Skip to main content
Log in

Nuclear-Magnetic Flowmeter-Relaxometers for Monitoring Coolant and Feedwater Flow and Status in Npp

  • Published:
Atomic Energy Aims and scope

The characteristic operational features of different flowmeters and devices for measuring the coolant and feedwater flows in the loops of nuclear steam generating facilities (NSGF) currently operating in NPP are analyzed. A new design has been developed for labeled nuclear-magnetic flowmeter-relaxometers with a new flow measuring regime. This regime and other new structural solutions in the new devices have made it possible to perform measurements with accuracy to within <1%. The results of measurements of the flow and the longitudinal and transverse relaxation times for different fl owing media at different temperatures are presented. It is shown that the developed labeled nuclear-magnetic flowmeter-relaxometer is an expedient tool for monitoring the parameters of the coolant and feedwater in the NSGF loops.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. D. A. Klinov, A. V. Gulevich, V. S. Kagramanyan, et al., “Challenges and motivation for the development of sodium fast reactors in modern conditions,” At. Energ., 125, No. 3, 131–135 (2018); Atomic Energy, 125, No. 3, 351–360 (2018).

  2. V. V. Ignatiev, M. V. Kormilitsyn, L. A. Kormilitsyna, et al., “Molten-salt reactor for the closure of the nuclear fuel cycle for all actinides,” At. Energ., 125, No. 5, 251–255 (2018); Atomic Energy, 125, No. 5, 372–378 (2018).

  3. V. V. Davydov and V. I. Dudkin, “On the formation of a nutation line under conditions of magnetic fi eld modulation,” Rus. Phys. J., 59, No. 7, 1008–1015 (2016). 279

  4. A. V. Pushnov, “Measurement of the fl ow rate of a two-phase fl ow by a coriolis flowmeter,” Izmer. Tekhn., 56, No. 4, 45–48 (2013); Measur. Techn., 56, No. 4, 421–425 (2013).

  5. I. D. Vel’t and Yu. V. Mikhailova, “Magnetic fl owmeter of molten metals,” Izmer. Tekhn., 56, No. 3, 24–28 (2013); Measur. Techn., 56, No. 3, 283–288 (2013).

  6. V. V. Davydov, “Some specifi c features of the NMR study of fl uid fl ows,” Opt. Spectrosc., 121, No. 1, 18–24 (2016).

    Article  ADS  Google Scholar 

  7. I. R. Suslov and I. A. Lyamtsev, “Hybrid method in shielding calculation,” At. Energ., 125, No. 2, 74–78 (2018); Atomic Energy, 125, No. 2, 118–122 (2018).

  8. A. V. Semenikhin, Y. V. Saunin, and S. I. Ryasnyi, “Method of determining the reliability of real-time in-reactor monitoring of VVER,” At. Energ., 124, No. 1, 8–13 (2018); Atomic Energy, 124, No. 1, 8–13 (2018).

  9. I. D. Vel’t, E. A. D’yakonova, Yu. V. Mikhailova, and N. V. Terekhina, “Magnetic flowmeter for fast sodium reactors,” At. Energ., 122, No. 4, 203–209 (2017); Atomic Energy, 122, No. 4, 243–251 (2017).

  10. V. V. Davydov, V. I. Dudkin, and A. Yu. Karseev, “Governance of the nutation line contour in nuclear-magnetic flowmeter,” Rus. Phys. J., 58, No. 2, 146–152 (2015).

    Article  Google Scholar 

  11. V. A. Nasonov, E. P. Ryazantsev, A. V. Taliev, and A. F. Yashin, “Water velocity determination in the gaps of IRT-3M, -4M fuel assemblies,” At. Energ., 110, No. 6, 317– 321 (2011); Atomic Energy, 110, No. 6, 389–394 (2011).

  12. V. V. Davydov, V. I. Dudkin, and N. S. Myazin, “Nutation line shape for the nonstationary regime of magnetic resonance flowmeter-relaxometer,” J. Com. Technol. Electron., 61, No. 1, 1159–1165 (2016).

    Article  Google Scholar 

  13. V. V. Davydov, V. I. Dudkin, and A. Yu. Karseev, “A compact marked nuclear-magnetic fl owmeter for measurement of rapidly varying flow rates of liquid,” Measur. Techn., 58, No. 1, 317–322 (2015).

    Article  Google Scholar 

  14. V. V. Davydov, V. I. Dudkin, N. S. Myazin, and V. Yu. Rud’, “On the possibility of studying condensed media in the express mode using the nuclear-magnetic resonance method,” Instrum. Exper. Techn., 61, No. 1, 40–147 (2018).

  15. S. V. D’yachenko, I. S. Kondrashkova, and A. I. Zhernovoi, “NMR studies of the sedimentation of ferromagnetic nanoparticles in a magnetic fluid,” Techn. Phys., 62, No. 1, 1602–1604 (2017).

    Article  ADS  Google Scholar 

  16. V. V. Davydov, “Control of the longitudinal relaxation time T1 of a flowing liquid in NMR flowmeters,” Rus. Phys. J., 42, No. 9, 822–825 (1999).

    Article  Google Scholar 

  17. A. M. Anisimov, I. V. Vitkovsky, M. M. Golovanov, et al., “Electromagnetic pumps for BN-800,” At. Energ., 112, No. 6, 362–363 (2012); Atomic Energy, 112, No. 6, 443–446 (2012).

  18. A. V. Reshetnikov, V. P. Koverda, V. N. Skokov, et al., “Water fl ow rate pulsations with a fl icker power spectrum in a commercial sodium steam generator,” At. Energ., 98, No. 2, 105–110 (2005); Atomic Energy., 98, No. 2, 97–102 (2005).

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to V. V. Davydov.

Additional information

Translated from Atomnaya Énergiya, Vol. 127, No. 5, pp. 250–255, November, 2019.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Davydov, V.V., Myazin, N.S. & Kiryukhin, A.V. Nuclear-Magnetic Flowmeter-Relaxometers for Monitoring Coolant and Feedwater Flow and Status in Npp. At Energy 127, 274–279 (2020). https://doi.org/10.1007/s10512-020-00623-5

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10512-020-00623-5

Navigation