EP0609854B1 - Heat generator for hot-water production and heating - Google Patents

Heat generator for hot-water production and heating Download PDF

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Publication number
EP0609854B1
EP0609854B1 EP94101511A EP94101511A EP0609854B1 EP 0609854 B1 EP0609854 B1 EP 0609854B1 EP 94101511 A EP94101511 A EP 94101511A EP 94101511 A EP94101511 A EP 94101511A EP 0609854 B1 EP0609854 B1 EP 0609854B1
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EP
European Patent Office
Prior art keywords
heating
container
section
tube
heat
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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.)
Expired - Lifetime
Application number
EP94101511A
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German (de)
French (fr)
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EP0609854A1 (en
Inventor
Helmut Prof. Dr.-Ing. Burger
Karl Heinz Schellberg
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.)
Viessmann Werke GmbH and Co KG
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Viessmann Werke GmbH and Co KG
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Classifications

    • 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
    • F24H1/287—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 in line with the combustion chamber
    • 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
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/50—Water heaters for central heating incorporating heaters for domestic water incorporating domestic water tanks

Definitions

  • the invention relates to a heat generator for water heating and heating operation according to the preamble of the main claim.
  • Heat generators of this type are, for example, according to US-A-5022 352 known.
  • This heat generator is a double-shell and essentially cylindrical forced draft burner in one Storage container arranged.
  • the heating gases are over a helically coiled pipe, which acts as a heat exchanger surface serves to heat the storage water, led out of the container.
  • This heat generator serves exclusively for water heating.
  • a simultaneous Space heating operation for example in the form of a connection option for a heating circuit for space heaters, is not intended.
  • the invention is accordingly based on the object compact and small-volume heat generator create the primary function of water heating is able to meet and maintain, but it can on the other hand and therefore also the function of a secondary Boilers can do something with simple means through appropriate reorganization of conventional heat generators should be achievable, combined with the stipulation that the Heating gas flow with the largest possible heat transfer area equip.
  • the heat exchanger is wound in the form of a flat spiral Bag formed, the diameter of which is essentially that Inner diameter of the helix formed from the line corresponds.
  • the combustion chamber is made of a hemispherical cross section Part and from an adjoining, tapered part formed.
  • the heat generator consists of a in a known manner essential cylindrical, vertical container 1 with Cold and hot water connections 2, 3 and with one Heating device, formed from a fan burner equipped arranged in the container 1 Schugas Entry 5, the from one to the upper region 1 'of the container 1 vertically extending part I and from an thereon subsequent, in the lower region 1 "of the container 1 this brought out and one in relation to part I having much larger heat exchanger area a helically coiled line 9 existing Part II is formed, with essentially the lower half H of part I than with respect to line 9 extended combustion chamber 6 and formed in this Burner 7 arranged centrally and vertically upwards is.
  • a heat exchanger 8 carrying heat transfer medium is arranged above the two parts I, II, which is designed in the form of a pocket 8' wound in a plane spiral.
  • the diameter D 2 of the plane spiral essentially corresponds to the inside diameter D 1 of the helix formed from the line 9, the heating feed and return connections 4, 4 'of the wound pocket 8' being led out of the upper region 1 'of the container 1 and the the lower part 6 'of the expanded combustion chamber 6 is arranged below the part II of the line 9 and has a size diameter D which also essentially corresponds to the inside diameter D 1 of the heating gas coil formed from the line 9.
  • the heat exchanger 8, which is part of the heating circuit 11 equipped with a pump 12, seen in projection covers the entire heating gas duct 5, the exhaust gas connection located in the lower region 1 ′′ of the container 1 in FIG. 1 being withdrawn from view.
  • the lower part 6 'of the expanded combustion chamber 6 is how shown, hemispherical in cross section. There is a tapering part 6 '' on these connected.

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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)
  • Sorption Type Refrigeration Machines (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention relates to a heat generator for hot water production and heating, consisting of a substantially cylindrical, vertical tank (1) with cold- and hot-water connections (2, 3), with an upper heating system flow and a lower heating system return connection (4, 5) and with a downward-directed burner heating device (6), formed from a heat transfer medium and heating-gas duct (7, 8) equipped with burner and passing centrally through the tank. According to the invention, between the bottom (9) of the downward-directed burner chamber (10) forming a first part of the heating-gas duct (8) and the lower closure (11) of the heat transfer medium duct (7) constructed as a smooth tube (12) there is arranged a tube set (R) forming the second part of the heating-gas duct (8) and consisting of a plurality of vertically extending individual tubes (13); according to the length of the tube set (R), the downward-directed burner chamber (10) is mounted at the upper end of the tube (12) or occupies an upper part of the length of the tube (12); arranged in the lower part of the tank (1) is a coiled pipe (14) which is connected to the flow connection (4), has a plurality of turns and surrounds the tubes (12) and this coiled pipe is connected at its lower end to the tube (12) and lastly a waste gas-collecting chamber (15) with waste-gas connection (16) and condensate drainage connection (17) is arranged below the closure (11) of the tube (12). <IMAGE>

Description

Die Erfindung betrifft einen Wärmeerzeuger für Warmwasserbereitung und Heizungsbetrieb gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a heat generator for water heating and heating operation according to the preamble of the main claim.

Wärmeerzeuger dieser Art sind bspw. nach der US-A-5022 352 bekannt. Bei diesem Wärmeerzeuger ist ein zweischaliger und im wesentlichen zylindrischer Gebläsebrenner in einem Speicherbehälter angeordnet. Die Heizgase werden über eine schraubenlinienförmig gewendelte Leitung, die als Wärmetauscherfläche zur Erhitzung des Speicherwassers dient, aus dem Behälter herausgeführt. Dieser Wärmeerzeuger dient ausschließlich der Warmwasserbereitung. Ein gleichzeitiger Raumheizungsbetrieb, bspw. in Form einer Anschlußmöglichkeit für einen Heizkreislauf für Raumheizkörper, ist nicht vorgesehen.Heat generators of this type are, for example, according to US-A-5022 352 known. This heat generator is a double-shell and essentially cylindrical forced draft burner in one Storage container arranged. The heating gases are over a helically coiled pipe, which acts as a heat exchanger surface serves to heat the storage water, led out of the container. This heat generator serves exclusively for water heating. A simultaneous Space heating operation, for example in the form of a connection option for a heating circuit for space heaters, is not intended.

Diesbezüglich sei auf einen aus der DE-A-39 06 715 bekannten Brauchwasserkessel mit Durchlauferhitzer für Heizungswasser verwiesen. Dieser Brauchwasserkessel dient also einerseits der Warmwasserbereitung, andererseits ist aber auch der Anschluß eines Heizkreises vorgesehen. Dabei erfolgt die Wärmeeinbringung über ein zentrisch den Behälter durchgreifendes, mit einem Sturzbrenner bestücktes Rohr, aus dem unten die Heizgase unmittelbar abströmen, wobei die Wärme der Heizgase aufgrund der vergleichsweise kleine Wärmeübertragungsfläche des Rohres relativ schlecht genutzt werden.In this regard, reference is made to DE-A-39 06 715 known hot water boiler with instantaneous water heater for Heating water directed. This hot water boiler serves So on the one hand the hot water preparation, on the other hand but also the connection of a heating circuit is provided. Here the heat is introduced via a centric Container reaching through, equipped with a lintel burner Pipe from which the heating gases immediately below flow away, the heat of the heating gases due to the comparatively small heat transfer area of the tube are used relatively poorly.

Bei Wohnraumheizungen, und zwar insbesondere bei vollwärmegedämmten kleineren Eigenheimen, ist die Tendenz festzustellen, daß zwar einerseits Heizkessel mit immer kleinerer Leistung eingesetzt, aber andererseits immer höhere Ansprüche an die Warmwasserbereitung bzw. -be- reithaltung gestellt werden. Dieser sich im Prinzip wiedersprechenden Tendenz kann keiner der bisher bekannten Wärmeerzeuger gerecht werden.For living room heating, especially with fully heat insulated smaller homes, is the trend notice that on the one hand boilers with always less power used, but on the other hand always higher demands on hot water preparation and heating riding stance. This in principle none of the previously known tendencies Meet heat generators.

Der Erfindung liegt demgemäß die Aufgabe zugrunde, einen kompakten und möglichst kleinvolumigen Wärmeerzeuger zu schaffen, der primär die Funktion der Warmwasserbereitung und -bereithaltung zu erfüllen vermag, der aber andererseits und damit sekundär auch die Funktion eines Heizkessels übernehmen kann, was mit einfachen Mitteln durch entsprechende Umbildung herkömmlicher Wärmeerzeuger erreichbar sein soll, verbunden mit der Maßgabe, dabei die Heizgasführung mit einer möglichst großen Wärmeübertragungsfläche auszustatten.The invention is accordingly based on the object compact and small-volume heat generator create the primary function of water heating is able to meet and maintain, but it can on the other hand and therefore also the function of a secondary Boilers can do something with simple means through appropriate reorganization of conventional heat generators should be achievable, combined with the stipulation that the Heating gas flow with the largest possible heat transfer area equip.

Diese Aufgabe ist mit einem Wärmeerzeuger der gattungsgemäßen Art nach der Erfindung durch die im Kennzeichen des Hauptanspruches genannten Merkmale gelöst.This task is with a heat generator of the generic type Kind according to the invention by the in the mark the main claim mentioned features solved.

Mit dieser erfindungsgemäßen Ausbildung ist nicht nur eine wesentliche Vergrößerung der übertragungswirksamen Wärmetauscherfläche erreicht, sondern diese ist auch im Behälter günstiger verteilt und ferner ist der Wärmetauscher, von dem aus die Heizung beschickt wird, dort angeordnet, wo dies am günstigsten ist. Durch die große Wärmetauscherfläche, die sich, wie gesagt, gut verteilt im Brauchwasser erstreckt, ist eine schnelle Aufwärmung des Brauchwassers erreichbar, zumal gemäß oben erwähnter Tendenz dieser damit besser entsprochen ist, die ja bis zu einem gewissen Grade bei der Nutzung im Vordergrund stehen soll.With this training according to the invention is not just one Significant enlargement of the heat exchanger surface effective for transmission reached, but this is also in Container distributed more cheaply and is also the Heat exchanger from which the heating is fed, arranged where it is cheapest. Through the large heat exchanger area, which, as I said, is good spread out in the process water is a quick one Warm water can be heated, especially according to the above mentioned tendency this is better suited to that yes to a certain extent when used in Should be in the foreground.

Um dabei die ganze Fläche über einer solchen Heizgasführung zu erfassen und in vorteilhafter Anpassung an die in der Regel zylindrische Form derartiger Behälter, ist der Wärmetauscher in Form einer planspiralig gewickelten Tasche ausgebildet, deren Durchmesser im wesentlichen dem Innendurchmesser der aus der Leitung gebildeten Wendel entspricht.To cover the entire area above such a heating gas duct to capture and in advantageous adaptation to the usually cylindrical shape of such containers the heat exchanger is wound in the form of a flat spiral Bag formed, the diameter of which is essentially that Inner diameter of the helix formed from the line corresponds.

Vorteilhafte Ausgestaltungen, insbesondere hinsichtlich der anzustrebenden Kompaktbauweise bestehen in Folgendem: Die Brennkammer ist aus einem im Querschnitt halbkugelförmigen Teil und aus einem sich daran anschließenden, sich nach oben verjüngenden Teil gebildet. Advantageous refinements, in particular with regard to The desired compact design consists of the following: The combustion chamber is made of a hemispherical cross section Part and from an adjoining, tapered part formed.

Der erfindungsgemäße Wärmeerzeuger wird nachfolgend anhand der zeichnerischen Darstellung eines Ausführungsbeispiels gemäß Fig. 1 näher erläutert.The heat generator according to the invention is described below the drawing of an embodiment 1 explained in more detail.

Der Wärmeerzeuger besteht in bekannter Weise aus einem im wesentlichen zylindrischen, vertikalen Behälter 1 mit Kalt- und Warmwasseranschlüssen 2, 3 und mit einer Heizeinrichtung, gebildet aus einer gebläsebrennerbestückten, im Behälter 1 angeordneten Heizgasführung 5, die aus einem bis in den oberen Bereich 1' des Behälters 1 vertikal erstreckten Teil I und aus einem sich daran anschließenden, im unteren Bereich 1" des Behälters 1 aus diesem herausgeführten und eine in bezug auf den Teil I wesentlich größere Wärmetauscherfläche aufweisenden, aus einer schraubenlinienförmig gewendelten Leitung 9 bestehenden Teil II gebildet ist, wobei im wesentlichen die untere Hälfte H des Teils I als in Bezug auf die Leitung 9 erweiterte Brennkammer 6 ausgebildet und in dieser der Brenner 7 mittig und vertikal nach oben orientiert angeordnet ist.The heat generator consists of a in a known manner essential cylindrical, vertical container 1 with Cold and hot water connections 2, 3 and with one Heating device, formed from a fan burner equipped arranged in the container 1 Heizgasführung 5, the from one to the upper region 1 'of the container 1 vertically extending part I and from an thereon subsequent, in the lower region 1 "of the container 1 this brought out and one in relation to part I having much larger heat exchanger area a helically coiled line 9 existing Part II is formed, with essentially the lower half H of part I than with respect to line 9 extended combustion chamber 6 and formed in this Burner 7 arranged centrally and vertically upwards is.

Wie aus der Darstellung gemäß Fig. 1 ersichtlich, ist im oberen Bereich 1' des Behälters 1 über den beiden Teilen I, II ein wärmeträgerführender Wärmetauscher 8 angeordnet, der in Form einer planspiralig gewickelten Tasche 8' ausgebildet ist. Der Durchmesser D2 der Planspirale entspricht im wesentlichen dem Innendurchmesser D1 der aus der Leitung 9 gebildeten Wendel, wobei die Heizungsvor- und -rücklaufanschlüsse 4, 4' der gewickelten Tasche 8' aus dem oberen Bereich 1' des Behälters 1 herausgeführt sind und der untere Teil 6' der erweiterten Brennkammer 6 unterhalb des Teiles II der Leitung 9 angeordnet ist und einen Größtdurchmesser D aufweist, der im wesentlichen ebenfalls dem Innendurchmesser D1 der aus der Leitung 9 gebildeten Heizgaswendel entspricht. Damit deckt der Wärmetauscher 8, der Teil des mit einer Pumpe 12 bestückten Heizkreises 11 ist, in Projektion gesehen, die ganze Heizgasführung 5 ab, deren im unteren Bereich 1" des Behälters 1 befindlicher Abgasanschluß in der Fig. 1 der Sicht entzogen ist.As can be seen from the illustration according to FIG. 1, in the upper region 1 'of the container 1, a heat exchanger 8 carrying heat transfer medium is arranged above the two parts I, II, which is designed in the form of a pocket 8' wound in a plane spiral. The diameter D 2 of the plane spiral essentially corresponds to the inside diameter D 1 of the helix formed from the line 9, the heating feed and return connections 4, 4 'of the wound pocket 8' being led out of the upper region 1 'of the container 1 and the the lower part 6 'of the expanded combustion chamber 6 is arranged below the part II of the line 9 and has a size diameter D which also essentially corresponds to the inside diameter D 1 of the heating gas coil formed from the line 9. Thus, the heat exchanger 8, which is part of the heating circuit 11 equipped with a pump 12, seen in projection, covers the entire heating gas duct 5, the exhaust gas connection located in the lower region 1 ″ of the container 1 in FIG. 1 being withdrawn from view.

Der untere Teil 6' der erweiterten Brennkammer 6 ist, wie dargestellt, im Querschnitt halbkugelförmig ausgebildet. An diesen ist ein sich nach oben verjüngender Teil 6'' angeschlossen.The lower part 6 'of the expanded combustion chamber 6 is how shown, hemispherical in cross section. There is a tapering part 6 '' on these connected.

Claims (2)

  1. A heat generator for water heating and other heating operations, comprising an essentially cylindrical and vertical container (1) provided with cold and hot water connections (2,3) and with a heating means formed of a heating gas guide (5) equipped with a blowpipe and arranged within the container (1), with the heating gas guide (5) being formed of a section (I) vertically extending into the upper area (1') of the container (1), and a section (II) coupled to section (I) and, in the bottom area (1") of the container (1), led therefrom and having a substantially larger heat exchanger face than section (I) and being formed of a helical line (9), wherein substantially the bottom half (H) of section (I) is formed as a combustion chamber (6) expanded over (9), with the burner (7) being arranged centrally therein in a manner oriented vertically upwardly, characterized in that arranged in the upper area (1') of the container (1), above the two sections (I, II), is a heat exchanger (8) guiding a heat carrier, with the heat exchanger being of a pocket (8')-type configuration wound in the form of a plane spiral, the diameter (D2) of which substantially corresponds to the inner diameter (D1) of the helix formed of the line (9), with the heating forward and return flow connections (4, 4') of the wound pocket (8') being led out ofthe upper area (1') of the container (1) and with the bottom part (6') of the expanded combustion chamber (6) being arranged below section (II) of the line (9) and having a maximum diameter (D) also substantially corresponding to the inner diameter (D1) of the heating gas flue helix formed of line (9).
  2. A heat generator according to claim 1, characterized in that the bottom part (6') of the expanded combustion chamber (6) has a semi-spherical cross-section, and that an upwardly tapering part (6") is connected thereto.
EP94101511A 1993-02-05 1994-02-02 Heat generator for hot-water production and heating Expired - Lifetime EP0609854B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9301606U DE9301606U1 (en) 1993-02-05 1993-02-05 Heat generator for water heating and heating operation
DE9301606U 1993-02-05

Publications (2)

Publication Number Publication Date
EP0609854A1 EP0609854A1 (en) 1994-08-10
EP0609854B1 true EP0609854B1 (en) 1998-10-07

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EP94101511A Expired - Lifetime EP0609854B1 (en) 1993-02-05 1994-02-02 Heat generator for hot-water production and heating
EP94101510A Expired - Lifetime EP0609853B1 (en) 1993-02-05 1994-02-02 Heat generator for hot water production and heating

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EP94101510A Expired - Lifetime EP0609853B1 (en) 1993-02-05 1994-02-02 Heat generator for hot water production and heating

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EP (2) EP0609854B1 (en)
AT (2) ATE172020T1 (en)
DE (3) DE9301606U1 (en)
DK (1) DK0609853T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9410136U1 (en) * 1994-06-23 1994-08-11 Viessmann Werke Gmbh & Co, 35108 Allendorf Small boiler with hot water preparation
SI0699878T1 (en) * 1994-09-01 1999-10-31 Ewfe Brennwert-Heiztechnik Gmbh High efficiency boiler for heating and storing domestic water and heating water
AT410837B (en) * 1999-07-07 2003-08-25 Vaillant Gmbh HOT WATER SYSTEM
DE10110527A1 (en) * 2001-03-05 2002-09-12 Rotex Gmbh Metall Und Kunststo Heating device for combined heating and domestic water heating
AT514857B1 (en) * 2013-08-08 2015-06-15 Vaillant Group Austria Gmbh Primary heat exchanger of a condensing boiler

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH374174A (en) * 1959-01-14 1963-12-31 Eisler Bruno Dipl Ing Dr Techn Device for the simultaneous preparation of hot service water and warm heating water
FR1371488A (en) * 1963-09-27 1964-09-04 Boiler
FR1518844A (en) * 1967-02-13 1968-03-29 Mixed hot water generator
US4271789A (en) * 1971-10-26 1981-06-09 Black Robert B Energy conversion system
IT1181493B (en) * 1984-12-21 1987-09-30 Cem Spa HIGH PERFORMANCE THERMAL GROUP CONSISTING OF A BOILER AND TRANSPARENT BLUE FLAME BURNER
NL8903078A (en) * 1989-12-15 1991-07-01 Daalderop Bv HEAT EXCHANGER FOR A HOSPITAL, AND HOSPITAL EQUIPPED WITH SUCH A HEAT EXCHANGER.
US5076494A (en) * 1989-12-18 1991-12-31 Carrier Corporation Integrated hot water supply and space heating system
US5022352A (en) * 1990-05-31 1991-06-11 Mor-Flo Industries, Inc. Burner for forced draft controlled mixture heating system using a closed combustion chamber
DE9116438U1 (en) * 1991-05-31 1992-10-01 Vießmann, Hans, Dr., 3559 Battenberg Heat generators for hot water preparation and heating

Also Published As

Publication number Publication date
EP0609854A1 (en) 1994-08-10
DE9301606U1 (en) 1994-06-01
EP0609853A1 (en) 1994-08-10
EP0609853B1 (en) 1996-09-25
ATE172020T1 (en) 1998-10-15
DE59400706D1 (en) 1996-10-31
DK0609853T3 (en) 1996-11-11
DE59407026D1 (en) 1998-11-12
ATE143473T1 (en) 1996-10-15

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