EP1746361A1 - Chaudière - Google Patents

Chaudière Download PDF

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Publication number
EP1746361A1
EP1746361A1 EP06013729A EP06013729A EP1746361A1 EP 1746361 A1 EP1746361 A1 EP 1746361A1 EP 06013729 A EP06013729 A EP 06013729A EP 06013729 A EP06013729 A EP 06013729A EP 1746361 A1 EP1746361 A1 EP 1746361A1
Authority
EP
European Patent Office
Prior art keywords
heater according
cover elements
burner
coil ends
heat exchangers
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Withdrawn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
EP06013729A
Other languages
German (de)
English (en)
Inventor
Johannes Otto
Wolfgang Schleiter
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 EP1746361A1 publication Critical patent/EP1746361A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • F24H9/12—Arrangements for connecting heaters to circulation pipes
    • F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines

Definitions

  • the invention relates to a heater according to the preamble of patent claim 1.
  • a heater of the type mentioned is according to the DE 102 11 489 C1 known. This, especially for the higher power range provided device exists (see also the older DE 694 02 051 T1 ) made of two helically coiled heat exchangers, which are screwed into one another and parallel to each other by a Schunikmedmedium can be flowed through and each having two helical ends. Furthermore, this heater comprises a cylindrical combustion chamber which is axially bounded by a front and rear cover member and radially from the heat exchangers, wherein a burner for liquid or gaseous fuels is arranged on one of the two cover elements. In addition, the heater consists of a housing which is formed from a shell part and the cover elements and encloses the heat exchanger to form an exhaust gas passage.
  • the integration of the heat exchanger is carried out in this heater by welding with the end-side boards (cover elements), are pressed into the compensation for the pitch of the helices corresponding recesses.
  • the open flow cross sections of the heat exchangers terminate at the boards.
  • two further boards are required on both sides (front and back), to each of which then a connecting piece for connection to the house-side heating circuit is welded. Further details are explained below with reference to a drawing of this prior art.
  • the boards are relatively expensive, since at least for the respective inner due to corrosion, a high-quality stainless steel must be used.
  • the material waste is quite high, since the approximately round boards are punched out of square stock. In the two burner-side cover elements is still the waste for the burner opening added.
  • the welding of the four coil ends to the sinkers is a relatively complex processing step due to the non-rectilinear welds.
  • the invention has for its object to eliminate the aforementioned disadvantages of the heater of the type mentioned in the simplest possible way, and in particular from the aspect of facilitating the assembly even with the use of two coiled heat exchangers and even more compact and cost-effective form the heater ,
  • the helical ends are arranged in pairs flush with each other, that in each case the coiled coil ends of the two heat exchangers are hydraulically connected to each other and have a common connecting piece and that formed on the two cover elements to the two connecting pieces form-adapted and of these sealed penetrated openings are provided.
  • the invention is in departure from the art after DE 102 11 489 C1 It is to bring the respective coil ends together, to connect them with a common connection piece and to lead this connection piece through the respective cover member therethrough. Thanks to this solution eliminates the above-mentioned second board per Cover element, ie both heat exchanger coils is supplied via a first connecting piece, the heating circuit water; via the second connecting piece, the heating circuit water can leave the two heat exchanger coils again.
  • the parallel flow of the two coils allows due to the improved compared to a single helix heat transfer rate that the heater can be used in particular in the higher power range with a larger burner.
  • the heater illustrated in FIGS. 1 to 9 in principle comprises two helically coiled heat exchangers 1, 2 which are screwed into one another and can be flowed through in parallel by a heating medium medium and which each have two coil ends 101, 102, 201, 202. Further, a cylindrical combustion chamber 3 is always provided, which is axially bounded by a front 4 and rear cover member 5 and radially of the heat exchangers 1, 2, wherein a burner for liquid or gaseous fuels on one of the two cover elements 4, 5 is arranged. Furthermore, the heater comprises a housing 7, which is formed from a shell part 8 and the cover elements 4, 5 and encloses the heat exchanger 1, 2 to form an exhaust gas channel 9.
  • Figure 5 is the after DE 102 11 489 C1 known prior art shown. According to this, it has hitherto been customary to allow the respective coil ends of the two heat exchangers to open out at positions arranged at a distance from one another on the housing 7. Furthermore, as explained at the beginning, it was necessary to produce the two cover elements 4, 5 in each case from two sinkers, namely a first, to which the coil ends are welded, and a second to form a flow space at the front and rear sides of the housing. For more details on the DE 102 11 489 C1 directed.
  • the coil ends 101, 102, 201, 202 are arranged in pairs flush with each other, that each juxtaposed coil ends 101, 102, 201, 202 of the two heat exchangers 1, 2 are hydraulically connected to each other and a have common connection piece 10, 11 and that on the two cover elements 4, 5 to the two connecting pieces 10, 11 form-adapted trained and sealed by these openings through openings 12, 13 are provided.
  • the connecting openings 14, 15 are each formed as a round neck.
  • a circular opening is the easiest, for example by punching to produce and is also fluidically favorable.
  • connection openings 14, 15 are welded together. It is structurally provided according to the embodiments of Figure 2 and 4, that in each case at a connecting opening 14, 15, a flanged edge 16 is provided, which simplifies the welding process.
  • connection piece 10, 11 In order to fasten the connection piece 10, 11 in the simplest possible way to the coil ends 101, 202, a connection opening 17 (see in particular Figures 1 to 4) is provided at each outer coil end, of course, preferably the cross-section of the connecting piece 10, 11 corresponds to this easy to attach there, for example, by welding.
  • the connecting pieces 10, 11 are oriented in an oriented manner parallel to the screw axis of the heat exchangers 1, 2. This requirement ensures that the cover elements 4, 5 are also simply inserted in the axial direction in the casing part 8 of the housing 7 of the heater. The cover elements 4, 5 themselves are in this way positively sealed with the shell part 8 connectable.
  • the two cover elements 4, 5 produced by casting, preferably formed of aluminum die casting.
  • the circular openings 12, 13 on the cover element 4, 5 have a diameter which is slightly larger than the outer diameter of the tubular connecting piece 10, 11 is formed.
  • the proviso "slightly larger" takes into account that between the connecting piece 10, 11 and the cover member 4, 5 each have a seal, preferably a lip seal is provided (see also the correspondingly shaped grooves on the connecting piece 10, 11 in FIG 1).
  • At least one of the cover elements 4, 5 has, on the heat exchanger side, a surface shape adapted to the spiral pitch.
  • an opening 18 is provided on the burner-side cover element for the burner, in which the mounted on a burner burner plate correspondingly large burner can be used.
  • heat exchangers 1, 2 it is provided that they have an approximately rectangular flow cross-section in a manner known per se on the cooling water side, between the resulting coils of the heat exchanger 1, 2 exhaust gas flow column 19 are provided (see Figure 1 to 5).
  • both the heat exchanger 1, 2 and the connecting pieces 10, 11 are formed from stainless steel.
  • conformal formed cover 6 In order to seal the heat exchangers 1, 2 in the axial direction at their respective ends, as shown in Figure 6, according to conformal formed cover 6 are provided, which are welded to the ends of the heat exchanger 1, 2.
  • a (noble) metallic shell part 8 has circumferential edges 21, which are crimped after mounting the cover elements 4, 5. This allows a particularly simple fixation of the cover element 4, 5 on the shell part 8. At this a further standing with the exhaust duct 9 in connection exhaust outlet 20 is arranged.
  • the shell part 8 can finally be made according to Figure 9 even made of plastic.

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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
EP06013729A 2005-07-20 2006-07-03 Chaudière Withdrawn EP1746361A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202005011633U DE202005011633U1 (de) 2005-07-20 2005-07-20 Heizgerät

Publications (1)

Publication Number Publication Date
EP1746361A1 true EP1746361A1 (fr) 2007-01-24

Family

ID=37401034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06013729A Withdrawn EP1746361A1 (fr) 2005-07-20 2006-07-03 Chaudière

Country Status (2)

Country Link
EP (1) EP1746361A1 (fr)
DE (1) DE202005011633U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100044011A1 (en) * 2006-02-03 2010-02-25 Viessmann Werke Gmbh & Co., Kg Heating device
NL2004147C2 (en) * 2010-01-26 2011-07-27 Daalderop Bv Heat exchanger.
US20140352286A1 (en) * 2011-12-22 2014-12-04 Futaba Industrial Co., Ltd. Exhaust gas heat recovery device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2913105B1 (fr) 2007-02-28 2009-05-08 Mer Joseph Le "echangeur de chaleur a condensation comprenant deux faisceaux primaires et un faisceau secondaire"
DE102008012126A1 (de) 2008-03-01 2009-09-10 Robert Bosch Gmbh Heizgerät
DE102008014523A1 (de) 2008-03-15 2009-09-17 Robert Bosch Gmbh Heizgerät
DE102008038041A1 (de) 2008-08-16 2010-02-25 Robert Bosch Gmbh Wärmetauscher für ein Heizgerät
DE102008039403A1 (de) 2008-08-22 2010-02-25 Robert Bosch Gmbh Heizgerät
DE202008011266U1 (de) 2008-08-23 2009-12-24 Robert Bosch Gmbh Heizgerät
DE102009032121A1 (de) 2009-07-08 2011-01-13 Robert Bosch Gmbh Brennwertkessel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69402051T2 (de) 1993-01-15 1997-10-09 Mer Joseph Le Wärmetauschelement, verfahren und vorrichtung zu dessen herstellung
DE10211489C1 (de) 2002-03-15 2003-06-26 Viessmann Werke Kg Kompaktheizkessel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3815647A1 (de) * 1987-06-05 1988-12-22 Sueddeutsche Kuehler Behr Rundwaermetauscher, insbesondere fuer kaeltemittel von klimaanlagen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69402051T2 (de) 1993-01-15 1997-10-09 Mer Joseph Le Wärmetauschelement, verfahren und vorrichtung zu dessen herstellung
DE10211489C1 (de) 2002-03-15 2003-06-26 Viessmann Werke Kg Kompaktheizkessel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100044011A1 (en) * 2006-02-03 2010-02-25 Viessmann Werke Gmbh & Co., Kg Heating device
NL2004147C2 (en) * 2010-01-26 2011-07-27 Daalderop Bv Heat exchanger.
EP2354703A3 (fr) * 2010-01-26 2013-08-21 Daalderop B.V. Échangeur de chaleur
US20140352286A1 (en) * 2011-12-22 2014-12-04 Futaba Industrial Co., Ltd. Exhaust gas heat recovery device
US9261005B2 (en) * 2011-12-22 2016-02-16 Futaba Industrial Co., Ltd. Exhaust gas heat recovery device

Also Published As

Publication number Publication date
DE202005011633U1 (de) 2006-11-30

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