Extending the service life of steam turbines using the systems for cooling the thermally stressed parts of high- and intermediate-pressure cylinders
Tóm tắt
The problem of extending the service life of a large fleet of operating steam turbines is considered. A method for reducing the damageability of the most thermally stressed parts of steam turbines with capacities ranging from 100 to 800 MW is demonstrated. Data on putting in use cooling systems and on their effectiveness in solving the problem of extending the service life of such turbines are presented.
Tài liệu tham khảo
L. P. Safonov, V. S. Shargorodskii, A. N. Kovalenko, et al., “Fitting the Elements of 200–800-MW Turbines with Forced Cooling Systems,” Tyazh. Mashinostr., No. 1, 27–34 (1996).
L. A. Khomenok, V. S. Shargorodskii, S. Sh. Rozenberg, et al., “Achieving More Reliable Operation and Extending the Service Life of the High- and Intermediate-Pressure Rotors of the K-210-130 Turbines of LMZ Installed at Bulgarian Cogeneration Stations,” Elektr. Stn., No. 9, 63–67 (2001).
RTM (Guiding Document) 108.020.16-83: Calculation of Temperature Fields in the Rotors and Shells of a Steam Turbine (NPO TsKTI, Leningrad, 1985) [in Russian].
V. S. Shargorodskii, L. A. Khomenok, I. S. Leonova, and I. V. Chikileva, “A Steam Turbine Unit,” RF Patent No. 2319843, Otkr., Izobret., No. 8 (2008).
L. A. Khomenok, I. S. Leonova, V. V. Bozhko, et al., “The Double-Flow Cylinder of a Steam Turbine Unit,” RF Patent No. 2375586, Otkr., Izobret., No. 34 (2009).
V. S. Shargorodskii, L. A. Khomenok, S. Sh. Rozenberg, and A. N. Kovalenko, “Improving the Technical Level of Steam Turbines through Fitting Them with Forced Steam Rotor Cooling Systems,” Elektr. Stn., No. 1, 30–36 (1999).
V. S. Shargorodskii, L. A. Khomenok, S. Sh. Rozenberg, et al., “The Development of a Forced Steam Cooling System for the High-Pressure Rotor of a T-100/120–130 Cogeneration Turbine of TMZ,” Trudy NPO TsKTI, Issue 283, 138–146 (2002).
V. S. Shargorodskii, L. A. Khomenok, and V. V. Bozhko, “A Device for Cooling Elements Used in the Flow Path of a Steam Turbine,” RF Patent No. 2154168, Otkr., Izobret., No. 22 (2000).
L. P. Safonov, K. P. Seleznev, and A. N. Kovalenko, Thermal State of Highly Maneuverable Steam Turbines (Mashinostroenie, Leningrad, 1983) [in Russian].
V. F. Rezinskikh, G. D. Avrutskii, M. V. Fedorov, and S. A. Bykov, “Extending the Service Life of the T-250/300-240 Turbines of UTMZ Operating at OAO Mosenergo,” Elektr. Stn., No. 6, 4–8 (2006).