EP0120435B1 - Structure du parcours du gaz de chauffage dans une chaudière de chauffage - Google Patents

Structure du parcours du gaz de chauffage dans une chaudière de chauffage Download PDF

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Publication number
EP0120435B1
EP0120435B1 EP84102993A EP84102993A EP0120435B1 EP 0120435 B1 EP0120435 B1 EP 0120435B1 EP 84102993 A EP84102993 A EP 84102993A EP 84102993 A EP84102993 A EP 84102993A EP 0120435 B1 EP0120435 B1 EP 0120435B1
Authority
EP
European Patent Office
Prior art keywords
profiles
heating gas
wall
gas flue
webs
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
Application number
EP84102993A
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German (de)
English (en)
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EP0120435A3 (en
EP0120435A2 (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
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT84102993T priority Critical patent/ATE38091T1/de
Publication of EP0120435A2 publication Critical patent/EP0120435A2/fr
Publication of EP0120435A3 publication Critical patent/EP0120435A3/de
Application granted granted Critical
Publication of EP0120435B1 publication Critical patent/EP0120435B1/fr
Expired 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
    • F24H1/263—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

Definitions

  • the invention relates to a heating gas train for heating boilers according to the preamble of the main claim.
  • Such heating gas flues for heating boilers are known, for example, from DE-A 1 778 832.
  • the longitudinal ribs are formed by a cylindrically rolled sheet metal blank, which is often folded to form the longitudinal ribs, a sealed space being present between the folded tube and the adjacent water-cooled wall to increase the heating surface temperature and thus to reduce the risk of condensate formation , in which an insulating layer can optionally be arranged, d. H. there is no direct heat-conducting connection between the folded tube and the water-cooled wall.
  • Heating gas flues which are divided into individual channels by longitudinal ribs, have proven themselves and have been introduced on the market.
  • Such heating boilers are operated today with so-called sliding temperature and are therefore referred to as low-temperature boilers.
  • Such heating boilers can even be completely switched off in the most modern design and provided with a corrosion protection insert which consists of a cast body which is pressed or shrunk into the tubular insert made of sheet steel (DE-A 2 948 864).
  • a corrosion protection insert which consists of a cast body which is pressed or shrunk into the tubular insert made of sheet steel (DE-A 2 948 864).
  • a corrosion protection insert which consists of a cast body which is pressed or shrunk into the tubular insert made of sheet steel (DE-A 2 948 864).
  • a corrosion protection insert which consists of a cast body which is pressed or shrunk into the tubular insert made of sheet steel (DE-A 2 948 864).
  • the invention is based on the object, while maintaining the above construction principle, to improve a heating gas flue of the type mentioned in that heating boilers provided with such trains, taking into account the corrosion protection requirements, can also be operated as low-temperature boilers with a sliding temperature and ensure that in certain areas there are different heat transfers.
  • This object is achieved with a heating gas flue of the type mentioned according to the invention by the features stated in the characterizing part of the main claim.
  • Advantageous further developments result from the subclaims.
  • U-shaped profiles are known from DE-A 15 01 676 and 20 25 472, but these profiles form the wall itself in the boilers in question, which separates the water-carrying from the gas-carrying space.
  • the reason for the design of the heating gas flues according to the invention was the aforementioned limits, this should not rule out that the solution principle according to the invention cannot also be used for heating boilers with smaller output ranges.
  • the design principle according to the invention can also be used not only for trains which have only a water-cooled wall, but also for trains which have water-cooled walls on the opposite side.
  • the profiles are used on the one hand to form the heating gas flues, but on the other hand their webs placed on the water-carrying wall simultaneously form a largely condensation-preventing double wall on the water-carrying draft wall, wherein, as will be explained in more detail, a specifically metered heat transfer to the wall takes place.
  • a specifically metered heat transfer to the wall takes place. which also has the effect during start-up processes during operation, particularly in the low-temperature area of the boiler, that the areas lying towards the fume cupboard side can heat up more quickly because of the lower heat transfer there, which counteracts or largely prevents the accumulation of condensate.
  • the draft wall is rounded to form a tube or partial tube and closed with a longitudinal weld seam
  • a multitude of heating gas flues with approximately triangular cross sections are created around the pot-like combustion chamber to be used later, each alternating with their distal base points against the combustion chamber and are directed against the wall.
  • the rear cover 25 is provided with a flue gas outlet connection 26.
  • the deflection chamber 27 is arranged in the tube formed by the wall on the burner side (burner not shown).
  • the pot-like combustion chamber 28 sits in the free space between the heating gas flues 8, and the flue gas collecting chamber 28 'is located behind it.
  • This boiler structure is not absolutely essential, just as the combustion chamber 28 must be cylindrical and the heating gas flues 8 must be arranged in a ring structure. Possibly.
  • the walls of the combustion chamber can also be designed as water-carrying double walls, the interior of which is connected in a suitable manner to the other interior of the housing 22. This would be the case in which the heating gas flues 8 are delimited on both sides by water-cooled walls 3, 3 '.
  • the sheet metal blanks for the rib profiles 1 look like they can be seen in FIG. 2 before they are deformed into U-profiles.
  • the side slots are used to compensate for thermal expansion, but are not absolutely necessary.
  • annular shell 30 can advantageously be arranged either completely or, as shown, in part freely projecting in the area of the flue gas collecting chamber 28 ', but for which it is essential that its inner edge is welded to the profiles 1, to ensure a flow of heat from the profiles into the shell 30, so that this can also heat up quickly.
  • thermally connected in some areas is to be understood as the slot welding connection described above, but it is also possible, and this is also preferred because of the much lower expenditure, that the base webs 2 with, for example, a tungsten electrode (i.e. without the addition of additional welding material ) to be welded or melted.
  • the attachment of longitudinal welding slots 16 of different sizes and distances can be omitted, and the attachment takes place in such a way that the tacking area or the resulting thermal bridge 5 becomes narrower or smaller from front to back. This can be accomplished easily and simply by means of a correspondingly regulated supply of current to the electrode, the weld or tack seam being interrupted in the sense of the different distances of the slots according to FIG. 2.
  • the flow channels of the heating gas flue which are U-shaped in cross section are formed by rectangular profiles 10, i. H. two adjacent profiles 10 delimit a single channel.
  • T-shaped profiles 11 according to FIG. 11 U-profiles can also be arranged at a distance from one another, the free surfaces of the wall 3 being covered with correspondingly wide intermediate webs 12 in order to avoid this Maintain double wall principle in all areas.
  • 7, 8 are advantageously provided when pressing the profiles in the transition areas 13 of the legs 9 to the webs 2 profile crankings 14, which serve to accommodate the connecting edges 15 of adjacent webs 2 or the intermediate webs 12. This is advantageous in order to prevent arching when welding the webs 2 or the intermediate webs 12.
  • the legs 9 of the profiles 10, 11, which can form the longitudinal ribs 1, as indicated in Fig. 7, at intervals with flag-like outbreaks conditions 19 are provided. 7, 8, the wall of the combustion chamber 28 which is not water-cooled in this case is designated by 3 ′′.
  • the combustion chamber is water-cooled, there is (such boilers are known) an additional water-cooled wall 3 'with respect to the heating gas flue, which are also covered with the profiles described according to the same principle (FIG. 9) .
  • the arrangement can be such that the longitudinal edges 17 of the opposing profiles 10, 11 end approximately in the same intermediate plane or protrude somewhat into the space 18 of the other profiles.
  • an arrangement according to FIG. 9 is advantageously chosen such that the longitudinal edges 17 run closely above the welded points of the heat-conducting bridge 5.
  • legs 9 can also have a common web 2 and the entire profile can also be designed, for example, as an extruded profile with a suitable wall thickness.
  • the heating gas flues are shown in a straight extension, which of course can also be used in this form depending on the structural conditions on the boiler. It should be noted, however, that trains in this design, based on modern boiler designs, generally have more or less curved walls 3 and 3 ', respectively. that is, the exemplary embodiments shown also apply to such curved surfaces.
  • An essential aspect of the entire heating gas train formation is, as described, to a certain extent draining heating gas-carrying areas to the extent that condensate formation is largely prevented, but on the other hand ensures that any condensate deposits are evaporated as quickly as possible when the boiler starts up again. Test boilers provided with such train designs and operated over a longer period of time have shown that these requirements are met absolutely satisfactorily.

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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)
  • Incineration Of Waste (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Gas Burners (AREA)
  • Chimneys And Flues (AREA)

Claims (8)

1. Carneau pour gaz chauds dans des chaudières brûlant du combustible liquide ou gazeux, constitué par une paroi refroidie par de l'eau, dont la partie située du côté de la chambre de combustion est réalisée avec une double paroi et est pourvue d'ailettes longitudinales qui divisent toute la section du carneau en canaux individuels, caractérisé en ce que les ailettes longitudinales sont constituées par des profilés en forme de U, de L ou de T, dont les bases (2) qui s'étendent transversalement par rapport aux branches libres (2), en recouvrant la paroi (3) située du côté de la chambre de combustion, sont disposées appuyées sur cette paroi (3) et soudées sur la paroi (3) dans des zones partielles en établissant une liaison conductrice de la chaleur, telle que les sections de conduction de la chaleur des ponts de conduction de chaleur ainsi formés décroissent dans le sens des gaz brûlés de la chaudière qui correspond au côté d'écoulement du carneau, et en ce qu'il est aménagé sur les bases (2) des profilés (1), afin de constituer des ponts de conduction de chaleur (5) à action étagée des fentes de soudage longitudinales (16) ou des attaches de soudage dépourvues de métal d'apport pour soudures, de longueur décroissante et dont les intervalles mutuels vont en augmentant.
2. Carneau pour gaz chauds selon la revendication 1 caractérisé en ce que les branches libres (9) sont inclinées l'une vers l'autre et sont réalisées avec une inclinaison qui, partant de 0° du côté de l'afflux, va en croissant vers le côté de l'écoulement.
3. Carneau pour gaz chauds selon la revendication 1, caractérisé en ce que les branches libres (9) de chaque profilé en U sont inclinées l'une vers l'autre, de telle sorte que les sections (7) des carneaux pour gaz chauds (8) ainsi constituées sont approximativement triangulaires, aussi bien entre les branches d'un profilé qu'entre les branches (9) de deux profilés voisins.
4. Carneau pour les gaz chauds selon la revendication 1, caractérisé en ce que les profilés en U sont disposés avec un intervalle entre eux correspondant approximativement à la largeur d'un profilé, en ce qu'il est disposé des entretoises (12) dépourvues d'ailettes entre les profilés et en ce que celles-ci sont également reliées au tube dans des zones partielles par des ponts de conduction de chaleur (5) à action étagée.
5. Carneau pour gaz chauds selon la revendication 1 ou 4, caractérisé en ce qu'il est prévu dans la zone de transition (13) entre la chambre (9) et l'entretoise (2) une coudure du profilé (14) et en ce que le bord de raccordement (15) de la base (2) ou de l'entretoise (12) voisine est disposé dans celle-ci.
6. Carneau pour gaz chauds selon une quelconque des revendications 1 à 6, caractérisé en ce que la paroi (3') en regard des parois du carneau (3), refroidi par eau de tous côtés, est également pourvue de profilés d'ailettes (1, 10, 11) appropriés et, le cas échéant, d'entretoises (12).
7. Carneau pour gaz chauds selon la revendication 6 caractérisé en ce que les bords longitudinaux (17) des profilés d'ailettes disposés en regard sont respectivement logés dans l'intervalle (18) des profilés d'ailettes (1) en s'avançant vers l'autre côté.
8. Carneau pour gaz chauds selon la revendication 7, caractérisé en ce que les bords longitudinaux (17) libres des branches (9) qui s'engagent dans les intervalles (18) des profilés d'ailettes (1) respectivement en regard sont disposés au-dessus des soudures (5) des bases (2) et s'étendent jusqu'à leur voisinage immédiat.
EP84102993A 1983-03-21 1984-03-19 Structure du parcours du gaz de chauffage dans une chaudière de chauffage Expired EP0120435B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84102993T ATE38091T1 (de) 1983-03-21 1984-03-19 Heizgaszugausbildung an heizungskesseln.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3310072 1983-03-21
DE3310072A DE3310072C2 (de) 1983-03-21 1983-03-21 Heizgaszugausbildung an Heizungskesseln

Publications (3)

Publication Number Publication Date
EP0120435A2 EP0120435A2 (fr) 1984-10-03
EP0120435A3 EP0120435A3 (en) 1986-01-22
EP0120435B1 true EP0120435B1 (fr) 1988-10-19

Family

ID=6194097

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84102993A Expired EP0120435B1 (fr) 1983-03-21 1984-03-19 Structure du parcours du gaz de chauffage dans une chaudière de chauffage

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EP (1) EP0120435B1 (fr)
AT (1) ATE38091T1 (fr)
DE (2) DE3310072C2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3535341A1 (de) * 1985-10-03 1987-04-09 Viessmann Hans Heizkessel fuer fluessige oder gasfoermige brennstoffe
AT399571B (de) * 1992-02-21 1995-06-26 Windhager Ohg Anton Niedertemperatur-heizkessel für warmwasser-zentralheizungsanlagen u. dgl.
DE4400400A1 (de) * 1994-01-08 1995-07-13 Viessmann Werke Kg Dreizug-Heizkessel
DE19622567A1 (de) * 1996-06-05 1997-12-11 Stahl Und Apparatebau Josef Sc Einsatz für Heizkessel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1501676A1 (de) * 1966-09-05 1969-10-23 Variotherm S A Innenrippenrohr fuer druckgas- oder druckoelbeheizte Heizkessel,insbesondere von Sammelheizungsanlagen
DE1778832A1 (de) * 1968-06-11 1971-08-26 Thyssen Industrie Warmwasserkessel,insbesondere Heizungskessel
DE2852650A1 (de) * 1978-12-06 1980-07-17 Interliz Anstalt Heizkessel fuer oel- bzw. gasfeuerung
DE2856338B2 (de) * 1978-12-27 1981-01-22 Hans 3559 Battenberg Viessmann Heizungskessel für flüssige oder gasförmige Brennstoffe
DE2948864C2 (de) * 1979-12-05 1982-10-14 Hans 3559 Battenberg Vießmann Heizungskessel für die Verbrennung von flüssigen oder gasförmigen Brennstoffen
DE3225762A1 (de) * 1982-07-09 1984-01-12 Hans Dr.h.c. 3559 Battenberg Vießmann Heizungskessel

Also Published As

Publication number Publication date
ATE38091T1 (de) 1988-11-15
DE3310072C2 (de) 1986-12-18
DE3310072A1 (de) 1984-10-04
EP0120435A3 (en) 1986-01-22
DE3474716D1 (en) 1988-11-24
EP0120435A2 (fr) 1984-10-03

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