FIELD: mechanical engineering; turbines.
SUBSTANCE: proposed regulating rotary diaphragm contains cylindrical radial nozzle fixed diaphragm of four-valve design covered with cylindrical ring being essentially rotary radial diaphragm. Regulating rotary diaphragm is made symmetrical, fixed diaphragm is provided with corrugation, and cylindrical ring contains rigid ridge. Fixed diaphragm and cylindrical ring are installed in middle part of low-pressure cylinder of turbine, Series T. Rigid ridge of cylindrical ring is arranged inside corrugation of fixed diaphragm. Invention improves economy and simplifies design of regulating rotary diaphragm and prevents steam wettening effects and requirement to reduce turbine load to "animate" diaphragm and to carry out machine turning of sealing belts at overhauls.
EFFECT: improved economy, simplified design of diaphragm.
5 dwg
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