Ultra-low speed big torsional moment special-shape motor dragging and tower type high-efficiency low-consumption intelligent pumping unit

Abstract

The invention discloses a high-efficient low-consuming oil-extractor of super-low-velocity big torque special-shaped motor actuating tower in the dynamoelectric integral appliance domain, which comprises the following parts: tower-cylinder rack, symmetrical wheel-axle two-end driving super-low-velocity big torque special-shaped motor and digital intelligent control board, wherein the load lifting band is coiled on the special-shaped motor, whose one end hangs load and the other end hangs balance weight and protect thread; the whole motion is adjusted by digital intellectual control board, which reduces energy consumption greatly.

Description

Technical field: [0001] The present invention is an ultra-low-speed, high-torque special-shaped motor-driven tower-type high-efficiency, low-consumption intelligent pumping unit. Torque special-shaped motor drives high-efficiency and low-consumption intelligent pumping unit" (ZL 02 2 57259.7), which is improved and innovated on the basis of the classic four-link beam pumping unit and the improved beamless pumping unit oil production process The revolutionary breakthrough is a new field of mechatronics application. Background technique: [0002] The original oil extraction activity of human beings is "pumping oil", and then the wooden pumping unit was invented. With the extension of the oilfield development period, the oil wells will eventually be transferred to the mechanical oil extraction method. The demand for energy, since the birth of Lufkin's first four-link beam pumping unit, began the real large-scale industrial oil recovery. It has a history of 120 years. Among th...

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Problems solved by technology

[0002] The original oil extraction activity of human beings is "pumping oil", and then the wooden pumping unit was invented. With the extension of the oilfield development period, the oil wells will eventually be transferred to the mechanical oil extraction method. The demand for energy, since the birth of Lufkin's first four-link beam pumping unit, began the real large-scale industrial oil recovery. It has a history of 120 years. Among the tens of thousands of oil wells of various types, mechanical production wells account for about 95%, while pumping unit tubular pumps account for more than 85% of mechanical production wells. At present, the tubular pump oil production mostly adopts the classic four-link beam pumping Pumping machine or similar models evolved from it. For hundreds of years, mechanical engineers and oil production engineers have racked their brains in an attempt to invent more advanced pumping units to replace four-bar linkage beam pumping machines, such as double donkey head special-shaped pumping machines. Dozens of different types of pumping units, such as curved beam pumping units and barbell balanced pumping units, have also been used in mine practice, but there is no substantial breakthrough in the principle and structure of beam pumping units. Improved beamless pumping units such as chain pumps and wide belt pumps are also complicated in structure and bulky and have affected large-scale promotion. Fighting alone due to manufacturing reasons, simple structure, reliability and durability, and convenient operation and maintenance are the fundamental reasons why the four-link beam pumping unit has endured for a hundred years. With the development of high technology and the needs of oil recovery technology, large The requirements for load, long-stroke, and low-stroke models are becoming more and more urgent, and energy shortages and investment constraints are becoming more and more strict on models with high energy consumption and low efficiency. However, limited by the structure of the beam machine, the stroke length and deceleration The tank torque increases in direct proportion, making it difficult to meet the requirements of high efficiency and low consumption. The efficiency of the beam pumping system is low, the impact load is large, and the rod pump has many failures. It is urgent to develop a new pumping unit that is better than the current types of pumping units to replace the existing models.

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