Main line pumps designed for transportation of crude oil and oil products on main line transportation facilities have large overall dimensions, which demand much effort to design and optimize their wet ends. Referring to the theoretical justification of the scaling methodology, Transneft Oil Pumps JSC and The Pipeline Transport Institute LLC in collaboration with Bauman Moscow State Technical University and Ural Engineering Center LLC carried out the research and development (R&D) project Pump Wet End Parametric Test Bench Design and Manufacture to assess the parameters of pump scale models and to optimize the wet ends before the full-scale pump units can be manufactured. The project output was a designed and manufactured bench and a pump unit scale model with a detachable wet end, acceptance tests, and receipt of a patent for the group of inventions. The bench and the scale model designed as a part of the R&D project provide the following opportunities: 1) studying the effect of pump unit scale model geometrical parameters to determine the best geometry of the wet end before the full-scale manufacturing is initiated; 2) parametric tests of pump scale models according to the methods specified in national standard GOST 6134 to scale the pump wet end further up to the actual dimensions using scale factors and to design pump units with enhanced performance rating; studying cavitation formation and development in various operating conditions on a pump unit scale model combined with cavitation phenomena imaging and assessment of the actual cavitation characteristics of the designed pumps.
References
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