Thermal Engineering

, Volume 60, Issue 9, pp 635–642 | Cite as

A modernized high-pressure heater protection system for nuclear and thermal power stations

  • F. A. Svyatkin
  • N. N. Trifonov
  • M. G. Ukhanova
  • V. B. Tren’kin
  • V. A. Koltunov
  • A. I. Borovkov
  • O. I. Klyavin
Steam-Turbine, Gas-Turbine, and Combined-Cycle Plants and Their Auxiliary Equipment

Abstract

Experience gained from operation of high-pressure heaters and their protection systems serving to exclude ingress of water into the turbine is analyzed. A formula for determining the time for which the high-pressure heater shell steam space is filled when a rupture of tubes in it occurs is analyzed, and conclusions regarding the high-pressure heater design most advisable from this point of view are drawn. A typical structure of protection from increase of water level in the shell of high-pressure heaters used in domestically produced turbines for thermal and nuclear power stations is described, and examples illustrating this structure are given. Shortcomings of components used in the existing protection systems that may lead to an accident at the power station are considered. A modernized protection system intended to exclude the above-mentioned shortcomings was developed at the NPO Central Boiler-Turbine Institute and ZioMAR Engineering Company, and the design solutions used in this system are described. A mathematical model of the protection system’s main elements (the admission and check valves) has been developed with participation of specialists from the St. Petersburg Polytechnic University, and a numerical investigation of these elements is carried out. The design version of surge tanks developed by specialists of the Central Boiler-Turbine Institute for excluding false operation of the high-pressure heater protection system is proposed.

Keywords

high-pressure heater protection system tube rupture admission valve false operation surge tanks level measurement 

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References

  1. 1.
    Thermal and Nuclear Power Stations: A Handbook, Ed. by V. A. Grigor’ev and V. M. Zorin (Energoizdat, Moscow, 1982) [in Russian].Google Scholar
  2. 2.
    ASME TDP-1-1998: Recommended Practices for the Prevention of Water Damage to Steam Turbines Used for Electric Power Generation.Google Scholar
  3. 3.
    V. M. Marushkin, S. S. Ivashchenko, and B. F. Vakulenko, High-Pressure Heaters for the Turbine Units of Thermal and Nuclear Power Stations (Energoatommash, Moscow, 1985) [in Russian].Google Scholar
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    G. V. Zhgulev, Startup and Adjustment of Power Units (Energiya, Moscow, 1978) [in Russian].Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2013

Authors and Affiliations

  • F. A. Svyatkin
    • 1
  • N. N. Trifonov
    • 1
  • M. G. Ukhanova
    • 1
  • V. B. Tren’kin
    • 2
  • V. A. Koltunov
    • 2
  • A. I. Borovkov
    • 3
  • O. I. Klyavin
    • 3
  1. 1.NPO Central Boiler-Turbine InstituteSt. PetersburgRussia
  2. 2.ZiOMAR Engineering CompanyPodolsk, Moscow oblastRussia
  3. 3.St. Petersburg State Polytechnic UniversitySt. PetersburgRussia

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