Energy-saving mechanism research on beam-pumping unit driven by hydraulics

Aiming to solve the problems of long transmission chain, large movement inertia of components and high energy consumption of pumping units, this proposes a new pumping unit with direct balance and hydraulic drive. Through mathematical modeling and simulation analysis to compare the suspension dynami...

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Bibliographic Details
Published in:PloS one 2021-04, Vol.16 (4), p.e0249244-e0249244
Main Authors: Yang, Hukun, Wang, Jianping, Liu, Hui
Format: Article
Language:English
Subjects:
Acceleration
Biology and Life Sciences
China
Durability
Efficiency
Energy conservation
Energy consumption
Energy storage
Exploitation
Fluid dynamics
Fluid flow
Hydraulic cylinders
Hydraulic drives
Hydraulics
Lift devices
Methods
Oil
Oil and gas fields
Oil fields
Oil wells
Physical Sciences
Pressure gauges
Pumping
Quantitative analysis
Sustainable development
Velocity
Weight reduction
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Summary:Aiming to solve the problems of long transmission chain, large movement inertia of components and high energy consumption of pumping units, this proposes a new pumping unit with direct balance and hydraulic drive. Through mathematical modeling and simulation analysis to compare the suspension dynamic characteristics and balance characteristics of the hydraulically driven pumping unit with the conventional one. It turns out that the suspension maximum speed drop 21.14%, the maximum acceleration drops 28.88% and the root mean square torque drops 92.9% on the suspension of the hydraulically driven pumping unit. The experimental results proves that the hydraulically driven pumping unit has significant energy saving efficiency, and achieves more than 30.9% of active power saving rate. Theoretical and practical research results show that hydraulically driven pumping unit is reliable and better energy saving, which provides a basis in theory and engineering practice in application.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0249244