EP2952702A1 - Verfahren zum Anwärmen oder Warmhalten einer Dampfturbine - Google Patents
Verfahren zum Anwärmen oder Warmhalten einer Dampfturbine Download PDFInfo
- Publication number
- EP2952702A1 EP2952702A1 EP14171101.0A EP14171101A EP2952702A1 EP 2952702 A1 EP2952702 A1 EP 2952702A1 EP 14171101 A EP14171101 A EP 14171101A EP 2952702 A1 EP2952702 A1 EP 2952702A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure stage
- steam
- final
- 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- Withdrawn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 13
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000010792 warming Methods 0.000 description 5
- 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
- 238000007789 sealing Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process 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
Images
Classifications
-
- 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
-
- 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 operating 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, fluidly downstream of the pressure stage final pressure stage and at least one the final pressure stage has downstream condenser, wherein a steam generated outside the steam turbine is introduced into the pressure stage.
- the invention further relates to a system for heating or keeping warm a steam turbine, the at least one operating 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 has at least one of the final pressure stage downstream 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 keeping warm of components of a steam turbine can be done by supplying externally generated steam, for example, auxiliary steam, sealing steam or the like, to the components of the steam turbine.
- Typical temperatures of the steam used herein may be about 250 ° C to about 300 ° C.
- the steam can be introduced, for example, in a medium-pressure stage of a multi-stage steam turbine, the steam can expand in the direction of a medium-pressure stage downstream low-pressure stage of the steam turbine.
- the components of a low pressure stage of a steam turbine are not designed for discharge temperatures of 300 ° C. Therefore, upon initiation of a steam used to warm up or maintain a steam turbine into the low pressure stage, significant limitations to the components of the low pressure stage may 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
- this is associated with additional costs for cooling.
- 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.
- boundary conditions of the components of the final pressure stage which correspond to the design of the low-pressure stage, are maintained when the steam turbine is warmed up or kept warm. Since the components of the final pressure stage are not subjected to the steam or the associated high temperatures, the life of the components of the final pressure stage is not affected.
- no cooling of the components of the final pressure stage must be carried out, as described above and conventionally required, so that the warming up or keeping warm of the steam turbine using the method according to the invention can be done more cost-effectively, especially since no cooling system must be used.
- the final pressure stage is fluidically decoupled from the pressure stage during heating or keeping warm of the steam turbine.
- 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 upstream of the intermediate-pressure stage of the steam turbine 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 pressure stage may be a high-pressure stage of a two-stage steam turbine and the final pressure stage may be a low-pressure stage downstream of the high-pressure stage of the steam turbine.
- a liquid contained in the vapor can be condensed and fed to a liquid circuit in order to be used again for the production of steam can.
- the condensed liquid may be otherwise used or removed.
- 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 preferably sucked out of the pressure stage by means of negative pressure after flowing through the pressure stage.
- This is a simple and effective way to dissipate the vapor from the pressure stage.
- a suction connection can be arranged at the pressure stage, which is connected in fluid-conducting manner to the condenser.
- a suction connection can be arranged on an overflow line between the pressure stage and the final pressure stage or on a Zudampfön opening into the final pressure stage.
- the negative pressure can be generated and adjusted by a suitable means, which is for this purpose respectively activated or activated during the warming or warming of the steam turbine.
- 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.
- a throttle valve arranged in an overflow line between the pressure stage and the final pressure stage is closed during the introduction of the steam into the pressure stage. This can prevent the steam from entering the final pressure stage.
- the effectiveness of a suction of the steam from the pressure stage is increased, since the suction of the vapor, a backflow of fluid is prevented from the final pressure stage.
- the device may be designed to generate auxiliary steam, sealing steam or the like.
- the device preferably 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 shut-off device formed by a throttle valve arranged in an overflow line between the pressure stage and the final pressure stage, which can be closed during the introduction of the steam into 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.
- the figure shows a schematic representation of an embodiment of an inventive system 1 for heating or keeping warm a three-stage steam turbine 2, which operates at an initial pressure level or high pressure level high-pressure stage 3, operating at an intermediate pressure level or medium pressure level pressure stage 4 or medium pressure stage, one Having a final pressure level or low pressure level, fluidically downstream of the pressure stage 4 final pressure stage 5 and a final pressure stage 5 downstream capacitor 6 has.
- the high-pressure stage 3, the pressure stage 4 and the final pressure stage 5 are mechanically coupled via a common rotor shaft 7.
- the system 1 comprises a device 8 for generating a steam and for introducing the steam into the pressure stage 4 or medium pressure stage.
- the device 8 has for this purpose a steam generating unit 9, which generates the steam as the main product or by-product.
- the device 8 comprises a feed line 10 which opens in the pressure stage 4 and in which an electrically controllable valve 11 is arranged which is opened to heat or keep the steam turbine 2 warm.
- 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 blower 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 dash-dotted suction line 15 may be present, which connects an overflow line 16 between the pressure stage 4 and the final pressure stage 5 fluid-conducting with the condenser 6.
- a shut-off device 17 formed by a throttle valve is arranged, which is closed during the introduction of the steam into 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)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14171101.0A EP2952702A1 (de) | 2014-06-04 | 2014-06-04 | Verfahren zum Anwärmen oder Warmhalten einer Dampfturbine |
PCT/EP2015/059276 WO2015185292A1 (de) | 2014-06-04 | 2015-04-29 | Verfahren zum anwärmen oder warmhalten einer dampfturbine |
CN201580029589.0A CN106414912B (zh) | 2014-06-04 | 2015-04-29 | 用于蒸汽轮机的暖机或保温的方法 |
RU2016150530A RU2650239C1 (ru) | 2014-06-04 | 2015-04-29 | Способ нагрева или сохранения в горячем состоянии паровой турбины |
JP2016571126A JP6339242B2 (ja) | 2014-06-04 | 2015-04-29 | 蒸気タービンの暖機又は保温方法 |
EP15719220.4A EP3126641A1 (de) | 2014-06-04 | 2015-04-29 | Verfahren zum anwärmen oder warmhalten einer dampfturbine |
US15/312,930 US10100665B2 (en) | 2014-06-04 | 2015-04-29 | Method for heating up a steam turbine or for keeping a steam turbine hot |
KR1020167033544A KR101965660B1 (ko) | 2014-06-04 | 2015-04-29 | 증기 터빈의 가열 또는 열 유지 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14171101.0A EP2952702A1 (de) | 2014-06-04 | 2014-06-04 | Verfahren zum Anwärmen oder Warmhalten einer Dampfturbine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2952702A1 true EP2952702A1 (de) | 2015-12-09 |
Family
ID=50884741
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14171101.0A Withdrawn EP2952702A1 (de) | 2014-06-04 | 2014-06-04 | Verfahren zum Anwärmen oder Warmhalten einer Dampfturbine |
EP15719220.4A Withdrawn EP3126641A1 (de) | 2014-06-04 | 2015-04-29 | Verfahren zum anwärmen oder warmhalten einer dampfturbine |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15719220.4A Withdrawn EP3126641A1 (de) | 2014-06-04 | 2015-04-29 | Verfahren zum anwärmen oder warmhalten einer dampfturbine |
Country Status (7)
Country | Link |
---|---|
US (1) | US10100665B2 (ja) |
EP (2) | EP2952702A1 (ja) |
JP (1) | JP6339242B2 (ja) |
KR (1) | KR101965660B1 (ja) |
CN (1) | CN106414912B (ja) |
RU (1) | RU2650239C1 (ja) |
WO (1) | WO2015185292A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111042875A (zh) * | 2019-12-13 | 2020-04-21 | 上海电气电站设备有限公司 | 一种汽轮机的暖机方法及暖机系统 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014221563A1 (de) * | 2014-10-23 | 2016-04-28 | Siemens Aktiengesellschaft | Verfahren zur Verkürzung des Anfahrvorgangs einer Dampfturbine |
US12018596B2 (en) | 2020-11-30 | 2024-06-25 | Rondo Energy, Inc. | Thermal energy storage system coupled with thermal power cycle systems |
US11603776B2 (en) | 2020-11-30 | 2023-03-14 | 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 |
US11913361B2 (en) | 2020-11-30 | 2024-02-27 | Rondo Energy, Inc. | Energy storage system and alumina calcination applications |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE607273C (de) | 1934-12-20 | Siemens Schuckertwerke Akt Ges | Einrichtung zur Warmhaltung von Dampfturbinen in Betriebspausen | |
EP1191192A1 (de) * | 2000-09-26 | 2002-03-27 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zum Warmziehen und Entwässern von an Dampfturbinenstufen angeschlossenen Dampfzuleitungen |
US6405537B1 (en) * | 1996-06-26 | 2002-06-18 | Hitachi, Ltd. | Single shaft combined cycle plant and operating thereof |
DE102010042405A1 (de) * | 2010-10-13 | 2012-04-19 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Abwärmenutzung einer Brennkraftmaschine |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59192806A (ja) | 1983-04-15 | 1984-11-01 | Hitachi Ltd | 2軸蒸気タ−ビンのストレツチアウトラン運転方法およびその装置 |
JPS60164606A (ja) | 1984-02-06 | 1985-08-27 | Hitachi Ltd | 配管暖機制御装置 |
JPS62159705A (ja) * | 1986-01-09 | 1987-07-15 | Fuji Electric Co Ltd | 再熱復水タ−ビンの中圧タ−ビンウオ−ミング装置 |
JPH0751887B2 (ja) | 1986-04-09 | 1995-06-05 | 株式会社日立製作所 | タ−ビン過速抑制系統 |
JPS63297705A (ja) | 1987-05-29 | 1988-12-05 | Toshiba Corp | 蒸気タ−ビンの起動装置 |
SU1506154A1 (ru) | 1988-01-07 | 1989-09-07 | Всесоюзный Теплотехнический Научно-Исследовательский Институт Им.Ф.Э.Дзержинского | Способ пуска энергетического блока котел-турбина |
JP3694530B2 (ja) | 1996-06-26 | 2005-09-14 | 株式会社日立製作所 | 一軸型コンバインドサイクルプラント及びその運転方法 |
WO2007131240A2 (en) * | 2006-05-05 | 2007-11-15 | Plasco Energy Group Inc. | A gas conditioning system |
DE102009021924B4 (de) * | 2009-05-19 | 2012-02-23 | Alstom Technology Ltd. | Verfahren zur Primärregelung einer Dampfturbinenanlage |
EP2305364A1 (en) * | 2009-09-29 | 2011-04-06 | Alstom Technology Ltd | Power plant for CO2 capture |
-
2014
- 2014-06-04 EP EP14171101.0A patent/EP2952702A1/de not_active Withdrawn
-
2015
- 2015-04-29 CN CN201580029589.0A patent/CN106414912B/zh not_active Expired - Fee Related
- 2015-04-29 EP EP15719220.4A patent/EP3126641A1/de not_active Withdrawn
- 2015-04-29 US US15/312,930 patent/US10100665B2/en not_active Expired - Fee Related
- 2015-04-29 WO PCT/EP2015/059276 patent/WO2015185292A1/de active Application Filing
- 2015-04-29 JP JP2016571126A patent/JP6339242B2/ja not_active Expired - Fee Related
- 2015-04-29 RU RU2016150530A patent/RU2650239C1/ru active
- 2015-04-29 KR KR1020167033544A patent/KR101965660B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE607273C (de) | 1934-12-20 | Siemens Schuckertwerke Akt Ges | Einrichtung zur Warmhaltung von Dampfturbinen in Betriebspausen | |
US6405537B1 (en) * | 1996-06-26 | 2002-06-18 | Hitachi, Ltd. | Single shaft combined cycle plant and operating thereof |
EP1191192A1 (de) * | 2000-09-26 | 2002-03-27 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zum Warmziehen und Entwässern von an Dampfturbinenstufen angeschlossenen Dampfzuleitungen |
DE102010042405A1 (de) * | 2010-10-13 | 2012-04-19 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Abwärmenutzung einer Brennkraftmaschine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111042875A (zh) * | 2019-12-13 | 2020-04-21 | 上海电气电站设备有限公司 | 一种汽轮机的暖机方法及暖机系统 |
CN111042875B (zh) * | 2019-12-13 | 2023-02-28 | 上海电气电站设备有限公司 | 一种汽轮机的暖机方法及暖机系统 |
Also Published As
Publication number | Publication date |
---|---|
CN106414912B (zh) | 2018-01-26 |
KR101965660B1 (ko) | 2019-04-04 |
KR20160147034A (ko) | 2016-12-21 |
US20170204741A1 (en) | 2017-07-20 |
JP2017522483A (ja) | 2017-08-10 |
EP3126641A1 (de) | 2017-02-08 |
JP6339242B2 (ja) | 2018-06-06 |
RU2650239C1 (ru) | 2018-04-11 |
CN106414912A (zh) | 2017-02-15 |
US10100665B2 (en) | 2018-10-16 |
WO2015185292A1 (de) | 2015-12-10 |
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