Swinging dynamic balancing synergistic energy-saving oil pumping machine

Abstract

The invention relates to a suspension type dynamic equilibrium effect-increasing energy-saving pumping unit. The mechanical structure of the suspension type dynamic equilibrium effect-increasing energy-saving pumping unit is divided into two forms, namely a rigid dynamic equilibrium structure and a soft dynamic equilibrium structure. The suspension type dynamic equilibrium effect-increasing energy-saving pumping unit is characterized in that a group or a plurality of groups of swinging arm mechanisms are connected on a cross beam; lower ends of the swinging arm mechanisms are connected with lifting devices; the swinging arm mechanisms and the cross beam form a stable walking beam structure; the swinging arm mechanisms and the lifting devices are combined into a suspension device which is used for receiving the driving force and the balanced load; and different types of motors can be adopted for performing power drive and electric control. The suspension type dynamic equilibrium effect-increasing energy-saving pumping unit applies the means of combination of static balance and dynamic balance and integrates three stages of composite balance means into a whole simultaneously from two aspects of renovating the mechanical structure and improving the corresponding matched electric drive and control means, and has the advantages of novel design, simple structure, reliable operation, good balance performance, high system efficiency, low manufacturing, operating and maintenance cost, simple and convenient lifting and assembly, obvious energy-saving effect and so on.

Description

1. Technical field [0001] The invention relates to an oil extraction system combining an oil extraction machine and a control technology, and is a pendulum-type dynamic balance, efficiency-enhancing and energy-saving oil pumping unit. 2. Background technology [0002] Conventional beam pumping unit is a kind of oil extraction equipment widely used in oil fields at present. The four-bar linkage mechanism composed of donkey head, beam assembly and bearing assembly has its own disadvantages: large load moment fluctuations, poor dynamic performance, low system efficiency, large power loss, and poor balance adjustment. It is convenient, and the swing angle of the beam is relatively small, so it is difficult to meet the needs of long-stroke swabbing when the water injection volume of the oil well increases suddenly in the later stage of oilfield development. It has obvious advantages such as working in the field all the year round without special supervision, so it has been occup...

AI Technical Summary

Problems solved by technology

Although the use of these technologies can achieve certain energy-saving and efficiency-enhancing effects, except for the reactive power compensation technology that is widely recognized by oil fields, most of the other technologies are due to high cost, low reliability, and poor closeness and correlation with mechanical equipment. and other factors, it has been unable to form a complete set with the pumping unit for large-scale use in the oil field

[0006] The fundamental reason why the above technologies have solved old problems and added new ones is that most of the research directions start from a single direction of energy saving or efficiency enhancement, ignoring the requirements of the oil field for pumping units, first of all, reliability and durability

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