EP0131187A2 - Heat exchanger for heating organic heat exchange media - Google Patents

Heat exchanger for heating organic heat exchange media Download PDF

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Publication number
EP0131187A2
EP0131187A2 EP84107158A EP84107158A EP0131187A2 EP 0131187 A2 EP0131187 A2 EP 0131187A2 EP 84107158 A EP84107158 A EP 84107158A EP 84107158 A EP84107158 A EP 84107158A EP 0131187 A2 EP0131187 A2 EP 0131187A2
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EP
European Patent Office
Prior art keywords
heat exchanger
jacket
housing
cover
exchanger according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84107158A
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German (de)
French (fr)
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EP0131187A3 (en
EP0131187B1 (en
Inventor
Dieter Engelhardt
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ENGELHARDT, DIETER
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Individual
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Priority to AT84107158T priority Critical patent/ATE32258T1/en
Publication of EP0131187A2 publication Critical patent/EP0131187A2/en
Publication of EP0131187A3 publication Critical patent/EP0131187A3/en
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Publication of EP0131187B1 publication Critical patent/EP0131187B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/06—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/355—Heat exchange having separate flow passage for two distinct fluids
    • Y10S165/40—Shell enclosed conduit assembly
    • Y10S165/439—Serially connected conduit assemblies, i.e. no manifold

Definitions

  • the invention relates to a heat exchanger for heating, in particular, organic heat transfer media with the aid of combustion gases, consisting of a housing with a jacket, base and cover and at least one pipe register accommodated in the housing, the housing having thermal protection and an inlet and an outlet for the combustion exhaust gases.
  • the flue gases can be generated in a separate combustion chamber or with a burner installed on the floor.
  • the jacket has a reinforcement or lining made of ceramic material, for example, brick, refractory bricks as heat protection.
  • ceramic material for example, brick, refractory bricks
  • an organic heat transfer medium such as a thermal oil
  • the object of the invention is to avoid undesired reheating of the heat transfer medium after switching off the system having the heat exchanger.
  • cooling systems through which a cooling medium flows, at least in regions, on the outside of the jacket, the bottom and the cover, e.g. welded full pipes, cooling jackets or half pipes are arranged, which are attached with their free edges to the relevant components.
  • this invention achieves a 100% containment of the flame with cooled surfaces and thus a lower flame temperature compared to conventional combustion chamber designs. This avoids the environmentally harmful nitrogen oxide pollution associated with higher combustion temperatures.
  • the cooling systems with their free edges on the assigned components, i.e.
  • the jacket, cover and base are welded, in particular on the cover and base, they can be laid in a meandering shape, but also spirally. Otherwise, a version is recommended in which the half-tubes are laid on the jacket as a spiral surrounding the jacket. This arrangement can also be varied with regard to different thermal loads on the individual housing parts in that the half-tubes are laid on the jacket as a spiral with a variable pitch.
  • the spiral will be installed with a small pitch in areas with high thermal loads and the spiral with a larger pitch in areas with lower thermal loads.
  • Versions with burner arrangement or flue gas inlet in the floor and concentrically arranged coils are characterized in that the combustion gases are deflected in the area of the cover. The flue gases then flow through the annular gaps formed by the coils and the cooled jacket to the round gas outlet. Since the greatest heat load on the jacket of the heat exchanger takes place in the area of the flue gas deflection, the spiral of the cooling pipes near the cover should have the smallest slope. The remaining areas of the jacket need to be cooled less, in particular cooling in the jacket area without an annular space can be dispensed with, because here the cooling is carried out by the pipe coil lying on the inside of the jacket.
  • the heat exchanger shown is used to heat organic heat transfer media in particular with the aid of combustion exhaust gases. It exists in its basic structure of a cylindrical steel jacket 1, which is closed at both ends by a cover 2 and a bottom 3.
  • a pipe register 5 is arranged, which consists of a spirally arranged pipe coil, the individual turns 6 of which are arranged close to one another and close to the inside of the jacket 1.
  • the pipe register has in the area of the bottom 3 the inlet connector 7 and extends to shortly before the cover 2.
  • the turns 6 merge into the turns 8 of a second pipe register 9, which is concentric with the first pipe register and around it also with close to one another lying turns 8 is arranged.
  • the second pipe register 9 ends at an outlet connection 15.
  • the jacket extension 12 extends from the cover 2 to approximately half the length of the jacket 1 and is connected to the jacket 1 via a radial flange 14.
  • an outlet connection 10 for the combustion exhaust gases is connected to the annular space 13.
  • the combustion exhaust gases consequently flow from the inlet connection 4 in the base 3 to the cover 2, where they are deflected into the annular space 13, which they leave through the outlet connection 10.
  • the annular space is delimited on the inside by the tightly lying turns 6 of the tube register 5.
  • the bottom 3 has inlet ports 4 for combustion gases of a burner, not shown.
  • cooling tubes are laid on the outside on cover 2 and base 3. These are half-tubes 16 which are welded with their free edges to the outside of cover 2 or base 3.
  • the half pipes 16 are laid in the form of meanders on the cover 2 and the bottom 3.
  • At the ends of the cooling coil there are connecting pieces 17 and 18, respectively, via which the cooling medium can be supplied or removed.
  • the jacket extension 12 also has a cooling coil on the outside in the form of a spiral made from half-tubes 19, which are welded with their free edges to the outside of the jacket extension 12.
  • the spiral has an uneven slope.
  • the slope in the lid area is small because the heat load is greatest there due to the deflection of the combustion exhaust gases.
  • the slope of the spiral becomes increasingly larger in the direction of the radial flange 14.
  • This spiral cooling coil also has connecting pieces 20, 21 through which a corresponding cooling medium can flow in or out.
  • the cooling coils formed by the half pipes 16 and 19 are to be flowed through by the organic heat transfer medium, which also flows through the pipe registers 5 and 9.
  • the organic heat transfer medium also flows through the pipe registers 5 and 9.
  • circuits can be realized in which the heat transfer medium flows first through the tube register 5 and 9 and then through the cooling coils formed by the half tubes 16 and 19 or vice versa.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

A heat exchanger serving for the heating of an organic transfer liquid by combustion gases from a burner has a metallic housing in the shape of an upright cylinder with a widened upper part; the transfer liquid flows through an inner coil extending over nearly the full height of the housing and in series therewith through an outer coil surrounding the inner coil in the widened upper part. The two coils are enveloped by combustion gases, generated within or outside the housing, which rise from its bottom to the top inside the inner coil and then descend around the outer coil to an exit port provided near the lower end thereof. The top, bottom and upper cylinder part are overlain by conduits carrying a cooling fluid, preferably the same transfer liquid; in a preferred embodiment, these conduits are designed as half-pipes welded onto the outer housing surfaces to form cooling channels.

Description

Die Erfindung betrifft einen Wärmetauscher zur Aufheizung von insbesondere organischen Wärmeübertragungsmedien mit Hilfe von Verbrennungsgasen, bestehend aus einem Gehäuse mit Mantel, Boden und Deckel und wenigstens einem im Gehäuse untergebrachten Rohrregister, wobei das Gehäuse einen Wärmeschutz sowie einen Einlaß und einen Auslaß für die Verbrennungsabgase aufweist. Die Rauchgase können in einer separaten Brennkammer oder mit einem am Boden eingebauten Brenner erzeugt werden.The invention relates to a heat exchanger for heating, in particular, organic heat transfer media with the aid of combustion gases, consisting of a housing with a jacket, base and cover and at least one pipe register accommodated in the housing, the housing having thermal protection and an inlet and an outlet for the combustion exhaust gases. The flue gases can be generated in a separate combustion chamber or with a burner installed on the floor.

Derartige Wärmetauscher sind in verschiedenen Ausführungen bekannt. In der Regel besitzt der Mantel als Wärmeschutz eine Armierung oder Auskleidung aus keramischem Material, z.B. aus gemauerten feuerfesten Steinen. Daraus ergeben sich zunächst Probleme im Hinblick auf den konstruktiven Aufbau, weil die Ausmauerung einerseits und der metallische Mantel, der in der Regel aus Stahl besteht, andererseits sich bei Wärmebelastung unterschiedlich ausdehnen. Wenn in einem solchen Wärmetauscher ein organisches Wärmeübertragungsmedium verwendet wird, z.B. ein Thermalöl, muß außerdem darauf geachtet werden, daß dieses Wärmeübertragungsmedium nicht überhitzt wird. Während des Betriebes des Wärmetauschers ist das ohne weiteres möglich. Probleme ergeben sich aber beim Abschalten des Wärmetauschers bzw. der diesen aufweisenden Anlage, weil dann der Wärmeschutz bzw. die Ausmauerung des Mantels als Wärmespeicher wirkt und die darin gespeicherte Wärme auch nach dem Abschalten noch an das Wärmeübertragungsmedium abgibt. Das kann zu einer Überhitzung führen.Such heat exchangers are known in various designs. As a rule, the jacket has a reinforcement or lining made of ceramic material, for example, brick, refractory bricks as heat protection. This initially gives rise to problems with regard to the structural design, because the brick lining on the one hand and the metallic shell, which is usually made of steel, expand differently when exposed to heat. If an organic heat transfer medium, such as a thermal oil, is used in such a heat exchanger, it must also be used care is taken that this heat transfer medium is not overheated. This is easily possible during the operation of the heat exchanger. Problems arise, however, when the heat exchanger or the system having this is switched off, because then the heat protection or the lining of the jacket acts as a heat store and the heat stored therein also gives off to the heat transfer medium even after the system has been switched off. This can lead to overheating.

Aufgabe der Erfindung ist es, eine unerwünschte Nacherhitzung des Wärmeübertragungsmediums nach Abschalten der den Wärmetauscher aufweisenden Anlage zu vermeiden.The object of the invention is to avoid undesired reheating of the heat transfer medium after switching off the system having the heat exchanger.

Diese Aufgabe wird dadurch gelöst, daß außenseitig auf den Mantel, den Boden und den Deckel wenigstens bereichsweise von einem Kühlmedium durchströmte Kühlsysteme, z.B. aufgeschweißte Vollrohre, Kühlmäntel oder Halbrohre angeordnet sind, die mit ihren freien Rändern an den betreffenden Bauteilen befestigt sind.This object is achieved in that cooling systems through which a cooling medium flows, at least in regions, on the outside of the jacket, the bottom and the cover, e.g. welded full pipes, cooling jackets or half pipes are arranged, which are attached with their free edges to the relevant components.

Bei diesem Rekuperator kann auf eine Armierung, Ausmauerung od. dgl. vollständig verzichtet werden, weil die außenseitig auf dem Gehäuse angeordneten Kühlsysteme mit dem darin fließenden Kühlmedium den Wärmeschutz übernehmen. Abgesehen davon, daß bei einem derartigen Aufbau die konstruktiven Probleme im Hinblick auf wärmebedingte Dehnungen wesentlich besser beherrscht werden können, findet bei diesem Wärmetauscher auch nach dem Abschalten keine unerwünschte Nacherhitzung des Wärmeübertragungsmediums statt, weil das Gehäuse keine nennenswerte Wärmespeicherkapazität mehr besitzt.With this recuperator, reinforcement, brick lining or the like can be completely dispensed with, because the cooling systems arranged on the outside on the housing with the cooling medium flowing therein take over the heat protection. Apart from the fact that the constructional problems with regard to heat-related expansions can be controlled much better with such a structure, no undesired reheating of the heat transfer takes place in this heat exchanger even after it has been switched off supply medium instead, because the housing no longer has any significant heat storage capacity.

Bei Ausführung mit im Boden eingebautem Brenner wird durch diese Erfindung eine 100%-ige Umschließung der Flamme mit gekühlten Flächen und damit eine niedrigere Flammentemperatur gegenüber konventionellen Feuerraumkonstruktionen erreicht. Damit wird die mit höheren Verbrennungstemperaturen verbundene, umweltbelastende Stickoxydbelastung vermieden.In the case of a version with a burner installed in the floor, this invention achieves a 100% containment of the flame with cooled surfaces and thus a lower flame temperature compared to conventional combustion chamber designs. This avoids the environmentally harmful nitrogen oxide pollution associated with higher combustion temperatures.

Die Kühlsysteme, die mit ihren freien Rändern an den zugeordneten Bauteilen, d.h. Mantel, Deckel und Boden verschweißt sind, können insbesondere auf dem Deckel und dem Boden mäanderförmig, aber auch spiralförmig verlegt sein. Im übrigen empfiehlt sich eine Ausführung, bei der die Halbrohre auf dem Mantel als eine den Mantel umgebende Spirale verlegt sind. Diese Anordnung läßt sich auch im Hinblick auf unterschiedliche Wärmebelastung der einzelnen Gehäuseteile dadurch variieren, daß die Halbrohre auf dem Mantel als Spirale mit veränderlicher Steigung verlegt sind.The cooling systems, with their free edges on the assigned components, i.e. The jacket, cover and base are welded, in particular on the cover and base, they can be laid in a meandering shape, but also spirally. Otherwise, a version is recommended in which the half-tubes are laid on the jacket as a spiral surrounding the jacket. This arrangement can also be varied with regard to different thermal loads on the individual housing parts in that the half-tubes are laid on the jacket as a spiral with a variable pitch.

Dementsprechend wird man in Bereichen hoher Wärmebelastung die Spirale mit kleiner Steigung verlegen und in Bereichen mit geringerer Wärmebelastung die Spirale mit größerer Steigung verlegen.Accordingly, the spiral will be installed with a small pitch in areas with high thermal loads and the spiral with a larger pitch in areas with lower thermal loads.

Ausführungen mit Brenneranordnung oder Rauchgaseintritt im Boden und konzentrisch angeordneten Rohrschlangen sind dadurch gekennzeichnet, daß eine Umlenkung der Verbrennungsgase im Bereich des Deckels erfolgt. Die Rauchgase strömen anschließend durch die von den Rohrschlangen und dem gekühlten Mantel gebildeten Ringspalte zum Rundgasaustritt. Da die größte Wärmebelastung auf den Mantel des Wärmetauschers im Bereich der Rauchgasumlenkung stattfindet, sollte die Spirale der Kühlrohre in der Nähe des Deckels die kleinste Steigung aufweisen. Die übrigen Bereiche des Mantels brauchen weniger gekühlt werden, insbesondere kann eine Kühlung im Mantelbereich ohne Ringraum entfallen, weil hier die Kühlung von der an der Innenseite des Mantels anliegenden Rohrschlange übernommen wird.Versions with burner arrangement or flue gas inlet in the floor and concentrically arranged coils are characterized in that the combustion gases are deflected in the area of the cover. The flue gases then flow through the annular gaps formed by the coils and the cooled jacket to the round gas outlet. Since the greatest heat load on the jacket of the heat exchanger takes place in the area of the flue gas deflection, the spiral of the cooling pipes near the cover should have the smallest slope. The remaining areas of the jacket need to be cooled less, in particular cooling in the jacket area without an annular space can be dispensed with, because here the cooling is carried out by the pipe coil lying on the inside of the jacket.

Grundsätzlich ist es möglich, daß die Kühlrohre von einem gesonderten Kühlmedium durchströmt sind. Einfacher und erfindungsgemäß bevorzugt ist eine Ausführung, bei der die Kühlrohre vom Wärmeübertragungsmedium selbst durchströmt sind. Je nach den gegebenen Verhältnissen sind dann Schaltungen möglich, bei denen das Wärmeübertragungsmedium zunächst die Rohrregister und dann die Kühlrohre oder umgekehrt durchströmt.In principle, it is possible that a separate cooling medium flows through the cooling tubes. An embodiment in which the heat transfer medium flows through the cooling tubes themselves is simpler and preferred according to the invention. Depending on the prevailing conditions, circuits are then possible in which the heat transfer medium first flows through the pipe register and then through the cooling pipes or vice versa.

Im folgenden wird ein in der Zeichnung dargestelltes Ausführungsbeispiel der Erfindung erläutert; die einzige Figur zeigt, teilweise geschnitten, die Ansicht eines Wärmetauschers.In the following an embodiment of the invention shown in the drawing is explained; the only figure shows, partly in section, the view of a heat exchanger.

Der dargestellte Wärmetauscher dient zur Aufheizung von insbesondere organischen Wärmeübertragungsmedien mit Hilfe von Verbrennungsabgasen. Er besteht in seinem grundsätzlichen Aufbau aus einem zylindrischen Mantel 1 aus Stahl, der an seinen beiden Enden durch einen Deckel 2 und einen Boden 3 verschlossen ist.The heat exchanger shown is used to heat organic heat transfer media in particular with the aid of combustion exhaust gases. It exists in its basic structure of a cylindrical steel jacket 1, which is closed at both ends by a cover 2 and a bottom 3.

Im Mantel 1 ist ein Rohrregister 5 angeordnet, welches aus einer spiralig angeordneten Rohrschlange besteht, deren einzelne Windungen 6 dicht an dicht aufeinander sowie dicht an der Innenseite des Mantels 1 angeordnet sind. Das Rohrregister besitzt im Bereich des Bodens 3 die Zulaufstutzen 7 und erstreckt sich bis kurz vor den Deckel 2. Dort gehen die Windungen 6 in die Windungen 8 eines zweiten Rohrregisters 9 über, welches konzentrisch zum ersten Rohrregister und um dieses herum ebenfalls mit dicht an dicht liegenden Windungen 8 angeordnet ist. Das zweite Rohrregister 9 endet an einem Auslaufstutzen 15. Die Mantelerweiterung 12 erstreckt sich vom Deckel 2 bis etwa zur halben Länge des Mantels 1 und ist über einen Radialflansch 14 an den Mantel 1 angeschlossen.In the jacket 1, a pipe register 5 is arranged, which consists of a spirally arranged pipe coil, the individual turns 6 of which are arranged close to one another and close to the inside of the jacket 1. The pipe register has in the area of the bottom 3 the inlet connector 7 and extends to shortly before the cover 2. There, the turns 6 merge into the turns 8 of a second pipe register 9, which is concentric with the first pipe register and around it also with close to one another lying turns 8 is arranged. The second pipe register 9 ends at an outlet connection 15. The jacket extension 12 extends from the cover 2 to approximately half the length of the jacket 1 and is connected to the jacket 1 via a radial flange 14.

Kurz oberhalb des Radialflansches 14 ist an den Ringraum 13 ein Auslaßstutzen 10 für die Verbrennungsabgase angeschlossen. Die Verbrennungsabgase strömen folglich vom Einlaßstutzen 4 im Boden 3 zum Deckel 2, dort werden sie in den Ringraum 13 umgelenkt, den sie durch den Auslaßtstutzen 10 verlassen. Der Ringraum wird innenseitig von den dicht an dicht liegenden Windungen 6 des Rohrregisters 5 begrenzt.Shortly above the radial flange 14, an outlet connection 10 for the combustion exhaust gases is connected to the annular space 13. The combustion exhaust gases consequently flow from the inlet connection 4 in the base 3 to the cover 2, where they are deflected into the annular space 13, which they leave through the outlet connection 10. The annular space is delimited on the inside by the tightly lying turns 6 of the tube register 5.

Der Boden 3 weist EinlaBstutzen 4 für Verbrennungsabgase eines nicht dargestellten Brenners auf.The bottom 3 has inlet ports 4 for combustion gases of a burner, not shown.

Um die Wärmebelastung von Deckel 2 und Boden 3 in tragbaren Grenzen zu halten, sind außenseitig auf dem Deckel 2 und dem Boden 3 Kühlrohre verlegt. Es handelt sich dabei um Halbrohre 16, die mit ihren freien Rändern mit den Außenseiten von Deckel 2 bzw. Boden 3 verschweißt sind. Die Halbrohre 16 sind in Form von Mäandern auf dem Deckel 2 und dem Boden 3 verlegt. An den Enden der Kühlschlange befinden sich Anschlußstutzen 17 bzw. 18, über die das Kühlmedium zu- bzw. abgeführt werden kann.In order to keep the thermal load on cover 2 and base 3 within acceptable limits, cooling tubes are laid on the outside on cover 2 and base 3. These are half-tubes 16 which are welded with their free edges to the outside of cover 2 or base 3. The half pipes 16 are laid in the form of meanders on the cover 2 and the bottom 3. At the ends of the cooling coil there are connecting pieces 17 and 18, respectively, via which the cooling medium can be supplied or removed.

Auch die Mantelerweiterung 12 trägt außenseitig eine Kühlschlange in Form einer Spirale aus Halbrohren 19, die mit ihren freien Rändern mit der Außenseite der Mantelerweiterung 12 verschweißt sind. Die Spirale besitzt eine ungleichmäßige Steigung. Im Deckelbereich ist die Steigung klein, weil dort die Wärmebelastung wegen der Umlenkung der Verbrennungsabgase am größten ist. Die Steigung der Spirale wird zunehmend größer in Richtung auf den Radialflansch 14. Auch diese spiralige Kühlschlange besitzt Anschlußstutzen 20,21, durch die ein entsprechendes Kühlmedium zu- bzw. abströmen kann.The jacket extension 12 also has a cooling coil on the outside in the form of a spiral made from half-tubes 19, which are welded with their free edges to the outside of the jacket extension 12. The spiral has an uneven slope. The slope in the lid area is small because the heat load is greatest there due to the deflection of the combustion exhaust gases. The slope of the spiral becomes increasingly larger in the direction of the radial flange 14. This spiral cooling coil also has connecting pieces 20, 21 through which a corresponding cooling medium can flow in or out.

Nach bevorzugter Ausführung sollen die von den Halbrohren 16 bzw. 19 gebildeten Kühlschlangen von dem organischen Wärmeübertragungsmedium durchströmt sein, welches auch durch die Rohrregister 5 und 9 fließt. Je nach den gegebenen Umständen können dann Schaltungen verwirklicht werden, bei denen das Wärmeübertragungsmedium zunächst durch die Rohrregister 5 und 9 und dann durch die von den Halbrohren 16 bzw. 19 gebildeten Kühlschlangen fließt oder umgekehrt.According to a preferred embodiment, the cooling coils formed by the half pipes 16 and 19 are to be flowed through by the organic heat transfer medium, which also flows through the pipe registers 5 and 9. Depending on the circumstances then circuits can be realized in which the heat transfer medium flows first through the tube register 5 and 9 and then through the cooling coils formed by the half tubes 16 and 19 or vice versa.

Claims (8)

1. Wärmetauscher zur Aufheizung von insbesondere organischen Wärmeübertragungsmedien mit Hilfe von Verbrennungsabgasen, bestehend aus einem Gehäuse mit Mantel, Boden und Deckel und wenigstens einem im Gehäuse untergebrachten Rohrregister, wobei das Gehäuse einen Wärmeschutz sowie einen Einlaß und einen Auslaß für die Verbrennungsgase aufweist, dadurch gekennzeichnet, daß außenseitig auf dem Mantel (1,12), dem Boden (3) und dem Deckel (2) Kühlsysteme wie z.B. angeschweißte Vollrohre, Kühlmäntel oder Halbrohre angeordnet sind, die mit ihren freien Rändern auf den betreffenden Bauteilen befestigt sind.1. Heat exchanger for heating, in particular, organic heat transfer media with the aid of combustion exhaust gases, consisting of a housing with a jacket, base and cover and at least one pipe register accommodated in the housing, the housing having thermal insulation and an inlet and an outlet for the combustion gases, characterized in that that on the outside on the jacket (1,12), the bottom (3) and the cover (2) cooling systems such as welded full pipes, cooling jackets or half pipes are arranged, which are attached with their free edges to the relevant components. 2. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß die Kühlsysteme (16) auf dem Deckel (2) und dem Boden (3) mäanderförmig verlegt sind.2. Heat exchanger according to claim 1, characterized in that the cooling systems (16) on the cover (2) and the bottom (3) are laid in a meandering shape. 3. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß die Kühlsysteme (16) auf dem Deckel (2) und dem Boden (3) spiralförmig verlegt sind.3. Heat exchanger according to claim 1, characterized in that the cooling systems (16) on the cover (2) and the bottom (3) are laid spirally. 4. Wärmetauscher nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Halbrohre oder Vollrohre (16) auf dem Mantel (1,12) als eine den Mantel (1,12) umgebende Spirale verlegt sind.4. Heat exchanger according to one of claims 1 to 3, characterized in that the half pipes or full pipes (16) on the jacket (1,12) are laid as a spiral surrounding the jacket (1,12). 5. Wärmetauscher nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Halbrohre oder Vollrohre (19) auf dem Mantel (1,12) als Spirale mit sich verändernder Steigung verlegt sind.5. Heat exchanger according to one of claims 1 to 4, characterized in that the half pipes or full pipes (19) on the jacket (1,12) are laid as a spiral with a changing slope. 6. Wärmetauscher nach Anspruch 5, dadurch gekennzeichnet, daß die Spirale der Kühlrohre in der Nähe des Deckels (2) die kleinste Steigung aufweist.6. Heat exchanger according to claim 5, characterized in that the spiral of the cooling tubes in the vicinity of the cover (2) has the smallest slope. 7. Wärmetauscher nach einem der Ansprüche 1 bis 6, mit einem Einlaß im Boden und wenigstens zwei konzentrisch zueinander angeordneten Rohrregistern, dadurch gekennzeichnet, daß zwischen den beiden Rohrregistern (5,9) sowie zwischen der Rohrschlange (9) und dem Mantel (12) Ringspalte gebildet werden, die an den Rauchgasaustritt (10) anschließen.7. Heat exchanger according to one of claims 1 to 6, with an inlet in the bottom and at least two concentrically arranged pipe registers, characterized in that between the two pipe registers (5,9) and between the coil (9) and the jacket (12) Annular gaps are formed, which connect to the flue gas outlet (10). 8. Wärmetauscher nach einem der Ansprüche 1 bis 7, gekennzeichnet durch einen in den Boden eingebauten Brenner.8. Heat exchanger according to one of claims 1 to 7, characterized by a burner installed in the bottom.
EP84107158A 1983-07-06 1984-06-22 Heat exchanger for heating organic heat exchange media Expired EP0131187B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84107158T ATE32258T1 (en) 1983-07-06 1984-06-22 HEAT EXCHANGER FOR HEATING ORGANIC HEAT TRANSFER MEDIA.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8319454U 1983-07-06
DE19838319454U DE8319454U1 (en) 1983-07-06 1983-07-06 HEAT EXCHANGER FOR HEATING IN PARTICULAR ORGANIC HEAT TRANSFER MEDIA

Publications (3)

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EP0131187A2 true EP0131187A2 (en) 1985-01-16
EP0131187A3 EP0131187A3 (en) 1985-05-15
EP0131187B1 EP0131187B1 (en) 1988-01-27

Family

ID=6754894

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EP84107158A Expired EP0131187B1 (en) 1983-07-06 1984-06-22 Heat exchanger for heating organic heat exchange media

Country Status (4)

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US (1) US4556104A (en)
EP (1) EP0131187B1 (en)
AT (1) ATE32258T1 (en)
DE (2) DE8319454U1 (en)

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WO1991003295A1 (en) * 1989-09-06 1991-03-21 Hans Fuglede Method for fractional condensation of acid combustion gas components and apparatus for executing the method
NL1035252C2 (en) * 2008-04-03 2009-10-06 Otte Holding B V M Device for collecting used tap water and / or rain water and a system for extracting residual heat from it.

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US6435174B1 (en) 2000-10-31 2002-08-20 Siout Steam Cleaner Corporation Fluid heater coil configuration and fabrication method
US6561183B1 (en) 2000-10-31 2003-05-13 Sioux Steam Cleaner Corporation Fluid heater system with tiltable heater assembly
NZ542600A (en) * 2003-03-28 2007-05-31 Siddons Stevens Developments P Water heater/cooler with heat-conductive material between tube and wall of tank, and layer of material wrapped about tank in airtight manner
BE1016897A3 (en) * 2005-12-16 2007-09-04 Bilteryst Pierre Jean Edgard C Geothermal energy collection installation for terrestrial crust, has tubular system with descending perimetric coil whose turns are connected to ascending rectilinear axial column, where installation forms boiler well
US20120125595A1 (en) 2010-11-19 2012-05-24 Siemens S.A. de C.V. Exhaust duct having modular, multi zone, spirally arrayed cooling coils and method for cooling
US8438864B2 (en) * 2011-03-04 2013-05-14 General Electric Company Transcritical heat pump water heater and method of operation
JP6834772B2 (en) * 2017-05-22 2021-02-24 株式会社ノーリツ Hot water device
US11920873B2 (en) 2018-10-09 2024-03-05 Linde Gmbh Wound heat exchanger, method for producing a wound heat exchanger and method for exchanging heat between a first fluid and a second fluid
CN114413657A (en) * 2021-12-23 2022-04-29 合肥通用机械研究院有限公司 Matrix type high-temperature gas cooler

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WO1991003295A1 (en) * 1989-09-06 1991-03-21 Hans Fuglede Method for fractional condensation of acid combustion gas components and apparatus for executing the method
NL1035252C2 (en) * 2008-04-03 2009-10-06 Otte Holding B V M Device for collecting used tap water and / or rain water and a system for extracting residual heat from it.
WO2009123458A1 (en) * 2008-04-03 2009-10-08 M. Otte Holding B.V. Device for collecting used tap water and/or rainwater and system for recovering residual heat therefrom

Also Published As

Publication number Publication date
DE3469056D1 (en) 1988-03-03
ATE32258T1 (en) 1988-02-15
US4556104A (en) 1985-12-03
EP0131187A3 (en) 1985-05-15
EP0131187B1 (en) 1988-01-27
DE8319454U1 (en) 1983-12-29

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