Study on design and simulation analysis of the double horse-head pumping unit based on the compound balance structure

Fu, Hailong; Zou, Longqing; Wang, Yue; Feng, Zhipeng; Song, Zhenhua

doi:10.1177/0954406214565683

Cited by 11 publications

(5 citation statements)

References 4 publications

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“…It not only has the advantages of the beam pumping unit, such as a simple structure, strong applicability, reliable operation, long service life and convenient maintenance, but also has the advantages of a small additional dynamic load and better energy-saving effects. Nevertheless, structural modifications augment the complexity and expense of the mechanical system [24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Kinematic and Dynamic Analysis of Eccentric Balanced Positive Torque Pumping Unit

Xu,

Wang,

et al. 2024

Machines

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Beam pumping units have numerous energy transfer links, significant net torque fluctuations and negative net torque in gear boxes, which lead to a high installed power and low system efficiency. In order to improve the efficiency of the pumping unit, in this paper, an eccentric balanced positive torque pump unit was designed based on the principle of eccentric balance that is small in size and adopts a flexible energy transfer system instead of a rigid structure to significantly reduce the energy transfer link. The kinematics and dynamics of the eccentric balanced positive torque pumping unit were analyzed and the ability to operate with positive torque over the entire cycle was verified using theoretical computations. And the results of the theoretical calculation were verified by using the virtual prototype simulation and analysis software ADAMS (Automatic Dynamic Analysis of Mechanical Systems); the pumping unit was optimized for relevant parameters such as the balance crank angle λ and the counterweight center of mass offset angle δ. Indoor testing and comparative field application have demonstrated that the installed power has been reduced by 80%, the weight of the entire prototype has decreased by 25% and the system efficiency has reached 24.3%. Additionally, electricity savings of over 50% have been achieved. These results indicate that the pumping unit has been designed correctly, has high reliability and has significantly improved system efficiency while also providing an obvious energy-saving effect.

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Section: Introductionmentioning

confidence: 99%

Kinematic and Dynamic Analysis of Eccentric Balanced Positive Torque Pumping Unit

Xu,

Wang,

et al. 2024

Machines

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“…Feng et al [4] proved the effectiveness of a new structure of a heterogeneous pumping unit. Fu et al [5] designed a new double horse-head pumping unit, and his team has verified the energy saving effect based on a simulation study. A precise system model is an important premise for operational management to save energy, reduce costs, and improve efficiency [6].…”

Section: Introductionmentioning

confidence: 99%

Experiments and Simulation on a Late-Model Wind-Motor Hybrid Pumping Unit

Zhang

Wang

2020

Energies

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Many oil fields are full of wind energy. At present, wind power generation technology has catered to oil fields. A larger wind turbine is used to supply power to several pumping units. As a result of the structural characteristics of the pumping unit, the efficiency of the electromotor is very low, which leads to a reduction in the utilization rate of wind energy. At the same time, considering the high cost of large wind turbines, the energy saving effect is not obvious in practical applications. This paper proposes an energy supply model of a pumping unit driven by a small wind turbine and a new wind-motor hybrid structure. Instead of wind power generation technology, wind energy drives the pumping unit directly via a mechanical–hydraulic transmission system. This new mechanical-hydraulic system can optimize the power confluence of wind and electric power. To enhance the efficiency of the motor, a mathematical model and a test station were established. The correctness of the energy conservation method and the mathematical model was verified, and the performance of the wind-motor system was studied.

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“…Feng et al [6] has proved the effectiveness of the new structure of phased pumping unit. Fu et al [7] has designed a double horsehead pumping unit, and his team has verified the energy-saving effect based on simulation study. However, structural changes increase the complexity and cost of the mechanical system.…”

Section: Introductionmentioning

confidence: 99%

Experimental Research on Parameters of a Late-Model Hydraulic-Electromotor Hybrid Pumping Unit

Zhang

Wang

et al. 2020

Mathematical Problems in Engineering

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Beam pumping unit is widely applied in the oilfield area. However, the falling process of the pumping unit horsehead causes large-amplitude variations of the motor torque and greatly reduces the efficiency of the system. This paper proposes a late-model hydraulic-electromotor hybrid system which can realize energy recovery and assist electromotor work. The hybrid system can improve the matching characteristics between the electromotor and the pumping unit. A mathematical model is built and verified by experiment studies. According to the experimental and simulation results, it can be concluded that energy recovery function of the designed hydraulic-electromotor hybrid system is demonstrated to be effective, and the electromotor can keep the output power stable. As the efficiency of the hybrid power system affects the energy-saving effect, this paper establishes the efficiency model of the system and studies the key parameters affecting the efficiency of the system through experiments and simulation. The key parameters include the minimum displacement ratio of the pump and hydraulic motor, working pressure, and transmission ratio. This paper proposes a parameter optimization design method of the hydraulic-electromotor hybrid system. Under the optimal parameter combination, the hydraulic-electromotor hybrid system efficiency can reach 92%, and the electric power transmission efficiency of the system can be raised to 75%.

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Study on design and simulation analysis of the double horse-head pumping unit based on the compound balance structure

Cited by 11 publications

References 4 publications

Kinematic and Dynamic Analysis of Eccentric Balanced Positive Torque Pumping Unit

Kinematic and Dynamic Analysis of Eccentric Balanced Positive Torque Pumping Unit

Experiments and Simulation on a Late-Model Wind-Motor Hybrid Pumping Unit

Experimental Research on Parameters of a Late-Model Hydraulic-Electromotor Hybrid Pumping Unit

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