EP0321667B1 - Chaudière - Google Patents

Chaudière Download PDF

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Publication number
EP0321667B1
EP0321667B1 EP88116900A EP88116900A EP0321667B1 EP 0321667 B1 EP0321667 B1 EP 0321667B1 EP 88116900 A EP88116900 A EP 88116900A EP 88116900 A EP88116900 A EP 88116900A EP 0321667 B1 EP0321667 B1 EP 0321667B1
Authority
EP
European Patent Office
Prior art keywords
wave
pocket
pockets
side wall
corrugated
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
EP88116900A
Other languages
German (de)
English (en)
Other versions
EP0321667A1 (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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT88116900T priority Critical patent/ATE74194T1/de
Publication of EP0321667A1 publication Critical patent/EP0321667A1/fr
Application granted granted Critical
Publication of EP0321667B1 publication Critical patent/EP0321667B1/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
    • F24H1/287—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 with the fire tubes arranged in line with the combustion chamber
    • 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
    • F28D9/0037—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 conduits for the other heat-exchange medium also being formed by paired plates touching each other

Definitions

  • the invention relates to a boiler according to the preamble of claim 1.
  • Such boilers with hot gas draw pockets in the water-carrying interior of the boiler housing are known, for example, according to EP-A-230 594.
  • the connection of the combustion chamber to the heating gas extractor or to the flue gas collecting chamber with the extracting heating gas pockets are either carried out between the combustion chamber and the extraction area, but are guided or arranged separately, or such pockets are combined to form a pocket block, which is then arranged as a whole between the combustion chamber and the extraction area .
  • hot gas draw pockets it is known to provide the side walls with rib embossing in order to intensify the heat transfer.
  • the pockets of boilers equipped with them only insufficiently meet the complex requirements that must be taken into account. These requirements are simple manufacture and simple integration into the boiler, large heat exchange surface with respect to the respective boiler, the smallest possible overall dimensions of the pockets, good swirling of the heating gases with acceptable flow resistance and pressure stability against water pressure.
  • the invention is therefore based on the object to improve a boiler of the generic type with respect to the pockets in such a way that with a simple manufacture and easy integration of the pockets into the boiler housing and with the greatest possible surface structure in the form of wave embossing and the associated increase in transmission area, in particular the lowest possible flow resistance on the gas side should be achievable in the external pressure-stable pocket to be connected with the proviso that with the possibility of swirling the entire gas volume flowing through, the greater part of the heating gases flowing through should be able to be exchanged in the central plane of the pocket.
  • the pockets of the boiler according to the invention are not readily comparable, since such heat exchangers, as far as is known, are only formed from several stacked plates, while in the present case the gas-carrying pockets, even if they are combined as a pocket block, only the water-carrying ones Pass through the space in the boiler housing as separate heating gas flues.
  • the design of the boiler according to the invention leads to an extraordinarily favorable effect with regard to a reduction of the flow resistance with at least a comparable heat transfer performance.
  • this is due to the fact that some of the heating gases find their way directly from the inflow to the outflow side, but there are still turbulence areas when passing through the intersecting ducts or wave embossments, and another part of the heating gases with the same turbulence effect also and inevitably the direction of flow in the edge areas of the train bag change while changing the flow level.
  • the heating gas draw pocket is designed in such a way that the greater part of the wave embossings occupies two thirds and the smaller part a third the inflow or outflow opening of the pocket.
  • the greater part of the wave embossing which takes up the two-third division, runs smoothly continuously from the inflow opening to the outflow opening of the pocket, while the other part of the wave embossing, which inevitably has the series of longitudinal extensions, practically with respect to the side walls the heating gas draft pockets forms a total of triangular surfaces, so that the heating gas part flowing therein changes its direction in the respective edge region of the heating gas draft pocket and also has to change the "flow level".
  • the hot gas train pocket consists of two side walls 1 with shape and course-identical wave embossments 3, which are mirrored together with wave support on the opposite and hot gas side at the intersection points 5 and gas and. Along their longitudinal edges 4 bent in the flow direction are connected to one another in a liquid-tight manner.
  • the wave embossments 3 are embossed into the side walls 1 such that the wave embossments 3 end shortly before the edges of the inflow and outflow openings 7, 8 of the pocket 2. This simplifies the installation of such pockets in the bottom wall 14 provided with corresponding openings in a combustion chamber, not shown here, as shown in FIG. 6.
  • the heating gas draw pocket 2 is advantageously designed in such a way that in the area of the longitudinal edges 4 no wave embossments 3 are provided in both side edges, which results in non-inclined flow channels 16 running in the flow direction, in which the wave embossments 3 of the Open out parts II, start from these.
  • This measure also reduces the flow resistance in the edge regions without, as has been shown, significantly impairing the aforementioned change in direction of the heating gases flowing there and the change in the "flow levels".
  • the corrugated embossments 3 likewise result in corresponding cross supports of the side walls 1 evenly distributed over the entire surface, an extraordinarily stable structure is created, so that relatively thin, for example stainless steel sheet can be used for the side walls 1.
  • the dimensioning of parts I and II is advantageously provided such that, based on the overall width of the pocket, the parts I of each plate occupy two thirds and the part II a third of the pocket width.
  • the fields of the wave embossing 3 can, unless an appropriately large embossing tool is used, be produced with the same embossing tool that is only the size of one embossing field, since the other field has the same wave embossing profile.
  • the two halves of the sheet metal blank 11, which represent the side walls 1, are folded or bent along the dash-dotted line, as a result of which the corrugated embossments 3 come to lie on the other half with an opposite slope.
  • the edges 6 surrounding the embossing fields, which form the narrow side walls 6 in the finished and closed state of the pocket are dimensioned such that their width corresponds approximately to a wave depth T.
  • the middle, unembossed stripe has twice the width TT and the two unembossed stripes, the inflow and outflow opening on the finished pocket 7, 8 form, also have a width in the size of about a wave depth.
  • FIG. 8 different arrangement options for the heating gas draw pockets 2 in the water-carrying housing 18 of different types of boilers are shown in FIG. 8, wherein the hot gas draw pockets 2 are grouped together separately or as a block, each extending from the bottom 14 of the combustion chamber 19 to the exhaust area 20.

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  • 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)
  • Cookers (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Incineration Of Waste (AREA)

Claims (5)

  1. Chaudière de chauffage constituée par un bâti conducteur d'eau dans lequel est placée une chambre de combustion (19) à partir de la zone terminale de laquelle des poches de carneau de gaz de chauffage (2) de section de type oblong sont menées vers une chambre collectrice de gaz brûlés (20) avec décharge du gaz de fumée, les poches (2) d'allure parallèle ou approximativement parallèle étant placées en étant espacées les unes des autres et les deux plus grandes parois latérales voisines de chaque poche (2) étant pourvues d'ondulations frappées de forme et d'allure identique, orientées des plans des parois latérales vers l'intérieur des poches (2) et s'étendant tout droit, ondulations qui sont inclinées par rapport aux bords longidutinaux des poches (2) mais qui sont placées dans la paroi latérale respective en étant opposées aux ondulations frappées (3) de l'autre paroi latérale, les ondulations frappées (3) se touchant de plus aux points d'intersection et se terminant devant les parois latérales étroites et devant l'ouverture d'afflux et de décharge (7, 8) de chaque poche (2) avec un écart qui correspond à au moins une profondeur d'ondulation, caractérisée en ce que le nombre des ondulations frappées (3) dans une paroi latérale, qui s'étendent avec toute leur longueur de l'ouverture d'afllux vers l'ouverture de décharge (7, 8) de chaque poche (2), est plus grand que le nombre des ondulations frappées plus courtes et qu'une partie (1) des ondulations frappées (3), qui sont inclinées par rapport à la ligne du milieu longitudinal de passage (14'), s'étend de l'ouverture d'afflux (7) en continu jusqu'à l'ouverture de décharge (8) de la poche (2) tandis que la partie restante (II), inclinée dans le même sens, de l'une des parois latérales (I), qui commence à l'ouverture d'afflux (7) et qui se termine au bord longitudinal (4) de la poche et l'autre partie (II) de l'autre paroi latérale (1) qui commence au bord longitudinal (4) et qui débouche à l'ouverture de décharge (8) présentent des longueurs (L) correspondantes décroissantes vers les bords longitudinaux (4) dans la zone desquels ces ondulations se terminent.
  2. Chaudière de chauffage selon la revendication 1, caractérisée en ce que la poche (2) est formée par une pièce découpée en tôle (11) qui contient dans respectivement une moitié les ondulations frappées (3) estampées vers l'un des côtés et que les deux moitiés de la pièce découpée en tôle (11) sont pliées l'une contre l'autre en parallèle et que les bords longitudinaux de la pièce découpée en tôle (11) sont reliés l'un à l'autre en étant étanches au gaz et au liquide par une soudure longitudinale (12).
  3. Chaudière de chauffage selon la revendication 1 ou 2, caractérisée en ce que les poches (2) forment les prolongations plus courtes des grandes parois latérales (1) pourvues des ondulations frappées (3) au moyen de talons de jonction (13) qui font partie de la pièce découpée en tôle (11) et qu'elles sont réunies en un bloc de poches.
  4. Chaudière de chauffage selon l'une des revendications 1 à 3, caractérisée en ce que la plus grande partie (I) des ondulations frappées (3) prend deux tiers de l'ouverture d'afflux ou de décharge (7, 8) et la plus petite partie (II) un tiers.
  5. Chaudière de chauffage selon l'une des revendications 1 à 4, caractérisée en ce que l'angle d'inclinaison (β) entre les ondulations frappées (3) de l'une des parois latérales et les ondulations frappées (3) de l'autre paroi latérale (1) peut être de 170° maximum, de préférence de 120 à 150°.
EP88116900A 1987-12-22 1988-10-12 Chaudière Expired - Lifetime EP0321667B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88116900T ATE74194T1 (de) 1987-12-22 1988-10-12 Heizkessel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3743478 1987-12-22
DE3743478 1987-12-22

Publications (2)

Publication Number Publication Date
EP0321667A1 EP0321667A1 (fr) 1989-06-28
EP0321667B1 true EP0321667B1 (fr) 1992-03-25

Family

ID=6343227

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88116900A Expired - Lifetime EP0321667B1 (fr) 1987-12-22 1988-10-12 Chaudière

Country Status (4)

Country Link
EP (1) EP0321667B1 (fr)
AT (1) ATE74194T1 (fr)
DE (1) DE3869580D1 (fr)
ES (1) ES2030818T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4022730A1 (de) * 1990-07-17 1992-01-23 Viessmann Hans Heizgaszugtasche
DE9309771U1 (de) * 1993-07-01 1993-08-26 Viessmann Werke Gmbh & Co, 35108 Allendorf Heizgaszug
AU1267101A (en) * 1999-09-03 2001-04-10 Ryll Heizungs Gmbh Heat exchanger
EP1085273A1 (fr) * 1999-09-14 2001-03-21 FPL Wärmerückgewinnung-Lüftung GmbH Dispositif et méthode pour échange de chaleur
ES2220635T3 (es) * 2001-07-26 2004-12-16 Gea Ecoflex Gmbh Evaporador de placas.
AT12584U1 (de) * 2011-03-08 2012-08-15 Lasco Heutechnik Gmbh Wärmetauscher für eine mobile festbrennstofffeuerungsanlage
DE202014105819U1 (de) 2013-12-09 2015-03-10 Viessmann Werke Gmbh & Co Kg Heizkessel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR998449A (fr) * 1945-10-03 1952-01-18 Mode de construction pour échangeur de chaleur
DE1751464A1 (de) * 1967-06-08 1971-07-15 Air Preheater Waermetauscher-Baugruppe
GB1568140A (en) * 1977-12-31 1980-05-29 United Stirling Ab & Co Plate heat-exchanger
EP0016915B1 (fr) * 1979-03-16 1983-01-26 Buderus Aktiengesellschaft Chaudière de chauffage central
DE8601896U1 (de) * 1986-01-25 1986-04-03 Vießmann, Hans, Dr.h.c., 3559 Battenberg Kondensatheizkessel

Also Published As

Publication number Publication date
DE3869580D1 (de) 1992-04-30
EP0321667A1 (fr) 1989-06-28
ATE74194T1 (de) 1992-04-15
ES2030818T3 (es) 1992-11-16

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