The pig transporter power unit is customized with an electronically controlled hydraulic system, equipped with manual and remote control operation modes to ensure the safety and stability of the tailgate.
The hydraulic power unit is used as an oil supply device, which is connected to several hydraulic cylinders through an external pipeline system to control the movement of multiple groups of valves. The oil tank, oil pump and accumulator form a separate closed power oil source system. The oil station can be equipped with a PLC control system, which controls all internal hydraulic functions and generates signals for exchange with the control room (DCS). Control elements such as hydraulic servo valves are directly installed on the hydraulic cylinders, through which high-pressure oil is pressed into the cylinder or released from it. Under normal conditions, the oil pump supplies oil to the system, automatically maintains the rated pressure of the system, and realizes the valve holding function at any position by locking the control valve; under working conditions, the hydraulic actuator is controlled by the solenoid valve, and the system command signal activates the solenoid valve to control the oil pressure and the energy release of the accumulator, thereby controlling the cylinder slide valve, driving the valve through the mechanical transmission mechanism, and implementing rapid closing, normal opening and closing, and test control. The high-pressure oil cylinder can be fixed on the valve stem or used directly as an actuator. The hydraulic power unit can provide a wide range of accessories.
General troubleshooting of the hydraulic power unit: the motor does not rotate, check the accuracy of the connection line. The motor starts, the oil cylinder does not rise or rises unsteadily, the oil level in the oil cylinder is too low, add oil to the specified oil level; the viscosity of the oil is too large or too small, use the recommended hydraulic oil; the oil suction filter is blocked, clean or replace the filter; the oil suction pipe is not sealed or leaking, find out the leak, the unsealed part and repair or replace the oil suction pipe; the solenoid valve or manual valve is not closed, clean the solenoid valve, manual valve or replace it; the emergency button of the auxiliary manual solenoid valve is open, close the emergency button; the solenoid valve is energized, causing the oil to unload from the solenoid valve, check the electrical circuit; the motor rotates in the opposite direction, check and reconnect; the overflow valve is not installed correctly, or the pressure adjustment is not adjusted properly, check and reset the pressure. Imported aerial work platform power unit pneumatic hydraulic power unit is a power system that integrates a liquid collection tank, a pressure liquid tank, a gas-liquid pump, a pressure gauge and an air source switch.