| 摘要 |
<p>Power plant for combustion of fuel in a fluidized bed, primarily a PFBC power plant. The plant includes a multistage steam turbine (13) and an intermediate superheater (12) for superheating steam between the turbine stages. The combustion chamber (2) is divided into a first and a second part (2a, 2b) by a wall (4) having one or more openings (42) which take/takes up a minor part of the cross-section in the bed region and makes possible a limited exchange of bed material. The first part (2a) includes a nest of boiler tubes (11) for generating steam. The second combustion chamber part (2b) includes a nest of boiler tubes (12) for intermediate superheating of steam between the turbine stages. The combustion chamber parts (2a, 2b) are each connected to a fuel supply system (20, 21, 22 and 23, 24, 25, respectively). The control of the superheating takes place by control means (62) which control the bed temperature in the second combustion chamber part (2b) by controlling the fuel supply to said combustion chamber part (2b). (Figure 2)</p> |
