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What is the working principle of explosion-proof hydraulic solenoid valve?

Date：2024-06-21

The working principle of explosion-proof hydraulic solenoid valve is as follows:

Working principle of electromagnetic coil:
The solenoid valve consists of a solenoid coil and a valve body. When the coil is energized, the current passes through the coil to generate a magnetic field.
Interaction between iron core and valve core:
There is usually an iron core inside the electromagnetic coil, which interacts with the magnetic field of the coil. The iron core is connected to the valve core, which is a key component for controlling fluid flow.
Valve core position change:
Depending on the polarity of the electromagnetic coil, the magnetic field attracts or repels the iron core, causing the valve core to move in the valve body. The movement of the valve core changes the opening and closing state of the fluid channel.
Control hydraulic system:
The movement of the valve core controls the oil circuit in the hydraulic system to achieve control of actuators such as hydraulic cylinders and hydraulic motors. For example, it can control the flow of oil into or out of the actuator to start, stop or change the direction of movement.
Explosion-proof characteristics:
Explosion-proof solenoid valves are designed with special explosion-proof structures, such as sealed housings and special sealing materials, to prevent flammable gases or dust from entering the electromagnetic coil or other electrical components, reducing the risk of explosion.
Pressure and flow control:
The solenoid valve can also control the pressure and flow through the valve by changing the position of the valve core, achieving fine adjustment of the hydraulic system.
Feedback mechanism:
Some advanced solenoid valves may have a position feedback mechanism, such as using a sensor to monitor the position of the valve core to ensure that the valve reaches the predetermined position accurately.
Safety features:
In addition to the basic explosion-proof design, the solenoid valve may also have safety features such as overload protection, short circuit protection, and overheating protection to prevent damage or safety accidents under abnormal working conditions.
Power-off reset:
In the event of power failure or failure, some solenoid valves are designed to automatically reset to a safe position to ensure system safety.
Maintenance and care:
Regular maintenance and inspection are essential to maintain the performance and extend the service life of the solenoid valve. This includes cleaning the solenoid coil, checking the electrical connections, replacing worn seals, etc.