EP3488083A1 - Ausströmgehäuse einer dampfturbine - Google Patents
Ausströmgehäuse einer dampfturbineInfo
- Publication number
- EP3488083A1 EP3488083A1 EP17736923.8A EP17736923A EP3488083A1 EP 3488083 A1 EP3488083 A1 EP 3488083A1 EP 17736923 A EP17736923 A EP 17736923A EP 3488083 A1 EP3488083 A1 EP 3488083A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- turbine
- outflow
- steam
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 48
- 238000003303 reheating Methods 0.000 description 7
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
-
- 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
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/26—Double casings; Measures against temperature strain in casings
-
- 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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/003—Preventing or minimising internal leakage of working-fluid, e.g. between stages by packing rings; Mechanical seals
-
- 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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/005—Sealing means between non relatively rotating elements
-
- 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
- F01K7/22—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 the turbines having inter-stage steam heating
-
- 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
- F05D2240/00—Components
- F05D2240/55—Seals
-
- 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
- F05D2260/00—Function
- F05D2260/94—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF]
- F05D2260/941—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF] particularly aimed at mechanical or thermal stress reduction
Definitions
- the present invention relates to a discharge housing for a turbine section of a steam turbine with intermediate superheating. Furthermore, the present invention relates to a steam turbine with a discharge housing according to the invention.
- Steam turbines are turbomachines designed to convert the enthalpy of steam into kinetic energy.
- Conventional steam turbines have a turbine housing, which surrounds a flow space for the passage of steam. In the flow space a rotationally mounted turbine shaft is arranged with a plurality of blades, which are held in the form of successively arranged blade rings on the turbine shaft.
- vane rings which are each preceded by a blade ring and held on the turbine housing.
- Group of a vane ring with associated blade ring is also referred to as a turbine stage.
- Turbine housings often have a lower housing part and an upper housing part.
- the turbine housing can also have a plurality of housing segments along the turbine longitudinal axis, so that the high-pressure section and the medium-pressure section are arranged, for example, in different housing segments.
- the connection is often made by screwing flanges of the housing parts or housing segments.
- the steam turbine according to the invention has the advantage over known steam turbines that it is ensured by means of the discharge housing that a relatively cold steam mass flow leaving the first turbine section can be withdrawn from the turbine without hitting the turbine housing. During operation of the steam turbine is thus avoided that the turbine housing in this area has an excessively high temperature gradient, since the turbine housing is exposed by dissipation of the relatively cold steam substantially warmer steam. Thus, the steam turbine can be dimensioned cost of the same power. Alternatively, thus, a power of the steam turbine can be increased with the same dimensions of the steam turbine. Furthermore, the steam turbine has the advantage that an additional sealing shell, which seals the first turbine section with respect to the second turbine section, is no longer necessary and can therefore be omitted. This allows the
- Turbine shaft and thus the entire steam turbine shorter and therefore be designed more cost-effective. Moreover, a shorter turbine shaft has improved rotor dynamic properties.
- This steam turbine 3 has the disadvantage that during operation of the deflected by the sealing shell 21 steam mass flow, which has a relatively low temperature, flows against the turbine housing 8, wherein relatively hot steam mass flows in the flow direction adjacent before and adjacent afterwards against the turbine housing 8 flow. Accordingly, the turbine housing is first exposed to a relatively high temperature steam mass flow, then to a relatively low temperature steam mass flow, and finally to a relatively high temperature steam mass flow. This results in a high temperature gradient in the turbine housing 8, which heavily loads the steam turbine 3 and limits a maximum power of the steam turbine 3.
- Housing longitudinal axis 6, surrounds the housing longitudinal axis 6 in full and thus includes or limits a flow space 16 for flowing through a steam mass flow.
- the steam turbine 3 has a plurality of turbine sections. In a downstream end region 15 of a first turbine section 2 a, which is adjacent to a second turbine section 2 b, in the flow direction S, an outflow housing 1 according to the invention is arranged.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Gasket Seals (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL17736923T PL3488083T3 (pl) | 2016-08-23 | 2017-07-04 | Obudowa wypływu turbiny parowej |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016215770.1A DE102016215770A1 (de) | 2016-08-23 | 2016-08-23 | Ausströmgehäuse und Dampfturbine mit Ausströmgehäuse |
PCT/EP2017/066556 WO2018036697A1 (de) | 2016-08-23 | 2017-07-04 | Ausströmgehäuse einer dampfturbine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3488083A1 true EP3488083A1 (de) | 2019-05-29 |
EP3488083B1 EP3488083B1 (de) | 2020-08-26 |
Family
ID=59296838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17736923.8A Active EP3488083B1 (de) | 2016-08-23 | 2017-07-04 | Ausströmgehäuse einer dampfturbine |
Country Status (7)
Country | Link |
---|---|
US (1) | US11286810B2 (de) |
EP (1) | EP3488083B1 (de) |
JP (1) | JP6910427B2 (de) |
CN (1) | CN109642476B (de) |
DE (1) | DE102016215770A1 (de) |
PL (1) | PL3488083T3 (de) |
WO (1) | WO2018036697A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016215770A1 (de) | 2016-08-23 | 2018-03-01 | Siemens Aktiengesellschaft | Ausströmgehäuse und Dampfturbine mit Ausströmgehäuse |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH426882A (de) | 1963-07-15 | 1966-12-31 | Licentia Gmbh | Axiale Zwischenüberhitzungs-Dampfturbine |
DE1426817B2 (de) | 1963-07-15 | 1970-02-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Axial beaufschlagte Dampfturbine |
GB1335939A (en) | 1972-03-06 | 1973-10-31 | Kraftwerk Union Ag | Fluid flow machine |
CZ296898A3 (cs) * | 1996-04-26 | 1999-02-17 | Siemens Aktiengesellschaft | Ovládací uspořádání pro přívod páry a způsob přívodu přetěžovací páry do parní turbíny |
JP3620167B2 (ja) | 1996-07-23 | 2005-02-16 | 富士電機システムズ株式会社 | 再熱式軸流蒸気タービン |
JP3898785B2 (ja) * | 1996-09-24 | 2007-03-28 | 株式会社日立製作所 | 高低圧一体型蒸気タービン用動翼と高低圧一体型蒸気タービン及びコンバインド発電システム並びに複合発電プラント |
JP3772019B2 (ja) * | 1998-04-21 | 2006-05-10 | 株式会社東芝 | 蒸気タービン |
JP2001221012A (ja) * | 2000-02-10 | 2001-08-17 | Toshiba Corp | 蒸気タービンおよび発電設備 |
ES2267655T3 (es) | 2001-11-22 | 2007-03-16 | Siemens Aktiengesellschaft | Metodo de fabricacion de turbinas de vapor. |
US6860719B2 (en) * | 2003-03-05 | 2005-03-01 | General Electric Company | Method and apparatus for sealing turbine casing |
GB0416931D0 (en) * | 2004-07-29 | 2004-09-01 | Alstom Technology Ltd | Axial flow steam turbine assembly |
DE102006027237A1 (de) * | 2005-06-14 | 2006-12-28 | Alstom Technology Ltd. | Dampfturbine |
RU2321757C2 (ru) | 2006-03-30 | 2008-04-10 | Открытое Акционерное Общество "Теплоэнергосервис-ЭК" (ОАО "Теплоэнергосервис-ЭК") | Цилиндр высокого давления паровой турбины |
EP2101044A1 (de) | 2008-03-13 | 2009-09-16 | Siemens Aktiengesellschaft | Dampfturbine mit geteiltem Innengehäuse |
EP2304192B1 (de) | 2008-03-31 | 2014-12-10 | Mitsubishi Heavy Industries, Ltd. | Spiralstruktur für rotationsmaschine und rotationsmaschine |
JP5433183B2 (ja) * | 2008-08-07 | 2014-03-05 | 株式会社東芝 | 蒸気タービンおよび蒸気タービンプラントシステム |
JP5110477B2 (ja) | 2008-10-08 | 2012-12-26 | 国立大学法人長岡技術科学大学 | 液液分離機能を有する繊維シート |
JP5317814B2 (ja) | 2009-04-27 | 2013-10-16 | 株式会社東芝 | 蒸気タービン |
EP2431570A1 (de) | 2010-09-16 | 2012-03-21 | Siemens Aktiengesellschaft | Dampfturbine mit einem Schubausgleichskolben und Nassdampfabsperrung |
US8651809B2 (en) * | 2010-10-13 | 2014-02-18 | General Electric Company | Apparatus and method for aligning a turbine casing |
EP2565419A1 (de) | 2011-08-30 | 2013-03-06 | Siemens Aktiengesellschaft | Kühlung für eine Strömungsmaschine |
JP5738127B2 (ja) | 2011-09-01 | 2015-06-17 | 三菱日立パワーシステムズ株式会社 | 蒸気タービン |
CN102518488A (zh) | 2011-12-09 | 2012-06-27 | 东方电气集团东方汽轮机有限公司 | 一种超高压缸 |
JP6013288B2 (ja) | 2012-07-20 | 2016-10-25 | 株式会社東芝 | タービン、及び発電システム |
CN202900332U (zh) | 2012-09-24 | 2013-04-24 | 湖北江汉重工有限公司 | 汽轮机汽缸铸件总成 |
JP6010488B2 (ja) * | 2013-03-11 | 2016-10-19 | 株式会社東芝 | 軸流タービンおよびこれを備えた発電プラント |
DE102013219771B4 (de) | 2013-09-30 | 2016-03-31 | Siemens Aktiengesellschaft | Dampfturbine |
DE102014116445B4 (de) | 2014-11-11 | 2016-08-11 | Benteler Automobiltechnik Gmbh | Turbinengehäuse für einen Abgasturbolader |
JP6249927B2 (ja) | 2014-11-11 | 2017-12-20 | 三菱日立パワーシステムズ株式会社 | 蒸気タービン |
DE102016215770A1 (de) | 2016-08-23 | 2018-03-01 | Siemens Aktiengesellschaft | Ausströmgehäuse und Dampfturbine mit Ausströmgehäuse |
-
2016
- 2016-08-23 DE DE102016215770.1A patent/DE102016215770A1/de not_active Withdrawn
-
2017
- 2017-07-04 WO PCT/EP2017/066556 patent/WO2018036697A1/de unknown
- 2017-07-04 JP JP2019510917A patent/JP6910427B2/ja active Active
- 2017-07-04 EP EP17736923.8A patent/EP3488083B1/de active Active
- 2017-07-04 PL PL17736923T patent/PL3488083T3/pl unknown
- 2017-07-04 US US16/326,447 patent/US11286810B2/en active Active
- 2017-07-04 CN CN201780051871.8A patent/CN109642476B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
EP3488083B1 (de) | 2020-08-26 |
PL3488083T3 (pl) | 2021-03-08 |
CN109642476A (zh) | 2019-04-16 |
BR112019003412A2 (pt) | 2019-05-21 |
BR112019003412A8 (pt) | 2023-05-02 |
US20210277801A1 (en) | 2021-09-09 |
US11286810B2 (en) | 2022-03-29 |
WO2018036697A1 (de) | 2018-03-01 |
JP6910427B2 (ja) | 2021-07-28 |
CN109642476B (zh) | 2021-11-26 |
JP2019528398A (ja) | 2019-10-10 |
DE102016215770A1 (de) | 2018-03-01 |
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