Results 21 to 30 of about 32,518 (302)
Frontiers in Energy Research, 2023 Aiming at the method of solving the optimization scheme for urban tidal drainage pumping stations during heavy rainfall below the urban drainage design standard, and the problems such as the mismatch between the head and water level of pumping stations ...
Gong Yi, Zou Wenhao
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Известия высших учебных заведений: Проблемы энергетики, 2021 TARGET. The purpose of this work is to develop a method for diagnostics of equipment of sucker rod pumping units (SRPU) during operation according to the parameters of the wattmetrogram. A wattmetering module is used as a measuring element, the developed
V. A. Manakhov, A. N. Tsvetkov
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Известия высших учебных заведений: Проблемы энергетики, 2023 RELEVANCE. At present, unstressed systems for launching high-voltage electric motors have been increasingly used. These systems limit the values of starting currents as well as eliminate alternating oscillations of engine electromagnetic torque.
Sh. T. Dadabaev +2 more
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Development and Application of Ball Screw Pumping Unit
Shiyou jixie, 2021 At present, 12,000 rod pumped wells are implementing intermittent pumping system in the Daqing Oilfield, however, due to insufficient downhole feed flow, the use of conventional walking-beam pumping unit seriously affects the economic, efficient, energy ...
Zheng Dongzhi
doaj
Improving the Beam-Balanced Pumping Unit
Bulletin of Kalashnikov ISTU, 2019 Описана усовершенствованная телескопическая конструкция головки с балансиром, электродвигателем c дистанционным управлением, возможностью менять длину плеча балансира для подготовки привода штанговой скважинной насосной установки (ШСНУ) к проведению оперативного ремонта скважин с минимальным участием человека.
A.V. Volokhin +2 more
openaire +2 more sources
Design and Dynamic Performance Analysis of Eccentric Wheel Pumping Unit
Shiyou jixie, 2020 The guide rod pumping unit with a larger extreme position angle is beneficial to the exploitation of low-yield wells. The rack and pinion shift can make the transmission more stable.
Shao Jun, Hu Guodong, Wang Dewei
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Strength Analysis of Efficient Linear Pumping Unit
, 2017 In order to avoid the pumping unit damaging caused by strength failure in actual work, this paper builds reliability calculation formula and reliability point estimation model based on SSI.
Sen Wang +8 more
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Multi-Physics Coupling Analysis of Efficient Pumping Unit Linear Motor
, 2017 Taking efficient pumping-unit linear motor as the research object in this paper, SOLIDWORK has been used to establish 3D model and analyze multi-physics of the efficient pumping-unit linear motor, including vibration mode, stress analysis and the ...
Sen Wang +7 more
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FEBS Letters, EarlyView.We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace +6 more
wiley +1 more source
Design Research on Working Mechanism of Beam Pumping Unit
, 2010 Based on the unique geometry and mechanical movement of beam pumping unit, this paper presented a simple swing equation and computed motorial parameter, meanwhile under the conditions of the static load and inertial load of the polished-rod of a ...
Jiang Zhu, Jun Liu
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