EP3183436A1 - Verfahren zur verkürzung des anfahrvorgangs einer dampfturbine - Google Patents
Verfahren zur verkürzung des anfahrvorgangs einer dampfturbineInfo
- Publication number
- EP3183436A1 EP3183436A1 EP15778257.4A EP15778257A EP3183436A1 EP 3183436 A1 EP3183436 A1 EP 3183436A1 EP 15778257 A EP15778257 A EP 15778257A EP 3183436 A1 EP3183436 A1 EP 3183436A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turbine
- steam
- turbine housing
- sealing
- housing
- 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- Withdrawn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
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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
- F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
- F01D11/06—Control thereof
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
-
- 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
- F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
- F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
-
- 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
- F05D2260/85—Starting
-
- 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
- F05D2270/00—Control
- F05D2270/01—Purpose of the control system
- F05D2270/16—Purpose of the control system to control water or steam injection
-
- 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
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/303—Temperature
Definitions
- the invention relates to a method for shortening the startup of a steam turbine, the turbine housing and provided within the turbine housing Turbinenkomponen ⁇ th, which come into operation with a turbine housing by ⁇ flowing hot steam in contact and include a turbine shaft, which passes through the turbine housing axially having , wherein between the turbine shaft and the turbine ⁇ housing sealing areas are formed, which are acted upon in the operation of the steam turbine with sealing steam, and where ⁇ in the steam turbine during a standstill of the turbine heat energy is supplied.
- the thermal energy of water vapor in a steam turbine is used to generate electricity.
- the necessary steam is generated in conventional power plants in a steam boiler made of purified and treated water using fossil fuels.
- the thus-provided water vapor is then passed through an over ⁇ superheater to increase the temperature of the water vapor and ⁇ sen specific volume.
- the superheated steam is released.
- thermal energy is converted into mechanical energy, which is used to drive a consumer and in particular a generator for He ⁇ generation of electrical energy.
- the expanded and cooled steam then flows into a Kondensa ⁇ gate, where it is condensed by heat transfer to the environment and accumulates as liquid water at the lowest point of the capacitor.
- the condensed water is fed via corre sponding ⁇ pump and preheating a feedwater tank and fed from there via a feed pump to the boiler again.
- steam turbines are also used in solar power plants. These have solar generator units, for example in the form of parabolic mirrors, which have in their focal line a pipeline for a heat transfer oil. In this focal line, the heat transfer oil it warms ⁇ sunlight and subsequently linked via a heat exchanger with water or steam. By heat transfer hot steam is generated, which drives the steam turbines of the solar power plant in a steam cycle
- the known steam turbine plants are generally designed in multiple stages and have a high-pressure (HD) turbine stage, a medium-pressure (MD) turbine stage and a low-pressure (ND) turbine stage, which are successively flowed through by the steam.
- the HP turbine stage and the IP turbine stage are often quantitative sums together to a steam turbine or underweight brought ⁇ in a common turbine housing. This is outflow connected via an overflow with the ND turbine stage, which is designed as a separate turbine with a separate turbine housing.
- seal portions are formed, which counteract an escape of steam or in the LP turbine stage an air blow through the annulus, which is formed between the turbine shaft and the turbine housing respectively. Because the
- the object of the invention to specify a method of the type mentioned, with which the start-up of a turbine and in particular a steam turbine can be shortened.
- Deswei ⁇ direct the object of the invention to provide a turbine for implementing the method.
- This object is achieved in a method of the type mentioned in that the interior of the turbine housing during standstill of the steam turbine sealing steam is supplied to heat and provided in the interior of the turbine housing turbine components and / or keep warm.
- the invention is thus based on the consideration of heating the turbine components provided inside the turbine housing, and in particular the turbine shaft, during a standstill of the turbine by injecting hot sealing steam into the turbine housing. cabinet housing is passed.
- the turbine shaft When introducing the hot lock ⁇ Vapor the turbine shaft may be slow, that is about 10 to 20 revolutions per minute, are rotated to distribute the supplied sealing steam evenly inside the turbine housing and cooled sealing steam again to lead from the turbine housing.
- the heating by means of sealing vapor brings with it no additional costs with it, as long as the steam turbine is evacuated, since in this time the sealing region ⁇ Chen between the turbine shaft and the turbine housing continuously continuous sealing steam is supplied.
- the sealing steam is supplied to the interior of the turbine housing with a temperature of at least 200 ° C, in particular at least 250 ° C and preferably at least 300 ° C, so that the turbine components and in particular the turbine shaft are maintained at a corresponding temperature.
- the turbine components are maintained at a temperature level that allows the turbine to start under hot start conditions.
- the method is used bine at a Dampftur-, wherein the rear reinan ⁇ the two turbine stages are provided in the turbine housing, and in particular the high pressure (HP) turbine stage and the medium pressure (MD) turbine stage of the steam turbine plant.
- a lockable drainage line is regularly connected between the turbine stages to the turbine housing, which usually connects the turbine housing with a condenser.
- the present invention during the standstill of the steam turbine via the Ent ⁇ aqueous line extracted the steam contained in the turbine housing and at the same time sealing vapor, which is supplied to the Dichtungsbe ⁇ rich, from both axial end portions of the turbine housing forth in the turbine housing to the drainage ⁇ tion line sucked.
- the sealing vapor which is further supplied to the sealing areas during the standstill of the steam turbine, sucked from the end regions of the turbine housing to the central Enticass mecanicslei ⁇ tion, so that the turbine housing is preferably flowed through from its Endbe- forth with sealing steam continuously.
- Dampfleitun ⁇ On the inlet side and downstream connected Dampfleitun ⁇ conditions, which serve in operation for supplying or for discharging superheated steam, closed.
- the turbine housing can be provided in a conventional manner on its outside during standstill of the steam ⁇ turbine with a thermal insulation and / or heated from the outside, to counteract a heat release to the outside.
- An embodiment of the invention will be explained below with reference to the accompanying drawings.
- the single figure shows a schematic view of a steam turbine ⁇ nenstrom 1 according to the present invention. This comprises two steam turbines 2, 3 or steam turbine units connected in series, namely an HP / MD steam turbine 2 and an LP steam turbine 3.
- the HD / MD steam turbine 2 forms a high-pressure (HP) turbine stage 2a and a medium pressure (MD) turbine stage 2b of the steam turbine plant 1, while an LP steam turbine 3 represents the low pressure (LP) turbine stage of the steam turbine plant 1.
- the LP turbo bine 3 is on the inlet side connected to the downstream side of the medium-pressure stage ⁇ 2b of the HD / MD-steam turbine 2 via an overflow. 4
- a shut-off valve 5 is provided, via which the overflow line 4 can be closed.
- the HD / IP steam turbine 2 and the LP steam turbine 3 each have ⁇ wells a turbine shaft 6, 7 on which are mounted in a not Darge ⁇ presented turbine housings and sealed in a conventional manner via corresponding seal portions 8 with respect to the Turbinenge ⁇ housings.
- the HP / MD steam turbine 2 of the steam turbine system 1 is connected to a main steam supply line 9 on the inflow side.
- a valve 10 is arranged, via which the live steam supply line 9 can be shut off.
- the HP part 2a of the HP / MD steam turbine is connected downstream of a steam discharge line 17, which supplies the cooled HD exhaust steam of the reheat in the boiler during nominal operation.
- a check valve 18 is arranged, via which the steam discharge line 17 can be shut off.
- a drainage pipe 11 is connected to the turbine housing of the HD / MD steam turbine 2 between the HP stage 2a and the MD stage 2b.
- a shut-off valve 12 is provided, via which the Entskyssansslei ⁇ device 11 can be opened or closed.
- the drainage line 11 serves to connect the turbine housing with a capacitor, not shown.
- conveying device vorgese ⁇ hen via which steam can be sucked from the interior of the turbine housing and conveyed to the condenser.
- the steam turbine plant 1 further comprises a sealing steam ⁇ source 13, which supplies the sealing regions 8 via corresponding sealing steam lines 14 sealing vapor.
- a sealing steam ⁇ source 13 which supplies the sealing regions 8 via corresponding sealing steam lines 14 sealing vapor.
- temperature sensors 15 are furthermore provided, which are connected by data technology to a control device 16, via which all functions of the steam turbine installation 1 are controlled.
- the temperature sensors 6 serve to detect the temperature in the turbine housing.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Turbines (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014221563.3A DE102014221563A1 (de) | 2014-10-23 | 2014-10-23 | Verfahren zur Verkürzung des Anfahrvorgangs einer Dampfturbine |
PCT/EP2015/072920 WO2016062532A1 (de) | 2014-10-23 | 2015-10-05 | Verfahren zur verkürzung des anfahrvorgangs einer dampfturbine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3183436A1 true EP3183436A1 (de) | 2017-06-28 |
Family
ID=54291272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15778257.4A Withdrawn EP3183436A1 (de) | 2014-10-23 | 2015-10-05 | Verfahren zur verkürzung des anfahrvorgangs einer dampfturbine |
Country Status (4)
Country | Link |
---|---|
US (1) | US20170306801A1 (de) |
EP (1) | EP3183436A1 (de) |
DE (1) | DE102014221563A1 (de) |
WO (1) | WO2016062532A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6656992B2 (ja) | 2016-03-31 | 2020-03-04 | 三菱日立パワーシステムズ株式会社 | タービン翼の脱水素処理方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE905137C (de) * | 1951-03-14 | 1954-02-25 | Huettenwerk Watenstedt Salzgit | Verfahren zur Bereitschaftshaltung von Dampfturbinen |
JPS61237802A (ja) * | 1985-04-12 | 1986-10-23 | Hitachi Ltd | 蒸気タ−ビンの暖機方法 |
CH671807A5 (de) * | 1986-08-11 | 1989-09-29 | Proizv Ob Turbostroenia | |
ES2029430A6 (es) | 1991-03-26 | 1992-08-01 | Sevillana De Electricidad S A | Sistema de mantenimiento en caliente de turbinas de gran potencia, principalmente de turbinas de vapor. |
EP2024609A2 (de) * | 2006-05-31 | 2009-02-18 | Siemens Aktiengesellschaft | Verfahren und vorrichtung zur steuerung eines kraftwerks |
ES2743247T3 (es) * | 2010-01-12 | 2020-02-18 | Siemens Ag | Turbina con sistema de calefacción, y central de energía solar correspondiente y procedimiento de funcionamiento |
EP2644840A1 (de) * | 2012-03-28 | 2013-10-02 | Siemens Aktiengesellschaft | Dampfturbinensystem und Verfahren zum Anfahren einer Dampfturbine |
CN202810972U (zh) * | 2012-09-27 | 2013-03-20 | 河南华润电力首阳山有限公司 | 一种汽轮机系统及其预暖系统 |
TW201501340A (zh) * | 2013-06-27 | 2015-01-01 | Inst Nuclear Energy Res Atomic Energy Council | 製備大面積有機太陽能電池之方法 |
EP2952702A1 (de) * | 2014-06-04 | 2015-12-09 | Siemens Aktiengesellschaft | Verfahren zum Anwärmen oder Warmhalten einer Dampfturbine |
-
2014
- 2014-10-23 DE DE102014221563.3A patent/DE102014221563A1/de not_active Withdrawn
-
2015
- 2015-10-05 EP EP15778257.4A patent/EP3183436A1/de not_active Withdrawn
- 2015-10-05 US US15/520,095 patent/US20170306801A1/en not_active Abandoned
- 2015-10-05 WO PCT/EP2015/072920 patent/WO2016062532A1/de active Application Filing
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2016062532A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102014221563A1 (de) | 2016-04-28 |
WO2016062532A1 (de) | 2016-04-28 |
US20170306801A1 (en) | 2017-10-26 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20170321 |
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Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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AX | Request for extension of the european patent |
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) | ||
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: F01D 25/18 20060101ALI20190108BHEP Ipc: F16J 15/40 20060101ALI20190108BHEP Ipc: F16J 15/447 20060101ALI20190108BHEP Ipc: F01D 11/04 20060101ALI20190108BHEP Ipc: F01D 25/10 20060101ALI20190108BHEP Ipc: F01K 13/02 20060101AFI20190108BHEP Ipc: F01D 11/06 20060101ALI20190108BHEP |
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INTG | Intention to grant announced |
Effective date: 20190212 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20190625 |