FIELD: power plant engineering; designing flow path of steam-turbine low-pressure cylinder. SUBSTANCE: low-pressure path has last-but-one stage wheel placed in peripheral area of interstage gap and transparent annular screen. EFFECT: reduced loss due to uniform distribution of speed pattern at inlet of exhaust stage and improved reliability of turbine due to separation of coarsely dispersed water in peripheral area of interstage gap. 3 cl, 1 dwg
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