| 摘要 |
PROBLEM TO BE SOLVED: To provide a steam turbine power generation plant capable of further reducing the minimum load and enlarging operation mode without making a large modification and review of the design. SOLUTION: A condenser vacuum adjustment device 22 for adjusting the vacuum of a condenser 10 is constructed to inject air into the condenser 10 during operation in a range between the preset maximum load and minimum load when reduction of the minimum load is commanded. By thus intentionally reducing the vacuum of the condenser 10, an amount of evaporation in a boiler 1 of the steam turbine power generation plant is increased and the minimum feedwater flow rate of the boiler is ensured so that the minimum load can be further reduced. COPYRIGHT: (C)2007,JPO&INPIT
|
