Steam turbine

• Main Authors: YAMASHITA, SHOKI, YOSHIFUJI KIICHI
• Format: Patent
• Language: Chinese; English
• Published: 07.06.2024
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ACCUMULATORS; STEAM ENGINE PLANTS; STEAM ENGINES; WEAPONS

A steam turbine according to at least one embodiment of the present invention is provided with an outer cylinder. A steam turbine according to at least one embodiment of the present invention is provided with an annular member which is a single member provided on the inside in the radial direction of an outer cylinder and in which are formed: a sealing region in which a sealing device for sealing a gap between the outer peripheral surface of a rotor and the member is disposed; a rear-stage stator blade holding region for holding a rear-stage stator blade; and an inner cylinder region connecting the sealing region and the rear stage stator blade holding region. A steam turbine according to at least one embodiment of the present invention is provided with a preceding stage blade ring which is attached to an annular member and holds a preceding stage stator blade. 本发明的至少一实施方式所涉及的蒸汽涡轮具备外汽缸。本发明的至少一实施方式所涉及的蒸汽涡轮具备环状部件，所述环状部件为设置于外汽缸的径向内侧的单一部件，形成有：密封区域，配置有密封转子的外周面与该部件之间的间隙的密封装置；后级静叶片保持区域，保持后级静叶片；及内汽缸区域，连接密封区域和后级静叶片保持区