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EP0031571B1 - Chaudière de chauffage - Google Patents

Chaudière de chauffage Download PDF

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Publication number
EP0031571B1
EP0031571B1 EP80108096A EP80108096A EP0031571B1 EP 0031571 B1 EP0031571 B1 EP 0031571B1 EP 80108096 A EP80108096 A EP 80108096A EP 80108096 A EP80108096 A EP 80108096A EP 0031571 B1 EP0031571 B1 EP 0031571B1
Authority
EP
European Patent Office
Prior art keywords
ribs
boiler
heating
flue gas
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
Application number
EP80108096A
Other languages
German (de)
English (en)
Other versions
EP0031571A1 (fr
Inventor
Horst Burgdorff
Friedhelm Salzmann
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.)
Braukmann Kessel GmbH
Original Assignee
Braukmann Kessel 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
Application filed by Braukmann Kessel GmbH filed Critical Braukmann Kessel GmbH
Priority to AT80108096T priority Critical patent/ATE5438T1/de
Publication of EP0031571A1 publication Critical patent/EP0031571A1/fr
Application granted granted Critical
Publication of EP0031571B1 publication Critical patent/EP0031571B1/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
    • F24H1/28—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
    • F24H1/285—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 alongside the combustion chamber
    • 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
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0026—Guiding means in combustion gas channels

Definitions

  • the invention relates to a heating boiler in which a horizontal combustion chamber closed by an end wall for the arrangement of a gas or oil burner is designed as a cast iron body integral with heating gas trains, the heating gas trains provided with ribs and narrowing in the flow direction of the flue gases parallel to arranged in the combustion chamber and connected to a flue gas nozzle via a flue gas collector.
  • Boilers are designed for heating domestic water. Controlling the relevant boiler temperatures results in a critical limit value of around 45 ° C, since falling below this temperature leads to the separation of acidic condensate from the flue gases and thus causes the boiler walls to corrode. In order to obtain a favorable use of the energy used, however, the boiler temperatures should be lower than this critical limit. Suitable countermeasures must then be taken to prevent such corroding of the boiler walls by the acidic condensate of the flue gases.
  • the heating gas flues are connected to a front flue gas chamber, in which the flue gases flowing from the combustion chamber are deflected into the heating gas flues, changing their flow direction. Because the redirection of the flue gases takes place in an uncontrolled manner in this front flue gas chamber, there is a more or less large build-up of flue gases, especially at the inlet cross-sections of the heating gas flues, which promotes condensate formation at this point with a correspondingly increased risk of the boiler walls corroding.
  • the invention as characterized in the claims, achieves the object of providing a heating boiler which can operate at low boiler temperatures without the risk of the formation of acidic condensate from the flue gases.
  • the advantages achieved by the invention lie essentially in the fact that the design of the combustion chamber which is closed with an end wall makes it possible to provide a cavity which surrounds the combustion chamber and which can be used for filling purposes with cooling water for direct cooling of the combustion chamber.
  • the complete equalization of the flue gas flow which can be achieved primarily with the course of the fins and their dimensions, also results in completely constant heat dissipation conditions along the entire flow path, so that any local increased condensate formation is suppressed with this and with the avoidance of local congestion effects for the flue gases and therefore practically no danger for there is corroding of the boiler walls.
  • heating boilers (DE-B-1 679 396) to also form a horizontal combustion chamber, which is provided for the arrangement of a gas or oil burner, closed by an end wall.
  • a front overflow chamber in which water-finned tubes aligned parallel to the flue gas flow can be arranged, which, like the combustion chamber, have an oval or also round cross-section that is constantly narrowing in the flow direction of the flue gases, are transverse to the flue gas flow Aligned and thus a series of individual baffles resulting ribs are provided, which prevent a uniformity of the flue gas flow.
  • the individual heating gas flues which are also connected to an overflow chamber, have a rectangular flow cross section which is invariable along the entire flow path of the flue gases and are provided with ribs on the side surfaces of the cross-section which are longer than that
  • the axis of the combustion chamber is parallel to the direction of flow of the flue gases.
  • the heating boiler which is designed as a one-piece cast iron body 1, has a casting skin enriched with silicon and is provided with a horizontal combustion chamber 2, the volume of which is substantially equal to the flame volume of an oil arranged in the combustion chamber with the attachment to a pivotably arranged boiler door (not shown). or gas burner.
  • the axial length of this combustion chamber 2 corresponds essentially to the depth of the cast iron body 1.
  • the combustion chamber 2 is closed by an end wall 3 on which a spiral ribbing 4 is formed, which results in a swirl flow of the flue gases which is concentric with the longitudinal axis of the combustion chamber.
  • the remaining area of the inner wall of the combustion chamber 2 is smooth.
  • a front wall 5 of the cast iron body 1 is provided with mutually parallel, equally spaced ribs 6, which have a rectangular full cross section exhibit.
  • the height of these ribs 6 is equal to their double spacing, so that, taking into account the boundary layer thickness that is relevant for the flue gases, there is no impairment of the flue gas flow and, at the same time, an optimal heat exchange is obtained.
  • the cast iron body 1 further comprises four heating gas flues 7 arranged parallel to the combustion chamber 2, all of which have an essentially rectangular flow cross section and narrow in the direction of flow of the flue gases.
  • each heating gas flue 7 is aligned horizontally and the lower boundary wall 9 has an incline falling towards the front wall 5, so that the outlet cross section of each heating gas flue 7 is smaller than its inlet cross section.
  • the heating gas flues 7 end on a rear wall 12 of the cast iron body 1 which is provided with ribs 11 and which is designed as a flue gas collector. Because the temperature of the flue gases on this rear wall 12 is lower than on the front wall 5, the ribs 11 are arranged at a distance different from the ribs 6 of the front wall 5 while maintaining the same ratio to the rib height. The height of the ribs 6 and the ribs 11 on the front wall 5 and on the rear wall 12 and also the height of the ribs 10 of the heating gas flues 7 is twice their distance.
  • a flue gas nozzle (not shown) is also connected to the flue gas collector formed by the rear wall 12 of the cast iron body 1. Furthermore, at the lower end of the cast iron body 1 there is also a water connection 13 for the supply of cooling water into the boiler cavity and at the upper end two further connections 14 and 15 for connection to the feed and return system for the domestic water.

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)
  • Incineration Of Waste (AREA)

Claims (5)

1. Chaudière dans laquelle une chambre de combustion (2) horizontale, obturée par une paroi frontale se présente sous forme d'un corps en fonte (1) en une seule pièce muni de carneaux de gaz chaud (7) et destiné à recevoir un brûleur à gaz ou à mazout, les carneaux de gaz chaud (7) munis d'ailettes (10) et se rétrécissant dans la direction de circulation des gaz de fumée étant disposés parallèlement à la chambre de combustion (2) et étant reliés par l'intermédiaire d'un collecteur de gaz de fumées à une buse de fumée, caractérisée en ce que les carneaux de gaz chaud (7) et leurs ailettes (10) qui sont disposées à distances égales en direction axiale présentent, dans la direction des gaz de fumée, un rétrécissement qui participe à l'uniformisation du courant de gaz de fumée en fonction de la diminution de volume due au refroidissement continu, et en ce que, également, la paroi avant (5) et la paroi arrière (12) de la chaudière sont munies d'ailettes (6, 11) disposées à distances égales, la hauteur de toutes les ailettes (6, 10, 11) étant égale à leur double distance et la paroi arrière (12) se présentant sous forme de collecteur de gaz de fumée.
2. Chaudière suivant la revendication 1, caractérisée en ce que le corps en fonte (1) présente une peau de fonderie enrichie en silicium.
3. Chaudière suivant la revendication 1 ou 2, caractérisée en ce que les carneaux (7) présentent une section de passage substantiellement rectangulaire, dont les parois latérales les plus longues, en section, comportent les ailettes (10) disposées dans la direction de circulation de gaz de fumée.
4. Chaudière suivant l'une quelconque des revendications 1 à 3, caractérisée en ce que le fond (9) des carneaux de gaz chaud (7) présente une inclinaison en tombant vers la paroi avant (5).
5. Chaudière suivant l'une quelconque des revendications 1 à 4, caractérisée en ce que les ailettes (11 ) de la paroi arrière (12) sont disposées selon une distance différente de celle des ailettes (6) de la paroi avant (5).
EP80108096A 1979-12-28 1980-12-22 Chaudière de chauffage Expired EP0031571B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80108096T ATE5438T1 (de) 1979-12-28 1980-12-22 Heizungskessel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2952564A DE2952564C1 (de) 1979-12-28 1979-12-28 Heizungskessel
DE2952564 1979-12-28

Publications (2)

Publication Number Publication Date
EP0031571A1 EP0031571A1 (fr) 1981-07-08
EP0031571B1 true EP0031571B1 (fr) 1983-11-23

Family

ID=6089776

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80108096A Expired EP0031571B1 (fr) 1979-12-28 1980-12-22 Chaudière de chauffage

Country Status (3)

Country Link
EP (1) EP0031571B1 (fr)
AT (1) ATE5438T1 (fr)
DE (1) DE2952564C1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4400400A1 (de) * 1994-01-08 1995-07-13 Viessmann Werke Kg Dreizug-Heizkessel
EP0745813A3 (fr) * 1995-05-31 1997-12-29 VIESSMANN WERKE GmbH & CO. Echangeur de chaleur, en particulier pour chaudière

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1508762A1 (de) * 1966-07-01 1970-03-05 Arnold Hellmut Verfahren zum Herstellen von Edelstahlformgussteilen und Edelstahlformgussteile
DE1804020A1 (de) * 1968-10-19 1970-04-30 Variotherm S A Heizkessel fuer Warmwasserheizung
FR2198610A5 (fr) * 1972-08-31 1974-03-29 Mimric Guy
DE1679396B2 (de) * 1967-01-12 1976-08-12 Gustav Ospelt, Hovaltwerk Ag, Vaduz Heizungskessel fuer fluessige oder gasfoermige brennstoffe
DE2735353A1 (de) * 1977-08-05 1979-02-08 Hans Viessmann Gliederheizkessel aus guss
DE7914459U1 (de) * 1979-05-18 1979-09-06 Heim, Kurt, 7520 Bruchsal Innenrippenrohr fuer druckgas- oder druckoelbeheizte heizkessel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6803092U (de) * 1968-10-04 1969-02-13 Variotherm S A Fa Heizkessel fuer warmwasserheizungen
DE6900397U (de) * 1969-01-06 1969-05-29 Hovalwerk Ag Ospelt Heizkessel zum verfeuern fluessiger oder gasfoermiger brennstoffe
DE2408500B2 (de) * 1974-02-22 1977-09-15 Karl Schmidt Gmbh, 7107 Neckarsulm Verfahren zur herstellung von aus gusseisen mit kugelgraphit bestehenden bauteilen
DE2645717C3 (de) * 1976-10-09 1979-10-25 Hans 3559 Battenberg Viessmann Heizkessel für flüssige oder gasförmige Brennstoffe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1508762A1 (de) * 1966-07-01 1970-03-05 Arnold Hellmut Verfahren zum Herstellen von Edelstahlformgussteilen und Edelstahlformgussteile
DE1679396B2 (de) * 1967-01-12 1976-08-12 Gustav Ospelt, Hovaltwerk Ag, Vaduz Heizungskessel fuer fluessige oder gasfoermige brennstoffe
DE1804020A1 (de) * 1968-10-19 1970-04-30 Variotherm S A Heizkessel fuer Warmwasserheizung
FR2198610A5 (fr) * 1972-08-31 1974-03-29 Mimric Guy
DE2735353A1 (de) * 1977-08-05 1979-02-08 Hans Viessmann Gliederheizkessel aus guss
DE7914459U1 (de) * 1979-05-18 1979-09-06 Heim, Kurt, 7520 Bruchsal Innenrippenrohr fuer druckgas- oder druckoelbeheizte heizkessel

Also Published As

Publication number Publication date
DE2952564C1 (de) 1981-12-10
EP0031571A1 (fr) 1981-07-08
ATE5438T1 (de) 1983-12-15

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