Characteristic Analysis of Adjustable Speed Equilibrium Loop of an Electric Proportional Three-way Valve

Based on the research of the existing balance valve and valve control balance loop at home and abroad, this paper constructs a quantitative pump adjustable speed balance loop based on proportional three-way valve, on the basis of analyzing the working principle of the circuit. The speed regulation of load motion in the loop is carried out by using the quantitative pump, and the working principle of the circuit is briefly analyzed. Through the analysis of theory and principle, the simulation analysis model of the equilibrium loop and important components is constructed by using AMESim software. Combined with theoretical analysis, the velocity influencing factors of the circuit are put forward, and then the velocity and pressure curves of the model loop under various parameters are obtained by adjusting some parameters which affect the characteristics of the system, which provides some guiding significance for the study of the balance loop of the single-acting cylinder and the optimization design of the next step.