Vent Control Valve Design And Simulation Optimization

Regulating valve in the field practical condition of application, the simulation in the ex factory inspection and testing shall not be. To test whether the design structure can achieve the requirements of working conditions on site, according to the technical parameters, simulate the working conditions of the use of fluid simulation software. Simulation of fluid through the valve cavity through the control flow within after effects, to see whether it can achieve the request parameters, in order to make the regulator valve can play a better control effect, to ensure the normal operation of the system.In this paper, aiming at the vent site problems first design, control valve, in order to improve the control valve used on site stability. From two aspects of improvement. First, improve the valve positioner control stability degree. Positioner is stable decision stability control valve opening and flow characteristics. Valve positioner valve stability by accepting set comes from the regulator current signal(4 ~ 20mA) of the signal is compared with the open from the actual valve stem feedback signal, if the microprocessor to get a deviation signal, outputs a corresponding supplementary signal to control the piezoelectric valve positioner, and the compressed air must the amount of after locator piezoelectric valve into the cylinder actuators, and drive the valve core displacement, so as to achieve the position of a valve core, try to make the valve opening with high stability.Then make improvements in valve structure, the main circulating valve control element sleeve structure change, in order to obtain better use effect. Through the three-dimensional model building, structure analysis, flow analysis and simulation software using the flow, draw the corresponding parameter to judge whether the solution is feasible, to achieve the purpose of flow characteristics of correction, so as to determine the structural characteristics of this kind of condition of the valve, control valve better popularization and application of this kind of condition.