EP2606214A1 - Stationary power plant, in particular a gas power plant, for generating electricity - Google Patents

Stationary power plant, in particular a gas power plant, for generating electricity

Info

Publication number
EP2606214A1
EP2606214A1 EP12702762.1A EP12702762A EP2606214A1 EP 2606214 A1 EP2606214 A1 EP 2606214A1 EP 12702762 A EP12702762 A EP 12702762A EP 2606214 A1 EP2606214 A1 EP 2606214A1
Authority
EP
European Patent Office
Prior art keywords
power plant
internal combustion
working medium
combustion engine
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Withdrawn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
EP12702762.1A
Other languages
German (de)
French (fr)
Inventor
Jens Grieser
Jürgen Berger
Stephan Bartosch
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.)
SteamDrive GmbH
Original Assignee
Voith Patent 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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP2606214A1 publication Critical patent/EP2606214A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/08—Anti-ageing preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
    • A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
    • 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
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/065—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle the combustion taking place in an internal combustion piston engine, e.g. a diesel engine
    • 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
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
    • F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
    • F02B41/02—Engines with prolonged expansion
    • F02B41/10—Engines with prolonged expansion in exhaust turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
    • F02G5/02—Profiting from waste heat of exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D10/00—District heating systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
    • A61K2800/87—Application Devices; Containers; Packaging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/16—Waste heat
    • F24D2200/26—Internal combustion engine
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/17—District heating
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • Stationary power plant in particular gas power plant, for power generation
  • the present invention relates to a stationary power plant for power generation, in particular a gas power plant, in detail according to the preamble of
  • the power plant is designed as a combined heat and power plant (CHP) with a combined heat and power.
  • CHP combined heat and power plant
  • Power plants are generally modular systems for the production of electrical energy and preferably heat that can be operated, for example, directly at the place of heat consumption or can feed useful heat into a district heating network or district heating network. Their mode of operation is based on the principle of combined heat and power.
  • an internal combustion engine into consideration, preferably a diesel or gas engine.
  • Embodiments with a gas turbine are also known.
  • US 2007/0007771 AI describes an internal combustion engine whose waste heat is used in a steam cycle with a turbine and a condenser.
  • the turbine drives a generator.
  • the present invention is based on the object, a stationary power plant of the type mentioned in terms of efficiency and the
  • An inventive stationary power plant which is designed in particular as a gas power plant, is used to generate electricity and has an internal combustion engine, by means of which an electric generator is driven.
  • Internal combustion engine has a combustion medium inlet and a Exhaust outlet on. At the combustion medium inlet is a
  • Combustion medium supply in particular gas supply, connected to the combustion medium, in particular gas> via the combustion medium inlet into the combustion chamber, in particular in the form of one or more
  • An exhaust gas stream of the internal combustion engine is discharged via the exhaust gas outlet, the exhaust gas stream containing waste heat.
  • the electric generator which is driven by the internal combustion engine, is coupled to a power grid or coupled to such a power supply to feed the electricity generated by it into this power grid.
  • rectifier or converter or other electrical components can be provided between the generator and the power grid.
  • Cooling water flow cooled, wherein the heat transfer medium waste heat of the engine is supplied.
  • the waste heat of the internal combustion engine can be directly transferred to the heat transfer stream in the internal combustion engine itself, in particular within the engine housing, and / or be withdrawn from the exhaust gas flow generated by the internal combustion engine and the
  • Heat transfer stream are supplied, for example via a heat exchanger in the exhaust stream.
  • the heat absorbed by the heat transfer heat of the engine is then a district heating network, local heating network,
  • the steam cycle includes a heat exchanger arranged in the exhaust gas flow, by means of which waste heat of the exhaust gas flow for the partial or complete evaporation of the Working medium is transferred to the working medium.
  • Heat exchangers could therefore also be called evaporators.
  • the steam cycle comprises a Hubkolbenexpander, in which the
  • the Hubkolbenexpander can also be coupled to a second additional electrical generator.
  • the coupling of the Hubkolbenexpanders to the internal combustion engine and / or the electric generator, which is driven by the internal combustion engine, is advantageously made by means of a releasable coupling. This allows that in case of problems in the steam cycle or the Hubkolbenexpander the clutch can be easily solved, so that the power plant can continue to operate as before without additional waste heat. Accordingly, the availability of the power plant is not limited. Furthermore, it is possible, without availability restrictions, the maintenance intervals of the steam cycle or the Hubkolbenexpanders regardless of the
  • the reciprocating piston expander has a crankshaft which is connected to a crankshaft of the internal combustion engine, in particular directly via the clutch.
  • the internal combustion engine is advantageously designed as a gas engine, wherein this gas is then supplied via a gas supply at the combustion medium inlet, in particular together with air, as a combustion medium.
  • the working medium of the steam cycle is water or a water mixture.
  • the heat transfer stream which is used for cooling of the internal combustion engine, at the same time the working medium of the steam cycle and in particular at the same time in the heat utilization system in a closed circuit or open current guided medium.
  • the heat of condensation of the working medium of the steam cycle is the heat transfer stream via a heat exchanger, in this case as the second
  • a working medium reservoir may be provided to compensate for leaks and / or volume fluctuations of the working medium.
  • the working medium reservoir is designed as a container through which the working medium flows, that is, with a
  • the internal combustion engine and the reciprocating piston expander advantageously operate at the same speed level, in particular the drive shafts run
  • Both machines both of which are advantageously designed as reciprocating engines, according to one embodiment jointly drive one and the same generator or at a plurality of
  • the Hubkolbenexpander can be designed for example as a two-cylinder, three-cylinder, four-cylinder, five-cylinder or six-cylinder engine.
  • the internal combustion engine is designed as a gas engine, biogas,
  • combustion media in particular natural gas, landfill gas, wood gasification gas or sewage gas a suitable combustion medium.
  • Other combustion media are possible, however.
  • the entire steam cycle and its integration into the power plant can be controlled and / or monitored by a common system control.
  • FIG. 1 shows an internal combustion engine 1, here in the form of a gas engine, comprising a combustion medium inlet 2 and a
  • Combustion medium supply 19 is supplied to the one air from an air inlet 4 and the other gas from a gas supply 5 for common combustion in the internal combustion engine 1.
  • Hot exhaust gas flows via the exhaust gas outlet 3 first via a heat exchanger 6, by means of which a heat transfer stream 7, in particular cooling water flow, is heated, and then a
  • Heat exchanger 8 which serves as an evaporator for the working medium of a
  • the working medium of the steam cycle 9 is pumped by the heat exchanger 8 by means of a feed pump 11, which is driven by the Hubkolbenexpander 12, where it evaporates and then flows into the Hubkolbenexpander 12, where it expands while performing mechanical work.
  • a feed pump 11 which is driven by the Hubkolbenexpander 12, where it evaporates and then flows into the Hubkolbenexpander 12, where it expands while performing mechanical work.
  • the internal combustion engine 1 or its crankshaft is driven, which in turn utilizing the in
  • Combustion engine 1 paid mechanical work the generator 13 drives.
  • the generator 13 feeds the electric power generated by it into a power grid 14.
  • Hubkolbenexpander 12 working fluid flows through a condenser 15 in which it is condensed, and further through the
  • the condenser 15 is at the same time a second heat exchanger in the heat transfer stream 7 and transmits the heat of condensation to the heat transfer stream 7 in order to heat it, before the heat transfer stream 7 a
  • Heat utilization system 17 for example local heating network, district heating network or process heat network, is supplied.
  • the heat transfer stream 7 can, as
  • Heat transfer stream 7 are exchanged or it could be more Heat exchangers may be provided in the power plant for introducing heat into the heat transfer stream 7, for example in an exhaust gas recirculation of the
  • the reciprocating piston expander 12 is connected via a releasable coupling 18 to the internal combustion engine 1, wherein the clutch 18 according to a first embodiment is only solvable or closable at standstill and according to an alternative embodiment in the operation of the
  • the feed pump 11 could also be driven by the internal combustion engine 1 or by an additional drive, such as an electric motor.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Birds (AREA)
  • Gerontology & Geriatric Medicine (AREA)
  • Dermatology (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The invention relates to a stationary power plant, in particular a gas power plant, for generating electricity; having an internal combustion engine comprising a fuel medium inlet and an exhaust gas outlet, an exhaust gas flow of the internal combustion engine being exhausted by means of the exhaust gas outlet; having an electrical generator driven by the internal combustion engine for generating electricity, and coupled or able to be coupled to an electrical grid in order to feed the generated electricity into said grid; having a fuel medium supply connected to the fuel medium inlet; a steam circuit in which a working medium is circulated by means of a feed pump comprising a heat exchanger disposed in the exhaust gas flow, by means of which waste heat of the exhaust gas flow is transferred into the working medium for partially or completely evaporating the working medium, and further comprising a condenser in which the working medium partially or completely condenses. The invention is characterized in that a reciprocating piston expander is provided in the steam circuit, in which the working medium expands to produce mechanical work, and the reciprocating piston expander is mechanically connected to the internal combustion engine and/or the electrical generator by means of a releasable clutch.

Description

Stationäres Kraftwerk, insbesondere Gaskraftwerk, zur Stromerzeugung  Stationary power plant, in particular gas power plant, for power generation
Die vorliegende Erfindung betrifft ein stationäres Kraftwerk zur Stromerzeugung, insbesondere ein Gaskraftwerk, im Einzelnen gemäß dem Oberbegriff von The present invention relates to a stationary power plant for power generation, in particular a gas power plant, in detail according to the preamble of
Anspruch 1. Gemäß einer besonders günstigen Ausführungsform ist das Kraftwerk als Blockheizkraftwerk (BHKW) mit einer Kraft-Wärme-Kopplung ausgeführt. Claim 1. According to a particularly advantageous embodiment, the power plant is designed as a combined heat and power plant (CHP) with a combined heat and power.
Kraftwerke, insbesondere Blockheizkraftwerke, sind in der Regel modular aufgebaute Anlagen zur Gewinnung elektrischer Energie und vorzugsweise Wärme, die beispielsweise unmittelbar am Ort des Wärmeverbrauchs betrieben werden können oder aber Nutzwärme in ein Nahwärmenetz oder Fernwärmenetz einspeisen können. Ihre Arbeitsweise beruht auf dem Prinzip der Kraft-Wärme- Kopplung. Power plants, especially combined heat and power plants, are generally modular systems for the production of electrical energy and preferably heat that can be operated, for example, directly at the place of heat consumption or can feed useful heat into a district heating network or district heating network. Their mode of operation is based on the principle of combined heat and power.
In der Regel kommt als Antriebsmaschine für den elektrischen Generator ein Verbrennungsmotor in Betracht, vorzugsweise ein Diesel- oder Gasmotor. Auch Ausführungsformen mit einer Gasturbine sind bekannt. As a rule, comes as a prime mover for the electric generator, an internal combustion engine into consideration, preferably a diesel or gas engine. Embodiments with a gas turbine are also known.
Durch die Kombination der Abwärmenutzung für eine Wärmestromerzeugung und Erzeugung elektrischer Energie durch Antrieb des Generators mit dem die By combining the use of waste heat for heat generation and generation of electrical energy by driving the generator with the
Abwärme erzeugenden Verbrennungsmotor können sehr hohe Wirkungsgrade erzielt werden, wodurch die eingesetzte Primärenergie zu 80 bis über 90 Prozent genutzt werden kann. Dies bedeutet im Vergleich zu herkömmlichen Kraftwerken, wie Dampfkraftwerken, eine Einsparung von bis zu 40 Prozent der Primärenergie. Solche stationäre Kraftwerke, die in der Regel elektrische Leistungen zwischen 5 kW und 5 oder 10 MW aufweisen, werden daher bereits als nahezu ideal angesehen. Trotzdem bedeutet eine weitere Wirkungsgradsteigerung eine noch bessere Ausnutzung vorhandener Primärenergien. Problematisch bei weiteren diesbezüglichen Verbesserungen ist jedoch, dass eine komplexere Ausgestaltung des bisher mechanisch sehr robusten Systems die sehr hohe Verfügbarkeit bekannter Kraftwerke der eingangs dargestellten Art potenziell einschränkt. Very high efficiencies can be achieved with waste heat generating internal combustion engines, whereby the used primary energy can be used to 80 to over 90 per cent. This represents a saving of up to 40 percent of the primary energy compared to conventional power plants, such as steam power plants. Such stationary power plants, which usually have electrical power between 5 kW and 5 or 10 MW, are therefore already considered to be almost ideal. Nevertheless, a further increase in efficiency means even better utilization of existing primary energies. The problem with further improvements in this respect, however, is that a more complex design the previously mechanically very robust system potentially limits the very high availability of known power plants of the type described above.
US 2007/0007771 AI beschreibt einen Verbrennungsmotor, dessen Abwärme in einem Dampfkreislauf mit einer Turbine und einem Kondensator genutzt wird. Die Turbine treibt einen Generator an. US 2007/0007771 AI describes an internal combustion engine whose waste heat is used in a steam cycle with a turbine and a condenser. The turbine drives a generator.
Die nachveröffentlichte Offenlegungsschrift DE 10 2010 000 487 AI beschreibt die Nutzung der Abwärme einer Antriebsmaschine von Blockheizkraftwerken, bei welcher eine Verbrennungskraftmaschine und eine Expansionskraftmaschine mittels einer direkten mechanischen Kopplung gemeinsam eine Kurbelwelle antreiben können. The post-published disclosure DE 10 2010 000 487 AI describes the use of waste heat of a prime mover of combined heat and power plants, in which an internal combustion engine and an expansion engine can drive a crankshaft together by means of a direct mechanical coupling.
Zum weiteren Stand der Technik wird auf die US 2010/0242476 AI verwiesen. For further prior art, reference is made to US 2010/0242476 AI.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein stationäres Kraftwerk der eingangs genannten Art hinsichtlich des Wirkungsgrades und der The present invention is based on the object, a stationary power plant of the type mentioned in terms of efficiency and the
Energieausbeute noch weiter zu optimieren. Dabei sollen die bestehenden Vorteile unverändert weiter genutzt werden können und die Optimierung soll in keiner Weise die Verfügbarkeit des jeweiligen Kraftwerks einschränken. Optimize energy yield even further. The existing advantages should continue to be used unchanged and the optimization should in no way limit the availability of the respective power plant.
Die erfindungsgemäße Aufgabe wird durch ein stationäres Kraftwerk mit den Merkmalen von Anspruch 1 gelöst. In den abhängigen Ansprüchen sind The object of the invention is achieved by a stationary power plant with the features of claim 1. In the dependent claims are
vorteilhafte und besonders zweckmäßige Ausgestaltungen der Erfindung advantageous and particularly expedient embodiments of the invention
angegeben. specified.
Ein erfindungsgemäßes stationäres Kraftwerk, das insbesondere als Gaskraftwerk ausgeführt ist, dient der Stromerzeugung und weist einen Verbrennungsmotor auf, mittels welchem ein elektrischer Generator angetrieben wird. Der An inventive stationary power plant, which is designed in particular as a gas power plant, is used to generate electricity and has an internal combustion engine, by means of which an electric generator is driven. Of the
Verbrennungsmotor weist einen Verbrennungsmediumeinlass und einen Abgasauslass auf. Am Verbrennungsmediumeinlass ist eine Internal combustion engine has a combustion medium inlet and a Exhaust outlet on. At the combustion medium inlet is a
Verbrennungsmediumzufuhr, insbesondere Gaszufuhr, angeschlossen, um das Verbrennungsmedium, insbesondere Gas> über den Verbrennungsmediumeinlass in den Brennraum, insbesondere in Form von einem oder mehreren Combustion medium supply, in particular gas supply, connected to the combustion medium, in particular gas> via the combustion medium inlet into the combustion chamber, in particular in the form of one or more
EExpansionszylindern, einzuleiten. Über den Abgasauslass wird ein Abgasstrom des Verbrennungsmotors abgeführt, wobei der Abgasstrom Abwärme beinhaltet. EExpansionszylindern to initiate. An exhaust gas stream of the internal combustion engine is discharged via the exhaust gas outlet, the exhaust gas stream containing waste heat.
Der elektrische Generator, der vom Verbrennungsmotor angetrieben wird, ist mit einem Stromnetz gekoppelt oder an ein solches koppelbar, um den von ihm erzeugten Strom in dieses Stromnetz einzuspeisen. Selbstverständlich können zwischen Generator und Stromnetz Gleichrichter beziehungsweise Umrichter oder andere elektrische Bauteile vorgesehen sein. The electric generator, which is driven by the internal combustion engine, is coupled to a power grid or coupled to such a power supply to feed the electricity generated by it into this power grid. Of course, rectifier or converter or other electrical components can be provided between the generator and the power grid.
Wenn das Kraftwerk nach dem Kraft-Wärme-Kopplungsprinzip arbeitet, wird der Verbrennungsmotor mittels eines Wärmeträgerstromes, insbesondere When the power plant operates on the combined heat and power principle, the internal combustion engine by means of a heat transfer stream, in particular
Kühlwasserstromes, gekühlt, wobei dem Wärmeträgerstrom Abwärme des Verbrennungsmotors zugeführt wird. Die Abwärme des Verbrennungsmotors kann dabei unmittelbar im Verbrennungsmotor selbst, insbesondere innerhalb dessen Motorgehäuses, auf den Wärmeträgerstrom übertragen werden, und/oder dem vom Verbrennungsmotor erzeugten Abgasstrom entzogen werden und dem Cooling water flow, cooled, wherein the heat transfer medium waste heat of the engine is supplied. The waste heat of the internal combustion engine can be directly transferred to the heat transfer stream in the internal combustion engine itself, in particular within the engine housing, and / or be withdrawn from the exhaust gas flow generated by the internal combustion engine and the
Wärmeträgerstrom zugeführt werden, beispielsweise über einen Wärmetauscher im Abgasstrom. Die vom Wärmeträgerstrom aufgenommene Abwärme des Verbrennungsmotors wird dann einem Fernwärmenetz, Nahwärmenetz, Heat transfer stream are supplied, for example via a heat exchanger in the exhaust stream. The heat absorbed by the heat transfer heat of the engine is then a district heating network, local heating network,
Prozesswärmenetz oder einem anderen Wärmenutzungssystem zugeführt. Process heat network or another heat utilization system supplied.
Erfindungsgemäß ist nun zur optimalen Nutzung der Abwärme, die noch im Abgasstrom enthalten ist, ein Dampfkreislauf vorgesehen, in welchem ein According to the invention, a steam cycle is now provided for optimal utilization of the waste heat, which is still contained in the exhaust gas stream, in which a
Arbeitsmedium mittels einer Speisepumpe umgewälzt wird. Der Dampfkreislauf umfasst einen im Abgasstrom angeordneten Wärmetauscher, mittels welchem Abwärme des Abgasstromes zur teilweisen oder vollständigen Verdampfung des Arbeitsmediums in das Arbeitsmedium übertragen wird. Diesen ersten Working medium is circulated by means of a feed pump. The steam cycle includes a heat exchanger arranged in the exhaust gas flow, by means of which waste heat of the exhaust gas flow for the partial or complete evaporation of the Working medium is transferred to the working medium. This first
Wärmetauscher könnte man demnach auch als Verdampfer bezeichnen. Ferner umfasst der Dampfkreislauf einen Hubkolbenexpander, in welchem das Heat exchangers could therefore also be called evaporators. Furthermore, the steam cycle comprises a Hubkolbenexpander, in which the
Arbeitsmedium unter Verrichtung mechanischer Arbeit expandiert, sowie einen Kondensator, in welchem das Arbeitsmedium teilweise oder vollständig Working medium under mechanical work expands, and a condenser in which the working medium partially or completely
kondensiert. condensed.
Erfindungsgemäß ist der Hubkolbenexpander mechanisch an dem According to the reciprocating expander is mechanically on the
Verbrennungsmotor und/oder dem elektrischen Generator zum Antreiben desselben gekoppelt. Zusätzlich oder alternativ kann der Hubkolbenexpander auch an einen zweiten zusätzlichen elektrischen Generator gekoppelt sein. Combined combustion engine and / or the electric generator for driving the same. Additionally or alternatively, the Hubkolbenexpander can also be coupled to a second additional electrical generator.
Die Kopplung des Hubkolbenexpanders an den Verbrennungsmotor und/oder den elektrischen Generator, der vom Verbrennungsmotor angetrieben wird, ist vorteilhaft mittels einer lösbaren Kupplung hergestellt. Dies ermöglicht, dass bei Problemen im Dampfkreislauf beziehungsweise am Hubkolbenexpander die Kupplung einfach gelöst werden kann, sodass das Kraftwerk wie bisher ohne zusätzliche Abwärmenutzung weiterbetrieben werden kann. Demnach wird die Verfügbarkeit des Kraftwerks nicht eingeschränkt. Ferner ist es dadurch möglich, ohne Verfügbarkeitseinschränkungen die Wartungsintervalle des Dampfkreislaufes beziehungsweise des Hubkolbenexpanders unabhängig von den The coupling of the Hubkolbenexpanders to the internal combustion engine and / or the electric generator, which is driven by the internal combustion engine, is advantageously made by means of a releasable coupling. This allows that in case of problems in the steam cycle or the Hubkolbenexpander the clutch can be easily solved, so that the power plant can continue to operate as before without additional waste heat. Accordingly, the availability of the power plant is not limited. Furthermore, it is possible, without availability restrictions, the maintenance intervals of the steam cycle or the Hubkolbenexpanders regardless of the
Wartungsintervallen der übrigen Kraftwerkskomponenten auszuwählen. Select maintenance intervals of other power plant components.
Besonders günstig ist es, wenn der Hubkolbenexpander eine Kurbelwelle aufweist, die an einer Kurbelwelle des Verbrennungsmotors, insbesondere unmittelbar über die Kupplung, angeschlossen ist. It is particularly favorable if the reciprocating piston expander has a crankshaft which is connected to a crankshaft of the internal combustion engine, in particular directly via the clutch.
Der Verbrennungsmotor ist vorteilhaft als Gasmotor ausgeführt, wobei diesem dann über eine Gaszufuhr am Verbrennungsmediumeinlass ein Gas, insbesondere zusammen mit Luft, als Verbrennungsmedium zugeführt wird. Gemäß einer vorteilhaften Ausführungsform der Erfindung ist das Arbeitsmedium des Dampfkreislaufes Wasser oder ein Wassergemisch. Insbesondere bei der Ausführung des Verbrennungsmotors als Gasmotor führt dies zu dem Vorteil, dass sich das Arbeitsmedium bei den hohen Abgastemperaturen, welche ein solcher Gasmotor erzeugt, nicht zersetzt und andererseits bei einer Kondensation im Temperaturbereich 80° C bis 99° C bei Umgebungsdruck die aus dem Abgas entnommene Wärme, die dem Arbeitsmedium zugeführt wird, noch sehr gut für eine Kraftwärmekopplung auf üblichem Temperaturniveau verwendet werden kann. Hierzu ist gemäß einer ersten Ausführungsform der Wärmeträgerstrom, der zur Kühlung des Verbrennungsmotors genutzt wird, zugleich das Arbeitsmedium des Dampfkreislaufes und insbesondere zugleich das im Wärmenutzungssystem in einem geschlossenen Kreislauf oder offenen Strom geführte Medium. Alternativ wird die Kondensationswärme des Arbeitsmediums des Dampfkreislaufes dem Wärmeträgerstrom über einen Wärmetauscher, vorliegend als zweiter The internal combustion engine is advantageously designed as a gas engine, wherein this gas is then supplied via a gas supply at the combustion medium inlet, in particular together with air, as a combustion medium. According to an advantageous embodiment of the invention, the working medium of the steam cycle is water or a water mixture. In particular, in the embodiment of the internal combustion engine as a gas engine, this leads to the advantage that the working fluid at the high exhaust gas temperatures, which generates such a gas engine does not decompose and on the other hand at a condensation in the temperature range 80 ° C to 99 ° C at ambient pressure from the Exhaust gas removed heat, which is supplied to the working medium, can still be used very well for cogeneration at the usual temperature level. For this purpose, according to a first embodiment of the heat transfer stream, which is used for cooling of the internal combustion engine, at the same time the working medium of the steam cycle and in particular at the same time in the heat utilization system in a closed circuit or open current guided medium. Alternatively, the heat of condensation of the working medium of the steam cycle is the heat transfer stream via a heat exchanger, in this case as the second
Wärmetauscher bezeichnet, zugeführt, wobei der zweite Wärmetauscher den Kondensator beispielsweise teilweise oder vollständig ausbilden kann.  Designates heat exchanger, supplied, wherein the second heat exchanger may form the capacitor, for example, partially or completely.
Im Dampfkreislauf kann ein Arbeitsmediumvorratsbehälter vorgesehen sein, um Leckagen und/oder Volumenschwankungen des Arbeitsmediums auszugleichen. Gemäß einer Ausführungsform ist der Arbeitsmediumvorratsbehälter als vom Arbeitsmedium durchströmter Behälter ausgeführt, das heißt mit einem In the steam cycle, a working medium reservoir may be provided to compensate for leaks and / or volume fluctuations of the working medium. According to one embodiment, the working medium reservoir is designed as a container through which the working medium flows, that is, with a
Arbeitsmediumeinlass, in welchen insbesondere sämtliches im Dampfkreislauf mittels der Speisepumpe umgewälztes Arbeitsmedium permanent einströmt, und mit einem Arbeitsmediumauslass, über welchen dieses Arbeitsmedium wieder aus dem Arbeitsmediumvorratsbehälter ausströmt. Working medium inlet, in which in particular all permanently circulated in the steam circuit circulated by the feed pump working fluid, and with a Arbeitsmediumauslass through which this working fluid flows out of the working fluid reservoir again.
Der Verbrennungsmotor und der Hubkolbenexpander arbeiten vorteilhaft auf- demselben Drehzahlniveau, insbesondere laufen die Antriebswellen The internal combustion engine and the reciprocating piston expander advantageously operate at the same speed level, in particular the drive shafts run
beziehungsweise Kurbelwellen beider Maschinen mit im Wesentlichen oder genau derselben Drehzahl um. Beide Maschinen, die beide vorteilhaft als Hubkolbenmaschinen ausgeführt sind, treiben gemäß einer Ausführungsform gemeinsam ein und denselben Generator oder bei einer Vielzahl von or crankshafts of both machines with substantially or precisely the same speed. Both machines, both of which are advantageously designed as reciprocating engines, according to one embodiment jointly drive one and the same generator or at a plurality of
vorgesehenen Generatoren dieselben Generatoren an. provided generators to the same generators.
Der Hubkolbenexpander kann beispielsweise als Zweizylinder-, Dreizylinder-, Vierzylinder-, Fünfzylinder- oder Sechszylindermaschine ausgeführt sein. The Hubkolbenexpander can be designed for example as a two-cylinder, three-cylinder, four-cylinder, five-cylinder or six-cylinder engine.
Entsprechendes gilt für den Verbrennungsmotor. Wenn der Verbrennungsmotor als Gasmotor ausgeführt ist, ist Biogas, The same applies to the internal combustion engine. If the internal combustion engine is designed as a gas engine, biogas,
insbesondere Erdgas, Deponiegas, Holzvergasungsgas oder Klärgas ein geeignetes Verbrennungsmedium. Andere Verbrennungsmedien sind jedoch möglich. in particular natural gas, landfill gas, wood gasification gas or sewage gas a suitable combustion medium. Other combustion media are possible, however.
Der gesamte Dampfkreislauf und dessen Einbindung in das Kraftwerk kann durch eine gemeinsame Systemsteuerung gesteuert und/oder überwacht werden. The entire steam cycle and its integration into the power plant can be controlled and / or monitored by a common system control.
Hierdurch ist ein robustes wartungsarmes System mit geschlossenem Kreislauf, selbstregulierendem Steuersystem und anpassbar an die verschiedenen  This provides a robust, low-maintenance, closed-circuit system, self-regulating control system and adaptable to the various types
Verbrennungsmotoren erreichbar. Die Erfindung soll nachfolgend anhand eines Ausführungsbeispiels exemplarisch beschrieben werden. Internal combustion engines reachable. The invention will be described below by way of example with reference to an embodiment.
In der Figur 1 ist ein Verbrennungsmotor 1, hier in Form eines Gasmotors, dargestellt, umfassend einen Verbrennungsmediumeinlass 2 und einen 1 shows an internal combustion engine 1, here in the form of a gas engine, comprising a combustion medium inlet 2 and a
Abgasauslass 3. Exhaust outlet 3.
Über eine am Verbrennungsmediumeinlass 2 angeschlossene Via a combustion medium inlet 2 connected
Verbrennungsmediumzufuhr 19 wird zum einen Luft aus einem Lufteinlass 4 und zum anderen Gas aus einem Gasvorrat 5 zur gemeinsamen Verbrennung im Verbrennungsmotor 1 zugeführt. Über den Abgasauslass 3 strömt heißes Abgas zunächst über einen Wärmetauscher 6, mittels welchem ein Wärmeträgerstrom 7, insbesondere Kühlwasserstrom, aufgeheizt wird, und anschließend einen Combustion medium supply 19 is supplied to the one air from an air inlet 4 and the other gas from a gas supply 5 for common combustion in the internal combustion engine 1. Hot exhaust gas flows via the exhaust gas outlet 3 first via a heat exchanger 6, by means of which a heat transfer stream 7, in particular cooling water flow, is heated, and then a
Wärmetauscher 8, der als Verdampfer für das Arbeitsmedium eines Heat exchanger 8, which serves as an evaporator for the working medium of a
Dampfkreislaufes 9 arbeitet. Der Abgasstrom selbst ist vorliegend mit 10 bezeichnet. Steam cycle 9 works. The exhaust gas flow itself is designated 10 in the present case.
Das Arbeitsmedium des Dampfkreislaufes 9 wird mittels einer Speisepumpe 11, die von dem Hubkolbenexpander 12 angetrieben wird, durch den Wärmetauscher 8 gepumpt, dort verdampft und strömt dann in den Hubkolbenexpander 12, wo es unter Verrichtung mechanischer Arbeit expandiert. Mittels dieser mechanischen Arbeit wird der Verbrennungsmotor 1 beziehungsweise dessen Kurbelwelle angetrieben, welcher/welche wiederum unter Ausnutzung der im The working medium of the steam cycle 9 is pumped by the heat exchanger 8 by means of a feed pump 11, which is driven by the Hubkolbenexpander 12, where it evaporates and then flows into the Hubkolbenexpander 12, where it expands while performing mechanical work. By means of this mechanical work, the internal combustion engine 1 or its crankshaft is driven, which in turn utilizing the in
Verbrennungsmotor 1 entrichteten mechanischen Arbeit den Generator 13 antreibt. Der Generator 13 speist den von ihm erzeugten elektrischen Strom in ein Stromnetz 14. Combustion engine 1 paid mechanical work the generator 13 drives. The generator 13 feeds the electric power generated by it into a power grid 14.
Das im Hubkolbenexpander 12 expandierte Arbeitsmedium strömt durch einen Kondensator 15, in welchem es kondensiert wird, und weiter durch den The expanded in Hubkolbenexpander 12 working fluid flows through a condenser 15 in which it is condensed, and further through the
Arbeitsmediumvorratsbehälter 16 zurück in die Speisepumpe 11. Working fluid reservoir 16 back into the feed pump 11th
Der Kondensator 15 ist zugleich ein zweiter Wärmetauscher im Wärmeträgerstrom 7 und überträgt die Kondensationswärme auf den Wärmeträgerstrom 7, um diesen zu erwärmen, bevor der Wärmeträgerstrom 7 einem The condenser 15 is at the same time a second heat exchanger in the heat transfer stream 7 and transmits the heat of condensation to the heat transfer stream 7 in order to heat it, before the heat transfer stream 7 a
Wärmenutzungssystem 17, beispielsweise Nahwärmenetz, Fernwärmenetz oder Prozesswärmenetz, zugeführt wird. Der Wärmeträgerstrom 7 kann, wie Heat utilization system 17, for example local heating network, district heating network or process heat network, is supplied. The heat transfer stream 7 can, as
dargestellt, als offener Strom oder, wie durch die gestrichelten Linien dargestellt ist, als geschlossener Kreislauf geführt werden. represented as open current or, as shown by the dashed lines, are guided as a closed circuit.
Selbstverständlich könnte die Reihenfolge der Wärmetauscher 6, 15 im Of course, the order of the heat exchanger 6, 15 in
Wärmeträgerstrom 7 umgetauscht werden oder es könnten weitere Wärmetauscher im Kraftwerk zum Eintrag von Wärme in den Wärmeträgerstrom 7 vorgesehen sein, beispielsweise in einer Abgasrückführung des Heat transfer stream 7 are exchanged or it could be more Heat exchangers may be provided in the power plant for introducing heat into the heat transfer stream 7, for example in an exhaust gas recirculation of the
Verbrennungsmotors 1 (nicht dargestellt). Internal combustion engine 1 (not shown).
Vorliegend ist der Hubkolbenexpander 12 über eine lösbare Kupplung 18 am Verbrennungsmotor 1 angeschlossen, wobei die Kupplung 18 gemäß einer ersten Ausführungsform nur im Stillstand lösbar beziehungsweise schließbar ist und gemäß einer alternativen Ausführungsform auch im Betrieb des In the present case, the reciprocating piston expander 12 is connected via a releasable coupling 18 to the internal combustion engine 1, wherein the clutch 18 according to a first embodiment is only solvable or closable at standstill and according to an alternative embodiment in the operation of the
Verbrennungsmotors 1 und/oder des Hubkolbenexpanders 12. Internal combustion engine 1 and / or the Hubkolbenexpanders 12th
Abweichend von der dargestellten Ausführungsform könnte die Speisepumpe 11 auch vom Verbrennungsmotor 1 angetrieben werden oder von einem zusätzlichen Antrieb, beispielsweise einem Elektromotor. Deviating from the illustrated embodiment, the feed pump 11 could also be driven by the internal combustion engine 1 or by an additional drive, such as an electric motor.

Claims

Patentansprüche claims
1. Stationäres Kraftwerk, insbesondere Gaskraftwerk, zur Stromerzeugung;1. Stationary power plant, in particular gas power plant, for power generation;
1.1 mit einem Verbrennungsmotor (1), umfassend einen 1.1 with an internal combustion engine (1), comprising a
Verbrennungsmediumeinlass (2) und einen Abgasauslass (3), wobei über den Abgasauslass (3) ein Abgasstrom (10) des Verbrennungsmotors (1) abgeführt wird;  Combustion medium inlet (2) and an exhaust gas outlet (3), wherein via the exhaust gas outlet (3) an exhaust gas stream (10) of the internal combustion engine (1) is discharged;
1.2 mit einem elektrischen Generator (13), der vom Verbrennungsmotor (1) zur Stromerzeugung angetrieben wird, und der mit einem Stromnetz (14) gekoppelt oder koppelbar ist, um den erzeugten Strom in dieses  1.2 with an electric generator (13), which is driven by the internal combustion engine (1) to generate electricity, and which is coupled to a power grid (14) or coupled to the generated power in this
einzuspeisen;  feed;
1.3 mit einer Verbrennungsmediumzufuhr (19), die am  1.3 with a combustion medium supply (19), the
Verbrennungsmediumeinlass (2) angeschlossen ist; wobei  Combustion medium inlet (2) is connected; in which
1.4 ein Dampfkreislauf (9), in welchem ein Arbeitsmedium mittels einer  1.4 a steam cycle (9), in which a working medium by means of a
Speisepumpe (11) umgewälzt wird, vorgesehen ist, umfassend einen im Abgasstrom (10) angeordneten Wärmetauscher (8), mittels welchem  Feed pump (11) is circulated, is provided, comprising a in the exhaust stream (10) arranged heat exchanger (8), by means of which
Abwärme des Abgasstromes (10) zur teilweisen oder vollständigen  Waste heat of the exhaust stream (10) for partial or complete
Verdampfung des Arbeitsmediums in das Arbeitsmedium übertragen wird, ferner umfassend einen Kondensator (15), in welchem das Arbeitsmedium teilweise oder vollständig kondensiert,  Evaporation of the working medium is transferred to the working medium, further comprising a condenser (15) in which the working medium partially or completely condensed,
dadurch gekennzeichnet, dass  characterized in that
1.5 im Dampfkreislauf (9) ein Hubkolbenexpander (12) vorgesehen ist, in  1.5 in the steam circuit (9) a Hubkolbenexpander (12) is provided, in
welchem das Arbeitsmedium unter Verrichtung mechanischer Arbeit expandiert, und  which expands the working medium while performing mechanical work, and
1.6 der Hubkolbenexpander (12) mittels einer lösbaren Kupplung (18)  1.6 the Hubkolbenexpander (12) by means of a releasable coupling (18)
mechanisch an dem Verbrennungsmotor (1) und/oder dem elektrischen Generator (13) angeschlossen ist.  is mechanically connected to the internal combustion engine (1) and / or the electric generator (13).
2. Stationäres Kraftwerk gemäß Anspruch 1, dadurch gekennzeichnet, dass das Arbeitsmedium Wasser oder ein Wassergemisch ist. 2. Stationary power plant according to claim 1, characterized in that the working medium is water or a water mixture.
3. Stationäres Kraftwerk gemäß einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass der Hubkolbenexpander (12) eine Kurbelwelle aufweist, die an einer Kurbelwelle des Verbrennungsmotors (1), 3. Stationary power plant according to one of claims 1 or 2, characterized in that the Hubkolbenexpander (12) has a crankshaft, which on a crankshaft of the internal combustion engine (1),
insbesondere unmittelbar, angeschlossen ist.  in particular directly, is connected.
4. Stationäres Kraftwerk gemäß einem der Ansprüche 1 bis 3, dadurch 4. Stationary power plant according to one of claims 1 to 3, characterized
gekennzeichnet, dass der Verbrennungsmotor (1) als Gasmotor ausgeführt ist und eine Gaszufuhr am Verbrennungsmediumeinlass (2) angeschlossen ist, um ein Gas, insbesondere zusammen mit Luft, dem Gasmotor als Verbrennungsmedium zuzuführen.  in that the internal combustion engine (1) is designed as a gas engine and a gas supply is connected to the combustion medium inlet (2) in order to supply a gas, in particular together with air, to the gas engine as the combustion medium.
5. Stationäres Kraftwerk gemäß einem der Ansprüche 1 bis 4, dadurch 5. Stationary power plant according to one of claims 1 to 4, characterized
gekennzeichnet, dass eine Kraft-Wärme-Kopplung vorgesehen ist, umfassend einen Wärmeträgerstrom (7), insbesondere Kühlwasserstrom, mittels welchem der Verbrennungsmotor (1) gekühlt wird, und der einem Nahwärmenetz, Fernwärmenetz, Prozesswärmenetz oder anderen  characterized in that a combined heat and power is provided, comprising a heat transfer stream (7), in particular cooling water flow, by means of which the internal combustion engine (1) is cooled, and a local heating network, district heating network, process heat network or other
Wärmenutzungssystem (17) zugeführt wird, wobei der Wärmeträger des Wärmeträgerstromes (7) zugleich das Arbeitsmedium des Dampfkreislaufes (9) ist.  Heat utilization system (17) is supplied, wherein the heat transfer medium of the heat transfer stream (7) is also the working medium of the steam cycle (9).
6. Stationäres Kraftwerk gemäß einem der Ansprüche 1 bis 4, dadurch 6. Stationary power plant according to one of claims 1 to 4, characterized
gekennzeichnet, dass eine Kraft-Wärme-Kopplung vorgesehen ist, umfassend einen Wärmeträgerstrom (7), insbesondere Kühlwasserstrom, mittels welchem der Verbrennungsmotor (1) gekühlt wird, und der einem Nahwärmenetz, Fernwärmenetz, Prozesswärmenetz oder anderen  characterized in that a combined heat and power is provided, comprising a heat transfer stream (7), in particular cooling water flow, by means of which the internal combustion engine (1) is cooled, and a local heating network, district heating network, process heat network or other
Wärmenutzungssystem (17) zugeführt wird, wobei im Wärmeträgerstrom (7) ein zweiter Wärmetauscher vorgesehen ist, der mit der  Heat utilization system (17) is supplied, wherein in the heat transfer stream (7), a second heat exchanger is provided which with the
Kondensationswärme des Arbeitsmediums beaufschlagt ist, um den  Condensation heat of the working medium is applied to the
Wärmeträgerstrom (7) aufzuheizen. Heating heat transfer stream (7).
7. Stationäres Kraftwerk gemäß Anspruch 6, dadurch gekennzeichnet, dass der zweite Wärmetauscher den Kondensator (15) teilweise oder vollständig ausbildet. 7. Stationary power plant according to claim 6, characterized in that the second heat exchanger forms the capacitor (15) partially or completely.
8. Stationäres Kraftwerk gemäß einem der Ansprüche 1 bis 7, dadurch 8. Stationary power plant according to one of claims 1 to 7, characterized
gekennzeichnet, dass im Dampfkreislauf (9) ein  characterized in that in the steam cycle (9) a
Arbeitsmediumvorratsbehälter (16) vorgesehen ist, der als vom  Working medium reservoir (16) is provided as the
Arbeitsmedium durchströmter Behälter ausgeführt ist.  Working medium through-flow container is executed.
9. Stationäres Kraftwerk gemäß einem der Ansprüche 4 bis 8, dadurch 9. Stationary power plant according to one of claims 4 to 8, characterized
gekennzeichnet, dass das Verbrennungsmedium ein Biogas, insbesondere Erdgas, Deponiegas, Holzvergasungsgas oder Klärgas ist.  in that the combustion medium is a biogas, in particular natural gas, landfill gas, wood gasification gas or sewage gas.
EP12702762.1A 2011-02-10 2012-01-31 Stationary power plant, in particular a gas power plant, for generating electricity Withdrawn EP2606214A1 (en)

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