EP0190659A2 - Chaudière - Google Patents

Chaudière Download PDF

Info

Publication number
EP0190659A2
EP0190659A2 EP86101187A EP86101187A EP0190659A2 EP 0190659 A2 EP0190659 A2 EP 0190659A2 EP 86101187 A EP86101187 A EP 86101187A EP 86101187 A EP86101187 A EP 86101187A EP 0190659 A2 EP0190659 A2 EP 0190659A2
Authority
EP
European Patent Office
Prior art keywords
gas
mixing tube
combustion chamber
boiler
burner
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Withdrawn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
EP86101187A
Other languages
German (de)
English (en)
Other versions
EP0190659A3 (fr
Inventor
Hans Dr. Viessmann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0190659A2 publication Critical patent/EP0190659A2/fr
Publication of EP0190659A3 publication Critical patent/EP0190659A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel

Definitions

  • the invention relates to a heating boiler with a combustion chamber equipped with a gas forced draft burner with secondary heating surfaces according to the preamble of the main claim.
  • Boilers of the type mentioned are generally known and with regard to the gas forced draft burners, reference is made to VDI report No. 246 1945, in particular pages 50 to 52, and also to DE-GM 80 25 383.9, the subject matter of which is, however, a burner, with which both gas and oil can be burned after a simple switchover.
  • Known burners of this type in principle have a so-called mixing tube into which the gas supply tube protrudes centrally, with the gas transverse distribution over the mixing tube cross-section taking place radially between so-called baffle plates which are perforated in order to let the incoming air through and to mix it with the cross-flowing gas.
  • the outflowing gas-air mixture forms a correspondingly long and concentrated flame with a high flow rate, which requires a correspondingly long combustion chamber for the boiler in question.
  • the diameter of the mixing tube is in the Usually only a fraction to the radiant heat of the flame to wear (about 1/4 or 1/5) of the B race of chamber diameter and the combustion chamber door, which must be formed thermally insulated in view of the fact good bill. Due to the high pressure with which such burners are operated, they also generate considerable noise.
  • the invention is therefore based on the object, starting from a heating boiler of the type mentioned, to design this in connection with the burner in such a way that the gas-air mixture formed in the form of a surface flame and with particularly improved NOx values burns directly behind the opening of the mixing tube and accordingly the burner can be operated with a low pressure blower and thus furthermore the possibility should be created to reduce the mixing tube opening size to the transverse. cut the size of the combustion chamber of the boiler equipped with such a burner, i.e. to be able to replace the otherwise insulated, heat-insulated combustion chamber door with the mixing tube.
  • low pressure is to be understood here that the blower manages with approx. 50-70% less pressure than the blower for burners of the previously known type.
  • Essential for this solution is the total coverage of the outflow opening of the mixing tube and the arrangement of the gas distribution elements in the middle Area of the mixing tube, so that there is a sufficiently long mixing section to the burner membrane and the gas-air mixture can flow out over the entire surface. Any of the mixture flow and the flame bundling flame tubes that normally surround the mixing tube, this is not necessary as just a surface burning Bren - is to be achieved nerflamme.
  • So-called surface burners are known in the area of atmospheric gas burners, but they generally consist of three or four individual burners, for example in the form of a tube or box, the gas outflow surfaces of the individual burners also being formed from fine-hole or fine-slot surfaces.
  • a planar flame in the sense provided here cannot be achieved since, depending on the gas pressure, burning individual flames are formed over the gas outlet openings of the burner surface for more or less long periods.
  • the mixing tube is, as it were, a self-supporting outer part of the entire burner at the other end of the blower is directly connected in a suitable manner, it is also necessary, the mixing tube at its outer circumference with b oiler front wall connector elements to be provided.
  • Such a connecting flange is advantageously arranged on the end of the mixing tube on the burner membrane side in order to be able to swing out the end of the mixing tube without taking up much space and to keep the necessary gap as small as possible.
  • a direct flange connection ie without a hinge, such a gap can be kept extremely small.
  • the cross-sectional size of the gas supply pipe protruding centrally into the mixing pipe is only 1 to 5% of the cross-sectional size of the mixing pipe, in contrast to previously known burners, where this ratio is about 20% ..
  • the gas-blown burner for firing the boiler on the mixing tube with its connecting flange is designed as a flangeable or swivel-lockable boiler lock door forms, the burner surface forms the inflow side permanently gas-cooled and on the other hand heat-loaded surface of the boiler lock door.
  • the burner surface forms the inflow side permanently gas-cooled and on the other hand heat-loaded surface of the boiler lock door.
  • the fan manages with a much lower pressure, the whole thing is associated with a significantly lower noise level and a saving of additional energy for driving the fan. Since, as mentioned, the gas-air mixture continuously flows over the entire surface of the burner, the gas burns "colder" to a certain extent and, as measurements have shown, the so-called NOx formation can also be significantly reduced. Another advantage of such a boiler design is that its combustion chamber can be kept extremely short.
  • a gas-permeable burner surface 4 which consists of a suitable metal grid or metal mesh, is arranged on or in the combustion chamber-side opening 3 of the mixing tube 1 and covers the entire opening cross section.
  • the mixing tube 1 is provided on its outer circumference with boiler front wall connecting elements 5, and in the central region of the mixing tube 1 gas distribution lines 13, which are evenly distributed over the entire mixing tube cross section and are provided with gas outflow openings 12, are arranged, which are connected to the gas supply tube 14 and in the exemplary embodiments according to FIG. 1 to 4 radially from the gas supply line stick out pipe 14.
  • the connecting flange 5 ' is attached to the end of the mixing tube 1 on the burner membrane side.
  • an air distributor plate 10 corresponding to the mixer tube cross section is advantageously arranged in front of the gas distributor lines 13 in the mixer tube 1 and is fastened either to the mixer tube 1 or to the gas supply line 14.
  • the gas supply pipe can also serve as a support for the ignition electrode 15 and an ionization electrode 16 at the same time.
  • the mixing tube 1 with its connecting flange 5 1 and hinge 5 is designed as a swivel lockable boiler lock door 18, the burner surface 4 forming the gas-cooled and, on the other hand, heat-loaded surface of the boiler lock door 18 with respect to the combustion chamber 2 of the boiler in question.
  • a small annular gap 20 remains free, all other heat insulation measures required on the boiler lock door 18 itself can be omitted.
  • the gas-air mixture as a flat flame. front 19 burns and in contrast to the bundled flame with high flow speed and a relatively long length, there is the advantage for the boiler equipped with such a burner or such a boiler lock door that the combustion chamber 2 can be dimensioned extremely short, as can be seen from the 1, 2 can be seen. Since the secondary heating surfaces 6 can also be made very compact, this results in an extremely short boiler. Furthermore, since the flame burns as a surface flame, the front surface of the secondary heating surface 6 of the burner surface 4 can be arranged directly opposite to form a short combustion chamber length. It is also possible, however, to design the combustion chamber 2 at the rear to form an overflow chamber 7 and to arrange the secondary heating surface 6 'above the combustion chamber 2, which results in an extremely short boiler with a secondary heating surface 6' attached.
  • the horizontal arrangement of the combustion chamber shown in FIGS. 1, 2 is by no means mandatory, ie the burner or the boiler lock door 18 can also, as can be seen from FIG. 6, be directed vertically downwards and also vertically upwards.

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)
EP86101187A 1985-02-02 1986-01-30 Chaudière Withdrawn EP0190659A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3503554 1985-02-02
DE19853503554 DE3503554A1 (de) 1985-02-02 1985-02-02 Heizungskessel

Publications (2)

Publication Number Publication Date
EP0190659A2 true EP0190659A2 (fr) 1986-08-13
EP0190659A3 EP0190659A3 (fr) 1987-06-03

Family

ID=6261487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86101187A Withdrawn EP0190659A3 (fr) 1985-02-02 1986-01-30 Chaudière

Country Status (2)

Country Link
EP (1) EP0190659A3 (fr)
DE (1) DE3503554A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8710016U1 (de) * 1987-07-22 1988-11-24 Viessmann Werke GmbH & Co, 3559 Allendorf Flächenbrenner
DE8714296U1 (de) * 1987-10-27 1989-03-02 Vießmann, Hans, Dr., 3559 Battenberg Gasheizkessel
DE4108715A1 (de) * 1991-03-18 1992-09-24 Viessmann Hans Gasbrenner fuer heizkessel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789805A (en) * 1972-05-17 1974-02-05 Massachusetts Inst Technology Burner and heat exchanger
JPS5234432A (en) 1975-09-11 1977-03-16 Matsushita Electric Ind Co Ltd Gas burner
NL8000460A (nl) * 1980-01-24 1981-08-17 Laurentius Cornelis Johannes L Verwarmingsinrichting.
DE8025338U1 (de) * 1980-09-22 1984-05-03 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5000 Köln Oel- und gasbrenner zum einbau in heizungs- und dampferzeugungskessel
FR2546273B1 (fr) * 1983-05-19 1988-11-18 Sdecc Bruleur-torche a premelange d'air et de gaz
JP2981944B2 (ja) * 1992-02-19 1999-11-22 松下電器産業株式会社 パターン化した透明導電膜の形成方法

Also Published As

Publication number Publication date
DE3503554A1 (de) 1986-08-07
EP0190659A3 (fr) 1987-06-03
DE3503554C2 (fr) 1987-07-16

Similar Documents

Publication Publication Date Title
EP0309838B1 (fr) Brûleur à gaz
WO1998043019A1 (fr) Chaudiere de chauffage equipee d'un bruleur
DE1897407U (de) Gasbrenner.
DE2363611C3 (de) Reihenbrenner für rostartige Anordnung in einer gasbetriebenen Heizvorrichtung
DE2119831C2 (de) Gasbrenner
DE2257982A1 (de) Warmluftofen und geblaese zur verwendung im zusammenhang mit einem warmluftofen
DE4406446A1 (de) Heizeinrichtung für gasförmige Brennstoffe
DE3503554C2 (fr)
DE3503553C2 (fr)
DE2156374C3 (de) Topfvergasungsbrenner für Flüssigkeitsbrennstoff
DE2656798B2 (de) Brennkammer für einen Heizungskessel
DE1213960B (de) Schmelz- und/oder Warmhalteofen
EP0706010B1 (fr) Appareil de chauffage avec arrangement de buses
DE1961932A1 (de) Gasbrenner
DE3318860C2 (de) Brenner zum Erwärmen von Luft
EP0209703B1 (fr) Cartouche incandescente pour fours, en particulier pour chaudières ainsi que four avec une telle cartouche
DE2125365C3 (de) Strahlungsbrenner für gasförmige Brennstoffe
AT389752B (de) Feuerungsanlage
DE3009764A1 (de) Kohlebrenner
DE2242037C2 (de) Rohrförmiger Gasbrenner, insbesondere für Trockner
DE1551770B2 (de) Langgestrecktes Strahlungselement zur Oberflächenverbrennung eines Gas-Luft-Gemisches
DE683981C (de) Feuerung fuer kohlenbeheizte Kochherde u. dgl.
DE1679707C3 (de) Gasbeheizter Warmwassererhitzer
DE4129552A1 (de) Gasbrenner, insbesondere fuer fluessiggas
DE1551777C (de) Keramischer Gasbrenner fur Wind erhitzer

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 FR IT LI LU NL SE

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 FR IT LI LU NL SE

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19871204