ICONE23-1955 EXPERIMENTAL RESEARCH AND DEVELOPMENT OF MAIN CIRCULATION PUMP BEARINGS IN REACTOR PLANTS USING HEAVY LIQUID-METAL COOLANTS

2015 ◽  
Vol 2015.23 (0) ◽  
pp. _ICONE23-1-_ICONE23-1
Author(s):  
A. Zudin ◽  
A. Beznosov ◽  
A. Chernysh ◽  
G. Prikazchikov
Keyword(s):  
Liquid Metal ◽  
Research And Development ◽  
Experimental Research ◽  
Heavy Liquid ◽  
Main Circulation Pump ◽  
Circulation Pump ◽  
Main Circulation

scholarly journals Calculation and experimental research in support of mass exchangers for providing specific oxygen regime in heavy liquid metal coolants (Pb, Pb Bi)

2014 ◽  
Vol 2014 (1) ◽  
pp. 160-171
Author(s):  
Radomir Shamil’evich Askhadullin ◽  
Pyotr Nikiforovich Martynov ◽  
Valery Ivanovich Rachkov ◽  
Aleksandr Yur’evich Legkikh
Keyword(s):  
Liquid Metal ◽  
Experimental Research ◽  
Heavy Liquid ◽  
Oxygen Regime

scholarly journals Experimental studies into the performance of the lead coolant axial pump wet ends to justify main circulation pumps for the HMLC reactor plant circuits

2020 ◽  
Vol 6 (3) ◽  
pp. 143-147
Author(s):  
Aleksandr V. Beznosov ◽  
Pavel A. Bokov ◽  
Aleksandr V. Lvov ◽  
Tatyana A. Bokova ◽  
Nikita S. Volkov ◽  
...  
Keyword(s):  
Liquid Metal ◽  
Qualitative Difference ◽  
Experimental Studies ◽  
Heavy Liquid ◽  
Outer Diameter ◽  
Reactor Plant ◽  
Impeller Blade ◽  
08Kh18n10t Steel ◽  
Main Circulation ◽  
Design Solutions

The paper presents the results of the studies to justify the design solutions for the main circulation pumps of the heavy liquid-metal cooled reactor plant circuits. A substantial difference has been shown in the performance of pumps for the heavy liquid-metal coolant transfer. The studies have confirmed the qualitative difference in the cavitation performance of coolants, the state of the gases and vapors they contain, the influence of supply and discharge devices, and the effects of the impeller blade section performance and geometry and the hub-tip ratio on the pump performance. The studies were performed based on NNSTU’s lead-cooled test facilities with the coolant temperature in a range of 440 to 550 °C and the coolant flow rate of up to 2000 t/h. The outer diameter of the impellers and the straightening devices was about 200 mm, and the thickness of the flat 08Kh18N10T-steel blades was 4.0 mm and that of the airfoil blades was up to 6.0 mm. The pump shaft speed changed in a stepped manner from 600 rpm to 1100 rpm after each 100 rpm. The studies were conducted to justify the engineering and design solutions for pumps as applied to conditions of small and medium plants with fast neutron lead cooled reactors currently under investigation at NNSTU (BRS-GPG). The experimental results can be recommended for use to design other HLMC transfer pumps.

The Development of the Technology for Producing Vessel Structures of the Main Circulation Pump for a BREST Reactor

2020 ◽  
Vol 11 (6) ◽  
pp. 1500-1503
Author(s):  
E. D. Blank ◽  
V. A. Guerasimov ◽  
M. G. Sharapov ◽  
A. N. Vodovozov ◽  
A. D. Kashtanov ◽  
...  
Keyword(s):  
Main Circulation Pump ◽  
Circulation Pump ◽  
Main Circulation ◽  
Brest Reactor

scholarly journals MODERNIZATION OF THE FLOW SECTION OF THE MAIN CIRCULATION PUMP GCN 22600-87

2018 ◽  
Vol 20 (7-8) ◽  
pp. 63-70
Author(s):  
E. A. Ivanov ◽  
V. A. Kalaev ◽  
S. A. Shumilin
Keyword(s):  
Design Solution ◽  
Flow Section ◽  
Pump Design ◽  
Main Circulation Pump ◽  
Circulation Pump ◽  
Ansys Cfx ◽  
Energy Indices ◽  
Hydrodynamic Calculations ◽  
Main Circulation ◽  
Flow Through

In the presented work, a new version of the design of the flow-through part of the main circulation pump for NPPs with increased energy indices is proposed. This design solution allows to increase the efficiency of the pump from 82 -83% to 88-89%. Numerical hydrodynamic calculations of the viscous fluid flow in the ANSYS CFX environment of various variants of the pump design have been performed: a spherical chamber with guide vanes, a spiral tap, a spiral tap with discharge openings in a spherical chamber (new design). As a result of the hydrodynamic calculations, the values of the hydraulic efficiency of the variants considered were obtained. As a result of the analysis of the pattern of the flow of the investigated variants, it is established that the proposed version of the pump with unloading holes has additional hydraulic losses due to circulation of the flow through them. The value of the circulation of the flow through the discharge openings is numerically obtained. The cause of the detected effect was investigated. As a result of the conducted research it is established that it is possible to further increase the efficiency of the proposed pump design by optimizing the geometry of the discharge openings.

Technology for producing vessel structures of the main circulation pump for BREST reactor

2020 ◽  
pp. 179-184
Author(s):  
E. D. Blank ◽  
V. A. Guerasimov ◽  
M. G. Sharapov ◽  
A. N. Vodovozov ◽  
A. D. Kashtanov ◽  
...  
Keyword(s):  
Pressure Chamber ◽  
Metal Consumption ◽  
Main Circulation Pump ◽  
Circulation Pump ◽  
Steel Sheets ◽  
Welded Structure ◽  
Main Circulation ◽  
Technological Documentation ◽  
Brest Reactor ◽  
Labor Consuming

One of the important joints of a liquid metal fast reactor is the main circulation pump. In the course of the present research, a preproduction model of the pressure chamber, the most labor-consuming unit of the main circulation pump, was manufactured. This complex welded structure was made of 10Kh15N9S3B3 (EP-302Sh) steel sheets; fixtures and accessories were also manufactured, and as a result the metal consumption of the structure decreased. Technological documentation was made for bending, stamping of parts of the pressure chamber, welding of components, their heat and mechanic treatment, and its assembling. According to the results of this work, the existing technological documentation was adjusted in the context of the new data for pressure chamber of the main pump.

scholarly journals Analisys of VVER-1000 main circulation pump condition under operation

2016 ◽  
Vol 2016 (4) ◽  
pp. 12-22 ◽  
Author(s):  
Sergei Terent’evich Leskin ◽  
Victor Ivanovich Slobodchuk ◽  
Aleksandr Sergeevich Shelegov
Keyword(s):  
Main Circulation Pump ◽  
Circulation Pump ◽  
Main Circulation
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