EP0010254A1 - Procédé de production d'énergie électrique dans un système à vapeur à contre-pression - Google Patents

Procédé de production d'énergie électrique dans un système à vapeur à contre-pression Download PDF

Info

Publication number
EP0010254A1
EP0010254A1 EP79103882A EP79103882A EP0010254A1 EP 0010254 A1 EP0010254 A1 EP 0010254A1 EP 79103882 A EP79103882 A EP 79103882A EP 79103882 A EP79103882 A EP 79103882A EP 0010254 A1 EP0010254 A1 EP 0010254A1
Authority
EP
European Patent Office
Prior art keywords
steam
heat
pressure
power
pressure steam
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
Application number
EP79103882A
Other languages
German (de)
English (en)
Other versions
EP0010254B1 (fr
Inventor
Anton Pocrnja
Alfred Bolkart
Josef Dworschak
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.)
Linde GmbH
Original Assignee
Linde 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
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of EP0010254A1 publication Critical patent/EP0010254A1/fr
Application granted granted Critical
Publication of EP0010254B1 publication Critical patent/EP0010254B1/fr
Expired 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
    • 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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating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
    • 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
    • F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
    • F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic

Definitions

  • the invention relates to a method for generating energy in a counter-pressure steam system, in which water vapor is expanded while performing work.
  • counter-pressure steam systems are power plants that serve to cover the power and heat requirements at the same time and enable a comprehensive utilization of the fuel heat.
  • the steam of high pressure and high temperature generated in a steam boiler first serves to drive a high-pressure turbine in which the steam is expanded into a first steam rail to a required temperature or a required pressure level.
  • steam can be drawn off from this steam rail both to cover the heat requirement of the system and can be expanded in a turbine into another steam rail with a lower pressure level.
  • the invention is therefore based on the object of developing a method with which the power-heat ratio can be increased in a counter-pressure steam system of the type described.
  • This object is achieved according to the invention in that the steam of one of the existing pressure levels before the work-relieving expansion is heated first isobarically by heat exchange with expanded steam and then with external heat, and is cooled essentially isobarically after the expansion to one of the existing lower pressure levels.
  • steam from a steam rail was simply expanded via a turbine onto a steam rail of a lower pressure level
  • the steam is first reheated by heat from the relaxed steam and then with external heat, for example in a fuel-fired heater, and only then, if necessary in several stages, relaxed.
  • the steam can be subjected to these process steps at any of the existing pressure levels. In this way, the proportion of mechanical energy generated in the turbines and thus the power-heat ratio is increased. Thereby the primary energy is used for the provision of the foreign heat far superior to the previous auxiliary power generation.
  • the steam Due to the recuperative heating, the steam is raised to a relatively high temperature level, so that the external heat that is subsequently supplied to the steam is used optimally, ie is absorbed at a very high temperature level. Since the energy yield of the additional energy generation increases with the temperature of the steam before the expansion, the highest possible temperature of the steam is desirable. The highest temperature that can be achieved in the heater is only limited by the material properties of the heater. Another advantage of the recuperative heating is the fact that with increasing temperature of the heat source, through which the external heat is provided, the temperature of the steam supplied to the heat source also increases, and thus the heat of the heat source is optimally used in all temperature ranges. With an ideal gas and with arbitrarily small temperature differences during recuperative heat exchange, the turbine output would be equal to the external heat absorbed.
  • the expanded steam After isobaric cooling, the expanded steam still has a higher heat content than, for example, the expanded steam only in a turbine according to a conventional method. Therefore, according to an advantageous embodiment of the inventive concept, this excess heat can be used to heat a heat consumer.
  • the working medium to be heated can be used as an additional heat extraction process.
  • the excess heat for the preheating of the counterpressure steam system itself since then the additional process is suitable taking into account the losses in the heater gives an efficiency of 0.9.
  • the steam throughput of the counter-pressure steam system can be reduced.
  • the method according to the invention enables the increase in the power-heat ratio within the counter-pressure operation with a much better efficiency than in conventional methods.
  • the high efficiency is due to the higher specific energy generation corresponding to the higher temperature level of the steam before the expansion or to the reduction of the required external heat. If condensation turbines are used in a system that works according to the proposed method, the amount of cooling water is also reduced in comparison to conventional systems with condensation turbines, since the amount of steam for the condensation turbines can be reduced as a result of the increased power-heat ratio of the back pressure operation.
  • the steam of the counter-pressure steam system shown is generated in an evaporator 1, expanded in a high-pressure turbine 2 to a pressure of, for example, 39.2 10 5 / m 2 and fed into the medium-pressure steam rail at a temperature of 642 K.
  • the steam from this rail insofar as it was not consumed by heat consumers 11, was expanded directly into the low-pressure steam rail 16 via a turbine.
  • the steam is first heated essentially isobarically.
  • a recuperator 3 is used, in which part of the steam of the medium-pressure steam rail is heated to a temperature of 770 K, and a fuel-fired heater 4, in which the steam temperature is raised to 993 K.
  • the steam at this high temperature level is expanded in a turbine 5 connected to the heater to the pressure of the rail 16 with, for example, 9.8 10 5 N / m 2 and is introduced into the recuperator 3 via line 8 for isobaric cooling in the heat exchange with steam to be heated.
  • the temperature of the steam emerging from the turbine at 791 K drops to 653 K in recuperator 3.
  • This steam has a higher heat content than the conventional solution.
  • This excess heat is dissipated in the illustrated embodiment in the heat exchange with feed water for the evaporator 1.
  • the recuperator 3 is connected to a heat exchanger 6, from which the steam emerges at 494 K and enters the low-pressure steam rail 16.
  • the feed water is fed to the heat exchanger 6 via a line 14, which branches off from the line 17 for the condensate recirculation, and is then fed back into line 17.
  • the steam of the low-pressure steam rail 16 is fed to low-pressure process steam consumers 10 and condensed.
  • a number of pumps 12, 13 corresponding to the number of steam rails increases the pressure of the condensate and supplies the steam boiler 1 with feed water.
  • the following table 1 shows the temperature, pressure, specific enthalpy and specific entropy of the steam for the exemplary embodiment described at the points designated by letters a to f in the sketch.
  • Table 2 shows the specific consumption figures and outputs of the process example shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Control Of Turbines (AREA)
EP79103882A 1978-10-13 1979-10-10 Procédé de production d'énergie électrique dans un système à vapeur à contre-pression Expired EP0010254B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2844742 1978-10-13
DE19782844742 DE2844742A1 (de) 1978-10-13 1978-10-13 Verfahren zur gewinnung von elektrischer energie in einem gegendruckdampfsystem

Publications (2)

Publication Number Publication Date
EP0010254A1 true EP0010254A1 (fr) 1980-04-30
EP0010254B1 EP0010254B1 (fr) 1981-11-04

Family

ID=6052160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79103882A Expired EP0010254B1 (fr) 1978-10-13 1979-10-10 Procédé de production d'énergie électrique dans un système à vapeur à contre-pression

Country Status (6)

Country Link
US (1) US4328675A (fr)
EP (1) EP0010254B1 (fr)
JP (1) JPS5591708A (fr)
AT (1) AT378038B (fr)
CA (1) CA1150955A (fr)
DE (2) DE2844742A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5622605A (en) * 1993-11-05 1997-04-22 Simpson; Gary D. Process for desalinating water while producing power
JP3315800B2 (ja) * 1994-02-22 2002-08-19 株式会社日立製作所 蒸気タービン発電プラント及び蒸気タービン
RU2166643C2 (ru) * 1998-12-30 2001-05-10 Закрытое акционерное общество "Завод "Киров-Энергомаш" - дочернее общество АО "Кировский завод" Устройство утилизации перепада давлений в парогенерирующих системах
JP4486391B2 (ja) * 2004-03-30 2010-06-23 株式会社神戸製鋼所 余剰蒸気の有効利用装置
US8438849B2 (en) * 2007-04-17 2013-05-14 Ormat Technologies, Inc. Multi-level organic rankine cycle power system
USRE46316E1 (en) * 2007-04-17 2017-02-21 Ormat Technologies, Inc. Multi-level organic rankine cycle power system
EP2290200A1 (fr) * 2009-07-15 2011-03-02 Siemens Aktiengesellschaft Installation de centrale à vapeur dotée d'une unité de turbine à vapeur et récepteur de vapeur de traitement ainsi que procédé de fonctionnement d'une installation de centrale à vapeur dotée d'une unité de turbine à vapeur et récepteur de vapeur de traitement
US20110271676A1 (en) * 2010-05-04 2011-11-10 Solartrec, Inc. Heat engine with cascaded cycles
US8789371B2 (en) * 2011-01-03 2014-07-29 General Electric Company Power generation apparatus
CN104329127B (zh) * 2014-11-10 2016-03-30 中国电力工程顾问集团华东电力设计院有限公司 多机组联合扩容系统
EP3984983B1 (fr) * 2020-10-13 2025-11-26 Technische Universität München Méthanation à l'aide d'un turbocompresseur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1732009A (en) * 1927-11-03 1929-10-15 W S Garstow & Company Method and apparatus for development of power
DE884802C (de) * 1944-08-03 1953-07-30 Rudolf Dipl-Ing Hingst Dampfkraftanlage mit Zwischenueberhitzung
DE1004203B (de) * 1954-02-06 1957-03-14 Siemens Ag Heizkraftwerk mit Gegendruckturbine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2643519A (en) * 1949-03-02 1953-06-30 Richard C Powell Regenerative steam power plant in which an extraction turbine supplies steam to desuperheaters which serve to heat feed water
US3376706A (en) * 1965-06-28 1968-04-09 Angelino Gianfranco Method for obtaining mechanical energy from a thermal gas cycle with liquid phase compression
US3391539A (en) * 1967-08-16 1968-07-09 Gen Electric Pressure control and flow dispatching system for steam turbine powerplant
US4178761A (en) * 1977-06-17 1979-12-18 Schwartzman Everett H Heat source and heat sink pumping system and method
US4249384A (en) * 1978-08-03 1981-02-10 Harris Marion K Isothermal compression-regenerative method for operating vapor cycle heat engine
US4214451A (en) * 1978-11-13 1980-07-29 Systems Control, Inc. Energy cogeneration system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1732009A (en) * 1927-11-03 1929-10-15 W S Garstow & Company Method and apparatus for development of power
DE884802C (de) * 1944-08-03 1953-07-30 Rudolf Dipl-Ing Hingst Dampfkraftanlage mit Zwischenueberhitzung
DE1004203B (de) * 1954-02-06 1957-03-14 Siemens Ag Heizkraftwerk mit Gegendruckturbine

Also Published As

Publication number Publication date
CA1150955A (fr) 1983-08-02
ATA156579A (de) 1984-10-15
AT378038B (de) 1985-06-10
JPS5591708A (en) 1980-07-11
EP0010254B1 (fr) 1981-11-04
DE2961270D1 (en) 1982-01-14
DE2844742A1 (de) 1980-04-24
US4328675A (en) 1982-05-11

Similar Documents

Publication Publication Date Title
EP1649147B1 (fr) Procede et dispositif pour effectuer un cycle thermodynamique
EP1613841B1 (fr) Procede et dispositif de mise en oeuvre d'un processus cyclique thermodynamique
EP3362739B1 (fr) Production de vapeur industrielle au moyen d'une pompe à chaleur haute température
DE69429769T2 (de) Mehrwellen, zwischenheizungsgasturbine mit zwischenkühlung und wärmerückgewinnung
DE10335143B4 (de) Verfahren zur Erhöhung des Wirkungsgrades einer Gasturbinenanlage und dafür geeignete Gasturbinenanlage
DE69218206T2 (de) Auf dem organischen rankine zyklus basierende energieanlage und verfahren zum betrieb der anlage
DE102008045450A1 (de) Verfahren zum Betreiben eines thermodynamischen Kreislaufes sowie thermodynamischer Kreislauf
EP1771641B1 (fr) Procede et dispositif pour transferer de la chaleur d'une source de chaleur a un circuit thermodynamique comportant un medium dote d'au moins deux substances a evaporation et condensation non-isothermes
DD232738A5 (de) Verfahren zur gleichzeitigen erzeugung von waerme- und elektroenergie
EP0010254B1 (fr) Procédé de production d'énergie électrique dans un système à vapeur à contre-pression
DE102010060064A1 (de) Verfahren zur Steigerung der Leistungsabgabe eines Gas- und Dampf-Kombikraftwerks während ausgewählter Betriebszeiträume
EP0008680A2 (fr) Procédé de production d'énergie thermique en combinant une unité de puissance thermique avec une pompe à chaleur
DE102010035487A1 (de) Verfahren und Vorrichtung zur Stromspeicherung
EP1038094B1 (fr) Procede de mise en action de force motrice a vapeur multi-etage pour la production d'energie electrique dans un cycle et dispositif pour la mise en oeuvre de ce procede
EP4177446B1 (fr) Procédé de fonctionnement d'une installation chimique
DE437715C (de) Einrichtung zur Versorgung der Energieerzeugungs- und Trocknungsbetriebe in Braunkohlenbrikettfabriken mit Dampf
DE2651888A1 (de) Verfahren und vorrichtung zur nutzbarmachung von waerme eines waermetraegers niederer temperatur
DE102010046584A1 (de) Verfahren zur Erzeugung mechanischer / elektrischer Energie für niedrige Prozesstemperaturen
AT68741B (de) Verfahren zur Verbindung eines Dampfkraftbetriebes von wechselndem Dampfverbrauche mit einem oder mehreren Abdampfverwertungsbetrieben.
DE3833832A1 (de) Verfahren zum betreiben einer waerme-kraft-anlage
EP4105551A1 (fr) Procédé de génération de l'énergie électrique
DE19856448A1 (de) Mehrstufiger Dampfkraft-/arbeitsprozeß für die Elektroenergiegewinnung im Kreisprozeß sowie Anordnung zu seiner Durchführung
EP4707551A1 (fr) Agencement et procédé de production de produits de départ de courant électrique et de vapeur d'eau dans une centrale électrique hybride
EP0381825A1 (fr) Procédé pour la production d'énergie mécanique lors de l'oxydation NH3 dans le procédé HNO3
DE102010048292A1 (de) Verfahren zum Betrieb eines Niedertemperaturkraftwerks

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

AK Designated contracting states

Designated state(s): BE CH DE FR IT NL SE

17P Request for examination filed

Effective date: 19801006

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE CH DE FR IT NL SE

REF Corresponds to:

Ref document number: 2961270

Country of ref document: DE

Date of ref document: 19820114

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19820930

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19821031

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19821231

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19831011

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Effective date: 19831031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19840501

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19841009

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19841106

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19841231

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19871031

BERE Be: lapsed

Owner name: LINDE A.G.

Effective date: 19871031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19880630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19880701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 79103882.1

Effective date: 19850607

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT