EP3569927B1 - Brennervorrichtung mit gepulster luft/gas-vormischung - Google Patents

Brennervorrichtung mit gepulster luft/gas-vormischung Download PDF

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Publication number
EP3569927B1
EP3569927B1 EP19175468.8A EP19175468A EP3569927B1 EP 3569927 B1 EP3569927 B1 EP 3569927B1 EP 19175468 A EP19175468 A EP 19175468A EP 3569927 B1 EP3569927 B1 EP 3569927B1
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EP
European Patent Office
Prior art keywords
burner
air
lamellar
plates
gas
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.)
Active
Application number
EP19175468.8A
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English (en)
French (fr)
Other versions
EP3569927A1 (de
EP3569927C0 (de
Inventor
Yves Cazard
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.)
Yahtec
Original Assignee
Yahtec
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 FR1870577A external-priority patent/FR3081212A1/fr
Application filed by Yahtec filed Critical Yahtec
Publication of EP3569927A1 publication Critical patent/EP3569927A1/de
Application granted granted Critical
Publication of EP3569927B1 publication Critical patent/EP3569927B1/de
Publication of EP3569927C0 publication Critical patent/EP3569927C0/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/34—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air
    • F23D14/36—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/70—Baffles or like flow-disturbing devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/74—Preventing flame lift-off
    • 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
    • F24H3/00—Air heaters
    • F24H3/006—Air heaters using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2241/00—Applications
    • F23N2241/02—Space-heating

Definitions

  • the subject of the present invention is a pulsed air/gas premix burner device.
  • Air stream burners intended to directly heat a constant flow of air, from which the oxygen necessary for combustion is taken, are known.
  • the mixture is carried out at the level of perforated sheets arranged downstream of the gas injection, configured in a V and which act as a flame stabilizer.
  • the gas flow is more or less increased and the flame develops inside the V.
  • the flame is short at low power and long, exceeding the V of the plates, at high power.
  • Such a burner may have the disadvantage of not achieving stoichiometric combustion.
  • Premix burners are also known, comprising a supply system capable of producing an air/gas mixture in the desired proportions, and of injecting this mixture into the burner, with the advantage of good efficiency and therefore low pollutant emissions.
  • a supply system capable of producing an air/gas mixture in the desired proportions, and of injecting this mixture into the burner, with the advantage of good efficiency and therefore low pollutant emissions.
  • Such a burner is described in the document EP 0560454 A2 .
  • the object of the present invention is to propose a burner device with a new type of pulsed air/gas pre-mixture, making it possible to remedy the various drawbacks of the being of the technique, and to obtain perfect combustion, whatever the level of power.
  • the pulsed air/gas premix burner device comprises a lamellar burner associated with a flame stabilizer, arranged in an air stream, and supplied with an air/gas mixture produced in a mixing system disposed externally to said air stream, said mixing system disposed externally to said air stream comprising a centrifugal fan fed by the center on the one hand with gas and on the other hand with combustion air, and comprising at the periphery an ejection duct for the mixture obtained, connected with a lamellar burner.
  • Said lamellar burner consists of a stack of regularly spaced plates, one out of two of which is perforated, and said flame stabilizer is in the form of two plates configured in a V and widening out from said lamellar burner. Said plates are spaced apart so that the non-perforated ones do not block the perforations of the adjacent plate, to allow the combustion of the air-gas mixture.
  • the lamellar burner allows perfect combustion to be obtained, while from 50% to 100% of power, this perfect combustion is obtained by the development of the flame partially on the lamellar burner and on the two perforated V plates.
  • a burner device 1 arranged in an air stream 2 downstream of a centrifugal fan 20.
  • This fan 20 is supplied with air AF which it blows in the direction of the burner device 1, in order to produce, downstream of the burner 1, heated air AR.
  • a mixing system 3 which comprises a centrifugal fan 30 fed by the center on the one hand with gas G and on the other hand with combustion air AC, and comprising on the periphery a duct 31 for ejection of the mixture obtained M, connected to the burner device 1.
  • the burner device 1 comprises a lamellar burner 10 associated with a flame stabilizer 11 which is in the form of two sheets 12 and 13 configured in a V, which flare out from the lamellar burner 10 towards the outside of the air stream 2.
  • the lamellar burner 10 consists of stacked plates, one out of two of which is perforated. The plates are spaced between them so that the non-perforated ones do not block the perforations of the adjacent plate, to allow the combustion of the air-gas mixture.
  • the duct 31 leads to the lamellar burner 10 on a perforated plate, perpendicular to the latter, the combustion taking place at the periphery of the plates.
  • the lamellar burner 10/flame stabilizer 11 combination makes it possible to obtain a short flame, protected from turbulence by the perforated plates 12 and 13.
  • the combustion obtained is better, with less power, while the combustion at the periphery allows the plates to remain at a temperature below 400° C., unlike existing burner devices where combustion takes place on the burner; here the lamellar burner 10 does not overheat and deteriorates less over time.

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)
  • Gas Burners (AREA)

Claims (2)

  1. Brennervorrichtung (1) mit Luft/Gas-Vormischung, umfassend einen Lamellenbrenner (10), der mit einem Flammenhalter (11) verbunden ist, der in einem Luftstrom (2) angeordnet ist und dem ein Luft/Gas-Gemisch zugeführt wird, das in einem Mischsystem (3) hergestellt ist, das außen an dem Luftstrom (2) angeordnet ist, wobei das Mischsystem (3), das außen an dem Luftstrom (2) angeordnet ist, ein Zentrifugalgebläse (30) umfasst, dem durch die Mitte einerseits ein Gas (G) und andererseits Verbrennungsluft (AC) zugeführt wird, und das umlaufend eine Leitung (31) zum Ausstoßen der erhaltenen Mischung (10) vorweist, die mit dem Lamellenbrenner (10) verbunden ist, Vorrichtung, wobei
    - der Lamellenbrenner (10) aus einem Stapel regelmäßig beabstandeter Platte besteht, von denen jede zweite perforiert ist, und
    - der Flammenhalter (11) in Form von zwei Blechen (12, 13), die in V-Form konfiguriert sind und sich von dem Lamellenbrenner (10) erweitern, vorliegt und wobei die Platten voneinander beabstandet sind, so dass die nicht Perforierten die Perforationen der angrenzenden Platte nicht verdecken, um die Verbrennung der Luft-Gas-Mischung zu ermöglichen.
  2. Brennervorrichtung (1) nach Anspruch 1, wobei die Leitung zum Ausstoßen der Mischung (31) auf dem Lamellenbrenner (10) auf einer perforierten Platte senkrecht zu dieser mündet.
EP19175468.8A 2018-05-18 2019-05-20 Brennervorrichtung mit gepulster luft/gas-vormischung Active EP3569927B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1870577A FR3081212A1 (fr) 2018-05-18 2018-05-18 Dispositif de bruleur a pre-melange air/gaz pulse
FR1857637A FR3081210B1 (fr) 2018-05-18 2018-08-24 Dispositif de bruleur a pre-melange air/gaz pulse

Publications (3)

Publication Number Publication Date
EP3569927A1 EP3569927A1 (de) 2019-11-20
EP3569927B1 true EP3569927B1 (de) 2023-07-26
EP3569927C0 EP3569927C0 (de) 2023-07-26

Family

ID=66542160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19175468.8A Active EP3569927B1 (de) 2018-05-18 2019-05-20 Brennervorrichtung mit gepulster luft/gas-vormischung

Country Status (1)

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EP (1) EP3569927B1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3051464A (en) * 1958-10-20 1962-08-28 Maxon Premix Burner Company Air-heating gas burner
NL9200460A (nl) * 1992-03-12 1993-10-01 Flameco Eclipse Bv Gasbrander, menginrichting voor verbrandingslucht en brandbaar gas, ketelinstallatie en verwarminginstallatie, voorzien van een dergelijke gasbrander en menginrichting.
US6921261B2 (en) * 2000-09-28 2005-07-26 Maxon Corporation Air-heating gas burner
KR101428542B1 (ko) * 2013-01-18 2014-08-11 주식회사 경동나비엔 급기 예열기를 구비한 연소장치
GB201401045D0 (en) * 2014-01-22 2014-03-05 Caledonian Control Technology Ltd Flame Screen Assembly

Also Published As

Publication number Publication date
EP3569927A1 (de) 2019-11-20
EP3569927C0 (de) 2023-07-26

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