WO2002027255A1 - Counter current heat exchanger - Google Patents

Counter current heat exchanger Download PDF

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Publication number
WO2002027255A1
WO2002027255A1 PCT/EP2001/007741 EP0107741W WO0227255A1 WO 2002027255 A1 WO2002027255 A1 WO 2002027255A1 EP 0107741 W EP0107741 W EP 0107741W WO 0227255 A1 WO0227255 A1 WO 0227255A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
sections
housing
exchanger
tubes
Prior art date
Application number
PCT/EP2001/007741
Other languages
German (de)
French (fr)
Inventor
Markus Bittcher
André Bottländer
Dieter Wegmann
Original Assignee
Siegenia-Frank Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siegenia-Frank Kg filed Critical Siegenia-Frank Kg
Priority to AU2001272524A priority Critical patent/AU2001272524A1/en
Priority to EP01951654A priority patent/EP1320713A1/en
Publication of WO2002027255A1 publication Critical patent/WO2002027255A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0083—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium
    • 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
    • F28D7/16—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 arranged in parallel spaced relation
    • F28D7/163—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 arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
    • F28D7/1653—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 arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having a square or rectangular shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units

Definitions

  • the invention relates to a heat exchanger of the type specified in the preamble of claim 1.
  • the counterflow heat exchanger has a number of heat exchanger elements which are stacked one above the other while maintaining predetermined distances from one another.
  • Each heat exchanger element has a number of elongated, parallel heat exchanger tubes, that is to say a tube bundle, at each end of which a collector is arranged.
  • the collectors each have an inclined open end surface and a symmetrically arranged, inclined closed end surface.
  • the first fluid is distributed such that it flows uniformly through the interior of the heat exchanger tubes, while the second fluid flows evenly through the spaces between the heat exchanger elements and around the heat exchanger tubes.
  • the first and second fluids flow in counterflow through the heat exchanger element and exit to the right and left at the open end faces of the collectors. If a number of such elements are now stacked one above the other, the spaces between the closed sides form openings for the entry of a second fluid, which then flows around the tubes of the tube bundle and exits through corresponding spaces between the closed sides.
  • a continuous heat exchanger for gaseous fluids is known, which is in countercurrent Exchange areas is performed, especially for room ventilation systems with an exhaust air and a supply air duct.
  • the channel carrying the low temperature fluid and the channel carrying the higher temperature fluid opens in opposite directions into a register of cells which have exchange surfaces which serve as common partition walls, the entrances and exits of the channels into the cells on one side each transverse to the exchange surfaces running center plane of the register and each second cell is blocked by an end wall against the inflow of fluid from one channel and open to the inflow from the other channel.
  • the entrances and exits of the channels each run obliquely to the median plane mentioned in order to enlarge the passage cross sections.
  • the present invention has for its object to provide a countercurrent heat exchanger of the type mentioned, which manages with a low flow resistance and has a high degree of heat recovery.
  • a countercurrent heat exchanger has elongated, hollow exchanger tubes which are open at their respective ends and enclosed by a housing, the housing having an inlet opening at the respective ends of the housing and on a side face of the housing in the vicinity of the respective End has an outlet opening.
  • One fluid enters the front of the heat exchanger, flows through the exchanger tubes in this chamber and then flows around exchanger tubes located in the next chamber.
  • there is an interplay of the fluid by flowing through and flowing around.
  • the fluid then leaves the heat exchanger through an outlet opening, as already described.
  • the other fluid follows the same path, only in the opposite direction. Because of the interplay, a direct collision of the fluids is avoided, so that there is no backflow of the flow and so the heat exchange capacity can be fully used. As a result, this heat exchanger has a low pressure drop and a high degree of heat recovery.
  • the warm, moist fluid flows around the cold flowing fluid.
  • the moisture condenses on the outside of the tubes and does not hinder the air flowing past to the same extent as it would in the exchanger tubes - the tubes are sealed by water drops - as falling drops collect on the floor of the chamber and are directed away from there can. In this way, the condensate can be systematically precipitated in a chamber.
  • the exchanger tubes have a small wall thickness.
  • good dimensional stability is achieved, and on the other hand the thinner the exchanger tubes are designed, the greater the volume flow of the fluids flowing through or around them.
  • the exchanger tubes preferably consist of a thin-walled plastic. However, other materials can also be used.
  • the outlet opening is arranged in the vicinity of the end walls. Since the outlet opening is arranged on the sides of the housing, the side surfaces or the side dimensions can be of different sizes from one another as required, so that for all
  • Variants of a ventilation device that uses heat exchangers Not only the side surfaces, but also the length of the heat exchanger can be manufactured in different dimensions. Depending on the installation condition, the outlet openings of the two fluids can be arranged on different side surfaces with possibly different sizes.
  • the heat exchanger consists of at least two sections, each section has at least one exchanger tube which are arranged offset to one another.
  • the recurring change of the staggered arrangement of the exchanger tubes in the lined-up sections enables the interplay between flow around and flow through the fluids guided according to the counterflow principle.
  • the heat exchanger consists of at least two sections, a spatial separation of the sections being characterized by staggered exchanger tubes.
  • a strict separation of the sections ensures that the flow direction is maintained, on the other hand, production is easier and thus the costs of the entire heat exchanger are greatly reduced.
  • the sections are separated by individual partition walls, the material of which can be freely selected to suit the installation conditions.
  • a partial section forms a structural unit consisting of at least one exchanger tube which is enclosed by a housing, the housing carrying fastening means which enable several structural units to be linked to form a structural unit.
  • the Sections are arranged the same size and can therefore also be easily adapted to any installation condition. Furthermore, the manufacturing costs are reduced due to the fact that the material is of the same size for each section.
  • Fig. 1 is a schematic front view of the heat exchanger in a
  • Fig. 2 is a front view of the heat exchanger with another
  • Fig. 3 is a schematic front view of the heat exchanger in a further embodiment.
  • Fig. 1 shows a heat exchanger 1, for example a ventilation device of a building, consisting of a housing 2, which has a series of holes on the end walls 3 and 4, which serve as an inlet opening for the warm, moist fluid W, e.g. from the interior and the cold fluid K, e.g. are provided from the outside of the building.
  • a heat exchanger 1 for example a ventilation device of a building, consisting of a housing 2, which has a series of holes on the end walls 3 and 4, which serve as an inlet opening for the warm, moist fluid W, e.g. from the interior and the cold fluid K, e.g. are provided from the outside of the building.
  • W warm, moist fluid
  • K cold fluid
  • Housing 2 can be part of the ventilation device, but can also be provided as part of the heat exchanger 1.
  • a partition 7 is also visible in the vicinity of the central axis of the heat exchanger 1 and has a number of bores which corresponds to the sum of the bores in the end wall 3 and the end wall 4. It can be seen that the bores of the end wall 3 and the end wall 4 are each offset from one another.
  • the partition 7 divides the housing 2 or the heat exchanger 1 into two sections 8 and 9, in which exchanger tubes 10 are systematically arranged, the number of which corresponds to the number of holes in the partition 7 and the number of end walls 3 and 4.
  • the exchanger tubes 10 are fastened in the end walls 3 and 4 and are held at a distance from one another by the partition wall 7.
  • the warm fluid W first flows through the exchanger tubes 10 of the section 9, then flows around the
  • heat exchanger 1 has no influence on the efficiency as long as the number of exchanger tubes 10 in total, their effective length and distance between them remain.
  • the design in which the warm, e.g. Fluid originating from an interior of the room into a section of the
  • Heat exchanger 1 first flows around the cold fluid coming from outside. Possibly. Moisture contained in the warm fluid coming from the interior of the room is thereby targeted to the outside of the exchanger tubes 10 brought to failure. The associated higher friction leads to a pressure loss, which, however, turns out to be less than if the moisture inside the exchanger tube 10 fails. Condensate that accumulates can also be removed more easily outside of the immersion tubes 10.
  • FIG. 2 shows another embodiment of the heat exchanger 1 described in a front view, the front side surface being broken open to make the arrangement of the exchanger tubes 10 visible.
  • the flow of the fluid is unchanged as described in Fig. 1 according to the countercurrent principle.
  • the fluid W and K changes in sections from 8 to 9 and from 9 to 8 from flowing through to flowing around.
  • a change to FIG. 1 can be seen in the area of the partition 8, the partition 13 being designed thinner and the exchanger tubes 10 projecting into the sections 8 and 9. It is advantageous here that the transition from flowing through to flowing around is not dependent on the position of the partition 13, but can also be spaced apart from it in order to rule out a direct collision of the fluid.
  • the load that acts on the partition 13 is distributed by receiving the exchanger tubes 13 and by the acting flow forces of the fluid due to the displacement of the exchanger tubes 10 from the area of the partition 13.
  • the exchanger tubes 10 are only in the end walls 3 for this purpose , 4 attached and received in the partition 13 longitudinally.
  • the heat exchanger 1 can thereby be telescopically pushed together, the housing 2 of course having to be adapted.
  • Fig. 3 shows a schematic front view of the heat exchanger 1 in a further embodiment, which is formed from a plurality of units 14, 15, 16, each unit 14, 15, 16 having its own housing 17, 18, 19, which advantageously with the same number of
  • Exchanger tubes 10 are equipped and have fastening means 20 which form the connection of the structural unit 14, 15, 16 and, depending on the installation conditions a link or a chain of such units can be attached without great effort depending on the size and need of the heat exchanger.
  • the exchanger tubes 10 are not received in bores in a partition 7, 13, but rather are supported on one another.
  • the exchanger tubes can e.g. be arranged like a honeycomb and have a hexagonal cross section, which at least in the central region adjusts itself dimensionally to the installation conditions.
  • the outlet openings 5, 6 are each selected for the fluid K, W, which flows around the exchanger tubes 10 in the section 8 or 9 in which the outlet openings 5, 6 are provided.
  • This requires an even number of sections 8, 9, but enables the outlet opening 5, 6 to be arranged at any point within the section 8, 9.
  • the fluid contained in the exchanger tubes 10, on the other hand, can only be removed or removed from the end faces 3 or 4. be initiated.
  • it is advantageous for the efficiency of the heat exchanger 1 if the outlet openings 5, 6 are as close as possible to the end walls 3, 4 in order to maximize the usable length of the exchanger tubes 10.
  • the outlet openings 5, 6 are provided in a side wall of the housing 2, in mutually opposite side walls or even in adjacent side walls which run at right angles to one another.

Abstract

The invention relates to a heat exchanger (1) for using in a ventilation device and for exchanging heat between two gaseous liquids which circulate according to the counter current principle. The inventive heat exchanger comprises hollow exchanger pipes (10) extending in the longitudinal direction, said pipes being open at the respective ends thereof and being enclosed by a housing (2). The housing comprises an inlet (11, 12) on the pipe-side ends thereof, and respectively comprises an outlet (5, 6) on a lateral surface near the respective ends. The exchanger pipes (10) are divided into partial sections (8, 9), the two gaseous liquids alternately flowing around and through said pipes.

Description

Gegenstrom-WärmetauscherCounterflow heat exchanger
Die Erfindung betrifft einen Wärmetauscher der im Oberbegriff des Anspruchs 1 angegebenen Gattung.The invention relates to a heat exchanger of the type specified in the preamble of claim 1.
Derartige Wärmetauscher sind bereits bekannt, beispielsweise durch die DE 33 36 049 C3, wobei der Wärmetausch zwischen zwei im Gegenstrom strömenden Strömungsmitteln stattfindet und nicht nur ein Austausch der fühlbaren Wärme erfolgt, sondern auch ein Austausch der latenten Wärme unter Absorption und Verdampfung von Feuchtigkeit. Dabei weist der Gegenstrom-Wärmetauscher eine Anzahl von Wärmetauscherelementen auf, welche unter Einhaltung vorbestimmter Abstände zueinander übereinander gestapelt sind. Jedes Wärmetauscherelement hat eine Anzahl von langgestreckten, parallelen Wärmetauscherrohren, das heißt, ein Rohrbündel, an dessen beiden Ende jeweils ein Sammler angeordnet ist. Die Sammler haben jeweils eine schräg verlaufende offene Endfläche und eine symmetrisch dazu angeordnete, schräg verlaufende geschlossene Endfläche. Bei einer derartigen Ausbildung wird das erste Strömungsmittel derart verteilt, dass es das innere der Wärmetauscherrohre gleichmäßig durchströmt, während das zweite Strömungsmittel gleichmäßig durch die Zwischenräume zwischen den Wärmetauscherelementen und um die Wärmetauscherrohre herumströmt. Das erste und das zweite Strömungsmittel fließen im Gegenstrom durch das Wärmetauscherelement hindurch und treten an den offenen Endflächen der Sammler nach rechts bzw. nach links aus. Wird nun eine Anzahl derartiger Elemente übereinander gestapelt, bilden die Zwischenräume zwischen den geschlossenen Seiten Öffnungen für den Eintritt eines zweiten Strömungsmittels, welches anschließend die Rohre des Rohrbündels umströmt und durch entsprechende Zwischenräume zwischen den geschlossenen Seiten austritt.Such heat exchangers are already known, for example from DE 33 36 049 C3, the heat exchange taking place between two counter-current fluids and not only an exchange of the sensible heat, but also an exchange of the latent heat with absorption and evaporation of moisture. The counterflow heat exchanger has a number of heat exchanger elements which are stacked one above the other while maintaining predetermined distances from one another. Each heat exchanger element has a number of elongated, parallel heat exchanger tubes, that is to say a tube bundle, at each end of which a collector is arranged. The collectors each have an inclined open end surface and a symmetrically arranged, inclined closed end surface. With such a configuration, the first fluid is distributed such that it flows uniformly through the interior of the heat exchanger tubes, while the second fluid flows evenly through the spaces between the heat exchanger elements and around the heat exchanger tubes. The first and second fluids flow in counterflow through the heat exchanger element and exit to the right and left at the open end faces of the collectors. If a number of such elements are now stacked one above the other, the spaces between the closed sides form openings for the entry of a second fluid, which then flows around the tubes of the tube bundle and exits through corresponding spaces between the closed sides.
Aus der DE-OS 29 06 837 sowie der EP 0 040 890 A1 ist ein kontinuierlicher Wärmetauscher für gasförmiges Fluids bekannt, das im Gegenstrom an Austauschflächen geführt wird, insbesondere für Raumlüftungsanlagen mit einem Abluft- und einem Zuluftkanal. Der das Fluid niedriger Temperatur und der das Fluid höherer Temperatur führende Kanal mündet in gegensätzlichen Richtungen in ein Register von Zellen, die als gemeinsame Trennwände dienende Austauschflächen aufweisen, wobei die Eingänge und Ausgänge der Kanäle in die Zellen je an einer Seite einen quer zu den Austauschflächen verlaufende Mittelebene des Registers liegen und wobei jede zweite Zelle durch eine Stirnwand gegen den Zufluss des Fluids aus dem einen Kanal gesperrt und für den Zufluss aus dem anderen Kanal offen ist. Die Eingänge und Ausgänge der Kanäle verlaufen jeweils schräg zur genannten Mittelebene, um die Durchlaßquerschnitte zu vergrößern.From DE-OS 29 06 837 and EP 0 040 890 A1 a continuous heat exchanger for gaseous fluids is known, which is in countercurrent Exchange areas is performed, especially for room ventilation systems with an exhaust air and a supply air duct. The channel carrying the low temperature fluid and the channel carrying the higher temperature fluid opens in opposite directions into a register of cells which have exchange surfaces which serve as common partition walls, the entrances and exits of the channels into the cells on one side each transverse to the exchange surfaces running center plane of the register and each second cell is blocked by an end wall against the inflow of fluid from one channel and open to the inflow from the other channel. The entrances and exits of the channels each run obliquely to the median plane mentioned in order to enlarge the passage cross sections.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen im Gegenstromverfahren arbeitenden Wärmetauscher der genannten Art zu schaffen, der mit einem geringen Strömungswiderstand auskommt und einen hohen Wärmerückgewinnungsgrad erwirkt.The present invention has for its object to provide a countercurrent heat exchanger of the type mentioned, which manages with a low flow resistance and has a high degree of heat recovery.
Die Aufgabe ist durch die im Patentanspruch 1 angegebenen Merkmale gelöst.The object is achieved by the features specified in claim 1.
Gemäß der Erfindung weist ein Gegenstrom-Wärmetauscher längliche, hohle Tauscherrohre auf, die an ihren jeweiligen Enden offen sind und von einem Gehäuse umschlossen sind, wobei das Gehäuse an den jeweiligen Enden des Gehäuses eine Eintrittsöffnung und an einer Seitenfläche des Gehäuses in der Nähe der jeweiligen Enden eine Austrittsöffnung aufweist. Das eine Fluid tritt an der Stirnseite des Wärmetauschers ein, durchströmt in dieser Kammer die Tauscherrohre und umströmt anschließend in der nächsten Kammer liegende Tauscherrohre. Je nach Anzahl der Kammern entsteht so ein Wechselspiel des Fluids durch Durchströmen und Umströmen. Im Anschluss daran verlässt das Fluid den Wärmetauscher wie schon beschrieben durch eine Austrittsöffnung. Das andere Fluid verfolgt den gleichen Weg, nur in entgegengesetzter Richtung. Aufgrund des Wechselspiels, wird ein direktes Aufeinandertreffen der Fluids vermieden, so dass kein Rückstau der Strömung entsteht und so die Wärmetauschkapazität vollständig genutzt werden kann. Folglich verfügt dieser Wärmetauscher über einen geringen Druckverlust und einen hohen Wärmerückgewinnungsgrad.According to the invention, a countercurrent heat exchanger has elongated, hollow exchanger tubes which are open at their respective ends and enclosed by a housing, the housing having an inlet opening at the respective ends of the housing and on a side face of the housing in the vicinity of the respective End has an outlet opening. One fluid enters the front of the heat exchanger, flows through the exchanger tubes in this chamber and then flows around exchanger tubes located in the next chamber. Depending on the number of chambers, there is an interplay of the fluid by flowing through and flowing around. The fluid then leaves the heat exchanger through an outlet opening, as already described. The other fluid follows the same path, only in the opposite direction. Because of the interplay, a direct collision of the fluids is avoided, so that there is no backflow of the flow and so the heat exchange capacity can be fully used. As a result, this heat exchanger has a low pressure drop and a high degree of heat recovery.
Vorteilhaft ist nach einem weiteren Merkmal der Erfindung, dass das warme, feuchte Fluids das kalte durchströmende Fluids umströmt. Die Feuchtigkeit schlägt sich außen an den Rohren nieder und behindert die vorbeiströmende Luft nicht in dem Maße, wie sie es in den Tauscherrohren tun würde - Verschluss der Rohre durch Wassertropfen - da herunterfallende Tropfen sich auf den Boden der Kammer sammeln und von dort gezielt abgeleitet werden können. So kann das Kondensat systematisch in einer Kammer zum Ausfallen gebracht werden.According to a further feature of the invention, it is advantageous that the warm, moist fluid flows around the cold flowing fluid. The moisture condenses on the outside of the tubes and does not hinder the air flowing past to the same extent as it would in the exchanger tubes - the tubes are sealed by water drops - as falling drops collect on the floor of the chamber and are directed away from there can. In this way, the condensate can be systematically precipitated in a chamber.
Konstruktiv einfach und besonders wirtschaftlich herstellbar ist nach der Erfindung, dass die Tauscherrohre eine geringe Wandstärke aufweisen. Durch die Aneinanderreihung von Tauscherrohren entsteht zum einen eine gute Formstabilität, zum anderen erreicht man je dünner die Tauscherrohre konzipiert sind, einen größeren Volumenstrom der durchströmenden bzw. umströmenden Fluide. Vorzugsweise bestehen die Tauscherrohre aus einem dünnwandigen Kunststoff. Es sind aber auch andere Materialien einsetzbar.According to the invention, it is structurally simple and particularly economical to manufacture that the exchanger tubes have a small wall thickness. By lining up exchanger tubes, on the one hand good dimensional stability is achieved, and on the other hand the thinner the exchanger tubes are designed, the greater the volume flow of the fluids flowing through or around them. The exchanger tubes preferably consist of a thin-walled plastic. However, other materials can also be used.
Ebenfalls von Vorteil ist es, dass die Austrittsöffnung in der Nähe der Stirnwände angeordnet ist. Da die Austrittsöffnung an den Seiten des Gehäuses angeordnet ist, können je nach Bedarf die Seitenflächen bzw. die Seitenabmaße unterschiedlich groß voneinander sein, so dass für alleIt is also advantageous that the outlet opening is arranged in the vicinity of the end walls. Since the outlet opening is arranged on the sides of the housing, the side surfaces or the side dimensions can be of different sizes from one another as required, so that for all
Varianten einer Lüftungsvorrichtung der Wärmetauscher seinen Einsatz findet. Nicht nur die Seitenflächen, sondern auch die Länge des Wärmetauschers ist in verschiedenen Abmaßen herstellbar. Je nach Einbaubedingung können die Austrittsöffnungen der beiden Fluide an unterschiedlichen Seitenflächen mit gegebenenfalls unterschiedlicher Größe angeordnet sein.Variants of a ventilation device that uses heat exchangers. Not only the side surfaces, but also the length of the heat exchanger can be manufactured in different dimensions. Depending on the installation condition, the outlet openings of the two fluids can be arranged on different side surfaces with possibly different sizes.
Ein weiteres Merkmal der Erfindung ist, dass der Wärmetauscher aus mindestens zwei Teilabschnitten besteht, wobei jeder Teilabschnitt mindestens ein Tauscherrohr aufweist, die versetzt zueinander angeordnet sind. Der immer wieder kehrende Wechsel der versetzten Anordnung der Tauscherrohre in den aneinander gereihten Teilabschnitten ermöglicht das Wechselspiel zwischen umströmen und durchströmen der nach dem Gegenstromprinzip geführten Fluide.Another feature of the invention is that the heat exchanger consists of at least two sections, each section has at least one exchanger tube which are arranged offset to one another. The recurring change of the staggered arrangement of the exchanger tubes in the lined-up sections enables the interplay between flow around and flow through the fluids guided according to the counterflow principle.
Eine zweckmäßige, weil einfache und kostengünstige Herstellung des Wärmetauschers ist gewährleistet, wenn die Tauscherrohre teilabschnittsweise einteilig ausgebildet sind. Damit wird auch sichergestellt, dass das Fluid nicht von seiner Strömungsrichtung abweicht und so beispielsweise einen Strömungswiderstand erzeugt. Außerdem ist ein Entweichen des Fluids nahezu ausgeschlossen.An expedient, because simple and inexpensive manufacture of the heat exchanger is ensured if the exchanger tubes are formed in one part in sections. This also ensures that the fluid does not deviate from its direction of flow and thus creates a flow resistance, for example. In addition, escape of the fluid is almost impossible.
Besonders hervorzuheben ist die räumliche Trennung der Teilabschnitte, die von den Tauscherrohren selbst realisiert wird, in dem die Tauscherrohre beispielsweise wabenförmig konzipiert sind oder durch Trennwände die aus Kunststoff oder aus einem Füllmaterial bestehen.Particularly noteworthy is the spatial separation of the sections, which is realized by the exchanger tubes themselves, in which the exchanger tubes are designed, for example, in a honeycomb manner or by partition walls which are made of plastic or a filler material.
Eine vorteilhafte Ausgestaltung sieht vor, dass der Wärmetauscher aus mindestens zwei Teilabschnitten besteht, wobei eine räumliche Trennung der Teilabschnitte durch versetzt angeordnete Tauscherrohre gekennzeichnet ist. Eine strikte Trennung der Teilabschnitte stellt einerseits sicher, dass die Strömungsrichtung eingehalten wird, andererseits ist die Herstellung einfacher und damit die Kosten des gesamten Wärmetauschers stark reduziert. Die Trennung der Teilabschnitte erfolgt durch einzelne Trennwände, deren Material den Einbaubedingungen frei wählbar anpassbar ist.An advantageous embodiment provides that the heat exchanger consists of at least two sections, a spatial separation of the sections being characterized by staggered exchanger tubes. On the one hand, a strict separation of the sections ensures that the flow direction is maintained, on the other hand, production is easier and thus the costs of the entire heat exchanger are greatly reduced. The sections are separated by individual partition walls, the material of which can be freely selected to suit the installation conditions.
Eine besonders vorteilhafte Weiterbildung dieser Ausführungsform sieht vor, dass ein Teilabschnitt eine Baueinheit bildet, bestehend aus mindestens einem Tauscherrohr welches von einem Gehäuse umfaßt wird, wobei das Gehäuse Befestigungsmittel trägt, die das Verketten von mehreren Baueinheiten zu einer Baueinheit ermöglicht. Bei dieser Ausführungsvariante kann man auch von einem Baukastenprinzip sprechen, wobei die Teilabschnitte gleich groß angeordnet sind und damit für jede Einbaubedingung ebenfalls leicht anpassbar ist. Des weiteren reduzieren sich die Herstellkosten aufgrund dessen, dass das Material für jeden Teilabschnitt gleich groß bemessen ist.A particularly advantageous further development of this embodiment provides that a partial section forms a structural unit consisting of at least one exchanger tube which is enclosed by a housing, the housing carrying fastening means which enable several structural units to be linked to form a structural unit. In this variant, one can also speak of a modular principle, the Sections are arranged the same size and can therefore also be easily adapted to any installation condition. Furthermore, the manufacturing costs are reduced due to the fact that the material is of the same size for each section.
Weitere Vorteile der Erfindung ergeben sich aus der Beschreibung und der Zeichnung.Further advantages of the invention result from the description and the drawing.
Die vorstehend genannten und die noch weiter aufgeführten Merkmale können erfindungsgemäß jeweils einzeln für sich oder zu mehreren in beliebigen Kombinationen Verwendung finden. Die gezeigten und beschriebenen Ausführungsformen sind als Schilderung der Erfindung zu verstehen.According to the invention, the features mentioned above and those listed further can be used individually or in combination in any combination. The embodiments shown and described are to be understood as a description of the invention.
Es zeigen:Show it:
Fig. 1 eine schematisierte Vorderansicht des Wärmetauschers in einerFig. 1 is a schematic front view of the heat exchanger in a
Ausführungsform mit zwei Teilabschnitten der Erfindung,Embodiment with two sections of the invention,
Fig. 2 eine Vorderansicht des Wärmetauschers mit einer weiterenFig. 2 is a front view of the heat exchanger with another
Ausführungsform undEmbodiment and
Fig. 3 eine schematisierte Vorderansicht des Wärmetauschers in weiterer Ausführungsvariante.Fig. 3 is a schematic front view of the heat exchanger in a further embodiment.
Fig. 1 zeigt einen Wärmetauscher 1 beispielsweise einer Lüftungsvorrichtung eines Gebäudes, bestehend aus einem Gehäuse 2, welches an den Stirnwänden 3 und 4 eine Aneinanderreihung von Bohrungen aufweist, die als Eintrittsöffnung für das warme, feuchte Fluid W, z.B. aus dem Innenraum und das kalte Fluid K, z.B. von der Gebäudeaußenseite vorgesehen sind. DasFig. 1 shows a heat exchanger 1, for example a ventilation device of a building, consisting of a housing 2, which has a series of holes on the end walls 3 and 4, which serve as an inlet opening for the warm, moist fluid W, e.g. from the interior and the cold fluid K, e.g. are provided from the outside of the building. The
Gehäuse 2 kann dabei Bestandteil der Lüftungsvorrichtung sein, aber auch als Teil des Wärmetauschers 1 vorgesehen werden. An einer der Seitenflächen des Gehäuses 2, ist in der Nähe der jeweiligen Enden, jeweils eine Austrittsöffnung 5 und 6 vorhanden, die im wesentlichen senkrecht zu den Eintrittsöffnungen verlaufen. In der Fig. 1 ist ebenfalls in der Nähe der Mittelachse des Wärmetauschers 1 eine Trennwand 7 sichtbar, die eine Anzahl von Bohrungen aufweist, die der Summe der Bohrungen in der Stirnwand 3 und der Stirnwand 4 entspricht. Dabei ist ersichtlich, dass die Bohrungen der Stirnwand 3 und der Stirnwand 4 jeweils versetzt zueinander angeordnet sind. Die Trennwand 7 teilt das Gehäuse 2 bzw. den Wärmetauscher 1 in zwei Teilabschnitte 8 und 9 auf, in denen Tauscherrohre 10 systematisch angeordnet sind, deren Anzahl mit der Anzahl der Bohrungen der Trennwand 7 und mit der Anzahl der Stirnwände 3 und 4 übereinstimmt. Die Tauscherrohre 10 sind in den Stirnwänden 3 und 4 befestigt, sowie von der Trennwand 7 beabstandet voneinander gehalten.Housing 2 can be part of the ventilation device, but can also be provided as part of the heat exchanger 1. On one of the side surfaces of the housing 2, there is one in the vicinity of the respective ends Outlet openings 5 and 6 are present, which are essentially perpendicular to the inlet openings. In FIG. 1, a partition 7 is also visible in the vicinity of the central axis of the heat exchanger 1 and has a number of bores which corresponds to the sum of the bores in the end wall 3 and the end wall 4. It can be seen that the bores of the end wall 3 and the end wall 4 are each offset from one another. The partition 7 divides the housing 2 or the heat exchanger 1 into two sections 8 and 9, in which exchanger tubes 10 are systematically arranged, the number of which corresponds to the number of holes in the partition 7 and the number of end walls 3 and 4. The exchanger tubes 10 are fastened in the end walls 3 and 4 and are held at a distance from one another by the partition wall 7.
Durch die Eintrittsöffnung 11 strömt das warme Fluid W zunächst durch die Tauscherrohre 10 des Teilabschnittes 9, umströmt anschließend dieThrough the inlet opening 11, the warm fluid W first flows through the exchanger tubes 10 of the section 9, then flows around the
Tauscherrohre 10 des Teilabschnittes 8 und tritt aus der Austrittsöffnung 5 wieder aus. Im Gegensatz dazu strömt das kalte Strömungsmittel bzw. Fluid K durch die Eintrittsöffnung 12 der Stirnwand 3 in die Tauscherrohre 10 des Teilabschnitts 8 und umströmt in dem zweiten Teilabschnitt 9 die Tauscherrohre 10, tritt dann anschließend aus der Austrittsöffnung 6 aus dem Wärmetauscher 1 aus.Exchanger tubes 10 of the section 8 and exits from the outlet opening 5 again. In contrast, the cold fluid or fluid K flows through the inlet opening 12 of the end wall 3 into the exchanger tubes 10 of the section 8 and flows around the exchanger pipes 10 in the second section 9, then then exits the outlet 6 from the heat exchanger 1.
Der gezielte Wechsel zwischen Durch- und Umströmen verursacht erwünschte Wirbel und Turbulenzen, die positiv zur Wärmerückgewinnung beitragen. Eine Veränderung der Abmaße oder der Form desThe deliberate alternation between flow and flow causes desired eddies and turbulence, which contribute positively to heat recovery. A change in the dimensions or shape of the
Wärmetauschers 1 hat bei dieser Konzeption keinen Einfluss auf den Wirkungsgrad, solange die Anzahl der Tauscherrohre 10 insgesamt, deren wirksame Länge und Abstand zwischen einander bestehen bleibt. Von besonderem Vorteil ist dabei die Ausgestaltung, bei der das warme, z.B. aus einem Rauminneren stammende Fluid in einen Teilabschnitt desIn this conception, heat exchanger 1 has no influence on the efficiency as long as the number of exchanger tubes 10 in total, their effective length and distance between them remain. Of particular advantage is the design, in which the warm, e.g. Fluid originating from an interior of the room into a section of the
Wärmetauschers 1 zuerst das kalte von außen kommende Fluid umströmt. Ggf. im warmen, aus dem Rauminneren kommenden Fluid enthaltene Feuchtigkeit, wird dadurch gezielt an der Außenseite der Tauscherrohre 10 zum Ausfall gebracht. Die damit verbundene höhere Reibung führt zu einem Druckverlust, der jedoch geringer ausfällt, als bei einem Ausfall der Feuchtigkeit innerhalb des Tauscherrohres 10. Anfallendes Kondensat lässt sich außerhalb der Tasucherrohre 10 auch leichter abführen.Heat exchanger 1 first flows around the cold fluid coming from outside. Possibly. Moisture contained in the warm fluid coming from the interior of the room is thereby targeted to the outside of the exchanger tubes 10 brought to failure. The associated higher friction leads to a pressure loss, which, however, turns out to be less than if the moisture inside the exchanger tube 10 fails. Condensate that accumulates can also be removed more easily outside of the immersion tubes 10.
Die Fig. 2 zeigt ein weiteres Ausführungsbeispiel des beschriebenen Wärmetauschers 1 in Vorderansicht, wobei die vordere Seitenfläche aufgebrochen ist, um die Anordnung der Tauscherrohre 10 sichtbar zu machen. Der Strömungsverlauf des Fluid ist wie in Fig. 1 beschrieben unverändert nach dem Gegenstromprinzip geführt. Auch hier wechselt das Fluid W und K teilabschnittsweise von 8 nach 9 bzw. von 9 nach 8 vom Durchströmen zum Umströmen. Eine Veränderung zur Fig. 1 ist in sofern im Bereich der Trennwand 8 zu erkennen, wobei die Trennwand 13 dünner konzipiert ist und die Tauscherrohre 10 in die Teilabschnitte 8 und 9 hineinragen. Vorteilhaft ist dabei, das der Übergang vom Durchströmen zum Umströmen nicht abhängig von der Lage der Trennwand 13 ist, sondern auch von dieser beabstandet erfolgen kann, um ein direktes aufeinandertreffen des Fluid auszuschließen. Des weiteren verteilt sich die Belastung, die auf die Trennwand 13 einwirkt, durch das Aufnehmen der Tauscherrohre 13 und durch die einwirkenden Strömungskräfte des Fluid aufgrund des Verlagerns der Tauscherrohre 10 aus dem Bereich der Trennwand 13. Die Tauscherrohre 10 sind dazu nur in den Stirnwänden 3, 4 befestigt und in der Trennwand 13 längsverschiebbar aufgenommen. Der Wärmetauscher 1 ist dadurch teleskopartig zusammenschiebbar, wobei natürlich das Gehäuse 2 angepasst werden muss.FIG. 2 shows another embodiment of the heat exchanger 1 described in a front view, the front side surface being broken open to make the arrangement of the exchanger tubes 10 visible. The flow of the fluid is unchanged as described in Fig. 1 according to the countercurrent principle. Here too the fluid W and K changes in sections from 8 to 9 and from 9 to 8 from flowing through to flowing around. A change to FIG. 1 can be seen in the area of the partition 8, the partition 13 being designed thinner and the exchanger tubes 10 projecting into the sections 8 and 9. It is advantageous here that the transition from flowing through to flowing around is not dependent on the position of the partition 13, but can also be spaced apart from it in order to rule out a direct collision of the fluid. Furthermore, the load that acts on the partition 13 is distributed by receiving the exchanger tubes 13 and by the acting flow forces of the fluid due to the displacement of the exchanger tubes 10 from the area of the partition 13. The exchanger tubes 10 are only in the end walls 3 for this purpose , 4 attached and received in the partition 13 longitudinally. The heat exchanger 1 can thereby be telescopically pushed together, the housing 2 of course having to be adapted.
Fig. 3 zeigt eine schematisierte Vorderansicht des Wärmetauschers 1 in einer weiteren Ausführungsvariante, der aus mehreren Baueinheiten 14, 15, 16 gebildet ist, wobei jede Baueinheit 14, 15, 16 ein eigenes Gehäuse 17, 18, 19 aufweist, die in vorteilhafter Weise mit der gleichen Anzahl vonFig. 3 shows a schematic front view of the heat exchanger 1 in a further embodiment, which is formed from a plurality of units 14, 15, 16, each unit 14, 15, 16 having its own housing 17, 18, 19, which advantageously with the same number of
Tauscherrohren 10 bestückt sind und Befestigungsmittel 20 aufweisen, die die Verbindung der Baueinheit 14, 15, 16 bildet und je nach Einbaubedingungen eine Verknüpfung bzw. eine Verkettung solcher Baueinheiten je nach Größe und Bedarf des Wärmetauschers ohne großen Aufwand anbringbar ist.Exchanger tubes 10 are equipped and have fastening means 20 which form the connection of the structural unit 14, 15, 16 and, depending on the installation conditions a link or a chain of such units can be attached without great effort depending on the size and need of the heat exchanger.
Es ist selbstverständlich auch möglich, dass bei dem in Fig. 1 und 2 dargestellten Wärmetauscher 1 die Tauscherrohre 10 nicht in Bohrungen einer Trennwand 7, 13 aufgenommen werden, sondern sich gegenseitig abstützen. Dazu können die Tauscherrohre z.B. wabenartig angeordnet werden und einen sechseckigen Querschnitt aufweisen, der sich zumindest in dem mittleren Bereich maßlich auf Einbaubedingungen einstellt.It is of course also possible that in the heat exchanger 1 shown in FIGS. 1 and 2, the exchanger tubes 10 are not received in bores in a partition 7, 13, but rather are supported on one another. For this purpose, the exchanger tubes can e.g. be arranged like a honeycomb and have a hexagonal cross section, which at least in the central region adjusts itself dimensionally to the installation conditions.
Vorteilhaft ist es auch, wenn die Austrittsöffnungen 5, 6 jeweils für das Fluid K, W, gewählt werden, welches in den Teilabschnitt 8 oder 9, in den die Austrittsöffnungen 5, 6 vorgesehen sind, die Tauscherrohre 10 umspült. Dies setzt eine geradzahlige Anzahl von Teilabschnitten 8, 9 voraus, ermöglicht aber die Anordnung der Austrittsöffnung 5, 6 an beliebiger Stelle innerhalb des Teilabschnittes 8, 9. Das in den Tauscherrohren 10 enthaltene Fluid kann hingegen nur an den Stirnflächen 3 oder 4 abgenommen bzw. eingeleitet werden. Vorteilhaft für den Wirkungsgrad des Wärmetausches 1 ist es dabei aber, wenn die Austrittsöffnungen 5, 6 möglichst nahe an den Stirnwänden 3, 4 liegen, um die nutzbare Länge der Tauscherrohre 10 zu maximieren. Dabei ist es jedoch gleichgültig, ob die Austrittsöffnungen 5, 6 in einer Seitenwand des Gehäuses 2, in einander gegenüberliegenden Seitenwänden oder sogar in nebeneinanderliegenden, rechtwinklig zueinander verlaufenden Seitenwänden angebracht sind. It is also advantageous if the outlet openings 5, 6 are each selected for the fluid K, W, which flows around the exchanger tubes 10 in the section 8 or 9 in which the outlet openings 5, 6 are provided. This requires an even number of sections 8, 9, but enables the outlet opening 5, 6 to be arranged at any point within the section 8, 9. The fluid contained in the exchanger tubes 10, on the other hand, can only be removed or removed from the end faces 3 or 4. be initiated. However, it is advantageous for the efficiency of the heat exchanger 1 if the outlet openings 5, 6 are as close as possible to the end walls 3, 4 in order to maximize the usable length of the exchanger tubes 10. However, it does not matter whether the outlet openings 5, 6 are provided in a side wall of the housing 2, in mutually opposite side walls or even in adjacent side walls which run at right angles to one another.
Bezugszeichenliste:LIST OF REFERENCE NUMBERS
1 Wärmetauscher1 heat exchanger
2 Gehäuse2 housings
3 Stirnwand3 end wall
4 Stirnwand4 end wall
W warme FluidW warm fluid
K kalte FluidK cold fluid
5 Austrittsöffnung5 outlet opening
6 Austrittsöffnung6 outlet opening
7 Trennwand7 partition
8 Teilabschnitt8 subsection
9 Teilabschnitt9 subsection
10 Tauscherrohr10 exchanger tube
11 Eintrittsöffnung11 entrance opening
12 Eintrittsöffnung12 entry opening
13 Trennwand13 partition
14, 15, 16 Baueinheit14, 15, 16 assembly
17, 18, 19 Gehäuse17, 18, 19 housing
20 Befestigungsmittel 20 fasteners

Claims

Patentansprücheclaims
1. Wärmetauscher (1 ) für den Einsatz in eine Lüftungsvorrichtung, zum Wärmetausch zwischen zwei gasförmigen Fluiden die nach dem Gegenstromprinzip geführt sind, wobei der Wärmetauscher (1) länglich, hohle Tauscherrohre (10) aufweist, die an ihren jeweiligen Enden offen sind und von einem Gehäuse (2) umschlossen sind, welches an den rohrseitigen Enden eine Eintrittsöffnung (11, 12) und an einer Seitenfläche des Gehäuses (2) in der Nähe der jeweiligen Enden, jeweils eine Austrittsöffnung (5, 6) aufweist, dadurch gekennzeichnet, dass die Tauscherrohre (10) in Teilabschnitte (8, 9) aufgeteilt sind und im Wechsel von den beiden gasförmigen Fluiden sowohl umströmt als auch durchströmt werden.1. Heat exchanger (1) for use in a ventilation device, for heat exchange between two gaseous fluids which are guided according to the countercurrent principle, the heat exchanger (1) having elongated, hollow exchanger tubes (10) which are open at their respective ends and from are enclosed in a housing (2) which has an inlet opening (11, 12) at the tube-side ends and an outlet opening (5, 6) on each side surface of the housing (2) in the vicinity of the respective ends, characterized in that the exchanger tubes (10) are divided into sections (8, 9) and alternately both flow and flow through the two gaseous fluids.
2. Wärmetauscher nach Anspruch 1 , dadurch gekennzeichnet, dass das warme, feuchte Fluid W in einen Teilabschnitt (8, 9) zuerst das kalte durchströmende Fluid K umströmt.2. Heat exchanger according to claim 1, characterized in that the warm, moist fluid W in a partial section (8, 9) first flows around the cold flowing fluid K.
3. Wärmetauscher nach einem oder mehreren der vorangehenden Ansprüche 1 bis 2, dadurch gekennzeichnet, dass die Tauscherrohre (10) eine geringe Wandstärke aufweisen.3. Heat exchanger according to one or more of the preceding claims 1 to 2, characterized in that the exchanger tubes (10) have a small wall thickness.
4. Wärmetauscher nach einem der mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Austrittsöffnung (5, 6) in der Nähe der Stirnwände (3, 4) liegt. Wärmetauscher nach einem der mehreren der Ansprüche4. Heat exchanger according to one of the several of claims 1 to 3, characterized in that the outlet opening (5, 6) is in the vicinity of the end walls (3, 4). Heat exchanger according to one of the several of the claims
1 bis 4, dadurch gekennzeichnet, dass der Wärmetauscher (1) aus mindestens zwei Teilabschnitten (8,1 to 4, characterized in that the heat exchanger (1) consists of at least two sections (8,
9) besteht, wobei jeder Teilabschnitt (8, 9) mindestens ein9), each subsection (8, 9) having at least one
Tauscherrohr (10) aufweist, die versetzt zueinander angeordnet sind.Has exchanger tube (10) which are arranged offset from one another.
6. Wärmetauscher nach einem oder mehreren der vorangehenden Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Tauscherrohre (10) in den Teilabschnitten (8, 9) einteilig ausgebildet sind.6. Heat exchanger according to one or more of the preceding claims 1 to 5, characterized in that the exchanger tubes (10) in the sections (8, 9) are integrally formed.
7. Wärmetauscher nach Anspruch 6, dadurch gekennzeichnet, dass die Teilabschnitte (8, 9) räumlich voneinander getrennt sind.7. Heat exchanger according to claim 6, characterized in that the sections (8, 9) are spatially separated from one another.
8. Wärmetauscher nach Anspruch 6 bis 7, dadurch gekennzeichnet, dass die Trennung der Teilabschnitte (8, 9) durch einzelne Trennwände (7, 13) erfolgt.8. Heat exchanger according to claim 6 to 7, characterized in that the separation of the sections (8, 9) by individual partitions (7, 13).
9. Wärmetauscher nach einem oder mehreren der vorangehenden Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Tauscherrohre (10) teleskopartig verschiebbar sind. 9. Heat exchanger according to one or more of the preceding claims 1 to 8, characterized in that the exchanger tubes (10) are telescopically displaceable.
0. Wärmetauscher nach einem oder mehreren der vorangehenden Ansprüche 1 bis 7, dadurch gekennzeichnet, dass ein Teilabschnitt eine Baueinheit (14, 15, 16) bildet, bestehend aus mindestens einem Tauscherrohr (10) welches von einem Gehäuse0. Heat exchanger according to one or more of the preceding claims 1 to 7, characterized in that a partial section forms a structural unit (14, 15, 16) consisting of at least one exchanger tube (10) which of a housing
(17, 18, 19) umfaßt wird, wobei das Gehäuse (17, 18, 19) Befestigungsmittel (20) trägt, die das Verketten von mehreren Baueinheiten (14, 15, 16) zu einem Wärmetauscher (1) ermöglicht. (17, 18, 19), the housing (17, 18, 19) carrying fastening means (20), which enables the chaining of several units (14, 15, 16) to form a heat exchanger (1).
PCT/EP2001/007741 2000-09-26 2001-07-06 Counter current heat exchanger WO2002027255A1 (en)

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US4993484A (en) * 1989-01-17 1991-02-19 Kirkwood Community College Facilities Foundation Air to air heat exchanger
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EP0650025A1 (en) * 1993-10-21 1995-04-26 Tetra Laval Holdings & Finance SA Heat exchanger

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DE1076153B (en) * 1956-09-17 1960-02-25 Gea Luftkuehler Ges M B H Heat exchanger for gaseous media of high temperatures with several pipe bundles connected in series and media carried in cross-countercurrent
FR1285548A (en) * 1961-03-13 1962-02-23 Escher Wyss Sa Soc Pre or intermediate coolant for gas turbine installation
DE2906837A1 (en) 1979-02-22 1980-09-04 Fsl Fenster System Lueftung CONTINUOUS HEAT EXCHANGER FOR GASEOUS FLUIDUM
EP0040890A1 (en) 1980-05-22 1981-12-02 Aernoud Rudolf Könings Device for treating a fluid and method of making the same
DE3336049C2 (en) 1982-10-05 1994-06-30 Japan Vilene Co Ltd Counterflow heat exchanger
US4993484A (en) * 1989-01-17 1991-02-19 Kirkwood Community College Facilities Foundation Air to air heat exchanger
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EP0650025A1 (en) * 1993-10-21 1995-04-26 Tetra Laval Holdings & Finance SA Heat exchanger

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