EP0103063A2 - Chaudière de chauffage central en fonte de fer - Google Patents

Chaudière de chauffage central en fonte de fer Download PDF

Info

Publication number
EP0103063A2
EP0103063A2 EP83103951A EP83103951A EP0103063A2 EP 0103063 A2 EP0103063 A2 EP 0103063A2 EP 83103951 A EP83103951 A EP 83103951A EP 83103951 A EP83103951 A EP 83103951A EP 0103063 A2 EP0103063 A2 EP 0103063A2
Authority
EP
European Patent Office
Prior art keywords
gas flue
combustion chamber
heating gas
heating
central heating
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.)
Ceased
Application number
EP83103951A
Other languages
German (de)
English (en)
Other versions
EP0103063A3 (fr
Inventor
Ernst Wilhelm Dipl.-Ing. Stephan
Gerhold Kolbe
Egon Klose
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.)
Buderus AG
Original Assignee
Buderus AG
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 claimed from DE19828222718 external-priority patent/DE8222718U1/de
Priority claimed from DE19823234293 external-priority patent/DE3234293C2/de
Priority claimed from DE19823245575 external-priority patent/DE3245575A1/de
Application filed by Buderus AG filed Critical Buderus AG
Publication of EP0103063A2 publication Critical patent/EP0103063A2/fr
Publication of EP0103063A3 publication Critical patent/EP0103063A3/fr
Ceased 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

Definitions

  • the invention relates to a central heating boiler made of cast iron with a combustion chamber and a subsequent heating gas flue for cooling the heating gases to below the dew point.
  • a boiler of this type also called a condensing boiler, allows the exhaust gases to be cooled to extremely low temperatures. As a result, the heat of condensation of the vaporous water contained in the exhaust gas can also be used.
  • Boilers are known in which the boiler is followed by an exhaust gas heat exchanger for cooling the exhaust gases. Boilers are also known in which the necessary heat exchanger surface is integrated in the boiler body. The surface on the hot gas side must consist of corrosion-resistant material.
  • a boiler of the known type with a cooling of the heating gases to below the dew point should be designed so that it has optimal properties for the intended purpose.
  • this is achieved by a horizontal arrangement of the combustion chamber and the heating gas flue with a constant inclination from the burner end of the combustion chamber to the rear end of the heating gas flue.
  • Such a boiler is ideally suited to allow the desired condensation to take place within the combustion chamber and the downstream train, particularly in the partial load range. Due to the slight inclination towards the end of the boiler, the resulting condensate can flow from where it has to be drained off through a drain connection.
  • the boiler can be designed for a horizontal arrangement. In this case, the combustion chamber and the windings of the heating gas flue are next to each other, but with a slight downward slope towards the flue gas nozzle. If the boiler is to be arranged vertically, the combustion chamber and the windings of the heating gas flue can lie one below the other, whereby the slope must also be observed.
  • the cast iron boiler allows the monoblock construction.
  • the result is a closed boiler body in the form of a housing with a unit consisting of the combustion chamber and the heating gas flue penetrating it.
  • a boiler of this type can be produced in the casting process without great difficulty. It is very economical and has sufficient corrosion protection. For safety reasons, the surfaces in contact with the heating gas can also be provided with a temperature and acid-resistant coating.
  • heating gases can also enter the heating gas flue directly.
  • a distribution channel below the constriction should be designed so that its cross-section tapers from sub-channel to sub-channel, whereby a uniform distribution of the heating gases is achieved on the sub-channels.
  • the described design results in increased heat dissipation in conjunction with a lowering of the temperature of the heating gases.
  • a baffle at the end of the hot gas flue in front of the mouth of the subchannels and an exhaust pipe arranged above it. In this way, no condensate is entrained in the exhaust gas flow. It separates from the impact surface, which is further promoted by an increased inclination of the subchannels in the mouth area. The exhaust gas then passes into the exhaust pipe above the condensate collection chamber.
  • the boiler consists of a single block in the form of a housing 1 with a combustion chamber 2 penetrating it, at the rear end of which a meandering heating gas duct 3 is connected.
  • a meandering heating gas duct 3 is connected to the rear end of the heating gas duct 3, where the condensate can be removed through a drainage connection 4.
  • the exhaust gases flow through an exhaust pipe 5 acting as an exhaust to the outside.
  • the boiler is ideal for use with a modulating oil or gas fan burner 6, i.e. a burner, the output of which can be changed as required. It has a temperature-controlled, slidingly variable boiler temperature control.
  • the deliberately chosen cast iron monoblock construction makes the boiler particularly suitable for this mode of operation. Since there are no joints, it is absolutely leak-proof on the hot gas side. It can therefore be surrounded by full foam insulation 7.
  • connection to the heating network is made via the flow connector 8 and the return connector 9. Cleaning the heating gas flue 3 is possible after removing a cleaning cover 10. As a result of the inclination of the heating gas flue 3, combined with a taper towards the exhaust pipe 5, a space 11 is created for a switch box.
  • the flames are reversed in the combustion chamber 2.
  • the flames and heating gases first flow back to the burner 6, the head of which they heat, in order to get into the heating gas flue 3 through a flow opening 12.
  • a constriction 13 is formed by two laterally projecting water pockets 14. Through this constriction 13, part of the heating gases and any condensate that may arise in the combustion chamber 2 can flow directly into the heating gas duct 3.
  • the heating gas flue 3 initially has a distribution channel 3 t which merges into a number of subchannels 3 ′′ and tapers from subchannel to subchannel. This ensures that the heating gases are evenly distributed over the subchannels.
  • the subchannels 3 '' end at the end in a condensate collection chamber 15.
  • a somewhat stronger inclination in the mouth area and a baffle surface 16 increase the condensate excretion.
  • the exhaust pipe 5 is arranged above the mouths of the subchannels 3 ′′. This prevents condensate from being entrained by the exhaust gas flow.

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)
  • Gas Burners (AREA)
  • Incineration Of Waste (AREA)
EP83103951A 1982-08-12 1983-04-22 Chaudière de chauffage central en fonte de fer Ceased EP0103063A3 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE8222718U 1982-08-12
DE19828222718 DE8222718U1 (de) 1982-08-12 1982-08-12 Zentralheizungskessel aus gusseisen
DE3234293 1982-09-16
DE19823234293 DE3234293C2 (de) 1982-08-12 1982-09-16 Zentralheizungskessel aus Gußeisen
DE19823245575 DE3245575A1 (de) 1982-12-09 1982-12-09 Zentralheizungskessel
DE3245575 1982-12-09

Publications (2)

Publication Number Publication Date
EP0103063A2 true EP0103063A2 (fr) 1984-03-21
EP0103063A3 EP0103063A3 (fr) 1984-09-12

Family

ID=27190383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83103951A Ceased EP0103063A3 (fr) 1982-08-12 1983-04-22 Chaudière de chauffage central en fonte de fer

Country Status (1)

Country Link
EP (1) EP0103063A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3432526A1 (de) * 1984-09-05 1986-03-13 Thyssen Industrie Ag, 4300 Essen Heizkessel, insbesondere gasheizkessel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH433654A (de) * 1965-06-09 1967-04-15 Oil Therm Ag Olbefeuerter Heizkessel mit gleich langem Strömungsweg für das gesamte Rauchgasvolumen
AT284156B (de) * 1968-08-30 1970-09-10 Waagner Biro Ag Flammrohr-Rauchrohrkessel
FR2198610A5 (fr) * 1972-08-31 1974-03-29 Mimric Guy
DE2507595A1 (de) * 1975-02-21 1976-09-02 Vama Vertrieb Heizkessel
DE3100888A1 (de) * 1981-01-14 1982-09-02 Hoval Interliz AG, 9490 Vaduz-Neugut Heizkessel fuer niedertemperatur-heizungen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3432526A1 (de) * 1984-09-05 1986-03-13 Thyssen Industrie Ag, 4300 Essen Heizkessel, insbesondere gasheizkessel

Also Published As

Publication number Publication date
EP0103063A3 (fr) 1984-09-12

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL

PUAL Search report despatched

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Effective date: 19841008

STAA Information on the status of an ep patent application or granted ep patent

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18R Application refused

Effective date: 19861215

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KOLBE, GERHOLD

Inventor name: KLOSE, EGON

Inventor name: STEPHAN, ERNST WILHELM, DIPL.-ING.