EP1314947A2 - Echangeur de chaleur, en particulier pour installation de chauffage - Google Patents

Echangeur de chaleur, en particulier pour installation de chauffage Download PDF

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Publication number
EP1314947A2
EP1314947A2 EP02025786A EP02025786A EP1314947A2 EP 1314947 A2 EP1314947 A2 EP 1314947A2 EP 02025786 A EP02025786 A EP 02025786A EP 02025786 A EP02025786 A EP 02025786A EP 1314947 A2 EP1314947 A2 EP 1314947A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
different
exchanger according
hose
pipeline
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.)
Granted
Application number
EP02025786A
Other languages
German (de)
English (en)
Other versions
EP1314947A3 (fr
EP1314947B1 (fr
Inventor
Matthias Gehring
Bernd Dr. Michelfelder
Bernd Seeger
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.)
Witzenmann GmbH
Original Assignee
Witzenmann GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Witzenmann GmbH filed Critical Witzenmann GmbH
Publication of EP1314947A2 publication Critical patent/EP1314947A2/fr
Publication of EP1314947A3 publication Critical patent/EP1314947A3/fr
Application granted granted Critical
Publication of EP1314947B1 publication Critical patent/EP1314947B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • 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
    • F28F1/006—Tubular elements; Assemblies of tubular elements with variable shape, e.g. with modified tube ends, with different geometrical features
    • 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
    • F28F1/08—Tubular elements crimped or corrugated in longitudinal section

Definitions

  • the invention relates to a heat exchanger, in particular for heating systems, consisting of a particular cylindrical housing and one in the Housing pipeline laid, the pipeline from a corrugated hose is constructed.
  • cast aluminum housings are used for use in heating systems Heat exchanger application that has an integrated burner area
  • Heat exchanger application that has an integrated burner area
  • Newer designs of exhaust gas heat exchangers consist of a cylindrical housing with a vertically arranged smooth tube or corrugated hose coil. At the top With this design, the area of the housing is the burner within the Corrugated hose coil arranged, the exhaust gas flowing from top to bottom and the flame of the burner directed sideways and downwards accordingly are.
  • the medium to be heated flows, i.e. the water inside the corrugated hose coil from bottom to top.
  • the warming of the Water takes place in such a way that in the upper area by forced convection and radiation heat is transferred from the exhaust gas to the water and that in the lower area forced convection and condensation for heat transfer to lead.
  • the condensate from the condensation runs out at the bottom the heat exchanger housing.
  • the present invention is based on the object Heat exchanger of the type mentioned with improved performance properties such as exchanger performance, susceptibility to failure etc.
  • the hose corrugation in the upper, overheating-critical hot area quasi slightly approach a smooth tube coil, which leads to the desired favorable flow conditions and thus to avoid local overheating leads in this area.
  • the wide corrugation avoids in the Wavy valleys the appearance of secondary vortices that heat transfer would hinder.
  • a wide corrugation increases the diameter the detached vertebrae on the principle of the Kärmänschen vortex street and thus also contributes to the improvement of heat transfer.
  • the line section provided in the lower condensation area with narrower hose corrugation, shorter wavelength and in particular steeper Wave flanks in turn have the desired maximum surface area, that in a preferred application is 2.5 times higher than one comparable smooth tube.
  • the vortex or flow conditions mentioned above are in the condensation area due to the lower prevailing there Temperatures are not critical.
  • the pipeline is designed as a helix and is thus helical in the heat exchanger housing laid.
  • the hose and / or shaft geometries can be used for optimization the respective heat transfer properties, in particular the following Parameters vary: corrugated hose diameter, hose geometries such as wall thickness or or wave geometry such as wavelength and wave height. About that the material can also be adjusted.
  • the present invention can not only be use in the example heat exchangers for heating systems, but also with any other heat exchangers, the areas with different conditions such as temperatures, heat radiation, etc.
  • the line points according to the invention at least two line sections with different hose and / or Shaft geometries, namely preferably with a line section further hose corrugation and longer wavelength, in particular with flatter ones Wave flanks and a section with narrower tube corrugation of smaller wavelength and with steeper wave flanks.
  • the wide hose corrugation with flat Shaft flanks are provided in a similar way to a smooth tube coil, in heat exchanger areas to be laid at high temperatures because of the wide corrugation ensures that no gas bubbles settle on the inside wall of the pipe can, which would impair the heat dissipation.
  • the line section with narrower hose corrugation is suitable for such areas, the largest possible surface to optimize the heat exchanger surface have without it in the narrowly corrugated areas of the troughs or wave peaks come to critical flow or temperature influences.
  • the two differently designed line sections can - depending on Use case - seamlessly merge or one - possibly also with a different geometry - Transition area to be connected.
  • the heat exchanger 1 according to the invention shown in Figure 1 consists of a cylindrical housing 2 with vertical housing axis. Is in the housing a corrugated hose coil 3 also arranged with a vertical coil axis, the corrugated hose is laid so that the spiral diameter is as possible turns out large, i.e. the corrugated hose is laid along the inside of the housing is.
  • the corrugated hose coil 3 has one arranged in the housing base 4 vertically oriented inlet 5 and one below the housing cover 6 arranged and extending in the horizontal direction outlet 7. Accordingly, the medium to be heated flows - that is, in the present case Water to be heated - from bottom to top through the heat exchanger.
  • the medium to be heated flows from the colder lower region of the Heat exchanger in the hotter upper area.
  • the burner 8 is designed that it starts from the housing cover 6 in the vertical direction downwards protrudes into the heat exchanger and the flames in particular in the horizontal direction directed radially outwards on the corrugated hose coil 3, so that in this at the level of the burner so-called hot area A des Heat exchangers heat by forced convection and by radiation on the corrugated hose and thus the medium flowing through the corrugated hose is transmitted.
  • the corrugated hose is exposed to the hot air or hot exhaust gas, which the heat exchanger on the bottom by a arranged in the bottom Exhaust gas outlet 9 leaves, acted on, so that the heat is forced by Convection and condensation is transmitted.
  • the Corrugated hose coil 3 In the lower condensation area B of the heat exchanger 1 is within the Corrugated hose coil 3 arranged a cylindrical displacement body 11, which blocks the interior within the coil 3 and thus the gas flow over the outside of the housing and past the corrugated hose coil 3 directed. This is how the heat exchange between the heating gas is as efficient as possible and the heating water to be heated.
  • this displacement body 11 Serves at the same time this displacement body 11, the corrugated hose coil 3 on the housing wall leaving an annular gap, this annular gap as far as possible between the housing wall and the displacement body of the corrugated hose is filled in with its outer brim, i.e. the wave crests rests on the displacer and the housing wall, while the area Between two wave crests there is space for the hot exhaust gas to flow through leaves.
  • Figure 2 shows a short section of the Corrugated hose coil in a representation developed in the plane: there is to recognize the wide corrugated line section 3a, which is assigned to the hot region A. is, while the narrowly corrugated portion 3b is the condensation area B is assigned.
  • both sections go in one piece and seamlessly into each other, i.e. the continuous corrugated hose is provided with different curls.
  • the present invention offers the advantage of a heat exchanger, which is built up in the usual way, but which is simple replacement of the line component is optimized such that the Pipe component to the respective conditions in the individual heat exchanger sections adapted and accordingly with a different hose and / or Shaft geometry is provided.
  • This can advantageously be used to increase the size of the same size Achieve performance of the heat exchanger or with the same exchanger performance get along with smaller dimensions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP20020025786 2001-11-22 2002-11-16 Echangeur de chaleur, en particulier pour installation de chauffage Expired - Lifetime EP1314947B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10157267 2001-11-22
DE2001157267 DE10157267A1 (de) 2001-11-22 2001-11-22 Wärmetauscher, insbesondere für Heizungsanlagen

Publications (3)

Publication Number Publication Date
EP1314947A2 true EP1314947A2 (fr) 2003-05-28
EP1314947A3 EP1314947A3 (fr) 2004-12-15
EP1314947B1 EP1314947B1 (fr) 2006-04-26

Family

ID=7706551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020025786 Expired - Lifetime EP1314947B1 (fr) 2001-11-22 2002-11-16 Echangeur de chaleur, en particulier pour installation de chauffage

Country Status (2)

Country Link
EP (1) EP1314947B1 (fr)
DE (2) DE10157267A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6789615B2 (en) * 2002-02-28 2004-09-14 Witzenmann Gmbh Heat exchanger, in particular for swimming pools
WO2007014617A1 (fr) * 2005-07-29 2007-02-08 Linde Aktiengesellschaft Echangeur de chaleur enroule comportant differents materiaux
WO2015160498A3 (fr) * 2014-04-15 2016-03-24 Ecr International, Inc. Échangeur de chaleur
WO2022029353A1 (fr) * 2020-08-07 2022-02-10 Hydronik Soluciones Tecnicas Sl Cumulus instantané de liquides pour la consommation humaine et/ou pour des liquides alimentaires

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10306699A1 (de) * 2003-02-18 2004-09-02 Robert Bosch Gmbh Wärmetauscher mit einem strömungsoptimierten wärmeaufnehmenden Strömungskanal, insbesondere für ein Heizgerät
RU193295U1 (ru) * 2019-06-20 2019-10-22 Ришат Сафуанович Шаймухаметов Котел водогрейный
EP4726310A1 (fr) * 2024-10-08 2026-04-15 Metro Therm A/S Echangeur de chaleur et procédé de fabrication de l'échangeur de chaleur

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB684602A (en) * 1948-08-04 1952-12-24 Giovanni Rossi Improvements in tubular heat exchanger elements, particularly for steam boilers
NL8403236A (nl) * 1984-10-24 1986-05-16 Henk Durieux Verwarmingsketel voor een centrale verwarmingsinstallatie.
DE4110264A1 (de) * 1990-06-28 1992-01-02 Witzenmann Metallschlauchfab Waermetauscher, insbesondere kraftstoffkuehler fuer eine verbrennungskraftmaschine
US5131351A (en) * 1991-08-05 1992-07-21 Farina Alfred J Heat exchanger plug
US5782208A (en) * 1994-06-15 1998-07-21 Glowcore Acquisition Company Water boiler with metal core
US5572885A (en) * 1995-06-06 1996-11-12 Erickson; Donald C. Shrouded coiled crested tube diabatic mass exchanger
DE19529559A1 (de) * 1995-08-11 1997-02-13 Wieland Werke Ag Wärmeaustauschsystem zur Wassererwärmung
AT409546B (de) * 1998-12-17 2002-09-25 Vaillant Gmbh Wasserheizgerät
DE20100116U1 (de) * 2001-01-05 2001-03-22 hde Metallwerk GmbH, 58706 Menden Wärmetauscherrohr für flüssige oder gasförmige Medien

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6789615B2 (en) * 2002-02-28 2004-09-14 Witzenmann Gmbh Heat exchanger, in particular for swimming pools
WO2007014617A1 (fr) * 2005-07-29 2007-02-08 Linde Aktiengesellschaft Echangeur de chaleur enroule comportant differents materiaux
CN101233379B (zh) * 2005-07-29 2010-09-01 林德股份公司 具有不同材料的缠绕式换热器
US8297074B2 (en) 2005-07-29 2012-10-30 Linde Aktiengesellschaft Coiled heat exchanger having different materials
WO2015160498A3 (fr) * 2014-04-15 2016-03-24 Ecr International, Inc. Échangeur de chaleur
US10012413B2 (en) 2014-04-15 2018-07-03 Ecr International, Inc. Heat exchanger
WO2022029353A1 (fr) * 2020-08-07 2022-02-10 Hydronik Soluciones Tecnicas Sl Cumulus instantané de liquides pour la consommation humaine et/ou pour des liquides alimentaires
ES2894175A1 (es) * 2020-08-07 2022-02-11 Hydronik Soluciones Tecn Sl Interacumulador instantaneo de fluidos para consumo humano y/o fluidos alimenticios

Also Published As

Publication number Publication date
DE50206542D1 (de) 2006-06-01
DE10157267A1 (de) 2003-06-12
EP1314947A3 (fr) 2004-12-15
EP1314947B1 (fr) 2006-04-26

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