Automatic non-driven beam-pumping unit balance adjusting device and method

Abstract

The invention relates to an automatic non-driven beam-pumping unit balance adjusting device and method. According to the technical scheme, every two fixed bases of screws are fixed to two sides of a crank by using balance blocks, sand storage boxes are symmetrically mounted on the same side of the crank, every two sand storage boxes connected by connecting pipes and electric control valves are setas a group, and multiple sets are installed; a solar energy storage module installed in the sand storage boxes supplies power to a control module and the electric control valves, and the control module determines the circular motion position of the crank through the balance adjustment data provided by a pumping unit motor and a position sensor mounted at the tail end of the crank, controls the opening and closing time of the electric control valves, uses gravity to drive the flow of iron sand and changes the storage position of the iron sand of each set of sand storage boxes to achieve automatic balance adjustment. The automatic non-driven beam-pumping unit balance adjusting device and method can realize the automation and real-time balance adjusting operation of a beam-pumping unit, greatly reduces the labor intensity of workers, improves the working efficiency, improves the balance degree, reduces the peak torque and current, reduces the reactive loss, improves the power factor, andrealize the minimum requirements of energy consumption.

Description

technical field [0001] The invention relates to a device and a method for adjusting and balancing an oil pumping unit, in particular to a device and a method for automatically adjusting and balancing a non-driven beam pumping unit. Background technique [0002] The beam pumping unit is the main equipment in oilfield production, and its balanced operation is the basis for the safety and energy saving of the pumping unit. When the pumping unit operates in an unbalanced state, it is easy to cause damage to the reducer, shorten the service life of the belt, break the sucker rod and waste electric energy, which poses a potential threat to the safety of the pumping unit well. [0003] The balance adjustment of the pumping unit is frequent and necessary. After years of research on the balance adjustment of the beam pumping unit, some achievements have been made, and a linear balance adjustment has appeared: (1) An auxiliary balance weight is installed on the crank, and the motor is...

AI Technical Summary

Problems solved by technology

The problem is that the device is complicated, the failure rate is high, it is easy to fail, and the cost is high; (2) Install a mobile balance weight above the beam, and move the wire rope to pull the balance weight to adjust the position through the control system

In harsh environments, mechanical drive parts often wear out and age, resulting in functional failure, equipment failure, poor service life and safety reliability; at the same time, there are many mechanical parts and the cost of materials is high

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