Abstract—
The article presents the results of experimental studies on the effect of circulation pump operating modes on the wear of a double reciprocating slit throttling hydrostatic bearing operating in a lead coolant environment. The experiments were conducted on a high-temperature circulation test bench at a lead coolant temperature of 420–450°C. Results were obtained for operation modes with a high number of start-stop cycles (approximately 100 cycles per 100 h of operation), sustained operation with a low number of start–stop cycles and nominal speeds of 1000–1100 rpm (not exceeding 8 cycles per 100 h of operation), with 25 start–stop cycles per 100 h, and at low pump speeds below nominal values of 600–700 rpm with a maximum of 8 start–stop cycles per 100 h of operation. Data on the wear of the bearing bush and shaft are presented in the article. Processing and analysis of the research results led to the conclusion that this type of bearing can be used in low-pressure axial pump systems only under conditions where the pump creates a head exceeding 1.1 m of liquid lead.
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REFERENCES
Beznosov, A.V., Bokova, T.A., and Bokov, P.A., Tekhnologii i osnovnoe oborudovanie konturov reaktornykh ustanovok, promyshlennykh i issledovatel’skikh stendov so svintsovym i svintse-vismutovym teplo nositeliami: ucheb. posobie (Technologies and Main Equipment of Reactor Circuits, Industrial and Research Stands with Lead and Lead-Bismuth Coolants, The School-Book), Nizhny Novgorod: Litera, 2016.
Mitenkov, F.M., Novinsky, E.G., and Budov, V.M., Glavnye tsirkulyatsionnye nasosy AES (Main Circulation Pumps of Nuclear Power Plants), Moscow: Energoatomizdat, 1989.
Minghui Guo, Guojun Zhang, Guoqiang Xin, Hao Huang, Yu Huang, Youmin Rong, and Congyi Wu, Laser direct writing of rose petal biomimetic micro-bulge structure to realize superhydrophobicity and large slip length, Colloids Surf., A, 2023, vol. 664, p. 130972. https://doi.org/10.1016/j.colsurfa.2023.130972
Bin, Huang., Yingying, Yun., Kexin, Pu., Bowen, Zhao., and Kelin, Wu., Lubrication performance analysis of lead-bismuth internal-feedback bearings in the nuclear main pump system, Ann. Nucl. Energy, 2023, vol. 192, p. 109936. https://doi.org/10.1016/j.anucene.2023.109936
Sinev, N.M. and Udovichenko, P.M., Bessal’nikovye vodyanye nasosy (Sealless Water Pumps), Moscow: Atomizdat, 1972.
Beznosov, A.V., Bokov, P.A., Bokova, T.A., et al., Particularities of steel structural elements of reactor facilities with heavy liquid metal coolant, At. Energy, 2017, vol. 121, pp. 185–191.
Beznosov, A.V., Volkov, N.S., Bokov, P.A., Bokova, T.A., Marov, A.R., and Lvov, A.A., Experimentral studies into the performance of the lead coolant axial pump wet ends to justify main circulation pumps for the HMLC reactor plant circuits, Izv. Vyssh. Uchebn. Zaved., Yad. Energet., 2020, no. 2, pp. 64–72. https://doi.org/10.26583/npe.2020.2.06
Beznosov, A.V., Bokov, P.A., Bokova, T.A., et al., Experimental study of pump sliding bearings in relation to research and reactor circuits with heavy liquid metal coolant, Vopr. At. Nauki Tekh., Ser.: Yad.-Reakt. Konst., 2022, no. 1, pp. 113–124.
Voskresenskiy, V.A. and D’yakov, V.P., Raschet i proektirovanie opor skol’zheniye (zhidkostnaya smazka) (Calculation and Design of Sliding Supports (Liquid Lubrication)), Moscow: Energoatomizdat, 1984.
Hongli Chen, Zhao Chen, Chong Chen, Xilin Zhang, Haoran Zhang, Pengcheng Zhao, Kangli Shi, Shuzhou Li, Jingchao Feng, and Qin Zeng, Conceptual design of a small modular natural circulation lead cooled fast reactor SNCLFR-100, Int. J. Hydrogen Energy, 2016, pp. 7158–7168. https://doi.org/10.1016/j.ijhydene.2016.01.101
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The presented results were obtained within the framework of a state assignment in the field of scientific activity (topic no. FSWE-2023-0005 Features and Specifics of the Use of Heavy Liquid Metal Coolants in Fast Neutron Reactor Plants).
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Volkov, N.S., Marov, A.R., Bokova, T.A. et al. Research on the Applicability of the Double Reciprocating Slit Throttling Bearing in a Lead Coolant Environment. J. Frict. Wear 44, 309–312 (2023). https://doi.org/10.3103/S1068366623050100
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DOI: https://doi.org/10.3103/S1068366623050100