Mounting arrangement for a single shaft combined cycle system

• Main Author: KNUIJT, HANS (NMN)
• Format: Patent
• Language: English; French; German
• Published: 15.06.1994
• Edition: 5
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; STEAM ACCUMULATORS; STEAM ENGINE PLANTS; STEAM ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

A power generation system comprising a gas turbine (12), a steam turbine (14) and a generator (16) are mounted on a foundation (22) in substantial axial alignment and connected by a single shaft (20). A thrust bearing (24) is located on the shaft in one of the gas turbine or steam turbine. Whichever of the gas turbine and steam turbine contains the thrust bearing is flexibly secured to the foundation, and the other of the gas turbine and the steam turbine, as well as the generator, are rigidly secured to the foundation. A pair of rigid tie rods (34) also extend between the steam and gas turbines, parallel to the shaft, to maintain a predetermined axial distance between the turbines, while allowing relative movement in a plane perpendicular to the shaft.