EP2192367A2 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
EP2192367A2
EP2192367A2 EP09012442A EP09012442A EP2192367A2 EP 2192367 A2 EP2192367 A2 EP 2192367A2 EP 09012442 A EP09012442 A EP 09012442A EP 09012442 A EP09012442 A EP 09012442A EP 2192367 A2 EP2192367 A2 EP 2192367A2
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EP
European Patent Office
Prior art keywords
heat exchanger
fluid
spiral
channel
channels
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Granted
Application number
EP09012442A
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German (de)
French (fr)
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EP2192367B1 (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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Publication of EP2192367B1 publication Critical patent/EP2192367B1/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 with a first fluid channel which can be traversed by a first fluid, and a second fluid channel, which can be traversed by a second fluid.
  • Such heat exchangers are based on the basic principle that a heat exchange between the two fluids takes place through the walls separating the two fluid channels.
  • the invention has for its object, starting from the above-described prior art, a heat exchanger as compact as possible to design with the highest possible efficiency and the lowest possible operating noise, the heat exchanger beyond both quantitatively and qualitatively easily adaptable to different requirement profiles and with a comparatively small technical and design effort should be mountable.
  • the spiral formed by the fluid channels has a circular, oval or otherwise suitably rounded cross-section.
  • the fluid channels have expediently a rectangular flow cross-section, wherein advantageously the width of the flow cross-section of the fluid channels is a multiple, 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 can be introduced into the inlet opening of the first fluid channel, wherein expediently at the other end of the coil of the heat exchanger, a second fan should be arranged, by means of which the second fluid in the inlet opening of the second fluid channel can be introduced.
  • 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 passages 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 each have a channel of a corresponding channel packet of the second fluid channel is arranged and wherein the inlet openings and the outlet openings of two fluid channels is formed by a 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.
  • the spiral 2 are provided a number of outlet slots 15 corresponding to the number of channels 13, 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 surface 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 are separated by the closed ends of the channels 13 of the first fluid channel 12.
  • 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 lies Each channel 13 of the first fluid channel 12 on an upper wall of an adjacent channel 18 of the second fluid channel 19 at.
  • 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. Accordingly, a second fluid 25 is introduced through the inlet slots 20 of the channels 18 into the second fluid channel 19 by the second fan 4.
  • 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.
  • 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)

Abstract

The exchanger (1) has fluid channels (12, 19) passed by respective fluid (24, 25). The fluid channels are designed in a spiral manner in opposite directions. Each channel lies against lower or upper wall of the other channel in each winding of a spiral unit (2) of the heat exchanger at an upper and lower wall in a laminar manner, where the spiral unit is formed by the channels. The channels exhibit rectangular flow cross section and are designed as a channel package. Ventilators (3, 4) are arranged at ends (5, 6) of the spiral unit, where the spiral unit is made of aluminum and plastic.

Description

Die Erfindung bezieht sich auf einen Wärmeaustauscher mit einem ersten Fluidkanal der von einem ersten Fluid durchströmbar ist, und einem zweiten Fluidkanal, der von einem zweiten Fluid durchströmbar ist.The invention relates to a heat exchanger with a first fluid channel which can be traversed by a first fluid, and a second fluid channel, which can be traversed by a second fluid.

Derartige Wärmeaustauscher beruhen auf dem Grundprinzip, dass ein Wärmeaustausch zwischen den beiden Fluiden durch die die beiden Fluidkanäle trennenden Wandungen stattfindet.Such heat exchangers are based on the basic principle that a heat exchange between the two fluids takes place through the walls separating the two fluid channels.

Der Erfindung liegt die Aufgabe zugrunde, ausgehend von dem vorstehend geschilderten Stand der Technik einen Wärmeaustauscher möglichst kompakt, mit einem möglichst hohen Wirkungsgrad und mit möglichst geringen Betriebsgeräuschen auszugestalten, wobei der Wärmeaustauscher darüber hinaus sowohl quantitativ als auch qualitativ leicht an unterschiedliche Anforderungsprofile anpassbar und mit einem vergleichsweise geringen technisch-konstruktiven Aufwand montierbar sein sollte.The invention has for its object, starting from the above-described prior art, a heat exchanger as compact as possible to design with the highest possible efficiency and the lowest possible operating noise, the heat exchanger beyond both quantitatively and qualitatively easily adaptable to different requirement profiles and with a comparatively small technical and design effort should be mountable.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die beiden Fluidkanäle gegenläufig spiralförmig ausgebildet sind, und dass jeder Fluidkanal in jeder Windung der durch die Fluidkanäle gebildeten Spirale des Wärmeaustauschers an seiner Ober- und an seiner Unterwand flächig an der Unter- bzw. Oberwand des anderen Fluidkanals anliegt. Hierdurch 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.This object is achieved in that the two fluid channels are formed in opposite directions spirally, and that each fluid channel in each turn of the spiral formed by the fluid channels of the heat exchanger at its top and on its lower wall surface at the bottom or top wall the other fluid channel is present. This results in a significant compared to known from the prior art heat exchangers acoustic attenuation, 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 Fluidkanäle haben zweckmäßigerweise einen rechteckigen Strömungsquerschnitt, wobei vorteilhaft die Breite des Strömungsquerschnitts der Fluidkanäle 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 fluid channels have expediently a rectangular flow cross-section, wherein advantageously the width of the flow cross-section of the fluid channels is a multiple, 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. In addition, 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 can be introduced into the inlet opening of the first fluid channel, wherein expediently at the other end of the coil of the heat exchanger, a second fan should be arranged, by means of which the second fluid in the inlet opening of the second fluid channel can be introduced.

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 passages of the heat exchanger, it is advantageous if the top and bottom walls of the fluid passages 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 each have a channel of a corresponding channel packet of the second fluid channel is arranged and wherein the inlet openings and the outlet openings of two fluid channels is formed by a 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 end 6 the spiral 2 are provided a number of outlet slots 15 corresponding to the number of channels 13, 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 surface 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 are separated by the closed ends of the channels 13 of the first fluid channel 12. 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 lies Each channel 13 of the first fluid channel 12 on an upper wall of an adjacent channel 18 of the second fluid channel 19 at.

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, a second fluid 25 is introduced through the inlet slots 20 of the channels 18 into the second fluid channel 19 by the second fan 4. 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 (15)

Wärmeaustauscher mit einem ersten Fluidkanal (12), der von einem ersten Fluid (24) durchströmbar ist, und einem zweiten Fluidkanal (19), der von einem zweiten Fluid (25) durchströmbar ist, dadurch gekennzeichnet, dass die beiden Fluidkanäle (12, 19) gegenläufig spiralförmig ausgebildet sind, dass jeder Fluidkanal (12, 19) in jeder Windung der durch die Fluidkanäle (12, 19) gebildeten Spirale (2) des Wärmeaustauschers (1) an seiner Ober- und an seiner Unterwand flächig an der Unter- bzw. Oberwand des anderen Fluidkanals (19, 12) anliegt.Heat exchanger with a first fluid channel (12) through which a first fluid (24) can flow, and a second fluid channel (19) through which a second fluid (25) can flow, characterized in that the two fluid channels (12, 19 ) are formed spirally in opposite directions, that each fluid channel (12, 19) in each turn of the formed by the fluid channels (12, 19) spiral (2) of the heat exchanger (1) on its upper and on its lower wall surface at the bottom or Upper wall of the other fluid channel (19, 12) rests. Wärmeaustauscher nach Anspruch 1, dessen durch die Fluidkanäle (12, 19) gebildete Spirale (2) einen kreisförmigen, ovalen oder in anderer geeigneter Weise abgerundeten Querschnitt aufweist.Heat exchanger according to claim 1, wherein the spiral (2) formed by the fluid channels (12, 19) has a circular, oval or otherwise suitably rounded cross-section. Wärmeaustauscher nach Anspruch 1 oder 2, dessen Fluidkanäle (12, 19) einen rechteckigen Strömungsquerschnitt aufweisen.Heat exchanger according to claim 1 or 2, whose fluid channels (12, 19) have a rectangular flow cross-section. Wärmeaustauscher nach einem der Ansprüche 1 bis 3, bei dem die Breite (16) des Strömungsquerschnitts der Fluidkanäle (12, 19) um ein Vielfaches, z.B. um ein Fünf- bis Zwanzigfaches, größer ist als ihre Höhe (17).A heat exchanger according to any one of claims 1 to 3, wherein the width (16) of the flow cross-section of the fluid channels (12, 19) is many times, e.g. five to twenty times larger than their height (17). Wärmeaustauscher nach einem der Ansprüche 1 bis 4, bei dem die Fluidkanäle (12, 19) zur Ausbildung der Spirale (2) ineinander gesteckt sind.Heat exchanger according to one of claims 1 to 4, wherein the fluid channels (12, 19) for forming the spiral (2) are inserted into one another. Wärmeaustauscher nach einem der Ansprüche 1 bis 5, bei dem am einen Ende (5) der Spirale (2) des Wärmeaustauschers (1) die Einlassöffnung des ersten Fluidkanals (12) und am anderen Ende (6) der Spirale (2) des Wärmeaustauschers (1) die Einlassöffnung (21) des zweiten Fluidkanals (19) angeordnet sind.Heat exchanger according to one of claims 1 to 5, wherein at one end (5) of the coil (2) of the heat exchanger (1) the inlet opening of the first fluid channel (12) and at the other end (6) of the coil (2) of the heat exchanger ( 1), the inlet opening (21) of the second fluid channel (19) are arranged. Wärmeaustauscher nach Anspruch 6, bei dem am einen Ende (5) der Spirale (2) des Wärmeaustauschers (1) ein erster Lüfter (3) angeordnet ist, mittels dem das erste Fluid (24) in die Einlassöffnung des ersten Fluidkanals (12) einleitbar ist.Heat exchanger according to claim 6, wherein at one end (5) of the coil (2) of the heat exchanger (1) a first fan (3) is arranged, by means of which the first fluid (24) can be introduced into the inlet opening of the first fluid channel (12) is. Wärmeaustauscher nach Anspruch 6 oder 7, bei dem am anderen Ende (6) der Spirale (2) des Wärmeaustauschers (1) ein zweiter Lüfter (4) angeordnet ist, mittels dem das zweite Fluid (25) in die Einlassöffnung (21) des zweiten Fluidkanals (19) einleitbar ist.Heat exchanger according to claim 6 or 7, wherein at the other end (6) of the coil (2) of the heat exchanger (1) a second fan (4) is arranged, by means of which the second fluid (25) into the inlet opening (21) of the second Fluid channel (19) can be introduced. Wärmeaustauscher nach einem der Ansprüche 1 bis 8, bei dem am einen Ende (5) der Spirale (2) des Wärmeaustauschers (1) die Auslassöffnung (23) des zweiten Fluidkanals (19) so angeordnet und ausgebildet ist, dass das zweite Fluid (25) in Radialrichtung aus der Spirale (2) des Wärmeaustauschers (1) austritt.Heat exchanger according to one of claims 1 to 8, wherein at one end (5) of the spiral (2) of the heat exchanger (1), the outlet opening (23) of the second fluid channel (19) is arranged and formed such that the second fluid (25 ) in the radial direction from the spiral (2) of the heat exchanger (1) emerges. Wärmeaustauscher nach einem der Ansprüche 1 bis 9, bei dem am anderen Ende (6) der Spirale (2) des Wärmeaustauschers (1) die Auslassöffnung (14) des ersten Fluidkanals (12) so angeordnet und ausgebildet ist, dass das erste Fluid (24) in Radialrichtung aus der Spirale (2) des Wärmeaustauschers (1) austritt.Heat exchanger according to one of claims 1 to 9, wherein at the other end (6) of the coil (2) of the heat exchanger (1), the outlet opening (14) of the first fluid channel (12) is arranged and configured so that the first fluid (24 ) in the radial direction from the spiral (2) of the heat exchanger (1) emerges. Wärmeaustauscher nach einem der Ansprüche 7 bis 10, bei dem der Durchmesser des ersten Lüfters (3) und/oder des zweiten Lüfters (4) dem Durchmesser der Spirale (2) des Wärmeaustauschers (1) entspricht und die Spirale (2) des Wärmeaustauschers (1) und der erste Lüfter (3) und/oder der zweite Lüfter (4) koaxial angeordnet sind.Heat exchanger according to one of claims 7 to 10, 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. Wärmeaustauscher nach einem der Ansprüche 7 bis 11, bei dem eine Antriebseinrichtung des ersten Lüfters (3) und/oder eine Antriebseinrichtung des zweiten Lüfters (4) zumindest teilweise in einem Hohlnabenbereich (11) der Spirale (2) des Wärmeaustauschers (1) angeordnet ist bzw. sind.Heat exchanger according to one of claims 7 to 11, wherein a drive means of the first fan (3) and / or a drive means of the second fan (4) at least partially in a hollow hub region (11) of the spiral (2) of the heat exchanger (1) is arranged or are. Wärmeaustauscher nach einem der Ansprüche 1 bis 12, dessen Spirale (2) aus Aluminium oder Kunststoff ausgebildet ist.Heat exchanger according to one of claims 1 to 12, whose spiral (2) is made of aluminum or plastic. Wärmeaustauscher nach einem der Ansprüche 1 bis 13, bei dem die Ober- und die Unterwände der Fluidkanäle (12, 19) unplan, z.B. gewellt, ausgebildet sind.A heat exchanger according to any one of claims 1 to 13, wherein the top and bottom walls of the fluid channels (12, 19) are unplaned, e.g. corrugated, are formed. Wärmeaustauscher nach einem der Ansprüche 1 bis 14, bei dem jeder Fluidkanal (12, 19) als Kanalpaket aus mehreren parallelen und zueinander beabstandeten Kanälen (13, 18) ausgebildet ist, wobei zwischen den Kanälen (13) des Kanalpakets des ersten Fluidkanals (12) jeweils ein Kanal (18) eines entsprechenden Kanalpakets des zweiten Fluidkanals (19) angeordnet ist und wobei die Einlassöffnungen (21) und die Auslassöffnungen (14, 23) der beiden Fluidkanäle (12, 19) durch eine der Anzahl der Kanäle (13, 18) entsprechende Anzahl von Einlass- (20) bzw. Auslassschlitzen (15, 22) gebildet ist.Heat exchanger according to one of claims 1 to 14, in which each fluid channel (12, 19) is designed as a channel packet of a plurality of parallel and mutually spaced channels (13, 18), wherein between the channels (13) of the channel packet of the first fluid channel (12). in each case a channel (18) of a corresponding channel stack 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 separated by one of the number of channels (13, 18 ) is formed corresponding number of inlet (20) and outlet slots (15, 22).
EP20090012442 2008-11-27 2009-10-01 Heat exchanger Not-in-force EP2192367B1 (en)

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Cited By (3)

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WO2013041066A2 (en) 2011-09-20 2013-03-28 2Vv S.R.O. Counterflow cylindrical recuperative heat exchanger with multi-thread screw-like coiled heat exchanger surfaces, designed for ventilating devices
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
KR20190006792A (en) * 2017-07-11 2019-01-21 (주)제이하우스 Length adjusting ventilator

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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

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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

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Publication number Priority date Publication date Assignee Title
JP2003148880A (en) 2001-11-09 2003-05-21 Sanyo Electric Co Ltd Heat exchanger and heat pump type water heater

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013041066A2 (en) 2011-09-20 2013-03-28 2Vv S.R.O. Counterflow cylindrical recuperative heat exchanger with multi-thread screw-like coiled heat exchanger surfaces, designed for ventilating devices
WO2013041066A3 (en) * 2011-09-20 2013-08-22 2Vv S.R.O. Counterflow cylindrical recuperative heat exchanger with multi-thread screw-like coiled heat exchanger surfaces, designed for ventilating devices
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
KR20190006792A (en) * 2017-07-11 2019-01-21 (주)제이하우스 Length adjusting ventilator

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

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