EP0256243A1 - Centrale de turbines à vapeur - Google Patents

Centrale de turbines à vapeur Download PDF

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Publication number
EP0256243A1
EP0256243A1 EP87108567A EP87108567A EP0256243A1 EP 0256243 A1 EP0256243 A1 EP 0256243A1 EP 87108567 A EP87108567 A EP 87108567A EP 87108567 A EP87108567 A EP 87108567A EP 0256243 A1 EP0256243 A1 EP 0256243A1
Authority
EP
European Patent Office
Prior art keywords
steam
condenser
pressure
steam turbine
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Withdrawn
Application number
EP87108567A
Other languages
German (de)
English (en)
Inventor
Alfred Dipl.-Ing. Junior
Walter Dipl.-Ing. Aumann
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.)
Koerting Hannover GmbH
Original Assignee
Koerting Hannover GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6307759&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0256243(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koerting Hannover GmbH filed Critical Koerting Hannover GmbH
Publication of EP0256243A1 publication Critical patent/EP0256243A1/fr
Withdrawn legal-status Critical Current

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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
    • F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
    • F01K9/02—Arrangements or modifications of condensate or air pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B9/00—Auxiliary systems, arrangements, or devices
    • F28B9/10—Auxiliary systems, arrangements, or devices for extracting, cooling, and removing non-condensable gases

Definitions

  • the invention relates to a steam turbine system of the type mentioned in the preamble of claim 1.
  • the bleed steam flow which heats up the condensate in the first preheating stage up to a predetermined setpoint, is reduced by a certain partial flow. This partial flow flows through the final stages of the turbine, so that a corresponding proportion of the power is recovered.
  • the invention has for its object to provide a steam turbine system of the type in question, the overall efficiency is higher than that of the known steam turbine system.
  • the basic idea of this teaching according to the invention is to take a partial flow of the bleed steam from the tapping point with the lowest bleed pressure as the driving steam for the steam jet compressor; of the different operating states of the steam turbine system is constantly or temporarily below atmospheric pressure, although it can still be fully exploited for preheating by transferring its heat to the feed water (condensate) in the intermediate cooler working as a preliminary stage, but also utilizing the working capacity of this partial flow of the bleed steam and thus to operate the steam jet compressor. This increases the overall efficiency of the steam turbine system.
  • the drive side of the steam jet compressor is connected to the extraction point without the interposition of a pressure regulator, i.e. that motive steam pressure and flow of the steam jet compressor depend on the turbine load and change accordingly.
  • a steam generator 1 is connected via a line 2 to a high-pressure stage 3 of a steam turbine 4, the output of which is connected as a tapping point 5 via a line 6 to a medium-pressure stage 7, which has two tapping points 8 and 9, the latter of which via a line 10 a low pressure stage 11 is connected, the tapping points 12 to 14.
  • a shaft 15 of the steam turbine 4 is connected to an electrical generator 16.
  • the extraction point 14 is the exhaust steam side of the steam turbine 4 and is connected via a line 17 to a condenser 18, in which the exhaust steam is condensed in a known manner.
  • the condensate of the condenser 18 passes back into the steam generator 1 via a line 20, a condensate pump 21-, an intercooler 22 and also via heat exchangers 23 to 27 and feed water pump 28.
  • a suction line 29 leads from the condenser 18 to the suction side of a steam jet compressor 30, the drive side of which is connected via a line 31 and a line 32 to the extraction point 13, which is the extraction point with the lowest pressure.
  • the pressure at the lowest withdrawal point 13 is constantly or temporarily below atmospheric pressure during the different operating states of the steam turbine system.
  • the steam jet compressor 30 is thus supplied with a partial tap steam flow from the extraction point 13 on the driving steam side.
  • the compression side of the steam jet compressor 30 is connected via a line 33 to the intercooler 22, which lies in a line 34 downstream of the condenser 18 between the condensate pump 21 and the first heat exchanger 23.
  • a suction pump 36 which can be a water ring pump, a water jet pump, a steam jet pump or a combination thereof, and whose outlet 37 is connected to the atmosphere, is connected to the intercooler 22 via a suction line 35.

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)
  • Jet Pumps And Other Pumps (AREA)
EP87108567A 1986-08-20 1987-06-13 Centrale de turbines à vapeur Withdrawn EP0256243A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3628186 1986-08-20
DE3628186 1986-08-20

Publications (1)

Publication Number Publication Date
EP0256243A1 true EP0256243A1 (fr) 1988-02-24

Family

ID=6307759

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87108567A Withdrawn EP0256243A1 (fr) 1986-08-20 1987-06-13 Centrale de turbines à vapeur

Country Status (2)

Country Link
EP (1) EP0256243A1 (fr)
JP (1) JPS6350611A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011114776A1 (de) * 2011-10-01 2013-04-04 Walter Aumann Verfahren zum Betreiben eines Dampfkraftwerkes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4972708B2 (ja) * 2009-01-30 2012-07-11 株式会社日立製作所 蒸気を利用するプラント及びそのプラントの運転方法並びに蒸気供給装置及び蒸気供給方法
US8448439B2 (en) 2009-01-30 2013-05-28 Hitachi-Ge Nuclear Energy, Ltd. Electric power plant, and method for running electric power plant

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE369736A (fr) *
DE514718C (de) 1928-07-24 1930-12-16 Aeg Einrichtung zur Entfernung der Luft und des restlichen Dampfes aus Oberflaechenkondensatoren
DE695375C (de) * 1938-03-08 1940-08-23 Aeg Verfahren zum Betriebe von Dampfstrahlluftsaugern fuer Oberflaechenkondensatoren vonDampfturbinen
GB2147050A (en) * 1983-09-27 1985-05-01 Hick Hargreaves & Co Ltd Liquid ring pumps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE369736A (fr) *
DE514718C (de) 1928-07-24 1930-12-16 Aeg Einrichtung zur Entfernung der Luft und des restlichen Dampfes aus Oberflaechenkondensatoren
DE695375C (de) * 1938-03-08 1940-08-23 Aeg Verfahren zum Betriebe von Dampfstrahlluftsaugern fuer Oberflaechenkondensatoren vonDampfturbinen
GB2147050A (en) * 1983-09-27 1985-05-01 Hick Hargreaves & Co Ltd Liquid ring pumps

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"Recommended Practice for the Design of Surface Type Steam Condensing Plant", vol. 222, 50719, THE BRITISH ELECTRICAL AND ALLIED MANUFACTURERS' ASSOCIATION
"Standards for Steam Surface Condensers", 1070619, HEAT EXCHANGE INSTITUTE
A. JUNIOR: "Die Dampfstrahl-Vakuumpumpe als Wärmepumpe bei der Evakuierung eines Dampfturbinenkondensators", KRAFTWERKSTECHNIK, 9070119, pages 829 - 835

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011114776A1 (de) * 2011-10-01 2013-04-04 Walter Aumann Verfahren zum Betreiben eines Dampfkraftwerkes
WO2013044899A2 (fr) 2011-10-01 2013-04-04 Alfred Junior Procédé permettant de faire fonctionner une centrale thermique à vapeur
WO2013044899A3 (fr) * 2011-10-01 2014-09-04 Alfred Junior Procédé permettant de faire fonctionner une centrale thermique à vapeur
DE102011114776B4 (de) * 2011-10-01 2014-10-23 Walter Aumann Verfahren zum Betreiben eines Dampfkraftwerkes

Also Published As

Publication number Publication date
JPS6350611A (ja) 1988-03-03

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Inventor name: AUMANN, WALTER, DIPL.-ING.

Inventor name: JUNIOR, ALFRED, DIPL.-ING.