On the Question of Rational Design of the Low-Pressure Flow Channel of Turbines with Heating Steam Extraction

The development and production of high-performance turbines of various types is an important task of power engineering. The main equipment of thermal power plants in the Russian Federation are steam turbines with heating steam extraction. The flow channel of such turbines consists of several parts, one of which is a low-pressure section that is located behind the extraction chamber. The design of this section is an independent and complex task. In the literature, this issue is given insufficient attention. Raw data including the steam flow rate, which is unknown, is required for designing the low-pressure section. To address this issue, the design versions of the turbine low-pressure section oriented to different steam flow rates are considered in this article. Using the numerical analysis of variable operating modes of the design versions, the most effective design is selected, and a corresponding calculated steam flow rate is determined. The results of the study can be used for designing new turbines for power plants.

References

[1] Shcheglyayev A.V. Parovyye turbiny [Steam turbines]. B. 1, b. 2. Moscow, Energoatomizdat publ., 1993. 796 p.

[2] Kirillov I.I., Ivanov V.A., Kirillov A.I. Parovyye turbiny i paroturbinnyye ustanovki [Steam turbines and steam turbine units]. Leningrad, Mashinostroyeniye publ., 1978. 276 p.

[3] Benenson E.I., Ioffe L.S. Teplofikatsionnyye parovyye turbiny [Heating steam turbines]. Moscow, Energoatomizdat publ., 1986. 264 p.

[4] Parovyye turbiny i turboustanovki [Steam turbines and turbo-installations]. OAO “Kaluzhskiy turbinnyy zavod”. Available at: www.oaoktz.ru (accessed 2 September 2018).

[5] Zhinov A.A. Kompleks programm dlya rascheta osevoy parovoy turbiny po srednemu diametru [A set of programs for calculating an axial steam turbine on an average diameter]. Moscow, Bauman Press, 1997. 20 p.

[6] Eliseyev Yu.S., Manushin E.A., Osipov M.I. Teoriya i proyektirovaniye ga-zoturbinnykh i kombinirovannykh ustanovok [Theory and design of gas turbine and combined plants]. Moscow, Bauman Press, 2004. 640 p.

[7] Trukhniy A.D., Krupennikov B.I., Petrunin S.V. Atlas konstruktsiy detaley turbin [Atlas of the details of turbines]. Moscow, MEI publ., 2000. 148 p.

[8] Trukhniy A.D., Lomakin B.V. Teplofikatsionnyye parovyye turbiny i turbo-ustanovki [Heating steam turbines and turbine units]. Moscow, MEI publ., 2002. 539 p.

[9] Kostyuk A.G., Frolov V.V., Bulkin A.E., Trukhniy A.D. Turbiny teplovykh i atomnykh elektrostantsiy [Turbines of thermal and nuclear power plants]. Moscow, MEI publ., 2001. 488 p.

[10] Bulkin A.E., Kostyuk A.G., Trukhniy A.D., Frolov V.V. Parovyye i gazovyye turbiny dlya elektrostantsiy [Steam and gas turbines for power plants]. Moscow, MEI publ., 2016. 557 p.

[11] Zhinov A.A. Raschet stupeney davleniya parovoy turbiny na peremennom rezhime [Calculation of pressure stages of a steam turbine in variable mode]. Kaluga, KF BMSTU publ., 2009. 7 p.

[12] Kasilov V.F. Peremennyye rezhimy ekspluatatsii parovykh turbin energoblokov TES [Variable modes of operation of steam turbines of power units TPP]. Available at: http://5fan.ru/wievjob.php?id=1092 (accessed 10 September 2018).

[13] Sakharov A.M. Teplovyye ispytaniya parovykh turbin [Thermal testing of steam turbines]. Moscow, Energoatomizdat publ., 1990. 233 p.

[14] Trukhniy A.D., Povarov O.A., Izyumov M.A., Malyshenko S.P. Osnovy so-vremennoy energetiki. T. 1. Sovremennaya teploenergetika [Fundamentals of modern energy. Vol. 1. Mo-dern power system]. Moscow, MEI publ., 2010. 493 p.

[15] Boyko E.A., Bazhenov K.V., Grachev P.A. Teplovyye elektricheskiye stantsii (Paroturbinnyye energeticheskiye ustanovki TES) [Thermal power plants (Steam turbine power plants TPP)]. Krasnoyarsk, IPTS KGTU publ., 2006. 153 p.