LAST STAGE OF WET STEAM TURBINE Russian patent published in 2015 - IPC F01D25/32 F01D5/28 F01D9/02 

FIELD: machine building.

SUBSTANCE: last stage of wet steam turbine contains diaphragm made out of top and bottom parts, each of them contains a body, rim, nozzle array, made by hollow guide vanes, and internal and external binding bands. On the diaphragm rim at side of steam entry and steam output, and peripheral zone of the diaphragm body at side of the steam entry the moisture draining elements are installed.

EFFECT: increased efficiency of moisture drainage during operation of wet steam turbine under conditions of high humidity before guide vanes of last stages, thus ensuring efficiency increasing Increased effectiveness of moisture drainage also ensures mitigation of danger of increased wet steam erosion of elements of the through flow part, and first of all of the work blades.

8 cl, 3 dwg