naa a22 4500 510761275 CHVBK 20180411083140.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1134/S0040601513090127 doi (NATIONALLICENCE)springer-10.1134/S0040601513090127 A modernized high-pressure heater protection system for nuclear and thermal power stations [Elektronische Daten] [F. Svyatkin, N. Trifonov, M. Ukhanova, V. Tren'kin, V. Koltunov, A. Borovkov, O. Klyavin] 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. Pleiades Publishing, Ltd., 2013 high-pressure heater protection system nationallicence tube rupture nationallicence admission valve nationallicence false operation nationallicence surge tanks nationallicence level measurement nationallicence Svyatkin F. NPO Central Boiler-Turbine Institute, Atamanskaya ul. 3/6, 191167, St. Petersburg, Russia aut Trifonov N. NPO Central Boiler-Turbine Institute, Atamanskaya ul. 3/6, 191167, St. Petersburg, Russia aut Ukhanova M. NPO Central Boiler-Turbine Institute, Atamanskaya ul. 3/6, 191167, St. Petersburg, Russia aut Tren'kin V. ZiOMAR Engineering Company, Zheleznodorozhnaya ul. 2, 142103, Podolsk, Moscow oblast, Russia aut Koltunov V. ZiOMAR Engineering Company, Zheleznodorozhnaya ul. 2, 142103, Podolsk, Moscow oblast, Russia aut Borovkov A. St. Petersburg State Polytechnic University, Politekhnicheskaya ul. 29, 195251, St. Petersburg, Russia aut Klyavin O. St. Petersburg State Polytechnic University, Politekhnicheskaya ul. 29, 195251, St. Petersburg, Russia aut Thermal Engineering Springer US; http://www.springer-ny.com 60/9(2013-09-01), 635-642 0040-6015 60:9<635 2013 60 11509 https://doi.org/10.1134/S0040601513090127 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0040601513090127 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Svyatkin F. NPO Central Boiler-Turbine Institute, Atamanskaya ul. 3/6, 191167, St. Petersburg, Russia aut NATIONALLICENCE 700 1- Trifonov N. NPO Central Boiler-Turbine Institute, Atamanskaya ul. 3/6, 191167, St. Petersburg, Russia aut NATIONALLICENCE 700 1- Ukhanova M. NPO Central Boiler-Turbine Institute, Atamanskaya ul. 3/6, 191167, St. Petersburg, Russia aut NATIONALLICENCE 700 1- Tren'kin V. ZiOMAR Engineering Company, Zheleznodorozhnaya ul. 2, 142103, Podolsk, Moscow oblast, Russia aut NATIONALLICENCE 700 1- Koltunov V. ZiOMAR Engineering Company, Zheleznodorozhnaya ul. 2, 142103, Podolsk, Moscow oblast, Russia aut NATIONALLICENCE 700 1- Borovkov A. St. Petersburg State Polytechnic University, Politekhnicheskaya ul. 29, 195251, St. Petersburg, Russia aut NATIONALLICENCE 700 1- Klyavin O. St. Petersburg State Polytechnic University, Politekhnicheskaya ul. 29, 195251, St. Petersburg, Russia aut NATIONALLICENCE 773 0- Thermal Engineering Springer US; http://www.springer-ny.com 60/9(2013-09-01), 635-642 0040-6015 60:9<635 2013 60 11509 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer