EP0867666A1 - Heat exchanger and pipe for making such a heat exchanger - Google Patents

Heat exchanger and pipe for making such a heat exchanger Download PDF

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Publication number
EP0867666A1
EP0867666A1 EP98200884A EP98200884A EP0867666A1 EP 0867666 A1 EP0867666 A1 EP 0867666A1 EP 98200884 A EP98200884 A EP 98200884A EP 98200884 A EP98200884 A EP 98200884A EP 0867666 A1 EP0867666 A1 EP 0867666A1
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EP
European Patent Office
Prior art keywords
tube
heat exchanger
longitudinal rib
exchanger according
transverse slots
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98200884A
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German (de)
French (fr)
Inventor
Paulus Jacobus Vloon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nefit Fasto BV
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Nefit Fasto BV
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Filing date
Publication date
Application filed by Nefit Fasto BV filed Critical Nefit Fasto BV
Publication of EP0867666A1 publication Critical patent/EP0867666A1/en
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled

Definitions

  • the invention relates to a gas heat exchanger, in particular for a combustion device, with a helically or spirally wound tube with directly lying pipe windings for formation a space for a heating gas such as a combustion gas.
  • the invention further relates to a tube for Manufacture of such a heat exchanger.
  • the water space of a heat exchanger can consist of one Metal jacket, but also from a screw or spiral Pipe winding exist. With a pipe winding the individual windings lie directly on top of each other. she form a cylindrical space which, at one Incinerator, the combustion chamber and surrounds at least part of the combustion gas exhaust.
  • the pipe winding is made from one Round tube that can be easily screwed or Spiral shape can wrap, and the windings after they have been wound according to a screw or spiral shape are on top of each other and are along a line touch.
  • the enclosed space is therefore exclusive sealed to the outside along this line, and therefore it cannot be completely ruled out that heating gas is out exits the water space.
  • the pipe windings must therefore be provided with an outer jacket.
  • the present invention has an object To provide heat exchangers of the type mentioned at the beginning, in which the heat transfer from the heating gas to the water in the Pipe winding is optimized, and in which the of the Pipe winding surrounding space is largely sealed.
  • the heat exchanger according to the invention is thereby characterized in that the pipe in the area of the heating gas space has a longitudinal rib interrupted by transverse slots.
  • a tube with a longitudinal rib can be easily by extrusion.
  • the longitudinal rib shows in predetermined distances cross slots so that they are in the plane of the longitudinal rib can wrap. Become one with one such a tube provided on a suitable Heated temperature so it can be easily wound will.
  • the transverse slots are preferably from the base V-shaped and directed outwards.
  • the rib therefore does not resist winding. If the The slots are wide enough Flow areas for the heating gases also in the wound Condition still wide enough.
  • the wound single tube of described type can also be one of two spaced Pipes with an intermediate one, with transverse slots provided longitudinal rib existing double tube for use come.
  • the transverse slots preferably extend between one and the other tube. The intervening remaining parts of the longitudinal rib alternating in different directions from the plane of the Longitudinal rib bent out and thus protrude into the heating gas flow inside.
  • the Windings with a rectangular tube shape, flat on each other. This creates between the pipe parts, along the helical or spiral course, instead a linear contact a flat contact. This leads to a completely closed water space, with sufficient sealing to prevent heating gases from escaping prevent. The seal can continue to do so be improved so that the superimposed surfaces of the Intertwine windings by means of profiling.
  • the tube is preferably made of an extruded aluminum profile.
  • the with molded longitudinal rib and the necessary slots in the longitudinal rib provided single or Double pipe can be extruded very easily getting produced.
  • the winding of the tube is after Heating to a suitable temperature, also none Problem.
  • the heat exchanger has a water space in the form a wound tube (1) (Fig. 1-4) or one Double tube 1 '(Fig. 5-7) with a relatively small water volume on.
  • the heat exchanger forms a combustion chamber 2, into which a burner 3 protrudes, and one Combustion gas exhaust 4.
  • the pipe 1 or double pipe 1 ' consists of a preferably a rectangular cross section having extruded aluminum profile, and has a longitudinal rib 5 (Fig. 4, stage A). After this Cross-slits 6 are extruded into this longitudinal rib 5 shaped (Fig. 4, stage B and Fig. 7). Between these Cross slots 6 remain parts 5 'as the remaining parts of the original longitudinal rib 5 left.
  • the tube 1 is then in the plane of the rib wound (Fig. 1-4) or one Double tube 1 '(Fig. 5-7) with a relatively small water volume on.
  • the heat exchanger forms a combustion chamber 2, into which a burner 3 protrudes, and one Combustion gas exhaust 4.
  • stage C Here engage the parts 5 'of the longitudinal rib 5 into each other. she can in the middle of the combustion gas exhaust 4 more overlap or less (Fig. 1). An important aspect is that the direction of the gas flow is constantly changing, and that no core flow occurs in the combustion gas exhaust.
  • the double tube 1 ' is shown in FIG. 5 in the plane of Tube wrapped.
  • the protrude into opposite Directions of parts 5 'bent apart with transverse slots 6 provided longitudinal rib 5 in the combustion gas exhaust 4.
  • the superimposed surfaces of the windings, for the purpose better sealing, by means of a profiling like this complementary mesh as shown in Fig. 2 is.

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

Abstract

The exchanger has a screw-line or spirally wound tube (1) with windings located directly on one another for formation of a space (4) for hot gas. The tube in the area of the hot gas space has a longitudinal rib (5) containing cross slots. The parts (5') of the longitudinal rib located between the cross slots extend in a compartmental fashion adjacently to one another and one above the other into the hot gas space. The tube is formed as a double unit consisting of two spaced apart tubes with a longitudinal rib between them provided with cross slots. The cross slots extend parallel to one another between the one and the other tube and the intermediate parts (5') of the longitudinal rib are alternatingly bent outwards from the plane of the rib in various directions, extending into the hot gas space.

Description

Gegenstand der Erfindung ist ein Gas-Wärmetauscher, insbesondere für eine Verbrennungsvorrichtung, mit einem schraubenlinien- oder spiralförmig gewickeltem Rohr mit direkt aufeinander liegenden Rohrwicklungen zur Bildung eines Raums für ein Heizgas, wie etwa ein Verbrennungsgas. Gegenstand der Erfindung ist weiterhin ein Rohr zur Herstellung eines derartigen Wärmetauschers.The invention relates to a gas heat exchanger, in particular for a combustion device, with a helically or spirally wound tube with directly lying pipe windings for formation a space for a heating gas such as a combustion gas. The invention further relates to a tube for Manufacture of such a heat exchanger.

Der Wasserraum eines Wärmetauschers kann aus einem Metallmantel, aber auch aus einer schrauben- oder spiralförmigen Rohrwicklung bestehen. Bei einer Rohrwicklung liegen die einzelnen Wicklungen direkt aufeinander. Sie bilden einen zylinderförmigen Raum, der, bei einer Verbrennungsvorrichtung, die Verbrennungskammer und zumindest einen Teil des Verbrennungsgasabzugs umgibt.The water space of a heat exchanger can consist of one Metal jacket, but also from a screw or spiral Pipe winding exist. With a pipe winding the individual windings lie directly on top of each other. she form a cylindrical space which, at one Incinerator, the combustion chamber and surrounds at least part of the combustion gas exhaust.

Üblicherweise wird die Rohrwicklung aus einem runden Rohr hergestellt, das sich leicht in Schrauben- oder Spiralform wickeln läßt, und wobei die Wicklungen, nachdem sie nach einer Schrauben- oder Spiralform gewickelt worden sind, aufeinanderliegen und sich entlang einer Linie berühren. Der umschlossene Raum ist deshalb ausschließlich entlang dieser Linie nach außen hin abgedichtet, und deshalb läßt sich nicht ganz ausschließen, daß Heizgas aus dem Wasserraum austritt. Die Rohrwicklungen müssen deshalb mit einem Außenmantel versehen werden.Usually the pipe winding is made from one Round tube that can be easily screwed or Spiral shape can wrap, and the windings after they have been wound according to a screw or spiral shape are on top of each other and are along a line touch. The enclosed space is therefore exclusive sealed to the outside along this line, and therefore it cannot be completely ruled out that heating gas is out exits the water space. The pipe windings must therefore be provided with an outer jacket.

Vorliegende Erfindung hat zur Aufgabe, einen Wärmetauscher der Eingangs genannten Art bereitzustellen, bei dem die Wärmeübertragung vom Heizgas zum Wasser in der Rohrwicklung optimalisiert ist, und bei dem der von der Rohrwicklung umgebene Raum weitgehendend abgedichtet ist.The present invention has an object To provide heat exchangers of the type mentioned at the beginning, in which the heat transfer from the heating gas to the water in the Pipe winding is optimized, and in which the of the Pipe winding surrounding space is largely sealed.

Der erfindungsgemäße Wärmetauscher ist dazu dadurch gekennzeichnet, daß das Rohr im Bereich des Heizgasraumes eine von Querschlitzen unterbrochene Längsrippe aufweist. Ein derartiges Rohr mit einer Längsrippe läßt sich leicht durch Extrudieren herstellen. Die Längsrippe weist in vorbestimmten Abständen Querschlitze auf, damit sie sich in der Ebene der Längsrippe wickeln läßt. Wird ein mit einer derartigen Rippe versehenes Rohr auf eine geeignete Temperatur erhitzt, so kann es ohne weiteres gewickelt werden.The heat exchanger according to the invention is thereby characterized in that the pipe in the area of the heating gas space has a longitudinal rib interrupted by transverse slots. Such a tube with a longitudinal rib can be easily by extrusion. The longitudinal rib shows in predetermined distances cross slots so that they are in the plane of the longitudinal rib can wrap. Become one with one such a tube provided on a suitable Heated temperature so it can be easily wound will.

Die Querschlitze sind vorzugsweise vom Ansatz aus V-förmig ausgebildet und nach außen gerichtet. Die Rippe leistet somit keinen Widerstand beim Wickeln. Wenn die Schlitze breit genug ausgebildet sind, sind die Strömungsbereiche für die Heizgase auch im gewickelten Zustand noch breit genug. Die restlichen Teile der Längsrippe, die sich zwischen den Querschlitzen befinden, greifen fächerförmig ineinander. Die Heizgase umströmen diese Rippenteile aus unterschiedlichen Richtungen, so daß die Rippenteile erhitzt werden und die Wärme an das Wasser in der Rohrwicklung abgegeben wird.The transverse slots are preferably from the base V-shaped and directed outwards. The rib therefore does not resist winding. If the The slots are wide enough Flow areas for the heating gases also in the wound Condition still wide enough. The remaining parts of the Longitudinal rib, which are located between the transverse slots, interlock in a fan shape. Flow around the heating gases these rib parts from different directions, so that the rib parts are heated and the heat to the water is released in the pipe winding.

Als Alternative zum gewickelten Einzelrohr der beschriebenen Art, kann auch ein aus zwei beabstandeten Rohren mit einer dazwischenliegenden, mit Querschlitzen versehenen Längsrippe bestehendes Doppelrohr zum Einsatz kommen. Dabei erstrecken die Querschlitze sich vorzugsweise zwischen dem einem und dem anderen Rohr. Die dazwischenliegenden restlichen Teile der Längsrippe werden abwechselnd in verschiedene Richtungen aus der Ebene der Längsrippe herausgebogen und ragen somit in den Heizgasstrom hinein.As an alternative to the wound single tube of described type, can also be one of two spaced Pipes with an intermediate one, with transverse slots provided longitudinal rib existing double tube for use come. The transverse slots preferably extend between one and the other tube. The intervening remaining parts of the longitudinal rib alternating in different directions from the plane of the Longitudinal rib bent out and thus protrude into the heating gas flow inside.

Durch das Wickeln wechseln sich in den beiden oben beschriebenen Fällen die restlichen Rippenteile und die Querschlitze im Prinzip auf unregelmäßige Weise ab. Somit wird in einem daran entlang strömenden Heizgas ein starker Wirbel erzeugt. Aufgrund der relativ großen Rippenoberfläche findet außerdem eine besonders wirksame Wärmeübertragung statt.The winding alternates in the two above cases described the remaining rib parts and the Cross slits in principle from irregular. Consequently becomes a strong one in a heating gas flowing along it Vortex generated. Because of the relatively large rib surface also finds a particularly effective heat transfer instead of.

Bei einer bevorzugten Ausführungsform liegen die Wicklungen, bei einer rechteckigen Rohrform, flach aufeinander. Somit entsteht zwischen den Rohrteilen, entlang des schrauben- oder spiralförmigen Verlaufs, statt eines linienförmigen Kontakts ein flächenförmiger Kontakt. Dies führt zu einem rundum geschlossenen Wasserraum, mit ausreichender Abdichtung um das Austreten von Heizgasen zu verhindern. Die Abdichtung kann weiterhin dadurch verbessert werden, daS die aufeinanderliegenden Flächen der Wicklungen mittels einer Profilierung ineinandergreifen.In a preferred embodiment, the Windings, with a rectangular tube shape, flat on each other. This creates between the pipe parts, along the helical or spiral course, instead a linear contact a flat contact. This leads to a completely closed water space, with sufficient sealing to prevent heating gases from escaping prevent. The seal can continue to do so be improved so that the superimposed surfaces of the Intertwine windings by means of profiling.

Das Rohr besteht vorzugsweise aus einem Aluminium-Stranggußprofil. Das mit angeformter Längsrippe und den notwendigen Schlitzen in der Längsrippe versehene Einzel- bzw. Doppelrohr kann sehr leicht durch Extrudieren hergestellt werden. Das Wickeln des Rohres ist, nach Erhitzung auf eine geeignete Temperatur, ebenfalls kein Problem.The tube is preferably made of an extruded aluminum profile. The with molded longitudinal rib and the necessary slots in the longitudinal rib provided single or Double pipe can be extruded very easily getting produced. The winding of the tube is after Heating to a suitable temperature, also none Problem.

Aufgrund des verwendeten Materials und der gezielten Strömung an der Heizgas- und Wasserseite, ist der Wärmetauscher hervorragend zum Einsatz mit einer Verbrennungsvorrichtung geeignet.Because of the material used and the targeted flow on the heating gas and water side is the Heat exchanger excellent for use with a Combustion device suitable.

Die Erfindung wird anhand der beigefügten Zeichnung eines für eine Verbrennungsvorrichtung vorgesehenen Wärmetauschers näher erläutert. In der Zeichnung zeigt:

  • Fig. 1 schematisch einen Querschnitt eines erfindungsgemäßen Wärmetauschers;
  • Fig. 2 das Detail II der Fig. 1 in einer alternativen Ausführungsform;
  • Fig. 3 einen Querschnitt eines extrudierten Rohres;
  • Fig. 4 eine Draufsicht des Rohres aus Fig. 3 in drei Stadien;
  • Fig. 5 schematisch einen Querschnitt einer anderen Ausführungsform eines erfindungsgemäßen Wärmetauschers mit Doppelrohr;
  • Fig. 6 einen Querschnitt des Doppelrohres; und
  • Fig. 7 eine Seitenansicht des Doppelrohrs aus Fig. 6.
    • The invention is explained in more detail with reference to the accompanying drawing of a heat exchanger provided for a combustion device. The drawing shows:
  • Fig. 1 shows schematically a cross section of a heat exchanger according to the invention;
  • Fig. 2 shows detail II of Fig. 1 in an alternative embodiment;
  • 3 shows a cross section of an extruded tube;
  • FIG. 4 shows a top view of the tube from FIG. 3 in three stages;
  • 5 schematically shows a cross section of another embodiment of a heat exchanger according to the invention with a double tube;
  • 6 shows a cross section of the double tube; and
  • FIG. 7 shows a side view of the double tube from FIG. 6.

    • In den Figuren sind gleiche Teile oder Teile mit gleicher Funktion durch gleiche Bezugszahlen gekennzeichnet.The same parts or parts are shown in the figures same function identified by the same reference numbers.

    Der Wärmetauscher weist einen Wasserraum in Form eines gewickelten Rohres (1) (Fig. 1-4) bzw. eines Doppelrohres 1' (Fig. 5-7) mit relativ geringem Wasservolumen auf. Der Wärmetauscher bildet einen Verbrennungsraum 2, in die ein Brenner 3 hineinragt, und einen Verbrennungsgasabzug 4. Das Rohr 1 bzw. Doppelrohr 1' besteht aus einem vorzugsweise einen rechteckigen Querschnitt aufweisenden Aluminium-Strangpreßprofil, und weist eine Längsrippe 5 (Fig. 4, Stadium A) auf. Nach dem Extrudieren werden Querschlitze 6 in diese Längsrippe 5 geformt (Fig. 4, Stadium B und Fig. 7). Zwischen diesen Querschlitzen 6 bleiben Teile 5' als restliche Teile der ursprünglichen Längsrippe 5 übrig. Das Rohr 1 wird dann in der Ebene der Rippe gewickelt (Fig. 4, Stadium C). Dabei greifen die Teile 5' der Längsrippe 5 ineinander. Sie können sich in der Mitte des Verbrennungsgasabzugs 4 mehr oder weniger überlappen (Fig. 1). Ein wichtiger Aspekt ist, daß die Richtung des Gasstroms sich dauerend ändert, und daß keine Kernströmung im Verbrennungsgasabzug auftritt.The heat exchanger has a water space in the form a wound tube (1) (Fig. 1-4) or one Double tube 1 '(Fig. 5-7) with a relatively small water volume on. The heat exchanger forms a combustion chamber 2, into which a burner 3 protrudes, and one Combustion gas exhaust 4. The pipe 1 or double pipe 1 ' consists of a preferably a rectangular cross section having extruded aluminum profile, and has a longitudinal rib 5 (Fig. 4, stage A). After this Cross-slits 6 are extruded into this longitudinal rib 5 shaped (Fig. 4, stage B and Fig. 7). Between these Cross slots 6 remain parts 5 'as the remaining parts of the original longitudinal rib 5 left. The tube 1 is then in the plane of the rib wound (Fig. 4, stage C). Here engage the parts 5 'of the longitudinal rib 5 into each other. she can in the middle of the combustion gas exhaust 4 more overlap or less (Fig. 1). An important aspect is that the direction of the gas flow is constantly changing, and that no core flow occurs in the combustion gas exhaust.

    Das Doppelrohr 1' wird nach Fig. 5 in der Ebene des Rohres gewickelt. Dabei ragen die in entgegengesetzte Richtungen auseinandergebogenen Teile 5' der mit Querschlitzen 6 versehenen Längsrippe 5 in den Verbrennungsgasabzug 4. Auch in dieser Ausführungsform können die aufeinanderliegenden Flächen der Wicklungen, zwecks besserer Abdichtung, mittels einer Profilierung so komplementär ineinandergreifen wie es in Fig. 2 dargestellt ist.The double tube 1 'is shown in FIG. 5 in the plane of Tube wrapped. The protrude into opposite Directions of parts 5 'bent apart with transverse slots 6 provided longitudinal rib 5 in the combustion gas exhaust 4. Also in this embodiment, the superimposed surfaces of the windings, for the purpose better sealing, by means of a profiling like this complementary mesh as shown in Fig. 2 is.

    Claims (9)

    Gas-Wärmetauscher, insbesondere für eine Verbrennungsvorrichtung, mit einem schraubenlinien- oder spiralförmig gewickeltem Rohr mit direkt aufeinander liegenden Rohrwicklungen zur Bildung eines Raums für ein Heizgas, dadurch gekennzeichnet, daß das Rohr (1) im Bereich des Heizgasraumes (4) eine von Querschlitzen (6) unterbrochene Längsrippe (5) aufweist.Gas heat exchanger, especially for one Incinerator, with a helical or spirally wound tube with directly on top of each other lying pipe windings to form a space for a Heating gas, characterized in that the tube (1) in Area of the heating gas chamber (4) one of transverse slots (6) Broken longitudinal rib (5). Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß die Querschlitze (6) V-förmig ausgebildet sind.Heat exchanger according to claim 1, characterized in that the transverse slots (6) are V-shaped are. Wärmetauscher nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Teile (5') der Längsrippe (5), die sich zwischen den Querschlitzen (6) befinden, sich fächerförmig neben- und übereinander in den Heizgasraum (4) erstrecken.Heat exchanger according to claim 1 or 2, characterized characterized in that the parts (5 ') of the longitudinal rib (5), the are located between the transverse slots (6), fan-shaped side by side and one above the other in the heating gas room (4) extend. Wärmetauscher nach einem der Ansprüche 1-3, dadurch gekennzeichnet, daß das Rohr als aus zwei beabstandeten Rohren mit einer dazwischenliegenden, mit Querschlitzen (6) versehenen Längsrippe (5) bestehendes Doppelrohr (1') ausgebildet ist.Heat exchanger according to one of claims 1-3, characterized characterized in that the tube is spaced apart from two Pipes with an intermediate, with transverse slots (6) provided longitudinal rib (5) existing double tube (1 ') is trained. Wärmetauscher nach Anspruch 4, dadurch gekennzeichnet, daß die Querschlitze (6) sich als parallele Schlitze zwischen dem einen und dem anderen Rohr erstrecken, und die sich dazwischen befindenden Teile (5') der Längsrippe (5) abwechselnd in verschiedene Richtungen aus der Ebene der Längsrippe (5) herausgebogen sind und in den Heizgasraum (4) hineinragen.Heat exchanger according to claim 4, characterized in that the transverse slots (6) prove to be parallel Slots between one and the other tube extend, and the intermediate parts (5 ') the longitudinal rib (5) alternately in different directions are bent out of the plane of the longitudinal rib (5) and in protrude into the heating gas chamber (4). Wärmetauscher nach einem der Ansprüche 1-5, dadurch gekennzeichnet, daß das Rohr einen rechteckigen Querschnitt aufweist, und daß die Rohrwicklungen flach aufeinanderliegen.Heat exchanger according to one of claims 1-5, characterized characterized in that the tube has a rectangular cross section and that the tube windings are flat lie on one another. Wärmetauscher nach Ansprüch 6, dadurch gekennzeichnet, daß die aufeinanderliegenden Flächen der Wicklungen mittels komplementärer Profilierungen (7) ineinandergreifen.Heat exchanger according to Claim 6, characterized in that that the superimposed surfaces of the Complementary profiling windings (7) interlock. Wärmetauscher nach einem der Ansprüche 1-7, dadurch gekennzeichnet, daß das Rohr (1) aus einem Aluminium-Stranggußprofil besteht.Heat exchanger according to one of claims 1-7, characterized characterized in that the tube (1) from an aluminum extrusion consists. Rohr zur Herstellung eines Wärmetauschers nach einem der Ansprüche 1-8.Pipe for the manufacture of a heat exchanger any of claims 1-8.
    EP98200884A 1997-03-26 1998-03-19 Heat exchanger and pipe for making such a heat exchanger Withdrawn EP0867666A1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    NL1005649A NL1005649C2 (en) 1997-03-26 1997-03-26 Heat exchanger, and tube for the manufacture of such a heat exchanger.
    NL1005649 1997-03-26
    DE19728062A DE19728062A1 (en) 1997-03-26 1997-07-01 Gas heat exchanger, particularly for combustion unit

    Publications (1)

    Publication Number Publication Date
    EP0867666A1 true EP0867666A1 (en) 1998-09-30

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    ID=26037925

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98200884A Withdrawn EP0867666A1 (en) 1997-03-26 1998-03-19 Heat exchanger and pipe for making such a heat exchanger

    Country Status (3)

    Country Link
    EP (1) EP0867666A1 (en)
    DE (1) DE19728062A1 (en)
    NL (1) NL1005649C2 (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN108291739A (en) * 2015-06-24 2018-07-17 意大利利雅路股份有限公司 The profile of pipeline for heat exchanger, the heat exchanger of the condensing boiler for providing the profile and the condensing boiler that the heat exchanger is provided

    Citations (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3766976A (en) * 1971-11-01 1973-10-23 Gen Electric Integral fin evaporator
    FR2347640A1 (en) * 1976-04-07 1977-11-04 Gartner & Co J Finned tube heat transfer equipment - has longitudinal fins tapering towards free edges which are thickened
    US5186022A (en) * 1990-03-13 1993-02-16 Samsung Electronics Co., Ltd. Evaporator structure for refrigerator-freezer

    Patent Citations (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3766976A (en) * 1971-11-01 1973-10-23 Gen Electric Integral fin evaporator
    FR2347640A1 (en) * 1976-04-07 1977-11-04 Gartner & Co J Finned tube heat transfer equipment - has longitudinal fins tapering towards free edges which are thickened
    US5186022A (en) * 1990-03-13 1993-02-16 Samsung Electronics Co., Ltd. Evaporator structure for refrigerator-freezer

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN108291739A (en) * 2015-06-24 2018-07-17 意大利利雅路股份有限公司 The profile of pipeline for heat exchanger, the heat exchanger of the condensing boiler for providing the profile and the condensing boiler that the heat exchanger is provided
    CN108291739B (en) * 2015-06-24 2020-06-05 意大利利雅路股份有限公司 Pipe profile, coiled heat exchanger and condensation boiler

    Also Published As

    Publication number Publication date
    NL1005649C2 (en) 1998-09-29
    DE19728062A1 (en) 1999-01-07

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