EP0345426B1 - Trennwand für Heizungskessel - Google Patents

Trennwand für Heizungskessel Download PDF

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Publication number
EP0345426B1
EP0345426B1 EP89105817A EP89105817A EP0345426B1 EP 0345426 B1 EP0345426 B1 EP 0345426B1 EP 89105817 A EP89105817 A EP 89105817A EP 89105817 A EP89105817 A EP 89105817A EP 0345426 B1 EP0345426 B1 EP 0345426B1
Authority
EP
European Patent Office
Prior art keywords
heat
combustion chamber
chamber wall
cavity
sheet metal
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.)
Expired - Lifetime
Application number
EP89105817A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0345426A1 (de
Inventor
Hans Dr. Viessmann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT89105817T priority Critical patent/ATE80938T1/de
Publication of EP0345426A1 publication Critical patent/EP0345426A1/de
Application granted granted Critical
Publication of EP0345426B1 publication Critical patent/EP0345426B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • F28F13/182—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing especially adapted for evaporator or condenser surfaces
    • 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
    • F24H1/26—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 forming an integral body
    • F24H1/263—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 forming an integral body with a dry-wall combustion chamber
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/16—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion
    • 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

Definitions

  • the invention relates to a partition for heating boilers, namely the combustion chamber wall or heating gas draft tube, which separates the water side from the gas-carrying side and on the gas side of which heat transfer area enlargements are arranged in the form of longitudinal ribs folded from a sheet metal blank and the sheet metal blank of which is thermally conductively connected to the combustion chamber wall, the rib folds in limit their foot area with the inner surface of the combustion chamber wall and the cavity gussets are filled with a heat-conducting material.
  • Partition walls designed in this way are well known, so that no special printed evidence is required in this regard.
  • This design of the partitions which can be used both for enclosing the combustion chamber and for forming heating gas pipes, has proven itself well, since in addition to its function as an enlargement of the heat transfer surface on the gas side, it also provides corrosion protection with regard to condensate.
  • the heat-conducting connection between the sheet metal blank folded into longitudinal ribs and the surrounding wall, which is generally a more or less large pipe, depending on whether the partition wall should enclose a combustion chamber or a hot gas flue, is achieved either by a press fit and / or partial welding .
  • the widths of the cavity gussets at the base of the rib folds add up to a not inconsiderable width, which cannot be used directly for direct heat transfer, because the wall parts of the sheet metal blank that delimit the respective cavity gussets do not necessarily exist to be brought into heat-conducting contact with the wall on which the sheet metal blank sits.
  • BE-A-458 680 it is known for a heat exchanger with a corresponding wall design to fill this gusset with welding or soldering material, which apparently results automatically when the sheet folded into ribs is connected to the associated supporting wall by molten metal flow . This is the case with combustion chamber walls and heating gas pipes practically impossible to achieve due to the much larger dimensions.
  • the invention is therefore based on the object of designing a partition of the type mentioned in such a way that the reduced heat transfer in the region of the cavity gusset can be intensified by simple means.
  • the design of the partition according to the invention is of particular importance for the case in which the fins not only absorb heat from the heating gases flowing past, but also directly and directly from the ends the ribs of the thermally conductively connected walls, because only in this way can the large amount of heat introduced into the ribs actually be dissipated.
  • the other solution consists in the fact that in the region of the cavity gusset-side gusset of each rib fold, the combustion chamber wall is formed in the cavity, forming the heat-conducting material, and molded onto the inner foot region of the rib folds, which can be easily accomplished with suitable deformation tools. It may well be considered to keep the thickness of the sheet metal blank greater than the thickness of the actual surrounding wall.
  • the partition can be used both as a firebox enclosure and in the form of more or less small heating gas pipes, and only the special gusset design is of interest here, a boiler that is equipped with such a partition is not particularly shown, especially since the most varied Boiler constructions that are suitable for this are adequate are known.
  • the water side of such a partition is designated W in FIG. 1 and the gas side G.
  • the sheet metal blank l2, which is provided with the rib folds 8, as shown, is connected in a heat-conducting manner on the fire wall 9. In the production of the rib folds 8, it is not possible to avoid the formation of hollow gussets l in the foot region l3, which is inevitable associated with this is that the wall parts 3, as indicated in FIG.
  • the thermally conductive material in the form of the gusset cross-section is at least approximately corresponding to the extruded profile with shaped longitudinal ribs 6.
  • extruded profiles 5 are then assembled by welding into a cylindrical body that forms the combustion chamber wall.
  • the sheet metal blank 12 provided with the rib folds 8 and likewise cylindrical is then pressed into this body with suitable auxiliary tools.
  • FIG. 4 shows the partition wall rounded to a cylindrical tube, as it is either used as a combustion chamber or reduced in diameter accordingly and inserted in a required number into a water-bearing boiler housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Insulation (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Details Of Fluid Heaters (AREA)
EP89105817A 1988-06-04 1989-04-03 Trennwand für Heizungskessel Expired - Lifetime EP0345426B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89105817T ATE80938T1 (de) 1988-06-04 1989-04-03 Trennwand fuer heizungskessel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3819071A DE3819071C1 (enrdf_load_stackoverflow) 1988-06-04 1988-06-04
DE3819071 1988-06-04

Publications (2)

Publication Number Publication Date
EP0345426A1 EP0345426A1 (de) 1989-12-13
EP0345426B1 true EP0345426B1 (de) 1992-09-23

Family

ID=6355873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89105817A Expired - Lifetime EP0345426B1 (de) 1988-06-04 1989-04-03 Trennwand für Heizungskessel

Country Status (4)

Country Link
EP (1) EP0345426B1 (enrdf_load_stackoverflow)
AT (1) ATE80938T1 (enrdf_load_stackoverflow)
DE (1) DE3819071C1 (enrdf_load_stackoverflow)
ES (1) ES2035403T3 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9311128U1 (de) * 1993-07-28 1993-09-02 Vießmann, Hans, Dr., 35088 Battenberg Heizkessel
DE9309771U1 (de) * 1993-07-01 1993-08-26 Viessmann Werke Gmbh & Co, 35108 Allendorf Heizgaszug

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE458680A (enrdf_load_stackoverflow) *
DE8531100U1 (de) * 1985-11-04 1987-10-29 Vießmann, Hans, Dr.h.c., 3559 Battenberg Heizgaszugrohr

Also Published As

Publication number Publication date
ATE80938T1 (de) 1992-10-15
EP0345426A1 (de) 1989-12-13
DE3819071C1 (enrdf_load_stackoverflow) 1989-07-13
ES2035403T3 (es) 1993-04-16

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