The working principle of the proportional valve is based on the interaction of electromagnetic components, valve control, feedback sensors and control signals. By adjusting the opening and closing degree of the valve, the fluid flow or pressure control is achieved, which is suitable for applications that require high-precision control.
1. Electromagnetic drive: The common electromagnetic drive components of the proportional valve include electromagnetic coils and magnets. When current passes through the electromagnetic coil, it generates a magnetic field, which can change the position of the magnet and control the opening and closing of the valve.
2. Valve control: The proportional valve contains a valve or valve body, which can adjust its opening and closing degree through the control of the electromagnetic component. The valve consists of a movable valve core or valve cavity, which can move in the valve body to change the size of the fluid channel.
3. Feedback sensor: The proportional valve is usually equipped with a feedback sensor to monitor the flow or pressure of the fluid and send feedback information back to the control system.
4. Control signal: The control system sends a control signal to the electromagnetic component through the electronic controller, telling the electromagnetic component how to adjust the valve.
5. Fluid flow: When the electromagnetic component adjusts the position of the valve according to the control signal, the opening of the valve will be affected, so that the speed and amount of fluid flow can be controlled.
6. Feedback control: Feedback sensors continuously monitor fluid flow or pressure and compare the actual value with the desired value, and then continuously adjust the operation of the electromagnetic element to keep the system in the desired state.
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