The electric drive mechanism is a common and widely used driving method in automatic butterfly valves. The opening and closing of the valve is controlled by the electric actuator to achieve remote control and automatic operation. In the automatic butterfly valve, the working principle of the electric drive mechanism mainly includes the synergy of components such as the electric actuator, power supply, control system and sensor.
The electric actuator is the core component of the electric drive mechanism, which converts electrical energy into mechanical energy, converts the rotary motion into linear motion through the drive mechanism, and controls the opening and closing of the valve. The electric actuator consists of components such as a motor, a reducer, a transmission mechanism and a position feedback device. The motor of the electric actuator receives electrical energy from the power supply, generates rotary motion, and converts the rotary motion into linear motion through the reducer and transmission mechanism to drive the opening and closing of the valve.
The power supply is the energy source of the electric drive mechanism, providing electrical energy to the electric actuator to drive the movement of the valve. The power supply can be an AC power supply or a DC power supply, which is selected according to the working requirements of the electric actuator and the power supply type of the system.
The control system is the intelligent core of the electric drive mechanism, which realizes precise control of the valve through control signals and feedback signals. The control system can adopt different control methods according to the system requirements, such as switch control, analog control or digital control. The control system includes components such as controllers, interface modules, programming devices, etc., which can realize functions such as remote monitoring, automatic adjustment and fault diagnosis.
Sensors are an important part of the electric drive mechanism, which are used to monitor parameters such as valve position, speed, force and temperature in real time and feed this information back to the control system. Sensors help the control system adjust the opening and closing position of the valve in real time to ensure stable operation of the system and improve control accuracy.
In actual applications, different types of electric actuators are selected according to system requirements and environmental conditions, such as rotary electric actuators or linear electric actuators. Users can also choose different control methods and sensor types according to specific application scenarios to achieve more accurate, reliable and intelligent automatic control.
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