the pressure difference in the tilting check valve are higher. In the swing check valve, the hydrodynamic moment is higher and the valve opening time is shorter. Furthermore, the valve disc is more stable for the swing check valve, and there is a periodical oscillation of the valve disc in the tilting check valve under a small mass flow rate.

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Experimental and numerical investigation of flow forces in a seat valve using a damping sleeve with orifices

Cited by 35 publications

References 23 publications

Investigation on the modeling and dynamic characteristics of a fast-response and large-flow water hydraulic proportional cartridge valve

Investigation on the modeling and dynamic characteristics of a fast-response and large-flow water hydraulic proportional cartridge valve

Fluid-Structure Interaction Analysis on Membrane Behavior of a Microfluidic Passive Valve

Comparison of Swing and Tilting Check Valves Flowing Compressible Fluids

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