EP3126641A1 - Method for heating up a steam turbine or for keeping a steam turbine hot - Google Patents
Method for heating up a steam turbine or for keeping a steam turbine hotInfo
- Publication number
- EP3126641A1 EP3126641A1 EP15719220.4A EP15719220A EP3126641A1 EP 3126641 A1 EP3126641 A1 EP 3126641A1 EP 15719220 A EP15719220 A EP 15719220A EP 3126641 A1 EP3126641 A1 EP 3126641A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure stage
- steam
- pressure
- stage
- steam turbine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 235000008694 Humulus lupulus Nutrition 0.000 claims 1
- 244000025221 Humulus lupulus Species 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000009931 pascalization Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/10—Heating, e.g. warming-up before starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
- F01K13/025—Cooling the interior by injection during idling or stand-by
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/31—Application in turbines in steam turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/70—Application in combination with
- F05D2220/74—Application in combination with a gas turbine
Definitions
- the invention relates to a method for heating or keeping warm a steam turbine, the at least one working at a on ⁇ catch or intermediate pressure level pressure stage, we ⁇ least one at a final pressure level, which is lower than the initial or intermediate pressure level, working, fluid technically Pressure stage downstream final pressure stage and at least one of the final pressure stage downstream capacitor, wherein an outside of the steam turbine he generated ⁇ steam is introduced into the pressure stage.
- the invention relates to a system for heating or keeping warm a steam turbine, the at least one working at an initial or intermediate pressure level ⁇ pressure, at least one at a final pressure level, which is lower than the initial or intermediate pressure level, ar ⁇ beitende, fluidtechnisch the Pressure stage downstream End ⁇ pressure stage and at least one of the final pressure stage nachge ⁇ switched capacitor.
- the invention relates to a power plant, in particular gas-and-steam turbine power plant or steam power plant, with at least one steam turbine.
- the components of a low pressure stage ei ⁇ ner steam turbine are not designed for discharge temperatures of 300 ° C. Therefore, when introducing a steam used for heating or keeping warm a steam turbine in the low-pressure stage significant restrictions on the compo ⁇ nents of the low pressure stage can arise, which can significantly shorten the life of the low pressure stage.
- the components of a low-pressure stage can be cooled during warming up of a steam turbine, for example by means of a water injection (so-called hood injection) and / or by means of a two-phase injection.
- hood injection water injection
- the object of the invention is to enable heating or keeping warm a steam turbine at a lower cost.
- the steam introduced into the steam turbine or its pressure stage is not passed through the final pressure stage.
- the pressure stage may be a medium-pressure stage of a three-stage steam turbine, in which the steam is introduced directly into the medium-pressure stage of the steam turbine or at which the steam is introduced into a high-pressure stage of the steam turbine upstream of the intermediate-pressure stage and from there into the medium-pressure stage.
- the final pressure stage can be designed here as a low-pressure stage of the steam turbine.
- the compression can be downstream low-pressure stage of the steam turbine, a high pressure stage ei ⁇ ner two-stage steam turbine and the End horrin one of the high-pressure stage.
- a liquid contained in the vapor can be condensed and ei ⁇ nem liquid circulation are supplied in order to be used again for the generation of steam can.
- the condensed liquid can be used or kill ⁇ leads.
- the method according to the invention can be used for heating or keeping warm a steam turbine of a steam power plant or a combined cycle power plant. The steam is released after flowing through the pressure stage
- Suction pressure stage by means of negative pressure. This provides a simple and effective way to dissipate the vapor from the pressure stage. For extracting the vapor from the
- Pressure stage can be arranged at the pressure stage, a suction connection, which is fluid-conductively connected to the condenser.
- a suction connection can be arranged on an overflow line between the pressure stage and the final pressure stage or at a discharge steam line which opens into the final pressure stage.
- the negative pressure can be generated and monitored by appropriate means, and set, which is for this purpose driven ent ⁇ speaking during the heating or hot holding the steam turbine or activated.
- the vapor is sucked out of the pressure stage by means of at least one blower.
- a suction side of the blower is in this case facing the pressure stage, while a pressure side of the blower faces the condenser.
- Means disposed in a transfer conduit between the pressure stage and the throttle valve is preferably Endyaklace CLOSED ⁇ sen during the introduction of the steam in the pressure stage. This can prevent the steam from entering the final pressure stage. In addition, the effectiveness of a ⁇ From suction of steam from the pressure stage is increased because a back flow of fluid is prevented from Endyaklace the suctioning of steam.
- the system according to the invention for heating or keeping warm a steam turbine, the at least one working at an initial or intermediate pressure level, at least one at a final pressure level, which is lower than the initial ⁇ or intermediate pressure level, working fluidly downstream of the pressure stage final pressure stage and at least one the final pressure stage downstream capacitor comprises:
- the device may be designed to generate auxiliary steam, sealing steam or the like.
- the device has at least one means for drawing off the vapor from the pressure stage.
- the means may be, for example, a fan or blower.
- the system comprises at least one formed by means disposed in a transfer conduit between the pressure stage and the throttle Enddrucklane Absperrein ⁇ device which can be closed during the introduction of the steam in the pressure stage.
- the system may include an electronic controller for driving the device, the device, and the shut-off device that controls these components of the system as described above.
- the power plant according to the invention in particular gas and steam turbine power plant or steam power plant, comprises at least one steam turbine and at least one system according to one of the aforementioned embodiments or any combination thereof.
- gas and steam turbine power plant or steam power plant comprises at least one steam turbine and at least one system according to one of the aforementioned embodiments or any combination thereof.
- FIG. 1 is a schematic representation of an embodiment for a system according to the invention.
- the figure shows a schematic representation of an exporting ⁇ approximately example of an inventive system 1 for Andozensr ⁇ men or keeping warm a three-stage steam turbine 2, the one to an initial pressure level or level of high pressure processing ⁇ tend high-pressure stage 3, a working on an intermediate level of pressure or medium pressure level pressure stage 4 or middle ⁇ pressure stage, one on a final pressure level or low pressure ⁇ level working, fluidly downstream of the pressure stage 4 final pressure stage 5 and one of the final pressure stage 5 after ⁇ connected capacitor 6 has.
- the high pressure stage 3, the pressure stage 4 and the End foundedch 5 are mechanically coupled via a ge ⁇ my same rotor shaft.
- the system 1 comprises a device 8 for generating a
- the device 8 has a steam generation unit 9, which generates the steam as main product or by-product. Further comprising the Einrich- tung 8 is an opening into the pressure stage 4 line 10, in which an electrically controllable valve 11 is arranged wel ⁇ ches for heating up or keeping warm the steam turbine 2 is opened.
- the system 1 further comprises a device 12 for discharging the steam after flowing through the pressure stage 4 or medium pressure stage from the pressure stage 4 and for directly feeding the derived from the pressure stage 4 steam bypassing the final pressure stage 5 and low pressure stage to the condenser 6.
- the device 12 comprises a means 13 in the form of a Geblä ⁇ ses for sucking the steam from the pressure stage 4, which is arranged in a suction line 14 of the device 12.
- the Suction line 14 starts directly at the pressure stage 4.
- a suction line 15 shown in phantom may be present, which connects an overflow line 16 between the pressure stage 4 and the end pressure stage 5 in a fluid-conducting manner with the condenser 6.
- a throttle ge ⁇ formed shut-off device 17 is arranged, which is closed during the introduction of the steam in the pressure stage 4.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Turbines (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14171101.0A EP2952702A1 (en) | 2014-06-04 | 2014-06-04 | Method for heating or maintaining the temperature of a steam turbine |
PCT/EP2015/059276 WO2015185292A1 (en) | 2014-06-04 | 2015-04-29 | Method for heating up a steam turbine or for keeping a steam turbine hot |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3126641A1 true EP3126641A1 (en) | 2017-02-08 |
Family
ID=50884741
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14171101.0A Withdrawn EP2952702A1 (en) | 2014-06-04 | 2014-06-04 | Method for heating or maintaining the temperature of a steam turbine |
EP15719220.4A Withdrawn EP3126641A1 (en) | 2014-06-04 | 2015-04-29 | Method for heating up a steam turbine or for keeping a steam turbine hot |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14171101.0A Withdrawn EP2952702A1 (en) | 2014-06-04 | 2014-06-04 | Method for heating or maintaining the temperature of a steam turbine |
Country Status (7)
Country | Link |
---|---|
US (1) | US10100665B2 (en) |
EP (2) | EP2952702A1 (en) |
JP (1) | JP6339242B2 (en) |
KR (1) | KR101965660B1 (en) |
CN (1) | CN106414912B (en) |
RU (1) | RU2650239C1 (en) |
WO (1) | WO2015185292A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014221563A1 (en) * | 2014-10-23 | 2016-04-28 | Siemens Aktiengesellschaft | Method for shortening the startup process of a steam turbine |
CN111042875B (en) * | 2019-12-13 | 2023-02-28 | 上海电气电站设备有限公司 | Steam turbine warming-up method and system |
US11913361B2 (en) | 2020-11-30 | 2024-02-27 | Rondo Energy, Inc. | Energy storage system and alumina calcination applications |
IL303311A (en) | 2020-11-30 | 2023-07-01 | Rondo Energy Inc | Energy storage system and applications |
US11913362B2 (en) | 2020-11-30 | 2024-02-27 | Rondo Energy, Inc. | Thermal energy storage system coupled with steam cracking system |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE607273C (en) | 1934-12-20 | Siemens Schuckertwerke Akt Ges | Device for keeping steam turbines warm during breaks in operation | |
JPS59192806A (en) | 1983-04-15 | 1984-11-01 | Hitachi Ltd | Stretch-out running of twin-shaft steam turbine and device therefor |
JPS60164606A (en) | 1984-02-06 | 1985-08-27 | Hitachi Ltd | Piping warming up control device |
JPS62159705A (en) | 1986-01-09 | 1987-07-15 | Fuji Electric Co Ltd | Intermediate pressure turbine warming apparatus of reheating condensing turbine |
JPH0751887B2 (en) | 1986-04-09 | 1995-06-05 | 株式会社日立製作所 | Turbin overspeed suppression system |
JPS63297705A (en) | 1987-05-29 | 1988-12-05 | Toshiba Corp | Starter for steam turbine |
SU1506154A1 (en) | 1988-01-07 | 1989-09-07 | Всесоюзный Теплотехнический Научно-Исследовательский Институт Им.Ф.Э.Дзержинского | Method of starting power uni containing boiler and turbine |
US6405537B1 (en) * | 1996-06-26 | 2002-06-18 | Hitachi, Ltd. | Single shaft combined cycle plant and operating thereof |
EP0908603B1 (en) | 1996-06-26 | 2004-11-03 | Hitachi, Ltd. | Single shaft combined cycle plant |
EP1191192A1 (en) * | 2000-09-26 | 2002-03-27 | Siemens Aktiengesellschaft | Method and apparatus for preheating and dewatering of turbine stage steam conduits |
KR20090019816A (en) * | 2006-05-05 | 2009-02-25 | 플라스코에너지 아이피 홀딩스, 에스.엘., 빌바오, 샤프하우젠 브랜치 | A gas conditioning system |
DE102009021924B4 (en) * | 2009-05-19 | 2012-02-23 | Alstom Technology Ltd. | Method for primary control of a steam turbine plant |
EP2305364A1 (en) * | 2009-09-29 | 2011-04-06 | Alstom Technology Ltd | Power plant for CO2 capture |
DE102010042405B4 (en) | 2010-10-13 | 2024-06-27 | Robert Bosch Gmbh | Device and method for utilizing waste heat from an internal combustion engine |
-
2014
- 2014-06-04 EP EP14171101.0A patent/EP2952702A1/en not_active Withdrawn
-
2015
- 2015-04-29 WO PCT/EP2015/059276 patent/WO2015185292A1/en active Application Filing
- 2015-04-29 US US15/312,930 patent/US10100665B2/en not_active Expired - Fee Related
- 2015-04-29 EP EP15719220.4A patent/EP3126641A1/en not_active Withdrawn
- 2015-04-29 KR KR1020167033544A patent/KR101965660B1/en active IP Right Grant
- 2015-04-29 RU RU2016150530A patent/RU2650239C1/en active
- 2015-04-29 CN CN201580029589.0A patent/CN106414912B/en not_active Expired - Fee Related
- 2015-04-29 JP JP2016571126A patent/JP6339242B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2015185292A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN106414912B (en) | 2018-01-26 |
JP2017522483A (en) | 2017-08-10 |
KR20160147034A (en) | 2016-12-21 |
EP2952702A1 (en) | 2015-12-09 |
RU2650239C1 (en) | 2018-04-11 |
KR101965660B1 (en) | 2019-04-04 |
US20170204741A1 (en) | 2017-07-20 |
CN106414912A (en) | 2017-02-15 |
WO2015185292A1 (en) | 2015-12-10 |
JP6339242B2 (en) | 2018-06-06 |
US10100665B2 (en) | 2018-10-16 |
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Legal Events
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Extension state: BA ME |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS ENERGY GLOBAL GMBH & CO. KG |
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