EP0672870A1 - Water heating apparatus - Google Patents

Water heating apparatus Download PDF

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Publication number
EP0672870A1
EP0672870A1 EP95102541A EP95102541A EP0672870A1 EP 0672870 A1 EP0672870 A1 EP 0672870A1 EP 95102541 A EP95102541 A EP 95102541A EP 95102541 A EP95102541 A EP 95102541A EP 0672870 A1 EP0672870 A1 EP 0672870A1
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EP
European Patent Office
Prior art keywords
heat exchanger
water
side wall
main heat
combustion chamber
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Granted
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EP95102541A
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German (de)
French (fr)
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EP0672870B1 (en
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Richard Vetter
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Individual
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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
    • F24H1/28—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 including one or more furnace or fire tubes
    • 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
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • 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
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • F24H9/146—Connecting elements of a heat exchanger

Definitions

  • the invention relates to a device for heating water, in particular a hot water boiler, with a combustion chamber enclosed by one or more water chambers and a heat exchanger arranged below the combustion chamber - hereinafter referred to as the main heat exchanger - consisting of parallel plates designed to hold water, which are used to form water an S-shaped course of the flue gases offset from one another and provided at their lateral edges with water channels which are connected via a plurality of water channels running transversely to the flue gases, the combustion chamber and the main heat exchanger being arranged in a housing which extends over the area of the main heat exchanger is equipped with exchangeable side walls.
  • the exchangeable side walls can be insulated sufficiently to prevent excessive heating or heat loss.
  • these side walls cause difficulties because they are heated too much and, moreover, excessive heat losses have to be accepted.
  • At least one exchangeable side wall is designed as a plate-shaped heat exchanger for heating water, this heat exchanger preferably being connected thermally in parallel with the other main heat exchanger consisting of staggered plates, for example by is fed from the water supply for the main heat exchanger and, like the main heat exchanger, flows into the water chamber surrounding the combustion chamber.
  • the fasteners for the detachable side walls are advantageously designed so that they can simultaneously serve as water supply or water drainage, i.e. supply the water to the heat exchanger and discharge the heated water again, as mentioned - into the water chamber or water chambers enclose the combustion chamber.
  • the water supply for the main heat exchanger and the side-mounted heat exchangers are designed so that the water inlet for the main heat exchanger is completely, at least for the most part, upstream of the water inflow for the side heat exchangers. This is to avoid that water is withdrawn from the main heat exchanger. It is said to absorb most of the water to be heated; the heat exchangers arranged on the side should thus be supplied in measured quantities, which can also be achieved by means of a throttle.
  • a combustion chamber 1 (area a) with burner 2 in the upper part and a water chamber 3 surrounding the combustion chamber 1, from which the heated water is discharged in the upper area.
  • a main heat exchanger 4 which extends essentially over the area b and consists of a plurality of horizontal plates 5 which are arranged one above the other and offset from one another and which have the flue gas coming from above S-shaped in the direction of the arrows 6 drive down to exit 7.
  • the plates 5 have water channels at their lateral edges, which are connected via guides running transversely to the flue gas flows, from one plate 5 to the next, higher plate 5 in the direction of arrows 8.
  • the colder water is supplied at about 9 ; the heated water leaves the main heat exchanger at plate 5, which is the top. The water then reaches the bottom of the water chamber 3, which surrounds the combustion chamber 1.
  • the side parts 11 connecting the two end faces 10 of the housing are designed like covers, essentially over the height of the area b, as exchangeable side walls 12, to which the edges of the plates 5 adjoin on the inside.
  • These side walls 12 can already form the end of the housing to the outside, but they can also be provided with a cover 13, which can also be designed as an insulating layer.
  • the side walls 12 on both sides of the housing according to FIG. 3 are designed as plate-shaped heat exchangers in such a way that their cavities 14 are supplied with several cavities in the sense of arrows 15 from the supply point 9 or water is discharged at the upper edge and the Water chamber 3 can be fed. This water flow at the entrance and exit of the side walls 12 is achieved by the fastening means for the side walls 12 shown in FIG. 4.
  • a screw 16 with head 17 and shaft 18 is provided, which is screwed into a continuous threaded hole of parts 3 and 9, respectively.
  • the shaft 18 is provided with a longitudinal bore 19 which opens via a radial bore 19 'into an annular space 20 which is delimited on the outside by a sleeve 22 provided with an outer bore 21.
  • the sleeve 22 is dimensioned in length and diameter such that it can serve as a spacer - its length practically corresponds to the wall thickness of the heat exchanger 12 - and also water from the cavities or the side walls 12 and the parts 3 that carry the water. 9 can not leak.
  • the sleeve 22 thus determines the Distance between the head 17 and the part 3 or 9 and is sealed on the outside against the outer walls of the heat exchanger 12.
  • the water reaches, for example, from the cavity 14 via the outer bore 21 into the annular space 20 and from there via the bore 19 'into the longitudinal bore 19 and from there finally into the water chamber 3. In the opposite direction, the water moves from the feed point 9 into the cavity 14.
  • the fastening screw 16 serves both to fasten the side walls 12 and to transfer water from the water supply to the cavity 14 and from this into the water chamber 3. If a side wall 12 is thus mounted, the aforementioned water path is thereby simultaneously determined.
  • FIGS. 5-7 Another possibility of fastening the side walls 12 and supplying water to the cavity 14 is shown in FIGS. 5-7.
  • 5 is constructed essentially the same as that described above. It has a combustion chamber 1 with a burner 2 in the upper region, designated a, to which the main heat exchanger is connected downwards in region b. The heated water leaves the boiler at 36.
  • a neutralization chamber 23 is provided through which the flue gas coming from the main heat exchanger is guided and brought into close contact with chemicals which cause the flue gas to be cleaned. The flue gas leaves the neutralization chamber at 24.
  • the side walls 12 designed as plate-shaped heat exchangers according to FIG. 6 have covers 13 and cavities 14. They are attached to the boiler housing by hinges 25 and 26 in such a way that they can be pivoted like a door about a vertical axis 27.
  • the hinges 25 and 26 consist of two concentrically nested tubes 28 and 29.
  • the inner tube 28 is connected to the side wall 12, while the outer tube 29 is attached to the boiler housing.
  • the inner tubes 28 are inserted from below into the outer tubes 29 and the side wall 12 is folded against the boiler housing.
  • An abutment 30 then prevents the side wall 12 from moving downward in the direction of the pivot axis 27.
  • further fastening means e.g. Screws 31
  • the side wall 12 is tightly attached to the boiler housing.
  • the inner tube 28 of the hinge 25 or 26 is provided with grooves 34, in which round cord rings 35 are inserted.
  • the round cord rings 35 act on the inner surface of the outer tube 29. They seal the hinges 25, 26 without impairing their mobility.
  • baffle 32 in the cavity 14 causes a flow in the direction of the arrows 33 and thus a favorable distribution of the water.
  • a plurality of baffles 32 can also be arranged in the cavity 14.
  • the hinges 25, 26 are accordingly used simultaneously to fasten the side wall 12 to the boiler housing and to supply and discharge water to the cavity 14. It is particularly advantageous with this arrangement that e.g. during maintenance and repair work, the interior of the boiler is easily accessible by pivoting the side wall 12 without interrupting the water path.

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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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Abstract

The boiler may be used for heating domestic hot water. It has a sidewall (12) in the form of an additional heat exchanger which is connected in parallel to the main heat exchanger. The water supply for the additional heat exchanger is tapped from the water supply (9) of the main heat exchanger and with such a rule of precedence of the supply lines to both heat exchangers that water primarily is piped to the main heat exchanger. The water outlet of the additional heat exchanger is connected to the combustion chamber which encloses the water chamber of the boiler.

Description

Die Erfindung betrifft eine Vorrichtung zum Erwärmen von Wasser, insb. einen Warmwasserheizkessel, mit einer von einer oder mehreren Wasserkammern umschlossenen Verbrennungskammer und einem unterhalb der Verbrennungskammer angeordneten Wärmetauscher - nachstehend Hauptwärmetauscher genannt - aus einander parallelen, zur Aufnahme von Wasser ausgebildeten Platten, die zur Bildung eines s-förmigen Verlaufs der Rauchgase gegeneinander versetzt und an ihren seitlichen Rändern mit Wasserkanälen versehen sind, die über eine Vielzahl quer zu den Rauchgasen verlaufender Wasserkanäle verbunden sind, wobei die Verbrennungskammer und der Hauptwärmetauscher in einem Gehäuse angeordnet sind, das über den Bereich des Hauptwärmetauschers mit auswechselbaren Seitenwänden ausgestattet ist.The invention relates to a device for heating water, in particular a hot water boiler, with a combustion chamber enclosed by one or more water chambers and a heat exchanger arranged below the combustion chamber - hereinafter referred to as the main heat exchanger - consisting of parallel plates designed to hold water, which are used to form water an S-shaped course of the flue gases offset from one another and provided at their lateral edges with water channels which are connected via a plurality of water channels running transversely to the flue gases, the combustion chamber and the main heat exchanger being arranged in a housing which extends over the area of the main heat exchanger is equipped with exchangeable side walls.

Im Falle von vergleichsweise kleinen Vorrichtungen bzw. Kesseln können die auswechselbaren Seitenwände ausreichend isoliert werden, um zu starke Erhitzungen bzw. Wärmeverluste auszuschliessen. Bei grösseren Vorichtungen bzw. Kesseln bereiten diese Seitenwände Schwierigkeiten, weil sie zu stark erwärmt werden und zudem zu grosse Wärmeverluste in Kauf genommen werden müssen.In the case of comparatively small devices or boilers, the exchangeable side walls can be insulated sufficiently to prevent excessive heating or heat loss. With larger devices or boilers, these side walls cause difficulties because they are heated too much and, moreover, excessive heat losses have to be accepted.

Aufgrund der Erfindung sollen diese Nachteile beseitigt werden; demgemäss soll die Aufgabe gelöst werden, die eingangs erwähnten Vorrichtungen bzw. Kessel so auszubilden, dass übermässige Erwärmungen der dem Wärmetauscher zugeordneten Seitenwände ausgeschaltet und die dort entstehende Wärme genutzt werden können.These disadvantages are to be eliminated on the basis of the invention; accordingly, the task is to be solved to design the devices or boilers mentioned at the outset in such a way that excessive heating of the side walls assigned to the heat exchanger can be switched off and the heat generated there can be used.

Zur Lösung dieser Aufgabe ist erfindungsgemäss zumindest eine auswechselbare Seitenwand als plattenförmiger Wärmetauscher zum Erwärmen von Wasser ausgebildet, wobei dieser Wärmetauscher vorzugsweise wärmetechnisch zu dem anderen, aus versetzten Platten bestehenden Hauptwärmetauscher parallel geschaltet ist, indem er z.B. von der Wasserzufuhr für den Hauptwärmetauscher aus gespeist wird und ebenso wie der Hauptwärmetauscher in die die Verbrennungskammer umschliessende Wasserkammer mündet.To achieve this object, according to the invention, at least one exchangeable side wall is designed as a plate-shaped heat exchanger for heating water, this heat exchanger preferably being connected thermally in parallel with the other main heat exchanger consisting of staggered plates, for example by is fed from the water supply for the main heat exchanger and, like the main heat exchanger, flows into the water chamber surrounding the combustion chamber.

Damit wird die Erwärmung der Seitenwände des Gehäuses in tragbaren Grenzen gehalten, während gleichzeitig die in die Wärmetauscher eingebrachte Wärme genutzt wird und das so erwärmte Wasser nutzbringend zusammen mit dem anderen Wasser verwendet werden kann.In this way, the heating of the side walls of the housing is kept within acceptable limits, while at the same time the heat introduced into the heat exchanger is used and the water heated in this way can be used profitably together with the other water.

Mit Vorteil werden die Befestigungsmittel für die lösbaren Seitenwände so ausgeführt, dass sie gleichzeitig als Wasserzufuhr bzw. Wasserableitung dienen können, also dem Wärmetauscher das Wasser zuführen und das erwärmte Wasser wieder abführen, und zwar - wie erwähnt - in die Wasserkammer bzw. Wasserkammern, die die Verbrennungskammer umschliessen.The fasteners for the detachable side walls are advantageously designed so that they can simultaneously serve as water supply or water drainage, i.e. supply the water to the heat exchanger and discharge the heated water again, as mentioned - into the water chamber or water chambers enclose the combustion chamber.

Wichtig ist ferner, dass die Wasserzufuhr für den Hauptwärmetauscher und die seitlich angebrachten Wärmetauscher so ausgeführt sind, dass der Wassereinlauf für den Hauptwärmetauscher ganz, zumindest aber zum grössten Teil dem Wasserzufluss für die seitlichen Wärmetauscher vorgeschaltet ist. Damit soll vermieden werden, dass dem Hauptwärmetauscher Wasser entzogen wird. Er soll den grössten Teil des zu erwärmenden Wassers aufnehmen; die seitlich angeordneten Wärmetauscher sollen somit in bemessener Menge gespeist werden, was auch durch eine Drossel erreicht werden kann.It is also important that the water supply for the main heat exchanger and the side-mounted heat exchangers are designed so that the water inlet for the main heat exchanger is completely, at least for the most part, upstream of the water inflow for the side heat exchangers. This is to avoid that water is withdrawn from the main heat exchanger. It is said to absorb most of the water to be heated; the heat exchangers arranged on the side should thus be supplied in measured quantities, which can also be achieved by means of a throttle.

Weitere Einzelheiten der Erfindung werden anhand der Zeichnung erläutert, in der ein Ausführungsbeispiel der Erfindung dargestellt ist. Es zeigen :

  • Fig. 1 einen Warmwasserheizkessel, und zwar in der Rückenansicht,
  • Fig. 2 den Kessel gemäss Fig.1 in der Seitenansicht,
  • Fig. 3 einen senkrechten Schnitt durch eine Seitenwand des Kessels gemäss Fig. 1 und 2,
  • Fig. 4 eine Befestigungsstelle für die Seitenwand gemäss Fig. 3 im senkrechten Schnitt.
  • Fig. 5 eine andere Ausführungsform des Warmwasserheizkessels,
  • Fig. 6 einen senkrechten Schnitt entlang der Linie VI - VI durch eine Seitenwand des Kessels gemäss Fig. 5 und
  • Fig. 7 eine Befestigungsstelle für die Seitenwand gemäss Fig. 5 im senkrechten Schnitt.
Further details of the invention will be explained with reference to the drawing, in which an embodiment of the invention is shown. Show it :
  • 1 is a hot water boiler, in the back view,
  • 2 the boiler according to Figure 1 in side view,
  • 3 shows a vertical section through a side wall of the boiler according to FIGS. 1 and 2,
  • Fig. 4 shows an attachment point for the side wall of FIG. 3 in vertical section.
  • 5 shows another embodiment of the hot water boiler,
  • 6 shows a vertical section along the line VI-VI through a side wall of the boiler according to FIGS. 5 and
  • Fig. 7 shows a fastening point for the side wall according to FIG. 5 in a vertical section.

In dem im wesentlichen quaderförmigen Gehäuse des Kessels befinden sich im oberen Teil eine Verbrennungskammer 1 (Bereich a) mit Brenner 2 und eine die Verbrennungskammer 1 umschliessende Wasserkammer 3, von der aus das erwärmte Wasser im oberen Bereich abgeführt wird. Unterhalb der Verbrennungskammer 1 befindet sich ein Hauptwärmetauscher 4, der sich im wesentlichen über den Bereich b erstreckt und aus mehreren, waagerechten, mit Abstand übereinander angeordneten, gegeneinander versetzten Platten 5 besteht, die das von oben kommende Rauchgas s-förmig im Sinne der Pfeile 6 nach unten zum Austritt 7 fuhren. Die Platten 5 haben an ihren seitlichen Rändern Wasserkanäle, die über quer zu den Rauchgasströmen verlaufenden Führungen in Verbindung stehen, und zwar von einer Platte 5 zur nächsten, hoher gelegenen Platte 5 im Sinne der Pfeile 8. Unten wird das kältere Wasser etwa bei 9 zugeführt; das erwärmte Wasser verlässt den Hauptwärmetauscher an der Platte 5, die am weitesten oben liegt. Das Wasser gelangt dann unten in die Wasserkammer 3, die die Verbrennungskammer 1 umschliesst.In the essentially cuboid housing of the boiler there is a combustion chamber 1 (area a) with burner 2 in the upper part and a water chamber 3 surrounding the combustion chamber 1, from which the heated water is discharged in the upper area. Below the combustion chamber 1 there is a main heat exchanger 4, which extends essentially over the area b and consists of a plurality of horizontal plates 5 which are arranged one above the other and offset from one another and which have the flue gas coming from above S-shaped in the direction of the arrows 6 drive down to exit 7. The plates 5 have water channels at their lateral edges, which are connected via guides running transversely to the flue gas flows, from one plate 5 to the next, higher plate 5 in the direction of arrows 8. Below, the colder water is supplied at about 9 ; the heated water leaves the main heat exchanger at plate 5, which is the top. The water then reaches the bottom of the water chamber 3, which surrounds the combustion chamber 1.

Die die beiden Stirnseiten 1o des Gehäuses verbindenden Seitenteile 11 sind im wesentlichen über die Höhe des Bereichs b deckelartig als auswechselbare Seitenwände 12 ausgeführt, an die sich innen die Ränder der Platten 5 anschliessen. Diese Seitenwände 12 können schon den Abschluss des Gehäuses nach aussen bilden, sie können aber noch mit einer Abdeckung 13 versehen sein, die auch als Isolierschicht ausgeführt sein kann.The side parts 11 connecting the two end faces 10 of the housing are designed like covers, essentially over the height of the area b, as exchangeable side walls 12, to which the edges of the plates 5 adjoin on the inside. These side walls 12 can already form the end of the housing to the outside, but they can also be provided with a cover 13, which can also be designed as an insulating layer.

Die zu beiden Seiten des Gehäuses befindlichen Seitenwände 12 gemäss Fig. 3 sind als plattenförmige Wärmetauscher in der Weise ausgeführt, dass ihrem Hohlraum 14 ggfs. mehreren Hohlräumen im Sinne der Pfeile 15 von der Zuführungsstelle 9 Wasser zugeleitet bzw. am oberen Rand Wasser abgeleitet und der Wasserkammer 3 zugeleitet werden kann. Diese Wasserführung am Eintritt und am Austritt der Seitenwände 12 wird durch die in Fig. 4 gezeigten Befestigungsmittel für die Seitenwände 12 erzielt.The side walls 12 on both sides of the housing according to FIG. 3 are designed as plate-shaped heat exchangers in such a way that their cavities 14 are supplied with several cavities in the sense of arrows 15 from the supply point 9 or water is discharged at the upper edge and the Water chamber 3 can be fed. This water flow at the entrance and exit of the side walls 12 is achieved by the fastening means for the side walls 12 shown in FIG. 4.

Vorgesehen ist eine Schraube 16 mit Kopf 17 und Schaft 18, die in ein durchgehendes Gewindeloch von Teil 3 bzw. 9 eingeschraubt ist. Der Schaft 18 ist mit einer Längsbohrung 19 versehen, die über eine radiale Bohrung 19' in einen Ringraum 20 mündet, welcher von einer mit einer Aussenbohrung 21 versehenen Hülse 22 aussen begrenzt ist. Dabei ist die Hülse 22 in der Länge und im Durchmesser so bemessen, dass sie als Distanzstück - ihre Länge entspricht praktisch der Wandstärke des Wärmetauschers 12 - dienen kann und ferner Wasser aus den das Wasser führenden Hohlräumen bzw. den Seitenwänden 12 und den Teilen 3, 9 nicht austreten kann. Die Hülse 22 bestimmt also den Abstand zwischen dem Kopf 17 und dem Teil 3 bzw. 9 und ist aussen gegenüber den Aussenwandungen des Wärmetauschers 12 abgedichtet. Das Wasser gelangt z.B. vom Hohlraum 14 über die Aussenbohrung 21 in den Ringraum 20 und von dort über die Bohrung 19' in die Längsbohrung 19 und von dort schliesslich in die Wasserkammer 3. In umgekehrter Richtung bewegt sich das Wasser von der Zuführungsstelle 9 in den Hohlraum 14.A screw 16 with head 17 and shaft 18 is provided, which is screwed into a continuous threaded hole of parts 3 and 9, respectively. The shaft 18 is provided with a longitudinal bore 19 which opens via a radial bore 19 'into an annular space 20 which is delimited on the outside by a sleeve 22 provided with an outer bore 21. The sleeve 22 is dimensioned in length and diameter such that it can serve as a spacer - its length practically corresponds to the wall thickness of the heat exchanger 12 - and also water from the cavities or the side walls 12 and the parts 3 that carry the water. 9 can not leak. The sleeve 22 thus determines the Distance between the head 17 and the part 3 or 9 and is sealed on the outside against the outer walls of the heat exchanger 12. The water reaches, for example, from the cavity 14 via the outer bore 21 into the annular space 20 and from there via the bore 19 'into the longitudinal bore 19 and from there finally into the water chamber 3. In the opposite direction, the water moves from the feed point 9 into the cavity 14.

Demgemäss dient die Befestigungsschraube 16 sowohl der Befestigung der Seitenwände 12 als auch der Überleitung von Wasser von der Wasserzufuhr zum Hohlraum 14 und von diesem in die Wasserkammer 3. Wird also eine Seitenwand 12 montiert, so wird hierdurch gleichzeitig der vorgenannte Wasserweg festgelegt.Accordingly, the fastening screw 16 serves both to fasten the side walls 12 and to transfer water from the water supply to the cavity 14 and from this into the water chamber 3. If a side wall 12 is thus mounted, the aforementioned water path is thereby simultaneously determined.

Eine andere Möglichkeit der Befestigung der Seitenwände 12 und der Wasserzufuhr zum Hohlraum 14 ist in den Fig. 5 - 7 dargestellt. Der Kessel gemäss Fig. 5 ist im wesentlichen gleich aufgebaut wie der vorgehend beschriebene. Er weist im oberen, mit a bezeichneten Bereich eine Verbrennungskammer 1 mit Brenner 2 auf, an die sich nach unten im Bereich b der Hauptwärmetauscher anschliesst. Das erwärmte Wasser verlässt den Kessel bei 36. Zusätzlich ist eine Neutralisationskammer 23 vorgesehen, durch die das vom Hauptwärmetauscher kommende Rauchgas geführt und in engen Kontakt mit Chemikalien gebracht wird, welche eine Reinigung des Rauchgases bewirken. Das Rauchgas verlässt die Neutralisationskammer bei 24.Another possibility of fastening the side walls 12 and supplying water to the cavity 14 is shown in FIGS. 5-7. 5 is constructed essentially the same as that described above. It has a combustion chamber 1 with a burner 2 in the upper region, designated a, to which the main heat exchanger is connected downwards in region b. The heated water leaves the boiler at 36. In addition, a neutralization chamber 23 is provided through which the flue gas coming from the main heat exchanger is guided and brought into close contact with chemicals which cause the flue gas to be cleaned. The flue gas leaves the neutralization chamber at 24.

Die gemäss Fig. 6 als plattenförmige Wärmetauscher ausgeführten Seitenwände 12 weisen Abdeckungen 13 und Hohlräume 14 auf. Sie sind durch Scharniere 25 und 26 derart am Kesselgehäuse befestigt, dass sie türartig um eine senkrechte Achse 27 verschwenkBar sind.The side walls 12 designed as plate-shaped heat exchangers according to FIG. 6 have covers 13 and cavities 14. They are attached to the boiler housing by hinges 25 and 26 in such a way that they can be pivoted like a door about a vertical axis 27.

Gemäss Fig. 7 bestehen die Scharniere 25 und 26 aus zwei konzentrisch ineinandergesetzten Rohren 28 und 29. Das innere Rohr 28 ist dabei mit der Seitenwand 12 verbunden, während das äussere Rohr 29 am Kesselgehäuse befestigt ist. Zur Montage der Seitenwand 12 werden die inneren Rohre 28 von unten her in die äusseren Rohre 29 eingeführt und die Seitenwand 12 gegen das Kesselgehäuse geklappt. Ein Widerlager 30 verhindert dann ein Verschieben der Seitenwand 12 nach unten in Richtung der Schwenkachse 27. Durch weitere Befestigungsmittel, z.B. Schrauben 31, ist die Seitenwand 12 dicht am Kesselgehäuse befestigt.7, the hinges 25 and 26 consist of two concentrically nested tubes 28 and 29. The inner tube 28 is connected to the side wall 12, while the outer tube 29 is attached to the boiler housing. To assemble the side wall 12, the inner tubes 28 are inserted from below into the outer tubes 29 and the side wall 12 is folded against the boiler housing. An abutment 30 then prevents the side wall 12 from moving downward in the direction of the pivot axis 27. By means of further fastening means, e.g. Screws 31, the side wall 12 is tightly attached to the boiler housing.

Das innere Rohr 28 des Scharniers 25 bzw. 26 ist mit Nuten 34 versehen, in welche Rundschnurringe 35 eingelegt sind. Die Rundschnurringe 35 beaufschlagen die Innenfläche des äusseren Rohres 29. Sie dichten die Scharniere 25, 26 ab, ohne deren Bewegungsfähigkeit zu beeinträchtigen.The inner tube 28 of the hinge 25 or 26 is provided with grooves 34, in which round cord rings 35 are inserted. The round cord rings 35 act on the inner surface of the outer tube 29. They seal the hinges 25, 26 without impairing their mobility.

Im Sinne der Pfeile 15 wird Wasser von der Zuführungsstelle 9 durch die Rohre 29 und 28 des unteren Scharniers 25 in den Hohlraum 14 in der Seitenwand 12 eingeleitet und über das obere Scharnier 26 abgeführt. Ein Leitblech 32 im Hohlraum 14 bewirkt eine Strömung im Sinne der Pfeile 33 und somit eine günstige Verteilung des Wassers. Es können auch mehrere Leitbleche 32 im Hohlraum 14 angeordnet sein.In the direction of the arrows 15, water is introduced from the supply point 9 through the pipes 29 and 28 of the lower hinge 25 into the cavity 14 in the side wall 12 and discharged via the upper hinge 26. A baffle 32 in the cavity 14 causes a flow in the direction of the arrows 33 and thus a favorable distribution of the water. A plurality of baffles 32 can also be arranged in the cavity 14.

Die Scharniere 25, 26 dienen demgemäss gleichzeitig zur Befestigung der Seitenwand 12 am Kesselgehäuse und zum Zu- und Ableiten von Wasser zum Hohlraum 14. Von besonderem Vorteil ist bei dieser Anordnung, dass z.B. bei Wartungs- und Reparaturarbeiten der Innenraum des Kessels in einfacher Weise durch Verschwenken der Seitenwand 12 zugänglich ist, ohne dass der Wasserweg wird dabei unterbrochen wird.The hinges 25, 26 are accordingly used simultaneously to fasten the side wall 12 to the boiler housing and to supply and discharge water to the cavity 14. It is particularly advantageous with this arrangement that e.g. during maintenance and repair work, the interior of the boiler is easily accessible by pivoting the side wall 12 without interrupting the water path.

Claims (14)

Vorrichtung zum Erwärmen von Wasser, insb. Warmwasserheizkessel, mit einer von einer oder mehreren Wasserkammern umschlossenen Verbrennungskammer und einem unterhalb der Verbrennungskammer angeordneten Wärmetauscher ( Hauptwärmetauscher ) aus einander parallelen, zur Aufnahme von Wasser ausgebildeten Platten, die zur Bildung eines s-förmigen Abzugskanals für die Rauchgase gegeneinander versetzt sind, wobei die Verbrennungskammer und der Hauptwärmetauscher in einem Gehäuse angeordnet sind, das über den Bereich des Hauptwärmetauschers ein- oder beidseitig mit einer auswechselbaren Seitenwand ausgestattet ist, dadurch gekennzeichnet, dass die Seitenwand (12) als wasserdurchströmter Wärmetauscher ausgebildet ist.Device for heating water, in particular hot water boilers, with a combustion chamber enclosed by one or more water chambers and a heat exchanger (main heat exchanger) arranged below the combustion chamber, made of parallel plates designed to hold water and used to form an S-shaped exhaust duct for the Flue gases are offset from one another, the combustion chamber and the main heat exchanger being arranged in a housing which is provided with an exchangeable side wall on one or both sides over the area of the main heat exchanger, characterized in that the side wall (12) is designed as a heat exchanger through which water flows. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der von den Seitenwänden (12) gebildete Wärmetauscher zum Hauptwärmetaucher (4) parallel geschaltet ist.Device according to claim 1, characterized in that the heat exchanger formed by the side walls (12) is connected in parallel to the main heat exchanger (4). Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die Wasserzufuhr für den Wärmetauscher (12) von der Wasserzufuhr (9) für den Hauptwärmetauscher (4) abgeleitet ist, und zwar mit einer solchen Rangfolge der Zufuhrleitungen zum Wärmetauscher (12) und Hauptwärmetauscher (4), dass das Wasser primär und vorwiegend dem Hauptwärmetauscher (4) zuleitbar ist.Apparatus according to claim 1 and 2, characterized in that the water supply for the heat exchanger (12) is derived from the water supply (9) for the main heat exchanger (4), with such a ranking of the supply lines to the heat exchanger (12) and Main heat exchanger (4) that the water can be fed primarily and mainly to the main heat exchanger (4). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Wasseraustritt des Wärmetauschers (12) mit der die Verbrennungskammer (1) umschliessenden Wasserkammer (3) verbunden ist.Device according to claim 1, characterized in that the water outlet of the heat exchanger (12) is connected to the water chamber (3) surrounding the combustion chamber (1). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Befestigung des Wärmetauschers (12) durch eine oder mehrere, diesen Tauscher durchsetzende Schrauben (16) mit einer Längsbohrung (19) im Schaft (18) erfolgt, der eine zum Hohlraum (14) des Wärmetauschers (12) führende Längsbohrung (19) aufweist und in ein durchgehendes Gewindeloch eines wasserführenden Teiles (3,9) einschraubbar ist.Device according to claim 1, characterized in that the heat exchanger (12) is fastened by one or more screws (16) passing through this exchanger and having a longitudinal bore (19) in the shaft (18), one to the cavity (14) of the heat exchanger (12) has a leading longitudinal bore (19) and can be screwed into a continuous threaded hole in a water-carrying part (3,9). Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Bohrung (19) in einen Ringraum (20) führt, der aussen von einer den Schaft (18) umschliessenden Hülse (22) begrenzt ist und über eine Bohrung (21) mit dem Hohlraum (14) der Wärmetauschers (12) in Verbindung steht, wobei die Hülse (22) als ein der Wandstärke des Wärmetauschers (12) entsprechender Distanzkörper ausgeführt ist.Apparatus according to claim 5, characterized in that the bore (19) leads into an annular space (20) which is delimited on the outside by a sleeve (22) surrounding the shaft (18) and via a bore (21) with the cavity (14 ) the heat exchanger (12) is connected, the sleeve (22) being designed as a spacer corresponding to the wall thickness of the heat exchanger (12). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Seitenwand (12) klappenartig verschwenkbar gelagert ist und die dazu vorgesehenen Scharniere (25, 26) zum Zuleiten und Ableiten des Wassers dienen.Apparatus according to claim 1, characterized in that the side wall (12) is pivotally mounted in a flap-like manner and the hinges (25, 26) provided for this purpose serve to supply and drain the water. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Seitenwand (12) um eine senkrechte Achse (27) türartig verschwenkbar ist.Device according to claim 1, characterized in that the side wall (12) can be pivoted like a door about a vertical axis (27). Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Scharniere (25, 26) aus zwei ineinander gesteckten Rohren (28, 29) bestehen.Apparatus according to claim 7, characterized in that the hinges (25, 26) consist of two tubes (28, 29) inserted into one another. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass zwischwen den Rohren (28, 29) ein oder mehrere Dichtungsringe (35) angeordnet sind.Apparatus according to claim 9, characterized in that one or more sealing rings (35) are arranged between the tubes (28, 29). Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass das innere Rohr (28) an der Seitenwand (12) und das äussere Rohr (29) am Kesselgehäuse befestigt ist.Apparatus according to claim 9, characterized in that the inner tube (28) on the side wall (12) and the outer tube (29) is fixed to the boiler housing. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Seitenwand (12) durch ein Widerlager (30) gegen Verschieben in Richtung der Schwenkachse (27) gesichert ist.Apparatus according to claim 9, characterized in that the side wall (12) is secured against displacement in the direction of the pivot axis (27) by an abutment (30). Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass das innere Rohr (28) von unten in das äussere Rohr (29) eingeschoben ist.Apparatus according to claim 9, characterized in that the inner tube (28) is inserted from below into the outer tube (29). Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass in der Seitenwand (12) ein oder mehrere Leitbleche (32) angeordnet sind.Apparatus according to claim 9, characterized in that one or more baffles (32) are arranged in the side wall (12).
EP95102541A 1994-03-18 1995-02-23 Water heating apparatus Expired - Lifetime EP0672870B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4409348 1994-03-18
DE4409348A DE4409348A1 (en) 1994-03-18 1994-03-18 Device for heating water, in particular hot water boiler

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EP0672870A1 true EP0672870A1 (en) 1995-09-20
EP0672870B1 EP0672870B1 (en) 1998-05-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP95102541A Expired - Lifetime EP0672870B1 (en) 1994-03-18 1995-02-23 Water heating apparatus

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EP (1) EP0672870B1 (en)
AT (1) ATE166446T1 (en)
DE (2) DE4409348A1 (en)
DK (1) DK0672870T3 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1815882A (en) * 1929-05-16 1931-07-21 Davidson Louis Boiler
DE3318468A1 (en) * 1983-05-20 1984-11-22 Richard 3150 Peine Vetter Appliance for heating water, especially a hot water heating boiler
EP0202641A2 (en) * 1985-05-22 1986-11-26 SchiEver GmbH Heater

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1815882A (en) * 1929-05-16 1931-07-21 Davidson Louis Boiler
DE3318468A1 (en) * 1983-05-20 1984-11-22 Richard 3150 Peine Vetter Appliance for heating water, especially a hot water heating boiler
EP0202641A2 (en) * 1985-05-22 1986-11-26 SchiEver GmbH Heater

Also Published As

Publication number Publication date
DE4409348A1 (en) 1995-09-21
DK0672870T3 (en) 1999-02-15
EP0672870B1 (en) 1998-05-20
ATE166446T1 (en) 1998-06-15
DE59502204D1 (en) 1998-06-25

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