EP2609300A2 - Apparatus and method for producing superheated steam - Google Patents

Apparatus and method for producing superheated steam

Info

Publication number
EP2609300A2
EP2609300A2 EP11766961.4A EP11766961A EP2609300A2 EP 2609300 A2 EP2609300 A2 EP 2609300A2 EP 11766961 A EP11766961 A EP 11766961A EP 2609300 A2 EP2609300 A2 EP 2609300A2
Authority
EP
European Patent Office
Prior art keywords
water
steam
heat
reheater
heat transfer
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Withdrawn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
EP11766961.4A
Other languages
German (de)
French (fr)
Inventor
Arno Czimczik
Guenther Beckesch
Waldemar Hoffmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2609300A2 publication Critical patent/EP2609300A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/30—Solar heat collectors using working fluids with means for exchanging heat between two or more working fluids
    • 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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating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
    • 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
    • F01K7/223—Inter-stage moisture separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F03G6/003—Devices for producing mechanical power from solar energy having a Rankine cycle
    • F03G6/005—Binary cycle plants where the fluid from the solar collector heats the working fluid via a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/006—Methods of steam generation characterised by form of heating method using solar heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/26—Steam-separating arrangements
    • F22B37/266—Separator reheaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
    • F22G3/004—Steam tubes with steam flowing in opposite directions in one pipe, e.g. Field tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S90/00—Solar heat systems not otherwise provided for
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
    • 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]

Definitions

  • the invention relates to a device for generating superheated steam by means of solar energy and a method for generating superheated steam using the device. In addition, a use of the superheated steam is indicated.
  • solar thermal power plants as an alternative to conventional power generation is a way to defuse the existing carbon dioxide problem.
  • solar energy solar energy
  • ie electromagnetic radiation ⁇ ment of the sun converted into electrical energy.
  • a solar thermal power plant with indirect evaporation has a steam generator.
  • the steam generator includes a heat transfer circuit (primary circuit) with a heat ⁇ carrier medium and a water / steam circuit (secondarily circuit) with water.
  • the water and the water vapor act as working fluid.
  • the heat transfer medium of the heat transfer circuit absorbs the solar energy in the form of heat (thermal energy). That would ⁇ melic medium is heated.
  • the heat absorbed by the heat transfer medium is removed with the help of feedwater Preheater, evaporator and superheater transferred to the water or to the water vapor of the water / steam cycle This superheated steam is generated.
  • the stored in superheated steam thermal energy is used to Ge ⁇ win the electrical energy. It comes to the conversion of thermal energy into electrical energy.
  • the conversion of the thermal energy of the superheated steam into electrical energy takes place in the "conventional part of a solar thermal power plant, for example by means of a steam turbine, via which a generator is driven.
  • Object of the present invention is to show how efficiently superheated steam with low water content can be obtained with the help of solar energy, which can be used for the generation of electrical energy.
  • a device for generating superheated steam by solar energy comprising at least one heat transfer circuit with a heat transfer medium for receiving the solar energy in the form of heat and at least one water / steam cycle with water and / or steam for forming the superheated steam, wherein in the water / steam cycle the water and / or steam can flow in a flow direction, the heat transfer circuit and the water / water vapor Circuit for generating the superheated steam are thermally coupled to one another via at least one heat exchanger of at least one reheater , in which water / steam circuit in the flow direction before the heat exchanger at least one water separator for separating water and water vapor from each other, so that in the heat exchanger essentially only water vapor can pass, and the heat exchanger and the water separator are arranged in a common reheater pressure vessel.
  • a method for generating superheated steam using the device with the following process steps is given: a) providing the heat transfer medium, b) converting solar energy into heat of the heat transfer medium, c) providing a What ⁇ d) transfer of water from the water / water vapor mixture by means of the water separator and d) transfer of the heat of the heat transfer medium to the remaining water vapor of Was ⁇ water / steam mixture, wherein the superheated steam is generated.
  • a use of the superheated steam generated by the described method for obtaining electrical energy is specified, wherein with the aid of superheated steam, a steam turbine is driven.
  • the separated water is preferably supplied to the What ⁇ ser / steam cycle.
  • ⁇ one or more pumps are used.
  • the reheater With the reheater, the efficiency is increased, with which a downstream steam turbine is operated. With the reheater thermal energy is introduced into the water vapor of the water / steam cycle.
  • To introduce the thermal energy of the reheater is solar thermal operated:
  • the reheater has a reheater water pipe for receiving the water vapor.
  • For intermediate overheating hot with the aid of solar energy (electromagnetic radiation, which is sent from the sun ⁇ and meets the earth's surface) heated heat transfer medium is passed to the reheater water pipe.
  • Reheater water pipe and heat transfer medium are thermally coupled together. By passing the heat transfer medium, the water vapor in the reheater water pipe is overheated.
  • the reheater In order to effect the flow of the heat transfer medium to the reheater water pipe, for example, a heat transfer pump or a plurality of heat transfer pumps are used.
  • the heat transfer medium is pumped past the water pipe.
  • the reheater has a verti ⁇ cal structure, so that the hot heat transfer medium from "top to bottom” through the heat exchanger can flow .. With the vertical structure of the reheater beyond a natural movement of the water vapor in the ⁇ overheater water pipe exploited from "bottom to top".
  • the heat exchanger is arranged vertically above the water separator.
  • the separated water can be removed in a simple manner and fed to the water / steam circuit for further use.
  • the heat exchanger has at least one reheater water pipe for guiding the water vapor of the water / steam cycle.
  • the reheater water pipe has at least one tube shape selected from the group of straight shape, U-shape and helix shape.
  • the U-shape and the helical shape is provided for an efficient heat exchange.
  • the heat transfer medium flows in reheater heat transfer tubes.
  • the steam of the water steam cycle flows past the outer walls Eisenüb ⁇ heaters heat transfer tubes. This leads to heat transfer.
  • the heat exchanger has at least one reheater heat transfer tube for guiding the heat transfer medium of the heat transfer circuit.
  • the reheater heat carrier tube has at least one tube shape selected from the group of straight, U-shaped and helical shapes.
  • the U-shape and the helix shape ensure efficient heat exchange.
  • reheater water pipe bundle For a given pipe volume is a (total) pipe surface over which takes place the thermal coupling of the heat transfer medium and the water vapor is higher at an intermediate ⁇ superheater water tube bundle as compared to a single reheater water pipe.
  • the heat transfer medium can be routed channeled to the reheater water pipe or de: reheater water pipes over.
  • a plurality of Umleitblechen for changing the flow direction of the Wär meristo medium available.
  • a plurality of reheaters is present.
  • the plurality of steam generators are connected in parallel to a larger reheater unit.
  • FIG. 1 shows a first example of a device for generating superheated steam in a lateral view.
  • FIG. 2 shows a second example of a device for generating superheated steam in a lateral view.
  • the starting point is a device 1 for generating superheated steam 30 by means of solar energy.
  • the device comprises the following components: A heat transfer circuit 2 with a heat transfer medium 20 for receiving the solar energy in the form of heat and a water / steam circuit 3 with water and / or water vapor to form the superheated steam.
  • the water and / or the steam can flow in a flow direction 33 in the water / steam cycle.
  • the heat transfer circuit and the water / steam circuit are thermally coupled together to generate the superheated steam over at least one heat exchanger at least one reheater 4.
  • reheater hot heat transfer medium 22 is introduced.
  • Cold heat transfer medium 23 leaves the furnishedtau ⁇ shear of reheater and is again to receive solar energy available.
  • a water separator 5 for separating water and water vapor from each other is arranged in the flow direction in front of the heat exchanger, so that essentially only water vapor can enter the heat exchanger.
  • the heat exchanger and the water separator are arranged in a common reheater pressure vessel.
  • the water separated in the water separator 50 is returned to the water / steam cycle.
  • Example 2 The construction of the apparatus is similar to Example 1. Instead of U-tubes, reheater water pipes with helical shape are installed in the bundle. To reduce the flow area, the bundle is divided into two parts. The operating principle is comparable to that of the U-tube arrangement.
  • reheater water pipes having a U-shape and intermediate superheater ⁇ water pipes are used with helical shape.
  • examples include the leadership of the liquid heat transfer medium in the tube interior. It is used reheater heat transfer tubes with U-shape and / or reheater heat transfer tubes with helical shape. The water vapor of the water / steam cycle can flow past the outer surfaces of the reheater heat transfer tubes, resulting in the exchange of energy.
  • the device described is used to generate superheated steam by means of solar energy.
  • the following process steps are carried out: a) providing the heat transfer medium, b) converting solar energy into heat of the heat transfer medium, c) providing a water / water vapor mixture of the water / steam cycle, d) separating water from Water / steam mixture with the aid of the water separator and d) transferring the heat of the heat transfer medium to the remaining water vapor of Was ⁇ water / steam mixture, wherein the superheated steam is generated.
  • the generated, superheated steam is forwarded to a steam turbine for the production of electricity.

Abstract

The invention relates to an apparatus for producing superheated steam by means of solar energy. The apparatus has the following features: at least one heat-transfer medium circuit with a heat transfer medium for absorbing the solar energy in the form of heat and at least one water/steam circuit with water and/or steam for forming the superheated steam. In this arrangement, the water and/or the steam may flow in one direction of flow in the water/steam circuit. For producing the superheated steam, the heat-transfer medium circuit and the water/steam circuit are thermally coupled to each other by means of at least one heat exchanger of at least one reheater. In the water/steam circuit, at least one water separator is arranged upstream of the heat exchanger in the direction of flow for separating water and steam from each other, so that substantially only steam can enter the heat exchanger. The heat exchanger and the water separator are arranged in a common reheater pressure vessel.

Description

Beschreibung description
Vorrichtung und Verfahren zum Erzeugen von überhitztem Wasserdampf mittels solarthermisch betriebenem Zwischenüberhitzer sowie Verwendung des überhitzten Wasserdampfs Apparatus and method for generating superheated steam by means of solar thermal reheater and use of the superheated steam
Die Erfindung betrifft eine Vorrichtung zur Erzeugung von überhitztem Wasserdampf mittels Solar-Energie und ein Verfahren zum Erzeugen von überhitztem Wasserdampf unter Verwendung der Vorrichtung. Darüber hinaus wird eine Verwendung des überhitzten Wasserdampfs angegeben. The invention relates to a device for generating superheated steam by means of solar energy and a method for generating superheated steam using the device. In addition, a use of the superheated steam is indicated.
Der Einsatz von solarthermischen Kraftwerken als Alternative zur herkömmlichen Strom-Erzeugung ist ein Weg zur Entschärfung der bestehenden Kohlendioxid-Problematik. Dabei wird Solar-Energie (Sonnen-Energie), d.h. elektromagnetische Strah¬ lung der Sonne, in elektrische Energie umgewandelt. The use of solar thermal power plants as an alternative to conventional power generation is a way to defuse the existing carbon dioxide problem. In this case, solar energy (solar energy), ie electromagnetic radiation ¬ ment of the sun, converted into electrical energy.
Momentan ist ein Großteil der solarthermischen Kraftwerke als solarthermische Kraftwerke mit indirekter Verdampfung ausge¬ führt. Dabei dienen Solar-Felder mit Parabolrinnen- Kollektoren als Empfänger der Solar-Energie. Alternativ zu den Parabolrinnen-Kollektoren finden Fresnel-Kollektoren als Empfänger der Solar-Energie Anwendung. Anstelle der Solar- Felder kommen auch Solar-Türme zum Einsatz. Currently, a majority of the solar thermal power plants as the solar thermal power plants with indirect evaporation out ¬ leads. Solar fields with parabolic trough collectors serve as receivers of the solar energy. As an alternative to the parabolic trough collectors, Fresnel collectors are used as receivers of solar energy. Instead of the solar fields, solar towers are also used.
Ein solarthermisches Kraftwerk mit indirekter Verdampfung weist einen Dampferzeuger auf. Der Dampferzeuger umfasst einen Wärmeträger-Kreislauf (Primär-Kreislauf ) mit einem Wärme¬ träger-Medium und einen Wasser/Wasserdampf-Kreislauf (Sekun- där-Kreislauf ) mit Wasser. Das Wasser und der Wasserdampf fungieren als Arbeitsfluid. A solar thermal power plant with indirect evaporation has a steam generator. The steam generator includes a heat transfer circuit (primary circuit) with a heat ¬ carrier medium and a water / steam circuit (secondarily circuit) with water. The water and the water vapor act as working fluid.
Das Wärmeträger-Medium des Wärmeträger-Kreislaufs, beispiels¬ weise ein Thermo-Öl oder eine Salz-Schmelze, nimmt die Solar- Energie in Form von Wärme (thermische Energie) auf. Das Wär¬ meträger-Medium wird erwärmt. Die durch das Wärmeträger- Medium aufgenommene Wärme wird mit Hilfe von Speisewasser- Vorwärmer, Verdampfer und Überhitzer an das Wasser bzw. an den Wasserdampf des Wasser/Wasserdampf-Kreislaufs übertragen Dabei wird überhitzter Wasserdampf erzeugt. Die im überhitzten Wasserdampf gespeicherte thermische Energie wird zur Ge¬ winnung der elektrischen Energie genutzt. Es kommt zur Umwandlung von thermischer Energie in elektrische Energie. The heat transfer medium of the heat transfer circuit, for example ¬ a thermal oil or a salt melt, absorbs the solar energy in the form of heat (thermal energy). That would ¬ meträger medium is heated. The heat absorbed by the heat transfer medium is removed with the help of feedwater Preheater, evaporator and superheater transferred to the water or to the water vapor of the water / steam cycle This superheated steam is generated. The stored in superheated steam thermal energy is used to Ge ¬ win the electrical energy. It comes to the conversion of thermal energy into electrical energy.
Die Umwandlung der thermischen Energie des überhitzten Wasserdampfs in elektrische Energie erfolgt im „konventionellen Teil eines solarthermischen Kraftwerks, beispielsweise mit Hilfe einer Dampfturbine, über die ein Generator angetrieben wird . The conversion of the thermal energy of the superheated steam into electrical energy takes place in the "conventional part of a solar thermal power plant, for example by means of a steam turbine, via which a generator is driven.
Zur optimalen Ausnutzung des Turbinenpotentials wird der Was¬ serdampf nach der Entspannung in einer Hochdruckturbine noch einmal überhitzt. Dies wird mit Hilfe eines Zwischenüberhit¬ zers durchgeführt. Nach der Überhitzung wird der Wasserdampf in einer Niederdruckturbine wieder entspannt. Dabei ist nicht ausgeschlossen, dass nach der ersten Entspannung der Wasserdampf geringe Anteile an flüssigem Wasser enthält. Dieses Wasser/Wasserdampf-Gemisch verursacht unerwünschte Beläge (Salzflecken) der Heizfläche und Erosion in der Turbine durch Tropfenschlag an den Eintrittsschaufeln der Dampfturbine. For optimal utilization of the turbine is the potential ¬ What serdampf overheated again after relaxation in a high pressure turbine. This is done with the help of a Zwischenüberhit ¬ zers. After overheating, the water vapor is released again in a low-pressure turbine. It is not excluded that after the first relaxation of the steam contains small amounts of liquid water. This water / water vapor mixture causes undesirable deposits (salt spots) of the heating surface and erosion in the turbine by drop impact on the inlet blades of the steam turbine.
Aufgabe der vorliegenden Erfindung ist es, aufzuzeigen, wie mit Hilfe von Solar-Energie effizient überhitzter Wasserdampf mit geringem Wasseranteil gewonnen werden kann, der für die Erzeugung von elektrischer Energie verwendet werden kann. Object of the present invention is to show how efficiently superheated steam with low water content can be obtained with the help of solar energy, which can be used for the generation of electrical energy.
Zur Lösung der Aufgabe wird eine Vorrichtung zur Erzeugung von überhitztem Wasserdampf mittels Solar-Energie angegeben, aufweisend mindestens einen Wärmeträger-Kreislauf mit einem Wärmeträger-Medium zur Aufnahme der Solar-Energie in Form von Wärme und mindestens einen Wasser/Wasserdampf-Kreislauf mit Wasser und/oder Wasserdampf zur Bildung des überhitzten Wasserdampfs, wobei im Wasser/Wasserdampf-Kreislauf das Wasser und/oder der Wasserdampf in einer Strömungsrichtung strömen kann, der Wärmeträger-Kreislauf und der Wasser/Wasserdampf- Kreislauf zur Erzeugung des überhitzten Wasserdampfs über mindestens einen Wärmetauscher mindestens eines Zwischenüberhitzers thermisch miteinander gekoppelt sind, im Was¬ ser/Wasserdampf-Kreislauf in der Strömungsrichtung vor dem Wärmetauscher mindestens ein Wasserabscheider zum Trennen von Wasser und Wasserdampf voneinander angeordnet ist, so dass in den Wärmetauscher im Wesentlichen nur Wasserdampf gelangen kann, und der Wärmetauscher und der Wasserabscheider in einem gemeinsamen Zwischenüberhitzer-Druckbehälter angeordnet sind. To solve the problem, a device for generating superheated steam by solar energy is specified, comprising at least one heat transfer circuit with a heat transfer medium for receiving the solar energy in the form of heat and at least one water / steam cycle with water and / or steam for forming the superheated steam, wherein in the water / steam cycle the water and / or steam can flow in a flow direction, the heat transfer circuit and the water / water vapor Circuit for generating the superheated steam are thermally coupled to one another via at least one heat exchanger of at least one reheater , in which water / steam circuit in the flow direction before the heat exchanger at least one water separator for separating water and water vapor from each other, so that in the heat exchanger essentially only water vapor can pass, and the heat exchanger and the water separator are arranged in a common reheater pressure vessel.
Zur Lösung der Aufgabe wird auch ein Verfahren zum Erzeugen von überhitztem Wasserdampf unter Verwendung der Vorrichtung mit folgenden Verfahrensschritten angegeben: a) Bereitstellen des Wärmeträger-Mediums, b) Umwandeln von Solar-Energie in Wärme des Wärmeträger-Mediums, c) Bereitstellen eines Was¬ ser/Wasserdampfgemisches des Wasser/Wasserdampf-Kreislaufs, d) Abtrennen von Wasser vom Wasser/Wasserdampf-Gemisch mit Hilfe des Wasserabscheiders und d) Übertragen der Wärme des Wärmeträger-Mediums auf den verbliebenen Wasserdampf des Was¬ ser/Wasserdampf-Gemisches, wobei der überhitzte Wasserdampf erzeugt wird. To achieve the object, a method for generating superheated steam using the device with the following process steps is given: a) providing the heat transfer medium, b) converting solar energy into heat of the heat transfer medium, c) providing a What ¬ d) transfer of water from the water / water vapor mixture by means of the water separator and d) transfer of the heat of the heat transfer medium to the remaining water vapor of Was ¬ water / steam mixture, wherein the superheated steam is generated.
Gemäß einem weiteren Aspekt der Erfindung wird eine Verwendung des mit dem beschriebenen Verfahren erzeugten überhitzten Wasserdampfs zur Gewinnung von elektrischer Energie angegeben, wobei mit Hilfe des überhitzten Wasserdampfs eine Dampfturbine angetrieben wird. According to a further aspect of the invention, a use of the superheated steam generated by the described method for obtaining electrical energy is specified, wherein with the aid of superheated steam, a steam turbine is driven.
Üblicherweise werden zwischen dem Wasserabscheider und dem Wärmetauscher Verbindungsrohre eingesetzt, durch die der Sattdampf vom Wasserabscheider in den Wärmetauscher gleitet wird. Dabei kommt es auch bei einer sehr geringen Abkühlung zur Kondensation (Bildung von flüssigem Wasser) des Sattdampfs. Im Gegensatz dazu werden gemäß der vorliegenden Erfindung keine Verbindungsrohre zwischen Wasserabscheider und Wärmetauscher des Zwischenüberhitzers verwendet. Der Wasser¬ abscheider und der Wärmetauscher werden in einem einzigen Behälter angeordnet, so dass der Sattdampf, der durch das Was- serabscheiden erhalten wird, direkt in den Wärmetauscher des Zwischenüberhitzers gelangt. Dazu sind der Wasserabscheider und der Wärmetauscher vorzugsweise unmittelbar aneinander an- geordnet . Usually connecting pipes are used between the water and the heat exchanger through which the saturated steam from the water is slid into the heat exchanger. It also comes with a very low cooling to condensation (formation of liquid water) of the saturated steam. In contrast, according to the present invention, no connecting pipes are used between the water separator and the reheater heat exchanger. The water ¬ separator and the heat exchanger are disposed in a single container so that the saturated steam by the water is obtained directly into the heat exchanger of the reheater. For this purpose, the water separator and the heat exchanger are preferably arranged directly adjacent to one another.
Das abgetrennte Wasser wird vorzugsweise wieder dem Was¬ ser/Wasserdampf-Kreislauf zugeführt. Dazu werden beispiels¬ weise eine oder mehrere Pumpen eingesetzt. The separated water is preferably supplied to the What ¬ ser / steam cycle. For this example ¬, one or more pumps are used.
Mit dem Zwischenüberhitzer wird der Wirkungsgrad erhöht, mit der eine nachgeschaltete Dampfturbine betrieben wird. Mit dem Zwischenüberhitzer wird thermische Energie in den Wasserdampf des Wasser/Wasserdampf-Kreislaufs eingebracht. Zum Einbringen der thermischen Energie wird der Zwischenüberhitzer solarthermisch betrieben: Der Zwischenüberhitzer weist ein Zwischenüberhitzer-Wasserrohr zur Aufnahme des Wasserdampfs auf. Zur Zwischen-Überhitzung wird heißes, mit Hilfe von Solar- Energie (elektromagnetische Strahlung, die von der Sonne aus¬ gesandt wird und die auf die Erdoberfläche trifft) erhitztes Wärmeträger-Medium an dem Zwischenüberhitzer-Wasserrohr vorbeigeleitet. Zwischenüberhitzer-Wasserrohr und Wärmeträger- Medium sind thermisch miteinander gekoppelt. Durch das Vorbeileiten des Wärmeträger-Mediums wird der Wasserdampf im Zwischenüberhitzer-Wasserrohr überhitzt . With the reheater, the efficiency is increased, with which a downstream steam turbine is operated. With the reheater thermal energy is introduced into the water vapor of the water / steam cycle. To introduce the thermal energy of the reheater is solar thermal operated: The reheater has a reheater water pipe for receiving the water vapor. For intermediate overheating hot, with the aid of solar energy (electromagnetic radiation, which is sent from the sun ¬ and meets the earth's surface) heated heat transfer medium is passed to the reheater water pipe. Reheater water pipe and heat transfer medium are thermally coupled together. By passing the heat transfer medium, the water vapor in the reheater water pipe is overheated.
Um das Vorbeiströmen des Wärmeträger-Mediums am Zwischenüberhitzer-Wasserrohr zu bewirken, wird beispielsweise eine Wärmeträger-Pumpe oder werden mehrere Wärmeträger-Pumpen eingesetzt. Das Wärmeträger-Medium wird am Wasserrohr vorbeigepumpt. Vorzugsweise weist der Zwischenüberhitzer einen verti¬ kalen Aufbau auf, so dass das heiße Wärmeträger-Medium von „oben nach unten" durch den Wärmetauscher fließen kann. Mit dem vertikalen Aufbau des Zwischenüberhitzers wird darüber hinaus eine natürliche Bewegung des Wasserdampfs im Zwischen¬ überhitzer-Wasserrohr von „unten nach oben" ausgenutzt. In order to effect the flow of the heat transfer medium to the reheater water pipe, for example, a heat transfer pump or a plurality of heat transfer pumps are used. The heat transfer medium is pumped past the water pipe. Preferably, the reheater has a verti ¬ cal structure, so that the hot heat transfer medium from "top to bottom" through the heat exchanger can flow .. With the vertical structure of the reheater beyond a natural movement of the water vapor in the ¬ overheater water pipe exploited from "bottom to top".
In einer besonderen Ausgestaltung ist der Wärmetauscher vertikal über dem Wasserabscheider angeordnet. Auch hier wird die natürliche Bewegung des Wasserdampfs ausgenutzt. Außerdem kann das abgetrennte Wasser auf einfache Weise abgeführt und zur weiteren Verwendung wieder dem Wasser/Wasserdampf- Kreislauf zugeführt werden. In a particular embodiment, the heat exchanger is arranged vertically above the water separator. Here too will exploits the natural movement of water vapor. In addition, the separated water can be removed in a simple manner and fed to the water / steam circuit for further use.
Gemäß einer besonderen Ausgestaltung weist der Wärmetauscher mindestens ein Zwischenüberhitzer-Wasserrohr zum Führen des Wasserdampfs des Wasser/Wasserdampf-Kreislaufs auf. Dabei weist das Zwischenüberhitzer-Wasserrohr zumindest eine aus der Gruppe gerade Form, U-Form und Helix-Form ausgewählte Rohr-Form auf. Insbesondere mit der U-Form und mit der Helix- Form ist für einen effizienten Wärmeaustausch gesorgt. According to a particular embodiment, the heat exchanger has at least one reheater water pipe for guiding the water vapor of the water / steam cycle. In this case, the reheater water pipe has at least one tube shape selected from the group of straight shape, U-shape and helix shape. In particular, with the U-shape and the helical shape is provided for an efficient heat exchange.
Ein Wechsel des Beheitzungsmediums auf eine Rohrinnenseite ist im Übrigen auch denkbar. Das Wärmeträger-Medium strömt in Zwischenüberhitzer-Wärmeträgerrohren. Der Wasserdampf des Wasserdampf-Kreislaufs strömt an Außenwänden der Zwischenüb¬ erhitzer-Wärmeträgerrohre vorbei. Dabei kommt es zur Wärme- Übertragung. In einer besonderen Ausgestaltung weist der Wärmetauscher mindestens ein Zwischenüberhitzer-Wärmeträgerrohr zum Führen des Wärmeträger-Mediums des Wärmeträger-Kreislaufs auf. Dabei weist das Zwischenüberhitzer-Wärmeträgerrohr zumindest eine aus der Gruppe gerade Form, U-Form und Helix- Form ausgewählte Rohr-Form auf. Auch hier ist insbesondere mit der U-Form und der Helix-Form für einen effizienten Wärmeaustausch gesorgt. A change of Beheitzungsmediums on a pipe inside is also conceivable. The heat transfer medium flows in reheater heat transfer tubes. The steam of the water steam cycle flows past the outer walls Zwischenüb ¬ heaters heat transfer tubes. This leads to heat transfer. In a particular embodiment, the heat exchanger has at least one reheater heat transfer tube for guiding the heat transfer medium of the heat transfer circuit. In this case, the reheater heat carrier tube has at least one tube shape selected from the group of straight, U-shaped and helical shapes. Here, too, the U-shape and the helix shape ensure efficient heat exchange.
Besonders effizient ist es, wenn eine Vielzahl parallel zu¬ einander angeordneter Zwischenüberhitzer-Wasserrohre vorhan¬ den ist. Es liegt ein Zwischenüberhitzer-Wasserrohr-Bündel vor. Bei gegebenem Rohrvolumen ist eine (Gesamt- ) Rohr- Oberfläche, über die die Wärmekopplung des Wärmeträger- Mediums und des Wasserdampfs stattfindet, bei einem Zwischen¬ überhitzer-Wasserrohr-Bündel im Vergleich zu einem einzigen Zwischenüberhitzer-Wasserrohr höher . It is particularly efficient when a plurality parallel to each other ¬ arranged reheater water pipes EXISTING ¬ is. There is a reheater water pipe bundle. For a given pipe volume is a (total) pipe surface over which takes place the thermal coupling of the heat transfer medium and the water vapor is higher at an intermediate ¬ superheater water tube bundle as compared to a single reheater water pipe.
Bei einem Zwischenüberhitzer-Wasserrohr-Bündel wird bei¬ spielsweise der Wasserdampf über einen Verteiler auf die Zwi- schenüberhitzer-Wasserrohre verteilt. In jedem der Zwischen¬ überhitzer-Wasserrohre findet separat die Erzeugung von über hitztem Wasserdampf statt. Über einen Sammler wird der in de: einzelnen Zwischenüberhitzer-Wasserrohren gewonnene, überhitzte Wasserdampf wieder zusammengeführt. Der zusammenge¬ führte, überhitzte Wasserdampf wird anschließend an eine Dampfturbine weitergeleitet. Is at an intermediate superheater water tube bundle at ¬ play as the water vapor through a manifold to the intermediate distributed over water heater water pipes. In each of the intermediate ¬ superheater water pipes separately takes place the production of superheated steam. A collector collects the superheated steam recovered in the individual reheater water pipes. The zusammenge ¬ led, superheated steam is then forwarded to a steam turbine.
Zur weiteren Erhöhung der Effizienz, mit der Wärme des Wärme träger-Mediums auf den Wasserdampf des Zwischenüberhitzer- Wasserrohres übertragen werden kann, ist es vorteilhaft, die Strömungs-Richtung (und die Strömungs-Geschwindigkeit) des Wärmeträger-Mediums zu beeinflussen. Das Wärmeträger-Medium kann kanalisiert am Zwischenüberhitzer-Wasserrohr oder an de: Zwischenüberhitzer-Wasserrohren vorbei geleitet werden. Dazu ist gemäß einer besonderen Ausgestaltung eine Vielzahl von Umleitblechen zur Veränderung der Strömungs-Richtung des Wär meträger-Mediums vorhanden. To further increase the efficiency with which the heat of the heat carrier medium can be transferred to the water vapor of the reheater water pipe, it is advantageous to influence the flow direction (and the flow velocity) of the heat transfer medium. The heat transfer medium can be routed channeled to the reheater water pipe or de: reheater water pipes over. For this purpose, according to a particular embodiment, a plurality of Umleitblechen for changing the flow direction of the Wär meträger medium available.
Gemäß einer besonderen Ausgestaltung ist eine Vielzahl von Zwischenüberhitzern vorhanden. Vorzugsweise ist die Vielzahl von Dampferzeugern parallel zu einer größeren Zwischenüberhitzer-Einheit zusammengeschaltet . According to a particular embodiment, a plurality of reheaters is present. Preferably, the plurality of steam generators are connected in parallel to a larger reheater unit.
Anhand mehrerer Ausführungsbeispiele und der dazugehörigen Figuren wird die Erfindung im Folgenden näher beschrieben. Die Figuren sind schematisch und stellen keine maßstabsge¬ treuen Abbildungen dar. With reference to several embodiments and the associated figures, the invention will be described in more detail below. The figures are schematic and are not true ¬ dimensioning true to scale images.
Figur 1 zeigt ein erstes Beispiel einer Vorrichtung zur Er- zeugung von überhitztem Wasserdampf in einer seitlichen An- sieht . FIG. 1 shows a first example of a device for generating superheated steam in a lateral view.
Figur 2 zeigt ein zweites Beispiel einer Vorrichtung zur Er- zeugung von überhitztem Wasserdampf in einer seitlichen An- sieht . Ausgangspunkt ist eine Vorrichtung 1 zur Erzeugung von überhitztem Wasserdampf 30 mittels Solar-Energie . Die Vorrichtung weist Folgende Bestandteile auf: Einen Wärmeträger-Kreislauf 2 mit einem Wärmeträger-Medium 20 zur Aufnahme der Solar- Energie in Form von Wärme und einen Wasser/Wasserdampf- Kreislauf 3 mit Wasser und/oder Wasserdampf zur Bildung des überhitzten Wasserdampfs. Dabei können im Wasser/Wasserdampf- Kreislauf das Wasser und/oder der Wasserdampf in einer Strömungsrichtung 33 strömen. FIG. 2 shows a second example of a device for generating superheated steam in a lateral view. The starting point is a device 1 for generating superheated steam 30 by means of solar energy. The device comprises the following components: A heat transfer circuit 2 with a heat transfer medium 20 for receiving the solar energy in the form of heat and a water / steam circuit 3 with water and / or water vapor to form the superheated steam. The water and / or the steam can flow in a flow direction 33 in the water / steam cycle.
Der Wärmeträger-Kreislauf und der Wasser/Wasserdampf- Kreislauf sind zur Erzeugung des überhitzten Wasserdampfs über mindestens einen Wärmetauscher mindestens eines Zwischenüberhitzers 4 thermisch miteinander gekoppelt. In den Zwischenüberhitzer wird heißes Wärmeträger-Medium 22 eingebracht. Kaltes Wärmeträger-Medium 23 verlässt den Wärmetau¬ scher des Zwischenüberhitzers und steht wieder zur Aufnahme von Solar-Energie zur Verfügung. The heat transfer circuit and the water / steam circuit are thermally coupled together to generate the superheated steam over at least one heat exchanger at least one reheater 4. In the reheater hot heat transfer medium 22 is introduced. Cold heat transfer medium 23 leaves the Wärmetau ¬ shear of reheater and is again to receive solar energy available.
Im Wasser/Wasserdampf-Kreislauf ist in der Strömungsrichtung vor dem Wärmetauscher ein Wasserabscheider 5 zum Trennen von Wasser und Wasserdampf voneinander angeordnet, so dass in den Wärmetauscher im Wesentlichen nur Wasserdampf gelangen kann. Der Wärmetauscher und der Wasserabscheider sind in einem gemeinsamen Zwischenüberhitzer-Druckbehälter angeordnet. In the water / steam cycle, a water separator 5 for separating water and water vapor from each other is arranged in the flow direction in front of the heat exchanger, so that essentially only water vapor can enter the heat exchanger. The heat exchanger and the water separator are arranged in a common reheater pressure vessel.
Das im Wasserabscheider abgetrennte Wasser 50 wird dem Wasser/Wasserdampf-Kreislauf wieder zugeleitet. The water separated in the water separator 50 is returned to the water / steam cycle.
Beispiel 1 : Example 1 :
Hier wird der Wasserdampf (nach der Entspannung aus einer ersten Dampfturbine) in den Wasserabscheider geleitet. Aus dem Wasserabscheider strömt der Sattdampf direkt in ein Bündel von Zwischenüberhitzer-Wasserrohren mit U-Form (U-Rohre) . Die U-Rohre sind kreisförmig angeordnet und so platziert, dass mit den Anschlüssen zwei Teilrohrplatten gebildet werden. Diese Teilrohrplatten werden versetzt (unabhängig von einander) platziert. Damit werden die Wärmespannungen auf- grund hoher Temperaturdifferenzen vermieden. Durch Einsatz von Umleitblechen wird die Strömungsgeschwindigkeit des Wär¬ meträger-Mediums im Mantelraum erhöht und damit der Wärme¬ übergang verbessert. Here the water vapor (after the expansion from a first steam turbine) is led into the water separator. From the water separator the saturated steam flows directly into a bundle of reheater water pipes with U-shape (U-pipes). The U-tubes are arranged in a circle and placed so that two sub-tube plates are formed with the connections. These partial tube plates are placed offset (independently of each other). Thus, the thermal stresses are reason high temperature differences avoided. The flow rate of ¬ Were meträger medium is increased in the shell space, thereby improving the heat ¬ transition by using Umleitblechen.
Beispiel 2 : Example 2:
Der Aufbau des Apparats ist ähnlich zum Beispiel 1. Statt U- Rohre werden Zwischenüberhitzer-Wasserrohre mit Helix-Form im Bündel eingebaut. Um den Strömungsquerschnitt zu verkleinern, ist das Bündel in zwei Teile geteilt. Das Funktionsprinzip ist vergleichbar mit dem der U-Rohr-Anordung . The construction of the apparatus is similar to Example 1. Instead of U-tubes, reheater water pipes with helical shape are installed in the bundle. To reduce the flow area, the bundle is divided into two parts. The operating principle is comparable to that of the U-tube arrangement.
Gemäß einem weiteren, nicht dargestellten Beispiels werden Zwischenüberhitzer-Wasserrohre mit U-Form und Zwischenüber¬ hitzer-Wasserrohre mit Helix-Form eingesetzt. According to a further, not shown embodiment reheater water pipes having a U-shape and intermediate superheater ¬ water pipes are used with helical shape.
Weitere, ebenfalls nicht dargestellte Beispiele beinhalten die Führung des flüssigen Wärmeträger-Mediums im Rohrinneren. Es werden Zwischenüberhitzer-Wärmeträgerrohre mit U-Form und/oder Zwischenüberhitzer-Wärmeträgerrohre mit Helix-Form eingesetzt. Der Wasserdampf des Wasser/Wasserdampf-Kreislaufs kann an den Außenflächen der Zwischenüberhitzer- Wärmeträgerrohre vorbeiströmen, wobei es zum Energieaustausch kommt . Further, also not shown examples include the leadership of the liquid heat transfer medium in the tube interior. It is used reheater heat transfer tubes with U-shape and / or reheater heat transfer tubes with helical shape. The water vapor of the water / steam cycle can flow past the outer surfaces of the reheater heat transfer tubes, resulting in the exchange of energy.
Die beschriebene Vorrichtung wird zur Erzeugung von überhitztem Wasserdampf mittels Solar-Energie verwendet. Dabei werden folgende Verfahrensschritte durchgeführt: a) Bereitstellen des Wärmeträger-Mediums, b) Umwandeln von Solar-Energie in Wärme des Wärmeträger-Mediums, c) Bereitstellen eines Was¬ ser/Wasserdampfgemisches des Wasser/Wasserdampf-Kreislaufs, d) Abtrennen von Wasser vom Wasser/Wasserdampf-Gemisch mit Hilfe des Wasserabscheiders und d) Übertragen der Wärme des Wärmeträger-Mediums auf den verbliebenen Wasserdampf des Was¬ ser/Wasserdampf-Gemisches, wobei der überhitzte Wasserdampf erzeugt wird. Der erzeugte, überhitzte Wasserdampf wird zur Gewinnung von elektrischem Strom an eine Dampfturbine weitergeleitet. The device described is used to generate superheated steam by means of solar energy. The following process steps are carried out: a) providing the heat transfer medium, b) converting solar energy into heat of the heat transfer medium, c) providing a water / water vapor mixture of the water / steam cycle, d) separating water from Water / steam mixture with the aid of the water separator and d) transferring the heat of the heat transfer medium to the remaining water vapor of Was ¬ water / steam mixture, wherein the superheated steam is generated. The generated, superheated steam is forwarded to a steam turbine for the production of electricity.

Claims

Patentansprüche claims
1. Vorrichtung (1) zur Erzeugung von überhitztem Wasserdampf1. Device (1) for generating superheated steam
(30) mittels Solar-Energie, aufweisend: (30) by means of solar energy, comprising:
- mindestens einen Wärmeträger-Kreislauf (2) mit einem Wärme¬ träger-Medium (20) zur Aufnahme der Solar-Energie in Form von Wärme und - At least one heat transfer circuit (2) with a heat carrier medium ¬ (20) for receiving the solar energy in the form of heat and
- mindestens einen Wasser/Wasserdampf-Kreislauf (3) mit Was¬ ser und/oder Wasserdampf zur Bildung des überhitzten Wasserdampfs, wobei - At least one water / steam cycle (3) with What ¬ water and / or steam to form the superheated steam, wherein
- im Wasser/Wasserdampf-Kreislauf das Wasser und/oder der Wasserdampf in einer Strömungsrichtung (33) strömen kann, in the water / steam cycle, the water and / or the steam can flow in a flow direction (33),
- der Wärmeträger-Kreislauf und der Wasser/Wasserdampf- Kreislauf zur Erzeugung des überhitzten Wasserdampfs über mindestens einen Wärmetauscher (40) mindestens eines Zwischenüberhitzers (4) thermisch miteinander gekoppelt sind,- The heat transfer circuit and the water / steam circuit for generating the superheated steam via at least one heat exchanger (40) of at least one reheater (4) are thermally coupled together,
- im Wasser/Wasserdampf-Kreislauf in der Strömungsrichtung vor dem Wärmetauscher mindestens ein Wasserabscheider (5) zum Trennen von Wasser und Wasserdampf voneinander angeordnet ist, so dass in den Wärmetauscher im Wesentlichen nur Wasserdampf gelangen kann, und - Is arranged in the water / steam cycle in the flow direction upstream of the heat exchanger at least one water separator (5) for separating water and water vapor from each other, so that in the heat exchanger substantially only water vapor can pass, and
- der Wärmetauscher und der Wasserabscheider in einem gemeinsamen Zwischenüberhitzer-Druckbehälter (6) angeordnet sind.  - The heat exchanger and the water separator in a common reheater pressure vessel (6) are arranged.
2. Vorrichtung nach Anspruch 1, wobei der Wasserabscheider und der Wärmetauscher unmittelbar aneinander angeordnet sind. 2. Device according to claim 1, wherein the water separator and the heat exchanger are arranged directly adjacent to each other.
3. Vorrichtung nach Anspruch 1 oder 2, wobei der Wärmetauscher vertikal über dem Wasserabscheider angeordnet ist. 3. Device according to claim 1 or 2, wherein the heat exchanger is arranged vertically above the water separator.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, wobei der Wärmetauscher mindestens ein Zwischenüberhitzer-Wasserrohr4. Device according to one of claims 1 to 3, wherein the heat exchanger at least one reheater water pipe
(31) zum Führen des Wasserdampfs des Wasser/Wasserdampf- Kreislaufs aufweist und das Zwischenüberhitzer-Wasserrohr zumindest eine aus der Gruppe gerade Form, U-Form und Helix- Form ausgewählte Rohr-Form aufweist. (31) for guiding the water vapor of the water / steam circuit and the reheater water pipe has at least one selected from the group of straight shape, U-shape and helical shape tube shape.
5. Vorrichtung nach einem der , jisprüche 1 bis 4, wobei der Wärmetauscher mindestens ein Z1 'ischenüberhitzer- Wärmeträgerrohr zum Führen des Wärmeträger-Mediums des Wärme- träger-Kreislaufs aufweist und das ZwischenüberhitzerWärmeträgerrohr zumindest eine aus der Gruppe gerade Form, U- Form und Helix-Form ausgewählt Rohr-Form aufweist. 5. Device according to one of the, jisprüche 1 to 4, wherein the heat exchanger has at least one Z 1 'ischenüberhitzer- heat carrier tube for guiding the heat transfer medium of the heat carrier circuit and the reheater heat carrier tube at least one of the group straight shape, U-shape and helical shape selected having tubular shape.
6. Vorrichtung nach einem der Ansprüche 1 bis 5, wobei eine Vielzahl (32) von parallel zueinander angeordneten Zwischenüberhitzer-Wasserrohren und/oder eine Vielzahl von parallel zueinander angeordneten Zwischenüberhitzer-Wärmeträgerrohren vorhanden sind. 6. Device according to one of claims 1 to 5, wherein a plurality (32) arranged parallel to each other reheater water pipes and / or a plurality of mutually parallel reheater heat transfer tubes are present.
7. Vorrichtung nach einem der Ansprüche 1 bis 6, wobei eine Vielzahl von Umleitblechen zur Veränderung der Strömungs- Richtung des Wärmeträger-Mediums vorhanden ist. 7. Device according to one of claims 1 to 6, wherein a plurality of baffles for changing the flow direction of the heat transfer medium is present.
8. Vorrichtung nach einem der Ansprüche 1 bis 7, wobei eine Vielzahl von Zwischenüberhitzern vorhanden ist. 8. Device according to one of claims 1 to 7, wherein a plurality of reheaters is present.
9. Verfahren zum Erzeugen von überhitztem Wasserdampf unter Verwendung einer Vorrichtung nach einem der Ansprüche 1 bis mit folgenden Verfahrensschritten: 9. A method for generating superheated steam using a device according to any one of claims 1 to the following method steps:
a) Bereitstellen des Wärmeträger-Mediums, a) providing the heat transfer medium,
b) Umwandeln von Solar-Energie in Wärme des Wärmeträger- Mediums , b) converting solar energy into heat of the heat transfer medium,
c) Bereitstellen eines Wasser/Wasserdampfgemisches des Was¬ ser/Wasserdampf-Kreislaufs, c) providing a water / water vapor mixture of What ¬ ser / steam circuit,
d) Abtrennen von Wasser vom Wasser/Wasserdampf-Gemisch mit Hilfe des Wasserabscheiders und d) separating water from the water / water vapor mixture by means of the water separator and
d) Übertragen der Wärme des Wärmeträger-Mediums auf den ver¬ bliebenen Wasserdampf des Wasser/Wasserdampf-Gemisches, wobe der überhitzte Wasserdampf erzeugt wird. d) transferring the heat of the heat transfer medium to the remaining water vapor ¬ steam of the water / steam mixture, whereby the superheated steam is generated.
10. Verwendung des gemäß Verfahren nach Anspruch 9 überhitzten Wasserdampfes zur Gewinnung von elektrischer Energie, wobei mit Hilfe des überhitzten Wasserdampfes eine Dampfturbine (12) angetrieben wird. 10. Use of the superheated in accordance with the method of claim 9 water vapor for the production of electrical energy, wherein with the aid of the superheated steam, a steam turbine (12) is driven.
EP11766961.4A 2010-09-30 2011-09-29 Apparatus and method for producing superheated steam Withdrawn EP2609300A2 (en)

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DE102010041734A DE102010041734A1 (en) 2010-09-30 2010-09-30 Apparatus and method for generating superheated steam by means of solar thermal reheater and use of the superheated steam
PCT/EP2011/067027 WO2012041980A2 (en) 2010-09-30 2011-09-29 Apparatus and method for producing superheated steam by means of a solar-thermally operated reheater and use of the superheated steam

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DE102010041734A1 (en) 2012-04-05
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WO2012041980A3 (en) 2013-05-30
RU2013119908A (en) 2014-11-10
US20130233301A1 (en) 2013-09-12

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