EP0414925B1 - Chaudière pour brûler des combustibles fluides ou gazeux - Google Patents

Chaudière pour brûler des combustibles fluides ou gazeux

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Publication number
EP0414925B1
EP0414925B1 EP89115814A EP89115814A EP0414925B1 EP 0414925 B1 EP0414925 B1 EP 0414925B1 EP 89115814 A EP89115814 A EP 89115814A EP 89115814 A EP89115814 A EP 89115814A EP 0414925 B1 EP0414925 B1 EP 0414925B1
Authority
EP
European Patent Office
Prior art keywords
section
sections
heating boiler
wall
boiler according
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.)
Revoked
Application number
EP89115814A
Other languages
German (de)
English (en)
Other versions
EP0414925A1 (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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8201806&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0414925(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to DE8989115814T priority Critical patent/DE58904920D1/de
Priority to EP89115814A priority patent/EP0414925B1/fr
Priority to AT89115814T priority patent/ATE91539T1/de
Priority to ES89115814T priority patent/ES2042912T3/es
Publication of EP0414925A1 publication Critical patent/EP0414925A1/fr
Application granted granted Critical
Publication of EP0414925B1 publication Critical patent/EP0414925B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • F24H1/30—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

Definitions

  • the invention relates to a boiler for burning liquid or gaseous fuels according to the preamble of claim 1.
  • Boilers of the type mentioned are known, for example, from EP-A-0 217 320 and are used in detail in different, but in principle identical construction forms.
  • this well-known boiler design applies both to heating steel made from sheet steel and from cast iron, but also, for example, to a steel sheet / cast iron combination according to the aforementioned EP-A-0 217 320, in the subject of which the middle and end members are used as rings in the sheet steel housing , do not form the water-bearing housing itself, but only a condensate-proof inner layer in the housing that forms the actual combustion chamber wall.
  • Pure cast-iron boilers are made up of relatively narrow, one-piece and core-cast individual members, which, nippled on the water side in the area of relatively small overflow openings, are joined to form a block consisting of a large number of individual members.
  • an enormous technical effort has to be made, especially considering that the individual parts or the cast members are manufactured in the core casting.
  • the binders for binding the molding sand of the cores, which are necessary for the formation of the cavities in a boiler section are highly toxic.
  • the core molding sand which can no longer be used after casting, can therefore generally not simply be deposited in a normal landfill and must be brought to a special landfill, which is associated with high costs and considerable circumstances.
  • cast iron kettles from a large number of individual members which are to be closed except for the small openings to be nippled, the amount of casting material is also relatively large, ie cast iron kettles inevitably have a considerable weight.
  • the invention is therefore based on the object to improve and create a boiler of the type mentioned, which is to be made with respect to its essential parts, i.e. housing and combustion chamber, from castings which are inexpensive in terms of condensate resistance, but these parts can be poured without a core and are therefore rational in terms of production and should be environmentally friendly to produce, with the additional requirement that such a boiler can be assembled from only a few parts with little assembly effort.
  • the boiler according to the invention is only made of "shell-like" pourable and thus “green moldable” elements, ie elements which can be cast without a core formed, which can be easily sealed and sealed without nippling, form both the water-bearing housing and the combustion chamber.
  • the core-free formability of the elements not only eliminates the entire core casting and disposal effort for the molding sand, but it also allows a much larger width dimension of the individual links compared to today's usual width dimensioning of cast members.
  • the coreless casting of the links according to the invention also allows problem-free and advantageous special and further shaping of the links, which are aimed in particular in the direction of a sufficiently pressure-resistant design, the thin-walled design of the walls and simple and basically the same design of the end links, which will be explained in more detail and what is covered in part of the subclaims.
  • the design of the boiler of the links according to the invention also has the great advantage that, despite the link construction, there is a water-carrying interior which is not divided by narrow and small overflow openings, but rather an interior which practically corresponds to that of a steel heating boiler. This makes it possible to use the same middle links and corresponding end links to combine them into a wide variety of boiler types.
  • the boiler consists of a water-bearing housing 3, provided with supply and return connections 1, 2, which is penetrated by a combustion chamber 4, the openings 5 at both ends of which are provided with closures 6, 7, one of which 6 is the insert opening 8 for the burner and the other 7 contains the exhaust duct. It is now essential for such a boiler, and this applies to all exemplary embodiments, that the water-carrying housing 3 is formed from at least one middle member 10 and two end members 11, 12, the corelessly shaped members 10-12 with their opening edges 13 being directed towards one another and sealed are tied together.
  • the wall 14 delimiting the combustion chamber 4 is designed as a web 15 encircling the links, which ends as an integrally molded part in the connecting plane E of the link in question, the cross wall 16 supporting the web 15 of the at least one boiler member 10 with several, all Link interiors 17 connecting openings 18 is provided.
  • these openings 17 are in relation to the total cross section of a link very large, ie the sum of all cross sections 17 corresponds practically to the total cross section of a link in the water-carrying area.
  • a water-carrying interior which is not divided by narrow and small overflow openings which are expensive to nipple is divided, which practically corresponds to the water-carrying interior of a comparable steel heating boiler.
  • 1 is a horizontal boiler with a pot-shaped combustion chamber 20 inserted in the combustion chamber 4.
  • the two central links 10 are H-shaped in cross section, while the two end links 11, 12 Are U-shaped, the end member 11 forms a ring collar for the connection of the combustion chamber closure here carrying the burner 9, and in this case the end member 12 has a flue-side rear wall with a cast-on flue gas outlet connection 21.
  • All of these links can be cast without a core, ie the casting molds only have an upper and lower part, which, when joined together, form the mold cavity for the links. All links are formed in the region of their opening edges 13 such that all the connecting edges 13 'have interlocking stages 30, in one stage or another a groove with an annular seal 31 located therein is arranged (see FIG. 3).
  • a tensioning connection of the links with one another is provided in all exemplary embodiments in such a way that all the links 10, 11, 12 are distributed uniformly over the housing circumference, the links are clamped together in their openings 18 reaching through clamping rods 28, which engage with their ends in a correspondingly cross-sectionally dimensioned manner and with respect to the openings 18 in the transverse walls 16 in a much smaller manner through openings 29.
  • Such an end of the tension rods which are shown in their distribution over the entire circumference in FIG. 2, is illustrated in FIG. 4.
  • This arrangement and assignment of the tie rods 28 on and to the individual links makes the molding of screw-on extensions both on the outside on the links and on the combustion chamber side unnecessary in the casting, but, as mentioned, would also be possible without having to depart from the principle of green formability.
  • This arrangement of the tension rods 28 in the passage of the water-carrying interior advantageously ensures that both the outwardly sealing ring seals 31 and the ring seals 31 lying on the combustion chamber side can be clamped together at the same time.
  • the green formability of the links also makes it possible for stiffening ribs 34, which are set back with respect to the opening edges 13, to be arranged on the water side in the links, evenly distributed over the circumference between the respective link outer wall 33 and the wall 14 delimiting the combustion chamber 4.
  • the shape of the ribs 34 is in the Fi. 1 and Fig. 4 to 8 clarifies and their arrangement with respect to the boiler cross-section in Fig. 2.
  • the back offset of the ribs and their shape in side view ensures that the circulation of the boiler water is not hindered, whereby in this regard also the very large Openings 18 in the transverse walls 16 ensure a coherent, water-bearing interior.
  • the exemplary embodiment according to FIG. 5 is also a boiler to be set up horizontally, which is different from the exemplary embodiment according to FIG. 1 with regard to the heating gas flow in the combustion chamber 4 distinguishes when the combustion chamber 20 used is open to the deflecting base 25, and the exhaust gases on the burner side of the boiler at the end member 11 arranged there by the exhaust-gas outlet connection 21 cast on, leave as shown.
  • this end member 12 which is remote from the burner, is designed with two shells, one shell 24 forming the deflection floor 25 on the combustion chamber side, which is supported by a transverse wall 16 provided with openings 18, and the other shell 26 the outer closure bottom 27 of the water-bearing housing 3.
  • the embodiment according to FIG. 7 differs from the ones described above in that only U-shaped links are used in cross section.
  • the end member 11 and the at least one middle member 10 are cross-sectionally and, as mentioned, U-shaped, while the other end member 12, which has the flue gas outlet connection piece 21, is designed as a closure plate 23.
  • the connecting edge 22 for the combustion chamber closure 6 on the end member 12 and to provide the other end member 11 with the closure plate 23 and the exhaust nozzle 21.
  • each link 10 to 12 is covered with such a double wall 32, the double walls 32 being provided with the longitudinal ribs 19. If the double walls 32 are cast elements, the longitudinal ribs 19 are formed directly on them, and if it is a double jacket made of sheet metal, the longitudinal ribs are folded accordingly in a known manner from the sheet metal blank and in the links with thermal contact introduced.
  • this embodiment has the advantage that the individual members can be formed without longitudinal ribs.
  • the double walls 32 when designing the double walls 32 from cast iron, it is in the hand without the basic shape for the molding need to change the limbs in order to be able to produce the longitudinal ribs with regard to their special design (different heights and possibly different rib spacing from one another).
  • Such stipulations with regard to the design of the ribs are also possible if, as shown in the other exemplary embodiments, the ribs are formed directly when the individual members are cast.

Landscapes

  • 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)
  • Combustion Of Fluid Fuel (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Claims (10)

  1. Chaudière de chauffage destinée à la combustion de combustibles liquides ou gazeux, comprenant une enceinte (3) de circulation d'eau qui est munie de raccords aller et retour (1, 2) et qui est traversée par un foyer (4) dont les ouvertures (5) situées à chaque extrémité sont pourvues d'éléments de fermeture (6, 7) dont l'un (6) comporte l'ouverture d'insertion (8) du brûleur (9) et dont l'autre (7) comporte l'orifice (21) d'évacuation des fumées, au moins un module central (10) et deux modules d'extrémité (11, 12) en fonte étant montés dans l'enceinte (3) de circulation d'eau, les modules (10 à 12) moulés sans noyau ayant leurs bords d'ouverture dirigés les uns vers les autres et étant serrés les uns contre les autres de manière étanche, et les modules (10 à 12) comportant des dos périphériques qui se terminent, sous la forme de pièces venues de fonderie, dans le plan d'assemblage du module correspondant, caractérisée en ce que au moins l'un des modules centraux (10) et les deux modules d'extrémité (11, 12) forment l'enceinte (3) de circulation d'eau proprement dite, et en ce que chaque paroi (14) qui délimite le foyer (4) est conçue sous la forme d'un dos (15) qui fait le tour des modules et qui se termine, sous la forme d'une pièce venue de fonderie, dans les plans d'assemblage (E) du module correspondant, la paroi transversale (16) du module central (10) au nombre d'au moins un, ladite paroi (16) portant le dos (15), étant pourvue de plusieurs ouvertures (18) reliant les chambres intérieures (17) des modules.
  2. Chaudière de chauffage selon la revendication 1, caractérisée en ce que, sur le côté foyer, le dos (15) est muni de nervures longitudinales (19).
  3. Chaudière de chauffage selon la revendication 1 ou 2, caractérisé en ce que le module central (10), au nombre d'au moins un, présente une section transversale en forme de H et les deux modules d'extrémité (11, 12) présentent une section transversale en forme de U.
  4. Chaudière de chauffage selon la revendication 1 ou 2, caractérisée en ce que l'un des modules d'extrémité (11) et le module central (10), au nombre d'au moins un, ont une section transversale en forme de U, et en ce que l'autre module d'extrémité (12), qui comporte la tubulure (21) de raccord d'évacuation des gaz de fumée ou le bord (22) d'assemblage de l'élément (6) de fermeture du foyer, est conçu sous la forme d'une plaque de fermeture (23).
  5. Chaudière de chauffage selon la revendication 1 ou 2, caractérisée en ce que le module d'extrémité (12) éloigné du brûleur est conçu sous la forme d'une double coque, l'une des coques (24) formant, sur le côté foyer, un fond déflecteur (25) portant une paroi transversale (16) munie d'ouvertures (18), et l'autre coque (26) formant le fond extérieur de fermeture (27) de l'enceinte (3) de circulation d'eau.
  6. Chaudière de chauffage selon l'une des revendications 1 à 5, caractérisée en ce que tous les modules (10, 11, 12) sont serrés les uns contre les autres par des tirants (28) qui sont répartis à intervalles réguliers sur le pourtour de l'enceinte, qui traversent les modules dans leurs ouvertures (18) et dont les extrémités traversent, de manière étanche, des ouvertures (29) de section transversale correspondante et nettement plus petites que les ouvertures (18) ménagées dans les parois transversales (16).
  7. Chaudière de chauffage selon l'une des revendications 1 à 6, caractérisée en ce que tous les bords d'assemblage (13') de tous les modules (10, 11, 12) sont conçus sous la forme d'étages emboîtés (30), et en ce qu'une gorge, dans laquelle est logé un joint annulaire (31), est pratiquée dans l'un ou l'autre étage (30).
  8. Chaudière de chauffage selon l'une des revendications 1 à 7, caractérisée en ce que des nervures raidisseuses (34) sont prévues sur le côté eau, dans les modules (10, 11, 12), et réparties à intervalles réguliers sur le pourtour entre la paroi extérieure (33) de chaque module et la paroi (14) qui délimite le foyer (4), et en ce que lesdites nervures raidisseuses (34) sont situées en retrait par rapport aux bords d'ouverture (13).
  9. Chaudière de chauffage selon l'une des revendications 1 à 8, caractérisée en ce que la paroi (14) qui délimite le foyer (4) est garnie d'une double paroi plaquée (32) en une ou plusieurs parties, en fonte ou en tôle, qui s'étend sur la largeur (B) d'au moins l'un des modules.
  10. Chaudière de chauffage selon la revendication 9, caractérisée en ce que la double paroi (32) est munie de nervures longitudinales (19).
EP89115814A 1989-08-28 1989-08-28 Chaudière pour brûler des combustibles fluides ou gazeux Revoked EP0414925B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8989115814T DE58904920D1 (de) 1989-08-28 1989-08-28 Heizkessel zum verbrennen fluessiger oder gasfoermiger brennstoffe.
EP89115814A EP0414925B1 (fr) 1989-08-28 1989-08-28 Chaudière pour brûler des combustibles fluides ou gazeux
AT89115814T ATE91539T1 (de) 1989-08-28 1989-08-28 Heizkessel zum verbrennen fluessiger oder gasfoermiger brennstoffe.
ES89115814T ES2042912T3 (es) 1989-08-28 1989-08-28 Caldera de calefaccion para la combustion de combustibles liquidos o gaseosos.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89115814A EP0414925B1 (fr) 1989-08-28 1989-08-28 Chaudière pour brûler des combustibles fluides ou gazeux

Publications (2)

Publication Number Publication Date
EP0414925A1 EP0414925A1 (fr) 1991-03-06
EP0414925B1 true EP0414925B1 (fr) 1993-07-14

Family

ID=8201806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89115814A Revoked EP0414925B1 (fr) 1989-08-28 1989-08-28 Chaudière pour brûler des combustibles fluides ou gazeux

Country Status (4)

Country Link
EP (1) EP0414925B1 (fr)
AT (1) ATE91539T1 (fr)
DE (1) DE58904920D1 (fr)
ES (1) ES2042912T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4035138A1 (de) * 1990-11-06 1992-05-07 Viessmann Hans Heizkessel zum verbrennen fluessiger oder gasfoermiger brennstoffe
DE4126706C1 (fr) * 1991-06-17 1992-10-29 Buderus Heiztechnik Gmbh, 6330 Wetzlar, De
DE4121219C2 (de) * 1991-06-27 1994-04-07 Buderus Heiztechnik Gmbh Gliederheizkessel
DE4210314A1 (de) * 1992-03-30 1993-10-07 Hans Dr Viesmann Heizkessel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE469170A (fr) *
DE2017992A1 (de) * 1970-04-15 1971-10-28 Strebelwerk Gmbh, 6800 Mannheim Heizkessel für Sammelheizungsanlagen
CH577665A5 (fr) * 1973-07-11 1976-07-15 Fascione Pietro
DE8600853U1 (de) * 1986-01-13 1986-02-27 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Metallguß-Glied für einen Gliederkessel od. dgl. Wärmetauscher

Also Published As

Publication number Publication date
ATE91539T1 (de) 1993-07-15
ES2042912T3 (es) 1993-12-16
DE58904920D1 (de) 1993-08-19
EP0414925A1 (fr) 1991-03-06

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