Technical characteristics of hydraulic motor drive device for external lubricating slag oil pump

External lubricating oil pump is a type of pump product that has important advantages and performance in the use of pumps, and has shown good contributions in the industry. The external lubrication slag oil pump is mainly used to transport various media with poor lubrication and containing fine particles, in environments with a temperature not exceeding 200 ℃ and a viscosity not exceeding 1500cst. It can demonstrate good cost-effectiveness and fully exert performance in these environments. The external lubricating residue oil pump is used for conveying and pressurizing residual oil, coal tar, landing oil, foam raw materials and additives, and is an ideal conveying and pressurizing equipment for glass, foam, building materials, chemicals, construction, petroleum, grain and oil industries

1) Adjustment of the speed and torque of the driving device. The adjustment of the speed and torque of the hydraulic motor drive device for the external lubrication slag oil pump can be achieved by controlling the output flow rate and output pressure of the hydraulic pump station. The output flow rate is adjusted through a proportional speed control valve, and the output pressure is adjusted through a proportional relief valve

2) Implementation of hydraulic anti reverse function. When there is an electric reverse, the reverse speed is controlled by adjusting the proportional speed control valve 6 in the hydraulic circuit, in order to release the reverse potential energy stored underground; When there is a power outage and reversal, the hydraulic motor is driven to reverse by a manual dual pump motor, and the speed control valve ll controls the reverse speed to achieve the purpose of releasing the reverse

3) Possess self-protection ability. For the external lubricating oil pump, a common fault is the locking of the rubber lining and screw. Due to the poor overload protection capability of the mechanical drive system, once the above accidents occur, they will inevitably lead to other accidents, such as burning the motor, twisting and breaking the pumping rod, and loosening the bushing. The hydraulic motor drive device of the external lubricating oil pump has self-protection ability. In the event of accidents such as rubber lining locking and oil rod breakage, the output torque of the hydraulic motor and the pressure of the motor will change, resulting in a change in the pressure outlet pressure of the pump. When the pressure reaches the set value of the pressure relay, the power supply to the motor will be cut off. When the pump stops working, the electromagnetic directional valve will reverse and the anti reverse system will start

4) The ground hydraulic motor drive device of the external lubricating oil pump can achieve unmanned operation due to its high degree of automation

5) It is possible to achieve linkage between multiple driving devices driven by one pump station, and it also has significant advantages when used in encrypted oil wells

6) There is no need to design a separate anti reverse device, which simplifies the external structure of the ground drive device for the external lubricating oil pump