Electric proportional control pneumatic valve _ electric proportional control pneumatic valve working principle

electric proportional control pneumatic valve is what? Working principle of the electric proportional control pneumatic valve what kind of? Electric proportional control pneumatic valve is suitable for various industrial automation process control computer control system ( DCS system and measuring instrument of flow, temperature, pressure regulation of the process parameters such as automatic control equipment. The following Asia network fluid charged to bring us electric proportional control pneumatic valve working principle is introduced.
a, electric proportional control description of working principle of the pneumatic valve
electric proportional control pneumatic valve in control form is controlled by pneumatic valve opening Angle size to achieve the opening and the cross section area. Control process is in the process of motor rotation, the electric resistance in a linear feedback to the control unit, control unit according to the measured values and electric pneumatic valve, compare and judge the feedback resistance and signal control to the principle of target location stop action immediately.
2, principle of electric proportional control pneumatic valve control
electric proportional control pneumatic valve consists of electric actuators, and pneumatic valve constitute a assembly execution units. The electric actuator power supply for: usually used ACV or listed ACV, listed the most commonly used control signal is ~ mA, also have - at the same time V weaknesses such as signal system. Built-in electric actuator servo controller, the controller will current signal, Or the Angle of the voltage signal is converted to motor trip signal, driven by the motor output gear and worm drive the worm gear deceleration, do - to drive the pneumatic valve stem ° part of the rotary motion, angular travel control functions.
3, the principle of electric proportional control pneumatic valve electrical
electric proportional control pneumatic valve electrical part of the work state feedback: motor drive gear is passed to the electrical control part of the operation of auxiliary shaft gear drive SanJieTou sliding potentiometer resistance value of the variable positioning signal output pneumatic valve, power line is composed of three wires and two sets of limit switch assembly ( Open, close, public line.
that is Asia's fluid small make up to bring you the electric proportional control pneumatic valve is introduced and the working principle of the electric proportional control pneumatic valve, hope to see you enlarge the knowledge of electric proportional control pneumatic valve.