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1000年

作者： Thiagarajan sivasailam.

来源：畅想之星图书光盘版（南... 评论

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Pressure pulsation in stages of electric submersible pump at shut-off under various speeds

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排灌机械工程学报 2020年第7期38卷 649-657页

作者： DHANASEKARAN Arumugam KUMARASWAMY sivasailam Department of Mechanical Engineering Chennai Institute of TechnologyChennaiTamilnadu 600069India Department of Mechanical Engineering Indian Institute of Technology MadrasChennaiTamilnadu 600036India

Electric submersible pumps were widely used in agricultural fields,petroleum and various other industries. The pressure pulsation caused fatigue failure due to vibration in electric submersible pump and affects the life and performance of its system. The objective of this study was to experimentally investigate the characteristics of pressure pulsation which were generated at various stages of a multistage electric submersible pump during closed valve operation at different speeds. An electric submersible pump with five stages was selected for conducting experiments. A variable frequency drive( VFD)was used to operate the electric submersible pump at five different speed settings from 40 to 60 Hz. Piezoresistive pressure transducers were mounted at each stage of the electric submersible pump to capture the unsteady pressure signals. At each speed setting,the electric submersible pump was operated at the shut-off condition and the signals of unsteady pressure from all the five stages were captured. A fast fourier transformation( FFT) was carried out on the pressure signals to convert into frequency *** the spectra of pressure pulsation signals,the characteristics of pressure pulsation are obtained for each stage and for various speed settings which were then used to understand its variation with speed and stages.

关键词： electric submersible pump shut-off stage pressure pulsation variable frequency

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