EP0345426B1 - Partition wall for a boiler - Google Patents
Partition wall for a boiler Download PDFInfo
- Publication number
- EP0345426B1 EP0345426B1 EP89105817A EP89105817A EP0345426B1 EP 0345426 B1 EP0345426 B1 EP 0345426B1 EP 89105817 A EP89105817 A EP 89105817A EP 89105817 A EP89105817 A EP 89105817A EP 0345426 B1 EP0345426 B1 EP 0345426B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat
- combustion chamber
- chamber wall
- cavity
- sheet metal
- 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.)
- Expired - Lifetime
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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
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
- F28F13/182—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing especially adapted for evaporator or condenser surfaces
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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
- F24H1/26—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 the water mantle forming an integral body
- F24H1/263—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 the water mantle forming an integral body with a dry-wall combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
- F28F1/16—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion
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- 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
Definitions
- the invention relates to a partition for heating boilers, namely the combustion chamber wall or heating gas draft tube, which separates the water side from the gas-carrying side and on the gas side of which heat transfer area enlargements are arranged in the form of longitudinal ribs folded from a sheet metal blank and the sheet metal blank of which is thermally conductively connected to the combustion chamber wall, the rib folds in limit their foot area with the inner surface of the combustion chamber wall and the cavity gussets are filled with a heat-conducting material.
- Partition walls designed in this way are well known, so that no special printed evidence is required in this regard.
- This design of the partitions which can be used both for enclosing the combustion chamber and for forming heating gas pipes, has proven itself well, since in addition to its function as an enlargement of the heat transfer surface on the gas side, it also provides corrosion protection with regard to condensate.
- the heat-conducting connection between the sheet metal blank folded into longitudinal ribs and the surrounding wall, which is generally a more or less large pipe, depending on whether the partition wall should enclose a combustion chamber or a hot gas flue, is achieved either by a press fit and / or partial welding .
- the widths of the cavity gussets at the base of the rib folds add up to a not inconsiderable width, which cannot be used directly for direct heat transfer, because the wall parts of the sheet metal blank that delimit the respective cavity gussets do not necessarily exist to be brought into heat-conducting contact with the wall on which the sheet metal blank sits.
- BE-A-458 680 it is known for a heat exchanger with a corresponding wall design to fill this gusset with welding or soldering material, which apparently results automatically when the sheet folded into ribs is connected to the associated supporting wall by molten metal flow . This is the case with combustion chamber walls and heating gas pipes practically impossible to achieve due to the much larger dimensions.
- the invention is therefore based on the object of designing a partition of the type mentioned in such a way that the reduced heat transfer in the region of the cavity gusset can be intensified by simple means.
- the design of the partition according to the invention is of particular importance for the case in which the fins not only absorb heat from the heating gases flowing past, but also directly and directly from the ends the ribs of the thermally conductively connected walls, because only in this way can the large amount of heat introduced into the ribs actually be dissipated.
- the other solution consists in the fact that in the region of the cavity gusset-side gusset of each rib fold, the combustion chamber wall is formed in the cavity, forming the heat-conducting material, and molded onto the inner foot region of the rib folds, which can be easily accomplished with suitable deformation tools. It may well be considered to keep the thickness of the sheet metal blank greater than the thickness of the actual surrounding wall.
- the partition can be used both as a firebox enclosure and in the form of more or less small heating gas pipes, and only the special gusset design is of interest here, a boiler that is equipped with such a partition is not particularly shown, especially since the most varied Boiler constructions that are suitable for this are adequate are known.
- the water side of such a partition is designated W in FIG. 1 and the gas side G.
- the sheet metal blank l2, which is provided with the rib folds 8, as shown, is connected in a heat-conducting manner on the fire wall 9. In the production of the rib folds 8, it is not possible to avoid the formation of hollow gussets l in the foot region l3, which is inevitable associated with this is that the wall parts 3, as indicated in FIG.
- the thermally conductive material in the form of the gusset cross-section is at least approximately corresponding to the extruded profile with shaped longitudinal ribs 6.
- extruded profiles 5 are then assembled by welding into a cylindrical body that forms the combustion chamber wall.
- the sheet metal blank 12 provided with the rib folds 8 and likewise cylindrical is then pressed into this body with suitable auxiliary tools.
- FIG. 4 shows the partition wall rounded to a cylindrical tube, as it is either used as a combustion chamber or reduced in diameter accordingly and inserted in a required number into a water-bearing boiler housing.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Details Of Fluid Heaters (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Thermal Insulation (AREA)
Abstract
Description
Die Erfindung betrifft eine Trennwand für Heizungskessel, nämlich Feuerraumwand oder Heizgaszugrohr, die die Wasserseite von der gasführenden Seite trennt und auf der gasseitig Wärmeübertragungsflächenvergrößerungen in Form von aus einem Blechzuschnitt gefalteten Längsrippen angeordnet sind und deren Blechzuschnitt mit der Feuerraumwand wärmeleitend verbunden ist, wobei die Rippenfaltungen in ihrem Fußbereich mit der inneren Fläche der Feuerraumwand Hohlraumzwickel begrenzen und die Hohlraumzwickel mit einem wärmeleitenden Material ausgefüllt sind.The invention relates to a partition for heating boilers, namely the combustion chamber wall or heating gas draft tube, which separates the water side from the gas-carrying side and on the gas side of which heat transfer area enlargements are arranged in the form of longitudinal ribs folded from a sheet metal blank and the sheet metal blank of which is thermally conductively connected to the combustion chamber wall, the rib folds in limit their foot area with the inner surface of the combustion chamber wall and the cavity gussets are filled with a heat-conducting material.
Derart ausgebildete Trennwände sind hinlänglich bekannt, so daß es diesbezüglich keines besonderen druckschriftlichen Nachweises bedarf. Diese Ausgestaltung der Trennwände, die sowohl für die Umschließung des Feuerraumes aber auch für die Ausbildung von Heizgaszugrohren in Frage kommen, haben sich gut bewährt, da sie neben ihrer Funktion als gasseitige Wärmeübertragungsflächenvergrößerungen auch einen Korrosionsschutz hinsichtlich anfallenden Kondensats darstellen. Die wärmeleitende Verbindung zwischen dem zu Längsrippen aufgefalteten Blechzuschnitt und der umschließenden Wand, die in der Regel ein mehr oder weniger durchmessergroßes Rohr darstellt, je nachdem, ob die Trennwand einen Feuerraum umschließen soll oder einen Heizgaszug, wird entweder durch Preßsitz und/oder partielle Verschweißung erreicht.Partition walls designed in this way are well known, so that no special printed evidence is required in this regard. This design of the partitions, which can be used both for enclosing the combustion chamber and for forming heating gas pipes, has proven itself well, since in addition to its function as an enlargement of the heat transfer surface on the gas side, it also provides corrosion protection with regard to condensate. The heat-conducting connection between the sheet metal blank folded into longitudinal ribs and the surrounding wall, which is generally a more or less large pipe, depending on whether the partition wall should enclose a combustion chamber or a hot gas flue, is achieved either by a press fit and / or partial welding .
Aus fertigungstechnischen Gründen ist es bei der Vorbereitung bzw. Auffaltung des Blechzuschnittes, will man den Fertigungsaufwand in vernünftigen Grenzen halten, praktisch nicht möglich, die Rippenfaltungen im Fußbereich derart scharfkantig anzulegen, daß keine Hohlraumzwickel entstehen, d.h., je großzügiger man mit der Faltung in diesem Bereich verfährt, desto größer werden die Hohlraumzwickel an der Basis der Rippenfaltungen. Da diese Rippenfaltungen untereinander relativ geringe Abstände haben, summieren sich die Breiten der Hohlraumzwickel an der Basis der Rippenfaltungen zu einer nicht unbeträchtlichen Breite auf, die nicht unmittelbar für einen direkten Wärmeübergang nutzbar gemacht werden kann, weil die die jeweiligen Hohlraumzwickel begrenzenden Wandungsteile des Blechzuschnittes zwangsläufig nicht mit der Wand in wärmeleitenden Kontakt zu bringen sind, auf der der Blechzuschnitt sitzt. Abgesehen davon, daß dies sowieso nicht im Sinne eines optimalen Wäarmeüberganges liegt, ist diese konstruktive Gegebenheit der an sich vorteilhaften Rippenausbildung durch Faltung insbesondere dann nachteilig, wenn derartig ausgebildete Trennwände in Verbindung mit die eigentliche ßrennkammer umschließenden Wänden benutzt werden, was in der Regel der Fall ist, und wobei aus bestimmten Gründen die Brennkammerwand mit den Ender der Rippen ebenfalls in wärmeleitendem Kontakt steht, um die von der Brennkammerwand aufgenommene Warme unmittelbar in die Rippen einzuleiten. Hierbei machen sich die vorbeschriebenen und unvermeidbaren Hohlraumzwickel nachteilig bemerkbar, da deren Flächen am Wärmeübergang mehr oder weniger unbeteiligt bleiben, d.h. die von der Brennkammerwand zusätzlich eingeleitete Wärme kann ebenfalls nur über die Flächen abgeführt werden, die in unmittelbarem Wärmeleitkontakt stehen. Dies zeigt sich bspw. ganz deutlich in entsprechenden "Wärmemarkierungen" auf der Wasserseite der Trennwand.For technical reasons, when preparing or unfolding the sheet metal blank, if you want to keep the manufacturing effort within reasonable limits, it is practically impossible for the rib folds in the foot area to be so sharp-edged to ensure that no gussets are created, ie, the more generously you fold the area, the larger the gussets become at the base of the rib folds. Since these rib folds have relatively small distances from one another, the widths of the cavity gussets at the base of the rib folds add up to a not inconsiderable width, which cannot be used directly for direct heat transfer, because the wall parts of the sheet metal blank that delimit the respective cavity gussets do not necessarily exist to be brought into heat-conducting contact with the wall on which the sheet metal blank sits. In addition to the fact that this is not in the sense of an optimal heat transfer anyway, this constructive fact of the rib formation which is advantageous per se by folding is particularly disadvantageous when such partition walls are used in connection with the walls surrounding the actual ßrennkammer, which is usually the case and, for certain reasons, the combustion chamber wall is also in heat-conducting contact with the ends of the ribs in order to introduce the heat absorbed by the combustion chamber wall directly into the ribs. Here, the previously described and unavoidable gusset cavities have a disadvantageous effect, since their surfaces remain more or less uninvolved in the heat transfer, ie the heat additionally introduced by the combustion chamber wall can also be dissipated only via the surfaces which are in direct thermal contact. This is clearly shown, for example, in corresponding "heat markings" on the water side of the partition.
Nach der BE-A-458 680 ist es für einen Wärmetauscher mit entsprechender Wandungsgestaltung bekannt, diese Zwickel mit Schweiß- bzw. Lötmaterial auszufüllen, was sich offenbar automatisch mit ergibt, wenn das zu Rippen aufgefaltete Blech mit der zugehörigen tragenden Wand durch Metallschmelzfluß verbunden wird. Dies ist bei Feuerraumwänden und Heizgaszugrohren aufgrund der wesentlich größeren Abmessungen praktisch nicht zu verwirklichen.According to BE-A-458 680 it is known for a heat exchanger with a corresponding wall design to fill this gusset with welding or soldering material, which apparently results automatically when the sheet folded into ribs is connected to the associated supporting wall by molten metal flow . This is the case with combustion chamber walls and heating gas pipes practically impossible to achieve due to the much larger dimensions.
Der Erfindung liegt demgemäß die Aufgabe zugrunde, eine Trennwand der eingangs genannten Art dahingehend auszubilden, daß der reduzierte Wärmeübergang im Bereich der Hohlraumzwickel mit einfachen Mitteln intensiviert werden kann.The invention is therefore based on the object of designing a partition of the type mentioned in such a way that the reduced heat transfer in the region of the cavity gusset can be intensified by simple means.
Diese Aufgabe ist auf zweierlei Art mit einer gattungsgemäßen Trennwand nach der Erfindung durch die im Kennzeichen der beiden unabhängigen Ansprüchen l und 2 angeführten Merkmale gelöst. .This object is achieved in two ways with a generic partition according to the invention by the features stated in the characterizing part of the two
Abgesehen davon, daß damit die verfügbare Wärmeübertragungsfläche bzw. der Wärmedurchgang insgesamt optimiert ist, hat die erfindungsgemäße Ausbildung der Trennwand besondere Bedeutung für den Fall, bei dem die Rippen Wärme nicht nur aus den vorbeiströmenden Heizgasen aufnehmen, sondern auch direkt und unmittelbar aus mit den Enden der Rippen wärmeleitend verbundenen Wandungen, denn nur auf diese Weise kann die in die Rippen eingeleitete große Wärmemenge auch tatsächlich abgeführt werden.In addition to the fact that the available heat transfer surface or heat transfer is optimized overall, the design of the partition according to the invention is of particular importance for the case in which the fins not only absorb heat from the heating gases flowing past, but also directly and directly from the ends the ribs of the thermally conductively connected walls, because only in this way can the large amount of heat introduced into the ribs actually be dissipated.
Insbesondere für Feuerraumumgebungswände ist es bekannt, diese Wände aus mehr oder weniger großen Strangpreßprofilen zusammenzusetzen, bei deren Strangverpressung die Rippen sogleich mit ausgeformt werden. Davon ausgehend, ist nach der ersten Lösung vorgesehen, statt der Rippen an den Strangpreßprofilen kleine Längsrippen mit auszuformen, deren Querschnitt dem Querschnitt der Hohlraumzwickel entspricht, die an eimem Blechzuschnitt mit aufgefalteten Rippen, wie beschrieben, vorliegen, d.h., bei einer derartigen Ausbildung der Feuerraumwand ist das wärmeleitende Material in Form von dem Zwickelquerschnitt zumindest angenähert entsprechend am Strangpreßprofil mitausgeformten Langsrippen ausgebildet.In particular for combustion chamber surrounding walls, it is known to assemble these walls from more or less large extruded profiles, during the extrusion of which the ribs are immediately formed. Proceeding from this, it is provided according to the first solution, instead of forming the ribs on the extruded profiles with small longitudinal ribs, the cross-section of which corresponds to the cross-section of the cavity gussets which are present on a sheet metal blank with unfolded ribs, as described, that is, with such a design of the combustion chamber wall the heat-conducting material in the form of the gusset cross-section is formed at least approximately in accordance with the longitudinal ribs formed on the extruded profile.
Die andere Lösung besteht darin, daß im Bereich der feuerraumwandseitigen Hohlraumzwickel jeder Rippenfaltung die Feuerraumwand in den Hohlraum hinein, das wärmeleitende Material bildende, an den inneren Fußbereich der Rippenfaltungen angeformt ausgebildet ist, was mit geeigneten Verformungswerkzeugen problemlos bewerkstelligt werden kann. Dabei kann durchaus in Betracht gezogen werden, ggf. die Stärke des Blechzuschnittes größer zu halten als die Stärke der eigentlichen Umschließungswand.The other solution consists in the fact that in the region of the cavity gusset-side gusset of each rib fold, the combustion chamber wall is formed in the cavity, forming the heat-conducting material, and molded onto the inner foot region of the rib folds, which can be easily accomplished with suitable deformation tools. It may well be considered to keep the thickness of the sheet metal blank greater than the thickness of the actual surrounding wall.
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher beschrieben.Embodiments of the invention are shown in the drawing and are described in more detail below.
Es zeigen schematisch:
- Fig. l im Schnitt und perspektivisch einen Abschnitt der Trennwand mit noch nicht ausgefüllten Hohlraumzwickeln;
- Fig. 2 im Schnitt Ausführungsformen der Trennwand nach der dersten Lösung;
- Fig. 3 im Schnitt die Ausführungsrorm nach der zweiten, unabhängigen Lösung und
- Fig. 4 einen Schnitt durch die Trennwand in zylindrisch gerundeter Form für den Einbau als Feuerraum in ein Heizkesselgehäuse.
- Figure l in section and in perspective a section of the partition with not yet filled cavity gussets.
- Fig. 2 in section embodiments of the partition after the first solution;
- Fig. 3 in section the execution standard after the second, independent solution and
- Fig. 4 shows a section through the partition in a cylindrical rounded shape for installation as a combustion chamber in a boiler housing.
Da die Trennwand sowohl als Feuerraumumschließung als auch in Form von mehr oder weniger durchmesserkleinen Heizgaszugrohren verwendet werden kann, und hier nur die besondere Zwickelausbildung von Interesse ist, ist ein Heizkessel, der mit einer solchen Trennwand ausgestattet wird, nich besonders dargestellt, zumal diesbezüglich die unterschiedlichsten Heizkesselkonstruktionen, die dafür infragekommen, hinlänglich bekannt sind. Die Wasserseite einer derartigen Trennwand ist in Fig. l mit W und die Gasseite mit G bezeichnet. Der Blechzuschnitt l2, der mit den Rippenfaltungen 8, wie dargestellt, versehen ist, sitzt dabei wärmeleitend verbunden auf der Feuerraunuwand 9. Bei der Herstellung der Rippenfaltungen 8 ist es dabei nicht möglich, die Ausbildungen von Hohlraumzwickeln l im Fußbereich l3 zu vermeiden, was zwangsläufig damit verbunden ist, daß die Wandungsteile 3, wie in Fig. l angedeutet, nicht bzw. nur in sehr beschränktem Maße an der Wärmeübertragung teilnehmen können, die im wesentlichen nur über die senkrecht schraffierten Bereiche erfolgen kann. Da in der Regel eine Trennwand eine Vielzahl solcher Rippenfaltungen 8 aufweist, liegt eine entsprechende Anzahl von Hohlraumzwickeln l vor, deren Flächen sich in nicht unbeträchtlichem Umfange zu einer Gesamtfläche aufaddieren, die am direkten Wärmeübergang nicht unmittelbar beteiligt ist. Besonders kritisch wird dies, wenn eine Brennkammerwand, die die einzelnen Heizgaszüge l5 nach oben begrenzt, ebenfalls in direktem wärmeleitenden Kontakt mit den Rippenfaltungen 8 steht und durch die, wie vorerwähnt, eine zusätzliche Wärmemenge in die Rippenfaltungen 8 eingeleitet wird. Aus diesem Grunde ist es angezeigt, die Holraumzwickel l mit einem wärmeleitenden Material auszufüllen.Since the partition can be used both as a firebox enclosure and in the form of more or less small heating gas pipes, and only the special gusset design is of interest here, a boiler that is equipped with such a partition is not particularly shown, especially since the most varied Boiler constructions that are suitable for this are adequate are known. The water side of such a partition is designated W in FIG. 1 and the gas side G. The sheet metal blank l2, which is provided with the
Beim Ausführungsbeispiel gemäß Fig. 2, bei dem die Feuerraumwand aus Strangpreßprofilen 5 gebildet ist, ist das wärnueleitende Material in Form von dem Zwickelquerschnitt zumindest angenähert entsprechenden, am Strangpreßprofil mit ausgeformten Längsrippen 6 ausgebildet. Mehrere solche Strangpreßprofile 5 werden dann durch Verschweißung zu einem zylindrischen Körper zusammengesetzt, der die Feuerraumwand bildet. In diesen Körper wird dann der mit den Rippenfaltungen 8 versehene und ebenfalls zylindrische Blechzuschnitt l2 mit geeigneten Hilfswerkzeugen eingepreßt.In the embodiment according to FIG. 2, in which the combustion chamber wall is formed from
Beim Ausführungsbeispiel gemäß Fig.3 ist ebenfalls kein zusätzliches wärmeleitendes Material erforderlich, denn hierbei ist die Trennwand derart ausgebildet, daß im Bereich 7 der feuerraumwandseitigen Hohlraumzwickel l jeder Rippenfaltung 8 die Feuerraumwand 9 in den Hohlraum 2 hinein, das wärmeleitende Material bildend, an den inneren Fußbereich der Rippenfaltungen 8 angeformt ist. Auch diese Ausbildung der Trennwand erfolgt mit anpreßdruckgeeigneten Hilfswerkzeugen.In the exemplary embodiment according to FIG. 3, no additional heat-conducting material is required either, because here the partition is designed such that in the
Fig. 4 stellt der Vollständigkeit halber die zu einem zylindrischen Rohrzug gerundete Trennwand dar, wie sie entweder als Feuerraum oder entsprechend durchmesserreduziert und in erforderlicher Anzahl in ein wasserführendes Kessgelgehäuse eingesetzt wird.For the sake of completeness, FIG. 4 shows the partition wall rounded to a cylindrical tube, as it is either used as a combustion chamber or reduced in diameter accordingly and inserted in a required number into a water-bearing boiler housing.
Claims (2)
- A partition for heating boilers, namely a combustion chamber wall or heating gas flue, separating the water side from the gas-carrying side and on which are disposed, on the gas side, heat transfer surface enlargements in the form of longitudinal fins folded from a sheet metal blank (12), with the sheet metal blank thereof being connected, in heat conductive manner, to the combustion chamber wall, and with the fin foldings (8), at the bottom areas thereof, with the inner face of the combustion chamber wall, confining cavity spandrels (1) and the cavity spandrels (1) being filled with a heat conductive material,
characterized in that the heat-conductive material is configured in the form of filling profiles which, in cross-section, are at least approximately adjusted to the spandrel cross-section, with the filling profiles being formed as longitudinal fins (6) moulded on the extruded profile while the combustion chamber wall is formed of extrusion-moulded profiles (5). - A partition for heating boilers, namely a combustion chamber wall or heating gas flue, separating the water side from the gas-carrying side and on which are disposed, on the gas side, heat transfer surface enlargements in the form of longitudinal fins folded from a sheet metal blank (12), wherein the sheet metal blank is connected, in heat conducting manner, to the combustion chamber wall, with the fin foldings (8), at the bottom areas thereof, with the internal surface of the combustion chamber wall, confining cavity spandrels (1) and with the cavity spandrels (1) being filled with a heat-conductive material,
characterized in that the heat conductive material is in the form of filling profiles which, in cross-section, are at least approximately adapted to the spandrel cross-section, with the combustion chamber wall, in the area (7) of the combustion chamber wall-sided cavity spandrel (1) of each fin folding (8) being moulded into the cavity (2) at the inner bottom area of the fin foldings (8) while forming the filling profiles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT89105817T ATE80938T1 (en) | 1988-06-04 | 1989-04-03 | PARTITION FOR BOILER. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3819071 | 1988-06-04 | ||
| DE3819071A DE3819071C1 (en) | 1988-06-04 | 1988-06-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0345426A1 EP0345426A1 (en) | 1989-12-13 |
| EP0345426B1 true EP0345426B1 (en) | 1992-09-23 |
Family
ID=6355873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89105817A Expired - Lifetime EP0345426B1 (en) | 1988-06-04 | 1989-04-03 | Partition wall for a boiler |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0345426B1 (en) |
| AT (1) | ATE80938T1 (en) |
| DE (1) | DE3819071C1 (en) |
| ES (1) | ES2035403T3 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9311128U1 (en) * | 1993-07-28 | 1993-09-02 | Vießmann, Hans, Dr., 35088 Battenberg | boiler |
| DE9309771U1 (en) * | 1993-07-01 | 1993-08-26 | Viessmann Werke Gmbh & Co, 35108 Allendorf | Hot gas flue |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE458680A (en) * | ||||
| DE8531100U1 (en) * | 1985-11-04 | 1987-10-29 | Vießmann, Hans, Dr.h.c., 3559 Battenberg | Heating gas flue pipe |
-
1988
- 1988-06-04 DE DE3819071A patent/DE3819071C1/de not_active Expired
-
1989
- 1989-04-03 EP EP89105817A patent/EP0345426B1/en not_active Expired - Lifetime
- 1989-04-03 ES ES198989105817T patent/ES2035403T3/en not_active Expired - Lifetime
- 1989-04-03 AT AT89105817T patent/ATE80938T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ES2035403T3 (en) | 1993-04-16 |
| DE3819071C1 (en) | 1989-07-13 |
| ATE80938T1 (en) | 1992-10-15 |
| EP0345426A1 (en) | 1989-12-13 |
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