Analyze the working principle of electric valve:
The action force distance of the electric valve is larger than that of the electric valve, and the switching speed of the electric valve can be adjusted. The system is also more complex than an electric valve.
Pneumatic valves are sensitive to response, and many factories with high control requirements set up compressed air stations for pneumatic instrument control components. Electricity means electricity. and can control its flow.
First, what is an electric valve: An electric valve simply uses an electric actuator to control the valve, so as to realize the opening and closing of the valve. It can be divided into upper and lower parts, the upper part is the electric actuator, and the lower part is the valve.
There are two types of electric valves, one is the angular stroke electric valve: the angular stroke electric actuator is used in conjunction with the angular stroke valve to realize the internal rotation of the valve within 90 degrees to control the on-off of the pipeline fluid; the other is the straight stroke electric valve: by The straight-stroke electric actuator is used with the straight-stroke valve to realize the up and down movement of the valve plate to control the on-off of the pipeline fluid. It is usually used in conjunction with equipment with a higher degree of automation.
Second, the operating principle of the electric valve: The electric valve is usually connected by an electric actuator and a valve, and becomes an electric valve after installation and debugging. The electric valve uses electric energy as power to connect the electric actuator to drive the valve to realize the opening and closing and adjustment of the valve. So as to achieve the purpose of switching or adjusting the pipeline medium.
Solenoid valve is a type of electric valve; it uses the magnetic field generated by the electromagnetic coil to pull the valve core, thereby changing the on-off of the valve body, the coil is de-energized, and the valve core is retracted by the pressure of the spring.
Third, the use of electric valve:
Electric valve: It is used for analog regulation of medium flow in liquid, gas and wind system pipelines, and is controlled by AI. In the control of large valves and wind systems, electric valves can also be used for two-position switch control.
Electric valve: It can have AI feedback signal and can be controlled by DO or AO, which is more common in large pipelines and dampers.
1. Switch form: The electric valve is generally driven by a motor. It takes a certain amount of time to complete the opening or closing action, and it can be adjusted.
2. Working nature: The electric valve is generally driven by a motor, which is relatively resistant to voltage shocks. The solenoid valve is quick-opening and quick-closing, and is generally used in small flow and small pressure, where the switching frequency is required to be large. The opening of the electric valve can be controlled, and the state is open, closed, half-open and half-closed, which can control the flow of the medium in the pipeline, but the solenoid valve cannot meet this requirement.
3. Applicable process: Electric valves are generally used for adjustment, and there are also switching quantities, such as: the end of the fan coil unit.
