Analysis of a Control Valve Flow Resistance in the Application of Switching the Hydraulic Motor Circuits
摘要
This article provides an analysis of a logical valve block designed for usage with multiple hydraulic motors. The study covers the flow rate range of up to 400 dm3/min and a pressure of up to 40 MPa. It was assumed that receivers in the form of hydraulic motors could operate bi-directionally and alternately in both serial and parallel connection arrangements. For this purpose, a valve block was designed, and a CFD analysis was carried out. The necessary 3D geometric models were built in the CREO Parametric system. Then, a discrete model was created using the ANSYS/Fluent environment, and the k-ε turbulence model was assigned. The outcomes of the simulations, conducted for various flow rates, included liquid velocity and pressure distributions. The results showed that the proposed solution is advantageous, particularly in high-power systems. At a maximum power of 267 kW, the designed logical valve block generated losses of only 0.75% and 0.42%, respectively, in serial and parallel connections. In addition, the proposed system can operate at high pressure, up to 40 MPa.