Levchenko D. Improving the workflow of the vortex ejector stage in the liquid-ring vacuum pump

The dissertation is devoted to modeling workflow vortex ejector stage (VES), the study of regime characteristics and flow parameters in the flow of the vortex ejector in order to improve its workflow. This thesis presents the results of experimental and theoretical study of the workflow stage ejector vacuum vortex unit. The influence of the basic geometric parameters of the ejector flow on the characteristics of a vacuum unit. The main content of the work is to determine the patterns of distribution of velocities of the gas flow in specific sections of the VES, and confirmation of the hypothesis of gas-dynamic model of interaction flows. Also one of the areas of research was to compare the ejector device sthaightstream and vortex type and definition of the limits of their effective application. On the basis of physical and mathematical model of the law of conservation of momentum in the calculated cross sections of wind farms, using complex gas-dynamic functions were obtained by the basic equations of the workflow VES. Experimentally determined pattern of distribution of velocities in the vortex chamber of the vortex ejector degree, taking into account the three-dimensional nature of the gas flow. The resulting dependence vector components of absolute velocity of the gas flow, and its main angular features. According to the experimental data are constructed regression equations that were used in obtaining mean integral flow parameters in the typical cross-sections of the vortex chamber. The analysis of the interaction energy flows in the flow of wind farms with the flow of the interaction parameter, and setting the ratio of the energy flows. The boundaries of the effective application of the vortex and sthaightstream ejector stage in the vacuum unit on the basis LRVP.