轴伸贯流式机组设计优化OA

The speed of tubular turbines is very low,and the speed increase arrangement can effectively reduce the generator size.To simplify the unit structure and reduce the construction cost of hydropower stations,this paper takes Chengbu DZ Hydropower Station as an example to provide a design optimization approach for tubular turbines.First,based on the calculation of unit parameters for Chengbu DZ Hydropower Station,the overall design scheme is determined.Then,the general layout and structural design are carried out.Furthermore,the speed increaser,turbine guide bearing,draft tube elbow,and vane seal are optimized.After optimization,the powerhouse size is smaller,the unit weight is lighter,and the control system is simpler.These enhancements significantly contribute to savings in civil construction investment,reduction in unit costs,easier unit installation,maintenance,and repair,and improved overall safety and stability of the units.This design optimization approach can serve as a reference for similar hydro-generator projects.