EP1530016B1 - Heat exchanger, more particularly for masses for production of confectionery - Google Patents

Heat exchanger, more particularly for masses for production of confectionery Download PDF

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Publication number
EP1530016B1
EP1530016B1 EP20040025251 EP04025251A EP1530016B1 EP 1530016 B1 EP1530016 B1 EP 1530016B1 EP 20040025251 EP20040025251 EP 20040025251 EP 04025251 A EP04025251 A EP 04025251A EP 1530016 B1 EP1530016 B1 EP 1530016B1
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EP
European Patent Office
Prior art keywords
heat exchanger
outlet
inlet
guide elements
exchanger according
Prior art date
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EP20040025251
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German (de)
French (fr)
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EP1530016A3 (en
EP1530016A2 (en
Inventor
Olaf Heinicke
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Robert Bosch GmbH
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Robert Bosch GmbH
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Priority claimed from DE102004028528A external-priority patent/DE102004028528A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1530016A2 publication Critical patent/EP1530016A2/en
Publication of EP1530016A3 publication Critical patent/EP1530016A3/en
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Classifications

    • 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
    • F28D7/1669—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 an annular shape; the conduits being assembled around a central distribution tube
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media

Definitions

  • the invention relates to a heat exchanger, in particular for masses for the production of confectionery according to the preamble of claim 1.
  • a heat exchanger is from GB-A-2 005 820 known.
  • Such a heat exchanger is from the DE 696 11 840 T2 known.
  • a plurality of similar helical elements are arranged over the length of the heat exchanger, which effect a targeted guidance of the mass to be heated or to be cooled.
  • the inlet nozzle and the outlet nozzle for the mass are in each case tubular in an end region of the housing jacket of the heat exchanger, wherein no helical elements are provided in the region of the inlet and the outlet.
  • a tubular heat exchanger in the core of a spiral baffle is arranged, which is axially penetrated by a tube bundle and enclosed by a tube jacket.
  • the core and the spiral baffle consist of individual core and Umlenkblech Divisionen, which are integrally formed into one piece.
  • the heat exchanger according to the invention in particular for masses for the production of confectionery, with the characterizing features of claim 1 has the advantage that in particular in the inlet and outlet of the heat exchanger dead spaces for the mass are prevented and thereby a high product quality is possible. Furthermore, a high efficiency and high performance is achieved despite relatively simple construction. The residence time of the mass is reduced by the compact design, which also benefits the product quality.
  • the guide elements are arranged around a centrally arranged carrier element.
  • the assembly can thereby be simplified in that the guide plates can be fastened and aligned on the centrally arranged carrier element, so that the subsequent passage of the tubes through the openings on the guide plates is simplified.
  • FIG. 1 a first heat exchanger 10 is shown, as it serves in the confectionery industry for the preparation or processing of masses such as sugar / glucose solutions or the like.
  • the heat exchanger 10 has a hollow cylindrical housing shell 11, which in the FIG. 1 is only partially visible for reasons of clarity.
  • At its end faces of the housing shell 11 each have a connection flange 12, 13 which is connected to a respective closure member 14, 15.
  • the respective bell-shaped closure pieces 14, 15 have an inlet 16 and a drain 17 for a heating or cooling medium.
  • 11 are close in the housing shell the connecting flanges 12, 13 arranged an inlet nozzle 18 and a discharge nozzle 19 for the mass to be heated or cooled, which in the FIGS. 1 and 2 are shown only simplified. On the exact arrangement and training is in the context of FIGS. 4 to 6 discussed in more detail.
  • a heat exchanger insert 20 In the interior of the housing shell 11, a heat exchanger insert 20 can be used.
  • the heat exchanger insert 20 has a centrally located in the longitudinal axis of the housing shell 11, tubular support member 21 which extends between the two connecting flanges 12, 13.
  • the support element 21 can also be flowed through by the heating or cooling medium.
  • a plurality of heat exchanger tubes 23 are arranged, which each extend parallel to each other and in the connection flanges 12, 13 end, which have corresponding through holes for this purpose.
  • the heating or cooling medium is transported, namely from the direction of the inlet 16 in the direction of the outlet 17.
  • a helically shaped guide element 25 for to be heated or cooled Dimensions.
  • Adjoining the guide element 25 in the region of the inlet connection piece 18 is an inlet adapter 22 and in the region of the outlet connection piece 19 a drainage adapter 24.
  • the guide element 25 consists in the embodiment of a plurality of each half-annular shaped baffles 26, which adjoin one another and form the helical guide for the mass.
  • the baffles 26 are each welded together at their narrow end faces 27, for example, and connected without gaps on its inner circumference with the support member 21.
  • the arrangement of the baffles 26 within the housing shell 11 is such that over the entire length of the heat exchanger 10 between the inlet adapter 22 and the drain adapter 24 each have the same pitch is formed or between the individual baffles 26 is the same distance.
  • holes 28 or openings are formed according to the arrangement of the heat exchanger tubes 23 to mount the heat exchanger tubes 23 mounted on the support member 21 baffles 26 and to be able to position.
  • the respective gaps between the through holes 28 and the heat exchange tubes 23 are formed as small as possible, so that the mass is prevented from passing at the respective columns.
  • the first heat exchanger 10 operates as follows: The mass to be heated or cooled passes via the inlet port 18 into the intermediate space between the housing shell 11 and the support element 21. Since the supply of the mass is under pressure, the mass moves within the helical gears , which are bounded by the baffles 26, from the inlet nozzle 18 to the outlet pipe 19 back. During the transport through the heat exchanger 10, the mass to be heated or to be cooled is in contact with the heat exchanger tubes 23, which with a corresponding heat or cooling medium are flowed through, wherein the heat or cooling medium passes through the inlet 16 into the heat exchanger 10 and is discharged via the outlet 17 from this.
  • heat exchanger insert 31 is designed differently than the first heat exchanger 10, wherein the remaining components should be the same.
  • the heat exchanger insert 31 consists of a multiplicity of mutually identical ground-conducting elements 32 arranged one above the other.
  • Each ground-conducting element 32 has a first section 33, which is arranged perpendicular to the heat exchanger tubes 23 or parallel to the connecting flanges 12 and 13.
  • the first section is in the form of a circle segment which describes a three-quarter circle.
  • through holes 34 are formed according to the arrangement of the heat exchanger tubes.
  • the first section 33 is adjoined by a second section 35, which is designed in the form of a quarter-circle segment, and which extends obliquely to the heat exchanger tubes 23 or the connecting flanges 12 and 13.
  • Through holes 36 for the heat exchanger tubes 23 are also formed in the second section 35.
  • the two sections 33 and 35 are integrally connected to each other, wherein the preparation can be done in a simple manner by first a circular disk is made with the through holes 34 and 36, which then receives at one point to at least the center running slot after which the second portion 35 is finally bent out of the plane of the first portion 33.
  • a perpendicular to the first portion 33 extending end plate 39 is further arranged, which has the height of the upwardly bent second portion, and which protrudes with a portion 40 to above the center of the first portion 33 ,
  • the substantially triangular end plate 39 causes the desired helical or stepped flow through the second heat exchanger 30, since the mass is forced by the end plate 39, to flow along the second portion 35.
  • the second heat exchanger 30 can be produced simply by arranging a plurality of grounding elements 32 one above the other according to the desired length of the heat exchanger 30, wherein the respective end plates 39 should lie in one plane or are aligned with one another.
  • the grounding elements 32 can then be inserted into the housing shell 11a of the second heat exchanger 30, after which the heat exchanger tubes 23 can be inserted last.
  • substantially disc-shaped drain adapter 24 has a helical or helical top 42. In alignment with the bores 28 of the baffles 26, through bores 43 for receiving the heat exchanger tubes 23 are formed.
  • the bottom 44 of the drain adapter 24, however, is flat and closes with the drain flange 13 from.
  • the outer diameter of the drain adapter 24 corresponds to the outer diameter of the guide elements 25.
  • a central through hole 45 serves to receive the support element 21, so that the drain adapter 24 is received together with the heat exchanger insert 20 from the housing shell 11.
  • the drain adapter 24 has a perpendicular to the bottom 44 extending from the periphery to the through hole 45 reaching wall 46.
  • the bottom baffle 26 On the wall 46 closes according to the FIG. 5 the bottom baffle 26, wherein no steps or gaps between the wall 46 and the drain adapter 24 and the guide plate 26 are formed to effect a uniform guidance of the mass.
  • Essential to avoid dead spots in the heat exchanger 10 is that the drain 19 is aligned with the drain adapter 24 so that the one (narrow) side 49 of the outlet cross-section 48 is flush with the wall 46, while the upper side 51 and the lower side 52 of Outlet cross-section 48 approximately flush with the top 42 of the drain adapter 24 and the bottom of the bottom guide plate 26, ie at least largely avoiding steps, paragraphs o.ä. concludes.
  • the inlet adapter 22 is formed, so that even there at the inlet of the mass into the heat exchanger 10 dead spaces are avoided or minimized. It can thus be achieved from the entrance to the end of the mass in or out of the heat exchanger 10, a defined guidance of the mass under at least largely avoid dead spaces.
  • the heat exchanger 30 with a trained accordingly Supply inlet or outlet adapter.
  • the slope of the top can be formed evenly or partially stepped.

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

Description

Stand der TechnikState of the art

Die Erfindung betrifft einen Wärmetauscher, insbesondere für Massen zur Herstellung von Süßwaren nach dem Oberbegriff des Anspruchs 1. So ein Wärmetauscher ist aus der GB-A-2 005 820 bekannt.The invention relates to a heat exchanger, in particular for masses for the production of confectionery according to the preamble of claim 1. Such a heat exchanger is from GB-A-2 005 820 known.

Ein derartiger Wärmetauscher ist aus der DE 696 11 840 T2 bekannt. Bei dem bekannten Wärmetauscher sind über die Länge des Wärmetauschers mehrere gleichartige wendelförmige Elemente angeordnet, welche eine gezielte Führung der zu erwärmenden bzw. zu kühlenden Masse bewirken. Der Einlassstutzen und der Auslassstutzen für die Masse ist jeweils in einem Endbereich des Gehäusemantels des Wärmetauschers rohrförmig ausgebildet, wobei im Bereich des Einlasses und des Auslasses keine wendelförmige Elemente vorgesehen sind. Dies hat zur Folge, dass im Bereich des Einlasses und des Auslasses Toträume ausgebildet werden, in denen sich Produkt anlagern kann, so dass keine Aussage über die Verweildauer der sich in den Toträumen befindlichen Masseanteilen getroffen werden kann. Werden diese Masseanteile zusammen mit der restlichen Masse weiterverarbeitet, so leidet die Qualität des Endproduktes darunter.Such a heat exchanger is from the DE 696 11 840 T2 known. In the known heat exchanger a plurality of similar helical elements are arranged over the length of the heat exchanger, which effect a targeted guidance of the mass to be heated or to be cooled. The inlet nozzle and the outlet nozzle for the mass are in each case tubular in an end region of the housing jacket of the heat exchanger, wherein no helical elements are provided in the region of the inlet and the outlet. This has the consequence that in the region of the inlet and the outlet dead spaces are formed, in which product can accumulate, so that no statement can be made about the dwell time of the mass fractions located in the dead spaces. If these proportions of mass are further processed together with the remaining mass, the quality of the end product suffers underneath.

Aus der GB-A-2005820 ist ein Röhrenwärmetauscher bekannt, in dessen Kern ein spiralförmiges Umlenkblech angeordnet ist, das von einem Rohrbündel axial durchsetzt und von einem Rohrmantel umschlossen ist. Der Kern und das spiralförmige Umlenkblech bestehen aus einzelnen Kern- und Umlenkblechstücken, die zu einem Stück integriert ausgebildet sind.From the GB-A-2005820 is known a tubular heat exchanger, in the core of a spiral baffle is arranged, which is axially penetrated by a tube bundle and enclosed by a tube jacket. The core and the spiral baffle consist of individual core and Umlenkblechstücken, which are integrally formed into one piece.

Vorteile der ErfindungAdvantages of the invention

Der erfindungsgemäße Wärmetauscher, insbesondere für Massen zur Herstellung von Süßwaren, mit den kennzeichnenden Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, dass insbesondere im Einlass- und Auslassbereich des Wärmetauschers Toträume für die Masse verhindert werden und dadurch eine hohe Produktqualität ermöglicht wird. Weiterhin wird trotz relativ einfachen Aufbau ein hoher Wirkungsgrad und eine hohe Leistung erzielt. Die Verweilzeit der Masse wird durch die kompakte Bauweise herabsetzt, was ebenfalls der Produktqualität zugute kommt.The heat exchanger according to the invention, in particular for masses for the production of confectionery, with the characterizing features of claim 1 has the advantage that in particular in the inlet and outlet of the heat exchanger dead spaces for the mass are prevented and thereby a high product quality is possible. Furthermore, a high efficiency and high performance is achieved despite relatively simple construction. The residence time of the mass is reduced by the compact design, which also benefits the product quality.

Vorteilhafte Weiterbildungen des erfindungsgemäßen Wärmetauschers, insbesondere für Massen zur Herstellung von Süßwaren, sind in den Unteransprüchen angegeben.Advantageous developments of the heat exchanger according to the invention, in particular for masses for the production of confectionery, are specified in the subclaims.

Die Verwendung eines einstückig ausgebildeten Zulauf- bzw. Ablaufadapters ermöglicht zuglich eine einfache Aufnahme der Wärmetauschrohre .The use of an integrally formed inlet or drain adapter allows possible simple reception of the heat exchange tubes.

In einer vorteilhaften Weiterbildung der Erfindung ist es vorgesehen, die Leitelemente um ein zentral angeordnetes Trägerelement anzuordnen. Die Montage lässt sich dadurch insofern vereinfachen, als dass die Leitplatten an dem zentral angeordneten Trägerelement befestigt und ausgerichtet werden können, so dass das nachfolgende Durchführen der Rohre durch die Öffnungen an den Leitplatten vereinfacht wird.In an advantageous development of the invention, it is provided to arrange the guide elements around a centrally arranged carrier element. The assembly can thereby be simplified in that the guide plates can be fastened and aligned on the centrally arranged carrier element, so that the subsequent passage of the tubes through the openings on the guide plates is simplified.

Alternativ dazu ist es auch möglich, auf ein zentral angeordnetes Trägerelement zu verzichten und stattdessen die Leitelemente aus kreissegmentabschnittsförmigen Bauteilen zusammenzusetzen, welche jeweils parallel zu den Rohren angeordnete Abschlussplatten aufweisen.Alternatively, it is also possible to dispense with a centrally arranged carrier element and instead to assemble the guide elements of circular segment-segment-shaped components, which each have parallel to the tubes arranged end plates.

Zeichnungdrawing

Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden nachfolgend näher erläutert. Es zeigen:

  • Figur 1 eine perspektivische, teilweise geschnittene Darstellung eines ersten erfindungsgemäßen Wärmetauschers, Figur 2 eine teilweise geschnittene Seitenansicht eines zweiten erfindungsgemäßen Wärmetauschers,
  • Figur 3 einen Teil des Wärmetauschers gemäß Figur 2 in einer perspektivischen Darstellung,
  • Figur 4 den Auslassbereich eines Wärmetauschers in teilweise geschnittener, perspektivischer Ansicht,
  • Figur 5 den Auslassbereich gemäß Figur 4 ohne Auslassstutzen und
  • Figur 6 ein Adapterstück für den Auslassbereich zur Führung der Wärmetauscherrohre und Vermeidung von Toträumen in perspektivischer Ansicht.
Two embodiments of the invention are illustrated in the drawing and are explained in more detail below. Show it:
  • FIG. 1 a perspective, partially sectioned view of a first heat exchanger according to the invention, FIG. 2 a partially sectioned side view of a second heat exchanger according to the invention,
  • FIG. 3 a part of the heat exchanger according to FIG. 2 in a perspective view,
  • FIG. 4 the outlet region of a heat exchanger in a partially sectioned, perspective view,
  • FIG. 5 the outlet area according to FIG. 4 without outlet and
  • FIG. 6 an adapter piece for the outlet area for guiding the heat exchanger tubes and avoiding dead spaces in a perspective view.

Beschreibung der AusführungsbeispieleDescription of the embodiments

In der Figur 1 ist ein erster Wärmetauscher 10 dargestellt, wie er in der Süßwarenindustrie zum Herstellen bzw. Verarbeiten von Massen wie Zucker/Glukose-Lösungen oder ähnlichem dient. Der Wärmetauscher 10 weist einen hohlzylindrisch ausgebildeten Gehäusemantel 11 auf, welcher in der Figur 1 aus Gründen der Übersichtlichkeit nur teilweise sichtbar ist. An seinen Stirnseiten hat der Gehäusemantel 11 jeweils einen Anschlussflansch 12, 13, der mit jeweils einem Verschlußstück 14, 15 verbunden ist. Die jeweils glockenförmig ausgebildeten Verschlußstücke 14, 15 weisen einen Zulauf 16 bzw. einen Ablauf 17 für ein Heizoder Kühlmedium auf. Ferner sind im Gehäusemantel 11 nahe der Anschlußflansche 12, 13 ein Zulaufstutzen 18 bzw. ein Ablaufstutzen 19 für die zu erwärmende oder zu kühlende Masse angeordnet, welche in den Figuren 1 und 2 nur vereinfacht dargestellt sind. Auf deren genaue Anordnung und Ausbildung wird im Rahmen der Figuren 4 bis 6 noch näher eingegangen.In the FIG. 1 a first heat exchanger 10 is shown, as it serves in the confectionery industry for the preparation or processing of masses such as sugar / glucose solutions or the like. The heat exchanger 10 has a hollow cylindrical housing shell 11, which in the FIG. 1 is only partially visible for reasons of clarity. At its end faces of the housing shell 11 each have a connection flange 12, 13 which is connected to a respective closure member 14, 15. The respective bell-shaped closure pieces 14, 15 have an inlet 16 and a drain 17 for a heating or cooling medium. Furthermore, 11 are close in the housing shell the connecting flanges 12, 13 arranged an inlet nozzle 18 and a discharge nozzle 19 for the mass to be heated or cooled, which in the FIGS. 1 and 2 are shown only simplified. On the exact arrangement and training is in the context of FIGS. 4 to 6 discussed in more detail.

In den Innenraum des Gehäusemantels 11 ist ein Wärmetauschereinsatz 20 einsetzbar. Der Wärmetauschereinsatz 20 weist ein zentral in der Längsachse des Gehäusemantels 11 angeordnetes, rohrförmiges Stützelement 21 auf, das sich zwischen den beiden Anschlussflanschen 12, 13 erstreckt. Das Stützelement 21 kann ebenfalls von dem Heiz- bzw. Kühlmedium durchströmt sein. Im Zwischenraum zwischen dem Stützelement 21.und dem Gehäusemantel 11 sind eine Vielzahl von Wärmetauscherrohren 23 angeordnet, welche jeweils parallel zueinander verlaufen und in den Anschlussflanschen 12, 13 enden, welche hierzu entsprechende Durchgangsbohrungen aufweisen. Innerhalb der Wärmetauscherrohre 23 wird das Heiz- oder Kühlmedium transportiert und zwar aus Richtung des Zulaufes 16 in Richtung des Ablaufes 17. Weiterhin erstreckt sich im Zwischenraum zwischen dem Stützelement 21 und dem Gehäusemantel 11 ein wendelförmig ausgebildetes Leitelement 25 für die zu erwärmende bzw. zu kühlende Masse. An das Leitelement 25 schließt sich im Bereich des Zulaufstutzens 18 ein Zulaufadapter 22 und im Bereich des Ablaufstutens 19 ein Ablaufadapter 24 an.In the interior of the housing shell 11, a heat exchanger insert 20 can be used. The heat exchanger insert 20 has a centrally located in the longitudinal axis of the housing shell 11, tubular support member 21 which extends between the two connecting flanges 12, 13. The support element 21 can also be flowed through by the heating or cooling medium. In the intermediate space between the support member 21und the housing shell 11, a plurality of heat exchanger tubes 23 are arranged, which each extend parallel to each other and in the connection flanges 12, 13 end, which have corresponding through holes for this purpose. Within the heat exchanger tubes 23, the heating or cooling medium is transported, namely from the direction of the inlet 16 in the direction of the outlet 17. Furthermore, extending in the space between the support member 21 and the housing shell 11, a helically shaped guide element 25 for to be heated or cooled Dimensions. Adjoining the guide element 25 in the region of the inlet connection piece 18 is an inlet adapter 22 and in the region of the outlet connection piece 19 a drainage adapter 24.

Das Leitelement 25 besteht im Ausführungsbeispiel aus einer Vielzahl jeweils halbringförmig ausgebildeter Leitbleche 26, welche aneinander anschließen und die wendelförmige Führung für die Masse ausbilden. Dazu sind die Leitbleche 26 an ihren schmalen Stirnseiten 27 jeweils beispielsweise miteinander verschweißt und an ihrem Innenumfang mit dem Stützelement 21 lückenfrei verbunden.The guide element 25 consists in the embodiment of a plurality of each half-annular shaped baffles 26, which adjoin one another and form the helical guide for the mass. For this purpose, the baffles 26 are each welded together at their narrow end faces 27, for example, and connected without gaps on its inner circumference with the support member 21.

Im Ausführungsbeispiel ist die Anordnung der Leitbleche 26 innerhalb des Gehäusemantels 11 derart, dass über die gesamte Länge des Wärmetauschers 10 zwischen dem Zulaufadapter 22 und dem Ablaufadapter 24 jeweils die gleiche Steigung ausgebildet ist bzw. zwischen den einzelnen Leitblechen 26 jeweils derselbe Abstand besteht. Es kann jedoch auch sinnvoll sein, die Steigung des Leitelementes 25 über die Länge des Wärmetauschers 10 zu verändern. Insbesondere kann es angebracht sein, bei einer zu erwärmenden Masse die Steigung vom Zulaufstutzen 18 zum Ablaufstutzen 19 kontinuierlich oder stufenweise zu erhöhen.In the exemplary embodiment, the arrangement of the baffles 26 within the housing shell 11 is such that over the entire length of the heat exchanger 10 between the inlet adapter 22 and the drain adapter 24 each have the same pitch is formed or between the individual baffles 26 is the same distance. However, it may also be useful to change the pitch of the guide element 25 over the length of the heat exchanger 10. In particular, it may be appropriate to increase the slope of the inlet nozzle 18 to the outlet nozzle 19 continuously or stepwise in a mass to be heated.

In den Leitblechen 26 sind entsprechend der Anordnung der Wärmetauscherrohre 23 Bohrungen 28 bzw. Öffnungen ausgebildet, um die Wärmetauscherrohre 23 bei an dem Stützelement 21 montierten Leitblechen 26 montieren bzw. positionieren zu können. Dabei sind die jeweiligen Spalte zwischen den Durchgangsbohrungen 28 und den Wärmetauschrohren 23 möglichst klein ausgebildet, damit die Masse am Durchtritt an den jeweiligen Spalten gehindert ist.In the baffles 26 holes 28 or openings are formed according to the arrangement of the heat exchanger tubes 23 to mount the heat exchanger tubes 23 mounted on the support member 21 baffles 26 and to be able to position. The respective gaps between the through holes 28 and the heat exchange tubes 23 are formed as small as possible, so that the mass is prevented from passing at the respective columns.

Ergänzend wird erwähnt, dass in der Darstellung der Figur 1 der besseren Übersichtlichkeit halber lediglich ein Teil der Wärmetauscherrohre 23 dargestellt ist, während an den Leitblechen 26 alle Durchgangsbohrungen 28 dargestellt sind.In addition it is mentioned that in the representation of the FIG. 1 For better clarity, only a portion of the heat exchanger tubes 23 is shown, while on the baffles 26, all through holes 28 are shown.

Der erste Wärmetauscher 10 arbeitet wie folgt: Die zu erwärmende bzw. zu kühlende Masse gelangt über den Zulaufstutzen 18 in den Zwischenraum zwischen dem Gehäusemantel 11 und dem Stützelement 21. Da der Zulauf der Masse unter Druck erfolgt, bewegt sich die Masse innerhalb der wendelförmigen Gänge, welche von den Leitblechen 26 begrenzt sind, vom Zulaufstutzen 18 zum Ablaufstutzen 19 hin. Während des Durchtransports durch den Wärmetauscher 10 ist die zu erwärmende bzw. zu kühlende Masse dabei in Kontakt zu denn Wärmetauscherrohren 23, welche mit einem entsprechenden Wärme- oder Kühlmedium durchströmt sind, wobei das Wärme- bzw. Kühlmedium über den Zulauf 16 in den Wärmetauscher 10 gelangt und über den Ablauf 17 aus diesem abgeführt wird.The first heat exchanger 10 operates as follows: The mass to be heated or cooled passes via the inlet port 18 into the intermediate space between the housing shell 11 and the support element 21. Since the supply of the mass is under pressure, the mass moves within the helical gears , which are bounded by the baffles 26, from the inlet nozzle 18 to the outlet pipe 19 back. During the transport through the heat exchanger 10, the mass to be heated or to be cooled is in contact with the heat exchanger tubes 23, which with a corresponding heat or cooling medium are flowed through, wherein the heat or cooling medium passes through the inlet 16 into the heat exchanger 10 and is discharged via the outlet 17 from this.

Bei dem in den Figuren 2 und 3 dargestellten zweiten Wärmetauscher 30 ist der im Gehäusemantel 11a angeordnete Wärmetauschereinsatz 31 anders ausgebildet als beim ersten Wärmetauscher 10, wobei die übrigen Bauteile gleich sein sollen. Der Wärmetauschereinsatz 31 besteht beim zweiten Wärmetauscher 30 aus einer Vielzahl von übereinander angeordneten, jeweils identischen Masseleitelementen 32.In the in the Figures 2 and 3 illustrated second heat exchanger 30 of the arranged in the housing shell 11a heat exchanger insert 31 is designed differently than the first heat exchanger 10, wherein the remaining components should be the same. In the case of the second heat exchanger 30, the heat exchanger insert 31 consists of a multiplicity of mutually identical ground-conducting elements 32 arranged one above the other.

Jedes Masseleitelement 32 hat einen ersten Abschnitt 33, welcher senkrecht zu den Wärmetauscherrohren 23 bzw. parallel zu den Anschlussflanschen 12 und 13 angeordnet ist. Der erste Abschnitt ist in Form eines Kreissegmentes ausgebildet, welches einen Dreiviertelkreis beschreibt. Im ersten Abschnitt 33 sind entsprechend der Anordnung der Wärmetauscherrohre 23 Durchgangsbohrungen 34 ausgebildet. An den ersten Abschnitt 33 schließt sich ein zweiter Abschnitt 35 an, welcher in Form eines Viertelkreissegmentes ausgebildet ist, und welcher schräg zu den Wärmetauscherrohren 23 bzw. den Anschlussflanschen 12 und 13 verläuft. Auch im zweiten Abschnitt 35 sind Durchgangsbohrungen 36 für die Wärmetauscherrohre 23 ausgebildet. Die beiden Abschnitte 33 und 35 sind einstückig miteinander verbunden, wobei die Herstellung auf einfache Art und Weise dadurch erfolgen kann, dass zunächst eine Kreisscheibe mit den Durchgangsbohrungen 34 und 36 hergestellt wird, welche anschließend an einer Stelle einen bis mindestens zum Mittelpunkt verlaufenden Schlitz erhält, wonach zuletzt der zweite Abschnitt 35 aus der Ebene des ersten Abschnitts 33 gebogen wird.Each ground-conducting element 32 has a first section 33, which is arranged perpendicular to the heat exchanger tubes 23 or parallel to the connecting flanges 12 and 13. The first section is in the form of a circle segment which describes a three-quarter circle. In the first section 33 23 through holes 34 are formed according to the arrangement of the heat exchanger tubes. The first section 33 is adjoined by a second section 35, which is designed in the form of a quarter-circle segment, and which extends obliquely to the heat exchanger tubes 23 or the connecting flanges 12 and 13. Through holes 36 for the heat exchanger tubes 23 are also formed in the second section 35. The two sections 33 and 35 are integrally connected to each other, wherein the preparation can be done in a simple manner by first a circular disk is made with the through holes 34 and 36, which then receives at one point to at least the center running slot after which the second portion 35 is finally bent out of the plane of the first portion 33.

An der einen, geradlinigen Abschlusskante 38 des zweiten Abschnitts 35 ist weiterhin ein senkrecht zum ersten Abschnitt 33 verlaufendes Abschlussblech 39 angeordnet, welches die Höhe des nach oben gebogenen zweiten Abschnitts aufweist, und welches mit einem Teilabschnitt 40 bis über die Mitte des ersten Abschnitts 33 hinausragt. Das im Wesentlichen dreiecksförmige Abschlussblech 39 bewirkt die gewünschte wendel- bzw. stufenförmige Durchströmung des zweiten Wärmetauschers 30, da die Masse vom Abschlußblech 39 gezwungen wird, entlang des zweiten Abschnitts 35 zu strömen.On the one, rectilinear end edge 38 of the second portion 35, a perpendicular to the first portion 33 extending end plate 39 is further arranged, which has the height of the upwardly bent second portion, and which protrudes with a portion 40 to above the center of the first portion 33 , The substantially triangular end plate 39 causes the desired helical or stepped flow through the second heat exchanger 30, since the mass is forced by the end plate 39, to flow along the second portion 35.

Der zweite Wärmetauscher 30 lässt sich einfach dadurch herstellen, indem entsprechend der gewünschten Länge des Wärmetauschers 30 mehrere Masseleitelemente 32 übereinander angeordnet werden, wobei die jeweiligen Abschlussbleche 39 in einer Ebene liegen sollten bzw. zueinander fluchten. Die Masseleitelemente 32 lassen sich anschließend in den Gehäusemantel 11a des zweiten Wärmetauschers 30 einführen, wonach zuletzt die Wärmetauscherrohre 23 eingesetzt werden können.The second heat exchanger 30 can be produced simply by arranging a plurality of grounding elements 32 one above the other according to the desired length of the heat exchanger 30, wherein the respective end plates 39 should lie in one plane or are aligned with one another. The grounding elements 32 can then be inserted into the housing shell 11a of the second heat exchanger 30, after which the heat exchanger tubes 23 can be inserted last.

In den Figuren 4 bis 6 ist der Ablaufbereich des Wärmetauschers 10 näher dargestellt. Der in der Figur 6 separat dargestellte, im wesentlichen scheibenförmige Ablaufadapter 24 weist eine schnecken- bzw. wendelförmige Oberseite 42 auf. Fluchtend zu den Bohrungen 28 der Leitbleche 26 sind Durchgangsbohrungen 43 zur Aufnahme der Wärmetauscherrohre 23 ausgebildet. Die Unterseite 44 des Ablaufadapters 24 ist hingegen eben ausgebildet und schließt mit dem Ablaufflansch 13 ab. Der Außendurchmesser des Ablaufadapters 24 entspricht dem Außendurchmesser der Leitelemente 25. Ein zentrales Durchgangsloch 45 dient der Aufnahme des Stützelements 21, so dass der Ablaufadapter 24 zusammen mit dem Wärmetauschereinsatz 20 vom Gehäusemantel 11 aufgenommen ist.In the FIGS. 4 to 6 the drainage area of the heat exchanger 10 is shown in more detail. The Indian FIG. 6 shown separately, substantially disc-shaped drain adapter 24 has a helical or helical top 42. In alignment with the bores 28 of the baffles 26, through bores 43 for receiving the heat exchanger tubes 23 are formed. The bottom 44 of the drain adapter 24, however, is flat and closes with the drain flange 13 from. The outer diameter of the drain adapter 24 corresponds to the outer diameter of the guide elements 25. A central through hole 45 serves to receive the support element 21, so that the drain adapter 24 is received together with the heat exchanger insert 20 from the housing shell 11.

Infolge der Steigung der Oberseite 42 weist der Ablaufadapter 24 eine senkrecht zur Unterseite 44 verlaufende, vom Umfang bis zum Durchgangsloch 45 reichende Wand 46 auf. An die Wand 46 schließt sich entsprechend der Figur 5 das unterste Leitblech 26 an, wobei keine Stufen oder Lücken zwischen der Wand 46 bzw. dem Ablaufadapter 24 und dem Leitblech 26 ausgebildet sind, um eine gleichmäßige Führung der Masse zu bewirken.As a result of the slope of the top 42, the drain adapter 24 has a perpendicular to the bottom 44 extending from the periphery to the through hole 45 reaching wall 46. On the wall 46 closes according to the FIG. 5 the bottom baffle 26, wherein no steps or gaps between the wall 46 and the drain adapter 24 and the guide plate 26 are formed to effect a uniform guidance of the mass.

Wie insbesondere aus den Figuren 4 und 5 erkennbar ist, weist der Ablauf 19 auf der dem Ablaufadapter 24 zugewandten Seite einen rechteckförmigen Auslaufquerschnitt 48 mit gerundeten Ecken auf, welcher auf der dem Ablaufadapter 24 abgewandten Seite in einen kreisförmigen Querschnitt übergeht, um den Anschluß einer (nicht dargestellten) Ablaufleitung zu ermöglichen. Wesentlich zur Vermeidung von Toträumen im Wärmetauscher 10 ist, dass der Ablauf 19 so mit dem Ablaufadapter 24 ausgerichtet, dass die eine (schmale) Seite 49 des Auslaufquerschnitts 48 bündig mit der Wand 46 abschließt, während die obere Seite 51 und die untere Seite 52 des Auslaufquerschnitts 48 in etwa mit der Oberseite 42 des Ablaufadapters 24 bzw. der Unterseite des untersten Leitbleches 26 bündig, d.h. unter zumindest weitgehender Vermeidung von Stufen, Absätzen o.ä. abschließt.As in particular from the FIGS. 4 and 5 can be seen, the drain 19 on the drain adapter 24 side facing a rectangular outlet cross-section 48 with rounded corners, which merges on the side facing the drain adapter 24 side in a circular cross section to allow the connection of a (not shown) drain line. Essential to avoid dead spots in the heat exchanger 10 is that the drain 19 is aligned with the drain adapter 24 so that the one (narrow) side 49 of the outlet cross-section 48 is flush with the wall 46, while the upper side 51 and the lower side 52 of Outlet cross-section 48 approximately flush with the top 42 of the drain adapter 24 and the bottom of the bottom guide plate 26, ie at least largely avoiding steps, paragraphs o.ä. concludes.

Sinngemäß zum Ablaufadapter 24 ist der Zulaufadapter 22 ausgebildet, so dass auch dort beim Zulauf der Masse in den Wärmetauscher 10 Toträume vermieden bzw. minimiert werden. Es läßt sich somit vom Eintritt bis zum Ablauf der Masse in bzw. aus dem Wärmetauscher 10 eine definierte Führung der Masse unter zumindest weitgehender Vermeidung von Toträumen erzielen.Analogously to the outlet adapter 24, the inlet adapter 22 is formed, so that even there at the inlet of the mass into the heat exchanger 10 dead spaces are avoided or minimized. It can thus be achieved from the entrance to the end of the mass in or out of the heat exchanger 10, a defined guidance of the mass under at least largely avoid dead spaces.

Selbstverständlich ist es auch denkbar bzw. vorgesehen, den Wärmetauscher 30 mit einem entsprechend ausgebildeten Zulauf- bzw. Ablaufadapter auszustatten. Die Steigung der Oberseite kann gleichmäßig oder bereichsweise stufenförmig ausgebildet sein.Of course, it is also conceivable or intended, the heat exchanger 30 with a trained accordingly Supply inlet or outlet adapter. The slope of the top can be formed evenly or partially stepped.

Selbstverständlich ist es denkbar, im Rahmen der Erfindung die beschriebenen Wärmetauscher 10, 30 zu modifizieren bzw. abzuwandeln, ohne vom Erfindungsgedanken abzuweichen. Insbesondere ist es auch denkbar, die Zuläufe des Heiz- oder Kühlmediums an anderer Stelle oder anders als in den beschriebenen Ausführungsformen auszubilden.Of course, it is conceivable within the scope of the invention to modify or modify the heat exchangers 10, 30 described, without deviating from the idea of the invention. In particular, it is also conceivable to design the inlets of the heating or cooling medium elsewhere or differently than in the described embodiments.

Claims (9)

  1. Heat exchanger (10; 30), in particular for masses for the production of confectionery articles, with a preferably cylindrically designed housing jacket (11; 11a) which is closed on each of its end faces by a closing piece (14, 15), with, for the mass, an inlet (18) arranged in the respective end region of the housing jacket (11; 11a) and having an inlet cross section and an outlet (19) having an outlet cross section (48), and with tubes (23), arranged parallel to one another between the closing pieces (14, 15), for conducting a heating or cooling medium and with helical guide elements (22, 24, 25; 32, 33, 35), arranged inside the housing (11; 11a), for routing the mass to be heated or to be cooled, the guide elements (22, 24, 25; 32, 33, 35) having bores (28, 43; 34, 36) for leading through the tubes (23), the guide elements (22, 24) extending into the region of the inlet (18) and of the outlet (19), characterized in that the guide elements (25) are followed in the region of the inlet (18) by an inflow adapter (22) and in the region of the outlet (19) by an outflow adapter (24), in each case with a boundary wall (42, 46), the outlet (19) and inlet (18) being aligned respectively with the outflow adapter (24) and inflow adapter (22), for the avoidance of dead spaces, such that the outlet or inlet cross section (48) laterally terminates flush with the boundary wall (46), while an upper side (51) and a lower side (52) of the outlet or inlet cross section (48) terminate flush with the guide elements (25) so as at least largely to avoid steps and shoulders.
  2. Heat exchanger according to Claim 1, characterized in that the boundary wall (46) of the inflow or outflow adapter (22, 24) points towards the centre point.
  3. Heat exchanger according to Claim 2, characterized in that the inflow or outflow adapter (22,24) is designed as a solid body.
  4. Heat exchanger according to one of Claims 1 to 3, characterized in that the inlet and the outlet cross section (48) of the inlet (18) and of the outlet (19) respectively are of essentially rectangular design on the side facing the heat exchanger (10; 30).
  5. Heat exchanger according to either one of Claims 3 and 4, characterized in that a carrier element (21) is arranged between the closing pieces (14, 15) along the longitudinal axis of the housing jacket (11), in that the guide elements (22, 24, 25) are arranged in the interspace between the carrier element (21) and the housing jacket (11), and in that some of the guide elements (25) are designed as ring segments (26) which are fastened to the carrier element (21).
  6. Heat exchanger according to Claim 5, characterized in that the carrier element (21), together with the ring segments (26), forms an installation unit (20) which can be inserted into the housing jacket (11).
  7. Heat exchanger according to Claim 1, characterized in that the guide elements (33, 35) in each case form a unit (32), and in that a plurality of identical units (32) can be assembled according to the length of the housing jacket (11a) and can be inserted as an installation unit (31) into the housing jacket (11a).
  8. Heat exchanger according to Claim 7, characterized in that the guide elements (32) have in each case a first portion (33) arranged perpendicularly to the tubes (23) and a second portion (35) arranged obliquely to the tubes (23), in that the first portion (33) is designed as a three-quarter circle segment and the second portion (35) as a quarter circle segment, and in that there is arranged in the region of the second portion (35) in each case a closing plate (39) which is connected sealingly to the latter at a closing edge (38) and which runs parallel to the tubes (23), all the closing plates (39) of the installation unit (31) being in alignment with one another.
  9. Heat exchanger according to one of Claims 1 to 8, characterized in that the gradient of the guide elements (22, 24, 25; 35) is variable over the length of the heat exchanger (10; 10a).
EP20040025251 2003-11-05 2004-10-23 Heat exchanger, more particularly for masses for production of confectionery Active EP1530016B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10351505 2003-11-05
DE10351505 2003-11-05
DE102004028528A DE102004028528A1 (en) 2003-11-05 2004-06-11 Heat exchangers, in particular for masses for the production of confectionery
DE102004028528 2004-06-11

Publications (3)

Publication Number Publication Date
EP1530016A2 EP1530016A2 (en) 2005-05-11
EP1530016A3 EP1530016A3 (en) 2008-12-17
EP1530016B1 true EP1530016B1 (en) 2010-03-31

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004012607B4 (en) * 2004-03-12 2008-05-08 Klöckner Hänsel Processing GmbH Apparatus and method for the thermal treatment of confectionery masses

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1335506A (en) * 1917-07-16 1920-03-30 Griscom Russell Co Oil-cooler
FR609045A (en) * 1925-03-03 1926-08-06 Griscom Russell Co heat exchanger
DE2744263C3 (en) 1977-10-01 1982-01-07 Funke Wärmeaustauscher Apparatebau KG, 3212 Gronau Tubular heat exchanger

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EP1530016A2 (en) 2005-05-11

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