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US 8,525,362 B2Granted
Steam turbine plant
AssigneeALSTOM Technology Ltd
InventorsMaurus Herzog, Wilhelm Reiter
Life of this patent
Estimating the term…
Abstract
A single shaft steam turbine plant is disclosed with a first and a second low pressure steam turbine located at either end of the shaft. A generator and at least one high-pressure steam turbine are located on the shaft between low pressure steam turbines.
Claims14
A steam turbine plant comprising:
- a shaft with first and second ends;
- a first low pressure steam turbine and a second low pressure steam turbine at the first and second ends of the shaft respectively;
- a generator on the shaft between the first low pressure steam turbine and the second low pressure steam turbine;
- and
- a steam turbine train, on the shaft between the first and second low pressure steam turbines, the steam turbine train including at least one high-pressure steam turbine.
2 more elements
A method of operating a steam turbine power plant which includes:
- a shaft with first and second ends;
- a first low pressure steam turbine and a second low pressure steam turbine at the first and second ends of the shaft respectively;
- a generator on the shaft between the first low pressure steam turbine and second low pressure steam turbines;
- a steam turbine train, on the shaft between the first and second low pressure steam turbines, the steam turbine train including at least one high-pressure steam turbine;
- a first feed line, connecting the steam turbine train to the first low pressure steam turbine;
- and
- a first off-take, in the first feed line, for supplying steam to a high demand steam consumer;
- wherein the method comprises:
- identifying peak and non-peak electricity price periods;
- and
- selectively operating and closing the first off-take valve to supply steam to a high-demand customer during a non-peak period and not supply steam to the high demand customer during a peak period.
8 more elements
A method of operating a steam turbine power plant which includes:
- a shaft with first and second ends;
- a first low pressure steam turbine and a second low pressure steam turbine at the first and second ends of the shaft respectively;
- a generator on the shaft between the first low pressure steam turbine and second low pressure steam turbines;
- a steam turbine train, on the shaft between the first and second low pressure steam turbines, the steam turbine train including at least one high-pressure steam turbine;
- a first feed line, connecting the steam turbine train to the first low pressure steam turbine,
- a first off-take, in the first feed line, for supplying steam to a high demand steam consumer, wherein the method comprises:
- identifying peak and high and low grid demand periods;
- and
- selectively operating and closing the first off-take valve to supply steam to a high-demand customer during a high and low grid demand periods and not supply steam to the high demand customer during a peak period.
6 more elements
Dependencies are inferred from the claim text.