EP0591563B1 - Chaudière - Google Patents

Chaudière Download PDF

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Publication number
EP0591563B1
EP0591563B1 EP19920116951 EP92116951A EP0591563B1 EP 0591563 B1 EP0591563 B1 EP 0591563B1 EP 19920116951 EP19920116951 EP 19920116951 EP 92116951 A EP92116951 A EP 92116951A EP 0591563 B1 EP0591563 B1 EP 0591563B1
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EP
European Patent Office
Prior art keywords
heating
partition wall
boiler according
hollow body
flue
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
EP19920116951
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German (de)
English (en)
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EP0591563A1 (fr
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.)
Capito & Co Verwaltungsgesellschaft GmbH
Original Assignee
Capito & Co Verwaltungsgesellschaft GmbH
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
Priority to DE4111232A priority Critical patent/DE4111232A1/de
Priority claimed from DE4111232A external-priority patent/DE4111232A1/de
Priority to DE4203849A priority patent/DE4203849A1/de
Priority claimed from DE4203849A external-priority patent/DE4203849A1/de
Application filed by Capito & Co Verwaltungsgesellschaft GmbH filed Critical Capito & Co Verwaltungsgesellschaft GmbH
Priority to DE59208694T priority patent/DE59208694D1/de
Priority to AT92116951T priority patent/ATE155225T1/de
Priority to EP19920116951 priority patent/EP0591563B1/fr
Publication of EP0591563A1 publication Critical patent/EP0591563A1/fr
Publication of EP0591563B1 publication Critical patent/EP0591563B1/fr
Application granted granted Critical
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
    • F24H1/263—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 application relates to a boiler according to the preamble of claim 1. Similar boilers of this type are known.
  • the second and even the third gas passages are repeatedly heated up until they exit the boiler from the hotter ones immediately adjacent, and the heat transfer to the liquid to be heated is thus deteriorated.
  • 1.2.2. The formation of condensation water in the second and in particular in the third passages on the surfaces around which the liquid A to be heated is washed occurs on the entire periphery of the partition between the flue gas and the liquid. It is very difficult to control, if at all, with an acceptable heating output required, if at all. This is particularly true if the size of the outer shell of the boiler (not shown in the drawings) exceeds the length of the entire combustion chamber including the flue gas collection box, so that the latter is completely washed by the cool liquid to be heated. 1.2.3.
  • the published patent application DE 33 44 858 relates to a three-pass boiler with the feature that the third train - separately from the combustion chamber - is guided as a tube or as a tube bundle through the heating medium. It has the following critical points: 2.1. The third train is practically its own combustion chamber and is completely in the cooling medium. The precautions against condensation are therefore difficult to implement. 2.2. The location of the third gas train is fixed. There is no possibility of varying the position to achieve optimal heat transfer in different conditions of the heating medium room of the boiler. 2.3. The constructive precautions for maintenance (large access door, additional cleaning openings) and the maintenance itself are complex. 2.4. The entire boiler is much larger than a normal boiler with the same heating output. 2.5.
  • the utility model DE-U-9015 265 relates to a boiler that is similar to the boiler of the application. However, it only apparently describes a three-pass boiler combustion chamber (see 3.1.3. And 3.2.1. Of this opinion).
  • the burner pot (7) (claim 1, description on page 7 paragraph 3-4, page 9 paragraph 3) 3.1.1.1 extends at its chimney end preferably up to a gap remaining around the width "s" to a somehow separately separately attached burner chamber cover (10) or 3.1.1.2 extends up to this burner chamber cover as long as the ribs and then instead of the gap has corresponding flue gas through openings .
  • the third train is formed by "U-shaped flue gas connecting lines" (25) (claims 1-8, description page 5 paragraph 1-5, page 8 paragraph 3, page 9 paragraph 4).
  • 3.1.3.1 The flue gas-like connection between the flue gas storage chamber (24) and the flue gas outlet chamber (23) is formed by "lines", "U-shaped channels”.
  • 3.1.3.2 The number of connections ranges from “at least one” to “several” to "preferably four”.
  • the positioning of the lines is distributed as evenly as possible in the combustion chamber frame between the ribs attached there, in “at least essentially the same angular division". They should “penetrate the heating surface formed by the ribs ".
  • the invention has for its object to use a simple, corrosion-proof and easy to maintain third heating gas train to run the heating gases from the burner side to the exhaust pipe, to design the second and third heating gas train as optimal heat transfer surfaces and particularly to achieve environmentally friendly exhaust gas values (including a particularly low NO x content), a compact design, particularly suitable for heating systems with a large amount of heating water, and particularly economical manufacture.
  • a boiler is shown schematically, through which the heating gases generated in the burner flow according to arrows I, II and III in three passes.
  • the three trains are cylindrical in shape, namely the first heating gas train (5) is formed by a hollow body (3) surrounding the burner flame at a distance. From this, the heating gases enter the second heating gas train (2) on a baffle wall (4), which immediately surrounds the hollow body (3) in an annular gap on all sides.
  • this second heating gas train is provided with slotted heat transfer ribs (12), the teeth of which are inclined and / or interlocked with the heating gas flow (PA 9).
  • the heating gases are then (preferably) directed downwards into the third heating gas train (10), which is designed as follows: 5.2.1. A smaller part of the space of the second heating gas train (2), which is sufficient for the flow of the heating gases, is divided by a partition (9). This partition is designed and installed in such a way that it forms a third train (10) for the heating gases in a single compact channel (PAe 1-4). 5.2.1.1. This channel leads into the exhaust gas room (7) (PA 5). 5.2.1.2. It has only a fraction of the cross section of the second train (2) (usually 20% - 30%), and only a correspondingly small part of the heating gas of the second train (2) touches the common partition (9). 5.2.1.3.
  • the third heating gas train (10) is positioned (PA 4) at the point of the overall combustion chamber periphery (1) which is most advantageous for the overall circumstances.
  • the cross section of the third heating gas train can be varied in a simple manner.
  • the attachment of slotted heat transfer fins (12) in the third heating gas train (10) on the surface carrying the heating medium with the teeth inclined in reverse in accordance with the reversal of the gas train there and / or their entanglement bring about very effective heat extraction shortly before the transition into the exhaust gas - Pipe (8) (PAe 9 and 10).
  • PAe 9 and 10 the exhaust gas - Pipe
  • the partition (9) 5.2.2.1. is shaped outwards parallel to the heat transfer surface (1) (13) (PA 3). This means that the size of the "hot combustion chamber” (3) is fully retained and the optimal combustion is not impaired. 5.2.2.2. If necessary, the partition (9) is simply additionally provided with an insulating layer. 5.2.2.3.
  • the side of the dividing wall facing the "hot combustion chamber” (3) or another location of the overall combustion chamber or the hollow body (3) has approximately 4 to 6 spacers (13) (PA 6), which are a distance between the "hot combustion chamber” and the partition (9) from about 5 to 20 mm. The resulting space is used for heating gas circulation from the second heating gas train.
  • the attached spacing devices (13) thus serve to further improve the use of the heating gas heat.
  • Guide ribs (13) can also serve as spacers and at the same time guide the exhaust gas in the desired manner. They are applied at an angle of, for example, approx. 30 ° to the second heating gas train (PA 7).
  • the partition wall can also be designed to carry the heating medium for cooling, but this would remove the advantages of being removable and of maintaining the full size of the "hot combustion chamber", aside from the high production costs. 5.2.2.5.
  • the partition (9) is provided on its side facing the baffle (4) with a baffle plate (16), which represents the center of the baffle (4) and forms the entire baffle (4) with other impact stones (PA 14).
  • the "hot combustion chamber” (3) 5.3.1. receives an extension (15) on the side facing the partition (9) up to the baffle (4) (PA 12). This extension also covers that part of the partition wall which is not yet covered by the "hot combustion chamber”. The entire partition (9) is thus protected against radiant heat, and a cooling gas flow is formed between the cover and the partition (with the aid of the above-mentioned spacing devices (13)). 5.3.2. To further improve the heating gas flow, an additional baffle plate can be attached to the extension (15) at its end, which is attached at a right or larger angle to the extension and the surface of which is aerodynamically produced. 5.3.3.
  • the safety bolts (11) + (14) for locking the partition (9) have the effect that the "hot combustion chamber” (3) can only be inserted when the partition is correctly inserted, and that the partition does not malfunction after the combustion chamber has been inserted is fixed (PA 8).
  • the construction according to the invention has only three to no weld gas in contact with the heating gas / heating medium.
  • the exhaust gas space (7) is very small, only touches a small section of the periphery of the overall combustion chamber (1) and is equipped with heat transfer fins (PA 10).
  • the present invention has the following effects: 6.1.
  • the third heating gas train - in addition to the second heating gas train - represents a full-fledged heat transfer surface. This heat transfer surface is brought to optimum effect by applying slotted heat transfer ribs (12).
  • the entire combustion chamber up to the end of the exhaust pipe is a compact unit. 6.4. Due to the smaller cross section of the third exhaust gas train, the flow rate of the cooled gas is greatly increased and thus the risk of deposits is prevented. 6.5.
  • the train of the boiler and the flue gas temperature can be easily influenced according to the requirements by the type of construction and by the variability, especially of the third train of heating gas. 6.6. Due to the design, the formation of condensate is easy to control and the risk of corrosion is minimal. 6.7. The risk of a leak due to production errors is minimal. 6.8.
  • the above characteristics of the boiler also make it particularly suitable for constructions with a larger heating water tank, in which the entire combustion chamber, including the flue gas chamber (7), is surrounded by the heating medium. 6.9. For maintenance or possible repairs, this boiler is freely accessible anywhere through the large door on the burner side (6) after removing two parts ("hot combustion chamber" (3) and partition (9) with baffle plate (16)). 6.10. The manufacturing costs are low. 6.11. Due to the early heat dissipation on the flame, the construction according to the invention offers a minimization of pollutant formation.

Claims (14)

  1. Chaudière de chauffage prévue pour des combustibles liquides ou gazeux et présentant trois carneaux cylindriques pour gaz de chauffage, dont le premier (5) est formé d'un corps creux (3) enveloppant la flamme à une certaine distance, dont les gaz de chauffage s'écoulent, après renvoi par une chicane (4) dans le deuxième carneau (2) qui enveloppe directement le corps creux (3) et de là, après un nouveau renvoi sur le côté à brûleur (6) de la chaudière, pénètrent dans le troisième carneau (10) pour gaz de chauffage, ce troisième carneau (10) étant constitué d'un canal unique séparé du deuxième carneau (2) par une cloison séparatrice (9) et présentant une géométrie et des inserts appropriés pour transmettre la chaleur au fluide caloporteur, et la cloison séparatrice (9) et le corps creux (3) étant maintenus à une certaine distance l'un de l'autre.
  2. Chaudière de chauffage selon la revendication 1, caractérisée en ce que la chambre de combustion (1) présente une section de préférence ronde ou aussi une section ovale ou rectangulaire avec des pièces conformées en conséquence, par exemple un corps creux (3) ou une cloison séparatrice (9) ou un disque-chicane (16).
  3. Chaudière de chauffage selon les revendications 1 et 2, caractérisée en ce que la cloison séparatrice (9) a été, dans sa partie médiane, conformée pour suivre la forme du corps creux (3).
  4. Chaudière de chauffage selon les revendications 1 à 3, caractérisée en ce que la cloison séparatrice (9) est disposée en-dessous du, au-dessus du, latéralement au premier carneau à gaz de chauffage, ou dans une position quelconque à l'intérieur du deuxième carneau (2) à gaz de chauffage.
  5. Chaudière de chauffage selon les revendications 1 à 4, caractérisée en ce que la cloison séparatrice (9) pénètre jusque dans le compartiment à gaz brûlés (7) lequel englobe la périphérie de la chambre de combustion complète (1) à hauteur de la circonférence du troisième carneau.
  6. Chaudière de chauffage selon les revendications 1 à 5, caractérisée en ce que des écarteurs (13) sont fixés de préférence sur la cloison séparatrice (9) sur le côté du deuxième carneau à gaz de chauffage ou en un autre endroit de la chambre de combustion, ou en ce que par conformation particulière du corps creux en cet endroit des précautions ont été prises pour créer un écart compris entre 5 et 20 millimètres environ entre la cloison séparatrice et le corps creux.
  7. Chaudière de chauffage selon la revendication 6, caractérisée en ce que les écarteurs (13) sont conformés en nervures directrices dont le tracé forme un angle d'environ 30° par rapport à la direction du deuxième carreau à gaz de chauffage.
  8. Chaudière de chauffage selon les revendications 1 à 7, caractérisée en ce que la cloison séparatrice (9) est amovible, qu'elle est fixée par des boulons de retenue (11) et par le corps creux en applique (3), contre l'extrémité regardant le côté brûleur (6), et en ce qu'à l'autre extrémité elle est retenue par un autre boulon (14) qui empêche son glissement excessif.
  9. Chaudière de chauffage selon les revendications 1 à 8, caractérisée en ce que le deuxième carreau à gaz de chauffage (2) et le troisième carreau à gaz de chauffage (10) sont équipés de nervures fendues (12) chargées de transmettre la chaleur et dont la denture est inclinée dans le sens opposé à celui d'écoulement des gaz et/ou est conformée en zigzag.
  10. Chaudière de chauffage selon la revendication 9, caractérisée en ce que l'inclinaison des dents des nervures chargées de transmettre la chaleur dans le troisième carneau à gaz de chauffage sont inclinées dans un sens opposé aux dents des nervures chargées de transmettre la chaleur dans le deuxième carneau à gaz de chauffage, et en ce que ces nervure pénètrent jusque dans le compartiment à gaz brûlés (7).
  11. Chaudière de chauffage selon les revendications 9 ou 10, caractérisée en ce que dans le troisième carneau à gaz de chauffage (10) quelques (par exemple quatre) nervures chargées de transmettre la chaleur ont été allongées et en ce que ce compartiment est fermé par des verrouillages.
  12. Chaudière de chauffage selon les revendications 1 à 11, caractérisée en ce que le corps creux (3) situé du côté regardant la cloison séparatrice (9) présente une prolongation (15) qui, avec le corps creux (3), recouvre toute la cloison séparatrice à une certaine distance.
  13. Chaudière de chauffage selon la revendication 12, caractérisée en ce que contre l'extrémité de la prolongation (15) située devant la cloison séparatrice (4) est fixé un disque-chicane formant un angle à 90° ou plus par rapport à la prolongation et que sa surface a été réalisée favorable à l'écoulement.
  14. Chaudière de chauffage selon les revendications 1 à 13, caractérisée en ce qu'un disque-chicane (16) est fixé contre la cloison séparatrice (9) et qu'avec d'autres blocs-chicanes il forme l'ensemble de la cloison séparatrice (4).
EP19920116951 1991-04-04 1992-10-03 Chaudière Expired - Lifetime EP0591563B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE4111232A DE4111232A1 (de) 1991-04-04 1991-04-08 Heizkessel fuer fluessige und gasfoermige brennstoffe
DE4203849A DE4203849A1 (de) 1991-04-08 1992-02-10 Heizkessel fuer fluessige und gasfoermige brennstoffe
DE59208694T DE59208694D1 (de) 1992-10-03 1992-10-03 Heizkessel
AT92116951T ATE155225T1 (de) 1992-10-03 1992-10-03 Heizkessel
EP19920116951 EP0591563B1 (fr) 1991-04-04 1992-10-03 Chaudière

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4110920 1991-04-04
DE4111232A DE4111232A1 (de) 1991-04-04 1991-04-08 Heizkessel fuer fluessige und gasfoermige brennstoffe
DE4203849A DE4203849A1 (de) 1991-04-08 1992-02-10 Heizkessel fuer fluessige und gasfoermige brennstoffe
EP19920116951 EP0591563B1 (fr) 1991-04-04 1992-10-03 Chaudière

Publications (2)

Publication Number Publication Date
EP0591563A1 EP0591563A1 (fr) 1994-04-13
EP0591563B1 true EP0591563B1 (fr) 1997-07-09

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ID=27435164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920116951 Expired - Lifetime EP0591563B1 (fr) 1991-04-04 1992-10-03 Chaudière

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EP (1) EP0591563B1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE441778B (sv) * 1984-03-30 1985-11-04 Ctc Ab Vermepanna med ett cylindriskt vattenmagasin
DE8803410U1 (fr) * 1988-03-14 1988-07-28 Carl Capito Gmbh, 5908 Neunkirchen, De
DE9015265U1 (fr) * 1990-11-03 1991-01-17 Sbs B. Schmidt Gmbh & Co., 4402 Greven, De
DE4111232A1 (de) * 1991-04-04 1992-10-15 Capito Gmbh & Co Verwaltungsge Heizkessel fuer fluessige und gasfoermige brennstoffe

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Publication number Publication date
EP0591563A1 (fr) 1994-04-13

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