EP0118874A2 - Heater - Google Patents

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Publication number
EP0118874A2
EP0118874A2 EP84102424A EP84102424A EP0118874A2 EP 0118874 A2 EP0118874 A2 EP 0118874A2 EP 84102424 A EP84102424 A EP 84102424A EP 84102424 A EP84102424 A EP 84102424A EP 0118874 A2 EP0118874 A2 EP 0118874A2
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EP
European Patent Office
Prior art keywords
door
combustion chamber
insulation block
heating
heating gas
Prior art date
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Granted
Application number
EP84102424A
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German (de)
French (fr)
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EP0118874A3 (en
EP0118874B1 (en
Inventor
Hans Dr. Viessmann
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Individual
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Individual
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Publication date
Priority claimed from DE19838307016 external-priority patent/DE8307016U1/en
Priority claimed from DE19838307014 external-priority patent/DE8307014U1/en
Application filed by Individual filed Critical Individual
Priority to AT84102424T priority Critical patent/ATE29923T1/en
Publication of EP0118874A2 publication Critical patent/EP0118874A2/en
Publication of EP0118874A3 publication Critical patent/EP0118874A3/en
Application granted granted Critical
Publication of EP0118874B1 publication Critical patent/EP0118874B1/en
Expired 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
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel

Definitions

  • the invention relates to a heating boiler according to the preamble of the main claim.
  • the sealing doors of such heating boilers are provided with insulation blocks, with the tendency to replace the previously used refractory molded parts of these isolated blocks with ceramic fiber molded parts that can be solidified by suction, which are otherwise much lighter than the previously used refractory molded parts on e.g. Al-Fe -Mn-Si base.
  • thermal insulation function of such insulation blocks is particularly important on sealing doors of heating boilers of the type mentioned, in which the burner flame is deflected in the pot-like combustion chamber and the heating gases flow to the boiler door, where they reach the heating gas flues in the area of a deflection chamber.
  • the heating gas flue is ring-shaped in cross section, broken down into individual flues by ribs and surrounds the combustion chamber.
  • the invention has for its object, in addition to the thermal insulation in the closure area to simplify the necessary measures for better heating gas distribution on the trains and to meet this on an element that must be provided anyway and that, because sitting on the lock door, automatically access to the Hot gas flues are released when the door is opened.
  • the insulation block is arranged on the lock door of the boiler in such a way that the part of the upper half of the lock door that is thicker or thicker in cross section is located.
  • the cross-section of the deflection chamber of the heating boiler is reduced accordingly at the top and the top, and thus the inflow resistance is increased, which leads to a better distribution of the heating gas flues in relation to all heating gas flues, but also that otherwise in particular the upper region of the deflection chamber is no longer subjected to the same amount of heat as is the case with otherwise usual flat insulation blocks.
  • the insulation block can of course be realized with all refractory materials, i.e. not only with the aforementioned ceramic fiber material.
  • the boiler part of interest here is in the form of a simple tubular drawing made of sheet steel, it can be provided with a correspondingly deep, inward and circumferential bead or with a welded-in sheet metal ring.
  • the cover can be molded directly onto the last cast ring. In principle, the only important thing is that the gap opening is shielded and is not directly accessible to heat radiation.
  • the molded body made of refractory material is continuous in the
  • the burner-side deflection chamber is denoted by 4, from which the flame or heating gases flow into the inflow openings 15 of the heating gas flues 16, the preferred flow of the heating gas flues 16 running in the upper half of the respective heating boiler resulting from the temperatures, but which results from appropriate shape of the insulation block 1 is counteracted by a corresponding design or arrangement of the surface 2 of the insulation block 1.
  • the entire surface 2 is designed to be slightly inclined.
  • a gradation 2 ' is provided, i.e. the block is kept thicker in the upper half than the lower half of the insulation block 1.
  • the resistance in front of the inflow openings 15 of the heating gas flues 16 is thus increased, so that the heating or flue gases thereby also to a greater extent flow on the heating gas flues below, because the deflection came offers 4 larger inflow or overflow cross sections.
  • the path through the gap 9 to the locking door 7 is longer and there. with also reducing their heat exposure.

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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)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)

Abstract

1. Heating boiler with an approximately horizontal reversing combustion chamber surrounded by heating gas passes all around, and a closure door which limits the combustion chamber and carries the burner and on which there are one the combustion chamber side a discshaped insulating block of refractory material and a sealing strip located at the end of a gap bounded by the insulating block and door connection edge region when the door is in the closed state, characterized in that the area (2) of the insulating block (1) on the combustion chamber side is inclined toward the combustion chamber, at least in the region of its upper half, the inclination running toward the closure door, seen from top to bottom.

Description

Die Erfindung betrifft einen Heizungskessel gemäß Oberbegriff des Hauptanspruches.The invention relates to a heating boiler according to the preamble of the main claim.

Die Verschlußtüren derartiger Heizungskessel sind mit Isolationsblöcken versehen, wobei die Tendenz besteht, die bisher verwendeten feuerfesten Formteile dieser Isolationsblöcke durch im Saugverfahren verfestigbare Keramikfaserformteile zu ersetzen, die bei sonst gleichen oder besseren Eigenschaften wesentlich leichter sind als bisher verwendete feuerfeste Formteile auf bspw. Al-Fe-Mn-Si-Basis.The sealing doors of such heating boilers are provided with insulation blocks, with the tendency to replace the previously used refractory molded parts of these isolated blocks with ceramic fiber molded parts that can be solidified by suction, which are otherwise much lighter than the previously used refractory molded parts on e.g. Al-Fe -Mn-Si base.

Die Wärmedämmfunktion solcher Isolationsblöcke ist insbesondere wichtig an Verschlußtüren von Heizungskesseln der genannten Art, bei denen die Brennerflamme in der topfartigen Brennkammer umgelenkt wird und die Heizgase auf die Kesseltür zuströmen, wo sie im Bereich einer Umlenkkammer in die Heizgaszüge gelangen. Bei modernen Heizungskesseln dieser Art ist der Heizgaszug im Querschnitt ringförmig ausgebildet, durch Rippen in Einzelzüge aufgegliedert und umgibt die Brennkammer.The thermal insulation function of such insulation blocks is particularly important on sealing doors of heating boilers of the type mentioned, in which the burner flame is deflected in the pot-like combustion chamber and the heating gases flow to the boiler door, where they reach the heating gas flues in the area of a deflection chamber. In modern heating boilers of this type, the heating gas flue is ring-shaped in cross section, broken down into individual flues by ribs and surrounds the combustion chamber.

Eine gewisse Problematik stellt hierbei neben der Wärmedämmung die anzustrebende gleichmäßige Beaufschlagung der Einzelzüge dar, bei denen natürlich die Tendenz vorliegt, daß die Züge von unten nach oben in stärkerem Maße beaufschlagt werden. Mehr oder weniger aufwendige Maßnahmen einer solchen Verteilung entgegenzuwirken sind bisher entweder in bzw. an den Heizgaszügen selbst getroffen worden oder in bzw. an der Rauchgassammelkammer, in die die Heizgaszüge ausmünden, was zum einen zusätzlich zu fertigende und einzubauende Elemente darstellt und zum anderen eine Behinderung für den Reinigungsvorgang, wenn die Heizgäszüge gereinigt werden müssen.In addition to thermal insulation, there is a certain problem here as well as the desired uniformity of the individual trains, which naturally have the tendency that the trains are loaded from bottom to top to a greater extent. More or less complex measures to counteract such a distribution have so far been taken either in or on the heating gas flues themselves or in or on the flue gas collecting chamber into which the heating gas flues open, which on the one hand represents additional elements to be manufactured and installed and on the other hand a handicap for the cleaning process when the heating gas trains have to be cleaned.

Der Erfindung liegt die Aufgabe zugrunde, außer der Wärmedämmung im Verschlußbereich die erforderlichen Maßnahmen zur besseren Heizgasverteilung auf die Züge zu vereinfachen und diese an einem Element zu treffen, das sowieso vorgesehen werden muß und das, da an der Verschlußtür sitzend, automatisch den Zugang zu den Heizgaszügen freistellt, wenn die Tür geöffnet wird.The invention has for its object, in addition to the thermal insulation in the closure area to simplify the necessary measures for better heating gas distribution on the trains and to meet this on an element that must be provided anyway and that, because sitting on the lock door, automatically access to the Hot gas flues are released when the door is opened.

Diese Aufgabe ist mit einem Heizungskessel der eingangs genannten Art nach der Erfindung durch das im Kennzeichen des Hauptanspruches Erfaßte gelöst. Vorteilhafte Weiterbildungen ergeben sich nach den Unteransprüchen.This object is achieved with a boiler of the type mentioned according to the invention by what is covered in the characterizing part of the main claim. Advantageous further developments result from the subclaims.

Der Isolationsblock kommt an der Verschlußtür des Heizungskessels derart zur Anordnung, daß sich der im Querschnitt gesehen dickere bzw. dicker werdende Teil der oberen Hälfte der Verschlußtür befindet.The insulation block is arranged on the lock door of the boiler in such a way that the part of the upper half of the lock door that is thicker or thicker in cross section is located.

Durch diese neue Form und Anordnung des Isolationsblockes wird der Querschnitt der Umlenkkammer des Heizungskessels oben bzw. nach oben hin entsprechend reduziert und damit der Zuströmwiderstand erhöht, was insgesamt in bezug auf alle Heizgaszüge zu einer besser verteilten Beaufschlagung der Heizgaszüge führt, wobei aber auch der sonst insbesondere obere Bereich der Umlenkkammer nicht mehr in dem Maße mit Wärme belastet wird, wie das bei sonst üblichen ebenflächigen Isolationsblöcken der Fall ist.With this new shape and arrangement of the insulation block, the cross-section of the deflection chamber of the heating boiler is reduced accordingly at the top and the top, and thus the inflow resistance is increased, which leads to a better distribution of the heating gas flues in relation to all heating gas flues, but also that otherwise in particular the upper region of the deflection chamber is no longer subjected to the same amount of heat as is the case with otherwise usual flat insulation blocks.

Der Isolationsblock läßt sich natürlich mit allen feuerfesten Materialien verwirklichen, d.h., nicht nur mit dem vorerwähnten Keramikfasermaterial.The insulation block can of course be realized with all refractory materials, i.e. not only with the aforementioned ceramic fiber material.

Da die brennerseitige Verschlußtür auf dem die Kesselstirnwand überragenden Rand des Kesselteiles bzw. des die Heizgase führenden Rohres sitzt, das die Brennkammer und die Heizgaszüge enthält, liegt unvermeidbar ein Ringspalt vor, der nach innen vom Isolationsblock und nach außen vom Türanschlußrandbereich des erwähnten Rohres begrenzt wird. Dieser Spalt stellt praktisch einen Wärmeleitkanal zur metallischen Verschlußtür dar, der sich durch eine beträchtliche Temperaturerhöhung der Tür bemerkbar macht, zumal ja die Umkehrflamme voll auf diesen Bereich zurückströmt. Diese Beaufschlagung bzw. Wärmebelastung der Verschlußtür ist zwar durch die besondere Formgebung des Isolationsblockes schon beträchtlich gemildert, aber eine vorteilhafte Weiterbildung in Verbindung mit dem erfindungsgemäßen Isolationsblock besteht zusätzlich darin, daß man unmittelbar vor dem Isolationsblock eine Ringblende anordnet. Welche Art der Blendenausbildung, d.h. umlaufende Rippe, Wandungssicke od. dgl. angewendet wird, hängt letztlich von der speziellen Kesselkonstruktion ab.Since the burner-side closure door sits on the edge of the boiler part or the pipe carrying the heating gases, which protrudes beyond the end wall of the boiler and contains the combustion chamber and the heating gas flues, there is inevitably an annular gap which is delimited on the inside by the insulation block and on the outside by the door connection edge area of the mentioned pipe . This gap is practical represents a heat conduction channel to the metal locking door, which is noticeable by a considerable increase in the temperature of the door, especially since the reverse flame flows back fully to this area. This exposure or heat load of the shutter door is already considerably alleviated by the special shape of the insulation block, but an advantageous further development in connection with the insulation block according to the invention consists in the fact that an annular cover is arranged directly in front of the insulation block. Which type of panel formation, ie circumferential rib, wall bead or the like, is ultimately used depends on the special boiler design.

Liegt das hier interessierende Kesselteil in Form eines einfachen Rohrzuges aus Stahlblech vor, so kann dieser mit einer entsprechend tiefen, nach innen und umlaufenden Sicke oder mit einem eingeschweißten Blechring versehen werden.If the boiler part of interest here is in the form of a simple tubular drawing made of sheet steel, it can be provided with a correspondingly deep, inward and circumferential bead or with a welded-in sheet metal ring.

Sollten im Rohrzug gegossene Heizflächen eingesetzt sein, die in der Regel aus mehreren Gußringen bestehen, so kann die Blende direkt am letzten Gußring mit angeformt sein. Wesentlich ist dabei im Prinzip immer nur, daß die Spaltöffnung abgeschirmt wird und nicht unmittelbar für eine Einstrahlung der Wärme zugänglich ist.If cast heating surfaces are used in the pipe train, which usually consist of several cast rings, the cover can be molded directly onto the last cast ring. In principle, the only important thing is that the gap opening is shielded and is not directly accessible to heat radiation.

Diesbezügliche Messungen haben ergeben, daß durch eine solch einfach zu verwirklichende Blendenanordnung im unmittelbaren Bereich vor der Spaltöffnung eine etwa 10 bis 30 %-ige Reduzierung der diesbezüglich sonst auftretenden Wärmeverluste erreicht werden kann.Measurements in this regard have shown that such an easy-to-implement diaphragm arrangement in the immediate area in front of the gap opening can achieve an approximately 10 to 30% reduction in the heat losses which otherwise occur in this regard.

Der erfindungsgemäße Heizkessel wird nachfolgend anhand der zeichnerischen Darstellung von Ausführungsbeispielen näher erläutert.The boiler according to the invention is explained in more detail below with reference to the drawing of exemplary embodiments.

Es zeigt

  • Fig. 1 einen Schnitt durch das brennerseitige Teil eines Heizungskessels mit Verschlußtür und Isolationsblock;
  • Fig. 2 , 3 weitere Ausführungsformen des Isolationsblockes;
  • Fig. 4 in Ansicht eine besondere Ausführungsform des Isolationsblockes;
  • Fig. 5 einen Schnitt durch die Ausführungsform nach Fig. 4 längs Linie V - V in Fig. 4;
  • Fig. 6 einen Schnitt entsprechend Fig. 1 durch das brennerseitige Teil eines Heizungskessels in besonderer Ausführungsform, bei dem das rohrförmige Heizkesselteil nur aus Stahlblech besteht und
  • Fig. 7 einen entsprechenden Schnitt durch eine andere Ausführungsform.
It shows
  • 1 shows a section through the burner-side part of a heating boiler with a lock door and insulation block.
  • Fig. 2, 3 further embodiments of the insulation block;
  • 4 shows a special embodiment of the insulation block in view;
  • FIG. 5 shows a section through the embodiment according to FIG. 4 along line V - V in FIG. 4;
  • Fig. 6 shows a section corresponding to Fig. 1 through the burner-side part of a boiler in a special embodiment, in which the tubular boiler part consists only of sheet steel and
  • Fig. 7 shows a corresponding section through another embodiment.

Ungeachtet der unterschiedlichen Formen ist der Formkörper aus feuerfestem Material durchgehend in denRegardless of the different shapes, the molded body made of refractory material is continuous in the

Fig. 1 bis 7 mit 1 bezeichnet. Die brennerseitige Umlenkkammer ist mit 4 bezeichnet, von der aus die Flamm- bzw. Heizgase in die Zuströmöffnungen 15 der Heizgaszüge 16 einströmen, wobei sich aufgrund der Temperaturen eine bevorzugte Anströmung der in der oberen Hälfte des jeweiligen Heizungskessels verlaufenden Heizgaszüge 16 ergibt, der aber durch entsprechende Ausformung des Isolationsblockes 1 entgegengewirkt wird und zwar durch eine entsprechende Gestaltung bzw. Anordnung der beaufschlagten Fläche 2 des Isolationsblockes 1.1 to 7 denoted by 1. The burner-side deflection chamber is denoted by 4, from which the flame or heating gases flow into the inflow openings 15 of the heating gas flues 16, the preferred flow of the heating gas flues 16 running in the upper half of the respective heating boiler resulting from the temperatures, but which results from appropriate shape of the insulation block 1 is counteracted by a corresponding design or arrangement of the surface 2 of the insulation block 1.

Bei der Ausführungsform nach Fig. 1 ist dafür die ganze Fläche 2 leicht geneigt ausgebildet. Bei der Ausführungsform nach Fig. 2 ist nur die obere Hälfte geneigt und bei der nach Fig. 3 ist eine Abstufung 2' vorgesehen, d.h. der Block ist in der oberen Hälfte dicker gehalten als die untere Hälfte des Isolationsblockes 1.In the embodiment of FIG. 1, the entire surface 2 is designed to be slightly inclined. In the embodiment according to Fig. 2 only the upper half is inclined and in the embodiment according to Fig. 3 a gradation 2 'is provided, i.e. the block is kept thicker in the upper half than the lower half of the insulation block 1.

Da sich dabei in der Umlenkkammer 4 in der oberen Hälfte entsprechend reduzierte Querschnitte ergeben, wenn die Verschlußtür 7 verschlossen ist, wird damit der Widerstand bereits vor den Zuströmöffnungen 15 der Heizgaszüge 16 erhöht, so daß dadurch die Heiz- bzw. Rauchgase in stärkerem Maße auch die untenliegenden Heizgaszüge anströmen, da dafür die Umlenkkammer 4 größere Anström- bzw. Überströmquerschnitte bietet. Wie erkennbar, ist aber auch der Weg durch den Spalt 9 bis zur Verschlußtür 7 länger und da-. mit auch deren Wärmebeaufschlagung reduziert.Since there are correspondingly reduced cross-sections in the deflection chamber 4 in the upper half when the shutter door 7 is closed, the resistance in front of the inflow openings 15 of the heating gas flues 16 is thus increased, so that the heating or flue gases thereby also to a greater extent flow on the heating gas flues below, because the deflection came offers 4 larger inflow or overflow cross sections. As can be seen, the path through the gap 9 to the locking door 7 is longer and there. with also reducing their heat exposure.

Möglich ist aber auch eine Ausbildung des Isolationsblockes 1 gemäß Fig. 4, 5, bei dem nur die in Axialprojektion vor den Heizgaszügen befindlichen Bereiche des Isolationsblockes 1 entsprechend ausgebildet sind. Gemäß Fig. 4, 5 stellt sich diese Ausführungsform in Form eines Kreisringes 2" dar, dessen beaufschlagte Fläche insgesamt im Sinne der Fig. 1 geneigt ist, oder in Form eines Kreisringabschnittes Z" mit entsprechend geneigter Anströmfläche 5.However, it is also possible to design the insulation block 1 according to FIGS. 4 and 5, in which only the regions of the insulation block 1 located in axial projection in front of the heating gas flues are designed accordingly. 4, 5 this embodiment is in the form of a circular ring 2 ", the surface of which is inclined in the sense of FIG. 1, or in the form of a circular ring section Z" with a correspondingly inclined inflow surface 5.

Mit 6 ist die zentrische Öffnung für den Durchgriff des Brenners 19 bzw. Brennerflammrohres bezeichnet, der außen an der Verschlußtür 7 sitzt. Diese problemlose und einfache Gestaltung des Isolationsblockes 1 macht weitgehend andere, der vorerwähnten nachteiligen Strömungstendenz entgegenwirkende Maßnahmen an den Heizgaszügen 16 oder in der hinteren Rauchgassammelkammer (nicht dargestellt) entbehrlich, die im Grunde immer weitaus aufwendiger sind. In den Fig. 6, 7 sind entsprechende Teile mit gleichen Bezugszeichen versehen, nämlich die Brennkammer mit 8, der Isolationsblock mit 1, der Türanschlußrandbereich mit 20, der zur Verschlußtür 7 führende Spalt mit 9, mit 10 die Spaltöffnung und mit 6 die unmittelbar vor der Spaltöffnung 10 angeordnete Blende, die im Fall der Fig. 6 durch eine in das Rohr 21 aus Stahlblech nach innen ausgeprägte bzw. durch Einrollen gewonnene Sicke 13 gebildet ist und im Fall der Fig. 7 durch eine an einem eingesetzten Gußring mit angegossene, insgesamt ringförmige Rippe 12.With 6 the central opening for the passage of the burner 19 or burner flame tube is designated, which sits on the outside of the shutter door 7. This problem-free and simple design of the insulation block 1 largely makes other measures to counteract the aforementioned disadvantageous flow tendency on the heating gas flues 16 or in the rear flue gas collection chamber (not shown) unnecessary, which are basically always far more complex. 6, 7, corresponding parts are provided with the same reference numerals, namely the combustion chamber with 8, the insulation block with 1, the door connection edge area with 20, the gap leading to the closing door 7 with 9, with 10 the gap opening and with 6 the diaphragm arranged directly in front of the gap opening 10, which in the case of FIG. 6 is formed by a bead 13 formed in the tube 21 from sheet steel or obtained by rolling it in is formed and in the case of FIG. 7 by an overall annular rib 12 cast onto an inserted cast ring.

Claims (4)

1. Heizungskessel, bestehend aus einer ringsum von Heizgaszügen umgebenen Brennkammer und aus einer den Brenner tragenden Verschlußtür, an der umlenkkammerseitig ein scheibenförmiger Isolationsblock und eine im geschlossenen Zustand der Tür am Ende eines vom Isolationsblock und Türanschlußrandbereich des Kessels begrenzten Spaltes sitzende Dichtungsschnur angeordnet ist, dadurch gekennzeichnet, daß der der Öffnung (14) der Brennkammer (8) bzw. den Zuströmöffnungen (15) der Heizgaszüge (16) gegenüberstehende, in der Umlenkkammer (4) angeordnete Isolationsblock (1) mindestens im Bereich etwa einer Hälfte mit einer brennkammerseitigen Fläche (2) versehen ist, die geneigt bzw. gegenüber der Restfläche (3) des Isolationsblockes (1) geneigt oder höhergestellt verlaufend angeordnet ist.1 H eizungskessel consisting of a round of heating gas flues surrounding the combustion chamber and of a burner-supporting shutter door, umlenkkammerseitig a disk-shaped insulating block and seated sealing strip is arranged on the one of the door in the closed state at the end of a limited by the insulating block and door connection edge region of the boiler gap, characterized in that the insulation block (1), which faces the opening (14) of the combustion chamber (8) or the inflow openings (15) of the heating gas flues (16) and is arranged in the deflection chamber (4), has at least approximately one half with a surface on the combustion chamber side (2) is provided, which is arranged inclined or inclined with respect to the remaining surface (3) of the insulation block (1) or in a higher position. 2. Heizungskessel nach Anspruch 1, dadurch gekennzeichnet, daß die Fläche (2) des Isolationsblockes (1) in Form eines Kreisringes (2") bzw. eines Kreisringabschnittes (2'") ausgebildet ist.2. Heating boiler according to claim 1, characterized in that the surface (2) of the insulation block (1) in the form of a circular ring (2 ") or an annular section (2 '") is formed. 3. Heizungskessel nach Anspruch 1 und/oder 2, da- durch gekennzeichnet, daß in der Umlenkkammer (4) unmittelbar vor dem vom Isolationsblock (1) und dem den Türanschlußrandbereich (8') begrenzenden Spalt (9) eine die Spaltöffnung (10) abschirmende Blende (11) angeordnet ist.3. Boiler according to claim 1 and / or 2, characterized in that in the deflection chamber (4), an aperture (11) shielding the aperture (10) is arranged directly in front of the gap (9) delimiting the insulation block (1) and the door connection edge area (8 '). 4. Heizungskessel nach Anspruch 3, dadurch gekennzeichnet, daß die Blende (11) in Form einer am Türanschlußrandbereich (20) angeordneten umlaufenden Rippe (12), Wandungssicke (13) od. dgl. ausgebildet ist.4. A heating boiler according to claim 3, characterized in that the diaphragm (11) in the form of a peripheral rib (12), wall bead (13) or the like is arranged on the door connection edge region (20). The like.
EP84102424A 1983-03-11 1984-03-07 Heater Expired EP0118874B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84102424T ATE29923T1 (en) 1983-03-11 1984-03-07 BOILER.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE8307014U 1983-03-11
DE19838307016 DE8307016U1 (en) 1983-03-11 1983-03-11 HEATING BOILER
DE8307016U 1983-03-11
DE19838307014 DE8307014U1 (en) 1983-03-11 1983-03-11 INSULATION BLOCK

Publications (3)

Publication Number Publication Date
EP0118874A2 true EP0118874A2 (en) 1984-09-19
EP0118874A3 EP0118874A3 (en) 1985-06-12
EP0118874B1 EP0118874B1 (en) 1987-09-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP84102424A Expired EP0118874B1 (en) 1983-03-11 1984-03-07 Heater

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EP (1) EP0118874B1 (en)
DE (1) DE3466431D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113218081A (en) * 2021-03-29 2021-08-06 青岛海尔空调器有限总公司 Air treatment equipment heating element fixing structure and air treatment equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1604072A1 (en) * 1966-06-27 1971-03-11 Variotherm S A Boilers for hot water heating
FR2390681A2 (en) * 1977-05-14 1978-12-08 Viessmann Hans BOILER FOR COMBUSTION OF GASEOUS OR LIQUID FUELS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1604072A1 (en) * 1966-06-27 1971-03-11 Variotherm S A Boilers for hot water heating
FR2390681A2 (en) * 1977-05-14 1978-12-08 Viessmann Hans BOILER FOR COMBUSTION OF GASEOUS OR LIQUID FUELS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113218081A (en) * 2021-03-29 2021-08-06 青岛海尔空调器有限总公司 Air treatment equipment heating element fixing structure and air treatment equipment

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DE3466431D1 (en) 1987-10-29
EP0118874A3 (en) 1985-06-12
EP0118874B1 (en) 1987-09-23

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