IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0223840
(2011-09-01)
|
등록번호 |
US-8525362
(2013-09-03)
|
우선권정보 |
IT-MI2010A1599 (2010-09-03) |
발명자
/ 주소 |
- Herzog, Maurus
- Reiter, Wilhelm
|
출원인 / 주소 |
|
대리인 / 주소 |
Buchanan Ingersoll & Rooney PC
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
4 |
초록
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.
대표청구항
▼
1. 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
1. 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; anda 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. The steam turbine plant of claim 1, comprising: a first feed line, connecting the steam turbine train to the first low pressure steam turbine; anda first off-take, in the first feed line, for supplying steam to a high demand steam consumer. 3. The steam turbine plant of claim 2, comprising: a second feed line joining the steam turbine train to the second low pressure steam turbine; anda second off-take, in the second feed line, for supplying steam to a high demand steam consumer. 4. The steam turbine plant of claim 1, comprising: a first clutch, on the shaft, between the first low pressure steam turbine and the generator; anda second clutch, on the shaft, between the second low pressure steam turbine and the steam turbine train. 5. The steam turbine plant of claim 1, wherein the shaft does not include a clutch. 6. The steam turbine plant of claim 3, comprising: a first throttle valve, in the first feed line, downstream of the first off-take; anda second throttle valve, in the second feed line, downstream of the first off-take. 7. The steam turbine plant of claim 2, comprising: a first clutch, on the shaft, between the first low pressure steam turbine and the generator; anda second clutch, on the shaft, between the second low pressure steam turbine and the steam turbine train. 8. The steam turbine plant of any one of claim 3, comprising: a first clutch, on the shaft, between the first low pressure steam turbine and the generator; anda second clutch, on the shaft, between the second low pressure steam turbine and the steam turbine train. 9. The steam turbine plant of claim 2, wherein the shaft does not include a clutch. 10. The steam turbine plant of claim 3, wherein the shaft does not include a clutch. 11. The steam turbine plant of claim 8, comprising: a first throttle valve, in the first feed line, downstream of the first off-take; anda second throttle valve, in the second feed line, downstream of the second off-take. 12. The steam turbine plant of claim 10, comprising: a first throttle valve, in the first feed line, downstream of the first off-take; anda second throttle valve, in the second feed line, downstream of the second off-take. 13. 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; anda 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; andselectively 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. 14. 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; andselectively 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.
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