EP1624270A1 - Cellule thermique d'un appareil de chauffage - Google Patents

Cellule thermique d'un appareil de chauffage Download PDF

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Publication number
EP1624270A1
EP1624270A1 EP20050015400 EP05015400A EP1624270A1 EP 1624270 A1 EP1624270 A1 EP 1624270A1 EP 20050015400 EP20050015400 EP 20050015400 EP 05015400 A EP05015400 A EP 05015400A EP 1624270 A1 EP1624270 A1 EP 1624270A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
burner
plates
primary heat
exhaust gas
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
EP20050015400
Other languages
German (de)
English (en)
Other versions
EP1624270B1 (fr
Inventor
Walter Bornscheuer
Michael Bremicker
Frank Söhnchen
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.)
Vaillant GmbH
Original Assignee
Vaillant 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 Vaillant GmbH filed Critical Vaillant GmbH
Publication of EP1624270A1 publication Critical patent/EP1624270A1/fr
Application granted granted Critical
Publication of EP1624270B1 publication Critical patent/EP1624270B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • 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
    • F24H1/30—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 being built up from sections
    • F24H1/32—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 being built up from sections with vertical sections arranged side by side
    • 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
    • F24H1/38—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water contained in separate elements, e.g. radiator-type element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/10—Particular pattern of flow of the heat exchange media
    • F28F2250/102—Particular pattern of flow of the heat exchange media with change of flow direction

Definitions

  • the invention relates to a heat cell for a heater with a powered by a fuel-air mixture burner and a primary heat exchanger for transmitting thermal energy of the exhaust gas of the burner to heating or service water.
  • the primary heat exchanger often consists of a coiled tubing.
  • a flattened tube is bent into a helix, wherein the tube has indentations, which serve as spacers to maintain a defined gap.
  • the invention has for its object to provide a heat cell whose primary heat exchanger is characterized by simple structure.
  • the spacers are embossed part of the plates.
  • the gap tapers in the flow direction, primarily to cope with the cooling of the exhaust gas. This is shown in FIG.
  • the combustion chamber is formed by the heat exchanger and the burner.
  • FIG. 1 shows a heat cell 1 with a housing 4, a burner 2 fed by a fan 11 with a fuel gas / air mixture, and a primary heat exchanger 3.
  • the combustion chamber 5 is located between burner 2 and primary heat exchanger 3.
  • the primary heat exchanger 3 consists of plates 10 , which have a connection for a return 6 and a flow 7. Indentations 18 divide the watercourse of the primary heat exchanger 3. Furthermore, the plates 10 have embossed spacers 8.
  • the housing 4 has an exhaust pipe connection 9. In operation, the exhaust gases 13 of the burner 2 flow through the combustion chamber 5 and then the primary heat exchanger 3 and give their thermal Energy to the water flow 14 within the primary heat exchanger 3 from. The cooled exhaust gases flow through the housing 4 into the exhaust gas line connection 9.
  • Figure 2 shows a plate 10 including the position of two sections A - A and B - B.
  • FIG. 3 shows a section through the primary heat exchanger 3.
  • two plates 10 form water channels 17.
  • the impressed spacers 8 defined gaps 16 are formed, through which the exhaust gases of the burner 2 can flow.
  • the water channels 17 are divided by the impressions 18.
  • copper foils are used, which melt in an oven and thus contribute to a positive connection.
  • FIG 4 shows another section through the heat cell 1.
  • the water channels 17 of the primary heat exchanger 3 are connected in parallel to the return line 6 and the flow 7.
  • the water channel 17, which is connected first to the return line 6, is connected on the forward side as the last.
  • all water channels 17 are traversed evenly with the same pressure loss.
  • the combustion chamber 5 is further limited to the housing 4 via insulation boards 12.
  • FIG. 5 shows a primary heat exchanger 3 according to the invention in section with differently shaped plates 10, wherein it is particularly noticeable in comparison to the other variants that the assembled plates 10 are not identical.
  • FIG. 6 shows a primary heat exchanger 3 according to the invention with gaps 16 which become narrower in the flow direction of the exhaust gas. Since the exhaust gas is cooled in the heat exchanger 3 and therefore has a higher density; Thus, the flow rate is lower, and further increases the heat exchanger to the outside of its cross-sectional area, thus, the flow rate can be increased to allow a high heat transfer.
  • FIG. 7 shows a plate 7 with a dome-shaped inner contour.

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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Fuel Cell (AREA)
EP05015400.4A 2004-08-06 2005-07-15 Cellule thermique d'un appareil de chauffage Not-in-force EP1624270B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004038562 2004-08-06
AT4232005 2005-03-14

Publications (2)

Publication Number Publication Date
EP1624270A1 true EP1624270A1 (fr) 2006-02-08
EP1624270B1 EP1624270B1 (fr) 2015-09-02

Family

ID=35198047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05015400.4A Not-in-force EP1624270B1 (fr) 2004-08-06 2005-07-15 Cellule thermique d'un appareil de chauffage

Country Status (3)

Country Link
EP (1) EP1624270B1 (fr)
DE (1) DE102005033050A1 (fr)
ES (1) ES2554508T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2157382A3 (fr) * 2008-08-22 2015-09-23 Robert Bosch GmbH Appareil de chauffage

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1933101A3 (fr) 2006-12-08 2012-09-05 Vaillant GmbH Echangeur thermique avec d'une chambre de combustion
CN101245947B (zh) * 2007-11-30 2010-05-19 华南理工大学 一种板式燃气热水器的热交换器
ITBO20130632A1 (it) 2013-11-20 2015-05-21 Gas Point S R L Scambiatore di calore a piastre, in particolare per caldaie a condensazione

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1277872A (en) * 1968-06-06 1972-06-14 Delaney Gallay Ltd Improvements in and relating to heat exchangers
GB1357137A (en) * 1970-05-27 1974-06-19 Defawes Ets Thomas Heat exchanger
EP0745813A2 (fr) * 1995-05-31 1996-12-04 VIESSMANN WERKE GmbH & CO. Echangeur de chaleur, en particulier pour chaudière
EP1279903A2 (fr) * 2001-07-26 2003-01-29 Robert Bosch Gmbh Echangeur de chaleur pour une chaudière à gaz, esp. pour chaudière à condensation
WO2003106909A2 (fr) * 2002-06-13 2003-12-24 Worgas Bruciatori S.R.L. Echangeur thermique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1277872A (en) * 1968-06-06 1972-06-14 Delaney Gallay Ltd Improvements in and relating to heat exchangers
GB1357137A (en) * 1970-05-27 1974-06-19 Defawes Ets Thomas Heat exchanger
EP0745813A2 (fr) * 1995-05-31 1996-12-04 VIESSMANN WERKE GmbH & CO. Echangeur de chaleur, en particulier pour chaudière
EP1279903A2 (fr) * 2001-07-26 2003-01-29 Robert Bosch Gmbh Echangeur de chaleur pour une chaudière à gaz, esp. pour chaudière à condensation
WO2003106909A2 (fr) * 2002-06-13 2003-12-24 Worgas Bruciatori S.R.L. Echangeur thermique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2157382A3 (fr) * 2008-08-22 2015-09-23 Robert Bosch GmbH Appareil de chauffage

Also Published As

Publication number Publication date
EP1624270B1 (fr) 2015-09-02
DE102005033050A1 (de) 2006-03-16
ES2554508T3 (es) 2015-12-21

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