STEAM TURBINE KEY, KEY FOR THE STEAM TURBINE NOZZLE UNIT AND STEAM TURBINE

摘要

1. A key (140, 240, 340, 440, 540, 640, 740, 840) of a steam turbine, comprising:! the hook-shaped part (143), designed to interact with the edge part (161) of the diaphragm (130) of the steam turbine, wherein said keyway (140, 240, 340, 440, 540, 640, 740, 840) is made to ensure a non-rigid connection of the housing ( 120) a steam turbine with a specified diaphragm (130). ! 2. The key (140, 240, 340, 440, 540, 640, 740, 840) according to claim 1, in which the hook-shaped part (143) is a single structure. ! 3. The key (140, 240, 340, 440, 540, 640, 740, 840) according to claim 1, additionally containing the main part (142), while the hook-shaped part (143) has a first protrusion (144) passing, essentially perpendicular to said main body (142), and a second protrusion (146) extending substantially perpendicularly from said first protrusion (144). ! 4. The key (140, 240, 340, 440, 540, 640, 740, 840) according to claim 1, additionally containing the main part (142), while the hook-shaped part (143) extends outwardly from the main part (142 ) and in the upper direction to ensure interaction with the edge part (161) of the diaphragm (130) of the steam turbine. ! 5. The key (140, 240, 340, 440, 540, 640, 740, 840) according to claim 4, additionally having a protrusion (148) extending from the main part (142) and designed to interact with the upper surface (170) housing (120) of the steam turbine. ! 6. The key (140, 240, 340, 440, 540, 640, 740, 840) according to claim 5, in which the protrusion (148) and the hook-shaped part (143) extend in opposite directions from the main part (142). ! 7. The reference node (110, 210, 310, 410, 510, 610, 710, 810) of the nozzle apparatus of a steam turbine, comprising:! case (120) of the steam turbine, and! a semicircular segment (130) of the diaphragm, at least partially located in the specified housing (120)