EP1703201B1 - Process for heat transfer - Google Patents

Process for heat transfer Download PDF

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Publication number
EP1703201B1
EP1703201B1 EP05005089A EP05005089A EP1703201B1 EP 1703201 B1 EP1703201 B1 EP 1703201B1 EP 05005089 A EP05005089 A EP 05005089A EP 05005089 A EP05005089 A EP 05005089A EP 1703201 B1 EP1703201 B1 EP 1703201B1
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EP
European Patent Office
Prior art keywords
heat exchanger
medium
plate heat
liquid
gaseous
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Not-in-force
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EP05005089A
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German (de)
French (fr)
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EP1703201A1 (en
Inventor
David Hawkins
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Kelvion PHE GmbH
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GEA Ecoflex GmbH
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Application filed by GEA Ecoflex GmbH filed Critical GEA Ecoflex GmbH
Priority to AT05005089T priority Critical patent/ATE445812T1/en
Priority to DK05005089T priority patent/DK1703201T3/en
Priority to DE502005008317T priority patent/DE502005008317D1/en
Priority to EP05005089A priority patent/EP1703201B1/en
Priority to US11/146,510 priority patent/US7284380B2/en
Publication of EP1703201A1 publication Critical patent/EP1703201A1/en
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Publication of EP1703201B1 publication Critical patent/EP1703201B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/003—Feed-water heater systems

Definitions

  • the invention relates to a method for heat energy transfer between a gaseous, warmer medium on the one hand and a liquid, colder medium on the other hand.
  • the object of the invention is therefore to provide an improved method for heat energy transfer.
  • the invention proposes to provide a method for heat energy transfer between a gaseous, warmer medium on the one hand and a liquid, colder medium on the other hand according to the independent claim 1.
  • the quantitative ratio of liquid and gaseous medium is chosen as a function of the temperature difference between liquid and gaseous medium at the beginning of the thermal energy transfer.
  • the flow of the liquid medium can be divided, in which case only part of the liquid medium flow is passed through the plate heat exchanger.
  • the amount of the liquid medium in the partial flow can be determined, wherein it depends on the temperature difference between the liquid and gaseous medium at the beginning of the heat energy transfer.
  • the flow of the gaseous medium before reaching the plate heat exchanger in a main gas flow on the one hand and a side stream on the other hand is divided.
  • the main gas stream is passed through the plate heat exchanger for heat energy transfer whereas the side gas stream is routed around the plate heat exchanger.
  • the secondary gas flow is thus a bypass for the plate heat exchanger.
  • the purpose of the by-pass gas stream is to re-mix the main gas stream after passing through the plate heat exchanger with the secondary gas stream so that the acid dew point can be avoided.
  • the quantity ratio of the main gas flow and the secondary gas flow must be selected accordingly.
  • a mixer connected downstream of the plate heat exchanger in the flow direction is preferably used.
  • a hybrid heat exchanger is used as a plate heat exchanger, which has been found to be particularly suitable for achieving an optimized heat energy transfer between gaseous medium on the one hand and liquid medium on the other.
  • the liquid medium is guided for the purpose of generating electrical energy in a closed flow circuit I.
  • This flow circuit I is formed by a pipeline 10, in which the liquid medium, for example feed water, is circulated by means of pumps 4.
  • the liquid medium is fed into a boiler 1, where it is evaporated.
  • the resulting vapor is then passed through a turbine 2 for electrical power generation.
  • the expanded steam passes to a condenser 3, where the liquid medium condenses out.
  • the resulting condensate is fed back to the boiler 1 via a degasser 5.
  • the turbine 2 and the degasser 5 via a bypass 11 in fluid communication.
  • the exhaust gases leaving the boiler 1 are conducted as gaseous medium through the open flow circuit II to the chimney 8.
  • a suction gas 9 is introduced for this purpose.
  • the liquid medium leaving the condenser 3 is discharged via the feed 13 and the discharge 14 through a plate heat exchanger 6, which is preferably designed as a hybrid heat exchanger.
  • the feed 13 is connected to the pipeline 10 with the interposition of a freely adjustable valve 16.
  • the plate heat exchanger 6 the liquid medium is guided past a part of the gaseous medium leaving the boiler 1 as waste gas. This leads to a cooling of the gaseous medium, wherein the water contained therein condenses out. The heat energy released as a result of the condensation is transferred to the liquid medium, so that the liquid medium leaving the plate heat exchanger 6 is warmer than the liquid medium entering the plate heat exchanger 6.
  • the flow of the gaseous medium is divided into a main gas stream and a secondary gas stream.
  • the main gas stream is passed through the plate heat exchanger 6, whereas the secondary gas stream is bypassed around the plate heat exchanger 6 as a bypass 12.
  • a mixer 7 is provided behind the plate heat exchanger 6, in which the main gas flow leaving the plate heat exchanger 6 is mixed with the side gas flow passing past the plate heat exchanger 6. The ratio of the main gas stream and the secondary gas stream is chosen so that a drop below the acid dew point is avoided.
  • measuring points a-m are shown in the schematic illustration according to FIG. 1, the measured values being reproduced at these measuring points in the following table: measuring point temperature print enthalpy a 109 ° C 60 bar 461 kJ / kg b 300 ° C 60 bar 2,885 kJ / kg c 30 ° C 1.4 bar 126 kJ / kg d 30 ° C 2 bar 126 kJ / kg e 100 ° C 1.4 bar 418 kJ / kg f 79 ° C 1.4 bar 330 kJ / kg G 180 ° C 3 bar 2,824 kJ / kg H 109 ° C 1.4 bar 457 kJ / kg i 199 ° C 218.9 kJ / kg j 199 ° C 229 kJ / kg k 199 ° C 218.9 kJ / kg l 50 ° C 54 kJ / kg m 95 ° C

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Furnace Details (AREA)
  • Treating Waste Gases (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)

Abstract

The method involves passing a liquid medium and a gaseous medium by utilizing a plate heat exchanger, where the gaseous medium is cooled down and the water contained is condensed out. A quantity ratio of the liquid to the gaseous medium is selected as a function of the temperature difference between the liquid and gaseous media at the beginning of the heat energy transfer. The heat energy released due to condensation is transferred to the liquid medium.

Description

Die Erfindung betrifft ein Verfahren zur Wärmeenergieübertragung zwischen einem gasförmigen, wärmeren Medium einerseits und einem flüssigen, kälteren Medium andererseits.The invention relates to a method for heat energy transfer between a gaseous, warmer medium on the one hand and a liquid, colder medium on the other hand.

Verfahren der vorbekannten Art sind aus dem Stand der Technik an sich bekannt, so daß es eines gesonderten, druckschriftlichen Nachweises an dieser Stelle nicht bedarf. Auch ist es aus dem Stand der Technik bekannt, zur Wärmeenergieübertragung Plattenwärmetauscher einzusetzen. Plattenwärmetauscher als solche sind aus dem Stand der Technik wohlbekannt, so zum Beispiel aus der EP 0 658 735 B1 , und aus der US 6 470 835 B1 .Methods of the known type are known from the prior art, so that it does not require a separate, printed evidence at this point. It is also known from the prior art to use for heat energy transfer plate heat exchanger. Plate heat exchangers as such are well known in the art, such as the EP 0 658 735 B1 , and from the US Pat. No. 6,470,835 B1 ,

Obgleich Verfahren zur Wärmeenergieübertragung aus dem Stand der Technik bekannt sind und sie sich im Praxiseinsatz bewährt haben, sind sie nicht frei von Nachteilen. Es besteht daher ein ständiges Bestreben, Verfahren der vorgenannten Art zu optimieren, insbesondere mit Blick auf ihren Wirkungsgrad.Although prior art thermal energy transfer methods are known and have proven useful in the field, they are not free from disadvantages. There is therefore a constant endeavor to optimize methods of the aforementioned type, in particular with regard to their efficiency.

Aufgabe der Erfindung ist es daher, ein verbessertes Verfahren zur Wärmeenergieübertragung anzugeben. The object of the invention is therefore to provide an improved method for heat energy transfer.

Zur Lösung dieser Aufgabe wird mit der Erfindung vorgeschlagen ein Verfahren zur Wärmeenergieübertragung zwischen einem gasförmigen, wärmeren Medium einerseits und einem flüssigen, kälteren Medium andererseits gemäß dem unabhängigen Anspruch 1 anzugeben.To solve this problem, the invention proposes to provide a method for heat energy transfer between a gaseous, warmer medium on the one hand and a liquid, colder medium on the other hand according to the independent claim 1.

Anders als bei dem aus dem Stand der Technik bekannten Verfahren wird beim erfindungsgemäßen Verfahren nicht nur ein einfacher Wärmeübergang zwischen dem gasförmigen Medium und dem flüssigen Medium erreicht, vielmehr ist vorgesehen, das gasförmige Medium so weit abzukühlen, daß das darin enthaltene Wasser auskondensiert. Die dabei frei werdende Energie wird mittels des Plattenwärmetauschers an das flüssige Medium übertragen, welches dadurch aufgeheizt wird. Der Wirkungsgrad dieses Verfahrens ist in vorteilhafter Weise sehr viel besser als bei den aus dem Stand der Technik bekannten Verfahren.Unlike the method known from the prior art, not only a simple heat transfer between the gaseous medium and the liquid medium is achieved in the inventive method, but it is provided to cool the gaseous medium so far that the water contained therein condenses out. The released energy is transferred by means of the plate heat exchanger to the liquid medium, which is heated by it. The efficiency of this method is advantageously much better than the methods known from the prior art.

Das Mengenverhältnis von flüssigem und gasförmigem Medium wird in Abhängigkeit der Temperaturdifferenz zwischen flüssigem und gasförmigem Medium zu Beginn der Wärmeenergieübertragung gewählt. Zu diesem Zweck kann der Strom des flüssigen Mediums geteilt werden, wobei dann nur der eine Teil des flüssigen Mediumstroms durch den Plattenwärmetauscher geführt wird. In Abhängigkeit der Menge an flüssigem Medium kann die Menge des flüssigen Mediums im Teilstrom bestimmt werden, wobei es auf die Temperaturdifferenz zwischen flüssigem und gasförmigem Medium zu Beginn der Wärmeenergieübertragung ankommt. Diese Ausgestaltung macht es in vorteilhafter Weise möglich, auf das erfindungsgemäße Verfahren regulierend einzugreifen, so daß die Verfahrensdurchführung mit Blick auf eine optimierte Wärmeenergieübertragung verändert und wahlweise eingestellt werden kann.The quantitative ratio of liquid and gaseous medium is chosen as a function of the temperature difference between liquid and gaseous medium at the beginning of the thermal energy transfer. For this purpose, the flow of the liquid medium can be divided, in which case only part of the liquid medium flow is passed through the plate heat exchanger. Depending on the amount of liquid medium, the amount of the liquid medium in the partial flow can be determined, wherein it depends on the temperature difference between the liquid and gaseous medium at the beginning of the heat energy transfer. This embodiment makes it possible in an advantageous manner to intervene in regulating the method according to the invention, so that the process implementation can be changed with regard to an optimized heat energy transfer and optionally set.

Gemäß der Erfindung ist vorgesehen, daß der Strom des gasförmigen Mediums vor Erreichen des Plattenwärmetauschers in einen Hauptgasstrom einerseits und einen Nebengasstrom andererseits unterteilt wird. Der Hauptgasstrom wird zwecks Wärmeenergieübertragung durch den Plattenwärmetauscher geführt, wohingegen der Nebengasstrom um den Plattenwärmetauscher herum geführt wird. Der Nebengasstrom stellt insofern einen Bypass für den Plattenwärmetauscher dar.According to the invention, it is provided that the flow of the gaseous medium before reaching the plate heat exchanger in a main gas flow on the one hand and a side stream on the other hand is divided. The main gas stream is passed through the plate heat exchanger for heat energy transfer whereas the side gas stream is routed around the plate heat exchanger. The secondary gas flow is thus a bypass for the plate heat exchanger.

Sinn und Zweck des Nebengasstromes, das heißt des Bypasses ist es, den Hauptgasstrom nach einem Passieren des Plattenwärmetauschers mit dem Nebengasstrom wieder zu vermischen, so daß eine Unterschreitung des Säuretaupunktes vermieden werden kann. Zu diesem Zweck ist das Mengenverhältnis von Hauptgasstrom und Nebengasstrom entsprechend zu wählen. Zur Vermischung von Hauptgasstrom und Nebengasstrom wird vorzugsweise ein dem Plattenwärmetauscher in Strömungsrichtung nachgeschalteter Mischer eingesetzt.The purpose of the by-pass gas stream, that is the bypass, is to re-mix the main gas stream after passing through the plate heat exchanger with the secondary gas stream so that the acid dew point can be avoided. For this purpose, the quantity ratio of the main gas flow and the secondary gas flow must be selected accordingly. For mixing the main gas stream and the secondary gas stream, a mixer connected downstream of the plate heat exchanger in the flow direction is preferably used.

Gemäß einem weiteren Merkmal der Erfindung ist vorgesehen, daß als Plattenwärmetauscher ein Hybridwärmetauscher eingesetzt wird, der sich als besonders geeignet für die Erzielung einer optimierten Wärmeenergieübertragung zwischen gasförmigem Medium einerseits und flüssigem Medium andererseits herausgestellt hat.According to a further feature of the invention it is provided that a hybrid heat exchanger is used as a plate heat exchanger, which has been found to be particularly suitable for achieving an optimized heat energy transfer between gaseous medium on the one hand and liquid medium on the other.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung anhand der einzigen Figur. Diese zeigt in schematischer Darstellung den Verfahrensablauf des erfindungsgemäßen Verfahrens.Further advantages and features of the invention will become apparent from the following description with reference to the single figure. This shows a schematic representation of the procedure of the method according to the invention.

Wie die Fig. erkennen läßt, wird das flüssige Medium zwecks elektrischer Energieerzeugung in einem geschlossenen Strömungskreislauf I geführt. Dieser Strömungskreislauf I ist durch eine Rohrleitung 10 gebildet, in der das flüssige Medium, beispielsweise Speisewasser, mittels Pumpen 4 umgewälzt wird.As can be seen in the figures, the liquid medium is guided for the purpose of generating electrical energy in a closed flow circuit I. This flow circuit I is formed by a pipeline 10, in which the liquid medium, for example feed water, is circulated by means of pumps 4.

Das flüssige Medium wird in einen Kessel 1 geführt, wo es verdampft wird. Der entstehende Dampf wird alsdann zur elektrischen Energieerzeugung durch eine Turbine 2 geführt. Nach Passieren der Turbine 2 gelangt der entspannte Dampf zu einem Kondensator 3, wo das flüssige Medium auskondensiert. Das dabei entstehende Kondensat wird über einen Entgaser 5 dem Kessel 1 wieder zugeführt. Dabei stehen, wie die Fig. deutlich erkennen läßt, die Turbine 2 und der Entgaser 5 über einen Bypass 11 in strömungstechnischer Verbindung.The liquid medium is fed into a boiler 1, where it is evaporated. The resulting vapor is then passed through a turbine 2 for electrical power generation. After passing through the turbine 2, the expanded steam passes to a condenser 3, where the liquid medium condenses out. The resulting condensate is fed back to the boiler 1 via a degasser 5. In this case, as the figures can be clearly seen, the turbine 2 and the degasser 5 via a bypass 11 in fluid communication.

Die Abgase, die den Kessel 1 verlassen, werden als gasförmiges Medium über den offenen Strömungskreislauf II zum Kamin 8 geführt. In die Rohrleitung 15 ist zu diesem Zweck ein Sauggasabzug 9 eingebracht.The exhaust gases leaving the boiler 1 are conducted as gaseous medium through the open flow circuit II to the chimney 8. In the pipe 15, a suction gas 9 is introduced for this purpose.

Erfindungsgemäß wird zumindest ein Teil des flüssigen Mediums, welches den Kondensator 3 verläßt, über die Zuführung 13 und die Abführung 14 durch einen Plattenwärmetauscher 6, der vorzugsweise als Hybridwärmetauscher ausgebildet ist, abgeführt. Zu diesem Zweck ist die Zuführung 13 unter Zwischenschaltung eines frei einstellbaren Ventils 16 an die Rohrleitung 10 angeschlossen. Im Plattenwärmetauscher 6 wird das flüssige Medium an einem Teil des als Abgas den Kessel 1 verlassenden gasförmigen Mediums vorbeigeführt. Hierdurch kommt es zu einer Abkühlung des gasförmigen Mediums, wobei das darin enthaltene Wasser auskondensiert. Die infolge der Kondensation frei werdende Wärmeenergie wird an das flüssige Medium übertragen, so daß das den Plattenwärmetauscher 6 verlassende flüssige Medium wärmer ist, als das in den Plattenwärmetauscher 6 eintretende flüssige Medium.According to the invention, at least part of the liquid medium leaving the condenser 3 is discharged via the feed 13 and the discharge 14 through a plate heat exchanger 6, which is preferably designed as a hybrid heat exchanger. For this purpose, the feed 13 is connected to the pipeline 10 with the interposition of a freely adjustable valve 16. In the plate heat exchanger 6, the liquid medium is guided past a part of the gaseous medium leaving the boiler 1 as waste gas. This leads to a cooling of the gaseous medium, wherein the water contained therein condenses out. The heat energy released as a result of the condensation is transferred to the liquid medium, so that the liquid medium leaving the plate heat exchanger 6 is warmer than the liquid medium entering the plate heat exchanger 6.

Vor Eintritt in den Plattenwärmetauscher 6 wird der Strom des gasförmigen Mediums in einen Hauptgasstrom und einen Nebengasstrom unterteilt. Der Hauptgasstrom wird durch den Plattenwärmetauscher 6 geführt, wohingegen der Nebengasstrom als Bypass 12 um den Plattenwärmetauscher 6 herumgeführt wird. In Strömungsrichtung ist hinter dem Plattenwärmetauscher 6 ein Mischer 7 vorgesehen, in dem der den Plattenwärmetauscher 6 verlassende Hauptgasstrom mit dem am Plattenwärmetauscher 6 vorbeigeführten Nebengasstrom vermischt wird. Dabei wird das Mengenverhältnis von Hauptgasstrom und Nebengasstrom so gewählt, daß eine Unterschreitung des Säuretaupunktes vermieden wird.Before entering the plate heat exchanger 6, the flow of the gaseous medium is divided into a main gas stream and a secondary gas stream. The main gas stream is passed through the plate heat exchanger 6, whereas the secondary gas stream is bypassed around the plate heat exchanger 6 as a bypass 12. In the flow direction, a mixer 7 is provided behind the plate heat exchanger 6, in which the main gas flow leaving the plate heat exchanger 6 is mixed with the side gas flow passing past the plate heat exchanger 6. The ratio of the main gas stream and the secondary gas stream is chosen so that a drop below the acid dew point is avoided.

Wie die Fig. erkennen läßt, wird nicht der gesamte Strom des flüssigen Mediums durch den Plattenwärmetauscher 6 geführt. Über die Zuführung 13 und die Abführung 14 gelangt vielmehr nur ein Teil des flüssigen Mediums durch den Plattenwärmetauscher 6. Dabei wird das Mengenverhältnis von flüssigem Medium und gasförmigem Medium, welche durch den Plattenwärmetauscher 6 geführt werden, in Abhängigkeit der Temperaturdifferenz zwischen flüssigem und gasförmigem Medium zu Beginn der Wärmeenergieübertragung gewählt. Auf diese Weise läßt sich die Verfahrensführung in Abhängigkeit der Medientemperaturen optimieren, so daß sichergestellt ist, daß stets ein hinsichtlich der zur Verfügung stehenden Medienmengen und der herrschenden Temperaturunterschiede eine optimierte Wärmeenergieübertragung auf das flüssige Medium stattfindet.As can be seen in the figures, not the entire flow of the liquid medium is passed through the plate heat exchanger 6. On the supply 13 and the discharge 14 rather only a portion of the liquid medium passes through the plate heat exchanger 6. In this case, the quantitative ratio of liquid medium and gaseous medium which are passed through the plate heat exchanger 6, depending on the temperature difference between the liquid and gaseous medium Start of heat energy transfer selected. In this way, the process control can be optimized as a function of the media temperatures, so that it is ensured that always takes place with regard to the available amounts of media and the prevailing temperature differences optimized heat energy transfer to the liquid medium.

Zur weiteren Verdeutlichung des erfindungsgemäßen Verfahrens sind in die schematische Darstellung nach der Fig. Meßstellen a - m eingezeichnet, wobei die Meßwerte an diesen Meßstellen in der nachfolgenden Tabelle wiedergegeben sind: Meßstelle Temperatur Druck Entalpie a 109°C 60 bar 461 kJ/kg b 300°C 60 bar 2.885 kJ/kg c 30°C 1,4 bar 126 kJ/kg d 30°C 2 bar 126 kJ/kg e 100°C 1,4 bar 418 kJ/kg f 79°C 1,4 bar 330 kJ/kg g 180°C 3 bar 2.824 kJ/kg h 109°C 1,4 bar 457 kJ/kg i 199°C 218,9 kJ/kg j 199°C 229 kJ/kg k 199°C 218,9 kJ/kg l 50°C 54 kJ/kg m 95°C 102 kJ/kg To further illustrate the method according to the invention, measuring points a-m are shown in the schematic illustration according to FIG. 1, the measured values being reproduced at these measuring points in the following table: measuring point temperature print enthalpy a 109 ° C 60 bar 461 kJ / kg b 300 ° C 60 bar 2,885 kJ / kg c 30 ° C 1.4 bar 126 kJ / kg d 30 ° C 2 bar 126 kJ / kg e 100 ° C 1.4 bar 418 kJ / kg f 79 ° C 1.4 bar 330 kJ / kg G 180 ° C 3 bar 2,824 kJ / kg H 109 ° C 1.4 bar 457 kJ / kg i 199 ° C 218.9 kJ / kg j 199 ° C 229 kJ / kg k 199 ° C 218.9 kJ / kg l 50 ° C 54 kJ / kg m 95 ° C 102 kJ / kg

Mit den in der vorstehenden Tabelle beispielhaft angegebenen Werten wird mit dem erfindungsgemäßen Verfahren eine Wärmerückgewinnung von 2.559 kW erreicht.With the values given by way of example in the table above, a heat recovery of 2,559 kW is achieved with the method according to the invention.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

II
Strömungskreislauf flüssiges MediumFlow circuit liquid medium
IIII
Strömungskreislauf gasförmiges MediumFlow circuit gaseous medium
11
Kesselboiler
22
Turbineturbine
33
Kondensatorcapacitor
44
Pumpepump
55
Entgaserdegasser
66
PlattenwärmetauscherPlate heat exchanger
77
Mischermixer
88th
Kaminfireplace
99
SaugabzugSaugabzug
1010
Rohrpipe
1111
Bypassbypass
1212
Bypassbypass
1313
Zuführungfeed
1414
Abführungremoval
1515
Leitungmanagement
1616
VentilValve
a - mat the
Meßstellemeasuring point

Claims (6)

  1. A method for heat energy transfer between a gaseous, hotter medium, on the one hand, and a liquid, colder medium, on the other hand, in which the liquid and the gaseous media are guided past one another using a plate heat exchanger (6), the gaseous medium being cooled and the water contained therein condensing out, the heat energy released as a result of the condensation being transferred to the liquid medium,
    characterized in that the stream of the gaseous medium is divided into a main stream and a secondary stream before reaching the plate heat exchanger (6).
  2. The method according to Claim 1, characterized in that the quantity ratio of liquid and gaseous media is selected as a function of the temperature differential between liquid and gaseous media at the beginning of the heat energy transfer.
  3. The method according to Claim 1 or 2, characterized in that the secondary stream of the gaseous medium is guided around the plate heat exchanger (6).
  4. The method according to one of the preceding claims, characterized in that the main stream of the gaseous medium is mixed with the secondary gas stream of the gaseous medium, which is guided past the plate heat exchanger (6), after passing the plate heat exchanger (6).
  5. The method according to one of the preceding claims, characterized in that the quantity ratio of main gas stream and secondary gas stream is selected so that the temperature is prevented from falling below the acid dewpoint.
  6. The method according to one of the preceding claims, characterized in that a hybrid heat exchanger is used as the plate heat exchanger (6).
EP05005089A 2005-03-09 2005-03-09 Process for heat transfer Not-in-force EP1703201B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT05005089T ATE445812T1 (en) 2005-03-09 2005-03-09 METHOD FOR THERMAL ENERGY TRANSFER
DK05005089T DK1703201T3 (en) 2005-03-09 2005-03-09 Process for heat energy transfer
DE502005008317T DE502005008317D1 (en) 2005-03-09 2005-03-09 Method for heat energy transfer
EP05005089A EP1703201B1 (en) 2005-03-09 2005-03-09 Process for heat transfer
US11/146,510 US7284380B2 (en) 2005-03-09 2005-06-07 Method for heat energy transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05005089A EP1703201B1 (en) 2005-03-09 2005-03-09 Process for heat transfer

Publications (2)

Publication Number Publication Date
EP1703201A1 EP1703201A1 (en) 2006-09-20
EP1703201B1 true EP1703201B1 (en) 2009-10-14

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EP05005089A Not-in-force EP1703201B1 (en) 2005-03-09 2005-03-09 Process for heat transfer

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US (1) US7284380B2 (en)
EP (1) EP1703201B1 (en)
AT (1) ATE445812T1 (en)
DE (1) DE502005008317D1 (en)
DK (1) DK1703201T3 (en)

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US7284380B2 (en) 2007-10-23
ATE445812T1 (en) 2009-10-15
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EP1703201A1 (en) 2006-09-20
US20060201166A1 (en) 2006-09-14

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