EP0060345A2 - Dispositif dans le conduit de fumée des chaudières de chauffage à huile ou à gaz - Google Patents

Dispositif dans le conduit de fumée des chaudières de chauffage à huile ou à gaz Download PDF

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Publication number
EP0060345A2
EP0060345A2 EP81110299A EP81110299A EP0060345A2 EP 0060345 A2 EP0060345 A2 EP 0060345A2 EP 81110299 A EP81110299 A EP 81110299A EP 81110299 A EP81110299 A EP 81110299A EP 0060345 A2 EP0060345 A2 EP 0060345A2
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EP
European Patent Office
Prior art keywords
air
duct
exhaust
oil
air duct
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.)
Withdrawn
Application number
EP81110299A
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German (de)
English (en)
Other versions
EP0060345A3 (fr
Inventor
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
Application filed by Buderus AG filed Critical Buderus AG
Publication of EP0060345A2 publication Critical patent/EP0060345A2/fr
Publication of EP0060345A3 publication Critical patent/EP0060345A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L11/00—Arrangements of valves or dampers after the fire
    • F23L11/02—Arrangements of valves or dampers after the fire for reducing draught by admission of air to flues

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • Flue gases from heating boilers should not fall below a certain minimum temperature, around 180 ° C, when entering the chimney. Otherwise, condensate would separate out as a result of further cooling in the chimney. In order to avoid the destruction of brick chimneys, this must be prevented.
  • the prescribed minimum temperature of the exhaust gases must be observed at full load. A deliberately higher temperature would be a waste of energy. At partial load in transition periods, the exhaust gas temperatures are automatically lower. At a partial load of 20%, the exhaust gas temperatures are only around 60 ° C. Thus the dreaded condensate excretion occurs. This can also occur at full load and very high temperature reduction in the boiler.
  • Air admixture to the flue gases from boilers is well known.
  • a device of this type which is known as a draft limiter, can be found, for example, in DE-AS 12 41 028.
  • these draft limiters cannot solve the task presented here. They open precisely when the train is high, i.e. at full boiler with high flue gas temperatures. On the other hand, they close at partial load with low draft and low exhaust gas temperatures.
  • the means provided according to the invention ensure that air is fed into the exhaust gases, especially when the draft and exhaust gas temperature are too low. So far, this was neither planned nor possible.
  • the amount of air added must be so large that no condensate is excreted up to the chimney mouth. This is different in size depending on the chimney design and can be supplied by an air mixing fan arranged in the air duct. In the same sense, a variable narrowing of the flow cross section of the exhaust gas duct also acts before the air duct opens. The air is drawn in by injection, although a higher burner fan pressure must be accepted.
  • the means for admixing the air can be measured by a measuring element, preferably a temperature sensor, in the exhaust gas flow to be controlled.
  • the temperature which is necessary for a dry discharge of the exhaust gases is known to a person skilled in the art or can be determined by tests. If it is set at around 180 C in front of the chimney, it can be determined by a temperature sensor in the exhaust gas duct in front of or behind the mouth of the air duct. It is also possible to set a minimum temperature at the chimney mouth and to place the temperature sensor there.
  • the temperature sensor can then have a regulating effect on the air admixing fan and, if necessary, on a flap in the air duct with the interposition of an electric motor.
  • the required air volume can be adjusted by changing the fan speed, the damper position or the injection cross-section in the exhaust duct.
  • the temperature sensor could also act directly on the individual elements in the form of a bimetal.
  • a boiler 1 with a forced draft burner 2 is assigned the device in the exhaust pipe 4 leading to the chimney 3.
  • the device consists of an exhaust gas duct 6 narrowed to an injector cross section 5 with an adjusting disc to be operated from the outside and an air duct 7 opening behind the injector cross section 5.
  • a flap 8 sits in the air duct 7 is closed at full boiler load and prevents exhaust gases from escaping into the installation room.
  • the flap 8 is controlled by a temperature sensor 9 via an electric motor 10, possibly also via another suitable device, in such a way that the air duct 7 is opened at exhaust gas temperatures below the required minimum value.
  • the effectiveness of the injector cross section 5 is supported by an air blower 11 in the air duct 7.
  • the air supply can only be achieved by the suction effect of the injector cross section 5 or only by the pressure of the air admixture blower 11.
  • an additional safety circuit is also possible during the burner's start-up phase in the case of modulating burner operation.
  • the burner itself runs at partial load due to a low outside temperature, it is controlled by a timer at full load until the cooled chimney is heated up. Subsequently, the switch to partial load with the air admixture according to the invention to the exhaust gases takes place.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chimneys And Flues (AREA)
  • Control Of Combustion (AREA)
  • Air Supply (AREA)
  • Treating Waste Gases (AREA)
  • Regulation And Control Of Combustion (AREA)
EP81110299A 1981-03-17 1981-12-10 Dispositif dans le conduit de fumée des chaudières de chauffage à huile ou à gaz Withdrawn EP0060345A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3110306 1981-03-17
DE19813110306 DE3110306A1 (de) 1981-03-17 1981-03-17 Vorrichtung im abgaskanal von oel- oder gasbefeuerten heizkesseln

Publications (2)

Publication Number Publication Date
EP0060345A2 true EP0060345A2 (fr) 1982-09-22
EP0060345A3 EP0060345A3 (fr) 1983-02-02

Family

ID=6127527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81110299A Withdrawn EP0060345A3 (fr) 1981-03-17 1981-12-10 Dispositif dans le conduit de fumée des chaudières de chauffage à huile ou à gaz

Country Status (2)

Country Link
EP (1) EP0060345A3 (fr)
DE (1) DE3110306A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988001198A2 (fr) * 1986-08-16 1988-02-25 Neumann Siegmar R Procede et dispositif permettant d'obtenir un rendement optimal d'energie dans des installations de chauffage, une reduction de la generation de polluants et le nettoyage des gaz de fumee
US4920866A (en) * 1988-05-12 1990-05-01 Michael Hoban Anti back draft device for flue
DE4109576A1 (de) * 1990-03-23 1991-09-26 Nuovo Pignone Spa An der wand montierbarer, gegenueber dem raum abgeschlossener gasheizkessel mit geblaese
GB2275099A (en) * 1993-01-23 1994-08-17 Jonathan Leslie Greenall Heating assemblies having a chimney
AT402232B (de) * 1993-10-14 1997-03-25 Vaillant Gmbh Schornsteinanschluss
NL1002536C2 (nl) * 1996-03-05 1997-09-08 Radson Alutherm Nv Uitlaatstuk ten behoeve van aansluiting van een centraal-verwarmings- toestel op een open schoorsteen.
GB2329856B (en) * 1996-06-20 2000-11-15 Boon Pen Chua Air extraction apparatus
NL1016049C2 (nl) * 2000-08-30 2002-03-01 Gastec Nv Inrichting voor het koppelen van afvoergassen van een gasverbruiktoestel en een ventilatiesysteem met of zonder aansluiting op een Warmte-Terug-Win-unit.
FR2884297A1 (fr) * 2005-04-06 2006-10-13 Conseils Etudes Et Recherches En Gestion De Lair Cerga Bouche de ventilation pour chaudiere a combustible fossile
DE19729716B4 (de) * 1996-12-18 2006-10-26 Robert Bosch Gmbh Verfahren zum Betrieb eines Heizkessels

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3302407A1 (de) * 1983-01-22 1984-07-26 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Regeleinrichtung
DE3345202A1 (de) * 1983-12-14 1985-06-20 Franklin 8901 Kissing Schmidt Vorrichtung zur herabsetzung der taupunkttemperatur von abgasen
HU200226B (en) * 1987-11-23 1990-04-28 Borsod Abauj Zemplen Megyei Ta Method and apparatus for securing condensationless operating state of gas flue offtake systems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR686569A (fr) * 1929-12-13 1930-07-28 Dispositif d'accumulation de chaleur et de ventilation applicable dans les conduits de gaz de fumée
DE1940680A1 (de) * 1969-08-09 1971-03-04 Hermann Hoenlinger Verfahren und Vorrichtung zum Verhindern der Versottung von Schornsteinen
DE2101495A1 (de) * 1971-01-14 1972-07-27 Bieling F Eine Steuerungsanlage für Schornsteinschachtbelüftung zur besseren Rauchgasabführung und zur Verhinderung von Oxydgasvergiftungen
DE2235386A1 (de) * 1972-07-19 1974-02-07 Aloys Huebenthal Zugluft-beimischer
DE2348012A1 (de) * 1973-09-24 1975-04-03 Kutzner Luitpold Motorisch verstellbare absperrklappen fuer gasfeuerstaetten

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2500C (de) * G. KOBLINSKY in Berlin Verbesserte Vorhangsrolle
GB1196113A (en) * 1966-07-21 1970-06-24 Richard Ernest Abraha Jennings Improvements in or relating to Chimneys for Fuel Burning Heaters
AT306215B (de) * 1971-06-24 1973-03-26 Franz Bieling Einbauelement nach Art eines Einbausteines für Schornsteinwangen
FR2144119A5 (fr) * 1971-07-01 1973-02-09 Etu Rech Ventilation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR686569A (fr) * 1929-12-13 1930-07-28 Dispositif d'accumulation de chaleur et de ventilation applicable dans les conduits de gaz de fumée
DE1940680A1 (de) * 1969-08-09 1971-03-04 Hermann Hoenlinger Verfahren und Vorrichtung zum Verhindern der Versottung von Schornsteinen
DE2101495A1 (de) * 1971-01-14 1972-07-27 Bieling F Eine Steuerungsanlage für Schornsteinschachtbelüftung zur besseren Rauchgasabführung und zur Verhinderung von Oxydgasvergiftungen
DE2235386A1 (de) * 1972-07-19 1974-02-07 Aloys Huebenthal Zugluft-beimischer
DE2348012A1 (de) * 1973-09-24 1975-04-03 Kutzner Luitpold Motorisch verstellbare absperrklappen fuer gasfeuerstaetten

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988001198A2 (fr) * 1986-08-16 1988-02-25 Neumann Siegmar R Procede et dispositif permettant d'obtenir un rendement optimal d'energie dans des installations de chauffage, une reduction de la generation de polluants et le nettoyage des gaz de fumee
WO1988001198A3 (fr) * 1986-08-16 1988-05-19 Siegmar R Neumann Procede et dispositif permettant d'obtenir un rendement optimal d'energie dans des installations de chauffage, une reduction de la generation de polluants et le nettoyage des gaz de fumee
US4920866A (en) * 1988-05-12 1990-05-01 Michael Hoban Anti back draft device for flue
DE4109576A1 (de) * 1990-03-23 1991-09-26 Nuovo Pignone Spa An der wand montierbarer, gegenueber dem raum abgeschlossener gasheizkessel mit geblaese
GB2275099A (en) * 1993-01-23 1994-08-17 Jonathan Leslie Greenall Heating assemblies having a chimney
GB2275099B (en) * 1993-01-23 1996-08-28 Jonathan Leslie Greenall Heating assemblies having a chimney
AT402232B (de) * 1993-10-14 1997-03-25 Vaillant Gmbh Schornsteinanschluss
NL1002536C2 (nl) * 1996-03-05 1997-09-08 Radson Alutherm Nv Uitlaatstuk ten behoeve van aansluiting van een centraal-verwarmings- toestel op een open schoorsteen.
EP0794385A1 (fr) * 1996-03-05 1997-09-10 N.V. Radson-Alutherm Sortie de fumées pour la connexion d'une installation de chauffage central à une cheminée ouverte
GB2329856B (en) * 1996-06-20 2000-11-15 Boon Pen Chua Air extraction apparatus
US6331141B1 (en) 1996-06-20 2001-12-18 Boon Pen Chua Fluid extraction apparatus
DE19729716B4 (de) * 1996-12-18 2006-10-26 Robert Bosch Gmbh Verfahren zum Betrieb eines Heizkessels
NL1016049C2 (nl) * 2000-08-30 2002-03-01 Gastec Nv Inrichting voor het koppelen van afvoergassen van een gasverbruiktoestel en een ventilatiesysteem met of zonder aansluiting op een Warmte-Terug-Win-unit.
EP1184624A1 (fr) * 2000-08-30 2002-03-06 Gastec N.V. Procédé pour mélanger les gas d'échappement d'un réchauffeur de gas et d'un systême de ventilation avec ou sans connection avec une unité de récupération de chaleur
FR2884297A1 (fr) * 2005-04-06 2006-10-13 Conseils Etudes Et Recherches En Gestion De Lair Cerga Bouche de ventilation pour chaudiere a combustible fossile

Also Published As

Publication number Publication date
EP0060345A3 (fr) 1983-02-02
DE3110306A1 (de) 1982-09-30

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Inventor name: KLOSE, EGON