Abstract
Proportional control valves are characterized by smooth opening of flow channels by means of the spool control. At the initial stage of opening, the flow gap is of a small cross-section which then gradually expands. This enables smoother start-up of a device as well as more precise control of the working motion compared to conventional control valves. Among the electromagnetically controlled proportional control valves, some complex solutions equipped with spool displacement transducers, compensating valves, advanced electronics, etc. can be distinguished. This allows compensation for the harmful effects of flow-related forces.
The article presents the results of flow tests through the USAB10 proportional control valve, designed and manufactured by PONAR Wadowice. The valve can be both used as a single unit or included in the sectional block which supplies multiple actuators. There are many points of fluid flow direction change as well as cross-sectional area change inside the valve block. This leads to the occurrence of forces associated with the flow which are difficult to determine using standard mathematical formulas. Hence, the research process included building of geometrical models, next preparation of discrete models and then carrying out simulation tests using CFD methods. The tests were conducted in Ansys/Fluent environment which allowed velocity distribution, pressure distribution and values of forces acting on the valve spool to be obtained.
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Filo, G., Lisowski, E. (2021). Research on Flow Forces in the USAB10 Control Valve Using a CFD Method. In: Stryczek, J., Warzyńska, U. (eds) Advances in Hydraulic and Pneumatic Drives and Control 2020. NSHP 2020. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-59509-8_1
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DOI: https://doi.org/10.1007/978-3-030-59509-8_1
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