FR3081212A1 - AIR / GAS PULSE PRE-MIXING BURNER DEVICE - Google Patents
AIR / GAS PULSE PRE-MIXING BURNER DEVICE Download PDFInfo
- Publication number
- FR3081212A1 FR3081212A1 FR1870577A FR1870577A FR3081212A1 FR 3081212 A1 FR3081212 A1 FR 3081212A1 FR 1870577 A FR1870577 A FR 1870577A FR 1870577 A FR1870577 A FR 1870577A FR 3081212 A1 FR3081212 A1 FR 3081212A1
- Authority
- FR
- France
- Prior art keywords
- burner
- air
- lamellar
- burner device
- 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.)
- Pending
Links
Classifications
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- 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
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- 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
- F23D14/583—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits
- F23D14/586—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits formed by a set of sheets, strips, ribbons or the like
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- 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
- F23D2203/00—Gaseous fuel burners
- F23D2203/10—Flame diffusing means
- F23D2203/102—Flame diffusing means using perforated plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/10—Flame diffusing means
- F23D2203/108—Flame diffusing means with stacked sheets or strips forming the outlets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/11401—Flame intercepting baffles forming part of burner head
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
Dispositif de bruleur à pré-mélange air/gaz pulsé qui comprend un bruleur lamellaire (10) associé à un stabilisateur de flamme (11), disposés dans une veine d'air (2), et où : - le bruleur lamellaire (10) est constitué d'un empilement de plaques régulièrement espacées, dont une sur deux est perforée, et qui est alimenté en un mélange air/gaz réalisé dans un système de mélange (3) disposé extérieurement à la veine d'air (2), et - le stabilisateur de flamme (11) se présente sous la forme de deux tôles (12, 13) configurées en V et s'évasant à partir du bruleur lamellaire (10).A burner device with forced air / gas premix which comprises a lamellar burner (10) associated with a flame stabilizer (11) arranged in an air stream (2), and wherein: - the lamellar burner (10) consists of a stack of regularly spaced plates, of which one in two is perforated, and which is supplied with an air / gas mixture produced in a mixing system (3) arranged externally to the air stream (2), and - The flame stabilizer (11) is in the form of two sheets (12, 13) configured in V and flaring from the lamellar burner (10).
Description
DescriptionDescription
Titre de l’invention : Dispositif de bruleur à pré-mélange air/gaz pulsé [0001] [0001] [La présente invention a pour objet un dispositif de bruleur à pré-mélange air/ gaz pulsé.Title of the invention: Burner device with pulsed air / gas premix [0001] [0001] [The present invention relates to a burner device with pulsed air / gas premix.
[0002] [0002] On connaît les brûleurs à veine d’air destinés à chauffer directement un flux constant d’air, dans lequel est prélevé l’oxygène nécessaire à la combustion. Le mélange est réalisé au niveau de tôles perforées disposées en aval de l’injection de gaz, configurées en un V et qui servent de stabilisateur de flamme.We know the air stream burners intended to directly heat a constant flow of air, from which is taken the oxygen necessary for combustion. The mixing is carried out on perforated sheets placed downstream of the gas injection, configured in a V and which serve as flame stabilizer.
[0003] [0003] Pour faire moduler la puissance, on augmente plus ou moins le débit de gaz et la flamme se développe à l’intérieur du V.To modulate the power, the gas flow is more or less increased and the flame develops inside the V.
[0004] [0004] La flamme est courte à petite puissance et longue, dépassant le V des tôles, en grande puissance. Un tel bruleur peut présenter l’inconvénient de ne pas atteindre une combustion stœchiométrique.The flame is short at low power and long, exceeding the V of the sheets, at high power. Such a burner can have the drawback of not achieving stoichiometric combustion.
[0005] [0005] On connaît aussi les brûleurs à pré-mélange, comprenant un système d’alimentation apte à réaliser un mélange air/gaz dans les proportions souhaitées, et à injecter ce mélange dans le bruleur, avec pour avantage un bon rendement et donc une faible émission de polluants.Also known are the premix burners, 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 a good yield. and therefore a low emission of pollutants.
[0006] [0006] La présente invention a pour but de proposer un dispositif de bruleur à prémélange air/gaz pulsé de type nouveau, permettant de remédier aux divers inconvénients de l’étant de la technique, et d’obtenir une combustion parfaite, quel que soit le niveau de puissance.The present invention aims to provide a burner device with premix air / pulsed gas of new type, to overcome the various drawbacks of the art, and to obtain perfect combustion, regardless of the power level.
[0007] [0007] Le dispositif de bruleur à pré-mélange air/gaz pulsé selon l’invention se caractérise en ce qu’il comprend un bruleur lamellaire associé à un stabilisateur de flamme, disposés dans une veine d’air, et où :The pulsed air / gas pre-mixture burner device according to the invention is characterized in that it comprises a lamellar burner associated with a flame stabilizer, arranged in an air stream, and where :
[0008] - ledit bruleur lamellaire est constitué d’un empilement de plaques régulièrement espacées, dont une sur deux est perforée, et qui est alimenté en un mélange air/gaz réalisé dans un système de mélange disposé extérieurement à ladite veine d’air, et [0009] - ledit stabilisateur de flamme se présente sous la forme de deux tôles perforées configurées en V et s’évasant à partir dudit bruleur lamellaire.- said lamellar burner consists of a stack of regularly spaced plates, one in two of which is perforated, and which is supplied with an air / gas mixture produced in a mixing system arranged outside said air stream, and [0009] - said flame stabilizer is in the form of two perforated sheets configured in V and flaring from said lamellar burner.
[0010] [0008] De la puissance minimale jusqu’à 50% de la puissance, le brûleur lamellaire permet d’obtenir une combustion parfaite, tandis que de 50% à 100% de la puissance, cette combustion parfaite est obtenue par le développement de la flamme partiellement sur le brûleur lamellaire et sur les deux plaques en V perforées.From the minimum power up to 50% of the power, the lamellar burner provides perfect combustion, while from 50% to 100% of the power, this perfect combustion is obtained by the development partially flame on the lamellar burner and on the two perforated V-shaped plates.
[0011] [0009] Les avantages et les caractéristiques du dispositif de bruleur selon l’invention ressortiront plus clairement de la description qui suit et qui se rapporte au dessin annexé, lequel en représente, sur une figure unique, une vue schématique et en perspective.The advantages and characteristics of the burner device according to the invention will emerge more clearly from the description which follows and which refers to the attached drawing, which shows, in a single figure, a schematic and perspective view .
[0012] [0010] Sur cette figure, on peut voir un dispositif de bruleur 1 selon l’invention, disposé dans une veine d’air 2 en aval d’un ventilateur centrifuge 20. Ce ventilateur 20 est alimenté en air AF qu’il souffle en direction du dispositif de bruleur 1, afin de produire, en aval du bruleur 1, un air réchauffé AR.In this figure, we can see a burner device 1 according to the invention, arranged in an air stream 2 downstream of a centrifugal fan 20. This fan 20 is supplied with AF air that it blows towards the burner device 1, in order to produce, after the burner 1, a heated air AR.
[0013] [0011] Extérieurement à la veine d’air 2, est disposé un système de mélange 3, qui comprend un ventilateur centrifuge 30 alimenté par le centre d’une part en gaz G et d’autre part en air de combustion AC, et comportant en périphérie un conduit 31 d’éjection du mélange obtenu M, connecté au dispositif de bruleur 1.Externally to the air stream 2, is arranged a mixing system 3, which comprises a centrifugal fan 30 supplied by the center on the one hand in G gas and on the other hand in combustion air AC , and comprising at the periphery a conduit 31 for ejecting the mixture obtained M, connected to the burner device 1.
[0014] [0012] Le dispositif de bruleur 1 selon l’invention comprend un bruleur lamellaire 10 associé à un stabilisateur de flamme 11 qui se présente sous la forme de deux tôles 12 et 13 configurées en V, qui s’évasent à partir du bruleur lamellaire 10 vers l’extérieur de la veine d’air 2.The burner device 1 according to the invention comprises a lamellar burner 10 associated with a flame stabilizer 11 which is in the form of two sheets 12 and 13 configured in V, which flare from the lamellar burner 10 towards the outside of the air stream 2.
[0015] [0013] Le bruleur lamellaire 10 est constitué de plaques empilées, dont une sur deux est perforée. Les plaques sont espacées entre elles en sorte que les non perforées n’obturent pas les perforations de la plaque adjacente, pour permettre la combustion du mélange air-gaz.The lamellar burner 10 consists of stacked plates, one in two is perforated. The plates are spaced apart so that the non-perforated ones do not block the perforations of the adjacent plate, to allow combustion of the air-gas mixture.
[0016] [0014] Le conduit 31 débouche sur le bruleur lamellaire 10 sur une plaque perforée, perpendiculairement à celle-ci, la combustion se faisant en périphérie des plaques.The duct 31 opens onto the lamellar burner 10 on a perforated plate, perpendicular thereto, the combustion taking place at the periphery of the plates.
[0017] [0015] La combinaison bruleur lamellaire 10 / stabilisateur de flamme 11, permet d’obtenir une flamme courte, protégée des turbulences par les tôles perforées 12 et 13.The combination of lamellar burner 10 / flame stabilizer 11 allows a short flame to be obtained, protected from turbulence by the perforated sheets 12 and 13.
[0018] [0016] La combustion obtenue est meilleure, avec moins de puissance, tandis que la combustion en périphérie permet aux plaques de rester à une température en-dessous des 400°C contrairement aux dispositifs de bruleur existants où la combustion se fait sur le bruleur; ici le brûleur lamellaire 10 ne surchauffe pas et se détériore moins avec le temps.]The combustion obtained is better, with less power, while the combustion on 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.]
Claims (1)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1870577A FR3081212A1 (en) | 2018-05-18 | 2018-05-18 | AIR / GAS PULSE PRE-MIXING BURNER DEVICE |
| FR1857637A FR3081210B1 (en) | 2018-05-18 | 2018-08-24 | AIR / PULSE GAS PRE-MIX BURNER DEVICE |
| EP19175468.8A EP3569927B1 (en) | 2018-05-18 | 2019-05-20 | Burner device with pulsed air/gas pre-mix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1870577A FR3081212A1 (en) | 2018-05-18 | 2018-05-18 | AIR / GAS PULSE PRE-MIXING BURNER DEVICE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR3081212A1 true FR3081212A1 (en) | 2019-11-22 |
Family
ID=65201147
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1870577A Pending FR3081212A1 (en) | 2018-05-18 | 2018-05-18 | AIR / GAS PULSE PRE-MIXING BURNER DEVICE |
| FR1857637A Active FR3081210B1 (en) | 2018-05-18 | 2018-08-24 | AIR / PULSE GAS PRE-MIX BURNER DEVICE |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1857637A Active FR3081210B1 (en) | 2018-05-18 | 2018-08-24 | AIR / PULSE GAS PRE-MIX BURNER DEVICE |
Country Status (1)
| Country | Link |
|---|---|
| FR (2) | FR3081212A1 (en) |
Family Cites Families (5)
| 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 (en) * | 1992-03-12 | 1993-10-01 | Flameco Eclipse Bv | GAS BURNER, COMBUSTION FOR COMBUSTION AIR AND FLAMMABLE GAS, BOILER INSTALLATION AND HEATING INSTALLATION, PROVIDED WITH SUCH A GAS BURNER AND MIXER. |
| US6921261B2 (en) * | 2000-09-28 | 2005-07-26 | Maxon Corporation | Air-heating gas burner |
| KR101428542B1 (en) * | 2013-01-18 | 2014-08-11 | 주식회사 경동나비엔 | Combustor with air intake preheater |
| GB201401045D0 (en) * | 2014-01-22 | 2014-03-05 | Caledonian Control Technology Ltd | Flame Screen Assembly |
-
2018
- 2018-05-18 FR FR1870577A patent/FR3081212A1/en active Pending
- 2018-08-24 FR FR1857637A patent/FR3081210B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| FR3081210B1 (en) | 2021-04-30 |
| FR3081210A1 (en) | 2019-11-22 |
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