Introduction to the working principle of electro-hydraulic plug-in valve

? ? Electro hydraulic plug valveIt mainly consists of electric motors, hydraulic pumps, hydraulic cylinders, plug plates, control systems, etc. It combines electric and hydraulic technology to achieve precise control of fluid media (such as gas, liquid, or solid particle mixtures). Electro hydraulic plug valves are mainly suitable for applications that require fast response and high sealing performance, such as large pipeline systems in industries such as petroleum, chemical, power plants, and water treatment that require remote control and high sealing requirements. The working principle is introduced as follows:

? ? 1、 Start up phase

Receiving instructions: The control system receives electrical signals to open or close valves.

Electric motor start: The electrical signal triggers the electric motor to start and drive the hydraulic pump.

? ? 2、 Hydraulic transmission

Hydraulic pump operation: The hydraulic pump starts working, delivering hydraulic oil through pipelines to the hydraulic cylinder.

Hydraulic cylinder drive: Hydraulic oil enters the hydraulic cylinder, generating thrust and driving the insert plate to move along the interior of the valve body.

? ? 3、 Insertion board movement

Insertion board movement: The insertion board moves towards the open or closed position according to the thrust of the hydraulic cylinder. The plug is lifted from the valve seat, allowing fluid to pass through the valve; The insert plate moves downward and tightly adheres to the valve seat, thereby cutting off the fluid passage.

? ? 4、 Control feedback

Position feedback: Sensors within the control system monitor the position of the plug-in board to ensure that it reaches the preset open or closed position.

Stop action: Once the plug-in board reaches the set position, the control system sends a signal to stop the motor and the hydraulic pump stops working.

? ? 5、 Complete the action

Maintain state: Maintain the pressure of the hydraulic system and keep the plug in its current position until a new command is received.

? ? The characteristics and advantages of plug-in valves mainly include:

1. Quick response: The electro-hydraulic plug valve has a short response time and is suitable for situations that require quick switching.

2. High sealing performance: A good seal can be formed between the insert plate and the valve seat, suitable for applications that require leakage prevention.

3. Remote control: It can be remotely controlled through electrical signals, suitable for dangerous or difficult to access environments.

4. Powerful thrust: The hydraulic system provides a large thrust that can drive large or heavy-duty valves.