The Design Features of the High- and Intermediate-Pressure Cylinders with Forced Cooling for Turbines for Ultrasupercritical Steam Conditions

摘要

The systems for forced steam cooling of the high-pressure rotor and stator and the intermediate-pressure rotor of a steam turbine for ultrasupercritical steam conditions developed at the Central Boiler-Turbine Institute Research and Production Association jointly with Leningrad Metal Works (a branch of OAO Silovye Mashiny) are considered. The results from calculations of the thermally stressed state of the cooled elements of the high- and intermediate-pressure cylinders have shown that the design solutions adopted for forced cooling of these elements are efficient and promising.