EDN: MQUURZ
Authors & Affiliations
Pogorelov M.D., Sumin R.V., Marov A.R., Volkov N.S., Bokova T.A.
Nizhny Novgorod State Technical University n.a. R.E. Alekseev, Nizhny Novgorod, Russia
Pogorelov M.D. – 2nd Year Master's Student. Contacts: 24, Minina st., Nizhny Novgorod, Russia, 603155. Tel.: +7 (987) 750-22-60; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Sumin R.V. – 2nd Year Master's Student.
Marov A.R. – Assistant.
Volkov N.S. – Assistant.
Bokova T.A. – Associate Professor, Cand. Sci. (Tech.).
Abstract
The results of the study of the hydraulic characteristics of a hydrostatic bearing with double reciprocating slotted throttling, with inclined chambers for lead-bismuth coolant used in advanced reactor installations are presented. This type of bearing assembly is widely used based on operational experience and is utilized as the lower radial support for the main circulation pumps of reactor installations with heavy liquid metal carriers, due to its experimentally confirmed outstanding performance in environments with high concentrations of solid phase oxide inclusions and specific hydrodynamics inherent to the contact area of the melt with the surfaces of structural materials, as well as its higher load capacity. Given that the normal operation of forced circulation reactor installations, regardless of their purpose, depends on the continuous operation of the main circulation pumps, the design of reliable and efficient bearing supports considering the characteristics of the coolant – lead-bismuth alloy becomes an extremely important task. The research goal is to study the hydraulic characteristics of a hydrostatic bearing with double reciprocating slotted throttling and inclined chambers within the framework of the need to improve existing calculation methods used in bearing design to suit the specific hydrodynamics of the boundary layer of heavy liquid metal coolants, or to prove their applicability in their current form. The research tasks include obtaining pressure-flow characteristics of the studied bearing as part of the circulation loop of an experimental stand developed by the institute's staff at various rotation frequencies of the shaft simulator in the experimental assembly, as well as planned resource tests. The characteristics obtained during this study, as well as those of other bearings, will be used to determine necessary corrections in calculation formulas and refine general aspects of the methodology for calculating hydrostatic bearings for lead-bismuth and other heavy liquid metal coolants.
Keywords
HSB, MCP, HLMC, lead-bismuth, hydraulic characteristics, pressure-flow characteristics, advanced reactor installations, coolant technology, calculation methodology, hydrodynamics
Article Text (PDF, in Russian)
References
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UDC 621.039
Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2025, no. 3, 3:14
