STEAM TURBINE PLANT

• Main Authors: SHINOZAKI YUKIO, YAMASHITA KATSUYA
• Format: Patent
• Language: English
• Published: 16.02.2006
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; WEAPONS

PROBLEM TO BE SOLVED: To provide a steam turbine plant having a high-medium-pressure integral type structure which accommodates high-pressure and medium-pressure turbines in a turbine casing, wherein the realization of the high temperature of reheating steam supplied to the medium-pressure turbine is achieved. SOLUTION: In the steam turbine plant which has a high-medium-pressure integral type structure for accommodating a high-pressure turbine part 2 and a medium-pressure turbine part 3 in a turbine casing 1, when steam reversed from an outlet in a high-pressure turbine first stage 9a of a high-pressure turbine part 2 is supplied to wheels 18a, 18b in a medium-pressure turbine first stage 14a in the medium-pressure turbine part 3 through the medium of an intermediate gland part 16 provided so as to straddle the high-pressure turbine nozzle box 5 and the high-pressure and medium-pressure turbine parts 2, 3, a cooling steam supply means 23 for supplying cooling steam to the steam reversed from the outlet in the high-pressure turbine first stage 9a of the high pressure turbine part 2 to be mixed is provided to the intermediate gland part 16. COPYRIGHT: (C)2006,JPO&NCIPI