Research on Dual-Machine Regenerative System With Constant Speed Generator for 1 000 MW Ultra-Supercritical Unit
The optimization of regenerative system is an important measure to improve the thermal economy of thermal power units.According to the characteristics of 1 000 MW ultra-supercritical steam turbine regenerative system,combined with the research of regenerative system at home and abroad,the scheme of dual-machine regen-erative system with constant speed generator is put forward,which uses a variable speed extraction back-pressure small steam turbine to drive the main feedwater pump.By conducting a comprehensive economic and technical comparison with the current mainstream conventional regenerative system,this paper explores the feasibility of a dual machine 12 stage regenerative system with a constant speed generator.
Dual-machine regenerative systemExtraction back-pressure small steam turbineHigh-pressure heaterExternal steam cooler
万方数据
维普
