Shafting supporting structure and method of turbine generator set

• Main Authors: ZHANG KAI, ZUO YAQIANG, YU HAI, JIAO GUANGYUN, LI JIASONG, ZHANG LIJIAN, CUI YAOXIN, TANG JIAN, ZHANG JI
• Format: Patent
• Language: Chinese; English
• Published: 09.02.2024
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; ENGINE PLANTS IN GENERAL; GAS-TURBINE PLANTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; WEAPONS

According to the shafting supporting structure and method of the turbine generator set, rotors of a gas turbine and a generator are connected through a coupler to form a shafting, the shafting is supported through a bearing, the bearing is rigidly connected with a steel structure foundation through a bearing seat frame, and at least one flexible coupler is arranged between the gas turbine and the generator; the flexible coupling is used for compensating deformation of the steel structure foundation; the steel structure foundation is flexibly connected with a deck platform of the power generation ship through at least four spring supports, and the spring supports are used for isolating impact of impact loads such as sea waves on the steel structure foundation. The supporting method comprises the following steps: compensating thermal expansion of a rotor between a first dead point and a second dead point by an arranged first flexible coupling; thermal expansion displacement generated when the rotor between the