Wanchao Hydraulic Solenoid Valve Shanghai manufacturer explains the operating principle of a hydraulic power station for metallurgical machinery:
The core function of a hydraulic power station:
It converts electrical energy into hydraulic energy, and then into mechanical energy, driving metallurgical equipment to complete heavy-duty, high-precision actions.
Overall Workflow (Four-Step Cycle)
Power Supply
The electric motor drives the hydraulic pump to rotate, drawing hydraulic oil from the tank and generating a high-pressure oil flow.
Pressure and Flow Control
High-pressure oil enters the control valve group:
- Relief valve: Sets and stabilizes the system pressure.
- Pressure reducing valve: Regulates the branch pressure.
- Solenoid directional valve (including explosion-proof type): Controls the direction, on/off state, and speed of oil flow.
Check valve, pressure holding valve: Ensures the cylinder does not slide down or lose pressure.
Action Execution
High-pressure oil enters the cylinder or hydraulic motor, driving:
Converter tilting, oxygen lance lifting, continuous casting machine vibration, rolling mill pressing, furnace door lifting, walking beam movement, etc.
Oil return circulation
Oil returns from the actuator → through the oil return filter and cooler → back to the oil tank.
Oil temperature and cleanliness are controlled, completing the closed-loop circulation.