Development And Experiment Of Spiral Axial Flow Oil - Gas Mixed Pump

Helical Axial Multiphase Pump is a new technology applied in multiphase transportation production process of oilfield, and the research and development aimed at this pump has been now a focus.The research of Helical Axial Multiphase Pump is oil and gas transmission equipment unmetered in our country at present. On the analysis of the helical axial flow on the basis of the principle of pressurization pumps, design the structure of the helical axial mixture pumps, parameter calculation of its key parts, And make the experimental prototype, according to the actual working condition of the oil and gas fields in our country, made the prototype experiment schemes and experiment equipment.According to typical situation of two-phase oil-gas of our country, simulate the two-phase flow characteristics of slug flow in Helical Axial Multiphase Pump, make a lot of experiments, get firsthand data. Lastly we process the data, research external characteristic of Helical Axial Multiphase Pump under pure water and void fraction, and get the interactional relationship of parameters in rotate speed, flow, void fraction, supercharge, etc. To provide a basis for the theoretical calculations, and can guide design refinement of the future.The body of Helical Axial Multiphase Pump is mainly composed of suction unit, compressor unit and exhaust unit. The compressor unit is the most critical part which is composed of impeller and guide glade. The structure composed of impeller and guide glade is a new type, which is different from both compressor and traditional centrifugal pump, and is product of centrifugal pump and axial flow compressor.This issue also do the research of the structure of impeller stator and influence of parameters for transmit performance of oil-gas multiphase pump, and lays the foundation for build the design model of the structure parameters of impeller stator.