DE102004032180A1 - Heat exchanger for gas or oil heated water heater has heat conducting ribs fitted in space between inner and outer tubes in such way that uniform distribution of heat can be established on circumference of outer tube - Google Patents
Heat exchanger for gas or oil heated water heater has heat conducting ribs fitted in space between inner and outer tubes in such way that uniform distribution of heat can be established on circumference of outer tube Download PDFInfo
- Publication number
- DE102004032180A1 DE102004032180A1 DE200410032180 DE102004032180A DE102004032180A1 DE 102004032180 A1 DE102004032180 A1 DE 102004032180A1 DE 200410032180 DE200410032180 DE 200410032180 DE 102004032180 A DE102004032180 A DE 102004032180A DE 102004032180 A1 DE102004032180 A1 DE 102004032180A1
- Authority
- DE
- Germany
- Prior art keywords
- heat
- tube
- outer tube
- heat exchanger
- inner tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/14—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by endowing the walls of conduits with zones of different degrees of conduction of heat
-
- 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
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/003—Multiple wall conduits, e.g. for leak detection
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Die Erfindung betrifft einen Wärmeübertrager, insbesondere für gas- oder ölbeheizte Wassererhitzer, nach dem Oberbegriff des Anspruchs 1.The Invention relates to a heat exchanger, especially for Gas- or oil-heated Water heater, according to the preamble of claim 1.
Wärmeübertrager zur Übertragung der Wärme des von einem Gas- oder Ölbrenner erzeugten Heizgas auf das Heizwasser einer Heizungs- und/oder Brauchwasseranlage sind beispielsweise als Lamellenrohrbündel-Wärmeübertrager oder Glattrohrbündel-Wärmeübertrager ausgeführt. In sogenannten Brennwertheizgeräten, bei denen die Kondensationswärme des Heizgases ausgenutzt wird, erfolgt die Abkühlung des Heizgases unter die Taupunk-Temperatur des Heizgases- bzw. des Abgasgemischs, so dass der Wasserdampf auskondensiert. Bei der Verbrennung von Erdgas oder Öl befindet sich Schwefel im Abgas, so dass sich bei der Kondensation Schwefelsäure bildet. Die Säure im Kondensat führt in den Bereichen des Wärmeübertragers, in denen das Abgas auskondensiert, zu einer Korrosion des Wärmeübertragermaterials.Heat exchanger for transmission the heat that of a gas or oil burner produced heating gas to the heating water of a heating and / or service water system For example, are designed as a laminated tube bundle heat exchanger or smooth tube bundle heat exchanger. In so-called condensing boilers, where the heat of condensation of the heating gas is used, the cooling of the fuel gas is below the dew point temperature of the fuel gas or the exhaust gas mixture, so that the water vapor condenses out. When burning natural gas or oil, sulfur is in the Exhaust, so that forms during the condensation sulfuric acid. The acid in the condensate leads in the areas of the heat exchanger, in which the exhaust condenses, to a corrosion of the heat transfer material.
Aus
Aufgabe der Erfindung ist es, eine gezielte Anhebung der Oberflächentemperatur des Wärmeübertragers über die Taupunkt-Temperatur des Heizgases bzw. Abgases zu ermöglichen, um dadurch die Korrosion an diesem Bereich des Wärmeübertragers weitgehend zu vermeiden.task The invention is a targeted increase in the surface temperature of the heat exchanger over the Allow dew-point temperature of the fuel gas or exhaust gas, thereby largely avoid corrosion on this area of the heat exchanger.
Vorteile der ErfindungAdvantages of invention
Die Aufgabe der Erfindung wird mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst, indem eine weitgehend homogene Temperaturverteilung mit Temperaturen größer der Taupunkttemperatur über dem Rohrumfang des Wärmetauscherrohrs eingestellt wird. Damit wird eine Kondensation des Abgases und eine Korrosion des Materials des Wärmeübertragers in diesem Bereich weitgehend vermieden. Durch die gezielte Anhebung der Oberflächentemperatur kann gegenüber der Anhebung der Oberflächentemperatur mit Lamellen bei einer Ausführung des Wärmeübertragers mit Glattrohrbündeln ein kompakter Aufbau erreicht werden. Außerdem ist durch die Vermeidung der Kondensation der Einsatz von kostengünstigeren metallischen Werkstoffen möglich. Durch die Korrosionsfreiheit in bestimmten Bereichen des Wärmeübertragers wird schließlich dessen Qualität verbessert und die Betriebssicherheit des Heizgerätes erhöht. Ein Ausfall des Brennwertheizgerätes durch Zusetzen des Wärmeübertragers durch Korrosionsprodukte wird dadurch ebenfalls vermieden.The The object of the invention is with the characterizing features of Claim 1 solved, by a largely homogeneous temperature distribution with temperatures bigger the Dew point temperature over the pipe circumference of the heat exchanger tube is set. This is a condensation of the exhaust gas and a Corrosion of the material of the heat exchanger largely avoided in this area. By targeted increase the surface temperature can be opposite raising the surface temperature with lamellae in one version of the heat exchanger with smooth tube bundles a compact construction can be achieved. Besides, by avoiding the condensation of the use of less expensive metallic materials possible. Due to the absence of corrosion in certain areas of the heat exchanger finally becomes its quality improves and increases the reliability of the heater. One Failure of the condensing boiler by adding the heat exchanger By corrosion products is also avoided.
Vorteilhafte Weiterbildungen der Erfindung sind durch die Maßnahmen der Unteransprüche möglich.advantageous Further developments of the invention are possible by the measures of the subclaims.
Alternativ können die Innenrohre und die Außenrohre koaxial oder exzentrisch zueinander angeordnet ein. Bei einer zweckmäßigen Ausführungsform sind im Zwischenraum zwischen dem Innenrohr und dem Außenrohr Wärmeleitstege angeordnet, so dass entlang des Außenumfangs des Außenrohres ein unterschiedlicher Wärmeeintrag vom Außenrohr zum Innenrohr realisierbar ist. Bei einer weiteren zweckmäßigen Ausführungsform mit exzentrischer Anordnung des Innenrohres wird mit Hilfe eines Füllmediums zwischen Innenrohr und Außenrohr über den Umfang des Außenrohres ein im Wesentlichen gleichmäßiger Wärmeeintrag vom Außenrohr zum Innenrohr realisiert.alternative can the inner tubes and the outer tubes arranged coaxially or eccentrically to one another. In an expedient embodiment are in the space between the inner tube and the outer tube thermally conductive arranged so that along the outer periphery of the outer tube a different heat input from the outer tube to Inner tube is feasible. In a further advantageous embodiment with eccentric arrangement of the inner tube is using a filling medium between inner tube and outer tube over the Circumference of the outer tube a substantially uniform heat input from the outer tube realized to the inner tube.
Zeichnungdrawing
Ausführungsbeispiele des Standes der Technik und der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert.embodiments The prior art and the invention are shown in the drawing shown and explained in more detail in the following description.
Es zeigenIt demonstrate
Ausführungsbeispieleembodiments
In
Am
Glattrohr
Bezüglich
Aus
Der
größte Wärmeeintrag
an einem Wärmetauscherrohr
ist am Staupunkt der Abgasströmung, der
in
Ein
weiteres Ausführungsbeispiel
mit zwei Ausführungsformen
geht aus
Durch
eine entsprechende Anordnung des Innenrohres
Bei
der Ausführungsform
gemäß
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410032180 DE102004032180A1 (en) | 2004-07-02 | 2004-07-02 | Heat exchanger for gas or oil heated water heater has heat conducting ribs fitted in space between inner and outer tubes in such way that uniform distribution of heat can be established on circumference of outer tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410032180 DE102004032180A1 (en) | 2004-07-02 | 2004-07-02 | Heat exchanger for gas or oil heated water heater has heat conducting ribs fitted in space between inner and outer tubes in such way that uniform distribution of heat can be established on circumference of outer tube |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004032180A1 true DE102004032180A1 (en) | 2005-12-08 |
Family
ID=35336166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410032180 Ceased DE102004032180A1 (en) | 2004-07-02 | 2004-07-02 | Heat exchanger for gas or oil heated water heater has heat conducting ribs fitted in space between inner and outer tubes in such way that uniform distribution of heat can be established on circumference of outer tube |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004032180A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2113731A1 (en) * | 2008-04-30 | 2009-11-04 | ABB Research LTD | Heat exchanger device |
US20220196342A1 (en) * | 2019-04-15 | 2022-06-23 | Uhrig Energie Gmbh | Heat exchanger module, heat exchanger system and method for producing the heat exchanger system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7834482U1 (en) * | 1978-11-20 | 1979-03-29 | Walde, Richard Stewart, Springfield Orchard, Ongar, Essex (Grossbritannien) | PIPE FOR USE IN SOLAR HEATING EQUIPMENT |
DE2952142A1 (en) * | 1979-12-22 | 1981-06-25 | August Brötje GmbH & Co, 2902 Rastede | Heat-transfer medium direction component - comprises two hollow profiled sections one inside other and in contact |
DE3300929A1 (en) * | 1983-01-13 | 1984-07-19 | Ulf Dipl.-Ing. Dr. 3404 Adelebsen Bossel | Heat exchanger for a condensing or evaporating medium and a medium without phase transition |
-
2004
- 2004-07-02 DE DE200410032180 patent/DE102004032180A1/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7834482U1 (en) * | 1978-11-20 | 1979-03-29 | Walde, Richard Stewart, Springfield Orchard, Ongar, Essex (Grossbritannien) | PIPE FOR USE IN SOLAR HEATING EQUIPMENT |
DE2952142A1 (en) * | 1979-12-22 | 1981-06-25 | August Brötje GmbH & Co, 2902 Rastede | Heat-transfer medium direction component - comprises two hollow profiled sections one inside other and in contact |
DE3300929A1 (en) * | 1983-01-13 | 1984-07-19 | Ulf Dipl.-Ing. Dr. 3404 Adelebsen Bossel | Heat exchanger for a condensing or evaporating medium and a medium without phase transition |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2113731A1 (en) * | 2008-04-30 | 2009-11-04 | ABB Research LTD | Heat exchanger device |
WO2009133032A2 (en) * | 2008-04-30 | 2009-11-05 | Abb Research Ltd | Heat exchanger device |
WO2009133032A3 (en) * | 2008-04-30 | 2010-04-08 | Abb Research Ltd | Heat exchanger device |
US20220196342A1 (en) * | 2019-04-15 | 2022-06-23 | Uhrig Energie Gmbh | Heat exchanger module, heat exchanger system and method for producing the heat exchanger system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |