EP2801703A1 - Installation de turbine à vapeur avec conduite de vapeur d'arrêt - Google Patents

Installation de turbine à vapeur avec conduite de vapeur d'arrêt Download PDF

Info

Publication number
EP2801703A1
EP2801703A1 EP20130166955 EP13166955A EP2801703A1 EP 2801703 A1 EP2801703 A1 EP 2801703A1 EP 20130166955 EP20130166955 EP 20130166955 EP 13166955 A EP13166955 A EP 13166955A EP 2801703 A1 EP2801703 A1 EP 2801703A1
Authority
EP
European Patent Office
Prior art keywords
steam
vapor
sealing
spindle
plant
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Withdrawn
Application number
EP20130166955
Other languages
German (de)
English (en)
Inventor
Rachid Dhima
Dirk Knudsen
Vitus Tapprich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP20130166955 priority Critical patent/EP2801703A1/fr
Publication of EP2801703A1 publication Critical patent/EP2801703A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • 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
    • F05D2220/72—Application in combination with a steam turbine

Definitions

  • the invention relates to a system comprising a turbomachine, a sealing steam line for supplying sealing vapor and a Wrasendampf effet for discharging Wrasendampf.
  • a facility such as As a rule, a steam turbine plant comprises a turbomachine designed as a steam turbine, which essentially has a rotatable rotor and a stationary housing.
  • the rotor is in this case rotatably mounted within the housing.
  • the steam turbine is supplied with steam via a steam generator.
  • a steam turbine comprises several sub-turbines, such as e.g. a high pressure, medium pressure and / or low pressure turbine part. There are embodiments in which the aforementioned sub-turbines are housed in separate housings.
  • the steam is fed via inflow into the steam turbine and discharged through outlets from the steam turbine.
  • the steam generally has high temperatures and high pressures, which means that as a result of the rotatable mounting of the rotor, a leakage steam could escape from the turbine interior into the atmosphere. Therefore, today the steam turbines are subjected to a so-called sealing steam, which counteracts a sealing steam to the effluent steam in the storage area at the ends of the steam turbine.
  • the steam turbines are supplied with steam via quick-closing and / or control valves.
  • the control valve regulates the steam supply, the quick-acting valve in the case of a quick closing, such. a fault that stops steam supply abruptly.
  • Valves designed for this application have a longitudinally displaceable poppet that can be moved against a valve sleeve. Since the steam is also in the valve under a high pressure and a high temperature, inevitably creates a leakage steam, which can flow out of the valve. Therefore, when the turbine's quick-closing and / or valve is closed, steam will escape through the gland. In this case, MAM system lines are provided which divert the spindle leak steam into the shaft seal steam system.
  • this hot spindle steam causes higher costs for the shaft seal steam system, because of the high temperature of the spindle flash steam, the use of high-quality expensive materials is necessary.
  • the hot spindle leak steam can damage individual components of the steam turbine, such as e.g. the shaft or housing when the spindle leak steam enters the turbine through the shaft seals. This is despite all then the case when the steam boiler or the heat recovery steam generator is in operation and the steam turbine is stopped.
  • the material of the shaft seal system is designed for the high temperatures of the spindle leak steam, resulting in increased costs.
  • auxiliary cooling steam is fed into the shaft seal vapor system.
  • the object of the invention is to provide a system comprising a turbomachine, with a safe operation is possible.
  • a system comprising a turbomachine, a sealing steam line for supplying sealing steam, a Wrasendampftechnisch for discharging Wrasendampf, wherein a Spindelleckdampf effet is provided, which is fluidly connected to the Wrasendampf admir and designed to conduct spindle leak steam.
  • an ejection device is arranged in the spindle outlet steam line, which is designed to spray off the spindle leak steam with a spray-off agent.
  • water is used as a spray.
  • the temperature of the spindle leak steam is reduced by the spray device, which means that materials can be used in the vapor steam line and in the spindle outlet steam line, which are significantly less expensive.
  • a plurality of steam steam lines are connected to the turbomachine and connected to a vapor steam manifold, wherein the spindle steam line is fluidically connected to the Wrasendampfsammeltechnisch.
  • a control device is connected to the ejection device, wherein the control device is designed to control the amount of Abspritzschs.
  • the temperature reduction can be controlled with the control device, which results in that the temperature in the Wrasendampf orchid can be adjusted.
  • the figure shows schematically a plant.
  • the figure shows a plant 1 comprising a first turbine part 2, a two-flow turbine part 3 and a further twin-bladed turbine part 4.
  • the sub-turbines 2, 3 and 4 are supplied via steam supply lines not shown with steam.
  • sealing steam lines 5 are provided in the storage area, which are supplied with sealing steam via an auxiliary steam generator 6 and a sealing steam valve 7.
  • the sealing steam line 5 is acted upon by a spindle leak steam 8.
  • the Wrasendampf mixed with the sealing steam and the atmospheric air is passed through Wrasendampftechnischen 9 in a Wrasendampfsammeltechnisch 10.
  • the Spindelleckdampf nie is thus fluidly connected to the Wrasendampfsammel endeavor 10 and for conducting formed by spindle outlet steam.
  • Several vapor steam lines 9 are connected to the steam turbine 2, 3 and 4 and connected to a Wrasendampfsammeltechnisch 10, wherein the Spindelleckdampf effet 13 is fluidically connected to the Wrasendampfsammel effet 10.
  • the steam vapor mixed with the spindle leak steam is then finally collected in a steam vapor condenser 14.
  • the spray device 12 has a control device, not shown, with which the amount of Abspritzschs is controlled so as to optimize the temperature of the spindle leak steam.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP20130166955 2013-05-08 2013-05-08 Installation de turbine à vapeur avec conduite de vapeur d'arrêt Withdrawn EP2801703A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20130166955 EP2801703A1 (fr) 2013-05-08 2013-05-08 Installation de turbine à vapeur avec conduite de vapeur d'arrêt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20130166955 EP2801703A1 (fr) 2013-05-08 2013-05-08 Installation de turbine à vapeur avec conduite de vapeur d'arrêt

Publications (1)

Publication Number Publication Date
EP2801703A1 true EP2801703A1 (fr) 2014-11-12

Family

ID=48366184

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20130166955 Withdrawn EP2801703A1 (fr) 2013-05-08 2013-05-08 Installation de turbine à vapeur avec conduite de vapeur d'arrêt

Country Status (1)

Country Link
EP (1) EP2801703A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113530613A (zh) * 2021-06-23 2021-10-22 中广核工程有限公司 核电厂常规岛失气后控制方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB877951A (en) * 1959-12-23 1961-09-20 Prvni Brnenska Strojirna Improvements in systems governing the steam in stuffing boxes
US3604206A (en) * 1968-07-31 1971-09-14 Gen Electric Shaft-sealing system for nuclear turbines
WO2002027152A2 (fr) * 2000-09-29 2002-04-04 Siemens Aktiengesellschaft Installation de turbines a vapeur et procede pour l'exploitation d'une installation de turbines a vapeur
US20120027565A1 (en) * 2010-07-28 2012-02-02 General Electric Company System and method for controlling leak steam to steam seal header for improving steam turbine performance

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB877951A (en) * 1959-12-23 1961-09-20 Prvni Brnenska Strojirna Improvements in systems governing the steam in stuffing boxes
US3604206A (en) * 1968-07-31 1971-09-14 Gen Electric Shaft-sealing system for nuclear turbines
WO2002027152A2 (fr) * 2000-09-29 2002-04-04 Siemens Aktiengesellschaft Installation de turbines a vapeur et procede pour l'exploitation d'une installation de turbines a vapeur
US20120027565A1 (en) * 2010-07-28 2012-02-02 General Electric Company System and method for controlling leak steam to steam seal header for improving steam turbine performance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113530613A (zh) * 2021-06-23 2021-10-22 中广核工程有限公司 核电厂常规岛失气后控制方法

Similar Documents

Publication Publication Date Title
DE10236294A1 (de) Gasversorgungskontrolleinrichtung einer Gasspeicherkraftanlage
DE102009026053A1 (de) Überlastventil für eine Dampfturbine und zugehöriges Verfahren
EP2596213B1 (fr) Turbine à vapeur avec un refroidissement interne
EP2326800B1 (fr) Centrale à vapeur destinée à la production d'énergie électrique
CH708990A2 (de) Verfahren zur Wäsche, Spülung, Zwischenspülung mit Peressigsäure-Lösung und zum Korrosionschutz einer Gasturbine.
DE102011011123B4 (de) Dampfanlage und Verfahren zum Konfigurieren der Dampfanlage
EP2067933B1 (fr) Concept de sécurité pour une turbine à vapeur
EP2801703A1 (fr) Installation de turbine à vapeur avec conduite de vapeur d'arrêt
EP3087256B1 (fr) Procédé de refroidissement d'une turbine à vapeur
EP2718545A1 (fr) Turbine à vapeur comprenant un piston d'équilibrage de poussée
DE112018000896T5 (de) Dampfturbinenanlage
EP3014150A1 (fr) Soupape pour la fermeture et/ou le réglage du débit d'écoulement de fluides, et procédé pour le traitement ultérieur d'une telle soupape
EP1455066B1 (fr) Méthode et dispositif de refroidissement d'une turbomachine
EP2657467A1 (fr) Refroidissement forcé pour installations de turbines à vapeur
EP2918792A1 (fr) Centrale à vapeur dotée d'une conduite de vapeur de fuite à broche
EP2877699B1 (fr) Turbine à basse pression
EP3628922A1 (fr) Procédé de conditionnement d'une turbine basse pression
EP3109420A1 (fr) Procédé de refroidissement d'une turbomachine
WO2010018021A1 (fr) Réduction de la charge thermique d’un boîtier extérieur pour une turbomachine
EP2987971A1 (fr) Condensateur pour une centrale à vapeur
EP3444449A1 (fr) Installation dotée d'une station de dérivation
EP2031190B1 (fr) Turbine à vapeur dotée d'une alimentation réglée en agent de refroidissement
WO2015197238A1 (fr) Procédé servant à faire démarrer un système à turbine à vapeur
DE102014225711A1 (de) Verfahren zur Konservierung eines Anlagenteils eines Dampfkraftwerks
EP2443322A2 (fr) Système de compresseurs pour une installation de gaz de procédé avec réinjection de chaleur et installation de gaz de procédé pour la production de dioxyde de carbone gazeux

Legal Events

Date Code Title Description
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

17P Request for examination filed

Effective date: 20130508

AK Designated contracting states

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

AX Request for extension of the european patent

Extension state: BA ME

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

18D Application deemed to be withdrawn

Effective date: 20150513