公开(公告)号：US5203159A

公开(公告)日：1993-04-20

申请号：US668203

申请日：1991-03-12

申请人： Naoto Koizumi ,  Asao Takashi ,  Shinichi Hoizumi ,  Yoshiki Noguchi ,  Toshihiko Sasaki

发明人： Naoto Koizumi ,  Asao Takashi ,  Shinichi Hoizumi ,  Yoshiki Noguchi ,  Toshihiko Sasaki

IPC分类号： F01K23/06 ,  F02C3/20

CPC分类号： F02C3/205 ,  F01K23/062 ,  Y02E20/16

摘要： A pressurized fluidized bed combustion combined cycle power plant has a gas turbine unit of single spindle type in which a turbine, driven by combustion gas from burning of coal in a pressurized fluidized bed combustion boiler, drives an electrical generator at constant speed and drives a compressor supplying compressed combustion air to the boiler. To permit partial load operation, a control arrangement is provided to effect, in dependence upon an operating load of the boiler, control of at least one of the flow rate of the combustion air into the boiler, and the operating pressure in the combustion chamber of the boiler. The control arrangement may be, for example, a valve controlling a by-pass flow of the combustion air and/or inlet guide vanes of the compressor.