Design of pneumatic proportional flow valve type 5/3

Łaski, P.; Pietrala, Dawid; Zwierzchowski, Jaroslaw; Czarnogorski, K

doi:10.1088/1757-899x/233/1/012029

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…It allows integrated analysis of the flow field and the heat transfer and has shown its strength in fluid simulations. It was proved that the flow and pressure results obtained from the software were in good agreement with those from experiments when it was applied to the design of the pneumatic proportional flow valve [21]. To simulate the real conditions for high-temperature steam, the 3D model was adopted and heat transfers were allowed.…”

Section: Mathematical Modelmentioning

confidence: 87%

Numerical analysis of flow field in link rod butterfly valve for high-temperature steam

Kan

Chen

2020

J Braz. Soc. Mech. Sci. Eng.

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The link rod butterfly valve, which uses a four-bar linkage mechanism to drive the valve plate, is a promising candidate for treating high-temperature steam and industrial exhaust because of its reliable sealing property. In this paper, the 3D flow field in the link rod butterfly valve for high-temperature steam was simulated using computational fluid dynamics. The flow coefficient of the valve, the velocity field, the temperature distribution and the enthalpy change in the steam under different valve openings were studied. The results showed that the flow coefficient of the link rod butterfly valve increased with an accelerated slope as the rotation angle of the valve stem was enlarged over 60°. The velocity and the vorticity of the steam were dramatically increased near the valve. The steam branches were accelerated up to 15 times the inlet flow velocity when they passed through the gaps between the valve plate and the valve body, and the vorticity was as large as 76/s. The temperature of the steam passing through the valve was decreased by 50-108 K for different openings. The temperature difference in the steam on the valve plate was as high as 400 K, which makes a challenge for the material of the valve plate. Larger enthalpy drop of the steam was resulted in when the valve was working at the throttling state than fully opened. Local peaks for the enthalpy drop were observed as the valve stem was rotated by 30° and 60°, and the local valley was at about 50°. The present study may serve as a useful reference for the design of link rod butterfly valves.

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Section: Mathematical Modelmentioning

confidence: 87%

Numerical analysis of flow field in link rod butterfly valve for high-temperature steam

Kan

Chen

2020

J Braz. Soc. Mech. Sci. Eng.

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“…(Rodrigo et al, 2017). When the control voltage of the valve remains stable, the proportional valve is not affected by the air source pressure and can keep the output gas pressure unchanged (Laski et al, 2017). It is difficult to obtain the accurate mathematical model because of the influence of the dynamic shrinkage of air and other factors.…”

Section: Pressure-flow Characteristics Of Electric Proportional Valvementioning

confidence: 99%

Dynamic surface control of bellows-driven ultra-precision positioning system based on nonlinear extended state observer

Tian

Zhu

Zheng

2019

JAMDSM

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“…It can be seen that the current research on fow valves can be divided into multiple directions, such as low power consumption, high-frequency response, long life, microfow and large fow, modularization, and integration. Summarizing its research content, there are mainly two aspects [16][17][18]. On the one hand, it is the research of the electromechanical converter and its drive circuit; on the other hand, it is the optimization design of the valve core and valve body structure [19].…”

Section: Introductionmentioning

confidence: 99%

Finite Element Modeling and Optimal Design of an Electromagnetic Pneumatic Flow Servo Valve

Zedan

Guo²,

Zhu

et al. 2023

Mathematical Problems in Engineering

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The electromagnet pneumatic proportional servo valve is widely used in industrial automation, medical equipment, scientific composition detectors, and other fields that require precise adjustment of high-pressure air flow due to its simple working structure, large output power, large working frequency response, and good control performance. However, the output pressure of the valve is small, making it vulnerable to the impact of the external environment. Based on the practical electromagnet-type pneumatic proportional servo valve, this paper establishes a finite element dynamic mathematical model, conducts finite element analysis on the electromagnet magnetic field in the valve, then improves the structural parameters of the original proportional valve through the analysis of the valve performance parameters and structural optimization, and finally, the physical experiment proves that the optimized electric proportional valve can effectively reduce the hysteresis within the working pressure range and has good response characteristics to step signals. This paper can provide support for performance analysis and structural parameter improvement of the electric proportional valve.

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Design of pneumatic proportional flow valve type 5/3

Cited by 3 publications

References 2 publications

Numerical analysis of flow field in link rod butterfly valve for high-temperature steam

Numerical analysis of flow field in link rod butterfly valve for high-temperature steam

Dynamic surface control of bellows-driven ultra-precision positioning system based on nonlinear extended state observer

Finite Element Modeling and Optimal Design of an Electromagnetic Pneumatic Flow Servo Valve

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