The Analyse And Research Of Airfoil Geometrical Parameter In The Multiphase-pump Impeller

With the development of the oceans and utilization of remote oil field, the effective work and cost-effective way of a good gas-liquid multiphase-pump has become a hot research. As the multi-phase delivery pump is gas-liquid mixture, and gas level is often higher than conventional pump, so it has both multi-phase pump and compressor performance. In the absence of multiphase flow especially for high gas rate mechanism of understanding and guidance accuracy theoretical analysis, the design of multi-phase pump become into a difficult point. In the multi-phase pump in the design, it is concerned about the main question is: pump-choice program to determine the overall design, efficiency analysis, this article will pump oil and gas on the single-level compression performance to explore.In the paper, the content of the oil and gas to pump some of the flow of key components of the transmission performance, the use of Pro / E software for the oil and gas pump flow section of the establishment of a three-dimensional numerical simulation platform. To the internal flow field of numerical simulation and detailed analysis of the internal flow of pressure, speed, gas-phase distribution, the impact of oil and gas pump efficiency of the factors discussed in detail and put forward recommendations designed to improve the structure and methods.After years of research group, oil and gas pump volute, Francis, the overall structure of the parameters have been set, however, some of the efficiency of the impeller is still not high, leaves a larger impact on the head, a serious loss of efficiency, the need for further analysis, and to propose concrete ways to improve.On the numerical simulation analysis found that oil and gas of impeller pump action cascade of optimized structure design, analysis of the impact of the cascade of transmission performance of the main factors. The use of Pro / E software on the move leaves for three-dimensional shape, divided into grids, in the Fluent software for flow simulation.From the type of airfoil and the choice of thickness of the airfoil, the maximum thickness of the airfoil relative location of the chord changes, and other aspects, to improve the performance of the rotor, so as to enhance the efficiency of the impeller action. The results show that the rotor of the improved results, the efficiency improve 9 percentage .This paper studies to a certain extent, to pump oil and gas flow section of the internal flow field analysis and design of the leaves provides a useful, the attempt to improve the design of the leaves for oil and gas pump blades designed to shorten the development cycle research and development, improve efficiency and cost savings.