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DE2928691A1 - Exhaust steam condensation heat utilisation - uses condenser as evaporator and feed heater as condenser for refrigerating gas - Google Patents

Exhaust steam condensation heat utilisation - uses condenser as evaporator and feed heater as condenser for refrigerating gas

Info

Publication number
DE2928691A1
DE2928691A1 DE19792928691 DE2928691A DE2928691A1 DE 2928691 A1 DE2928691 A1 DE 2928691A1 DE 19792928691 DE19792928691 DE 19792928691 DE 2928691 A DE2928691 A DE 2928691A DE 2928691 A1 DE2928691 A1 DE 2928691A1
Authority
DE
Germany
Prior art keywords
condenser
gas
steam
evaporator
waste heat
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Withdrawn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
DE19792928691
Other languages
German (de)
Inventor
Mohamed Omar Ing Grad Jannoun
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.)
JANNOUN MOHAMED OMAR ING
Original Assignee
JANNOUN MOHAMED OMAR ING
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 JANNOUN MOHAMED OMAR ING filed Critical JANNOUN MOHAMED OMAR ING
Priority to DE19792928691 priority Critical patent/DE2928691A1/en
Publication of DE2928691A1 publication Critical patent/DE2928691A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K17/00Using steam or condensate extracted or exhausted from steam engine plant
    • F01K17/005Using steam or condensate extracted or exhausted from steam engine plant by means of a heat pump
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K9/00Plants characterised by condensers arranged or modified to co-operate with the engines
    • F01K9/003Plants characterised by condensers arranged or modified to co-operate with the engines condenser cooling circuits
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/14Combined heat and power generation [CHP]

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)

Abstract

The process for condensing power station exhaust steam and utilising the waste heat involves adding a gas refrigeration-circuit to the otherwise conventional steam system. The steam condenser becomes the gas evaporator and the feed heater the condenser. The refrigeration circuit can be single or in cascade. Before the gas condenser, the feed passes through an economiser or steam preheater. As an alternative to returning the gas condensation heat to the feed water, this can be transferred to a remote-heating system. The two alternatives can be used seasonally.

Description

Verfahren zur Kühlung von Kondensationskraftwerken undProcess for cooling condensing power plants and

Äbwärmenutzung.Use of waste heat.

Bei der Erzeugung von elektrischem Strom in Kondensationskraftwerken muß etwa 65% der eingesetzten Primärenergie als Abwärme an die Umwelt abgeführt werden. Diese Abwärme wird durch Austausch an die Kühlmedien der Umwelt, Wasser oder Luft, verteilt, und geht dem Prozeß der Dampfbildung und Stromerzeugung völlig verloren. Verfahren wie Frischwasser oder Nassekühlung,sowie Trockene-Rückkühlung, werden in Kühlturmen angewandt. Diese Abwärme, ist die Kondensationswärme, die dem Abdampf nach der Dampfturbine,durch Kühlung entzogen wird, um daraus Kondensat zu erzeugen.When generating electricity in condensing power plants 65% of the primary energy used must be discharged into the environment as waste heat will. This waste heat is exchanged to the cooling medium of the environment, water or air, and completely goes into the process of steam formation and electricity generation lost. Processes such as fresh water or wet cooling, as well as dry recooling, are used in cooling towers. This waste heat is the heat of condensation, which is the Exhaust steam after the steam turbine is withdrawn by cooling in order to convert it into condensate produce.

Der Wirkungsgrad des gesamten Prozeßes steigt mit sinkender Endtemperatur des Abdampfes und dadurch erzeugtes Vakuum im Kondensator.Die Temperatur und Verfügbarkeit der Kühlmedien in der Umwelt,setzen diese Notwendigkeit,je nach Ort und Jahreszeit,physikalische und wirtschaftliche Grenzen.The efficiency of the entire process increases as the final temperature falls of the exhaust steam and the resulting vacuum in the condenser. The temperature and availability of the cooling media in the environment, this necessity, depending on the location and time of year, is physical and economic limits.

Die Erfindung betrifft ein Verfahren,wobei ,die Abkühlung des Abdampfes unabhängig von den Umweltbedingungen und ohae Abwärme an die Umwelt,durch einen Gaskältekreis erfolgt.The invention relates to a method whereby the cooling of the exhaust steam regardless of the environmental conditions and ohae waste heat to the environment, by one Gas refrigeration cycle takes place.

Der Gaskältekreis besteht aus Kältekompressor mit Antrieb, Verflüssiger-Regelventil-Verdampfer-Schaltung.The gas refrigeration circuit consists of a refrigeration compressor with drive, condenser control valve and evaporator circuit.

Dem Abdampf,wird die Abwärme im Verdampfer entzogen und dem Kondensat,auf einem höhren Gemperaturniveau,im Verflüssiger zugeführt.Die Kesselspeisepumpe pumpt das Kondensat vom Verdampfer ab,drückt es durch einen Rauchgasvorwärmer und anschließend den Verflüssiger,wo das Kondensat die Vorwärmeendtemperatur erreicht,bevor es durch ein Drosselventil in die Kesselanlage eingespeist wird.The waste heat is extracted from the exhaust steam in the evaporator and fed to the condensate, at a higher temperature level, in the condenser. The boiler feed pump pumps the condensate from the evaporator, pushes it through a flue gas preheater and then the condenser, where the condensate is the preheating end temperature is reached before it is fed into the boiler system through a throttle valve.

Der Gaskältekreis,kann als einen einfacher Kreis,oder in Kaskadenschaltung zweier weise ausgeführt werden.Durch eine Kaskadensche g,kann der Abdampf bei etwa 5 C kondensieren - daß Kondensat auf eine Vorwärmeendtemperatur von etwa 100-130 C angehoben werden.Das Kondensat kann in die Kesselanlage als n eine überhitzte Flüssigkeit eingedrückt, und die Kesselanlage arbeitet nur als Dampfüberhitzer.The gas refrigeration cycle can be as a simple circuit, or in Cascade connection can be carried out in two ways. By means of a cascade circuit, the exhaust steam can condense at about 5 C - that condensate can be raised to a preheating end temperature of about 100-130 C. The condensate can be pressed into the boiler system as a superheated liquid, and the boiler system only works as a steam superheater.

Durch dieses Verfahren,ist der Abdampf zu Kondensat abgekühlt, und die Abwärme,für die Dampfbildung,auf ein höheres Temperaturniveau angehoben und zurückgewonnen.Die hierfür geleistete VerdichtungsarVeit im Antrieb des Kältekompressors,stellt nur ein Bruchteil der erzielten Energieeinsparung.With this process, the exhaust steam is cooled to condensate, and the waste heat, for the steam formation, is raised to a higher temperature level and recovered a fraction of the energy savings achieved.

Die Abwärmenutzung ist in einer Kraft/Wärme-Kopplung zu erreichen,in dem die Abwärme im Verflüssiger,ststt dem Kondensat, wahlweise, einem Fernwärmenetz überführt werdeneAbb2.The use of waste heat can be achieved in a power / heat coupling the waste heat in the condenser, the condensate, optionally, a district heating network be transferred eFig. 2.

Ein Zusatz-Verflüssiger und eine Umschaltungseinrichtung werden für diese Kopplung zusätzlich benötigt.Durch Umschaltung kann vom Winter auf Sommer-betrieb übergegangen werden. LeerseiteAn additional condenser and a switching device are used for this coupling is also required. By switching from winter to summer operation be passed over. Blank page

Claims (4)

PatentansprUche Verfahren zur Kühlung von Kondensationskraftwerken und Abwärmenutzung dadurch gekennzeichnet,daß- dem Abdampf,die Abwärme im Verdampfer eines Gaskältekreises entzogen, und dem Kondensat im Verflüssiger zugeführt eird. Patent claims method for cooling condensing power plants and waste heat utilization, characterized in that the waste steam, the waste heat in the evaporator withdrawn from a gas cooling circuit and fed to the condensate in the condenser. 2. Verfahren nach Anspruch 1 daduch gekennzeichnet,daß der Gaskältekreis,als ein einfacher Kreis,oder als Kaskadenschal--tung zweier Kreise ausgeführt wird.2. The method according to claim 1 daduch characterized in that the gas refrigeration cycle as a simple circuit or as a cascade connection of two circuits. 3. Verfahren nach den Ansprüchen 1 und 2 dadurch gekennzeichnet,daß,das kondensat,im Rauchgasvorwärmer oder mit Dampf vorgewärmt,bevor es auf Vorwärmeendtemperatur erhitzt wird.3. The method according to claims 1 and 2, characterized in that, the condensate, preheated in the flue gas preheater or with steam before it reaches the final preheating temperature is heated. 4. Verfahren nach den Ansprüchen 1 und 2 und 3 dadurch gekennzeichnet,daß die Abwärme im Verflüssiger,statt dem Kondensat, wahlweise, einem Fernwärmenetz, in einer Kraft/Wärme -Eopplung überführt wird.4. Process according to claims 1 and 2 and 3, characterized in that the waste heat in the condenser, instead of the condensate, optionally, a district heating network, is converted into a power / heat coupling.
DE19792928691 1979-07-16 1979-07-16 Exhaust steam condensation heat utilisation - uses condenser as evaporator and feed heater as condenser for refrigerating gas Withdrawn DE2928691A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792928691 DE2928691A1 (en) 1979-07-16 1979-07-16 Exhaust steam condensation heat utilisation - uses condenser as evaporator and feed heater as condenser for refrigerating gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792928691 DE2928691A1 (en) 1979-07-16 1979-07-16 Exhaust steam condensation heat utilisation - uses condenser as evaporator and feed heater as condenser for refrigerating gas

Publications (1)

Publication Number Publication Date
DE2928691A1 true DE2928691A1 (en) 1981-02-12

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118101A1 (en) * 1981-04-16 1983-02-03 Ellrich, Wolfgang, Dipl.-Ing., 2000 Braak Power/heat feedback
US10422250B2 (en) 2012-09-27 2019-09-24 Malta Inc. Pumped thermal systems with variable stator pressure ratio control
US10436109B2 (en) 2016-12-31 2019-10-08 Malta Inc. Modular thermal storage
US10458284B2 (en) 2016-12-28 2019-10-29 Malta Inc. Variable pressure inventory control of closed cycle system with a high pressure tank and an intermediate pressure tank
US10801404B2 (en) 2016-12-30 2020-10-13 Malta Inc. Variable pressure turbine
US10907513B2 (en) 2010-03-04 2021-02-02 Malta Inc. Adiabatic salt energy storage
US10907510B2 (en) 2016-12-28 2021-02-02 Malta Inc. Storage of excess heat in cold side of heat engine
US10907548B2 (en) 2016-12-29 2021-02-02 Malta Inc. Use of external air for closed cycle inventory control
US10920667B2 (en) 2016-12-28 2021-02-16 Malta Inc. Pump control of closed cycle power generation system
US11053847B2 (en) 2016-12-28 2021-07-06 Malta Inc. Baffled thermoclines in thermodynamic cycle systems
US11286804B2 (en) 2020-08-12 2022-03-29 Malta Inc. Pumped heat energy storage system with charge cycle thermal integration
US11396826B2 (en) 2020-08-12 2022-07-26 Malta Inc. Pumped heat energy storage system with electric heating integration
US11454167B1 (en) 2020-08-12 2022-09-27 Malta Inc. Pumped heat energy storage system with hot-side thermal integration
US11480067B2 (en) 2020-08-12 2022-10-25 Malta Inc. Pumped heat energy storage system with generation cycle thermal integration
US11486305B2 (en) 2020-08-12 2022-11-01 Malta Inc. Pumped heat energy storage system with load following
US11678615B2 (en) 2018-01-11 2023-06-20 Lancium Llc Method and system for dynamic power delivery to a flexible growcenter using unutilized energy sources
US11852043B2 (en) 2019-11-16 2023-12-26 Malta Inc. Pumped heat electric storage system with recirculation
US11982228B2 (en) 2020-08-12 2024-05-14 Malta Inc. Pumped heat energy storage system with steam cycle
US12123327B2 (en) 2020-08-12 2024-10-22 Malta Inc. Pumped heat energy storage system with modular turbomachinery
US12428979B2 (en) 2021-12-14 2025-09-30 Malta Inc. Pumped heat energy storage system integrated with coal-fired energy generation unit

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118101A1 (en) * 1981-04-16 1983-02-03 Ellrich, Wolfgang, Dipl.-Ing., 2000 Braak Power/heat feedback
US10907513B2 (en) 2010-03-04 2021-02-02 Malta Inc. Adiabatic salt energy storage
US11761336B2 (en) 2010-03-04 2023-09-19 Malta Inc. Adiabatic salt energy storage
US10422250B2 (en) 2012-09-27 2019-09-24 Malta Inc. Pumped thermal systems with variable stator pressure ratio control
US10428694B2 (en) 2012-09-27 2019-10-01 Malta Inc. Pumped thermal and energy storage system units with pumped thermal system and energy storage system subunits
US10428693B2 (en) 2012-09-27 2019-10-01 Malta Inc. Pumped thermal systems with dedicated compressor/turbine pairs
US11754319B2 (en) 2012-09-27 2023-09-12 Malta Inc. Pumped thermal storage cycles with turbomachine speed control
US10443452B2 (en) 2012-09-27 2019-10-15 Malta Inc. Methods of hot and cold side charging in thermal energy storage systems
US10458283B2 (en) 2012-09-27 2019-10-29 Malta Inc. Varying compression ratios in energy storage and retrieval systems
US10458721B2 (en) * 2012-09-27 2019-10-29 Malta Inc. Pumped thermal storage cycles with recuperation
US11156385B2 (en) 2012-09-27 2021-10-26 Malta Inc. Pumped thermal storage cycles with working fluid management
US10920674B2 (en) 2016-12-28 2021-02-16 Malta Inc. Variable pressure inventory control of closed cycle system with a high pressure tank and an intermediate pressure tank
US11371442B2 (en) 2016-12-28 2022-06-28 Malta Inc. Variable pressure inventory control of closed cycle system with a high pressure tank and an intermediate pressure tank
US11591956B2 (en) 2016-12-28 2023-02-28 Malta Inc. Baffled thermoclines in thermodynamic generation cycle systems
US11512613B2 (en) 2016-12-28 2022-11-29 Malta Inc. Storage of excess heat in cold side of heat engine
US10920667B2 (en) 2016-12-28 2021-02-16 Malta Inc. Pump control of closed cycle power generation system
US11053847B2 (en) 2016-12-28 2021-07-06 Malta Inc. Baffled thermoclines in thermodynamic cycle systems
US10458284B2 (en) 2016-12-28 2019-10-29 Malta Inc. Variable pressure inventory control of closed cycle system with a high pressure tank and an intermediate pressure tank
US12129791B2 (en) 2016-12-28 2024-10-29 Malta Inc. Baffled thermoclines in thermodynamic cycle systems
US11454168B2 (en) 2016-12-28 2022-09-27 Malta Inc. Pump control of closed cycle power generation system
US10907510B2 (en) 2016-12-28 2021-02-02 Malta Inc. Storage of excess heat in cold side of heat engine
US12012902B2 (en) 2016-12-28 2024-06-18 Malta Inc. Variable pressure inventory control of closed cycle system with a high pressure tank and an intermediate pressure tank
US11927130B2 (en) 2016-12-28 2024-03-12 Malta Inc. Pump control of closed cycle power generation system
US11578622B2 (en) 2016-12-29 2023-02-14 Malta Inc. Use of external air for closed cycle inventory control
US10907548B2 (en) 2016-12-29 2021-02-02 Malta Inc. Use of external air for closed cycle inventory control
US11352951B2 (en) 2016-12-30 2022-06-07 Malta Inc. Variable pressure turbine
US10801404B2 (en) 2016-12-30 2020-10-13 Malta Inc. Variable pressure turbine
US10830134B2 (en) 2016-12-31 2020-11-10 Malta Inc. Modular thermal storage
US10436109B2 (en) 2016-12-31 2019-10-08 Malta Inc. Modular thermal storage
US11655759B2 (en) 2016-12-31 2023-05-23 Malta, Inc. Modular thermal storage
US11678615B2 (en) 2018-01-11 2023-06-20 Lancium Llc Method and system for dynamic power delivery to a flexible growcenter using unutilized energy sources
US11852043B2 (en) 2019-11-16 2023-12-26 Malta Inc. Pumped heat electric storage system with recirculation
US11578650B2 (en) 2020-08-12 2023-02-14 Malta Inc. Pumped heat energy storage system with hot-side thermal integration
US11486305B2 (en) 2020-08-12 2022-11-01 Malta Inc. Pumped heat energy storage system with load following
US11840932B1 (en) 2020-08-12 2023-12-12 Malta Inc. Pumped heat energy storage system with generation cycle thermal integration
US11846197B2 (en) 2020-08-12 2023-12-19 Malta Inc. Pumped heat energy storage system with charge cycle thermal integration
US11480067B2 (en) 2020-08-12 2022-10-25 Malta Inc. Pumped heat energy storage system with generation cycle thermal integration
US11885244B2 (en) 2020-08-12 2024-01-30 Malta Inc. Pumped heat energy storage system with electric heating integration
US11454167B1 (en) 2020-08-12 2022-09-27 Malta Inc. Pumped heat energy storage system with hot-side thermal integration
US11982228B2 (en) 2020-08-12 2024-05-14 Malta Inc. Pumped heat energy storage system with steam cycle
US11396826B2 (en) 2020-08-12 2022-07-26 Malta Inc. Pumped heat energy storage system with electric heating integration
US12123347B2 (en) 2020-08-12 2024-10-22 Malta Inc. Pumped heat energy storage system with load following
US12123327B2 (en) 2020-08-12 2024-10-22 Malta Inc. Pumped heat energy storage system with modular turbomachinery
US11286804B2 (en) 2020-08-12 2022-03-29 Malta Inc. Pumped heat energy storage system with charge cycle thermal integration
US12173648B2 (en) 2020-08-12 2024-12-24 Malta Inc. Pumped heat energy storage system with thermal plant integration
US12173643B2 (en) 2020-08-12 2024-12-24 Malta Inc. Pumped heat energy storage system with hot-side thermal integration
US12428989B2 (en) 2020-08-12 2025-09-30 Malta Inc. Pumped heat energy storage system with load following
US12428979B2 (en) 2021-12-14 2025-09-30 Malta Inc. Pumped heat energy storage system integrated with coal-fired energy generation unit

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