| 摘要 |
FIELD: oil producing industry. SUBSTANCE: proposed electric centrifugal pumping unit contains submersible electric motor, hydroprotection, support pivot and working stages of multistage pump. Device for producing vibroacoustic wave is installed before working stages from side of support pivot. Said device consists of stationary part with holes and rotating disk, both made of nonmagnetic material with permanent magnet fitted into their bodies. Unlike poles of permanent magnets are arranged opposite to each other. EFFECT: increased efficiency of pumping unit and its service life. 3 dwg
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