RESEARCH ON HYDRAULIC DESIGN CONCEPT OF AN HELICO-AXIAL MULTIPHASE PUMP AND ITS EXPERIMENTAL STUDIES ON PERFORMANCES

This paper presents a prototype of helico-axial pump, the total construction and design method of main parts of this pump, such as impeller, guide vanes and volute case are suggested. Selection rulers and extents of main design parameters are discussed. Accordingly, the prototypes of helico-axial pump are designed and manufactured. On this base , performances of the prototype pump under pure water condition and two-phase fluid condition containing of water and air were investigated , and the test results were analyzed profoundly.