One-driving-two hydraulic pumping unit

By combining a one-to-two hydraulic pumping unit design with a temperature sensor heater, the problems of high energy consumption, low oil production, and poor low-temperature fluidity of hydraulic pumping units are solved. Energy recovery and oil tank heating and insulation are achieved, improving production efficiency and work efficiency.

CN224432510UActive Publication Date: 2026-06-30XIAN DAUTES OIL & GAS ENG SERVICE CO LTD
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Patent Information

Application Number
CN202521823867.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-26
Publication Date
2026-06-30
Estimated Expiration
2035-08-26

AI Technical Summary

Technical Problem

Existing hydraulic pumping units can only extract oil one-to-one, resulting in low oil production, high energy consumption, and the inability to achieve energy recovery. Furthermore, the hydraulic oil has poor fluidity in low-temperature environments, affecting work efficiency.

Method used

The design employs a one-to-two hydraulic pumping unit, utilizing a proportional valve to control two variable pump motors to work alternately, thereby achieving energy recovery. Temperature sensors and electric heaters are used to maintain the temperature of the hydraulic oil in the tank, ensuring its fluidity.

Benefits of technology

It improved production efficiency, reduced energy consumption, ensured working efficiency in low-temperature environments, and achieved effective energy recovery and heating and insulation of the oil tank.

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Abstract

The utility model relates to the technical field of hydraulic oil pumping units, in particular to a one-driving-two hydraulic oil pumping unit which comprises an installation bottom plate, supporting frames are installed on the left side and the right side of the front side of the top of the installation bottom plate, servo hydraulic oil cylinders are installed in the supporting frames, displacement sensors are installed in inner cavities of the servo hydraulic oil cylinders, and the displacement sensors are connected with the servo hydraulic oil cylinders. A hydraulic oil tank is mounted on the rear side of the top of the mounting bottom plate through bolts, a proportional valve and a variable pump motor are mounted on the top of the hydraulic oil tank through bolts, and the front side of the electromagnetic valve set communicates with an energy accumulator. The proportional valve controls the two variable pump motors to alternately work to supply oil to the servo hydraulic oil cylinders at the two ends, when the servo hydraulic oil cylinder at one end ascends, the servo hydraulic oil cylinder at the other end descends, hydraulic energy is transmitted to the other lifted variable pump motor, the servo hydraulic oil cylinders at the two ends work in a reciprocating mode, and the servo hydraulic oil cylinders at the two ends work in a reciprocating mode. In this way, energy recovery is achieved in a one-driving-two mode, and the production efficiency is improved.
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