Analysis on mixed transport characteristics of oil-gas pump

Abstract

Abstract: In order to reveal internal flow and mixing transport characteristics of an oil-gas pump, the steady gas-liquid two-phase flow simulation, which is based on the standard k-ε turbulence model and the Mixtere multiphase flow model, for the oil-gas pump is carried out by using computer simulation technology. And the distribution of internal pressure field, velocity field as well as gas volume ratio are obtained. Simulation results show that, from the impeller inlet to the impeller outlet, the degree of gas-liquid two-phase separation becomes more and more serious, the relevant pressure increases gradually, and the flow state tends to be turbulent. From the inlet of the guide vane to the exit of the guide vane, the bubble cluster moves gradually from the hub to the middle of the channel, and the relevant pressure decreases gradually also, forming a low pressure zone, which leads to eddy flow phenomenon in the low pressure zone.

Key words: oil-gas multiphase pump, gas-liquid phase, mixing transport characteristics

CLC Number:

TK72

HAN Wei, YUAN Shi-fang, QUAN Hui. Analysis on mixed transport characteristics of oil-gas pump[J]. Journal of Lanzhou University of Technology, 2021, 47(1): 41-46.

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