Steam turbine plant
AssigneeKabushiki Kaisha Toshiba
InventorsKenji Kumagai, Yukihiko Sawa, Koichi Watanabe
Life of this patent
Estimating the term…
Abstract
Steam turbine plant includes a steam generator, a plurality of low pressure turbines being driven by steam from the steam generator, a plurality of steam condensers to condense the steam from the low pressure turbines into condensed water and a feedwater line which supplies the condensed water to the steam generator as feedwater. The feedwater line including a plurality of feedwater heating lines connected in parallel. A number of feedwater heating lines being less than a number of steam condensers. Each of the feedwater heating lines includes at least one low pressure feedwater heater provided in at least one of the steam condensers to heat the condensed water by steam bled from the low pressure turbines.
Claims41
A steam turbine plant, comprising:
- a steam generator;
- a plurality of low pressure turbines being driven by steam from the steam generator;
- a plurality of steam condensers to condense the steam from the low pressure turbines into condensed water;
- a feedwater line which supplies the condensed water to the steam generator as feedwater, the feedwater line including a plurality of feedwater heating lines connected in parallel, a number of feedwater heating lines being less than a number of steam condensers;
- and
- a plurality of low pressure feedwater heaters;
- wherein each of the feedwater heating lines includes at least one low pressure feedwater heater provided in at least one of the steam condensers to heat the condensed water by steam bled from the low pressure turbines.
A steam turbine plant, comprising:
- a steam generator;
- a plurality of low pressure turbines being driven by steam from the steam generator;
- a plurality of steam condensers to condense the steam from the low pressure turbines into condensed water;
- a feedwater line which supplies the condensed water to the steam generator as feedwater, the feedwater line including a plurality of first feedwater heating lines connected in parallel and a plurality of second feedwater heating lines connected in parallel and coupled to the downstream side of the first feedwater heating lines, a first number of first feedwater heating lines being different than a second number of second feedwater heating lines;
- and
- a plurality of low pressure feedwater heaters;
- wherein each of the first and second feedwater heating lines includes at least one low pressure feedwater heater provided in at least one of the steam condensers to heat the condensed water by steam bled from the low pressure turbines.
A steam turbine plant, comprising:
- a steam generator;
- a plurality of low pressure turbines being driven by steam from the steam generator;
- a plurality of steam condensers to condense the steam from the low pressure turbines into condensed water;
- a feedwater line which supplies the condensed water to the steam generator as feedwater, the feedwater line including a plurality of feedwater heating lines connected in parallel;
- and
- a plurality of low pressure feedwater heaters;
- wherein each of the feedwater heating lines includes at least one low pressure feedwater heater provided in at least one of the steam condensers to heat the condensed water by steam bled from the low pressure turbines, and
- wherein a first number of low pressure feedwater heaters provided in a first steam condenser is different than a second number of low pressure feedwater heaters provided in a second steam condenser.
Dependencies are inferred from the claim text.