EP2192367B1 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
EP2192367B1
EP2192367B1 EP20090012442 EP09012442A EP2192367B1 EP 2192367 B1 EP2192367 B1 EP 2192367B1 EP 20090012442 EP20090012442 EP 20090012442 EP 09012442 A EP09012442 A EP 09012442A EP 2192367 B1 EP2192367 B1 EP 2192367B1
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EP
European Patent Office
Prior art keywords
heat exchanger
fluid
spiral
channels
channel
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EP20090012442
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German (de)
French (fr)
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EP2192367A2 (en
EP2192367A3 (en
Inventor
Hans Klingenburg
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Klingenburg GmbH
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Klingenburg GmbH
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Publication of EP2192367A3 publication Critical patent/EP2192367A3/en
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    • 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
    • F28D7/022—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 two or more media in heat-exchange relationship being helically coiled, the coils having a cylindrical configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/08—Fluid driving means, e.g. pumps, fans

Definitions

  • the invention relates to a heat exchanger according to the preamble of patent claim 1.
  • a heat exchange device in which a first fluid channel, which can be traversed by a first fluid, and a second fluid channel are provided, which can be traversed by a second fluid.
  • the two fluid channels are formed in opposite directions spiral.
  • the first fluid channel is in each turn of the spiral formed by the fluid channels of the heat exchange device on its upper and on its lower wall surface on the lower or upper wall of the second fluid channel.
  • both fluid channels are provided with part-circular walls in cross-section. This has the consequence that the flat contact in the radial direction of the spiral is not guaranteed over the entire radial dimension of the fluid channels.
  • the invention has the object, the detailed heat exchanger described in detail in such a way that its efficiency is considerably increased.
  • the fluid channels of the heat exchanger according to the invention each have a rectangular flow cross-section.
  • the two different fluid-carrying fluid channels, in each case over their complete radial dimension, are in planar contact with one another at their lower and upper sides.
  • the heat exchanger according to the invention is as compact as possible, has the highest possible efficiency and the lowest possible operating noise, wherein the heat exchanger is also both quantitatively and qualitatively easily adaptable to different requirement profiles and with a relatively small technical and design effort can be mounted.
  • the spiral formed by the fluid channels has a circular, oval or otherwise suitably rounded cross-section.
  • the width of the flow cross-section of the fluid channels is many times, e.g. five to twenty times larger than their height.
  • the contact surfaces occupy a high proportion of the entire circumferential surfaces of the fluid channels.
  • the fluid channels can be inserted into one another to form the spiral.
  • At one end of the coil of the heat exchanger may advantageously be arranged, the inlet opening of the second fluid channel and at the other end of the coil of the heat exchanger, the inlet opening of the second fluid channel.
  • a first fan is arranged, by means of which the first fluid in the inlet opening of the first fluid channel can be introduced, wherein moreover expediently be arranged at the other end of the coil of the heat exchanger, a second fan should, by means of which the second fluid can be introduced into the inlet opening of the second fluid channel.
  • the outlet opening of the second fluid channel should be arranged and designed so that the first fluid exits in the radial direction of the spiral of the heat exchanger.
  • a particularly compact and easily manageable design of the heat exchanger according to the invention can be achieved if the diameter of the first fan and / or the second fan corresponds to the diameter of the coil of the heat exchanger and the coil of the heat exchanger and the first fan and / or the second fan arranged coaxially with each other are.
  • the compact design of the heat exchanger according to the invention is further supported if a drive means of the first fan and / or a drive means of the second fan is or are at least partially disposed in a hollow hub region of the spiral of the heat exchanger.
  • the spiral of the heat exchanger according to the invention may expediently be formed from aluminum or a suitable plastic.
  • top and bottom walls of the fluid channels are unplaned, e.g. corrugated, are formed.
  • each fluid channel is formed as a channel packet of a plurality of parallel and spaced apart channels, wherein between the channels of the channel packet of the first fluid channel in each case a channel of a corresponding channel packet of the second fluid channel is arranged and wherein the inlet openings and the outlet openings the two fluid channels is formed by a number of the number of channels corresponding number of inlet and outlet slots.
  • An embodiment of a heat exchanger 1 according to the invention, shown in principle in FIG. 1, has a cylindrical overall design.
  • the heat exchanger 1 is divided into a spiral 2, a first fan 3 arranged at the top in the single figure and a second fan 4 shown at the bottom in the figure.
  • the first fan 3 is shown in a position spaced from the coil 2 of the heat exchanger.
  • the first fan 3 at the upper one end 5 of the spiral 2 is arranged as the lower in the figure second fan 4 at the lower other end 6 of the spiral second
  • both the spiral 2 of the heat exchanger 1 and the two fans 3, 4 have a circular cross-section, wherein the spiral 2 and the two fans 4, 5 are arranged coaxially to each other.
  • an exit surface 7 of the first fan 3 abuts a radially disposed end surface 8 at the upper one end 5 of the scroll 2
  • an exit surface 9 of the lower second fan 4 in the figure abuts an end surface 10 of the lower other end 6 of the spiral 2 is present.
  • a first fluid channel 12 of the heat exchanger 1, which runs through the spiral 2, is formed in the illustrated embodiment as a channel packet 12 of a plurality of channels 13.
  • the channel pack 12 or its channels 13 have in the figure not visible inlet slots, which together form a likewise not visible in the figure inlet opening of the first fluid channel 12, which is formed in the end face 8 at the upper one end 5 of the spiral 2.
  • the channels 13 of the first fluid channel 12 and of the channel packet 12 are arranged at a distance and parallel to one another.
  • a number of the channels 13 corresponding number of outlet slots 15 are provided, by means of which the channels 13 open in the radial direction of the spiral 2.
  • the outlet slots 15 in their entirety form an outlet opening 14 of the first fluid channel or of the channel packet 12 forming it.
  • the channels 18 of the second fluid channel 19 forming channel packet are arranged parallel to each other and at a distance.
  • the visible in the figure end face 10 of the lower other end 6 of the scroll 2 is formed by inlet slots 20 of the channels 18 of the second fluid channel 19, which through the closed ends of the channels 13 of the first fluid channel 12th are separated from each other.
  • the inlet slots 20 of the channels 18 in their entirety form the inlet opening 21 of the second fluid channel 19.
  • outlet slots 22 of the channels 18 forming the second fluid channel 19 are provided which open in the radial direction of the spiral 2.
  • the outlet slots 22 in their entirety form the outlet opening 23 of the second fluid channel 19 formed by the second channel packet.
  • Each individual channel 13 of the first fluid channel 12 abuts with its upper wall against the lower wall of an adjacent channel 18 of the second fluid channel 19. With its bottom wall, each channel 13 of the first fluid channel 12 abuts an upper wall of an adjacent channel 18 of the second fluid channel 19.
  • each channel 13, 18 is significantly greater than its height 17.
  • the top and bottom walls of each channel are significantly larger than its side walls, with the result that each channel 13, 18 with a large proportion of its outer surface to the adjacent Channels 18, 13 is applied.
  • the fluid channels 12, 19 and the channel packets forming channels 13, 18 are formed in opposite directions spiral.
  • a first fluid 24 is introduced into the channels 13 of the first fluid channel 12 through the inlet slots, not shown in the drawing, on the end face 8 at the upper one end 5 of the spiral 2.
  • a second fluid 25 through the inlet slots 20 of the channels 18 are introduced into the second fluid channel 19.
  • the first fluid which is shown in the figure by the white arrow representations, flows through the spiral 2 in the downward direction.
  • the second fluid 25 which is shown in the figure by the black arrow representations, the spiral 2 in the upward direction.
  • the temperature difference between the two fluids 24, 25 is almost constant in the entire region of the spiral 2, since the first fluid 24 then enters the spiral 2 when the second fluid 25 emerges from the spiral 2. This results in maximizing the efficiency of the heat exchanger shown in the single figure.
  • the spiral 2 of the heat exchanger 1 may be formed of aluminum or of a suitable plastic.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

Die Erfindung bezieht sich auf einen Wärmeaustauscher nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a heat exchanger according to the preamble of patent claim 1.

Aus der JP 2003148880 A ist eine Wärmeaustauschvorrichtung bekannt, bei der ein erster Fluidkanal, der von einem ersten Fluid durchströmbar ist, und ein zweiter Fluidkanal vorgesehen sind, der von einem zweiten Fluid durchströmbar ist. Die beiden Fluidkanäle sind gegenläufig spiralförmig ausgebildet. Der erste Fluidkanal liegt in jeder Windung der durch die Fluidkanäle gebildeten Spirale der Wärmeaustauschvorrichtung an seiner Ober- und an seiner Unterwand flächig an der Unter- bzw. Oberwand des zweiten Fluidkanals an.From the JP 2003148880 A a heat exchange device is known in which a first fluid channel, which can be traversed by a first fluid, and a second fluid channel are provided, which can be traversed by a second fluid. The two fluid channels are formed in opposite directions spiral. The first fluid channel is in each turn of the spiral formed by the fluid channels of the heat exchange device on its upper and on its lower wall surface on the lower or upper wall of the second fluid channel.

An ihren - in Bezug auf die Spirale - radial inneren und radial äußeren Begrenzungsflächen sind beide Fluidkanäle mit im Querschnitt teilkreisförmigen Wandungen versehen. Dies hat zur Folge, dass die flächige Anlage in Radialrichtung der Spirale nicht über die gesamte Radialabmessung der Fluidkanäle gewährleistet ist.At their - with respect to the spiral - radially inner and radially outer boundary surfaces both fluid channels are provided with part-circular walls in cross-section. This has the consequence that the flat contact in the radial direction of the spiral is not guaranteed over the entire radial dimension of the fluid channels.

Ausgehend von dem vorstehend geschilderten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, den eingehend geschilderten gattungsgemäßen Wärmeaustauscher derart weiterzubilden, dass sein Wirkungsgrad erheblich erhöht ist.Based on the above-described prior art, the invention has the object, the detailed heat exchanger described in detail in such a way that its efficiency is considerably increased.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Fluidkanäle des erfindungsgemäßen Wärmeaustauschers jeweils einen rechteckigen Strömungsquerschnitt aufweisen. Durch die erfindungsgemäße Ausgestaltung wird erreicht, dass die beiden unterschiedliche Fluide führenden Fluidkanäle jeweils über ihre vollständige Radialabmessung an ihren Unter- und Oberseiten sich in flächiger Anlage aneinander befinden.This object is achieved in that the fluid channels of the heat exchanger according to the invention each have a rectangular flow cross-section. As a result of the embodiment according to the invention, it is achieved that the two different fluid-carrying fluid channels, in each case over their complete radial dimension, are in planar contact with one another at their lower and upper sides.

Der erfindungsgemäße Wärmeaustauscher ist möglichst kompakt, hat einen möglichst hohen Wirkungsgrad und möglichst geringe Betriebsgeräusche, wobei der Wärmeaustauscher darüber hinaus sowohl quantitativ als auch qualitativ leicht an unterschiedliche Anforderungsprofile anpassbar und mit einem vergleichsweise geringen technisch-konstruktiven Aufwand montierbar ist.The heat exchanger according to the invention is as compact as possible, has the highest possible efficiency and the lowest possible operating noise, wherein the heat exchanger is also both quantitatively and qualitatively easily adaptable to different requirement profiles and with a relatively small technical and design effort can be mounted.

Durch die möglichst großflächige Anlage zwischen den Ober-bzw. Unterwänden der Fluidkanäle ergibt sich eine im Vergleich zu aus dem Stand der Technik bekannten Wärmeaustauschern erhebliche akustische Dämpfung, so dass die Betriebsgeräusche erheblich reduziert werden können. Durch den Aufbau in Form einer Spirale ergibt sich bei vergleichsweise geringem Raumbedarf eine hohe Kontaktlänge in Strömungsrichtung der beiden Fluide, wodurch der Wirkungsgrad des erfindungsgemäßen Wärmeaustauschers vergleichsweise hoch ist, bei sehr kompakter Gestaltung des Wärmeaustauschers.By the largest possible system between the upper and. Underwalls of the fluid channels results in comparison to known from the prior art heat exchangers considerable acoustic damping, so that the operating noise can be significantly reduced. The construction in the form of a spiral results in a comparatively small space requirement, a high contact length in the flow direction of the two fluids, whereby the efficiency of the heat exchanger according to the invention is comparatively high, with a very compact design of the heat exchanger.

Gemäß vorteilhafter Ausführungsformen weist die Spirale, die durch die Fluidkanäle gebildet wird, einen kreisförmigen, ovalen oder in anderer geeigneter Weise abgerundeten Querschnitt auf.According to advantageous embodiments, the spiral formed by the fluid channels has a circular, oval or otherwise suitably rounded cross-section.

Die Breite des Strömungsquerschnitts der Fluidkanäle ist um ein Vielfaches, z.B. um ein Fünf- bis Zwanzigfaches, größer ist als ihre Höhe. Hierdurch nehmen die Kontaktflächen einen hohen Anteil der gesamten Umfangsflächen der Fluidkanäle ein.The width of the flow cross-section of the fluid channels is many times, e.g. five to twenty times larger than their height. As a result, the contact surfaces occupy a high proportion of the entire circumferential surfaces of the fluid channels.

Gemäß einer vorteilhaften Ausführungsform des erfindungsgemäßen Wärmeaustauschers können die Fluidkanäle zur Ausbildung der Spirale ineinander gesteckt werden.According to an advantageous embodiment of the heat exchanger according to the invention, the fluid channels can be inserted into one another to form the spiral.

Am einen Ende der Spirale des Wärmeaustauschers kann vorteilhaft die Einlassöffnung des ersten Fluidkanals und am anderen Ende der Spirale des Wärmeaustauschers die Einlassöffnung des zweiten Fluidkanals angeordnet sein. Darüber hinaus ist es zweckmäßig, wenn am einen Ende der Spirale des Wärmeaustauschers ein erster Lüfter angeordnet ist, mittels dem das erste Fluid in die Einlassöffnung des ersten Fluidkanals einleitbar ist, wobei darüber hinaus zweckmäßigerweise am anderen Ende der Spirale des Wärmeaustauschers ein zweiter Lüfter angeordnet sein sollte, mittels dem das zweite Fluid in die Einlassöffnung des zweiten Fluidkanals einleitbar ist.At one end of the coil of the heat exchanger may advantageously be arranged, the inlet opening of the second fluid channel and at the other end of the coil of the heat exchanger, the inlet opening of the second fluid channel. Moreover, it is expedient if at one end of the coil of the heat exchanger, a first fan is arranged, by means of which the first fluid in the inlet opening of the first fluid channel can be introduced, wherein moreover expediently be arranged at the other end of the coil of the heat exchanger, a second fan should, by means of which the second fluid can be introduced into the inlet opening of the second fluid channel.

Um eine möglichst wirksame Trennung der beiden Fluidströme voneinander zu gewährleisten, sollte am einen Ende der Spirale des Wärmeaustauschers die Auslassöffnung des zweiten Fluidkanals so angeordnet und ausgebildet sein, dass das zweite Fluid in Radialrichtung aus der Spirale des Wärmeaustauschers austritt, wobei vorteilhaft am anderen Ende der Spirale des Wärmeaustauschers die Auslassöffnung des ersten Fluidkanals so angeordnet und ausgebildet sein sollte, dass das erste Fluid in Radialrichtung aus der Spirale des Wärmeaustauschers austritt.In order to ensure the most effective separation of the two fluid streams from each other, should be arranged and formed at one end of the coil of the heat exchanger, the outlet opening of the second fluid channel, that the second fluid in the radial direction from the coil of the heat exchanger exits, advantageously at the other end of the Spiral of the heat exchanger, the outlet opening of the first fluid channel should be arranged and designed so that the first fluid exits in the radial direction of the spiral of the heat exchanger.

Eine besonders kompakte und leicht handhabbare Gestaltung des erfindungsgemäßen Wärmeaustauschers ist erreichbar, wenn der Durchmesser des ersten Lüfters und/oder des zweiten Lüfters dem Durchmesser der Spirale des Wärmeaustauschers entspricht und die Spirale des Wärmeaustauschers und der erste Lüfter und/oder der zweite Lüfter koaxial zueinander angeordnet sind.A particularly compact and easily manageable design of the heat exchanger according to the invention can be achieved if the diameter of the first fan and / or the second fan corresponds to the diameter of the coil of the heat exchanger and the coil of the heat exchanger and the first fan and / or the second fan arranged coaxially with each other are.

Darüber hinaus wird die kompakte Gestaltung des erfindungsgemäßen Wärmeaustauschers dann weiter unterstützt, wenn eine Antriebseinrichtung des ersten Lüfters und/oder eine Antriebseinrichtung des zweiten Lüfters zumindest teilweise in einem Hohlnabenbereich der Spirale des Wärmeaustauschers angeordnet ist bzw. sind.In addition, the compact design of the heat exchanger according to the invention is further supported if a drive means of the first fan and / or a drive means of the second fan is or are at least partially disposed in a hollow hub region of the spiral of the heat exchanger.

Die Spirale des erfindungsgemäßen Wärmeaustauschers kann zweckmäßigerweise aus Aluminium oder einem geeigneten Kunststoff ausgebildet sein.The spiral of the heat exchanger according to the invention may expediently be formed from aluminum or a suitable plastic.

Wenn besonders turbulente Strömungsverhältnisse in den Fluidkanälen des Wärmeaustauschers angestrebt sind, ist es vorteilhaft, wenn die Ober- und die Unterwände der Fluidkanäle unplan, z.B. gewellt, ausgebildet sind.When particularly turbulent flow conditions are desired in the fluid channels of the heat exchanger, it is advantageous if the top and bottom walls of the fluid channels are unplaned, e.g. corrugated, are formed.

Gemäß einer besonders vorteilhaften Ausführungsform des erfindungsgemäßen Wärmeaustauschers ist jeder Fluidkanal als Kanalpaket aus mehreren parallelen und zueinander beabstandeten Kanälen ausgebildet, wobei zwischen den Kanälen des Kanalpakets des ersten Fluidkanals jeweils ein Kanal eines entsprechenden Kanalpakets des zweiten Fluidkanals angeordnet ist und wobei die Einlassöffnungen und die Auslassöffnungen der beiden Fluidkanäle durch eine der Anzahl der Kanäle entsprechende Anzahl von Einlass- bzw. Auslassschlitzen gebildet ist.According to a particularly advantageous embodiment of the heat exchanger according to the invention, each fluid channel is formed as a channel packet of a plurality of parallel and spaced apart channels, wherein between the channels of the channel packet of the first fluid channel in each case a channel of a corresponding channel packet of the second fluid channel is arranged and wherein the inlet openings and the outlet openings the two fluid channels is formed by a number of the number of channels corresponding number of inlet and outlet slots.

Im Folgenden wird die Erfindung anhand einer Ausführungsform unter Bezugnahme auf die Zeichnung näher erläutert, deren einzige Figur eine Prinzipdarstellung eines erfindungsgemäßen Wärmeaustauschers zeigt.In the following the invention will be explained in more detail with reference to an embodiment with reference to the drawing, the single figure shows a schematic diagram of a heat exchanger according to the invention.

Eine in Figur 1 prinzipiell dargestellte Ausführungsform eines erfindungsgemäßen Wärmeaustauschers 1 ist insgesamt zylindrisch gestaltet.An embodiment of a heat exchanger 1 according to the invention, shown in principle in FIG. 1, has a cylindrical overall design.

Der Wärmeaustauscher 1 gliedert sich in eine Spirale 2, einen in der einzigen Figur oben angeordneten ersten Lüfter 3 und einen in der Figur unten gezeigten zweiten Lüfter 4.The heat exchanger 1 is divided into a spiral 2, a first fan 3 arranged at the top in the single figure and a second fan 4 shown at the bottom in the figure.

In der einzigen Figur ist aus Anschaulichkeitsgründen der erste Lüfter 3 in einer zur Spirale 2 des Wärmeaustauschers beabstandeten Position gezeigt. Bei vollständig montiertem Wärmeaustauscher 1 ist der erste Lüfter 3 am oberen einen Ende 5 der Spirale 2 so angeordnet, wie der in der Figur untere zweite Lüfter 4 am unteren anderen Ende 6 der Spirale 2.In the single figure, for reasons of clarity, the first fan 3 is shown in a position spaced from the coil 2 of the heat exchanger. When fully installed heat exchanger 1, the first fan 3 at the upper one end 5 of the spiral 2 is arranged as the lower in the figure second fan 4 at the lower other end 6 of the spiral second

Im dargestellten Ausführungsbeispiel haben sowohl die Spirale 2 des Wärmeaustauschers 1 als auch die beiden Lüfter 3, 4 einen kreisförmigen Querschnitt, wobei die Spirale 2 und die beiden Lüfter 4, 5 koaxial zueinander angeordnet sind. Im montierten Zustand liegt eine Austrittfläche 7 des ersten Lüfters 3 an einer radial angeordneten Endfläche 8 am oberen einen Ende 5 der Spirale 2 an, wohingegen eine Austrittfläche 9 des in der Figur unteren zweiten Lüfters 4 an einer Endfläche 10 des unteren anderen Endes 6 der Spirale 2 anliegt.In the illustrated embodiment, both the spiral 2 of the heat exchanger 1 and the two fans 3, 4 have a circular cross-section, wherein the spiral 2 and the two fans 4, 5 are arranged coaxially to each other. In the mounted state, an exit surface 7 of the first fan 3 abuts a radially disposed end surface 8 at the upper one end 5 of the scroll 2, whereas an exit surface 9 of the lower second fan 4 in the figure abuts an end surface 10 of the lower other end 6 of the spiral 2 is present.

In der einzigen Figur nicht gezeigte Antriebseinrichtungen des ersten Lüfters 3 und des zweiten Lüfters 4 sind innerhalb eines durch die Spirale 2 des Wärmeaustauschers 1 gebildeten Hohlnabenbereichs 11 angeordnet.Drive devices, not shown in the single figure, of the first fan 3 and the second fan 4 are arranged within a hollow hub region 11 formed by the spiral 2 of the heat exchanger 1.

Ein erster Fluidkanal 12 des Wärmeaustauschers 1, der durch die Spirale 2 verläuft, ist im dargestellten Ausführungsbeispiel als Kanalpaket 12 aus einer Vielzahl Kanäle 13 gebildet. Das Kanalpaket 12 bzw. dessen Kanäle 13 haben in der Figur nicht sichtbare Einlassschlitze, die gemeinsam eine in der Figur ebenfalls nicht sichtbare Einlassöffnung des ersten Fluidkanals 12 bilden, die in der Endfläche 8 am oberen einen Ende 5 der Spirale 2 ausgebildet ist. Die Kanäle 13 des ersten Fluidkanals 12 bzw. des Kanalpakets 12 sind mit Abstand und parallel zueinander angeordnet. Am unteren anderen Ende 6 der Spirale 2 sind eine der Anzahl der Kanäle 13 entsprechende Anzahl von Auslassschlitzen 15 vorgesehen, mittels denen sich die Kanäle 13 in Radialrichtung der Spirale 2 öffnen. Die Auslassschlitze 15 bilden in ihrer Gesamtheit eine Auslassöffnung 14 des ersten Fluidkanals bzw. des diesen bildenden Kanalpakets 12.A first fluid channel 12 of the heat exchanger 1, which runs through the spiral 2, is formed in the illustrated embodiment as a channel packet 12 of a plurality of channels 13. The channel pack 12 or its channels 13 have in the figure not visible inlet slots, which together form a likewise not visible in the figure inlet opening of the first fluid channel 12, which is formed in the end face 8 at the upper one end 5 of the spiral 2. The channels 13 of the first fluid channel 12 and of the channel packet 12 are arranged at a distance and parallel to one another. At the lower other end 6 of the spiral 2, a number of the channels 13 corresponding number of outlet slots 15 are provided, by means of which the channels 13 open in the radial direction of the spiral 2. The outlet slots 15 in their entirety form an outlet opening 14 of the first fluid channel or of the channel packet 12 forming it.

Zwischen den einzelnen Kanälen 13 des ersten Fluidkanals 12 sind entsprechend gestaltete Kanäle 18 ausgebildet, die einen zweiten Fluidkanal 19 des Wärmeaustauschers 1 bilden. Auch die Kanäle 18 des den zweiten Fluidkanal 19 ausbildenden Kanalpakets sind parallel und mit Abstand zueinander angeordnet. Die in der Figur sichtbare Endfläche 10 des unteren anderen Endes 6 der Spirale 2 wird durch Einlassschlitze 20 der Kanäle 18 des zweiten Fluidkanals 19 gebildet, die durch die geschlossenen Enden der Kanäle 13 des ersten Fluidkanals 12 voneinander getrennt sind. Die Einlassschlitze 20 der Kanäle 18 bilden in ihrer Gesamtheit die Einlassöffnung 21 des zweiten Fluidkanals 19.Between the individual channels 13 of the first fluid channel 12 correspondingly shaped channels 18 are formed, which form a second fluid channel 19 of the heat exchanger 1. Also, the channels 18 of the second fluid channel 19 forming channel packet are arranged parallel to each other and at a distance. The visible in the figure end face 10 of the lower other end 6 of the scroll 2 is formed by inlet slots 20 of the channels 18 of the second fluid channel 19, which through the closed ends of the channels 13 of the first fluid channel 12th are separated from each other. The inlet slots 20 of the channels 18 in their entirety form the inlet opening 21 of the second fluid channel 19.

Im Bereich des oberen einen Endes 5 der Spirale 2 sind in deren Umfangsfläche analog zu der Gestaltung am unteren anderen Ende 6 Auslassschlitze 22 der den zweiten Fluidkanal 19 bildenden Kanäle 18 vorgesehen, die sich in Radialrichtung der Spirale 2 öffnen. Die Auslassschlitze 22 bilden in ihrer Gesamtheit die Auslassöffnung 23 des durch das zweite Kanalpaket gebildeten zweiten Fluidkanals 19.In the region of the upper one end 5 of the spiral 2, in the peripheral surface thereof, analogous to the design at the lower other end 6, outlet slots 22 of the channels 18 forming the second fluid channel 19 are provided which open in the radial direction of the spiral 2. The outlet slots 22 in their entirety form the outlet opening 23 of the second fluid channel 19 formed by the second channel packet.

Jeder einzelne Kanal 13 des ersten Fluidkanals 12 liegt mit seiner Oberwand gegen die Unterwand eines benachbarten Kanals 18 des zweiten Fluidkanals 19 an. Mit seiner Unterwand liegt jeder Kanal 13 des ersten Fluidkanals 12 an einer Oberwand eines benachbarten Kanals 18 des zweiten Fluidkanals 19 an.Each individual channel 13 of the first fluid channel 12 abuts with its upper wall against the lower wall of an adjacent channel 18 of the second fluid channel 19. With its bottom wall, each channel 13 of the first fluid channel 12 abuts an upper wall of an adjacent channel 18 of the second fluid channel 19.

Die Breite 16 jedes Kanals 13, 18 ist erheblich größer als seine Höhe 17. Dadurch sind die Ober- und Unterwand jedes Kanals erheblich größer als seine Seitenwände, mit der Folge, dass jeder Kanal 13, 18 mit einem großen Anteil seiner Außenfläche an den benachbarten Kanälen 18, 13 anliegt.The width 16 of each channel 13, 18 is significantly greater than its height 17. Thus, the top and bottom walls of each channel are significantly larger than its side walls, with the result that each channel 13, 18 with a large proportion of its outer surface to the adjacent Channels 18, 13 is applied.

Die Fluidkanäle 12, 19 bzw. die deren Kanalpakete ausbildenden Kanäle 13, 18 sind gegenläufig spiralförmig ausgebildet.The fluid channels 12, 19 and the channel packets forming channels 13, 18 are formed in opposite directions spiral.

Mittels des ersten Lüfters 3 wird ein erstes Fluid 24 durch die in der Zeichnung nicht gezeigten Einlassschlitze auf der Endfläche 8 am oberen einen Ende 5 der Spirale 2 in die Kanäle 13 des ersten Fluidkanals 12 eingeleitet. Entsprechend wird durch den zweiten Lüfter 4 ein zweites Fluid 25 durch die Einlassschlitze 20 der Kanäle 18 in den zweiten Fluidkanal 19 eingeleitet. Das erste Fluid, welches in der Figur durch die weißen Pfeildarstellungen gezeigt ist, durchströmt die Spirale 2 in abwärtiger Richtung. Entsprechend durchströmt das zweite Fluid 25, welches in der Figur durch die schwarzen Pfeildarstellungen gezeigt ist, die Spirale 2 in aufwärtiger Richtung. Der Temperaturunterschied zwischen den beiden Fluiden 24, 25 ist im gesamten Bereich der Spirale 2 nahezu konstant, da das erste Fluid 24 dann in die Spirale 2 eintritt, wenn das zweite Fluid 25 aus der Spirale 2 austritt. Hierdurch ergibt sich eine Maximierung des Wirkungsgrads des in der einzigen Figur gezeigten Wärmeaustauschers.By means of the first fan 3, a first fluid 24 is introduced into the channels 13 of the first fluid channel 12 through the inlet slots, not shown in the drawing, on the end face 8 at the upper one end 5 of the spiral 2. Accordingly, by the second fan 4, a second fluid 25 through the inlet slots 20 of the channels 18 are introduced into the second fluid channel 19. The first fluid, which is shown in the figure by the white arrow representations, flows through the spiral 2 in the downward direction. Accordingly flows through the second fluid 25, which is shown in the figure by the black arrow representations, the spiral 2 in the upward direction. The temperature difference between the two fluids 24, 25 is almost constant in the entire region of the spiral 2, since the first fluid 24 then enters the spiral 2 when the second fluid 25 emerges from the spiral 2. This results in maximizing the efficiency of the heat exchanger shown in the single figure.

Die Spirale 2 des Wärmeaustauschers 1 kann aus Aluminium oder aus einem geeigneten Kunststoff ausgebildet sein.The spiral 2 of the heat exchanger 1 may be formed of aluminum or of a suitable plastic.

Claims (14)

  1. A heat exchanger having a first fluid channel (12) through which a first fluid (24) can flow, and having a second fluid channel (19) through which a second fluid (25) can flow, wherein the two fluid channels (12, 19) are formed to be spiral-shaped in opposite directions, and each fluid channel (12, 19) rests flat at its upper wall and its lower wall against the lower and upper walls, respectively, of the other fluid channel (19, 12) in each winding of the spiral (2) formed by the fluid channels (12, 19), characterized in that the fluid channels (12, 19) have a rectangular flow cross-section.
  2. The heat exchanger according to claim 1, the spiral (2) of which, formed by the fluid channels (12, 19), has a circular, oval or another cross-section that is rounded in a suitable manner.
  3. The heat exchanger according to claim 1 or claim 2, wherein the width (16) of the flow cross-section of the fluid channels (12, 19) is many times greater, e.g., five to twenty times greater than their height (17).
  4. The heat exchanger according to any one of the claims 1 to 3, wherein for forming the spiral (2), the fluid channels (12, 19) are inserted into each other.
  5. The heat exchanger according to any one of the claims 1 to 4, wherein the inlet opening of the first fluid channel (12) is arranged at the one end (5) of the spiral (2) of the heat exchanger (1), and the inlet opening (21) of the second fluid channel (19) is arranged at the other end (6) of the spiral (2) of the heat exchanger (1).
  6. The heat exchanger according to claim 5, wherein at the one end (5) of the spiral (2) of the heat exchanger (1) there is arranged a first fan (3) by means of which the first fluid (24) can be fed into the inlet opening of the first fluid channel (12).
  7. The heat exchanger according claim 5 or claim 6, wherein at the other end (6) of the spiral (2) of the heat exchanger (1) there is arranged a second fan (4) by means of which the second fluid (25) can be fed into the inlet opening (21) of the second fluid channel (19).
  8. The heat exchanger according to any one of the claims 1 to 7, wherein the outlet opening (23) of the second fluid channel (19) is arranged and formed at the one end (5) of the spiral (2) of the heat exchanger (1) in such a manner that the second fluid (25) exits the spiral (2) of the heat exchanger (1) in the radial direction.
  9. The heat exchanger according to any one of the claims 1 to 8, wherein the outlet opening (14) of the first fluid channel (12) is arranged and formed at the other end (6) of the spiral (2) of the heat exchanger (1) in such a manner that the first fluid (24) exits the spiral (2) of the heat exchanger (1) in the radial direction.
  10. The heat exchanger according to any one of the claims 6 to 9, wherein the diameter of the first fan (3) and/or the second fan (4) corresponds to the diameter of the spiral (2) of the heat exchanger (1), and the spiral (2) of the heat exchanger (1) and the first fan (3) and/or the second fan (4) are arranged coaxially.
  11. The heat exchanger according to any one of the claims 6 to 10, wherein a drive unit of the first fan (3) and/or a drive unit of the second fan (4) are/is arranged at least partially in a hollow hub region (11) of the spiral (2) of the heat exchanger (1).
  12. The heat exchanger according to any one of the claims 1 to 11, the spiral (2) of which is made from aluminum or plastics.
  13. The heat exchanger according to any one of the claims 1 to 12, wherein the upper and lower walls of the fluid channels (12, 19) are formed to be non-planar, e.g., corrugated.
  14. The heat exchanger according to any one of the claims 1 to 12, wherein each fluid channel (12, 19) is formed as a channel packet from a plurality of channels (13, 18) that are parallel and spaced apart from each other, wherein between the channels (13) of the first channel packet of the first fluid channel (12) in each case one channel (18) of a corresponding channel packet of the second fluid channel (19) is arranged, and wherein the inlet openings (21) and the outlet openings (14, 23) of the two fluid channels (12, 19) are formed by a number of inlet (20) and outlet slots (15, 22), respectively, that corresponds to the number of the channels (13, 18).
EP20090012442 2008-11-27 2009-10-01 Heat exchanger Not-in-force EP2192367B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810059200 DE102008059200A1 (en) 2008-11-27 2008-11-27 heat exchangers

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EP2192367A2 EP2192367A2 (en) 2010-06-02
EP2192367A3 EP2192367A3 (en) 2012-07-11
EP2192367B1 true EP2192367B1 (en) 2014-07-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101982135B1 (en) 2017-07-11 2019-05-24 (주)제이하우스 Length adjusting ventilator

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010007249A1 (en) * 2010-02-09 2011-08-11 Went, Tilo, 53474 Heat exchanger, particularly condenser, is provided with double helix-shaped wall that is introduced in cylinder of two separate helical tubes
CZ2011583A3 (en) 2011-09-20 2013-01-16 2 Vv S. R. O. Countercurrent cylindrical recuperative heat-exchange apparatus with multiple-threaded helically wound heat transfer surfaces intended particularly for ventilation installations
CN103162555A (en) * 2013-03-11 2013-06-19 泰州市沪江特种设备有限公司 Circular pipe type pipeline heat exchanger

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Publication number Priority date Publication date Assignee Title
EP0029573A3 (en) * 1979-11-24 1981-12-16 Uwe Klix Heat exchangers, their formation and arrangement in an installation for heat recovery by exchange of air, in particular for dwelling houses and comparable lay-outs
JPH0726792B2 (en) * 1986-05-19 1995-03-29 松下電器産業株式会社 Heat exchanger
JP2001280862A (en) * 2000-03-31 2001-10-10 Sanyo Electric Co Ltd Brine heat exchanger
JP3768147B2 (en) * 2001-11-09 2006-04-19 三洋電機株式会社 Heat exchanger and heat pump water heater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101982135B1 (en) 2017-07-11 2019-05-24 (주)제이하우스 Length adjusting ventilator

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DE102008059200A1 (en) 2010-06-02
EP2192367A2 (en) 2010-06-02
EP2192367A3 (en) 2012-07-11

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