EP2128537A2 - Echangeur thermique - Google Patents

Echangeur thermique Download PDF

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Publication number
EP2128537A2
EP2128537A2 EP09006653A EP09006653A EP2128537A2 EP 2128537 A2 EP2128537 A2 EP 2128537A2 EP 09006653 A EP09006653 A EP 09006653A EP 09006653 A EP09006653 A EP 09006653A EP 2128537 A2 EP2128537 A2 EP 2128537A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
section
channels
cross
collectors
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.)
Withdrawn
Application number
EP09006653A
Other languages
German (de)
English (en)
Other versions
EP2128537A3 (fr
Inventor
Werner Dr. Klausmann
Roger DÖNGES
Gunthard Görge
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
Original Assignee
Viessmann Werke GmbH and Co KG
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 Viessmann Werke GmbH and Co KG filed Critical Viessmann Werke GmbH and Co KG
Publication of EP2128537A2 publication Critical patent/EP2128537A2/fr
Publication of EP2128537A3 publication Critical patent/EP2128537A3/fr
Withdrawn legal-status Critical Current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
    • F24H1/403—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes the water tubes being arranged in one or more circles around the burner
    • 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
    • F28D7/16—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 arranged in parallel spaced relation
    • F28D7/163—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 arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
    • F28D7/1638—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 arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing with particular pattern of flow or the heat exchange medium flowing inside the conduits assemblies, e.g. change of flow direction from one conduit assembly to another one

Definitions

  • the invention relates to a heat exchanger according to the preamble of patent claim 1.
  • a heat exchanger of the type mentioned is according to the DE 31 05 598 A1 known. This consists of a first and a second so-called collector for a first fluid medium supplied and discharged through return and flow connections. Between the two collectors through the first fluid medium can be flowed through, an elongated cross-section having connecting channels are provided, which communicate with the collectors via flow openings. Between each two connecting channels is thereby a fürströmspalt for a second fluid medium.
  • each adjacent connecting channels which must be used with their slot-like cross-section in the corresponding perforated connecting walls of the collector fluid-tight and connected, are alternately flowed through in countercurrent (which is not of interest here).
  • the invention has the object of reshaping and improving a heat exchanger of the type mentioned in that, while maintaining appropriate heat exchange function, the manufacturability of such a heat exchanger is much easier or less expensive.
  • each flow-through opening has a cross-section which is dimensioned smaller than the slot-like cross-section of a connecting channel.
  • the connecting channels for their fluid-tight connection to the collector walls in these need not correspond to the connecting channel cross section corresponding cross-sectional fitting or fitting openings in the collector walls, but correspondingly smaller, which advantageously leads to significantly more space for the fluid-tight integration the connection channels is available in the respective collector walls, in spite of maintaining the relatively narrow fürströmspalte for the second flow medium between the parallel to each other from collector to collector extending connecting channels.
  • the solution according to the invention advantageously has only a very low flow resistance (water-side pressure loss) with respect to the first fluid medium (heating circuit water).
  • the connecting channels preferably define a cylinder jacket surface (more generally: a curved plane), but a solution is equally well conceivable in which the connecting channels are arranged in a plane next to one another (flat heat exchanger, in which the collectors, so to speak form the cross connection between the connection channels).
  • FIGS. 1 . 2 illustrate, in a known manner, a first and a second collector 1, 2 for a first fluid medium (heat transfer medium, typically water), wherein between the collectors 1, 2 from the first fluid medium through-flow, a slot-like (especially non-circular or non-circular ) Having cross-section connecting channels 3 are provided.
  • a first fluid medium heat transfer medium, typically water
  • connection channels 3 which may be formed for example of aluminum, steel or stainless steel, are connected to the collectors 1, 2 via flow openings 4 in hydraulic communication, between each two connecting channels 3, a modifiable fluid medium (hot gases) is present ,
  • the fürströmspal 5 has typically seen in the main flow direction of the second medium over a certain path length to a constant width.
  • FIG. 5 For such a heat exchanger is now with reference to FIG. 5 essential that the flow-through 4, that is, the inlet and outlet of each connection channel from the one collector 1 and in the other collector 2 have a cross-section which is smaller than the slot-like cross-section of a connecting channel 3.
  • FIG. 5 only two connection channels 3 from the whole variety of such channels are shown, with reference to the FIGS. 1 . 2 define a here cylindrical combustion chamber 17, from which the hot gases as a second fluid medium through the columns 5 flow radially outward.
  • the flow openings 4 are according to FIG. 4 preferably in the form of connecting pieces 18, which are arranged on the cross-section of the respective connecting channel 3 (preferably) at both ends corresponding cross-section Abdeckelept 6 of the connecting channels 3.
  • the both upstream and downstream are identically designed connecting pieces 18 are preferably and expedient, cylindrical, although this is not mandatory, that is, these can also, as dash-dotted lines in FIG. 5 indicated, for example, have slot shape, which from flow-through 4 to 4 through-flow even greater lateral distance can be achieved. especially the FIG.
  • the through-flow openings 4 represented by the connecting pieces 18, seen in the longitudinal extension of the connecting channels 3, can be arranged offset relative to one another at the opposite respective ends of each connecting channel 3, as shown in FIG FIG. 6 is clarified.
  • the flow openings 4 and the connecting pieces 18 standing circles are, for example, at the upper ends of the connecting channels 3 and the dashed lines shown at the lower ends.
  • this solution has the advantage that all the connection channels used 3 can be identical (identical) (they are installed alternately rotated).
  • the connecting piece 18 in the collector 1, 2 are provided with inexpensivehalsten walls 7, wherein in the Aushalsungen 8, the connecting pieces 18 of the connecting channels 3 as a fluid-tight connector (possibly provided with an O-ring seal) are inserted.
  • the connectors are brazed or welded at their flush edges, as shown.

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)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP09006653.1A 2008-05-30 2009-05-18 Echangeur thermique Withdrawn EP2128537A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810026074 DE102008026074B3 (de) 2008-05-30 2008-05-30 Wärmetauscher

Publications (2)

Publication Number Publication Date
EP2128537A2 true EP2128537A2 (fr) 2009-12-02
EP2128537A3 EP2128537A3 (fr) 2013-09-25

Family

ID=40561052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09006653.1A Withdrawn EP2128537A3 (fr) 2008-05-30 2009-05-18 Echangeur thermique

Country Status (2)

Country Link
EP (1) EP2128537A3 (fr)
DE (1) DE102008026074B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2072938A2 (fr) * 2007-06-13 2009-06-24 A.M. S.R.L. Échangeur de chaleur pour une chaudière, procédé et outil correspondant pour sa fabrication

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3105598A1 (de) 1980-02-22 1982-02-18 Saunier Duval Eau Chaude Chauffage - S.D.E.C.C., 93107 Montreuil-sous-Bois Eine verpuffungssperre bildender waermetauscher fuer zentralheizungskessel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0684188U (ja) * 1993-04-26 1994-12-02 サンデン株式会社 熱交換器
DE19911334A1 (de) * 1999-03-15 2000-09-21 Behr Gmbh & Co Sammelrohr für einen Wärmeübertrager und Herstellungsverfahren hierfür
FR2812718A1 (fr) * 2000-08-04 2002-02-08 Ciat Sa Tube d'echange thermique et echangeur de chaleur intratubulaire muni de tels tubes
US7428883B2 (en) * 2004-05-11 2008-09-30 Noritz Corporation Heat exchanger and water heater

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3105598A1 (de) 1980-02-22 1982-02-18 Saunier Duval Eau Chaude Chauffage - S.D.E.C.C., 93107 Montreuil-sous-Bois Eine verpuffungssperre bildender waermetauscher fuer zentralheizungskessel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2072938A2 (fr) * 2007-06-13 2009-06-24 A.M. S.R.L. Échangeur de chaleur pour une chaudière, procédé et outil correspondant pour sa fabrication
EP2072938A3 (fr) * 2007-06-13 2011-03-23 A.M. S.R.L. Échangeur de chaleur pour une chaudière, procédé et outil correspondant pour sa fabrication

Also Published As

Publication number Publication date
DE102008026074B3 (de) 2009-05-20
EP2128537A3 (fr) 2013-09-25

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