EP0006048B1 - Burner for a gas torch - Google Patents
Burner for a gas torch Download PDFInfo
- Publication number
- EP0006048B1 EP0006048B1 EP79400319A EP79400319A EP0006048B1 EP 0006048 B1 EP0006048 B1 EP 0006048B1 EP 79400319 A EP79400319 A EP 79400319A EP 79400319 A EP79400319 A EP 79400319A EP 0006048 B1 EP0006048 B1 EP 0006048B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- grid
- section
- side walls
- 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
Links
Images
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
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
-
- 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
- F23D14/52—Nozzles for torches; for blow-pipes
Definitions
- the present invention relates to a burner for a torch with rapid gas flow.
- burners for gas torches comprising an expansion chamber and a combustion chamber separated by a diffusion grid constituting the nozzle means, allowing the distribution of the gas flow in the combustion chamber where the gas is consumed, this kind of burner during the combustion of the gas has its side walls which are brought to very high temperature not admitting the possibility of gripping by the user. So as to overcome this drawback, some burners are equipped with a secondary surround offset from the side walls and provided with large recesses in order to allow ventilation.
- the burner which is the subject of the invention comprises two symmetrical half shells fixed to each other having an inlet end which adjusts and fits on the gas flow supply duct and, in its extension, an outlet end , intermediate between the two ends, a diffusion grid constituting the nozzle means is maintained and delimits an expansion chamber and a constituting chamber, the diffusion grid has a U or V-shaped section provided with recesses constituting the means nozzle for the flow and distribution of the gas flow both on its front part of circular or triangular shape and on its side walls, these being offset from the interior walls of the burner in order to create flow paths for the passing gas flow across them, flow taking place outside the combustion chamber by virtue of the conical section extension of said chamber intended to cause an increase in the speed of Lement of the lateral gas flow, the combustion in the gas flow chamber which flows through the front part of the grid, allowing the ignition of the lateral gas flow outside said chamber while promoting the attachment of the flame.
- the diffusion grid consists of one or two sheets depending on the gas pressures used, the said sheet or sheets are provided with recesses constituting the nozzle means, the surface of the recesses being at least equal to or greater than the outlet section of the combustion chamber, in the case of using low or medium pressure gases, two sheets are used, they are superimposed and joined or not joined at the front and this in order to avoid flashbacks, the section of the recesses of the upper sheet being larger than the section of the recesses in the lower sheet.
- the burner 1 has two symmetrical half shells 2 and 3 fixed to each other by welding or any other known means, the end 4 is the cylindrical entry intended for s' fit and fit onto the fast-flowing gas flow supply duct, not shown, the end 5 is the outlet.
- a diffusion grid 6, constituting the nozzle means is maintained, it delimits the expansion chamber 7 and the combustion chamber 8.
- said grid 6 has a U-shaped section whose front part 11 1 is circular, the perforated sheets 9 and 10 have recesses constituting the nozzle means both on the front part 11 and on the side walls 12, the total surface of the recesses of the upper sheet 9 is approximately 50% greater than the total surface of the recesses of the sheet lower 10 and this in order to avoid flashbacks, the total surface of the recesses in the lower sheet 10 being equal to or greater than the outlet surface 5 of the combustion chamber of the burner 1, the grid 6 can be formed by a single perforated sheet, in particular in the case of the use of high pressure gases, while for medium pressure gases two superimposed and joined perforated sheets can be used.
- the grate 6 is held in the burner 1 by means of the extensions 13 of the side walls 12 which are inserted in the grooves 14 arranged on the shells 2 and 3, the insertion of the extensions 13 in the grooves 14 determines the position of the side walls 12 of the grid 6 relative to the interior faces of the burner 1 so as to generate corridors 15 for the flow of the gas flow passing through said walls 12, the spacing is such that it only allows the flow of the gas flow but not its combustion this taking place outside the combustion chamber 8, thanks to the extension 16 of the chamber 8 of conical shape which causes an increase in the speed of flow of the lateral gas flow, the combustion in the chamber gas flow flowing at high speed outside the chamber while promoting the attachment of the flame.
- the expansion chambers 7 and combustion 8 may be of different shapes: in the shape of a parallelepiped, cylindrical, ovoid, etc., the shape of the grids 6 of section in the shape of U or V being adapted to match the shape of said chambers, in particular that of combustion.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Description
La présente invention concerne un brûleur pour chalumeau à écoulement rapide du flux gazeux.The present invention relates to a burner for a torch with rapid gas flow.
On connait des brûleurs pour chalumeau à gaz comportant une chambre de détente et une chambre de combustion séparées par une grille de diffusion constituant les moyens de buse, permettant la répartition du flux gazeux dans la chambre de combustion où le gaz se consume, ce genre de brûleur durant la combustion du gaz a ses parois latérales qui sont portées à très haute température n'admettant pas de possibilité de préhension par l'utilisateur. De sorte à palier à cet inconvénient, certains brûleurs sont équipés d'un entourage secondaire décalé des parois latérales et dotés d'évidements importants afin de permettre un aération.There are known burners for gas torches comprising an expansion chamber and a combustion chamber separated by a diffusion grid constituting the nozzle means, allowing the distribution of the gas flow in the combustion chamber where the gas is consumed, this kind of burner during the combustion of the gas has its side walls which are brought to very high temperature not admitting the possibility of gripping by the user. So as to overcome this drawback, some burners are equipped with a secondary surround offset from the side walls and provided with large recesses in order to allow ventilation.
Le brûleur objet de l'invention comporte deux demies coquilles symétriques fixées l'une à l'autre présentant une extrémité d'entrée s'ajustant et s'emboitant sur le conduit d'amenée du flux gazeux et en son prolongement une extrémité de sortie, intermédiairement entre les deux extrémités une grille de diffusion constituant les moyens de buse est maintenue et délimite une chambre de détente et une chambre de constution, la grille de diffusion présente une section en forme d'U ou V dotée d'évidements constituant les moyens de buse pour l'écoulement et la répartition du flux gazeux tant sur sa partie frontale de forme circulaire ou triangulaire que sur ses parois latérales, celles-ci étant décalées des parois intérieures du brûleur afin de créer des couloirs d'écoulement du flux gazeux passant en leur travers, écoulement ayant lieu jusqu'à l'extérieur de la chambre de combustion grâce au prolongement de section conique de ladite chambre destiné provoquer une augmentation de vitesse d'écoulement du flux gazeux latéral, la combustion dans la chambre du flux gazeux qui s'écoule au travers de la partie frontale de la grille, permettant l'allumage du flux gazeux latéral à l'extérieur de ladite chambre tout en favorisant l'accrochage de la flamme.The burner which is the subject of the invention comprises two symmetrical half shells fixed to each other having an inlet end which adjusts and fits on the gas flow supply duct and, in its extension, an outlet end , intermediate between the two ends, a diffusion grid constituting the nozzle means is maintained and delimits an expansion chamber and a constituting chamber, the diffusion grid has a U or V-shaped section provided with recesses constituting the means nozzle for the flow and distribution of the gas flow both on its front part of circular or triangular shape and on its side walls, these being offset from the interior walls of the burner in order to create flow paths for the passing gas flow across them, flow taking place outside the combustion chamber by virtue of the conical section extension of said chamber intended to cause an increase in the speed of Lement of the lateral gas flow, the combustion in the gas flow chamber which flows through the front part of the grid, allowing the ignition of the lateral gas flow outside said chamber while promoting the attachment of the flame.
La grille de diffusion est constituée par une ou deux tôles selon les pressions de gaz utilisées, la ou lesdites tôles sont dôtées d'évidements constituant les moyens de buse, la surface des évidements étant au moins égale ou supérieure à la section de sortie de la chambre de combustion, dans le cas d'utilisation de gaz à basse ou moyenne pression, deux tôles sont utilisées, elles sont superposées et accolées ou non accolées en partie frontale et ce afin d'éviter les retours de flamme, la section des évidements de la tôle supérieure étant plus importante que la section des évidements de la tôle inférieure.The diffusion grid consists of one or two sheets depending on the gas pressures used, the said sheet or sheets are provided with recesses constituting the nozzle means, the surface of the recesses being at least equal to or greater than the outlet section of the combustion chamber, in the case of using low or medium pressure gases, two sheets are used, they are superimposed and joined or not joined at the front and this in order to avoid flashbacks, the section of the recesses of the upper sheet being larger than the section of the recesses in the lower sheet.
D'autres caractéristiques et avantages de l'invention ressortiront plus clairement de la description qui va suivre faite en regard des dessins joints donnés à titre d'exemple non limitatif, où:
- - la figure 1 est un brûleur de section de sortie rectangulaire,
- - la figure 2, est un brûleur de section de sortie circulaire,
- - les figures 3, 4 et 5 représentent en coupe différentes formes de grilles logées dans des brûleurs.
- FIG. 1 is a burner with a rectangular outlet section,
- FIG. 2 is a burner with a circular outlet section,
- - Figures 3, 4 and 5 show in section different forms of grids housed in burners.
Tel que représenté figures 1 à 5, le brûleur 1 comporte deux demies coquilles 2 et 3 symétriques fixées l'une à l'autre par soudure ou tout autre moyen connu, l'extrémité 4 est l'entrée de forme cylindrique destinée à s'emboîter et s'ajuster sur le conduit d'amenée à écoulement rapide du flux gazeux non représenté, l'extrémité 5 est la sortie. Intermédiairement entre l'entrée 4 et sortie 5, une grille de diffusion 6, constituant les moyens de buse, est maintenue, elle délimite la chambre de détente 7 et la chambre de combustion 8. La grille de diffusion 6 représentée figure 3, pour l'utilisation de gaz à faible pression, est constituée par deux tôles perforées 9 et 10 superposées et décalées en partie frontale, ladite grille 6 a une section en forme d'U dont la partie frontale 11 1 est circulaire, les tôles perforées 9 et 10 sont dotées d'évidements constituant les moyens de buse tant sur la partie frontale 11 que sur les parois latérales 12, la surface totale des évidements de la tôle supérieure 9 est supérieure de 50% environ par rapport à la surface totale des évidements de la tôle inférieure 10 et ce de façon à éviter les retours de flamme, la surface totale des évidements de la tôle inférieure 10 étant égale ou supérieure à la surface de sortie 5 de la chambre de combustion du brûleur 1, la grille 6 peut être constituée par une seule tôle perforée, notamment dans le cas d'utilisation de gaz de forte pression, tandis que pour des gaz à moyenne pression deux tôles perforées superposées et accolées peuvent être utilisées.As shown in Figures 1 to 5, the
La grille 6 est maintenue dans le brûleur 1 au moyen des prolongements 13 des parois latérales 12 qui s'insérent dans les rainures 14 aménagées sur les coquilles 2 et 3, l'insertion des prolongements 13 dans les rainures 14 détermine la position des parois latérales 12 de la grille 6 par rapport aux faces intérieures de brûleur 1 de sorte à engendrer des couloirs 15 pour l'écoulement du flux gazeux passant au travers desdites parois 12, l'écartement est tel qu'il permet seulement l'écoulement du flux gazeux mais non sa combustion celle-ci ayant lieu à l'extérieur de la chambre à combustion 8, grâce au prolongement 16 de la chambre 8 de forme conique qui provoque une augmentation de vitesse d'écoulement du flux gazeux latéral, la combustion dans la chambre du flux gazeux s'écoulant à grande vitesse à l'extérieur de la chambre tout en favorisant l'accrochage de la flamme.The
Le fait que la combustion du flux gazeux latéral a lieu à l'extérieur de la chambre à combustion engendre un avantage certain, notamment au niveau des parois du brûleur 1 qui restent froides durant ladite combustion.The fact that the combustion of the lateral gas flow takes place outside the combustion chamber generates a certain advantage, in particular at the level of the walls of the
Sans sortie du cadre de l'invention, les chambres de détente 7 et de combustion 8 peuvent être de différentes formes: en forme de parallélépipède, cylindrique, ovoîde, etc., la forme des grilles 6 de section en forme d'U ou V étant adaptée pour épouser la forme desdites chambres, notamment celle de combustion.Without departing from the scope of the invention, the expansion chambers 7 and combustion 8 may be of different shapes: in the shape of a parallelepiped, cylindrical, ovoid, etc., the shape of the
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7816497 | 1978-05-29 | ||
FR7816497A FR2427551A1 (en) | 1978-05-29 | 1978-05-29 | GAS TORCH BURNER |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0006048A1 EP0006048A1 (en) | 1979-12-12 |
EP0006048B1 true EP0006048B1 (en) | 1983-01-12 |
EP0006048B2 EP0006048B2 (en) | 1986-09-10 |
Family
ID=9208981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP79400319A Expired EP0006048B2 (en) | 1978-05-29 | 1979-05-21 | Burner for a gas torch |
Country Status (4)
Country | Link |
---|---|
US (2) | US4631023A (en) |
EP (1) | EP0006048B2 (en) |
DE (1) | DE2964465D1 (en) |
FR (1) | FR2427551A1 (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2606491B1 (en) * | 1986-11-12 | 1989-03-03 | Stepack | IGNITION DEVICE FOR HIGH SPEED BURNER OF COLD NOZZLE TYPE AND BURNER USING THE SAME |
FR2615271B1 (en) * | 1987-05-12 | 1990-03-16 | Stepack | GAS BURNER, COLD NOZZLE TYPE |
US5174744A (en) * | 1991-11-01 | 1992-12-29 | Gas Research Institute | Industrial burner with low NOx and CO emissions |
US5626471A (en) * | 1994-05-10 | 1997-05-06 | University Of Delaware | Adjustable hot gas torch nozzle |
US5458484A (en) * | 1994-05-16 | 1995-10-17 | Carrier Corporation | Pre-mix flame type burner |
US5520536A (en) * | 1995-05-05 | 1996-05-28 | Burner Systems International, Inc. | Premixed gas burner |
EP0909126A4 (en) * | 1996-07-05 | 1999-09-22 | Boral Gas Nsw Pty Ltd | Improved concentrated heat agricultural flame cultivator apparatus |
AU719752B2 (en) * | 1996-07-05 | 2000-05-18 | Origin Energy Lpg Limited | Improved concentrated heat agricultural flame cultivator apparatus |
CA2262954A1 (en) * | 1998-02-24 | 1999-08-24 | Beckett Gas, Inc. | Burner nozzle |
US6244854B1 (en) * | 1999-05-13 | 2001-06-12 | The Boc Group, Inc. | Burner and combustion method for the production of flame jet sheets in industrial furnaces |
US6579085B1 (en) * | 2000-05-05 | 2003-06-17 | The Boc Group, Inc. | Burner and combustion method for the production of flame jet sheets in industrial furnaces |
US6780005B2 (en) | 2002-07-01 | 2004-08-24 | Smurfit-Stone Container Corporation | Burner concentrator |
CN101297159B (en) * | 2005-10-28 | 2011-02-09 | Sefmat公司 | Internal ignition type warm air combustor/generator |
US7581948B2 (en) * | 2005-12-21 | 2009-09-01 | Johns Manville | Burner apparatus and methods for making inorganic fibers |
US8523561B2 (en) * | 2010-06-09 | 2013-09-03 | Grand Mate Co., Ltd. | Combustor of water heater |
US9416960B2 (en) * | 2012-04-30 | 2016-08-16 | Bevolo Gas & Electric Lights, Inc. | Lighting apparatus |
EP2864702B1 (en) * | 2012-06-22 | 2017-02-22 | Ferndale Investments Pty Ltd | A heating torch |
US20150184848A1 (en) * | 2013-12-26 | 2015-07-02 | Rinnai Corporation | Tubular Burner |
US10364658B2 (en) | 2015-09-14 | 2019-07-30 | Vlp Lift Systems, Llc | Downhole pump with controlled traveling valve |
WO2019011736A1 (en) * | 2017-07-13 | 2019-01-17 | Bekaert Combustion Technology B.V. | Premix gas burner |
WO2019011738A1 (en) * | 2017-07-13 | 2019-01-17 | Bekaert Combustion Technology B.V. | Premix gas burner |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US554253A (en) * | 1896-02-11 | Robert gilmour finlay | ||
US1354295A (en) * | 1918-03-06 | 1920-09-28 | Esda Mfg Company | Gas-burner for water-heaters |
US1368120A (en) * | 1918-09-26 | 1921-02-08 | Cole Elnathan | Gas-burner |
FR733718A (en) * | 1931-06-26 | 1932-10-10 | Gas burner | |
US2985233A (en) * | 1956-08-03 | 1961-05-23 | Vaillant Joh Kg | Bunsen burners |
US3035632A (en) * | 1957-11-12 | 1962-05-22 | Sievert Ab Max | Gas torch for welding of plastic materials |
US3360029A (en) * | 1965-09-29 | 1967-12-26 | Du Pont | Flame treating burner device |
GB1198094A (en) * | 1967-06-05 | 1970-07-08 | Urbaine Et Provinciale D Elect | Improvements in or relating to Gas Burners |
DE6607199U (en) * | 1968-06-06 | 1971-01-21 | Fargas Spa | BURNERS FOR GAS FUELS |
ES172978Y (en) * | 1968-09-07 | 1972-12-16 | Polidoro | BURNER FOR GAS FLAME. |
BE755649R (en) * | 1969-10-24 | 1971-02-15 | Fond Du Lion | HEATING UNIT |
US3759245A (en) * | 1971-12-10 | 1973-09-18 | P Greco | Heating torch |
US3852025A (en) * | 1973-09-28 | 1974-12-03 | Int Magna Corp | Infra-red heater |
LU78821A1 (en) * | 1978-01-06 | 1978-06-26 | Columatec | GAS BURNER |
-
1978
- 1978-05-29 FR FR7816497A patent/FR2427551A1/en active Granted
-
1979
- 1979-05-21 EP EP79400319A patent/EP0006048B2/en not_active Expired
- 1979-05-21 DE DE7979400319T patent/DE2964465D1/en not_active Expired
-
1985
- 1985-12-27 US US06/813,760 patent/US4631023A/en not_active Ceased
-
1988
- 1988-03-07 US US07/171,108 patent/USRE33136E/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0006048A1 (en) | 1979-12-12 |
FR2427551B1 (en) | 1980-11-14 |
USRE33136E (en) | 1989-12-26 |
DE2964465D1 (en) | 1983-02-17 |
EP0006048B2 (en) | 1986-09-10 |
US4631023A (en) | 1986-12-23 |
FR2427551A1 (en) | 1979-12-28 |
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