EP0573742A1 - Boiler for low temperature heating systems - Google Patents

Boiler for low temperature heating systems Download PDF

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Publication number
EP0573742A1
EP0573742A1 EP93104171A EP93104171A EP0573742A1 EP 0573742 A1 EP0573742 A1 EP 0573742A1 EP 93104171 A EP93104171 A EP 93104171A EP 93104171 A EP93104171 A EP 93104171A EP 0573742 A1 EP0573742 A1 EP 0573742A1
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EP
European Patent Office
Prior art keywords
boiler
combustion chamber
water jacket
water
boiler according
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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.)
Granted
Application number
EP93104171A
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German (de)
French (fr)
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EP0573742B1 (en
Inventor
Hartmut Nohren
Andreas Walter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Interdomo & Co Heizungs- und Warmetechnik GmbH
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Interdomo & Co Heizungs- und Warmetechnik GmbH
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Publication of EP0573742A1 publication Critical patent/EP0573742A1/en
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Publication of EP0573742B1 publication Critical patent/EP0573742B1/en
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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
    • F24H9/0005—Details for water heaters
    • F24H9/0036—Dispositions against condensation of combustion products
    • 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
    • F24H1/285—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 with the fire tubes arranged alongside the combustion chamber

Definitions

  • the invention relates to a boiler for low temperature heating according to the preamble of the main claim.
  • DE-C-34 12 331 C1 describes a generic boiler for low-temperature heating systems, in which an annular space which creates an insulating effect is created, so that it is ensured that temperatures are always present in this annular space which prevent the formation of condensate in the finned tube, ie Water temperatures that are above the dew point of the combustion gases.
  • ie Water temperatures that are above the dew point of the combustion gases.
  • the invention has for its object to improve the generic device in such a way that an even greater energy yield can be achieved without the fear of condensation.
  • the exhaust pipe is returned a long way through the actual boiler, within the primary circuit, so that this exhaust pipe is always surrounded by a water jacket that has a temperature of has at least 50 °. This eliminates the formation of condensate, but on the other hand uses the thermal energy still in the exhaust gas as far as possible.
  • 1 denotes a combustion chamber, from which the joint arrangements 12 for a door to be hung can be seen on the right, the door carrying a burner, so that when the door is closed, the flame F of the burner burns into the combustion chamber 1.
  • the resulting exhaust gases are guided in a first train in the combustion chamber, then diverted into a second train 14, from there through a turning chamber 11 to the exhaust duct 2, from where the exhaust gases are discharged.
  • the train 14, which is formed by the boiler wall 22 and the insert tube 23, is equipped with heat-conducting fins 21, which ensure good heat transfer.
  • a boiler water jacket 3 can be seen, into which a return 4 opens and from which a flow 5 starts.
  • the real one Combustion chamber 1 is surrounded by a water annulus 6, which can be referred to as a primary circuit, while the boiler water jacket 3 can be referred to as a secondary circuit.
  • FIG. 1 shows a wall 7 which separates the boiler water jacket 3 from the water annulus 6 and in this wall 7 two openings 8 and 9 are provided.
  • the opening 8 is closed by a thermostatic valve 10, which opens at a corresponding temperature of the water, while the opening 9 is always open.
  • the return line 4 leads into the opening 9 with the interposition of a flow nozzle 15.
  • This nozzle 15 is located in the pipe socket 16, while a pipe socket 17 adjoins the opening 9 and opens towards the nozzle 15.
  • the cold water that flows in via the return 4 is therefore in principle directed into the water ring space 6 when the water can enter here. However, the water can only enter if it displaces water from the water annulus 6 via the opened thermostatic valve 10, which then enters the boiler water jacket 3 and leads to the flow from here.
  • FIG 3 shows an arrangement in which the wall 22 of the burner chamber 1 a is not is provided with ribs.
  • the exhaust gas duct according to FIG. 2 is broken down into two exhaust gas ducts 2a and 2b, these two exhaust gas ducts 2a and 2b being closed on their underside by a separate wall, which is not at the same time as in the embodiment according to FIG. 2 the wall of the burner chamber is, but is independent.
  • a water layer is formed between the underside of the exhaust gas ducts 2a and 2b and the wall 20 of the burner chamber 1a, which contributes to good heat transfer.
  • This configuration compensates for the poorer heat utilization in the third exhaust gas flue caused by the missing ribs 21.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Control Of Combustion (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Incineration Of Waste (AREA)
  • Chimneys And Flues (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

The invention relates to a boiler for low temperature heating systems with a primary circuit (6) and a secondary circuit (3), the boiler being designed as a three-pass boiler and the actual waste-gas duct (2), i.e. the third pass, lying within the primary circuit (6). <IMAGE>

Description

Die Erfindung bezieht sich auf einen Heizkessel für Niedertemperaturheizungen gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a boiler for low temperature heating according to the preamble of the main claim.

In der DE-C-34 12 331 C1 wird ein gattungsbildender Heizkessel für Niedertemperaturheizungen beschrieben, bei welchem ein eine Isolationswirkung herbeiführender Ringraum geschaffen wird, so daß sichergestellt ist, daß in diesem Ringraum immer Temperaturen vorliegen, die die Kondensatbildung im Rippenrohr unterbinden, d. h. also Wassertemperaturen, die über dem Taupunkt der Verbrennungsgase liegen. üblicherweise herrschen in diesem als Primärkreis zu bezeichnenden sogenannten Wasserringraum Temperaturen von mindestens 50°, während in dem Sekundärkreis, der auch als Kesselwassermantel bezeichnet wird, niedrigere Temperaturen, z.B. bis 20° auftreten können.DE-C-34 12 331 C1 describes a generic boiler for low-temperature heating systems, in which an annular space which creates an insulating effect is created, so that it is ensured that temperatures are always present in this annular space which prevent the formation of condensate in the finned tube, ie Water temperatures that are above the dew point of the combustion gases. Usually there are temperatures of at least 50 ° in this so-called primary circuit, which is referred to as the primary circuit, while lower temperatures, for example up to 20 °, can occur in the secondary circuit, which is also referred to as the boiler water jacket.

Zwischen dem Primärkreis und dem Sekundärkreis müssen Verbindungen hergestellt sein, die bei dem gattungsbildenden Stand der Technik durch zwei Öffnungen erreicht werden, von denen die eine stets offen und die andere über ein Thermostatventil geregelt wird.Connections must be made between the primary circuit and the secondary circuit, which are achieved in the generic state of the art through two openings, one of which is always open and the other is controlled by a thermostatic valve.

Der Erfindung liegt die Aufgabe zugrunde, die gattungsbildende Einrichtung dahingehend zu verbessern, daß eine noch größere Energieausbeute erreichbar ist, ohne daß aber eine Kondensatbildung befürchtet werden muß.The invention has for its object to improve the generic device in such a way that an even greater energy yield can be achieved without the fear of condensation.

Diese der Erfindung zugrundeliegende Aufgabe wird durch die Lehre des Hauptanspruches gelöst.This object on which the invention is based is achieved by the teaching of the main claim.

Vorteilhafte Ausgestaltungen sind in den Unteransprüchen erläutert.Advantageous configurations are explained in the subclaims.

Mit anderen Worten ausgedrückt wird vorgeschlagen, daß im Gegensatz zum gattungsbildenden Stand der Technik das Abgasrohr über einen langen Weg hinweg durch den eigentlichen Kessel zurückgeführt wird, und zwar innerhalb des Primärkreises, so daß stets dieses Abgasrohr mit einem Wassermantel umgeben ist, der eine Temperatur von mindestens 50° aufweist. Hierdurch werden Kondensatbildungen ausgeschaltet, andererseits aber die sich noch im Abgas befindende Wärmeenergie möglichst weitgehend ausgenutzt.In other words, it is proposed that, in contrast to the generic state of the art, the exhaust pipe is returned a long way through the actual boiler, within the primary circuit, so that this exhaust pipe is always surrounded by a water jacket that has a temperature of has at least 50 °. This eliminates the formation of condensate, but on the other hand uses the thermal energy still in the exhaust gas as far as possible.

Aus der DE-A-40 09 486 bzw. dem DE-U-90 17 790 ist es zwar grundsätzlich bekannt, den Kessel als sogenannten "Dreizugkessel" auszubilden, d. h. die Abgase werden vom Brennerraum zurück zum vorderen Teil des Brennerraums gelenkt, nach oben geführt und dann in einem sich zur Rückseite des Kessels erstreckenden Heizzug eingeleitet, der sich zum Rauchgassammler erstreckt. Diese Kessel weisen keinen Primär- und Sekundärkreislauf auf, so daß der dritte Zug auch nicht im Wasserringraum angeordnet sein kann.From DE-A-40 09 486 and DE-U-90 17 790 it is known in principle to design the boiler as a so-called "three-pass boiler", ie the exhaust gases are directed from the burner chamber back to the front part of the burner chamber, upwards led and then initiated in a heating train extending to the rear of the boiler, which extends to the flue gas collector. These boilers have no primary and secondary circuit, so that the third train can not be arranged in the water annulus.

Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnungen erläutert. Die Zeichnungen zeigen dabei in

Fig. 1
einen Seitenschnitt durch einen Kessel, in
Fig. 2
einen Querschnitt durch einen Kessel und in
Fig. 3
einen Querschnitt durch einen Kessel in einer abgewandelten Ausführungsform.
Embodiments of the invention are explained below with reference to the drawings. The drawings show in
Fig. 1
a side section through a kettle, in
Fig. 2
a cross section through a boiler and in
Fig. 3
a cross section through a boiler in a modified embodiment.

In den Fig. 1 und 2 ist mit 1 eine Brennkammer bezeichnet, von der rechts die Gelenkanordnungen 12 für eine einzuhängende Tür erkennbar ist, wobei die Tür einen Brenner trägt, so daß bei geschlossener Tür die Flamme F des Brenners in die Brennkammer 1 hineinbrennt. Die entstehenden Abgase werden in einem ersten Zug in der Brennkammer geführt, dann in einen zweiten Zug 14 umgelenkt, von dort aus durch eine Wendekammer 11 zum Abgaskanal 2 geführt, von wo aus die Abgase abgeleitet werden. Der Zug 14, der durch die Kesselwand 22 und das Einsatzrohr 23 gebildet wird, ist mit Wärmeleitrippen 21 ausgerüstet, die für einen guten Wärmeübergang sorgen.1 and 2, 1 denotes a combustion chamber, from which the joint arrangements 12 for a door to be hung can be seen on the right, the door carrying a burner, so that when the door is closed, the flame F of the burner burns into the combustion chamber 1. The resulting exhaust gases are guided in a first train in the combustion chamber, then diverted into a second train 14, from there through a turning chamber 11 to the exhaust duct 2, from where the exhaust gases are discharged. The train 14, which is formed by the boiler wall 22 and the insert tube 23, is equipped with heat-conducting fins 21, which ensure good heat transfer.

Im oberen Bereich des Kessels ist ein Kesselwassermantel 3 erkennbar, in den ein Rücklauf 4 mündet und von dem ein Vorlauf 5 ausgeht. Die eigentliche Brennkammer 1 ist von einem Wasserringraum 6 umgeben, der als Primärkreis bezeichnet werden kann, während der Kesselwassermantel 3 als Sekundärkreis bezeichnet werden kann.In the upper area of the boiler, a boiler water jacket 3 can be seen, into which a return 4 opens and from which a flow 5 starts. The real one Combustion chamber 1 is surrounded by a water annulus 6, which can be referred to as a primary circuit, while the boiler water jacket 3 can be referred to as a secondary circuit.

Aus Fig. 1 ist eine Wandung 7 erkennbar, die den Kesselwassermantel 3 vom Wasserringraum 6 trennt und in dieser Wandung 7 sind zwei Öffnungen 8 und 9 vorgesehen. Die Öffnung 8 wird von einem Thermostatventil 10 verschlossen, das bei entsprechender Temperatur des Wassers öffnet, während die Öffnung 9 stets offen ist. In die Öffnung 9 führt die Rücklaufleitung 4 unter Zwischenschaltung einer Strömungsdüse 15. Diese Düse 15 befindet sich in dem Rohrstutzen 16, während sich an die Öffnung 9 ein Rohrstutzen 17 anschließt, der sich gegenüber der Düse 15 öffnet. Das kalte Wasser, das über den Rücklauf 4 zuströmt, wird also im Prinzip dann in den Wasserringraum 6 geleitet, wenn das Wasser hier eintreten kann. Das Wasser kann aber nur dann eintreten, wenn es über das geöffnete Thermostatventil 10 Wasser aus dem Wasserringraum 6 verdrängt, das dann in den Kesselwassermantel 3 eintritt und von hier zum Vorlauf führt.1 shows a wall 7 which separates the boiler water jacket 3 from the water annulus 6 and in this wall 7 two openings 8 and 9 are provided. The opening 8 is closed by a thermostatic valve 10, which opens at a corresponding temperature of the water, while the opening 9 is always open. The return line 4 leads into the opening 9 with the interposition of a flow nozzle 15. This nozzle 15 is located in the pipe socket 16, while a pipe socket 17 adjoins the opening 9 and opens towards the nozzle 15. The cold water that flows in via the return 4 is therefore in principle directed into the water ring space 6 when the water can enter here. However, the water can only enter if it displaces water from the water annulus 6 via the opened thermostatic valve 10, which then enters the boiler water jacket 3 and leads to the flow from here.

Aus der Zeichnung, insbesondere Fig. 2, ist deutlich zu ersehen, daß der Abgaskanal 2 noch innerhalb des Wasserringraumes 6, d. h. des Primärkreises, liegt und über die ganze Länge der Brennkammer 1 zurückgeführt wird,so daß hier eine weitgehende Ausnutzung der in den Abgasen enthaltenen Wärme eintreten kann.From the drawing, in particular Fig. 2, it can be clearly seen that the exhaust duct 2 is still within the water annulus 6, d. H. of the primary circuit, lies and is returned over the entire length of the combustion chamber 1, so that extensive use of the heat contained in the exhaust gases can occur here.

Aus Fig. 3 ist eine Anordnung ersichtlich, bei welcher die Wandung 22 des Brennerraumes 1a nicht mit Rippen versehen ist.3 shows an arrangement in which the wall 22 of the burner chamber 1 a is not is provided with ribs.

Der Abgaskanal gemäß Fig. 2 ist bei der Ausführungsform gemäß Fig. 3 in zwei Abgaskanäle 2a und 2b aufgelöst, wobei diese beiden Abgaskanäle 2a und 2b an ihrer Unterseite durch eine eigene Wand geschlossen sind, die nicht wie bei der Ausführungsform gemäß Fig. 2 gleichzeitig die Wandung des Brennerraumes ist, sondern selbständig ist. Hierdurch wird zwischen der Unterseite der Abgaskanäle 2a und 2b und der Wandung 20 des Brennerraumes 1a eine Wasserschicht gebildet, die zu einer guten Wärmeübertragung beiträgt. Durch diese Ausbildung wird die durch die fehlenden Rippen 21 bedingte schlechtere Wärmeausnutzung im dritten Abgaszug kompensiert.In the embodiment according to FIG. 3, the exhaust gas duct according to FIG. 2 is broken down into two exhaust gas ducts 2a and 2b, these two exhaust gas ducts 2a and 2b being closed on their underside by a separate wall, which is not at the same time as in the embodiment according to FIG. 2 the wall of the burner chamber is, but is independent. As a result, a water layer is formed between the underside of the exhaust gas ducts 2a and 2b and the wall 20 of the burner chamber 1a, which contributes to good heat transfer. This configuration compensates for the poorer heat utilization in the third exhaust gas flue caused by the missing ribs 21.

Claims (10)

Heizkessel für Niedertemperaturheizungen mit einem Abgaskanal (2) und mit einem eine Brennkammer (1) für eine Brennerfeuerung umgebenden Kesselwassermantel (3) (Sekundärkreis), der mit Vorlauf- (5) und Rücklaufanschlüssen (4) ausgerüstet ist, wobei zwischen dem Kesselwassermantel (3) (Sekundärkreis) und der Brennkammer (1) ein dem Umfang des Brennraumes angepaßter Wasserringraum (6) (Primärkreis) vorgesehen ist, der mit dem Kesselwassermantel (3) in Verbindung steht, wobei die Größe des Wasserringraumes (6) wesentlich kleiner als die Größe des Kesselwassermantels (3) ist und in der Wandung (7), die den Wasserringraum (6) zum Kesselwassermantel (3) begrenzt, zwei Öffnungen (8, 9) vorgesehen sind, wobei die eine Öffnung (9) stets offen und die andere Uffnung (8)aber durch ein darin angeordnetes Thermostatventil (10) verschließbarist, dadurch gekennzeichnet, daß der Heizkessel als Dreizugkessel (Brennkammer (1), Zug (14) und Abgaskanal (2)) ausgebildet ist und der Abgaskanal (2) innerhalb des Wasserringraumes (6) angeordnet ist.Boiler for low-temperature heating with an exhaust gas duct (2) and with a boiler water jacket (3) (secondary circuit) surrounding a combustion chamber (1) for burner firing, which is equipped with flow (5) and return connections (4), with the boiler water jacket (3 ) (Secondary circuit) and the combustion chamber (1) a water ring space (6) (primary circuit) adapted to the circumference of the combustion chamber is provided, which is connected to the boiler water jacket (3), the size of the water ring space (6) being significantly smaller than the size of the boiler water jacket (3) and in the wall (7) which delimits the water annulus (6) to the boiler water jacket (3), two openings (8, 9) are provided, one opening (9) always open and the other opening (8) but can be closed by a thermostatic valve (10) arranged therein, characterized in that the boiler is designed as a three-pass boiler (combustion chamber (1), train (14) and exhaust gas duct (2)) and the exhaust gas anal (2) is arranged within the water annulus (6). Heizkessel nach Anspruch 1, dadurch gekenn zeichnet, daß der Abgaskanal (2) im oberen Bereich des Wasserringraumes (6) angeordnet ist. Boiler according to claim 1, characterized in that the exhaust duct (2) is arranged in the upper region of the water annulus (6). Heizkessel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Abgaskanal (2) im Querschnitt einteilig ausgebildet ist.A boiler according to claim 1 or 2, characterized in that the flue duct (2) Cross section is formed in one piece. Heizkessel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Abgaskanal im Querschnitt zweiteilig ausgebildet ist (Fig. 3).A boiler according to claim 1 or 2, characterized in that the flue duct is formed in two parts in cross section (Fig. 3). Heizkessel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Abgaskanal (2) oder die Abgaskanäle (2a und 2b) an ihrer zur Brennkammer (1) hin gerichteten Seite wassergekühlt sind (Fig. 3).Boiler according to one of the preceding claims, characterized in that the flue gas duct (2) or the flue gas ducts (2a and 2b) are water-cooled on their side facing the combustion chamber (1) (Fig. 3). Heizkessel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Rücklaufleitung (4) innerhalb des Kesselwassermantels (3) im Bereich der stets offenen Öffnung (9) mündet und diese stets offene Öffnung (9) von der das Thermostatventil (10) aufnehmenden Öffnung entfernt ist.A boiler according to any one of the preceding claims, characterized in that the return line (4) opens inside the boiler water jacket (3) in the area of always open opening (9) and this always open opening (9) of the thermostatic valve (10) receiving aperture removed is. Heizkessel nach Anspruch 6, dadurch gekenn zeichnet, daß die Rücklaufleitung (4) innerhalb des Kesselwassermantels (3) in eine Strömungsdüse (15) mündet, deren Düsenstrahl auf die Öffnung (9) gerichtet ist. Boiler according to claim 6, characterized in that the return line (4) opens inside the boiler water jacket (3) into a flow nozzle (15), the jet of which is directed towards the opening (9). Heizkessel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß im Bereich der Brennermündung die Brennkammer (1) eine Wendekammer (11) aufweist, die die aus der Brennkammer (1) durch den zweiten Zug (14) fließenden Gase in den dritten Zug, d. h. den Abgaskanal (2), umleitet.Boiler according to one of the preceding claims, characterized in that in the region of the burner mouth, the combustion chamber (1) has a turning chamber (11) which the gases flowing from the combustion chamber (1) through the second train (14) into the third train, ie the exhaust duct (2). Heizkessel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Innenseite der Brennkammer (1) mit Rippen ausgerüstet ist (Fig. 2).Boiler according to one of the preceding claims, characterized in that the inside of the combustion chamber (1) is equipped with ribs (Fig. 2). Heizkessel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Brennkammer (1a) rippenfrei ausgebildet ist.Boiler according to one of the preceding claims, characterized in that the combustion chamber (1a) is rib-free.
EP93104171A 1992-06-06 1993-03-15 Boiler for low temperature heating systems Expired - Lifetime EP0573742B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4218755 1992-06-06
DE4218755A DE4218755C2 (en) 1992-06-06 1992-06-06 Boiler for low temperature heating

Publications (2)

Publication Number Publication Date
EP0573742A1 true EP0573742A1 (en) 1993-12-15
EP0573742B1 EP0573742B1 (en) 1995-07-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104171A Expired - Lifetime EP0573742B1 (en) 1992-06-06 1993-03-15 Boiler for low temperature heating systems

Country Status (5)

Country Link
EP (1) EP0573742B1 (en)
AT (1) ATE125618T1 (en)
DE (2) DE4218755C2 (en)
DK (1) DK0573742T3 (en)
ES (1) ES2075735T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1008819A2 (en) 1998-12-11 2000-06-14 Vulcano-Sadeca, S.A. Hot water generator for operation at low temperature

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010054725B4 (en) 2010-12-16 2015-03-12 Interdomo Gmbh Two-circuit heating boiler with integrated condensing technology

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1536398A (en) * 1967-07-05 1968-08-16 Acova Vaux Andigny Boiler
BE729404A (en) * 1969-03-05 1969-08-18
DE1454464B1 (en) * 1963-10-09 1970-02-12 Otte & Co Kg Laurenz boiler
DE3412331C1 (en) * 1984-04-03 1985-10-31 Interdomo GmbH & Co Heizungs- und Wärmetechnik, 4407 Emsdetten Heating boiler for low-temperature heating systems
DE9105410U1 (en) * 1991-05-02 1992-02-27 Mayr, Manfred, 8851 Tagmersheim Central heating boiler

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4009486A1 (en) * 1990-03-22 1991-09-26 Sbs Heizkesselwerke B Schmidt Heating boiler for oil or gas fuel - has firebox partially surrounded by water jacket and turbulence generator fitted to flue
DE9017790U1 (en) * 1990-12-19 1992-01-02 Vießmann, Hans, Dr., 3559 Battenberg Boilers for burning liquid or gaseous fuels

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1454464B1 (en) * 1963-10-09 1970-02-12 Otte & Co Kg Laurenz boiler
FR1536398A (en) * 1967-07-05 1968-08-16 Acova Vaux Andigny Boiler
BE729404A (en) * 1969-03-05 1969-08-18
DE3412331C1 (en) * 1984-04-03 1985-10-31 Interdomo GmbH & Co Heizungs- und Wärmetechnik, 4407 Emsdetten Heating boiler for low-temperature heating systems
DE9105410U1 (en) * 1991-05-02 1992-02-27 Mayr, Manfred, 8851 Tagmersheim Central heating boiler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1008819A2 (en) 1998-12-11 2000-06-14 Vulcano-Sadeca, S.A. Hot water generator for operation at low temperature
EP1008819A3 (en) * 1998-12-11 2002-09-25 Vulcano-Sadeca, S.A. Hot water generator for operation at low temperature

Also Published As

Publication number Publication date
DE4218755A1 (en) 1993-12-09
DK0573742T3 (en) 1995-12-04
EP0573742B1 (en) 1995-07-26
DE59300402D1 (en) 1995-08-31
DE4218755C2 (en) 1994-03-17
ES2075735T3 (en) 1995-10-01
ATE125618T1 (en) 1995-08-15

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