EP0360090A1 - Chaudière à gaz avec brûleur atmosphérique - Google Patents

Chaudière à gaz avec brûleur atmosphérique Download PDF

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Publication number
EP0360090A1
EP0360090A1 EP89116600A EP89116600A EP0360090A1 EP 0360090 A1 EP0360090 A1 EP 0360090A1 EP 89116600 A EP89116600 A EP 89116600A EP 89116600 A EP89116600 A EP 89116600A EP 0360090 A1 EP0360090 A1 EP 0360090A1
Authority
EP
European Patent Office
Prior art keywords
gas
insert
burner
shell
displacer
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
EP89116600A
Other languages
German (de)
English (en)
Other versions
EP0360090B1 (fr
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 AT89116600T priority Critical patent/ATE83552T1/de
Publication of EP0360090A1 publication Critical patent/EP0360090A1/fr
Application granted granted Critical
Publication of EP0360090B1 publication Critical patent/EP0360090B1/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
    • F24H1/24—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
    • F24H1/28—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 including one or more furnace or fire tubes
    • 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
    • F24H2230/00—Solid fuel fired boiler

Definitions

  • the invention relates to a gas boiler with an atmospheric burner according to the preamble of the main claim.
  • a gas boiler of this type is known from FR-A-20 86 966. Furthermore, a relevant gas boiler according to DE-U-80 02 621 is known. A gas boiler according to DE-A-22 89 019 has a similar structure.
  • the displacer body of the boiler according to DE-U-80 02 621 is a kind of pot-shaped combustion chamber which, with its open end, faces the atmospheric gas burner arranged underneath is directed. The heat transfer to the heat transfer medium can therefore only take place via the ribbed shaft walls, and since this displacer insert cannot be cooled and thus becomes very hot, this displacer can also have a non-NOX-reducing effect on the combustion process.
  • a water-carrying sheet metal cylinder is used in the burner shaft, occupying practically its entire height, which is connected to the water-carrying double wall of the burner shaft with supply and return connections.
  • the outer wall of the cylinder is covered with longitudinal ribs formed and attached from special profiles.
  • This cylindrical displacement insert is particularly thermally highly stressed on the inflow side and is therefore also inevitably exposed to condensate attacks, whereby, as far as heat transfer is concerned, an imbalance between the non-finned, water-cooled combustion chamber on the one hand and the externally finned, water-cooled displacement insert on the other consists.
  • FR-A-20 86 966 does not show how the displacement insert is actually designed to be able to meet all heating requirements, namely a sufficiently long burnout distance, condensate resistance, NOX reduction with the largest possible heat transfer area and still simple production.
  • the invention is therefore based on the object of improving a gas boiler of the generic type in such a way that, in the case of condensate-resistant design of its hot gas-charged areas, the central shaft area within the fins also, as in the case of the boiler according to FR-A-20 86 966, for heat transfer to the heat transfer medium can be used with the proviso that these elements involved in their manufacture and assembly can be made condensate-proof in a simple manner and at the same time have a NOX-reducing effect on the combustion process, the production of the displacement insert also taking into account environmentally friendly aspects.
  • the principle of a water-carrying displacement insert is therefore not simple, which would be obvious, in such a way that the displacement insert according to FR-A-20 86 966 is replaced by one made of cast iron, but this displacement insert is made of two liquid-tight materials joinable shells formed, which are "green shaped” formed of condensate-resistant cast. “Green-shaped” is understood to mean that the casting can be formed without a core, ie the positive model of the two shells is designed in such a way that it can be removed from the molding sand and no cores of molding sand are arranged between the two molding sand parts Need to become.
  • the entire displacement insert is therefore very easy to produce by casting, which can be kept considerably shorter or smaller than the displacement insert according to FR-A-20 86 due to the fact that the combustion chamber wall should also be provided with longitudinal ribs 966.
  • the gas boiler consists of a cylindrical, water-cooled burner shaft 1, in the lowest area of which the atmospheric gas burner 2 and, via this, a displacer insert 4, which is circular in cross-section and is delimited by ribbing and is delimited by ribbing, is connected to the water-cooled burner shaft 1 and above it there is an exhaust gas collection chamber 5 with a central exhaust gas outlet connection.
  • the displacer insert 4 is formed from two shells 6, 7 which can be joined together in a liquid-tight manner and which are “green-shaped” and are formed from condensate-resistant cast.
  • the lower, burner-side shell 6 has a sprue extension 8 for connecting the inflow channel 9, which connects the displacement insert 4 with the water-carrying double jacket of the combustion shaft 1.
  • two or three inflow channels 9, correspondingly distributed over the circumference, can also be provided. In the embodiment shown in FIG.
  • the upper shell 7 is formed as a pot 7 'and this is inserted into the likewise cup-shaped lower shell 6, the peripheral edge 20 of the upper shell 7' being placed on the peripheral edge 21 of the lower shell in a sealed manner
  • Case is provided both with the connection extension 8 for the lower inflow channel 9 and for the upper outflow channel 10.
  • both the lower shell 6 is provided with radially outwardly directed longitudinal ribs 12 and the combustion chamber wall 14 is provided with radially inwardly directed longitudinal ribs 15, the ribs 12 engaging in the spaces between the ribs 15.
  • the lower shells 6 in all of the exemplary embodiments are provided with cast-on heat transfer surface enlargements 11 in the form of knobs 17 on their bottom wall 16, which can easily be taken into account in the production of the lower shell 6, since this makes the molding from casting material readily and allows without much effort.
  • the gas boiler is designed such that the upper shell 7, which is designed as a pot and is inserted into the lower shell 6, has a circumferential edge 21 which bulges back in the direction of its base 16, and the connecting extension 8 for the upper outflow channel 10 has.
  • the curved peripheral edge 21 also has radially outwardly directed longitudinal ribs 12 '.
  • the upper shell 7 is also provided with radially outwardly directed longitudinal ribs 12.
  • the upper shell 7 is, as shown, designed as an arch 18 over the opening 18 of the lower, cup-shaped shell 6, which is provided with an outflow region 19 rising to the outflow channel connection 10.
  • Such a shaping can also be carried out without a core, with only the hole for the connection of the upper overflow channel 10 having to be drilled out.
  • the connection extension 8 on the lower shell 6 points downwards and the overflow channel 9 is connected very deeply, as can be seen, to the water-carrying double wall of the combustion shaft 1.
  • the two shells 6, 7 are connected to one another at their connecting edges 22, which of course have to be machined accordingly, with screws 23, including an annular seal 24.
  • FIG. 6 it is also possible, and this also applies to the embodiment of FIG. 7, to provide the connecting edges 22 of the two shells 6, 7 with internal and external threads 25 and to screw the two shells together in a sealed manner.
  • the installation in the combustion shaft 1 takes place, of course, in the screwed-together state of the displacer body 4.
  • the displacer body 4 has a pot-like upper bowl 7 projecting into the interior of the lower bowl 6, as is the case with the exemplary embodiments according to FIGS.
  • the combustion shaft wall 14 is double-walled, that is, according to the exemplary embodiment, the combustion shaft wall is formed from individual cast rings 14 ', on which the radially inward directed longitudinal ribs 15 are cast with.
  • the inflow and outflow ducts 9, 10, like the combustion shaft wall 14 are double-walled.
  • the inner channel piece is sealed and screwed into the molded-on connection extension 8 of the displacement insert 4, the outer channel piece 28 then simply being pushed over the opening 27 in the combustion shaft wall 14.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Incineration Of Waste (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP89116600A 1988-09-14 1989-09-08 Chaudière à gaz avec brûleur atmosphérique Expired - Lifetime EP0360090B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89116600T ATE83552T1 (de) 1988-09-14 1989-09-08 Gasheizkessel mit atmosphaerischem brenner.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3831237 1988-09-14
DE3831237A DE3831237A1 (de) 1988-09-14 1988-09-14 Gasheizkessel mit atmosphaerischem brenner

Publications (2)

Publication Number Publication Date
EP0360090A1 true EP0360090A1 (fr) 1990-03-28
EP0360090B1 EP0360090B1 (fr) 1992-12-16

Family

ID=6362936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116600A Expired - Lifetime EP0360090B1 (fr) 1988-09-14 1989-09-08 Chaudière à gaz avec brûleur atmosphérique

Country Status (4)

Country Link
EP (1) EP0360090B1 (fr)
AT (1) ATE83552T1 (fr)
DE (2) DE3831237A1 (fr)
ES (1) ES2037359T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT411492B (de) * 1999-01-19 2004-01-26 Vaillant Gmbh Anordnung mit einem wandheizgerät

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8420869U1 (de) * 1984-07-12 1987-07-23 Vießmann, Hans, Dr.h.c., 3559 Battenberg Heizungskessel für flüssige und gasförmige Brennstoffe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE451368C (de) * 1927-10-25 Vosswerke Akt Ges Dampfbadkochkessel
FR2086966A5 (fr) * 1970-04-15 1971-12-31 Vidalenq Maurice
DE8002621U1 (de) * 1980-02-01 1982-01-14 Vießmann, Hans, 3559 Battenberg Heizungskessel mit atmosphaerischem gasbrenner
DE3425667A1 (de) * 1984-07-12 1986-01-23 Hans Dr.h.c. 3559 Battenberg Vießmann Heizungskessel fuer fluessige und gasfoermige brennstoffe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8420869U1 (de) * 1984-07-12 1987-07-23 Vießmann, Hans, Dr.h.c., 3559 Battenberg Heizungskessel für flüssige und gasförmige Brennstoffe

Also Published As

Publication number Publication date
EP0360090B1 (fr) 1992-12-16
ES2037359T3 (es) 1993-06-16
ATE83552T1 (de) 1993-01-15
DE58903021D1 (de) 1993-01-28
DE3831237A1 (de) 1990-03-22

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