Method and device for operating a steam power station comprising a steam turbine and a process steam consumer
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01K-013/00
F01K-017/00
출원번호
US-0000088
(2009-05-04)
등록번호
US-8776520
(2014-07-15)
우선권정보
EP-08011260 (2008-06-20)
국제출원번호
PCT/EP2009/055332
(2009-05-04)
§371/§102 date
20101220
(20101220)
국제공개번호
WO2009/153098
(2009-12-23)
발명자
/ 주소
Beul, Ulrich
Glos, Stefan
Heue, Matthias
Hofbauer, Thomas
Hoffacker, Ralf
Lückemeyer, Nils
Pieper, Norbert
Sievert, Roland
출원인 / 주소
Siemens Aktiengesellschaft
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
A method for operating a steam power station is provided. The steam turbine power station includes at least one steam turbine and a process steam consumer, wherein a steam mass flow is subdivided into a first partial mass flow and a second partial mass. In a first operating state, the first partial
A method for operating a steam power station is provided. The steam turbine power station includes at least one steam turbine and a process steam consumer, wherein a steam mass flow is subdivided into a first partial mass flow and a second partial mass. In a first operating state, the first partial mass flow is supplied to the steam turbine and the second partial mass flow is supplied to the process steam consumer. In a second operating state, at least part of the second partial mass flow is supplied to the steam turbine at least after the first turbine stages. A steam power station is also provided.
대표청구항▼
1. A method for operation of a steam power station, comprising: providing a steam turbine and a process steam consumer;subdividing a steam mass flow into a first mass flow element and a second mass flow element;supplying the first mass flow element to the steam turbine in a first operating mode and
1. A method for operation of a steam power station, comprising: providing a steam turbine and a process steam consumer;subdividing a steam mass flow into a first mass flow element and a second mass flow element;supplying the first mass flow element to the steam turbine in a first operating mode and in a second operating mode;supplying the second mass flow element to the process steam consumer in the first operating mode; andsupplying a first portion of the second mass flow element to the steam turbine to a second turbine stage which follows after a first turbine stage in a second operating mode,wherein the first operating mode is defined by the process steam consumer in full operation,wherein the second operating mode is defined by the process steam consumer either shut down or operating on a partial load, andwherein a determination of a subdivision of the steam mass flow into the first mass flow element and the second mass flow element is regulated as a function of the operating mode. 2. The method as claimed in claim 1, wherein the first portion of the second mass flow element is supplied to the steam turbine and a second portion is supplied to a bleed point on the steam turbine in the second operating mode. 3. The method as claimed in claim 1, wherein the entire second mass flow element is supplied to the steam turbine after the first turbine stage in the second operating mode. 4. The method as claimed in claim 1, wherein an upstream steam turbine is connected upstream of the steam turbine,wherein the upstream steam turbine is operated at a first pressure stage,wherein the steam turbine is operated at a second pressure stage, andwherein the first pressure stage is set to be higher than the second pressure stage. 5. The method as claimed in claim 4, wherein the steam turbine operated at the second pressure stage is operated as a low-pressure turbine. 6. The method as claimed in claim 3, wherein the second mass flow element is supplied to the steam turbine in a second turbine stage, taking into account a desired first ratio of an adjustable steam mass flow to a performance increase of the steam turbine. 7. The method as claimed in claim 1, wherein the first mass flow element is kept constant in both operating modes. 8. The method as claimed in claim 1, wherein the second mass flow element is used in the first operating mode in order to assist an absorption process of carbon dioxide from a flue gas. 9. A steam power station, comprising: a steam turbine including a first pressure stage and a second pressure stage;a process steam consumer; anda steam line connected to the first pressure stage splitting into a process steam line and an overflow line,wherein the process steam line is connected to the process steam consumer and the overflow line is connected to the second pressure stage, andwherein a bypass line is provided which connects the overflow line to the second pressure stage downstream from a first turbine stage of a plurality of turbine stages, such that steam may bypass the first turbine stage of the second pressure stage,wherein a first control valve is connected in the process steam line such that an amount of a steam mass flow supplied to the process steam consumer is regulated as a function of the operating state of the process steam consumer, andwherein the steam mass flow which is not supplied is in the form of excess steam. 10. The steam power station as claimed in claim 9, wherein a plurality of bypass lines are provided and connect the overflow line to the second pressure stage downstream from the first turbine stage with different turbine stages, such that steam may bypass the first turbine stage and is introduced at one of the plurality of turbine stages. 11. The steam power station as claimed in claim 10, wherein the second pressure stage is designed for a lower pressure than the first pressure stage. 12. The steam power station as claimed in claim 9, wherein the second pressure stage is designed for a lower pressure than the first pressure stage. 13. The steam power station as claimed in claim 9, wherein the second pressure stage is a steam turbine for low pressure. 14. The steam power station as claimed in claim 9, wherein a first control valve is connected in the process steam line such that an amount of a steam mass flow supplied is regulated as a function of the operating state of the process steam consumer, and wherein the steam mass flow which is not supplied is in the form of excess steam. 15. The steam power station as claimed in claim 9, wherein a second control valve is connected in the bypass line such that excess steam is introduced into the second pressure stage downstream from the first turbine stage in a controlled manner as a function of the operating state of the process steam consumer, such that the steam mass flow which is supplied to the first turbine stage of the steam turbine may be set to be constant. 16. The steam power station as claimed in claim 9, wherein the overflow line is connected to a bleed line such that a feed water preheater, which is connected to the bleed line, is supplied with steam from the overflow line during operation of the steam power station. 17. The steam power station as claimed in claim 9, wherein the process steam consumer is a separation apparatus for carbon dioxide.
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이 특허에 인용된 특허 (6)
Rollins, III, William S., High power density combined cycle power plant system.
Gilli Paul V. (Obere Teichstrasse 21/i 8010 Graz ATX) Beckmann Georg (Vienna ATX), Method and apparatus for peak-load coverage and stop-gap reserve in steam power plants.
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