EP0428117B1 - Chaudière avec recirculation des gaz d'échappement vers le brûleur - Google Patents

Chaudière avec recirculation des gaz d'échappement vers le brûleur Download PDF

Info

Publication number
EP0428117B1
EP0428117B1 EP90121659A EP90121659A EP0428117B1 EP 0428117 B1 EP0428117 B1 EP 0428117B1 EP 90121659 A EP90121659 A EP 90121659A EP 90121659 A EP90121659 A EP 90121659A EP 0428117 B1 EP0428117 B1 EP 0428117B1
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
burner
flue
gas return
chamber
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
EP90121659A
Other languages
German (de)
English (en)
Other versions
EP0428117A3 (en
EP0428117A2 (fr
Inventor
Heinrich Dörnbach
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.)
Viessmann Werke GmbH and Co KG
Original Assignee
Viessmann Werke GmbH and Co KG
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 Viessmann Werke GmbH and Co KG filed Critical Viessmann Werke GmbH and Co KG
Priority to AT90121659T priority Critical patent/ATE95597T1/de
Publication of EP0428117A2 publication Critical patent/EP0428117A2/fr
Publication of EP0428117A3 publication Critical patent/EP0428117A3/de
Application granted granted Critical
Publication of EP0428117B1 publication Critical patent/EP0428117B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • 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 invention relates to a boiler with exhaust gas recirculation to the burner consisting of a water-carrying housing, which has a pipe-shaped, an at least indented, ring-cylindrical and through which a chamber enclosing the combustion chamber, on the exhaust side with a flue gas collecting chamber and on the burner side is closed with a closure door carrying the burner Longitudinal ribs-arranged heating gas flue is arranged inwardly delimiting reversing combustion chamber, wherein an exhaust gas return flow channel, which extends over the whole or approximately the entire length of the pipe run, is arranged in the pipe train between the latter and the pot-shaped reversal combustion chamber, and the open end of the pipe flue is through an exhaust gas backflow opening in the closing door the suction side of the burner fan arranged on the shutter door is connected and protrudes into the flue gas collection chamber with the other open end.
  • Such a boiler is known, for example, from EP-A-03 47 619.
  • NOX content in the exhaust gases which pollutes the environment in addition to other harmful gas components, according to DE-Z VGB Krafttechnik 58, Issue 11, page 821, Nov. 1978
  • part of the exhaust gases with exhaust flap is branched off in a controlled manner, which Burner fed back and mixed with the combustion air.
  • the object of the invention is to make the means for exhaust gas recirculation as simple as possible, both with regard to their manufacture and their installation in or introduction into the boiler.
  • the exhaust gas return flow channel is designed in the form of a U-profile with its open side directed against the wall of the tube train.
  • an exhaust gas backflow channel is very easy to manufacture, and on the other hand, there is no difficulty in introducing such an exhaust gas backflow channel into the boiler, in particular if, as mentioned, the tube train should be provided with longitudinal ribs on the inside.
  • the exhaust gas return flow channel which is U-shaped in cross section, can overlap at least one longitudinal rib, depending on the width dimensioning, and can engage with its flank webs in the individual trains adjacent to the longitudinal rib.
  • such an embodiment of the exhaust gas return flow channel has the advantage over a closed, tubular return flow channel that no dirt or combustion residues can accumulate under it.
  • the exhaust gas backflow channel also simultaneously takes on the task of rod-like holding brackets previously attached to such combustion chambers, which on the one hand represent an aid for pulling out the reversal combustion chamber and on the other hand fix the reversal combustion chamber in its arrangement in the tube train.
  • the exhaust gas return flow channel can be provided at its door end with a contact flange against which the closing door or its refractory lining then bears.
  • the burner belonging to each boiler is equipped with a two-chamber fan housing with one impeller each, the chamber near the door overlapping the exhaust gas backflow opening in the shutter door, i.e.
  • the impeller located in the chamber near the door acts directly on the opening in the shutter door and thus on the exhaust gas return flow channel, which design of the fan housing also has the additional advantage that the exhaust gases sucked in and passed on to the burner are not associated with a correspondingly other design of the burner the combustion air supplied by the other impeller and thus the nozzle assembly must be fed, but can be blown out directly into the flame area.
  • the boiler consists of a water-carrying housing 17, which is penetrated by a tube 1, which surrounds the combustion chamber, on the exhaust side with a flue gas collection chamber 18 and on the burner side with a closure door 6 carrying the burner 13, in which the pot-shaped one is arranged in the annular cylindrical heating gas flue inward-facing reversing combustion chamber 2, wherein in the illustrated embodiment, the ring cylindrical hot gas flue is divided into individual trains 9 by longitudinal ribs 10, see FIG. 2.
  • an exhaust gas return flow channel 3 which extends over the entire or approximately the entire length L of the tube train 1, is arranged in the pipe pull 1 between the latter and the pot-shaped reversing combustion chamber 2, the exhaust gas return flow channel 3 being open with its one End 4 is connected through an opening 5 in the closing door 6 to the suction side of the burner fan arranged on the door and, as shown, projects into the flue gas collection chamber 18 with the other open end 7.
  • the exhaust gas return flow channel 3 is designed in the form of a U-profile 8 with its open side against the wall 1 'of the tube train 1 and firmly connected to the pot-shaped reversing combustion chamber 2.
  • the exhaust gas return flow channel 3 which is U-shaped in cross section, extends over at least one longitudinal rib 10 and engages with its flank webs 11 in the individual cables 9 adjacent to the longitudinal rib 9.
  • the latter is provided with a small contact flange 12 at this end, as can be seen in FIG. 1.
  • the arrangement of the exhaust gas backflow channel 3 is preferably carried out and, as shown, at the lowest point of the pipe run 1, since the least high temperatures occur in the combustion chamber there.
  • the burner is equipped with a two-chamber blower housing 14, each with an impeller 14 ', the chamber 15 near the door overlapping the exhaust gas backflow opening 5 in the shutter door 6 in such a way that in this chamber 15 located impeller 14 'exerts its suction on the opening 5 and thus the exhaust gas return flow channel 3.
  • the exhaust gas returned from the collecting chamber 18 is not mixed with the intake combustion air in the burner, but is blown out through a double jacket directly into the flame area, as shown by solid arrows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Incineration Of Waste (AREA)

Claims (5)

  1. Chaudière de chauffage avec reflux du gaz perdu vers le brûleur constituée par un bâti conducteur d'eau (17), qui est traversé par un carneau de tuyau (1), qui entoure le foyer et qui est fermé, côté évacuation, par un collecteur de gaz de fumée (18) et, côté brûleur, par une porte de fermeture (6) qui porte le brûleur (13), et dans lequel est placée une chambre de combustion à renversement (2) en forme de pot, qui délimite vers l'intérieur un carneau de gaz de chauffage au moins avec un passage, cylindrique en anneau et divisé par des nervures longitudinales (10), un canal de reflux du gaz perdu (3) étant placé dans le carneau de tuyau (1) entre celui-ci et la chambre de combustion à renversement (2) en forme de pot en s'étendant sur toute ou presque toute la longueur (L) du carneau de tuyau (1) et celui-ci étant en relation, avec son extrémité ouverte (4), à travers un orifice de reflux de gaz perdu (5) dans la porte de fermeture (6) avec le côté d'aspiration de la soufflante du brûleur placée sur la porte de fermeture (6) et pénétrant, avec l'autre extrémité ouverte (7), dans le collecteur de gaz de fumée (18) dans lequel le canal de reflux du gaz perdu (3) est configuré en forme d'un profilé en U (8) orienté avec son côté ouvert contre la paroi (1') du carneau de tuyau (1) et le profilé en U (8) est relié de manière fixe à la chambre de combustion à renversement en forme de pot (2).
  2. Chaudière de chauffage selon la revendication 1,
    caractérisée en ce
    que le canal de reflux de gaz perdu de section en forme de U (3) recouvre au moins une nervure longitudinale (10) et s'engréne avec ses traverses de flanc (11) dans les carneaux individuels (9) voisins de la nervure longitudinale (10).
  3. Chaudière de chauffage selon la revendication 1 ou 2,
    caractérisée en ce
    que le canal de reflux de gaz perdu (3) est équipé d'une bride d'appui (12) à son extrémité côté porte.
  4. Chaudière de chauffage selon l'une des revendications 1 à 3,
    caractérisée en ce
    que le canal de reflux de gaz perdu (3) est placé à l'endroit le plus profond du carneau de tuyau (1).
  5. Chaudière de chauffage selon l'une des revendications 1 à 4,
    caractérisée en ce
    que le brûleur (13) est équipé d'un boîtier de soufflante à deux compartiments (14) avec une roue à rotor chacune (14'), le compartiment près de la porte (15) recouvrant l'orifice de reflux du gaz perdu (16) de la porte de fermeture (6).
EP90121659A 1989-11-16 1990-11-13 Chaudière avec recirculation des gaz d'échappement vers le brûleur Expired - Lifetime EP0428117B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90121659T ATE95597T1 (de) 1989-11-16 1990-11-13 Heizkessel mit abgasrueckfuehrung zum brenner.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3938090A DE3938090C1 (fr) 1989-11-16 1989-11-16
DE3938090 1989-11-16

Publications (3)

Publication Number Publication Date
EP0428117A2 EP0428117A2 (fr) 1991-05-22
EP0428117A3 EP0428117A3 (en) 1991-07-17
EP0428117B1 true EP0428117B1 (fr) 1993-10-06

Family

ID=6393635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90121659A Expired - Lifetime EP0428117B1 (fr) 1989-11-16 1990-11-13 Chaudière avec recirculation des gaz d'échappement vers le brûleur

Country Status (4)

Country Link
EP (1) EP0428117B1 (fr)
AT (1) ATE95597T1 (fr)
DE (2) DE3938090C1 (fr)
ES (1) ES2045721T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE500326C2 (sv) * 1992-11-18 1994-06-06 Ctc Parca Ab Värmepanna med rökgasåterföring samt brännkammarenhet för sådan värmepanna
FR2711224B1 (fr) * 1993-10-12 1995-12-08 Guillot Ind Sa Dispositif de chauffage à recyclage partiel des gaz de combustion.
DE10129219A1 (de) * 2001-06-19 2003-01-09 Messer Griesheim Gmbh Frankfur Verfahren zum Einschmelzen von Aluminium
FR2972789B1 (fr) * 2011-03-14 2013-04-12 Giannoni France Appareil de chauffage au gaz a condensation
US9631808B2 (en) 2014-11-21 2017-04-25 Honeywell International Inc. Fuel-air-flue gas burner
DE102020121934B3 (de) 2020-08-21 2021-05-20 Viessmann Werke Gmbh & Co Kg Gasbrennervorrichtung und Verfahren zum Betrieb einer Gasbrennervorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2656517A1 (de) * 1976-12-14 1978-06-15 Broetje Fa August Heizkessel mit nicht direkt wassergekuehlter brennkammer
SE441778B (sv) * 1984-03-30 1985-11-04 Ctc Ab Vermepanna med ett cylindriskt vattenmagasin
DE8516607U1 (de) * 1985-06-07 1985-07-25 Buderus Ag, 6330 Wetzlar Vorrichtung zum Zurückführen von Abgasen eines Heizungskessels zum Brenner
DE3738622C1 (en) * 1987-11-11 1989-02-02 Wolf Klimatechnik Gmbh Heating furnace with equipment for recirculating flue gas
DE3820671A1 (de) * 1988-06-18 1989-12-21 Viessmann Werke Kg Heizungskessel fuer die verbrennung fluessiger oder gasfoermiger brennstoffe

Also Published As

Publication number Publication date
DE59003002D1 (de) 1993-11-11
DE3938090C1 (fr) 1991-04-18
ES2045721T3 (es) 1994-01-16
ATE95597T1 (de) 1993-10-15
EP0428117A3 (en) 1991-07-17
EP0428117A2 (fr) 1991-05-22

Similar Documents

Publication Publication Date Title
EP0428117B1 (fr) Chaudière avec recirculation des gaz d'échappement vers le brûleur
EP0415037B1 (fr) Brûleur à air soufflé pour chaudière de chauffage avec recyclage des fumées
DE69312226T2 (de) Heizkessel mit Rauchgasrezirkulation
DE2609987A1 (de) Brenner fuer kessel mit hohem widerstand
DE2811586A1 (de) Heizanlage
EP0347619A2 (fr) Chaudière pour la combustion de combustibles liquides ou gazeux
DE19519963A1 (de) Heizkessel
DE19950997C2 (de) Für Außenwandanschluss ausgebildetes Heizgerät
EP0043504A1 (fr) Boîte à monter dans un mur extérieur pour les conduits de l'air de combustion et du gaz d'échappement d'un appareil fonctionnant avec un système à brûleur
DE3109987C2 (de) Kaminheizkessel aus Stahlblech
DE19538701C2 (de) Warmlufterzeuger
DE8306959U1 (de) Selbstaendig arbeitende feuerungseinrichtung mit warmluftumwaelzung fuer kamine
DE10130925A1 (de) Gastherme
EP0431314B1 (fr) Chaudière de chauffage brûlant des combustibles liquides ou gazeux
EP0535331B1 (fr) Chaudière
DE9017790U1 (de) Heizkessel zum Verbrennen flüssiger oder gasförmiger Brennstoffe
DE19860658C1 (de) Dreizugheizkessel
DE3212349C2 (de) Niedertemperatur-Heizungskessel
DE4428942C1 (de) Gasheizkessel
AT239488B (de) Luftheizaggregat
DE8126665U1 (de) "waermetauschervorrichtung fuer kaminofenrauchgase"
DE2052604A1 (de) Raumheizofen zum Anschluß an einen Hausschornstein in flacher Bauweise mit Längsbrenner für gasförmige Brennstoffe
DE1927201U (de) Back- oder trokkenofen.
DE7537444U (de) Heissluftofen
DE29610247U1 (de) Dreizugheizkessel

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

17P Request for examination filed

Effective date: 19910807

17Q First examination report despatched

Effective date: 19920506

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 95597

Country of ref document: AT

Date of ref document: 19931015

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 59003002

Country of ref document: DE

Date of ref document: 19931111

EPTA Lu: last paid annual fee
ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2045721

Country of ref document: ES

Kind code of ref document: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940106

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: VIESSMANN WERKE GMBH & CO.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19940802

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19971127

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19981105

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19981113

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19981117

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19981127

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19981130

Year of fee payment: 9

Ref country code: NL

Payment date: 19981130

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19981208

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991113

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991113

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991130

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991130

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991130

BERE Be: lapsed

Owner name: VIESSMANN WERKE G.M.B.H. & CO.

Effective date: 19991130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000601

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19991113

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000731

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20000601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20001214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981130